10-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

______________________________________________________________________

FORM 10-K

______________________________________________________________________

ý ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the fiscal year ended December 31, 2015 or

¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from __________ to __________             

Commission file number 000-18911

______________________________________________________________________

GLACIER BANCORP, INC.

(Exact name of registrant as specified in its charter)

 ______________________________________________________________________

MONTANA	81-0519541
(State or other jurisdiction of incorporation or organization)	(IRS Employer Identification No.)
49 Commons Loop, Kalispell, Montana	59901
(Address of principal executive offices)	(Zip Code)

(406) 756-4200

(Registrant’s telephone number, including area code)

Securities registered pursuant to Section 12(b) of the Act:

Common Stock, $0.01 par value per share	NASDAQ Global Select Market
(Title of each class)	(Name of each exchange on which registered)

Securities registered pursuant to Section 12(g) of the Act: NONE

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.    ý  Yes    ¨  No

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act.    ¨  Yes    ý  No

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    ý  Yes    ¨  No

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Website, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T during the preceding 12 months.    ý  Yes    ¨  No

Indicate by check mark if disclosure of delinquent filers pursuant to item 405 of regulation S-K is not contained herein, and will not be contained, to the best of registrant’s knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K.  ý

Indicate by check mark whether the Registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company.

Large accelerated filer	ý		Accelerated filer	¨
Non-accelerated filer	¨	(Do not check if a smaller reporting company)	Smaller reporting company	¨

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).    ¨  Yes    ý  No

The aggregate market value of the voting common equity held by non-affiliates of the Registrant at June 30, 2015 (the last business day of the most recent second quarter), was $2,194,320,679 (based on the average bid and ask price as quoted on the NASDAQ Global Select Market at the close of business on that date).

The number of shares of Registrant’s common stock outstanding on February 3, 2016 was 76,086,288. No preferred shares are issued or outstanding.

Document Incorporated by Reference

Portions of the 2016 Annual Meeting Proxy Statement dated on or about March 17, 2016 are incorporated by reference into Parts I and III of this Form 10-K.

TABLE OF CONTENTS

		Page
PART I
Item 1	Business	4
Item 1A	Risk Factors	12
Item 1B	Unresolved Staff Comments	17
Item 2	Properties	17
Item 3	Legal Proceedings	17
Item 4	Mine Safety Disclosures	17
PART II
Item 5	Market for the Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities	18
Item 6	Selected Financial Data	20
Item 7	Management’s Discussion and Analysis of Financial Condition and Results of Operations	22
Item 7A	Quantitative and Qualitative Disclosure about Market Risk	57
Item 8	Financial Statements and Supplementary Data	58
	Reports of Independent Registered Public Accounting Firm	59
	Consolidated Statements of Financial Condition	62
	Consolidated Statements of Operations	63
	Consolidated Statements of Comprehensive Income	64
	Consolidated Statements of Changes in Stockholders' Equity	65
	Consolidated Statements of Cash Flows	66
	Notes to Consolidated Financial Statements	68
Item 9	Changes in and Disagreements with Accountants on Accounting and Financial Disclosures	113
Item 9A	Controls and Procedures	113
Item 9B	Other Information	113
PART III
Item 10	Directors, Executive Officers and Corporate Governance	114
Item 11	Executive Compensation	114
Item 12	Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters	114
Item 13	Certain Relationships and Related Transactions, and Director Independence	114
Item 14	Principal Accounting Fees and Services	114
PART IV
Item 15	Exhibits, Financial Statement Schedules	115
SIGNATURES		116

ABBREVIATIONS/ACRONYMS

AFS – available-for-sale investment securities	HMDA – Home Mortgage Disclosure Act
ALCO – Asset Liability Committee	HTM – held-to-maturity investment securities
ALLL or allowance – allowance for loan and lease losses	Interstate Act – Riegle-Neal Interstate Banking and Branching
ASC – Accounting Standards CodificationTM	Efficiency Act of 1994
Bank – Glacier Bank	IRS – Internal Revenue Service
Basel I – Capital Accord of the Basel Committee on Banking	LIBOR – London Interbank Offered Rate
Supervision	LIHTC – Low Income Housing Tax Credit
Basel III – third installment of the Basel Accords	NII – net interest income
BHCA – Bank Holding Company Act of 1956, as amended	NMTC – New Markets Tax Credits
Board – Glacier Bancorp, Inc.’s Board of Directors	NOW – negotiable order of withdrawal
bp or bps – basis point(s)	NRSRO – Nationally Recognized Statistical Rating Organizations
Cañon – Cañon Bank Corporation and its subsidiary,	OCI – other comprehensive income
Cañon National Bank	OREO – other real estate owned
CB – Montana Community Banks, Inc. and its subsidiary,	Patriot Act – Uniting and Strengthening America by Providing Appropriate
Community Bank, Inc.	Tools Required to Intercept and Obstruct Terrorism Act of 2001
CDE – Certified Development Entity	Proxy Statement – the 2016 Annual Meeting Proxy Statement
CDFI Fund – Community Development Financial Institutions Fund	Repurchase agreements – securities sold under agreements
CEO – Chief Executive Officer	to repurchase
CFO – Chief Financial Officer	S&P – Standard and Poor’s
CFPB – Consumer Financial Protection Bureau	SEC – United States Securities and Exchange Commission
Company – Glacier Bancorp, Inc.	SERP – Supplemental Executive Retirement Plan
COSO – Committee of Sponsoring Organizations of the	SOX Act – Sarbanes-Oxley Act of 2002
Treadway Commission	TDR – troubled debt restructuring
CRA – Community Reinvestment Act of 1977	VIE – variable interest entity
DIF – federal Deposit Insurance Fund
DFAST – Dodd-Frank Act stress test
Dodd-Frank Act – Dodd-Frank Wall Street Reform and
Consumer Protection Act
EVE – economic value of equity
Fannie Mae – Federal National Mortgage Association
FASB – Financial Accounting Standards Board
FDIC – Federal Deposit Insurance Corporation
FHLB – Federal Home Loan Bank
Final Rules – final rules implemented by the federal banking
agencies that amended regulatory risk-based capital rules
FNBR – FNBR Holding Corporation and its subsidiary,
First National Bank of the Rockies
FRB – Federal Reserve Bank
Freddie Mac – Federal Home Loan Mortgage Corporation
GAAP – accounting principles generally accepted in the
United States of America
Ginnie Mae – Government National Mortgage Association
GLB Act – Gramm-Leach-Bliley Financial Services
Modernization Act of 1999
GORE – GBCI Other Real Estate Owned

PART I

Item 1. Business

Glacier Bancorp, Inc. (“Company”), headquartered in Kalispell, Montana, is a Montana corporation incorporated in 2004 as a successor corporation to the Delaware corporation originally incorporated in 1990. The Company is a publicly-traded company and its common stock trades on the NASDAQ Global Select Market under the symbol GBCI. The Company provides commercial banking services from 144 locations in Montana, Idaho, Wyoming, Colorado, Utah and Washington through its wholly-owned bank subsidiary, Glacier Bank (“Bank”). The Company offers a wide range of banking products and services, including transaction and savings deposits, real estate, commercial, agriculture, and consumer loans and mortgage origination services. The Company serves individuals, small to medium-sized businesses, community organizations and public entities. For information regarding the Company’s lending, investment and funding activities, see “Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations.”

Subsidiaries

The Company includes the parent holding company and nine wholly-owned subsidiaries which consist of the Bank and eight non-bank subsidiaries. The eight non-bank subsidiaries include GBCI Other Real Estate Owned (“GORE”) and seven trust subsidiaries. The Company formed GORE to isolate certain foreclosed properties for administrative purposes and the remaining properties are currently held for sale. GORE is included in the Bank operating segment due to its insignificant activity. The Company owns the following trust subsidiaries, each of which issued trust preferred securities as Tier 1 capital instruments: Glacier Capital Trust II, Glacier Capital Trust III, Glacier Capital Trust IV, Citizens (ID) Statutory Trust I, Bank of the San Juans Bancorporation Trust I, First Company Statutory Trust 2001, and First Company Statutory Trust 2003. The trust subsidiaries are not included in the Company’s consolidated financial statements. As of December 31, 2015, the Company and its subsidiaries were not engaged in any operations in foreign countries.

The Bank consists of thirteen bank divisions, a treasury division and an information technology division. The Bank divisions include the following: Glacier Bank, Kalispell; First Security Bank of Missoula; Valley Bank of Helena; Big Sky Western Bank, Bozeman; Western Security Bank, Billings; and First Bank of Montana, Lewistown, all operating in Montana; as well as Mountain West Bank, Coeur d’Alene operating in Idaho, Utah and Washington; Citizens Community Bank, Pocatello, operating in Idaho; 1st Bank, Evanston, operating in Wyoming and Utah;  First Bank of Wyoming, Powell and First State Bank, Wheatland, each operating in Wyoming; North Cascades Bank, Chelan, operating in Washington; and Bank of the San Juans, Durango, operating in Colorado. The treasury division includes the Bank’s investment portfolio and wholesale borrowings and the information technology division includes the Bank’s internal data processing and information technology expenses. Each of the Bank divisions operate under separate names, management teams and directors. The Company considers the Bank to be its sole operating segment.

The Company provides full service brokerage services (selling products such as stocks, bonds, mutual funds, limited partnerships, annuities and other insurance products) through Raymond James Financial Services, a non-affiliated company. The Company shares in the commissions generated, without devoting significant employee time to this portion of the business.

Recent Acquisitions

The Company’s strategy is to profitably grow its business through internal growth and selective acquisitions. The Company continues to look for profitable expansion opportunities in existing markets and new markets in the Rocky Mountain states. During the last five years, the Company has completed the following acquisitions:

• Cañon Bank Corporation and its subsidiary, Cañon National Bank, on October 31, 2015 (collectively, “Cañon”);

• Montana Community Banks, Inc. and its subsidiary, Community Bank, on February 28, 2015 (collectively, “CB”);

• FNBR Holding Corporation and its subsidiary, First National Bank of the Rockies, on August 31, 2014 (collectively, “FNBR”);

• North Cascades Bancshares, Inc. and its subsidiary, North Cascades National Bank, on July 31, 2013; and

• Wheatland Bankshares, Inc. and its subsidiary, First State Bank, on May 31, 2013.

Market Area

The Company and the Bank have 144 locations, of which 9 are loan or administration offices, in 48 counties within 6 states including Montana, Idaho, Wyoming, Colorado, Utah, and Washington. The Company and the Bank have 59 locations in Montana, 28 locations in Idaho, 17 locations in Wyoming, 23 locations in Colorado, 4 locations in Utah and 13 locations in Washington.

The market area’s economic base primarily focuses on tourism, construction, mining, energy, manufacturing, agriculture, service industry, and health care. The tourism industry is highly influenced by national parks, ski resorts, significant lakes and rural scenic areas.

4

Competition

Commercial banking is a highly competitive business and operates in a rapidly changing environment. There are a large number of depository institutions including savings and loans, commercial banks, and credit unions in the markets in which the Company has offices. Competition is also increasing for deposit and lending services from internet-based competitors. Non-depository financial service institutions, primarily in the securities, insurance and retail industries, have also become competitors for retail savings, investment funds and lending activities. In addition to offering competitive interest rates, the principal methods used by the Bank to attract deposits include the offering of a variety of services including on-line banking, mobile banking and convenient office locations and business hours. The primary factors in competing for loans are interest rates and rate adjustment provisions, loan maturities, loan fees, and the quality of service to borrowers and brokers.

Based on the Federal Deposit Insurance Corporation (“FDIC”) summary of deposits survey as of June 30, 2015, the Bank has approximately 24 percent of the total FDIC insured deposits in the 13 counties that it services in Montana. In Idaho, the Bank has approximately 7 percent of the deposits in the 9 counties that it services. In Wyoming, the Bank has 26 percent of the deposits in the 8 counties it services. In Colorado, the Bank has 5 percent of the deposits in the 9 counties it services. In Utah, the Bank has 11 percent of the deposits in the 3 counties it services. In Washington, the Bank has 4 percent of the deposits in the 6 counties it services.

Employees

As of December 31, 2015, the Company and the Bank employed 2,245 persons, 2,021 of whom were employed full time and none of whom were represented by a collective bargaining group. The Company and the Bank provide their employees with a comprehensive benefit program, including health, dental and vision insurance, life and accident insurance, long-term disability coverage, vacation and sick leave, 401(k) plan, profit sharing plan and a stock-based compensation plan. The Company considers its employee relations to be excellent. See Note 13 in the Consolidated Financial Statements in “Item 8. Financial Statements and Supplementary Data” for detailed information regarding employee benefit plans and eligibility requirements.

Board of Directors and Committees

The Company’s Board of Directors (“Board”) has the ultimate authority and responsibility for overseeing risk management at the Company. Some aspects of risk oversight are fulfilled at the Board level, and the Board delegates other aspects of its risk oversight function to its committees. The Board has established, among others, an Audit Committee, a Compensation Committee, a Nominating/Corporate Governance Committee, a Compliance Committee, and a Risk Oversight Committee. Additional information regarding Board committees is set forth under the heading “Meetings and Committees of the Board of Directors - Committee Membership” in the Company’s 2016 Annual Meeting Proxy Statement and is incorporated herein by reference.

Website Access

Copies of the Company’s Annual Report on Form 10-K, Quarterly Reports on Form 10-Q, Current Reports on Form 8-K and amendments to those reports filed or furnished pursuant to Section 13(a) or 15(d) of the Securities Exchange Act of 1934 are available free of charge through the Company’s website (www.glacierbancorp.com) as soon as reasonably practicable after the Company has filed the material with, or furnished it to, the United States Securities and Exchange Commission (“SEC”). Copies can also be obtained by accessing the SEC’s website (www.sec.gov).

Supervision and Regulation

The following discussion provides an overview of certain elements of the extensive regulatory framework applicable to the Company and the Bank. This regulatory framework is primarily designed for the protection of depositors, the DIF and the banking system as a whole, rather than specifically for the protection of shareholders. Due to the breadth and growth of this regulatory framework, the costs of compliance continue to increase in order to monitor and satisfy these requirements.

To the extent this section describes statutory and regulatory provisions, it does not purport to be complete and is qualified by reference to those provisions. These statutes and regulations, as well as related policies, continue to be subject to change by Congress, state legislatures and federal and state regulators. Changes in statutes, regulations or regulatory policies applicable to the Company, including the interpretation or implementation thereof cannot be predicted and could have a material effect on the Company’s business or operations. Numerous changes to the statutes, regulations or regulatory policies applicable to the Company have been made or proposed in recent years. Continued efforts to monitor and comply with new regulatory requirements add to the complexity and cost of the Company’s business.

The Company is subject to regulation and supervision by the Federal Reserve and regulation by the State of Montana as a Montana corporation. The Company is also subject to the disclosure and regulatory requirements of the Securities Act of 1933, as amended, and the Securities Exchange Act of 1934, as amended, both as administered by the Securities and Exchange Commission. The Bank is subject to regulation and supervision by the Montana Department of Administration's Banking and Financial Institutions Division, the FDIC, and, with respect to branches of the Bank outside of Montana, applicable state regulators.

5

Federal Bank Holding Company Regulation

General. The Company is a bank holding company as defined in the Bank Holding Company Act of 1956, as amended (“BHCA”), due to its ownership of the Bank. As a bank holding company, the Company is subject to regulation, supervision and examination by the Federal Reserve. In general, the BHCA limits the business of bank holding companies to owning or controlling banks and engaging in other activities closely related to banking. The Company must also file reports with and provide additional information to the Federal Reserve.

Holding Company Bank Ownership. The BHCA requires every bank holding company to obtain the prior approval of the Federal Reserve before 1) acquiring, directly or indirectly, ownership or control of any voting shares of another bank or bank holding company if, after such acquisition, it would own or control more than 5 percent of such shares; 2) acquiring all or substantially all of the assets of another bank or bank holding company; or 3) merging or consolidating with another bank holding company.

Holding Company Control of Non-banks. With some exceptions, the BHCA also prohibits a bank holding company from acquiring or retaining direct or indirect ownership or control of more than 5 percent of the voting shares of any company that is not a bank or bank holding company, or from engaging directly or indirectly in activities other than those of banking, managing or controlling banks or providing services for its subsidiaries. The principal exceptions to these prohibitions involve certain non-bank activities that, by federal statute, agency regulation or order, have been identified as activities closely related to the business of banking or of managing or controlling banks.

Transactions with Affiliates. Bank subsidiaries of a bank holding company are subject to restrictions imposed by the Federal Reserve Act on extensions of credit to the holding company or its subsidiaries, on investments in securities, and on the use of securities as collateral for loans to any borrower. The Dodd-Frank Wall Street Reform and Consumer Protection Act (“Dodd-Frank Act”) further extended the definition of an “affiliate” and treats credit exposure arising from derivative transactions, securities lending and borrowing transactions as a covered transaction under the regulations. It also expands the scope of covered transactions required to be collateralized, requires collateral to be maintained at all times for covered transactions required to be collateralized, and places limits on acceptable collateral. These regulations and restrictions may limit the Company’s ability to obtain funds from the Bank for its cash needs, including funds for payment of dividends, interest and operational expenses.

Tying Arrangements. The Company is prohibited from engaging in certain tie-in arrangements in connection with any extension of credit, sale or lease of property or furnishing of services. For example, with certain exceptions, neither the Company nor the Bank may condition an extension of credit to a customer on either 1) a requirement that the customer obtain additional services provided by the Company or the Bank or 2) an agreement by the customer to refrain from obtaining other services from a competitor.

Support of Bank Subsidiaries. Under Federal Reserve policy and the Dodd-Frank Act, the Company is expected to act as a source of financial and managerial strength to the Bank. This means that the Company is required to commit, as necessary, capital and resources to support the Bank. Any capital loans a bank holding company makes to its bank subsidiaries are subordinate to deposits and to certain other indebtedness of the bank subsidiaries.

State Law Restrictions. As a Montana corporation, the Company is subject to certain limitations and restrictions under applicable Montana corporate law. For example, state law restrictions in Montana include limitations and restrictions relating to indemnification of directors, distributions to shareholders, transactions involving directors, officers or interested shareholders, maintenance of books, records and minutes, and observance of certain corporate formalities.

Federal and State Regulation of the Bank

General. Deposits in the Bank, a Montana state-chartered bank with branches in Montana, Colorado, Idaho, Utah, Washington and Wyoming, are insured by the FDIC. The Bank is subject to primary supervision, periodic examination and regulation of the FDIC and the Montana Department of Administration's Banking and Financial Institutions Division as the Bank’s primary regulators. These agencies have the authority to prohibit the Bank from engaging in what they believe constitute unsafe or unsound banking practices. The federal laws that apply to the Bank regulate, among other things, the scope of its business, its investments, its reserves against deposits, the timing of the availability of deposited funds, and the nature, amount of, and collateral for loans. Federal laws also regulate community reinvestment and insider credit transactions and impose safety and soundness standards.

6

Consumer Protection. Although the Bank is not supervised directly by the Consumer Financial Protection Bureau (“CFPB”), its consumer banking activities are subject to regulation by the CFPB. The Bank is subject to a variety of federal and state consumer protection laws and regulations that govern its relationship with consumers including laws and regulations that impose certain disclosure requirements and regulate the manner in which the Bank takes deposits, make and collect loans, and provide other services. In recent years, examination and enforcement by state and federal banking agencies for non-compliance with consumer protection laws and their implementing regulations have increased and become more intense. Failure to comply with these laws and regulations may subject the Bank to various penalties, including but not limited to, enforcement actions, injunctions, fines, civil liability, criminal penalties, punitive damages, and the loss of certain contractual rights.

Community Reinvestment. The Community Reinvestment Act of 1977 (“CRA”) requires that, in connection with examinations of financial institutions within their jurisdiction, federal bank regulators must evaluate the record of financial institutions in meeting the credit needs of its local communities, including low and moderate-income neighborhoods, consistent with the safe and sound operation of those banks. A bank’s community reinvestment record is also considered by the applicable banking agencies in evaluating mergers, acquisitions, and applications to open a branch or facility.

Insider Credit Transactions. Banks are also subject to certain restrictions on extensions of credit to executive officers, directors, principal shareholders, and their related interests. Extensions of credit 1) must be made on substantially the same terms, including interest rates and collateral, and follow credit underwriting procedures that are at least as stringent, as those prevailing at the time for comparable transactions with persons not related to the lending bank; and 2) must not involve more than the normal risk of repayment or present other unfavorable features. Banks are also subject to certain lending limits and restrictions on overdrafts to insiders. A violation of these restrictions may result in the assessment of substantial civil monetary penalties, regulatory enforcement actions, and other regulatory sanctions. The Dodd-Frank Act and federal regulations place additional restrictions on loans to insiders, and generally prohibits loans to senior officers other than for certain specified purposes.

Regulation of Management. Federal law 1) sets forth circumstances under which officers or directors of a bank may be removed by the institution’s federal supervisory agency; 2) places restraints on lending by a bank to its executive officers, directors, principal shareholders, and their related interests; and 3) generally prohibits management personnel of a bank from serving as directors or in other management positions of another financial institution whose assets exceed a specified amount or which has an office within a specified geographic area.

Safety and Soundness Standards. Certain non-capital safety and soundness standards are also imposed upon banks. These standards cover, among other things, internal controls, information systems and internal audit systems, loan documentation, credit underwriting, interest rate exposure, asset growth, compensation, fees and benefits, such other operational and managerial standards as the agency determines to be appropriate, and standards for asset quality, earnings and stock valuation. Each insured depository institution must implement a comprehensive written information security program that includes administrative, technical, and physical safeguards appropriate to the institution’s size and complexity and the nature and scope of its activities. The information security program must be designed to ensure the security and confidentiality of customer information, protect against unauthorized access to or use of such information and ensure the proper disposal of customer and consumer information. An institution that fails to meet these standards may be required to submit a compliance plan, or submit to regulatory sanctions.

Interstate Banking and Branching

The Riegle-Neal Interstate Banking and Branching Efficiency Act of 1994 (“Interstate Act”) together with the Dodd-Frank Act, relaxed prior interstate branching restrictions under federal law by permitting, subject to regulatory approval, state and federally chartered commercial banks to establish branches in states where the laws permit banks chartered in such states to establish branches. The Interstate Act requires regulators to consult with community organizations before permitting an interstate institution to close a branch in a low-income area. Federal bank regulations prohibit banks from using their interstate branches primarily for deposit production and federal bank regulatory agencies have implemented a loan-to-deposit ratio screen to ensure compliance with this prohibition.

7

Dividends

A principal source of the Company’s cash is from dividends received from the Bank, which are subject to government regulation and limitation on the Bank’s ability to pay dividends. Regulatory authorities may prohibit banks and bank holding companies from paying dividends in a manner that would constitute an unsafe or unsound banking practice. In addition, a bank may not pay cash dividends if that payment could reduce the amount of its capital below that necessary to meet minimum applicable regulatory capital requirements. The Bank is subject to Montana state law and cannot declare a dividend greater than the previous two years' net earnings without providing notice to the state regulators. Additionally, current guidance from the Federal Reserve provides, among other things, that dividends per share on the Company’s common stock generally should not exceed earnings per share, measured over the previous four fiscal quarters. The third installment of the Basel Accords (“Basel III”) introduces additional limitations on a bank’s ability to issue dividends by requiring banks to maintain a common equity conservation buffer of at least an additional 2.5 percent of risk-weighted assets over the minimum required capital ratio to avoid restrictions on dividends, redemptions and executive bonus payments. The Federal Reserve has issued a policy statement on the payment of cash dividends by bank holding companies which expresses the view that although no specific regulations restrict dividend payments by bank holding companies other than state corporate laws, a bank holding company should not pay cash dividends unless the company’s earnings for the past year are sufficient to cover both the cash dividends and a prospective rate of earnings retention that is consistent with the bank holding company’s capital needs, asset quality and overall financial condition.

Capital Adequacy

Regulatory Capital Guidelines. Federal bank regulatory agencies use capital adequacy guidelines in the examination and regulation of bank holding companies and banks. The guidelines are “risk-based,” meaning that they are designed to make capital requirements more sensitive to differences in risk profiles among banks and bank holding companies. On July 2, 2013, the federal banking agencies implemented the final rules (“Final Rules”) that substantially amended the regulatory risk-based capital rules applicable to the Company and the Bank. The phase-in period for the Final Rules began for the Bank on January 1, 2015, with full compliance with the Final Rules phased in by January 1, 2019.

Effective January 1, 2015, Basel III:

• creates “Tier 1 Common Equity,” a new measure of regulatory capital closer to pure tangible common equity than the present Tier 1 definition;

• establishes a required minimum risk-based capital ratio for Tier 1 Common Equity at 4.5 percent and adds a 2.5 percent capital conservation buffer;

• increases the required Tier 1 risk-based capital ratio to 6.0 percent and the required Total risk-based capital ratio to 8.0 percent;

• increases the required leverage ratio to 4 percent; and

• allows for permanent grandfathering of non-qualifying instruments, such as trust preferred securities, issued prior to May 19, 2010 for depository institution holding companies with less than $15 billion in total assets as of year end 2009, subject to a limit of 25 percent of Tier 1 capital.

The new capital rules require the Bank to meet the capital conservation buffer requirement by 2019 in order to avoid constraints on capital distributions, such as dividends and equity repurchases, and certain bonus compensation for executive officers. These new capital rules also change the risk-weights of certain assets for purposes of the risk-based capital ratios and phases out certain instruments as qualifying capital. The Final Rules also contain revisions to the prompt corrective action framework, which is designed to place restrictions on insured depository institutions, including the Bank, if their capital levels begin to show signs of weakness. Under the prompt corrective action requirements, which are designed to complement the capital conservation buffer, insured depository institutions will be required to meet the following increased capital level requirements in order to qualify as “well-capitalized:” (i) a new common equity Tier 1 capital ratio of 6.5%; (ii) a Tier 1 capital ratio of 8%; (iii) a total capital ratio of 10%; and (iv) a Tier 1 leverage ratio of 5%.

The application of the Final Rules may result in lower returns on invested capital, require the raising of additional capital or require regulatory action if the Bank were unable to comply with such requirements. In addition, management may be required to modify its business strategy due to the changes to the asset risk-weights for risk-based capital calculations and the requirement to meet the capital conservation buffers. The imposition of liquidity requirements in connection with Basel III could also cause the Bank to increase its holdings of liquid assets, change its business strategy, and make other changes to the terms of its funding. Management believes that, as of December 31, 2015, the Company would meet all capital adequacy requirements under the Basel III capital rules on a fully phased-in basis as if all such requirements were currently in effect.

8

Regulatory Oversight and Examination

The Federal Reserve conducts periodic inspections of bank holding companies. The supervisory objectives of the inspection program are to ascertain whether the financial strength of a bank holding company is maintained on an ongoing basis and to determine the effects or consequences of transactions between a bank holding company or its non-banking subsidiaries and its bank subsidiaries. For bank holding companies under $10 billion in assets, the inspection type and frequency varies depending on asset size, complexity of the organization, and the bank holding company’s rating at its last inspection.

Banks are subject to periodic examinations by their primary regulators. Bank examinations have evolved from reliance on transaction testing in assessing a bank’s condition to a risk-focused approach. These examinations are extensive and cover the entire breadth of operations of a bank. Generally, safety and soundness examinations occur on an 18-month cycle for banks under $500 million in total assets that are well capitalized and without regulatory issues, and 12-months otherwise. Examinations alternate between the federal and state bank regulatory agency or may occur on a combined schedule. The frequency of consumer compliance and CRA examinations is linked to the size of the institution and its compliance and CRA ratings at its most recent examinations. However, the examination authority of the Federal Reserve and the FDIC allows them to examine supervised banks as frequently as deemed necessary based on the condition of the bank or as a result of certain triggering events.

On December 18, 2015, the federal banking regulators issued guidance reminding financial institutions to re‑examine existing regulations regarding concentrations in commercial real estate lending. The purpose of the guidance is to guide banks in developing risk management practices and capital levels commensurate with the level and nature of real estate concentrations. The banking regulators are directed to examine each bank’s exposure to commercial real estate loans that are dependent on cash flow from the real estate held as collateral and to focus their supervisory resources on institutions that may have significant commercial real estate loan concentration risk. The guidance provides that the strength of an institution’s lending and risk management practices with respect to such concentrations will be taken into account in evaluating capital adequacy and does not specifically limit a bank’s commercial real estate lending to a specified concentration level.

Corporate Governance and Accounting

Sarbanes-Oxley Act of 2002. The Sarbanes-Oxley Act of 2002 (“SOX Act”) addresses, among other things, corporate governance, auditing and accounting, enhanced and timely disclosure of corporate information, and penalties for non-compliance. Generally, the SOX Act 1) requires chief executive officers and chief financial officers to certify to the accuracy of periodic reports filed with the SEC; 2) imposes specific and enhanced corporate disclosure requirements; 3) accelerates the time frame for reporting of insider transactions and periodic disclosures by public companies; 4) requires companies to adopt and disclose information about corporate governance practices, including whether or not they have adopted a code of ethics for senior financial officers and whether the audit committee includes at least one “audit committee financial expert;” and 5) requires the SEC, based on certain enumerated factors, to regularly and systematically review corporate filings.

As a publicly reporting company, the Company is subject to the requirements of the SOX Act and related rules and regulations issued by the SEC and NASDAQ. After enactment, the Company updated its policies and procedures to comply with the SOX Act’s requirements and has found that such compliance, including compliance with Section 404 relating to the Company’s internal control over financial reporting, has resulted in significant additional expense for the Company. The Company will continue to incur additional expense in its ongoing compliance.

Anti-Terrorism

USA Patriot Act of 2001. The Uniting and Strengthening America by Providing Appropriate Tools Required to Intercept and Obstruct Terrorism Act of 2001 (“Patriot Act”), intended to combat terrorism, was renewed with certain amendments in 2006. The Patriot Act, in relevant part, 1) prohibits banks from providing correspondent accounts directly to foreign shell banks; 2) imposes due diligence requirements on banks opening or holding accounts for foreign financial institutions or wealthy foreign individuals; 3) requires financial institutions to establish an anti-money-laundering compliance program; and 4) eliminates civil liability for persons who file suspicious activity reports. The Patriot Act also includes provisions providing the government with power to investigate terrorism, including expanded government access to bank account records. Bank regulators are directed to consider a holding company’s and bank’s effectiveness in combating money laundering when ruling on BHCA and Bank Merger Act applications. The Company and the Bank have established compliance programs designed to comply with the Patriot Act requirements.

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Financial Services Modernization

Gramm-Leach-Bliley Act of 1999. The Gramm-Leach-Bliley Financial Services Modernization Act of 1999 (“GLB Act”) brought about significant changes to the laws affecting banks and bank holding companies. Generally, the GLB Act 1) repeals historical restrictions on preventing banks from affiliating with securities firms; 2) provides a uniform framework for the activities of banks, savings institutions and their holding companies; 3) broadens the activities that may be conducted by national banks and banking subsidiaries of bank holding companies; 4) provides an enhanced framework for protecting the privacy of consumer information and requires notification to consumers of bank privacy policies; and 5) addresses a variety of other legal and regulatory issues affecting both day-to-day operations and long-term activities of financial institutions. The Bank is subject to FDIC regulations implementing the privacy protection provisions of the GLB Act. These regulations require banks to disclose their privacy policy, including informing consumers of their information sharing practices and informing consumers of their rights to opt out of certain practices.

Deposit Insurance

The Bank's deposits are insured under the Federal Deposit Insurance Act, up to the maximum applicable limits and are subject to deposit insurance assessments by the FDIC designed to tie what banks pay for deposit insurance to the risks they pose. The Dodd-Frank Act redefined the assessment base used for calculating FDIC deposit insurance assessments by requiring the FDIC to determine deposit insurance assessments based on assets instead of deposits. Assessments are now based on the average consolidated total assets less average tangible equity capital of a financial institution. In addition, the Dodd-Frank Act raised the minimum designated reserve ratio (the FDIC is required to set the reserve ratio each year) of the DIF from 1.15 percent to 1.35 percent; requires that the DIF reserve ratio meet 1.35 percent by 2020; and eliminates the requirement that the FDIC pay dividends to insured depository institutions when the reserve ratio exceeds certain thresholds. In October 2015, the FDIC stated that it would offset the effect of the increase in the minimum reserve ratio on insured depository institutions with total consolidated assets of less than $10 billion by imposing a surcharge on insured depository institutions with total consolidated assets of $10 billion or more. No institution may pay a dividend if it is in default on its federal deposit insurance assessment. The FDIC may also prohibit any insured institution from engaging in any activity determined by regulation or order to pose a serious risk to the DIF.

The FDIC may terminate the deposit insurance of any insured depository institution if it determines after a hearing that the institution has engaged or is engaging in unsafe or unsound practices, is in an unsafe or unsound condition to continue operations, or has violated any applicable law, regulation, order or any condition imposed by an agreement with the FDIC. Management is not aware of any existing circumstances which would result in termination of the deposit insurance of the Bank.

Insurance of Deposit Accounts. The Dodd-Frank Act permanently increased FDIC deposit insurance from $100,000 to $250,000 per depositor. The FDIC insurance coverage limit applies per depositor, per insured depository institution for each account ownership category.

The Dodd-Frank Wall Street Reform and Consumer Protection Act

On July 21, 2010, the Dodd-Frank Act was signed into law. The Dodd-Frank Act significantly changed the bank regulatory structure and is affecting the lending, deposit, investment, trading and operating activities of financial institutions and the bank holding companies, including the Company and the Bank. Some of the provisions of the Dodd-Frank Act that may impact the Company's business are summarized below.

Corporate Governance. The Dodd-Frank Act requires publicly traded companies to provide their shareholders with 1) a non-binding shareholder vote on executive compensation; 2) a non-binding shareholder vote on the frequency of such vote; 3) disclosure of “golden parachute” arrangements in connection with specified change in control transactions; and 4) a non-binding shareholder vote on golden parachute arrangements in connection with these change in control transactions. Effective August 5, 2015, the SEC adopted a rule mandated by the Dodd-Frank Act that requires a public company to disclose the ratio of the compensation of its Chief Executive Officer (“CEO”) to the median compensation of its employees. This rule is intended to provide shareholders with information that they can use to evaluate a CEO’s compensation. Companies will be required to provide disclosure of their pay ratios for their first fiscal year beginning on or after January 1, 2017.

Prohibition Against Charter Conversions of Financial Institutions. The Dodd-Frank Act generally prohibits a depository institution from converting from a state to federal charter, or vice versa, while it is the subject to an enforcement action unless the depository institution seeks prior approval from its primary regulator and complies with specified procedures to ensure compliance with the enforcement action.

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Repeal of Demand Deposit Interest Prohibition. The Dodd-Frank Act repeals the federal prohibitions on the payment of interest on demand deposits, thereby permitting depository institutions to pay interest on business transaction and other accounts.

Consumer Financial Protection Bureau. The Dodd-Frank Act established the CFPB and empowered it to exercise broad rulemaking, supervision and enforcement authority for a wide range of consumer protection laws. The Bank is subject to consumer protection regulations issued by the CFPB, but as a financial institution with assets of less than $10 billion, the Bank is generally not subject to supervision and examination by the CFPB. The CFPB has issued and continues to issue numerous regulations under which the Company will continue to incur additional expense in its ongoing compliance with CFPB regulations. Significant recent CFPB developments that may affect the Bank’s operations and compliance costs include:

• The issuance of proposals to ban consumer finance companies from including arbitration clauses that block class action lawsuits in their consumer contracts. The proposals under consideration would require that companies that choose to use arbitration clauses for individual disputes submit to the CFPB the arbitration claims filed and awards issued. The current proposals would apply to credit cards, checking and deposit accounts, prepaid cards, money transfer services, certain auto loans and installment loans.

• Positions taken by the CFPB on fair lending, including applying the disparate impact theory which could make it more difficult for lenders to charge different rates or apply different terms to loans to different customers.

• The issuance of a final rule amending Regulation C, which implements the Home Mortgage Disclosure Act (“HMDA”), requiring most lenders to report expanded information in order for the CFPB to more effectively monitor fair lending concerns and other information shortcomings identified by the CFPB.

• Positions taken by the CFPB regarding the Electronic Fund Transfer Act and Regulation E, which require companies to obtain consumer authorizations before automatically debiting a consumer’s account for pre-authorized electronic funds transfers.

• Actions taken to regulate and supervise credit bureaus and debt collections.

Proposed Legislation

The economic and political environment of the past several years has led to a number of proposed legislative, governmental and regulatory initiatives that may significantly impact the banking industry. Other regulatory initiatives by federal and state banking agencies may also significantly impact the Bank’s business. The Bank cannot predict whether these or any other proposals will be enacted or the ultimate impact of any such initiatives on its operations, competitive situation, financial conditions, or results of operations.

Effects of Federal Government Monetary Policy

The Company’s earnings and growth are affected not only by general economic conditions, but also by the fiscal and monetary policies of the federal government, particularly the Federal Reserve. The Federal Reserve implements national monetary policy for such purposes of promoting maximum employment, stable prices and moderate long-term interest rates. Through its open market operations in U.S. government securities, control of the discount rate applicable to borrowings from the Federal Reserve, establishment of reserve requirements against certain deposits, and control of the rate of interest applicable to excess reserve balances and reverse repurchase agreements, the Federal Reserve influences the availability and cost of money and credit, and ultimately, a range of economic variables including employment, output, and prices of goods and services. The nature and impact of future changes in monetary policies and their impact on the Company or the Bank cannot be predicted with certainty.

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Item 1A. Risk Factors

An investment in the Company’s common stock involves certain risks. The following is a discussion of what the Company believes are the most significant risks and uncertainties that may affect the Company’s business, financial condition and future results.

National and global economic and geopolitical conditions could adversely affect the Company’s future results of operations or market price of its stock.

The Company’s business is impacted by factors such as economic, political and market conditions, broad trends in industry and finance, and changes in government monetary policies, all of which are beyond the Company’s control. National and global economies appear to remain fragile, as evidenced by recent market volatility resulting from, among other things, perceived weakness in the Chinese economy and the precipitous decline in oil prices. Future economic conditions cannot be predicted, and any renewed deterioration in the economies of the nation as a whole or in the Company’s markets could have an adverse effect, which could be material, on its business, financial condition, results of operations and prospects, and could cause the market price of the Company’s stock to decline.

Economic conditions in the market areas the Bank serves may adversely impact its earnings and could increase the credit risk associated with its loan portfolio and the value of its investment portfolio.

Substantially all of the Bank’s loans are to businesses and individuals in Montana, Idaho, Wyoming, Utah, Colorado and Washington, and a softening of the economies in these market areas could have a material adverse effect on its business, financial condition, results of operations and prospects. Although the Company has minimal exposure to the energy industry, a further decline in this sector could have an unfavorable effect on the Company’s performance. Any future deterioration in economic conditions nationally or in the markets the Bank serves could result in the following consequences, any of which could have an adverse impact, which could be material, on the Company’s business, financial condition, results of operations and prospects:

• loan delinquencies may increase;

• problem assets and foreclosures may increase;

• collateral for loans made may decline in value, in turn reducing customers’ borrowing power, reducing the value of assets and collateral associated with existing loans;

• certain securities within the investment portfolio could become other-than-temporarily impaired, requiring a write-down through earnings to fair value, thereby reducing equity;

• low cost or non-interest bearing deposits may decrease; and

• demand for loan and other products and services may decrease.

The allowance for loan and lease losses may not be adequate to cover actual loan losses, which could adversely affect earnings.

The Bank maintains an allowance for loan and lease losses (“ALLL” or “allowance”) in an amount that it believes is adequate to provide for losses in the loan portfolio. While the Bank strives to carefully manage and monitor credit quality and to identify loans that may become non-performing, at any time there are loans included in the portfolio that will result in losses, but that have not been identified as non-performing or potential problem loans. With respect to real estate loans and property taken in satisfaction of such loans (“other real estate owned” or “OREO”), the Bank can be required to recognize significant declines in the value of the underlying real estate collateral or OREO quite suddenly as values are updated through appraisals and evaluations (new or updated) performed in the normal course of monitoring the credit quality of the loans. There are many factors that can cause the value of real estate to decline, including declines in the general real estate market, changes in methodology applied by appraisers, and/or using a different appraiser than was used for the prior appraisal or evaluation. The Bank’s ability to recover on real estate loans by selling or disposing of the underlying real estate collateral is adversely impacted by declining values, which increases the likelihood the Bank will suffer losses on defaulted loans beyond the amounts provided for in the ALLL. This, in turn, could require material increases in the Bank’s provision for loan losses and ALLL. By closely monitoring credit quality, the Bank attempts to identify deteriorating loans before they become non-performing assets and adjust the ALLL accordingly. However, because future events are uncertain, and if difficult economic conditions occur, there may be loans that deteriorate to a non-performing status in an accelerated time frame. As a result, future additions to the ALLL may be necessary beyond the levels commensurate with any loan growth. Because the loan portfolio contains a number of loans with relatively large balances, the deterioration of one or a few of these loans may cause a significant increase in non-performing loans, requiring an increase to the ALLL. Additionally, future significant additions to the ALLL may be required based on changes in the mix of loans comprising the portfolio, changes in the financial condition of borrowers, which may result from changes in economic conditions, or changes in the assumptions used in determining the ALLL. Additionally, federal and state banking regulators, as an integral part of their supervisory function, periodically review the Bank’s loan portfolio and the adequacy of the ALLL. These regulatory authorities may require the Bank to recognize further loan loss provisions or charge-offs based upon their judgments, which may be different from the Bank’s judgments. Any increase in the ALLL could have an adverse effect, which could be material, on the Company’s financial condition and results of operations.

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The Bank has a high concentration of loans secured by real estate, so any future deterioration in the real estate markets could require material increases in the ALLL and adversely affect the Company’s financial condition and results of operations.

The Bank has a high degree of concentration in loans secured by real estate. Any future deterioration in the real estate markets could adversely impact borrowers’ ability to repay loans secured by real estate and the value of real estate collateral, thereby increasing the credit risk associated with the loan portfolio. The Bank’s ability to recover on these loans by selling or disposing of the underlying real estate collateral would be adversely impacted by any decline in real estate values, which increases the likelihood that the Bank will suffer losses on defaulted loans secured by real estate beyond the amounts provided for in the ALLL. This, in turn, could require material increases in the ALLL which would adversely affect the Company’s financial condition and results of operations.

There can be no assurance the Company will be able to continue paying dividends on the common stock at recent levels.

The Company may not be able to continue paying quarterly dividends commensurate with recent levels given that the ability to pay dividends on the Company’s common stock depends on a variety of factors. The payment of dividends is subject to government regulation in that regulatory authorities may prohibit banks and bank holding companies from paying dividends that would constitute an unsafe or unsound banking practice. This is heavily based on the Company’s earnings and capital levels which currently are strong. Current guidance from the Federal Reserve provides, among other things, that dividends per share should not exceed earnings per share measured over the previous four fiscal quarters. The Bank is also subject to Montana state law and cannot declare a dividend greater than the previous two years’ net earnings without providing notice to the state. As a result, future dividends will generally depend on the level of earnings at the Bank.

The Company may not be able to continue to grow organically or through acquisitions.

Historically, the Company has expanded through a combination of organic growth and acquisitions. If market and regulatory conditions remain challenging, the Company may be unable to grow organically or successfully complete or integrate potential future acquisitions. The Company has historically used its strong stock currency to complete acquisitions. Downturns in the stock market and the Company’s stock could have an impact on future acquisitions. Furthermore, there can be no assurance that the Company can successfully complete such transactions, since they are subject to regulatory review and approval.

The FDIC has adopted a plan to increase the federal Deposit Insurance Fund, including additional future premium increases and special assessments.

The FDIC has implemented a plan to increase insurance premiums and has imposed special assessments to rebuild and maintain the federal deposit insurance fund, and any additional future premium increases or special assessments could have a material adverse effect on the Company’s business, financial condition, and results of operations. Additional information regarding this matter is set forth under the heading “Supervision and Regulation” in “Item 1. Business.”

The Dodd-Frank Act broadened the base for FDIC insurance assessments and assessments are now based on the average consolidated total assets less average tangible equity capital of a financial institution. In addition, the Dodd-Frank Act established 1.35 percent as the minimum Deposit Insurance Fund reserve ratio. The FDIC has determined that the fund reserve ratio should be 2.0 percent and has adopted a plan under which it will meet the statutory minimum fund reserve ratio of 1.35 percent by the statutory deadline of September 30, 2020. The Dodd-Frank Act requires the FDIC to offset the effect on institutions with assets less than $10 billion of the increase in the statutory minimum fund reserve ratio to 1.35 percent from the former statutory minimum of 1.15 percent. As a result, the deposit insurance assessments to be paid by the Bank could increase.

Despite the FDIC’s actions to restore the DIF, the DIF could suffer additional losses in the future due to failures of insured institutions. There could be additional significant deposit insurance premium increases, special assessments or prepayments in order to restore the insurance fund’s reserve ratio. Any significant premium increases or special assessments could have a material adverse effect on the Company’s financial condition and results of operations.

The Bank’s loan portfolio mix increases the exposure to credit risks tied to deteriorating conditions.

The loan portfolio contains a high percentage of commercial, commercial real estate, real estate acquisition and development loans in relation to the total loans and total assets. These types of loans have historically been viewed as having more risk of default than residential real estate loans or certain other types of loans or investments. In fact, the FDIC has issued pronouncements alerting banks of its concern about banks with a heavy concentration of commercial real estate loans. These types of loans also typically are larger than residential real estate loans and other commercial loans. Because the Bank’s loan portfolio contains a significant number of commercial and commercial real estate loans with relatively large balances, the deterioration of one or more of these loans may cause a significant increase in non-performing loans. An increase in non-performing loans could result in a loss of earnings from these loans, an increase in the provision for loan losses, or an increase in loan charge-offs, which could have a material adverse impact on results of operations and financial condition.

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Non-performing assets could increase, which could adversely affect the Company’s results of operations and financial condition.

The Bank may experience increases in non-performing assets in the future. Non-performing assets (which include OREO) adversely affect the Company’s financial condition and results of operations in various ways. The Bank does not record interest income on non-accrual loans or OREO, thereby adversely affecting its earnings. When the Bank takes collateral in foreclosures and similar proceedings, it is required to mark the related asset to the then fair value of the collateral, less estimated cost to sell, which may result in a charge-off of the value of the asset and lead the Bank to increase the provision for loan losses. An increase in the level of non-performing assets also increases the Bank’s risk profile and may impact the capital levels its regulators believe are appropriate in light of such risks. Further decreases in the value of these assets, or the underlying collateral, or in these borrowers’ performance or financial condition, whether or not due to economic and market conditions beyond the Bank’s control, could adversely affect the Company’s business, results of operations and financial condition, perhaps materially. In addition to the carrying costs to maintain OREO, the resolution of non-performing assets increases the Bank’s loan administration costs generally, and requires significant commitments of time from management and the Company’s directors, which reduces the time they have to focus on profitably growing the Company’s business.

A decline in the fair value of the Bank’s investment portfolio could adversely affect earnings.

The fair value of the Bank’s investment securities could decline as a result of factors including changes in market interest rates, credit quality and credit ratings, lack of market liquidity and other economic conditions. An investment security is impaired if the fair value of the security is less than the carrying value. When a security is impaired, the Bank determines whether the impairment is temporary or other-than-temporary. If an impairment is determined to be other-than-temporary, an impairment loss is recognized by reducing the amortized cost only for the credit loss associated with the other-than-temporary loss with a corresponding charge to earnings for a like amount. Any such impairment charge would have an adverse effect, which could be material, on the Company’s results of operations and financial condition, including its capital.

The size of the investment portfolio has stabilized over the prior two years and represents 36 percent of total assets at December 31, 2015 and 35 percent of total assets at December 31, 2014. While the Bank believes that the terms of such investments have been kept relatively short, the Bank is subject to elevated interest rate risk exposure if rates were to increase sharply. Further, the change in the mix of the Bank’s assets to more investment securities presents a different type of asset quality risk than the loan portfolio. In addition, in connection with the ongoing monitoring of its investment portfolio, the Bank reclassified obligations of state and local government securities with a fair value of approximately $485 million, inclusive of a net unrealized gain of $4.6 million, from available-for-sale (“AFS”) classification to held-to-maturity (“HTM”) classification. The reclassification occurred on January 1, 2014 and changed the allocation of the Bank’s entire investment portfolio from 100 percent AFS to approximately 85 percent AFS and 15 percent HTM. At December 31, 2015, the investment portfolio consisted of 79 percent AFS and 21 percent HTM designated investment securities. While the Company believes a relatively conservative management approach has been applied to the investment portfolio, there is always potential loss exposure under changing economic conditions.

Fluctuating interest rates can adversely affect profitability.

The Bank’s profitability is dependent to a large extent upon net interest income, which is the difference (or “spread”) between the interest earned on loans, investment securities and other interest earning assets and interest paid on deposits, borrowings, and other interest bearing liabilities. Because of the differences in maturities and repricing characteristics of interest earning assets and interest bearing liabilities, changes in interest rates do not produce equivalent changes in interest income earned on interest earning assets and interest paid on interest bearing liabilities. Accordingly, fluctuations in interest rates could adversely affect the Bank’s interest rate spread, and, in turn, profitability. The Bank seeks to manage its interest rate risk within well established policies and guidelines. Generally, the Bank seeks an asset and liability structure that insulates net interest income from large deviations attributable to changes in market rates. However, the Bank’s structures and practices to manage interest rate risk may not be effective in a highly volatile rate environment. Recently, the Federal Reserve, for the first time since the last recession, increased the federal funds target range by 0.25 percent to 0.25 to 0.50 percent and has indicated further increases could continue depending on economic conditions.

Interest rate swaps expose the Bank to certain risks, and may not be effective in mitigating exposure to changes in interest rates.

The Bank has entered into interest rate swap agreements in order to manage a portion of the interest rate volatility risk. The Bank anticipates that it may enter into additional interest rate swaps. These swap agreements involve other risks, such as the risk that the counterparty may fail to honor its obligations under these arrangements, leaving the Bank vulnerable to interest rate movements. The Bank’s current interest rate swap agreements include bilateral collateral agreements whereby the net fair value position is collateralized by the party in a net liability position. The bilateral collateral agreements reduce the Bank’s counterparty risk exposure. There can be no assurance that these arrangements will be effective in reducing the Bank’s exposure to changes in interest rates.

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If goodwill recorded in connection with acquisitions becomes additionally impaired, it could have an adverse impact on earnings and capital.

Accounting standards require the Company to account for acquisitions using the acquisition method of accounting. Under acquisition accounting, if the purchase price of an acquired company exceeds the fair value of its net assets, the excess is carried on the acquirer’s balance sheet as goodwill. In accordance with accounting principles generally accepted in the United States of America (“GAAP”), goodwill is not amortized but rather is evaluated for impairment on an annual basis or more frequently if events or circumstances indicate that a potential impairment exists. The Company's goodwill was not considered impaired as of December 31, 2015 and 2014; however, there can be no assurance that future evaluations of goodwill will not result in findings of impairment and write-downs, which could be material. While a non-cash item, impairment of goodwill could have a material adverse effect on the Company’s business, financial condition and results of operations. Furthermore, impairment of goodwill could subject the Company to regulatory limitations, including the ability to pay dividends on its common stock.

Growth through future acquisitions could, in some circumstances, adversely affect profitability or other performance measures.

During 2015 and in prior years, the Company has been active in acquisitions and may in the future engage in selected acquisitions of additional financial institutions. There are risks associated with any such acquisitions that could adversely affect profitability and other performance measures. These risks include, among other things, incorrectly assessing the asset quality of a financial institution being acquired, discovering compliance or regulatory issues after the acquisition, encountering greater than anticipated cost and use of management time associated with integrating acquired businesses into the Company’s operations, and being unable to profitably deploy funds acquired in an acquisition. The Company may not be able to continue to grow through acquisitions, and if it does, there is a risk of negative impacts of such acquisitions on the Company’s operating results and financial condition.

The Company anticipates that it might issue capital stock in connection with future acquisitions. Acquisitions and related issuances of stock may have a dilutive effect on earnings per share and the percentage ownership of current shareholders.

The Company’s business is heavily dependent on the services of the senior management team and proposed changes could have an impact on the Company.

The Company believes its success to date has been substantially dependent on the members of the executive management team, in particular Mick Blodnick, the Company’s CEO. The unexpected loss of any of these persons could have an adverse effect on the Company’s business and future growth prospects. Fortunately, the Company has a decentralized management style with separate Presidents for each of its bank divisions. Notwithstanding this, Mr. Blodnick has been instrumental in the Company’s success. As previously announced, Mr. Blodnick will retire as CEO at the end of 2016 but plans to remain on the Board. The Company, following a national search, hired Randall Chesler to be Mr. Blodnick’s successor. Mr. Chesler has served as President of the Bank since August 1, 2015, a position he will continue to hold until January 1, 2017, at which time he will assume the additional roles of President and CEO of the Company and CEO of the Bank. The objective of this 17-month transition period is to facilitate a smooth succession of management at the President/CEO level.

Competition in the Bank’s market areas may limit future success.

Commercial banking is a highly competitive business and a consolidating industry. The Bank competes with other commercial banks, savings and loans, credit unions, finance, insurance and other non-depository companies operating in its market areas. The Bank is subject to substantial competition for loans and deposits from other financial institutions. Some of its competitors are not subject to the same degree of regulation and restriction as the Bank. Some of the Bank’s competitors have greater financial resources than the Bank. If the Bank is unable to effectively compete in its market areas, the Bank’s business, results of operations and prospects could be adversely affected.

A failure in or breach of the Bank’s operational or security systems, or those of the Bank’s third party service providers, including as a result of cyber attacks, could disrupt business, result in the disclosure or misuse of confidential or proprietary information, damage the Company’s reputation, increase costs and cause losses.

The Bank’s operations rely heavily on the secure processing, storage and transmission of confidential and other information on its computer systems and networks. Any failure, interruption or breach in security or operational integrity of these systems could result in failures or disruptions in the Bank’s online banking system, customer relationship management, general ledger, deposit and loan servicing and other systems. The security and integrity of the Bank’s systems could be threatened by a variety of interruptions or information security breaches, including those caused by computer hacking, cyber attacks, electronic fraudulent activity or attempted theft of financial assets. The Bank cannot assure that any such failures, interruption or security breaches will not occur, or if they do occur, that they will be adequately addressed. While the Bank has certain protective policies and procedures in place, the nature and sophistication of the threats continue to evolve. The Bank may be required to expend significant additional resources in the future to modify and enhance its protective measures.

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Additionally, the Bank faces the risk of operational disruption, failure, termination or capacity constraints of any of the third parties that facilitate its business activities, including exchanges, clearing agents, clearing houses or other financial intermediaries. Such parties could also be the source of an attack on, or breach of, the Bank’s operational systems.

Any failures, interruptions or security breaches in the Bank’s information systems could damage its reputation, result in a loss of customer business, result in a violation of privacy or other laws, or expose the Company to civil litigation, regulatory fines or losses not covered by insurance.

The Company and the Bank operate in a highly regulated environment and changes or increases in, or supervisory enforcement of, banking or other laws and regulations or governmental fiscal or monetary policies could adversely affect the Company.

The Company and the Bank are subject to extensive regulation, supervision and examination by federal and state banking regulators. In addition, as a publicly-traded company, the Company is subject to regulation by the SEC. Any change in applicable regulations or federal, state or local legislation or in policies or interpretations or regulatory approaches to compliance and enforcement, income tax laws and accounting principles could have a substantial impact on the Company and its operations. Changes in laws and regulations may also increase expenses by imposing additional fees or taxes or restrictions on operations. Additional legislation and regulations that could significantly affect powers, authority and operations may be enacted or adopted in the future, which could have a material adverse effect on the Company’s financial condition and results of operations. Failure to appropriately comply with any such laws, regulations or principles could result in sanctions by regulatory agencies or damage to the Company’s reputation, all of which could adversely affect the Company’s business, financial condition or results of operations.

Regulators have significant discretion and authority to prevent or remedy unsafe or unsound practices or violations of laws or regulations by financial institutions and bank holding companies in the performance of their supervisory and enforcement duties. Existing and proposed federal and state laws and regulations restrict, limit and govern all aspects of the Company’s activities and may affect the ability to expand its business over time, may result in an increase in the Company’s compliance costs, and may affect its ability to attract and retain qualified executive officers and employees. Recently, these powers have been utilized more frequently due to the challenging national, regional and local economic conditions. The exercise of regulatory authority may have a negative impact on the Company’s financial condition and results of operations, including limiting the types of financial services and products the Company may offer or increasing the ability of non-banks to offer competing financial services and products. Additionally, the Company’s business is affected significantly by the fiscal and monetary policies of the federal government and its agencies, including the Federal Reserve.

The Company cannot accurately predict the full effects of recent legislation or the various other governmental, regulatory, monetary and fiscal initiatives which have been and may be enacted on the financial markets and on the Company. The terms and costs of these activities, or the failure of these actions to help stabilize the financial markets, asset prices, market liquidity and a continuation or worsening of current financial market and economic conditions could materially and adversely affect the Company’s business, financial condition, results of operations, and the trading price of the Company’s common stock.

The Company has various anti-takeover measures that could impede a takeover.

The Company’s articles of incorporation include certain provisions that could make more difficult the acquisition of the Company by means of a tender offer, a proxy contest, merger or otherwise. These provisions include a requirement that any “Business Combination” (as defined in the articles of incorporation) be approved by at least 80 percent of the voting power of the then outstanding shares, unless it is either approved by the Company’s Board or certain price and procedural requirements are satisfied. In addition, the authorization of preferred stock, which is intended primarily as a financing tool and not as a defensive measure against takeovers, may potentially be used by management to make more difficult uninvited attempts to acquire control of the Company. These provisions may have the effect of lengthening the time required to acquire control of the Company through a tender offer, proxy contest or otherwise, and may deter any potentially unfriendly offers or other efforts to obtain control of the Company. This could deprive the Company’s shareholders of opportunities to realize a premium for their common stock in the Company, even in circumstances where such action is favored by a majority of the Company’s shareholders.

The impact of Basel III is uncertain.

Basel III sets forth more robust global regulatory standards on capital adequacy, qualifying capital instruments, leverage ratios, market liquidity risk, and stress testing, which may be stricter than standards currently in place. The phase-in period for Basel III begins January 1, 2015 and ends on January 1, 2019. The implementation of these new standards could have an adverse impact on the Company’s financial position and future earnings due to, among other things, the increased Tier 1 capital ratio requirements that will be implemented. Additional information regarding Basel III is set forth under the heading “Supervision and Regulation” in “Item 1. Business.”

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Item 1B. Unresolved Staff Comments

None

Item 2. Properties

The following schedule provides information on the Company’s 144 properties as of December 31, 2015:

(Dollars in thousands)	Properties Leased	Properties Owned	Net Book Value
Montana	6	53	$	80,748
Idaho	7	21	25,783
Wyoming	2	15	17,229
Colorado	2	21	16,971
Utah	1	3	2,279
Washington	3	10	5,848
	21	123	$	148,858

The Company believes that all of its facilities are well maintained, generally adequate and suitable for the current operations of its business, as well as fully utilized. In the normal course of business, new locations and facility upgrades occur as needed.

For additional information regarding the Company’s premises and equipment and lease obligations, see Note 4 to the Consolidated Financial Statements in “Item 8. Financial Statements and Supplementary Data.”

Item 3. Legal Proceedings

The Company is involved in various claims, legal actions and complaints which arise in the ordinary course of business. In the Company’s opinion, all such matters are adequately covered by insurance, are without merit or are of such kind, or involve such amounts, that unfavorable disposition would not have a material adverse effect on the financial condition or results of operations of the Company.

Item 4. Mine Safety Disclosures

Not Applicable

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PART II

Item 5. Market for Registrant’s Common Equity, Related Stockholder Matters

and Issuer Purchases of Equity Securities

The Company’s stock trades on the NASDAQ Global Select Market under the symbol: GBCI. As of December 31, 2015, there were approximately 1,667 shareholders of record for the Company’s common stock. The market range of high and low closing prices for the Company’s common stock for the periods indicated are shown below:

	2015			2014
	High		Low	High	Low
First quarter	$	27.47	22.27	30.27	25.35
Second quarter	30.08		24.76	29.55	24.88
Third quarter	29.88		24.33	28.93	25.86
Fourth quarter	29.69		25.74	29.57	24.74

The following table summarizes the Company’s dividends declared during the periods indicated:

	Years ended
	December 31, 2015		December 31, 2014
First quarter	$	0.18	0.16
Second quarter	0.19		0.17
Third quarter	0.19		0.17
Fourth quarter	0.19		0.18
Special	0.30		0.30
Total	$	1.05	0.98

Future cash dividends will depend on a variety of factors, including net income, capital, asset quality, general economic conditions and regulatory considerations. Information regarding the regulation considerations is set forth under the heading “Supervision and Regulation” in “Item 1. Business.”

Unregistered Securities

Effective March 3, 2015, the Company issued 443,644 shares of common stock in connection with its acquisition of CB. Together with $12.2 million in cash, the Company shares were issued upon the closing of the merger to shareholders of CB, in exchange for all of the issued and outstanding shares of CB. The Company determined that all CB shareholders were accredited investors as defined in Rule 501(a) of Regulation D promulgated under the Securities Act, the offering did not involve any form of general solicitation or general advertising and the offering was otherwise conducted in accordance with the requirements of Rule 501(a) of Regulation D and Rule 506 thereunder.

Issuer Stock Purchases

The Company made no stock repurchases during 2015.

18

Stock Performance Graphs

The following graphs compare the yearly cumulative total return of the Company’s common stock over both a five-year and ten-year measurement period with the yearly cumulative total return on the stocks included in 1) the Russell 2000 Index; and 2) the SNL Bank Index comprised of banks and bank holding companies with total assets between $5 billion and $10 billion. Each of the cumulative total returns is computed assuming the reinvestment of dividends at the frequency with which dividends were paid during the applicable years.

19

Item 6. Selected Financial Data

The following financial data of the Company is derived from the Company’s historical audited financial statements and related notes. The information set forth below should be read in conjunction with “Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations” and “Item 8. Financial Statements and Supplementary Data” contained elsewhere in this Annual Report on Form 10-K.

																Compounded Annual Growth Rate
	December 31,															1-Year 2015/2014		5-Year 2015/2011
(Dollars in thousands, except per share data)	2015			2014			2013			2012			2011
Selected Statements of Financial Condition Information
Total assets	$	9,089,232		$	8,306,507		$	7,884,350		$	7,747,440		$	7,187,906		9.4	%	6.1	%
Investment securities	3,312,832			2,908,425			3,222,829			3,683,005			3,126,743			13.9	%	6.7	%
Loans receivable, net	4,948,984			4,358,342			3,932,487			3,266,571			3,328,619			13.6	%	6.5	%
Allowance for loan and lease losses	(129,697		)	(129,753		)	(130,351		)	(130,854		)	(137,516		)	—	%	(1.1	)%
Goodwill and intangibles	155,193			140,606			139,218			112,274			114,384			10.4	%	(0.2	)%
Deposits	6,945,008			6,345,212			5,579,967			5,364,461			4,821,213			9.5	%	9.0	%
Federal Home Loan Bank advances	394,131			296,944			840,182			997,013			1,069,046			32.7	%	(16.4	)%
Securities sold under agreements to repurchase and other borrowed funds	430,016			404,418			321,781			299,540			268,638			6.3	%	9.8	%
Stockholders’ equity	1,076,650			1,028,047			963,250			900,949			850,227			4.7	%	5.1	%
Equity per share	14.15			13.70			12.95			12.52			11.82			3.3	%	3.9	%
Equity as a percentage of total assets	11.85		%	12.38		%	12.22		%	11.63		%	11.83		%	(4.3	)%	(0.9	)%

											Compounded Annual Growth Rate
	Years ended December 31,										1-Year 2015/2014		5-Year 2015/2011
(Dollars in thousands, except per share data)	2015		2014		2013		2012		2011
Summary Statements of Operations
Interest income	$	319,681	$	299,919	$	263,576	$	253,757	$	280,109	6.6	%	2.1	%
Interest expense	29,275		26,966		28,758		35,714		44,494		8.6	%	(11.4	)%
Net interest income	290,406		272,953		234,818		218,043		235,615		6.4	%	4.3	%
Provision for loan losses	2,284		1,912		6,887		21,525		64,500		19.5	%	(51.5	)%
Non-interest income	98,761		90,302		93,047		91,496		78,199		9.4	%	2.4	%
Non-interest expense 1	236,757		212,679		195,317		193,421		191,965		11.3	%	4.7	%
Income before income taxes 1	150,126		148,664		125,661		94,593		57,349		1.0	%	24.8	%
Income tax expense 1	33,999		35,909		30,017		19,077		7,265		(5.3	)%	35.9	%
Net income 1	$	116,127	$	112,755	$	95,644	$	75,516	$	50,084	3.0	%	22.4	%
Basic earnings per share 1	$	1.54	$	1.51	$	1.31	$	1.05	$	0.70	2.0	%	20.3	%
Diluted earnings per share 1	$	1.54	$	1.51	$	1.31	$	1.05	$	0.70	2.0	%	20.3	%
Dividends declared per share 2	$	1.05	$	0.98	$	0.60	$	0.53	$	0.52	7.1	%	15.1	%

20

	At or for the Years ended December 31,
(Dollars in thousands)	2015			2014		2013		2012		2011
Selected Ratios and Other Data
Return on average assets 1	1.36		%	1.42	%	1.23	%	1.01	%	0.72	%
Return on average equity 1	10.84		%	11.11	%	10.22	%	8.54	%	5.78	%
Dividend payout ratio 1	68.18		%	64.90	%	45.80	%	50.48	%	74.29	%
Average equity to average asset ratio	12.52		%	12.81	%	11.99	%	11.84	%	12.39	%
Total capital (to risk-weighted assets)	17.17		%	18.93	%	18.97	%	20.09	%	20.27	%
Tier 1 capital (to risk-weighted assets)	15.91		%	17.67	%	17.70	%	18.82	%	18.99	%
Common Equity Tier 1 (to risk-weighted assets)	14.06		%	N/A		N/A		N/A		N/A
Tier 1 capital (to average assets)	12.01		%	12.45	%	12.11	%	11.31	%	11.81	%
Net interest margin on average earning assets (tax-equivalent)	4.00		%	3.98	%	3.48	%	3.37	%	3.89	%
Efficiency ratio 3	55.40		%	54.31	%	54.51	%	54.02	%	51.34	%
Allowance for loan and lease losses as a percent of loans	2.55		%	2.89	%	3.21	%	3.85	%	3.97	%
Allowance for loan and lease losses as a percent of nonperforming loans	244		%	209	%	158	%	133	%	102	%
Non-performing assets as a percentage of subsidiary assets	0.88		%	1.08	%	1.39	%	1.87	%	2.92	%
Non-performing assets	$	80,079		89,900		109,420		143,527		213,456
Loans originated and acquired	$	3,000,830		2,404,299		2,477,804		2,237,977		1,650,418
Number of full time equivalent employees	2,149			1,943		1,837		1,677		1,653
Number of locations	144			129		118		108		106

__________

¹ Excludes 2011 goodwill impairment charge of $32.6 million ($40.2 million pre-tax). For additional information on the goodwill impairment charge, see the “Non-GAAP Financial Measures” section below.

² Includes a special dividend declared of $0.30 per share for 2015 and 2014.

³ Non-interest expense before OREO expenses, core deposit intangibles amortization, goodwill impairment charges, and non-recurring expense items as a percentage of tax-equivalent net interest income and non-interest income, excluding gains or losses on sale of investments, OREO income, and non-recurring income items.

Non-GAAP Financial Measures

In addition to the results presented in accordance with GAAP, this Annual Report on Form 10-K contains certain non-GAAP financial measures. The Company believes that providing these non-GAAP financial measures provides investors with information useful in understanding the Company’s financial performance, performance trends, and financial position. While the Company uses these non-GAAP measures in its analysis of the Company’s performance, this information should not be considered an alternative to measurements required by GAAP. 

	Year ended December 31, 2011
	Goodwill Impairment Charge,
(Dollars in thousands, except per share data)	GAAP			Net of Tax		Non-GAAP
Non-interest expense	$	232,124		(40,159	)	191,965
Income before income taxes	$	17,190		40,159		57,349
Income tax (benefit) expense	$	(281	)	7,546		7,265
Net income	$	17,471		32,613		50,084
Basic earnings per share	$	0.24		0.46		0.70
Diluted earnings per share	$	0.24		0.46		0.70
Return on average assets	0.25		%	0.47	%	0.72	%
Return on average equity	2.04		%	3.74	%	5.78	%
Dividend payout ratio	216.67		%	(142.38	)%	74.29	%

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Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations

The following discussion is intended to provide a more comprehensive review of the Company’s operating results and financial condition than can be obtained from reading the Consolidated Financial Statements alone. The discussion should be read in conjunction with the Consolidated Financial Statements and the notes thereto included in “Item 8. Financial Statements and Supplementary Data.”

FORWARD-LOOKING STATEMENTS

This Annual Report on Form 10-K may contain forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. These forward-looking statements include, but are not limited to, statements about management’s plans, objectives, expectations and intentions that are not historical facts, and other statements identified by words such as “expects,” “anticipates,” “intends,” “plans,” “believes,” “should,” “projects,” “seeks,” “estimates” or words of similar meaning. These forward-looking statements are based on current beliefs and expectations of management and are inherently subject to significant business, economic and competitive uncertainties and contingencies, many of which are beyond the Company’s control. In addition, these forward-looking statements are subject to assumptions with respect to future business strategies and decisions that are subject to change. The following factors, among others, could cause actual results to differ materially from the anticipated results or other expectations in the forward-looking statements, including those set forth in this Annual Report on Form 10-K, or the documents incorporated by reference:

• the risks associated with lending and potential adverse changes of the credit quality of loans in the Company’s portfolio;

• changes in trade, monetary and fiscal policies and laws, including interest rate policies of the Board of Governors of the Federal Reserve System or the Federal Reserve Board, which could adversely affect the Company’s net interest income and profitability;

• legislative or regulatory changes, including increased banking and consumer protection regulation that adversely affect the Company’s business;

• ability to complete pending or prospective future acquisitions, limit certain sources of revenue, or increase cost of operations;

• costs or difficulties related to the completion and integration of acquisitions;

• the goodwill the Company has recorded in connection with acquisitions could become impaired, which may have an adverse impact on earnings and capital;

• reduced demand for banking products and services;

• the risks presented by continued public stock market volatility, which could adversely affect the market price of the Company’s common stock and the ability to raise additional capital or grow the Company through acquisitions;

• consolidation in the financial services industry in the Company’s markets resulting in the creation of larger financial institutions who may have greater resources could change the competitive landscape;

• dependence on the CEO, the senior management team and the Presidents of Bank divisions;

• potential interruption or breach in security of the Company’s systems and technological changes which could expose us to new risks, fraud or system failures; and

• the Company’s success in managing risks involved in the foregoing.

Additional factors that could cause actual results to differ materially from those expressed in the forward-looking statements are discussed in “Item 1A. Risk Factors.” Please take into account that forward-looking statements speak only as of the date of this Annual Report on Form 10-K (or documents incorporated by reference, if applicable). The Company does not undertake any obligation to publicly correct or update any forward-looking statement if it later becomes aware that actual results are likely to differ materially from those expressed in such forward-looking statement.

22

MANAGEMENT’S DISCUSSION AND ANALYSIS

OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

YEAR ENDED DECEMBER 31, 2015 COMPARED TO DECEMBER 31, 2014

Highlights and Overview

During the first quarter of 2015, the Company completed the acquisition of Montana Community Banks, Inc. and its subsidiary, Community Bank, Inc., a community bank based in Ronan, Montana. CB provides banking services to individuals and businesses in western Montana, with eight banking offices located in Missoula, Polson, Ronan, and Pablo. The branches of CB became a part of the Glacier Bank and First Security Bank of Missoula bank divisions. During the second quarter of 2015, the Company also successfully completed the data processing system conversion for this acquisition.

During the fourth quarter of 2015, the Company completed the acquisition of Cañon Bank Corporation and its subsidiary Cañon National Bank, a community bank based in Cañon City, Colorado. Cañon provides banking services to individuals and businesses in south central Colorado, with nine banking offices located in Colorado Springs, Pueblo, Pueblo West, Cañon City, Colorado City, and Florence, Colorado. The branches of Cañon became a part of the Bank of the San Juans bank division.

During the second quarter of 2015, the Company announced that Randall Chesler would become President of Glacier Bank effective August 1, 2015 and will succeed Mick Blodnick as President and Chief Executive Officer of the Company effective January 1, 2017. Mr. Chesler bringsmore than 30 years of experience in the financial services industry, most recently as President of CIT Bank, the Salt Lake City-based banking subsidiary of CIT Group. Mr. Blodnick will continue to serve as President and CEO of the Company and CEO of the Bank until his retirement at the end of 2016, although he anticipates continuing as a member of the Board. Mr. Blodnick worked closely with Mr. Chesler during 2015 and will continue to do so in 2016 to ensure a smooth leadership transition.

During the current year, the Company started a two year project to consolidate the Company’s thirteen core bank division database systems into one core database system. The primary reasons for the project are to increase efficiencies and prepare the Company for the future, including reaching $10 billion in asset size and complying with the Dodd-Frank Act stress tests (“DFAST”). The Bank divisions will continue to operate as separate divisions with their own management teams, which has been a cornerstone of the Company’s success. The current year encompassed the planning phase of the consolidation project which has been very successful and the Company plans to implement and complete the project in various phases during 2016.

The Company experienced another strong year for loan and deposit growth, while keeping borrowings at a minimum and selectively purchasing investment securities. For the third consecutive year, the Company experienced organic loan growth. Excluding acquisitions, loans receivable increased $346 million, or 8 percent, during the current year, with the primary increase in commercial loans which increased $278 million from the prior year end. Excluding the acquisitions and wholesale deposits, the Company’s non-interest bearing deposits increased $155 million, or 10 percent, during the current year while interest bearing deposits increased $80 million, or 2 percent. Tangible stockholders’ equity increased $34 million, or $0.28 per share, as a result of earnings retention and Company stock issued in connection with the current year acquisitions, both of which offset the decrease in accumulated other comprehensive income and increases in goodwill and intangibles from acquisitions. The Company increased its quarterly dividend during 2015 from $0.18 per share to $0.19 per share and declared a special dividend of $0.30 per share for a record dividend of $1.05 per share for 2015 compared to $0.98 per share for 2014.

The Company continued to reduce its non-performing assets and ended the year at $80.1 million which was a decrease of $9.8 million or, 11 percent, from the prior year end. The stabilizing credit quality was reflected in the $2.3 million provision for loan losses during the current year compared to $1.9 million in the prior year. Loan portfolio growth, composition, average loan size, credit quality considerations, and other environmental factors will continue to determine the provision for loan losses.

The Company had record earnings of $116 million for 2015, which was an increase of $3.4 million, or 3 percent over the 2014 net income of $113 million. Diluted earnings per share for 2015 was $1.54, an increase of $0.03, or 2 percent, from the prior year diluted earnings per share of $1.51. The net income improvement for 2015 over 2014 was principally due to an increase in interest income from the commercial loan portfolio and an increase in non-interest income which outpaced the increase in non-interest expense.

Looking forward, the Company’s future performance will depend on many factors including economic conditions in the markets the Company serves, interest rate changes, increasing competition for deposits and loans, loan quality and growth, the impact and successful integration of acquisitions, and regulatory burden.

23

Acquisitions

On October 31, 2015, the Company completed the acquisition of Cañon, which resulted in goodwill of $9.8 million which was based on the estimated fair value of the assets acquired and liabilities assumed. On February 28, 2015, the Company completed the acquisition of CB, which resulted in goodwill of $1.1 million. On August 31, 2014, the Company completed the acquisition of FNBR, which resulted in a bargain purchase gain of $680 thousand. The Company’s results of operations and financial condition include the acquisitions of Cañon, CB and FNBR from the acquisition dates. For additional information regarding acquisitions, see Note 22 to the Consolidated Financial Statements in “Item 8. Financial Statements and Supplementary Data.”

The following table provides information on the fair value of selected classifications of assets and liabilities acquired:

	Cañon		CB	FNBR
(Dollars in thousands)	October 31, 2015		February 28, 2015	August 31, 2014
Total assets	$	270,121	175,774	349,167
Investment securities	68,486		42,350	157,018
Loans receivable	159,759		84,689	137,488
Non-interest bearing deposits	89,083		41,779	80,037
Interest bearing deposits	148,243		105,041	229,604
Federal Home Loan Bank advances and securities sold under agreements to repurchase	—		3,292	—

Financial Condition Analysis

Assets

The following table summarizes the Company’s assets as of the dates indicated: 

(Dollars in thousands)	December 31, 2015			December 31, 2014			$ Change			% Change
Cash and cash equivalents	$	193,253		$	442,409		$	(249,156	)	(56	)%
Investment securities, available-for-sale	2,610,760			2,387,428			223,332			9	%
Investment securities, held-to-maturity	702,072			520,997			181,075			35	%
Total investment securities	3,312,832			2,908,425			404,407			14	%
Loans receivable
Residential real estate	688,912			611,463			77,449			13	%
Commercial	3,733,517			3,263,448			470,069			14	%
Consumer and other	656,252			613,184			43,068			7	%
Loans receivable	5,078,681			4,488,095			590,586			13	%
Allowance for loan and lease losses	(129,697		)	(129,753		)	56			—	%
Loans receivable, net	4,948,984			4,358,342			590,642			14	%
Other assets	634,163			597,331			36,832			6	%
Total assets	$	9,089,232		$	8,306,507		$	782,725		9	%

Total investment securities of $3.313 billion at December 31, 2015 increased $404 million, or 14 percent, from December 31, 2014. The increase in the investment portfolio from the prior year fourth quarter was the result of continuing to selectively purchase investment securities with the Company’s excess liquidity resulting from the sustained increase in deposits. Investment securities represented 36 percent of total assets at December 31, 2015 compared to 35 percent at December 31, 2014.

24

Excluding the CB and Cañon acquisitions, the Company continued to experience growth in the loan portfolio which increased $346 million, or 8 percent, since December 31, 2014 with $278 million of the increase coming from growth in commercial loans. Excluding the acquisitions, the residential real estate loans increased $35.9 million, or 6 percent, during the current year and consumer and other loans increased $32.1 million, or 5 percent, during the current year. Similar to 2014, the Company benefited from the slowly improving but fragile economy and loan growth opportunities in many of its market areas, although the competition for such loans remained elevated. The Company continues to originate the loans under conservative underwriting standards and monitors the loan portfolio to maintain the risk profile within the Company’s policy limits.

Liabilities

The following table summarizes the liability balances as of the dates indicated, and the amount of change from December 31, 2014: 

(Dollars in thousands)	December 31, 2015		December 31, 2014		$ Change			% Change
Non-interest bearing deposits	$	1,918,310	$	1,632,403	$	285,907		18	%
Interest bearing deposits	5,026,698		4,712,809		313,889			7	%
Securities sold under agreements to repurchase	423,414		397,107		26,307			7	%
Federal Home Loan Bank advances	394,131		296,944		97,187			33	%
Other borrowed funds	6,602		7,311		(709		)	(10	)%
Subordinated debentures	125,848		125,705		143			—	%
Other liabilities	117,579		106,181		11,398			11	%
Total liabilities	$	8,012,582	$	7,278,460	$	734,122		10	%

Excluding the CB and Cañon acquisitions, non-interest bearing deposits of $1.918 billion increased $155 million, or 10 percent, from December 31, 2014. Interest bearing deposits of $5.027 billion at December 31, 2015 included $230 million of wholesale deposits (i.e., brokered deposits classified as NOW, money market deposits and certificate accounts). Excluding the decrease of $19.5 million in wholesale deposits and the CB and Cañon acquisitions, core interest bearing deposits at December 31, 2015 increased $80 million, or 2 percent, from December 31, 2014. In addition to increasing deposit balances, the Company was successful in originating and retaining new core deposit accounts during 2015.

Federal Home Loan Bank (“FHLB”) advances of $394 million at December 31, 2015 increased $97.2 million, or 33 percent, since December 31, 2014 due to deposit fluctuations and the Company taking advantage of attractive term borrowings that were available from FHLB of Seattle prior to its merger with FHLB of Des Moines during the second quarter of 2015. Overall, the Company has maintained low levels of FHLB advances in the past few years given the exceptional core deposit growth it has experienced.

Stockholders’ Equity

The following table summarizes the stockholders’ equity balances as of the dates indicated and the amount of change from December 31, 2014: 

(Dollars in thousands, except per share data)	December 31, 2015			December 31, 2014			$ Change			% Change
Common equity	$	1,074,661		$	1,010,303		$	64,358		6	%
Accumulated other comprehensive income	1,989			17,744			(15,755		)	(89	)%
Total stockholders’ equity	1,076,650			1,028,047			48,603			5	%
Goodwill and core deposit intangible, net	(155,193		)	(140,606		)	(14,587		)	10	%
Tangible stockholders’ equity	$	921,457		$	887,441		$	34,016		4	%
Stockholders’ equity to total assets	11.85		%	12.38		%				(4	)%
Tangible stockholders’ equity to total tangible assets	10.31		%	10.87		%				(5	)%
Book value per common share	$	14.15		$	13.70		$	0.45		3	%
Tangible book value per common share	$	12.11		$	11.83		$	0.28		2	%
Market price per share at end of period	$	26.53		$	27.77		$	(1.24	)	(4	)%

25

Tangible stockholders’ equity increased $34.0 million, or 4 percent, from a year ago, the result of earnings retention and Company stock issued in connection with the CB and Cañon acquisitions, both of which offset the decrease in accumulated other comprehensive income and increases in goodwill and intangibles from acquisitions. At December 31, 2015, the tangible book value per common share was $12.11, an increase of $0.28 per share from the prior year.

Results of Operations

Performance Summary

	Years ended
(Dollars in thousands, except per share data)	December 31, 2015			December 31, 2014
Net income	$	116,127		112,755
Diluted earnings per share	$	1.54		1.51
Return on average assets (annualized)	1.36		%	1.42	%
Return on average equity (annualized)	10.84		%	11.11	%

Net income for the twelve months ended December 31, 2015 was a record $116.1 million, an increase of $3.4 million, or 3 percent, from the $112.8 million of net income for the same period in the prior year. Diluted earnings per share for the twelve months ended December 31, 2015 was $1.54 per share, an increase of $0.03, or 2 percent, from the diluted earnings per share for the prior year.

Income Summary

The following table summarizes revenue for the periods indicated, including the amount and percentage changes from December 31, 2014: 

	Years ended						$ Change			% Change
(Dollars in thousands)	December 31, 2015			December 31, 2014
Net interest income
Interest income	$	319,681		$	299,919		$	19,762		7	%
Interest expense	29,275			26,966			2,309			9	%
Total net interest income	290,406			272,953			17,453			6	%
Non-interest income
Service charges, loan fees, and other fees	61,597			58,785			2,812			5	%
Gain on sale of loans	26,389			19,797			6,592			33	%
Loss on sale of investments	19			(188		)	207			(110	)%
Other income	10,756			11,908			(1,152		)	(10	)%
Total non-interest income	98,761			90,302			8,459			9	%
	$	389,167		$	363,255		$	25,912		7	%
Net interest margin (tax-equivalent)	4.00		%	3.98		%

Net Interest Income

Interest income for 2015 increased $19.8 million, or 7 percent, from the prior year and was principally due to an increase in interest income from commercial loans. Current year interest income of $165 million from commercial loans increased $19.3 million, or 13 percent, from the prior year and was primarily the result of an increased volume of commercial loans. Current year interest income of $91.1 million on investment securities decreased $2.0 million, or 2 percent, over the same period last year. On a tax-equivalent basis, the current year interest income of $118.8 million on investment securities increased $2.8 million, or 2 percent, over the prior year.

26

Interest expense for 2015 increased $2.3 million, or 9 percent, from the prior year and was primarily due to the interest expense associated with the interest rate swaps undertaken to reduce the Company’s sensitivity to rising interest rates. At year end, the Company had interest rate swaps with total notional amounts of $260 million, such interest rate swaps including two separate contracts with delayed start accrual periods that began in October 2014 and November 2015. The Company designated wholesale deposits as the cash flow hedge for its interest rate swaps and the related interest expense is included in wholesale deposits. Excluding the impact of the interest rate swaps, interest expense for 2015 decreased by $1.7 million, or 7 percent, from the prior year. The total funding cost (including non-interest bearing deposits) for the current year was 40 basis points compared to 39 basis points for the prior year. 

The net interest margin as a percentage of earning assets, on a tax-equivalent basis, for the current year was 4.00 percent, an increase of 2 basis points from the prior year net interest margin of 3.98 percent. The 2 basis points increase was attributable to a combination of items including a shift in earning assets to the higher yielding loan portfolio and an increased yield on the investment securities portfolio. In addition, the lower yield on core deposits offset the increased interest expense from the interest rate swaps. Excluding the effects of the interest rate swaps, the current year cost of funds was 33 basis points compared to 38 basis points in the prior year.

Non-interest Income

Non-interest income of $98.8 million for the current year increased $8.5 million, or 9 percent, over the same period last year. Service charges and other fees of $61.6 million for the current year increased $2.8 million, or 5 percent, from last year and was driven by the increased number of deposit accounts and higher usage of deposit services by customers. The gain of $26.4 million on the sale of residential loans for the current year increased $6.6 million, or 33 percent, from the prior year which was attributable to an increase in mortgage refinancing and purchase activity. Other income of $10.8 million for the current year decreased $1.2 million, or 10 percent, over the prior year due to a decrease in gain on sale of OREO and insurance proceeds recognized in the prior year fourth quarter from a bank-owned life insurance policy. Included in other income was operating revenue of $123 thousand from OREO and gains of $986 thousand from the sales of OREO, which totaled $1.1 million for 2015, compared to $2.3 million for the same period in the prior year.

Non-interest Expense

The following table summarizes non-interest expense for the periods indicated, including the amount and percentage changes from December 31, 2014: 

	Years ended				$ Change			% Change
(Dollars in thousands)	December 31, 2015		December 31, 2014
Compensation and employee benefits	$	134,409	$	118,571	$	15,838		13	%
Occupancy and equipment	31,149		27,498		3,651			13	%
Advertising and promotions	8,661		7,912		749			9	%
Data processing	5,833		6,607		(774		)	(12	)%
Other real estate owned	3,693		2,568		1,125			44	%
Regulatory assessments and insurance	5,283		5,064		219			4	%
Core deposit intangible amortization	2,964		2,811		153			5	%
Other expenses	44,765		41,648		3,117			7	%
Total non-interest expense	$	236,757	$	212,679	$	24,078		11	%

Compensation and employee benefits expense for the current year increased $15.8 million, or 13 percent, from last year due to the increased number of employees, primarily from the acquired banks, additional benefit costs and annual salary increases. Occupancy and equipment expense increased $3.7 million, or 13 percent, as a result of increased costs associated with acquisitions and equipment expense related to additional information technology infrastructure. Outsourced data processing expense decreased $774 thousand, or 12 percent, from the prior year as a result of a decrease in conversion-related expenses and outsourced data processing expense from an acquired bank. OREO expense of $3.7 million in the current year increased $1.1 million, or 44 percent, from the prior year. OREO expenses continue to fluctuate based on the level of activity in various quarters. OREO expense for 2015 included $1.8 million of operating expenses, $1.6 million of fair value write-downs, and $349 thousand of loss from the sales of OREO. OREO expense for 2014 included $1.4 million of operating expenses, $691 thousand of fair value write-downs, and $442 thousand of loss from the sales of OREO. Other expense of $44.8 million for the current year increased by $3.1 million, or 7 percent, from the prior year primarily due to increases in conversion- and acquisition-related expenses.

27

Efficiency Ratio

The efficiency ratio was 55.40 percent for 2015 compared to 54.31 percent for 2014. The increase in the efficiency ratio resulted primarily from compensation expense from increased acquired bank employees and salary increases outpacing the increase in net interest income primarily from commercial loans and non-interest income principally from the increase in gain on sale of loans.

Provision for Loan Losses

The following table summarizes the provision for loan losses, net charge-offs and other select ratios for the previous eight quarters:

(Dollars in thousands)	Provision for Loan Losses		Net Charge-Offs			ALLL as a Percent of Loans		Accruing Loans 30-89 Days Past Due as a Percent of Loans		Non-Performing Assets to Total Sub-sidiary Assets
Fourth quarter 2015	$	411	$	1,482		2.55	%	0.38	%	0.88	%
Third quarter 2015	826		577			2.68	%	0.37	%	0.97	%
Second quarter 2015	282		(381		)	2.71	%	0.59	%	0.98	%
First quarter 2015	765		662			2.77	%	0.71	%	1.07	%
Fourth quarter 2014	191		1,070			2.89	%	0.58	%	1.08	%
Third quarter 2014	360		364			2.93	%	0.39	%	1.21	%
Second quarter 2014	239		332			3.11	%	0.44	%	1.30	%
First quarter 2014	1,122		744			3.20	%	1.05	%	1.37	%

The provision for loan losses was $2.3 million for the current year, an increase of $372 thousand, or 19 percent, from the same period in the prior year. Net charged-off loans during 2015 were $2.3 million, a decrease of $170 thousand from 2014.

MANAGEMENT’S DISCUSSION AND ANALYSIS

OF THE RESULTS OF OPERATIONS

YEAR ENDED DECEMBER 31, 2014 COMPARED TO DECEMBER 31, 2013

Income Summary

The following table summarizes revenue for the periods indicated, including the amount and percentage changes from December 31, 2013: 

	Years ended						$ Change			% Change
(Dollars in thousands)	December 31, 2014			December 31, 2013
Net interest income
Interest income	$	299,919		$	263,576		$	36,343		14	%
Interest expense	26,966			28,758			(1,792		)	(6	)%
Total net interest income	272,953			234,818			38,135			16	%
Non-interest income
Service charges, loan fees, and other fees	58,785			54,460			4,325			8	%
Gain on sale of loans	19,797			28,517			(8,720		)	(31	)%
Loss on sale of investments	(188		)	(299		)	111			(37	)%
Other income	11,908			10,369			1,539			15	%
Total non-interest income	90,302			93,047			(2,745		)	(3	)%
	$	363,255		$	327,865		$	35,390		11	%
Net interest margin (tax-equivalent)	3.98		%	3.48		%

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Net Interest Income

Interest income for 2014 increased $36.3 million, or 14 percent, from the prior year and was principally due to the decrease in premium amortization on investment securities and increased income from commercial loans. Interest income on investment securities benefited from a reduction of $36.6 million in premium amortization during 2014 compared to the prior year. Interest income for 2014 on commercial loans increased $18.2 million, or 14 percent, from the prior year and was primarily the result of an increase in the volume of commercial loans.

Interest expense for 2014 decreased $1.8 million, or 6 percent, from the prior year and was primarily attributable to the decreases in interest rates on certificate of deposits and lower volume of borrowings, such benefit partially offset by the increased costs associated with an interest rate swap that began interest expense accruals in October 2014. The total funding cost (including non-interest bearing deposits) for 2014 was 39 basis points compared to 42 basis points for the prior year. 

The net interest margin as a percentage of earning assets, on a tax-equivalent basis, for 2014 was 3.98 percent, a 50 basis points increase from the net interest margin of 3.48 percent for 2013. The increase in the net interest margin was due to the increased yield on the investment portfolio combined with the shift in earning assets to the higher yielding loan portfolio. The premium amortization for 2014 accounted for a 40 basis points reduction in the net interest margin, compared to an 89 basis points reduction in the net interest margin for the same period last year.

Non-interest Income

Non-interest income of $90.3 million for 2014 decreased $2.7 million, or 3 percent, over the prior year. Service charges and other fees of $58.8 million for 2014 increased $4.3 million, or 8 percent, from the prior year and was primarily the result of an increase in the number of deposit accounts. Gain of $19.8 million on the sale of residential loans for 2014 decreased $8.7 million, or 31 percent, from 2013 as a consequence of the slowdown in refinance activity. Other income for 2014 of $11.9 million, increased $1.5 million, or 15 percent, from the prior year as a result of a current year bargain purchase gain, proceeds from a bank-owned life insurance policy, and other income which was partially offset by the decrease in OREO income. Included in other income was operating revenue of $204 thousand from OREO and gain of $2.1 million from the sale of OREO, a combined total of $2.3 million for 2014 compared to $3.5 million for the prior year.

Non-interest Expense

The following table summarizes non-interest expense for the periods indicated, including the amount and percentage changes from December 31, 2013:

	Years ended				$ Change			% Change
(Dollars in thousands)	December 31, 2014		December 31, 2013
Compensation and employee benefits	$	118,571	$	104,221	$	14,350		14	%
Occupancy and equipment	27,498		24,875		2,623			11	%
Advertising and promotions	7,912		6,913		999			14	%
Data processing	6,607		4,493		2,114			47	%
Other real estate owned	2,568		7,196		(4,628		)	(64	)%
Regulatory assessments and insurance	5,064		6,362		(1,298		)	(20	)%
Core deposit intangible amortization	2,811		2,401		410			17	%
Other expenses	41,648		38,856		2,792			7	%
Total non-interest expense	$	212,679	$	195,317	$	17,362		9	%

Compensation and employee benefits expense for 2014 increased $14.4 million, or 14 percent, from the prior year due to the increased number of employees from acquired banks, additional benefit costs and annual salary increases. Occupancy and equipment expense for 2014 increased $2.6 million, or 11 percent, over the prior year as a result of bank acquisitions and increases in equipment expense related to additional information and technology infrastructure. Advertising and promotions expense for 2014 increased $999 thousand from the prior year primarily due to the FNBR acquisition and recent marketing promotions at a number of the Bank divisions. Data processing expense for 2014 increased $2.1 million, or 47 percent, from the prior year as a result of the acquired banks’ outsourced data processing expense, conversion-related expenses and general increases in data processing expense. OREO expense of $2.6 million in 2014 decreased $4.6 million, or 64 percent, from the prior year. OREO expense for 2014 included $1.4 million of operating expenses, $691 thousand of fair value write-downs, and $442 thousand of loss on sale of OREO. Other expense for 2014 increased by $2.8 million, or 7 percent, from the prior year primarily from increases in employee expenses from acquired banks and increases in consulting and advisory services.

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Efficiency Ratio

The efficiency ratio was 54.31 percent for 2014 and 54.51 percent for 2013. The improvement in the efficiency ratio was the result of the increase in net interest income from the shift in earning assets from investment securities to the higher yielding loans and decreases in premium amortization on the investment portfolio. Such increases in net interest income outpaced the increase in non-interest expense from compensation expense and the decrease in non-interest income driven by the decrease in refinance activity.

Provision for Loan Losses

The provision for loan losses was $1.9 million for 2014, a decrease of $5.0 million, or 72 percent, from the prior year. Net charged-off loans during 2014 was $2.5 million, a decrease of $4.9 million from 2013.

ADDITIONAL MANAGEMENT’S DISCUSSION AND ANALYSIS

Investment Activity

Investment securities classified as available-for-sale are carried at estimated fair value and investment securities classified as held-to-maturity are carried at amortized cost. Unrealized gains or losses, net of tax, on available-for-sale securities are reflected as an adjustment to other comprehensive income. The Company’s investment securities are summarized below:

	December 31, 2015				December 31, 2014				December 31, 2013				December 31, 2012				December 31, 2011
(Dollars in thousands)	Carrying Amount		Percent		Carrying Amount		Percent		Carrying Amount		Percent		Carrying Amount		Percent		Carrying Amount		Percent
Available-for-sale
U.S. government and federal agency	$	47,451	1	%	$	44	—	%	$	—	—	%	$	202	—	%	$	208	—	%
U.S. government sponsored enterprises	93,167		3	%	21,945		1	%	10,628		—	%	17,480		—	%	31,155		1	%
State and local governments	885,019		27	%	997,969		34	%	1,385,078		43	%	1,214,518		33	%	1,064,655		34	%
Corporate bonds	384,163		12	%	314,854		11	%	442,501		14	%	288,795		8	%	62,237		2	%
Collateralized debt obligations	—		—	%	—		—	%	—		—	%	1,708		—	%	5,366		—	%
Residential mortgage-backed securities	1,200,960		36	%	1,052,616		36	%	1,384,622		43	%	2,160,302		59	%	1,963,122		63	%
Total available-for-sale	2,610,760		79	%	2,387,428		82	%	3,222,829		100	%	3,683,005		100	%	3,126,743		100	%
Held-to-maturity
State and local governments	702,072		21	%	520,997		18	%	—		—	%	—		—	%	—		—	%
Total held-to-maturity	702,072		21	%	520,997		18	%	—		—	%	—		—	%	—		—	%
Total investment securities	$	3,312,832	100	%	$	2,908,425	100	%	$	3,222,829	100	%	$	3,683,005	100	%	$	3,126,743	100	%

The Company’s investment portfolio is primarily comprised of state and local government securities and residential mortgage-backed securities. State and local government securities are largely exempt from federal income tax and the Company’s maximum federal statutory rate of 35 percent is used in calculating the tax-equivalent yields on the tax-exempt securities. Residential mortgage-backed securities are typically short, weighted-average life U.S. agency collateralized mortgage obligations that provide the Company with ongoing liquidity as scheduled and pre-paid principal is received on the securities.

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State and local government securities carry different risks that are not as prevalent in other security types. The Company evaluates the investment grade quality of its securities in accordance with regulatory guidance. Investment grade securities are those where the issuer has an adequate capacity to meet the financial commitments under the security for the projected life of the investment. An issuer has an adequate capacity to meet financial commitments if the risk of default by the obligor is low and the full and timely payment of principal and interest are expected. In assessing credit risk, the Company may use credit ratings from Nationally Recognized Statistical Rating Organizations (“NRSRO” entities such as Standard and Poor’s [“S&P”] and Moody’s) as support for the evaluation; however, they are not solely relied upon. There have been no significant differences in the Company’s internal evaluation of the creditworthiness of any issuer when compared with the ratings assigned by the NRSROs.

The following table stratifies the state and local government securities by the associated NRSRO ratings. The highest issued rating was used to categorize the securities in the table for those securities where the NRSRO ratings were not at the same level.

	December 31, 2015			December 31, 2014
(Dollars in thousands)	Amortized Cost		Fair Value	Amortized Cost	Fair Value
S&P: AAA / Moody’s: Aaa	$	366,961	374,470	363,840	374,870
S&P: AA+, AA, AA- / Moody’s: Aa1, Aa2, Aa3	936,947		971,717	868,990	908,334
S&P: A+, A, A- / Moody’s: A1, A2, A3	239,371		252,292	233,751	248,592
S&P: BBB+, BBB, BBB- / Moody’s: Baa1, Baa2, Baa3	2,858		3,017	—	—
Not rated by either entity	12,673		13,036	16,781	17,119
Below investment grade	—		—	—	—
Total	$	1,558,810	1,614,532	1,483,362	1,548,915

State and local government securities largely consist of both taxable and tax-exempt general obligation and revenue bonds. The following table stratifies the state and local government securities by the associated security type.

	December 31, 2015			December 31, 2014
(Dollars in thousands)	Amortized Cost		Fair Value	Amortized Cost	Fair Value
General obligation - unlimited	$	831,518	862,863	765,710	803,152
General obligation - limited	262,803		274,177	271,428	284,865
Revenue	423,171		434,610	391,902	405,104
Certificate of participation	28,245		29,634	35,610	36,823
Other	13,073		13,248	18,712	18,971
Total	$	1,558,810	1,614,532	1,483,362	1,548,915

The following table outlines the five states in which the Company owns the highest concentrations of state and local government securities.

	December 31, 2015			December 31, 2014
(Dollars in thousands)	Amortized Cost		Fair Value	Amortized Cost	Fair Value
Texas	$	211,023	218,051	208,129	216,483
Washington	179,173		187,949	150,691	159,259
Michigan	156,426		162,862	115,564	121,535
California	105,510		108,235	109,057	112,367
Pennsylvania	81,637		83,380	107,261	110,444
All other states	825,041		854,055	792,660	828,827
Total	$	1,558,810	1,614,532	1,483,362	1,548,915

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The following table presents the carrying amount and weighted-average yield of available-for-sale and held-to-maturity investment securities by contractual maturity at December 31, 2015. Weighted-average yields are based upon the amortized cost of securities and are calculated using the interest method which takes into consideration premium amortization, discount accretion and mortgage-backed securities’ prepayment provisions. Weighted-average yields on tax-exempt investment securities exclude the federal income tax benefit.

	One Year or Less				After One through Five Years				After Five through Ten Years				After Ten Years				Residential Mortgage-Backed Securities				Total
(Dollars in thousands)	Amount		Yield		Amount		Yield		Amount		Yield		Amount		Yield		Amount		Yield		Amount		Yield
Available-for-sale
U.S. government and federal agency	$	—	—	%	$	32	1.92	%	$	12,951	1.01	%	$	34,468	0.34	%	$	—	—	%	$	47,451	0.53	%
U.S. government sponsored enterprises	—		—	%	93,167		1.93	%	—		—	%	—		—	%	—		—	%	93,167		1.93	%
State and local governments	54,332		2.10	%	94,003		2.08	%	118,932		3.36	%	617,752		4.32	%	—		—	%	885,019		3.81	%
Corporate bonds	86,898		1.91	%	297,265		2.03	%	—		—	%	—		—	%	—		—	%	384,163		2.01	%
Residential mortgage-backed securities	—		—	%	—		—	%	—		—	%	—		—	%	1,200,960		2.09	%	1,200,960		2.09	%
Total available-for-sale	141,230		1.98	%	484,467		2.02	%	131,883		3.12	%	652,220		4.10	%	1,200,960		2.09	%	2,610,760		2.61	%
Held-to-maturity
State and local governments	—		—	%	—		—	%	25,073		2.55	%	676,999		4.05	%	—		—	%	702,072		4.00	%
Total held-to-maturity	—		—	%	—		—	%	25,073		2.55	%	676,999		4.05	%	—		—	%	702,072		4.00	%
Total investment securities	$	141,230	1.98	%	$	484,467	2.02	%	$	156,956	3.03	%	$	1,329,219	4.08	%	$	1,200,960	2.09	%	$	3,312,832	2.91	%

Interest income from investment securities consisted of the following:

	Years ended
(Dollars in thousands)	December 31, 2015		December 31, 2014	December 31, 2013
Taxable interest	$	40,200	45,920	31,591
Tax-exempt interest	50,886		47,132	42,921
Total interest income	$	91,086	93,052	74,512

For additional information on investment securities, see Notes 1 and 2 to the Consolidated Financial Statements in “Item 8. Financial Statements and Supplementary Data.”

Other-Than-Temporary Impairment on Securities Analysis

Non-marketable equity securities. Non-marketable equity securities largely consist of capital stock issued by the FHLB of Des Moines and are evaluated for impairment whenever events or circumstances suggest the carrying value may not be recoverable. Based on the Company’s evaluation of its investments in non-marketable equity securities as of December 31, 2015, the Company determined that none of such securities had other-than-temporary impairment.

Debt securities. In evaluating debt securities for other-than-temporary impairment losses, management assesses whether the Company intends to sell the security or if it is more-likely-than-not that the Company will be required to sell the debt security. In so doing, management considers contractual constraints, liquidity, capital, asset/liability management and securities portfolio objectives. For debt securities with limited or inactive markets, the impact of macroeconomic conditions in the U.S. upon fair value estimates includes higher risk-adjusted discount rates and changes in credit ratings provided by NRSRO. In June 2015, S&P reaffirmed its AA+ rating of U.S. government long-term debt, and the outlook remains stable. In October 2015, Moody's reaffirmed its Aaa rating of U.S. government long-term debt and the outlook remains stable. In April 2015, Fitch reaffirmed its AAA rating of U.S. government long-term debt and the outlook remains stable. S&P, Moody's and Fitch have similar credit ratings and outlooks with respect to certain long-term debt instruments issued by Federal National Mortgage Association (“Fannie Mae”), Federal Home Loan Mortgage Corporation (“Freddie Mac”) and other U.S. government agencies linked to the long-term U.S. debt.

32

The following table separates investment securities with an unrealized loss position at December 31, 2015 into two categories: investments purchased prior to 2015 and those purchased during 2015. Of those investments purchased prior to 2015, the fair market value and unrealized gain or loss at December 31, 2014 is also presented.

	December 31, 2015							December 31, 2014
(Dollars in thousands)	Fair Value		Unrealized Loss			Unrealized Loss as a Percent of Fair Value		Fair Value		Unrealized Loss			Unrealized Loss as a Percent of Fair Value
Temporarily impaired securities purchased prior to 2015
U.S. government and federal agency	$	2	$	—		—	%	$	3	$	—		—	%
State and local governments	261,906		(8,848		)	(3	)%	267,784		(5,895		)	(2	)%
Corporate bonds	103,650		(1,905		)	(2	)%	108,802		(514		)	—	%
Residential mortgage-backed securities	288,654		(3,704		)	(1	)%	379,467		(2,007		)	(1	)%
Total	$	654,212	$	(14,457	)	(2	)%	$	756,056	$	(8,416	)	(1	)%
Temporarily impaired securities purchased during 2015
U.S. government and federal agency	$	42,493	$	(432	)	(1	)%
U.S. government sponsored enterprises	60,010		(163		)	—	%
State and local governments	80,490		(1,452		)	(2	)%
Corporate bonds	138,570		(1,172		)	(1	)%
Residential mortgage-backed securities	494,779		(5,064		)	(1	)%
Total	$	816,342	$	(8,283	)	(1	)%
Temporarily impaired securities
U.S. government and federal agency	$	42,495	$	(432	)	(1	)%
U.S. government sponsored enterprises	60,010		(163		)	—	%
State and local governments	342,396		(10,300		)	(3	)%
Corporate bonds	242,220		(3,077		)	(1	)%
Residential mortgage-backed securities	783,433		(8,768		)	(1	)%
Total	$	1,470,554	$	(22,740	)	(2	)%

With respect to severity, the following table provides the number of debt securities and amount of unrealized loss in the various ranges of unrealized loss as a percent of book value at December 31, 2015:

(Dollars in thousands)	Number of Debt Securities	Unrealized Loss
Greater than 10.0%	3	$	(1,049	)
5.1% to 10.0%	27	(3,532		)
0.1% to 5.0%	525	(18,159		)
Total	555	$	(22,740	)

With respect to the duration of the impaired debt securities, the Company identified 149 securities which have been continuously impaired for the twelve months ending December 31, 2015. The valuation history of such securities in the prior year(s) was also reviewed to determine the number of months in the prior year(s) in which the identified securities were in an unrealized loss position.

33

The following table provides details of the 149 debt securities which have been continuously impaired for the twelve months ended December 31, 2015, including the most notable loss for any one bond in each category.

(Dollars in thousands)	Number of Debt Securities	Unrealized Loss for 12 Months Or More			Most Notable Loss
U.S. government and federal agency	1	$	—		$	—
State and local governments	124	(8,077		)	(755		)
Corporate bonds	7	(1,265		)	(448		)
Residential mortgage-backed securities	17	(1,542		)	(591		)
Total	149	$	(10,884	)

Based on the Company's analysis of its impaired debt securities as of December 31, 2015, the Company determined that none of such securities had other-than-temporary impairment and the unrealized losses were primarily the result of interest rate changes and market spreads subsequent to acquisition. A substantial portion of the debt securities with unrealized losses at December 31, 2015 were issued by Fannie Mae, Freddie Mac, Government National Mortgage Association (“Ginnie Mae”) and other agencies of the U.S. government or have credit ratings issued by one or more of the NRSRO entities in the four highest credit rating categories. All of the Company's impaired debt securities at December 31, 2015 have been determined by the Company to be investment grade.

Lending Activity

The Company focuses its lending activities primarily on the following types of loans: 1) first-mortgage, conventional loans secured by residential properties, particularly single-family; 2) commercial lending, including agriculture, that concentrates on targeted businesses; and 3) installment lending for consumer purposes (e.g., home equity, automobile, etc.). Supplemental information regarding the Company’s loan portfolio and credit quality based on regulatory classification is provided in the section captioned “Loans by Regulatory Classification” included in “Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations.” The regulatory classification of loans is based primarily on the type of collateral for the loans. Loan information included in “Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations” is based on the Company’s loan segments and classes, which are based on the purpose of the loan, unless otherwise noted as a regulatory classification.

The following table summarizes the Company’s loan portfolio as of the dates indicated:

	December 31, 2015					December 31, 2014					December 31, 2013					December 31, 2012					December 31, 2011
(Dollars in thousands)	Amount			Percent		Amount			Percent		Amount			Percent		Amount			Percent		Amount			Percent
Residential real estate loans	$	688,912		14	%	$	611,463		14	%	$	577,589		15	%	$	516,467		16	%	$	516,807		16	%
Commercial loans
Real estate	2,633,953			53	%	2,337,548			54	%	2,049,247			52	%	1,655,508			51	%	1,672,059			50	%
Other commercial	1,099,564			22	%	925,900			21	%	852,036			22	%	623,397			19	%	623,868			19	%
Total	3,733,517			75	%	3,263,448			75	%	2,901,283			74	%	2,278,905			70	%	2,295,927			69	%
Consumer and other loans
Home equity	420,901			9	%	394,670			9	%	366,465			9	%	403,925			12	%	440,569			13	%
Other consumer	235,351			5	%	218,514			5	%	217,501			5	%	198,128			6	%	212,832			6	%
Total	656,252			14	%	613,184			14	%	583,966			14	%	602,053			18	%	653,401			19	%
Loans receivable	5,078,681			103	%	4,488,095			103	%	4,062,838			103	%	3,397,425			104	%	3,466,135			104	%
Allowance for loan and lease losses	(129,697		)	(3	)%	(129,753		)	(3	)%	(130,351		)	(3	)%	(130,854		)	(4	)%	(137,516		)	(4	)%
Loans receivable, net	$	4,948,984		100	%	$	4,358,342		100	%	$	3,932,487		100	%	$	3,266,571		100	%	$	3,328,619		100	%

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The stated maturities or first repricing term (if applicable) for the loan portfolio at December 31, 2015 was as follows:

(Dollars in thousands)	Residential Real Estate		Commercial	Consumer and Other	Total
Variable rate maturing or repricing
In one year or less	$	215,855	1,052,875	272,748	1,541,478
After one year through five years	166,153		1,290,851	88,403	1,545,407
Thereafter	12,861		191,090	7,362	211,313
Fixed rate maturing
In one year or less	112,914		393,237	129,136	635,287
After one year through five years	120,985		555,905	150,373	827,263
Thereafter	60,144		249,559	8,230	317,933
Total	$	688,912	3,733,517	656,252	5,078,681

Residential Real Estate Lending

The Company’s lending activities consist of the origination of both construction and permanent loans on residential real estate. The Company actively solicits residential real estate loan applications from real estate brokers, contractors, existing customers, customer referrals, and on-line applications. The Company’s lending policies generally limit the maximum loan-to-value ratio on residential mortgage loans to 80 percent of the lesser of the appraised value or purchase price. Policies allow for higher loan-to-values with appropriate risk mitigation such as documented compensating factors, credit enhancement, etc. For loans held for sale, the Company complies with the investor’s loan-to-value guidelines. The Company also provides interim construction financing for single-family dwellings. These loans are supported by a term take-out commitment.

Consumer Land or Lot Loans

The Company originates land and lot acquisition loans to borrowers who intend to construct their primary residence on the respective land or lot. These loans are generally for a term of three to five years and are secured by the developed land or lot with the loan-to-value limited to the lesser of 75 percent of the appraised value or 75 percent of the cost.

Unimproved Land and Land Development Loans

Although the Company has originated very few unimproved land and land development loans since the economic downturn in 2008, the Company may originate such loans on properties intended for residential and commercial use where improved real estate market conditions have occurred. These loans are typically made for a term of 18 months to two years and are secured by the developed property with a loan-to-value not to exceed the lesser of 75 percent of cost or 65 percent of the appraised discounted bulk sale value upon completion of the improvements. The projects under development are inspected on a regular basis and advances are made on a percentage-of-completion basis. The loans are made to borrowers with real estate development experience and appropriate financial strength. Generally, the Company requires that a certain percentage of the development be pre-sold or that construction and term take-out commitments are in place prior to funding the loan. Loans made on unimproved land are generally made for a term of five to ten years with a loan-to-value not to exceed the lesser of 50 percent of appraised value or 50 percent of cost.

Residential Builder Guidance Lines

The Company provides Builder Guidance Lines that are comprised of pre-sold and spec-home construction and lot acquisition loans. The spec-home construction and lot acquisition loans are limited to a specific number and maximum amount. Generally, the individual loans will not exceed a one year maturity. The homes under construction are inspected on a regular basis and advances made on a percentage-of-completion basis.

Commercial Real Estate Loans

Loans are made to purchase, construct and finance commercial real estate properties. These loans are generally made to borrowers who own and will occupy the property and generally have a loan-to-value up to the lesser of 75 percent of the appraised value or 75 percent of the cost and require a minimum 1.2 times debt service coverage margin. Loans to finance investment or income properties are made but require additional equity and generally have a loan-to-value up to the lesser of 70 percent of appraised value or 70 percent of cost and require a higher debt service coverage margin commensurate with the specific property and projected income.

Consumer Lending

The majority of consumer loans are secured by real estate, automobiles, or other assets. The Company intends to continue making such loans because of their short-term nature, generally between three months and five years. Moreover, interest rates on consumer loans are generally higher than on residential mortgage loans. The Company also originates second mortgage and home equity loans, especially to existing customers in instances where the first and second mortgage loans are less than 80 percent of the current appraised value of the property.

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Home Equity Loans

The Company’s home equity loans of $421 million and $395 million as of December 31, 2015 and 2014, respectively, consist of 1-4 family junior lien mortgages and first and junior lien lines of credit secured by residential real estate. At December 31, 2015, the home equity loan portfolio consisted of 78 percent variable interest rate and 22 percent fixed interest rate loans. Approximately 53 percent of the home equity loans were in a first lien status with the remaining 47 percent in junior lien status. Approximately 15 percent of the home equity loans were closed-end amortizing loans and 85 percent were open-end, revolving home equity lines of credit. At December 31, 2014, the home equity loan portfolio consisted of 70 percent variable interest rate and 30 percent fixed interest rate loans. Approximately 51 percent of the home equity loans were in a first lien status with the remaining 49 percent in junior lien status. Approximately 17 percent of the home equity loans were closed-end amortizing loans and 83 percent were open-end, revolving home equity lines of credit.

Prior to 2014, home equity lines of credit were generally originated with maturity terms from 10 to 15 years. At origination, borrowers chose a variable interest rate or fixed interest rate for the full term of the line of credit, or a fixed interest rate for the first 3 or 5 years from the origination date which then converts to a variable interest rate for the remaining term of such home equity lines of credit. During the draw period, a borrower with a variable interest rate term had the option of converting to a fixed interest rate for all or a portion of the remaining term to maturity. Beginning in 2014, home equity lines of credit are originated with maturity terms of 15 years. At origination, borrowers can choose a variable interest rate that changes quarterly, or after the first 3, 5 or 10 years from the origination date.

The draw period for home equity lines of credit usually exists from origination to maturity. During the draw period, the Company has home equity lines of credit where the borrowers pay interest only and home equity lines of credit where borrowers pay principal and interest.

Credit Risk Management

The Company is committed to a conservative management of the credit risk within the loan portfolio, including the early recognition of problem loans. The Company’s credit risk management includes stringent credit policies, individual loan approval limits, limits on concentrations of credit, and committee approval of larger loan requests. Management practices also include regular internal and external credit examinations, identification and review of individual loans and leases experiencing deterioration of credit quality, procedures for the collection of non-performing assets, quarterly monitoring of the loan portfolio, semi-annual review of loans by industry, and periodic stress testing of the loans secured by real estate. Federal and state regulatory safety and soundness examinations are conducted annually.

The Company’s loan policy and credit administration practices establish standards and limits for all extensions of credit that are secured by interests in or liens on real estate, or made for the purpose of financing the construction of real property or other improvements. Ongoing monitoring and review of the loan portfolio is based on current information, including: the borrowers’ and guarantors’ creditworthiness, value of the real estate and other collateral, the project’s performance against projections, and monthly inspections by Company employees or external parties until the real estate project is complete.

Monitoring of the junior lien and home equity lines of credit portfolios includes evaluating payment delinquency, collateral values, bankruptcy notices and foreclosure filings. Additionally, the Company places junior lien mortgages and junior lien home equity lines of credit on non-accrual status when there is evidence that the associated senior lien is 90 days past due or is in the process of foreclosure, regardless of the junior lien delinquency status.

Loan Approval Limits

Individual loan approval limits have been established for each lender based on the loan types and experience of the individual. Each bank division has an Officer Loan Committee consisting of senior lenders and members of senior management. Each of the Bank divisions’ Officer Loan Committees has loan approval authority between $250,000 and $1,000,000. Each of the Bank divisions’ Advisory Boards has loan approval authority up to $2,000,000. Loans, or a combination of loans, including new and renewed, exceeding these limits and up to $10,000,000 are subject to approval by the Company’s Executive Loan Committee consisting of the Bank divisions’ senior loan officers and the Company’s Chief Credit Administrator. Loans, or a combination of loans, including new and renewed, greater than $10,000,000 are subject to approval by the Bank’s Board of Directors. Under banking laws, loans to one borrower and related entities are limited to a prescribed percentage of the unimpaired capital and surplus of the Bank.

Interest Reserves

Interest reserves are used to periodically advance loan funds to pay interest charges on the outstanding balance of the related loan. As with any extension of credit, the decision to establish a loan-funded interest reserve upon origination of construction loans, including residential construction and land, lot and other construction loans, is based on prudent underwriting, including the feasibility of the project, expected cash flow, creditworthiness of the borrower and guarantors, and the protection provided by the real estate and other underlying collateral. Interest reserves provide an effective means for addressing the cash flow characteristics of construction loans. In response to the downturn in the housing market and potential impact upon construction lending, the Company discourages the creation or continued use of interest reserves.

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Interest reserves are advanced provided the related construction loan is performing as expected. Loans with interest reserves may be extended, renewed or restructured only when the related loan continues to perform as expected and meets the prudent underwriting standards identified above. Such renewals, extension or restructuring are not permitted in order to keep the related loan current.

In monitoring the performance and credit quality of a construction loan, the Company assesses the adequacy of any remaining interest reserve, and whether the use of an interest reserve remains appropriate in the presence of emerging weakness and associated risks in the construction loan.

The ongoing accrual and recognition of uncollected interest as income continues only when facts and circumstances continue to reasonably support the contractual payment of principal or interest. Loans are typically designated as non-accrual when the collection of the contractual principal or interest is unlikely and has remained unpaid for ninety days or more. For such loans, the accrual of interest and its capitalization into the loan balance will be discontinued.

The Company had $65.2 million and $48.1 million of loans with remaining interest reserves of $1.5 million and $1.0 million as of December 31, 2015 and 2014, respectively. During 2015, the Company extended, renewed or restructured 3 loans with interest reserves, such loans having an aggregate outstanding principal balance of $2.2 million as of December 31, 2015. During 2014, the Company extended, renewed or restructured 4 loans with interest reserves, such loans having an aggregate outstanding principal balance of $7.9 million as of December 31, 2014. Such actions were based on prudent underwriting standards and not to keep the loans current. As of December 31, 2015, the Company had 2 construction loans totaling $768 thousand with interest reserves that are currently non-performing or which are potential problem loans.

Loan Purchases and Sales

Fixed rate, long-term mortgage loans are generally sold in the secondary market. The Company is active in the secondary market, primarily through the origination of conventional, Rural Development, Federal Housing Administration and Department of Veterans Affairs residential mortgages. The sale of loans in the secondary mortgage market reduces the Company’s risk of holding long-term, fixed rate loans during periods of rising interest rates. In connection with conventional loan sales, the Company typically sells the majority of mortgage loans originated with servicing released. The Company has also been very active in generating commercial Small Business Administration loans, and other commercial loans, with a portion of those loans sold to investors. The Company has not originated any type of subprime mortgages, either for the loan portfolio or for sale to investors. In addition, the Company has not purchased investment securities collateralized with subprime mortgages. The Company does not actively purchase loans from other financial institutions, and substantially all of the Company’s loans receivable are with customers in the Company’s geographic market areas.

Loan Origination and Other Fees

In addition to interest earned on loans, the Company receives fees for originating loans. Loan fees generally are a percentage of the principal amount of the loan and are charged to the borrower, and are normally deducted from the proceeds of the loan. Loan origination fees are generally 1.0 percent to 1.5 percent on residential mortgages and 0.5 percent to 1.5 percent on commercial loans. Consumer loans require a fixed fee amount as well as a minimum interest amount. The Company also receives other fees and charges relating to existing loans, which include charges and fees collected in connection with loan modifications.

Appraisal and Evaluation Process

The Company’s loan policy and credit administration practices have adopted and implemented the applicable legal and regulatory requirements, which establishes criteria for obtaining appraisals or evaluations (new or updated), including transactions that are otherwise exempt from the appraisal requirements.

Each of the Bank divisions monitor conditions, including supply and demand factors, in the real estate markets served so they can react quickly to changing market conditions to mitigate potential losses from specific credit exposures within the loan portfolio. Evidence of the following real estate market conditions and trends is obtained from lending personnel and third party sources:

• demographic indicators, including employment and population trends;

• foreclosures, vacancy, construction and absorption rates;

• property sales prices, rental rates, and lease terms;

• current tax assessments;

• economic indicators, including trends within the lending areas; and

• valuation trends, including discount and capitalization rates.

Third party information sources include federal, state, and local governments and agencies thereof, private sector economic data vendors, real estate brokers, licensed agents, sales, rental and foreclosure data tracking services.

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The time between ordering an appraisal or evaluation and receipt from third party vendors is typically two to six weeks for residential property depending on geographic market and four to six weeks for non-residential property. For real estate properties that are of highly specialized or limited use, significantly complex or large, additional time beyond the typical times may be required for new appraisals or evaluations (new or updated).

As part of the Company’s credit administration and portfolio monitoring practices, the Company’s regular internal and external credit examinations review a significant number of individual loan files. Appraisals and evaluations (new or updated) are reviewed to determine whether the timeliness, methods, assumptions, and findings are reasonable and in compliance with the Company’s loan policy and credit administration practices. Such reviews include the adequacy of the steps taken by the Company to ensure that the individuals who perform appraisals and evaluations (new or updated) are appropriately qualified and are not subject to conflicts of interest. If there are any deficiencies noted in the reviews, they are reported to the Bank’s Board of Directors and prompt corrective action is taken.

Non-performing Assets

The following table summarizes information regarding non-performing assets at the dates indicated:

	At or for the Years ended
(Dollars in thousands)	December 31, 2015			December 31, 2014		December 31, 2013		December 31, 2012		December 31, 2011
Other real estate owned	$	26,815		27,804		26,860		45,115		78,354
Accruing loans 90 days or more past due
Residential real estate	—			35		429		451		59
Commercial	2,051			105		160		791		1,168
Consumer and other	80			74		15		237		186
Total	2,131			214		604		1,479		1,413
Non-accrual loans
Residential real estate	8,073			6,798		10,702		14,237		11,881
Commercial	36,510			48,138		61,577		68,887		109,641
Consumer and other	6,550			6,946		9,677		13,809		12,167
Total	51,133			61,882		81,956		96,933		133,689
Total non-performing assets 1	$	80,079		89,900		109,420		143,527		213,456
Non-performing assets as a percentage of subsidiary assets	0.88		%	1.08	%	1.39	%	1.87	%	2.92	%
Allowance for loan and lease losses as a percentage of non-performing loans	244		%	209	%	158	%	133	%	102	%
Accruing loans 30-89 days past due	$	19,413		25,904		32,116		27,097		49,086
Accruing troubled debt restructurings	$	63,590		69,129		81,110		100,151		98,859
Non-accrual troubled debt restructurings	$	27,057		33,714		42,461		50,925		65,584
Interest income 2	$	2,471		3,005		4,122		5,161		7,441

__________

¹  As of December 31, 2015, non-performing assets have not been reduced by U.S. government guarantees of $2.3 million.

²  Amounts represent estimated interest income that would have been recognized on loans accounted for on a non-accrual basis as of the end of each period had such loans performed pursuant to contractual terms.

Non-performing assets at December 31, 2015 were $80.1 million, a decrease of $9.8 million, or 11 percent, from a year ago. Early stage delinquencies (accruing loans 30-89 days past due) of $19.4 million at December 31, 2015 decreased $6.5 million from the prior year end.

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Most of the Company’s non-performing assets are secured by real estate, and based on the most current information available to management, including updated appraisals or evaluations (new or updated), the Company believes the value of the underlying real estate collateral is adequate to minimize significant charge-offs or losses to the Company. The Company evaluates the level of its non-performing loans, the values of the underlying real estate and other collateral, and related trends in internal and external environmental factors and net charge-offs in determining the adequacy of the ALLL. Through pro-active credit administration, the Company works closely with its borrowers to seek favorable resolution to the extent possible, thereby attempting to minimize net charge-offs or losses to the Company. The Company continues to maintain an adequate allowance while working to reduce non-performing loans.

Construction loans, a regulatory classification, accounted for 34 percent of the Company’s non-accrual loans as of December 31, 2015. Land, lot and other construction loans, a regulatory classification, were 94 percent of the non-accrual construction loans. Of the Company’s $17.6 million of non-accrual construction loans at December 31, 2015, 91 percent of such loans had collateral properties securing the loans in Western Montana. Consistent with the gradual economic recovery, the upscale primary, secondary and other housing markets, as well as the associated construction and building industries show improved activity after several years of decline. As the housing market (rental and owner-occupied) and related industries continue to recover from the downturn, the Company continues to reduce its exposure to loss in the land, lot and other construction loan portfolio.

During the construction loan term, all construction loan collateral properties are inspected at least monthly, or more frequently as needed, until completion. Draws on construction loans are predicated upon the results of the inspection and advanced based upon a percentage-of-completion basis versus original budget percentages. When construction loans become non-performing and the associated project is not complete, the Company on a case-by-case basis makes the decision to advance additional funds or to initiate collection/foreclosure proceedings. Such decision includes obtaining “as-is” and “at completion” appraisals for consideration of potential increases or decreases in the collateral’s value. The Company also considers the increased costs of monitoring progress to completion, and the related collection/holding period costs should collateral ownership be transferred to the Company. With very limited exception, the Company does not disburse additional funds on non-performing loans. Instead, the Company has proceeded to collection and foreclosure actions in order to reduce the Company’s exposure to loss on such loans.

For additional information on accounting policies relating to non-performing assets and impaired loans, see Note 1 to the Consolidated Financial Statements in “Item 8. Financial Statements and Supplementary Data.”

Impaired Loans

Loans are designated impaired when, based upon current information and events, it is probable that the Company will be unable to collect the scheduled payments of principal or interest when due according to the contractual terms of the loan agreement and therefore, the Company has serious doubts as to the ability of such borrowers to fulfill the contractual obligation. Impaired loans include non-performing loans (i.e., non-accrual loans and accruing loans ninety days or more past due) and accruing loans under ninety days past due where it is probable payments will not be received according to the loan agreement (e.g., troubled debt restructuring).

Impaired loans were $141 million and $161 million as of December 31, 2015 and 2014, respectively. The ALLL includes specific valuation allowances of $8.1 million and $11.6 million of impaired loans as of December 31, 2015 and 2014, respectively. Of the total impaired loans at December 31, 2015, there were 22 significant commercial real estate and other commercial loans that accounted for $59.0 million, or 42 percent, of the impaired loans. The 22 loans were collateralized by 138 percent of the loan value, the majority of which had appraisals or evaluations (new or updated) during the last year, such appraisals reviewed at least quarterly taking into account current market conditions. Of the total impaired loans at December 31, 2015, there were 159 loans aggregating $84.0 million, or 60 percent, whereby the borrowers had more than one impaired loan.

Restructured Loans

A restructured loan is considered a troubled debt restructuring (“TDR”) if the creditor, for economic or legal reasons related to the debtor’s financial difficulties, grants a concession to the debtor that it would not otherwise consider. The Company had TDR loans of $90.6 million and $103 million as of December 31, 2015 and 2014, respectively. The Company’s TDR loans are considered impaired loans of which $27.1 million and $33.7 million as of December 31, 2015 and 2014, respectively, are designated as non-accrual.

Each restructured debt is separately negotiated with the borrower and includes terms and conditions that reflect the borrower’s prospective ability to service the debt as modified. The Company discourages the use of the multiple loan strategy when restructuring loans regardless of whether or not the loans are designated as TDRs.

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Other Real Estate Owned

The book value prior to the acquisition of collateral and transfer of the loan into OREO during 2015 was $8.9 million of which $1.6 million was residential real estate loans, $5.9 million was commercial loans, and $1.4 million was consumer loans. The fair value of the loan collateral acquired in foreclosure during 2015 was $8.0 million of which $1.5 million was residential real estate, $5.5 million was commercial, and $1.0 million was consumer loans. The following table sets forth the changes in OREO for the periods indicated:

	Years ended
(Dollars in thousands)	December 31, 2015			December 31, 2014		December 31, 2013
Balance at beginning of period	$	27,804		26,860		45,115
Acquisitions	974			3,928		1,203
Additions	7,989			11,493		15,266
Capital improvements	1,710			1,661		79
Write-downs	(1,575		)	(691	)	(3,639	)
Sales	(10,087		)	(15,447	)	(31,164	)
Balance at end of period	$	26,815		27,804		26,860

Allowance for Loan and Lease Losses

Determining the adequacy of the ALLL involves a high degree of judgment and is inevitably imprecise as the risk of loss is difficult to quantify. The ALLL methodology is designed to reasonably estimate the probable loan and lease losses within the Company’s loan portfolio. Accordingly, the ALLL is maintained within a range of estimated losses. The determination of the ALLL, including the provision for loan losses and net charge-offs, is a critical accounting estimate that involves management’s judgments about all known relevant internal and external environmental factors that affect loan losses, including the credit risk inherent in the loan portfolio, economic conditions nationally and in the local markets in which the Company operates, trends and changes in collateral values, delinquencies, non-performing assets, net charge-offs and credit-related policies and personnel. Although the Company continues to actively monitor economic trends, soft economic conditions combined with potential declines in the values of real estate that collateralize most of the Company’s loan portfolio may adversely affect the credit risk and potential for loss to the Company.

The ALLL evaluation is well documented and approved by the Company’s Board. In addition, the policy and procedures for determining the balance of the ALLL are reviewed annually by the Company’s Board, the internal audit department, independent credit reviewers and state and federal bank regulatory agencies.

At the end of each quarter, the Company analyzes its loan portfolio and maintains an ALLL at a level that is appropriate and determined in accordance with GAAP. The allowance consists of a specific valuation allowance component and a general valuation allowance component. The specific valuation allowance component relates to loans that are determined to be impaired. A specific valuation allowance is established when the fair value of a collateral-dependent loan or the present value of the loan’s expected future cash flows (discounted at the loan’s effective interest rate) is lower than the carrying value of the impaired loan. The general valuation allowance component relates to probable credit losses inherent in the balance of the loan portfolio based on historical loss experience, adjusted for changes in trends and conditions of qualitative or environmental factors.

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The Bank divisions’ credit administration reviews their respective loan portfolios to determine which loans are impaired and estimates the specific valuation allowance. The impaired loans and related specific valuation allowance are then provided to the Company’s credit administration for further review and approval. The Company’s credit administration also determines the estimated general valuation allowance and reviews and approves the overall ALLL. The credit administration of the Company exercises significant judgment when evaluating the effect of applicable qualitative or environmental factors on the Company’s historical loss experience for loans not identified as impaired. Quantification of the impact upon the Company’s ALLL is inherently subjective as data for any factor may not be directly applicable, consistently relevant, or reasonably available for management to determine the precise impact of a factor on the collectability of the Company’s loans collectively evaluated for impairment as of each evaluation date. The Company’s credit administration documents its conclusions and rationale for changes that occur in each applicable factor’s weight (i.e., measurement) and ensures that such changes are directionally consistent based on the underlying current trends and conditions for the factor. To have directional consistency, the provision for loan losses and credit quality should generally move in the same direction.

The Company’s model includes thirteen Bank divisions with separate management teams providing substantial local oversight to the lending and credit management function. The Company’s business model affords multiple reviews of larger loans before credit is extended, a significant benefit in mitigating and managing the Company’s credit risk. The geographic dispersion of the market areas in which the Company operates further mitigates the risk of credit loss. While this process is intended to limit credit exposure, there can be no assurance that further problem credits will not arise and additional loan losses incurred, particularly in this slowly improving, but fragile economic recovery and in periods of rapid economic downturns.

The primary responsibility for credit risk assessment and identification of problem loans rests with the loan officer of the account. This continuous process of identifying impaired loans is necessary to support management’s evaluation of the ALLL adequacy. An independent loan review function verifying credit risk ratings evaluates the loan officer and management’s evaluation of the loan portfolio credit quality.

No assurance can be given that the Company will not, in any particular period, sustain losses that are significant relative to the ALLL amount, or that subsequent evaluations of the loan portfolio applying management’s judgment about then current factors, including economic and regulatory developments, will not require significant changes in the ALLL. Under such circumstances, this could result in enhanced provisions for loan losses. See additional risk factors in “Item 1A. Risk Factors.”

The following table summarizes the allocation of the ALLL as of the dates indicated:

	December 31, 2015				December 31, 2014				December 31, 2013				December 31, 2012				December 31, 2011
(Dollars in thousands)	ALLL		Percent of Loans  in Category		ALLL		Percent of Loans in Category		ALLL		Percent of Loans in Category		ALLL		Percent of Loans in Category		ALLL		Percent of Loans in Category
Residential real estate	$	14,427	13	%	$	14,680	13	%	$	14,067	14	%	$	15,482	15	%	$	17,227	15	%
Commercial real estate	67,877		52	%	67,799		52	%	70,332		51	%	74,398		49	%	76,920		48	%
Other commercial	32,525		22	%	30,891		21	%	28,630		21	%	21,567		18	%	20,833		18	%
Home equity	8,998		8	%	9,963		9	%	9,299		9	%	10,659		12	%	13,616		13	%
Other consumer	5,870		5	%	6,420		5	%	8,023		5	%	8,748		6	%	8,920		6	%
Total	$	129,697	100	%	$	129,753	100	%	$	130,351	100	%	$	130,854	100	%	$	137,516	100	%

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The following table summarizes the ALLL experience for the periods indicated:

	Years ended
(Dollars in thousands)	December 31, 2015			December 31, 2014		December 31, 2013		December 31, 2012		December 31, 2011
Balance at beginning of period	$	129,753		130,351		130,854		137,516		137,107
Provision for loan losses	2,284			1,912		6,887		21,525		64,500
Charge-offs
Residential real estate	(985		)	(431	)	(793	)	(5,267	)	(5,671	)
Commercial loans	(4,242		)	(4,860	)	(8,407	)	(21,578	)	(52,428	)
Consumer and other loans	(1,775		)	(2,312	)	(4,443	)	(7,827	)	(11,267	)
Total charge-offs	(7,002		)	(7,603	)	(13,643	)	(34,672	)	(69,366	)
Recoveries
Residential real estate	92			328		299		643		486
Commercial loans	3,620			3,757		4,803		4,088		3,830
Consumer and other loans	950			1,008		1,151		1,754		959
Total recoveries	4,662			5,093		6,253		6,485		5,275
Charge-offs, net of recoveries	(2,340		)	(2,510	)	(7,390	)	(28,187	)	(64,091	)
Balance at end of period	$	129,697		129,753		130,351		130,854		137,516
ALLL as a percentage of total loans	2.55		%	2.89	%	3.21	%	3.85	%	3.97	%
Net charge-offs as a percentage of average loans	0.05		%	0.06	%	0.20	%	0.80	%	1.77	%

The allowance was $130 million at December 31, 2015 and remained stable compared to a year ago. The allowance was 2.55 percent of total loans outstanding at December 31, 2015 compared to 2.89 percent at December 31, 2014. The reduction in the allowance as a percentage of total loans was driven primarily by loan growth, stabilizing credit quality, and no allowance carried over from the bank acquisitions as a result of the acquired loans recorded at fair value.

The Company’s ALLL of $130 million is considered adequate to absorb losses from any class of its loan portfolio. For the periods ended December 31, 2015 and 2014, the Company believes the ALLL is commensurate with the risk in the Company’s loan portfolio and is directionally consistent with the change in the quality of the Company’s loan portfolio.

When applied to the Company’s historical loss experience, the qualitative or environmental factors result in the provision for loan losses being recorded in the period in which the loss has probably occurred. When the loss is confirmed at a later date, a charge-off is recorded. During 2015, loan charge-offs, net of recoveries, exceeded the provision for loan losses, by $56 thousand. During the same period in 2014, loan charge-offs, net of recoveries, exceeded the provision for loan losses, by $598 thousand.

The Company provides commercial services to individuals, small to medium-sized businesses, community organizations and public entities from 144 locations, including 135 branches, across Montana, Idaho, Wyoming, Colorado, Utah, and Washington. The Rocky Mountain states in which the Company operates have diverse economies and markets that are tied to commodities (crops, livestock, minerals, oil and natural gas), tourism, real estate and land development and an assortment of industries, both manufacturing and service-related. Thus, the changes in the global, national, and local economies are not uniform across the Company’s geographic locations.

42

There continues to be slow improvements in the economic environment compared to the past several years and the housing market is slowly recovering. Home prices continue to increase within the Company’s footprint and four of the Company’s states continue to outpace the one-year national rate of home price appreciation. Colorado, Washington and Idaho all rank in the top 10 nationally for home price increases, while Montana and Wyoming continue to lag behind the national trend. The level of year-over-year home price appreciation has increased in all of the Company’s states and home prices in Colorado, Montana and Wyoming are above their 2007 highs. Personal income growth remains in positive territory for each of the Company’s states; however, Idaho, Montana and Wyoming are lagging behind the national average. The Federal Reserve Bank of Philadelphia’s composite state coincident indices projects steady growth during the next six months in most of the Company’s footprint, except Wyoming, which appears likely to contract due to the reduced prices of oil and natural gas. Despite substantial increases in consumer sentiment since 2011, consumer spending has remained constant. This may be due to slow wage increases paired with increased costs associated with medical care and housing. The general unemployment rate trend across the Company’s footprint is down; however, minor upticks have occurred recently in several states. Year-over-year unemployment trends remain favorable despite global and national uncertainty and all of the Company’s states are continuing to experience year-over-year declines in their rates. The tourism industry and related lodging activity continues to be a source of strength for the locations where the Company’s market areas have national parks and similar recreational areas in the market areas served. Overall, the Company sees positive signs in the various economic indices; however, given the significant recession experienced during 2008 and 2009, the Company is cautiously optimistic about the recovery of the housing industry. The Company will continue to actively monitor the economy’s impact on its lending portfolio.

In evaluating the need for a specific or general valuation allowance for impaired and unimpaired loans, respectively, within the Company’s construction loan portfolio (i.e., regulatory classification), including residential construction and land, lot and other construction loans, the credit risk related to such loans was considered in the ongoing monitoring of such loans, including assessments based on current information, including appraisals or evaluations (new or updated) of the underlying collateral, expected cash flows and the timing thereof, as well as the estimated cost to sell when such costs are expected to reduce the cash flows available to repay or otherwise satisfy the construction loan. Construction loans were 11 percent and 12 percent of the Company’s total loan portfolio and accounted for 34 percent and 43 percent of the Company’s non-accrual loans at December 31, 2015 and December 31, 2014, respectively. Collateral securing construction loans includes residential buildings (e.g., single/multi-family and condominiums), commercial buildings, and associated land (e.g., multi-acre parcels and individual lots, with and without shorelines).

The Company’s ALLL consisted of the following components as of the dates indicated:

(Dollars in thousands)	December 31, 2015		December 31, 2014
Specific valuation allowance	$	8,124	11,597
General valuation allowance	121,573		118,156
Total ALLL	$	129,697	129,753

During 2015, the ALLL decreased by $56 thousand, the net result of a $3.5 million decrease in the specific valuation allowance and a $3.4 million increase in the general valuation allowance. The specific valuation allowance decreased as the result of a $11.0 million decrease in loans individually reviewed for impairment with a specific impairment. The increase in the general valuation allowance since the prior year end was a result of an increase of $360 million in loans collectively evaluated for impairment, excluding the current year acquisitions. At acquisition date, the assets and liabilities of acquired banks are recorded at their estimated fair values which results in no ALLL carried over on loans from acquired banks.

For additional information regarding the ALLL, its relation to the provision for loan losses and risk related to asset quality, see Note 3 to the Consolidated Financial Statements in “Item 8. Financial Statements and Supplementary Data.”

43

Loans by Regulatory Classification

Supplemental information regarding identification of the Company’s loan portfolio and credit quality based on regulatory classification is provided in the following tables. The regulatory classification of loans is based primarily on the type of collateral for the loans. There may be differences when compared to loan tables and loan amounts appearing elsewhere in this Annual Report on Form 10-K which reflect the Company’s internal loan segments and classes which are based on the purpose of the loan.

The following table summarizes the Company’s loan portfolio by regulatory classification:

(Dollars in thousands)	December 31, 2015			December 31, 2014			$ Change			% Change
Custom and owner occupied construction	$	75,094		$	56,689		$	18,405		32	%
Pre-sold and spec construction	50,288			47,406			2,882			6	%
Total residential construction	125,382			104,095			21,287			20	%
Land development	62,356			82,829			(20,473		)	(25	)%
Consumer land or lots	97,270			101,818			(4,548		)	(4	)%
Unimproved land	73,844			86,116			(12,272		)	(14	)%
Developed lots for operative builders	12,336			14,126			(1,790		)	(13	)%
Commercial lots	22,035			16,205			5,830			36	%
Other construction	156,784			150,075			6,709			4	%
Total land, lot, and other construction	424,625			451,169			(26,544		)	(6	)%
Owner occupied	938,625			849,148			89,477			11	%
Non-owner occupied	774,192			674,381			99,811			15	%
Total commercial real estate	1,712,817			1,523,529			189,288			12	%
Commercial and industrial	649,553			547,910			101,643			19	%
Agriculture	367,339			310,785			56,554			18	%
1st lien	856,193			775,785			80,408			10	%
Junior lien	65,383			68,358			(2,975		)	(4	)%
Total 1-4 family	921,576			844,143			77,433			9	%
Multifamily residential	201,542			160,426			41,116			26	%
Home equity lines of credit	372,039			334,788			37,251			11	%
Other consumer	150,469			133,773			16,696			12	%
Total consumer	522,508			468,561			53,947			12	%
Other	209,853			124,203			85,650			69	%
Total loans receivable, including loans held for sale	5,135,195			4,534,821			600,374			13	%
Less loans held for sale 1	(56,514		)	(46,726		)	(9,788		)	21	%
Total loans receivable	$	5,078,681		$	4,488,095		$	590,586		13	%

__________

¹ Loans held for sale are primarily 1st lien 1-4 family loans.

44

The following tables summarize selected information identified by regulatory classification of the Company’s non-performing assets.

	Non-performing Assets, by Loan Type			Non- Accruing Loans	Accruing Loans 90  Days or More Past Due	Other Real Estate Owned
(Dollars in thousands)	December 31, 2015		December 31, 2014	December 31, 2015	December 31, 2015	December 31, 2015
Custom and owner occupied construction	$	1,016	1,132	1,016	—	—
Pre-sold and spec construction	—		218	—	—	—
Total residential construction	1,016		1,350	1,016	—	—
Land development	17,582		20,842	6,791	—	10,791
Consumer land or lots	2,250		3,581	934	20	1,296
Unimproved land	12,328		14,170	8,382	—	3,946
Developed lots for operative builders	488		1,318	267	—	221
Commercial lots	1,521		2,660	241	—	1,280
Other construction	4,236		5,151	—	—	4,236
Total land, lot and other construction	38,405		47,722	16,615	20	21,770
Owner occupied	10,952		13,574	8,794	—	2,158
Non-owner occupied	3,446		3,013	2,634	—	812
Total commercial real estate	14,398		16,587	11,428	—	2,970
Commercial and industrial	3,993		4,375	3,916	20	57
Agriculture	3,281		3,074	2,666	167	448
1st lien	10,691		9,580	9,264	64	1,363
Junior lien	668		442	668	—	—
Total 1-4 family	11,359		10,022	9,932	64	1,363
Multifamily residential	113		440	113	—	—
Home equity lines of credit	5,486		6,099	5,338	15	133
Other consumer	228		231	109	45	74
Total consumer	5,714		6,330	5,447	60	207
Other	1,800		—	—	1,800	—
Total	$	80,079	89,900	51,133	2,131	26,815

45

	Accruing 30-89 Days Delinquent Loans, by Loan Type
(Dollars in thousands)	December 31, 2015		December 31, 2014		$ Change			% Change
Custom and owner occupied construction	$	462	$	—	$	462		n/m
Pre-sold and spec construction	181		869		(688		)	(79	)%
Total residential construction	643		869		(226		)	(26	)%
Land development	447		—		447			n/m
Consumer land or lots	166		391		(225		)	(58	)%
Unimproved land	774		267		507			190	%
Commercial lots	—		21		(21		)	(100	)%
Other construction	337		—		337			n/m
Total land, lot and other construction	1,724		679		1,045			154	%
Owner occupied	2,760		5,971		(3,211		)	(54	)%
Non-owner occupied	923		3,131		(2,208		)	(71	)%
Total commercial real estate	3,683		9,102		(5,419		)	(60	)%
Commercial and industrial	1,968		2,915		(947		)	(32	)%
Agriculture	1,014		994		20			2	%
1st lien	6,272		6,804		(532		)	(8	)%
Junior lien	1,077		491		586			119	%
Total 1-4 family	7,349		7,295		54			1	%
Multifamily residential	662		—		662			n/m
Home equity lines of credit	1,046		1,288		(242		)	(19	)%
Other consumer	1,227		928		299			32	%
Total consumer	2,273		2,216		57			3	%
Other	97		1,834		(1,737		)	(95	)%
Total	$	19,413	$	25,904	$	(6,491	)	(25	)%

__________

n/m - not measurable

46

The following table summarizes net charge-offs at the dates indicated, including identification by regulatory classification:

	Net Charge-Offs (Recoveries), Years ended, By Loan Type					Charge-Offs	Recoveries
(Dollars in thousands)	December 31, 2015			December 31, 2014		December 31, 2015	December 31, 2015
Pre-sold and spec construction	$	(53	)	(94	)	—	53
Land development	(288		)	(390	)	957	1,245
Consumer land or lots	66			375		512	446
Unimproved land	(325		)	52		—	325
Developed lots for operative builders	(85		)	(140	)	51	136
Commercial lots	(26		)	(6	)	—	26
Other construction	(1		)	—		—	1
Total land, lot and other construction	(659		)	(109	)	1,520	2,179
Owner occupied	247			669		668	421
Non-owner occupied	93			(162	)	116	23
Total commercial real estate	340			507		784	444
Commercial and industrial	1,389			1,069		2,166	777
Agriculture	50			28		59	9
1st lien	834			372		971	137
Junior lien	(125		)	183		79	204
Total 1-4 family	709			555		1,050	341
Multifamily residential	(318		)	138		—	318
Home equity lines of credit	740			190		897	157
Other consumer	143			226		525	382
Total consumer	883			416		1,422	539
Other	(1		)	—		—	1
Total	$	2,340		2,510		7,001	4,661

47

Sources of Funds

The Company’s deposits have traditionally been the principal source of funds for use in lending and other business purposes. The Company also obtains funds from repayment of loans and investment securities, securities sold under agreements to repurchase (“repurchase agreements”), wholesale deposits, advances from FHLB and other borrowings. Loan repayments are a relatively stable source of funds, while interest bearing deposit inflows and outflows are significantly influenced by general interest rate levels and market conditions. Borrowings and advances may be used on a short-term basis to compensate for reductions in normal sources of funds such as deposit inflows at less than projected levels. Borrowings also may be used on a long-term basis to support expanded activities, match maturities of longer-term assets or manage interest rate risk.

Deposits

The Company has several deposit programs designed to attract both short-term and long-term deposits from the general public by providing a wide selection of accounts and rates. These programs include non-interest bearing demand accounts, interest bearing checking, savings, money market deposit accounts, fixed rate certificates of deposit with maturities ranging from three months to five years, negotiated-rate jumbo certificates, and individual retirement accounts. These deposits are obtained primarily from individual and business residents in the Bank’s geographic market areas. In addition, wholesale deposits are obtained through various programs and include brokered deposits classified as NOW, money market deposit and certificate accounts. The Company’s deposits are summarized below:

	December 31, 2015				December 31, 2014				December 31, 2013				December 31, 2012				December 31, 2011
(Dollars in thousands)	Amount		Percent		Amount		Percent		Amount		Percent		Amount		Percent		Amount		Percent
Non-interest bearing deposits	$	1,918,310	28	%	$	1,632,403	26	%	$	1,374,419	25	%	$	1,191,933	22	%	$	1,010,899	21	%
NOW accounts	1,516,026		22	%	1,328,130		21	%	1,113,878		20	%	988,984		18	%	843,129		18	%
Savings accounts	838,274		12	%	693,714		11	%	600,998		11	%	478,809		9	%	404,671		8	%
Money market deposit accounts	1,382,028		20	%	1,274,525		20	%	1,168,918		21	%	931,370		18	%	873,562		18	%
Certificate accounts	1,060,650		15	%	1,167,228		18	%	1,116,622		20	%	1,015,491		19	%	1,080,917		22	%
Wholesale deposits	229,720		3	%	249,212		4	%	205,132		3	%	757,874		14	%	608,035		13	%
Total interest bearing deposits	5,026,698		72	%	4,712,809		74	%	4,205,548		75	%	4,172,528		78	%	3,810,314		79	%
Total deposits	$	6,945,008	100	%	$	6,345,212	100	%	$	5,579,967	100	%	$	5,364,461	100	%	$	4,821,213	100	%

The following table summarizes the amounts outstanding at December 31, 2015 for deposits of $100,000 and greater, according to the time remaining to maturity. Included in demand deposits are brokered deposits of $229 million.

(Dollars in thousands)	Certificates of Deposit		Demand Deposits	Total
Within three months	$	141,222	3,683,232	3,824,454
Three months to six months	143,347		—	143,347
Seven months to twelve months	154,267		—	154,267
Over twelve months	143,492		—	143,492
Total	$	582,328	3,683,232	4,265,560

For additional information on deposits, see Note 7 to the Consolidated Financial Statements in “Item 8. Financial Statements and Supplementary Data.”

48

Securities Sold Under Agreements to Repurchase, Federal Home Loan Bank Advances and Other Borrowings

The Company borrows money through repurchase agreements. This process involves the selling of one or more of the securities in the Company’s investment portfolio and simultaneously entering into an agreement to repurchase that same securities at an agreed upon later date, typically overnight. A rate of interest is paid for the agreed period of time. Through a policy adopted by the Bank’s Board of Directors, the Bank enters into repurchase agreements with local municipalities, and certain customers, and has adopted procedures designed to ensure proper transfer of title and safekeeping of the underlying securities. In addition to retail repurchase agreements, the Company enters into wholesale repurchase agreements as additional funding sources. The Company has not entered into reverse repurchase agreements.

The Bank is a member of the FHLB of Des Moines, which is one of eleven banks that comprise the FHLB system.  The Bank is required to maintain a certain level of activity-based stock in order to borrow or to engage in other transactions with the FHLB of Des Moines. Additionally, the Bank is subject to a membership capital stock requirement that is based upon an annual calibration tied to the total assets of the Bank. The borrowings are collateralized by eligible categories of loans and investment securities (principally, securities which are obligations of, or guaranteed by, the U.S. government and its agencies), provided certain standards related to credit-worthiness have been met. Advances are made pursuant to several different credit programs, each of which has its own interest rates and range of maturities. The Bank’s maximum amount of FHLB advances is limited to the lesser of a fixed percentage of the Bank’s total assets or the discounted value of eligible collateral. FHLB advances fluctuate to meet seasonal and other withdrawals of deposits and to expand lending or investment opportunities of the Company.

Additionally, the Company has other sources of secured and unsecured borrowing lines from various sources that may be used from time to time.

For additional information concerning the Company’s borrowings, see Note 8 to the Consolidated Financial Statements in “Item 8. Financial Statements and Supplementary Data.”

Short-term borrowings

A critical component of the Company’s liquidity and capital resources is access to short-term borrowings to fund its operations. Short-term borrowings are accompanied by increased risks managed by the Bank’s Asset Liability Committee (“ALCO”) such as rate increases or unfavorable change in terms which would make it more costly to obtain future short-term borrowings. The Company’s short-term borrowing sources include FHLB advances, federal funds purchased and retail and wholesale repurchase agreements. The Company also has access to the short-term discount window borrowing programs (i.e., primary credit) of the Federal Reserve Bank (“FRB”). FHLB advances and certain other short-term borrowings may be renewed as long-term borrowings to decrease certain risks such as liquidity or interest rate risk; however, the reduction in risks are weighed against the increased cost of funds and other risks.

49

The following table provides information relating to short-term borrowings which consists of borrowings that mature within one year of period end: 

	At or for the Years ended
(Dollars in thousands)	December 31, 2015			December 31, 2014		December 31, 2013
Repurchase agreements
Amount outstanding at end of period	$	423,414		397,107		313,394
Weighted interest rate on outstanding amount	0.31		%	0.27	%	0.28	%
Maximum outstanding at any month end	$	441,041		397,107		326,184
Average balance	$	376,983		317,745		295,004
Weighted-average interest rate	0.27		%	0.27	%	0.29	%
FHLB advances
Amount outstanding at end of period	$	185,091		93,979		559,084
Weighted interest rate on outstanding amount	1.02		%	2.81	%	0.24	%
Maximum outstanding at any month end	$	185,091		618,084		939,109
Average balance	$	107,341		295,422		693,225
Weighted-average interest rate	3.06		%	0.24	%	0.25	%

Subordinated Debentures

In addition to funds obtained in the ordinary course of business, the Company formed or acquired financing subsidiaries for the purpose of issuing trust preferred securities that entitle the investor to receive cumulative cash distributions thereon. The subordinated debentures outstanding as of December 31, 2015 were $126 million, including fair value adjustments from prior acquisitions. For additional information regarding the subordinated debentures, see Note 9 to the Consolidated Financial Statements in “Item 8. Financial Statements and Supplementary Data.”

Contractual Obligations and Off-Balance Sheet Arrangements

In the normal course of business, there may be various outstanding commitments to obtain funding and to extend credit, such as letters of credit and un-advanced loan commitments, which are not reflected in the accompanying condensed consolidated financial statements. The Company does not anticipate any material losses as a result of these transactions. For the schedules of outstanding commitments, see Note 21 to the Consolidated Financial Statements in “Item 8. Financial Statements and Supplementary Data.”

The following table represents the Company’s contractual obligations as of December 31, 2015:

			Payments Due by Period
(Dollars in thousands)	Total		Indeter-minate Maturity 1	2016	2017	2018	2019	2020	Thereafter
Deposits	$	6,945,008	5,884,358	775,227	149,999	56,554	40,696	36,674	1,500
Repurchase agreements	423,414		—	423,414	—	—	—	—	—
FHLB advances	394,131		—	185,091	179	70,597	167	945	137,152
Other borrowed funds	6,195		—	4	147	197	199	200	5,448
Subordinated debentures	125,848		—	—	—	—	—	—	125,848
Capital lease obligations	471		—	92	92	92	92	92	11
Operating lease obligations	12,496		—	2,443	2,132	1,877	1,682	1,160	3,202
Total	$	7,907,563	5,884,358	1,386,271	152,549	129,317	42,836	39,071	273,161

__________

¹ Represents non-interest bearing deposits and NOW, savings, and money market accounts.

50

Liquidity Risk

Liquidity risk is the possibility that the Company will not be able to fund present and future obligations as they come due because of an inability to liquidate assets or obtain adequate funding at a reasonable cost. The objective of liquidity management is to maintain cash flows adequate to meet current and future needs for credit demand, deposit withdrawals, maturing liabilities and corporate operating expenses. Effective liquidity management entails three elements:

1. Assessing on an ongoing basis, the current and expected future needs for funds, and ensuring that sufficient funds or access to funds exist to meet those needs at the appropriate time;

2. Providing for an adequate cushion of liquidity to meet unanticipated cash flow needs that may arise from potential adverse circumstances ranging from high probability/low severity events to low probability/high severity; and

3. Balancing the benefits between providing for adequate liquidity to mitigate potential adverse events and the cost of that liquidity.

The Company has a wide range of versatility in managing the liquidity and asset/liability mix. The Bank’s ALCO meets regularly to assess liquidity risk, among other matters. The Company monitors liquidity and contingency funding alternatives through management reports of liquid assets (e.g., investment securities), both unencumbered and pledged, as well as borrowing capacity, both secured and unsecured, including off-balance sheet funding sources. The Company evaluates its potential funding needs across alternative scenarios and maintains contingency funding plans consistent with the Company’s access to diversified sources of contingent funding.

The following table identifies certain liquidity sources and capacity available to the Company as of the dates indicated:

(Dollars in thousands)	December 31, 2015			December 31, 2014
FHLB advances
Borrowing capacity	$	1,494,288		1,371,940
Amount utilized	(394,131		)	(296,944	)
Amount available	$	1,100,157		1,074,996
FRB discount window
Borrowing capacity	$	945,948		815,506
Amount utilized	—			—
Amount available	$	945,948		815,506
Unsecured lines of credit available	$	255,000		255,000
Unencumbered investment securities
U.S. government and federal agency	$	47,451		44
U.S. government sponsored enterprises	75,419			15,066
State and local governments	880,866			850,193
Corporate bonds	48,528			183,490
Residential mortgage-backed securities	435,749			186,369
Total unencumbered securities	$	1,488,013		1,235,162

51

Capital Resources

Maintaining capital strength continues to be a long-term objective of the Company. Abundant capital is necessary to sustain growth, provide protection against unanticipated declines in asset values, and to safeguard the funds of depositors. Capital is also a source of funds for loan demand and enables the Company to effectively manage its assets and liabilities. The Company has the capacity to issue 117,187,500 shares of common stock of which 76,086,288 have been issued as of December 31, 2015. The Company also has the capacity to issue 1,000,000 shares of preferred stock of which none have been issued as of December 31, 2015. Conversely, the Company may decide to utilize a portion of its strong capital position, as it has done in the past, to repurchase shares of its outstanding common stock, depending on market price and other relevant considerations.

The Federal Reserve has adopted capital adequacy guidelines that are used to assess the adequacy of capital in supervising a bank holding company. In July 2013, the federal banking agencies approved the Final Rules to establish a new comprehensive regulatory capital framework with a phase-in period beginning on January 1, 2015 and ending on January 1, 2019. The Final Rules implement the Basel III regulatory capital reforms and changes required by the Dodd-Frank Act and substantially amend the regulatory risk-based capital rules applicable to the Company. Basel III redefines the regulatory capital elements and minimum capital ratios, introduces regulatory capital buffers above those minimums, revises rules for calculating risk-weighted assets and adds a new component of Tier 1 capital called Common Equity Tier 1, which includes common equity and retained earnings and excludes preferred equity.

The following table illustrates the Bank’s regulatory ratios and the Federal Reserve’s current capital adequacy guidelines as of December 31, 2015. The Federal Reserve’s fully phased-in guidelines applicable in 2019 are also summarized.

	Total Capital (To Risk-Weighted Assets)		Tier 1 Capital (To Risk-Weighted Assets)		Common Equity Tier 1 (To Risk-Weighted Assets)		Leverage Ratio/ Tier 1 Capital (To Average Assets)
Glacier Bank’s actual regulatory ratios	16.66	%	15.40	%	15.40	%	11.66	%
Minimum capital requirements	8.00	%	6.00	%	4.50	%	4.00	%
Well capitalized requirements	10.00	%	8.00	%	6.50	%	5.00	%
Minimum capital requirements, including fully-phased in capital conservation buffer (2019)	10.50	%	8.50	%	7.00	%	N/A

The Company has evaluated the impact of the Final Rules and believes that, as of December 31, 2015, the Company would meet all capital adequacy requirements under the Basel III capital rules on a fully phased-in basis as if all such requirements were currently in effect. There are no conditions or events since December 31, 2015 that management believes have changed the Company’s or the Bank’s risk-based capital category.

For additional information regarding regulatory capital, see Note 11 to the Consolidated Financial Statements in “Item 8. Financial Statements and Supplementary Data.”

52

Federal and State Income Taxes

The Company files a consolidated federal income tax return using the accrual method of accounting. All required tax returns have been timely filed. Financial institutions are subject to the provisions of the Internal Revenue Code of 1986, as amended, in the same general manner as other corporations.

Under Montana, Idaho, Colorado and Utah law, financial institutions are subject to a corporation income tax, which incorporates or is substantially similar to applicable provisions of the Internal Revenue Code. The corporation income tax is imposed on federal taxable income, subject to certain adjustments. State taxes are incurred at the rate of 6.75 percent in Montana, 7.4 percent in Idaho, 5 percent in Utah and 4.63 percent in Colorado. Wyoming and Washington do not impose a corporate income tax.

Income tax expense for the years ended December 31, 2015 and 2014 was $34.0 million and $35.9 million, respectively. The Company’s effective tax rate for the years ended December 31, 2015 and 2014 was 22.6 percent and 24.2 percent, respectively. The primary reason for the current and prior year’s low effective tax rate is the amount of tax-exempt investment income and federal income tax credits. Tax-exempt investment income was $50.9 million and $47.1 million for the years ended December 31, 2015 and 2014, respectively. The benefits from federal income tax credits were $4.2 million and $3.9 million for the years ended December 31, 2015 and 2014, respectively.

The Company has equity investments in Certified Development Entities (“CDE”) which have received allocations of New Markets Tax Credits (“NMTC”). Administered by the Community Development Financial Institutions Fund (“CDFI Fund”) of the U.S. Department of the Treasury, the NMTC program is aimed at stimulating economic and community development and job creation in low-income communities. The federal income tax credits received are claimed over a seven-year credit allowance period. The Company also has equity investments in Low Income Housing Tax Credits (“LIHTC”) which are indirect federal subsidies used to finance the development of affordable rental housing for low-income households. The federal income tax credits are claimed over a ten-year credit allowance period. The Company has investments of $23.3 million in Qualified Zone Academy and Qualified School Construction bonds whereby the Company receives quarterly federal income tax credits in lieu of taxable interest income. The federal income tax credits on these investment securities are subject to federal and state income tax.

Following is a list of expected federal income tax credits to be received in the years indicated.

(Dollars in thousands)	New Markets Tax Credits		Low-Income Housing Tax Credits	Investment Securities Tax Credits	Total
2016	$	1,654	1,175	863	3,692
2017	1,090		1,507	786	3,383
2018	768		1,629	709	3,106
2019	768		1,629	660	3,057
2020	768		1,502	611	2,881
Thereafter	768		3,561	2,494	6,823
	$	5,816	11,003	6,123	22,942

See Note 15 to the Consolidated Financial Statements in “Item 8. Financial Statements and Supplementary Data” for additional information.

Average Balance Sheet

The following schedule provides 1) the total dollar amount of interest and dividend income of the Company for earning assets and the average yields; 2) the total dollar amount of interest expense on interest bearing liabilities and the average rates; 3) net interest and dividend income and interest rate spread; and 4) net interest margin (tax-equivalent).

53

	Years ended
	December 31, 2015						December 31, 2014						December 31, 2013
(Dollars in thousands)	Average Balance		Interest & Dividends		Average Yield/ Rate		Average Balance		Interest & Dividends		Average Yield/ Rate		Average Balance		Interest & Dividends		Average Yield/ Rate
Assets
Residential real estate loans	$	687,013	$	32,153	4.68	%	$	635,256	$	30,721	4.84	%	$	623,433	$	29,525	4.74	%
Commercial loans 1	3,459,470		167,587		4.84	%	3,029,733		145,631		4.81	%	2,542,255		127,450		5.01	%
Consumer and other loans	631,512		31,476		4.98	%	588,452		30,515		5.19	%	586,649		32,089		5.47	%
Total loans 2	4,777,995		231,216		4.84	%	4,253,441		206,867		4.86	%	3,752,337		189,064		5.04	%
Tax-exempt investment securities 3	1,328,908		77,199		5.81	%	1,208,970		68,643		5.68	%	1,064,457		61,924		5.82	%
Taxable investment securities 4	1,918,283		41,648		2.17	%	1,974,049		47,407		2.40	%	2,525,317		33,112		1.31	%
Total earning assets	8,025,186		350,063		4.36	%	7,436,460		322,917		4.34	%	7,342,111		284,100		3.87	%
Goodwill and intangibles	143,293						138,928						125,315
Non-earning assets	389,126						347,138						338,866
Total assets	$	8,557,605					$	7,922,526					$	7,806,292
Liabilities
Non-interest bearing deposits	$	1,756,888	$	—	—	%	$	1,463,689	$	—	—	%	$	1,244,332	$	—	—	%
NOW accounts	1,371,340		1,074		0.08	%	1,141,424		1,148		0.10	%	999,288		1,217		0.12	%
Savings accounts	758,776		360		0.05	%	660,465		340		0.05	%	540,495		276		0.05	%
Money market deposit accounts	1,340,967		2,066		0.15	%	1,215,163		2,382		0.20	%	1,075,625		2,169		0.20	%
Certificate accounts	1,131,210		6,891		0.61	%	1,144,485		7,858		0.69	%	1,114,010		9,039		0.81	%
Wholesale deposits 5	206,889		5,747		2.78	%	193,514		1,467		0.76	%	434,249		1,169		0.27	%
FHLB advances	319,565		8,841		2.73	%	573,607		9,570		1.65	%	971,554		10,610		1.09	%
Repurchase agreements, federal funds purchased and other borrowed funds	509,431		4,296		0.84	%	451,458		4,201		0.93	%	431,046		4,278		0.99	%
Total interest bearing liabilities	7,395,066		29,275		0.40	%	6,843,805		26,966		0.39	%	6,810,599		28,758		0.42	%
Other liabilities	91,360						63,630						59,497
Total liabilities	7,486,426						6,907,435						6,870,096
Stockholders’ Equity
Common stock	755						746						732
Paid-in capital	720,827						697,344						667,107
Retained earnings	336,998						297,303						239,138
Accumulated other comprehensive income	12,599						19,698						29,219
Total stockholders’ equity	1,071,179						1,015,091						936,196
Total liabilities and stockholders’ equity	$	8,557,605					$	7,922,526					$	7,806,292
Net interest income (tax-equivalent)			$	320,788					$	295,951					$	255,342
Net interest spread (tax-equivalent)					3.96	%					3.95	%					3.45	%
Net interest margin (tax-equivalent)					4.00	%					3.98	%					3.48	%

__________

¹  Includes tax effect of $2.6 million on tax-exempt municipal loan and lease income for the year ended December 31, 2015. The tax effect for the years ended December 31, 2014 and 2013 was not significant.

²  Total loans are gross of the allowance for loan and lease losses, net of unearned income and include loans held for sale. Non-accrual loans were included in the average volume for the entire period.

³  Includes tax effect of $26.3 million, $21.5 million and $19.0 million on tax-exempt investment securities income for the years ended December 31, 2015, 2014 and 2013, respectively.

⁴  Includes tax effect of $1.4 million on federal income tax credits for the years ended December 31, 2015, 2014 and 2013.

⁵  Wholesale deposits include brokered deposits classified as NOW, money market deposit and certificate accounts.

54

Rate/Volume Analysis

Net interest income can be evaluated from the perspective of relative dollars of change in each period. Interest income and interest expense, which are the components of net interest income, are shown in the following table on the basis of the amount of any increases (or decreases) attributable to changes in the dollar levels of the Company’s interest earning assets and interest bearing liabilities (“volume”) and the yields earned and paid on such assets and liabilities (“rate”). The change in interest income and interest expense attributable to changes in both volume and rates has been allocated proportionately to the change due to volume and the change due to rate.

	Year ended December 31,							Year ended December 31,
	2015 vs. 2014							2014 vs. 2013
	Increase (Decrease) Due to:							Increase (Decrease) Due to:
(Dollars in thousands)	Volume			Rate		Net		Volume		Rate		Net
Interest income
Residential real estate loans	$	2,503		(1,071	)	1,432		560		636		1,196
Commercial loans (tax-equivalent)	20,656			1,300		21,956		24,439		(6,258	)	18,181
Consumer and other loans	2,233			(1,272	)	961		98		(1,672	)	(1,574	)
Investment securities (tax-equivalent)	2,340			457		2,797		(10,769	)	31,783		21,014
Total interest income	27,732			(586	)	27,146		14,328		24,489		38,817
Interest expense
NOW accounts	232			(306	)	(74	)	173		(241	)	(68	)
Savings accounts	51			(31	)	20		61		3		64
Money market deposit accounts	246			(562	)	(316	)	281		(69	)	212
Certificate accounts	(91		)	(876	)	(967	)	247		(1,428	)	(1,181	)
Wholesale deposits	101			4,179		4,280		(648	)	946		298
FHLB advances	(4,238		)	3,509		(729	)	(4,346	)	3,306		(1,040	)
Repurchase agreements, federal funds purchased and other borrowed funds	539			(444	)	95		203		(280	)	(77	)
Total interest expense	(3,160		)	5,469		2,309		(4,029	)	2,237		(1,792	)
Net interest income (tax-equivalent)	$	30,892		(6,055	)	24,837		18,357		22,252		40,609

Net interest income (tax-equivalent) increased $24.8 million for the year ended December 31, 2015 compared to the same period in 2014. The increase in current year interest income primarily resulted from increased growth of the Company’s commercial loan portfolio. The increase in interest expense was driven by interest expense associated with delayed start interest rate swaps (i.e., 3 - 3.5 years) the Company previously entered into. The Company had an interest rate swap with a notional amount of $160 million start interest accruals in October 2014 and an interest rate swap with a notional amount of $100 million start interest accruals in November 2015. The increase in interest expense from higher rates on FHLB advances was the result of a decrease in short-term FHLB advances leaving a minimal amount of long-term higher rate FHLB advances.

Net interest income (tax-equivalent) increased $40.6 million during 2014 compared to 2013. The increase in net interest income primarily resulted from higher yielding investment securities due to a significant decrease in premium amortization and the growth of the Company’s commercial loan portfolio. The decrease in interest expense was driven by lower yields on certificate accounts and lower volume of FHLB advances as a result of the continued increase in deposits.

55

Effect of inflation and changing prices

GAAP often requires the measurement of financial position and operating results in terms of historical dollars, without consideration for change in relative purchasing power over time due to inflation. Virtually all assets of the Company are monetary in nature; therefore, interest rates generally have a more significant impact on a company’s performance than does the effect of inflation.

Critical Accounting Policies

The preparation of consolidated financial statements in conformity with GAAP often requires management to use significant judgments as well as subjective and/or complex measurements in making estimates and assumptions that affect the reported amounts of assets, liabilities, income and expenses. The Company considers its accounting policies for the ALLL, goodwill and fair value measurements to be critical accounting policies. The application of these policies has a significant impact on the Company’s consolidated financial statements and financial results could differ significantly if different judgments or estimates were to be applied.

Allowance for Loan and Lease Losses

For information regarding the ALLL, its relation to the provision for loan losses and risk related to asset quality, see the section captioned “Allowance for Loan and Lease Losses” included in “Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations” and Notes 1 and 3 to the Consolidated Financial Statements in “Item 8. Financial Statements and Supplementary Data.”

Goodwill

For information on goodwill, see Notes 1 and 5 to the Consolidated Financial Statements in “Item 8. Financial Statements and Supplementary Data.”

Fair Value Measurements

For information on fair value measurements, see Note 20 to the Consolidated Financial Statements in “Item 8. Financial Statements and Supplementary Data.”

Impact of Recently Issued Accounting Standards

New authoritative accounting guidance that has either been issued or is effective during 2015 or 2014 and may possibly have a material impact on the Company includes amendments to:

• Financial Accounting Standards Board (“FASB”) Accounting Standards Codification^TM (“ASC”) Subtopic 310-40, Receivables - Troubled Debt Restructurings by Creditors;

• FASB ASC Topic 323, Investments - Equity Method and Joint Ventures;

• FASB ASC Topic 606, Revenue from Contracts with Customers;

• FASB ASC Topic 860, Transfers and Servicing;

• FASB ASC Topic 805, Business Combinations;

• FASB ASC Topic 810, Consolidation; and

• FASB ASC Topic 825, Financial Instruments.

For additional information on the topics and the impact on the Company see Note 1 to the Consolidated Financial Statements in “Item 8. Financial Statements and Supplementary Data.”

56

Item 7A. Quantitative and Qualitative Disclosures about Market Risk

The disclosures set forth in this item are qualified by the section captioned “Forward-Looking Statements” included in “Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations.” Market risk is the risk of loss in a financial instrument arising from adverse changes in market rates/prices such as interest rates, foreign currency exchange rates, commodity prices, and equity prices. The Company’s primary market risk exposure is interest rate risk.

Interest Rate Risk

Interest rate risk is the potential for loss of future earnings resulting from adverse changes in the level of interest rates. Interest rate risk results from many factors and could have a significant impact on the Company’s net interest income, which is the Company primary source of net income. Net interest income is affected by changes in interest rates, the relationship between rates on interest bearing assets and liabilities, the impact of the interest fluctuations on asset prepayments and the mix of interest bearing assets and liabilities.

Although interest rate risk is inherent in the banking industry, banks are expected to have sound risk management practices in place to measure, monitor and control interest rate exposures. The objective of interest rate risk management is to contain the risks associated with interest rate fluctuations. The process involves identification and management of the sensitivity of net interest income to changing interest rates. Managing interest rate risk is not an exact science. The interval between repricing of interest rates of assets and liabilities changes from day to day as the assets and liabilities change.

The ongoing monitoring and management of this risk is an important component of the Company’s asset/liability management process which is governed by policies established by the Company’s Board that are reviewed and approved annually. The Board delegates responsibility for carrying out the asset/liability management policies to the Bank’s ALCO. In this capacity, the ALCO develops guidelines and strategies impacting the Company’s asset/liability management related activities based upon estimated market risk sensitivity, policy limits and overall market interest rate levels and trends. The Company’s goal of its asset and liability management practices is to maintain or increase the level of net interest income within an acceptable level of interest rate risk.

In addition to the risk management practices previously described, the Company has entered into forecasted interest rate swap derivative financial instruments to hedge various interest rate exposures. For more information on the Company’s interest rate swaps, see Note 10 to the Consolidated Financial Statements in “Item 8. Financial Statements and Supplementary Data.”

Net interest income simulation

The Company uses a detailed and dynamic simulation model to quantify the estimated exposure of net interest income (“NII”) to sustained interest rate changes. While ALCO routinely monitors simulated NII sensitivity over rolling two-year and five-year horizons, it also utilizes additional tools to monitor potential longer-term interest rate risk. The simulation model captures the impact of changing interest rates on the interest income received and interest expense paid on all assets and liabilities reflected on the Company’s statements of financial condition. This sensitivity analysis is compared to ALCO policy limits which specify a maximum tolerance level for NII exposure over a one year and two year horizon, assuming no balance sheet growth. The ALCO policy rate scenarios include upward and downward shifts in interest rates for 100 basis points (“bps”), 200 bps, 300 bps, and 400 bps scenarios with instantaneous and parallel changes in current market yield curves. The ALCO policy also includes 200 bps and 400 bps rate scenarios with gradual parallel shifts in interest rates over 12-month and 24-month periods, respectively. Given the historically low rate environment, a downward shift in interest rates of only 100 bps is modeled. Since the model assumes that interest rates will not be negative, the 100 bps scenario represents a flattening of market yield curves. Other non-parallel rate movement scenarios are also modeled to determine the potential impact on net interest income. The additional scenarios are adjusted as the economic environment changes and provide ALCO additional interest rate risk monitoring tools to evaluate current market conditions.

57

The following is indicative of the Company’s overall NII sensitivity analysis as of December 31, 2015 as compared to the ALCO policy limits approved by the Company’s Board. The Company’s interest sensitivity remained within policy limits at December 31, 2015. 

	Year 1				Year 2
Rate Scenarios	Policy Limits		Estimated Sensitivity		Policy Limits		Estimated Sensitivity
-100 bps Rate shock	(10.0	)%	(4.0	)%	(15.0	)%	(6.5	)%
+100 bps Rate shock	(10.0	)%	(0.6	)%	(15.0	)%	1.4	%
+200 bps Rate shock	(10.0	)%	0.2	%	(15.0	)%	3.8	%
+200 bps Rate ramp	(10.0	)%	0.9	%	(15.0	)%	2.4	%
+300 bps Rate shock	(20.0	)%	(0.7	)%	(20.0	)%	4.6	%
+400 bps Rate shock	(20.0	)%	(2.5	)%	(20.0	)%	4.5	%
+400 bps Rate ramp	(10.0	)%	2.9	%	(20.0	)%	2.5	%

The preceding sensitivity analysis does not represent a forecast and should not be relied upon as being indicative of expected operating results. These hypothetical estimates are based upon numerous assumptions including: the nature and timing of interest rate levels including, but not limited to, yield curve shape, prepayments on loans and securities, deposit decay rates, pricing decisions on loans and deposits and reinvestment/replacement of assets and liability cash flows. While assumptions are developed based upon current economic and local market conditions, the Company cannot make any assurances as to the predictive nature of these assumptions including how customer preferences or competitor influences might change. Also, as market conditions vary from those assumed in the sensitivity analysis, actual results will also differ due to prepayment/refinancing levels likely deviating from those assumed, the varying impact of interest rate change caps or floors on adjustable rate assets, the potential effect of changing debt service levels on customers with adjustable rate loans, depositor early withdrawals and product preference changes, and other internal and external variables. Furthermore, the sensitivity analysis does not reflect actions that ALCO might take in responding to or anticipating changes in interest rates.

Economic value of equity

In addition to the NII analyses, the Company calculates the economic value of equity (“EVE”) which focuses on longer term interest rate risk. The EVE process models the cash flow of financial instruments to maturity and then discounts those cashflows based on prevailing interest rates in order to develop a baseline EVE. The interest rates used in the model are then shocked for an immediate increase and decrease in interest rates. The results for the shocked model are compared to the baseline results to determine the percentage change in EVE under the various scenarios. The resulting percentage change in the EVE is an indication of the longer term re-pricing risk and option risks embedded in the balance sheet. The measure is not designed to estimate the Company’s capital levels, such as tangible, regulatory, or market capitalization.

The following reflects the Company’s EVE maximum sensitivity policy limits and EVE analysis as of December 31, 2015:

Rate Scenarios	Policy Limits		Post Shock Ratio
-100 bps Rate shock	(10.0	)%	(5.4	)%
+100 bps Rate shock	(10.0	)%	(3.1	)%
+200 bps Rate shock	(20.0	)%	(8.6	)%
+300 bps Rate shock	(30.0	)%	(15.0	)%
+400 bps Rate shock	(40.0	)%	(21.6	)%

Item 8. Financial Statements and Supplementary Data

58

Report of Independent Registered Public Accounting Firm

Audit Committee, Board of Directors and Stockholders

Glacier Bancorp, Inc.

Kalispell, Montana

We have audited the accompanying consolidated statements of financial condition of Glacier Bancorp, Inc. as of December 31, 2015 and 2014, and the related consolidated statements of operations, comprehensive income, changes in stockholders’ equity and cash flows for each of the years in the three-year period ended December 31, 2015. The Company’s management is responsible for these financial statements. Our responsibility is to express an opinion on these financial statements based on our audits.

We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audits to obtain reasonable assurance about whether the financial statements are free of material misstatement. Our audits included examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements, assessing the accounting principles used and significant estimates made by management and evaluating the overall financial statement presentation. We believe that our audits provide a reasonable basis for our opinion.

In our opinion, the consolidated financial statements referred to above present fairly, in all material respects, the financial position of Glacier Bancorp, Inc. as of December 31, 2015, and 2014, and the results of its operations and its cash flows for each of the years in the three-year period ended December 31, 2015, in conformity with accounting principles generally accepted in the United States of America.

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States), Glacier Bancorp, Inc.’s internal control over financial reporting as of December 31, 2015, based on criteria established in Internal Control-Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO) and our report dated February 25, 2016, expressed an unqualified opinion on the effectiveness of the Company’s internal control over financial reporting.

/s/ BKD, LLP

Denver, Colorado

February 25, 2016

59

Report of Independent Registered Public Accounting Firm

Audit Committee, Board of Directors and Stockholders

Glacier Bancorp, Inc.

Kalispell, Montana

We have audited Glacier Bancorp, Inc.’s internal control over financial reporting as of December 31, 2015, based on criteria established in Internal Control - Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO). The Company’s management is responsible for maintaining effective internal control over financial reporting and for its assessment of the effectiveness of internal control over financial reporting, included in the accompanying Management’s Report on Internal Control Over Financial Reporting. Our responsibility is to express an opinion on the Company’s internal control over financial reporting based on our audit.

We conducted our audit in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether effective internal control over financial reporting was maintained in all material respects. Our audit included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists and testing and evaluating the design and operating effectiveness of internal control based on the assessed risk. Our audit also included performing such other procedures as we considered necessary in the circumstances. We believe that our audit provides a reasonable basis for our opinion.

A company's internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company's internal control over financial reporting includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (3) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use or disposition of the company's assets that could have a material effect on the financial statements.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the

60

Audit Committee, Board of Directors and Stockholders

Glacier Bancorp, Inc.

risk that controls may become inadequate because of changes in conditions or that the degree of compliance with the policies or procedures may deteriorate.

In our opinion, Glacier Bancorp, Inc. maintained, in all material respects, effective internal control over financial reporting as of December 31, 2015, based on criteria established in Internal Control - Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO).

We have also audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States), the consolidated financial statements of Glacier Bancorp, Inc. and our report dated February 25, 2016, expressed an unqualified opinion thereon.

/s/ BKD, LLP

Denver, Colorado

February 25, 2016

61

GLACIER BANCORP, INC.

CONSOLIDATED STATEMENTS OF FINANCIAL CONDITION

(Dollars in thousands, except per share data)	December 31, 2015			December 31, 2014
Assets
Cash on hand and in banks	$	117,137		122,834
Federal funds sold	6,080			1,025
Interest bearing cash deposits	70,036			318,550
Cash and cash equivalents	193,253			442,409
Investment securities, available-for-sale	2,610,760			2,387,428
Investment securities, held-to-maturity	702,072			520,997
Total investment securities	3,312,832			2,908,425
Loans held for sale	56,514			46,726
Loans receivable	5,078,681			4,488,095
Allowance for loan and lease losses	(129,697		)	(129,753	)
Loans receivable, net	4,948,984			4,358,342
Premises and equipment, net	194,030			179,175
Other real estate owned	26,815			27,804
Accrued interest receivable	44,524			40,587
Deferred tax asset	58,475			41,737
Core deposit intangible, net	14,555			10,900
Goodwill	140,638			129,706
Non-marketable equity securities	27,495			52,868
Other assets	71,117			67,828
Total assets	$	9,089,232		8,306,507
Liabilities
Non-interest bearing deposits	$	1,918,310		1,632,403
Interest bearing deposits	5,026,698			4,712,809
Securities sold under agreements to repurchase	423,414			397,107
Federal Home Loan Bank advances	394,131			296,944
Other borrowed funds	6,602			7,311
Subordinated debentures	125,848			125,705
Accrued interest payable	3,517			4,155
Other liabilities	114,062			102,026
Total liabilities	8,012,582			7,278,460
Stockholders’ Equity
Preferred shares, $0.01 par value per share, 1,000,000 shares authorized, none issued or outstanding	—			—
Common stock, $0.01 par value per share, 117,187,500 shares authorized	761			750
Paid-in capital	736,368			708,356
Retained earnings - substantially restricted	337,532			301,197
Accumulated other comprehensive income	1,989			17,744
Total stockholders’ equity	1,076,650			1,028,047
Total liabilities and stockholders’ equity	$	9,089,232		8,306,507
Number of common stock shares issued and outstanding	76,086,288			75,026,092

See accompanying notes to consolidated financial statements.

62

GLACIER BANCORP, INC.

CONSOLIDATED STATEMENTS OF OPERATIONS

	Years ended
(Dollars in thousands, except per share data)	December 31, 2015		December 31, 2014		December 31, 2013
Interest Income
Investment securities	$	91,086	93,052		74,512
Residential real estate loans	32,153		30,721		29,525
Commercial loans	164,966		145,631		127,450
Consumer and other loans	31,476		30,515		32,089
Total interest income	319,681		299,919		263,576
Interest Expense
Deposits	16,138		13,195		13,870
Securities sold under agreements to repurchase	1,021		865		867
Federal Home Loan Bank advances	8,841		9,570		10,610
Federal funds purchased and other borrowed funds	81		199		206
Subordinated debentures	3,194		3,137		3,205
Total interest expense	29,275		26,966		28,758
Net Interest Income	290,406		272,953		234,818
Provision for loan losses	2,284		1,912		6,887
Net interest income after provision for loan losses	288,122		271,041		227,931
Non-Interest Income
Service charges and other fees	57,321		54,089		49,478
Miscellaneous loan fees and charges	4,276		4,696		4,982
Gain on sale of loans	26,389		19,797		28,517
Gain (loss) on sale of investments	19		(188	)	(299	)
Other income	10,756		11,908		10,369
Total non-interest income	98,761		90,302		93,047
Non-Interest Expense
Compensation and employee benefits	134,409		118,571		104,221
Occupancy and equipment	31,149		27,498		24,875
Advertising and promotions	8,661		7,912		6,913
Data processing	5,833		6,607		4,493
Other real estate owned	3,693		2,568		7,196
Regulatory assessments and insurance	5,283		5,064		6,362
Core deposit intangible amortization	2,964		2,811		2,401
Other expenses	44,765		41,648		38,856
Total non-interest expense	236,757		212,679		195,317
Income Before Income Taxes	150,126		148,664		125,661
Federal and state income tax expense	33,999		35,909		30,017
Net Income	$	116,127	112,755		95,644
Basic earnings per share	$	1.54	1.51		1.31
Diluted earnings per share	$	1.54	1.51		1.31
Dividends declared per share	$	1.05	0.98		0.60
Average outstanding shares - basic	75,542,455		74,641,957		73,191,713
Average outstanding shares - diluted	75,595,581		74,687,315		73,260,278

See accompanying notes to consolidated financial statements.

63

GLACIER BANCORP, INC.

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

	Years ended
(Dollars in thousands)	December 31, 2015			December 31, 2014		December 31, 2013
Net Income	$	116,127		112,755		95,644
Other Comprehensive (Loss) Income, Net of Tax
Unrealized (losses) gains on available-for-sale securities	(22,845		)	31,569		(81,739	)
Reclassification adjustment for (gains) losses included in net income	(69		)	204		299
Net unrealized (losses) gains on available-for-sale securities	(22,914		)	31,773		(81,440	)
Tax effect	8,904			(12,313	)	31,680
Net of tax amount	(14,010		)	19,460		(49,760	)
Unrealized (losses) gains on derivatives used for cash flow hedges	(7,857		)	(19,557	)	18,728
Reclassification adjustment for losses included in net income	5,025			993		—
Net unrealized (losses) gains on derivatives used for cash flow hedges	(2,832		)	(18,564	)	18,728
Tax effect	1,087			7,203		(7,285	)
Net of tax amount	(1,745		)	(11,361	)	11,443
Total other comprehensive (loss) income, net of tax	(15,755		)	8,099		(38,317	)
Total Comprehensive Income	$	100,372		120,854		57,327

See accompanying notes to consolidated financial statements.

64

GLACIER BANCORP, INC.

CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS’ EQUITY

Years ended December 31, 2015, 2014 and 2013

(Dollars in thousands, except per share data)	Common Stock			Paid-in Capital		Retained Earnings Substantially Restricted		Accumulated Other Comp-rehensive Income
	Shares	Amount								Total
Balance at December 31, 2012	71,937,222	$	719	641,737		210,531		47,962		900,949
Comprehensive income	—	—		—		95,644		(38,317	)	57,327
Cash dividends declared ($0.60 per share)	—	—		—		(44,232	)	—		(44,232	)
Stock issuances under stock incentive plans	292,942	3		4,504		—		—		4,507
Stock issued in connection with acquisitions	2,143,132	22		45,011		—		—		45,033
Stock-based compensation and related taxes	—	—		(334	)	—		—		(334	)
Balance at December 31, 2013	74,373,296	$	744	690,918		261,943		9,645		963,250
Comprehensive income	—	—		—		112,755		8,099		120,854
Cash dividends declared ($0.98 per share)	—	—		—		(73,501	)	—		(73,501	)
Stock issuances under stock incentive plans	97,064	1		783		—		—		784
Stock issued in connection with acquisitions	555,732	5		15,122		—		—		15,127
Stock-based compensation and related taxes	—	—		1,533		—		—		1,533
Balance at December 31, 2014	75,026,092	$	750	708,356		301,197		17,744		1,028,047
Comprehensive income	—	—		—		116,127		(15,755	)	100,372
Cash dividends declared ($1.05 per share)	—	—		—		(79,792	)	—		(79,792	)
Stock issuances under stock incentive plans	62,346	1		16		—		—		17
Stock issued in connection with acquisitions	997,850	10		25,929		—		—		25,939
Stock-based compensation and related taxes	—	—		2,067		—		—		2,067
Balance at December 31, 2015	76,086,288	$	761	736,368		337,532		1,989		1,076,650

See accompanying notes to consolidated financial statements.

65

GLACIER BANCORP, INC.

CONSOLIDATED STATEMENTS OF CASH FLOWS

	Years ended
(Dollars in thousands)	December 31, 2015			December 31, 2014		December 31, 2013
Operating Activities
Net income	$	116,127		112,755		95,644
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for loan losses	2,284			1,912		6,887
Net amortization of investment securities premiums and discounts	26,709			27,491		64,066
Loans held for sale originated or acquired	(888,676		)	(669,144	)	(918,451	)
Proceeds from sales of loans held for sale	925,353			705,178		1,084,799
Gain on sale of loans	(26,389		)	(19,797	)	(28,517	)
(Gain) loss on sale of investments	(19		)	188		299
Bargain purchase gain	—			(680	)	—
Stock-based compensation expense, net of tax benefits	1,087			859		1,011
Excess tax (benefits) deficiencies from stock-based compensation	(102		)	(138	)	223
Depreciation of premises and equipment	14,365			12,108		10,485
Loss (gain) on sale of other real estate owned and write-downs, net	938			(937	)	1,450
Amortization of core deposit intangibles	2,964			2,811		2,401
Deferred tax (benefit) expense	(4,080		)	5,931		4,633
Net (increase) decrease in accrued interest receivable	(2,377		)	2,648		(265	)
Net (increase) decrease in other assets	(793		)	(5,702	)	19,881
Net (decrease) increase in accrued interest payable	(828		)	567		(1,354	)
Net increase (decrease) in other liabilities	4,903			6,684		(9,097	)
Net cash provided by operating activities	171,466			182,734		334,095
Investing Activities
Sales of available-for-sale securities	136,777			169,372		181,971
Maturities, prepayments and calls of available-for-sale securities	663,828			628,238		1,682,363
Purchases of available-for-sale securities	(961,224		)	(281,332	)	(1,426,262	)
Maturities, prepayments and calls of held-to-maturity securities	20,997			8,930		—
Purchases of held-to-maturity securities	(203,554		)	(49,691	)	—
Principal collected on loans	1,737,508			1,418,517		1,224,222
Loans originated or acquired	(2,112,154		)	(1,735,155	)	(1,559,353	)
Net addition of premises and equipment and other real estate owned	(18,224		)	(14,389	)	(8,977	)
Proceeds from sale of other real estate owned	10,278			15,714		28,535
Net proceeds from sale of non-marketable equity securities	27,770			801		583
Net cash received (paid) in acquisitions	21,427			(2,112	)	26,155
Net cash (used in) provided by investing activities	(676,571		)	158,893		149,237

See accompanying notes to consolidated financial statements.

66

GLACIER BANCORP, INC.

CONSOLIDATED STATEMENTS OF CASH FLOWS (Continued)

	Years ended
(Dollars in thousands)	December 31, 2015			December 31, 2014		December 31, 2013
Financing Activities
Net increase (decrease) in deposits	$	215,650		455,604		(334,672	)
Net increase in securities sold under agreements to repurchase	24,951			83,713		23,886
Net increase (decrease) in short-term Federal Home Loan Bank advances	140,000			(421,000	)	(204,467	)
Proceeds from long-term Federal Home Loan Bank advances	50,000			192,500		1,147,451
Repayments of long-term Federal Home Loan Bank advances	(94,749		)	(314,738	)	(1,105,282	)
Net decrease in other borrowed funds	(566		)	(933	)	(1,502	)
Cash dividends paid	(79,456		)	(50,944	)	(44,232	)
Excess tax benefits (deficiencies) from stock-based compensation	102			138		(223	)
Stock-based compensation activity	17			785		4,326
Net cash provided by (used in) financing activities	255,949			(54,875	)	(514,715	)
Net (decrease) increase in cash and cash equivalents	(249,156		)	286,752		(31,383	)
Cash and cash equivalents at beginning of period	442,409			155,657		187,040
Cash and cash equivalents at end of period	$	193,253		442,409		155,657
Supplemental Disclosure of Cash Flow Information
Cash paid during the period for interest	$	30,103		26,398		30,111
Cash paid during the period for income taxes	39,622			33,343		23,576
Supplemental Disclosure of Non-Cash Investing Activities
Transfer of investment securities from available-for-sale to held-to-maturity	$	—		484,583		—
Sale and refinancing of other real estate owned	446			1,361		4,819
Transfer of loans to other real estate owned	7,989			11,493		15,266
Acquisitions
Fair value of common stock shares issued	25,939			15,127		45,033
Cash consideration for outstanding shares	28,364			16,690		24,858
Fair value of assets acquired	434,963			349,167		630,569
Liabilities assumed	391,592			316,670		560,678

See accompanying notes to consolidated financial statements.

67

GLACIER BANCORP, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Note 1. Nature of Operations and Summary of Significant Accounting Policies

General

Glacier Bancorp, Inc. (“Company”) is a Montana corporation headquartered in Kalispell, Montana. The Company provides a full range of banking services to individuals and businesses in Montana, Idaho, Wyoming, Colorado, Utah and Washington through its wholly-owned bank subsidiary, Glacier Bank (“Bank”). The Company offers a wide range of banking products and services, including transaction and savings deposits, real estate, commercial, agriculture and consumer loans and mortgage origination services. The Company serves individuals, small to medium-sized businesses, community organizations and public entities.

The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America (“GAAP”) requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of income and expenses during the reporting period. Actual results could differ from those estimates.

Material estimates that are particularly susceptible to significant change include: 1) the determination of the allowance for loan and lease losses (“ALLL” or “allowance”); 2) the valuation of investment securities; 3) the valuation of real estate acquired in connection with foreclosures or in satisfaction of loans; and 4) the evaluation of goodwill impairment. For the determination of the ALLL and real estate valuation estimates, management obtains independent appraisals (new or updated) for significant items. Estimates relating to investment valuations are obtained from independent third parties. Estimates relating to the evaluation of goodwill for impairment are determined based on internal calculations using significant independent party inputs.

Principles of Consolidation

The consolidated financial statements of the Company include the parent holding company, the Bank and all variable interest entities (“VIE”) for which the Company has both the power to direct the VIE’s significant activities and the obligation to absorb a majority of the expected losses and/or receive a majority of the expected residual returns. The Bank consists of thirteen bank divisions, a treasury division and an information technology division. The treasury division includes the Bank’s investment portfolio and wholesale borrowings and the information technology division includes the Bank’s internal data processing and information technology expenses. The Bank divisions operate under separate names, management teams and directors. The Company considers the Bank to be its sole operating segment as the Bank 1) engages in similar bank business activity from which it earns revenues and incurs expenses; 2) the operating results of the Bank are regularly reviewed by the Chief Executive Officer (i.e., the chief operating decision maker) who makes decisions about resources to be allocated to the Bank; and 3) financial information is available for the Bank. All significant inter-company transactions have been eliminated in consolidation.

In October 2015, the Company completed its acquisition of Cañon Bank Corporation and its wholly-owned subsidiary, Cañon National Bank, a community bank based in Cañon City, Colorado (collectively, “Cañon”). In February 2015, the Company completed its acquisition of Montana Community Banks, Inc. and its wholly-owned subsidiary, Community Bank, Inc., a community bank based in Ronan, Montana (collectively, “CB”). In August 2014, the Company completed its acquisition of FNBR Holding Corporation and its wholly-owned subsidiary, First National Bank of the Rockies, a community bank based in Grand Junction, Colorado (collectively, “FNBR”). In July 2013, the Company completed its acquisition of North Cascades Bancshares, Inc. and its wholly-owned subsidiary, North Cascades National Bank, a community bank based in Chelan, Washington. In May 2013, the Company acquired Wheatland Bankshares, Inc. and its wholly-owned subsidiary, First State Bank, a community bank based in Wheatland, Wyoming. The transactions were accounted for using the acquisition method, and their results of operations have been included in the Company’s consolidated financial statements as of the acquisition dates.

Cash and Cash Equivalents

Cash and cash equivalents include cash on hand, cash held as demand deposits at various banks and the Federal Reserve Bank (“FRB”), interest bearing deposits, federal funds sold, and liquid investments with original maturities of three months or less. The Bank is required to maintain an average reserve balance with either the FRB or in the form of cash on hand. The required reserve balance at December 31, 2015 was $34,309,000.

68

Note 1. Nature of Operations and Summary of Significant Accounting Policies (continued)

Investment Securities

Debt securities for which the Company has the positive intent and ability to hold to maturity are classified as held-to-maturity and are carried at amortized cost. Debt and equity securities held primarily for the purpose of selling in the near term are classified as trading securities and are reported at fair market value, with unrealized gains and losses included in income. Debt and equity securities not classified as held-to-maturity or trading are classified as available-for-sale and are reported at fair value with unrealized gains and losses, net of income taxes, as a separate component of other comprehensive income. Premiums and discounts on investment securities are amortized or accreted into income using a method that approximates the interest method. The objective of the interest method is to calculate periodic interest income at a constant effective yield. The Company does not have any investment securities classified as trading securities.

The Company reviews and analyzes the various risks that may be present within the investment portfolio on an ongoing basis, including market risk and credit risk. Market risk is the risk to an entity’s financial condition resulting from adverse changes in the value of its holdings arising from movements in interest rates, foreign exchange rates, equity prices or commodity prices. The Company assesses the market risk of individual securities as well as the investment portfolio as a whole. Credit risk, broadly defined, is the risk that an issuer or counterparty will fail to perform on an obligation. A security is investment grade if the issuer has an adequate capacity to meet its commitment over the expected life of the investment, i.e., the risk of default is low and full and timely repayment of interest and principal is expected. To determine investment grade status for securities, the Company conducts due diligence of the creditworthiness of the issuer or counterparty prior to acquisition and ongoing thereafter consistent with the risk characteristics of the security and the overall risk of the investment portfolio. Credit quality due diligence takes into account the extent to which a security is guaranteed by the U.S. government and other agencies of the U.S. government. The depth of the due diligence is based on the complexity of the structure, the size of the security, and takes into account material positions and specific groups of securities or stratifications for analysis and review of similar risk positions. The due diligence includes consideration of payment performance, collateral adequacy, internal analyses, third party research and analytics, external credit ratings and default statistics.

For additional information relating to investment securities, see Note 2.

Temporary versus Other-Than-Temporary Impairment

The Company assesses individual securities in its investment portfolio for impairment at least on a quarterly basis, and more frequently when economic or market conditions warrant. An investment is impaired if the fair value of the security is less than its carrying value at the financial statement date. If impairment is determined to be other-than-temporary, an impairment loss is recognized by reducing the amortized cost for the credit loss portion of the impairment with a corresponding charge to earnings for a like amount.

In evaluating impaired securities for other-than-temporary impairment losses, management considers 1) the severity and duration of the impairment; 2) the credit ratings of the security; and 3) the overall deal structure, including the Company’s position within the structure, the overall and near term financial performance of the issuer and underlying collateral, delinquencies, defaults, loss severities, recoveries, prepayments, cumulative loss projections, discounted cash flows and fair value estimates.

In evaluating debt securities for other-than-temporary impairment losses, management assesses whether the Company intends to sell the security or if it is more-likely-than-not that the Company will be required to sell the debt security. In so doing, management considers contractual constraints, liquidity, capital, asset/liability management and securities portfolio objectives. If impairment is determined to be other-than-temporary and the Company does not intend to sell a debt security, and it is more-likely-than-not the Company will not be required to sell the security before recovery of its cost basis, it recognizes the credit component of an other-than-temporary impairment of a debt security in earnings and the remaining portion (noncredit portion) in other comprehensive income, net of tax. For held-to-maturity debt securities, the amount of an other-than-temporary impairment recorded in other comprehensive income for the noncredit portion of a previous other-than-temporary impairment is amortized prospectively, as an increase to the carrying amount of the security, over the remaining life of the security on the basis of the timing of future estimated cash flows of the security.

69

Note 1. Nature of Operations and Summary of Significant Accounting Policies (continued)

If impairment is determined to be other-than-temporary and the Company intends to sell a debt security or it is more-likely-than-not the Company will be required to sell the security before recovery of its cost basis, it recognizes the entire amount of the other-than-temporary impairment in earnings.

For debt securities with other-than-temporary impairment, the previous amortized cost basis less the other-than-temporary impairment recognized in earnings shall be the new amortized cost basis of the security. In subsequent periods, the Company accretes into interest income the difference between the new amortized cost basis and cash flows expected to be collected prospectively over the life of the debt security.

Loans Held for Sale

Loans held for sale generally consist of long-term, fixed rate, conforming, single-family residential real estate loans and are carried at the lower of cost or estimated fair value in the aggregate. Net unrealized losses, if any, are recognized by charges to non-interest income. A sale is recognized when the Company surrenders control of the loan and consideration, is received in exchange. A gain is recognized in non-interest income to the extent the sales price exceeds the carrying value of the sold loan.

Loans Receivable

Loans that are intended to be held-to-maturity are reported at the unpaid principal balance less net charge-offs and adjusted for deferred fees and costs on originated loans and unamortized premiums or discounts on acquired loans. Fees and costs on originated loans and premiums or discounts on acquired loans are deferred and subsequently amortized or accreted as a yield adjustment over the expected life of the loan utilizing the interest method. The objective of the interest method is to calculate periodic interest income at a constant effective yield. Anticipated prepayments are not included when applying the interest method. When a loan is paid off prior to maturity, the remaining fees and costs on originated loans and premiums or discounts on acquired loans are immediately recognized into interest income.

The Company’s loan segments, which are based on the purpose of the loan, include residential real estate, commercial, and consumer loans. The Company’s loan classes, a further disaggregation of segments, include residential real estate loans (residential real estate segment), commercial real estate and other commercial loans (commercial segment), and home equity and other consumer loans (consumer segment).

Loans that are thirty days or more past due based on payments received and applied to the loan are considered delinquent. Loans are designated non-accrual and the accrual of interest is discontinued when the collection of the contractual principal or interest is unlikely. A loan is typically placed on non-accrual when principal or interest is due and has remained unpaid for ninety days or more. When a loan is placed on non-accrual status, interest previously accrued but not collected is reversed against current period interest income. Subsequent payments on non-accrual loans are applied to the outstanding principal balance if doubt remains as to the ultimate collectability of the loan. Interest accruals are not resumed on partially charged-off impaired loans. For other loans on nonaccrual, interest accruals are resumed on such loans only when they are brought fully current with respect to interest and principal and when, in the judgment of management, the loans are estimated to be fully collectible as to both principal and interest.

The Company considers impaired loans to be the primary credit quality indicator for monitoring the credit quality of the loan portfolio. Loans are designated impaired when, based upon current information and events, it is probable that the Company will be unable to collect the scheduled payments of principal or interest when due according to the contractual terms of the loan agreement and, therefore, the Company has serious doubts as to the ability of such borrowers to fulfill the contractual obligation. Impaired loans include non-performing loans (i.e., non-accrual loans and accruing loans ninety days or more past due) and accruing loans under ninety days past due where it is probable payments will not be received according to the loan agreement (e.g., troubled debt restructuring). Interest income on accruing impaired loans is recognized using the interest method. The Company measures impairment on a loan-by-loan basis in the same manner for each class within the loan portfolio. An insignificant delay or shortfall in the amounts of payments would not cause a loan or lease to be considered impaired. The Company determines the significance of payment delays and shortfalls on a case-by-case basis, taking into consideration all of the facts and circumstances surrounding the loan and the borrower, including the length and reasons for the delay, the borrower’s prior payment record, and the amount of the shortfall in relation to the principal and interest due.

70

Note 1. Nature of Operations and Summary of Significant Accounting Policies (continued)

A restructured loan is considered a troubled debt restructuring (“TDR”) if the creditor, for economic or legal reasons related to the debtor’s financial difficulties, grants a concession to the debtor that it would not otherwise consider. The Company periodically enters into restructure agreements with borrowers whereby the loans were previously identified as TDRs. When such circumstances occur, the Company carefully evaluates the facts of the subsequent restructure to determine the appropriate accounting and under certain circumstances it may be acceptable not to account for the subsequently restructured loan as a TDR. When assessing whether a concession has been granted by the Company, any prior forgiveness on a cumulative basis is considered a continuing concession. A TDR loan is considered an impaired loan and a specific valuation allowance is established when the fair value of the collateral-dependent loan or present value of the loan’s expected future cash flows (discounted at the loan’s effective interest rate based on the original contractual rate) is lower than the carrying value of the impaired loan. The Company has made the following types of loan modifications, some of which were considered a TDR:

• reduction of the stated interest rate for the remaining term of the debt;

• extension of the maturity date(s) at a stated rate of interest lower than the current market rate for newly originated debt having similar risk characteristics; and

• reduction of the face amount of the debt as stated in the debt agreements.

The Company recognizes that while borrowers may experience deterioration in their financial condition, many continue to be creditworthy customers who have the willingness and capacity for debt repayment. In determining whether non-restructured or unimpaired loans issued to a single or related party group of borrowers should continue to accrue interest when the borrower has other loans that are impaired or are TDRs, the Company on a quarterly or more frequent basis performs an updated and comprehensive assessment of the willingness and capacity of the borrowers to timely and ultimately repay their total debt obligations, including contingent obligations. Such analysis takes into account current financial information about the borrowers and financially responsible guarantors, if any, including for example:

• analysis of global, i.e., aggregate debt service for total debt obligations;

• assessment of the value and security protection of collateral pledged using current market conditions and alternative market assumptions across a variety of potential future situations; and

• loan structures and related covenants.

For additional information relating to loans, see Note 3.

Allowance for Loan and Lease Losses

Based upon management’s analysis of the Company’s loan portfolio, the balance of the ALLL is an estimate of probable credit losses known and inherent within the Bank’s loan portfolio as of the date of the consolidated financial statements. The ALLL is analyzed at the loan class level and is maintained within a range of estimated losses. Determining the adequacy of the ALLL involves a high degree of judgment and is inevitably imprecise as the risk of loss is difficult to quantify. The determination of the ALLL and the related provision for loan losses is a critical accounting estimate that involves management’s judgments about all known relevant internal and external environmental factors that affect loan losses. The balance of the ALLL is highly dependent upon management’s evaluations of borrowers’ current and prospective performance, appraisals and other variables affecting the quality of the loan portfolio. Individually significant loans and major lending areas are reviewed periodically to determine potential problems at an early date. Changes in management’s estimates and assumptions are reasonably possible and may have a material impact upon the Company’s consolidated financial statements, results of operations or capital.

Risk characteristics considered in the ALLL analysis applicable to each loan class within the Company's loan portfolio are as follows:

Residential Real Estate.  Residential real estate loans are secured by owner-occupied 1-4 family residences.  Repayment of these loans is primarily dependent on the personal income and credit rating of the borrowers.  Credit risk in these loans is impacted by economic conditions within the Company’s market areas that affect the value of the property securing the loans and affect the borrowers' personal incomes.  Mitigating risk factors for this loan class include a large number of borrowers, geographic dispersion of market areas and the loans are originated for relatively smaller amounts.

Commercial Real Estate.  Commercial real estate loans typically involve larger principal amounts, and repayment of these loans is generally dependent on the successful operation of the property securing the loan and/or the business conducted on the property securing the loan.  Credit risk in these loans is impacted by the creditworthiness of a borrower, valuation of the property securing the loan and conditions within the local economies in the Company’s diverse, geographic market areas.

71

Note 1. Nature of Operations and Summary of Significant Accounting Policies (continued)

Commercial.  Commercial loans consist of loans to commercial customers for use in financing working capital needs, equipment purchases and business expansions.  The loans in this category are repaid primarily from the cash flow of a borrower’s principal business operation.  Credit risk in these loans is driven by creditworthiness of a borrower and the economic conditions that impact the cash flow stability from business operations across the Company’s diverse, geographic market areas.

Home Equity.  Home equity loans consist of junior lien mortgages and first and junior lien lines of credit (revolving open-end and amortizing closed-end) secured by owner-occupied 1-4 family residences.  Repayment of these loans is primarily dependent on the personal income and credit rating of the borrowers.  Credit risk in these loans is impacted by economic conditions within the Company’s market areas that affect the value of the residential property securing the loans and affect the borrowers' personal incomes.  Mitigating risk factors for this loan class are a large number of borrowers, geographic dispersion of market areas and the loans are originated for terms that range from 10 years to 15 years.

Other Consumer.  The other consumer loan portfolio consists of various short-term loans such as automobile loans and loans for other personal purposes.  Repayment of these loans is primarily dependent on the personal income of the borrowers.  Credit risk is driven by consumer economic factors (such as unemployment and general economic conditions in the Company’s diverse, geographic market area) and the creditworthiness of a borrower.

The ALLL consists of a specific valuation allowance component and a general valuation allowance component. The specific component relates to loans that are determined to be impaired and individually evaluated for impairment. The Company measures impairment on a loan-by-loan basis based on the present value of expected future cash flows discounted at the loan’s effective interest rate, except when it is determined that repayment of the loan is expected to be provided solely by the underlying collateral. For impairment based on expected future cash flows, the Company considers all information available as of a measurement date, including past events, current conditions, potential prepayments, and estimated cost to sell when such costs are expected to reduce the cash flows available to repay or otherwise satisfy the loan. For alternative ranges of cash flows, the likelihood of the possible outcomes is considered in determining the best estimate of expected future cash flows. The effective interest rate for a loan restructured in a TDR is based on the original contractual rate. For collateral-dependent loans and real estate loans for which foreclosure or a deed-in-lieu of foreclosure is probable, impairment is measured by the fair value of the collateral, less estimated cost to sell. The fair value of the collateral is determined primarily based upon appraisal or evaluation of the underlying real property value.

The general valuation allowance component relates to probable credit losses inherent in the balance of the loan portfolio based on historical loss experience, adjusted for changes in trends and conditions of qualitative or environmental factors. The historical loss experience is based on the previous twelve quarters loss experience by loan class adjusted for risk characteristics in the existing loan portfolio. The same trends and conditions are evaluated for each class within the loan portfolio; however, the risk characteristics are weighted separately at the individual class level based on the Company’s judgment and experience.

The changes in trends and conditions evaluated for each class within the loan portfolio include the following:

• changes in lending policies and procedures, including changes in underwriting standards and collection, charge-off, and recovery practices not considered elsewhere in estimating credit losses;

• changes in global, national, regional, and local economic and business conditions and developments that affect the collectability of the portfolio, including the condition of various market segments;

• changes in the nature and volume of the portfolio and in the terms of loans;

• changes in experience, ability, and depth of lending management and other relevant staff;

• changes in the volume and severity of past due and nonaccrual loans;

• changes in the quality of the Company’s loan review system;

• changes in the value of underlying collateral for collateral-dependent loans;

• the existence and effect of any concentrations of credit, and changes in the level of such concentrations; and

• the effect of other external factors such as competition and legal and regulatory requirements on the level of estimated credit losses in the Company’s existing portfolio.

The ALLL is increased by provisions for loan losses which are charged to expense. The portions of loan balances determined by management to be uncollectible are charged off as a reduction of the ALLL and recoveries of amounts previously charged off are credited as an increase to the ALLL. The Company’s charge-off policy is consistent with bank regulatory standards. Consumer loans generally are charged off when the loan becomes over 120 days delinquent. Real estate acquired as a result of foreclosure or by deed-in-lieu of foreclosure is classified as real estate owned until such time as it is sold.

72

Note 1. Nature of Operations and Summary of Significant Accounting Policies (continued)

At acquisition date, the assets and liabilities of acquired banks are recorded at their estimated fair values which results in no ALLL carried over from acquired banks. Subsequent to acquisition, an allowance will be recorded on the acquired loan portfolios for further credit deterioration, if any.

Premises and Equipment

Premises and equipment are accounted for at cost less depreciation. Depreciation is computed on a straight-line method over the estimated useful lives or the term of the related lease. The estimated useful life for office buildings is 15 - 40 years and the estimated useful life for furniture, fixtures, and equipment is 3 - 10 years. Interest is capitalized for any significant building projects. For additional information relating to premises and equipment, see Note 4.

Leases

The Company leases certain land, premises and equipment from third parties under operating and capital leases. The lease payments for operating lease agreements are recognized on a straight-line basis. The present value of the future minimum rental payments for capital leases is recognized as an asset when the lease is formed. Lease improvements incurred at the inception of the lease are recorded as an asset and depreciated over the initial term of the lease and lease improvements incurred subsequently are depreciated over the remaining term of the lease. For additional information relating to leases, see Note 4.

Other Real Estate Owned

Property acquired by foreclosure or deed-in-lieu of foreclosure is initially recorded at fair value, less estimated selling cost, at acquisition date (i.e., cost of the property). The Company is considered to have received physical possession of residential real estate property collateralizing a consumer mortgage loan upon the occurrence of either the Company obtaining legal title to the property or the borrower conveying all interest in the property through a deed-in-lieu or similar agreement. Fair value is determined as the amount that could be reasonably expected in a current sale between a willing buyer and a willing seller in an orderly transaction between market participants at the measurement date. Subsequent to the initial acquisition, if the fair value of the asset, less estimated selling cost, is less than the cost of the property, a loss is recognized in other expense and the asset carrying value is reduced. Gain or loss on disposition of other real estate owned (“OREO”) is recorded in non-interest income or non-interest expense, respectively. In determining the fair value of the properties on the date of transfer and any subsequent estimated losses of net realizable value, the fair value of other real estate acquired by foreclosure or deed-in-lieu of foreclosure is determined primarily based upon appraisal or evaluation of the underlying property value.

Long-lived Assets

Long-lived assets are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. An asset is deemed impaired if the sum of the expected future cash flows is less than the carrying amount of the asset. If impaired, an impairment loss is recognized in other expense to reduce the carrying value of the asset to fair value. At December 31, 2015 and 2014, no long-lived assets were considered impaired.

Business Combinations and Intangible Assets

Acquisition accounting requires the total purchase price to be allocated to the estimated fair values of assets acquired and liabilities assumed, including certain intangible assets. Goodwill is recorded if the purchase price exceeds the net fair value of assets acquired and a bargain purchase gain is recorded in other income if the net fair value of assets acquired exceeds the purchase price.

Adjustment of the allocated purchase price may be related to fair value estimates for which all information has not been obtained of the acquired entity known or discovered during the allocation period, the period of time required to identify and measure the fair values of the assets and liabilities acquired in the business combination. The allocation period is generally limited to one year following consummation of a business combination.

Core deposit intangible represents the intangible value of depositor relationships resulting from deposit liabilities assumed in acquisitions and is amortized using an accelerated method based on an estimated runoff of the related deposits. The core deposit intangible is evaluated for impairment and recoverability whenever events or changes in circumstances indicate that its carrying amount may not be recoverable, with any changes in estimated useful life accounted for prospectively over the revised remaining life. For additional information relating to core deposit intangibles, see Note 5.

The Company tests goodwill for impairment at the reporting unit level annually during the third quarter. The Company has identified that each of the bank divisions are reporting units (i.e., components of the Glacier Bank operating segment) given that each division has a separate management team that regularly reviews its respective division financial information; however, the reporting units are aggregated into a single reporting unit due to the reporting units having similar economic characteristics.

73

Note 1. Nature of Operations and Summary of Significant Accounting Policies (continued)

The goodwill of a reporting unit is tested for impairment between annual tests if an event occurs or circumstances change that would more-likely-than-not reduce the fair value of a reporting unit below its carrying amount. Examples of events and circumstances that could trigger the need for interim impairment testing include:

• a significant change in legal factors or in the business climate;

• an adverse action or assessment by a regulator;

• unanticipated competition;

• a loss of key personnel;

• a more-likely-than-not expectation that a reporting unit or a significant portion of a reporting unit will be sold or otherwise disposed of; and

• the testing for recoverability of a significant asset group within a reporting unit.

For the goodwill impairment assessment, the Company has the option, prior to the two-step process, to first assess qualitative factors to determine whether the existence of events or circumstances leads to a determination that it is more-likely-than-not that the fair value of a reporting unit is less than its carrying value. The Company opted to bypass the qualitative assessment for its 2015 and 2014 annual goodwill impairment testing and proceed directly to the two-step goodwill impairment test. The goodwill impairment two-step process requires the Company to make assumptions and judgments regarding fair value. In the first step, the Company calculates an implied fair value based on a control premium analysis. If the implied fair value is less than the carrying value, the second step is completed to compute the impairment amount, if any, by determining the “implied fair value” of goodwill. This determination requires the allocation of the estimated fair value of the reporting units to the assets and liabilities of the reporting units. Any remaining unallocated fair value represents the “implied fair value” of goodwill, which is compared to the corresponding carrying value of goodwill to compute impairment, if any.

For additional information relating to goodwill, see Note 5.

Non-Marketable Equity Securities

Non-marketable equity securities primarily consist of Federal Home Loan Bank (“FHLB”) stock. FHLB stock is restricted because such stock may only be sold to FHLB at its par value. Due to restrictive terms, and the lack of a readily determinable market value, FHLB stock is carried at cost. The investments in FHLB stock are required investments related to the Company’s borrowings from FHLB. FHLB obtains its funding primarily through issuance of consolidated obligations of the FHLB system. The U.S. government does not guarantee these obligations, and each of the regional FHLBs is jointly and severally liable for repayment of each other’s debt.

Bank-Owned Life Insurance

The Company maintains bank-owned life insurance policies on certain current and former employees and directors, which are recorded at their cash surrender values as determined by the insurance carriers. At December 31, 2015 and 2014, the carrying value associated with these policies is $49,534,000 and $46,030,000, respectively, and is recorded in other assets in the Company’s statements of financial position. The appreciation in the cash surrender value of the policies is recognized as a component of other non-interest income in the Company’s statements of operations.

Derivatives and Hedging Activities

For asset and liability management purposes, the Company has entered into interest rate swap agreements to hedge against changes in forecasted cash flows due to interest rate exposures. The interest rate swaps are recognized as assets or liabilities on the Company’s statements of financial condition and measured at fair value. Fair value estimates are obtained from third parties and are based on pricing models. The Company does not enter into interest rate swap agreements for trading or speculative purposes.

The Company takes into account the impact of bilateral collateral and master netting agreements that allows the Company to settle all interest rate swap agreements held with a single counterparty on a net basis, and to offset the net interest rate swap derivative position with the related collateral when recognizing interest rate swap derivative assets and liabilities.

Interest rate swaps are contracts in which a series of interest payments are exchanged over a prescribed period. The notional amount upon which the interest payments are based is not exchanged. The swap agreements are derivative instruments and convert a portion of the Company’s forecasted variable rate debt to a fixed rate (i.e., cash flow hedge) over the payment term of the interest rate swap. The effective portion of the gain or loss on the cash flow hedging instruments is initially reported as a component of other comprehensive income and subsequently reclassified into earnings in the same period during which the transaction affects earnings. The ineffective portion of the gain or loss on derivative instruments, if any, is recognized in earnings. For the years ended December 31, 2015, 2014, and 2013, the Company’s cash flow hedges were determined to be fully effective.

74

Note 1. Nature of Operations and Summary of Significant Accounting Policies (continued)

Interest rate derivative financial instruments receive hedge accounting treatment only if they are designated as a hedge and are expected to be, and are, highly effective in substantially reducing interest rate risk arising from the assets and liabilities identified as exposing the Company to risk. Derivative financial instruments that do not meet specified hedging criteria are recorded at fair value with changes in fair value recorded in income. The Company’s interest rate swaps are considered highly effective and currently meet the hedge accounting criteria.

Cash flows resulting from the interest rate derivative financial instruments that are accounted for as hedges of assets and liabilities are classified in the Company’s cash flow statement in the same category as the cash flows of the items being hedged. For additional information relating to interest rate swap agreements, see Note 10.

The Company also has residential real estate derivatives for commitments to fund certain residential real estate loans (interest rate locks) to be sold into the secondary market and forward commitments for the future delivery of residential real estate loans to third party investors on a best efforts basis. It is the Company’s practice to enter into forward commitments for the future delivery of residential real estate loans when interest rate lock commitments are entered into in order to economically hedge the effect of changes in interest rates resulting from its commitments to fund the loans. These derivatives are not designated in hedge relationships. Such derivatives are short-term in nature and changes in fair value are not recorded as gains on sale of loans because the change is not significant.

Stock-based Compensation

Stock-based compensation awards granted, comprised of stock options and restricted stock awards, are valued at fair value and compensation cost is recognized on a straight-line basis, net of estimated forfeitures, over the requisite service period of each award. For additional information relating to stock-based compensation, see Note 12.

Advertising and Promotion

Advertising and promotion costs are recognized in the period incurred.

Income Taxes

The Company’s income tax expense consists of current and deferred income tax expense. Current income tax expense reflects taxes to be paid or refunded for the current period by applying the provisions of enacted tax law to earnings or losses. Deferred income tax expense results from changes in deferred assets and liabilities between periods. The Company recognizes interest and penalties related to income tax matters in income tax expense.

Deferred tax assets and liabilities are recognized for estimated future income tax consequences attributable to differences between the financial statement carrying amounts of assets and liabilities and their respective tax bases. The effect on deferred tax assets and liabilities of a change in income tax rates is recognized in income in the period that includes the enactment date.

Deferred tax assets are reduced by a valuation allowance if, based on the weight of available evidence, it is more-likely-than-not that some portion or all of the deferred tax assets will not be realized. The term more-likely-than-not means a likelihood of more than fifty percent. The recognition threshold considers the facts, circumstances, and information available at the reporting date and is subject to the Company’s judgment. In assessing the need for a valuation allowance, the Company considers both positive and negative evidence. For additional information relating to income taxes, see Note 15.

Comprehensive Income

Comprehensive income consists of net income and other comprehensive income (“OCI”). OCI includes unrealized gains and losses, net of tax effect, on available-for-sale securities and derivatives used for cash flow hedges.

Earnings Per Share

Basic earnings per share is computed by dividing net income by the weighted-average number of shares of common stock outstanding during the period presented. Diluted earnings per share is computed by including the net increase in shares as if dilutive outstanding stock options were exercised and restricted stock awards were vested, using the treasury stock method. For additional information relating to earnings per share, see Note 17.

Reclassifications

Certain reclassifications have been made to the 2014 and 2013 financial statements to conform to the 2015 presentation.

75

Note 1. Nature of Operations and Summary of Significant Accounting Policies (continued)

Impact of Recent Authoritative Accounting Guidance

The Accounting Standards Codification^™ (“ASC”) is the Financial Accounting Standards Board’s (“FASB”) officially recognized source of authoritative GAAP applicable to all public and non-public non-governmental entities. Rules and interpretive releases of the Securities and Exchange Commission (“SEC”) under the authority of the federal securities laws are also sources of authoritative GAAP for the Company as an SEC registrant. All other accounting literature is non-authoritative. The following paragraphs provide descriptions of recently adopted or newly issued but not yet effective accounting standards that could have a material effect on the Company’s financial position or results of operations.

In January 2016, FASB amended FASB ASC Topic 825, Financial Instruments. The amendments in this Update address certain aspects of recognition, measurement, presentation, and disclosure of financial instruments. The amendments are effective for public business entities for the first interim and annual reporting periods beginning after December 15, 2017. Early adoption is only permitted under certain circumstances outlined in the amendments. A reporting entity should apply the amendments by means of a cumulative-effect adjustment to the Company’s statement of financial condition as of the beginning of the reporting year of adoption. The amendments related to equity securities without readily determinable fair values should be applied prospectively. The Company is currently evaluating the impact of these amendments, but does not expect them to have a material effect on the Company’s financial position or results of operations.

In September 2015, FASB amended FASB ASC Topic 805, Business Combinations. The amendments in this Update require that an acquirer recognize adjustments to provisional amounts that are identified during the measurement period in the reporting period in which the adjustments are necessary. The amendments in this Update require that the acquirer record, in the same period’s financial statements, the effect on earnings of changes in depreciation, amortization, or other income effects, if any, as a result of the change to the provisional amounts, calculated as if the accounting had been completed at the acquisition date. The amendments in this Update require an entity to present separately on the face of the income statement or disclose in the notes the portion of the amount recorded in current-period earnings by line item that would have been recorded in previous reporting periods if the adjustment to the provisional amounts had been recognized as of the acquisition date. The amendments should be applied prospectively to all periods presented and are effective for public business entities for annual periods and interim periods within those annual periods, beginning after December 15, 2015. The Company has evaluated the impact of these amendments and determined there would not be a material effect on the Company’s financial position or results of operations.

In February 2015, FASB amended FASB ASC Topic 810, Consolidation. The amendments in this Update make targeted changes to the current consolidation guidance and end a deferral available for investment companies. The amendments modify the evaluation of whether limited partnerships and similar legal entities are VIEs or voting interest entities. Consolidation conclusions may change for entities that already are VIEs due to changes in how entities would analyze related-party relationships and fee arrangements. The amendments relax existing criteria for determining when fees paid to a decision maker or service provider do not represent a variable interest by focusing on whether those fees are “at market.” The amendments eliminate both the consolidation model specific to limited partnerships and the current presumption that a general partner controls a limited partnership. Application of the new amendments could result in some entities being deconsolidated or considered a VIE and subject to additional disclosures. The amendments are effective for public business entities for the first interim and annual reporting periods beginning after December 15, 2015. Early adoption is permitted, including adoption in an interim period with any adjustments reflected as of the beginning of the reporting year that includes the interim period. A reporting entity may apply the amendments using a modified retrospective approach by recording a cumulative-effect adjustment to equity as of the beginning of the reporting year of adoption or may apply the amendments retrospectively. The Company is currently evaluating the impact of these amendments, but does not expect them to have a material effect on the Company’s financial position or results of operations.

In August 2014, FASB amended FASB ASC Subtopic 310-40, Receivables - Troubled Debt Restructurings by Creditors. The amendment requires that a mortgage loan be derecognized and that a separate other receivable be recognized upon foreclosure if the following conditions are met: 1) The loan has a government guarantee that is not separable from the loan before foreclosure; 2) At the time of foreclosure, the creditor has the intent to convey the real estate property to the guarantor and make a claim on the guarantee, and the creditor has the ability to recover under that claim; and 3) At the time of foreclosure, any amount of the claim that is determined on the basis of the fair value of the real estate is fixed. Upon foreclosure, the separate other receivable should be measured based on the amount of the loan balance (principal and interest) expected to be recovered from the guarantor. The amendment is effective for public business entities for interim and annual periods beginning after December 15, 2014. An entity can elect to adopt the amendments using either a prospective transition method or a modified retrospective method as defined in the amendment. The Company has evaluated the impact of the adoption of this amendment and determined there was not a material effect on the Company’s financial position or results of operations.

76

Note 1. Nature of Operations and Summary of Significant Accounting Policies (continued)

In June 2014, FASB amended FASB ASC Topic 860, Transfers and Servicing. The amendments in this Update require the following accounting changes: 1) change the accounting for repurchase-to-maturity transactions to secured borrowing accounting; and 2) for repurchase finance arrangements, require separate accounting for a transfer of a financial asset executed contemporaneously with a repurchase agreement with the same counterparty, which will result in a secured borrowing accounting for the repurchase agreement. The amendments also require certain disclosures for securities sold under agreements to repurchase (“repurchase agreements”), securities lending transactions, and repurchase-to-maturity transactions that are accounted for as secured borrowings. The accounting changes are effective for public business entities for the first interim or annual reporting periods beginning after December 15, 2014. Early application for public business entities is not permitted. The disclosure changes for repurchase agreements are effective for public business entities for annual reporting periods beginning after December 15, 2014. The Company has evaluated the impact of the adoption of this amendment and determined there was not a material effect on the Company’s financial position or results of operations.

In May 2014, FASB amended FASB ASC Topic 606, Revenue from Contracts with Customers. The amendments clarify the principals for recognizing revenue and develop a common revenue standard among industries. The new guidance establishes the following core principal: recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for goods or services. Five steps are provided for a company or organization to follow to achieve such core principle. The new guidance also includes a cohesive set of disclosure requirements that will provide users of financial statements with comprehensive information about the nature, amount, timing, and uncertainty of revenue and cash flows arising from contracts with customers. The entity should apply the amendments using one of two retrospective methods described in the amendment. Accounting Standards Update No 2015-14, Revenue from Contracts with Customers (Topic 606) delayed the effective date for public entities to annual reporting periods beginning after December 15, 2017, including interim reporting periods within that reporting period. Early application is permitted only as of annual reporting periods beginning after December 15, 2016, including interim reporting periods within that reporting period. The Company is currently evaluating the impact of these amendments, but does not expect them to have a material effect on the Company’s financial position or results of operations.

In January 2014, FASB amended FASB ASC Subtopic 310-40, Receivables - Troubled Debt Restructurings by Creditors. The amendment clarifies that an in substance repossession foreclosure occurs when a creditor is considered to have received physical possession of residential real estate property collateralizing a consumer mortgage loan, upon either 1) the creditor obtaining legal title to the residential real estate property upon completion of a foreclosure; or 2) the borrower conveying all interest in the residential real estate property to the creditor to satisfy that loan through completion of a deed-in-lieu of foreclosure or through a similar legal agreement. Additionally, the amendment requires interim and annual disclosure of both 1) the amount of foreclosed residential real estate property held by the creditor; and 2) the recorded investment in consumer mortgage loans collateralized by residential real estate property that are in the process of foreclosure according to local requirements of the applicable jurisdiction. The amendment is effective for public business entities for interim and annual periods beginning after December 15, 2014. An entity can elect to adopt the amendments using either a modified retrospective transition method or a prospective transition method as defined in the amendment. The Company has evaluated the impact of the adoption of this amendment and determined there was not a material effect on the Company’s financial position or results of operations.

In January 2014, FASB amended FASB ASC Topic 323, Investments - Equity Method and Joint Ventures. The amendments permit entities to make an accounting policy election for their investments in qualified affordable housing projects using the proportional amortization method if certain conditions are met. Under the proportional amortization method, an entity amortizes the initial cost of the investment in proportion to the tax credits and other tax benefits received and recognizes the net investment performance in the income statement as a component of income tax expense. The amendments should be applied retrospectively to all periods presented and are effective for public business entities for annual periods and interim periods within those annual periods, beginning after December 15, 2014. The adoption of these amendments did not have a material effect on the Company’s financial position or results of operations.

77

Note 2. Investment Securities

The following tables present the amortized cost, the gross unrealized gains and losses and the fair value of the Company’s investment securities:

	December 31, 2015
	Amortized Cost		Gross Unrealized			Fair Value
(Dollars in thousands)			Gains	Losses
Available-for-sale
U.S. government and federal agency	$	47,868	15	(432	)	47,451
U.S. government sponsored enterprises	93,230		100	(163	)	93,167
State and local governments	856,738		34,159	(5,878	)	885,019
Corporate bonds	386,629		611	(3,077	)	384,163
Residential mortgage-backed securities	1,203,548		6,180	(8,768	)	1,200,960
Total available-for-sale	2,588,013		41,065	(18,318	)	2,610,760
Held-to-maturity
State and local governments	702,072		31,863	(4,422	)	729,513
Total held-to-maturity	702,072		31,863	(4,422	)	729,513
Total investment securities	$	3,290,085	72,928	(22,740	)	3,340,273

	December 31, 2014
	Amortized Cost		Gross Unrealized			Fair Value
(Dollars in thousands)			Gains	Losses
Available-for-sale
U.S. government and federal agency	$	44	—	—		44
U.S. government sponsored enterprises	21,916		31	(2	)	21,945
State and local governments	962,365		40,173	(4,569	)	997,969
Corporate bonds	313,545		2,059	(750	)	314,854
Residential mortgage-backed securities	1,043,897		11,205	(2,486	)	1,052,616
Total available-for-sale	2,341,767		53,468	(7,807	)	2,387,428
Held-to-maturity
State and local governments	520,997		32,925	(2,976	)	550,946
Total held-to-maturity	520,997		32,925	(2,976	)	550,946
Total investment securities	$	2,862,764	86,393	(10,783	)	2,938,374

78

Note 2. Investment Securities (continued)

The following table presents the amortized cost and fair value of available-for-sale and held-to-maturity securities by contractual maturity at December 31, 2015. Actual maturities may differ from expected or contractual maturities since issuers have the right to prepay obligations with or without prepayment penalties.

	December 31, 2015
	Available-for-Sale			Held-to-Maturity
(Dollars in thousands)	Amortized Cost		Fair Value	Amortized Cost	Fair Value
Due within one year	$	140,703	141,230	—	—
Due after one year through five years	486,235		484,467	—	—
Due after five years through ten years	128,158		131,883	25,073	25,605
Due after ten years	629,369		652,220	676,999	703,908
	1,384,465		1,409,800	702,072	729,513
Residential mortgage-backed securities 1	1,203,548		1,200,960	—	—
Total	$	2,588,013	2,610,760	702,072	729,513

________

¹Residential mortgage-backed securities, which have prepayment provisions, are not assigned to maturity categories due to fluctuations in their prepayment speeds.

Proceeds from sales and calls of investment securities and the associated gains and losses that have been included in earnings are listed below:

	Years ended
(Dollars in thousands)	December 31, 2015			December 31, 2014		December 31, 2013
Available-for-sale
Proceeds from sales and calls of investment securities	$	167,660		219,849		181,971
Gross realized gains 1	1,877			501		3,723
Gross realized losses 1	(1,808		)	(705	)	(4,022	)
Held-to-maturity
Proceeds from calls of investment securities	20,997			8,930		—
Gross realized gains 1	50			22		—
Gross realized losses 1	(100		)	(6	)	—

__________

¹The gain or loss on the sale or call of each investment security is determined by the specific identification method.

At December 31, 2015 and 2014, the Company had investment securities with carrying values of $1,824,819,000 and $1,673,263,000, respectively, pledged as collateral for FHLB advances, FRB discount window borrowings, repurchase agreements, interest rate swap agreements and deposits of several local government units.

79

Note 2. Investment Securities (continued)

Investment securities with an unrealized loss position are summarized as follows:

	December 31, 2015
	Less than 12 Months				12 Months or More			Total
(Dollars in thousands)	Fair Value		Unrealized Loss		Fair Value	Unrealized Loss		Fair Value	Unrealized Loss
Available-for-sale
U.S. government and federal agency	$	42,493	(432	)	2	—		42,495	(432	)
U.S. government sponsored enterprises	60,010		(163	)	—	—		60,010	(163	)
State and local governments	102,422		(1,629	)	115,943	(4,249	)	218,365	(5,878	)
Corporate bonds	228,258		(1,812	)	13,962	(1,265	)	242,220	(3,077	)
Residential mortgage-backed securities	730,412		(7,226	)	53,021	(1,542	)	783,433	(8,768	)
Total available-for-sale	$	1,163,595	(11,262	)	182,928	(7,056	)	1,346,523	(18,318	)
Held-to-maturity
State and local governments	$	42,322	(594	)	81,709	(3,828	)	124,031	(4,422	)
Total held-to-maturity	$	42,322	(594	)	81,709	(3,828	)	124,031	(4,422	)

	December 31, 2014
	Less than 12 Months				12 Months or More			Total
(Dollars in thousands)	Fair Value		Unrealized Loss		Fair Value	Unrealized Loss		Fair Value	Unrealized Loss
Available-for-sale
U.S. government and federal agency	$	—	—		3	—		3	—
U.S. government sponsored enterprises	13,793		(2	)	—	—		13,793	(2	)
State and local governments	91,082		(1,273	)	115,927	(3,296	)	207,009	(4,569	)
Corporate bonds	60,289		(545	)	7,874	(205	)	68,163	(750	)
Residential mortgage-backed securities	192,962		(926	)	78,223	(1,560	)	271,185	(2,486	)
Total available-for-sale	$	358,126	(2,746	)	202,027	(5,061	)	560,153	(7,807	)
Held-to-maturity
State and local governments	$	18,643	(624	)	76,761	(2,352	)	95,404	(2,976	)
Total held-to-maturity	$	18,643	(624	)	76,761	(2,352	)	95,404	(2,976	)

Based on an analysis of its investment securities with unrealized losses as of December 31, 2015 and 2014, the Company determined that none of such securities had other-than-temporary impairment and the unrealized losses were primarily the result of interest rate changes and market spreads subsequent to acquisition. The fair value of the investment securities is expected to recover as payments are received and the securities approach maturity. At December 31, 2015, management determined that it did not intend to sell investment securities with unrealized losses, and there was no expected requirement to sell any of its investment securities with unrealized losses before recovery of their amortized cost.

80

Note 3. Loans Receivable, Net

The Company’s loan portfolio is comprised of three segments: residential real estate, commercial, and consumer and other loans. The loan segments are further disaggregated into the following classes: residential real estate, commercial real estate, other commercial, home equity and other consumer loans. The following table presents loans receivable for each portfolio class of loans:

	At or for the Year ended
(Dollars in thousands)	December 31, 2015			December 31, 2014
Residential real estate loans	$	688,912		611,463
Commercial loans
Real estate	2,633,953			2,337,548
Other commercial	1,099,564			925,900
Total	3,733,517			3,263,448
Consumer and other loans
Home equity	420,901			394,670
Other consumer	235,351			218,514
Total	656,252			613,184
Loans receivable 1	5,078,681			4,488,095
Allowance for loan and lease losses	(129,697		)	(129,753	)
Loans receivable, net	$	4,948,984		4,358,342
Weighted-average interest rate on loans (tax-equivalent)	4.84		%	4.86	%

__________

¹  Includes net deferred fees, costs, premiums and discounts of $15,529,000 and $13,710,000 at December 31, 2015 and 2014, respectively.

The following tables summarize the activity in the ALLL by portfolio segment:

	Year ended December 31, 2015
(Dollars in thousands)	Total			Residential Real Estate		Commercial Real Estate		Other Commercial		Home Equity		Other Consumer
Balance at beginning of period	$	129,753		14,680		67,799		30,891		9,963		6,420
Provision for loan losses	2,284			640		(696	)	3,030		(480	)	(210	)
Charge-offs	(7,002		)	(985	)	(1,920	)	(2,322	)	(809	)	(966	)
Recoveries	4,662			92		2,694		926		324		626
Balance at end of period	$	129,697		14,427		67,877		32,525		8,998		5,870

	Year ended December 31, 2014
(Dollars in thousands)	Total			Residential Real Estate		Commercial Real Estate		Other Commercial		Home Equity		Other Consumer
Balance at beginning of period	$	130,351		14,067		70,332		28,630		9,299		8,023
Provision for loan losses	1,912			716		(2,877	)	3,708		1,254		(889	)
Charge-offs	(7,603		)	(431	)	(1,802	)	(3,058	)	(1,038	)	(1,274	)
Recoveries	5,093			328		2,146		1,611		448		560
Balance at end of period	$	129,753		14,680		67,799		30,891		9,963		6,420

81

Note 3. Loans Receivable, Net (continued)

	Year ended December 31, 2013
(Dollars in thousands)	Total			Residential Real Estate		Commercial Real Estate		Other Commercial		Home Equity		Other Consumer
Balance at beginning of period	$	130,854		15,482		74,398		21,567		10,659		8,748
Provision for loan losses	6,887			(921	)	(3,670	)	10,271		868		339
Charge-offs	(13,643		)	(793	)	(3,736	)	(4,671	)	(2,594	)	(1,849	)
Recoveries	6,253			299		3,340		1,463		366		785
Balance at end of period	$	130,351		14,067		70,332		28,630		9,299		8,023

The following tables disclose the balance in the ALLL and the recorded investment in loans by portfolio segment:

	December 31, 2015
(Dollars in thousands)	Total		Residential Real Estate	Commercial Real Estate	Other Commercial	Home Equity	Other Consumer
Allowance for loan and lease losses
Individually evaluated for impairment	$	8,124	782	1,629	5,277	64	372
Collectively evaluated for impairment	121,573		13,645	66,248	27,248	8,934	5,498
Total allowance for loan and lease losses	$	129,697	14,427	67,877	32,525	8,998	5,870
Loans receivable
Individually evaluated for impairment	$	140,773	20,767	85,845	23,874	6,493	3,794
Collectively evaluated for impairment	4,937,908		668,145	2,548,108	1,075,690	414,408	231,557
Total loans receivable	$	5,078,681	688,912	2,633,953	1,099,564	420,901	235,351

	December 31, 2014
(Dollars in thousands)	Total		Residential Real Estate	Commercial Real Estate	Other Commercial	Home Equity	Other Consumer
Allowance for loan and lease losses
Individually evaluated for impairment	$	11,597	853	2,967	6,836	447	494
Collectively evaluated for impairment	118,156		13,827	64,832	24,055	9,516	5,926
Total allowance for loan and lease losses	$	129,753	14,680	67,799	30,891	9,963	6,420
Loans receivable
Individually evaluated for impairment	$	161,366	19,576	105,264	25,321	6,901	4,304
Collectively evaluated for impairment	4,326,729		591,887	2,232,284	900,579	387,769	214,210
Total loans receivable	$	4,488,095	611,463	2,337,548	925,900	394,670	218,514

Substantially all of the Company’s loans receivable are with customers in the Company’s geographic market areas. Although the Company has a diversified loan portfolio, a substantial portion of its customers’ ability to honor their obligations is dependent upon the economic performance in the Company’s market areas. The Company is subject to regulatory limits for the amount of loans to any individual borrower and the Company is in compliance with this regulation as of December 31, 2015 and 2014. No borrower had outstanding loans or commitments exceeding 10 percent of the Company’s consolidated stockholders’ equity as of December 31, 2015.

At December 31, 2015, the Company had $3,298,198,000 in variable rate loans and $1,780,483,000 in fixed rate loans. At December 31, 2015, 2014, and 2013, loans sold and serviced for others were $128,499,000, $133,768,000, and $148,376,000, respectively. At December 31, 2015, the Company had loans of $2,899,827,000 pledged as collateral for FHLB advances and FRB discount window. There were no significant purchases or sales of portfolio loans during 2015, 2014 and 2013.

82

Note 3. Loans Receivable, Net (continued)

The Company has entered into transactions with its executive officers and directors and their affiliates. The aggregate amount of loans outstanding to such related parties at December 31, 2015 and 2014 was $57,764,000 and $55,427,000, respectively. During 2015, new loans to such related parties were $10,435,000 and repayments were $8,098,000. In management’s opinion, such loans were made in the ordinary course of business and were made on substantially the same terms as those prevailing at the time for comparable transaction with other persons.

The following tables disclose information related to impaired loans by portfolio segment:

	At or for the Year ended December 31, 2015
(Dollars in thousands)	Total		Residential Real Estate	Commercial Real Estate	Other Commercial	Home Equity	Other Consumer
Loans with a specific valuation allowance
Recorded balance	$	34,683	8,253	12,554	11,923	102	1,851
Unpaid principal balance	36,157		9,198	12,581	12,335	109	1,934
Specific valuation allowance	8,124		782	1,629	5,277	64	372
Average balance	36,176		6,393	15,827	11,768	426	1,762
Loans without a specific valuation allowance
Recorded balance	$	106,090	12,514	73,291	11,951	6,391	1,943
Unpaid principal balance	132,718		13,969	94,028	15,539	7,153	2,029
Average balance	116,356		13,615	78,684	15,479	6,350	2,228
Total
Recorded balance	$	140,773	20,767	85,845	23,874	6,493	3,794
Unpaid principal balance	168,875		23,167	106,609	27,874	7,262	3,963
Specific valuation allowance	8,124		782	1,629	5,277	64	372
Average balance	152,532		20,008	94,511	27,247	6,776	3,990

	At or for the Year ended December 31, 2014
(Dollars in thousands)	Total		Residential Real Estate	Commercial Real Estate	Other Commercial	Home Equity	Other Consumer
Loans with a specific valuation allowance
Recorded balance	$	45,688	4,110	27,155	11,377	1,214	1,832
Unpaid principal balance	48,477		4,276	28,048	12,461	1,336	2,356
Specific valuation allowance	11,597		853	2,967	6,836	447	494
Average balance	53,339		5,480	24,519	19,874	1,039	2,427
Loans without a specific valuation allowance
Recorded balance	$	115,678	15,466	78,109	13,944	5,687	2,472
Unpaid principal balance	145,038		16,683	100,266	19,117	6,403	2,569
Average balance	128,645		15,580	89,015	14,024	7,163	2,863
Total
Recorded balance	$	161,366	19,576	105,264	25,321	6,901	4,304
Unpaid principal balance	193,515		20,959	128,314	31,578	7,739	4,925
Specific valuation allowance	11,597		853	2,967	6,836	447	494
Average balance	181,984		21,060	113,534	33,898	8,202	5,290

Interest income recognized on impaired loans for the years ended December 31, 2015, 2014, and 2013 was not significant.

83

Note 3. Loans Receivable, Net (continued)

The following tables present an aging analysis of the recorded investment in loans by portfolio segment:

	December 31, 2015
(Dollars in thousands)	Total		Residential Real Estate	Commercial Real Estate	Other Commercial	Home Equity	Other Consumer
Accruing loans 30-59 days past due	$	15,801	4,895	4,393	3,564	1,601	1,348
Accruing loans 60-89 days past due	3,612		961	1,841	286	280	244
Accruing loans 90 days or more past due	2,131		—	231	1,820	15	65
Non-accrual loans	51,133		8,073	28,819	7,691	6,022	528
Total past due and non-accrual loans	72,677		13,929	35,284	13,361	7,918	2,185
Current loans receivable	5,006,004		674,983	2,598,669	1,086,203	412,983	233,166
Total loans receivable	$	5,078,681	688,912	2,633,953	1,099,564	420,901	235,351

	December 31, 2014
(Dollars in thousands)	Total		Residential Real Estate	Commercial Real Estate	Other Commercial	Home Equity	Other Consumer
Accruing loans 30-59 days past due	$	19,139	3,506	7,925	5,310	1,374	1,024
Accruing loans 60-89 days past due	6,765		1,686	3,592	609	679	199
Accruing loans 90 days or more past due	214		35	31	74	17	57
Non-accrual loans	61,882		6,798	39,717	8,421	5,969	977
Total past due and non-accrual loans	88,000		12,025	51,265	14,414	8,039	2,257
Current loans receivable	4,400,095		599,438	2,286,283	911,486	386,631	216,257
Total loans receivable	$	4,488,095	611,463	2,337,548	925,900	394,670	218,514

Interest income that would have been recorded on non-accrual loans if such loans had been current for the entire period would have been approximately $2,471,000, $3,005,000, and $4,122,000 for the years ended December 31, 2015, 2014, and 2013, respectively.

The following tables present TDRs that occurred during the periods presented and the TDRs that occurred within the previous twelve months that subsequently defaulted during the periods presented:

	Year ended December 31, 2015
(Dollars in thousands)	Total		Residential Real Estate	Commercial Real Estate	Other Commercial	Home Equity	Other Consumer
TDRs that occurred during the period
Number of loans	64		3	25	22	1	13
Pre-modification recorded balance	$	22,316	2,259	8,877	10,545	137	498
Post-modification recorded balance	$	23,110	2,203	9,927	10,325	157	498
TDRs that subsequently defaulted
Number of loans	7		1	1	4	—	1
Recorded balance	$	2,556	1,947	78	529	—	2

84

Note 3. Loans Receivable, Net (continued)

	Year ended December 31, 2014
(Dollars in thousands)	Total		Residential Real Estate	Commercial Real Estate	Other Commercial	Home Equity	Other Consumer
TDRs that occurred during the period
Number of loans	51		—	18	24	6	3
Pre-modification recorded balance	$	37,781	—	21,760	12,522	3,385	114
Post-modification recorded balance	$	37,075	—	21,803	11,884	3,274	114
TDRs that subsequently defaulted
Number of loans	5		—	2	1	2	—
Recorded balance	$	4,453	—	927	693	2,833	—

	Year ended December 31, 2013
(Dollars in thousands)	Total		Residential Real Estate	Commercial Real Estate	Other Commercial	Home Equity	Other Consumer
TDRs that occurred during the period
Number of loans	63		9	21	23	2	8
Pre-modification recorded balance	$	29,046	1,907	20,334	6,087	147	571
Post-modification recorded balance	$	29,359	2,293	20,334	6,087	147	498
TDRs that subsequently defaulted
Number of loans	5		1	1	3	—	—
Recorded balance	$	849	265	79	505	—	—

The modifications for the TDRs that occurred during the years ended December 31, 2015, 2014 and 2013 included one or a combination of the following: an extension of the maturity date, a reduction of the interest rate or a reduction in the principal amount.

In addition to the TDRs that occurred during the period provided in the preceding tables, the Company had TDRs with pre-modification loan balances of $8,893,000, $12,674,000 and $18,345,000 for the years ended December 31, 2015, 2014 and 2013, respectively, for which OREO was received in full or partial satisfaction of the loans. The majority of such TDRs were in commercial real estate for the years ended December 31, 2015, 2014 and 2013. At December 31, 2015 and 2014, the Company had $3,253,000 and $698,000, respectively, of consumer mortgage loans secured by residential real estate properties for which formal foreclosure proceedings are in process. At December 31, 2015 and 2014, the Company had $1,496,000 and $2,322,000, respectively, of OREO secured by residential real estate properties.

There were $2,803,000 and $4,263,000 of additional unfunded commitments on TDRs outstanding at December 31, 2015 and 2014, respectively. The amount of charge-offs on TDRs during 2015, 2014 and 2013 was $1,310,000, $1,361,000 and $1,945,000, respectively.

85

Note 4. Premises and Equipment

Premises and equipment, net of accumulated depreciation, consist of the following:

(Dollars in thousands)	December 31, 2015			December 31, 2014
Land	$	30,108		27,605
Office buildings and construction in progress	187,787			172,544
Furniture, fixtures and equipment	78,803			70,622
Leasehold improvements	8,028			7,813
Accumulated depreciation	(110,696		)	(99,409	)
Net premises and equipment	$	194,030		179,175

Depreciation expense for the years ended December 31, 2015, 2014, and 2013 was $14,365,000, $12,108,000, and $10,485,000, respectively.

The Company leases certain land, premises and equipment from third parties under operating and capital leases. Total rent expense for the years ended December 31, 2015, 2014, and 2013 was $3,137,000, $2,786,000, and $2,912,000, respectively. Amortization of building capital lease assets is included in depreciation. The Company has entered into lease transactions with related parties. Rent expense with such related parties for the years ended December 31, 2015, 2014, and 2013 was $150,000, $146,000, and $142,000, respectively.

The total future minimum rental commitments required under operating and capital leases that have initial or remaining noncancelable lease terms in excess of one year at December 31, 2015 are as follows:

(Dollars in thousands)	Capital Leases		Operating Leases	Total
Years ending December 31,
2016	$	92	2,443	2,535
2017	92		2,132	2,224
2018	92		1,877	1,969
2019	92		1,682	1,774
2020	92		1,160	1,252
Thereafter	11		3,202	3,213
Total minimum lease payments	471		12,496	12,967
Less: Amount representing interest	64
Present value of minimum lease payments	407
Less: Current portion of obligations under capital leases	72
Long-term portion of obligations under capital leases	$	335

86

Note 5. Other Intangible Assets and Goodwill

The following table sets forth information regarding the Company’s core deposit intangibles:

	At or for the Years ended
(Dollars in thousands)	December 31, 2015			December 31, 2014		December 31, 2013
Gross carrying value	$	38,527		32,056		27,857
Accumulated amortization	(23,972		)	(21,156	)	(18,345	)
Net carrying value	$	14,555		10,900		9,512
Aggregate amortization expense	$	2,964		2,811		2,401
Weighted-average amortization period	9.7 years
Estimated amortization expense for the years ending December 31,
2016	$	2,923
2017	2,027
2018	1,598
2019	1,512
2020	1,465

Core deposit intangibles increased $6,619,000, $4,199,000 and $5,739,000 during 2015, 2014 and 2013, respectively, due to acquisitions. For additional information relating to acquisitions, see Note 22.

The following table discloses the changes in the carrying value of goodwill:

	Years ended
(Dollars in thousands)	December 31, 2015		December 31, 2014	December 31, 2013
Net carrying value at beginning of period	$	129,706	129,706	106,100
Acquisitions	10,932		—	23,606
Net carrying value at end of period	$	140,638	129,706	129,706

The gross carrying value of goodwill and the accumulated impairment charge consists of the following:

(Dollars in thousands)	December 31, 2015			December 31, 2014
Gross carrying value	$	180,797		169,865
Accumulated impairment charge 1	(40,159		)	(40,159	)
Net carrying value	$	140,638		129,706

__________

¹ A goodwill impairment charge was recognized in 2011 and was due to high levels of volatility and dislocation in bank stock prices nationwide.

87

Note 5. Other Intangible Assets and Goodwill (continued)

The Company’s first step in evaluating goodwill for possible impairment is a control premium analysis. The analysis first calculates the market capitalization and then adjusts such value for a control premium range which results in an implied fair value. The control premium range is determined based on historical control premiums for acquisitions that are comparable to the Company and is obtained from an independent third party. The calculated implied fair value is then compared to the book value to determine whether the Company needs to proceed to step two of the goodwill impairment assessment. The Company performed its annual goodwill impairment test during the third quarter of 2015 and determined the fair value of the aggregated reporting units exceeded the carrying value, such that the Company’s goodwill was not considered impaired. In recognition there were no events or circumstances that occurred during the fourth quarter of 2015 that would more-likely-than-not reduce the fair value of a reporting unit below its carrying value, the Company did not perform interim testing at December 31, 2015. Changes in the economic environment, operations of the aggregated reporting units, or other factors could result in the decline in the fair value of the aggregated reporting units which could result in a goodwill impairment in the future.

Note 6. Variable Interest Entities

A VIE is a partnership, limited liability company, trust or other legal entity that meets either one of the following criteria; 1) the entity’s total equity investment at risk is not sufficient to permit the entity to finance its activities without additional subordinated financial support from other parties, or 2) the entity has equity investors that cannot make significant decisions about the entity’s operations or that do not absorb their proportionate share of the expected losses or receive the expected returns of the entity. A VIE must be consolidated by the Company if it is deemed to be the primary beneficiary of the VIE, which is the party involved with the VIE that has the power to direct the VIE’s significant activities and will absorb a majority of the expected losses, receive a majority of the expected residual returns, or both.

The Company’s VIEs are regularly monitored to determine if any reconsideration events have occurred that could cause the primary beneficiary status to change. A previously unconsolidated VIE is consolidated when the Company becomes the primary beneficiary. A previously consolidated VIE is deconsolidated when the Company ceases to be the primary beneficiary or the entity is no longer a VIE.

Consolidated Variable Interest Entities

The Company has equity investments in Certified Development Entities (“CDE”) which have received allocations of New Markets Tax Credits (“NMTC”). The Company also has equity investments in Low-Income Housing Tax Credit (“LIHTC”) partnerships. The CDEs and the LIHTC partnerships are VIEs. The underlying activities of the VIEs are community development projects designed primarily to promote community welfare, such as economic rehabilitation and development of low-income areas by providing housing, services, or jobs for residents. The maximum exposure to loss in the VIEs is the amount of equity invested and credit extended by the Company. However, the Company has credit protection in the form of indemnification agreements, guarantees, and collateral arrangements. The primary activities of the VIEs are recognized in commercial loans interest income, other non-interest income and other borrowed funds interest expense on the Company’s statements of operations and the federal income tax credit allocations from the investments are recognized in the Company’s statements of operations as a component of income tax expense. Such related cash flows are recognized in loans originated, principal collected on loans and change in other borrowed funds. The Company has evaluated the variable interests held by the Company in each CDE (NMTC) and LIHTC partnership investment and determined that the Company continues to be the primary beneficiary of such VIEs. As the primary beneficiary, the VIEs’ assets, liabilities, and results of operations are included in the Company’s consolidated financial statements.

88

Note 6. Variable Interest Entities (continued)

The following table summarizes the carrying amounts of the consolidated VIEs’ assets and liabilities included in the Company’s statements of financial condition and are adjusted for intercompany eliminations. All assets presented can be used only to settle obligations of the consolidated VIEs and all liabilities presented consist of liabilities for which creditors and other beneficial interest holders therein have no recourse to the general credit of the Company.

	December 31, 2015			December 31, 2014
(Dollars in thousands)	CDE (NMTC)		LIHTC	CDE (NMTC)	LIHTC
Assets
Loans receivable	$	57,126	—	36,077	—
Premises and equipment, net	—		13,503	—	13,106
Accrued interest receivable	117		—	116	—
Other assets	887		542	616	258
Total assets	$	58,130	14,045	36,809	13,364
Liabilities
Other borrowed funds	$	4,555	1,640	4,555	1,690
Accrued interest payable	4		5	4	5
Other liabilities	139		—	185	—
Total liabilities	$	4,698	1,645	4,744	1,695

The following table summarizes the net investment loss of the consolidated VIEs and the associated tax credits included in the Company’s statements of operations during the years ended December 31, 2015 and 2014. The net investment loss was included in income before income taxes on the Company’s statements of operations.

	Years ended
	December 31, 2015					December 31, 2014
(Dollars in thousands)	CDE (NMTC)			LIHTC		CDE (NMTC)		LIHTC
VIE loss	$	(1,286	)	(974	)	(879	)	(1,082	)
Federal income tax credits	2,138			1,175		1,744		1,270

Unconsolidated Variable Interest Entities

The Company owns the following trust subsidiaries, each of which issued trust preferred securities as Tier 1 capital instruments: Glacier Capital Trust II, Glacier Capital Trust III, Glacier Capital Trust IV, Citizens (ID) Statutory Trust I, Bank of the San Juans Bancorporation Trust I, First Company Statutory Trust 2001, and First Company Statutory Trust 2003. The trust subsidiaries have no assets, operations, revenues or cash flows other than those related to the issuance, administration and repayment of the securities held by third parties. The trust subsidiaries are not included in the Company’s consolidated financial statements because the sole asset of each trust subsidiary is a receivable from the Company, even though the Company owns all of the voting equity shares of the trust subsidiaries, has fully guaranteed the obligations of the trust subsidiaries and may have the right to redeem the third party securities under certain circumstances. The Company reports the trust preferred securities issued to the trust subsidiaries as subordinated debentures on the Company’s statements of financial condition.

89

Note 7. Deposits

Time deposits that meet or exceed the Federal Deposit Insurance Corporation Insurance limit of $250,000 at December 31, 2015 and 2014 were $258,573,000 and $314,752,000, respectively.

The scheduled maturities of time deposits are as follows:

(Dollars in thousands)	Amount
Years ending December 31,
2016	$	775,227
2017	149,999
2018	56,554
2019	40,696
2020	36,674
Thereafter	1,500
	$	1,060,650

The Company reclassified $2,966,000 and $4,385,000 of overdraft demand deposits to loans as of December 31, 2015 and 2014, respectively. The Company has entered into deposit transactions with its executive officers, directors and their affiliates. The aggregate amount of deposits with such related parties at December 31, 2015 and 2014 was $15,730,000 and $16,287,000, respectively.

Note 8. Borrowings

The Company’s repurchase agreements totaled $423,414,000 and $397,107,000 at December 31, 2015 and 2014, respectively, and are secured by investment securities with carrying values of $446,838,000 and $479,345,000, respectively. Securities are pledged to customers at the time of the transaction in an amount at least equal to the outstanding balance and are held in custody accounts by third parties. The fair value of collateral is continually monitored and additional collateral is provided as deemed appropriate.

The following tables summarize the carrying value of the Company’s repurchase agreements by remaining contractual maturity and category of collateral:

	December 31, 2015
	Remaining Contractual Maturity of the Agreements
(Dollars in thousands)	Overnight and Continuous		Up to 30 Days	Total
U.S. government sponsored enterprises	$	12,507	—	12,507
Residential mortgage-backed securities	408,460		2,447	410,907
Total	$	420,967	2,447	423,414

	December 31, 2014
	Remaining Contractual Maturity of the Agreements
(Dollars in thousands)	Overnight and Continuous		Up to 30 Days	Total
Residential mortgage-backed securities	$	391,997	5,110	397,107

90

Note 8. Borrowings (continued)

The Company’s FHLB advances bear a fixed rate of interest and are subject to restrictions or penalties in the event of prepayment. The advances are collateralized by specifically pledged loans and investment securities, FHLB stock owned by the Company, and a blanket assignment of the unpledged qualifying loans and investments. The scheduled maturities of FHLB advances consist of the following:

	December 31, 2015				December 31, 2014
(Dollars in thousands)	Amount		Weighted Rate		Amount		Weighted Rate
Maturing within one year	$	185,091	1.02	%	$	93,979	2.81	%
Maturing one year through two years	179		4.19	%	45,042		2.99	%
Maturing two years through three years	70,597		1.01	%	—		—	%
Maturing three years through four years	167		3.79	%	20,250		2.83	%
Maturing four years through five years	945		4.98	%	174		4.74	%
Thereafter	137,152		3.12	%	137,499		3.12	%
Total	$	394,131	1.76	%	$	296,944	2.98	%

With respect to $200,000,000 of FHLB advances at December 31, 2015, FHLB holds put options that will be exercised on the quarterly measurement date when 3-month LIBOR is 8 percent or greater. The FHLB put option maturities range from 2016 to 2021 and the interest rates range from 2.73 percent to 3.43 percent.

The Company’s remaining borrowings consisted of capital lease obligations and other debt obligations through consolidation of certain VIEs. At December 31, 2015, the Company had $255,000,000 in unsecured lines of credit which are typically renewed on an annual basis with various correspondent entities.

Note 9. Subordinated Debentures

Trust preferred securities were issued by the Company’s trust subsidiaries, the common stock of which is wholly-owned by the Company, in conjunction with the Company issuing subordinated debentures to the trust subsidiaries. The terms of the subordinated debentures are the same as the terms of the trust preferred securities. The Company guaranteed the payment of distributions and payments for redemption or liquidation of the trust preferred securities to the extent of funds held by the trust subsidiaries. The obligations of the Company under the subordinated debentures together with the guarantee and other back-up obligations, in the aggregate, constitute a full and unconditional guarantee by the Company of the obligations of all trusts under the trust preferred securities.

The trust preferred securities are subject to mandatory redemption upon repayment of the subordinated debentures at their stated maturity date or the earlier redemption in an amount equal to their liquidation amount plus accumulated and unpaid distributions to the date of redemption. Interest distributions are payable quarterly. The Company may defer the payment of interest at any time for a period not exceeding 20 consecutive quarters provided that the deferral period does not extend past the stated maturity. During any such deferral period, distributions on the trust preferred securities will also be deferred and the Company’s ability to pay dividends on its common shares will be restricted.

Subject to prior approval by the FRB, the trust preferred securities may be redeemed at par prior to maturity at the Company’s option on or after the redemption date. All of the Company’s trust preferred securities have reached the redemption date and could be redeemed at the Company’s option. The trust preferred securities may also be redeemed at any time in whole (but not in part) for the Trusts in the event of unfavorable changes in laws or regulations that result in 1) subsidiary trusts becoming subject to federal income tax on income received on the subordinated debentures; 2) interest payable by the Company on the subordinated debentures becoming non-deductible for federal tax purposes; 3) the requirement for the trusts to register under the Investment Company Act of 1940, as amended; or 4) loss of the ability to treat the trust preferred securities as Tier 1 capital under the FRB capital adequacy guidelines.

For regulatory capital purposes, the FRB has allowed bank holding companies to continue to include trust preferred securities in Tier 1 capital up to a certain limit. Provisions of the Dodd-Frank Wall Street Reform and Consumer Protection Act (“Dodd-Frank Act”) require the FRB to exclude trust preferred securities from Tier 1 capital, but a permanent grandfather provision applicable to the Company permits bank holding companies with consolidated assets of less than $15 billion to continue counting existing trust preferred securities as Tier 1 capital until they mature, even after the Company’s total assets exceed $15 billion. All of the Company’s trust preferred securities qualified as Tier 1 capital instruments at December 31, 2015. For additional information on regulatory capital, see Note 11.

91

Note 9. Subordinated Debentures (continued)

The terms of the subordinated debentures, arranged by maturity date, are reflected in the table below. The amounts include fair value adjustments from acquisitions.

	December 31, 2015				Variable Rate Structure	Maturity Date
(Dollars in thousands)	Balance		Rate
First Company Statutory Trust 2001	$	3,144	3.629	%	3 mo LIBOR plus 3.30%	07/31/2031
First Company Statutory Trust 2003	2,316		3.576	%	3 mo LIBOR plus 3.25%	03/26/2033
Glacier Capital Trust II	46,393		3.071	%	3 mo LIBOR plus 2.75%	04/07/2034
Citizens (ID) Statutory Trust I	5,155		3.176	%	3 mo LIBOR plus 2.65%	06/17/2034
Glacier Capital Trust III	36,083		1.611	%	3 mo LIBOR plus 1.29%	04/07/2036
Glacier Capital Trust IV	30,928		2.082	%	3 mo LIBOR plus 1.57%	09/15/2036
Bank of the San Juans Bancorporation Trust I	1,829		2.234	%	3 mo LIBOR plus 1.82%	03/01/2037
	$	125,848

Note 10. Derivatives and Hedging Activities

The Company is exposed to certain risk relating to its ongoing business operations. The primary risk managed by using derivative instruments is interest rate risk. Interest rate swaps are entered into to manage interest rate risk associated with the Company’s forecasted variable rate borrowings. The Company recognizes interest rate swaps as either assets or liabilities at fair value in the statements of financial condition, after taking into account the effects of bilateral collateral and master netting agreements. These agreements allow the Company to settle all interest rate swap agreements held with a single counterparty on a net basis, and to offset net interest rate swap derivative positions with related collateral, where applicable.

The interest rate swaps on variable rate borrowings were designated as cash flow hedges and were over-the-counter contracts. The contracts were entered into by the Company with a single counterparty, and the specific terms and conditions were negotiated, including forecasted notional amounts, interest rates and maturity dates. The Company is exposed to credit-related losses in the event of nonperformance by the counterparty to the agreements. The Company controls the counterparty credit risk by maintaining bilateral collateral agreements and through monitoring policy and procedures. The Company only conducts business with primary dealers and believes that the credit risk inherent in these contracts was not significant.

The Company’s interest rate swap derivative financial instruments as of December 31, 2015 are as follows:

(Dollars in thousands)	Forecasted Notional  Amount		Variable Interest Rate 1	Fixed Interest Rate 1		Payment Term
Interest rate swap	$	160,000	3 month LIBOR	3.378	%	Oct. 21, 2014 - Oct. 21, 2021
Interest rate swap	100,000		3 month LIBOR	2.498	%	Nov. 30, 2015 - Nov. 30, 2022

__________

¹The Company pays the fixed interest rate and the counterparty pays the Company the variable interest rate.

The hedging strategy converts the LIBOR-based variable interest rate on borrowings to a fixed interest rate, thereby protecting the Company from interest rate variability.

92

Note 10. Derivatives and Hedging Activities (continued)

The interest rate swaps with the $160,000,000 and $100,000,000 notional amounts began their payment terms in October 2014 and November 2015, respectively. The Company designated wholesale deposits as the cash flow hedge and these deposits were determined to be fully effective during the current and prior year. As such, no amount of ineffectiveness has been included in the Company’s statements of operations for the years ended December 31, 2015 and 2014. Therefore, the aggregate fair value of the interest rate swaps was recorded in other liabilities with changes recorded in other comprehensive income. The Company expects the hedges to remain highly effective during the remaining terms of the interest rate swaps. Interest expense recorded on the interest rate swaps totaled $5,695,000 and $1,066,000 during 2015 and 2014, respectively, and is reported as a component of interest expense on deposits. Unless the interest rate swaps are terminated during the next year, the Company expects $7,903,000 of the unrealized loss reported in other comprehensive income at December 31, 2015 to be reclassified to interest expense during the next twelve months.

The following table presents the pre-tax gains or losses recorded in accumulated other comprehensive income and the Company’s statements of operations relating to the interest rate swap derivative financial instruments:

	Years ended
(Dollars in thousands)	December 31, 2015			December 31, 2014		December 31, 2013
Interest rate swaps
Amount of (loss) gain recognized in OCI (effective portion)	$	(7,857	)	(19,557	)	18,728
Amount of loss reclassified from OCI to interest expense	(5,025		)	(993	)	—
Amount of loss recognized in other non-interest expense (ineffective portion)	—			—		—

The following table discloses the offsetting of financial liabilities and interest rate swap derivative liabilities. There were no interest rate swap derivative assets at the dates presented.

	December 31, 2015				December 31, 2014
(Dollars in thousands)	Gross Amounts of Recognized Liabilities		Gross Amounts Offset in the Statements of Financial Position	Net Amounts of Liabilities Presented in the Statements of Financial Position	Gross Amounts of Recognized Liabilities	Gross Amounts Offset in the Statements of Financial Position	Net Amounts of Liabilities Presented in the Statements of Financial Position
Interest rate swaps	$	19,499	—	19,499	16,668	—	16,668

Pursuant to the interest rate swap agreements, the Company pledged collateral to the counterparty in the form of investment securities totaling $25,730,000 at December 31, 2015. There was $0 collateral pledged from the counterparty to the Company as of December 31, 2015. There is the possibility that the Company may need to pledge additional collateral in the future if there were declines in the fair value of the interest rate swap derivative financial instruments versus the collateral pledged.

Note 11. Regulatory Capital

The Federal Reserve has adopted capital adequacy guidelines that are used to assess the adequacy of capital in supervising a bank holding company. Prior to 2015, the regulatory capital requirements effective for the Company followed the Capital Accord of the Basel Committee on Banking Supervision (“Basel I”). The federal banking agencies implemented final rules (the “Final Rules”) to establish a new comprehensive regulatory capital framework with a phase-in period beginning on January 1, 2015 and ending on January 1, 2019. The Final Rules implemented the third installment of the Basel Accords (“Basel III”) regulatory capital reforms and changes required by the Dodd-Frank Act and substantially amend the regulatory risk-based capital rules applicable to the Company. Basel III redefines the regulatory capital elements and minimum capital ratios, introduces regulatory capital buffers above those minimums, revises rules for calculating risk-weighted assets and adds a new component of Tier 1 capital called Common Equity Tier 1, which includes common equity and retained earnings and excludes preferred equity.

93

Note 11. Regulatory Capital (continued)

Prompt corrective action regulations provide the following classifications: well capitalized, adequately capitalized, undercapitalized, significantly undercapitalized and critically undercapitalized. If undercapitalized, capital distributions (including payment of a dividend) are generally restricted, as is paying management fees to its bank holding company. Failure to meet minimum capital requirements set forth in the table below can initiate certain mandatory and possible additional discretionary actions by regulators that, if undertaken, could have a direct material effect on the Company’s and Bank’s financial condition. The Company’s and Bank’s capital amounts and classification are also subject to qualitative judgments by the regulators about components, risk weightings and other factors.

At December 31, 2015 and 2014, the most recent regulatory notifications categorized the Company and Bank as well capitalized under the regulatory framework for prompt corrective action. To be well capitalized, the Bank must maintain minimum total capital, Tier 1 capital, Common Tier 1 capital and Tier 1 Leverage ratios as set forth in the table below. There are no conditions or events since December 31, 2015 that management believes have changed the Company’s or Bank’s risk-based capital category.

The following tables illustrate the FRB’s adequacy guidelines and the Company’s and the Bank’s compliance with those guidelines:

	December 31, 2015
	Actual				Required for Capital Adequacy Purposes				To Be Well Capitalized Under Prompt Corrective Action Regulations
(Dollars in thousands)	Amount		Ratio		Amount		Ratio		Amount		Ratio
Total capital (to risk-weighted assets)
Consolidated	$	1,131,460	17.17	%	$	527,160	8.00	%	N/A		N/A
Glacier Bank	1,093,669		16.66	%	525,228		8.00	%	656,535		10.00	%
Tier 1 capital (to risk-weighted assets)
Consolidated	$	1,048,505	15.91	%	$	395,370	6.00	%	N/A		N/A
Glacier Bank	1,010,981		15.40	%	393,921		6.00	%	525,228		8.00	%
Common Equity Tier 1 (to risk-weighted assets)
Consolidated	$	926,523	14.06	%	$	296,528	4.50	%	N/A		N/A
Glacier	1,010,981		15.40	%	295,441		4.50	%	426,748		6.50	%
Tier 1 capital (to average assets)
Consolidated	$	1,048,505	12.01	%	$	349,066	4.00	%	N/A		N/A
Glacier Bank	1,010,981		11.66	%	346,715		4.00	%	$	433,394	5.00	%

	December 31, 2014
	Actual				Required for Capital Adequacy Purposes				To Be Well Capitalized Under Prompt Corrective Action Regulations
(Dollars in thousands)	Amount		Ratio		Amount		Ratio		Amount		Ratio
Total capital (to risk-weighted assets)
Consolidated	$	1,065,282	18.93	%	$	450,240	8.00	%	$	562,800	10.00	%
Glacier Bank	1,023,669		18.25	%	448,739		8.00	%	560,924		10.00	%
Tier 1 capital (to risk-weighted assets)
Consolidated	$	994,197	17.67	%	$	225,120	4.00	%	$	337,680	6.00	%
Glacier Bank	952,815		16.99	%	224,370		4.00	%	336,554		6.00	%
Tier 1 capital (to average assets)
Consolidated	$	994,197	12.45	%	$	319,505	4.00	%	N/A		N/A
Glacier Bank	952,815		12.03	%	316,938		4.00	%	$	396,173	5.00	%

__________

N/A - Not applicable

Current guidance from the Federal Reserve provides, among other things, that dividends per share on the Company’s common stock generally should not exceed earnings per share, measured over the previous four fiscal quarters. The Bank is also subject to Montana state law and cannot declare a dividend greater than the previous two years’ net earnings without providing notice to the state.

94

Note 12. Stock-based Compensation Plan

The Company has two stock-based compensation plans in effect at December 31, 2015. The 2005 Stock Incentive Plan expired in April 2015, but still has non-vested restricted stock awards at December 31, 2015. The 2015 Stock Incentive Plan provides incentives and awards to select employees and directors of the Company and permits the granting of stock options, share appreciation rights, restricted shares, restricted share units, unrestricted shares and performance awards. At December 31, 2015, the number of shares available to award to employees and directors under the 2015 Stock Incentive Plan was 2,485,765.

Stock Options

The Company granted stock options to certain full-time employees and directors of the Company under the 2005 Stock Incentive Plan. There were no stock options granted during 2015, 2014 or 2013.

Compensation expense and the recognized income tax benefit related to stock options for the years ended December 31, 2015, 2014 and 2013 was not significant. There was no unrecognized compensation cost related to stock options as of December 31, 2015.

The total intrinsic value of options exercised during the years ended December 31, 2015, 2014 and 2013 was $13,000, $778,000 and $1,907,000, respectively, and the income tax benefit related to these exercises was $5,000, $302,000 and $742,000. Total cash received from options exercised during the years ended December 31, 2015, 2014 and 2013 was $17,000, $871,000 and $4,327,000.

Changes in shares granted for stock options for the year ended December 31, 2015 are summarized as follows:

	Options		Weighted- Average Exercise Price
Outstanding at December 31, 2014	1,000		$	16.73
Exercised	(1,000	)	16.73
Forfeited or expired	—		—
Outstanding at December 31, 2015	—		—
Exercisable at December 31, 2015	—		—

Restricted Stock Awards

The Company has awarded restricted stock to select employees and directors under the 2005 and 2015 Stock Incentive Plans. Common stock is issued as vesting restrictions lapse, which may be immediately or according to the terms of a vesting schedule. Restricted stock awards may not be sold, pledged or otherwise transferred until restrictions have lapsed. Under the 2005 Stock Incentive Plan, the recipient does not have the right to vote until the restricted stock award has vested but does have the right to receive dividends. Under the 2015 Stock Incentive Plan, the recipient does not have the right to vote or to receive dividends until the restricted stock award has vested. The fair value of the restricted stock awarded is the closing price of the Company’s common stock on the award date.

Compensation expense related to restricted stock awards for the years ended December 31, 2015, 2014 and 2013 was $2,470,000, $1,603,000 and $768,000, respectively, and the recognized income tax benefit related to this expense was $957,000, $622,000 and $299,000. As of December 31, 2015, total unrecognized compensation expense of $2,965,000 related to restricted stock awards is expected to be recognized over a weighted-average period of 2.0 years.

The fair value of restricted stock awards that vested during the years ended December 31, 2015, 2014 and 2013 was $1,761,000, $953,000 and $197,000, respectively, and the income tax benefit related to these awards was $795,000, $532,000 and $77,000, respectively. Upon vesting of restricted stock awards, the shares are issued from the Company’s authorized stock balance.

95

Note 12. Stock-based Compensation Plan (continued)

The following table summarizes the restricted stock award activity for the year ended December 31, 2015:

	Restricted Stock		Weighted- Average Grant Date Fair Value
Non-vested at December 31, 2014	162,053		$	22.04
Granted	133,414		25.35
Vested	(81,294	)	21.66
Forfeited	(8,184	)	24.36
Non-vested at December 31, 2015	205,989		24.24

The average remaining contractual term on non-vested restricted stock awards at December 31, 2015 is eleven months. The aggregate intrinsic value of the non-vested restricted stock awards at December 31, 2015 was $5,465,000.

Note 13. Employee Benefit Plans

The Company provides its employees with a comprehensive benefit program, including health, dental and vision insurance, life and accident insurance, long-term disability coverage, vacation and sick leave, 401(k) plan, profit sharing plan and a stock-based compensation plan. The Company has elected to self-insure certain costs related to employee health, dental and vision benefit programs. Costs resulting from noninsured losses are expensed as incurred. The Company has purchased insurance that limits its exposure on an individual claim basis for the employee health benefit programs.

401(k) Plan and Profit Sharing Plan

The Company’s 401(k) plan and profit sharing plan have safe harbor and employer discretionary components. To be considered eligible for the 401(k) and safe harbor components of the profit sharing plan, an employee must be 21 years of age and employed for three full months. Employees are eligible to participate in the 401(k) plan the first day of the month once they have met the eligibility requirements. To be considered eligible for the employer discretionary contribution of the profit sharing plan, an employee must be 21 years of age, worked one full calendar quarter, worked 501 hours in the plan year and be employed as of the last day of the plan year. Participants are at all times fully vested in all contributions.

The profit sharing plan contributions consists of a 3 percent non-elective safe harbor contribution fully funded by the Company and an employer discretionary contribution. The employer discretionary contribution depends on the Company’s profitability. The total profit sharing plan expense for the years ended December 31, 2015, 2014, and 2013 was $8,017,000, $7,107,000 and $5,862,000 respectively.

The 401(k) plan allows eligible employees to contribute up to 60 percent of their eligible annual compensation up to the limit set annually by the Internal Revenue Service (“IRS”). The Company matches an amount equal to 50 percent of the first 6 percent of an employee’s contribution. The Company’s contribution to the 401(k) for the years ended December 31, 2015, 2014 and 2013 was $2,629,000, $2,246,000, and $1,935,000, respectively.

Deferred Compensation Plans

The Company has non-funded deferred compensation plans for directors, senior officers and certain nonemployee service providers. The plans provide for participants’ elective deferral of cash payments of up to 50 percent of a participants’ salary and 100 percent of bonuses and directors fees. The total amount deferred for the plans was $720,000, $591,000, and $376,000, for the years ending December 31, 2015, 2014, and 2013, respectively. The participant receives an earnings credit at a rate equal to 50 percent of the Company’s return on average equity. The total earnings for the years ended December 31, 2015, 2014, and 2013 for the plans was $386,000, $369,000 and $515,000, respectively. In connection with several acquisitions, the Company assumed the obligations of deferred compensation plans for certain key employees. As of December 31, 2015 and 2014, the liability related to the obligations was $11,971,000 and $11,165,000, respectively, and was included in other liabilities. The total earnings for the years ended December 31, 2015, 2014, and 2013 for the acquired plans was insignificant.

96

Note 13. Employee Benefit Plans (continued)

Supplemental Executive Retirement Plan

The Company has a Supplemental Executive Retirement Plan (“SERP”) which is intended to supplement payments due to participants upon retirement under the Company’s other qualified plans. The Company credits the participant’s account on an annual basis for an amount equal to employer contributions that would have otherwise been allocated to the participant’s account under the tax-qualified plans were it not for limitations imposed by the IRS or the participation in the non-funded deferred compensation plan. Eligible employees include participants of the non-funded deferred compensation plan and employees whose benefits were limited as a result of IRS regulations. The Company’s required contribution to the SERP for the years ended December 31, 2015, 2014 and 2013 was $224,000, $151,000, and $76,000, respectively. The participant receives an earnings credit at a rate equal to 50 percent of the Company’s return on average equity. The total earnings for the years ended December 31, 2015, 2014, and 2013 for this plan was $69,000, $59,000, and $48,000, respectively.

Note 14. Other Expenses

Other expenses consists of the following:

	Years ended
(Dollars in thousands)	December 31, 2015		December 31, 2014	December 31, 2013
Debit card expenses	$	6,153	5,802	6,131
Consulting and outside services	5,525		4,179	3,243
VIE write-downs, losses and other expenses	4,528		4,231	4,210
Employee expenses	4,034		3,557	2,686
Postage	3,716		3,391	3,302
Checking and operating expenses	3,554		3,517	3,091
Printing and supplies	3,530		3,547	3,112
Telephone	3,353		2,911	2,498
Loan expenses	2,824		2,513	2,444
Accounting and audit fees	1,401		1,393	1,146
ATM expenses	1,082		1,268	1,087
Legal fees	1,082		1,455	1,728
Other	3,983		3,884	4,178
Total other expenses	$	44,765	41,648	38,856

Note 15. Federal and State Income Taxes

The following table is a summary of consolidated income tax expense:

	Years ended
(Dollars in thousands)	December 31, 2015			December 31, 2014	December 31, 2013
Current
Federal	$	28,705		21,860	18,377
State	9,374			8,118	7,007
Total current income tax expense	38,079			29,978	25,384
Deferred 1
Federal	(3,451		)	5,016	3,918
State	(629		)	915	715
Total deferred income tax (benefit) expense	(4,080		)	5,931	4,633
Total income tax expense	$	33,999		35,909	30,017

__________

¹  Includes tax benefit of operating loss carryforwards of $391,000, $0 and $0 for the years ended December 31, 2015, 2014, and 2013, respectively.

97

Note 15. Federal and State Income Taxes (continued)

Combined federal and state income tax expense differs from that computed at the federal statutory corporate tax rate as follows:

	Years ended
	December 31, 2015		December 31, 2014		December 31, 2013
Federal statutory rate	35.0	%	35.0	%	35.0	%
State taxes, net of federal income tax benefit	3.7	%	4.0	%	4.0	%
Tax-exempt interest income	(12.6	)%	(11.5	)%	(12.2	)%
Tax credits	(3.0	)%	(2.8	)%	(3.2	)%
Other, net	(0.5	)%	(0.5	)%	0.3	%
Effective tax rate	22.6	%	24.2	%	23.9	%

The tax effect of temporary differences which give rise to a significant portion of deferred tax assets and deferred tax liabilities are as follows:

(Dollars in thousands)	December 31, 2015			December 31, 2014
Deferred tax assets
Allowance for loan and lease losses	$	50,123		50,013
Other real estate owned	8,380			8,200
Deferred compensation	8,166			5,024
Interest rate swap agreements	7,554			6,467
Acquisition fair market value adjustments	5,842			5,302
Income tax credits and net operating loss carryforwards	3,590			4,652
Employee benefits	3,165			2,839
Other	5,433			4,290
Total gross deferred tax assets	92,253			86,787
Deferred tax liabilities
Available-for-sale securities	(8,812		)	(17,716	)
Deferred loan costs	(7,427		)	(6,419	)
Intangibles	(6,272		)	(4,290	)
FHLB stock dividends	(4,601		)	(10,342	)
Depreciation of premises and equipment	(2,376		)	(2,358	)
Other	(4,290		)	(3,925	)
Total gross deferred tax liabilities	(33,778		)	(45,050	)
Net deferred tax asset	$	58,475		41,737

The Company has federal net operating loss carryforwards of $8,882,000 expiring between 2029 and 2031. The Company has Colorado net operating loss carryforwards of $15,985,000 expiring between 2029 and 2031. The net operating loss carryforwards originated from bank acquisitions.

98

Note 15. Federal and State Income Taxes (continued)

The Company and the Bank file consolidated income tax returns in the following jurisdictions: federal, Montana, Idaho, Colorado and Utah. Although the Bank has operations in Wyoming and Washington, neither Wyoming nor Washington imposes a corporate-level income tax. All required income tax returns have been timely filed. The following schedule summarizes the years that remain subject to examination as of December 31, 2015:

	Years ended December 31,
Federal	2008, 2009, 2010, 2012, 2013 and 2014
Montana	2012, 2013 and 2014
Idaho	2009, 2010, 2011, 2012, 2013 and 2014
Colorado	2008, 2009, 2010, 2011, 2012, 2013 and 2014
Utah	2012, 2013 and 2014

The Company had no unrecognized income tax benefits as of December 31, 2015 and 2014. The Company recognizes interest related to unrecognized income tax benefits in interest expense and penalties are recognized in other expense. Interest expense and penalties recognized with respect to income tax liabilities for the years ended December 31, 2015, 2014, and 2013 was not significant. The Company had no accrued liabilities for the payment of interest or penalties at December 31, 2015 and 2014.

The Company has assessed the need for a valuation allowance and determined that a valuation allowance was not necessary at December 31, 2015 and 2014. The Company believes that it is more-likely-than-not that the Company’s deferred tax assets will be realizable by offsetting future taxable income from reversing taxable temporary differences and anticipated future taxable income (exclusive of reversing temporary differences). In its assessment, the Company considered its strong earnings history, no history of income tax credit carryforwards expiring unused, and no future net operating losses (for tax purposes) are expected.

Retained earnings at December 31, 2015 includes $3,600,000 for which no provision for federal income tax has been made. This amount represents the base year reserve for bad debts, which is essentially an allocation of earnings to pre-1988 bad debt deductions for federal income tax purposes only. This amount is treated as a permanent difference and deferred taxes are not recognized unless it appears that this bad debt reserve will be reduced and thereby result in taxable income in the foreseeable future. The Company is not currently contemplating any changes in its business or operations which would result in a recapture of this reserve for bad debts for federal income tax purposes.

99

Note 16. Accumulated Other Comprehensive Income

The following table illustrates the activity within accumulated other comprehensive income by component, net of tax:

(Dollars in thousands)	Gains on Available-For-Sale Securities			(Losses) Gains on Derivatives Used for Cash Flow Hedges		Total
Balance at December 31, 2012	$	58,245		(10,283	)	47,962
Other comprehensive (loss) income before reclassification	(49,943		)	11,443		(38,500	)
Amounts reclassified from accumulated other comprehensive income	183			—		183
Net current period other comprehensive (loss) income	(49,760		)	11,443		(38,317	)
Balance at December 31, 2013	8,485			1,160		9,645
Other comprehensive income (loss) before reclassification	19,335			(11,969	)	7,366
Amounts reclassified from accumulated other comprehensive income	125			608		733
Net current period other comprehensive income (loss)	19,460			(11,361	)	8,099
Balance at December 31, 2014	27,945			(10,201	)	17,744
Other comprehensive loss before reclassification	(13,968		)	(4,823	)	(18,791	)
Amounts reclassified from accumulated other comprehensive income	(42		)	3,078		3,036
Net current period other comprehensive loss	(14,010		)	(1,745	)	(15,755	)
Balance at December 31, 2015	$	13,935		(11,946	)	1,989

Note 17. Earnings Per Share

Basic earnings per share is computed by dividing net income by the weighted-average number of shares of common stock outstanding during the period presented. Diluted earnings per share is computed by including the net increase in shares as if dilutive outstanding stock options were exercised and restricted stock awards were vested, using the treasury stock method.

Basic and diluted earnings per share has been computed based on the following:

	Years ended
(Dollars in thousands, except per share data)	December 31, 2015		December 31, 2014	December 31, 2013
Net income available to common stockholders, basic and diluted	$	116,127	112,755	95,644
Average outstanding shares - basic	75,542,455		74,641,957	73,191,713
Add: dilutive stock options and awards	53,126		45,358	68,565
Average outstanding shares - diluted	75,595,581		74,687,315	73,260,278
Basic earnings per share	$	1.54	1.51	1.31
Diluted earnings per share	$	1.54	1.51	1.31

There were 0, 0 and 38,915 stock options or restricted stock awards excluded from the diluted average outstanding share calculation for the years ended December 31, 2015, 2014, and 2013, respectively, because to do so would have been anti-dilutive for those periods. Anti-dilution occurs when the exercise price of a stock option or the unrecognized compensation cost per share of a restricted stock award exceeds the market price of the Company’s stock.

100

Note 18. Parent Holding Company Information (Condensed)

The following condensed financial information was the unconsolidated information for the parent holding company:

Condensed Statements of Financial Condition

(Dollars in thousands)	December 31, 2015		December 31, 2014
Assets
Cash on hand and in banks	$	1,854	4,019
Interest bearing cash deposits	46,808		51,127
Cash and cash equivalents	48,662		55,146
Investment securities, available-for-sale	65		91
Other assets	11,553		8,511
Investment in subsidiaries	1,175,844		1,121,937
Total assets	$	1,236,124	1,185,685
Liabilities and Stockholders’ Equity
Dividends payable	$	22,893	22,557
Subordinated debentures	125,848		125,705
Other liabilities	10,733		9,376
Total liabilities	159,474		157,638
Common stock	761		750
Paid-in capital	736,368		708,356
Retained earnings	337,532		301,197
Accumulated other comprehensive income	1,989		17,744
Total stockholders’ equity	1,076,650		1,028,047
Total liabilities and stockholders’ equity	$	1,236,124	1,185,685

Condensed Statements of Operations and Comprehensive Income

	Years ended
(Dollars in thousands)	December 31, 2015		December 31, 2014	December 31, 2013
Income
Dividends from subsidiaries	$	109,000	78,500	65,445
Loss on sale of investments	—		—	(3,248	)
Other income	196		199	966
Intercompany charges for services	10,562		9,283	7,387
Total income	119,758		87,982	70,550
Expenses
Compensation and employee benefits	13,205		10,773	9,175
Other operating expenses	7,313		6,824	6,536
Total expenses	20,518		17,597	15,711
Income before income tax benefit and equity in undistributed net income of subsidiaries	99,240		70,385	54,839
Income tax benefit	3,105		2,919	3,676
Income before equity in undistributed net income of subsidiaries	102,345		73,304	58,515
Equity in undistributed net income of subsidiaries	13,782		39,451	37,129
Net Income	$	116,127	112,755	95,644
Comprehensive Income	$	100,372	120,854	57,327

101

Note 18. Parent Holding Company Information (Condensed) (continued)

Condensed Statements of Cash Flows

	Years ended
(Dollars in thousands)	December 31, 2015			December 31, 2014		December 31, 2013
Operating Activities
Net income	$	116,127		112,755		95,644
Adjustments to reconcile net income to net cash provided by operating activities:
Subsidiary income in excess of dividends distributed	(13,782		)	(39,451	)	(37,129	)
Loss on sale of investments	—			—		3,248
Excess tax (benefits) deficiencies from stock-based compensation	(102		)	(138	)	223
Net change in other assets and other liabilities	307			140		2,575
Net cash provided by operating activities	102,550			73,306		64,561
Investing Activities
Sales of available-for-sale securities	—			—		23,990
Maturities, prepayments and calls of available-for-sale securities	—			—		2,571
Changes in investment securities and other stock - intercompany	—			—		(946	)
Net addition of premises and equipment	(1,405		)	(179	)	(603	)
Net sale (purchase) of non-marketable equity securities	22			(667	)	—
Equity contributions to subsidiaries	(28,457		)	(18,115	)	(11,336	)
Net cash (used in) provided by investing activities	(29,840		)	(18,961	)	13,676
Financing Activities
Net increase in other borrowed funds	143			143		144
Cash dividends paid	(79,456		)	(50,944	)	(44,232	)
Excess tax benefits (deficiencies) from stock-based compensation	102			138		(223	)
Stock-based compensation activity	17			785		4,326
Net cash used in financing activities	(79,194		)	(49,878	)	(39,985	)
Net (decrease) increase in cash and cash equivalents	(6,484		)	4,467		38,252
Cash and cash equivalents at beginning of year	55,146			50,679		12,427
Cash and cash equivalents at end of year	$	48,662		55,146		50,679

102

Note 19. Unaudited Quarterly Financial Data

Summarized unaudited quarterly financial data is as follows:

	Quarters ended 2015
(Dollars in thousands, except per share data)	March 31		June 30	September 30	December 31
Interest income	$	77,486	78,617	80,367	83,211
Interest expense	7,382		7,369	7,309	7,215
Net interest income	70,104		71,248	73,058	75,996
Provision for loan losses	765		282	826	411
Net interest income after provision for loan losses	69,339		70,966	72,232	75,585
Non-interest income	22,693		25,802	25,799	24,467
Non-interest expense	55,497		59,945	59,112	62,203
Income before income taxes	36,535		36,823	38,919	37,849
Federal and state income tax expense	8,865		7,488	9,305	8,341
Net income	$	27,670	29,335	29,614	29,508
Basic earnings per share	$	0.37	0.39	0.39	0.39
Diluted earnings per share	$	0.37	0.39	0.39	0.39

	Quarters ended 2014
(Dollars in thousands, except per share data)	March 31		June 30	September 30	December 31
Interest income	$	74,087	73,963	75,690	76,179
Interest expense	6,640		6,528	6,430	7,368
Net interest income	67,447		67,435	69,260	68,811
Provision for loan losses	1,122		239	360	191
Net interest income after provision for loan losses	66,325		67,196	68,900	68,620
Non-interest income	19,388		22,504	24,432	23,978
Non-interest expense	50,070		52,673	54,238	55,698
Income before income taxes	35,643		37,027	39,094	36,900
Federal and state income tax expense	8,913		8,350	9,800	8,846
Net income	$	26,730	28,677	29,294	28,054
Basic earnings per share	$	0.36	0.38	0.40	0.37
Diluted earnings per share	$	0.36	0.38	0.40	0.37

103

Note 20. Fair Value of Assets and Liabilities

Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. There is a fair value hierarchy which requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. The three levels of inputs that may be used to measure fair value are as follows:

Level 1    Quoted prices in active markets for identical assets or liabilities

Level 2 Observable inputs other than Level 1 prices, such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities

Level 3 Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities

Transfers in and out of Level 1 (quoted prices in active markets), Level 2 (significant other observable inputs) and Level 3 (significant unobservable inputs) are recognized on the actual transfer date. There were no transfers between fair value hierarchy levels during the years ended December 31, 2015 and 2014.

Recurring Measurements

The following is a description of the inputs and valuation methodologies used for assets and liabilities measured at fair value on a recurring basis, as well as the general classification of such assets and liabilities pursuant to the valuation hierarchy. There have been no significant changes in the valuation techniques during the period ended December 31, 2015.

Investment securities, available-for-sale: fair value for available-for-sale securities is estimated by obtaining quoted market prices for identical assets, where available. If such prices are not available, fair value is based on independent asset pricing services and models, the inputs of which are market-based or independently sourced market parameters, including but not limited to, yield curves, interest rates, volatilities, market spreads, prepayments, defaults, recoveries, cumulative loss projections, and cash flows. Such securities are classified in Level 2 of the valuation hierarchy. Where Level 1 or Level 2 inputs are not available, such securities are classified as Level 3 within the hierarchy.

Fair value determinations of available-for-sale securities are the responsibility of the Company’s corporate accounting and treasury departments. The Company obtains fair value estimates from independent third party vendors on a monthly basis. The vendors’ pricing system methodologies, procedures and system controls are reviewed to ensure they are appropriately designed and operating effectively. The Company reviews the vendors’ inputs for fair value estimates and the recommended assignments of levels within the fair value hierarchy. The review includes the extent to which markets for investment securities are determined to have limited or no activity, or are judged to be active markets. The Company reviews the extent to which observable and unobservable inputs are used as well as the appropriateness of the underlying assumptions about risk that a market participant would use in active markets, with adjustments for limited or inactive markets. In considering the inputs to the fair value estimates, the Company places less reliance on quotes that are judged to not reflect orderly transactions, or are non-binding indications. In assessing credit risk, the Company reviews payment performance, collateral adequacy, third party research and analyses, credit rating histories and issuers’ financial statements. For those markets determined to be inactive or limited, the valuation techniques used are models for which management has verified that discount rates are appropriately adjusted to reflect illiquidity and credit risk.

Interest rate swap derivative financial instruments: fair values for interest rate swap derivative financial instruments are based upon the estimated amounts to settle the contracts considering current interest rates and are calculated using discounted cash flows that are observable or that can be corroborated by observable market data and, therefore, are classified within Level 2 of the valuation hierarchy. The inputs used to determine fair value include the 3 month LIBOR forward curve to estimate variable rate cash inflows and the Fed Funds Effective Swap Rate to estimate the discount rate. The estimated variable rate cash inflows are compared to the fixed rate outflows and such difference is discounted to a present value to estimate the fair value of the interest rate swaps. The Company also obtains and compares the reasonableness of the pricing from an independent third party.

104

Note 20. Fair Value of Assets and Liabilities (continued)

The following tables disclose the fair value measurement of assets and liabilities measured at fair value on a recurring basis:

			Fair Value Measurements At the End of the Reporting Period Using
(Dollars in thousands)	Fair Value December 31, 2015		Quoted Prices in Active  Markets for Identical Assets (Level 1)	Significant Other Observable Inputs (Level 2)	Significant Unobservable Inputs (Level 3)
Investment securities, available-for-sale
U.S. government and federal agency	$	47,451	—	47,451	—
U.S. government sponsored enterprises	93,167		—	93,167	—
State and local governments	885,019		—	885,019	—
Corporate bonds	384,163		—	384,163	—
Residential mortgage-backed securities	1,200,960		—	1,200,960	—
Total assets measured at fair value on a recurring basis	$	2,610,760	—	2,610,760	—
Interest rate swaps	$	19,499	—	19,499	—
Total liabilities measured at fair value on a recurring basis	$	19,499	—	19,499	—

			Fair Value Measurements At the End of the Reporting Period Using
(Dollars in thousands)	Fair Value December 31, 2014		Quoted Prices in Active  Markets for Identical Assets (Level 1)	Significant Other Observable Inputs (Level 2)	Significant Unobservable Inputs (Level 3)
Investment securities, available-for-sale
U.S. government and federal agency	$	44	—	44	—
U.S. government sponsored enterprises	21,945		—	21,945	—
State and local governments	997,969		—	997,969	—
Corporate bonds	314,854		—	314,854	—
Residential mortgage-backed securities	1,052,616		—	1,052,616	—
Total assets measured at fair value on a recurring basis	$	2,387,428	—	2,387,428	—
Interest rate swaps	$	16,668	—	16,668	—
Total liabilities measured at fair value on a recurring basis	$	16,668	—	16,668	—

Non-recurring Measurements

The following is a description of the inputs and valuation methodologies used for assets recorded at fair value on a non-recurring basis, as well as the general classification of such assets pursuant to the valuation hierarchy. There have been no significant changes in the valuation techniques during the period ended December 31, 2015.

Other real estate owned: OREO is carried at the lower of fair value at acquisition date or current estimated fair value, less estimated cost to sell. Estimated fair value of OREO is based on appraisals or evaluations (new or updated). OREO is classified within Level 3 of the fair value hierarchy.

105

Note 20. Fair Value of Assets and Liabilities (continued)

Collateral-dependent impaired loans, net of ALLL: loans included in the Company’s loan portfolio for which it is probable that the Company will not collect all principal and interest due according to contractual terms are considered impaired. Estimated fair value of collateral-dependent impaired loans is based on the fair value of the collateral, less estimated cost to sell. Collateral-dependent impaired loans are classified within Level 3 of the fair value hierarchy.

The Company’s credit departments review appraisals for OREO and collateral-dependent loans, giving consideration to the highest and best use of the collateral. The appraisal or evaluation (new or updated) is considered the starting point for determining fair value. The valuation techniques used in preparing appraisals or evaluations (new or updated) include the cost approach, income approach, sales comparison approach, or a combination of the preceding valuation techniques. The key inputs used to determine the fair value of the collateral-dependent loans and OREO include selling costs, discounted cash flow rate or capitalization rate, and adjustment to comparables. Valuations and significant inputs obtained by independent sources are reviewed by the Company for accuracy and reasonableness. The Company also considers other factors and events in the environment that may affect the fair value. The appraisals or evaluations (new or updated) are reviewed at least quarterly and more frequently based on current market conditions, including deterioration in a borrower’s financial condition and when property values may be subject to significant volatility. After review and acceptance of the collateral appraisal or evaluation (new or updated), adjustments to the impaired loan or OREO may occur. The Company generally obtains appraisals or evaluations (new or updated) annually.

The following tables disclose the fair value measurement of assets with a recorded change during the period resulting from re-measuring the assets at fair value on a non-recurring basis:

			Fair Value Measurements At the End of the Reporting Period Using
(Dollars in thousands)	Fair Value December 31, 2015		Quoted Prices in Active  Markets for Identical Assets (Level 1)	Significant Other Observable Inputs (Level 2)	Significant Unobservable Inputs (Level 3)
Other real estate owned	$	7,609	—	—	7,609
Collateral-dependent impaired loans, net of ALLL	12,938		—	—	12,938
Total assets measured at fair value on a non-recurring basis	$	20,547	—	—	20,547

			Fair Value Measurements At the End of the Reporting Period Using
(Dollars in thousands)	Fair Value December 31, 2014		Quoted Prices in Active  Markets for Identical Assets (Level 1)	Significant Other Observable Inputs (Level 2)	Significant Unobservable Inputs (Level 3)
Other real estate owned	$	3,000	—	—	3,000
Collateral-dependent impaired loans, net of ALLL	15,480		—	—	15,480
Total assets measured at fair value on a non-recurring basis	$	18,480	—	—	18,480

106

Note 20. Fair Value of Assets and Liabilities (continued)

Non-recurring Measurements Using Significant Unobservable Inputs (Level 3)

The following tables present additional quantitative information about assets measured at fair value on a non-recurring basis and for which the Company has utilized Level 3 inputs to determine fair value:

	Fair Value		Quantitative Information about Level 3 Fair Value Measurements
(Dollars in thousands)	December 31, 2015		Valuation Technique	Unobservable Input	Range (Weighted- Average) 1
Other real estate owned	$	4,067	Sales comparison approach	Selling costs	7.0% - 10.0% (7.9%)
	3,542		Combined approach	Selling costs	8.0% - 8.0% (8.0%)
	$	7,609
Collateral-dependent impaired loans, net of ALLL	$	162	Cost approach	Selling costs	0.0% - 20.0% (6.1%)
	9,465		Sales comparison approach	Selling costs	8.0% - 20.0% (8.9%)
				Adjustment to comparables	0.0% - 5.0% (0.0%)
	3,311		Combined approach	Selling costs	10.0% - 10.0% (10.0%)
				Adjustment to comparables	20.0% - 20.0% (20.0%)
	$	12,938

	Fair Value		Quantitative Information about Level 3 Fair Value Measurements
(Dollars in thousands)	December 31, 2014		Valuation Technique	Unobservable Input	Range (Weighted- Average) 1
Other real estate owned	$	2,393	Sales comparison approach	Selling costs	0.0% - 10.0% (5.8%)
				Adjustment to comparables	0.0% - 7.0% (0.5%)
	607		Combined approach	Selling costs	10.0% - 10.0% (10.0%)
				Discount rate	10.0% - 10.0% (10.0%)
	$	3,000
Collateral-dependent impaired loans, net of ALLL	$	6	Cost approach	Selling costs	7.0% - 7.0% (7.0%)
	5,335		Income approach	Selling costs	8.0% - 10.0% (8.5%)
				Discount rate	8.3% - 12.0% (9.1%)
	6,330		Sales comparison approach	Selling costs	0.0% - 10.0% (8.3%)
				Adjustment to comparables	0.0% - 30.0% (3.5%)
	3,809		Combined approach	Selling costs	8.0% - 10.0% (9.2%)
				Adjustment to comparables	10.0% - 20.0% (16.2%)
	$	15,480

__________

¹ The range for selling costs and adjustments to comparables indicate reductions to the fair value.

107

Note 20. Fair Value of Assets and Liabilities (continued)

Fair Value of Financial Instruments

The following is a description of the methods used to estimate the fair value of all other assets and liabilities recognized at amounts other than fair value.

Cash and cash equivalents: fair value is estimated at book value.

Investment securities, held-to-maturity: fair value for held-to-maturity securities is estimated in the same manner as available-for-sale securities, which is described above.

Loans held for sale: fair value is estimated at book value.

Loans receivable, net of ALLL: fair value is estimated by discounting the future cash flows using the rates at which similar notes would be written for the same remaining maturities. The market rates used are based on current rates the Company would impose for similar loans and reflect a market participant assumption about risks associated with non-performance, illiquidity, and the structure and term of the loans along with local economic and market conditions. Estimated fair value of impaired loans is based on the fair value of the collateral, less estimated cost to sell, or the present value of the loan’s expected future cash flows (discounted at the loan’s effective interest rate). All impaired loans are classified as Level 3 and all other loans are classified as Level 2 within the valuation hierarchy.

Accrued interest receivable: fair value is estimated at book value.

Non-marketable equity securities: fair value is estimated at book value due to restrictions that limit the sale or transfer of such securities.

Deposits: fair value of term deposits is estimated by discounting the future cash flows using rates of similar deposits with similar maturities. The market rates used were obtained from an independent third party and reviewed by the Company. The rates were the average of current rates offered by the Company’s local competitors. The estimated fair value of demand, NOW, savings, and money market deposits is the book value since rates are regularly adjusted to market rates and transactions are executed at book value daily. Therefore, such deposits are classified in Level 1 of the valuation hierarchy. Certificate accounts and wholesale deposits are classified as Level 2 within the hierarchy.

Federal Home Loan Bank advances: fair value of non-callable FHLB advances is estimated by discounting the future cash flows using rates of similar advances with similar maturities. Such rates were obtained from current rates offered by FHLB. The estimated fair value of callable FHLB advances was obtained from FHLB and the model was reviewed by the Company.

Securities sold under agreements to repurchase and other borrowed funds: fair value of term repurchase agreements and other term borrowings is estimated based on current repurchase rates and borrowing rates currently available to the Company for repurchases and borrowings with similar terms and maturities. The estimated fair value for overnight repurchase agreements and other borrowings is book value.

Subordinated debentures: fair value of the subordinated debt is estimated by discounting the estimated future cash flows using current estimated market rates. The market rates used were averages of currently traded trust preferred securities with similar characteristics to the Company’s issuances and obtained from an independent third party.

Accrued interest payable: fair value is estimated at book value.

Off-balance sheet financial instruments: commitments to extend credit and letters of credit represent the principal categories of off-balance sheet financial instruments. Rates for these commitments are set at time of loan closing, such that no adjustment is necessary to reflect these commitments at market value. The Company has an insignificant amount of off-balance sheet financial instruments.

108

Note 20. Fair Value of Assets and Liabilities (continued)

The following tables present the carrying amounts, estimated fair values and the level within the fair value hierarchy of the Company’s financial instruments:

			Fair Value Measurements At the End of the Reporting Period Using
(Dollars in thousands)	Carrying Amount December 31, 2015		Quoted Prices in Active Markets for Identical Assets (Level 1)	Significant Other Observable Inputs (Level 2)	Significant Unobservable Inputs (Level 3)
Financial assets
Cash and cash equivalents	$	193,253	193,253	—	—
Investment securities, available-for-sale	2,610,760		—	2,610,760	—
Investment securities, held-to-maturity	702,072		—	729,513	—
Loans held for sale	56,514		56,514	—	—
Loans receivable, net of ALLL	4,948,984		—	4,851,934	132,649
Accrued interest receivable	44,524		44,524	—	—
Non-marketable equity securities	27,495		—	27,495	—
Total financial assets	$	8,583,602	294,291	8,219,702	132,649
Financial liabilities
Deposits	$	6,945,008	5,654,638	1,293,506	—
FHLB advances	394,131		—	401,530	—
Repurchase agreements and other borrowed funds	430,016		—	430,016	—
Subordinated debentures	125,848		—	81,840	—
Accrued interest payable	3,517		3,517	—	—
Interest rate swaps	19,499		—	19,499	—
Total financial liabilities	$	7,918,019	5,658,155	2,226,391	—

			Fair Value Measurements At the End of the Reporting Period Using
(Dollars in thousands)	Carrying Amount December 31, 2014		Quoted Prices in Active  Markets for Identical Assets (Level 1)	Significant Other Observable Inputs (Level 2)	Significant Unobservable Inputs (Level 3)
Financial assets
Cash and cash equivalents	$	442,409	442,409	—	—
Investment securities, available-for-sale	2,387,428		—	2,387,428	—
Investment securities, held-to-maturity	520,997		—	550,946	—
Loans held for sale	46,726		46,726	—	—
Loans receivable, net of ALLL	4,358,342		—	4,288,417	149,769
Accrued interest receivable	40,587		40,587	—	—
Non-marketable equity securities	52,868		—	52,868	—
Total financial assets	$	7,849,357	529,722	7,279,659	149,769
Financial liabilities
Deposits	$	6,345,212	4,928,771	1,421,234	—
FHLB advances	296,944		—	312,363	—
Repurchase agreements and other borrowed funds	404,418		—	404,418	—
Subordinated debentures	125,705		—	76,711	—
Accrued interest payable	4,155		4,155	—	—
Interest rate swaps	16,668		—	16,668	—
Total financial liabilities	$	7,193,102	4,932,926	2,231,394	—

109

Note 21. Contingencies and Commitments

The Company is a party to financial instruments with off-balance sheet risk in the normal course of business to meet the financing needs of its customers. These financial instruments include commitments to extend credit and letters of credit, and involve, to varying degrees, elements of credit risk. The Company’s exposure to credit loss in the event of nonperformance by the other party to the financial instrument for commitments to extend credit is represented by the contractual amount of those instruments. The Company uses the same credit policies in making commitments and conditional obligations as it does for on-balance sheet instruments.

The Company had the following outstanding commitments:

(Dollars in thousands)	December 31, 2015		December 31, 2014
Commitments to extend credit	$	1,240,923	960,180
Letters of credit	22,415		16,531
Total outstanding commitments	$	1,263,338	976,711

The Company is a defendant in legal proceedings arising in the normal course of business. In the opinion of management, the disposition of pending litigation will not have a material affect on the Company’s consolidated financial position, results of operations or liquidity.

Note 22. Mergers and Acquisitions

On October 31, 2015, the Company acquired 100 percent of the outstanding common stock of Cañon Bank Corporation and its wholly-owned subsidiary, Cañon National Bank, a community bank based in Cañon City, Colorado. Cañon provides banking services to individuals and businesses in south central Colorado, with banking offices located in Colorado Springs, Pueblo, Pueblo West, Cañon City, Colorado City, and Florence, Colorado. The acquisition expands the Company’s market into south central Colorado and further diversifies the Company’s loan, customer and deposit base. The branches of Cañon have become a part of the Bank of the San Juans bank division. The Cañon acquisition was valued at $31,308,000 and resulted in the Company issuing 554,206 shares of its common stock and $16,145,000 in cash in exchange for all of Cañon’s outstanding common stock shares. The fair value of the Company shares issued was determined on the basis of the closing market price of the Company’s common stock on the October 31, 2015 acquisition date. The excess of the fair value of consideration transferred over total identifiable net assets was recorded as goodwill. The goodwill arising from the acquisition consists largely of the synergies and economies of scale expected from combining the operations of the Company and Cañon. None of the goodwill is deductible for income tax purposes as the acquisition was accounted for as a tax-free exchange.

On February 28, 2015, the Company acquired 100 percent of the outstanding common stock of Montana Community Banks, Inc. and its wholly-owned subsidiary, Community Bank, Inc., a community bank based in Ronan, Montana. CB provides banking services to individuals and businesses in western Montana, with banking offices located in Missoula, Polson, Ronan and Pablo, Montana. The acquisition allowed the Company to add new markets in western Montana and complimented the Company’s presence in Missoula and Polson, Montana. The branches of CB have become a part of the Glacier Bank and First Security Bank of Missoula bank divisions. The CB acquisition was valued at $22,995,000 and resulted in the Company issuing 443,644 shares of its common stock and $12,219,000 in cash in exchange for all of CB’s outstanding common stock shares. The fair value of the Company shares issued was determined on the basis of the closing market price of the Company’s common stock on the February 28, 2015 acquisition date. The excess of the fair value of consideration transferred over total identifiable net assets was recorded as goodwill. The goodwill arising from the acquisition consists largely of the synergies and economies of scale expected from combining the operations of the Company and CB. None of the goodwill is deductible for income tax purposes as the acquisition was accounted for as a tax-free exchange.

110

Note 22. Mergers and Acquisitions (continued)

On August 31, 2014, the Company acquired 100 percent of the outstanding common stock of FNBR, a privately-owned company, and its wholly-owned subsidiary, First National Bank of the Rockies, a community bank based in Grand Junction, Colorado. First National Bank of the Rockies provides community banking services to individuals and businesses in northwestern Colorado, with banking offices located in Grand Junction, Steamboat Springs, Meeker, Rangely, Craig, Hayden and Oak Creek. As a result of the acquisition, the Company further diversified its loan and deposit customer base with its increased presence in the state of Colorado. The branches of FNBR were merged into Glacier Bank and became a part of the Bank of the San Juans division. The consideration paid by the Company to acquire FNBR was $31,817,000, which resulted in the Company issuing 555,732 shares of its common stock and $16,690,000 in cash in exchange for all of FNBR’s outstanding common stock. The fair value of the Company’s common stock shares issued was determined on the basis of the closing market price of the Company’s common stock shares on the August 31, 2014 acquisition date. The Company recorded a $680,000 bargain purchase gain due to the fair value of FNBR’s identifiable net assets exceeding the consideration transferred. The bargain purchase gain is included in other income in the Company’s consolidated statements of operations. Before recognizing the bargain purchase gain, the Company reassessed whether it correctly identified and valued each of the assets acquired and liabilities assumed. The objective of the reassessment process was to ensure that the measurements reflected consideration of all available information as of the acquisition date. The reassessment process included reviewing FNBR’s statement of financial condition to verify that all assets and liabilities had been identified and then re-evaluating and challenging again the procedures and the reasonableness of the significant assumptions utilized in determining the fair value of the identifiable assets and liabilities with respect to the acquisition date. The Company obtained fair value estimates from independent third party specialists for the significant identifiable assets and liabilities, including loans, investment securities and deposits. Following the reassessment process, the Company concluded that the consideration transferred and all of the assets acquired and liabilities assumed had been properly identified and valued.

The assets and liabilities of Cañon, CB and FNBR were recorded on the Company’s consolidated statements of financial condition at their estimated fair values as of the October 31, 2015, February 28, 2015 and August 31, 2014 acquisition dates, respectively, and their results of operations have been included in the Company’s consolidated statements of operations since those dates. The following table discloses the calculation of the fair value of the consideration transferred, the total identifiable net assets acquired and the resulting goodwill or bargain purchase gain arising from the Cañon, CB and FNBR acquisitions:

	Cañon		CB	FNBR
(Dollars in thousands)	October 31, 2015		February 28, 2015	August 31, 2014
Fair value of consideration transferred
Fair value of Company shares issued, net of equity issuance costs	$	15,163	10,776	15,127
Cash consideration for outstanding shares	16,145		12,219	16,690
Contingent consideration	—		—	—
Total fair value of consideration transferred	31,308		22,995	31,817
Recognized amounts of identifiable assets acquired and liabilities assumed
Identifiable assets acquired
Cash and cash equivalents	17,860		31,931	14,578
Investment securities	68,486		42,350	157,018
Loans receivable	159,759		84,689	137,488
Core deposit intangible	4,532		2,087	4,199
Accrued income and other assets	9,689		13,580	35,884
Total identifiable assets acquired	260,326		174,637	349,167
Liabilities assumed
Deposits	237,326		146,820	309,641
FHLB advances and repurchase agreements	—		3,292	—
Accrued expenses and other liabilities	1,487		2,667	7,029
Total liabilities assumed	238,813		152,779	316,670
Total identifiable net assets	21,513		21,858	32,497
Goodwill (bargain purchase gain) recognized	$	9,795	1,137	(680	)

111

Note 22. Mergers and Acquisitions (continued)

The fair value of the Cañon, CB and FNBR assets acquired includes loans with fair values of $159,759,000 and $84,689,000 and $137,488,000, respectively. The gross principal and contractual interest due under the Cañon, CB and FNBR contracts is $164,568,000, $88,817,000 and $146,019,000, respectively, all of which is expected to be collectible.

Core deposit intangible assets related to the Cañon, CB and FNBR acquisitions totaled $4,532,000, $2,087,000 and $4,199,000, respectively, all with estimated lives of 10 years.

The Company incurred $707,000 and $1,605,000, respectively, of Cañon and CB third-party acquisition-related costs during the year ended December 31, 2015. The Company incurred $552,000 of FNBR third-party acquisition-related costs during the year ended December 31, 2014. The expenses are included in other expense in the Company's consolidated statements of operations.

Total income consisting of net interest income and non-interest income of the acquired operations of Cañon was approximately $2,606,000 and net income was approximately $563,000 from October 31, 2015 to December 31, 2015. Total income consisting of net interest income and non-interest income of the acquired operations of CB was approximately $7,492,000 and net income was approximately $1,808,000 from February 28, 2015 to December 31, 2015. Total income consisting of net interest income and non-interest income of the acquired operations of FNBR was approximately $6,672,000 and net income was approximately $1,675,000 from August 31, 2014 to December 31, 2014.

The following unaudited pro forma summary presents consolidated information of the Company as if the Cañon and CB acquisitions had occurred on January 1, 2014:

	Years ended
(Dollars in thousands)	December 31, 2015		December 31, 2014
Net interest income and non-interest income	$	401,140	383,387
Net income	115,613		115,899

The following unaudited pro forma summary presents consolidated information of the Company as if the FNBR acquisition had occurred on January 1, 2013:

	Years ended
(Dollars in thousands)	December 31, 2014		December 31, 2013
Net interest income and non-interest income	$	371,772	340,393
Net income	113,364		99,275

112

Item 9. Changes in and Disagreements with Accountants on Accounting and Financial Disclosure

There have been no changes or disagreements with accountants on accounting and financial disclosure.

Item 9A. Controls and Procedures

Evaluation of Disclosure Controls and Procedures

An evaluation was carried out under the supervision and with the participation of the Company’s management, including the Chief Executive Officer (“CEO”) and Chief Financial Officer (“CFO”), of the effectiveness of the disclosure controls and procedures. Based on that evaluation, the CEO and CFO have concluded that as of the end of the period covered by this report, the disclosure controls and procedures are effective to provide reasonable assurance that information required to be disclosed by the Company in reports that are filed or submitted under the Securities Exchange Act of 1934 are recorded, processed, summarized and timely reported as provided in the SEC’s rules and forms. As a result of this evaluation, there were no significant changes in the internal control over financial reporting during the year ended December 31, 2015 that have materially affected, or are reasonable likely to materially affect, the internal control over financial reporting.

Management’s Report on Internal Control Over Financial Reporting

Management is responsible for establishing and maintaining effective internal control over financial reporting as it relates to its financial statements presented in conformity with GAAP. The Company’s internal control system was designed to provide reasonable assurance to the Company’s management and Board of Directors regarding the preparation and fair presentation of published financial statements in accordance with accounting principles generally accepted in the United States of America. Internal control over financial reporting includes self monitoring mechanisms and actions are taken to correct deficiencies as they are identified.

There are inherent limitations in any internal control, no matter how well designed, misstatements due to error or fraud may occur and not be detected, including the possibility of circumvention or overriding of controls. Accordingly, even an effective internal control system can provide only reasonable assurance with respect to financial statement preparation. Further, because of changes in conditions, the effectiveness of an internal control system may vary over time.

Management assessed its internal control structure over financial reporting as of December 31, 2015. This assessment was based on criteria for effective internal control over financial reporting described in the “Internal Control – Integrated Framework” issued by the Committee of Sponsoring Organizations of the Treadway Commission. Based on this assessment, management asserts that the Company maintained effective internal control over financial reporting as it relates to its financial statements presented in conformity with accounting principles generally accepted in the United States of America.

BKD, LLP, the independent registered public accounting firm that audited the financial statements for the year ended December 31, 2015, has issued an attestation report on the Company’s internal control over financial reporting. Such attestation report expresses an unqualified opinion on the effectiveness of the Company’s internal control over financial reporting as of December 31, 2015 and is included in “Item 8. Financial Statements and Supplementary Data.”

Item 9B. Other Information

None

113

PART III

Item 10. Directors, Executive Officers and Corporate Governance

Information regarding “Directors and Executive Officers” is set forth under the headings “Election of Directors” and “Management – Executive Officers who are not Directors” of the Company’s 2016 Annual Meeting Proxy Statement (“Proxy Statement”) and is incorporated herein by reference.

Information regarding “Compliance with Section 16(a) of the Exchange Act” is set forth under the section “Section 16(a) Beneficial Ownership Reporting Compliance” of the Company’s Proxy Statement and is incorporated herein by reference.

Information regarding the Company’s audit committee is set forth under the heading “Meetings and Committees of the Board of Directors – Committee Membership” in the Company’s Proxy Statement and is incorporated by reference.

Consistent with the requirements of the Sarbanes-Oxley Act, the Company has adopted a code of ethics applicable to its senior financial officers. The code of ethics can be accessed electronically by visiting the Company’s website at www.glacierbancorp.com and is attached to this annual report on Form 10-K as Exhibit 14.

Item 11. Executive Compensation

Information regarding “Executive Compensation” is set forth under the headings “Compensation of Directors” and “Executive Compensation” of the Company’s Proxy Statement and is incorporated herein by reference.

Information regarding “Compensation Committee Interlocks and Insider Participation” is set forth under the heading “Compensation of Directors - Compensation Committee Interlocks and Insider Participation” of the Company’s Proxy Statement and is incorporated herein by reference.

Information regarding the “Compensation Committee Report” is set forth under the heading “Report of Compensation Committee” of the Company’s Proxy Statement and is incorporated herein by reference.

Item 12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters

Information regarding “Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters” is set forth under the headings “Voting Securities and Principal Holders Thereof,” “Compensation Discussion and Analysis” and “Compensation of Directors” of the Company’s Proxy Statement and is incorporated herein by reference.

Item 13. Certain Relationships and Related Transactions, and Director Independence

Information regarding “Certain Relationships and Related Transactions, and Director Independence” is set forth under the headings “Transactions with Management” and “Corporate Governance – Director Independence” of the Company’s Proxy Statement and is incorporated herein by reference.

Item 14. Principal Accounting Fees and Services

Information regarding “Principal Accounting Fees and Services” is set forth under the heading “Auditors – Fees Paid to Independent Registered Public Accounting Firm” of the Company’s Proxy Statement and is incorporated herein by reference.

114

PART IV

Item 15. Exhibits, Financial Statement Schedules

List of Financial Statements and Financial Statement Schedules

(a)    The following documents are filed as a part of this report:

(1)    Financial Statements and

(2)    Financial Statement schedules required to be filed by Item 8 of this report.

(3)    The following exhibits are required by Item 601 of Regulation S-K and are included as part of this Form 10-K:

Exhibit No.	Exhibit
3(i)	Amended and Restated Articles of Incorporation 1
3(ii)	Amended and Restated Bylaws 1
10(a) *	Amended and Restated Deferred Compensation Plan effective January 1, 2008 2
10(b) *	Amended and Restated Supplemental Executive Retirement Agreement effective January 1, 2008 2
10(c) *	2005 Stock Incentive Plan and related agreements 3
10(d) *	2015 Stock Incentive Plan and related agreements 4
10(e) *	Employment Agreement dated January 1, 2016 between the Company and Michael J. Blodnick 5
10(f) *	Employment Agreement dated January 1, 2016 between the Company and Ron J. Copher 5
10(g) *	Employment Agreement dated January 1, 2016 between the Company and Don Chery 5
10(h) *	Employment Agreement dated June 18, 2015 between the Company and Randall Chesler 6
10(i) *	Nonemployee Service Provider Deferred Compensation Plan 7
14	Code of Ethics
21	Subsidiaries of the Company (See item 1, “Subsidiaries”)
23	Consent of BKD, LLP
31.1	Certification of Chief Executive Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
31.2	Certification of Chief Financial Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
32	Certification of Chief Executive Officer and Chief Financial Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes – Oxley Act of 2002
101	The following financial information from Glacier Bancorp, Inc’s Annual Report on Form 10-K for the year ended December 31, 2015 is formatted in XBRL: 1) the Consolidated Statements of Financial Condition; 2) the Consolidated Statements of Operations; 3) the Consolidated Statements of Stockholders’ Equity and Comprehensive Income; 4) the Consolidated Statements of Cash Flows; and 5) the Notes to Consolidated Financial Statements.

__________

¹  Incorporated by reference to Exhibits 3.i. and 3.ii included in the Company’s Quarterly Report on form 10-Q for the quarter ended June 30, 2008.

²  Incorporated by reference to Exhibits 10(c) and 10(d) included in the Company’s Form 10-K for the year ended December 31, 2008.

³  Incorporated by reference to Exhibits 99.1 through 99.3 of the Company’s S-8 Registration Statement (No. 333-125024).

⁴  Incorporated by reference to Exhibits 99.1 through 99.3 of the Company’s S-8 Registration Statement (No. 333-204023).

⁵  Incorporated by reference to Exhibits 10.1 through 10.3 included in the Company’s Form 8-K filed by the Company on January 6, 2016.

⁶  Incorporated by reference to Exhibit 10.1 included in the Company’s Form 8-K filed by the Company on June 22, 2015.

⁷    Incorporated by reference to Exhibit 10.1 included in the Company’s Form 8-K filed by the Company on October 31, 2012.

^*  Compensatory Plan or Arrangement

All other financial statement schedules required by Regulation S-X are omitted because they are not applicable, not material or because the information is included in the consolidated financial statements or related notes.

115

SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized on February 25, 2016.

GLACIER BANCORP, INC.

By: /s/ Michael J. Blodnick

Michael J. Blodnick

President and CEO

Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below on February 25, 2016, by the following persons on behalf of the registrant and in the capacities indicated.

/s/ Michael J. Blodnick	President, CEO, and Director
Michael J. Blodnick	(Principal Executive Officer)
/s/ Ron J. Copher	Executive Vice President and CFO
Ron J. Copher	(Principal Financial Accounting Officer)
Board of Directors
/s/ Dallas I. Herron	Chairman
Dallas I. Herron
/s/ Sherry L. Cladouhos	Director
Sherry L. Cladouhos
/s/ James M. English	Director
James M. English
/s/ Annie M. Goodwin	Director
Annie M. Goodwin
/s/ Craig A. Langel	Director
Craig A. Langel
/s/ Douglas J. McBride	Director
Douglas J. McBride
/s/ John W. Murdoch	Director
John W. Murdoch
/s/ Mark J. Semmens	Director
Mark J. Semmens

116

EX-14

Exhibit 14

CODE OF ETHICS FOR SENIOR FINANCIAL OFFICERS OF GLACIER

BANCORP, INC.

Glacier Bancorp, Inc. (the “Company”) has an existing Code of Ethics and Conduct governing professional and ethical conduct of executive officers, including senior financial officers, employees and directors, of the Company and its bank Divisions.

Section 406 of the Sarbanes-Oxley Act of 2002 requires the adoption of a code of ethics for senior financial officers (including the principal executive officer) of public companies. The Company desires to supplement the existing Code of Ethics and Conduct by adopting this Code of Ethics that is specifically applicable to the Company’s Senior Financial Officers (as defined below).

This Code of Ethics (“Code”) is intended to serve as a source of guiding principles. Senior Financial Officers are encouraged to raise questions about particular circumstances that may involve one or more provisions of this Code to the attention of the Board of Directors, the Audit Committee, or other properly authorized committee (or in the absence thereof, to the independent directors on the Board of Directors), who may consult with legal counsel.

A.Ethical Conduct, Compliance and Reporting

It is the policy of the Company that the persons set forth on Exhibit A hereto (“Senior Financial Officers”) of the Company adhere to and advocate the following principles governing their professional and ethical conduct in the fulfillment of their responsibilities:

1. Act with honesty and integrity, avoiding actual or apparent conflicts between his or her personal, private interests and the interests of the Company, including receiving improper personal benefits as a result of his or her position.

2. Perform responsibilities with a view to causing both periodic reports filed or submitted by the Company with the Securities and Exchange Commission, other federal and state regulatory agencies, and other public communications made by the Company, to contain information that is full, fair, accurate, timely and understandable.

3. Comply with federal, state and local laws applicable to the Company, and the rules and regulations of private and public regulatory agencies having jurisdiction over the Company.

4. Act in good faith, responsibly, with due care and diligence, without misrepresenting or omitting material facts or allowing independent judgment to be compromised.

5. Respect the confidentiality of information acquired in the course of the performance of his or her responsibilities except when authorized or otherwise legally obligated to disclose. Do not use confidential information acquired in the course of the performance of his or her responsibilities for personal advantage.

6.    Proactively promote and reinforce ethical behavior among subordinates and peers.

Exhibit 14

7. Use corporate assets and resources employed or entrusted in a responsible manner.

8. Do not use corporate information, corporate assets, corporate opportunities or one's position with the Company for personal gain. Do not compete directly or indirectly with the Company.

9. Promptly report to the Board of Directors, the Audit Committee, or other properly authorized committee (or in the absence thereof, to the independent directors on the Board of Directors) (a) material transactions or relationships that reasonably could be expected to give rise to a conflict of interest and (b) actual and apparent violations of this Code.

B.Monitoring and Enforcement

It is also the policy of the Company that:

10. The Audit Committee, or other properly authorized committee (or in the absence thereof, the independent directors on the Board of Directors) shall have the power to monitor, make determinations, and recommend to the Board of Directors action with respect to violations of this Code. The Board of Directors shall determine, or designate an appropriate person to determine, appropriate actions to be taken in the event of violations of this Code, except for paragraph A.2, with respect to which the Audit Committee shall have such power.

11. Violations of this Code may result in disciplinary action, up to and including termination of employment.

12. This Code shall be supplemental to other codes of conduct and ethics/ confidentiality policies that are generally applicable to all employees, officers and/or directors of the Company.

Exhibit A

Senior Financial Officers

Persons holding the following offices shall be considered “Senior Financial Officers” under the Code as of December 30, 2015:

• President/Chief Executive Officer

• Executive Vice President/Chief Administrative Officer

• Executive Vice President/Chief Financial Officer

• Senior Vice President/Principal Accounting Officer

• Senior Vice President/Controller

EX-23

Exhibit 23

Consent of Independent Registered Public Accounting Firm

The Board of Directors and Stockholders

Glacier Bancorp, Inc.

Kalispell, Montana

We consent to the incorporation by reference in the registration statements on Forms S-8 (Files No. 333-204023, No. 333-105995, No. 333-125024 and No. 333-184874) of our report dated February 25, 2016, on our audits of the consolidated statements of financial condition as of December 31, 2015 and 2014, and the related consolidated statements of operations, comprehensive income, changes in stockholders’ equity and cash flows for the three years then ended appearing in this Annual Report on Form 10-K of Glacier Bancorp, Inc. We also consent to the incorporation by reference of our report dated February 25, 2016, on the effectiveness of internal control over financial reporting of Glacier Bancorp, Inc. as of December 31, 2015.

/s/ BKD, LLP

Denver, Colorado

February 25, 2016

EX-31.1

Exhibit 31.1

CERTIFICATIONS

I, Michael J. Blodnick, certify that:

1. I have reviewed this Annual Report on Form 10-K of Glacier Bancorp, Inc.

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

February 25, 2016	/s/ Michael J. Blodnick
	Michael J. Blodnick
	President/CEO

EX-31.2

Exhibit 31.2

CERTIFICATIONS

I, Ron J. Copher, certify that:

1. I have reviewed this Annual Report on Form 10-K of Glacier Bancorp, Inc.

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

February 25, 2016	/s/ Ron J. Copher
	Ron J. Copher
	Executive Vice President/CFO

EX-32

Exhibit 32

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Annual Report of Glacier Bancorp, Inc. (the “Company”) on Form 10-K for the period ended December 31, 2015, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), we, Michael J. Blodnick, President and Chief Executive Officer, and Ron J. Copher, Executive Vice President and Chief Financial Officer, of the Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

(1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934 (15 U.S.C. 78m or 78o(d)); and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

A signed original of this written statement required by Section 906, or other document authenticating, acknowledging, or otherwise adopting the signature that appears in typed form within the electronic version of this written statement required by Section 906, has been provided to the Company and will be retained by the Company and furnished to the Securities and Exchange Commission or its staff upon request.

February 25, 2016	/s/ Michael J. Blodnick
	Michael J. Blodnick
	President/CEO
February 25, 2016	/s/ Ron J. Copher
	Ron J. Copher
	Executive Vice President/CFO

XML

Document and Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2015	Feb. 03, 2016	Jun. 30, 2015
Document and Entity Information [Abstract]
Entity Registrant Name	GLACIER BANCORP INC
Entity Central Index Key	0000868671
Document Type	10-K
Document Period End Date	Dec. 31, 2015
Amendment Flag	false
Document Fiscal Year Focus	2015
Document Fiscal Period Focus	FY
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Large Accelerated Filer
Entity Public Float			$ 2,194,320,679
Entity Common Stock, Shares Outstanding		76,086,288

XML

Consolidated Statements of Financial Condition - USD ($) $ in Thousands		Dec. 31, 2015	Dec. 31, 2014
Assets
Cash on hand and in banks		$ 117,137	$ 122,834
Federal funds sold		6,080	1,025
Interest bearing cash deposits		70,036	318,550
Cash and cash equivalents		193,253	442,409
Investment securities, available-for-sale		2,610,760	2,387,428
Investment securities, held-to-maturity		702,072	520,997
Total investment securities		3,312,832	2,908,425
Loans held for sale		56,514	46,726
Loans receivable	[1]	5,078,681	4,488,095
Allowance for loan and lease losses		(129,697)	(129,753)
Loans receivable, net		4,948,984	4,358,342
Premises and equipment, net		194,030	179,175
Other real estate owned		26,815	27,804
Accrued interest receivable		44,524	40,587
Deferred tax asset		58,475	41,737
Core deposit intangible, net		14,555	10,900
Goodwill		140,638	129,706
Non-marketable equity securities		27,495	52,868
Other assets		71,117	67,828
Total assets		9,089,232	8,306,507
Liabilities
Non-interest bearing deposits		1,918,310	1,632,403
Interest bearing deposits		5,026,698	4,712,809
Securities sold under agreements to repurchase		423,414	397,107
Federal Home Loan Bank advances		394,131	296,944
Other borrowed funds		6,602	7,311
Subordinated debentures		125,848	125,705
Accrued interest payable		3,517	4,155
Other liabilities		114,062	102,026
Total liabilities		8,012,582	7,278,460
Stockholders' Equity
Preferred shares, $0.01 par value per share, 1,000,000 shares authorized, none issued or outstanding		0	0
Common stock, $0.01 par value per share, 117,187,500 shares authorized		761	750
Paid-in capital		736,368	708,356
Retained earnings - substantially restricted		337,532	301,197
Accumulated other comprehensive income		1,989	17,744
Total stockholders’ equity		1,076,650	1,028,047
Total liabilities and stockholders’ equity		$ 9,089,232	$ 8,306,507
Number of common stock shares issued and outstanding		76,086,288	75,026,092

[1] Includes net deferred fees, costs, premiums and discounts of $15,529,000 and $13,710,000 at December 31, 2015 and 2014, respectively.

XML

Consolidated Statements of Financial Condition (Parenthetical) - $ / shares	Dec. 31, 2015	Dec. 31, 2014
Statement of Financial Position [Abstract]
Preferred shares, par value	$ 0.01	$ 0.01
Preferred shares, authorized	1,000,000	1,000,000
Preferred shares, issued	0	0
Preferred shares, outstanding	0	0
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	117,187,500	117,187,500

XML

Consolidated Statements of Operations - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Interest Income
Investment securities	$ 91,086	$ 93,052	$ 74,512
Residential real estate loans	32,153	30,721	29,525
Commercial loans	164,966	145,631	127,450
Consumer and other loans	31,476	30,515	32,089
Total interest income	319,681	299,919	263,576
Interest Expense
Deposits	16,138	13,195	13,870
Securities sold under agreements to repurchase	1,021	865	867
Federal Home Loan Bank advances	8,841	9,570	10,610
Federal funds purchased and other borrowed funds	81	199	206
Subordinated debentures	3,194	3,137	3,205
Total interest expense	29,275	26,966	28,758
Net Interest Income	290,406	272,953	234,818
Provision for loan losses	2,284	1,912	6,887
Net interest income after provision for loan losses	288,122	271,041	227,931
Non-Interest Income
Service charges and other fees	57,321	54,089	49,478
Miscellaneous loan fees and charges	4,276	4,696	4,982
Gain on sale of loans	26,389	19,797	28,517
Gain (loss) on sale of investments	19	(188)	(299)
Other income	10,756	11,908	10,369
Total non-interest income	98,761	90,302	93,047
Non-Interest Expense
Compensation and employee benefits	134,409	118,571	104,221
Occupancy and equipment	31,149	27,498	24,875
Advertising and promotions	8,661	7,912	6,913
Data processing	5,833	6,607	4,493
Other real estate owned	3,693	2,568	7,196
Regulatory assessments and insurance	5,283	5,064	6,362
Core deposit intangible amortization	2,964	2,811	2,401
Other expense	44,765	41,648	38,856
Total non-interest expense	236,757	212,679	195,317
Income Before Income Taxes	150,126	148,664	125,661
Federal and state income tax expense	33,999	35,909	30,017
Net Income	$ 116,127	$ 112,755	$ 95,644
Basic earnings per share	$ 1.54	$ 1.51	$ 1.31
Diluted earnings per share	1.54	1.51	1.31
Dividends declared per share	$ 1.05	$ 0.98	$ 0.60
Average outstanding shares - basic	75,542,455	74,641,957	73,191,713
Average outstanding shares - diluted	75,595,581	74,687,315	73,260,278

XML

Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Statement of Comprehensive Income [Abstract]
Net Income	$ 116,127	$ 112,755	$ 95,644
Other Comprehensive (Loss) Income, Net of Tax
Unrealized (losses) gains on available-for-sale securities	(22,845)	31,569	(81,739)
Reclassification adjustment for (gains) losses included in net income	(69)	204	299
Net unrealized (losses) gains on available-for-sale securities	(22,914)	31,773	(81,440)
Tax effect	8,904	(12,313)	31,680
Net of tax amount	(14,010)	19,460	(49,760)
Unrealized (losses) gains on derivatives used for cash flow hedges	(7,857)	(19,557)	18,728
Reclassification adjustment for losses included in net income	5,025	993	0
Net unrealized (losses) gains on derivatives used for cash flow hedges	(2,832)	(18,564)	18,728
Tax effect	1,087	7,203	(7,285)
Net of tax amount	(1,745)	(11,361)	11,443
Total other comprehensive (loss) income, net of tax	(15,755)	8,099	(38,317)
Total Comprehensive Income	$ 100,372	$ 120,854	$ 57,327

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Consolidated Statements of Changes in Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock	Paid-in Capital	Retained Earnings Substantially Restricted	Accumulated Other Comprehensive Income
Balance, shares at Dec. 31, 2012		71,937,222
Balance at Dec. 31, 2012	$ 900,949	$ 719	$ 641,737	$ 210,531	$ 47,962
Net income	95,644			95,644
Comprehensive income (loss), accumulated other comprehensive income	(38,317)				(38,317)
Comprehensive income, total	57,327
Cash dividends declared	(44,232)			(44,232)
Stock issuances under stock incentive plans, shares		292,942
Stock issuances under stock incentive plans, amount	4,507	$ 3	4,504
Stock issued in connection with acquisitions, shares		2,143,132
Stock issued in connection with acquisitions, amount	45,033	$ 22	45,011
Stock-based compensation and related taxes	(334)		(334)
Balance, shares at Dec. 31, 2013		74,373,296
Balance at Dec. 31, 2013	963,250	$ 744	690,918	261,943	9,645
Net income	112,755			112,755
Comprehensive income (loss), accumulated other comprehensive income	8,099				8,099
Comprehensive income, total	120,854
Cash dividends declared	(73,501)			(73,501)
Stock issuances under stock incentive plans, shares		97,064
Stock issuances under stock incentive plans, amount	784	$ 1	783
Stock issued in connection with acquisitions, shares		555,732
Stock issued in connection with acquisitions, amount	15,127	$ 5	15,122
Stock-based compensation and related taxes	$ 1,533		1,533
Balance, shares at Dec. 31, 2014	75,026,092	75,026,092
Balance at Dec. 31, 2014	$ 1,028,047	$ 750	708,356	301,197	17,744
Net income	116,127			116,127
Comprehensive income (loss), accumulated other comprehensive income	(15,755)				(15,755)
Comprehensive income, total	100,372
Cash dividends declared	(79,792)			(79,792)
Stock issuances under stock incentive plans, shares		62,346
Stock issuances under stock incentive plans, amount	17	$ 1	16
Stock issued in connection with acquisitions, shares		997,850
Stock issued in connection with acquisitions, amount	25,939	$ 10	25,929
Stock-based compensation and related taxes	$ 2,067		2,067
Balance, shares at Dec. 31, 2015	76,086,288	76,086,288
Balance at Dec. 31, 2015	$ 1,076,650	$ 761	$ 736,368	$ 337,532	$ 1,989

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Consolidated Statements of Stockholders' Equity (Parenthetical) - $ / shares	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Cash dividends declared per share	$ 1.05	$ 0.98	$ 0.60
Retained Earnings Substantially Restricted
Cash dividends declared per share	$ 1.05	$ 0.98	$ 0.60

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Consolidated Statements of Cash Flows - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Operating Activities
Net income		$ 116,127	$ 112,755	$ 95,644
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for loan losses		2,284	1,912	6,887
Net amortization of investment securities premiums and discounts		26,709	27,491	64,066
Loans held for sale originated or acquired		(888,676)	(669,144)	(918,451)
Proceeds from sales of loans held for sale		925,353	705,178	1,084,799
Gain on sale of loans		(26,389)	(19,797)	(28,517)
(Gain) loss on sale of investments		(19)	188	299
Bargain purchase gain		0	(680)	0
Stock-based compensation expense, net of tax benefits		1,087	859	1,011
Excess tax (benefits) deficiencies from stock-based compensation		(102)	(138)	223
Depreciation of premises and equipment		14,365	12,108	10,485
Loss (gain) on sale of other real estate owned and write-downs, net		938	(937)	1,450
Core deposit intangible amortization		2,964	2,811	2,401
Deferred tax (benefit) expense	[1]	(4,080)	5,931	4,633
Net (increase) decrease in accrued interest receivable		(2,377)	2,648	(265)
Net (increase) decrease in other assets		(793)	(5,702)	19,881
Net (decrease) increase in accrued interest payable		(828)	567	(1,354)
Net increase (decrease) in other liabilities		4,903	6,684	(9,097)
Net cash provided by operating activities		171,466	182,734	334,095
Investing Activities
Sales of available-for-sale securities		136,777	169,372	181,971
Maturities, prepayments and calls of available-for-sale securities		663,828	628,238	1,682,363
Purchases of available-for-sale securities		(961,224)	(281,332)	(1,426,262)
Maturities, prepayments and calls of held-to-maturity securities		20,997	8,930	0
Purchases of held-to-maturity securities		(203,554)	(49,691)	0
Principal collected on loans		1,737,508	1,418,517	1,224,222
Loans originated or acquired		(2,112,154)	(1,735,155)	(1,559,353)
Net addition of premises and equipment and other real estate owned		(18,224)	(14,389)	(8,977)
Proceeds from sale of other real estate owned		10,278	15,714	28,535
Net proceeds from sale of non-marketable equity securities		27,770	801	583
Net cash received (paid) in acquisitions		21,427	(2,112)	26,155
Net cash (used in) provided by investing activities		(676,571)	158,893	149,237
Financing Activities
Net increase (decrease) in deposits		215,650	455,604	(334,672)
Net increase in securities sold under agreements to repurchase		24,951	83,713	23,886
Net increase (decrease) in short-term Federal Home Loan Bank advances		140,000	(421,000)	(204,467)
Proceeds from long-term Federal Home Loan Bank advances		50,000	192,500	1,147,451
Repayments of long-term Federal Home Loan Bank advances		(94,749)	(314,738)	(1,105,282)
Net decrease in other borrowed funds		(566)	(933)	(1,502)
Cash dividends paid		(79,456)	(50,944)	(44,232)
Excess tax benefits (deficiencies) from stock-based compensation		102	138	(223)
Stock-based compensation activity		17	785	4,326
Net cash provided by (used in) financing activities		255,949	(54,875)	(514,715)
Net (decrease) increase in cash and cash equivalents		(249,156)	286,752	(31,383)
Cash and cash equivalents at beginning of period		442,409	155,657	187,040
Cash and cash equivalents at end of period		193,253	442,409	155,657
Supplemental Disclosure of Cash Flow Information
Cash paid during the period for interest		30,103	26,398	30,111
Cash paid during the period for income taxes		39,622	33,343	23,576
Supplemental Disclosure of Non-Cash Investing Activities
Transfer of investment securities from available-for-sale to held-to-maturity		0	484,583	0
Sale and refinancing of other real estate owned		446	1,361	4,819
Transfer of loans to other real estate owned		7,989	11,493	15,266
Fair value of common stock shares issued		25,939	15,127	45,033
Cash consideration for outstanding shares		28,364	16,690	24,858
Fair value of assets acquired		434,963	349,167	630,569
Liabilities assumed		$ 391,592	$ 316,670	$ 560,678

[1] Includes tax benefit of operating loss carryforwards of $391,000, $0 and $0 for the years ended December 31, 2015, 2014, and 2013, respectively.

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Nature of Operations and Summary of Significant Accounting Policies

12 Months Ended

Dec. 31, 2015

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Nature of Operations and Summary of Significant Accounting Policies

Nature of Operations and Summary of Significant Accounting Policies

General

Glacier Bancorp, Inc. (“Company”) is a Montana corporation headquartered in Kalispell, Montana. The Company provides a full range of banking services to individuals and businesses in Montana, Idaho, Wyoming, Colorado, Utah and Washington through its wholly-owned bank subsidiary, Glacier Bank (“Bank”). The Company offers a wide range of banking products and services, including transaction and savings deposits, real estate, commercial, agriculture and consumer loans and mortgage origination services. The Company serves individuals, small to medium-sized businesses, community organizations and public entities.

The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America (“GAAP”) requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of income and expenses during the reporting period. Actual results could differ from those estimates.

Material estimates that are particularly susceptible to significant change include: 1) the determination of the allowance for loan and lease losses (“ALLL” or “allowance”); 2) the valuation of investment securities; 3) the valuation of real estate acquired in connection with foreclosures or in satisfaction of loans; and 4) the evaluation of goodwill impairment. For the determination of the ALLL and real estate valuation estimates, management obtains independent appraisals (new or updated) for significant items. Estimates relating to investment valuations are obtained from independent third parties. Estimates relating to the evaluation of goodwill for impairment are determined based on internal calculations using significant independent party inputs.

Principles of Consolidation

The consolidated financial statements of the Company include the parent holding company, the Bank and all variable interest entities (“VIE”) for which the Company has both the power to direct the VIE’s significant activities and the obligation to absorb a majority of the expected losses and/or receive a majority of the expected residual returns. The Bank consists of thirteen bank divisions, a treasury division and an information technology division. The treasury division includes the Bank’s investment portfolio and wholesale borrowings and the information technology division includes the Bank’s internal data processing and information technology expenses. The Bank divisions operate under separate names, management teams and directors. The Company considers the Bank to be its sole operating segment as the Bank 1) engages in similar bank business activity from which it earns revenues and incurs expenses; 2) the operating results of the Bank are regularly reviewed by the Chief Executive Officer (i.e., the chief operating decision maker) who makes decisions about resources to be allocated to the Bank; and 3) financial information is available for the Bank. All significant inter-company transactions have been eliminated in consolidation.

In October 2015, the Company completed its acquisition of Cañon Bank Corporation and its wholly-owned subsidiary, Cañon National Bank, a community bank based in Cañon City, Colorado (collectively, “Cañon”). In February 2015, the Company completed its acquisition of Montana Community Banks, Inc. and its wholly-owned subsidiary, Community Bank, Inc., a community bank based in Ronan, Montana (collectively, “CB”). In August 2014, the Company completed its acquisition of FNBR Holding Corporation and its wholly-owned subsidiary, First National Bank of the Rockies, a community bank based in Grand Junction, Colorado (collectively, “FNBR”). In July 2013, the Company completed its acquisition of North Cascades Bancshares, Inc. and its wholly-owned subsidiary, North Cascades National Bank, a community bank based in Chelan, Washington. In May 2013, the Company acquired Wheatland Bankshares, Inc. and its wholly-owned subsidiary, First State Bank, a community bank based in Wheatland, Wyoming. The transactions were accounted for using the acquisition method, and their results of operations have been included in the Company’s consolidated financial statements as of the acquisition dates.

Cash and Cash Equivalents

Cash and cash equivalents include cash on hand, cash held as demand deposits at various banks and the Federal Reserve Bank (“FRB”), interest bearing deposits, federal funds sold, and liquid investments with original maturities of three months or less. The Bank is required to maintain an average reserve balance with either the FRB or in the form of cash on hand. The required reserve balance at December 31, 2015 was $34,309,000.

Note 1. Nature of Operations and Summary of Significant Accounting Policies (continued)

Investment Securities

Debt securities for which the Company has the positive intent and ability to hold to maturity are classified as held-to-maturity and are carried at amortized cost. Debt and equity securities held primarily for the purpose of selling in the near term are classified as trading securities and are reported at fair market value, with unrealized gains and losses included in income. Debt and equity securities not classified as held-to-maturity or trading are classified as available-for-sale and are reported at fair value with unrealized gains and losses, net of income taxes, as a separate component of other comprehensive income. Premiums and discounts on investment securities are amortized or accreted into income using a method that approximates the interest method. The objective of the interest method is to calculate periodic interest income at a constant effective yield. The Company does not have any investment securities classified as trading securities.

The Company reviews and analyzes the various risks that may be present within the investment portfolio on an ongoing basis, including market risk and credit risk. Market risk is the risk to an entity’s financial condition resulting from adverse changes in the value of its holdings arising from movements in interest rates, foreign exchange rates, equity prices or commodity prices. The Company assesses the market risk of individual securities as well as the investment portfolio as a whole. Credit risk, broadly defined, is the risk that an issuer or counterparty will fail to perform on an obligation. A security is investment grade if the issuer has an adequate capacity to meet its commitment over the expected life of the investment, i.e., the risk of default is low and full and timely repayment of interest and principal is expected. To determine investment grade status for securities, the Company conducts due diligence of the creditworthiness of the issuer or counterparty prior to acquisition and ongoing thereafter consistent with the risk characteristics of the security and the overall risk of the investment portfolio. Credit quality due diligence takes into account the extent to which a security is guaranteed by the U.S. government and other agencies of the U.S. government. The depth of the due diligence is based on the complexity of the structure, the size of the security, and takes into account material positions and specific groups of securities or stratifications for analysis and review of similar risk positions. The due diligence includes consideration of payment performance, collateral adequacy, internal analyses, third party research and analytics, external credit ratings and default statistics.

For additional information relating to investment securities, see Note 2.

Temporary versus Other-Than-Temporary Impairment

The Company assesses individual securities in its investment portfolio for impairment at least on a quarterly basis, and more frequently when economic or market conditions warrant. An investment is impaired if the fair value of the security is less than its carrying value at the financial statement date. If impairment is determined to be other-than-temporary, an impairment loss is recognized by reducing the amortized cost for the credit loss portion of the impairment with a corresponding charge to earnings for a like amount.

In evaluating impaired securities for other-than-temporary impairment losses, management considers 1) the severity and duration of the impairment; 2) the credit ratings of the security; and 3) the overall deal structure, including the Company’s position within the structure, the overall and near term financial performance of the issuer and underlying collateral, delinquencies, defaults, loss severities, recoveries, prepayments, cumulative loss projections, discounted cash flows and fair value estimates.

In evaluating debt securities for other-than-temporary impairment losses, management assesses whether the Company intends to sell the security or if it is more-likely-than-not that the Company will be required to sell the debt security. In so doing, management considers contractual constraints, liquidity, capital, asset/liability management and securities portfolio objectives. If impairment is determined to be other-than-temporary and the Company does not intend to sell a debt security, and it is more-likely-than-not the Company will not be required to sell the security before recovery of its cost basis, it recognizes the credit component of an other-than-temporary impairment of a debt security in earnings and the remaining portion (noncredit portion) in other comprehensive income, net of tax. For held-to-maturity debt securities, the amount of an other-than-temporary impairment recorded in other comprehensive income for the noncredit portion of a previous other-than-temporary impairment is amortized prospectively, as an increase to the carrying amount of the security, over the remaining life of the security on the basis of the timing of future estimated cash flows of the security.

Note 1. Nature of Operations and Summary of Significant Accounting Policies (continued)

If impairment is determined to be other-than-temporary and the Company intends to sell a debt security or it is more-likely-than-not the Company will be required to sell the security before recovery of its cost basis, it recognizes the entire amount of the other-than-temporary impairment in earnings.

For debt securities with other-than-temporary impairment, the previous amortized cost basis less the other-than-temporary impairment recognized in earnings shall be the new amortized cost basis of the security. In subsequent periods, the Company accretes into interest income the difference between the new amortized cost basis and cash flows expected to be collected prospectively over the life of the debt security.

Loans Held for Sale

Loans held for sale generally consist of long-term, fixed rate, conforming, single-family residential real estate loans and are carried at the lower of cost or estimated fair value in the aggregate. Net unrealized losses, if any, are recognized by charges to non-interest income. A sale is recognized when the Company surrenders control of the loan and consideration, is received in exchange. A gain is recognized in non-interest income to the extent the sales price exceeds the carrying value of the sold loan.

Loans Receivable

Loans that are intended to be held-to-maturity are reported at the unpaid principal balance less net charge-offs and adjusted for deferred fees and costs on originated loans and unamortized premiums or discounts on acquired loans. Fees and costs on originated loans and premiums or discounts on acquired loans are deferred and subsequently amortized or accreted as a yield adjustment over the expected life of the loan utilizing the interest method. The objective of the interest method is to calculate periodic interest income at a constant effective yield. Anticipated prepayments are not included when applying the interest method. When a loan is paid off prior to maturity, the remaining fees and costs on originated loans and premiums or discounts on acquired loans are immediately recognized into interest income.

The Company’s loan segments, which are based on the purpose of the loan, include residential real estate, commercial, and consumer loans. The Company’s loan classes, a further disaggregation of segments, include residential real estate loans (residential real estate segment), commercial real estate and other commercial loans (commercial segment), and home equity and other consumer loans (consumer segment).

Loans that are thirty days or more past due based on payments received and applied to the loan are considered delinquent. Loans are designated non-accrual and the accrual of interest is discontinued when the collection of the contractual principal or interest is unlikely. A loan is typically placed on non-accrual when principal or interest is due and has remained unpaid for ninety days or more. When a loan is placed on non-accrual status, interest previously accrued but not collected is reversed against current period interest income. Subsequent payments on non-accrual loans are applied to the outstanding principal balance if doubt remains as to the ultimate collectability of the loan. Interest accruals are not resumed on partially charged-off impaired loans. For other loans on nonaccrual, interest accruals are resumed on such loans only when they are brought fully current with respect to interest and principal and when, in the judgment of management, the loans are estimated to be fully collectible as to both principal and interest.

The Company considers impaired loans to be the primary credit quality indicator for monitoring the credit quality of the loan portfolio. Loans are designated impaired when, based upon current information and events, it is probable that the Company will be unable to collect the scheduled payments of principal or interest when due according to the contractual terms of the loan agreement and, therefore, the Company has serious doubts as to the ability of such borrowers to fulfill the contractual obligation. Impaired loans include non-performing loans (i.e., non-accrual loans and accruing loans ninety days or more past due) and accruing loans under ninety days past due where it is probable payments will not be received according to the loan agreement (e.g., troubled debt restructuring). Interest income on accruing impaired loans is recognized using the interest method. The Company measures impairment on a loan-by-loan basis in the same manner for each class within the loan portfolio. An insignificant delay or shortfall in the amounts of payments would not cause a loan or lease to be considered impaired. The Company determines the significance of payment delays and shortfalls on a case-by-case basis, taking into consideration all of the facts and circumstances surrounding the loan and the borrower, including the length and reasons for the delay, the borrower’s prior payment record, and the amount of the shortfall in relation to the principal and interest due.

Note 1. Nature of Operations and Summary of Significant Accounting Policies (continued)

A restructured loan is considered a troubled debt restructuring (“TDR”) if the creditor, for economic or legal reasons related to the debtor’s financial difficulties, grants a concession to the debtor that it would not otherwise consider. The Company periodically enters into restructure agreements with borrowers whereby the loans were previously identified as TDRs. When such circumstances occur, the Company carefully evaluates the facts of the subsequent restructure to determine the appropriate accounting and under certain circumstances it may be acceptable not to account for the subsequently restructured loan as a TDR. When assessing whether a concession has been granted by the Company, any prior forgiveness on a cumulative basis is considered a continuing concession. A TDR loan is considered an impaired loan and a specific valuation allowance is established when the fair value of the collateral-dependent loan or present value of the loan’s expected future cash flows (discounted at the loan’s effective interest rate based on the original contractual rate) is lower than the carrying value of the impaired loan. The Company has made the following types of loan modifications, some of which were considered a TDR:

• reduction of the stated interest rate for the remaining term of the debt;

• extension of the maturity date(s) at a stated rate of interest lower than the current market rate for newly originated debt having similar risk characteristics; and

• reduction of the face amount of the debt as stated in the debt agreements.

The Company recognizes that while borrowers may experience deterioration in their financial condition, many continue to be creditworthy customers who have the willingness and capacity for debt repayment. In determining whether non-restructured or unimpaired loans issued to a single or related party group of borrowers should continue to accrue interest when the borrower has other loans that are impaired or are TDRs, the Company on a quarterly or more frequent basis performs an updated and comprehensive assessment of the willingness and capacity of the borrowers to timely and ultimately repay their total debt obligations, including contingent obligations. Such analysis takes into account current financial information about the borrowers and financially responsible guarantors, if any, including for example:

• analysis of global, i.e., aggregate debt service for total debt obligations;

• assessment of the value and security protection of collateral pledged using current market conditions and alternative market assumptions across a variety of potential future situations; and

• loan structures and related covenants.

For additional information relating to loans, see Note 3.

Allowance for Loan and Lease Losses

Based upon management’s analysis of the Company’s loan portfolio, the balance of the ALLL is an estimate of probable credit losses known and inherent within the Bank’s loan portfolio as of the date of the consolidated financial statements. The ALLL is analyzed at the loan class level and is maintained within a range of estimated losses. Determining the adequacy of the ALLL involves a high degree of judgment and is inevitably imprecise as the risk of loss is difficult to quantify. The determination of the ALLL and the related provision for loan losses is a critical accounting estimate that involves management’s judgments about all known relevant internal and external environmental factors that affect loan losses. The balance of the ALLL is highly dependent upon management’s evaluations of borrowers’ current and prospective performance, appraisals and other variables affecting the quality of the loan portfolio. Individually significant loans and major lending areas are reviewed periodically to determine potential problems at an early date. Changes in management’s estimates and assumptions are reasonably possible and may have a material impact upon the Company’s consolidated financial statements, results of operations or capital.

Risk characteristics considered in the ALLL analysis applicable to each loan class within the Company's loan portfolio are as follows:

Residential Real Estate.  Residential real estate loans are secured by owner-occupied 1-4 family residences.  Repayment of these loans is primarily dependent on the personal income and credit rating of the borrowers.  Credit risk in these loans is impacted by economic conditions within the Company’s market areas that affect the value of the property securing the loans and affect the borrowers' personal incomes.  Mitigating risk factors for this loan class include a large number of borrowers, geographic dispersion of market areas and the loans are originated for relatively smaller amounts.

Commercial Real Estate.  Commercial real estate loans typically involve larger principal amounts, and repayment of these loans is generally dependent on the successful operation of the property securing the loan and/or the business conducted on the property securing the loan.  Credit risk in these loans is impacted by the creditworthiness of a borrower, valuation of the property securing the loan and conditions within the local economies in the Company’s diverse, geographic market areas.

Note 1. Nature of Operations and Summary of Significant Accounting Policies (continued)

Commercial.  Commercial loans consist of loans to commercial customers for use in financing working capital needs, equipment purchases and business expansions.  The loans in this category are repaid primarily from the cash flow of a borrower’s principal business operation.  Credit risk in these loans is driven by creditworthiness of a borrower and the economic conditions that impact the cash flow stability from business operations across the Company’s diverse, geographic market areas.

Home Equity.  Home equity loans consist of junior lien mortgages and first and junior lien lines of credit (revolving open-end and amortizing closed-end) secured by owner-occupied 1-4 family residences.  Repayment of these loans is primarily dependent on the personal income and credit rating of the borrowers.  Credit risk in these loans is impacted by economic conditions within the Company’s market areas that affect the value of the residential property securing the loans and affect the borrowers' personal incomes.  Mitigating risk factors for this loan class are a large number of borrowers, geographic dispersion of market areas and the loans are originated for terms that range from 10 years to 15 years.

Other Consumer.  The other consumer loan portfolio consists of various short-term loans such as automobile loans and loans for other personal purposes.  Repayment of these loans is primarily dependent on the personal income of the borrowers.  Credit risk is driven by consumer economic factors (such as unemployment and general economic conditions in the Company’s diverse, geographic market area) and the creditworthiness of a borrower.

The ALLL consists of a specific valuation allowance component and a general valuation allowance component. The specific component relates to loans that are determined to be impaired and individually evaluated for impairment. The Company measures impairment on a loan-by-loan basis based on the present value of expected future cash flows discounted at the loan’s effective interest rate, except when it is determined that repayment of the loan is expected to be provided solely by the underlying collateral. For impairment based on expected future cash flows, the Company considers all information available as of a measurement date, including past events, current conditions, potential prepayments, and estimated cost to sell when such costs are expected to reduce the cash flows available to repay or otherwise satisfy the loan. For alternative ranges of cash flows, the likelihood of the possible outcomes is considered in determining the best estimate of expected future cash flows. The effective interest rate for a loan restructured in a TDR is based on the original contractual rate. For collateral-dependent loans and real estate loans for which foreclosure or a deed-in-lieu of foreclosure is probable, impairment is measured by the fair value of the collateral, less estimated cost to sell. The fair value of the collateral is determined primarily based upon appraisal or evaluation of the underlying real property value.

The general valuation allowance component relates to probable credit losses inherent in the balance of the loan portfolio based on historical loss experience, adjusted for changes in trends and conditions of qualitative or environmental factors. The historical loss experience is based on the previous twelve quarters loss experience by loan class adjusted for risk characteristics in the existing loan portfolio. The same trends and conditions are evaluated for each class within the loan portfolio; however, the risk characteristics are weighted separately at the individual class level based on the Company’s judgment and experience.

The changes in trends and conditions evaluated for each class within the loan portfolio include the following:

• changes in lending policies and procedures, including changes in underwriting standards and collection, charge-off, and recovery practices not considered elsewhere in estimating credit losses;

• changes in global, national, regional, and local economic and business conditions and developments that affect the collectability of the portfolio, including the condition of various market segments;

• changes in the nature and volume of the portfolio and in the terms of loans;

• changes in experience, ability, and depth of lending management and other relevant staff;

• changes in the volume and severity of past due and nonaccrual loans;

• changes in the quality of the Company’s loan review system;

• changes in the value of underlying collateral for collateral-dependent loans;

• the existence and effect of any concentrations of credit, and changes in the level of such concentrations; and

• the effect of other external factors such as competition and legal and regulatory requirements on the level of estimated credit losses in the Company’s existing portfolio.

The ALLL is increased by provisions for loan losses which are charged to expense. The portions of loan balances determined by management to be uncollectible are charged off as a reduction of the ALLL and recoveries of amounts previously charged off are credited as an increase to the ALLL. The Company’s charge-off policy is consistent with bank regulatory standards. Consumer loans generally are charged off when the loan becomes over 120 days delinquent. Real estate acquired as a result of foreclosure or by deed-in-lieu of foreclosure is classified as real estate owned until such time as it is sold.

Note 1. Nature of Operations and Summary of Significant Accounting Policies (continued)

At acquisition date, the assets and liabilities of acquired banks are recorded at their estimated fair values which results in no ALLL carried over from acquired banks. Subsequent to acquisition, an allowance will be recorded on the acquired loan portfolios for further credit deterioration, if any.

Premises and Equipment

Premises and equipment are accounted for at cost less depreciation. Depreciation is computed on a straight-line method over the estimated useful lives or the term of the related lease. The estimated useful life for office buildings is 15 - 40 years and the estimated useful life for furniture, fixtures, and equipment is 3 - 10 years. Interest is capitalized for any significant building projects. For additional information relating to premises and equipment, see Note 4.

Leases

The Company leases certain land, premises and equipment from third parties under operating and capital leases. The lease payments for operating lease agreements are recognized on a straight-line basis. The present value of the future minimum rental payments for capital leases is recognized as an asset when the lease is formed. Lease improvements incurred at the inception of the lease are recorded as an asset and depreciated over the initial term of the lease and lease improvements incurred subsequently are depreciated over the remaining term of the lease. For additional information relating to leases, see Note 4.

Other Real Estate Owned

Property acquired by foreclosure or deed-in-lieu of foreclosure is initially recorded at fair value, less estimated selling cost, at acquisition date (i.e., cost of the property). The Company is considered to have received physical possession of residential real estate property collateralizing a consumer mortgage loan upon the occurrence of either the Company obtaining legal title to the property or the borrower conveying all interest in the property through a deed-in-lieu or similar agreement. Fair value is determined as the amount that could be reasonably expected in a current sale between a willing buyer and a willing seller in an orderly transaction between market participants at the measurement date. Subsequent to the initial acquisition, if the fair value of the asset, less estimated selling cost, is less than the cost of the property, a loss is recognized in other expense and the asset carrying value is reduced. Gain or loss on disposition of other real estate owned (“OREO”) is recorded in non-interest income or non-interest expense, respectively. In determining the fair value of the properties on the date of transfer and any subsequent estimated losses of net realizable value, the fair value of other real estate acquired by foreclosure or deed-in-lieu of foreclosure is determined primarily based upon appraisal or evaluation of the underlying property value.

Long-lived Assets

Long-lived assets are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. An asset is deemed impaired if the sum of the expected future cash flows is less than the carrying amount of the asset. If impaired, an impairment loss is recognized in other expense to reduce the carrying value of the asset to fair value. At December 31, 2015 and 2014, no long-lived assets were considered impaired.

Business Combinations and Intangible Assets

Acquisition accounting requires the total purchase price to be allocated to the estimated fair values of assets acquired and liabilities assumed, including certain intangible assets. Goodwill is recorded if the purchase price exceeds the net fair value of assets acquired and a bargain purchase gain is recorded in other income if the net fair value of assets acquired exceeds the purchase price.

Adjustment of the allocated purchase price may be related to fair value estimates for which all information has not been obtained of the acquired entity known or discovered during the allocation period, the period of time required to identify and measure the fair values of the assets and liabilities acquired in the business combination. The allocation period is generally limited to one year following consummation of a business combination.

Core deposit intangible represents the intangible value of depositor relationships resulting from deposit liabilities assumed in acquisitions and is amortized using an accelerated method based on an estimated runoff of the related deposits. The core deposit intangible is evaluated for impairment and recoverability whenever events or changes in circumstances indicate that its carrying amount may not be recoverable, with any changes in estimated useful life accounted for prospectively over the revised remaining life. For additional information relating to core deposit intangibles, see Note 5.

The Company tests goodwill for impairment at the reporting unit level annually during the third quarter. The Company has identified that each of the bank divisions are reporting units (i.e., components of the Glacier Bank operating segment) given that each division has a separate management team that regularly reviews its respective division financial information; however, the reporting units are aggregated into a single reporting unit due to the reporting units having similar economic characteristics.

Note 1. Nature of Operations and Summary of Significant Accounting Policies (continued)

The goodwill of a reporting unit is tested for impairment between annual tests if an event occurs or circumstances change that would more-likely-than-not reduce the fair value of a reporting unit below its carrying amount. Examples of events and circumstances that could trigger the need for interim impairment testing include:

• a significant change in legal factors or in the business climate;

• an adverse action or assessment by a regulator;

• unanticipated competition;

• a loss of key personnel;

• a more-likely-than-not expectation that a reporting unit or a significant portion of a reporting unit will be sold or otherwise disposed of; and

• the testing for recoverability of a significant asset group within a reporting unit.

For the goodwill impairment assessment, the Company has the option, prior to the two-step process, to first assess qualitative factors to determine whether the existence of events or circumstances leads to a determination that it is more-likely-than-not that the fair value of a reporting unit is less than its carrying value. The Company opted to bypass the qualitative assessment for its 2015 and 2014 annual goodwill impairment testing and proceed directly to the two-step goodwill impairment test. The goodwill impairment two-step process requires the Company to make assumptions and judgments regarding fair value. In the first step, the Company calculates an implied fair value based on a control premium analysis. If the implied fair value is less than the carrying value, the second step is completed to compute the impairment amount, if any, by determining the “implied fair value” of goodwill. This determination requires the allocation of the estimated fair value of the reporting units to the assets and liabilities of the reporting units. Any remaining unallocated fair value represents the “implied fair value” of goodwill, which is compared to the corresponding carrying value of goodwill to compute impairment, if any.

For additional information relating to goodwill, see Note 5.

Non-Marketable Equity Securities

Non-marketable equity securities primarily consist of Federal Home Loan Bank (“FHLB”) stock. FHLB stock is restricted because such stock may only be sold to FHLB at its par value. Due to restrictive terms, and the lack of a readily determinable market value, FHLB stock is carried at cost. The investments in FHLB stock are required investments related to the Company’s borrowings from FHLB. FHLB obtains its funding primarily through issuance of consolidated obligations of the FHLB system. The U.S. government does not guarantee these obligations, and each of the regional FHLBs is jointly and severally liable for repayment of each other’s debt.

Bank-Owned Life Insurance

The Company maintains bank-owned life insurance policies on certain current and former employees and directors, which are recorded at their cash surrender values as determined by the insurance carriers. At December 31, 2015 and 2014, the carrying value associated with these policies is $49,534,000 and $46,030,000, respectively, and is recorded in other assets in the Company’s statements of financial position. The appreciation in the cash surrender value of the policies is recognized as a component of other non-interest income in the Company’s statements of operations.

Derivatives and Hedging Activities

For asset and liability management purposes, the Company has entered into interest rate swap agreements to hedge against changes in forecasted cash flows due to interest rate exposures. The interest rate swaps are recognized as assets or liabilities on the Company’s statements of financial condition and measured at fair value. Fair value estimates are obtained from third parties and are based on pricing models. The Company does not enter into interest rate swap agreements for trading or speculative purposes.

The Company takes into account the impact of bilateral collateral and master netting agreements that allows the Company to settle all interest rate swap agreements held with a single counterparty on a net basis, and to offset the net interest rate swap derivative position with the related collateral when recognizing interest rate swap derivative assets and liabilities.

Interest rate swaps are contracts in which a series of interest payments are exchanged over a prescribed period. The notional amount upon which the interest payments are based is not exchanged. The swap agreements are derivative instruments and convert a portion of the Company’s forecasted variable rate debt to a fixed rate (i.e., cash flow hedge) over the payment term of the interest rate swap. The effective portion of the gain or loss on the cash flow hedging instruments is initially reported as a component of other comprehensive income and subsequently reclassified into earnings in the same period during which the transaction affects earnings. The ineffective portion of the gain or loss on derivative instruments, if any, is recognized in earnings. For the years ended December 31, 2015, 2014, and 2013, the Company’s cash flow hedges were determined to be fully effective.

Note 1. Nature of Operations and Summary of Significant Accounting Policies (continued)

Interest rate derivative financial instruments receive hedge accounting treatment only if they are designated as a hedge and are expected to be, and are, highly effective in substantially reducing interest rate risk arising from the assets and liabilities identified as exposing the Company to risk. Derivative financial instruments that do not meet specified hedging criteria are recorded at fair value with changes in fair value recorded in income. The Company’s interest rate swaps are considered highly effective and currently meet the hedge accounting criteria.

Cash flows resulting from the interest rate derivative financial instruments that are accounted for as hedges of assets and liabilities are classified in the Company’s cash flow statement in the same category as the cash flows of the items being hedged. For additional information relating to interest rate swap agreements, see Note 10.

The Company also has residential real estate derivatives for commitments to fund certain residential real estate loans (interest rate locks) to be sold into the secondary market and forward commitments for the future delivery of residential real estate loans to third party investors on a best efforts basis. It is the Company’s practice to enter into forward commitments for the future delivery of residential real estate loans when interest rate lock commitments are entered into in order to economically hedge the effect of changes in interest rates resulting from its commitments to fund the loans. These derivatives are not designated in hedge relationships. Such derivatives are short-term in nature and changes in fair value are not recorded as gains on sale of loans because the change is not significant.

Stock-based Compensation

Stock-based compensation awards granted, comprised of stock options and restricted stock awards, are valued at fair value and compensation cost is recognized on a straight-line basis, net of estimated forfeitures, over the requisite service period of each award. For additional information relating to stock-based compensation, see Note 12.

Advertising and Promotion

Advertising and promotion costs are recognized in the period incurred.

Income Taxes

The Company’s income tax expense consists of current and deferred income tax expense. Current income tax expense reflects taxes to be paid or refunded for the current period by applying the provisions of enacted tax law to earnings or losses. Deferred income tax expense results from changes in deferred assets and liabilities between periods. The Company recognizes interest and penalties related to income tax matters in income tax expense.

Deferred tax assets and liabilities are recognized for estimated future income tax consequences attributable to differences between the financial statement carrying amounts of assets and liabilities and their respective tax bases. The effect on deferred tax assets and liabilities of a change in income tax rates is recognized in income in the period that includes the enactment date.

Deferred tax assets are reduced by a valuation allowance if, based on the weight of available evidence, it is more-likely-than-not that some portion or all of the deferred tax assets will not be realized. The term more-likely-than-not means a likelihood of more than fifty percent. The recognition threshold considers the facts, circumstances, and information available at the reporting date and is subject to the Company’s judgment. In assessing the need for a valuation allowance, the Company considers both positive and negative evidence. For additional information relating to income taxes, see Note 15.

Comprehensive Income

Comprehensive income consists of net income and other comprehensive income (“OCI”). OCI includes unrealized gains and losses, net of tax effect, on available-for-sale securities and derivatives used for cash flow hedges.

Earnings Per Share

Basic earnings per share is computed by dividing net income by the weighted-average number of shares of common stock outstanding during the period presented. Diluted earnings per share is computed by including the net increase in shares as if dilutive outstanding stock options were exercised and restricted stock awards were vested, using the treasury stock method. For additional information relating to earnings per share, see Note 17.

Reclassifications

Certain reclassifications have been made to the 2014 and 2013 financial statements to conform to the 2015 presentation.

Note 1. Nature of Operations and Summary of Significant Accounting Policies (continued)

Impact of Recent Authoritative Accounting Guidance

The Accounting Standards Codification^™ (“ASC”) is the Financial Accounting Standards Board’s (“FASB”) officially recognized source of authoritative GAAP applicable to all public and non-public non-governmental entities. Rules and interpretive releases of the Securities and Exchange Commission (“SEC”) under the authority of the federal securities laws are also sources of authoritative GAAP for the Company as an SEC registrant. All other accounting literature is non-authoritative. The following paragraphs provide descriptions of recently adopted or newly issued but not yet effective accounting standards that could have a material effect on the Company’s financial position or results of operations.

In January 2016, FASB amended FASB ASC Topic 825, Financial Instruments. The amendments in this Update address certain aspects of recognition, measurement, presentation, and disclosure of financial instruments. The amendments are effective for public business entities for the first interim and annual reporting periods beginning after December 15, 2017. Early adoption is only permitted under certain circumstances outlined in the amendments. A reporting entity should apply the amendments by means of a cumulative-effect adjustment to the Company’s statement of financial condition as of the beginning of the reporting year of adoption. The amendments related to equity securities without readily determinable fair values should be applied prospectively. The Company is currently evaluating the impact of these amendments, but does not expect them to have a material effect on the Company’s financial position or results of operations.

In September 2015, FASB amended FASB ASC Topic 805, Business Combinations. The amendments in this Update require that an acquirer recognize adjustments to provisional amounts that are identified during the measurement period in the reporting period in which the adjustments are necessary. The amendments in this Update require that the acquirer record, in the same period’s financial statements, the effect on earnings of changes in depreciation, amortization, or other income effects, if any, as a result of the change to the provisional amounts, calculated as if the accounting had been completed at the acquisition date. The amendments in this Update require an entity to present separately on the face of the income statement or disclose in the notes the portion of the amount recorded in current-period earnings by line item that would have been recorded in previous reporting periods if the adjustment to the provisional amounts had been recognized as of the acquisition date. The amendments should be applied prospectively to all periods presented and are effective for public business entities for annual periods and interim periods within those annual periods, beginning after December 15, 2015. The Company has evaluated the impact of these amendments and determined there would not be a material effect on the Company’s financial position or results of operations.

In February 2015, FASB amended FASB ASC Topic 810, Consolidation. The amendments in this Update make targeted changes to the current consolidation guidance and end a deferral available for investment companies. The amendments modify the evaluation of whether limited partnerships and similar legal entities are VIEs or voting interest entities. Consolidation conclusions may change for entities that already are VIEs due to changes in how entities would analyze related-party relationships and fee arrangements. The amendments relax existing criteria for determining when fees paid to a decision maker or service provider do not represent a variable interest by focusing on whether those fees are “at market.” The amendments eliminate both the consolidation model specific to limited partnerships and the current presumption that a general partner controls a limited partnership. Application of the new amendments could result in some entities being deconsolidated or considered a VIE and subject to additional disclosures. The amendments are effective for public business entities for the first interim and annual reporting periods beginning after December 15, 2015. Early adoption is permitted, including adoption in an interim period with any adjustments reflected as of the beginning of the reporting year that includes the interim period. A reporting entity may apply the amendments using a modified retrospective approach by recording a cumulative-effect adjustment to equity as of the beginning of the reporting year of adoption or may apply the amendments retrospectively. The Company is currently evaluating the impact of these amendments, but does not expect them to have a material effect on the Company’s financial position or results of operations.

In August 2014, FASB amended FASB ASC Subtopic 310-40, Receivables - Troubled Debt Restructurings by Creditors. The amendment requires that a mortgage loan be derecognized and that a separate other receivable be recognized upon foreclosure if the following conditions are met: 1) The loan has a government guarantee that is not separable from the loan before foreclosure; 2) At the time of foreclosure, the creditor has the intent to convey the real estate property to the guarantor and make a claim on the guarantee, and the creditor has the ability to recover under that claim; and 3) At the time of foreclosure, any amount of the claim that is determined on the basis of the fair value of the real estate is fixed. Upon foreclosure, the separate other receivable should be measured based on the amount of the loan balance (principal and interest) expected to be recovered from the guarantor. The amendment is effective for public business entities for interim and annual periods beginning after December 15, 2014. An entity can elect to adopt the amendments using either a prospective transition method or a modified retrospective method as defined in the amendment. The Company has evaluated the impact of the adoption of this amendment and determined there was not a material effect on the Company’s financial position or results of operations.

Note 1. Nature of Operations and Summary of Significant Accounting Policies (continued)

In June 2014, FASB amended FASB ASC Topic 860, Transfers and Servicing. The amendments in this Update require the following accounting changes: 1) change the accounting for repurchase-to-maturity transactions to secured borrowing accounting; and 2) for repurchase finance arrangements, require separate accounting for a transfer of a financial asset executed contemporaneously with a repurchase agreement with the same counterparty, which will result in a secured borrowing accounting for the repurchase agreement. The amendments also require certain disclosures for securities sold under agreements to repurchase (“repurchase agreements”), securities lending transactions, and repurchase-to-maturity transactions that are accounted for as secured borrowings. The accounting changes are effective for public business entities for the first interim or annual reporting periods beginning after December 15, 2014. Early application for public business entities is not permitted. The disclosure changes for repurchase agreements are effective for public business entities for annual reporting periods beginning after December 15, 2014. The Company has evaluated the impact of the adoption of this amendment and determined there was not a material effect on the Company’s financial position or results of operations.

In May 2014, FASB amended FASB ASC Topic 606, Revenue from Contracts with Customers. The amendments clarify the principals for recognizing revenue and develop a common revenue standard among industries. The new guidance establishes the following core principal: recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for goods or services. Five steps are provided for a company or organization to follow to achieve such core principle. The new guidance also includes a cohesive set of disclosure requirements that will provide users of financial statements with comprehensive information about the nature, amount, timing, and uncertainty of revenue and cash flows arising from contracts with customers. The entity should apply the amendments using one of two retrospective methods described in the amendment. Accounting Standards Update No 2015-14, Revenue from Contracts with Customers (Topic 606) delayed the effective date for public entities to annual reporting periods beginning after December 15, 2017, including interim reporting periods within that reporting period. Early application is permitted only as of annual reporting periods beginning after December 15, 2016, including interim reporting periods within that reporting period. The Company is currently evaluating the impact of these amendments, but does not expect them to have a material effect on the Company’s financial position or results of operations.

In January 2014, FASB amended FASB ASC Subtopic 310-40, Receivables - Troubled Debt Restructurings by Creditors. The amendment clarifies that an in substance repossession foreclosure occurs when a creditor is considered to have received physical possession of residential real estate property collateralizing a consumer mortgage loan, upon either 1) the creditor obtaining legal title to the residential real estate property upon completion of a foreclosure; or 2) the borrower conveying all interest in the residential real estate property to the creditor to satisfy that loan through completion of a deed-in-lieu of foreclosure or through a similar legal agreement. Additionally, the amendment requires interim and annual disclosure of both 1) the amount of foreclosed residential real estate property held by the creditor; and 2) the recorded investment in consumer mortgage loans collateralized by residential real estate property that are in the process of foreclosure according to local requirements of the applicable jurisdiction. The amendment is effective for public business entities for interim and annual periods beginning after December 15, 2014. An entity can elect to adopt the amendments using either a modified retrospective transition method or a prospective transition method as defined in the amendment. The Company has evaluated the impact of the adoption of this amendment and determined there was not a material effect on the Company’s financial position or results of operations.

In January 2014, FASB amended FASB ASC Topic 323, Investments - Equity Method and Joint Ventures. The amendments permit entities to make an accounting policy election for their investments in qualified affordable housing projects using the proportional amortization method if certain conditions are met. Under the proportional amortization method, an entity amortizes the initial cost of the investment in proportion to the tax credits and other tax benefits received and recognizes the net investment performance in the income statement as a component of income tax expense. The amendments should be applied retrospectively to all periods presented and are effective for public business entities for annual periods and interim periods within those annual periods, beginning after December 15, 2014. The adoption of these amendments did not have a material effect on the Company’s financial position or results of operations.

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Investment Securities

12 Months Ended

Dec. 31, 2015

Investments, Debt and Equity Securities [Abstract]

Investment Securities

Investment Securities

The following tables present the amortized cost, the gross unrealized gains and losses and the fair value of the Company’s investment securities:

	December 31, 2015
	Amortized Cost		Gross Unrealized			Fair Value
(Dollars in thousands)			Gains	Losses
Available-for-sale
U.S. government and federal agency	$	47,868	15	(432	)	47,451
U.S. government sponsored enterprises	93,230		100	(163	)	93,167
State and local governments	856,738		34,159	(5,878	)	885,019
Corporate bonds	386,629		611	(3,077	)	384,163
Residential mortgage-backed securities	1,203,548		6,180	(8,768	)	1,200,960
Total available-for-sale	2,588,013		41,065	(18,318	)	2,610,760
Held-to-maturity
State and local governments	702,072		31,863	(4,422	)	729,513
Total held-to-maturity	702,072		31,863	(4,422	)	729,513
Total investment securities	$	3,290,085	72,928	(22,740	)	3,340,273

	December 31, 2014
	Amortized Cost		Gross Unrealized			Fair Value
(Dollars in thousands)			Gains	Losses
Available-for-sale
U.S. government and federal agency	$	44	—	—		44
U.S. government sponsored enterprises	21,916		31	(2	)	21,945
State and local governments	962,365		40,173	(4,569	)	997,969
Corporate bonds	313,545		2,059	(750	)	314,854
Residential mortgage-backed securities	1,043,897		11,205	(2,486	)	1,052,616
Total available-for-sale	2,341,767		53,468	(7,807	)	2,387,428
Held-to-maturity
State and local governments	520,997		32,925	(2,976	)	550,946
Total held-to-maturity	520,997		32,925	(2,976	)	550,946
Total investment securities	$	2,862,764	86,393	(10,783	)	2,938,374

Note 2. Investment Securities (continued)

The following table presents the amortized cost and fair value of available-for-sale and held-to-maturity securities by contractual maturity at December 31, 2015. Actual maturities may differ from expected or contractual maturities since issuers have the right to prepay obligations with or without prepayment penalties.

	December 31, 2015
	Available-for-Sale			Held-to-Maturity
(Dollars in thousands)	Amortized Cost		Fair Value	Amortized Cost	Fair Value
Due within one year	$	140,703	141,230	—	—
Due after one year through five years	486,235		484,467	—	—
Due after five years through ten years	128,158		131,883	25,073	25,605
Due after ten years	629,369		652,220	676,999	703,908
	1,384,465		1,409,800	702,072	729,513
Residential mortgage-backed securities 1	1,203,548		1,200,960	—	—
Total	$	2,588,013	2,610,760	702,072	729,513

________

¹Residential mortgage-backed securities, which have prepayment provisions, are not assigned to maturity categories due to fluctuations in their prepayment speeds.

Proceeds from sales and calls of investment securities and the associated gains and losses that have been included in earnings are listed below:

	Years ended
(Dollars in thousands)	December 31, 2015			December 31, 2014		December 31, 2013
Available-for-sale
Proceeds from sales and calls of investment securities	$	167,660		219,849		181,971
Gross realized gains 1	1,877			501		3,723
Gross realized losses 1	(1,808		)	(705	)	(4,022	)
Held-to-maturity
Proceeds from calls of investment securities	20,997			8,930		—
Gross realized gains 1	50			22		—
Gross realized losses 1	(100		)	(6	)	—

__________

¹The gain or loss on the sale or call of each investment security is determined by the specific identification method.

At December 31, 2015 and 2014, the Company had investment securities with carrying values of $1,824,819,000 and $1,673,263,000, respectively, pledged as collateral for FHLB advances, FRB discount window borrowings, repurchase agreements, interest rate swap agreements and deposits of several local government units.

Note 2. Investment Securities (continued)

Investment securities with an unrealized loss position are summarized as follows:

	December 31, 2015
	Less than 12 Months				12 Months or More			Total
(Dollars in thousands)	Fair Value		Unrealized Loss		Fair Value	Unrealized Loss		Fair Value	Unrealized Loss
Available-for-sale
U.S. government and federal agency	$	42,493	(432	)	2	—		42,495	(432	)
U.S. government sponsored enterprises	60,010		(163	)	—	—		60,010	(163	)
State and local governments	102,422		(1,629	)	115,943	(4,249	)	218,365	(5,878	)
Corporate bonds	228,258		(1,812	)	13,962	(1,265	)	242,220	(3,077	)
Residential mortgage-backed securities	730,412		(7,226	)	53,021	(1,542	)	783,433	(8,768	)
Total available-for-sale	$	1,163,595	(11,262	)	182,928	(7,056	)	1,346,523	(18,318	)
Held-to-maturity
State and local governments	$	42,322	(594	)	81,709	(3,828	)	124,031	(4,422	)
Total held-to-maturity	$	42,322	(594	)	81,709	(3,828	)	124,031	(4,422	)

	December 31, 2014
	Less than 12 Months				12 Months or More			Total
(Dollars in thousands)	Fair Value		Unrealized Loss		Fair Value	Unrealized Loss		Fair Value	Unrealized Loss
Available-for-sale
U.S. government and federal agency	$	—	—		3	—		3	—
U.S. government sponsored enterprises	13,793		(2	)	—	—		13,793	(2	)
State and local governments	91,082		(1,273	)	115,927	(3,296	)	207,009	(4,569	)
Corporate bonds	60,289		(545	)	7,874	(205	)	68,163	(750	)
Residential mortgage-backed securities	192,962		(926	)	78,223	(1,560	)	271,185	(2,486	)
Total available-for-sale	$	358,126	(2,746	)	202,027	(5,061	)	560,153	(7,807	)
Held-to-maturity
State and local governments	$	18,643	(624	)	76,761	(2,352	)	95,404	(2,976	)
Total held-to-maturity	$	18,643	(624	)	76,761	(2,352	)	95,404	(2,976	)

Based on an analysis of its investment securities with unrealized losses as of December 31, 2015 and 2014, the Company determined that none of such securities had other-than-temporary impairment and the unrealized losses were primarily the result of interest rate changes and market spreads subsequent to acquisition. The fair value of the investment securities is expected to recover as payments are received and the securities approach maturity. At December 31, 2015, management determined that it did not intend to sell investment securities with unrealized losses, and there was no expected requirement to sell any of its investment securities with unrealized losses before recovery of their amortized cost.

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Loans Receivable, Net

12 Months Ended

Dec. 31, 2015

Receivables [Abstract]

Loans Receivable, Net

Loans Receivable, Net

The Company’s loan portfolio is comprised of three segments: residential real estate, commercial, and consumer and other loans. The loan segments are further disaggregated into the following classes: residential real estate, commercial real estate, other commercial, home equity and other consumer loans. The following table presents loans receivable for each portfolio class of loans:

	At or for the Year ended
(Dollars in thousands)	December 31, 2015			December 31, 2014
Residential real estate loans	$	688,912		611,463
Commercial loans
Real estate	2,633,953			2,337,548
Other commercial	1,099,564			925,900
Total	3,733,517			3,263,448
Consumer and other loans
Home equity	420,901			394,670
Other consumer	235,351			218,514
Total	656,252			613,184
Loans receivable 1	5,078,681			4,488,095
Allowance for loan and lease losses	(129,697		)	(129,753	)
Loans receivable, net	$	4,948,984		4,358,342
Weighted-average interest rate on loans (tax-equivalent)	4.84		%	4.86	%

__________

¹  Includes net deferred fees, costs, premiums and discounts of $15,529,000 and $13,710,000 at December 31, 2015 and 2014, respectively.

The following tables summarize the activity in the ALLL by portfolio segment:

	Year ended December 31, 2015
(Dollars in thousands)	Total			Residential Real Estate		Commercial Real Estate		Other Commercial		Home Equity		Other Consumer
Balance at beginning of period	$	129,753		14,680		67,799		30,891		9,963		6,420
Provision for loan losses	2,284			640		(696	)	3,030		(480	)	(210	)
Charge-offs	(7,002		)	(985	)	(1,920	)	(2,322	)	(809	)	(966	)
Recoveries	4,662			92		2,694		926		324		626
Balance at end of period	$	129,697		14,427		67,877		32,525		8,998		5,870

	Year ended December 31, 2014
(Dollars in thousands)	Total			Residential Real Estate		Commercial Real Estate		Other Commercial		Home Equity		Other Consumer
Balance at beginning of period	$	130,351		14,067		70,332		28,630		9,299		8,023
Provision for loan losses	1,912			716		(2,877	)	3,708		1,254		(889	)
Charge-offs	(7,603		)	(431	)	(1,802	)	(3,058	)	(1,038	)	(1,274	)
Recoveries	5,093			328		2,146		1,611		448		560
Balance at end of period	$	129,753		14,680		67,799		30,891		9,963		6,420

Note 3. Loans Receivable, Net (continued)

	Year ended December 31, 2013
(Dollars in thousands)	Total			Residential Real Estate		Commercial Real Estate		Other Commercial		Home Equity		Other Consumer
Balance at beginning of period	$	130,854		15,482		74,398		21,567		10,659		8,748
Provision for loan losses	6,887			(921	)	(3,670	)	10,271		868		339
Charge-offs	(13,643		)	(793	)	(3,736	)	(4,671	)	(2,594	)	(1,849	)
Recoveries	6,253			299		3,340		1,463		366		785
Balance at end of period	$	130,351		14,067		70,332		28,630		9,299		8,023

The following tables disclose the balance in the ALLL and the recorded investment in loans by portfolio segment:

	December 31, 2015
(Dollars in thousands)	Total		Residential Real Estate	Commercial Real Estate	Other Commercial	Home Equity	Other Consumer
Allowance for loan and lease losses
Individually evaluated for impairment	$	8,124	782	1,629	5,277	64	372
Collectively evaluated for impairment	121,573		13,645	66,248	27,248	8,934	5,498
Total allowance for loan and lease losses	$	129,697	14,427	67,877	32,525	8,998	5,870
Loans receivable
Individually evaluated for impairment	$	140,773	20,767	85,845	23,874	6,493	3,794
Collectively evaluated for impairment	4,937,908		668,145	2,548,108	1,075,690	414,408	231,557
Total loans receivable	$	5,078,681	688,912	2,633,953	1,099,564	420,901	235,351

	December 31, 2014
(Dollars in thousands)	Total		Residential Real Estate	Commercial Real Estate	Other Commercial	Home Equity	Other Consumer
Allowance for loan and lease losses
Individually evaluated for impairment	$	11,597	853	2,967	6,836	447	494
Collectively evaluated for impairment	118,156		13,827	64,832	24,055	9,516	5,926
Total allowance for loan and lease losses	$	129,753	14,680	67,799	30,891	9,963	6,420
Loans receivable
Individually evaluated for impairment	$	161,366	19,576	105,264	25,321	6,901	4,304
Collectively evaluated for impairment	4,326,729		591,887	2,232,284	900,579	387,769	214,210
Total loans receivable	$	4,488,095	611,463	2,337,548	925,900	394,670	218,514

Substantially all of the Company’s loans receivable are with customers in the Company’s geographic market areas. Although the Company has a diversified loan portfolio, a substantial portion of its customers’ ability to honor their obligations is dependent upon the economic performance in the Company’s market areas. The Company is subject to regulatory limits for the amount of loans to any individual borrower and the Company is in compliance with this regulation as of December 31, 2015 and 2014. No borrower had outstanding loans or commitments exceeding 10 percent of the Company’s consolidated stockholders’ equity as of December 31, 2015.

At December 31, 2015, the Company had $3,298,198,000 in variable rate loans and $1,780,483,000 in fixed rate loans. At December 31, 2015, 2014, and 2013, loans sold and serviced for others were $128,499,000, $133,768,000, and $148,376,000, respectively. At December 31, 2015, the Company had loans of $2,899,827,000 pledged as collateral for FHLB advances and FRB discount window. There were no significant purchases or sales of portfolio loans during 2015, 2014 and 2013.

Note 3. Loans Receivable, Net (continued)

The Company has entered into transactions with its executive officers and directors and their affiliates. The aggregate amount of loans outstanding to such related parties at December 31, 2015 and 2014 was $57,764,000 and $55,427,000, respectively. During 2015, new loans to such related parties were $10,435,000 and repayments were $8,098,000. In management’s opinion, such loans were made in the ordinary course of business and were made on substantially the same terms as those prevailing at the time for comparable transaction with other persons.

The following tables disclose information related to impaired loans by portfolio segment:

	At or for the Year ended December 31, 2015
(Dollars in thousands)	Total		Residential Real Estate	Commercial Real Estate	Other Commercial	Home Equity	Other Consumer
Loans with a specific valuation allowance
Recorded balance	$	34,683	8,253	12,554	11,923	102	1,851
Unpaid principal balance	36,157		9,198	12,581	12,335	109	1,934
Specific valuation allowance	8,124		782	1,629	5,277	64	372
Average balance	36,176		6,393	15,827	11,768	426	1,762
Loans without a specific valuation allowance
Recorded balance	$	106,090	12,514	73,291	11,951	6,391	1,943
Unpaid principal balance	132,718		13,969	94,028	15,539	7,153	2,029
Average balance	116,356		13,615	78,684	15,479	6,350	2,228
Total
Recorded balance	$	140,773	20,767	85,845	23,874	6,493	3,794
Unpaid principal balance	168,875		23,167	106,609	27,874	7,262	3,963
Specific valuation allowance	8,124		782	1,629	5,277	64	372
Average balance	152,532		20,008	94,511	27,247	6,776	3,990

	At or for the Year ended December 31, 2014
(Dollars in thousands)	Total		Residential Real Estate	Commercial Real Estate	Other Commercial	Home Equity	Other Consumer
Loans with a specific valuation allowance
Recorded balance	$	45,688	4,110	27,155	11,377	1,214	1,832
Unpaid principal balance	48,477		4,276	28,048	12,461	1,336	2,356
Specific valuation allowance	11,597		853	2,967	6,836	447	494
Average balance	53,339		5,480	24,519	19,874	1,039	2,427
Loans without a specific valuation allowance
Recorded balance	$	115,678	15,466	78,109	13,944	5,687	2,472
Unpaid principal balance	145,038		16,683	100,266	19,117	6,403	2,569
Average balance	128,645		15,580	89,015	14,024	7,163	2,863
Total
Recorded balance	$	161,366	19,576	105,264	25,321	6,901	4,304
Unpaid principal balance	193,515		20,959	128,314	31,578	7,739	4,925
Specific valuation allowance	11,597		853	2,967	6,836	447	494
Average balance	181,984		21,060	113,534	33,898	8,202	5,290

Interest income recognized on impaired loans for the years ended December 31, 2015, 2014, and 2013 was not significant.

Note 3. Loans Receivable, Net (continued)

The following tables present an aging analysis of the recorded investment in loans by portfolio segment:

	December 31, 2015
(Dollars in thousands)	Total		Residential Real Estate	Commercial Real Estate	Other Commercial	Home Equity	Other Consumer
Accruing loans 30-59 days past due	$	15,801	4,895	4,393	3,564	1,601	1,348
Accruing loans 60-89 days past due	3,612		961	1,841	286	280	244
Accruing loans 90 days or more past due	2,131		—	231	1,820	15	65
Non-accrual loans	51,133		8,073	28,819	7,691	6,022	528
Total past due and non-accrual loans	72,677		13,929	35,284	13,361	7,918	2,185
Current loans receivable	5,006,004		674,983	2,598,669	1,086,203	412,983	233,166
Total loans receivable	$	5,078,681	688,912	2,633,953	1,099,564	420,901	235,351

	December 31, 2014
(Dollars in thousands)	Total		Residential Real Estate	Commercial Real Estate	Other Commercial	Home Equity	Other Consumer
Accruing loans 30-59 days past due	$	19,139	3,506	7,925	5,310	1,374	1,024
Accruing loans 60-89 days past due	6,765		1,686	3,592	609	679	199
Accruing loans 90 days or more past due	214		35	31	74	17	57
Non-accrual loans	61,882		6,798	39,717	8,421	5,969	977
Total past due and non-accrual loans	88,000		12,025	51,265	14,414	8,039	2,257
Current loans receivable	4,400,095		599,438	2,286,283	911,486	386,631	216,257
Total loans receivable	$	4,488,095	611,463	2,337,548	925,900	394,670	218,514

Interest income that would have been recorded on non-accrual loans if such loans had been current for the entire period would have been approximately $2,471,000, $3,005,000, and $4,122,000 for the years ended December 31, 2015, 2014, and 2013, respectively.

The following tables present TDRs that occurred during the periods presented and the TDRs that occurred within the previous twelve months that subsequently defaulted during the periods presented:

	Year ended December 31, 2015
(Dollars in thousands)	Total		Residential Real Estate	Commercial Real Estate	Other Commercial	Home Equity	Other Consumer
TDRs that occurred during the period
Number of loans	64		3	25	22	1	13
Pre-modification recorded balance	$	22,316	2,259	8,877	10,545	137	498
Post-modification recorded balance	$	23,110	2,203	9,927	10,325	157	498
TDRs that subsequently defaulted
Number of loans	7		1	1	4	—	1
Recorded balance	$	2,556	1,947	78	529	—	2

Note 3. Loans Receivable, Net (continued)

	Year ended December 31, 2014
(Dollars in thousands)	Total		Residential Real Estate	Commercial Real Estate	Other Commercial	Home Equity	Other Consumer
TDRs that occurred during the period
Number of loans	51		—	18	24	6	3
Pre-modification recorded balance	$	37,781	—	21,760	12,522	3,385	114
Post-modification recorded balance	$	37,075	—	21,803	11,884	3,274	114
TDRs that subsequently defaulted
Number of loans	5		—	2	1	2	—
Recorded balance	$	4,453	—	927	693	2,833	—

	Year ended December 31, 2013
(Dollars in thousands)	Total		Residential Real Estate	Commercial Real Estate	Other Commercial	Home Equity	Other Consumer
TDRs that occurred during the period
Number of loans	63		9	21	23	2	8
Pre-modification recorded balance	$	29,046	1,907	20,334	6,087	147	571
Post-modification recorded balance	$	29,359	2,293	20,334	6,087	147	498
TDRs that subsequently defaulted
Number of loans	5		1	1	3	—	—
Recorded balance	$	849	265	79	505	—	—

The modifications for the TDRs that occurred during the years ended December 31, 2015, 2014 and 2013 included one or a combination of the following: an extension of the maturity date, a reduction of the interest rate or a reduction in the principal amount.

In addition to the TDRs that occurred during the period provided in the preceding tables, the Company had TDRs with pre-modification loan balances of $8,893,000, $12,674,000 and $18,345,000 for the years ended December 31, 2015, 2014 and 2013, respectively, for which OREO was received in full or partial satisfaction of the loans. The majority of such TDRs were in commercial real estate for the years ended December 31, 2015, 2014 and 2013. At December 31, 2015 and 2014, the Company had $3,253,000 and $698,000, respectively, of consumer mortgage loans secured by residential real estate properties for which formal foreclosure proceedings are in process. At December 31, 2015 and 2014, the Company had $1,496,000 and $2,322,000, respectively, of OREO secured by residential real estate properties.

There were $2,803,000 and $4,263,000 of additional unfunded commitments on TDRs outstanding at December 31, 2015 and 2014, respectively. The amount of charge-offs on TDRs during 2015, 2014 and 2013 was $1,310,000, $1,361,000 and $1,945,000, respectively.

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Premises and Equipment

12 Months Ended

Dec. 31, 2015

Property, Plant and Equipment [Abstract]

Premises and Equipment

Premises and Equipment

Premises and equipment, net of accumulated depreciation, consist of the following:

(Dollars in thousands)	December 31, 2015			December 31, 2014
Land	$	30,108		27,605
Office buildings and construction in progress	187,787			172,544
Furniture, fixtures and equipment	78,803			70,622
Leasehold improvements	8,028			7,813
Accumulated depreciation	(110,696		)	(99,409	)
Net premises and equipment	$	194,030		179,175

Depreciation expense for the years ended December 31, 2015, 2014, and 2013 was $14,365,000, $12,108,000, and $10,485,000, respectively.

The Company leases certain land, premises and equipment from third parties under operating and capital leases. Total rent expense for the years ended December 31, 2015, 2014, and 2013 was $3,137,000, $2,786,000, and $2,912,000, respectively. Amortization of building capital lease assets is included in depreciation. The Company has entered into lease transactions with related parties. Rent expense with such related parties for the years ended December 31, 2015, 2014, and 2013 was $150,000, $146,000, and $142,000, respectively.

The total future minimum rental commitments required under operating and capital leases that have initial or remaining noncancelable lease terms in excess of one year at December 31, 2015 are as follows:

(Dollars in thousands)	Capital Leases		Operating Leases	Total
Years ending December 31,
2016	$	92	2,443	2,535
2017	92		2,132	2,224
2018	92		1,877	1,969
2019	92		1,682	1,774
2020	92		1,160	1,252
Thereafter	11		3,202	3,213
Total minimum lease payments	471		12,496	12,967
Less: Amount representing interest	64
Present value of minimum lease payments	407
Less: Current portion of obligations under capital leases	72
Long-term portion of obligations under capital leases	$	335

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Other Intangible Assets and Goodwill

12 Months Ended

Dec. 31, 2015

Goodwill and Intangible Assets Disclosure [Abstract]

Other Intangible Assets and Goodwill

Other Intangible Assets and Goodwill

The following table sets forth information regarding the Company’s core deposit intangibles:

	At or for the Years ended
(Dollars in thousands)	December 31, 2015			December 31, 2014		December 31, 2013
Gross carrying value	$	38,527		32,056		27,857
Accumulated amortization	(23,972		)	(21,156	)	(18,345	)
Net carrying value	$	14,555		10,900		9,512
Aggregate amortization expense	$	2,964		2,811		2,401
Weighted-average amortization period	9.7 years
Estimated amortization expense for the years ending December 31,
2016	$	2,923
2017	2,027
2018	1,598
2019	1,512
2020	1,465

Core deposit intangibles increased $6,619,000, $4,199,000 and $5,739,000 during 2015, 2014 and 2013, respectively, due to acquisitions. For additional information relating to acquisitions, see Note 22.

The following table discloses the changes in the carrying value of goodwill:

	Years ended
(Dollars in thousands)	December 31, 2015		December 31, 2014	December 31, 2013
Net carrying value at beginning of period	$	129,706	129,706	106,100
Acquisitions	10,932		—	23,606
Net carrying value at end of period	$	140,638	129,706	129,706

The gross carrying value of goodwill and the accumulated impairment charge consists of the following:

(Dollars in thousands)	December 31, 2015			December 31, 2014
Gross carrying value	$	180,797		169,865
Accumulated impairment charge 1	(40,159		)	(40,159	)
Net carrying value	$	140,638		129,706

__________

¹ A goodwill impairment charge was recognized in 2011 and was due to high levels of volatility and dislocation in bank stock prices nationwide.

Note 5. Other Intangible Assets and Goodwill (continued)

The Company’s first step in evaluating goodwill for possible impairment is a control premium analysis. The analysis first calculates the market capitalization and then adjusts such value for a control premium range which results in an implied fair value. The control premium range is determined based on historical control premiums for acquisitions that are comparable to the Company and is obtained from an independent third party. The calculated implied fair value is then compared to the book value to determine whether the Company needs to proceed to step two of the goodwill impairment assessment. The Company performed its annual goodwill impairment test during the third quarter of 2015 and determined the fair value of the aggregated reporting units exceeded the carrying value, such that the Company’s goodwill was not considered impaired. In recognition there were no events or circumstances that occurred during the fourth quarter of 2015 that would more-likely-than-not reduce the fair value of a reporting unit below its carrying value, the Company did not perform interim testing at December 31, 2015. Changes in the economic environment, operations of the aggregated reporting units, or other factors could result in the decline in the fair value of the aggregated reporting units which could result in a goodwill impairment in the future.

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Variable Interest Entities

12 Months Ended

Dec. 31, 2015

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Variable Interest Entities

Variable Interest Entities

A VIE is a partnership, limited liability company, trust or other legal entity that meets either one of the following criteria; 1) the entity’s total equity investment at risk is not sufficient to permit the entity to finance its activities without additional subordinated financial support from other parties, or 2) the entity has equity investors that cannot make significant decisions about the entity’s operations or that do not absorb their proportionate share of the expected losses or receive the expected returns of the entity. A VIE must be consolidated by the Company if it is deemed to be the primary beneficiary of the VIE, which is the party involved with the VIE that has the power to direct the VIE’s significant activities and will absorb a majority of the expected losses, receive a majority of the expected residual returns, or both.

The Company’s VIEs are regularly monitored to determine if any reconsideration events have occurred that could cause the primary beneficiary status to change. A previously unconsolidated VIE is consolidated when the Company becomes the primary beneficiary. A previously consolidated VIE is deconsolidated when the Company ceases to be the primary beneficiary or the entity is no longer a VIE.

Consolidated Variable Interest Entities

The Company has equity investments in Certified Development Entities (“CDE”) which have received allocations of New Markets Tax Credits (“NMTC”). The Company also has equity investments in Low-Income Housing Tax Credit (“LIHTC”) partnerships. The CDEs and the LIHTC partnerships are VIEs. The underlying activities of the VIEs are community development projects designed primarily to promote community welfare, such as economic rehabilitation and development of low-income areas by providing housing, services, or jobs for residents. The maximum exposure to loss in the VIEs is the amount of equity invested and credit extended by the Company. However, the Company has credit protection in the form of indemnification agreements, guarantees, and collateral arrangements. The primary activities of the VIEs are recognized in commercial loans interest income, other non-interest income and other borrowed funds interest expense on the Company’s statements of operations and the federal income tax credit allocations from the investments are recognized in the Company’s statements of operations as a component of income tax expense. Such related cash flows are recognized in loans originated, principal collected on loans and change in other borrowed funds. The Company has evaluated the variable interests held by the Company in each CDE (NMTC) and LIHTC partnership investment and determined that the Company continues to be the primary beneficiary of such VIEs. As the primary beneficiary, the VIEs’ assets, liabilities, and results of operations are included in the Company’s consolidated financial statements.

Note 6. Variable Interest Entities (continued)

The following table summarizes the carrying amounts of the consolidated VIEs’ assets and liabilities included in the Company’s statements of financial condition and are adjusted for intercompany eliminations. All assets presented can be used only to settle obligations of the consolidated VIEs and all liabilities presented consist of liabilities for which creditors and other beneficial interest holders therein have no recourse to the general credit of the Company.

	December 31, 2015			December 31, 2014
(Dollars in thousands)	CDE (NMTC)		LIHTC	CDE (NMTC)	LIHTC
Assets
Loans receivable	$	57,126	—	36,077	—
Premises and equipment, net	—		13,503	—	13,106
Accrued interest receivable	117		—	116	—
Other assets	887		542	616	258
Total assets	$	58,130	14,045	36,809	13,364
Liabilities
Other borrowed funds	$	4,555	1,640	4,555	1,690
Accrued interest payable	4		5	4	5
Other liabilities	139		—	185	—
Total liabilities	$	4,698	1,645	4,744	1,695

The following table summarizes the net investment loss of the consolidated VIEs and the associated tax credits included in the Company’s statements of operations during the years ended December 31, 2015 and 2014. The net investment loss was included in income before income taxes on the Company’s statements of operations.

	Years ended
	December 31, 2015					December 31, 2014
(Dollars in thousands)	CDE (NMTC)			LIHTC		CDE (NMTC)		LIHTC
VIE loss	$	(1,286	)	(974	)	(879	)	(1,082	)
Federal income tax credits	2,138			1,175		1,744		1,270

Unconsolidated Variable Interest Entities

The Company owns the following trust subsidiaries, each of which issued trust preferred securities as Tier 1 capital instruments: Glacier Capital Trust II, Glacier Capital Trust III, Glacier Capital Trust IV, Citizens (ID) Statutory Trust I, Bank of the San Juans Bancorporation Trust I, First Company Statutory Trust 2001, and First Company Statutory Trust 2003. The trust subsidiaries have no assets, operations, revenues or cash flows other than those related to the issuance, administration and repayment of the securities held by third parties. The trust subsidiaries are not included in the Company’s consolidated financial statements because the sole asset of each trust subsidiary is a receivable from the Company, even though the Company owns all of the voting equity shares of the trust subsidiaries, has fully guaranteed the obligations of the trust subsidiaries and may have the right to redeem the third party securities under certain circumstances. The Company reports the trust preferred securities issued to the trust subsidiaries as subordinated debentures on the Company’s statements of financial condition.

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Deposits

12 Months Ended

Dec. 31, 2015

Deposits [Abstract]

Deposits

Deposits

Time deposits that meet or exceed the Federal Deposit Insurance Corporation Insurance limit of $250,000 at December 31, 2015 and 2014 were $258,573,000 and $314,752,000, respectively.

The scheduled maturities of time deposits are as follows:

(Dollars in thousands)	Amount
Years ending December 31,
2016	$	775,227
2017	149,999
2018	56,554
2019	40,696
2020	36,674
Thereafter	1,500
	$	1,060,650

The Company reclassified $2,966,000 and $4,385,000 of overdraft demand deposits to loans as of December 31, 2015 and 2014, respectively. The Company has entered into deposit transactions with its executive officers, directors and their affiliates. The aggregate amount of deposits with such related parties at December 31, 2015 and 2014 was $15,730,000 and $16,287,000, respectively.

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Borrowings

12 Months Ended

Dec. 31, 2015

Debt Disclosure [Abstract]

Borrowings

Borrowings

The Company’s repurchase agreements totaled $423,414,000 and $397,107,000 at December 31, 2015 and 2014, respectively, and are secured by investment securities with carrying values of $446,838,000 and $479,345,000, respectively. Securities are pledged to customers at the time of the transaction in an amount at least equal to the outstanding balance and are held in custody accounts by third parties. The fair value of collateral is continually monitored and additional collateral is provided as deemed appropriate.

The following tables summarize the carrying value of the Company’s repurchase agreements by remaining contractual maturity and category of collateral:

	December 31, 2015
	Remaining Contractual Maturity of the Agreements
(Dollars in thousands)	Overnight and Continuous		Up to 30 Days	Total
U.S. government sponsored enterprises	$	12,507	—	12,507
Residential mortgage-backed securities	408,460		2,447	410,907
Total	$	420,967	2,447	423,414

	December 31, 2014
	Remaining Contractual Maturity of the Agreements
(Dollars in thousands)	Overnight and Continuous		Up to 30 Days	Total
Residential mortgage-backed securities	$	391,997	5,110	397,107

Note 8. Borrowings (continued)

The Company’s FHLB advances bear a fixed rate of interest and are subject to restrictions or penalties in the event of prepayment. The advances are collateralized by specifically pledged loans and investment securities, FHLB stock owned by the Company, and a blanket assignment of the unpledged qualifying loans and investments. The scheduled maturities of FHLB advances consist of the following:

	December 31, 2015				December 31, 2014
(Dollars in thousands)	Amount		Weighted Rate		Amount		Weighted Rate
Maturing within one year	$	185,091	1.02	%	$	93,979	2.81	%
Maturing one year through two years	179		4.19	%	45,042		2.99	%
Maturing two years through three years	70,597		1.01	%	—		—	%
Maturing three years through four years	167		3.79	%	20,250		2.83	%
Maturing four years through five years	945		4.98	%	174		4.74	%
Thereafter	137,152		3.12	%	137,499		3.12	%
Total	$	394,131	1.76	%	$	296,944	2.98	%

With respect to $200,000,000 of FHLB advances at December 31, 2015, FHLB holds put options that will be exercised on the quarterly measurement date when 3-month LIBOR is 8 percent or greater. The FHLB put option maturities range from 2016 to 2021 and the interest rates range from 2.73 percent to 3.43 percent.

The Company’s remaining borrowings consisted of capital lease obligations and other debt obligations through consolidation of certain VIEs. At December 31, 2015, the Company had $255,000,000 in unsecured lines of credit which are typically renewed on an annual basis with various correspondent entities.

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Subordinated Debentures

12 Months Ended

Dec. 31, 2015

Debt Instruments [Abstract]

Subordinated Debentures

Subordinated Debentures

Trust preferred securities were issued by the Company’s trust subsidiaries, the common stock of which is wholly-owned by the Company, in conjunction with the Company issuing subordinated debentures to the trust subsidiaries. The terms of the subordinated debentures are the same as the terms of the trust preferred securities. The Company guaranteed the payment of distributions and payments for redemption or liquidation of the trust preferred securities to the extent of funds held by the trust subsidiaries. The obligations of the Company under the subordinated debentures together with the guarantee and other back-up obligations, in the aggregate, constitute a full and unconditional guarantee by the Company of the obligations of all trusts under the trust preferred securities.

The trust preferred securities are subject to mandatory redemption upon repayment of the subordinated debentures at their stated maturity date or the earlier redemption in an amount equal to their liquidation amount plus accumulated and unpaid distributions to the date of redemption. Interest distributions are payable quarterly. The Company may defer the payment of interest at any time for a period not exceeding 20 consecutive quarters provided that the deferral period does not extend past the stated maturity. During any such deferral period, distributions on the trust preferred securities will also be deferred and the Company’s ability to pay dividends on its common shares will be restricted.

Subject to prior approval by the FRB, the trust preferred securities may be redeemed at par prior to maturity at the Company’s option on or after the redemption date. All of the Company’s trust preferred securities have reached the redemption date and could be redeemed at the Company’s option. The trust preferred securities may also be redeemed at any time in whole (but not in part) for the Trusts in the event of unfavorable changes in laws or regulations that result in 1) subsidiary trusts becoming subject to federal income tax on income received on the subordinated debentures; 2) interest payable by the Company on the subordinated debentures becoming non-deductible for federal tax purposes; 3) the requirement for the trusts to register under the Investment Company Act of 1940, as amended; or 4) loss of the ability to treat the trust preferred securities as Tier 1 capital under the FRB capital adequacy guidelines.

For regulatory capital purposes, the FRB has allowed bank holding companies to continue to include trust preferred securities in Tier 1 capital up to a certain limit. Provisions of the Dodd-Frank Wall Street Reform and Consumer Protection Act (“Dodd-Frank Act”) require the FRB to exclude trust preferred securities from Tier 1 capital, but a permanent grandfather provision applicable to the Company permits bank holding companies with consolidated assets of less than $15 billion to continue counting existing trust preferred securities as Tier 1 capital until they mature, even after the Company’s total assets exceed $15 billion. All of the Company’s trust preferred securities qualified as Tier 1 capital instruments at December 31, 2015. For additional information on regulatory capital, see Note 11.

Note 9. Subordinated Debentures (continued)

The terms of the subordinated debentures, arranged by maturity date, are reflected in the table below. The amounts include fair value adjustments from acquisitions.

	December 31, 2015				Variable Rate Structure	Maturity Date
(Dollars in thousands)	Balance		Rate
First Company Statutory Trust 2001	$	3,144	3.629	%	3 mo LIBOR plus 3.30%	07/31/2031
First Company Statutory Trust 2003	2,316		3.576	%	3 mo LIBOR plus 3.25%	03/26/2033
Glacier Capital Trust II	46,393		3.071	%	3 mo LIBOR plus 2.75%	04/07/2034
Citizens (ID) Statutory Trust I	5,155		3.176	%	3 mo LIBOR plus 2.65%	06/17/2034
Glacier Capital Trust III	36,083		1.611	%	3 mo LIBOR plus 1.29%	04/07/2036
Glacier Capital Trust IV	30,928		2.082	%	3 mo LIBOR plus 1.57%	09/15/2036
Bank of the San Juans Bancorporation Trust I	1,829		2.234	%	3 mo LIBOR plus 1.82%	03/01/2037
	$	125,848

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Derivatives and Hedging Activities

12 Months Ended

Dec. 31, 2015

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Derivatives and Hedging Activities

Derivatives and Hedging Activities

The Company is exposed to certain risk relating to its ongoing business operations. The primary risk managed by using derivative instruments is interest rate risk. Interest rate swaps are entered into to manage interest rate risk associated with the Company’s forecasted variable rate borrowings. The Company recognizes interest rate swaps as either assets or liabilities at fair value in the statements of financial condition, after taking into account the effects of bilateral collateral and master netting agreements. These agreements allow the Company to settle all interest rate swap agreements held with a single counterparty on a net basis, and to offset net interest rate swap derivative positions with related collateral, where applicable.

The interest rate swaps on variable rate borrowings were designated as cash flow hedges and were over-the-counter contracts. The contracts were entered into by the Company with a single counterparty, and the specific terms and conditions were negotiated, including forecasted notional amounts, interest rates and maturity dates. The Company is exposed to credit-related losses in the event of nonperformance by the counterparty to the agreements. The Company controls the counterparty credit risk by maintaining bilateral collateral agreements and through monitoring policy and procedures. The Company only conducts business with primary dealers and believes that the credit risk inherent in these contracts was not significant.

The Company’s interest rate swap derivative financial instruments as of December 31, 2015 are as follows:

(Dollars in thousands)	Forecasted Notional  Amount		Variable Interest Rate 1	Fixed Interest Rate 1		Payment Term
Interest rate swap	$	160,000	3 month LIBOR	3.378	%	Oct. 21, 2014 - Oct. 21, 2021
Interest rate swap	100,000		3 month LIBOR	2.498	%	Nov. 30, 2015 - Nov. 30, 2022

__________

¹The Company pays the fixed interest rate and the counterparty pays the Company the variable interest rate.

The hedging strategy converts the LIBOR-based variable interest rate on borrowings to a fixed interest rate, thereby protecting the Company from interest rate variability.

Note 10. Derivatives and Hedging Activities (continued)

The interest rate swaps with the $160,000,000 and $100,000,000 notional amounts began their payment terms in October 2014 and November 2015, respectively. The Company designated wholesale deposits as the cash flow hedge and these deposits were determined to be fully effective during the current and prior year. As such, no amount of ineffectiveness has been included in the Company’s statements of operations for the years ended December 31, 2015 and 2014. Therefore, the aggregate fair value of the interest rate swaps was recorded in other liabilities with changes recorded in other comprehensive income. The Company expects the hedges to remain highly effective during the remaining terms of the interest rate swaps. Interest expense recorded on the interest rate swaps totaled $5,695,000 and $1,066,000 during 2015 and 2014, respectively, and is reported as a component of interest expense on deposits. Unless the interest rate swaps are terminated during the next year, the Company expects $7,903,000 of the unrealized loss reported in other comprehensive income at December 31, 2015 to be reclassified to interest expense during the next twelve months.

The following table presents the pre-tax gains or losses recorded in accumulated other comprehensive income and the Company’s statements of operations relating to the interest rate swap derivative financial instruments:

	Years ended
(Dollars in thousands)	December 31, 2015			December 31, 2014		December 31, 2013
Interest rate swaps
Amount of (loss) gain recognized in OCI (effective portion)	$	(7,857	)	(19,557	)	18,728
Amount of loss reclassified from OCI to interest expense	(5,025		)	(993	)	—
Amount of loss recognized in other non-interest expense (ineffective portion)	—			—		—

The following table discloses the offsetting of financial liabilities and interest rate swap derivative liabilities. There were no interest rate swap derivative assets at the dates presented.

	December 31, 2015				December 31, 2014
(Dollars in thousands)	Gross Amounts of Recognized Liabilities		Gross Amounts Offset in the Statements of Financial Position	Net Amounts of Liabilities Presented in the Statements of Financial Position	Gross Amounts of Recognized Liabilities	Gross Amounts Offset in the Statements of Financial Position	Net Amounts of Liabilities Presented in the Statements of Financial Position
Interest rate swaps	$	19,499	—	19,499	16,668	—	16,668

Pursuant to the interest rate swap agreements, the Company pledged collateral to the counterparty in the form of investment securities totaling $25,730,000 at December 31, 2015. There was $0 collateral pledged from the counterparty to the Company as of December 31, 2015. There is the possibility that the Company may need to pledge additional collateral in the future if there were declines in the fair value of the interest rate swap derivative financial instruments versus the collateral pledged.

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Regulatory Capital

12 Months Ended

Dec. 31, 2015

Banking and Thrift [Abstract]

Regulatory Capital

Regulatory Capital

The Federal Reserve has adopted capital adequacy guidelines that are used to assess the adequacy of capital in supervising a bank holding company. Prior to 2015, the regulatory capital requirements effective for the Company followed the Capital Accord of the Basel Committee on Banking Supervision (“Basel I”). The federal banking agencies implemented final rules (the “Final Rules”) to establish a new comprehensive regulatory capital framework with a phase-in period beginning on January 1, 2015 and ending on January 1, 2019. The Final Rules implemented the third installment of the Basel Accords (“Basel III”) regulatory capital reforms and changes required by the Dodd-Frank Act and substantially amend the regulatory risk-based capital rules applicable to the Company. Basel III redefines the regulatory capital elements and minimum capital ratios, introduces regulatory capital buffers above those minimums, revises rules for calculating risk-weighted assets and adds a new component of Tier 1 capital called Common Equity Tier 1, which includes common equity and retained earnings and excludes preferred equity.

Note 11. Regulatory Capital (continued)

Prompt corrective action regulations provide the following classifications: well capitalized, adequately capitalized, undercapitalized, significantly undercapitalized and critically undercapitalized. If undercapitalized, capital distributions (including payment of a dividend) are generally restricted, as is paying management fees to its bank holding company. Failure to meet minimum capital requirements set forth in the table below can initiate certain mandatory and possible additional discretionary actions by regulators that, if undertaken, could have a direct material effect on the Company’s and Bank’s financial condition. The Company’s and Bank’s capital amounts and classification are also subject to qualitative judgments by the regulators about components, risk weightings and other factors.

At December 31, 2015 and 2014, the most recent regulatory notifications categorized the Company and Bank as well capitalized under the regulatory framework for prompt corrective action. To be well capitalized, the Bank must maintain minimum total capital, Tier 1 capital, Common Tier 1 capital and Tier 1 Leverage ratios as set forth in the table below. There are no conditions or events since December 31, 2015 that management believes have changed the Company’s or Bank’s risk-based capital category.

The following tables illustrate the FRB’s adequacy guidelines and the Company’s and the Bank’s compliance with those guidelines:

	December 31, 2015
	Actual				Required for Capital Adequacy Purposes				To Be Well Capitalized Under Prompt Corrective Action Regulations
(Dollars in thousands)	Amount		Ratio		Amount		Ratio		Amount		Ratio
Total capital (to risk-weighted assets)
Consolidated	$	1,131,460	17.17	%	$	527,160	8.00	%	N/A		N/A
Glacier Bank	1,093,669		16.66	%	525,228		8.00	%	656,535		10.00	%
Tier 1 capital (to risk-weighted assets)
Consolidated	$	1,048,505	15.91	%	$	395,370	6.00	%	N/A		N/A
Glacier Bank	1,010,981		15.40	%	393,921		6.00	%	525,228		8.00	%
Common Equity Tier 1 (to risk-weighted assets)
Consolidated	$	926,523	14.06	%	$	296,528	4.50	%	N/A		N/A
Glacier	1,010,981		15.40	%	295,441		4.50	%	426,748		6.50	%
Tier 1 capital (to average assets)
Consolidated	$	1,048,505	12.01	%	$	349,066	4.00	%	N/A		N/A
Glacier Bank	1,010,981		11.66	%	346,715		4.00	%	$	433,394	5.00	%

	December 31, 2014
	Actual				Required for Capital Adequacy Purposes				To Be Well Capitalized Under Prompt Corrective Action Regulations
(Dollars in thousands)	Amount		Ratio		Amount		Ratio		Amount		Ratio
Total capital (to risk-weighted assets)
Consolidated	$	1,065,282	18.93	%	$	450,240	8.00	%	$	562,800	10.00	%
Glacier Bank	1,023,669		18.25	%	448,739		8.00	%	560,924		10.00	%
Tier 1 capital (to risk-weighted assets)
Consolidated	$	994,197	17.67	%	$	225,120	4.00	%	$	337,680	6.00	%
Glacier Bank	952,815		16.99	%	224,370		4.00	%	336,554		6.00	%
Tier 1 capital (to average assets)
Consolidated	$	994,197	12.45	%	$	319,505	4.00	%	N/A		N/A
Glacier Bank	952,815		12.03	%	316,938		4.00	%	$	396,173	5.00	%

__________

N/A - Not applicable

Current guidance from the Federal Reserve provides, among other things, that dividends per share on the Company’s common stock generally should not exceed earnings per share, measured over the previous four fiscal quarters. The Bank is also subject to Montana state law and cannot declare a dividend greater than the previous two years’ net earnings without providing notice to the state.

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Stock-based Compensation Plan

12 Months Ended

Dec. 31, 2015

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Stock-based Compensation Plan

Stock-based Compensation Plan

The Company has two stock-based compensation plans in effect at December 31, 2015. The 2005 Stock Incentive Plan expired in April 2015, but still has non-vested restricted stock awards at December 31, 2015. The 2015 Stock Incentive Plan provides incentives and awards to select employees and directors of the Company and permits the granting of stock options, share appreciation rights, restricted shares, restricted share units, unrestricted shares and performance awards. At December 31, 2015, the number of shares available to award to employees and directors under the 2015 Stock Incentive Plan was 2,485,765.

Stock Options

The Company granted stock options to certain full-time employees and directors of the Company under the 2005 Stock Incentive Plan. There were no stock options granted during 2015, 2014 or 2013.

Compensation expense and the recognized income tax benefit related to stock options for the years ended December 31, 2015, 2014 and 2013 was not significant. There was no unrecognized compensation cost related to stock options as of December 31, 2015.

The total intrinsic value of options exercised during the years ended December 31, 2015, 2014 and 2013 was $13,000, $778,000 and $1,907,000, respectively, and the income tax benefit related to these exercises was $5,000, $302,000 and $742,000. Total cash received from options exercised during the years ended December 31, 2015, 2014 and 2013 was $17,000, $871,000 and $4,327,000.

Changes in shares granted for stock options for the year ended December 31, 2015 are summarized as follows:

	Options		Weighted- Average Exercise Price
Outstanding at December 31, 2014	1,000		$	16.73
Exercised	(1,000	)	16.73
Forfeited or expired	—		—
Outstanding at December 31, 2015	—		—
Exercisable at December 31, 2015	—		—

Restricted Stock Awards

The Company has awarded restricted stock to select employees and directors under the 2005 and 2015 Stock Incentive Plans. Common stock is issued as vesting restrictions lapse, which may be immediately or according to the terms of a vesting schedule. Restricted stock awards may not be sold, pledged or otherwise transferred until restrictions have lapsed. Under the 2005 Stock Incentive Plan, the recipient does not have the right to vote until the restricted stock award has vested but does have the right to receive dividends. Under the 2015 Stock Incentive Plan, the recipient does not have the right to vote or to receive dividends until the restricted stock award has vested. The fair value of the restricted stock awarded is the closing price of the Company’s common stock on the award date.

Compensation expense related to restricted stock awards for the years ended December 31, 2015, 2014 and 2013 was $2,470,000, $1,603,000 and $768,000, respectively, and the recognized income tax benefit related to this expense was $957,000, $622,000 and $299,000. As of December 31, 2015, total unrecognized compensation expense of $2,965,000 related to restricted stock awards is expected to be recognized over a weighted-average period of 2.0 years.

The fair value of restricted stock awards that vested during the years ended December 31, 2015, 2014 and 2013 was $1,761,000, $953,000 and $197,000, respectively, and the income tax benefit related to these awards was $795,000, $532,000 and $77,000, respectively. Upon vesting of restricted stock awards, the shares are issued from the Company’s authorized stock balance.

Note 12. Stock-based Compensation Plan (continued)

The following table summarizes the restricted stock award activity for the year ended December 31, 2015:

	Restricted Stock		Weighted- Average Grant Date Fair Value
Non-vested at December 31, 2014	162,053		$	22.04
Granted	133,414		25.35
Vested	(81,294	)	21.66
Forfeited	(8,184	)	24.36
Non-vested at December 31, 2015	205,989		24.24

The average remaining contractual term on non-vested restricted stock awards at December 31, 2015 is eleven months. The aggregate intrinsic value of the non-vested restricted stock awards at December 31, 2015 was $5,465,000.

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Employee Benefit Plans

12 Months Ended

Dec. 31, 2015

Compensation and Retirement Disclosure [Abstract]

Employee Benefit Plans

Employee Benefit Plans

The Company provides its employees with a comprehensive benefit program, including health, dental and vision insurance, life and accident insurance, long-term disability coverage, vacation and sick leave, 401(k) plan, profit sharing plan and a stock-based compensation plan. The Company has elected to self-insure certain costs related to employee health, dental and vision benefit programs. Costs resulting from noninsured losses are expensed as incurred. The Company has purchased insurance that limits its exposure on an individual claim basis for the employee health benefit programs.

401(k) Plan and Profit Sharing Plan

The Company’s 401(k) plan and profit sharing plan have safe harbor and employer discretionary components. To be considered eligible for the 401(k) and safe harbor components of the profit sharing plan, an employee must be 21 years of age and employed for three full months. Employees are eligible to participate in the 401(k) plan the first day of the month once they have met the eligibility requirements. To be considered eligible for the employer discretionary contribution of the profit sharing plan, an employee must be 21 years of age, worked one full calendar quarter, worked 501 hours in the plan year and be employed as of the last day of the plan year. Participants are at all times fully vested in all contributions.

The profit sharing plan contributions consists of a 3 percent non-elective safe harbor contribution fully funded by the Company and an employer discretionary contribution. The employer discretionary contribution depends on the Company’s profitability. The total profit sharing plan expense for the years ended December 31, 2015, 2014, and 2013 was $8,017,000, $7,107,000 and $5,862,000 respectively.

The 401(k) plan allows eligible employees to contribute up to 60 percent of their eligible annual compensation up to the limit set annually by the Internal Revenue Service (“IRS”). The Company matches an amount equal to 50 percent of the first 6 percent of an employee’s contribution. The Company’s contribution to the 401(k) for the years ended December 31, 2015, 2014 and 2013 was $2,629,000, $2,246,000, and $1,935,000, respectively.

Deferred Compensation Plans

The Company has non-funded deferred compensation plans for directors, senior officers and certain nonemployee service providers. The plans provide for participants’ elective deferral of cash payments of up to 50 percent of a participants’ salary and 100 percent of bonuses and directors fees. The total amount deferred for the plans was $720,000, $591,000, and $376,000, for the years ending December 31, 2015, 2014, and 2013, respectively. The participant receives an earnings credit at a rate equal to 50 percent of the Company’s return on average equity. The total earnings for the years ended December 31, 2015, 2014, and 2013 for the plans was $386,000, $369,000 and $515,000, respectively. In connection with several acquisitions, the Company assumed the obligations of deferred compensation plans for certain key employees. As of December 31, 2015 and 2014, the liability related to the obligations was $11,971,000 and $11,165,000, respectively, and was included in other liabilities. The total earnings for the years ended December 31, 2015, 2014, and 2013 for the acquired plans was insignificant.

Note 13. Employee Benefit Plans (continued)

Supplemental Executive Retirement Plan

The Company has a Supplemental Executive Retirement Plan (“SERP”) which is intended to supplement payments due to participants upon retirement under the Company’s other qualified plans. The Company credits the participant’s account on an annual basis for an amount equal to employer contributions that would have otherwise been allocated to the participant’s account under the tax-qualified plans were it not for limitations imposed by the IRS or the participation in the non-funded deferred compensation plan. Eligible employees include participants of the non-funded deferred compensation plan and employees whose benefits were limited as a result of IRS regulations. The Company’s required contribution to the SERP for the years ended December 31, 2015, 2014 and 2013 was $224,000, $151,000, and $76,000, respectively. The participant receives an earnings credit at a rate equal to 50 percent of the Company’s return on average equity. The total earnings for the years ended December 31, 2015, 2014, and 2013 for this plan was $69,000, $59,000, and $48,000, respectively.

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Other Expenses

12 Months Ended

Dec. 31, 2015

Other Expenses [Abstract]

Other Expenses

Other Expenses

Other expenses consists of the following:

	Years ended
(Dollars in thousands)	December 31, 2015		December 31, 2014	December 31, 2013
Debit card expenses	$	6,153	5,802	6,131
Consulting and outside services	5,525		4,179	3,243
VIE write-downs, losses and other expenses	4,528		4,231	4,210
Employee expenses	4,034		3,557	2,686
Postage	3,716		3,391	3,302
Checking and operating expenses	3,554		3,517	3,091
Printing and supplies	3,530		3,547	3,112
Telephone	3,353		2,911	2,498
Loan expenses	2,824		2,513	2,444
Accounting and audit fees	1,401		1,393	1,146
ATM expenses	1,082		1,268	1,087
Legal fees	1,082		1,455	1,728
Other	3,983		3,884	4,178
Total other expenses	$	44,765	41,648	38,856

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Federal and State Income Taxes

12 Months Ended

Dec. 31, 2015

Income Tax Disclosure [Abstract]

Federal and State Income Taxes

Federal and State Income Taxes

The following table is a summary of consolidated income tax expense:

	Years ended
(Dollars in thousands)	December 31, 2015			December 31, 2014	December 31, 2013
Current
Federal	$	28,705		21,860	18,377
State	9,374			8,118	7,007
Total current income tax expense	38,079			29,978	25,384
Deferred 1
Federal	(3,451		)	5,016	3,918
State	(629		)	915	715
Total deferred income tax (benefit) expense	(4,080		)	5,931	4,633
Total income tax expense	$	33,999		35,909	30,017

__________

¹  Includes tax benefit of operating loss carryforwards of $391,000, $0 and $0 for the years ended December 31, 2015, 2014, and 2013, respectively.

Note 15. Federal and State Income Taxes (continued)

Combined federal and state income tax expense differs from that computed at the federal statutory corporate tax rate as follows:

	Years ended
	December 31, 2015		December 31, 2014		December 31, 2013
Federal statutory rate	35.0	%	35.0	%	35.0	%
State taxes, net of federal income tax benefit	3.7	%	4.0	%	4.0	%
Tax-exempt interest income	(12.6	)%	(11.5	)%	(12.2	)%
Tax credits	(3.0	)%	(2.8	)%	(3.2	)%
Other, net	(0.5	)%	(0.5	)%	0.3	%
Effective tax rate	22.6	%	24.2	%	23.9	%

The tax effect of temporary differences which give rise to a significant portion of deferred tax assets and deferred tax liabilities are as follows:

(Dollars in thousands)	December 31, 2015			December 31, 2014
Deferred tax assets
Allowance for loan and lease losses	$	50,123		50,013
Other real estate owned	8,380			8,200
Deferred compensation	8,166			5,024
Interest rate swap agreements	7,554			6,467
Acquisition fair market value adjustments	5,842			5,302
Income tax credits and net operating loss carryforwards	3,590			4,652
Employee benefits	3,165			2,839
Other	5,433			4,290
Total gross deferred tax assets	92,253			86,787
Deferred tax liabilities
Available-for-sale securities	(8,812		)	(17,716	)
Deferred loan costs	(7,427		)	(6,419	)
Intangibles	(6,272		)	(4,290	)
FHLB stock dividends	(4,601		)	(10,342	)
Depreciation of premises and equipment	(2,376		)	(2,358	)
Other	(4,290		)	(3,925	)
Total gross deferred tax liabilities	(33,778		)	(45,050	)
Net deferred tax asset	$	58,475		41,737

The Company has federal net operating loss carryforwards of $8,882,000 expiring between 2029 and 2031. The Company has Colorado net operating loss carryforwards of $15,985,000 expiring between 2029 and 2031. The net operating loss carryforwards originated from bank acquisitions.

Note 15. Federal and State Income Taxes (continued)

The Company and the Bank file consolidated income tax returns in the following jurisdictions: federal, Montana, Idaho, Colorado and Utah. Although the Bank has operations in Wyoming and Washington, neither Wyoming nor Washington imposes a corporate-level income tax. All required income tax returns have been timely filed. The following schedule summarizes the years that remain subject to examination as of December 31, 2015:

	Years ended December 31,
Federal	2008, 2009, 2010, 2012, 2013 and 2014
Montana	2012, 2013 and 2014
Idaho	2009, 2010, 2011, 2012, 2013 and 2014
Colorado	2008, 2009, 2010, 2011, 2012, 2013 and 2014
Utah	2012, 2013 and 2014

The Company had no unrecognized income tax benefits as of December 31, 2015 and 2014. The Company recognizes interest related to unrecognized income tax benefits in interest expense and penalties are recognized in other expense. Interest expense and penalties recognized with respect to income tax liabilities for the years ended December 31, 2015, 2014, and 2013 was not significant. The Company had no accrued liabilities for the payment of interest or penalties at December 31, 2015 and 2014.

The Company has assessed the need for a valuation allowance and determined that a valuation allowance was not necessary at December 31, 2015 and 2014. The Company believes that it is more-likely-than-not that the Company’s deferred tax assets will be realizable by offsetting future taxable income from reversing taxable temporary differences and anticipated future taxable income (exclusive of reversing temporary differences). In its assessment, the Company considered its strong earnings history, no history of income tax credit carryforwards expiring unused, and no future net operating losses (for tax purposes) are expected.

Retained earnings at December 31, 2015 includes $3,600,000 for which no provision for federal income tax has been made. This amount represents the base year reserve for bad debts, which is essentially an allocation of earnings to pre-1988 bad debt deductions for federal income tax purposes only. This amount is treated as a permanent difference and deferred taxes are not recognized unless it appears that this bad debt reserve will be reduced and thereby result in taxable income in the foreseeable future. The Company is not currently contemplating any changes in its business or operations which would result in a recapture of this reserve for bad debts for federal income tax purposes.

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Accumulated Other Comprehensive Income

12 Months Ended

Dec. 31, 2015

Equity [Abstract]

Accumulated Other Comprehensive Income

Accumulated Other Comprehensive Income

The following table illustrates the activity within accumulated other comprehensive income by component, net of tax:

(Dollars in thousands)	Gains on Available-For-Sale Securities			(Losses) Gains on Derivatives Used for Cash Flow Hedges		Total
Balance at December 31, 2012	$	58,245		(10,283	)	47,962
Other comprehensive (loss) income before reclassification	(49,943		)	11,443		(38,500	)
Amounts reclassified from accumulated other comprehensive income	183			—		183
Net current period other comprehensive (loss) income	(49,760		)	11,443		(38,317	)
Balance at December 31, 2013	8,485			1,160		9,645
Other comprehensive income (loss) before reclassification	19,335			(11,969	)	7,366
Amounts reclassified from accumulated other comprehensive income	125			608		733
Net current period other comprehensive income (loss)	19,460			(11,361	)	8,099
Balance at December 31, 2014	27,945			(10,201	)	17,744
Other comprehensive loss before reclassification	(13,968		)	(4,823	)	(18,791	)
Amounts reclassified from accumulated other comprehensive income	(42		)	3,078		3,036
Net current period other comprehensive loss	(14,010		)	(1,745	)	(15,755	)
Balance at December 31, 2015	$	13,935		(11,946	)	1,989

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Earnings Per Share

12 Months Ended

Dec. 31, 2015

Earnings Per Share [Abstract]

Earnings Per Share

Earnings Per Share

Basic earnings per share is computed by dividing net income by the weighted-average number of shares of common stock outstanding during the period presented. Diluted earnings per share is computed by including the net increase in shares as if dilutive outstanding stock options were exercised and restricted stock awards were vested, using the treasury stock method.

Basic and diluted earnings per share has been computed based on the following:

	Years ended
(Dollars in thousands, except per share data)	December 31, 2015		December 31, 2014	December 31, 2013
Net income available to common stockholders, basic and diluted	$	116,127	112,755	95,644
Average outstanding shares - basic	75,542,455		74,641,957	73,191,713
Add: dilutive stock options and awards	53,126		45,358	68,565
Average outstanding shares - diluted	75,595,581		74,687,315	73,260,278
Basic earnings per share	$	1.54	1.51	1.31
Diluted earnings per share	$	1.54	1.51	1.31

There were 0, 0 and 38,915 stock options or restricted stock awards excluded from the diluted average outstanding share calculation for the years ended December 31, 2015, 2014, and 2013, respectively, because to do so would have been anti-dilutive for those periods. Anti-dilution occurs when the exercise price of a stock option or the unrecognized compensation cost per share of a restricted stock award exceeds the market price of the Company’s stock.

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Parent Holding Company Information (Condensed)

12 Months Ended

Dec. 31, 2015

Condensed Financial Information of Parent Company Only Disclosure [Abstract]

Parent Holding Company Information (Condensed)

Parent Holding Company Information (Condensed)

The following condensed financial information was the unconsolidated information for the parent holding company:

Condensed Statements of Financial Condition

(Dollars in thousands)	December 31, 2015		December 31, 2014
Assets
Cash on hand and in banks	$	1,854	4,019
Interest bearing cash deposits	46,808		51,127
Cash and cash equivalents	48,662		55,146
Investment securities, available-for-sale	65		91
Other assets	11,553		8,511
Investment in subsidiaries	1,175,844		1,121,937
Total assets	$	1,236,124	1,185,685
Liabilities and Stockholders’ Equity
Dividends payable	$	22,893	22,557
Subordinated debentures	125,848		125,705
Other liabilities	10,733		9,376
Total liabilities	159,474		157,638
Common stock	761		750
Paid-in capital	736,368		708,356
Retained earnings	337,532		301,197
Accumulated other comprehensive income	1,989		17,744
Total stockholders’ equity	1,076,650		1,028,047
Total liabilities and stockholders’ equity	$	1,236,124	1,185,685

Condensed Statements of Operations and Comprehensive Income

	Years ended
(Dollars in thousands)	December 31, 2015		December 31, 2014	December 31, 2013
Income
Dividends from subsidiaries	$	109,000	78,500	65,445
Loss on sale of investments	—		—	(3,248	)
Other income	196		199	966
Intercompany charges for services	10,562		9,283	7,387
Total income	119,758		87,982	70,550
Expenses
Compensation and employee benefits	13,205		10,773	9,175
Other operating expenses	7,313		6,824	6,536
Total expenses	20,518		17,597	15,711
Income before income tax benefit and equity in undistributed net income of subsidiaries	99,240		70,385	54,839
Income tax benefit	3,105		2,919	3,676
Income before equity in undistributed net income of subsidiaries	102,345		73,304	58,515
Equity in undistributed net income of subsidiaries	13,782		39,451	37,129
Net Income	$	116,127	112,755	95,644
Comprehensive Income	$	100,372	120,854	57,327

Note 18. Parent Holding Company Information (Condensed) (continued)

Condensed Statements of Cash Flows

	Years ended
(Dollars in thousands)	December 31, 2015			December 31, 2014		December 31, 2013
Operating Activities
Net income	$	116,127		112,755		95,644
Adjustments to reconcile net income to net cash provided by operating activities:
Subsidiary income in excess of dividends distributed	(13,782		)	(39,451	)	(37,129	)
Loss on sale of investments	—			—		3,248
Excess tax (benefits) deficiencies from stock-based compensation	(102		)	(138	)	223
Net change in other assets and other liabilities	307			140		2,575
Net cash provided by operating activities	102,550			73,306		64,561
Investing Activities
Sales of available-for-sale securities	—			—		23,990
Maturities, prepayments and calls of available-for-sale securities	—			—		2,571
Changes in investment securities and other stock - intercompany	—			—		(946	)
Net addition of premises and equipment	(1,405		)	(179	)	(603	)
Net sale (purchase) of non-marketable equity securities	22			(667	)	—
Equity contributions to subsidiaries	(28,457		)	(18,115	)	(11,336	)
Net cash (used in) provided by investing activities	(29,840		)	(18,961	)	13,676
Financing Activities
Net increase in other borrowed funds	143			143		144
Cash dividends paid	(79,456		)	(50,944	)	(44,232	)
Excess tax benefits (deficiencies) from stock-based compensation	102			138		(223	)
Stock-based compensation activity	17			785		4,326
Net cash used in financing activities	(79,194		)	(49,878	)	(39,985	)
Net (decrease) increase in cash and cash equivalents	(6,484		)	4,467		38,252
Cash and cash equivalents at beginning of year	55,146			50,679		12,427
Cash and cash equivalents at end of year	$	48,662		55,146		50,679

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Unaudited Quarterly Financial Data

12 Months Ended

Dec. 31, 2015

Quarterly Financial Information Disclosure [Abstract]

Unaudited Quarterly Financial Data

Unaudited Quarterly Financial Data

Summarized unaudited quarterly financial data is as follows:

	Quarters ended 2015
(Dollars in thousands, except per share data)	March 31		June 30	September 30	December 31
Interest income	$	77,486	78,617	80,367	83,211
Interest expense	7,382		7,369	7,309	7,215
Net interest income	70,104		71,248	73,058	75,996
Provision for loan losses	765		282	826	411
Net interest income after provision for loan losses	69,339		70,966	72,232	75,585
Non-interest income	22,693		25,802	25,799	24,467
Non-interest expense	55,497		59,945	59,112	62,203
Income before income taxes	36,535		36,823	38,919	37,849
Federal and state income tax expense	8,865		7,488	9,305	8,341
Net income	$	27,670	29,335	29,614	29,508
Basic earnings per share	$	0.37	0.39	0.39	0.39
Diluted earnings per share	$	0.37	0.39	0.39	0.39

	Quarters ended 2014
(Dollars in thousands, except per share data)	March 31		June 30	September 30	December 31
Interest income	$	74,087	73,963	75,690	76,179
Interest expense	6,640		6,528	6,430	7,368
Net interest income	67,447		67,435	69,260	68,811
Provision for loan losses	1,122		239	360	191
Net interest income after provision for loan losses	66,325		67,196	68,900	68,620
Non-interest income	19,388		22,504	24,432	23,978
Non-interest expense	50,070		52,673	54,238	55,698
Income before income taxes	35,643		37,027	39,094	36,900
Federal and state income tax expense	8,913		8,350	9,800	8,846
Net income	$	26,730	28,677	29,294	28,054
Basic earnings per share	$	0.36	0.38	0.40	0.37
Diluted earnings per share	$	0.36	0.38	0.40	0.37

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Fair Value of Assets and Liabilities

12 Months Ended

Dec. 31, 2015

Fair Value Disclosures [Abstract]

Fair Value of Assets and Liabilities

Fair Value of Assets and Liabilities

Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. There is a fair value hierarchy which requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. The three levels of inputs that may be used to measure fair value are as follows:

Level 1    Quoted prices in active markets for identical assets or liabilities

Level 2 Observable inputs other than Level 1 prices, such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities

Level 3 Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities

Transfers in and out of Level 1 (quoted prices in active markets), Level 2 (significant other observable inputs) and Level 3 (significant unobservable inputs) are recognized on the actual transfer date. There were no transfers between fair value hierarchy levels during the years ended December 31, 2015 and 2014.

Recurring Measurements

The following is a description of the inputs and valuation methodologies used for assets and liabilities measured at fair value on a recurring basis, as well as the general classification of such assets and liabilities pursuant to the valuation hierarchy. There have been no significant changes in the valuation techniques during the period ended December 31, 2015.

Investment securities, available-for-sale: fair value for available-for-sale securities is estimated by obtaining quoted market prices for identical assets, where available. If such prices are not available, fair value is based on independent asset pricing services and models, the inputs of which are market-based or independently sourced market parameters, including but not limited to, yield curves, interest rates, volatilities, market spreads, prepayments, defaults, recoveries, cumulative loss projections, and cash flows. Such securities are classified in Level 2 of the valuation hierarchy. Where Level 1 or Level 2 inputs are not available, such securities are classified as Level 3 within the hierarchy.

Fair value determinations of available-for-sale securities are the responsibility of the Company’s corporate accounting and treasury departments. The Company obtains fair value estimates from independent third party vendors on a monthly basis. The vendors’ pricing system methodologies, procedures and system controls are reviewed to ensure they are appropriately designed and operating effectively. The Company reviews the vendors’ inputs for fair value estimates and the recommended assignments of levels within the fair value hierarchy. The review includes the extent to which markets for investment securities are determined to have limited or no activity, or are judged to be active markets. The Company reviews the extent to which observable and unobservable inputs are used as well as the appropriateness of the underlying assumptions about risk that a market participant would use in active markets, with adjustments for limited or inactive markets. In considering the inputs to the fair value estimates, the Company places less reliance on quotes that are judged to not reflect orderly transactions, or are non-binding indications. In assessing credit risk, the Company reviews payment performance, collateral adequacy, third party research and analyses, credit rating histories and issuers’ financial statements. For those markets determined to be inactive or limited, the valuation techniques used are models for which management has verified that discount rates are appropriately adjusted to reflect illiquidity and credit risk.

Interest rate swap derivative financial instruments: fair values for interest rate swap derivative financial instruments are based upon the estimated amounts to settle the contracts considering current interest rates and are calculated using discounted cash flows that are observable or that can be corroborated by observable market data and, therefore, are classified within Level 2 of the valuation hierarchy. The inputs used to determine fair value include the 3 month LIBOR forward curve to estimate variable rate cash inflows and the Fed Funds Effective Swap Rate to estimate the discount rate. The estimated variable rate cash inflows are compared to the fixed rate outflows and such difference is discounted to a present value to estimate the fair value of the interest rate swaps. The Company also obtains and compares the reasonableness of the pricing from an independent third party.

Note 20. Fair Value of Assets and Liabilities (continued)

The following tables disclose the fair value measurement of assets and liabilities measured at fair value on a recurring basis:

			Fair Value Measurements At the End of the Reporting Period Using
(Dollars in thousands)	Fair Value December 31, 2015		Quoted Prices in Active  Markets for Identical Assets (Level 1)	Significant Other Observable Inputs (Level 2)	Significant Unobservable Inputs (Level 3)
Investment securities, available-for-sale
U.S. government and federal agency	$	47,451	—	47,451	—
U.S. government sponsored enterprises	93,167		—	93,167	—
State and local governments	885,019		—	885,019	—
Corporate bonds	384,163		—	384,163	—
Residential mortgage-backed securities	1,200,960		—	1,200,960	—
Total assets measured at fair value on a recurring basis	$	2,610,760	—	2,610,760	—
Interest rate swaps	$	19,499	—	19,499	—
Total liabilities measured at fair value on a recurring basis	$	19,499	—	19,499	—

			Fair Value Measurements At the End of the Reporting Period Using
(Dollars in thousands)	Fair Value December 31, 2014		Quoted Prices in Active  Markets for Identical Assets (Level 1)	Significant Other Observable Inputs (Level 2)	Significant Unobservable Inputs (Level 3)
Investment securities, available-for-sale
U.S. government and federal agency	$	44	—	44	—
U.S. government sponsored enterprises	21,945		—	21,945	—
State and local governments	997,969		—	997,969	—
Corporate bonds	314,854		—	314,854	—
Residential mortgage-backed securities	1,052,616		—	1,052,616	—
Total assets measured at fair value on a recurring basis	$	2,387,428	—	2,387,428	—
Interest rate swaps	$	16,668	—	16,668	—
Total liabilities measured at fair value on a recurring basis	$	16,668	—	16,668	—

Non-recurring Measurements

The following is a description of the inputs and valuation methodologies used for assets recorded at fair value on a non-recurring basis, as well as the general classification of such assets pursuant to the valuation hierarchy. There have been no significant changes in the valuation techniques during the period ended December 31, 2015.

Other real estate owned: OREO is carried at the lower of fair value at acquisition date or current estimated fair value, less estimated cost to sell. Estimated fair value of OREO is based on appraisals or evaluations (new or updated). OREO is classified within Level 3 of the fair value hierarchy.

Note 20. Fair Value of Assets and Liabilities (continued)

Collateral-dependent impaired loans, net of ALLL: loans included in the Company’s loan portfolio for which it is probable that the Company will not collect all principal and interest due according to contractual terms are considered impaired. Estimated fair value of collateral-dependent impaired loans is based on the fair value of the collateral, less estimated cost to sell. Collateral-dependent impaired loans are classified within Level 3 of the fair value hierarchy.

The Company’s credit departments review appraisals for OREO and collateral-dependent loans, giving consideration to the highest and best use of the collateral. The appraisal or evaluation (new or updated) is considered the starting point for determining fair value. The valuation techniques used in preparing appraisals or evaluations (new or updated) include the cost approach, income approach, sales comparison approach, or a combination of the preceding valuation techniques. The key inputs used to determine the fair value of the collateral-dependent loans and OREO include selling costs, discounted cash flow rate or capitalization rate, and adjustment to comparables. Valuations and significant inputs obtained by independent sources are reviewed by the Company for accuracy and reasonableness. The Company also considers other factors and events in the environment that may affect the fair value. The appraisals or evaluations (new or updated) are reviewed at least quarterly and more frequently based on current market conditions, including deterioration in a borrower’s financial condition and when property values may be subject to significant volatility. After review and acceptance of the collateral appraisal or evaluation (new or updated), adjustments to the impaired loan or OREO may occur. The Company generally obtains appraisals or evaluations (new or updated) annually.

The following tables disclose the fair value measurement of assets with a recorded change during the period resulting from re-measuring the assets at fair value on a non-recurring basis:

			Fair Value Measurements At the End of the Reporting Period Using
(Dollars in thousands)	Fair Value December 31, 2015		Quoted Prices in Active  Markets for Identical Assets (Level 1)	Significant Other Observable Inputs (Level 2)	Significant Unobservable Inputs (Level 3)
Other real estate owned	$	7,609	—	—	7,609
Collateral-dependent impaired loans, net of ALLL	12,938		—	—	12,938
Total assets measured at fair value on a non-recurring basis	$	20,547	—	—	20,547

			Fair Value Measurements At the End of the Reporting Period Using
(Dollars in thousands)	Fair Value December 31, 2014		Quoted Prices in Active  Markets for Identical Assets (Level 1)	Significant Other Observable Inputs (Level 2)	Significant Unobservable Inputs (Level 3)
Other real estate owned	$	3,000	—	—	3,000
Collateral-dependent impaired loans, net of ALLL	15,480		—	—	15,480
Total assets measured at fair value on a non-recurring basis	$	18,480	—	—	18,480

Note 20. Fair Value of Assets and Liabilities (continued)

Non-recurring Measurements Using Significant Unobservable Inputs (Level 3)

The following tables present additional quantitative information about assets measured at fair value on a non-recurring basis and for which the Company has utilized Level 3 inputs to determine fair value:

	Fair Value		Quantitative Information about Level 3 Fair Value Measurements
(Dollars in thousands)	December 31, 2015		Valuation Technique	Unobservable Input	Range (Weighted- Average) 1
Other real estate owned	$	4,067	Sales comparison approach	Selling costs	7.0% - 10.0% (7.9%)
	3,542		Combined approach	Selling costs	8.0% - 8.0% (8.0%)
	$	7,609
Collateral-dependent impaired loans, net of ALLL	$	162	Cost approach	Selling costs	0.0% - 20.0% (6.1%)
	9,465		Sales comparison approach	Selling costs	8.0% - 20.0% (8.9%)
				Adjustment to comparables	0.0% - 5.0% (0.0%)
	3,311		Combined approach	Selling costs	10.0% - 10.0% (10.0%)
				Adjustment to comparables	20.0% - 20.0% (20.0%)
	$	12,938

	Fair Value		Quantitative Information about Level 3 Fair Value Measurements
(Dollars in thousands)	December 31, 2014		Valuation Technique	Unobservable Input	Range (Weighted- Average) 1
Other real estate owned	$	2,393	Sales comparison approach	Selling costs	0.0% - 10.0% (5.8%)
				Adjustment to comparables	0.0% - 7.0% (0.5%)
	607		Combined approach	Selling costs	10.0% - 10.0% (10.0%)
				Discount rate	10.0% - 10.0% (10.0%)
	$	3,000
Collateral-dependent impaired loans, net of ALLL	$	6	Cost approach	Selling costs	7.0% - 7.0% (7.0%)
	5,335		Income approach	Selling costs	8.0% - 10.0% (8.5%)
				Discount rate	8.3% - 12.0% (9.1%)
	6,330		Sales comparison approach	Selling costs	0.0% - 10.0% (8.3%)
				Adjustment to comparables	0.0% - 30.0% (3.5%)
	3,809		Combined approach	Selling costs	8.0% - 10.0% (9.2%)
				Adjustment to comparables	10.0% - 20.0% (16.2%)
	$	15,480

__________

¹ The range for selling costs and adjustments to comparables indicate reductions to the fair value.

Note 20. Fair Value of Assets and Liabilities (continued)

Fair Value of Financial Instruments

The following is a description of the methods used to estimate the fair value of all other assets and liabilities recognized at amounts other than fair value.

Cash and cash equivalents: fair value is estimated at book value.

Investment securities, held-to-maturity: fair value for held-to-maturity securities is estimated in the same manner as available-for-sale securities, which is described above.

Loans held for sale: fair value is estimated at book value.

Loans receivable, net of ALLL: fair value is estimated by discounting the future cash flows using the rates at which similar notes would be written for the same remaining maturities. The market rates used are based on current rates the Company would impose for similar loans and reflect a market participant assumption about risks associated with non-performance, illiquidity, and the structure and term of the loans along with local economic and market conditions. Estimated fair value of impaired loans is based on the fair value of the collateral, less estimated cost to sell, or the present value of the loan’s expected future cash flows (discounted at the loan’s effective interest rate). All impaired loans are classified as Level 3 and all other loans are classified as Level 2 within the valuation hierarchy.

Accrued interest receivable: fair value is estimated at book value.

Non-marketable equity securities: fair value is estimated at book value due to restrictions that limit the sale or transfer of such securities.

Deposits: fair value of term deposits is estimated by discounting the future cash flows using rates of similar deposits with similar maturities. The market rates used were obtained from an independent third party and reviewed by the Company. The rates were the average of current rates offered by the Company’s local competitors. The estimated fair value of demand, NOW, savings, and money market deposits is the book value since rates are regularly adjusted to market rates and transactions are executed at book value daily. Therefore, such deposits are classified in Level 1 of the valuation hierarchy. Certificate accounts and wholesale deposits are classified as Level 2 within the hierarchy.

Federal Home Loan Bank advances: fair value of non-callable FHLB advances is estimated by discounting the future cash flows using rates of similar advances with similar maturities. Such rates were obtained from current rates offered by FHLB. The estimated fair value of callable FHLB advances was obtained from FHLB and the model was reviewed by the Company.

Securities sold under agreements to repurchase and other borrowed funds: fair value of term repurchase agreements and other term borrowings is estimated based on current repurchase rates and borrowing rates currently available to the Company for repurchases and borrowings with similar terms and maturities. The estimated fair value for overnight repurchase agreements and other borrowings is book value.

Subordinated debentures: fair value of the subordinated debt is estimated by discounting the estimated future cash flows using current estimated market rates. The market rates used were averages of currently traded trust preferred securities with similar characteristics to the Company’s issuances and obtained from an independent third party.

Accrued interest payable: fair value is estimated at book value.

Off-balance sheet financial instruments: commitments to extend credit and letters of credit represent the principal categories of off-balance sheet financial instruments. Rates for these commitments are set at time of loan closing, such that no adjustment is necessary to reflect these commitments at market value. The Company has an insignificant amount of off-balance sheet financial instruments.

Note 20. Fair Value of Assets and Liabilities (continued)

The following tables present the carrying amounts, estimated fair values and the level within the fair value hierarchy of the Company’s financial instruments:

			Fair Value Measurements At the End of the Reporting Period Using
(Dollars in thousands)	Carrying Amount December 31, 2015		Quoted Prices in Active Markets for Identical Assets (Level 1)	Significant Other Observable Inputs (Level 2)	Significant Unobservable Inputs (Level 3)
Financial assets
Cash and cash equivalents	$	193,253	193,253	—	—
Investment securities, available-for-sale	2,610,760		—	2,610,760	—
Investment securities, held-to-maturity	702,072		—	729,513	—
Loans held for sale	56,514		56,514	—	—
Loans receivable, net of ALLL	4,948,984		—	4,851,934	132,649
Accrued interest receivable	44,524		44,524	—	—
Non-marketable equity securities	27,495		—	27,495	—
Total financial assets	$	8,583,602	294,291	8,219,702	132,649
Financial liabilities
Deposits	$	6,945,008	5,654,638	1,293,506	—
FHLB advances	394,131		—	401,530	—
Repurchase agreements and other borrowed funds	430,016		—	430,016	—
Subordinated debentures	125,848		—	81,840	—
Accrued interest payable	3,517		3,517	—	—
Interest rate swaps	19,499		—	19,499	—
Total financial liabilities	$	7,918,019	5,658,155	2,226,391	—

			Fair Value Measurements At the End of the Reporting Period Using
(Dollars in thousands)	Carrying Amount December 31, 2014		Quoted Prices in Active  Markets for Identical Assets (Level 1)	Significant Other Observable Inputs (Level 2)	Significant Unobservable Inputs (Level 3)
Financial assets
Cash and cash equivalents	$	442,409	442,409	—	—
Investment securities, available-for-sale	2,387,428		—	2,387,428	—
Investment securities, held-to-maturity	520,997		—	550,946	—
Loans held for sale	46,726		46,726	—	—
Loans receivable, net of ALLL	4,358,342		—	4,288,417	149,769
Accrued interest receivable	40,587		40,587	—	—
Non-marketable equity securities	52,868		—	52,868	—
Total financial assets	$	7,849,357	529,722	7,279,659	149,769
Financial liabilities
Deposits	$	6,345,212	4,928,771	1,421,234	—
FHLB advances	296,944		—	312,363	—
Repurchase agreements and other borrowed funds	404,418		—	404,418	—
Subordinated debentures	125,705		—	76,711	—
Accrued interest payable	4,155		4,155	—	—
Interest rate swaps	16,668		—	16,668	—
Total financial liabilities	$	7,193,102	4,932,926	2,231,394	—

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Contingencies and Commitments

12 Months Ended

Dec. 31, 2015

Commitments and Contingencies Disclosure [Abstract]

Contingencies and Commitments

Contingencies and Commitments

The Company is a party to financial instruments with off-balance sheet risk in the normal course of business to meet the financing needs of its customers. These financial instruments include commitments to extend credit and letters of credit, and involve, to varying degrees, elements of credit risk. The Company’s exposure to credit loss in the event of nonperformance by the other party to the financial instrument for commitments to extend credit is represented by the contractual amount of those instruments. The Company uses the same credit policies in making commitments and conditional obligations as it does for on-balance sheet instruments.

The Company had the following outstanding commitments:

(Dollars in thousands)	December 31, 2015		December 31, 2014
Commitments to extend credit	$	1,240,923	960,180
Letters of credit	22,415		16,531
Total outstanding commitments	$	1,263,338	976,711

The Company is a defendant in legal proceedings arising in the normal course of business. In the opinion of management, the disposition of pending litigation will not have a material affect on the Company’s consolidated financial position, results of operations or liquidity.

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Mergers and Acquisitions

12 Months Ended

Dec. 31, 2015

Business Combinations [Abstract]

Mergers and Acquisitions

Mergers and Acquisitions

On October 31, 2015, the Company acquired 100 percent of the outstanding common stock of Cañon Bank Corporation and its wholly-owned subsidiary, Cañon National Bank, a community bank based in Cañon City, Colorado. Cañon provides banking services to individuals and businesses in south central Colorado, with banking offices located in Colorado Springs, Pueblo, Pueblo West, Cañon City, Colorado City, and Florence, Colorado. The acquisition expands the Company’s market into south central Colorado and further diversifies the Company’s loan, customer and deposit base. The branches of Cañon have become a part of the Bank of the San Juans bank division. The Cañon acquisition was valued at $31,308,000 and resulted in the Company issuing 554,206 shares of its common stock and $16,145,000 in cash in exchange for all of Cañon’s outstanding common stock shares. The fair value of the Company shares issued was determined on the basis of the closing market price of the Company’s common stock on the October 31, 2015 acquisition date. The excess of the fair value of consideration transferred over total identifiable net assets was recorded as goodwill. The goodwill arising from the acquisition consists largely of the synergies and economies of scale expected from combining the operations of the Company and Cañon. None of the goodwill is deductible for income tax purposes as the acquisition was accounted for as a tax-free exchange.

On February 28, 2015, the Company acquired 100 percent of the outstanding common stock of Montana Community Banks, Inc. and its wholly-owned subsidiary, Community Bank, Inc., a community bank based in Ronan, Montana. CB provides banking services to individuals and businesses in western Montana, with banking offices located in Missoula, Polson, Ronan and Pablo, Montana. The acquisition allowed the Company to add new markets in western Montana and complimented the Company’s presence in Missoula and Polson, Montana. The branches of CB have become a part of the Glacier Bank and First Security Bank of Missoula bank divisions. The CB acquisition was valued at $22,995,000 and resulted in the Company issuing 443,644 shares of its common stock and $12,219,000 in cash in exchange for all of CB’s outstanding common stock shares. The fair value of the Company shares issued was determined on the basis of the closing market price of the Company’s common stock on the February 28, 2015 acquisition date. The excess of the fair value of consideration transferred over total identifiable net assets was recorded as goodwill. The goodwill arising from the acquisition consists largely of the synergies and economies of scale expected from combining the operations of the Company and CB. None of the goodwill is deductible for income tax purposes as the acquisition was accounted for as a tax-free exchange.

Note 22. Mergers and Acquisitions (continued)

On August 31, 2014, the Company acquired 100 percent of the outstanding common stock of FNBR, a privately-owned company, and its wholly-owned subsidiary, First National Bank of the Rockies, a community bank based in Grand Junction, Colorado. First National Bank of the Rockies provides community banking services to individuals and businesses in northwestern Colorado, with banking offices located in Grand Junction, Steamboat Springs, Meeker, Rangely, Craig, Hayden and Oak Creek. As a result of the acquisition, the Company further diversified its loan and deposit customer base with its increased presence in the state of Colorado. The branches of FNBR were merged into Glacier Bank and became a part of the Bank of the San Juans division. The consideration paid by the Company to acquire FNBR was $31,817,000, which resulted in the Company issuing 555,732 shares of its common stock and $16,690,000 in cash in exchange for all of FNBR’s outstanding common stock. The fair value of the Company’s common stock shares issued was determined on the basis of the closing market price of the Company’s common stock shares on the August 31, 2014 acquisition date. The Company recorded a $680,000 bargain purchase gain due to the fair value of FNBR’s identifiable net assets exceeding the consideration transferred. The bargain purchase gain is included in other income in the Company’s consolidated statements of operations. Before recognizing the bargain purchase gain, the Company reassessed whether it correctly identified and valued each of the assets acquired and liabilities assumed. The objective of the reassessment process was to ensure that the measurements reflected consideration of all available information as of the acquisition date. The reassessment process included reviewing FNBR’s statement of financial condition to verify that all assets and liabilities had been identified and then re-evaluating and challenging again the procedures and the reasonableness of the significant assumptions utilized in determining the fair value of the identifiable assets and liabilities with respect to the acquisition date. The Company obtained fair value estimates from independent third party specialists for the significant identifiable assets and liabilities, including loans, investment securities and deposits. Following the reassessment process, the Company concluded that the consideration transferred and all of the assets acquired and liabilities assumed had been properly identified and valued.

The assets and liabilities of Cañon, CB and FNBR were recorded on the Company’s consolidated statements of financial condition at their estimated fair values as of the October 31, 2015, February 28, 2015 and August 31, 2014 acquisition dates, respectively, and their results of operations have been included in the Company’s consolidated statements of operations since those dates. The following table discloses the calculation of the fair value of the consideration transferred, the total identifiable net assets acquired and the resulting goodwill or bargain purchase gain arising from the Cañon, CB and FNBR acquisitions:

	Cañon		CB	FNBR
(Dollars in thousands)	October 31, 2015		February 28, 2015	August 31, 2014
Fair value of consideration transferred
Fair value of Company shares issued, net of equity issuance costs	$	15,163	10,776	15,127
Cash consideration for outstanding shares	16,145		12,219	16,690
Contingent consideration	—		—	—
Total fair value of consideration transferred	31,308		22,995	31,817
Recognized amounts of identifiable assets acquired and liabilities assumed
Identifiable assets acquired
Cash and cash equivalents	17,860		31,931	14,578
Investment securities	68,486		42,350	157,018
Loans receivable	159,759		84,689	137,488
Core deposit intangible	4,532		2,087	4,199
Accrued income and other assets	9,689		13,580	35,884
Total identifiable assets acquired	260,326		174,637	349,167
Liabilities assumed
Deposits	237,326		146,820	309,641
FHLB advances and repurchase agreements	—		3,292	—
Accrued expenses and other liabilities	1,487		2,667	7,029
Total liabilities assumed	238,813		152,779	316,670
Total identifiable net assets	21,513		21,858	32,497
Goodwill (bargain purchase gain) recognized	$	9,795	1,137	(680	)

Note 22. Mergers and Acquisitions (continued)

The fair value of the Cañon, CB and FNBR assets acquired includes loans with fair values of $159,759,000 and $84,689,000 and $137,488,000, respectively. The gross principal and contractual interest due under the Cañon, CB and FNBR contracts is $164,568,000, $88,817,000 and $146,019,000, respectively, all of which is expected to be collectible.

Core deposit intangible assets related to the Cañon, CB and FNBR acquisitions totaled $4,532,000, $2,087,000 and $4,199,000, respectively, all with estimated lives of 10 years.

The Company incurred $707,000 and $1,605,000, respectively, of Cañon and CB third-party acquisition-related costs during the year ended December 31, 2015. The Company incurred $552,000 of FNBR third-party acquisition-related costs during the year ended December 31, 2014. The expenses are included in other expense in the Company's consolidated statements of operations.

Total income consisting of net interest income and non-interest income of the acquired operations of Cañon was approximately $2,606,000 and net income was approximately $563,000 from October 31, 2015 to December 31, 2015. Total income consisting of net interest income and non-interest income of the acquired operations of CB was approximately $7,492,000 and net income was approximately $1,808,000 from February 28, 2015 to December 31, 2015. Total income consisting of net interest income and non-interest income of the acquired operations of FNBR was approximately $6,672,000 and net income was approximately $1,675,000 from August 31, 2014 to December 31, 2014.

The following unaudited pro forma summary presents consolidated information of the Company as if the Cañon and CB acquisitions had occurred on January 1, 2014:

	Years ended
(Dollars in thousands)	December 31, 2015		December 31, 2014
Net interest income and non-interest income	$	401,140	383,387
Net income	115,613		115,899

The following unaudited pro forma summary presents consolidated information of the Company as if the FNBR acquisition had occurred on January 1, 2013:

	Years ended
(Dollars in thousands)	December 31, 2014		December 31, 2013
Net interest income and non-interest income	$	371,772	340,393
Net income	113,364		99,275

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Nature of Operations and Summary of Significant Accounting Policies (Policies)

12 Months Ended

Dec. 31, 2015

Organization, Consolidation and Presentation of Financial Statements [Abstract]

General

General

Glacier Bancorp, Inc. (“Company”) is a Montana corporation headquartered in Kalispell, Montana. The Company provides a full range of banking services to individuals and businesses in Montana, Idaho, Wyoming, Colorado, Utah and Washington through its wholly-owned bank subsidiary, Glacier Bank (“Bank”). The Company offers a wide range of banking products and services, including transaction and savings deposits, real estate, commercial, agriculture and consumer loans and mortgage origination services. The Company serves individuals, small to medium-sized businesses, community organizations and public entities.

The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America (“GAAP”) requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of income and expenses during the reporting period. Actual results could differ from those estimates.

Material estimates that are particularly susceptible to significant change include: 1) the determination of the allowance for loan and lease losses (“ALLL” or “allowance”); 2) the valuation of investment securities; 3) the valuation of real estate acquired in connection with foreclosures or in satisfaction of loans; and 4) the evaluation of goodwill impairment. For the determination of the ALLL and real estate valuation estimates, management obtains independent appraisals (new or updated) for significant items. Estimates relating to investment valuations are obtained from independent third parties. Estimates relating to the evaluation of goodwill for impairment are determined based on internal calculations using significant independent party inputs.

Principles of Consolidation

Principles of Consolidation

The consolidated financial statements of the Company include the parent holding company, the Bank and all variable interest entities (“VIE”) for which the Company has both the power to direct the VIE’s significant activities and the obligation to absorb a majority of the expected losses and/or receive a majority of the expected residual returns. The Bank consists of thirteen bank divisions, a treasury division and an information technology division. The treasury division includes the Bank’s investment portfolio and wholesale borrowings and the information technology division includes the Bank’s internal data processing and information technology expenses. The Bank divisions operate under separate names, management teams and directors. The Company considers the Bank to be its sole operating segment as the Bank 1) engages in similar bank business activity from which it earns revenues and incurs expenses; 2) the operating results of the Bank are regularly reviewed by the Chief Executive Officer (i.e., the chief operating decision maker) who makes decisions about resources to be allocated to the Bank; and 3) financial information is available for the Bank. All significant inter-company transactions have been eliminated in consolidation.

In October 2015, the Company completed its acquisition of Cañon Bank Corporation and its wholly-owned subsidiary, Cañon National Bank, a community bank based in Cañon City, Colorado (collectively, “Cañon”). In February 2015, the Company completed its acquisition of Montana Community Banks, Inc. and its wholly-owned subsidiary, Community Bank, Inc., a community bank based in Ronan, Montana (collectively, “CB”). In August 2014, the Company completed its acquisition of FNBR Holding Corporation and its wholly-owned subsidiary, First National Bank of the Rockies, a community bank based in Grand Junction, Colorado (collectively, “FNBR”). In July 2013, the Company completed its acquisition of North Cascades Bancshares, Inc. and its wholly-owned subsidiary, North Cascades National Bank, a community bank based in Chelan, Washington. In May 2013, the Company acquired Wheatland Bankshares, Inc. and its wholly-owned subsidiary, First State Bank, a community bank based in Wheatland, Wyoming. The transactions were accounted for using the acquisition method, and their results of operations have been included in the Company’s consolidated financial statements as of the acquisition dates.

Cash and Cash Equivalents

Cash and Cash Equivalents

Cash and cash equivalents include cash on hand, cash held as demand deposits at various banks and the Federal Reserve Bank (“FRB”), interest bearing deposits, federal funds sold, and liquid investments with original maturities of three months or less. The Bank is required to maintain an average reserve balance with either the FRB or in the form of cash on hand. The required reserve balance at December 31, 2015 was $34,309,000.

Investment Securities

Investment Securities

Debt securities for which the Company has the positive intent and ability to hold to maturity are classified as held-to-maturity and are carried at amortized cost. Debt and equity securities held primarily for the purpose of selling in the near term are classified as trading securities and are reported at fair market value, with unrealized gains and losses included in income. Debt and equity securities not classified as held-to-maturity or trading are classified as available-for-sale and are reported at fair value with unrealized gains and losses, net of income taxes, as a separate component of other comprehensive income. Premiums and discounts on investment securities are amortized or accreted into income using a method that approximates the interest method. The objective of the interest method is to calculate periodic interest income at a constant effective yield. The Company does not have any investment securities classified as trading securities.

The Company reviews and analyzes the various risks that may be present within the investment portfolio on an ongoing basis, including market risk and credit risk. Market risk is the risk to an entity’s financial condition resulting from adverse changes in the value of its holdings arising from movements in interest rates, foreign exchange rates, equity prices or commodity prices. The Company assesses the market risk of individual securities as well as the investment portfolio as a whole. Credit risk, broadly defined, is the risk that an issuer or counterparty will fail to perform on an obligation. A security is investment grade if the issuer has an adequate capacity to meet its commitment over the expected life of the investment, i.e., the risk of default is low and full and timely repayment of interest and principal is expected. To determine investment grade status for securities, the Company conducts due diligence of the creditworthiness of the issuer or counterparty prior to acquisition and ongoing thereafter consistent with the risk characteristics of the security and the overall risk of the investment portfolio. Credit quality due diligence takes into account the extent to which a security is guaranteed by the U.S. government and other agencies of the U.S. government. The depth of the due diligence is based on the complexity of the structure, the size of the security, and takes into account material positions and specific groups of securities or stratifications for analysis and review of similar risk positions. The due diligence includes consideration of payment performance, collateral adequacy, internal analyses, third party research and analytics, external credit ratings and default statistics.

For additional information relating to investment securities, see Note 2.

Temporary versus Other-Than-Temporary Impairment

Temporary versus Other-Than-Temporary Impairment

The Company assesses individual securities in its investment portfolio for impairment at least on a quarterly basis, and more frequently when economic or market conditions warrant. An investment is impaired if the fair value of the security is less than its carrying value at the financial statement date. If impairment is determined to be other-than-temporary, an impairment loss is recognized by reducing the amortized cost for the credit loss portion of the impairment with a corresponding charge to earnings for a like amount.

In evaluating impaired securities for other-than-temporary impairment losses, management considers 1) the severity and duration of the impairment; 2) the credit ratings of the security; and 3) the overall deal structure, including the Company’s position within the structure, the overall and near term financial performance of the issuer and underlying collateral, delinquencies, defaults, loss severities, recoveries, prepayments, cumulative loss projections, discounted cash flows and fair value estimates.

In evaluating debt securities for other-than-temporary impairment losses, management assesses whether the Company intends to sell the security or if it is more-likely-than-not that the Company will be required to sell the debt security. In so doing, management considers contractual constraints, liquidity, capital, asset/liability management and securities portfolio objectives. If impairment is determined to be other-than-temporary and the Company does not intend to sell a debt security, and it is more-likely-than-not the Company will not be required to sell the security before recovery of its cost basis, it recognizes the credit component of an other-than-temporary impairment of a debt security in earnings and the remaining portion (noncredit portion) in other comprehensive income, net of tax. For held-to-maturity debt securities, the amount of an other-than-temporary impairment recorded in other comprehensive income for the noncredit portion of a previous other-than-temporary impairment is amortized prospectively, as an increase to the carrying amount of the security, over the remaining life of the security on the basis of the timing of future estimated cash flows of the security.

Loans Held for Sale

Loans Held for Sale

Loans held for sale generally consist of long-term, fixed rate, conforming, single-family residential real estate loans and are carried at the lower of cost or estimated fair value in the aggregate. Net unrealized losses, if any, are recognized by charges to non-interest income. A sale is recognized when the Company surrenders control of the loan and consideration, is received in exchange. A gain is recognized in non-interest income to the extent the sales price exceeds the carrying value of the sold loan.

Loans Receivable

Loans Receivable

Loans that are intended to be held-to-maturity are reported at the unpaid principal balance less net charge-offs and adjusted for deferred fees and costs on originated loans and unamortized premiums or discounts on acquired loans. Fees and costs on originated loans and premiums or discounts on acquired loans are deferred and subsequently amortized or accreted as a yield adjustment over the expected life of the loan utilizing the interest method. The objective of the interest method is to calculate periodic interest income at a constant effective yield. Anticipated prepayments are not included when applying the interest method. When a loan is paid off prior to maturity, the remaining fees and costs on originated loans and premiums or discounts on acquired loans are immediately recognized into interest income.

The Company’s loan segments, which are based on the purpose of the loan, include residential real estate, commercial, and consumer loans. The Company’s loan classes, a further disaggregation of segments, include residential real estate loans (residential real estate segment), commercial real estate and other commercial loans (commercial segment), and home equity and other consumer loans (consumer segment).

Loans that are thirty days or more past due based on payments received and applied to the loan are considered delinquent. Loans are designated non-accrual and the accrual of interest is discontinued when the collection of the contractual principal or interest is unlikely. A loan is typically placed on non-accrual when principal or interest is due and has remained unpaid for ninety days or more. When a loan is placed on non-accrual status, interest previously accrued but not collected is reversed against current period interest income. Subsequent payments on non-accrual loans are applied to the outstanding principal balance if doubt remains as to the ultimate collectability of the loan. Interest accruals are not resumed on partially charged-off impaired loans. For other loans on nonaccrual, interest accruals are resumed on such loans only when they are brought fully current with respect to interest and principal and when, in the judgment of management, the loans are estimated to be fully collectible as to both principal and interest.

The Company considers impaired loans to be the primary credit quality indicator for monitoring the credit quality of the loan portfolio. Loans are designated impaired when, based upon current information and events, it is probable that the Company will be unable to collect the scheduled payments of principal or interest when due according to the contractual terms of the loan agreement and, therefore, the Company has serious doubts as to the ability of such borrowers to fulfill the contractual obligation. Impaired loans include non-performing loans (i.e., non-accrual loans and accruing loans ninety days or more past due) and accruing loans under ninety days past due where it is probable payments will not be received according to the loan agreement (e.g., troubled debt restructuring). Interest income on accruing impaired loans is recognized using the interest method. The Company measures impairment on a loan-by-loan basis in the same manner for each class within the loan portfolio. An insignificant delay or shortfall in the amounts of payments would not cause a loan or lease to be considered impaired. The Company determines the significance of payment delays and shortfalls on a case-by-case basis, taking into consideration all of the facts and circumstances surrounding the loan and the borrower, including the length and reasons for the delay, the borrower’s prior payment record, and the amount of the shortfall in relation to the principal and interest due.

Note 1. Nature of Operations and Summary of Significant Accounting Policies (continued)

A restructured loan is considered a troubled debt restructuring (“TDR”) if the creditor, for economic or legal reasons related to the debtor’s financial difficulties, grants a concession to the debtor that it would not otherwise consider. The Company periodically enters into restructure agreements with borrowers whereby the loans were previously identified as TDRs. When such circumstances occur, the Company carefully evaluates the facts of the subsequent restructure to determine the appropriate accounting and under certain circumstances it may be acceptable not to account for the subsequently restructured loan as a TDR. When assessing whether a concession has been granted by the Company, any prior forgiveness on a cumulative basis is considered a continuing concession. A TDR loan is considered an impaired loan and a specific valuation allowance is established when the fair value of the collateral-dependent loan or present value of the loan’s expected future cash flows (discounted at the loan’s effective interest rate based on the original contractual rate) is lower than the carrying value of the impaired loan. The Company has made the following types of loan modifications, some of which were considered a TDR:

• reduction of the stated interest rate for the remaining term of the debt;

• extension of the maturity date(s) at a stated rate of interest lower than the current market rate for newly originated debt having similar risk characteristics; and

• reduction of the face amount of the debt as stated in the debt agreements.

The Company recognizes that while borrowers may experience deterioration in their financial condition, many continue to be creditworthy customers who have the willingness and capacity for debt repayment. In determining whether non-restructured or unimpaired loans issued to a single or related party group of borrowers should continue to accrue interest when the borrower has other loans that are impaired or are TDRs, the Company on a quarterly or more frequent basis performs an updated and comprehensive assessment of the willingness and capacity of the borrowers to timely and ultimately repay their total debt obligations, including contingent obligations. Such analysis takes into account current financial information about the borrowers and financially responsible guarantors, if any, including for example:

• analysis of global, i.e., aggregate debt service for total debt obligations;

• assessment of the value and security protection of collateral pledged using current market conditions and alternative market assumptions across a variety of potential future situations; and

• loan structures and related covenants.

For additional information relating to loans, see Note 3.

Allowance for Loan and Lease Losses

Allowance for Loan and Lease Losses

Based upon management’s analysis of the Company’s loan portfolio, the balance of the ALLL is an estimate of probable credit losses known and inherent within the Bank’s loan portfolio as of the date of the consolidated financial statements. The ALLL is analyzed at the loan class level and is maintained within a range of estimated losses. Determining the adequacy of the ALLL involves a high degree of judgment and is inevitably imprecise as the risk of loss is difficult to quantify. The determination of the ALLL and the related provision for loan losses is a critical accounting estimate that involves management’s judgments about all known relevant internal and external environmental factors that affect loan losses. The balance of the ALLL is highly dependent upon management’s evaluations of borrowers’ current and prospective performance, appraisals and other variables affecting the quality of the loan portfolio. Individually significant loans and major lending areas are reviewed periodically to determine potential problems at an early date. Changes in management’s estimates and assumptions are reasonably possible and may have a material impact upon the Company’s consolidated financial statements, results of operations or capital.

Risk characteristics considered in the ALLL analysis applicable to each loan class within the Company's loan portfolio are as follows:

Residential Real Estate.  Residential real estate loans are secured by owner-occupied 1-4 family residences.  Repayment of these loans is primarily dependent on the personal income and credit rating of the borrowers.  Credit risk in these loans is impacted by economic conditions within the Company’s market areas that affect the value of the property securing the loans and affect the borrowers' personal incomes.  Mitigating risk factors for this loan class include a large number of borrowers, geographic dispersion of market areas and the loans are originated for relatively smaller amounts.

Commercial Real Estate.  Commercial real estate loans typically involve larger principal amounts, and repayment of these loans is generally dependent on the successful operation of the property securing the loan and/or the business conducted on the property securing the loan.  Credit risk in these loans is impacted by the creditworthiness of a borrower, valuation of the property securing the loan and conditions within the local economies in the Company’s diverse, geographic market areas.

Note 1. Nature of Operations and Summary of Significant Accounting Policies (continued)

Commercial.  Commercial loans consist of loans to commercial customers for use in financing working capital needs, equipment purchases and business expansions.  The loans in this category are repaid primarily from the cash flow of a borrower’s principal business operation.  Credit risk in these loans is driven by creditworthiness of a borrower and the economic conditions that impact the cash flow stability from business operations across the Company’s diverse, geographic market areas.

Home Equity.  Home equity loans consist of junior lien mortgages and first and junior lien lines of credit (revolving open-end and amortizing closed-end) secured by owner-occupied 1-4 family residences.  Repayment of these loans is primarily dependent on the personal income and credit rating of the borrowers.  Credit risk in these loans is impacted by economic conditions within the Company’s market areas that affect the value of the residential property securing the loans and affect the borrowers' personal incomes.  Mitigating risk factors for this loan class are a large number of borrowers, geographic dispersion of market areas and the loans are originated for terms that range from 10 years to 15 years.

Other Consumer.  The other consumer loan portfolio consists of various short-term loans such as automobile loans and loans for other personal purposes.  Repayment of these loans is primarily dependent on the personal income of the borrowers.  Credit risk is driven by consumer economic factors (such as unemployment and general economic conditions in the Company’s diverse, geographic market area) and the creditworthiness of a borrower.

The ALLL consists of a specific valuation allowance component and a general valuation allowance component. The specific component relates to loans that are determined to be impaired and individually evaluated for impairment. The Company measures impairment on a loan-by-loan basis based on the present value of expected future cash flows discounted at the loan’s effective interest rate, except when it is determined that repayment of the loan is expected to be provided solely by the underlying collateral. For impairment based on expected future cash flows, the Company considers all information available as of a measurement date, including past events, current conditions, potential prepayments, and estimated cost to sell when such costs are expected to reduce the cash flows available to repay or otherwise satisfy the loan. For alternative ranges of cash flows, the likelihood of the possible outcomes is considered in determining the best estimate of expected future cash flows. The effective interest rate for a loan restructured in a TDR is based on the original contractual rate. For collateral-dependent loans and real estate loans for which foreclosure or a deed-in-lieu of foreclosure is probable, impairment is measured by the fair value of the collateral, less estimated cost to sell. The fair value of the collateral is determined primarily based upon appraisal or evaluation of the underlying real property value.

The general valuation allowance component relates to probable credit losses inherent in the balance of the loan portfolio based on historical loss experience, adjusted for changes in trends and conditions of qualitative or environmental factors. The historical loss experience is based on the previous twelve quarters loss experience by loan class adjusted for risk characteristics in the existing loan portfolio. The same trends and conditions are evaluated for each class within the loan portfolio; however, the risk characteristics are weighted separately at the individual class level based on the Company’s judgment and experience.

The changes in trends and conditions evaluated for each class within the loan portfolio include the following:

• changes in lending policies and procedures, including changes in underwriting standards and collection, charge-off, and recovery practices not considered elsewhere in estimating credit losses;

• changes in global, national, regional, and local economic and business conditions and developments that affect the collectability of the portfolio, including the condition of various market segments;

• changes in the nature and volume of the portfolio and in the terms of loans;

• changes in experience, ability, and depth of lending management and other relevant staff;

• changes in the volume and severity of past due and nonaccrual loans;

• changes in the quality of the Company’s loan review system;

• changes in the value of underlying collateral for collateral-dependent loans;

• the existence and effect of any concentrations of credit, and changes in the level of such concentrations; and

• the effect of other external factors such as competition and legal and regulatory requirements on the level of estimated credit losses in the Company’s existing portfolio.

The ALLL is increased by provisions for loan losses which are charged to expense. The portions of loan balances determined by management to be uncollectible are charged off as a reduction of the ALLL and recoveries of amounts previously charged off are credited as an increase to the ALLL. The Company’s charge-off policy is consistent with bank regulatory standards. Consumer loans generally are charged off when the loan becomes over 120 days delinquent. Real estate acquired as a result of foreclosure or by deed-in-lieu of foreclosure is classified as real estate owned until such time as it is sold.

Note 1. Nature of Operations and Summary of Significant Accounting Policies (continued)

At acquisition date, the assets and liabilities of acquired banks are recorded at their estimated fair values which results in no ALLL carried over from acquired banks. Subsequent to acquisition, an allowance will be recorded on the acquired loan portfolios for further credit deterioration, if any.

Premises and Equipment

Premises and Equipment

Premises and equipment are accounted for at cost less depreciation. Depreciation is computed on a straight-line method over the estimated useful lives or the term of the related lease. The estimated useful life for office buildings is 15 - 40 years and the estimated useful life for furniture, fixtures, and equipment is 3 - 10 years. Interest is capitalized for any significant building projects. For additional information relating to premises and equipment, see Note 4.

Leases

Leases

The Company leases certain land, premises and equipment from third parties under operating and capital leases. The lease payments for operating lease agreements are recognized on a straight-line basis. The present value of the future minimum rental payments for capital leases is recognized as an asset when the lease is formed. Lease improvements incurred at the inception of the lease are recorded as an asset and depreciated over the initial term of the lease and lease improvements incurred subsequently are depreciated over the remaining term of the lease. For additional information relating to leases, see Note 4.

Other Real Estate Owned

Other Real Estate Owned

Property acquired by foreclosure or deed-in-lieu of foreclosure is initially recorded at fair value, less estimated selling cost, at acquisition date (i.e., cost of the property). The Company is considered to have received physical possession of residential real estate property collateralizing a consumer mortgage loan upon the occurrence of either the Company obtaining legal title to the property or the borrower conveying all interest in the property through a deed-in-lieu or similar agreement. Fair value is determined as the amount that could be reasonably expected in a current sale between a willing buyer and a willing seller in an orderly transaction between market participants at the measurement date. Subsequent to the initial acquisition, if the fair value of the asset, less estimated selling cost, is less than the cost of the property, a loss is recognized in other expense and the asset carrying value is reduced. Gain or loss on disposition of other real estate owned (“OREO”) is recorded in non-interest income or non-interest expense, respectively. In determining the fair value of the properties on the date of transfer and any subsequent estimated losses of net realizable value, the fair value of other real estate acquired by foreclosure or deed-in-lieu of foreclosure is determined primarily based upon appraisal or evaluation of the underlying property value.

Long- Lived Assets

Long-lived Assets

Long-lived assets are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. An asset is deemed impaired if the sum of the expected future cash flows is less than the carrying amount of the asset. If impaired, an impairment loss is recognized in other expense to reduce the carrying value of the asset to fair value. At December 31, 2015 and 2014, no long-lived assets were considered impaired.

Business Combinations and Intangible Assets

Business Combinations and Intangible Assets

Acquisition accounting requires the total purchase price to be allocated to the estimated fair values of assets acquired and liabilities assumed, including certain intangible assets. Goodwill is recorded if the purchase price exceeds the net fair value of assets acquired and a bargain purchase gain is recorded in other income if the net fair value of assets acquired exceeds the purchase price.

Adjustment of the allocated purchase price may be related to fair value estimates for which all information has not been obtained of the acquired entity known or discovered during the allocation period, the period of time required to identify and measure the fair values of the assets and liabilities acquired in the business combination. The allocation period is generally limited to one year following consummation of a business combination.

Core deposit intangible represents the intangible value of depositor relationships resulting from deposit liabilities assumed in acquisitions and is amortized using an accelerated method based on an estimated runoff of the related deposits. The core deposit intangible is evaluated for impairment and recoverability whenever events or changes in circumstances indicate that its carrying amount may not be recoverable, with any changes in estimated useful life accounted for prospectively over the revised remaining life. For additional information relating to core deposit intangibles, see Note 5.

The Company tests goodwill for impairment at the reporting unit level annually during the third quarter. The Company has identified that each of the bank divisions are reporting units (i.e., components of the Glacier Bank operating segment) given that each division has a separate management team that regularly reviews its respective division financial information; however, the reporting units are aggregated into a single reporting unit due to the reporting units having similar economic characteristics.

Note 1. Nature of Operations and Summary of Significant Accounting Policies (continued)

The goodwill of a reporting unit is tested for impairment between annual tests if an event occurs or circumstances change that would more-likely-than-not reduce the fair value of a reporting unit below its carrying amount. Examples of events and circumstances that could trigger the need for interim impairment testing include:

• a significant change in legal factors or in the business climate;

• an adverse action or assessment by a regulator;

• unanticipated competition;

• a loss of key personnel;

• a more-likely-than-not expectation that a reporting unit or a significant portion of a reporting unit will be sold or otherwise disposed of; and

• the testing for recoverability of a significant asset group within a reporting unit.

For the goodwill impairment assessment, the Company has the option, prior to the two-step process, to first assess qualitative factors to determine whether the existence of events or circumstances leads to a determination that it is more-likely-than-not that the fair value of a reporting unit is less than its carrying value. The Company opted to bypass the qualitative assessment for its 2015 and 2014 annual goodwill impairment testing and proceed directly to the two-step goodwill impairment test. The goodwill impairment two-step process requires the Company to make assumptions and judgments regarding fair value. In the first step, the Company calculates an implied fair value based on a control premium analysis. If the implied fair value is less than the carrying value, the second step is completed to compute the impairment amount, if any, by determining the “implied fair value” of goodwill. This determination requires the allocation of the estimated fair value of the reporting units to the assets and liabilities of the reporting units. Any remaining unallocated fair value represents the “implied fair value” of goodwill, which is compared to the corresponding carrying value of goodwill to compute impairment, if any.

For additional information relating to goodwill, see Note 5.

Non-Marketable Equity Securities

Non-Marketable Equity Securities

Non-marketable equity securities primarily consist of Federal Home Loan Bank (“FHLB”) stock. FHLB stock is restricted because such stock may only be sold to FHLB at its par value. Due to restrictive terms, and the lack of a readily determinable market value, FHLB stock is carried at cost. The investments in FHLB stock are required investments related to the Company’s borrowings from FHLB. FHLB obtains its funding primarily through issuance of consolidated obligations of the FHLB system. The U.S. government does not guarantee these obligations, and each of the regional FHLBs is jointly and severally liable for repayment of each other’s debt.

Bank-Owned Life Insurance

Bank-Owned Life Insurance

The Company maintains bank-owned life insurance policies on certain current and former employees and directors, which are recorded at their cash surrender values as determined by the insurance carriers. At December 31, 2015 and 2014, the carrying value associated with these policies is $49,534,000 and $46,030,000, respectively, and is recorded in other assets in the Company’s statements of financial position. The appreciation in the cash surrender value of the policies is recognized as a component of other non-interest income in the Company’s statements of operations.

Derivatives and Hedging Activities

Derivatives and Hedging Activities

For asset and liability management purposes, the Company has entered into interest rate swap agreements to hedge against changes in forecasted cash flows due to interest rate exposures. The interest rate swaps are recognized as assets or liabilities on the Company’s statements of financial condition and measured at fair value. Fair value estimates are obtained from third parties and are based on pricing models. The Company does not enter into interest rate swap agreements for trading or speculative purposes.

The Company takes into account the impact of bilateral collateral and master netting agreements that allows the Company to settle all interest rate swap agreements held with a single counterparty on a net basis, and to offset the net interest rate swap derivative position with the related collateral when recognizing interest rate swap derivative assets and liabilities.

Interest rate swaps are contracts in which a series of interest payments are exchanged over a prescribed period. The notional amount upon which the interest payments are based is not exchanged. The swap agreements are derivative instruments and convert a portion of the Company’s forecasted variable rate debt to a fixed rate (i.e., cash flow hedge) over the payment term of the interest rate swap. The effective portion of the gain or loss on the cash flow hedging instruments is initially reported as a component of other comprehensive income and subsequently reclassified into earnings in the same period during which the transaction affects earnings. The ineffective portion of the gain or loss on derivative instruments, if any, is recognized in earnings. For the years ended December 31, 2015, 2014, and 2013, the Company’s cash flow hedges were determined to be fully effective.

Note 1. Nature of Operations and Summary of Significant Accounting Policies (continued)

Interest rate derivative financial instruments receive hedge accounting treatment only if they are designated as a hedge and are expected to be, and are, highly effective in substantially reducing interest rate risk arising from the assets and liabilities identified as exposing the Company to risk. Derivative financial instruments that do not meet specified hedging criteria are recorded at fair value with changes in fair value recorded in income. The Company’s interest rate swaps are considered highly effective and currently meet the hedge accounting criteria.

Cash flows resulting from the interest rate derivative financial instruments that are accounted for as hedges of assets and liabilities are classified in the Company’s cash flow statement in the same category as the cash flows of the items being hedged. For additional information relating to interest rate swap agreements, see Note 10.

The Company also has residential real estate derivatives for commitments to fund certain residential real estate loans (interest rate locks) to be sold into the secondary market and forward commitments for the future delivery of residential real estate loans to third party investors on a best efforts basis. It is the Company’s practice to enter into forward commitments for the future delivery of residential real estate loans when interest rate lock commitments are entered into in order to economically hedge the effect of changes in interest rates resulting from its commitments to fund the loans. These derivatives are not designated in hedge relationships. Such derivatives are short-term in nature and changes in fair value are not recorded as gains on sale of loans because the change is not significant.

Stock-based Compensation

Stock-based Compensation

Stock-based compensation awards granted, comprised of stock options and restricted stock awards, are valued at fair value and compensation cost is recognized on a straight-line basis, net of estimated forfeitures, over the requisite service period of each award. For additional information relating to stock-based compensation, see Note 12.

Advertising and Promotion

Advertising and Promotion

Advertising and promotion costs are recognized in the period incurred.

Income Taxes

Income Taxes

The Company’s income tax expense consists of current and deferred income tax expense. Current income tax expense reflects taxes to be paid or refunded for the current period by applying the provisions of enacted tax law to earnings or losses. Deferred income tax expense results from changes in deferred assets and liabilities between periods. The Company recognizes interest and penalties related to income tax matters in income tax expense.

Deferred tax assets and liabilities are recognized for estimated future income tax consequences attributable to differences between the financial statement carrying amounts of assets and liabilities and their respective tax bases. The effect on deferred tax assets and liabilities of a change in income tax rates is recognized in income in the period that includes the enactment date.

Deferred tax assets are reduced by a valuation allowance if, based on the weight of available evidence, it is more-likely-than-not that some portion or all of the deferred tax assets will not be realized. The term more-likely-than-not means a likelihood of more than fifty percent. The recognition threshold considers the facts, circumstances, and information available at the reporting date and is subject to the Company’s judgment. In assessing the need for a valuation allowance, the Company considers both positive and negative evidence. For additional information relating to income taxes, see Note 15.

Comprehensive Income

Comprehensive Income

Comprehensive income consists of net income and other comprehensive income (“OCI”). OCI includes unrealized gains and losses, net of tax effect, on available-for-sale securities and derivatives used for cash flow hedges.

Earnings Per Share

Earnings Per Share

Basic earnings per share is computed by dividing net income by the weighted-average number of shares of common stock outstanding during the period presented. Diluted earnings per share is computed by including the net increase in shares as if dilutive outstanding stock options were exercised and restricted stock awards were vested, using the treasury stock method. For additional information relating to earnings per share, see Note 17.

Reclassifications

Reclassifications

Certain reclassifications have been made to the 2014 and 2013 financial statements to conform to the 2015 presentation.

Impact of Recent Authoritative Accounting Guidance

Impact of Recent Authoritative Accounting Guidance

The Accounting Standards Codification^™ (“ASC”) is the Financial Accounting Standards Board’s (“FASB”) officially recognized source of authoritative GAAP applicable to all public and non-public non-governmental entities. Rules and interpretive releases of the Securities and Exchange Commission (“SEC”) under the authority of the federal securities laws are also sources of authoritative GAAP for the Company as an SEC registrant. All other accounting literature is non-authoritative. The following paragraphs provide descriptions of recently adopted or newly issued but not yet effective accounting standards that could have a material effect on the Company’s financial position or results of operations.

In January 2016, FASB amended FASB ASC Topic 825, Financial Instruments. The amendments in this Update address certain aspects of recognition, measurement, presentation, and disclosure of financial instruments. The amendments are effective for public business entities for the first interim and annual reporting periods beginning after December 15, 2017. Early adoption is only permitted under certain circumstances outlined in the amendments. A reporting entity should apply the amendments by means of a cumulative-effect adjustment to the Company’s statement of financial condition as of the beginning of the reporting year of adoption. The amendments related to equity securities without readily determinable fair values should be applied prospectively. The Company is currently evaluating the impact of these amendments, but does not expect them to have a material effect on the Company’s financial position or results of operations.

In September 2015, FASB amended FASB ASC Topic 805, Business Combinations. The amendments in this Update require that an acquirer recognize adjustments to provisional amounts that are identified during the measurement period in the reporting period in which the adjustments are necessary. The amendments in this Update require that the acquirer record, in the same period’s financial statements, the effect on earnings of changes in depreciation, amortization, or other income effects, if any, as a result of the change to the provisional amounts, calculated as if the accounting had been completed at the acquisition date. The amendments in this Update require an entity to present separately on the face of the income statement or disclose in the notes the portion of the amount recorded in current-period earnings by line item that would have been recorded in previous reporting periods if the adjustment to the provisional amounts had been recognized as of the acquisition date. The amendments should be applied prospectively to all periods presented and are effective for public business entities for annual periods and interim periods within those annual periods, beginning after December 15, 2015. The Company has evaluated the impact of these amendments and determined there would not be a material effect on the Company’s financial position or results of operations.

In February 2015, FASB amended FASB ASC Topic 810, Consolidation. The amendments in this Update make targeted changes to the current consolidation guidance and end a deferral available for investment companies. The amendments modify the evaluation of whether limited partnerships and similar legal entities are VIEs or voting interest entities. Consolidation conclusions may change for entities that already are VIEs due to changes in how entities would analyze related-party relationships and fee arrangements. The amendments relax existing criteria for determining when fees paid to a decision maker or service provider do not represent a variable interest by focusing on whether those fees are “at market.” The amendments eliminate both the consolidation model specific to limited partnerships and the current presumption that a general partner controls a limited partnership. Application of the new amendments could result in some entities being deconsolidated or considered a VIE and subject to additional disclosures. The amendments are effective for public business entities for the first interim and annual reporting periods beginning after December 15, 2015. Early adoption is permitted, including adoption in an interim period with any adjustments reflected as of the beginning of the reporting year that includes the interim period. A reporting entity may apply the amendments using a modified retrospective approach by recording a cumulative-effect adjustment to equity as of the beginning of the reporting year of adoption or may apply the amendments retrospectively. The Company is currently evaluating the impact of these amendments, but does not expect them to have a material effect on the Company’s financial position or results of operations.

In August 2014, FASB amended FASB ASC Subtopic 310-40, Receivables - Troubled Debt Restructurings by Creditors. The amendment requires that a mortgage loan be derecognized and that a separate other receivable be recognized upon foreclosure if the following conditions are met: 1) The loan has a government guarantee that is not separable from the loan before foreclosure; 2) At the time of foreclosure, the creditor has the intent to convey the real estate property to the guarantor and make a claim on the guarantee, and the creditor has the ability to recover under that claim; and 3) At the time of foreclosure, any amount of the claim that is determined on the basis of the fair value of the real estate is fixed. Upon foreclosure, the separate other receivable should be measured based on the amount of the loan balance (principal and interest) expected to be recovered from the guarantor. The amendment is effective for public business entities for interim and annual periods beginning after December 15, 2014. An entity can elect to adopt the amendments using either a prospective transition method or a modified retrospective method as defined in the amendment. The Company has evaluated the impact of the adoption of this amendment and determined there was not a material effect on the Company’s financial position or results of operations.

Note 1. Nature of Operations and Summary of Significant Accounting Policies (continued)

In June 2014, FASB amended FASB ASC Topic 860, Transfers and Servicing. The amendments in this Update require the following accounting changes: 1) change the accounting for repurchase-to-maturity transactions to secured borrowing accounting; and 2) for repurchase finance arrangements, require separate accounting for a transfer of a financial asset executed contemporaneously with a repurchase agreement with the same counterparty, which will result in a secured borrowing accounting for the repurchase agreement. The amendments also require certain disclosures for securities sold under agreements to repurchase (“repurchase agreements”), securities lending transactions, and repurchase-to-maturity transactions that are accounted for as secured borrowings. The accounting changes are effective for public business entities for the first interim or annual reporting periods beginning after December 15, 2014. Early application for public business entities is not permitted. The disclosure changes for repurchase agreements are effective for public business entities for annual reporting periods beginning after December 15, 2014. The Company has evaluated the impact of the adoption of this amendment and determined there was not a material effect on the Company’s financial position or results of operations.

In May 2014, FASB amended FASB ASC Topic 606, Revenue from Contracts with Customers. The amendments clarify the principals for recognizing revenue and develop a common revenue standard among industries. The new guidance establishes the following core principal: recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for goods or services. Five steps are provided for a company or organization to follow to achieve such core principle. The new guidance also includes a cohesive set of disclosure requirements that will provide users of financial statements with comprehensive information about the nature, amount, timing, and uncertainty of revenue and cash flows arising from contracts with customers. The entity should apply the amendments using one of two retrospective methods described in the amendment. Accounting Standards Update No 2015-14, Revenue from Contracts with Customers (Topic 606) delayed the effective date for public entities to annual reporting periods beginning after December 15, 2017, including interim reporting periods within that reporting period. Early application is permitted only as of annual reporting periods beginning after December 15, 2016, including interim reporting periods within that reporting period. The Company is currently evaluating the impact of these amendments, but does not expect them to have a material effect on the Company’s financial position or results of operations.

In January 2014, FASB amended FASB ASC Subtopic 310-40, Receivables - Troubled Debt Restructurings by Creditors. The amendment clarifies that an in substance repossession foreclosure occurs when a creditor is considered to have received physical possession of residential real estate property collateralizing a consumer mortgage loan, upon either 1) the creditor obtaining legal title to the residential real estate property upon completion of a foreclosure; or 2) the borrower conveying all interest in the residential real estate property to the creditor to satisfy that loan through completion of a deed-in-lieu of foreclosure or through a similar legal agreement. Additionally, the amendment requires interim and annual disclosure of both 1) the amount of foreclosed residential real estate property held by the creditor; and 2) the recorded investment in consumer mortgage loans collateralized by residential real estate property that are in the process of foreclosure according to local requirements of the applicable jurisdiction. The amendment is effective for public business entities for interim and annual periods beginning after December 15, 2014. An entity can elect to adopt the amendments using either a modified retrospective transition method or a prospective transition method as defined in the amendment. The Company has evaluated the impact of the adoption of this amendment and determined there was not a material effect on the Company’s financial position or results of operations.

In January 2014, FASB amended FASB ASC Topic 323, Investments - Equity Method and Joint Ventures. The amendments permit entities to make an accounting policy election for their investments in qualified affordable housing projects using the proportional amortization method if certain conditions are met. Under the proportional amortization method, an entity amortizes the initial cost of the investment in proportion to the tax credits and other tax benefits received and recognizes the net investment performance in the income statement as a component of income tax expense. The amendments should be applied retrospectively to all periods presented and are effective for public business entities for annual periods and interim periods within those annual periods, beginning after December 15, 2014. The adoption of these amendments did not have a material effect on the Company’s financial position or results of operations.

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Investment Securities (Tables)

12 Months Ended

Dec. 31, 2015

Investments, Debt and Equity Securities [Abstract]

Amortized cost, gross unrealized gain and losses and fair value of investment securities

The following tables present the amortized cost, the gross unrealized gains and losses and the fair value of the Company’s investment securities:

	December 31, 2015
	Amortized Cost		Gross Unrealized			Fair Value
(Dollars in thousands)			Gains	Losses
Available-for-sale
U.S. government and federal agency	$	47,868	15	(432	)	47,451
U.S. government sponsored enterprises	93,230		100	(163	)	93,167
State and local governments	856,738		34,159	(5,878	)	885,019
Corporate bonds	386,629		611	(3,077	)	384,163
Residential mortgage-backed securities	1,203,548		6,180	(8,768	)	1,200,960
Total available-for-sale	2,588,013		41,065	(18,318	)	2,610,760
Held-to-maturity
State and local governments	702,072		31,863	(4,422	)	729,513
Total held-to-maturity	702,072		31,863	(4,422	)	729,513
Total investment securities	$	3,290,085	72,928	(22,740	)	3,340,273

	December 31, 2014
	Amortized Cost		Gross Unrealized			Fair Value
(Dollars in thousands)			Gains	Losses
Available-for-sale
U.S. government and federal agency	$	44	—	—		44
U.S. government sponsored enterprises	21,916		31	(2	)	21,945
State and local governments	962,365		40,173	(4,569	)	997,969
Corporate bonds	313,545		2,059	(750	)	314,854
Residential mortgage-backed securities	1,043,897		11,205	(2,486	)	1,052,616
Total available-for-sale	2,341,767		53,468	(7,807	)	2,387,428
Held-to-maturity
State and local governments	520,997		32,925	(2,976	)	550,946
Total held-to-maturity	520,997		32,925	(2,976	)	550,946
Total investment securities	$	2,862,764	86,393	(10,783	)	2,938,374

Amortized cost and fair value of securities by contractual maturity

The following table presents the amortized cost and fair value of available-for-sale and held-to-maturity securities by contractual maturity at December 31, 2015. Actual maturities may differ from expected or contractual maturities since issuers have the right to prepay obligations with or without prepayment penalties.

	December 31, 2015
	Available-for-Sale			Held-to-Maturity
(Dollars in thousands)	Amortized Cost		Fair Value	Amortized Cost	Fair Value
Due within one year	$	140,703	141,230	—	—
Due after one year through five years	486,235		484,467	—	—
Due after five years through ten years	128,158		131,883	25,073	25,605
Due after ten years	629,369		652,220	676,999	703,908
	1,384,465		1,409,800	702,072	729,513
Residential mortgage-backed securities 1	1,203,548		1,200,960	—	—
Total	$	2,588,013	2,610,760	702,072	729,513

________

¹Residential mortgage-backed securities, which have prepayment provisions, are not assigned to maturity categories due to fluctuations in their prepayment speeds.

Gain or loss on sale of investment securities

Proceeds from sales and calls of investment securities and the associated gains and losses that have been included in earnings are listed below:

	Years ended
(Dollars in thousands)	December 31, 2015			December 31, 2014		December 31, 2013
Available-for-sale
Proceeds from sales and calls of investment securities	$	167,660		219,849		181,971
Gross realized gains 1	1,877			501		3,723
Gross realized losses 1	(1,808		)	(705	)	(4,022	)
Held-to-maturity
Proceeds from calls of investment securities	20,997			8,930		—
Gross realized gains 1	50			22		—
Gross realized losses 1	(100		)	(6	)	—

__________

¹The gain or loss on the sale or call of each investment security is determined by the specific identification method.

Summary of investment securities with an unrealized loss position

Investment securities with an unrealized loss position are summarized as follows:

	December 31, 2015
	Less than 12 Months				12 Months or More			Total
(Dollars in thousands)	Fair Value		Unrealized Loss		Fair Value	Unrealized Loss		Fair Value	Unrealized Loss
Available-for-sale
U.S. government and federal agency	$	42,493	(432	)	2	—		42,495	(432	)
U.S. government sponsored enterprises	60,010		(163	)	—	—		60,010	(163	)
State and local governments	102,422		(1,629	)	115,943	(4,249	)	218,365	(5,878	)
Corporate bonds	228,258		(1,812	)	13,962	(1,265	)	242,220	(3,077	)
Residential mortgage-backed securities	730,412		(7,226	)	53,021	(1,542	)	783,433	(8,768	)
Total available-for-sale	$	1,163,595	(11,262	)	182,928	(7,056	)	1,346,523	(18,318	)
Held-to-maturity
State and local governments	$	42,322	(594	)	81,709	(3,828	)	124,031	(4,422	)
Total held-to-maturity	$	42,322	(594	)	81,709	(3,828	)	124,031	(4,422	)

	December 31, 2014
	Less than 12 Months				12 Months or More			Total
(Dollars in thousands)	Fair Value		Unrealized Loss		Fair Value	Unrealized Loss		Fair Value	Unrealized Loss
Available-for-sale
U.S. government and federal agency	$	—	—		3	—		3	—
U.S. government sponsored enterprises	13,793		(2	)	—	—		13,793	(2	)
State and local governments	91,082		(1,273	)	115,927	(3,296	)	207,009	(4,569	)
Corporate bonds	60,289		(545	)	7,874	(205	)	68,163	(750	)
Residential mortgage-backed securities	192,962		(926	)	78,223	(1,560	)	271,185	(2,486	)
Total available-for-sale	$	358,126	(2,746	)	202,027	(5,061	)	560,153	(7,807	)
Held-to-maturity
State and local governments	$	18,643	(624	)	76,761	(2,352	)	95,404	(2,976	)
Total held-to-maturity	$	18,643	(624	)	76,761	(2,352	)	95,404	(2,976	)

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Loans Receivable, Net (Tables)

12 Months Ended

Dec. 31, 2015

Receivables [Abstract]

Summary of loans receivable

The following table presents loans receivable for each portfolio class of loans:

	At or for the Year ended
(Dollars in thousands)	December 31, 2015			December 31, 2014
Residential real estate loans	$	688,912		611,463
Commercial loans
Real estate	2,633,953			2,337,548
Other commercial	1,099,564			925,900
Total	3,733,517			3,263,448
Consumer and other loans
Home equity	420,901			394,670
Other consumer	235,351			218,514
Total	656,252			613,184
Loans receivable 1	5,078,681			4,488,095
Allowance for loan and lease losses	(129,697		)	(129,753	)
Loans receivable, net	$	4,948,984		4,358,342
Weighted-average interest rate on loans (tax-equivalent)	4.84		%	4.86	%

__________

¹  Includes net deferred fees, costs, premiums and discounts of $15,529,000 and $13,710,000 at December 31, 2015 and 2014, respectively.

Summary of the activity in the ALLL

The following tables summarize the activity in the ALLL by portfolio segment:

	Year ended December 31, 2015
(Dollars in thousands)	Total			Residential Real Estate		Commercial Real Estate		Other Commercial		Home Equity		Other Consumer
Balance at beginning of period	$	129,753		14,680		67,799		30,891		9,963		6,420
Provision for loan losses	2,284			640		(696	)	3,030		(480	)	(210	)
Charge-offs	(7,002		)	(985	)	(1,920	)	(2,322	)	(809	)	(966	)
Recoveries	4,662			92		2,694		926		324		626
Balance at end of period	$	129,697		14,427		67,877		32,525		8,998		5,870

	Year ended December 31, 2014
(Dollars in thousands)	Total			Residential Real Estate		Commercial Real Estate		Other Commercial		Home Equity		Other Consumer
Balance at beginning of period	$	130,351		14,067		70,332		28,630		9,299		8,023
Provision for loan losses	1,912			716		(2,877	)	3,708		1,254		(889	)
Charge-offs	(7,603		)	(431	)	(1,802	)	(3,058	)	(1,038	)	(1,274	)
Recoveries	5,093			328		2,146		1,611		448		560
Balance at end of period	$	129,753		14,680		67,799		30,891		9,963		6,420

Note 3. Loans Receivable, Net (continued)

	Year ended December 31, 2013
(Dollars in thousands)	Total			Residential Real Estate		Commercial Real Estate		Other Commercial		Home Equity		Other Consumer
Balance at beginning of period	$	130,854		15,482		74,398		21,567		10,659		8,748
Provision for loan losses	6,887			(921	)	(3,670	)	10,271		868		339
Charge-offs	(13,643		)	(793	)	(3,736	)	(4,671	)	(2,594	)	(1,849	)
Recoveries	6,253			299		3,340		1,463		366		785
Balance at end of period	$	130,351		14,067		70,332		28,630		9,299		8,023

Summary of ALLL and loans receivable

The following tables disclose the balance in the ALLL and the recorded investment in loans by portfolio segment:

	December 31, 2015
(Dollars in thousands)	Total		Residential Real Estate	Commercial Real Estate	Other Commercial	Home Equity	Other Consumer
Allowance for loan and lease losses
Individually evaluated for impairment	$	8,124	782	1,629	5,277	64	372
Collectively evaluated for impairment	121,573		13,645	66,248	27,248	8,934	5,498
Total allowance for loan and lease losses	$	129,697	14,427	67,877	32,525	8,998	5,870
Loans receivable
Individually evaluated for impairment	$	140,773	20,767	85,845	23,874	6,493	3,794
Collectively evaluated for impairment	4,937,908		668,145	2,548,108	1,075,690	414,408	231,557
Total loans receivable	$	5,078,681	688,912	2,633,953	1,099,564	420,901	235,351

	December 31, 2014
(Dollars in thousands)	Total		Residential Real Estate	Commercial Real Estate	Other Commercial	Home Equity	Other Consumer
Allowance for loan and lease losses
Individually evaluated for impairment	$	11,597	853	2,967	6,836	447	494
Collectively evaluated for impairment	118,156		13,827	64,832	24,055	9,516	5,926
Total allowance for loan and lease losses	$	129,753	14,680	67,799	30,891	9,963	6,420
Loans receivable
Individually evaluated for impairment	$	161,366	19,576	105,264	25,321	6,901	4,304
Collectively evaluated for impairment	4,326,729		591,887	2,232,284	900,579	387,769	214,210
Total loans receivable	$	4,488,095	611,463	2,337,548	925,900	394,670	218,514

Summary of the impaired loans

The following tables disclose information related to impaired loans by portfolio segment:

	At or for the Year ended December 31, 2015
(Dollars in thousands)	Total		Residential Real Estate	Commercial Real Estate	Other Commercial	Home Equity	Other Consumer
Loans with a specific valuation allowance
Recorded balance	$	34,683	8,253	12,554	11,923	102	1,851
Unpaid principal balance	36,157		9,198	12,581	12,335	109	1,934
Specific valuation allowance	8,124		782	1,629	5,277	64	372
Average balance	36,176		6,393	15,827	11,768	426	1,762
Loans without a specific valuation allowance
Recorded balance	$	106,090	12,514	73,291	11,951	6,391	1,943
Unpaid principal balance	132,718		13,969	94,028	15,539	7,153	2,029
Average balance	116,356		13,615	78,684	15,479	6,350	2,228
Total
Recorded balance	$	140,773	20,767	85,845	23,874	6,493	3,794
Unpaid principal balance	168,875		23,167	106,609	27,874	7,262	3,963
Specific valuation allowance	8,124		782	1,629	5,277	64	372
Average balance	152,532		20,008	94,511	27,247	6,776	3,990

	At or for the Year ended December 31, 2014
(Dollars in thousands)	Total		Residential Real Estate	Commercial Real Estate	Other Commercial	Home Equity	Other Consumer
Loans with a specific valuation allowance
Recorded balance	$	45,688	4,110	27,155	11,377	1,214	1,832
Unpaid principal balance	48,477		4,276	28,048	12,461	1,336	2,356
Specific valuation allowance	11,597		853	2,967	6,836	447	494
Average balance	53,339		5,480	24,519	19,874	1,039	2,427
Loans without a specific valuation allowance
Recorded balance	$	115,678	15,466	78,109	13,944	5,687	2,472
Unpaid principal balance	145,038		16,683	100,266	19,117	6,403	2,569
Average balance	128,645		15,580	89,015	14,024	7,163	2,863
Total
Recorded balance	$	161,366	19,576	105,264	25,321	6,901	4,304
Unpaid principal balance	193,515		20,959	128,314	31,578	7,739	4,925
Specific valuation allowance	11,597		853	2,967	6,836	447	494
Average balance	181,984		21,060	113,534	33,898	8,202	5,290

Loan portfolio aging analysis

The following tables present an aging analysis of the recorded investment in loans by portfolio segment:

	December 31, 2015
(Dollars in thousands)	Total		Residential Real Estate	Commercial Real Estate	Other Commercial	Home Equity	Other Consumer
Accruing loans 30-59 days past due	$	15,801	4,895	4,393	3,564	1,601	1,348
Accruing loans 60-89 days past due	3,612		961	1,841	286	280	244
Accruing loans 90 days or more past due	2,131		—	231	1,820	15	65
Non-accrual loans	51,133		8,073	28,819	7,691	6,022	528
Total past due and non-accrual loans	72,677		13,929	35,284	13,361	7,918	2,185
Current loans receivable	5,006,004		674,983	2,598,669	1,086,203	412,983	233,166
Total loans receivable	$	5,078,681	688,912	2,633,953	1,099,564	420,901	235,351

	December 31, 2014
(Dollars in thousands)	Total		Residential Real Estate	Commercial Real Estate	Other Commercial	Home Equity	Other Consumer
Accruing loans 30-59 days past due	$	19,139	3,506	7,925	5,310	1,374	1,024
Accruing loans 60-89 days past due	6,765		1,686	3,592	609	679	199
Accruing loans 90 days or more past due	214		35	31	74	17	57
Non-accrual loans	61,882		6,798	39,717	8,421	5,969	977
Total past due and non-accrual loans	88,000		12,025	51,265	14,414	8,039	2,257
Current loans receivable	4,400,095		599,438	2,286,283	911,486	386,631	216,257
Total loans receivable	$	4,488,095	611,463	2,337,548	925,900	394,670	218,514

Summary of TDRs

The following tables present TDRs that occurred during the periods presented and the TDRs that occurred within the previous twelve months that subsequently defaulted during the periods presented:

	Year ended December 31, 2015
(Dollars in thousands)	Total		Residential Real Estate	Commercial Real Estate	Other Commercial	Home Equity	Other Consumer
TDRs that occurred during the period
Number of loans	64		3	25	22	1	13
Pre-modification recorded balance	$	22,316	2,259	8,877	10,545	137	498
Post-modification recorded balance	$	23,110	2,203	9,927	10,325	157	498
TDRs that subsequently defaulted
Number of loans	7		1	1	4	—	1
Recorded balance	$	2,556	1,947	78	529	—	2

Note 3. Loans Receivable, Net (continued)

	Year ended December 31, 2014
(Dollars in thousands)	Total		Residential Real Estate	Commercial Real Estate	Other Commercial	Home Equity	Other Consumer
TDRs that occurred during the period
Number of loans	51		—	18	24	6	3
Pre-modification recorded balance	$	37,781	—	21,760	12,522	3,385	114
Post-modification recorded balance	$	37,075	—	21,803	11,884	3,274	114
TDRs that subsequently defaulted
Number of loans	5		—	2	1	2	—
Recorded balance	$	4,453	—	927	693	2,833	—

	Year ended December 31, 2013
(Dollars in thousands)	Total		Residential Real Estate	Commercial Real Estate	Other Commercial	Home Equity	Other Consumer
TDRs that occurred during the period
Number of loans	63		9	21	23	2	8
Pre-modification recorded balance	$	29,046	1,907	20,334	6,087	147	571
Post-modification recorded balance	$	29,359	2,293	20,334	6,087	147	498
TDRs that subsequently defaulted
Number of loans	5		1	1	3	—	—
Recorded balance	$	849	265	79	505	—	—

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Premises and Equipment (Tables)

12 Months Ended

Dec. 31, 2015

Property, Plant and Equipment [Abstract]

Premises and equipment, net of accumulated depreciation

Premises and equipment, net of accumulated depreciation, consist of the following:

(Dollars in thousands)	December 31, 2015			December 31, 2014
Land	$	30,108		27,605
Office buildings and construction in progress	187,787			172,544
Furniture, fixtures and equipment	78,803			70,622
Leasehold improvements	8,028			7,813
Accumulated depreciation	(110,696		)	(99,409	)
Net premises and equipment	$	194,030		179,175

Future Minimum Rental Commitments required under Operating and Capital Leases

The total future minimum rental commitments required under operating and capital leases that have initial or remaining noncancelable lease terms in excess of one year at December 31, 2015 are as follows:

(Dollars in thousands)	Capital Leases		Operating Leases	Total
Years ending December 31,
2016	$	92	2,443	2,535
2017	92		2,132	2,224
2018	92		1,877	1,969
2019	92		1,682	1,774
2020	92		1,160	1,252
Thereafter	11		3,202	3,213
Total minimum lease payments	471		12,496	12,967
Less: Amount representing interest	64
Present value of minimum lease payments	407
Less: Current portion of obligations under capital leases	72
Long-term portion of obligations under capital leases	$	335

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Other Intangible Assets and Goodwill (Tables)

12 Months Ended

Dec. 31, 2015

Goodwill and Intangible Assets Disclosure [Abstract]

Core deposit intangibles

The following table sets forth information regarding the Company’s core deposit intangibles:

	At or for the Years ended
(Dollars in thousands)	December 31, 2015			December 31, 2014		December 31, 2013
Gross carrying value	$	38,527		32,056		27,857
Accumulated amortization	(23,972		)	(21,156	)	(18,345	)
Net carrying value	$	14,555		10,900		9,512
Aggregate amortization expense	$	2,964		2,811		2,401
Weighted-average amortization period	9.7 years
Estimated amortization expense for the years ending December 31,
2016	$	2,923
2017	2,027
2018	1,598
2019	1,512
2020	1,465

Changes in the carrying value of goodwill

The following table discloses the changes in the carrying value of goodwill:

	Years ended
(Dollars in thousands)	December 31, 2015		December 31, 2014	December 31, 2013
Net carrying value at beginning of period	$	129,706	129,706	106,100
Acquisitions	10,932		—	23,606
Net carrying value at end of period	$	140,638	129,706	129,706

Gross carrying value of goodwill and the accumulated impairment charge

The gross carrying value of goodwill and the accumulated impairment charge consists of the following:

(Dollars in thousands)	December 31, 2015			December 31, 2014
Gross carrying value	$	180,797		169,865
Accumulated impairment charge 1	(40,159		)	(40,159	)
Net carrying value	$	140,638		129,706

__________

¹ A goodwill impairment charge was recognized in 2011 and was due to high levels of volatility and dislocation in bank stock prices nationwide.

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Variable Interest Entities (Tables)

12 Months Ended

Dec. 31, 2015

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Carrying amounts of VIEs' assets and liabilities

The following table summarizes the carrying amounts of the consolidated VIEs’ assets and liabilities included in the Company’s statements of financial condition and are adjusted for intercompany eliminations. All assets presented can be used only to settle obligations of the consolidated VIEs and all liabilities presented consist of liabilities for which creditors and other beneficial interest holders therein have no recourse to the general credit of the Company.

	December 31, 2015			December 31, 2014
(Dollars in thousands)	CDE (NMTC)		LIHTC	CDE (NMTC)	LIHTC
Assets
Loans receivable	$	57,126	—	36,077	—
Premises and equipment, net	—		13,503	—	13,106
Accrued interest receivable	117		—	116	—
Other assets	887		542	616	258
Total assets	$	58,130	14,045	36,809	13,364
Liabilities
Other borrowed funds	$	4,555	1,640	4,555	1,690
Accrued interest payable	4		5	4	5
Other liabilities	139		—	185	—
Total liabilities	$	4,698	1,645	4,744	1,695

VIE Net Income or Loss and Associated Tax Credits

The following table summarizes the net investment loss of the consolidated VIEs and the associated tax credits included in the Company’s statements of operations during the years ended December 31, 2015 and 2014. The net investment loss was included in income before income taxes on the Company’s statements of operations.

	Years ended
	December 31, 2015					December 31, 2014
(Dollars in thousands)	CDE (NMTC)			LIHTC		CDE (NMTC)		LIHTC
VIE loss	$	(1,286	)	(974	)	(879	)	(1,082	)
Federal income tax credits	2,138			1,175		1,744		1,270

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Deposits (Tables)

12 Months Ended

Dec. 31, 2015

Deposits [Abstract]

Scheduled maturities of time deposits

The scheduled maturities of time deposits are as follows:

(Dollars in thousands)	Amount
Years ending December 31,
2016	$	775,227
2017	149,999
2018	56,554
2019	40,696
2020	36,674
Thereafter	1,500
	$	1,060,650

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Borrowings (Tables)

12 Months Ended

Dec. 31, 2015

Debt Disclosure [Abstract]

Carrying Value of Repurchase Agreements

The following tables summarize the carrying value of the Company’s repurchase agreements by remaining contractual maturity and category of collateral:

	December 31, 2015
	Remaining Contractual Maturity of the Agreements
(Dollars in thousands)	Overnight and Continuous		Up to 30 Days	Total
U.S. government sponsored enterprises	$	12,507	—	12,507
Residential mortgage-backed securities	408,460		2,447	410,907
Total	$	420,967	2,447	423,414

	December 31, 2014
	Remaining Contractual Maturity of the Agreements
(Dollars in thousands)	Overnight and Continuous		Up to 30 Days	Total
Residential mortgage-backed securities	$	391,997	5,110	397,107

FHLB Advances

The scheduled maturities of FHLB advances consist of the following:

	December 31, 2015				December 31, 2014
(Dollars in thousands)	Amount		Weighted Rate		Amount		Weighted Rate
Maturing within one year	$	185,091	1.02	%	$	93,979	2.81	%
Maturing one year through two years	179		4.19	%	45,042		2.99	%
Maturing two years through three years	70,597		1.01	%	—		—	%
Maturing three years through four years	167		3.79	%	20,250		2.83	%
Maturing four years through five years	945		4.98	%	174		4.74	%
Thereafter	137,152		3.12	%	137,499		3.12	%
Total	$	394,131	1.76	%	$	296,944	2.98	%

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Subordinated Debentures (Tables)

12 Months Ended

Dec. 31, 2015

Debt Instruments [Abstract]

Terms of Subordinated Debentures

The terms of the subordinated debentures, arranged by maturity date, are reflected in the table below. The amounts include fair value adjustments from acquisitions.

	December 31, 2015				Variable Rate Structure	Maturity Date
(Dollars in thousands)	Balance		Rate
First Company Statutory Trust 2001	$	3,144	3.629	%	3 mo LIBOR plus 3.30%	07/31/2031
First Company Statutory Trust 2003	2,316		3.576	%	3 mo LIBOR plus 3.25%	03/26/2033
Glacier Capital Trust II	46,393		3.071	%	3 mo LIBOR plus 2.75%	04/07/2034
Citizens (ID) Statutory Trust I	5,155		3.176	%	3 mo LIBOR plus 2.65%	06/17/2034
Glacier Capital Trust III	36,083		1.611	%	3 mo LIBOR plus 1.29%	04/07/2036
Glacier Capital Trust IV	30,928		2.082	%	3 mo LIBOR plus 1.57%	09/15/2036
Bank of the San Juans Bancorporation Trust I	1,829		2.234	%	3 mo LIBOR plus 1.82%	03/01/2037
	$	125,848

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Derivatives and Hedging Activities (Tables)

12 Months Ended

Dec. 31, 2015

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Summary of Interest Rate Swap Derivative Financial Instruments

The Company’s interest rate swap derivative financial instruments as of December 31, 2015 are as follows:

(Dollars in thousands)	Forecasted Notional  Amount		Variable Interest Rate 1	Fixed Interest Rate 1		Payment Term
Interest rate swap	$	160,000	3 month LIBOR	3.378	%	Oct. 21, 2014 - Oct. 21, 2021
Interest rate swap	100,000		3 month LIBOR	2.498	%	Nov. 30, 2015 - Nov. 30, 2022

__________

¹The Company pays the fixed interest rate and the counterparty pays the Company the variable interest rate.

Summary of Pre-Tax Gains or Losses

The following table presents the pre-tax gains or losses recorded in accumulated other comprehensive income and the Company’s statements of operations relating to the interest rate swap derivative financial instruments:

	Years ended
(Dollars in thousands)	December 31, 2015			December 31, 2014		December 31, 2013
Interest rate swaps
Amount of (loss) gain recognized in OCI (effective portion)	$	(7,857	)	(19,557	)	18,728
Amount of loss reclassified from OCI to interest expense	(5,025		)	(993	)	—
Amount of loss recognized in other non-interest expense (ineffective portion)	—			—		—

Offsetting Liabilities

The following table discloses the offsetting of financial liabilities and interest rate swap derivative liabilities. There were no interest rate swap derivative assets at the dates presented.

	December 31, 2015				December 31, 2014
(Dollars in thousands)	Gross Amounts of Recognized Liabilities		Gross Amounts Offset in the Statements of Financial Position	Net Amounts of Liabilities Presented in the Statements of Financial Position	Gross Amounts of Recognized Liabilities	Gross Amounts Offset in the Statements of Financial Position	Net Amounts of Liabilities Presented in the Statements of Financial Position
Interest rate swaps	$	19,499	—	19,499	16,668	—	16,668

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Regulatory Capital (Tables)

12 Months Ended

Dec. 31, 2015

Banking and Thrift [Abstract]

Capital adequacy guidelines and compliance

The following tables illustrate the FRB’s adequacy guidelines and the Company’s and the Bank’s compliance with those guidelines:

	December 31, 2015
	Actual				Required for Capital Adequacy Purposes				To Be Well Capitalized Under Prompt Corrective Action Regulations
(Dollars in thousands)	Amount		Ratio		Amount		Ratio		Amount		Ratio
Total capital (to risk-weighted assets)
Consolidated	$	1,131,460	17.17	%	$	527,160	8.00	%	N/A		N/A
Glacier Bank	1,093,669		16.66	%	525,228		8.00	%	656,535		10.00	%
Tier 1 capital (to risk-weighted assets)
Consolidated	$	1,048,505	15.91	%	$	395,370	6.00	%	N/A		N/A
Glacier Bank	1,010,981		15.40	%	393,921		6.00	%	525,228		8.00	%
Common Equity Tier 1 (to risk-weighted assets)
Consolidated	$	926,523	14.06	%	$	296,528	4.50	%	N/A		N/A
Glacier	1,010,981		15.40	%	295,441		4.50	%	426,748		6.50	%
Tier 1 capital (to average assets)
Consolidated	$	1,048,505	12.01	%	$	349,066	4.00	%	N/A		N/A
Glacier Bank	1,010,981		11.66	%	346,715		4.00	%	$	433,394	5.00	%

	December 31, 2014
	Actual				Required for Capital Adequacy Purposes				To Be Well Capitalized Under Prompt Corrective Action Regulations
(Dollars in thousands)	Amount		Ratio		Amount		Ratio		Amount		Ratio
Total capital (to risk-weighted assets)
Consolidated	$	1,065,282	18.93	%	$	450,240	8.00	%	$	562,800	10.00	%
Glacier Bank	1,023,669		18.25	%	448,739		8.00	%	560,924		10.00	%
Tier 1 capital (to risk-weighted assets)
Consolidated	$	994,197	17.67	%	$	225,120	4.00	%	$	337,680	6.00	%
Glacier Bank	952,815		16.99	%	224,370		4.00	%	336,554		6.00	%
Tier 1 capital (to average assets)
Consolidated	$	994,197	12.45	%	$	319,505	4.00	%	N/A		N/A
Glacier Bank	952,815		12.03	%	316,938		4.00	%	$	396,173	5.00	%

__________

N/A - Not applicable

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Stock-based Compensation Plan (Tables)

12 Months Ended

Dec. 31, 2015

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Changes in shares granted for stock options

Changes in shares granted for stock options for the year ended December 31, 2015 are summarized as follows:

	Options		Weighted- Average Exercise Price
Outstanding at December 31, 2014	1,000		$	16.73
Exercised	(1,000	)	16.73
Forfeited or expired	—		—
Outstanding at December 31, 2015	—		—
Exercisable at December 31, 2015	—		—

Activity for restricted stock awards

The following table summarizes the restricted stock award activity for the year ended December 31, 2015:

	Restricted Stock		Weighted- Average Grant Date Fair Value
Non-vested at December 31, 2014	162,053		$	22.04
Granted	133,414		25.35
Vested	(81,294	)	21.66
Forfeited	(8,184	)	24.36
Non-vested at December 31, 2015	205,989		24.24

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Other Expenses (Tables)

12 Months Ended

Dec. 31, 2015

Other Expenses [Abstract]

Schedule of Other Expenses

Other expenses consists of the following:

	Years ended
(Dollars in thousands)	December 31, 2015		December 31, 2014	December 31, 2013
Debit card expenses	$	6,153	5,802	6,131
Consulting and outside services	5,525		4,179	3,243
VIE write-downs, losses and other expenses	4,528		4,231	4,210
Employee expenses	4,034		3,557	2,686
Postage	3,716		3,391	3,302
Checking and operating expenses	3,554		3,517	3,091
Printing and supplies	3,530		3,547	3,112
Telephone	3,353		2,911	2,498
Loan expenses	2,824		2,513	2,444
Accounting and audit fees	1,401		1,393	1,146
ATM expenses	1,082		1,268	1,087
Legal fees	1,082		1,455	1,728
Other	3,983		3,884	4,178
Total other expenses	$	44,765	41,648	38,856

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Federal and State Income Taxes (Tables)

12 Months Ended

Dec. 31, 2015

Income Tax Disclosure [Abstract]

Summary of consolidated income tax expense

The following table is a summary of consolidated income tax expense:

	Years ended
(Dollars in thousands)	December 31, 2015			December 31, 2014	December 31, 2013
Current
Federal	$	28,705		21,860	18,377
State	9,374			8,118	7,007
Total current income tax expense	38,079			29,978	25,384
Deferred 1
Federal	(3,451		)	5,016	3,918
State	(629		)	915	715
Total deferred income tax (benefit) expense	(4,080		)	5,931	4,633
Total income tax expense	$	33,999		35,909	30,017

__________

¹  Includes tax benefit of operating loss carryforwards of $391,000, $0 and $0 for the years ended December 31, 2015, 2014, and 2013, respectively.

Summary of effective tax rate

Combined federal and state income tax expense differs from that computed at the federal statutory corporate tax rate as follows:

	Years ended
	December 31, 2015		December 31, 2014		December 31, 2013
Federal statutory rate	35.0	%	35.0	%	35.0	%
State taxes, net of federal income tax benefit	3.7	%	4.0	%	4.0	%
Tax-exempt interest income	(12.6	)%	(11.5	)%	(12.2	)%
Tax credits	(3.0	)%	(2.8	)%	(3.2	)%
Other, net	(0.5	)%	(0.5	)%	0.3	%
Effective tax rate	22.6	%	24.2	%	23.9	%

Summary of net deferred tax asset

The tax effect of temporary differences which give rise to a significant portion of deferred tax assets and deferred tax liabilities are as follows:

(Dollars in thousands)	December 31, 2015			December 31, 2014
Deferred tax assets
Allowance for loan and lease losses	$	50,123		50,013
Other real estate owned	8,380			8,200
Deferred compensation	8,166			5,024
Interest rate swap agreements	7,554			6,467
Acquisition fair market value adjustments	5,842			5,302
Income tax credits and net operating loss carryforwards	3,590			4,652
Employee benefits	3,165			2,839
Other	5,433			4,290
Total gross deferred tax assets	92,253			86,787
Deferred tax liabilities
Available-for-sale securities	(8,812		)	(17,716	)
Deferred loan costs	(7,427		)	(6,419	)
Intangibles	(6,272		)	(4,290	)
FHLB stock dividends	(4,601		)	(10,342	)
Depreciation of premises and equipment	(2,376		)	(2,358	)
Other	(4,290		)	(3,925	)
Total gross deferred tax liabilities	(33,778		)	(45,050	)
Net deferred tax asset	$	58,475		41,737

Income tax returns jurisdictions and years subject to examination

The following schedule summarizes the years that remain subject to examination as of December 31, 2015:

	Years ended December 31,
Federal	2008, 2009, 2010, 2012, 2013 and 2014
Montana	2012, 2013 and 2014
Idaho	2009, 2010, 2011, 2012, 2013 and 2014
Colorado	2008, 2009, 2010, 2011, 2012, 2013 and 2014
Utah	2012, 2013 and 2014

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Accumulated Other Comprehensive Income (Tables)

12 Months Ended

Dec. 31, 2015

Equity [Abstract]

Activity within Accumulated Other Comprehensive Income, Net of Tax

The following table illustrates the activity within accumulated other comprehensive income by component, net of tax:

(Dollars in thousands)	Gains on Available-For-Sale Securities			(Losses) Gains on Derivatives Used for Cash Flow Hedges		Total
Balance at December 31, 2012	$	58,245		(10,283	)	47,962
Other comprehensive (loss) income before reclassification	(49,943		)	11,443		(38,500	)
Amounts reclassified from accumulated other comprehensive income	183			—		183
Net current period other comprehensive (loss) income	(49,760		)	11,443		(38,317	)
Balance at December 31, 2013	8,485			1,160		9,645
Other comprehensive income (loss) before reclassification	19,335			(11,969	)	7,366
Amounts reclassified from accumulated other comprehensive income	125			608		733
Net current period other comprehensive income (loss)	19,460			(11,361	)	8,099
Balance at December 31, 2014	27,945			(10,201	)	17,744
Other comprehensive loss before reclassification	(13,968		)	(4,823	)	(18,791	)
Amounts reclassified from accumulated other comprehensive income	(42		)	3,078		3,036
Net current period other comprehensive loss	(14,010		)	(1,745	)	(15,755	)
Balance at December 31, 2015	$	13,935		(11,946	)	1,989

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Earnings Per Share (Tables)

12 Months Ended

Dec. 31, 2015

Earnings Per Share [Abstract]

Basic and diluted earnings per share

Basic and diluted earnings per share has been computed based on the following:

	Years ended
(Dollars in thousands, except per share data)	December 31, 2015		December 31, 2014	December 31, 2013
Net income available to common stockholders, basic and diluted	$	116,127	112,755	95,644
Average outstanding shares - basic	75,542,455		74,641,957	73,191,713
Add: dilutive stock options and awards	53,126		45,358	68,565
Average outstanding shares - diluted	75,595,581		74,687,315	73,260,278
Basic earnings per share	$	1.54	1.51	1.31
Diluted earnings per share	$	1.54	1.51	1.31

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Parent Holding Company Information (Condensed) (Tables)

12 Months Ended

Dec. 31, 2015

Condensed Financial Information of Parent Company Only Disclosure [Abstract]

Condensed Statements of Financial Condition

Condensed Statements of Financial Condition

(Dollars in thousands)	December 31, 2015		December 31, 2014
Assets
Cash on hand and in banks	$	1,854	4,019
Interest bearing cash deposits	46,808		51,127
Cash and cash equivalents	48,662		55,146
Investment securities, available-for-sale	65		91
Other assets	11,553		8,511
Investment in subsidiaries	1,175,844		1,121,937
Total assets	$	1,236,124	1,185,685
Liabilities and Stockholders’ Equity
Dividends payable	$	22,893	22,557
Subordinated debentures	125,848		125,705
Other liabilities	10,733		9,376
Total liabilities	159,474		157,638
Common stock	761		750
Paid-in capital	736,368		708,356
Retained earnings	337,532		301,197
Accumulated other comprehensive income	1,989		17,744
Total stockholders’ equity	1,076,650		1,028,047
Total liabilities and stockholders’ equity	$	1,236,124	1,185,685

Condensed Statements of Operations and Comprehensive Income

Condensed Statements of Operations and Comprehensive Income

	Years ended
(Dollars in thousands)	December 31, 2015		December 31, 2014	December 31, 2013
Income
Dividends from subsidiaries	$	109,000	78,500	65,445
Loss on sale of investments	—		—	(3,248	)
Other income	196		199	966
Intercompany charges for services	10,562		9,283	7,387
Total income	119,758		87,982	70,550
Expenses
Compensation and employee benefits	13,205		10,773	9,175
Other operating expenses	7,313		6,824	6,536
Total expenses	20,518		17,597	15,711
Income before income tax benefit and equity in undistributed net income of subsidiaries	99,240		70,385	54,839
Income tax benefit	3,105		2,919	3,676
Income before equity in undistributed net income of subsidiaries	102,345		73,304	58,515
Equity in undistributed net income of subsidiaries	13,782		39,451	37,129
Net Income	$	116,127	112,755	95,644
Comprehensive Income	$	100,372	120,854	57,327

Condensed Statements of Cash Flows

Condensed Statements of Cash Flows

	Years ended
(Dollars in thousands)	December 31, 2015			December 31, 2014		December 31, 2013
Operating Activities
Net income	$	116,127		112,755		95,644
Adjustments to reconcile net income to net cash provided by operating activities:
Subsidiary income in excess of dividends distributed	(13,782		)	(39,451	)	(37,129	)
Loss on sale of investments	—			—		3,248
Excess tax (benefits) deficiencies from stock-based compensation	(102		)	(138	)	223
Net change in other assets and other liabilities	307			140		2,575
Net cash provided by operating activities	102,550			73,306		64,561
Investing Activities
Sales of available-for-sale securities	—			—		23,990
Maturities, prepayments and calls of available-for-sale securities	—			—		2,571
Changes in investment securities and other stock - intercompany	—			—		(946	)
Net addition of premises and equipment	(1,405		)	(179	)	(603	)
Net sale (purchase) of non-marketable equity securities	22			(667	)	—
Equity contributions to subsidiaries	(28,457		)	(18,115	)	(11,336	)
Net cash (used in) provided by investing activities	(29,840		)	(18,961	)	13,676
Financing Activities
Net increase in other borrowed funds	143			143		144
Cash dividends paid	(79,456		)	(50,944	)	(44,232	)
Excess tax benefits (deficiencies) from stock-based compensation	102			138		(223	)
Stock-based compensation activity	17			785		4,326
Net cash used in financing activities	(79,194		)	(49,878	)	(39,985	)
Net (decrease) increase in cash and cash equivalents	(6,484		)	4,467		38,252
Cash and cash equivalents at beginning of year	55,146			50,679		12,427
Cash and cash equivalents at end of year	$	48,662		55,146		50,679

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Unaudited Quarterly Financial Data (Tables)

12 Months Ended

Dec. 31, 2015

Quarterly Financial Information Disclosure [Abstract]

Summarized unaudited quarterly financial data

Summarized unaudited quarterly financial data is as follows:

	Quarters ended 2015
(Dollars in thousands, except per share data)	March 31		June 30	September 30	December 31
Interest income	$	77,486	78,617	80,367	83,211
Interest expense	7,382		7,369	7,309	7,215
Net interest income	70,104		71,248	73,058	75,996
Provision for loan losses	765		282	826	411
Net interest income after provision for loan losses	69,339		70,966	72,232	75,585
Non-interest income	22,693		25,802	25,799	24,467
Non-interest expense	55,497		59,945	59,112	62,203
Income before income taxes	36,535		36,823	38,919	37,849
Federal and state income tax expense	8,865		7,488	9,305	8,341
Net income	$	27,670	29,335	29,614	29,508
Basic earnings per share	$	0.37	0.39	0.39	0.39
Diluted earnings per share	$	0.37	0.39	0.39	0.39

	Quarters ended 2014
(Dollars in thousands, except per share data)	March 31		June 30	September 30	December 31
Interest income	$	74,087	73,963	75,690	76,179
Interest expense	6,640		6,528	6,430	7,368
Net interest income	67,447		67,435	69,260	68,811
Provision for loan losses	1,122		239	360	191
Net interest income after provision for loan losses	66,325		67,196	68,900	68,620
Non-interest income	19,388		22,504	24,432	23,978
Non-interest expense	50,070		52,673	54,238	55,698
Income before income taxes	35,643		37,027	39,094	36,900
Federal and state income tax expense	8,913		8,350	9,800	8,846
Net income	$	26,730	28,677	29,294	28,054
Basic earnings per share	$	0.36	0.38	0.40	0.37
Diluted earnings per share	$	0.36	0.38	0.40	0.37

XML

Fair Value of Assets and Liabilities (Tables)

12 Months Ended

Dec. 31, 2015

Fair Value Disclosures [Abstract]

Fair value measurement of assets and liabilities measured at fair value on a recurring basis

The following tables disclose the fair value measurement of assets and liabilities measured at fair value on a recurring basis:

			Fair Value Measurements At the End of the Reporting Period Using
(Dollars in thousands)	Fair Value December 31, 2015		Quoted Prices in Active  Markets for Identical Assets (Level 1)	Significant Other Observable Inputs (Level 2)	Significant Unobservable Inputs (Level 3)
Investment securities, available-for-sale
U.S. government and federal agency	$	47,451	—	47,451	—
U.S. government sponsored enterprises	93,167		—	93,167	—
State and local governments	885,019		—	885,019	—
Corporate bonds	384,163		—	384,163	—
Residential mortgage-backed securities	1,200,960		—	1,200,960	—
Total assets measured at fair value on a recurring basis	$	2,610,760	—	2,610,760	—
Interest rate swaps	$	19,499	—	19,499	—
Total liabilities measured at fair value on a recurring basis	$	19,499	—	19,499	—

			Fair Value Measurements At the End of the Reporting Period Using
(Dollars in thousands)	Fair Value December 31, 2014		Quoted Prices in Active  Markets for Identical Assets (Level 1)	Significant Other Observable Inputs (Level 2)	Significant Unobservable Inputs (Level 3)
Investment securities, available-for-sale
U.S. government and federal agency	$	44	—	44	—
U.S. government sponsored enterprises	21,945		—	21,945	—
State and local governments	997,969		—	997,969	—
Corporate bonds	314,854		—	314,854	—
Residential mortgage-backed securities	1,052,616		—	1,052,616	—
Total assets measured at fair value on a recurring basis	$	2,387,428	—	2,387,428	—
Interest rate swaps	$	16,668	—	16,668	—
Total liabilities measured at fair value on a recurring basis	$	16,668	—	16,668	—

Fair value measurement of assets measured at fair value on a non-recurring basis

The following tables disclose the fair value measurement of assets with a recorded change during the period resulting from re-measuring the assets at fair value on a non-recurring basis:

			Fair Value Measurements At the End of the Reporting Period Using
(Dollars in thousands)	Fair Value December 31, 2015		Quoted Prices in Active  Markets for Identical Assets (Level 1)	Significant Other Observable Inputs (Level 2)	Significant Unobservable Inputs (Level 3)
Other real estate owned	$	7,609	—	—	7,609
Collateral-dependent impaired loans, net of ALLL	12,938		—	—	12,938
Total assets measured at fair value on a non-recurring basis	$	20,547	—	—	20,547

			Fair Value Measurements At the End of the Reporting Period Using
(Dollars in thousands)	Fair Value December 31, 2014		Quoted Prices in Active  Markets for Identical Assets (Level 1)	Significant Other Observable Inputs (Level 2)	Significant Unobservable Inputs (Level 3)
Other real estate owned	$	3,000	—	—	3,000
Collateral-dependent impaired loans, net of ALLL	15,480		—	—	15,480
Total assets measured at fair value on a non-recurring basis	$	18,480	—	—	18,480

Quantitative information about assets measured at fair value on a non-recurring basis for which Level 3 inputs were used

The following tables present additional quantitative information about assets measured at fair value on a non-recurring basis and for which the Company has utilized Level 3 inputs to determine fair value:

	Fair Value		Quantitative Information about Level 3 Fair Value Measurements
(Dollars in thousands)	December 31, 2015		Valuation Technique	Unobservable Input	Range (Weighted- Average) 1
Other real estate owned	$	4,067	Sales comparison approach	Selling costs	7.0% - 10.0% (7.9%)
	3,542		Combined approach	Selling costs	8.0% - 8.0% (8.0%)
	$	7,609
Collateral-dependent impaired loans, net of ALLL	$	162	Cost approach	Selling costs	0.0% - 20.0% (6.1%)
	9,465		Sales comparison approach	Selling costs	8.0% - 20.0% (8.9%)
				Adjustment to comparables	0.0% - 5.0% (0.0%)
	3,311		Combined approach	Selling costs	10.0% - 10.0% (10.0%)
				Adjustment to comparables	20.0% - 20.0% (20.0%)
	$	12,938

	Fair Value		Quantitative Information about Level 3 Fair Value Measurements
(Dollars in thousands)	December 31, 2014		Valuation Technique	Unobservable Input	Range (Weighted- Average) 1
Other real estate owned	$	2,393	Sales comparison approach	Selling costs	0.0% - 10.0% (5.8%)
				Adjustment to comparables	0.0% - 7.0% (0.5%)
	607		Combined approach	Selling costs	10.0% - 10.0% (10.0%)
				Discount rate	10.0% - 10.0% (10.0%)
	$	3,000
Collateral-dependent impaired loans, net of ALLL	$	6	Cost approach	Selling costs	7.0% - 7.0% (7.0%)
	5,335		Income approach	Selling costs	8.0% - 10.0% (8.5%)
				Discount rate	8.3% - 12.0% (9.1%)
	6,330		Sales comparison approach	Selling costs	0.0% - 10.0% (8.3%)
				Adjustment to comparables	0.0% - 30.0% (3.5%)
	3,809		Combined approach	Selling costs	8.0% - 10.0% (9.2%)
				Adjustment to comparables	10.0% - 20.0% (16.2%)
	$	15,480

__________

¹ The range for selling costs and adjustments to comparables indicate reductions to the fair value.

Carrying amounts and estimated fair values of financial instruments

The following tables present the carrying amounts, estimated fair values and the level within the fair value hierarchy of the Company’s financial instruments:

			Fair Value Measurements At the End of the Reporting Period Using
(Dollars in thousands)	Carrying Amount December 31, 2015		Quoted Prices in Active Markets for Identical Assets (Level 1)	Significant Other Observable Inputs (Level 2)	Significant Unobservable Inputs (Level 3)
Financial assets
Cash and cash equivalents	$	193,253	193,253	—	—
Investment securities, available-for-sale	2,610,760		—	2,610,760	—
Investment securities, held-to-maturity	702,072		—	729,513	—
Loans held for sale	56,514		56,514	—	—
Loans receivable, net of ALLL	4,948,984		—	4,851,934	132,649
Accrued interest receivable	44,524		44,524	—	—
Non-marketable equity securities	27,495		—	27,495	—
Total financial assets	$	8,583,602	294,291	8,219,702	132,649
Financial liabilities
Deposits	$	6,945,008	5,654,638	1,293,506	—
FHLB advances	394,131		—	401,530	—
Repurchase agreements and other borrowed funds	430,016		—	430,016	—
Subordinated debentures	125,848		—	81,840	—
Accrued interest payable	3,517		3,517	—	—
Interest rate swaps	19,499		—	19,499	—
Total financial liabilities	$	7,918,019	5,658,155	2,226,391	—

			Fair Value Measurements At the End of the Reporting Period Using
(Dollars in thousands)	Carrying Amount December 31, 2014		Quoted Prices in Active  Markets for Identical Assets (Level 1)	Significant Other Observable Inputs (Level 2)	Significant Unobservable Inputs (Level 3)
Financial assets
Cash and cash equivalents	$	442,409	442,409	—	—
Investment securities, available-for-sale	2,387,428		—	2,387,428	—
Investment securities, held-to-maturity	520,997		—	550,946	—
Loans held for sale	46,726		46,726	—	—
Loans receivable, net of ALLL	4,358,342		—	4,288,417	149,769
Accrued interest receivable	40,587		40,587	—	—
Non-marketable equity securities	52,868		—	52,868	—
Total financial assets	$	7,849,357	529,722	7,279,659	149,769
Financial liabilities
Deposits	$	6,345,212	4,928,771	1,421,234	—
FHLB advances	296,944		—	312,363	—
Repurchase agreements and other borrowed funds	404,418		—	404,418	—
Subordinated debentures	125,705		—	76,711	—
Accrued interest payable	4,155		4,155	—	—
Interest rate swaps	16,668		—	16,668	—
Total financial liabilities	$	7,193,102	4,932,926	2,231,394	—

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Contingencies and Commitments (Tables)

12 Months Ended

Dec. 31, 2015

Commitments and Contingencies Disclosure [Abstract]

Outstanding commitments

The Company had the following outstanding commitments:

(Dollars in thousands)	December 31, 2015		December 31, 2014
Commitments to extend credit	$	1,240,923	960,180
Letters of credit	22,415		16,531
Total outstanding commitments	$	1,263,338	976,711

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Mergers and Acquisitions (Tables)

12 Months Ended

Dec. 31, 2015

Business Combinations [Abstract]

Consideration transferred, identifiable net assets acquired and resulting bargain purchase gain or goodwill

The following table discloses the calculation of the fair value of the consideration transferred, the total identifiable net assets acquired and the resulting goodwill or bargain purchase gain arising from the Cañon, CB and FNBR acquisitions:

	Cañon		CB	FNBR
(Dollars in thousands)	October 31, 2015		February 28, 2015	August 31, 2014
Fair value of consideration transferred
Fair value of Company shares issued, net of equity issuance costs	$	15,163	10,776	15,127
Cash consideration for outstanding shares	16,145		12,219	16,690
Contingent consideration	—		—	—
Total fair value of consideration transferred	31,308		22,995	31,817
Recognized amounts of identifiable assets acquired and liabilities assumed
Identifiable assets acquired
Cash and cash equivalents	17,860		31,931	14,578
Investment securities	68,486		42,350	157,018
Loans receivable	159,759		84,689	137,488
Core deposit intangible	4,532		2,087	4,199
Accrued income and other assets	9,689		13,580	35,884
Total identifiable assets acquired	260,326		174,637	349,167
Liabilities assumed
Deposits	237,326		146,820	309,641
FHLB advances and repurchase agreements	—		3,292	—
Accrued expenses and other liabilities	1,487		2,667	7,029
Total liabilities assumed	238,813		152,779	316,670
Total identifiable net assets	21,513		21,858	32,497
Goodwill (bargain purchase gain) recognized	$	9,795	1,137	(680	)

Unaudited Pro Forma Summary of the Company as if the Acquisitions had Occurred at the Beginning of the Period

The following unaudited pro forma summary presents consolidated information of the Company as if the Cañon and CB acquisitions had occurred on January 1, 2014:

	Years ended
(Dollars in thousands)	December 31, 2015		December 31, 2014
Net interest income and non-interest income	$	401,140	383,387
Net income	115,613		115,899

The following unaudited pro forma summary presents consolidated information of the Company as if the FNBR acquisition had occurred on January 1, 2013:

	Years ended
(Dollars in thousands)	December 31, 2014		December 31, 2013
Net interest income and non-interest income	$	371,772	340,393
Net income	113,364		99,275

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Nature of Operations and Summary of Significant Accounting Policies (Details Textual)	12 Months Ended
	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)
Nature of Operations and Summary of Significant Accounting Policies
Number of Bank Divisions	13
Number of Operating Segments	1
Maximum Period of Original Maturity to be Included in Cash and Cash Equivalents	3 months
Federal Reserve Balance or Cash on Hand Required	$ 34,309,000
Minimum Period Past Due to Consider Loans as Delinquent	30 days
Minimum Period Past Due to Consider Loans as Non Accrual	90 days
Number of Quarters used to Determine Historical Loss Experience	12
Minimum Number Days Delinquent to Charge off Consumer Loans	120 days
Long-lived assets considered impaired	$ 0	$ 0
Maximum period up to which purchase price of business is allocated to assets acquired and liabilities assumed	1 year
Number of Reporting Units Subsequent to Aggregation for Goodwill Assessment	1
Bank Owned Life Insurance	$ 49,534,000	$ 46,030,000
Percentage of likelihood for term more likely than not	50.00%
Number of Steps to Achieve Core Revenue Recognition Principal	5
Minimum Range
Nature of Operations and Summary of Significant Accounting Policies
Number of years for home equity loan origination term	10 years
Minimum Range | Office Buildings
Nature of Operations and Summary of Significant Accounting Policies
Useful life of premises and equipment	15 years
Minimum Range | Furniture, fixtures and equipment
Nature of Operations and Summary of Significant Accounting Policies
Useful life of premises and equipment	3 years
Maximum Range
Nature of Operations and Summary of Significant Accounting Policies
Number of years for home equity loan origination term	15 years
Maximum Range | Office Buildings
Nature of Operations and Summary of Significant Accounting Policies
Useful life of premises and equipment	40 years
Maximum Range | Furniture, fixtures and equipment
Nature of Operations and Summary of Significant Accounting Policies
Useful life of premises and equipment	10 years

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Amortized Cost, Gross Unrealized Gains and Losses and Fair Value of Investment Securities (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Available-for-sale
Amortized Cost	$ 2,588,013	$ 2,341,767
Gross Unrealized Gains	41,065	53,468
Gross Unrealized Losses	(18,318)	(7,807)
Fair Value	2,610,760	2,387,428
Held-to-maturity
Amortized Cost	702,072	520,997
Gross Unrealized Gains	31,863	32,925
Gross Unrealized Losses	(4,422)	(2,976)
Fair Value	729,513	550,946
Total
Amortized Cost	3,290,085	2,862,764
Gross Unrealized Gains	72,928	86,393
Gross Unrealized Losses	(22,740)	(10,783)
Fair Value	3,340,273	2,938,374
U.S. government and federal agency
Available-for-sale
Amortized Cost	47,868	44
Gross Unrealized Gains	15	0
Gross Unrealized Losses	(432)	0
Fair Value	47,451	44
U.S. government sponsored enterprises
Available-for-sale
Amortized Cost	93,230	21,916
Gross Unrealized Gains	100	31
Gross Unrealized Losses	(163)	(2)
Fair Value	93,167	21,945
State and local governments
Available-for-sale
Amortized Cost	856,738	962,365
Gross Unrealized Gains	34,159	40,173
Gross Unrealized Losses	(5,878)	(4,569)
Fair Value	885,019	997,969
Held-to-maturity
Amortized Cost	702,072	520,997
Gross Unrealized Gains	31,863	32,925
Gross Unrealized Losses	(4,422)	(2,976)
Fair Value	729,513	550,946
Corporate bonds
Available-for-sale
Amortized Cost	386,629	313,545
Gross Unrealized Gains	611	2,059
Gross Unrealized Losses	(3,077)	(750)
Fair Value	384,163	314,854
Residential mortgage-backed securities
Available-for-sale
Amortized Cost	1,203,548	1,043,897
Gross Unrealized Gains	6,180	11,205
Gross Unrealized Losses	(8,768)	(2,486)
Fair Value	$ 1,200,960	$ 1,052,616

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Investment Securities Investment Securities Maturity Schedule (Details) - USD ($) $ in Thousands		Dec. 31, 2015	Dec. 31, 2014
Available-for-Sale, Amortized Cost
Due within one year		$ 140,703
Due after one year through five years		486,235
Due after five years through ten years		128,158
Due after ten years		629,369
Total before residential mortgage-backed securities		1,384,465
Total		2,588,013	$ 2,341,767
Available-for-Sale, Fair Value
Due with one year		141,230
Due after one year through five years		484,467
Due after five years through ten years		131,883
Due after ten years		652,220
Total before residential mortgage-backed securities		1,409,800
Total		2,610,760	2,387,428
Held-to-Maturity, Amortized Cost
Due within one year		0
Due after one year through five years		0
Due after five years through ten years		25,073
Due after ten years		676,999
Total before residential mortgage-backed securities		702,072
Amortized Cost		702,072	520,997
Held-to-Maturity, Fair Value
Due within one year		0
Due after one year through five years		0
Due after five years through ten years		25,605
Due after ten years		703,908
Total before residential mortgage-backed securities		729,513
Total		729,513	550,946
Residential mortgage-backed securities
Available-for-Sale, Amortized Cost
Residential mortgage-backed securities	[1]	1,203,548
Total		1,203,548	1,043,897
Available-for-Sale, Fair Value
Residential mortgage-backed securities	[1]	1,200,960
Total		1,200,960	$ 1,052,616
Held-to-Maturity, Amortized Cost
Residential mortgage-backed securities	[1]	0
Held-to-Maturity, Fair Value
Residential mortgage-backed securities	[1]	$ 0

[1] Residential mortgage-backed securities, which have prepayment provisions, are not assigned to maturity categories due to fluctuations in their prepayment speeds.

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Gain or Loss on Sale of Investments (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Available-for-sale
Proceeds from sales and calls of investment securities		$ 167,660	$ 219,849	$ 181,971
Gross realized gains	[1]	1,877	501	3,723
Gross realized losses	[1]	(1,808)	(705)	(4,022)
Held-to-maturity
Proceeds from calls of investment securities		20,997	8,930	0
Gross realized gains	[1]	50	22	0
Gross realized losses	[1]	$ (100)	$ (6)	$ 0

[1] The gain or loss on the sale or call of each investment security is determined by the specific identification method.

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Investments with an Unrealized Loss Position (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Available-for-sale, Fair Value
Less than 12 Months	$ 1,163,595	$ 358,126
12 Months or More	182,928	202,027
Total	1,346,523	560,153
Available-for-sale, Unrealized Loss
Less than 12 Months	(11,262)	(2,746)
12 Months or Longer	(7,056)	(5,061)
Total	(18,318)	(7,807)
Held-to-maturity, Fair Value
Less than 12 Months	42,322	18,643
12 Months or More	81,709	76,761
Total	124,031	95,404
Held-to-maturity, Unrealized Loss
Less than 12 Months	(594)	(624)
12 Months or More	(3,828)	(2,352)
Total	(4,422)	(2,976)
U.S. government and federal agency
Available-for-sale, Fair Value
Less than 12 Months	42,493	0
12 Months or More	2	3
Total	42,495	3
Available-for-sale, Unrealized Loss
Less than 12 Months	(432)	0
12 Months or Longer	0	0
Total	(432)	0
U.S. government sponsored enterprises
Available-for-sale, Fair Value
Less than 12 Months	60,010	13,793
12 Months or More	0	0
Total	60,010	13,793
Available-for-sale, Unrealized Loss
Less than 12 Months	(163)	(2)
12 Months or Longer	0	0
Total	(163)	(2)
State and local governments
Available-for-sale, Fair Value
Less than 12 Months	102,422	91,082
12 Months or More	115,943	115,927
Total	218,365	207,009
Available-for-sale, Unrealized Loss
Less than 12 Months	(1,629)	(1,273)
12 Months or Longer	(4,249)	(3,296)
Total	(5,878)	(4,569)
Held-to-maturity, Fair Value
Less than 12 Months	42,322	18,643
12 Months or More	81,709	76,761
Total	124,031	95,404
Held-to-maturity, Unrealized Loss
Less than 12 Months	(594)	(624)
12 Months or More	(3,828)	(2,352)
Total	(4,422)	(2,976)
Corporate bonds
Available-for-sale, Fair Value
Less than 12 Months	228,258	60,289
12 Months or More	13,962	7,874
Total	242,220	68,163
Available-for-sale, Unrealized Loss
Less than 12 Months	(1,812)	(545)
12 Months or Longer	(1,265)	(205)
Total	(3,077)	(750)
Residential mortgage-backed securities
Available-for-sale, Fair Value
Less than 12 Months	730,412	192,962
12 Months or More	53,021	78,223
Total	783,433	271,185
Available-for-sale, Unrealized Loss
Less than 12 Months	(7,226)	(926)
12 Months or Longer	(1,542)	(1,560)
Total	$ (8,768)	$ (2,486)

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Investment Securities (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Investments, Debt and Equity Securities [Abstract]
Investment securities pledged as collateral	$ 1,824,819,000	$ 1,673,263,000
Other-than-temporary impairment on investment securities	$ 0	$ 0

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Loans Receivable, Net Summary of Loans Receivable (Details) - USD ($)		Dec. 31, 2015	Dec. 31, 2014
Summary of Loans Receivable
Loans receivable	[1]	$ 5,078,681,000	$ 4,488,095,000
Allowance for loan and lease losses		(129,697,000)	(129,753,000)
Loans receivable, net		$ 4,948,984,000	$ 4,358,342,000
Weighted Average Interest Rate on Loans		4.84%	4.86%
Net deferred fees, costs, premiums, and discounts included in loans receivable		$ 15,529,000	$ 13,710,000
Residential Real Estate
Summary of Loans Receivable
Loans receivable		688,912,000	611,463,000
Allowance for loan and lease losses		(14,427,000)	(14,680,000)
Commercial Real Estate
Summary of Loans Receivable
Loans receivable		2,633,953,000	2,337,548,000
Allowance for loan and lease losses		(67,877,000)	(67,799,000)
Other Commercial
Summary of Loans Receivable
Loans receivable		1,099,564,000	925,900,000
Allowance for loan and lease losses		(32,525,000)	(30,891,000)
Total Commercial
Summary of Loans Receivable
Loans receivable		3,733,517,000	3,263,448,000
Home Equity
Summary of Loans Receivable
Loans receivable		420,901,000	394,670,000
Allowance for loan and lease losses		(8,998,000)	(9,963,000)
Other Consumer
Summary of Loans Receivable
Loans receivable		235,351,000	218,514,000
Allowance for loan and lease losses		(5,870,000)	(6,420,000)
Total Consumer and Other
Summary of Loans Receivable
Loans receivable		$ 656,252,000	$ 613,184,000

[1] Includes net deferred fees, costs, premiums and discounts of $15,529,000 and $13,710,000 at December 31, 2015 and 2014, respectively.

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ALLL Activity (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Allowance for loan and lease losses
Balance at beginning of period				$ 129,753				$ 130,351	$ 129,753	$ 130,351	$ 130,854
Provision for loan losses	$ 411	$ 826	$ 282	765	$ 191	$ 360	$ 239	1,122	2,284	1,912	6,887
Charge-offs									(7,002)	(7,603)	(13,643)
Recoveries									4,662	5,093	6,253
Balance at end of period	129,697				129,753				129,697	129,753	130,351
Residential Real Estate
Allowance for loan and lease losses
Balance at beginning of period				14,680				14,067	14,680	14,067	15,482
Provision for loan losses									640	716	(921)
Charge-offs									(985)	(431)	(793)
Recoveries									92	328	299
Balance at end of period	14,427				14,680				14,427	14,680	14,067
Commercial Real Estate
Allowance for loan and lease losses
Balance at beginning of period				67,799				70,332	67,799	70,332	74,398
Provision for loan losses									(696)	(2,877)	(3,670)
Charge-offs									(1,920)	(1,802)	(3,736)
Recoveries									2,694	2,146	3,340
Balance at end of period	67,877				67,799				67,877	67,799	70,332
Other Commercial
Allowance for loan and lease losses
Balance at beginning of period				30,891				28,630	30,891	28,630	21,567
Provision for loan losses									3,030	3,708	10,271
Charge-offs									(2,322)	(3,058)	(4,671)
Recoveries									926	1,611	1,463
Balance at end of period	32,525				30,891				32,525	30,891	28,630
Home Equity
Allowance for loan and lease losses
Balance at beginning of period				9,963				9,299	9,963	9,299	10,659
Provision for loan losses									(480)	1,254	868
Charge-offs									(809)	(1,038)	(2,594)
Recoveries									324	448	366
Balance at end of period	8,998				9,963				8,998	9,963	9,299
Other Consumer
Allowance for loan and lease losses
Balance at beginning of period				$ 6,420				$ 8,023	6,420	8,023	8,748
Provision for loan losses									(210)	(889)	339
Charge-offs									(966)	(1,274)	(1,849)
Recoveries									626	560	785
Balance at end of period	$ 5,870				$ 6,420				$ 5,870	$ 6,420	$ 8,023

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Loans Receivable, Net ALLL and Loans Receivable Summary (Details) - USD ($) $ in Thousands		Dec. 31, 2015	Dec. 31, 2014
Allowance for Loan and Lease Losses and Loans Receivable
Individually evaluated for impairment		$ 8,124	$ 11,597
Collectively evaluated for impairment		121,573	118,156
Total allowance for loan and lease losses		129,697	129,753
Individually evaluated for impairment		140,773	161,366
Collectively evaluated for impairment		4,937,908	4,326,729
Total loans receivable	[1]	5,078,681	4,488,095
Residential Real Estate
Allowance for Loan and Lease Losses and Loans Receivable
Individually evaluated for impairment		782	853
Collectively evaluated for impairment		13,645	13,827
Total allowance for loan and lease losses		14,427	14,680
Individually evaluated for impairment		20,767	19,576
Collectively evaluated for impairment		668,145	591,887
Total loans receivable		688,912	611,463
Commercial Real Estate
Allowance for Loan and Lease Losses and Loans Receivable
Individually evaluated for impairment		1,629	2,967
Collectively evaluated for impairment		66,248	64,832
Total allowance for loan and lease losses		67,877	67,799
Individually evaluated for impairment		85,845	105,264
Collectively evaluated for impairment		2,548,108	2,232,284
Total loans receivable		2,633,953	2,337,548
Other Commercial
Allowance for Loan and Lease Losses and Loans Receivable
Individually evaluated for impairment		5,277	6,836
Collectively evaluated for impairment		27,248	24,055
Total allowance for loan and lease losses		32,525	30,891
Individually evaluated for impairment		23,874	25,321
Collectively evaluated for impairment		1,075,690	900,579
Total loans receivable		1,099,564	925,900
Home Equity
Allowance for Loan and Lease Losses and Loans Receivable
Individually evaluated for impairment		64	447
Collectively evaluated for impairment		8,934	9,516
Total allowance for loan and lease losses		8,998	9,963
Individually evaluated for impairment		6,493	6,901
Collectively evaluated for impairment		414,408	387,769
Total loans receivable		420,901	394,670
Other Consumer
Allowance for Loan and Lease Losses and Loans Receivable
Individually evaluated for impairment		372	494
Collectively evaluated for impairment		5,498	5,926
Total allowance for loan and lease losses		5,870	6,420
Individually evaluated for impairment		3,794	4,304
Collectively evaluated for impairment		231,557	214,210
Total loans receivable		$ 235,351	$ 218,514

[1] Includes net deferred fees, costs, premiums and discounts of $15,529,000 and $13,710,000 at December 31, 2015 and 2014, respectively.

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Impaired Loans (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Summary of the impaired loans by portfolio class of loans
Loans with a Specific Valuation Allowance, Recorded Balance	$ 34,683	$ 45,688
Loans with a Specific Valuation Allowance, Unpaid Principal Balance	36,157	48,477
Specific valuation allowance	8,124	11,597
Loans with a Specific Valuation Allowance, Average Balance	36,176	53,339
Loans without a Specific Valuation Allowance, Recorded Balance	106,090	115,678
Loans without a Specific Valuation Allowance, Unpaid Principal Balance	132,718	145,038
Loans without a Specific Valuation Allowance, Average Balance	116,356	128,645
Recorded balance	140,773	161,366
Unpaid principal balance	168,875	193,515
Average balance	152,532	181,984
Residential Real Estate
Summary of the impaired loans by portfolio class of loans
Loans with a Specific Valuation Allowance, Recorded Balance	8,253	4,110
Loans with a Specific Valuation Allowance, Unpaid Principal Balance	9,198	4,276
Specific valuation allowance	782	853
Loans with a Specific Valuation Allowance, Average Balance	6,393	5,480
Loans without a Specific Valuation Allowance, Recorded Balance	12,514	15,466
Loans without a Specific Valuation Allowance, Unpaid Principal Balance	13,969	16,683
Loans without a Specific Valuation Allowance, Average Balance	13,615	15,580
Recorded balance	20,767	19,576
Unpaid principal balance	23,167	20,959
Average balance	20,008	21,060
Commercial Real Estate
Summary of the impaired loans by portfolio class of loans
Loans with a Specific Valuation Allowance, Recorded Balance	12,554	27,155
Loans with a Specific Valuation Allowance, Unpaid Principal Balance	12,581	28,048
Specific valuation allowance	1,629	2,967
Loans with a Specific Valuation Allowance, Average Balance	15,827	24,519
Loans without a Specific Valuation Allowance, Recorded Balance	73,291	78,109
Loans without a Specific Valuation Allowance, Unpaid Principal Balance	94,028	100,266
Loans without a Specific Valuation Allowance, Average Balance	78,684	89,015
Recorded balance	85,845	105,264
Unpaid principal balance	106,609	128,314
Average balance	94,511	113,534
Other Commercial
Summary of the impaired loans by portfolio class of loans
Loans with a Specific Valuation Allowance, Recorded Balance	11,923	11,377
Loans with a Specific Valuation Allowance, Unpaid Principal Balance	12,335	12,461
Specific valuation allowance	5,277	6,836
Loans with a Specific Valuation Allowance, Average Balance	11,768	19,874
Loans without a Specific Valuation Allowance, Recorded Balance	11,951	13,944
Loans without a Specific Valuation Allowance, Unpaid Principal Balance	15,539	19,117
Loans without a Specific Valuation Allowance, Average Balance	15,479	14,024
Recorded balance	23,874	25,321
Unpaid principal balance	27,874	31,578
Average balance	27,247	33,898
Home Equity
Summary of the impaired loans by portfolio class of loans
Loans with a Specific Valuation Allowance, Recorded Balance	102	1,214
Loans with a Specific Valuation Allowance, Unpaid Principal Balance	109	1,336
Specific valuation allowance	64	447
Loans with a Specific Valuation Allowance, Average Balance	426	1,039
Loans without a Specific Valuation Allowance, Recorded Balance	6,391	5,687
Loans without a Specific Valuation Allowance, Unpaid Principal Balance	7,153	6,403
Loans without a Specific Valuation Allowance, Average Balance	6,350	7,163
Recorded balance	6,493	6,901
Unpaid principal balance	7,262	7,739
Average balance	6,776	8,202
Other Consumer
Summary of the impaired loans by portfolio class of loans
Loans with a Specific Valuation Allowance, Recorded Balance	1,851	1,832
Loans with a Specific Valuation Allowance, Unpaid Principal Balance	1,934	2,356
Specific valuation allowance	372	494
Loans with a Specific Valuation Allowance, Average Balance	1,762	2,427
Loans without a Specific Valuation Allowance, Recorded Balance	1,943	2,472
Loans without a Specific Valuation Allowance, Unpaid Principal Balance	2,029	2,569
Loans without a Specific Valuation Allowance, Average Balance	2,228	2,863
Recorded balance	3,794	4,304
Unpaid principal balance	3,963	4,925
Average balance	$ 3,990	$ 5,290

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Loans Receivable Aging Analysis (Details) - USD ($) $ in Thousands		Dec. 31, 2015	Dec. 31, 2014
Loan portfolio aging analysis
Non-accrual loans		$ 51,133	$ 61,882
Total past due and non-accrual loans		72,677	88,000
Current loans receivable		5,006,004	4,400,095
Total loans receivable	[1]	5,078,681	4,488,095
Accruing loans 30 to 59 days past due
Loan portfolio aging analysis
Past due loans		15,801	19,139
Accruing loans 60 to 89 days past due
Loan portfolio aging analysis
Past due loans		3,612	6,765
Accruing loans 90 days or more past due
Loan portfolio aging analysis
Past due loans		2,131	214
Residential Real Estate
Loan portfolio aging analysis
Non-accrual loans		8,073	6,798
Total past due and non-accrual loans		13,929	12,025
Current loans receivable		674,983	599,438
Total loans receivable		688,912	611,463
Residential Real Estate | Accruing loans 30 to 59 days past due
Loan portfolio aging analysis
Past due loans		4,895	3,506
Residential Real Estate | Accruing loans 60 to 89 days past due
Loan portfolio aging analysis
Past due loans		961	1,686
Residential Real Estate | Accruing loans 90 days or more past due
Loan portfolio aging analysis
Past due loans		0	35
Commercial Real Estate
Loan portfolio aging analysis
Non-accrual loans		28,819	39,717
Total past due and non-accrual loans		35,284	51,265
Current loans receivable		2,598,669	2,286,283
Total loans receivable		2,633,953	2,337,548
Commercial Real Estate | Accruing loans 30 to 59 days past due
Loan portfolio aging analysis
Past due loans		4,393	7,925
Commercial Real Estate | Accruing loans 60 to 89 days past due
Loan portfolio aging analysis
Past due loans		1,841	3,592
Commercial Real Estate | Accruing loans 90 days or more past due
Loan portfolio aging analysis
Past due loans		231	31
Other Commercial
Loan portfolio aging analysis
Non-accrual loans		7,691	8,421
Total past due and non-accrual loans		13,361	14,414
Current loans receivable		1,086,203	911,486
Total loans receivable		1,099,564	925,900
Other Commercial | Accruing loans 30 to 59 days past due
Loan portfolio aging analysis
Past due loans		3,564	5,310
Other Commercial | Accruing loans 60 to 89 days past due
Loan portfolio aging analysis
Past due loans		286	609
Other Commercial | Accruing loans 90 days or more past due
Loan portfolio aging analysis
Past due loans		1,820	74
Home Equity
Loan portfolio aging analysis
Non-accrual loans		6,022	5,969
Total past due and non-accrual loans		7,918	8,039
Current loans receivable		412,983	386,631
Total loans receivable		420,901	394,670
Home Equity | Accruing loans 30 to 59 days past due
Loan portfolio aging analysis
Past due loans		1,601	1,374
Home Equity | Accruing loans 60 to 89 days past due
Loan portfolio aging analysis
Past due loans		280	679
Home Equity | Accruing loans 90 days or more past due
Loan portfolio aging analysis
Past due loans		15	17
Other Consumer
Loan portfolio aging analysis
Non-accrual loans		528	977
Total past due and non-accrual loans		2,185	2,257
Current loans receivable		233,166	216,257
Total loans receivable		235,351	218,514
Other Consumer | Accruing loans 30 to 59 days past due
Loan portfolio aging analysis
Past due loans		1,348	1,024
Other Consumer | Accruing loans 60 to 89 days past due
Loan portfolio aging analysis
Past due loans		244	199
Other Consumer | Accruing loans 90 days or more past due
Loan portfolio aging analysis
Past due loans		$ 65	$ 57

[1] Includes net deferred fees, costs, premiums and discounts of $15,529,000 and $13,710,000 at December 31, 2015 and 2014, respectively.

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Troubled Debt Restructurings (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2015 USD ($) Loan	Dec. 31, 2014 USD ($) Loan	Dec. 31, 2013 USD ($) Loan
Troubled Debt Restructurings
Troubled Debt Restructurings, Number of Loans | Loan	64	51	63
Troubled Debt Restructurings, Pre-Modification Recorded Balance	$ 22,316	$ 37,781	$ 29,046
Troubled Debt Restructurings, Post-Modification Recorded Balance	$ 23,110	$ 37,075	$ 29,359
TDRs that Subsequently Defaulted, Number of Loans | Loan	7	5	5
TDRs that Subsequently Defaulted, Recorded Balance	$ 2,556	$ 4,453	$ 849
Residential Real Estate
Troubled Debt Restructurings
Troubled Debt Restructurings, Number of Loans | Loan	3	0	9
Troubled Debt Restructurings, Pre-Modification Recorded Balance	$ 2,259	$ 0	$ 1,907
Troubled Debt Restructurings, Post-Modification Recorded Balance	$ 2,203	$ 0	$ 2,293
TDRs that Subsequently Defaulted, Number of Loans | Loan	1	0	1
TDRs that Subsequently Defaulted, Recorded Balance	$ 1,947	$ 0	$ 265
Commercial Real Estate
Troubled Debt Restructurings
Troubled Debt Restructurings, Number of Loans | Loan	25	18	21
Troubled Debt Restructurings, Pre-Modification Recorded Balance	$ 8,877	$ 21,760	$ 20,334
Troubled Debt Restructurings, Post-Modification Recorded Balance	$ 9,927	$ 21,803	$ 20,334
TDRs that Subsequently Defaulted, Number of Loans | Loan	1	2	1
TDRs that Subsequently Defaulted, Recorded Balance	$ 78	$ 927	$ 79
Other Commercial
Troubled Debt Restructurings
Troubled Debt Restructurings, Number of Loans | Loan	22	24	23
Troubled Debt Restructurings, Pre-Modification Recorded Balance	$ 10,545	$ 12,522	$ 6,087
Troubled Debt Restructurings, Post-Modification Recorded Balance	$ 10,325	$ 11,884	$ 6,087
TDRs that Subsequently Defaulted, Number of Loans | Loan	4	1	3
TDRs that Subsequently Defaulted, Recorded Balance	$ 529	$ 693	$ 505
Home Equity
Troubled Debt Restructurings
Troubled Debt Restructurings, Number of Loans | Loan	1	6	2
Troubled Debt Restructurings, Pre-Modification Recorded Balance	$ 137	$ 3,385	$ 147
Troubled Debt Restructurings, Post-Modification Recorded Balance	$ 157	$ 3,274	$ 147
TDRs that Subsequently Defaulted, Number of Loans | Loan	0	2	0
TDRs that Subsequently Defaulted, Recorded Balance	$ 0	$ 2,833	$ 0
Other Consumer
Troubled Debt Restructurings
Troubled Debt Restructurings, Number of Loans | Loan	13	3	8
Troubled Debt Restructurings, Pre-Modification Recorded Balance	$ 498	$ 114	$ 571
Troubled Debt Restructurings, Post-Modification Recorded Balance	$ 498	$ 114	$ 498
TDRs that Subsequently Defaulted, Number of Loans | Loan	1	0	0
TDRs that Subsequently Defaulted, Recorded Balance	$ 2	$ 0	$ 0

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Loans Receivable, Net (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Loans Receivable
Number of segments in loan portfolio	3
Percentage of consolidated stockholders equity exceeding which no borrower had outstanding loans or commitments	10.00%
Variable rate loans	$ 3,298,198,000
Fixed rate loans	1,780,483,000
Loan sold and serviced for others	128,499,000	$ 133,768,000	$ 148,376,000
Loans pledged as collateral	2,899,827,000
Aggregate amount of loans outstanding to related parties	57,764,000	55,427,000
New loans to related parties	10,435,000
Repayments of loans by related parties	8,098,000
Interest income that would have been recorded on non-accrual loans	2,471,000	3,005,000	4,122,000
TDR With Pre Modification Loan Balance for Which Oreo Was Received	8,893,000	12,674,000	18,345,000
Consumer mortgage loans secured by residential real estate properties for which formal foreclosure proceedings are in process	3,253,000	698,000
OREO Secured by Residential Real Estate	1,496,000	2,322,000
Additional outstanding commitments on TDRs	2,803,000	4,263,000
Charge-offs on TDRs	$ 1,310,000	$ 1,361,000	$ 1,945,000

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Premises and Equipment, Net of Accumulated Depreciation (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Premises and Equipment, Net of Accumulated Depreciation
Accumulated depreciation	$ (110,696)	$ (99,409)
Premises and equipment, net	194,030	179,175
Land
Premises and Equipment, Net of Accumulated Depreciation
Premises and equipment, gross	30,108	27,605
Office buildings and construction in progress
Premises and Equipment, Net of Accumulated Depreciation
Premises and equipment, gross	187,787	172,544
Furniture, fixtures and equipment
Premises and Equipment, Net of Accumulated Depreciation
Premises and equipment, gross	78,803	70,622
Leasehold improvements
Premises and Equipment, Net of Accumulated Depreciation
Premises and equipment, gross	$ 8,028	$ 7,813

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Premises and Equipment Future Minimum Rental Commitments under Operating and Capital Leases (Details) $ in Thousands	Dec. 31, 2015 USD ($)
Capital Leases
For the Year Ended December 31, 2016	$ 92
For the Year Ended December 31, 2017	92
For the Year Ended December 31, 2018	92
For the Year Ended December 31, 2019	92
For the Year Ended December 31, 2020	92
Thereafter	11
Total minimum lease payments	471
Less: Amount representing interest	64
Present value of minimum lease payments	407
Less: Current portion of obligations under capital leases	72
Long-term portion of obligations under capital leases	335
Operating Leases
For the Year Ended December 31, 2016	2,443
For the Year Ended December 31, 2017	2,132
For the Year Ended December 31, 2018	1,877
For the Year Ended December 31, 2019	1,682
For the Year Ended December 31, 2020	1,160
Thereafter	3,202
Total Minimum Lease Payments	12,496
Total
For the Year Ended December 31, 2016	2,535
For the Year Ended December 31, 2017	2,224
For the Year Ended December 31, 2018	1,969
For the Year Ended December 31, 2019	1,774
For the Year Ended December 31, 2020	1,252
Thereafter	3,213
Total Minimum Lease Payments	$ 12,967

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Premises and Equipment (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Premises and Equipment
Depreciation expense	$ 14,365,000	$ 12,108,000	$ 10,485,000
Total rent expense	3,137,000	2,786,000	2,912,000
Related party rent expense	$ 150,000	$ 146,000	$ 142,000

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Net Carrying Value of Core Deposit Intangibles (Details) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Net Core Deposit Intangibles and Aggregate Amortization Expense
Net carrying value	$ 14,555,000	$ 10,900,000
Aggregate amortization expense	2,964,000	2,811,000	$ 2,401,000
Core Deposits Intangibles
Net Core Deposit Intangibles and Aggregate Amortization Expense
Gross carrying value	38,527,000	32,056,000	27,857,000
Accumulated amortization	(23,972,000)	(21,156,000)	(18,345,000)
Net carrying value	14,555,000	10,900,000	9,512,000
Aggregate amortization expense	2,964,000	2,811,000	2,401,000
Estimated Amortization Expense
For the year ending December 31, 2016	2,923,000
For the year ending December 31, 2017	2,027,000
For the year ending December 31, 2018	1,598,000
For the year ending December 31, 2019	1,512,000
For the year ending December 31, 2020	1,465,000
Core Deposit Intangibles Acquired During the Year
Core Deposit Intangibles Acquired	$ 6,619,000	$ 4,199,000	$ 5,739,000
Core Deposits Intangibles | Weighted Average
Net Core Deposit Intangibles and Aggregate Amortization Expense
Weighted-average amortization period	9 years 8 months

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Changes in the Carrying Value of Goodwill (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Goodwill Roll Forward
Net carrying value at beginning of period	$ 129,706	$ 129,706	$ 106,100
Acquisitions	10,932	0	23,606
Net carrying value at end of period	$ 140,638	$ 129,706	$ 129,706

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Other Intangible Assets and Goodwill Net Carrying Value of Goodwill (Details) - USD ($) $ in Thousands		Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Gross carrying value of goodwill and the accumulated impairment charge
Gross carrying value		$ 180,797	$ 169,865
Accumulated impairment charge	[1]	(40,159)	(40,159)
Net carrying value		$ 140,638	$ 129,706	$ 129,706	$ 106,100

[1] A goodwill impairment charge was recognized in 2011 and was due to high levels of volatility and dislocation in bank stock prices nationwide.

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Variable Interest Entities VIE Carrying Amounts Included in Financial Statements (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
CDE (NMTC)
Carrying amounts of the VIEs' assets and liabilities
Loans receivable	$ 57,126	$ 36,077
Premises and equipment, net	0	0
Accrued interest receivable	117	116
Other assets	887	616
Total assets	58,130	36,809
Other borrowed funds	4,555	4,555
Accrued interest payable	4	4
Other liabilities	139	185
Total liabilities	4,698	4,744
LIHTC
Carrying amounts of the VIEs' assets and liabilities
Loans receivable	0	0
Premises and equipment, net	13,503	13,106
Accrued interest receivable	0	0
Other assets	542	258
Total assets	14,045	13,364
Other borrowed funds	1,640	1,690
Accrued interest payable	5	5
Other liabilities	0	0
Total liabilities	$ 1,645	$ 1,695

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Variable Interest Entities VIE Net Income or Loss and Tax Credits (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
CDE (NMTC)
Consolidated VIEs
VIE loss	$ (1,286)	$ (879)
Federal income tax credits	2,138	1,744
LIHTC
Consolidated VIEs
VIE loss	(974)	(1,082)
Federal income tax credits	$ 1,175	$ 1,270

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Scheduled Maturities of Time Deposits (Details) $ in Thousands	Dec. 31, 2015 USD ($)
Maturities of Time Deposits
For the year ending December 31, 2016	$ 775,227
For the year ending December 31, 2017	149,999
For the year ending December 31, 2018	56,554
For the year ending December 31, 2019	40,696
For the year ending December 31, 2020	36,674
Thereafter	1,500
Total	$ 1,060,650

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Deposits (Details Textual) - USD ($)	Dec. 31, 2015	Dec. 31, 2014
Deposits
FDIC Insurance limit	$ 250,000
Time deposits that meet or exceed FDIC Insurance limit	258,573,000	$ 314,752,000
Overdraft demand deposits reclassified as loans	2,966,000	4,385,000
Deposits with related parties	$ 15,730,000	$ 16,287,000

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Borrowings Summary of Repurchase Agreements (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Securities Sold Under Agreements to Repurchase
Repurchase Agreements	$ 423,414	$ 397,107
Overnight and Continuous
Securities Sold Under Agreements to Repurchase
Repurchase Agreements	420,967
Up to 30 Days
Securities Sold Under Agreements to Repurchase
Repurchase Agreements	2,447
U.S. government sponsored enterprises
Securities Sold Under Agreements to Repurchase
Repurchase Agreements	12,507
U.S. government sponsored enterprises | Overnight and Continuous
Securities Sold Under Agreements to Repurchase
Repurchase Agreements	12,507
U.S. government sponsored enterprises | Up to 30 Days
Securities Sold Under Agreements to Repurchase
Repurchase Agreements	0
Residential mortgage-backed securities
Securities Sold Under Agreements to Repurchase
Repurchase Agreements	410,907	397,107
Residential mortgage-backed securities | Overnight and Continuous
Securities Sold Under Agreements to Repurchase
Repurchase Agreements	408,460	391,997
Residential mortgage-backed securities | Up to 30 Days
Securities Sold Under Agreements to Repurchase
Repurchase Agreements	$ 2,447	$ 5,110

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Scheduled Maturities of FHLB Advances (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
FHLB Advances
Maturing within one year, Amount	$ 185,091	$ 93,979
Maturing within one year, Weighted rate	1.02%	2.81%
Maturing one year through two years, Amount	$ 179	$ 45,042
Maturing one year through two years, Weighted rate	4.19%	2.99%
Maturing two years through three years, Amount	$ 70,597	$ 0
Maturing two years through three years, Weighted rate	1.01%	0.00%
Maturing three years through four years, Amount	$ 167	$ 20,250
Maturing three years through four years, Weighted rate	3.79%	2.83%
Maturing four years through five years, Amount	$ 945	$ 174
Maturing four years through five years, Weighted rate	4.98%	4.74%
Thereafter, Amount	$ 137,152	$ 137,499
Thereafter, Weighted rate	3.12%	3.12%
Total, Amount	$ 394,131	$ 296,944
Total, Weighted rate	1.76%	2.98%

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Borrowings (Details Textual) - USD ($)	Dec. 31, 2015	Dec. 31, 2014
Borrowings
Repurchase Agreements	$ 423,414,000	$ 397,107,000
Securities Pledged for Repurchase Agreements	446,838,000	479,345,000
FHLB advances	394,131,000	$ 296,944,000
Lines of credit	255,000,000
FHLB Put Options
Borrowings
FHLB advances	$ 200,000,000
Minimum rate to exercise put option	8.00%
FHLB Advances, Due Date, Earliest	2016
FHLB Advances, Due Date, Last	2021
FHLB Advances, Interest Rate, Range from	2.73%
FHLB Advances, Interest Rate, Range to	3.43%

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Subordinated Debentures (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Terms of Subordinated Debentures
Balance	$ 125,848	$ 125,705
First Company Statutory Trust 2001
Terms of Subordinated Debentures
Balance	$ 3,144
Rate at December 31, 2015	3.629%
Variable Rate Structure	3 mo LIBOR plus 3.30%
LIBOR Rate Spread	3.30%
Maturity Date	Jul. 31, 2031
First Company Statutory Trust 2003
Terms of Subordinated Debentures
Balance	$ 2,316
Rate at December 31, 2015	3.576%
Variable Rate Structure	3 mo LIBOR plus 3.25%
LIBOR Rate Spread	3.25%
Maturity Date	Mar. 26, 2033
Glacier Capital Trust II
Terms of Subordinated Debentures
Balance	$ 46,393
Rate at December 31, 2015	3.071%
Variable Rate Structure	3 mo LIBOR plus 2.75%
LIBOR Rate Spread	2.75%
Maturity Date	Apr. 07, 2034
Citizens (ID) Statutory Trust I
Terms of Subordinated Debentures
Balance	$ 5,155
Rate at December 31, 2015	3.176%
Variable Rate Structure	3 mo LIBOR plus 2.65%
LIBOR Rate Spread	2.65%
Maturity Date	Jun. 17, 2034
Glacier Capital Trust III
Terms of Subordinated Debentures
Balance	$ 36,083
Rate at December 31, 2015	1.611%
Variable Rate Structure	3 mo LIBOR plus 1.29%
LIBOR Rate Spread	1.29%
Maturity Date	Apr. 07, 2036
Glacier Capital Trust IV
Terms of Subordinated Debentures
Balance	$ 30,928
Rate at December 31, 2015	2.082%
Variable Rate Structure	3 mo LIBOR plus 1.57%
LIBOR Rate Spread	1.57%
Maturity Date	Sep. 15, 2036
Bank of the San Juans Bancorporation Trust I
Terms of Subordinated Debentures
Balance	$ 1,829
Rate at December 31, 2015	2.234%
Variable Rate Structure	3 mo LIBOR plus 1.82%
LIBOR Rate Spread	1.82%
Maturity Date	Mar. 01, 2037

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Subordinated Debentures (Details Textual)	12 Months Ended
	Dec. 31, 2015
Debt Instruments [Abstract]
Maximum Number of Consecutive Quarters for Deferral of Interest Payments on Trust Preferred Securities	20
Size of company eligible for Tier 1 grandfather provision	15,000,000,000

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Interest Rate Swap Summary (Details) - Interest Rate Swap $ in Thousands	12 Months Ended
	Dec. 31, 2015 USD ($)
Interest Rate Swap One
Interest rate swap derivative financial instruments
Forecasted Notional Amount	$ 160,000
Variable Interest Rate	3 month LIBOR	[1]
Fixed Interest Rate	3.378%	[1]
Term, Effective Date	Oct. 21, 2014
Term, Maturity Date	Oct. 21, 2021
Interest Rate Swap Two
Interest rate swap derivative financial instruments
Forecasted Notional Amount	$ 100,000
Variable Interest Rate	3 month LIBOR	[1]
Fixed Interest Rate	2.498%	[1]
Term, Effective Date	Nov. 30, 2015
Term, Maturity Date	Nov. 30, 2022

[1] The Company pays the fixed interest rate and the counterparty pays the Company the variable interest rate.

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Derivatives and Hedging Activities Interest Rate Swap Gains or Losses (Details) - Interest Rate Swap - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Interest Expense
Pre-Tax Gains or Losses
Amount of loss reclassified from OCI to interest expense	$ (5,025)	$ (993)	$ 0
Other Non-Interest Expense
Pre-Tax Gains or Losses
Amount of loss recognized in other non-interest expense (ineffective portion)	0	0	0
Other Comprehensive Income
Pre-Tax Gains or Losses
Amount of (loss) gain recognized in OCI (effective portion)	$ (7,857)	$ (19,557)	$ 18,728

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Derivatives and Hedging Activities Offsetting Assets (Details) - Interest Rate Swap - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Offsetting Derivative Assets
Gross Amounts of Recognized Assets	$ 0	$ 0
Gross Amounts Offset in the Statements of Financial Position	0	0
Net Amounts of Assets Presented in the Statements of Financial Position	$ 0	$ 0

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Derivatives and Hedging Activities Offsetting Liabilities (Details) - Interest Rate Swap - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Offsetting Derivative Liabilities
Gross Amounts of Recognized Liabilities	$ 19,499	$ 16,668
Gross Amounts Offset in the Statements of Financial Position	0	0
Net Amounts of Liabilities Presented in the Statements of Financial Position	$ 19,499	$ 16,668

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Derivatives and Hedging Activities Derivatives and Hedging Activities (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Interest rate swap derivative financial instruments
Investment securities pledged as collateral	$ 1,824,819,000	$ 1,673,263,000
Interest Rate Swap
Interest rate swap derivative financial instruments
Interest rate expense recorded on interest rate swap	5,695,000	$ 1,066,000
Unrealized loss to be reclassified within twelve months	7,903,000
Investment securities pledged as collateral	25,730,000
Collateral pledged from counterparties to the Company	0
Interest Rate Swap One | Interest Rate Swap
Interest rate swap derivative financial instruments
Forecasted Notional Amount	160,000,000
Interest Rate Swap Two | Interest Rate Swap
Interest rate swap derivative financial instruments
Forecasted Notional Amount	$ 100,000,000

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Regulatory Capital (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Total capital (to risk-weighted assets)
Actual, Amount	$ 1,131,460	$ 1,065,282
Actual, Ratio	17.17%	18.93%
Minimum capital requirement, Amount	$ 527,160	$ 450,240
Minimum capital requirement, Ratio	8.00%	8.00%
Well capitalized requirement, Amount		$ 562,800
Well capitalized requirement, Ratio		10.00%
Tier 1 capital (to risk-weighted assets)
Actual, Amount	$ 1,048,505	$ 994,197
Actual, Ratio	15.91%	17.67%
Minimum capital requirement, Amount	$ 395,370	$ 225,120
Minimum capital requirement, Ratio	6.00%	4.00%
Well capitalized requirement, Amount		$ 337,680
Well capitalized requirement, Ratio		6.00%
Common Equity Tier 1 (to risk-weighted assets)
Actual, Amount	$ 926,523
Actual, Ratio	14.06%
Minimum capital requirement, Amount	$ 296,528
Minimum capital requirement, Ratio	4.50%
Tier 1 capital (to average assets)
Actual, Amount	$ 1,048,505	$ 994,197
Actual, Ratio	12.01%	12.45%
Minimum capital requirement, Amount	$ 349,066	$ 319,505
Minimum capital requirement, Ratio	4.00%	4.00%
Glacier Bank
Total capital (to risk-weighted assets)
Actual, Amount	$ 1,093,669	$ 1,023,669
Actual, Ratio	16.66%	18.25%
Minimum capital requirement, Amount	$ 525,228	$ 448,739
Minimum capital requirement, Ratio	8.00%	8.00%
Well capitalized requirement, Amount	$ 656,535	$ 560,924
Well capitalized requirement, Ratio	10.00%	10.00%
Tier 1 capital (to risk-weighted assets)
Actual, Amount	$ 1,010,981	$ 952,815
Actual, Ratio	15.40%	16.99%
Minimum capital requirement, Amount	$ 393,921	$ 224,370
Minimum capital requirement, Ratio	6.00%	4.00%
Well capitalized requirement, Amount	$ 525,228	$ 336,554
Well capitalized requirement, Ratio	8.00%	6.00%
Common Equity Tier 1 (to risk-weighted assets)
Actual, Amount	$ 1,010,981
Actual, Ratio	15.40%
Minimum capital requirement, Amount	$ 295,441
Minimum capital requirement, Ratio	4.50%
Well capitalized requirement, Amount	$ 426,748
Well capitalized requirement, Ratio	6.50%
Tier 1 capital (to average assets)
Actual, Amount	$ 1,010,981	$ 952,815
Actual, Ratio	11.66%	12.03%
Minimum capital requirement, Amount	$ 346,715	$ 316,938
Minimum capital requirement, Ratio	4.00%	4.00%
Well capitalized requirement, Amount	$ 433,394	$ 396,173
Well capitalized requirement, Ratio	5.00%	5.00%

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Summary of Stock Option Activity (Details) - Stock Options	12 Months Ended
	Dec. 31, 2015 $ / shares shares
Changes in shares granted for stock options for the year
Options outstanding, Beginning Balance | shares	1,000
Options, Exercised | shares	(1,000)
Options, forfeited or expired | shares	0
Options outstanding, Ending Balance | shares	0
Options, Exercisable | shares	0
Weighted-Average Exercise Price
Options outstanding, Weighted Average Exercise Price, Beginning Balance | $ / shares	$ 16.73
Options, exercised, weighted average exercise price | $ / shares	16.73
Options, forfeited or expired, weighted average exercise price | $ / shares	0.00
Options outstanding, Weighted Average Exercise Price, Ending Balance | $ / shares	0.00
Options exercisable, Weighted Average Exercise Price | $ / shares	$ 0.00

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Stock-based Compensation Plan Summary of Restricted Stock Award Activity (Details) - Restricted Stock	12 Months Ended
	Dec. 31, 2015 $ / shares shares
Restricted stock award activity for the year
Restricted Stock Non-Vested, Beginning Balance | shares	162,053
Restricted Stock, Granted | shares	133,414
Restricted Stock, Vested | shares	(81,294)
Restricted Stock, Forfeited | shares	(8,184)
Restricted Stock Non-Vested, Ending Balance | shares	205,989.000
Weighted-average grant date fair value
Restricted stock, weighted average grant date fair value, beginning balance | $ / shares	$ 22.04
Restricted stock, granted, weighted average grant date fair value | $ / shares	25.35
Restricted stock, vested, weighted average grant date fair value | $ / shares	21.66
Restricted stock, forfeited, weighted average grant date fair value | $ / shares	24.36
Restricted stock, weighted average grant date fair value, ending balance | $ / shares	$ 24.24

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Stock-based Compensation Plan (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Stock-based Compensation Plans
Number of stock-based compensation plans	2
Shares available to grant to employees and directors	2,485,765
Stock Options
Stock Options
Number of stock options granted	0	0	0
Unrecognized compensation expense	$ 0
Total intrinsic value of options exercised	13,000	$ 778,000	$ 1,907,000
Total intrinsic value of options exercised, tax benefit	5,000	302,000	742,000
Cash received from options exercised	17,000	871,000	4,327,000
Restricted Stock
Restricted Stock Awards
Compensation expense related to awards	2,470,000	1,603,000	768,000
Income tax benefit related to awards	957,000	622,000	299,000
Unrecognized compensation expense	$ 2,965,000
Unrecognized compensation expense, recognized over weighted-average period	2 years
Fair value of awards that vested	$ 1,761,000	953,000	197,000
Tax benefit of awards that vested	$ 795,000	$ 532,000	$ 77,000
Average remaining contractual term on non-vested awards	11 months
Aggregate intrinsic value of non-vested awards	$ 5,465,000

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Employee Benefit Plans (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
401(k) and Profit Sharing Plans
401(k) and Profit Sharing Plans
Minimum age required to be considered eligible for plan	21
Period of Employment Required to be Eligible for Plan	3
Minimum number of quarters required to be eligible for employer discretionary contribution	1
Minimum number of hours required to be considered eligible for employer discretionary contribution	501
Percent rate for non-elective safe harbor contribution as component of profit sharing plan	3.00%
Profit Sharing Plan Expense	$ 8,017,000	$ 7,107,000	$ 5,862,000
Maximum percentage of annual compensation allowable for contribution by eligible employees	60.00%
Percentage of amount out of first specific percent of employee's contribution matched under plan	50.00%
Percentage of employee's contribution required to determine the matched amount under the plan	6.00%
Employee Benefits Plans
Company's contribution to the plan	$ 2,629,000	2,246,000	1,935,000
Deferred Compensation Plans
Deferred Compensation Plans
Percentage of salary for deferral of cash payments	50.00%
Percentage of bonuses and directors fees for deferral of cash payments	100.00%
Total amount deferred	$ 720,000	591,000	376,000
Liability related to obligations of deferred compensation plans	$ 11,971,000	11,165,000
Employee Benefits Plans
Credit earning rate as a percentage of return on equity	50.00%
Total earnings for the plan	$ 386,000	369,000	515,000
Supplemental Employee Retirement Plan
Employee Benefits Plans
Company's contribution to the plan	$ 224,000	151,000	76,000
Credit earning rate as a percentage of return on equity	50.00%
Total earnings for the plan	$ 69,000	$ 59,000	$ 48,000

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Other Expenses (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Other Expenses
Debit card expenses	$ 6,153	$ 5,802	$ 6,131
Consulting and outside services	5,525	4,179	3,243
VIE write-downs, losses and other expenses	4,528	4,231	4,210
Employee expenses	4,034	3,557	2,686
Postage	3,716	3,391	3,302
Checking and operating expenses	3,554	3,517	3,091
Printing and supplies	3,530	3,547	3,112
Telephone	3,353	2,911	2,498
Loan expenses	2,824	2,513	2,444
Accounting and audit fees	1,401	1,393	1,146
ATM expenses	1,082	1,268	1,087
Legal fees	1,082	1,455	1,728
Other	3,983	3,884	4,178
Total other expenses	$ 44,765	$ 41,648	$ 38,856

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Summary of Income Tax Expense (Details) - USD ($)		3 Months Ended								12 Months Ended
		Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Current
Federal										$ 28,705,000	$ 21,860,000	$ 18,377,000
State										9,374,000	8,118,000	7,007,000
Total current income tax expense										38,079,000	29,978,000	25,384,000
Deferred
Federal	[1]									(3,451,000)	5,016,000	3,918,000
State	[1]									(629,000)	915,000	715,000
Total deferred income tax (benefit) expense	[1]									(4,080,000)	5,931,000	4,633,000
Total income tax expense		$ 8,341,000	$ 9,305,000	$ 7,488,000	$ 8,865,000	$ 8,846,000	$ 9,800,000	$ 8,350,000	$ 8,913,000	33,999,000	35,909,000	30,017,000
Tax benefit of operating loss carryforwards										$ 391,000	$ 0	$ 0

[1] Includes tax benefit of operating loss carryforwards of $391,000, $0 and $0 for the years ended December 31, 2015, 2014, and 2013, respectively.

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Summary of Effective Tax Rate (Details)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Effective income tax rate reconciliation
Federal statutory rate	35.00%	35.00%	35.00%
State taxes, net of federal income tax benefit	3.70%	4.00%	4.00%
Tax-exempt interest income	(12.60%)	(11.50%)	(12.20%)
Tax credits	(3.00%)	(2.80%)	(3.20%)
Other, net	(0.50%)	(0.50%)	0.30%
Effective tax rate	22.60%	24.20%	23.90%

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Deferred Tax Assets and Deferred Tax Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Deferred tax assets
Allowance for loan and lease losses	$ 50,123	$ 50,013
Other real estate owned	8,380	8,200
Deferred compensation	8,166	5,024
Interest rate swap agreements	7,554	6,467
Acquisition fair market value adjustments	5,842	5,302
Income tax credits and net operating loss carryforwards	3,590	4,652
Employee benefits	3,165	2,839
Other	5,433	4,290
Total gross deferred tax assets	92,253	86,787
Deferred tax liabilities
Available-for-sale securities	(8,812)	(17,716)
Deferred loan costs	(7,427)	(6,419)
Intangibles	(6,272)	(4,290)
FHLB stock dividends	(4,601)	(10,342)
Depreciation of premises and equipment	(2,376)	(2,358)
Other	(4,290)	(3,925)
Total gross deferred tax liabilities	(33,778)	(45,050)
Net deferred tax asset	$ 58,475	$ 41,737

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Years Subject to Examination (Details)	12 Months Ended
	Dec. 31, 2015
Federal
Income Tax Examination
Income tax return jurisdictions and years that remain subject to examination	2008, 2009, 2010, 2012, 2013 and 2014
Montana
Income Tax Examination
Income tax return jurisdictions and years that remain subject to examination	2012, 2013 and 2014
Idaho
Income Tax Examination
Income tax return jurisdictions and years that remain subject to examination	2009, 2010, 2011, 2012, 2013 and 2014
Colorado
Income Tax Examination
Income tax return jurisdictions and years that remain subject to examination	2008, 2009, 2010, 2011, 2012, 2013 and 2014
Utah
Income Tax Examination
Income tax return jurisdictions and years that remain subject to examination	2012, 2013 and 2014

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Federal and State Income Taxes (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Income Tax Uncertainties
Unrecognized income tax benefit	$ 0	$ 0
Accrued liabilities for the payment of interest or penalties	0	0
Valuation Allowance
Deferred tax valuation allowance	0	$ 0
Federal and State Income Taxes
Base year reserve for bad debts	3,600,000
Federal
Operating Loss Carryforwards
Operating Loss Carryforwards, Amount	$ 8,882,000
Federal | Earliest Tax Year
Operating Loss Carryforwards
Operating Loss Carryforwards, Expiration Date	Dec. 31, 2029
Federal | Latest Tax Year
Operating Loss Carryforwards
Operating Loss Carryforwards, Expiration Date	Dec. 31, 2031
Colorado
Operating Loss Carryforwards
Operating Loss Carryforwards, Amount	$ 15,985,000
Colorado | Earliest Tax Year
Operating Loss Carryforwards
Operating Loss Carryforwards, Expiration Date	Dec. 31, 2029
Colorado | Latest Tax Year
Operating Loss Carryforwards
Operating Loss Carryforwards, Expiration Date	Dec. 31, 2031

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Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Accumulated Other Comprehensive Income (Loss)
Balance, beginning	$ 17,744	$ 9,645	$ 47,962
Other comprehensive income (loss) before reclassification	(18,791)	7,366	(38,500)
Amounts reclassified from accumulated other comprehensive income	3,036	733	183
Net current period other comprehensive income (loss)	(15,755)	8,099	(38,317)
Balance, end	1,989	17,744	9,645
Available-For-Sale Securities
Accumulated Other Comprehensive Income (Loss)
Balance, beginning	27,945	8,485	58,245
Other comprehensive income (loss) before reclassification	(13,968)	19,335	(49,943)
Amounts reclassified from accumulated other comprehensive income	(42)	125	183
Net current period other comprehensive income (loss)	(14,010)	19,460	(49,760)
Balance, end	13,935	27,945	8,485
Derivatives Used for Cash Flow Hedges
Accumulated Other Comprehensive Income (Loss)
Balance, beginning	(10,201)	1,160	(10,283)
Other comprehensive income (loss) before reclassification	(4,823)	(11,969)	11,443
Amounts reclassified from accumulated other comprehensive income	3,078	608	0
Net current period other comprehensive income (loss)	(1,745)	(11,361)	11,443
Balance, end	$ (11,946)	$ (10,201)	$ 1,160

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Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Basic and Diluted Earnings Per Share
Net Income	$ 29,508	$ 29,614	$ 29,335	$ 27,670	$ 28,054	$ 29,294	$ 28,677	$ 26,730	$ 116,127	$ 112,755	$ 95,644
Average outstanding shares - basic									75,542,455	74,641,957	73,191,713
Add: dilutive stock options and awards									53,126	45,358	68,565
Average outstanding shares - diluted									75,595,581	74,687,315	73,260,278
Basic earnings per share	$ 0.39	$ 0.39	$ 0.39	$ 0.37	$ 0.37	$ 0.40	$ 0.38	$ 0.36	$ 1.54	$ 1.51	$ 1.31
Diluted earnings per share	$ 0.39	$ 0.39	$ 0.39	$ 0.37	$ 0.37	$ 0.40	$ 0.38	$ 0.36	$ 1.54	$ 1.51	$ 1.31
Earnings Per Share
Stock options and restricted stock awards excluded from the diluted average outstanding share calculation									0	0	38,915

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Condensed Statements of Financial Condition (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Assets
Cash on hand and in banks	$ 117,137	$ 122,834
Interest bearing cash deposits	70,036	318,550
Cash and cash equivalents	193,253	442,409
Investment securities, available-for-sale	2,610,760	2,387,428
Other assets	71,117	67,828
Total assets	9,089,232	8,306,507
Liabilities and Stockholders' Equity
Subordinated debentures	125,848	125,705
Other liabilities	114,062	102,026
Total liabilities	8,012,582	7,278,460
Common stock	761	750
Paid-in capital	736,368	708,356
Retained earnings	337,532	301,197
Accumulated other comprehensive income	1,989	17,744	$ 9,645	$ 47,962
Total stockholders’ equity	1,076,650	1,028,047	$ 963,250	$ 900,949
Total liabilities and stockholders’ equity	9,089,232	8,306,507
Parent Company
Assets
Cash on hand and in banks	1,854	4,019
Interest bearing cash deposits	46,808	51,127
Cash and cash equivalents	48,662	55,146
Investment securities, available-for-sale	65	91
Other assets	11,553	8,511
Investment in subsidiaries	1,175,844	1,121,937
Total assets	1,236,124	1,185,685
Liabilities and Stockholders' Equity
Dividends Payable	22,893	22,557
Subordinated debentures	125,848	125,705
Other liabilities	10,733	9,376
Total liabilities	159,474	157,638
Common stock	761	750
Paid-in capital	736,368	708,356
Retained earnings	337,532	301,197
Accumulated other comprehensive income	1,989	17,744
Total stockholders’ equity	1,076,650	1,028,047
Total liabilities and stockholders’ equity	$ 1,236,124	$ 1,185,685

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Condensed Statements of Operations and Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income
Loss on sale of investments									$ 19	$ (188)	$ (299)
Expenses
Compensation and employee benefits									134,409	118,571	104,221
Other operating expenses									44,765	41,648	38,856
Total non-interest expense	$ 62,203	$ 59,112	$ 59,945	$ 55,497	$ 55,698	$ 54,238	$ 52,673	$ 50,070	236,757	212,679	195,317
Income tax benefit	(8,341)	(9,305)	(7,488)	(8,865)	(8,846)	(9,800)	(8,350)	(8,913)	(33,999)	(35,909)	(30,017)
Net Income	$ 29,508	$ 29,614	$ 29,335	$ 27,670	$ 28,054	$ 29,294	$ 28,677	$ 26,730	116,127	112,755	95,644
Total Comprehensive Income									100,372	120,854	57,327
Parent Company
Income
Dividends from subsidiaries									109,000	78,500	65,445
Loss on sale of investments									0	0	(3,248)
Other income									196	199	966
Intercompany charges for services									10,562	9,283	7,387
Total income									119,758	87,982	70,550
Expenses
Compensation and employee benefits									13,205	10,773	9,175
Other operating expenses									7,313	6,824	6,536
Total non-interest expense									20,518	17,597	15,711
Income before income tax benefit and equity in undistributed net income of subsidiaries									99,240	70,385	54,839
Income tax benefit									3,105	2,919	3,676
Income before equity in undistributed net income of subsidiaries									102,345	73,304	58,515
Equity in undistributed net income of subsidiaries									13,782	39,451	37,129
Net Income									116,127	112,755	95,644
Total Comprehensive Income									$ 100,372	$ 120,854	$ 57,327

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Condensed Statements of Cash Flows (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Operating Activities
Net income	$ 29,508	$ 29,614	$ 29,335	$ 27,670	$ 28,054	$ 29,294	$ 28,677	$ 26,730	$ 116,127	$ 112,755	$ 95,644
Adjustments to reconcile net income to net cash provided by operating activities:
Loss on sale of investments									(19)	188	299
Excess tax (benefits) deficiencies from stock-based compensation									(102)	(138)	223
Net cash provided by operating activities									171,466	182,734	334,095
Investing Activities
Sales of available-for-sale securities									136,777	169,372	181,971
Maturities, prepayments and calls of available-for-sale securities									663,828	628,238	1,682,363
Net addition of premises and equipment									(18,224)	(14,389)	(8,977)
Net sale (purchase) of non-marketable equity securities									27,770	801	583
Net cash (used in) provided by investing activities									(676,571)	158,893	149,237
Financing Activities
Net increase in other borrowed funds									(566)	(933)	(1,502)
Cash dividends paid									(79,456)	(50,944)	(44,232)
Excess tax benefits (deficiencies) from stock-based compensation									102	138	(223)
Stock-based compensation activity									17	785	4,326
Net cash used in financing activities									255,949	(54,875)	(514,715)
Net (decrease) increase in cash and cash equivalents									(249,156)	286,752	(31,383)
Cash and cash equivalents at beginning of period				442,409				155,657	442,409	155,657	187,040
Cash and cash equivalents at end of period	193,253				442,409				193,253	442,409	155,657
Parent Company
Operating Activities
Net income									116,127	112,755	95,644
Adjustments to reconcile net income to net cash provided by operating activities:
Subsidiary income in excess of dividends distributed									(13,782)	(39,451)	(37,129)
Loss on sale of investments									0	0	3,248
Excess tax (benefits) deficiencies from stock-based compensation									(102)	(138)	223
Net change in other assets and other liabilities									307	140	2,575
Net cash provided by operating activities									102,550	73,306	64,561
Investing Activities
Sales of available-for-sale securities									0	0	23,990
Maturities, prepayments and calls of available-for-sale securities									0	0	2,571
Changes in investment securities and other stock - intercompany									0	0	(946)
Net addition of premises and equipment									(1,405)	(179)	(603)
Net sale (purchase) of non-marketable equity securities									22	(667)	0
Equity contribution to subsidiaries									(28,457)	(18,115)	(11,336)
Net cash (used in) provided by investing activities									(29,840)	(18,961)	13,676
Financing Activities
Net increase in other borrowed funds									143	143	144
Cash dividends paid									(79,456)	(50,944)	(44,232)
Excess tax benefits (deficiencies) from stock-based compensation									102	138	(223)
Stock-based compensation activity									17	785	4,326
Net cash used in financing activities									(79,194)	(49,878)	(39,985)
Net (decrease) increase in cash and cash equivalents									(6,484)	4,467	38,252
Cash and cash equivalents at beginning of period				$ 55,146				$ 50,679	55,146	50,679	12,427
Cash and cash equivalents at end of period	$ 48,662				$ 55,146				$ 48,662	$ 55,146	$ 50,679

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Unaudited Quarterly Financial Data (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Summarized unaudited quarterly financial data
Interest income	$ 83,211	$ 80,367	$ 78,617	$ 77,486	$ 76,179	$ 75,690	$ 73,963	$ 74,087	$ 319,681	$ 299,919	$ 263,576
Interest expense	7,215	7,309	7,369	7,382	7,368	6,430	6,528	6,640	29,275	26,966	28,758
Net interest income	75,996	73,058	71,248	70,104	68,811	69,260	67,435	67,447	290,406	272,953	234,818
Provision for loan losses	411	826	282	765	191	360	239	1,122	2,284	1,912	6,887
Net interest income after provision for loan losses	75,585	72,232	70,966	69,339	68,620	68,900	67,196	66,325	288,122	271,041	227,931
Non-interest income	24,467	25,799	25,802	22,693	23,978	24,432	22,504	19,388	98,761	90,302	93,047
Non-interest expense	62,203	59,112	59,945	55,497	55,698	54,238	52,673	50,070	236,757	212,679	195,317
Income before income taxes	37,849	38,919	36,823	36,535	36,900	39,094	37,027	35,643	150,126	148,664	125,661
Federal and state income tax expense	8,341	9,305	7,488	8,865	8,846	9,800	8,350	8,913	33,999	35,909	30,017
Net Income	$ 29,508	$ 29,614	$ 29,335	$ 27,670	$ 28,054	$ 29,294	$ 28,677	$ 26,730	$ 116,127	$ 112,755	$ 95,644
Basic earnings per share	$ 0.39	$ 0.39	$ 0.39	$ 0.37	$ 0.37	$ 0.40	$ 0.38	$ 0.36	$ 1.54	$ 1.51	$ 1.31
Diluted earnings per share	$ 0.39	$ 0.39	$ 0.39	$ 0.37	$ 0.37	$ 0.40	$ 0.38	$ 0.36	$ 1.54	$ 1.51	$ 1.31

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Fair Value Measurements on a Recurring Basis (Details) - Recurring measurements - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Financial Assets
Total assets measured at fair value on a recurring basis	$ 2,610,760	$ 2,387,428
Financial Liabilities
Total liabilities measured at fair value on a recurring basis	19,499	16,668
Interest rate swaps
Financial Liabilities
Interest rate swaps	19,499	16,668
U.S. government and federal agency
Financial Assets
Investment securities, available-for-sale	47,451	44
U.S. government sponsored enterprises
Financial Assets
Investment securities, available-for-sale	93,167	21,945
State and local governments
Financial Assets
Investment securities, available-for-sale	885,019	997,969
Corporate bonds
Financial Assets
Investment securities, available-for-sale	384,163	314,854
Residential mortgage-backed securities
Financial Assets
Investment securities, available-for-sale	1,200,960	1,052,616
Level 1
Financial Assets
Total assets measured at fair value on a recurring basis	0	0
Financial Liabilities
Total liabilities measured at fair value on a recurring basis	0	0
Level 1 | Interest rate swaps
Financial Liabilities
Interest rate swaps	0	0
Level 1 | U.S. government and federal agency
Financial Assets
Investment securities, available-for-sale	0	0
Level 1 | U.S. government sponsored enterprises
Financial Assets
Investment securities, available-for-sale	0	0
Level 1 | State and local governments
Financial Assets
Investment securities, available-for-sale	0	0
Level 1 | Corporate bonds
Financial Assets
Investment securities, available-for-sale	0	0
Level 1 | Residential mortgage-backed securities
Financial Assets
Investment securities, available-for-sale	0	0
Level 2
Financial Assets
Total assets measured at fair value on a recurring basis	2,610,760	2,387,428
Financial Liabilities
Total liabilities measured at fair value on a recurring basis	19,499	16,668
Level 2 | Interest rate swaps
Financial Liabilities
Interest rate swaps	19,499	16,668
Level 2 | U.S. government and federal agency
Financial Assets
Investment securities, available-for-sale	47,451	44
Level 2 | U.S. government sponsored enterprises
Financial Assets
Investment securities, available-for-sale	93,167	21,945
Level 2 | State and local governments
Financial Assets
Investment securities, available-for-sale	885,019	997,969
Level 2 | Corporate bonds
Financial Assets
Investment securities, available-for-sale	384,163	314,854
Level 2 | Residential mortgage-backed securities
Financial Assets
Investment securities, available-for-sale	1,200,960	1,052,616
Level 3
Financial Assets
Total assets measured at fair value on a recurring basis	0	0
Financial Liabilities
Total liabilities measured at fair value on a recurring basis	0	0
Level 3 | Interest rate swaps
Financial Liabilities
Interest rate swaps	0	0
Level 3 | U.S. government and federal agency
Financial Assets
Investment securities, available-for-sale	0	0
Level 3 | U.S. government sponsored enterprises
Financial Assets
Investment securities, available-for-sale	0	0
Level 3 | State and local governments
Financial Assets
Investment securities, available-for-sale	0	0
Level 3 | Corporate bonds
Financial Assets
Investment securities, available-for-sale	0	0
Level 3 | Residential mortgage-backed securities
Financial Assets
Investment securities, available-for-sale	$ 0	$ 0

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Fair Value Measurements on a Non-Recurring Basis (Details) - Nonrecurring Measurements - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Assets with a recorded change from re-measuring at fair value on a non-recurring basis
Other real estate owned	$ 7,609	$ 3,000
Collateral-dependent impaired loans, net of ALLL	12,938	15,480
Total assets measured at fair value on a non-recurring basis	20,547	18,480
Level 1
Assets with a recorded change from re-measuring at fair value on a non-recurring basis
Other real estate owned	0	0
Collateral-dependent impaired loans, net of ALLL	0	0
Total assets measured at fair value on a non-recurring basis	0	0
Level 2
Assets with a recorded change from re-measuring at fair value on a non-recurring basis
Other real estate owned	0	0
Collateral-dependent impaired loans, net of ALLL	0	0
Total assets measured at fair value on a non-recurring basis	0	0
Level 3
Assets with a recorded change from re-measuring at fair value on a non-recurring basis
Other real estate owned	7,609	3,000
Collateral-dependent impaired loans, net of ALLL	12,938	15,480
Total assets measured at fair value on a non-recurring basis	$ 20,547	$ 18,480

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Fair Value of Assets and Liabilities Quantitative Information about Level 3 Fair Value Measurements (Details) - Nonrecurring Measurements - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2015	Dec. 31, 2014
Quantitative Information About Level 3 Fair Value Measurements
Fair Value		$ 20,547	$ 18,480
Level 3
Quantitative Information About Level 3 Fair Value Measurements
Fair Value		20,547	18,480
Other real estate owned | Level 3
Quantitative Information About Level 3 Fair Value Measurements
Fair Value		7,609	3,000
Other real estate owned | Sales Comparison Approach | Level 3
Quantitative Information About Level 3 Fair Value Measurements
Fair Value		4,067	2,393
Other real estate owned | Combined Approach | Level 3
Quantitative Information About Level 3 Fair Value Measurements
Fair Value		$ 3,542	$ 607
Other real estate owned | Minimum Range | Sales Comparison Approach | Level 3
Unobservable Inputs
Selling Costs	[1]	7.00%	0.00%
Adjustment to Comparables	[1]		0.00%
Other real estate owned | Minimum Range | Combined Approach | Level 3
Unobservable Inputs
Selling Costs	[1]	8.00%	10.00%
Discount Rate	[1]		10.00%
Other real estate owned | Maximum Range | Sales Comparison Approach | Level 3
Unobservable Inputs
Selling Costs	[1]	10.00%	10.00%
Adjustment to Comparables	[1]		7.00%
Other real estate owned | Maximum Range | Combined Approach | Level 3
Unobservable Inputs
Selling Costs	[1]	8.00%	10.00%
Discount Rate	[1]		10.00%
Other real estate owned | Weighted Average Range | Sales Comparison Approach | Level 3
Unobservable Inputs
Selling Costs	[1]	7.90%	5.80%
Adjustment to Comparables	[1]		0.50%
Other real estate owned | Weighted Average Range | Combined Approach | Level 3
Unobservable Inputs
Selling Costs	[1]	8.00%	10.00%
Discount Rate	[1]		10.00%
Collateral-dependent Impaired Loans, Net of ALLL | Level 3
Quantitative Information About Level 3 Fair Value Measurements
Fair Value		$ 12,938	$ 15,480
Collateral-dependent Impaired Loans, Net of ALLL | Sales Comparison Approach | Level 3
Quantitative Information About Level 3 Fair Value Measurements
Fair Value		9,465	6,330
Collateral-dependent Impaired Loans, Net of ALLL | Combined Approach | Level 3
Quantitative Information About Level 3 Fair Value Measurements
Fair Value		3,311	3,809
Collateral-dependent Impaired Loans, Net of ALLL | Cost Approach | Level 3
Quantitative Information About Level 3 Fair Value Measurements
Fair Value		$ 162	6
Collateral-dependent Impaired Loans, Net of ALLL | Income Approach | Level 3
Quantitative Information About Level 3 Fair Value Measurements
Fair Value			$ 5,335
Collateral-dependent Impaired Loans, Net of ALLL | Minimum Range | Sales Comparison Approach | Level 3
Unobservable Inputs
Selling Costs	[1]	8.00%	0.00%
Adjustment to Comparables	[1]	0.00%	0.00%
Collateral-dependent Impaired Loans, Net of ALLL | Minimum Range | Combined Approach | Level 3
Unobservable Inputs
Selling Costs	[1]	10.00%	8.00%
Adjustment to Comparables	[1]	20.00%	10.00%
Collateral-dependent Impaired Loans, Net of ALLL | Minimum Range | Cost Approach | Level 3
Unobservable Inputs
Selling Costs	[1]	0.00%	7.00%
Collateral-dependent Impaired Loans, Net of ALLL | Minimum Range | Income Approach | Level 3
Unobservable Inputs
Selling Costs	[1]		8.00%
Discount Rate	[1]		8.30%
Collateral-dependent Impaired Loans, Net of ALLL | Maximum Range | Sales Comparison Approach | Level 3
Unobservable Inputs
Selling Costs	[1]	20.00%	10.00%
Adjustment to Comparables	[1]	5.00%	30.00%
Collateral-dependent Impaired Loans, Net of ALLL | Maximum Range | Combined Approach | Level 3
Unobservable Inputs
Selling Costs	[1]	10.00%	10.00%
Adjustment to Comparables	[1]	20.00%	20.00%
Collateral-dependent Impaired Loans, Net of ALLL | Maximum Range | Cost Approach | Level 3
Unobservable Inputs
Selling Costs	[1]	20.00%	7.00%
Collateral-dependent Impaired Loans, Net of ALLL | Maximum Range | Income Approach | Level 3
Unobservable Inputs
Selling Costs	[1]		10.00%
Discount Rate	[1]		12.00%
Collateral-dependent Impaired Loans, Net of ALLL | Weighted Average Range | Sales Comparison Approach | Level 3
Unobservable Inputs
Selling Costs	[1]	8.90%	8.30%
Adjustment to Comparables	[1]	0.00%	3.50%
Collateral-dependent Impaired Loans, Net of ALLL | Weighted Average Range | Combined Approach | Level 3
Unobservable Inputs
Selling Costs	[1]	10.00%	9.20%
Adjustment to Comparables	[1]	20.00%	16.20%
Collateral-dependent Impaired Loans, Net of ALLL | Weighted Average Range | Cost Approach | Level 3
Unobservable Inputs
Selling Costs	[1]	6.10%	7.00%
Collateral-dependent Impaired Loans, Net of ALLL | Weighted Average Range | Income Approach | Level 3
Unobservable Inputs
Selling Costs	[1]		8.50%
Discount Rate	[1]		9.10%

[1] The range for selling costs and adjustments to comparables indicate reductions to the fair value.

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Carrying Amount and Fair Value of Financial Instruments (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Carrying Amount
Financial Assets
Cash and cash equivalents	$ 193,253	$ 442,409
Investment securities, available-for-sale	2,610,760	2,387,428
Investment securities, held-to-maturity	702,072	520,997
Loans held-for-sale	56,514	46,726
Loans receivable, net of ALLL	4,948,984	4,358,342
Accrued interest receivable	44,524	40,587
Non-marketable equity securities	27,495	52,868
Total financial assets	8,583,602	7,849,357
Financial Liabilities
Deposits	6,945,008	6,345,212
FHLB advances	394,131	296,944
Repurchase agreements and other borrowed funds	430,016	404,418
Subordinated debentures	125,848	125,705
Accrued interest payable	3,517	4,155
Interest rate swaps	19,499	16,668
Total financial liabilities	7,918,019	7,193,102
Estimated Fair Value | Level 1
Financial Assets
Cash and cash equivalents	193,253	442,409
Investment securities, available-for-sale	0	0
Investment securities, held-to-maturity	0	0
Loans held-for-sale	56,514	46,726
Loans receivable, net of ALLL	0	0
Accrued interest receivable	44,524	40,587
Non-marketable equity securities	0	0
Total financial assets	294,291	529,722
Financial Liabilities
Deposits	5,654,638	4,928,771
FHLB advances	0	0
Repurchase agreements and other borrowed funds	0	0
Subordinated debentures	0	0
Accrued interest payable	3,517	4,155
Interest rate swaps	0	0
Total financial liabilities	5,658,155	4,932,926
Estimated Fair Value | Level 2
Financial Assets
Cash and cash equivalents	0	0
Investment securities, available-for-sale	2,610,760	2,387,428
Investment securities, held-to-maturity	729,513	550,946
Loans held-for-sale	0	0
Loans receivable, net of ALLL	4,851,934	4,288,417
Accrued interest receivable	0	0
Non-marketable equity securities	27,495	52,868
Total financial assets	8,219,702	7,279,659
Financial Liabilities
Deposits	1,293,506	1,421,234
FHLB advances	401,530	312,363
Repurchase agreements and other borrowed funds	430,016	404,418
Subordinated debentures	81,840	76,711
Accrued interest payable	0	0
Interest rate swaps	19,499	16,668
Total financial liabilities	2,226,391	2,231,394
Estimated Fair Value | Level 3
Financial Assets
Cash and cash equivalents	0	0
Investment securities, available-for-sale	0	0
Investment securities, held-to-maturity	0	0
Loans held-for-sale	0	0
Loans receivable, net of ALLL	132,649	149,769
Accrued interest receivable	0	0
Non-marketable equity securities	0	0
Total financial assets	132,649	149,769
Financial Liabilities
Deposits	0	0
FHLB advances	0	0
Repurchase agreements and other borrowed funds	0	0
Subordinated debentures	0	0
Accrued interest payable	0	0
Interest rate swaps	0	0
Total financial liabilities	$ 0	$ 0

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Contingencies and Commitments (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Outstanding Commitments
Outstanding commitments	$ 1,263,338	$ 976,711
Commitments to Extend Credit
Outstanding Commitments
Outstanding commitments	1,240,923	960,180
Letters of Credit
Outstanding Commitments
Outstanding commitments	$ 22,415	$ 16,531

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Consideration Transferred, Identifiable Net Assets Acquired and Goodwill Recognized (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Liabilities assumed
Goodwill recognized	$ 10,932	$ 0	$ 23,606
Bargain purchase gain	0	(680)	$ 0
Canon National Bank
Fair value of consideration transferred
Fair value of Company shares issued, net of equity issuance costs	15,163
Cash consideration for outstanding shares	16,145
Contingent consideration	0
Total fair value of consideration transferred	31,308
Identifiable assets acquired
Cash and cash equivalents	17,860
Investment securities	68,486
Loans receivable	159,759
Core deposit intangible	4,532
Accrued income and other assets	9,689
Total identifiable assets acquired	260,326
Liabilities assumed
Deposits	237,326
FHLB advances and repurchase agreements	0
Accrued expenses and other liabilities	1,487
Total liabilities assumed	238,813
Total identifiable net assets	21,513
Goodwill recognized	9,795
Montana Community Banks, Inc.
Fair value of consideration transferred
Fair value of Company shares issued, net of equity issuance costs	10,776
Cash consideration for outstanding shares	12,219
Contingent consideration	0
Total fair value of consideration transferred	22,995
Identifiable assets acquired
Cash and cash equivalents	31,931
Investment securities	42,350
Loans receivable	84,689
Core deposit intangible	2,087
Accrued income and other assets	13,580
Total identifiable assets acquired	174,637
Liabilities assumed
Deposits	146,820
FHLB advances and repurchase agreements	3,292
Accrued expenses and other liabilities	2,667
Total liabilities assumed	152,779
Total identifiable net assets	21,858
Goodwill recognized	$ 1,137
FNBR Holding Corporation
Fair value of consideration transferred
Fair value of Company shares issued, net of equity issuance costs		15,127
Cash consideration for outstanding shares		16,690
Contingent consideration		0
Total fair value of consideration transferred		31,817
Identifiable assets acquired
Cash and cash equivalents		14,578
Investment securities		157,018
Loans receivable		137,488
Core deposit intangible		4,199
Accrued income and other assets		35,884
Total identifiable assets acquired		349,167
Liabilities assumed
Deposits		309,641
FHLB advances and repurchase agreements		0
Accrued expenses and other liabilities		7,029
Total liabilities assumed		316,670
Total identifiable net assets		32,497
Bargain purchase gain		$ (680)

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Pro Forma Summary (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
2015 acquisitions
Pro Forma Information
Net interest income and non-interest income	$ 401,140	$ 383,387
Net income	$ 115,613	115,899
2014 acquisitions
Pro Forma Information
Net interest income and non-interest income		371,772	$ 340,393
Net income		$ 113,364	$ 99,275

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Mergers and Acquisitions (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Business Acquisition
Bargain purchase gain, amount	$ 0	$ 680,000	$ 0
Canon National Bank
Business Acquisition
Effective Date of Acquisition	Oct. 31, 2015
Percentage of Outstanding Common Stock Acquired	100.00%
Business Combination, Consideration Transferred	$ 31,308,000
Number of Shares Issued for Aquisition	554,206
Cash consideration for outstanding shares	$ 16,145,000
Loans receivable	159,759,000
Loans Receivable Acquired, Gross Principal and Contractual Interest Due	164,568,000
Loans Receivable Acquired, Gross Principal and Contractual Interest Due, Expected to be Uncollectible	0
Core deposit intangible	$ 4,532,000
Core Deposit Intangible Assets, Weighted Average Useful Life	10 years
Third-party Acquisition Related Costs	$ 707,000
Net interest income and non-interest income	2,606,000
Net income	$ 563,000
Montana Community Banks, Inc.
Business Acquisition
Effective Date of Acquisition	Feb. 28, 2015
Percentage of Outstanding Common Stock Acquired	100.00%
Business Combination, Consideration Transferred	$ 22,995,000
Number of Shares Issued for Aquisition	443,644
Cash consideration for outstanding shares	$ 12,219,000
Loans receivable	84,689,000
Loans Receivable Acquired, Gross Principal and Contractual Interest Due	88,817,000
Loans Receivable Acquired, Gross Principal and Contractual Interest Due, Expected to be Uncollectible	0
Core deposit intangible	$ 2,087,000
Core Deposit Intangible Assets, Weighted Average Useful Life	10 years
Third-party Acquisition Related Costs	$ 1,605,000
Net interest income and non-interest income	7,492,000
Net income	$ 1,808,000
FNBR Holding Corporation
Business Acquisition
Effective Date of Acquisition		Aug. 31, 2014
Percentage of Outstanding Common Stock Acquired		100.00%
Business Combination, Consideration Transferred		$ 31,817,000
Number of Shares Issued for Aquisition		555,732
Cash consideration for outstanding shares		$ 16,690,000
Bargain purchase gain, amount		680,000
Loans receivable		137,488,000
Loans Receivable Acquired, Gross Principal and Contractual Interest Due		146,019,000
Loans Receivable Acquired, Gross Principal and Contractual Interest Due, Expected to be Uncollectible		0
Core deposit intangible		$ 4,199,000
Core Deposit Intangible Assets, Weighted Average Useful Life		10 years
Third-party Acquisition Related Costs		$ 552,000
Net interest income and non-interest income		6,672,000
Net income		$ 1,675,000