10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

____________________________________________________________

FORM 10-Q

____________________________________________________________

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

For the quarterly period ended June 30, 2018

¨ 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

Not Applicable

(Former name, former address, and former fiscal year, if changed since last report)

____________________________________________________________

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 Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).    ý  Yes    No  ¨

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

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

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ¨

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 number of shares of Registrant’s common stock outstanding on July 17, 2018 was 84,516,901. No preferred shares are issued or outstanding.

TABLE OF CONTENTS

	Page
Part I. Financial Information
Item 1 – Financial Statements
Unaudited Condensed Consolidated Statements of Financial Condition – June 30, 2018 and December 31, 2017	4
Unaudited Condensed Consolidated Statements of Operations – Three and Six Months ended June 30, 2018 and 2017	5
Unaudited Condensed Consolidated Statements of Comprehensive Income – Three and Six Months ended June 30, 2018 and 2017	6
Unaudited Condensed Consolidated Statements of Changes in Stockholders’ Equity – Six Months ended June 30, 2018 and 2017	7
Unaudited Condensed Consolidated Statements of Cash Flows – Six Months ended June 30, 2018 and 2017	8
Notes to Unaudited Condensed Consolidated Financial Statements	10
Item 2 – Management’s Discussion and Analysis of Financial Condition and Results of Operations	40
Item 3 – Quantitative and Qualitative Disclosure about Market Risk	73
Item 4 – Controls and Procedures	73
Part II. Other Information	73
Item 1 – Legal Proceedings	73
Item 1A – Risk Factors	73
Item 2 – Unregistered Sales of Equity Securities and Use of Proceeds	73
Item 3 – Defaults upon Senior Securities	74
Item 4 – Mine Safety Disclosures	74
Item 5 – Other Information	74
Item 6 – Exhibits	74
Signatures	75

ABBREVIATIONS/ACRONYMS

ALCO – Asset Liability Committee

ALLL or allowance – allowance for loan and lease losses

ASC – Accounting Standards Codification^TM

ATM – automated teller machine

Bank – Glacier Bank

CDE – Certified Development Entity

CDFI Fund – Community Development Financial Institutions Fund

CEO – Chief Executive Officer

CFO – Chief Financial Officer

Collegiate – Columbine Capital Corp. and its subsidiary, Collegiate Peaks Bank

Company – Glacier Bancorp, Inc.

DDA – demand deposit account

Dodd-Frank Act – Dodd-Frank Wall Street Reform and Consumer Protection Act

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

FRB – Federal Reserve Bank

Freddie Mac – Federal Home Loan Mortgage Corporation

FSB – Inter-Mountain Bancorp., Inc. and its subsidiary, First Security Bank

GAAP – accounting principles generally accepted in the United States of America

Ginnie Mae – Government National Mortgage Association

LIBOR – London Interbank Offered Rate

LIHTC – Low Income Housing Tax Credit

NMTC – New Markets Tax Credit

NOW – negotiable order of withdrawal

NRSRO – Nationally Recognized Statistical Rating Organizations

OCI – other comprehensive income

OREO – other real estate owned

Repurchase agreements – securities sold under agreements to repurchase

S&P – Standard and Poor’s

SEC – United States Securities and Exchange Commission

Tax Act – The Tax Cuts and Jobs Act

TDR – troubled debt restructuring

VIE – variable interest entity

GLACIER BANCORP, INC.

UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF FINANCIAL CONDITION

(Dollars in thousands, except per share data)	June 30, 2018			December 31, 2017
Assets
Cash on hand and in banks	$	174,239		139,948
Interest bearing cash deposits	193,893			60,056
Cash and cash equivalents	368,132			200,004
Debt securities, available-for-sale	2,177,352			1,778,243
Debt securities, held-to-maturity	620,409			648,313
Total debt securities	2,797,761			2,426,556
Loans held for sale, at fair value	53,788			38,833
Loans receivable	7,948,672			6,577,824
Allowance for loan and lease losses	(131,564		)	(129,568	)
Loans receivable, net	7,817,108			6,448,256
Premises and equipment, net	240,373			177,348
Other real estate owned	13,616			14,269
Accrued interest receivable	55,973			44,462
Deferred tax asset	34,211			38,344
Core deposit intangible, net	52,708			14,184
Goodwill	289,535			177,811
Non-marketable equity securities	26,107			29,884
Bank-owned life insurance	81,379			59,351
Other assets	66,953			37,047
Total assets	$	11,897,644		9,706,349
Liabilities
Non-interest bearing deposits	$	2,914,885		2,311,902
Interest bearing deposits	6,508,690			5,267,845
Securities sold under agreements to repurchase	361,515			362,573
Federal Home Loan Bank advances	395,037			353,995
Other borrowed funds	9,917			8,224
Subordinated debentures	134,058			126,135
Accrued interest payable	3,952			3,450
Other liabilities	95,598			73,168
Total liabilities	10,423,652			8,507,292
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	845			780
Paid-in capital	1,049,724			797,997
Retained earnings - substantially restricted	443,705			402,259
Accumulated other comprehensive loss	(20,282		)	(1,979	)
Total stockholders’ equity	1,473,992			1,199,057
Total liabilities and stockholders’ equity	$	11,897,644		9,706,349
Number of common stock shares issued and outstanding	84,516,650			78,006,956

See accompanying notes to unaudited condensed consolidated financial statements.

4

GLACIER BANCORP, INC.

UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS

	Three Months ended					Six Months ended
(Dollars in thousands, except per share data)	June 30, 2018			June 30, 2017		June 30, 2018		June 30, 2017
Interest Income
Investment securities	$	22,370		21,379		42,512		43,318
Residential real estate loans	10,149			8,350		18,934		16,268
Commercial loans	75,824			56,182		141,339		106,152
Consumer and other loans	9,372			8,121		17,996		15,922
Total interest income	117,715			94,032		220,781		181,660
Interest Expense
Deposits	4,617			4,501		8,533		8,941
Securities sold under agreements to repurchase	486			443		971		825
Federal Home Loan Bank advances	2,513			1,734		4,602		3,244
Other borrowed funds	26			19		42		34
Subordinated debentures	1,519			1,077		2,787		2,096
Total interest expense	9,161			7,774		16,935		15,140
Net Interest Income	108,554			86,258		203,846		166,520
Provision for loan losses	4,718			3,013		5,513		4,611
Net interest income after provision for loan losses	103,836			83,245		198,333		161,909
Non-Interest Income
Service charges and other fees	18,804			17,495		35,675		33,128
Miscellaneous loan fees and charges	2,243			1,092		3,720		2,072
Gain on sale of loans	8,142			7,532		14,239		13,890
Loss on sale of debt securities	(56		)	(522	)	(389	)	(622	)
Other income	2,695			2,059		4,669		4,877
Total non-interest income	31,828			27,656		57,914		53,345
Non-Interest Expense
Compensation and employee benefits	49,023			39,498		94,744		78,744
Occupancy and equipment	7,662			6,560		14,936		13,206
Advertising and promotions	2,530			2,169		4,700		4,142
Data processing	4,241			3,409		8,208		6,533
Other real estate owned	211			442		283		715
Regulatory assessments and insurance	1,329			1,087		2,535		2,148
Core deposit intangibles amortization	1,748			639		2,804		1,240
Other expenses	15,051			11,505		27,212		21,925
Total non-interest expense	81,795			65,309		155,422		128,653
Income Before Income Taxes	53,869			45,592		100,825		86,601
Federal and state income tax expense	9,485			11,905		17,882		21,659
Net Income	$	44,384		33,687		82,943		64,942
Basic earnings per share	$	0.53		0.43		1.00		0.84
Diluted earnings per share	$	0.52		0.43		1.00		0.84
Dividends declared per share	$	0.26		0.21		0.49		0.42
Average outstanding shares - basic	84,514,257			77,546,236		82,671,816		77,061,867
Average outstanding shares - diluted	84,559,268			77,592,325		82,734,407		77,125,677

See accompanying notes to unaudited condensed consolidated financial statements.

5

GLACIER BANCORP, INC.

UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

	Three Months ended					Six Months ended
(Dollars in thousands)	June 30, 2018			June 30, 2017		June 30, 2018		June 30, 2017
Net Income	$	44,384		33,687		82,943		64,942
Other Comprehensive (Loss) Income, Net of Tax
Unrealized (losses) gains on available-for-sale debt securities	(6,696		)	16,894		(32,407	)	20,007
Reclassification adjustment for losses included in net income	64			457		346		596
Net unrealized (losses) gains on available-for-sale debt securities	(6,632		)	17,351		(32,061	)	20,603
Tax effect	1,681			(6,722	)	8,125		(7,982	)
Net of tax amount	(4,951		)	10,629		(23,936	)	12,621
Unrealized gains (losses) on derivatives used for cash flow hedges	1,689			(2,108	)	6,068		(1,844	)
Reclassification adjustment for losses included in net income	577			1,262		1,477		2,594
Net unrealized gains (losses) on derivatives used for cash flow hedges	2,266			(846	)	7,545		750
Tax effect	(574		)	328		(1,912	)	(290	)
Net of tax amount	1,692			(518	)	5,633		460
Total other comprehensive (loss) income, net of tax	(3,259		)	10,111		(18,303	)	13,081
Total Comprehensive Income	$	41,125		43,798		64,640		78,023

See accompanying notes to unaudited condensed consolidated financial statements.

6

GLACIER BANCORP, INC.

UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS’ EQUITY

Six Months Months ended June 30, 2018 and 2017

(Dollars in thousands, except per share data)	Common Stock			Paid-in Capital		Retained Earnings Substantially Restricted		Accumulated Other Compre- hensive (Loss) Income
	Shares	Amount								Total
Balance at December 31, 2016	76,525,402	$	765	749,107		374,379		(7,382	)	1,116,869
Net income	—	—		—		64,942		—		64,942
Other comprehensive income	—	—		—		—		13,081		13,081
Cash dividends declared ($0.42 per share)	—	—		—		(32,550	)	—		(32,550	)
Stock issued in connection with acquisitions	1,381,661	14		46,659		—		—		46,673
Stock issuances under stock incentive plans	94,827	1		(1	)	—		—		—
Stock-based compensation and related taxes	—	—		942		—		—		942
Balance at June 30, 2017	78,001,890	$	780	796,707		406,771		5,699		1,209,957
Balance at December 31, 2017	78,006,956	$	780	797,997		402,259		(1,979	)	1,199,057
Net income	—	—		—		82,943		—		82,943
Other comprehensive loss	—	—		—		—		(18,303	)	(18,303	)
Cash dividends declared ($0.49 per share)	—	—		—		(41,497	)	—		(41,497	)
Stock issued in connection with acquisitions	6,432,868	64		250,743		—		—		250,807
Stock issuances under stock incentive plans	76,826	1		(1	)	—		—		—
Stock-based compensation and related taxes	—	—		985		—		—		985
Balance at June 30, 2018	84,516,650	$	845	1,049,724		443,705		(20,282	)	1,473,992

See accompanying notes to unaudited condensed consolidated financial statements.

7

GLACIER BANCORP, INC.

UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

	Six Months ended
(Dollars in thousands)	June 30, 2018			June 30, 2017
Operating Activities
Net income	$	82,943		64,942
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for loan losses	5,513			4,611
Net amortization of debt securities	6,835			11,232
Net accretion of purchase accounting adjustments	(1,425		)	(4,994	)
Amortization of debt modification costs	825			—
Origination of loans held for sale	(415,553		)	(417,973	)
Proceeds from loans held for sale	425,484			475,919
Gain on sale of loans	(14,239		)	(13,890	)
Loss on sale of debt securities	389			622
Bank-owned life insurance income, net	(1,310		)	(660	)
Stock-based compensation, net of tax benefits	1,868			1,017
Depreciation of premises and equipment	7,544			7,334
Gain on sale of other real estate owned and write-downs, net	(81		)	(1,033	)
Amortization of core deposit intangibles	2,804			1,240
Amortization of investments in variable interest entities	2,911			2,007
Net (increase) decrease in accrued interest receivable	(4,306		)	7
Net decrease in other assets	1,048			6,536
Net increase (decrease) in accrued interest payable	57			(51	)
Net decrease in other liabilities	(2,070		)	(191	)
Net cash provided by operating activities	99,237			136,675
Investing Activities
Sales of available-for-sale debt securities	219,855			111,003
Maturities, prepayments and calls of available-for-sale debt securities	156,482			224,664
Purchases of available-for-sale debt securities	(499,552		)	(17,402	)
Maturities, prepayments and calls of held-to-maturity debt securities	26,767			15,235
Principal collected on loans	1,269,145			947,134
Loan originations	(1,681,348		)	(1,327,095	)
Net additions to premises and equipment	(11,297		)	(5,179	)
Proceeds from sale of other real estate owned	1,693			6,759
Proceeds from redemption of non-marketable equity securities	41,393			42,500
Purchases of non-marketable equity securities	(40,385		)	(39,399	)
Proceeds from bank-owned life insurance	299			437
Investments in variable interest entities	(23,072		)	(10,177	)
Net cash received from (paid in) acquisitions	101,268			(4,091	)
Net cash used in investing activities	(438,752		)	(55,611	)

See accompanying notes to unaudited condensed consolidated financial statements.

8

GLACIER BANCORP, INC.

UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Continued)

	Six Months ended
(Dollars in thousands)	June 30, 2018			June 30, 2017
Financing Activities
Net increase in deposits	$	528,881		128,827
Net decrease in securities sold under agreements to repurchase	(30,238		)	(22,600	)
Net increase (decrease) in short-term Federal Home Loan Bank advances	40,000			(62,800	)
Repayments of long-term Federal Home Loan Bank advances	(528		)	(227	)
Net (decrease) increase in other borrowed funds	(9,850		)	1,377
Cash dividends paid	(19,551		)	(39,139	)
Tax withholding payments for stock-based compensation	(1,071		)	(1,453	)
Net cash provided by financing activities	507,643			3,985
Net increase in cash, cash equivalents and restricted cash	168,128			85,049
Cash, cash equivalents and restricted cash at beginning of period	200,004			152,541
Cash, cash equivalents and restricted cash at end of period	$	368,132		237,590
Supplemental Disclosure of Cash Flow Information
Cash paid during the period for interest	$	16,878		15,191
Cash paid during the period for income taxes	12,403			18,449
Supplemental Disclosure of Non-Cash Investing Activities
Sale and refinancing of other real estate owned	$	372		345
Transfer of loans to other real estate owned	1,144			3,521
Dividends declared but not paid	22,211			16,548
Acquisitions
Fair value of common stock shares issued	250,807			46,673
Cash consideration for outstanding shares	16,265			17,342
Effective settlement of a pre-existing relationship	10,054			—
Fair value of assets acquired	1,549,158			355,230
Liabilities assumed	1,383,756			321,824

See accompanying notes to unaudited condensed consolidated financial statements.

9

GLACIER BANCORP, INC.

NOTES TO UNAUDITED CONDENSED 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, Utah, Washington, Wyoming, Colorado and Arizona through its wholly-owned bank subsidiary, Glacier Bank (“Bank”). The Company offers a wide range of banking products and services, including: 1) retail banking; 2) business banking; 3) real estate, commercial, agriculture and consumer loans; and 4) mortgage origination services. The Company serves individuals, small to medium-sized businesses, community organizations and public entities.

In the opinion of management, the accompanying unaudited condensed consolidated financial statements contain all adjustments (consisting of normal recurring adjustments) necessary for a fair presentation of the Company’s financial condition as of June 30, 2018, the results of operations and comprehensive income for the three and six month periods ended June 30, 2018 and 2017, and changes in stockholders’ equity and cash flows for the six month periods ended June 30, 2018 and 2017. The condensed consolidated statement of financial condition of the Company as of December 31, 2017 has been derived from the audited consolidated statements of the Company as of that date.

The accompanying unaudited condensed consolidated financial statements do not include all of the information and footnotes required by accounting principles generally accepted in the United States of America (“GAAP”) for complete financial statements. These unaudited condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and notes thereto contained in the Company’s Annual Report on Form 10-K for the year ended December 31, 2017. Operating results for the six months ended June 30, 2018 are not necessarily indicative of the results anticipated for the year ending December 31, 2018.

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.

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 debt 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 and the Bank. The Bank consists of fourteen bank divisions, a treasury division, an information technology division and a centralized mortgage division. The treasury division includes the Bank’s investment portfolio and wholesale borrowings, the information technology division includes the Bank’s internal data processing, and the centralized mortgage division includes mortgage loan servicing and secondary market sales. The Bank divisions operate under separate names, management teams and advisory 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 (“CEO”) (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.

10

The Bank has subsidiary interests in variable interest entities (“VIE”) for which the Bank has both the power to direct the VIE’s significant activities and the obligation to absorb losses or right to receive benefits of the VIE that could potentially be significant to the VIE. These subsidiary interests are included in the Company’s consolidated financial statements. The Bank also has subsidiary interests in VIEs for which the Bank does not have a controlling financial interest and is not the primary beneficiary. These subsidiary interests are not included in the Company’s consolidated financial statements.

The parent holding company owns non-bank subsidiaries that have issued trust preferred securities as Tier 1 capital instruments. The trust subsidiaries are not included in the Company’s consolidated financial statements. The Company's investments in the trust subsidiaries are included in other assets on the Company's statements of financial condition.

In February 2018, the Company completed its acquisition of Inter-Mountain Bancorp., Inc. and its wholly-owned subsidiary, First Security Bank, a community bank based in Bozeman, Montana (collectively, “FSB”). In January 2018, the Company completed its acquisition of Columbine Capital Corp., and its wholly-owned subsidiary, Collegiate Peaks Bank, a community bank based in Buena Vista, Colorado (collectively, “Collegiate”). 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. For additional information relating to recent mergers and acquisitions, see Note 12.

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. 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.

11

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 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.

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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.

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 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.

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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 and overdraft 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 other real estate owned (“OREO”) until such time as it is sold.

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.

Revenue Recognition

The Company recognizes revenue when services or products are transferred to customers in an amount that reflects the consideration to which the Company expects to be entitled. The Company’s principal source of revenue is interest income from debt securities and loans. Revenue from contracts with customers within the scope of Accounting Standards Codification^™ (“ASC”) Topic 606 was $36,553,000 and $34,234,000 for the six months ended June 30, 2018 and 2017, respectively, and largely consisted of revenue from service charges and other fees from deposits (e.g., overdraft fees, ATM fees, debit card fees). Due to the short-term nature of the Company’s contracts with customers, an insignificant amount of receivables related to such revenue was recorded at June 30, 2018 and December 31, 2017 and there were no impairment losses recognized. Policies specific to revenue from contracts with customers include the following:

Service Charges. Revenue from service charges consists of service charges and fees on deposit accounts under depository agreements with customers to provide access to deposited funds and, when applicable, pay interest on deposits. Service charges on deposit accounts may be transactional or non-transactional in nature. Transactional service charges occur in the form of a service or penalty and are charged upon the occurrence of an event (e.g., overdraft fees, ATM fees, wire transfer fees). Transactional service charges are recognized as services are delivered to and consumed by the customer, or as penalty fees are charged. Non-transactional service charges are charges that are based on a broader service, such as account maintenance fees and dormancy fees, and are recognized on a monthly basis.

Debit Card Fees. Revenue from debit card fees includes interchange fee income from debit cards processed through card association networks. Interchange fees represent a portion of a transaction amount that the Company and other involved parties retain to compensate themselves for giving the cardholder immediate access to funds. Interchange rates are generally set by the card association networks and are based on purchase volumes and other factors. The Company records interchange fees as services are provided.

Accounting Guidance Adopted in 2018

The 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 accounting standards that may have had a material effect on the Company’s financial position or results of operations.

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Financial Instruments. In January 2016, FASB amended ASC Topic 825 to address certain aspects of recognition, measurement, presentation, and disclosure of financial instruments. The amendments were effective for public business entities for the first interim and annual reporting periods beginning after December 15, 2017. Amendments were to be applied by means of a cumulative-effect adjustment to the Company’s statements of financial condition as of the beginning of the reporting year of adoption. The amendments impacted the Company as follows: 1) equity investments (with certain exclusions) are to be measured at fair value with the changes recognized in net income; 2) an exit price must be utilized when measuring the fair value of financial instruments; and 3) additional disclosures are required relating to other comprehensive income (“OCI”), the evaluation of a valuation allowance on a deferred tax asset related to available-for-sale debt securities in combination with the entity’s other deferred tax assets, and other disclosures. The Company adopted the amendments effective January 1, 2018 and determined that the impact of these amendments did not have a significant impact on the Company’s equity securities, fair value disclosures, financial position or results of operations. The amendments changed the method utilized to disclose the fair value of the loan portfolio to an exit price notion when measuring fair value. The Company developed processes to comply with the disclosure requirements of such amendments and accounting policies and procedures were updated accordingly. For additional information on fair value of assets and liabilities, see Note 11.

Revenue Recognition. In May 2014, FASB amended ASC Topic 606 to clarify the principles for recognizing revenue and develop a common revenue standard among industries. The new guidance established the following core principle: 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 were provided for a company or organization to follow to achieve such core principle. The new guidance also included a cohesive set of disclosure requirements that provided 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 Company adopted the new revenue recognition guidance effective January 1, 2018 and determined the majority of the Company’s revenue sources, such as interest income from debt securities and loans, fee income from loans and gain on sale of loans, were not within the scope of Topic 606. The Company evaluated the revenue sources determined to be in scope of Topic 606, including service charges and fee income on deposits and gain or loss on sale of OREO and determined the adoption of the guidance did not have a significant impact to the Company’s financial position or results of operations; however, OREO policies and procedures were updated and implemented and new disclosures about the Company’s revenue have been incorporated into the notes to the financial statements.

Accounting Guidance Pending Adoption at June 30, 2018

The following paragraphs provide descriptions of newly issued but not yet effective accounting standards that could have a material effect on the Company’s financial position or results of operations.

Derivatives and Hedging. In August 2017, FASB amended ASC Topic 815 to improve the financial reporting of hedging relationships to better portray the economic results of an entity’s risk management activities in its financial statements. In addition, the amendments made targeted improvements to simplify the application of the hedge accounting guidance. The amendments are effective for public business entities for the first interim and annual reporting periods beginning after December 15, 2018 and early adoption is permitted. The Company is currently evaluating the full impact of the amendments on its existing interest rate swaps and whether it will early adopt. The Company does not expect there to be an impact to the Company’s financial position and results of operations, although, there may be additional financial statement disclosures. The accounting policies and procedures will be modified after the Company has fully evaluated the standard, although significant changes are not expected. For additional information on derivatives, see Note 7.

Receivables - Nonrefundable Fees and Other Costs. In March 2017, FASB amended ASC Subtopic 310-20 to shorten the amortization period for certain callable debt securities held at a premium. Specifically, the amendments require the premium to be amortized to the earliest call date instead of the maturity date. The amendments do not require an accounting change for securities held at a discount; the discount continues to be amortized to maturity. The amendments are effective for public business entities for the first interim and annual reporting periods beginning after December 15, 2018. Early adoption is permitted and if adopted in an interim period, any adjustments should be reflected as of the beginning of the year that includes the interim period. The entity should apply the amendments on a modified retrospective basis through a cumulative-effective adjustment directly to retained earnings as of the beginning of the period of adoption. The Company has premiums on debt securities that are currently being amortized to the maturity date, primarily in the state and local governments category. If the Company were to adopt these amendments as of July 1, 2018, the Company estimates that $21,869,000 of the premium associated with debt securities would be adjusted to retained earnings. The Company is currently reviewing the amendments to ensure it is fully compliant by the adoption date, including accounting policies and procedures, and doesn’t expect to early adopt.

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Goodwill and Other Intangibles. In January 2017, FASB amended ASC Topic 350 to simplify the measurement of goodwill by eliminating Step 2 from the goodwill impairment test. Instead, under these amendments, an entity should perform its annual, or interim, goodwill impairment test by comparing the fair value of a reporting unit with its carrying amount. An entity should recognize an impairment charge for the amount by which the carrying amount exceeds the reporting unit’s fair value; however, the loss should not exceed the total amount of goodwill allocated to that reporting unit. The amendments are effective for public business entities for the first interim and annual reporting periods beginning after December 15, 2019. Early adoption is permitted for interim or annual goodwill impairment tests performed on testing dates after January 1, 2017. The Company has goodwill from prior business combinations and performs an annual impairment test or more frequently if changes or circumstances occur that would more-likely-than-not reduce the fair value of the reporting unit below its carrying value. During the third quarter of 2017, the Company performed its impairment assessment and determined the fair value of the aggregated reporting units exceed the carrying value, such that the Company’s goodwill was not considered impaired. Although the Company cannot anticipate future goodwill impairment assessments, based on the most recent assessment, it is unlikely that an impairment amount would need to be calculated and, therefore, the Company does not anticipate a material impact from these amendments to the Company’s financial position and results of operations. The current accounting policies and processes are not anticipated to change, except for the elimination of the Step 2 analysis. For additional information regarding goodwill impairment testing, see Note 4.

Financial Instruments. In June 2016, FASB amended ASC Topic 326 to replace the incurred loss model with a methodology that reflects expected credit losses over the life of the loan and requires consideration of a broader range of reasonable and supportable information to calculate credit loss estimates. The amendments are effective for public business entities for the first interim and annual reporting periods beginning after December 15, 2019. The Company is currently evaluating the impact of these amendments to the Company’s financial position and results of operations and currently does not know or cannot reasonably quantify the impact of the adoption of the amendments as a result of the complexity and extensive changes from the amendments. The ALLL is a material estimate of the Company and given the change from an incurred loss model to a methodology that considers the credit loss over the life of the loan, there is the potential for an increase in the ALLL at adoption date. The Company is anticipating a significant change in the processes and procedures to calculate the ALLL, including changes in assumptions and estimates to consider expected credit losses over the life of the loan versus the current accounting practice that utilizes the incurred loss model. The Company will also develop new procedures for determining an allowance for credit losses relating to held-to-maturity debt securities. In addition, the current accounting policy and procedures for other-than-temporary impairment on available-for-sale debt securities will be replaced with an allowance approach. The Company has formed a project team and is actively reviewing the standard for developing and implementing processes and procedures to ensure it is fully compliant with the amendments at adoption date. For additional information on the ALLL, see Note 3.

Leases. In February 2016, FASB amended ASC Topic 842 to address several aspects of lease accounting with the significant change being the recognition of lease assets and lease liabilities for leases previously classified as operating leases. The amendments are effective for public business entities for the first interim and annual reporting periods beginning after December 15, 2018, and early adoption is permitted. The Company has lease agreements for which the amendments will require the recognition of a lease liability to make lease payments and a right-of-use asset which will represent its right to use the underlying asset for the lease term. The Company is currently reviewing the amendments to ensure it is fully compliant by the adoption date and doesn’t expect to early adopt. The Company does not expect the amendments to have a material effect on the Company’s financial position or results of operations since the Company does not have a significant amount of lease agreements. New processes and accounting policies will be implemented to comply with the amendments.

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Note 2. Debt Securities

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

	June 30, 2018
	Amortized Cost		Gross Unrealized			Fair Value
(Dollars in thousands)			Gains	Losses
Available-for-sale
U.S. government and federal agency	$	28,245	39	(191	)	28,093
U.S. government sponsored enterprises	120,327		—	(967	)	119,360
State and local governments	651,113		13,318	(10,513	)	653,918
Corporate bonds	319,344		666	(1,588	)	318,422
Residential mortgage-backed securities	909,306		436	(23,394	)	886,348
Commercial mortgage-backed securities	174,339		—	(3,128	)	171,211
Total available-for-sale	2,202,674		14,459	(39,781	)	2,177,352
Held-to-maturity
State and local governments	620,409		10,499	(12,399	)	618,509
Total held-to-maturity	620,409		10,499	(12,399	)	618,509
Total debt securities	$	2,823,083	24,958	(52,180	)	2,795,861

	December 31, 2017
	Amortized Cost		Gross Unrealized			Fair Value
(Dollars in thousands)			Gains	Losses
Available-for-sale
U.S. government and federal agency	$	31,216	54	(143	)	31,127
U.S. government sponsored enterprises	19,195		—	(104	)	19,091
State and local governments	614,366		20,299	(5,164	)	629,501
Corporate bonds	216,443		802	(483	)	216,762
Residential mortgage-backed securities	785,960		1,253	(7,930	)	779,283
Commercial mortgage-backed securities	104,324		25	(1,870	)	102,479
Total available-for-sale	1,771,504		22,433	(15,694	)	1,778,243
Held-to-maturity
State and local governments	648,313		20,346	(8,573	)	660,086
Total held-to-maturity	648,313		20,346	(8,573	)	660,086
Total debt securities	$	2,419,817	42,779	(24,267	)	2,438,329

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The following table presents the amortized cost and fair value of available-for-sale and held-to-maturity debt securities by contractual maturity at June 30, 2018. Actual maturities may differ from expected or contractual maturities since issuers have the right to prepay obligations with or without prepayment penalties.

	June 30, 2018
	Available-for-Sale			Held-to-Maturity
(Dollars in thousands)	Amortized Cost		Fair Value	Amortized Cost	Fair Value
Due within one year	$	144,924	144,621	—	—
Due after one year through five years	356,279		354,782	3,189	3,234
Due after five years through ten years	273,195		276,734	107,480	106,764
Due after ten years	344,631		343,656	509,740	508,511
	1,119,029		1,119,793	620,409	618,509
Mortgage-backed securities 1	1,083,645		1,057,559	—	—
Total	$	2,202,674	2,177,352	620,409	618,509

______________________________

¹Mortgage-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 debt securities and the associated gains and losses that have been included in earnings are listed below:

	Three Months ended					Six Months ended
(Dollars in thousands)	June 30, 2018			June 30, 2017		June 30, 2018		June 30, 2017
Available-for-sale
Proceeds from sales and calls of debt securities	$	4,765		104,172		233,446		112,663
Gross realized gains 1	9			3,057		15		3,067
Gross realized losses 1	(73		)	(3,514	)	(361	)	(3,663	)
Held-to-maturity
Proceeds from calls of debt securities	13,470			7,445		28,935		15,235
Gross realized gains 1	10			72		64		153
Gross realized losses 1	(2		)	(137	)	(107	)	(179	)

______________________________

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

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

	June 30, 2018
	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	$	11,849	(51	)	10,174	(140	)	22,023	(191	)
U.S. government sponsored enterprises	115,977		(873	)	3,383	(94	)	119,360	(967	)
State and local governments	189,904		(3,642	)	115,925	(6,871	)	305,829	(10,513	)
Corporate bonds	224,748		(1,240	)	27,202	(348	)	251,950	(1,588	)
Residential mortgage-backed securities	572,541		(13,293	)	225,798	(10,101	)	798,339	(23,394	)
Commercial mortgage-backed securities	119,796		(1,266	)	51,415	(1,862	)	171,211	(3,128	)
Total available-for-sale	$	1,234,815	(20,365	)	433,897	(19,416	)	1,668,712	(39,781	)
Held-to-maturity
State and local governments	$	167,716	(4,293	)	90,207	(8,106	)	257,923	(12,399	)
Total held-to-maturity	$	167,716	(4,293	)	90,207	(8,106	)	257,923	(12,399	)

	December 31, 2017
	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	$	1,208	(5	)	13,179	(138	)	14,387	(143	)
U.S. government sponsored enterprises	14,926		(56	)	3,425	(48	)	18,351	(104	)
State and local governments	61,126		(689	)	121,181	(4,475	)	182,307	(5,164	)
Corporate bonds	99,636		(264	)	29,034	(219	)	128,670	(483	)
Residential mortgage-backed securities	372,175		(3,050	)	254,721	(4,880	)	626,896	(7,930	)
Commercial mortgage-backed securities	37,650		(469	)	62,968	(1,401	)	100,618	(1,870	)
Total available-for-sale	$	586,721	(4,533	)	484,508	(11,161	)	1,071,229	(15,694	)
Held-to-maturity
State and local governments	$	21,207	(186	)	105,486	(8,387	)	126,693	(8,573	)
Total held-to-maturity	$	21,207	(186	)	105,486	(8,387	)	126,693	(8,573	)

Based on an analysis of its debt securities with unrealized losses as of June 30, 2018 and December 31, 2017, 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 debt securities is expected to recover as payments are received and the securities approach maturity. At June 30, 2018, management determined that it did not intend to sell debt securities with unrealized losses, and there was no expected requirement to sell any of its debt securities with unrealized losses before recovery of their amortized cost.

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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 Six Months ended			At or for the Year ended
(Dollars in thousands)	June 30, 2018			December 31, 2017
Residential real estate loans	$	835,382		720,728
Commercial loans
Real estate	4,384,781			3,577,139
Other commercial	1,940,435			1,579,353
Total	6,325,216			5,156,492
Consumer and other loans
Home equity	511,043			457,918
Other consumer	277,031			242,686
Total	788,074			700,604
Loans receivable	7,948,672			6,577,824
Allowance for loan and lease losses	(131,564		)	(129,568	)
Loans receivable, net	$	7,817,108		6,448,256
Net deferred origination (fees) costs included in loans receivable	$	(4,288	)	(2,643	)
Net purchase accounting (discounts) premiums included in loans receivable	$	(28,695	)	(16,325	)
Weighted-average interest rate on loans (tax-equivalent)	4.89		%	4.81	%

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The following tables summarize the activity in the ALLL by loan class:

	Three Months ended June 30, 2018
(Dollars in thousands)	Total			Residential Real Estate		Commercial Real Estate		Other Commercial		Home Equity		Other Consumer
Balance at beginning of period	$	127,608		10,634		68,342		38,108		6,040		4,484
Provision for loan losses	4,718			258		2,774		675		8		1,003
Charge-offs	(2,604		)	(44	)	(190	)	(640	)	(7	)	(1,723	)
Recoveries	1,842			55		319		521		51		896
Balance at end of period	$	131,564		10,903		71,245		38,664		6,092		4,660

	Three Months ended June 30, 2017
(Dollars in thousands)	Total			Residential Real Estate		Commercial Real Estate		Other Commercial		Home Equity		Other Consumer
Balance at beginning of period	$	129,226		11,535		64,753		39,157		7,679		6,102
Provision for loan losses	3,013			(10	)	4,559		(1,934	)	229		169
Charge-offs	(4,589		)	(21	)	(1,146	)	(650	)	(347	)	(2,425	)
Recoveries	2,227			18		337		411		101		1,360
Balance at end of period	$	129,877		11,522		68,503		36,984		7,662		5,206

	Six Months ended June 30, 2018
(Dollars in thousands)	Total			Residential Real Estate		Commercial Real Estate		Other Commercial		Home Equity		Other Consumer
Balance at beginning of period	$	129,568		10,798		68,515		39,303		6,204		4,748
Provision for loan losses	5,513			81		3,019		672		(194	)	1,935
Charge-offs	(7,611		)	(47	)	(1,223	)	(2,428	)	(19	)	(3,894	)
Recoveries	4,094			71		934		1,117		101		1,871
Balance at end of period	$	131,564		10,903		71,245		38,664		6,092		4,660

	Six Months ended June 30, 2017
(Dollars in thousands)	Total			Residential Real Estate		Commercial Real Estate		Other Commercial		Home Equity		Other Consumer
Balance at beginning of period	$	129,572		12,436		65,773		37,823		7,572		5,968
Provision for loan losses	4,611			(936	)	4,189		(145	)	358		1,145
Charge-offs	(8,818		)	(43	)	(2,034	)	(1,481	)	(443	)	(4,817	)
Recoveries	4,512			65		575		787		175		2,910
Balance at end of period	$	129,877		11,522		68,503		36,984		7,662		5,206

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The following tables disclose the recorded investment in loans and the balance in the ALLL by loan class:

	June 30, 2018
(Dollars in thousands)	Total		Residential Real Estate	Commercial Real Estate	Other Commercial	Home Equity	Other Consumer
Loans receivable
Individually evaluated for impairment	$	140,427	12,426	90,896	30,785	3,589	2,731
Collectively evaluated for impairment	7,808,245		822,956	4,293,885	1,909,650	507,454	274,300
Total loans receivable	$	7,948,672	835,382	4,384,781	1,940,435	511,043	277,031
ALLL
Individually evaluated for impairment	$	2,252	216	707	957	—	372
Collectively evaluated for impairment	129,312		10,687	70,538	37,707	6,092	4,288
Total ALLL	$	131,564	10,903	71,245	38,664	6,092	4,660

	December 31, 2017
(Dollars in thousands)	Total		Residential Real Estate	Commercial Real Estate	Other Commercial	Home Equity	Other Consumer
Loans receivable
Individually evaluated for impairment	$	119,994	12,399	77,536	23,032	3,755	3,272
Collectively evaluated for impairment	6,457,830		708,329	3,499,603	1,556,321	454,163	239,414
Total loans receivable	$	6,577,824	720,728	3,577,139	1,579,353	457,918	242,686
ALLL
Individually evaluated for impairment	$	5,223	246	500	3,851	56	570
Collectively evaluated for impairment	124,345		10,552	68,015	35,452	6,148	4,178
Total ALLL	$	129,568	10,798	68,515	39,303	6,204	4,748

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.

22

The following tables disclose information related to impaired loans by loan class:

	At or for the Three or Six Months ended June 30, 2018
(Dollars in thousands)	Total		Residential Real Estate	Commercial Real Estate	Other Commercial	Home Equity	Other Consumer
Loans with a specific valuation allowance
Recorded balance	$	16,513	2,501	10,169	2,671	—	1,172
Unpaid principal balance	16,871		2,574	10,369	2,719	—	1,209
Specific valuation allowance	2,252		216	707	957	—	372
Average balance - three months	20,343		3,064	9,378	6,537	33	1,331
Average balance - six months	19,458		3,035	7,767	7,086	84	1,486
Loans without a specific valuation allowance
Recorded balance	123,914		9,925	80,727	28,114	3,589	1,559
Unpaid principal balance	148,501		11,061	99,904	31,724	4,157	1,655
Average balance - three months	119,143		9,778	82,818	21,614	3,425	1,508
Average balance - six months	113,530		9,659	79,542	19,359	3,473	1,497
Total
Recorded balance	140,427		12,426	90,896	30,785	3,589	2,731
Unpaid principal balance	165,372		13,635	110,273	34,443	4,157	2,864
Specific valuation allowance	2,252		216	707	957	—	372
Average balance - three months	139,486		12,842	92,196	28,151	3,458	2,839
Average balance - six months	132,988		12,694	87,309	26,445	3,557	2,983

	At or for the Year ended December 31, 2017
(Dollars in thousands)	Total		Residential Real Estate	Commercial Real Estate	Other Commercial	Home Equity	Other Consumer
Loans with a specific valuation allowance
Recorded balance	$	17,689	2,978	4,545	8,183	186	1,797
Unpaid principal balance	18,400		3,046	4,573	8,378	199	2,204
Specific valuation allowance	5,223		246	500	3,851	56	570
Average balance	18,986		2,928	5,851	8,477	359	1,371
Loans without a specific valuation allowance
Recorded balance	102,305		9,421	72,991	14,849	3,569	1,475
Unpaid principal balance	122,833		10,380	89,839	16,931	4,098	1,585
Average balance	107,945		9,834	76,427	15,129	4,734	1,821
Total
Recorded balance	119,994		12,399	77,536	23,032	3,755	3,272
Unpaid principal balance	141,233		13,426	94,412	25,309	4,297	3,789
Specific valuation allowance	5,223		246	500	3,851	56	570
Average balance	126,931		12,762	82,278	23,606	5,093	3,192

Interest income recognized on impaired loans for the six months ended June 30, 2018 and 2017 was not significant.

23

The following tables present an aging analysis of the recorded investment in loans by loan class:

	June 30, 2018
(Dollars in thousands)	Total		Residential Real Estate	Commercial Real Estate	Other Commercial	Home Equity	Other Consumer
Accruing loans 30-59 days past due	$	24,813	1,017	13,424	5,908	2,617	1,847
Accruing loans 60-89 days past due	14,837		3,595	4,603	5,079	800	760
Accruing loans 90 days or more past due	12,751		1,050	5,958	5,242	311	190
Non-accrual loans	58,170		6,851	34,643	13,495	2,748	433
Total past due and non-accrual loans	110,571		12,513	58,628	29,724	6,476	3,230
Current loans receivable	7,838,101		822,869	4,326,153	1,910,711	504,567	273,801
Total loans receivable	$	7,948,672	835,382	4,384,781	1,940,435	511,043	277,031

	December 31, 2017
(Dollars in thousands)	Total		Residential Real Estate	Commercial Real Estate	Other Commercial	Home Equity	Other Consumer
Accruing loans 30-59 days past due	$	26,375	6,252	12,546	3,634	2,142	1,801
Accruing loans 60-89 days past due	11,312		794	5,367	3,502	987	662
Accruing loans 90 days or more past due	6,077		2,366	609	2,973	—	129
Non-accrual loans	44,833		4,924	27,331	8,298	3,338	942
Total past due and non-accrual loans	88,597		14,336	45,853	18,407	6,467	3,534
Current loans receivable	6,489,227		706,392	3,531,286	1,560,946	451,451	239,152
Total loans receivable	$	6,577,824	720,728	3,577,139	1,579,353	457,918	242,686

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:

	Three Months ended June 30, 2018
(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	8		1	4	1	2	—
Pre-modification recorded balance	$	5,273	227	4,623	171	252	—
Post-modification recorded balance	$	5,159	227	4,509	171	252	—
TDRs that subsequently defaulted
Number of loans	—		—	—	—	—	—
Recorded balance	$	—	—	—	—	—	—

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	Three Months ended June 30, 2017
(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	7		1	4	1	1	—
Pre-modification recorded balance	$	12,401	55	12,035	286	25	—
Post-modification recorded balance	$	9,719	55	9,353	286	25	—
TDRs that subsequently defaulted
Number of loans	—		—	—	—	—	—
Recorded balance	$	—	—	—	—	—	—

	Six Months ended June 30, 2018
(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	20		3	8	7	2	—
Pre-modification recorded balance	$	21,270	666	12,901	7,451	252	—
Post-modification recorded balance	$	21,156	666	12,787	7,451	252	—
TDRs that subsequently defaulted
Number of loans	1		1	—	—	—	—
Recorded balance	$	334	334	—	—	—	—

	Six Months ended June 30, 2017
(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	17		3	6	5	2	1
Pre-modification recorded balance	$	21,956	335	12,617	8,816	178	10
Post-modification recorded balance	$	19,274	335	9,935	8,816	178	10
TDRs that subsequently defaulted
Number of loans	1		—	—	1	—	—
Recorded balance	$	18	—	—	18	—	—

The modifications for the TDRs that occurred during the six months ended June 30, 2018 and 2017 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 $1,313,000 and $4,170,000 for the six months ended June 30, 2018 and 2017, respectively, for which OREO was received in full or partial satisfaction of the loans. The majority of such TDRs were in commercial real estate and home equity for the six months ended June 30, 2018 and 2017, respectively. At June 30, 2018 and December 31, 2017, the Company had $1,172,000 and $743,000, respectively, of consumer mortgage loans secured by residential real estate properties for which formal foreclosure proceedings are in process. At June 30, 2018 and December 31, 2017, the Company had $968,000 and $893,000, respectively, of OREO secured by residential real estate properties.

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Note 4. Goodwill

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

	Three Months ended			Six Months ended
(Dollars in thousands)	June 30, 2018		June 30, 2017	June 30, 2018	June 30, 2017
Net carrying value at beginning of period	$	289,535	147,053	177,811	147,053
Acquisitions	—		30,758	111,724	30,758
Net carrying value at end of period	$	289,535	177,811	289,535	177,811

The Company performed its annual goodwill impairment test during the third quarter of 2017 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 first half of 2018 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 June 30, 2018. 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. Accumulated impairment charges were $40,159,000 as of June 30, 2018 and December 31, 2017.

For additional information on goodwill related to acquisitions, see Note 12. 

Note 5. Variable Interest Entities

A VIE is a partnership, limited liability company, trust or other legal entity that meets one of the following criteria: 1) the entity’s equity investment at risk is not sufficient to permit the entity to finance its activities without additional subordinated financial support from other parties; 2) the holders of the equity investment at risk, as a group, lack the characteristics of a controlling financial interest; and 3) the voting rights of some holders of the equity investment at risk are disproportionate to their obligation to absorb losses or receive returns, and substantially all of the activities are conducted on behalf of the holder of equity investment at risk with disproportionately few voting rights. A VIE must be consolidated by the Company if it is deemed to be the primary beneficiary, which is the party involved with the VIE that has both: 1) the power to direct the activities of the VIE that most significantly affect the VIE’s economic performance; and 2) the obligation to absorb the losses of the VIE that could potentially be significant to the VIE or the right to receive benefits from the VIE that could potentially be significant to the VIE.

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 NMTC program provides federal tax incentives to investors to make investments in distressed communities and promotes economic improvements through the development of successful businesses in these communities. The NMTC is available to investors over a seven-year period and is subject to recapture if certain events occur during such period. The maximum exposure to loss in the CDEs 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 Company has evaluated the variable interests held by the Company in each CDE (NMTC) investment and determined the Company does not individually meet the characteristics of a primary beneficiary; however, the related-party group does meet the criteria as a group and substantially all of the activities of the CDEs either involve or are conducted on behalf of the Company. As a result, the Company is the primary beneficiary of the CDEs and their assets, liabilities, and results of operations are included in the Company’s consolidated financial statements. The primary activities of the CDEs are recognized in commercial loans 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.

26

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.

(Dollars in thousands)	June 30, 2018		December 31, 2017
Assets
Loans receivable	$	64,362	57,796
Accrued interest receivable	93		94
Other assets	37,164		15,885
Total assets	$	101,619	73,775
Liabilities
Other borrowed funds	$	9,696	7,964
Accrued interest payable	1		1
Other liabilities	27		98
Total liabilities	$	9,724	8,063

Unconsolidated Variable Interest Entities

The Company has equity investments in Low-Income Housing Tax Credit (“LIHTC”) partnerships with carrying values of $28,269,000 and $9,169,000 as of June 30, 2018 and December 31, 2017, respectively. The LIHTCs are indirect federal subsidies to finance low-income housing and are used in connection with both newly constructed and renovated residential rental buildings. Once a project is placed in service, it is generally eligible for the tax credit for ten consecutive years. To continue generating the tax credit and to avoid tax credit recapture, a LIHTC building must satisfy specific low-income housing compliance rules for a full fifteen-year period. 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 Company has evaluated the variable interests held by the Company in each LIHTC investment and determined that the Company does not have controlling financial interests in such investments, and is not the primary beneficiary. The Company reports the investments in the unconsolidated LIHTCs as other assets on the Company’s statements of financial condition. Total unfunded contingent commitments related to the Company’s LIHTC investments totaled $10,765,000 at June 30, 2018, of which $7,633,000 is expected to be fulfilled in 2018 and $3,132,000 is expected to be fulfilled in 2019. There were no impairment losses on the Company’s LIHTC investments during the six months ended June 30, 2018 and 2017.

The Company has elected to use the proportional amortization method, and more specifically the practical expedient method, for the amortization of all eligible LIHTC investments and amortization expense is recognized as a component of income tax expense. The following table summarizes the amortization expense and the amount of tax credits and other tax benefits recognized for qualified affordable housing project investments during the periods presented.

	Three Months ended			Six Months ended
(Dollars in thousands)	June 30, 2018		June 30, 2017	June 30, 2018	June 30, 2017
Amortization expense	$	1,030	640	1,921	1,143
Tax credits and other tax benefits recognized	1,423		976	2,663	1,752

The Company also 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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Note 6. Securities Sold Under Agreements to Repurchase

The Company’s securities sold under agreements to repurchase (“repurchase agreements”) totaled $361,515,000 and $362,573,000 at June 30, 2018 and December 31, 2017, respectively, and are secured by debt securities with carrying values of $503,935,000 and $475,601,000, 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:

	June 30, 2018
	Remaining Contractual Maturity of the Agreements
(Dollars in thousands)	Overnight and Continuous		30 - 90 Days	Greater Than 90 Days	Total
State and local governments	$	18,544	—	21,562	40,106
Residential mortgage-backed securities	319,731		—	—	319,731
Commercial mortgage-backed securities	1,678		—	—	1,678
Total	$	339,953	—	21,562	361,515

	December 31, 2017
	Remaining Contractual Maturity of the Agreements
(Dollars in thousands)	Overnight and Continuous		30 - 90 Days	Greater Than 90 Days	Total
Residential mortgage-backed securities	$	360,751	—	—	360,751
Commercial mortgage-backed securities	1,822		—	—	1,822
Total	$	362,573	—	—	362,573

Note 7. Derivatives and Hedging Activities

Interest Rate Swap Derivatives

As of June 30, 2018, the Company’s interest rate swap derivative financial instruments were designated as cash flow hedges and are summarized 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.

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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 and Federal Home Loan Bank (“FHLB”) advances as the cash flow hedge and these hedged items were determined to be fully effective during current and prior periods. As such, no amount of ineffectiveness has been included in the Company’s statements of operations for the six months ended June 30, 2018 and 2017. Therefore, the aggregate fair value of the interest rate swaps was recorded in other liabilities with changes recorded in OCI. 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 $3,840,000 and $3,973,000 for the six months ended June 30, 2018 and 2017, and is reported as a component of interest expense on deposits and FHLB advances. Unless the interest rate swaps are terminated during the next year, the Company expects $1,817,000 of the unrealized loss reported in OCI at June 30, 2018 to be reclassified to interest expense during the next twelve months.

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

	Three Months ended					Six Months ended
(Dollars in thousands)	June 30, 2018			June 30, 2017		June 30, 2018		June 30, 2017
Interest rate swaps
Amount of gain (loss) recognized in OCI (effective portion)	$	1,689		(2,108	)	6,068		(1,844	)
Amount of loss reclassified from OCI to interest expense	(577		)	(1,262	)	(1,477	)	(2,594	)
Amount of loss recognized in other non-interest expense (ineffective portion)	—			—		—		—

The following table discloses the offsetting of financial assets and interest rate swap derivative assets.

	June 30, 2018					December 31, 2017
(Dollars in thousands)	Gross Amount of Recognized Assets		Gross Amount Offset in the Statements of Financial Position		Net Amounts of Assets Presented in the Statements of Financial Position	Gross Amount of Recognized Assets	Gross Amount Offset in the Statements of Financial Position	Net Amounts of Assets Presented in the Statements of Financial Position
Interest rate swaps	$	1,386	(1,386	)	—	—	—	—

The following table discloses the offsetting of financial liabilities and interest rate swap derivative liabilities.

	June 30, 2018					December 31, 2017
(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	$	3,230	(1,386	)	1,844	9,389	—	9,389

Pursuant to the interest rate swap agreements, the Company pledged collateral to the counterparty in the form of debt securities totaling $5,243,000 at June 30, 2018. There was $0 collateral pledged from the counterparty to the Company as of June 30, 2018. 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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Residential Real Estate Derivatives

At June 30, 2018 and December 31, 2017, the Company had residential real estate derivatives for 1) commitments to fund certain residential real estate loans (interest rate locks) of $118,842,000 and $67,861,000, respectively, to be sold into the secondary market; and 2) forward commitments for the future delivery of residential real estate loans to third party investors. 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 the fair values of these derivatives are not recorded as gains on sale of loans because the changes were not significant.

Note 8. Other Expenses

Other expenses consists of the following:

	Three Months ended			Six Months ended
(Dollars in thousands)	June 30, 2018		June 30, 2017	June 30, 2018	June 30, 2017
Mergers and acquisition expenses	$	2,926	866	4,762	949
Consulting and outside services	1,795		984	3,174	2,404
Debit card expenses	1,148		1,794	2,788	3,512
Telephone	1,142		934	2,163	1,911
Employee expenses	1,142		1,125	1,933	1,914
Loan expenses	984		722	1,788	1,613
Postage	776		636	1,555	1,361
Printing and supplies	792		668	1,483	1,308
VIE amortization and other expenses	938		948	1,412	1,412
Business development	642		453	1,110	793
Accounting and audit fees	393		519	811	1,009
Legal fees	467		227	781	506
ATM expenses	345		382	634	694
Checking and operating expenses	354		362	467	727
Other	1,207		885	2,351	1,812
Total other expenses	$	15,051	11,505	27,212	21,925

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Note 9. Accumulated Other Comprehensive Loss

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

(Dollars in thousands)	Gains (Losses) on Available-For-Sale Debt Securities			Losses on Derivatives Used for Cash Flow Hedges		Total
Balance at December 31, 2016	$	1,639		(9,021	)	(7,382	)
Other comprehensive income (loss) before reclassifications	12,256			(1,129	)	11,127
Reclassification adjustments for losses included in net income	365			1,589		1,954
Net current period other comprehensive income	12,621			460		13,081
Balance at June 30, 2017	$	14,260		(8,561	)	5,699
Balance at December 31, 2017	$	5,031		(7,010	)	(1,979	)
Other comprehensive (loss) income before reclassifications	(24,195		)	4,530		(19,665	)
Reclassification adjustments for losses included in net income	259			1,103		1,362
Net current period other comprehensive (loss) income	(23,936		)	5,633		(18,303	)
Balance at June 30, 2018	$	(18,905	)	(1,377	)	(20,282	)

Note 10. 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 restricted stock awards were vested and stock options were exercised, using the treasury stock method.

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

	Three Months ended			Six Months ended
(Dollars in thousands, except per share data)	June 30, 2018		June 30, 2017	June 30, 2018	June 30, 2017
Net income available to common stockholders, basic and diluted	$	44,384	33,687	82,943	64,942
Average outstanding shares - basic	84,514,257		77,546,236	82,671,816	77,061,867
Add: dilutive restricted stock awards and stock options	45,011		46,089	62,591	63,810
Average outstanding shares - diluted	84,559,268		77,592,325	82,734,407	77,125,677
Basic earnings per share	$	0.53	0.43	1.00	0.84
Diluted earnings per share	$	0.52	0.43	1.00	0.84

There were no restricted stock awards or stock options excluded from the diluted average outstanding share calculation for the six months ended June 30, 2018 and 2017, respectively. Anti-dilution occurs when the unrecognized compensation cost per share of a restricted stock award or the exercise price of a stock option exceeds the market price of the Company’s stock.

31

Note 11. 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 six month periods ended June 30, 2018 and 2017.

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 June 30, 2018.

Debt securities, available-for-sale: fair value for available-for-sale debt 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 debt 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 debt 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.

Loans held for sale, at fair value: loans held for sale measured at fair value, for which an active secondary market and readily available market prices exist, are initially valued at the transaction price and are subsequently valued by using quoted prices for similar assets, adjusted for specific attributes of that loan or other observable market data, such as outstanding commitments from third party investors. Loans held for sale measured at fair value are classified within Level 2. Included in gain on sale of loans were net losses of $(21,000) and $0 for the six month periods ended June 30, 2018 and 2017, respectively, from the changes in fair value of these loans held for sale measured at fair value. Electing to measure loans held for sale at fair value reduces certain timing differences and better matches changes in fair value of these assets with changes in the value of the derivative instruments used to economically hedge them without the burden of complying with the requirements for hedge accounting.

32

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.

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 June 30, 2018		Quoted Prices in Active  Markets for Identical Assets (Level 1)	Significant Other Observable Inputs (Level 2)	Significant Unobservable Inputs (Level 3)
Debt securities, available-for-sale
U.S. government and federal agency	$	28,093	—	28,093	—
U.S. government sponsored enterprises	119,360		—	119,360	—
State and local governments	653,918		—	653,918	—
Corporate bonds	318,422		—	318,422	—
Residential mortgage-backed securities	886,348		—	886,348	—
Commercial mortgage-backed securities	171,211		—	171,211	—
Loans held for sale, at fair value	53,788		—	53,788	—
Total assets measured at fair value on a recurring basis	$	2,231,140	—	2,231,140	—
Interest rate swaps	$	1,844	—	1,844	—
Total liabilities measured at fair value on a recurring basis	$	1,844	—	1,844	—

			Fair Value Measurements At the End of the Reporting Period Using
(Dollars in thousands)	Fair Value December 31, 2017		Quoted Prices in Active  Markets for Identical Assets (Level 1)	Significant Other Observable Inputs (Level 2)	Significant Unobservable Inputs (Level 3)
Debt securities, available-for-sale
U.S. government and federal agency	$	31,127	—	31,127	—
U.S. government sponsored enterprises	19,091		—	19,091	—
State and local governments	629,501		—	629,501	—
Corporate bonds	216,762		—	216,762	—
Residential mortgage-backed securities	779,283		—	779,283	—
Commercial mortgage-backed securities	102,479		—	102,479	—
Loans held for sale, at fair value	38,833		—	38,833	—
Total assets measured at fair value on a recurring basis	$	1,817,076	—	1,817,076	—
Interest rate swaps	$	9,389	—	9,389	—
Total liabilities measured at fair value on a recurring basis	$	9,389	—	9,389	—

33

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 June 30, 2018.

Other real estate owned: OREO is initially recorded at fair value less estimated cost to sell, establishing a new cost basis. OREO is subsequently accounted for at lower of cost or 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.

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 department reviews 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 June 30, 2018		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	$	735	—	—	735
Collateral-dependent impaired loans, net of ALLL	4,302		—	—	4,302
Total assets measured at fair value on a non-recurring basis	$	5,037	—	—	5,037

34

			Fair Value Measurements At the End of the Reporting Period Using
(Dollars in thousands)	Fair Value December 31, 2017		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	$	2,296	—	—	2,296
Collateral-dependent impaired loans, net of ALLL	6,339		—	—	6,339
Total assets measured at fair value on a non-recurring basis	$	8,635	—	—	8,635

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 June 30, 2018		Quantitative Information about Level 3 Fair Value Measurements
(Dollars in thousands)			Valuation Technique	Unobservable Input	Range (Weighted-Average) 1
Other real estate owned	$	735	Sales comparison approach	Selling costs	8.0% - 15.0% (9.3%)
Collateral-dependent impaired loans, net of ALLL	$	13	Cost approach	Selling costs	20.0% - 20.0% (20.0%)
	4,289		Sales comparison approach	Selling costs	8.0% - 20.0% (10.3%)
	$	4,302

	Fair Value December 31, 2017		Quantitative Information about Level 3 Fair Value Measurements
(Dollars in thousands)			Valuation Technique	Unobservable Input	Range (Weighted-Average) 1
Other real estate owned	$	2,296	Sales comparison approach	Selling costs	0.0% - 10.0% (6.0%)
Collateral-dependent impaired loans, net of ALLL	$	238	Cost approach	Selling costs	10.0% - 20.0% (10.6%)
	2,541		Sales comparison approach	Selling costs	8.0% - 10.0% (9.4%)
	3,560		Combined approach	Selling costs	10.0% - 10.0% (10.0%)
	$	6,339

______________________________

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

35

Fair Value 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 not carried at fair value. Receivables and payables due in one year or less, equity securities without readily determinable fair values and deposits with no defined or contractual maturities are excluded.

			Fair Value Measurements At the End of the Reporting Period Using
(Dollars in thousands)	Carrying Amount June 30, 2018		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	$	368,132	368,132	—	—
Debt securities, held-to-maturity	620,409		—	618,509	—
Loans receivable, net of ALLL	7,817,108		—	—	7,814,402
Total financial assets	$	8,805,649	368,132	618,509	7,814,402
Financial liabilities
Term deposits	$	1,100,158	—	1,101,821	—
FHLB advances	395,037		—	395,132	—
Repurchase agreements and other borrowed funds	371,432		—	371,435	—
Subordinated debentures	134,058		—	121,325	—
Total financial liabilities	$	2,000,685	—	1,989,713	—

			Fair Value Measurements At the End of the Reporting Period Using
(Dollars in thousands)	Carrying Amount December 31, 2017		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	$	200,004	200,004	—	—
Debt securities, held-to-maturity	648,313		—	660,086	—
Loans receivable, net of ALLL	6,448,256		—	6,219,515	114,771
Total financial assets	$	7,296,573	200,004	6,879,601	114,771
Financial liabilities
Term deposits	$	977,302	—	978,803	—
FHLB advances	353,995		—	352,886	—
Repurchase agreements and other borrowed funds	370,797		—	370,797	—
Subordinated debentures	126,135		—	98,023	—
Total financial liabilities	$	1,828,229	—	1,800,509	—

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Note 12. Mergers and Acquisitions

On February 28, 2018, the Company acquired 100 percent of the outstanding common stock of Inter-Mountain Bancorp., Inc. and its wholly-owned subsidiary, First Security Bank, a community bank based in Bozeman, Montana. FSB provides banking services to individuals and businesses throughout Montana with banking offices located in Bozeman, Belgrade, Big Sky, Choteau, Fairfield, Fort Benton, Three Forks, Vaughn and West Yellowstone. The acquisition expands the Company’s presence in the Bozeman and Golden Triangle markets in Montana and further diversifies the Company’s loan, customer and deposit base. FSB merged into the Bank and became a new bank division headquartered in Bozeman and the Bank’s existing Bozeman-based division, Big Sky Western Bank, combined with the new FSB division. The agriculture-focused northern branches of FSB combined with the Bank’s First Bank of Montana division. The preliminary value of the FSB acquisition was $181,043,000 and resulted in the Company issuing 4,654,091 shares of its common stock. 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, 2018 acquisition date. The excess of the preliminary 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 FSB. None of the goodwill is deductible for income tax purposes as the acquisition was accounted for as a tax-free exchange.

On January 31, 2018, the Company acquired 100 percent of the outstanding common stock of Columbine Capital Corp. and its wholly-owned subsidiary, Collegiate Peaks Bank, a community bank based in Buena Vista, Colorado. Collegiate provides banking services to businesses and individuals in the Mountain and Front Range communities of Colorado, with banking offices located in Aurora, Buena Vista, Denver and Salida. The acquisition expands the Company’s presence in Colorado to the mountains and along the Front Range and further diversifies the Company’s loan, customer and deposit base. Collegiate merged into the Bank and operates as a separate Bank division under its existing name and management team. The preliminary value of the Collegiate acquisition was $96,083,000 and resulted in the Company issuing 1,778,777 shares of its common stock and paying $16,265,000 in cash in exchange for all of Collegiate’s outstanding common stock shares and $10,054,000 due to an effective settlement of pre-existing receivable from Columbine Capital Corp. 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 January 31, 2018 acquisition date. The excess of the preliminary 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 Collegiate. None of the goodwill is deductible for income tax purposes as the acquisition was accounted for as a tax-free exchange.

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The assets and liabilities of FSB and Collegiate were recorded on the Company’s consolidated statements of financial condition at their preliminary estimated fair values as of the February 28, 2018 and January 31, 2018 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 preliminary fair value estimates of the consideration transferred, the total identifiable net assets acquired and the resulting goodwill arising from the FSB and Collegiate acquisitions. The Company is continuing to obtain information to determine the fair values of the acquired assets and liabilities.

	FSB		Collegiate
(Dollars in thousands)	February 28, 2018		January 31, 2018
Fair value of consideration transferred
Fair value of Company shares issued, net of equity issuance costs	$	181,043	69,764
Cash consideration for outstanding shares	—		16,265
Effective settlement of a pre-existing relationship	—		10,054
Total fair value of consideration transferred	181,043		96,083
Recognized amounts of identifiable assets acquired and liabilities assumed
Identifiable assets acquired
Cash and cash equivalents	24,397		93,136
Debt securities	271,865		42,177
Loans receivable	627,767		354,252
Core deposit intangible 1	31,053		10,275
Accrued income and other assets	78,325		15,911
Total identifiable assets acquired	1,033,407		515,751
Liabilities assumed
Deposits	877,586		437,171
Borrowings 2	36,880		12,509
Accrued expenses and other liabilities	14,175		5,435
Total liabilities assumed	928,641		455,115
Total identifiable net assets	104,766		60,636
Goodwill recognized	$	76,277	35,447

______________________________

¹ The core deposit intangible for each acquisition was determined to have an estimated life of 10 years.

² Borrowings assumed with the FSB acquisition include Tier 2 subordinated debentures of $7,903,000.

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The preliminary fair values of the FSB and Collegiate assets acquired include loans with preliminary fair values of $627,767,000 and $354,252,000, respectively. The gross principal and contractual interest due under the FSB and Collegiate contracts was $632,370,000 and $355,364,000, respectively. The Company evaluated the principal and contractual interest due at each of the acquisition dates and determined that insignificant amounts were not expected to be collectible.

The Company incurred $3,850,000 and $828,000 of expenses in connection with the FSB and Collegiate acquisitions, respectively, during the six months ended June 30, 2018. Mergers and acquisition expenses are included in other expense in the Company's consolidated statements of operations and consist of third-party costs, conversion costs and employee retention and severance expenses.

Total income consisting of net interest income and non-interest income of the acquired operations of FSB was approximately $17,044,000 and net income was approximately $3,637,000 from February 28, 2018 to June 30, 2018. Total income consisting of net interest income and non-interest income of the acquired operations of Collegiate was approximately $10,218,000 and net income was approximately $2,681,000 from January 31, 2018 to June 30, 2018.

The following unaudited pro forma summary presents consolidated information of the Company as if the FSB and Collegiate acquisitions had occurred on January 1, 2017:

	Three Months ended			Six Months ended
(Dollars in thousands)	June 30, 2018		June 30, 2017	June 30, 2018	June 30, 2017
Net interest income and non-interest income	$	140,382	129,461	270,450	250,107
Net income	44,384		39,094	78,332	74,551

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Item 2. 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 Glacier Bancorp, Inc.’s (“Company”) 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 “Part I. Item 1. Financial Statements.”

FORWARD-LOOKING STATEMENTS

This Form 10-Q 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. In addition to the factors set forth in the sections titled “Risk Factors,” “Business” and “Management’s Discussion and Analysis of Financial Condition and Results of Operations”, as applicable, in this report and the Annual Report on Form 10-K for the year ended December 31, 2017 (the “2017 Annual Report”), the following factors, among others, could cause actual results to differ materially from the anticipated results:

• 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;

• changes in the cost and scope of insurance from the Federal Deposit Insurance Corporation (“FDIC”) and other third parties;

• legislative or regulatory changes, including increased banking and consumer protection regulation that adversely affect the Company’s business, both generally and as a result of the Company exceeding $10 billion in total consolidated assets;

• 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 reputation of banks and the financial services industry could deteriorate, which could adversely affect the Company's ability to obtain (and maintain) customers;

• competition among financial institutions in the Company's markets may increase significantly;

• 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;

• the projected business and profitability of an expansion or the opening of a new branch could be lower than expected;

• 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 chief executive officer (“CEO”), the senior management team and the Presidents of Glacier Bank (“Bank”) divisions;

• material failure, potential interruption or breach in security of the Company’s systems and technological changes which could expose us to new risks (e.g., cybersecurity), fraud or system failures;

• natural disasters, including fires, floods, earthquakes, and other unexpected events;

• the Company’s success in managing risks involved in the foregoing; and

• the effects of any reputational damage to the Company resulting from any of the foregoing.

Please take into account that forward-looking statements speak only as of the date of this Form 10-Q. 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.

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MANAGEMENT’S DISCUSSION AND ANALYSIS

OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

Financial Highlights

	At or for the Three Months ended							At or for the Six Months ended
(Dollars in thousands, except per share and market data)	Jun 30, 2018			Mar 31, 2018		Jun 30, 2017		Jun 30, 2018		Jun 30, 2017
Operating results
Net income	$	44,384		38,559		33,687		82,943		64,942
Basic earnings per share	$	0.53		0.48		0.43		1.00		0.84
Diluted earnings per share	$	0.52		0.48		0.43		1.00		0.84
Dividends declared per share	$	0.26		0.23		0.21		0.49		0.42
Market value per share
Closing	$	38.68		38.38		36.61		38.68		36.61
High	$	41.47		41.24		37.41		41.47		38.17
Low	$	35.77		36.72		31.56		35.77		31.56
Selected ratios and other data
Number of common stock shares outstanding	84,516,650			84,511,472		78,001,890		84,516,650		78,001,890
Average outstanding shares - basic	84,514,257			80,808,904		77,546,236		82,671,816		77,061,867
Average outstanding shares - diluted	84,559,268			80,887,135		77,592,325		82,734,407		77,125,677
Return on average assets (annualized)	1.53		%	1.50	%	1.39	%	1.52	%	1.37	%
Return on average equity (annualized)	12.07		%	11.90	%	11.37	%	11.99	%	11.28	%
Efficiency ratio	55.44		%	57.80	%	52.89	%	56.54	%	54.17	%
Dividend payout ratio	49.06		%	47.92	%	48.84	%	49.00	%	50.00	%
Loan to deposit ratio	84.92		%	81.83	%	81.86	%	84.92	%	81.86	%
Number of full time equivalent employees	2,605			2,545		2,265		2,605		2,265
Number of locations	167			166		145		167		145
Number of ATMs	221			223		199		221		199

The Company reported net income of $44.4 million for the current quarter, an increase of $10.7 million, or 32 percent, from the $33.7 million of net income for the prior year second quarter. Diluted earnings per share for the current quarter was $0.52 per share, an increase of $0.09, or 21 percent, from the prior year second quarter diluted earnings per share of $0.43. Included in the current quarter was $2.9 million of acquisition-related expenses.

Net income for the six months ended June 30, 2018 was $82.9 million, an increase of $18.0 million, or 28 percent, from the $64.9 million of net income for the first six months of the prior year. Diluted earnings per share for the first half of 2018 was $1.00 per share, an increase of $0.16, or 19 percent, from the diluted earnings per share of $0.84 for the same period in the prior year.

41

Acquisitions

In February 2018, the Company completed its acquisition of Inter-Mountain Bancorp, Inc. and its wholly-owned subsidiary, First Security Bank, a community bank based in Bozeman, Montana (collectively, “FSB”). In January 2018, the Company completed its acquisition of Columbine Capital Corp., and its wholly-owned subsidiary, Collegiate Peaks Bank, a community bank based in Buena Vista, Colorado (collectively, “Collegiate”). 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. For additional information regarding the acquisitions, see Note 12 to the Consolidated Financial Statements in “Part I. Item 1. Financial Statements.” The following table discloses the preliminary fair value estimates of selected classifications of assets and liabilities acquired:

	FSB		Collegiate
(Dollars in thousands)	February 28, 2018		January 31, 2018	Total
Total assets	$	1,109,684	551,198	1,660,882
Debt securities	271,865		42,177	314,042
Loans receivable	627,767		354,252	982,019
Non-interest bearing deposits	301,468		170,022	471,490
Interest bearing deposits	576,118		267,149	843,267
Borrowings	36,880		12,509	49,389

Financial Condition Analysis

Assets

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

										$ Change from
(Dollars in thousands)	Jun 30, 2018			Mar 31, 2018		Dec 31, 2017		Jun 30, 2017		Mar 31, 2018		Dec 31, 2017		Jun 30, 2017
Cash and cash equivalents	$	368,132		451,048		200,004		237,590		(82,916	)	168,128		130,542
Debt securities, available-for-sale	2,177,352			2,154,845		1,778,243		2,142,472		22,507		399,109		34,880
Debt securities, held-to-maturity	620,409			634,413		648,313		659,347		(14,004	)	(27,904	)	(38,938	)
Total debt securities	2,797,761			2,789,258		2,426,556		2,801,819		8,503		371,205		(4,058	)
Loans receivable
Residential real estate	835,382			831,021		720,728		712,726		4,361		114,654		122,656
Commercial real estate	4,384,781			4,251,003		3,577,139		3,393,753		133,778		807,642		991,028
Other commercial	1,940,435			1,839,293		1,579,353		1,549,067		101,142		361,082		391,368
Home equity	511,043			489,879		457,918		445,245		21,164		53,125		65,798
Other consumer	277,031			258,834		242,686		244,971		18,197		34,345		32,060
Loans receivable	7,948,672			7,670,030		6,577,824		6,345,762		278,642		1,370,848		1,602,910
Allowance for loan and lease losses	(131,564		)	(127,608	)	(129,568	)	(129,877	)	(3,956	)	(1,996	)	(1,687	)
Loans receivable, net	7,817,108			7,542,422		6,448,256		6,215,885		274,686		1,368,852		1,601,223
Other assets	914,643			876,050		631,533		644,200		38,593		283,110		270,443
Total assets	$	11,897,644		11,658,778		9,706,349		9,899,494		238,866		2,191,295		1,998,150

42

The Company successfully executed its strategy to stay below $10 billion in total assets as of December 31, 2017 to delay the impact of the Durbin Amendment for one additional year. The Durbin Amendment, which was passed as part of Dodd-Frank Wall Street Reform and Consumer Protection Act (“Dodd-Frank Act”), establishes limits on the amount of interchange fees that can be charged to merchants for debit card processing and will reduce the Company’s service charge fee income in the future. As a result, the Company’s annual service charge fee income is expected to decline by approximately $14 - $16 million (pre-tax) beginning July 2019. During the year, the Company surpassed $10 billion in total assets and ended the current quarter at $11.897 billion, which was an increase of $2.191 billion, or 23 percent, from the prior year end resulting from current year acquisitions along with organic growth in loans.

Total debt securities of $2.798 billion at June 30, 2018 increased $8.5 million, or 30 basis points, during the current quarter and decreased $4.1 million, or 14 basis points, from the prior year second quarter. Debt securities represented 24 percent of total assets at June 30, 2018 compared to 28 percent of total assets at June 30, 2017.

The Company had a successful quarter in loan growth and the loan portfolio of $7.9 billion increased $279 million, or 15 percent annualized, during the current quarter. The loan category with the largest increase was commercial real estate loans which increased $134 million, or 3 percent. Excluding the FSB and Collegiate acquisitions, the loan portfolio increased $621 million, or 10 percent, since June 30, 2017 and was primarily driven by growth in commercial real estate loans, which increased $373 million, or 11 percent.

Liabilities

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

						$ Change from
(Dollars in thousands)	Jun 30, 2018		Mar 31, 2018	Dec 31, 2017	Jun 30, 2017	Mar 31, 2018		Dec 31, 2017		Jun 30, 2017
Deposits
Non-interest bearing deposits	$	2,914,885	2,811,469	2,311,902	2,234,058	103,416		602,983		680,827
NOW and DDA accounts	2,354,214		2,400,693	1,695,246	1,717,351	(46,479	)	658,968		636,863
Savings accounts	1,330,637		1,328,047	1,082,604	1,059,717	2,590		248,033		270,920
Money market deposit accounts	1,723,681		1,778,068	1,512,693	1,608,994	(54,387	)	210,988		114,687
Certificate accounts	927,608		955,105	817,259	886,504	(27,497	)	110,349		41,104
Core deposits, total	9,251,025		9,273,382	7,419,704	7,506,624	(22,357	)	1,831,321		1,744,401
Wholesale deposits	172,550		145,463	160,043	291,339	27,087		12,507		(118,789	)
Deposits, total	9,423,575		9,418,845	7,579,747	7,797,963	4,730		1,843,828		1,625,612
Securities sold under agreements to repurchase	361,515		395,794	362,573	451,050	(34,279	)	(1,058	)	(89,535	)
Federal Home Loan Bank advances	395,037		155,057	353,995	211,505	239,980		41,042		183,532
Other borrowed funds	9,917		8,204	8,224	5,817	1,713		1,693		4,100
Subordinated debentures	134,058		134,061	126,135	126,063	(3	)	7,923		7,995
Other liabilities	99,550		92,793	76,618	97,139	6,757		22,932		2,411
Total liabilities	$	10,423,652	10,204,754	8,507,292	8,689,537	218,898		1,916,360		1,734,115

Core deposits of $9.251 billion as of June 30, 2018 decreased $22.4 million, or 24 basis points, from the prior quarter. Excluding acquisitions, core deposits increased $430 million, or 6 percent, from the prior year second quarter. Non-interest bearing deposits as of June 30, 2018 increased $103 million, or 4 percent from the prior quarter and organically increased $209 million, or 9 percent from the prior year second quarter. The Company added back $395 million of deposits during the first quarter of 2018 that were previously moved off-balance sheet during the second half of 2017 as part of its strategy to stay below $10 billion in total assets through December 31, 2017.

43

Securities sold under agreements to repurchase (“repurchase agreements”) of $362 million at June 30, 2018 decreased $34.3 million, or 9 percent, over prior quarter and decreased $89.5 million, or 20 percent, over the prior year second quarter. Federal Home Loan Bank (“FHLB”) advances of $395 million at June 30, 2018, increased $240 million over the prior quarter to fund loan growth during the current quarter.

Stockholders’ Equity

The following table summarizes the stockholders’ equity balances as of the dates indicated: 

										$ Change from
(Dollars in thousands, except per share data)	Jun 30, 2018			Mar 31, 2018		Dec 31, 2017		Jun 30, 2017		Mar 31, 2018		Dec 31, 2017		Jun 30, 2017
Common equity	$	1,494,274		1,471,047		1,201,036		1,204,258		23,227		293,238		290,016
Accumulated other comprehensive (loss) income	(20,282		)	(17,023	)	(1,979	)	5,699		(3,259	)	(18,303	)	(25,981	)
Total stockholders’ equity	1,473,992			1,454,024		1,199,057		1,209,957		19,968		274,935		264,035
Goodwill and core deposit intangible, net	(342,243		)	(343,991	)	(191,995	)	(193,249	)	1,748		(150,248	)	(148,994	)
Tangible stockholders’ equity	$	1,131,749		1,110,033		1,007,062		1,016,708		21,716		124,687		115,041

Stockholders’ equity to total assets	12.39		%	12.47	%	12.35	%	12.22	%
Tangible stockholders’ equity to total tangible assets	9.79		%	9.81	%	10.58	%	10.47	%
Book value per common share	$	17.44		17.21		15.37		15.51		0.23	2.07	1.93
Tangible book value per common share	$	13.39		13.13		12.91		13.03		0.26	0.48	0.36

Tangible stockholders’ equity of $1.132 billion at June 30, 2018 increased $22 million compared to the prior quarter which was the result of earnings retention. Tangible stockholders’ equity increased $115 million over the prior year second quarter which was the result of earnings retention, $181 million and $69.8 million of Company stock issued for the acquisitions of FSB and Collegiate, respectively; these increases more than offset the increase in goodwill and core deposit intangibles associated with the acquisitions. Tangible book value per common share at quarter end increased $0.26 per share from the prior quarter and increased $0.36 per share from a year ago.

Cash Dividends

On June 27, 2018, the Company’s Board of Directors declared a quarterly cash dividend of $0.26 per share, an increase of $0.03 per share, or 13 percent from the prior quarter. The dividend was payable July 19, 2018 to shareholders of record on July 10, 2018. The dividend was the 133rd consecutive quarterly dividend. Dividends declared for the first half of 2018 were $0.49 per share, an increase of $0.07 per share, or 17 percent, over the same period last year. Future cash dividends will depend on a variety of factors, including net income, capital, asset quality, general economic conditions and regulatory considerations.

44

Operating Results for Three Months Ended June 30, 2018

Compared to March 31, 2018 and June 30, 2017

Income Summary

The following table summarizes revenue for the periods indicated: 

	Three Months ended							$ Change from
(Dollars in thousands)	Jun 30, 2018			Mar 31, 2018		Jun 30, 2017		Mar 31, 2018	Jun 30, 2017
Net interest income
Interest income	$	117,715		103,066		94,032		14,649	23,683
Interest expense	9,161			7,774		7,774		1,387	1,387
Total net interest income	108,554			95,292		86,258		13,262	22,296
Non-interest income
Service charges and other fees	18,804			16,871		17,495		1,933	1,309
Miscellaneous loan fees and charges	2,243			1,477		1,092		766	1,151
Gain on sale of loans	8,142			6,097		7,532		2,045	610
Loss on sale of investments	(56		)	(333	)	(522	)	277	466
Other income	2,695			1,974		2,059		721	636
Total non-interest income	31,828			26,086		27,656		5,742	4,172
Total income	$	140,382		121,378		113,914		19,004	26,468
Net interest margin (tax-equivalent)	4.17		%	4.10	%	4.12	%

Net Interest Income

The current quarter interest income of $118 million increased $14.6 million, or 14 percent, from the prior quarter and increased $23.7 million, or 25 percent, over the prior year second quarter with both increases primarily attributable to the increase in interest income from commercial loans. Interest income on commercial loans increased $10.3 million, or 16 percent, from the prior quarter and increased $19.6 million, or 35 percent, from the prior year second quarter.

The current quarter interest expense of $9.2 million increased $1.4 million, or 18 percent, from the prior quarter and increased $1.4 million, or 18 percent, from the prior year second quarter. The total cost of funding (including non-interest bearing deposits) for the current quarter was 36 basis points compared to 35 basis points for the prior quarter and 37 basis points for the prior year second quarter. The 1 basis point increase from the prior quarter was driven by an increase in deposit rates which was partially offset by the increase in non-interest bearing deposits.

The Company’s net interest margin as a percentage of earning assets, on a tax-equivalent basis, for the current quarter was 4.17 percent compared to 4.10 percent in the prior quarter. The 7 basis points increase in the net interest margin was primarily the result of increased yields on the loan portfolio and also included a 2 basis points increase in loan discount accretion from the fair value adjustments of recently acquired banks. The current quarter net interest margin increased 5 basis points over the prior year second quarter net interest margin of 4.12 percent. Included in the current quarter margin was a 14 basis point decrease due to the reduction in the federal corporate income tax rate in 2018 by the Tax Cut and Jobs Act (“Tax Act”). The increase in the core margin from the prior year second quarter resulted from the remix of earning assets to higher yielding loans, increased yields on the loan portfolio, and stable funding costs.

45

Non-interest Income

Non-interest income for the current quarter totaled $31.8 million, an increase of $5.7 million, or 22 percent, from the prior quarter and an increase of $4.2 million, or 15 percent, over the same quarter last year. Service charges and other fees of $18.8 million for the current quarter, increased $1.9 million, or 11 percent, from the prior quarter as a result of seasonality and the increased number of accounts, including from acquisitions. Service charges and other fees increased $1.3 million, 7 percent, from the prior year second quarter primarily due to the increased number of accounts from organic growth and acquisitions. Miscellaneous loan fees and charges increased $766 thousand, or 52 percent from prior quarter and increased $1.2 million, or 105 percent, from the prior year second quarter as a result of the recent acquisitions and increased loan growth. Gain on sale of loans increased $2.0 million, or 34 percent, from the prior quarter as a result of seasonality.

Non-interest Expense

The following table summarizes non-interest expense for the periods indicated:

	Three Months ended				$ Change from
(Dollars in thousands)	Jun 30, 2018		Mar 31, 2018	Jun 30, 2017	Mar 31, 2018	Jun 30, 2017
Compensation and employee benefits	$	49,023	45,721	39,498	3,302	9,525
Occupancy and equipment	7,662		7,274	6,560	388	1,102
Advertising and promotions	2,530		2,170	2,169	360	361
Data processing	4,241		3,967	3,409	274	832
Other real estate owned	211		72	442	139	(231	)
Regulatory assessments and insurance	1,329		1,206	1,087	123	242
Core deposit intangibles amortization	1,748		1,056	639	692	1,109
Other expenses	15,051		12,161	11,505	2,890	3,546
Total non-interest expense	$	81,795	73,627	65,309	8,168	16,486

Total non-interest expense of $81.8 million for the current quarter increased $8.2 million, or 11 percent, over the prior quarter and increased $16.5 million, or 25 percent, over the prior year second quarter. Compensation and employee benefits increased by $3.3 million, or 7 percent, from the prior quarter due to the increased number of employees from acquisitions. Compensation and employee benefits increased by $9.5 million, or 24 percent, from the prior year second quarter due to the increased number of employees from acquisitions and organic growth combined with annual salary increases. Occupancy and equipment expense increased $388 thousand, or 5 percent, over the prior quarter and increased $1.1 million, or 17 percent, over the prior year second quarter and was attributable to increased costs from acquisitions. Data processing expense increased $274 thousand, or 7 percent, from the prior quarter and increased $832 thousand, or 24 percent, from the prior year second quarter due to increased expenses from the acquisitions. Other expenses increased $2.9 million, or 24 percent, from the prior quarter and increased $3.5 million, or 31 percent, from the prior year second quarter primarily from an increase in acquisition-related expenses. Acquisition-related expenses were $2.9 million during the current quarter compared to $1.8 million in the prior quarter and $867 thousand in the prior year second quarter.

46

Efficiency Ratio

The current quarter efficiency ratio was 55.44 percent, a 236 basis point improvement from the prior quarter efficiency ratio of 57.80 percent. The decrease was the result of an increase in interest income and seasonal increases in gain on sale of loans and deposit service charges combined with the Company controlling operating costs.

Provision for Loan Losses

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

(Dollars in thousands)	Provision for Loan Losses		Net Charge-Offs		Allowance for Loan and Lease Losses 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
Second quarter 2018	$	4,718	$	762	1.66	%	0.50	%	0.71	%
First quarter 2018	795		2,755		1.66	%	0.59	%	0.64	%
Fourth quarter 2017	2,886		2,894		1.97	%	0.57	%	0.68	%
Third quarter 2017	3,327		3,628		1.99	%	0.45	%	0.67	%
Second quarter 2017	3,013		2,362		2.05	%	0.49	%	0.70	%
First quarter 2017	1,598		1,944		2.20	%	0.67	%	0.75	%
Fourth quarter 2016	1,139		4,101		2.28	%	0.45	%	0.76	%
Third quarter 2016	626		478		2.37	%	0.49	%	0.84	%

Net charge-offs for the current quarter were $762 thousand compared to $2.8 million for the prior quarter and $2.4 million from the same quarter last year. Current quarter provision for loan losses was $4.7 million, compared to $795 thousand in the prior quarter and $3.0 million in the prior year second quarter. Loan portfolio growth, composition, average loan size, credit quality considerations, and other environmental factors will continue to determine the level of the loan loss provision. 

The determination of the allowance for loan and lease losses (“ALLL” or “allowance”) and the related provision for loan losses is a critical accounting estimate that involves management’s judgments about current environmental factors which affect loan losses, such factors including economic conditions, changes in collateral values, net charge-offs, and other factors discussed below in “Additional Management’s Discussion and Analysis.”

47

Operating Results For Six Months endedJune 30, 2018

Compared to June 30, 2017

Income Summary

The following table summarizes revenue for the periods indicated:

	Six Months ended						$ Change			% Change
(Dollars in thousands)	June 30, 2018			June 30, 2017
Net interest income
Interest income	$	220,781		$	181,660		$	39,121		22	%
Interest expense	16,935			15,140			1,795			12	%
Total net interest income	203,846			166,520			37,326			22	%
Non-interest income
Service charges and other fees	35,675			33,128			2,547			8	%
Miscellaneous loan fees and charges	3,720			2,072			1,648			80	%
Gain on sale of loans	14,239			13,890			349			3	%
Loss on sale of investments	(389		)	(622		)	233			(37	)%
Other income	4,669			4,877			(208		)	(4	)%
Total non-interest income	57,914			53,345			4,569			9	%
Total income	$	261,760		$	219,865		$	41,895		19	%
Net interest margin (tax-equivalent)	4.14		%	4.08		%

Net Interest Income

Interest income for the the first six months of 2018 increased $39.1 million, or 22 percent, from the first six months of 2017 and was primarily attributable to a $35.2 million increase in interest income from commercial loans. Interest expense of $16.9 million for the first half of 2018 increased $1.8 million over the prior year same period. Interest expense on deposits decreased $408 thousand, or 5 percent, from the prior year and was due to the decrease in wholesale deposits. Interest expense on repurchase agreements, FHLB advances, and subordinated debt increased $2.2 million, or 36 percent, over the prior year and was primarily driven by the increase in interest rates. The total funding cost (including non-interest bearing deposits) for 2018 was 36 basis points compared to 37 basis points for 2017.

The net interest margin as a percentage of earning assets, on a tax-equivalent basis, for the first six months of 2018 was 4.14 percent, a 6 basis points increase from the net interest margin of 4.08 percent for the first half of 2017. Included in the current year margin was a 14 basis points decrease compared to the prior year driven by the reduction in the federal corporate income tax rate. The increase in the margin was principally due to a shift in earning assets to higher yielding loans along with an increase in yields on the loan portfolio combined with stable cost of funds.

Non-interest Income

Non-interest income of $57.9 million for the first six months of 2018 increased $4.6 million, or 9 percent, over the same period last year. Service charges and other fees of $35.7 million for 2018 increased $2.5 million, or 8 percent, from the prior year as a result of an increased number of deposit accounts from organic growth and acquisitions. Miscellaneous loan fees and charges for the first half of 2018 increased $1.6 million, or 80 percent from the prior year as a result of the recent acquisitions and increased loan growth.

48

Non-interest Expense

The following table summarizes non-interest expense for the periods indicated:

	Six Months ended				$ Change			% Change
(Dollars in thousands)	June 30, 2018		June 30, 2017
Compensation and employee benefits	$	94,744	$	78,744	$	16,000		20	%
Occupancy and equipment	14,936		13,206		1,730			13	%
Advertising and promotions	4,700		4,142		558			13	%
Data processing	8,208		6,533		1,675			26	%
Other real estate owned	283		715		(432		)	(60	)%
Regulatory assessments and insurance	2,535		2,148		387			18	%
Core deposit intangible amortization	2,804		1,240		1,564			126	%
Other expenses	27,212		21,925		5,287			24	%
Total non-interest expense	$	155,422	$	128,653	$	26,769		21	%

Total non-interest expense of $155.4 million for the first half of 2018 increased $26.8 million, or 21 percent, over prior year first half. Compensation and employee benefits for first six months of 2018 increased $16.0 million, or 20 percent, from the same period last year due to the increased number of employees from acquisitions and organic growth combined with annual salary increases. Occupancy and equipment expense for the first half of 2018 increased $1.7 million, or 13 percent from the prior year as a result of increased costs from acquisitions. Data processing expense for the current year increased $1.7 million, or 26 percent, from the prior year as a result of increased costs from the acquisitions. Current year other expenses of $27.2 million increased $5.3 million, or 24 percent, from the prior year and was from an increase in acquisition-related expenses. Acquisition-related expenses were $4.8 million during the first half of 2018 compared to $949 thousand in the prior year first half.

Efficiency Ratio

The efficiency ratio of 56.54 percent for the first six months of 2018 increased 237 basis points from the prior year first six months efficiency ratio of 54.17. The increase included 280 basis points related to the decrease in the federal income tax rate and the increase in acquisition-related expenses.

Provision for Loan Losses

The provision for loan losses was $5.5 million for the first half of 2018, an increase of $902 thousand from the same period in the prior year. Net charge-offs during the first half of 2018 were $3.5 million compared to $4.3 million during the same period in 2017.

49

ADDITIONAL MANAGEMENT’S DISCUSSION AND ANALYSIS

Investment Activity

The Company’s investment securities primarily consist of debt securities classified as available-for-sale or held-to-maturity. Non-marketable equity securities consist of capital stock issued by the FHLB of Des Moines and are carried at cost less impairment.

Debt Securities

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

	June 30, 2018				December 31, 2017				June 30, 2017
(Dollars in thousands)	Carrying Amount		Percent		Carrying Amount		Percent		Carrying Amount		Percent
Available-for-sale
U.S. government and federal agency	$	28,093	1	%	$	31,127	1	%	$	35,611	1	%
U.S. government sponsored enterprises	119,360		4	%	19,091		1	%	19,274		1	%
State and local governments	653,918		23	%	629,501		26	%	667,903		24	%
Corporate bonds	318,422		12	%	216,762		9	%	422,369		15	%
Residential mortgage-backed securities	886,348		32	%	779,283		32	%	896,364		32	%
Commercial mortgage-backed securities	171,211		6	%	102,479		4	%	100,951		3	%
Total available-for-sale	2,177,352		78	%	1,778,243		73	%	2,142,472		76	%
Held-to-maturity
State and local governments	620,409		22	%	648,313		27	%	659,347		24	%
Total held-to-maturity	620,409		22	%	648,313		27	%	659,347		24	%
Total debt securities	$	2,797,761	100	%	$	2,426,556	100	%	$	2,801,819	100	%

The Company’s debt securities are primarily comprised of state and local government securities and mortgage-backed securities. State and local government securities are largely exempt from federal income tax and the Company’s federal statutory rate is used in calculating the tax-equivalent yields on the tax-exempt securities. As a result of the Tax Act, the federal statutory rate decreased from 35 percent in 2017 to 21 percent beginning in 2018. Mortgage-backed securities are primarily short, weighted-average life U.S. agency guaranteed residential mortgage pass-through securities.  To a lesser extent, mortgage-backed securities also consist of short, weighted-average life U.S. agency guaranteed residential collateralized mortgage obligations and U.S. agency guaranteed commercial mortgage-backed securities. Combined, the mortgage-backed securities provide the Company with ongoing liquidity as scheduled and pre-paid principal is received on the securities.

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.

50

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.

	June 30, 2018			December 31, 2017
(Dollars in thousands)	Amortized Cost		Fair Value	Amortized Cost	Fair Value
S&P: AAA / Moody’s: Aaa	$	320,079	317,165	310,040	311,759
S&P: AA+, AA, AA- / Moody’s: Aa1, Aa2, Aa3	738,828		739,018	767,306	783,795
S&P: A+, A, A- / Moody’s: A1, A2, A3	172,819		177,764	167,230	175,539
S&P: BBB+, BBB, BBB- / Moody’s: Baa1, Baa2, Baa3	9,005		9,242	2,271	2,372
Not rated by either entity	29,945		28,388	14,985	15,262
Below investment grade	846		850	847	860
Total	$	1,271,522	1,272,427	1,262,679	1,289,587

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.

	June 30, 2018			December 31, 2017
(Dollars in thousands)	Amortized Cost		Fair Value	Amortized Cost	Fair Value
General obligation - unlimited	$	710,128	711,785	717,610	735,218
General obligation - limited	187,171		191,390	195,278	203,643
Revenue	347,801		342,901	322,394	323,183
Certificate of participation	18,510		18,851	19,366	19,922
Other	7,912		7,500	8,031	7,621
Total	$	1,271,522	1,272,427	1,262,679	1,289,587

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

	June 30, 2018			December 31, 2017
(Dollars in thousands)	Amortized Cost		Fair Value	Amortized Cost	Fair Value
Washington	$	191,416	192,229	184,491	189,932
Texas	163,159		163,471	170,786	175,217
Michigan	145,901		148,969	157,240	163,332
Montana	110,829		112,859	92,733	97,234
California	68,078		66,607	69,944	69,554
All other states	592,139		588,292	587,485	594,318
Total	$	1,271,522	1,272,427	1,262,679	1,289,587

51

The following table presents the carrying amount and weighted-average yield of available-for-sale and held-to-maturity debt securities by contractual maturity at June 30, 2018. 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 debt securities exclude the federal income tax benefit.

	One Year or Less				After One through Five Years				After Five through Ten Years				After Ten Years				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	$	—	—	%	$	1,776	2.31	%	$	13,339	1.32	%	$	12,978	2.53	%	$	—	—	%	$	28,093	1.95	%
U.S. government sponsored enterprises	—		—	%	111,816		2.54	%	7,544		6.06	%	—		—	%	—		—	%	119,360		2.57	%
State and local governments	23,755		1.86	%	43,634		2.36	%	255,851		3.63	%	330,678		4.07	%	—		—	%	653,918		3.70	%
Corporate bonds	120,866		2.28	%	197,556		2.99	%	—		—	%	—		—	%	—		—	%	318,422		2.72	%
Residential mortgage-backed securities	—		—	%	—		—	%	—		—	%	—		—	%	886,348		2.30	%	886,348		2.30	%
Commercial mortgage-backed securities	—		—	%	—		—	%	—		—	%	—		—	%	171,211		2.50	%	171,211		2.50	%
Total available- for-sale	144,621		2.21	%	354,782		2.77	%	276,734		3.50	%	343,656		4.01	%	1,057,559		2.34	%	2,177,352		2.80	%
Held-to-maturity
State and local governments	—		—	%	3,189		2.36	%	107,480		3.15	%	509,740		4.11	%	—		—	%	620,409		3.94	%
Total held-to-maturity	—		—	%	3,189		2.36	%	107,480		3.15	%	509,740		4.11	%	—		—	%	620,409		3.94	%
Total debt securities	$	144,621	2.21	%	$	357,971	2.76	%	$	384,214	3.40	%	$	853,396	4.07	%	$	1,057,559	2.34	%	$	2,797,761	3.05	%

For additional information on debt securities, see Note 2 to the Consolidated Financial Statements in “Part I. Item 1. Financial Statements.”

Other-Than-Temporary Impairment on Securities Analysis

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 2018, S&P issued a credit opinion affirming its AA+ rating of U.S. government long-term debt, and the outlook remains stable. In April 2018, Moody's issued a credit opinion affirming its Aaa rating of U.S. government long-term debt and the outlook remains stable. In April 2018, Fitch issued a credit opinion affirming 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.

52

The following table separates debt securities with an unrealized loss position at June 30, 2018 into two categories: securities purchased prior to 2018 and those purchased during 2018. Of those securities purchased prior to 2018, the fair market value and unrealized gain or loss at December 31, 2017 is also presented.

	June 30, 2018							December 31, 2017
(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 2018
U.S. government and federal agency	$	22,023	$	(191	)	(1	)%	$	25,188	$	(101	)	—	%
U.S. government sponsored enterprises	18,899		(331		)	(2	)%	19,091		(104		)	(1	)%
State and local governments	524,303		(20,769		)	(4	)%	539,912		(7,157		)	(1	)%
Corporate bonds	149,596		(1,118		)	(1	)%	151,523		(411		)	—	%
Residential mortgage-backed securities	631,841		(21,640		)	(3	)%	727,860		(7,452		)	(1	)%
Commercial mortgage-backed securities	88,131		(2,728		)	(3	)%	102,480		(1,845		)	(2	)%
Total	$	1,434,793	$	(46,777	)	(3	)%	$	1,566,054	$	(17,070	)	(1	)%
Temporarily impaired securities purchased during 2018
U.S. government sponsored enterprises	$	100,461	$	(636	)	(1	)%
State and local governments	39,449		(2,143		)	(5	)%
Corporate bonds	102,354		(470		)	—	%
Residential mortgage-backed securities	166,498		(1,754		)	(1	)%
Commercial mortgage-backed securities	83,080		(400		)	—	%
Total	$	491,842	$	(5,403	)	(1	)%
Temporarily impaired securities
U.S. government and federal agency	$	22,023	$	(191	)	(1	)%
U.S. government sponsored enterprises	119,360		(967		)	(1	)%
State and local governments	563,752		(22,912		)	(4	)%
Corporate bonds	251,950		(1,588		)	(1	)%
Residential mortgage-backed securities	798,339		(23,394		)	(3	)%
Commercial mortgage-backed securities	171,211		(3,128		)	(2	)%
Total	$	1,926,635	$	(52,180	)	(3	)%

53

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 June 30, 2018:

(Dollars in thousands)	Number of Debt Securities	Unrealized Loss
Greater than 10.0%	19	$	(5,568	)
5.1% to 10.0%	123	(13,347		)
0.1% to 5.0%	972	(33,265		)
Total	1,114	$	(52,180	)

With respect to the valuation history of the impaired debt securities, the Company identified 296 securities which have been continuously impaired for the twelve months ending June 30, 2018. 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.

The following table provides details of the 296 debt securities which have been continuously impaired for the twelve months ended June 30, 2018, 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	13	$	(140	)	$	(28	)
U.S. government sponsored enterprises	1	(94		)	(94		)
State and local governments	182	(14,977		)	(1,467		)
Corporate bonds	8	(348		)	(82		)
Residential mortgage-backed securities	76	(10,101		)	(924		)
Commercial mortgage-backed securities	16	(1,862		)	(378		)
Total	296	$	(27,522	)

Based on the Company's analysis of its impaired debt securities as of June 30, 2018, 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 June 30, 2018 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 June 30, 2018 have been determined by the Company to be investment grade.

Non-marketable equity securities. Non-marketable equity securities 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 June 30, 2018, the Company determined that none of such securities had other-than-temporary impairment.

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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 and public entities; 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 “Part I. Item 2. 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 “Part I. Item 2. 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:

	June 30, 2018					December 31, 2017					June 30, 2017
(Dollars in thousands)	Amount			Percent		Amount			Percent		Amount			Percent
Residential real estate loans	$	835,382		11	%	$	720,728		11	%	$	712,726		11	%
Commercial loans
Real estate	4,384,781			56	%	3,577,139			55	%	3,393,753			55	%
Other commercial	1,940,435			25	%	1,579,353			25	%	1,549,067			25	%
Total	6,325,216			81	%	5,156,492			80	%	4,942,820			80	%
Consumer and other loans
Home equity	511,043			6	%	457,918			7	%	445,245			7	%
Other consumer	277,031			4	%	242,686			4	%	244,971			4	%
Total	788,074			10	%	700,604			11	%	690,216			11	%
Loans receivable	7,948,672			102	%	6,577,824			102	%	6,345,762			102	%
ALLL	(131,564		)	(2	)%	(129,568		)	(2	)%	(129,877		)	(2	)%
Loans receivable, net	$	7,817,108		100	%	$	6,448,256		100	%	$	6,215,885		100	%

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Non-performing Assets

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

	At or for the Six Months ended			At or for the Three Months ended		At or for the Year ended		At or for the Six Months ended
(Dollars in thousands)	June 30, 2018			March 31, 2018		December 31, 2017		June 30, 2017
Other real estate owned	$	13,616		14,132		14,269		18,500
Accruing loans 90 days or more past due
Residential real estate	1,050			430		2,366		398
Commercial	11,200			4,701		3,582		1,493
Consumer and other	501			271		129		1,307
Total	12,751			5,402		6,077		3,198
Non-accrual loans
Residential real estate	6,851			7,188		4,924		5,698
Commercial	48,138			43,853		35,629		37,511
Consumer and other	3,181			3,408		4,280		3,974
Total	58,170			54,449		44,833		47,183
Total non-performing assets	$	84,537		73,983		65,179		68,881
Non-performing assets as a percentage of subsidiary assets	0.71		%	0.64	%	0.68	%	0.70	%
ALLL as a percentage of non-performing loans	186		%	213	%	255	%	258	%
Accruing loans 30-89 days past due	$	39,650		44,963		37,687		31,124
Accruing troubled debt restructurings	$	34,991		41,649		38,491		31,742
Non-accrual troubled debt restructurings	$	18,380		13,289		23,709		25,418
U.S. government guarantees included in non-performing assets	$	7,265		4,548		2,513		1,158
Interest income 1	$	1,409		646		2,162		1,119

______________________________

¹  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 June 30, 2018 were $84.5 million, an increase of $10.6 million, or 14 percent, from the prior quarter and an increase of $15.7 million, or 23 percent, from the prior year second quarter. Non-performing assets as a percentage of subsidiary assets at June 30, 2018 was 0.71 percent, an increase of 7 basis points from the prior quarter, and an increase of 1 basis point from the prior year second quarter. Early stage delinquencies (accruing loans 30-89 days past due) of $39.7 million at June 30, 2018 decreased $5.3 million from the prior quarter and early stage delinquencies as a percentage of loans at June 30, 2018 was 0.50 percent which was a decrease of 9 basis points from the prior quarter and a 1 basis point increase from prior year second quarter.

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. With very limited exceptions, the Company does not disburse additional funds on non-performing loans. Instead, the Company proceeds to collection and foreclosure actions in order to reduce the Company’s exposure to loss on such loans.

56

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

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 $140 million and $120 million as of June 30, 2018 and December 31, 2017, respectively. The ALLL includes specific valuation allowances of $2.3 million and $5.2 million of impaired loans as of June 30, 2018 and December 31, 2017, respectively.

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. 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. The Company’s TDR loans of $53.4 million and $62.2 million as of June 30, 2018 and December 31, 2017, respectively, are considered impaired loans.

Other Real Estate Owned

The book value of loans prior to the acquisition of collateral and transfer of the loans into other real estate owned (“OREO”) during 2018 was $1.3 million. The fair value of the loan collateral acquired in foreclosure during 2018 was $1.1 million. The following table sets forth the changes in OREO for the periods indicated:

	At or for the Six Months ended			At or for the Three Months ended		At or for the Year ended		At or for the Six Months ended
(Dollars in thousands)	June 30, 2018			March 31, 2018		December 31, 2017		June 30, 2017
Balance at beginning of period	$	14,269		14,269		20,954		20,954
Acquisitions	187			187		96		96
Additions	1,144			378		4,466		3,521
Write-downs	(56		)	(13	)	(604	)	(275	)
Sales	(1,928		)	(689	)	(10,643	)	(5,796	)
Balance at end of period	$	13,616		14,132		14,269		18,500

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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.

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 fourteen 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.

58

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:

	June 30, 2018						December 31, 2017						June 30, 2017
(Dollars in thousands)	ALLL		Percent of ALLL in Category		Percent of Loans in Category		ALLL		Percent of  ALLL in Category		Percent of Loans in Category		ALLL		Percent of  ALLL in Category		Percent of Loans in Category
Residential real estate	$	10,903	8	%	11	%	$	10,798	8	%	11	%	$	11,522	9	%	11	%
Commercial real estate	71,245		54	%	55	%	68,515		53	%	54	%	68,503		53	%	54	%
Other commercial	38,664		29	%	24	%	39,303		30	%	24	%	36,984		28	%	24	%
Home equity	6,092		5	%	6	%	6,204		5	%	7	%	7,662		6	%	7	%
Other consumer	4,660		4	%	4	%	4,748		4	%	4	%	5,206		4	%	4	%
Total	$	131,564	100	%	100	%	$	129,568	100	%	100	%	$	129,877	100	%	100	%

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

	At or for the Six Months ended			At or for the Three Months ended		At or for the Year ended		At or for the Six Months ended
(Dollars in thousands)	June 30, 2018			March 31, 2018		December 31, 2017		June 30, 2017
Balance at beginning of period	$	129,568		129,568		129,572		129,572
Provision for loan losses	5,513			795		10,824		4,611
Charge-offs
Residential real estate	(47		)	(3	)	(199	)	(43	)
Commercial loans	(3,651		)	(2,821	)	(9,044	)	(3,515	)
Consumer and other loans	(3,913		)	(2,183	)	(10,088	)	(5,260	)
Total charge-offs	(7,611		)	(5,007	)	(19,331	)	(8,818	)
Recoveries
Residential real estate	71			16		82		65
Commercial loans	2,051			1,211		3,569		1,362
Consumer and other loans	1,972			1,025		4,852		3,085
Total recoveries	4,094			2,252		8,503		4,512
Net charge-offs	(3,517		)	(2,755	)	(10,828	)	(4,306	)
Balance at end of period	$	131,564		127,608		129,568		129,877
ALLL as a percentage of total loans	1.66		%	1.66	%	1.97	%	2.05	%
Net charge-offs as a percentage of total loans	0.04		%	0.04	%	0.17	%	0.07	%

59

The ALLL as a percent of total loans outstanding at June 30, 2018 was 1.66 percent, which was stable compared to the prior quarter and a decrease of 31 basis points from 1.97 percent at December 31, 2017. This decrease was primarily driven by the addition of loans from new acquisitions, as they are added to the portfolio on a fair value basis with no allowance.

The Company’s ALLL of $132 million is considered adequate to absorb losses from any class of its loan portfolio. For the periods ended June 30, 2018 and 2017, 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 2018, the provision for loan losses exceeded loan charge-offs, net of recoveries, by $2.0 million. During the same period in 2017, the provision for loan losses exceeded loan charge-offs, net of recoveries, by $305 thousand.

The Company provides commercial services to individuals, small to medium-sized businesses, community organizations and public entities from 167 locations, including 152 branches, across Montana, Idaho, Utah, Washington, Wyoming, Colorado and Arizona. The 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.

Overall, there continues to be improvements in the economic environment and housing markets throughout the Company’s footprint. Home prices continue to increase in all of the states within the Company’s footprint. Five of the Company’s states are ranked in the top 10 nationally for house price appreciation. Home ownership in the United States has increased slightly to 64.2 percent as of the first quarter of 2018 after bottoming out at 62.9 percent in the second quarter of 2016. The long-term average for the United States homeownership rate is at 65.3 percent. Quarterly personal income growth remains in positive territory for each of the Company’s states, while all of the states exceed the national average. The Federal Reserve Bank of Philadelphia’s composite state coincident indices projects steady growth throughout the Company’s footprint. The United States economy grew at or above 2.0 percent for a fourth straight quarter. All of the states in the Company’s footprint have unemployment rates below 5 percent, which reflects the Federal Reserve’s definition of full employment. There has been a slight uptick in crude oil, while base metal and natural gas prices remain steady. Certain agriculture commodities within the Company’s footprint remain volatile. The tourism industry and related lodging activity continues to be a source of strength for locations where the Company’s markets include national parks and similar recreational areas. However, Canadian tourism in Washington, Idaho and Montana continues to be negatively impacted by the weak Canadian dollar. It remains to be seen how much the Tax Act will impact the Company’s economic environment. In general, the Company sees positive signs in the various economic indices; however, given the significant recession experienced during the late 2000s and the current lack of housing supply within the Company’s footprint, the Company is cautiously optimistic about the housing market. The Company will continue to actively monitor the economy’s impact on its lending portfolio.

60

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 13 percent of the Company’s total loan portfolio and accounted for 18 percent and 24 percent of the Company’s non-accrual loans at June 30, 2018 and December 31, 2017, 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)	June 30, 2018		March 31, 2018	December 31, 2017	June 30, 2017
Specific valuation allowance	$	2,252	4,468	5,223	3,081
General valuation allowance	129,312		123,140	124,345	126,796
Total ALLL	$	131,564	127,608	129,568	129,877

During 2018, the ALLL increased by $2.0 million, the net result of a $3.0 million decrease in the specific valuation allowance and a $5.0 million increase in the general valuation allowance. The specific valuation decreased as the result of a $1.2 million decrease in loans individually evaluated 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 $362 million in loans collectively evaluated for impairment, excluding the current year acquisitions. At acquisition date, the assets and liabilities of the 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 “Part I. Item 1. Financial Statements.”

61

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 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:

	Loans Receivable, by Loan Type												% Change from
(Dollars in thousands)	Jun 30, 2018			Mar 31, 2018			Dec 31, 2017			Jun 30, 2017			Mar 31, 2018		Dec 31, 2017		Jun 30, 2017
Custom and owner occupied construction	$	138,171		$	140,440		$	109,555		$	103,816		(2	)%	26	%	33	%
Pre-sold and spec construction	96,008			100,376			72,160			76,553			(4	)%	33	%	25	%
Total residential construction	234,179			240,816			181,715			180,369			(3	)%	29	%	30	%
Land development	108,641			76,528			82,398			80,044			42	%	32	%	36	%
Consumer land or lots	110,846			119,469			102,289			107,124			(7	)%	8	%	3	%
Unimproved land	72,150			68,862			65,753			67,935			5	%	10	%	6	%
Developed lots for operative builders	12,708			13,093			14,592			12,337			(3	)%	(13	)%	3	%
Commercial lots	27,661			43,232			23,770			25,675			(36	)%	16	%	8	%
Other construction	478,037			420,632			391,835			307,547			14	%	22	%	55	%
Total land, lot, and other construction	810,043			741,816			680,637			600,662			9	%	19	%	35	%
Owner occupied	1,302,737			1,292,206			1,132,833			1,091,119			1	%	15	%	19	%
Non-owner occupied	1,495,532			1,449,166			1,186,066			1,148,831			3	%	26	%	30	%
Total commercial real estate	2,798,269			2,741,372			2,318,899			2,239,950			2	%	21	%	25	%
Commercial and industrial	909,688			865,574			751,221			769,105			5	%	21	%	18	%
Agriculture	661,218			620,342			450,616			457,286			7	%	47	%	45	%
1st lien	1,072,917			1,014,361			877,335			849,601			6	%	22	%	26	%
Junior lien	64,821			66,288			51,155			53,316			(2	)%	27	%	22	%
Total 1-4 family	1,137,738			1,080,649			928,490			902,917			5	%	23	%	26	%
Multifamily residential	218,061			219,310			189,342			172,523			(1	)%	15	%	26	%
Home equity lines of credit	500,036			481,204			440,105			419,940			4	%	14	%	19	%
Other consumer	164,288			162,171			148,247			155,098			1	%	11	%	6	%
Total consumer	664,324			643,375			588,352			575,038			3	%	13	%	16	%
States and political subdivisions	419,025			421,252			383,252			341,159			(1	)%	9	%	23	%
Other	149,915			132,582			144,133			144,479			13	%	4	%	4	%
Total loans receivable, including loans held for sale	8,002,460			7,707,088			6,616,657			6,383,488			4	%	21	%	25	%
Less loans held for sale 1	(53,788		)	(37,058		)	(38,833		)	(37,726		)	45	%	39	%	43	%
Total loans receivable	$	7,948,672		$	7,670,030		$	6,577,824		$	6,345,762		4	%	21	%	25	%

______________________________

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

62

The following table summarizes the Company’s non-performing assets by regulatory classification:

	Non-performing Assets,  by Loan Type					Non- Accrual Loans	Accruing Loans 90  Days or  More Past Due	OREO
(Dollars in thousands)	Jun 30, 2018		Mar 31, 2018	Dec 31, 2017	Jun 30, 2017	Jun 30, 2018	Jun 30, 2018	Jun 30, 2018
Custom and owner occupied construction	$	48	48	48	177	—	—	48
Pre-sold and spec construction	492		492	38	272	492	—	—
Total residential construction	540		540	86	449	492	—	48
Land development	7,564		7,802	7,888	8,428	901	—	6,663
Consumer land or lots	1,593		1,622	1,861	1,868	510	—	1,083
Unimproved land	9,962		10,294	10,866	11,933	8,453	28	1,481
Developed lots for operative builders	126		83	116	116	43	—	83
Commercial lots	1,059		1,312	1,312	1,559	13	—	1,046
Other construction	155		319	151	151	17	—	138
Total land, lot and other construction	20,459		21,432	22,194	24,055	9,937	28	10,494
Owner occupied	12,891		12,594	13,848	17,757	11,251	113	1,527
Non-owner occupied	15,337		5,346	4,584	2,791	7,734	7,108	495
Total commercial real estate	28,228		17,940	18,432	20,548	18,985	7,221	2,022
Commercial and industrial	7,692		6,313	5,294	4,753	6,577	1,070	45
Agriculture	10,497		10,476	3,931	2,877	7,946	2,551	—
1st lien	9,725		8,717	9,261	9,057	7,964	1,426	335
Junior lien	3,257		4,271	567	727	3,220	37	—
Total 1-4 family	12,982		12,988	9,828	9,784	11,184	1,463	335
Multifamily residential	634		652	—	—	634	—	—
Home equity lines of credit	3,112		3,312	3,292	5,864	2,205	274	633
Other consumer	393		330	322	551	210	144	39
Total consumer	3,505		3,642	3,614	6,415	2,415	418	672
States and political subdivisions	—		—	1,800	—	—	—	—
Total	$	84,537	73,983	65,179	68,881	58,170	12,751	13,616

63

The following table summarizes the Company’s accruing loans 30-89 days past due by regulatory classification:

	Accruing 30-89 Days Delinquent Loans, by Loan Type								% Change from
(Dollars in thousands)	Jun 30, 2018		Mar 31, 2018		Dec 31, 2017		Jun 30, 2017		Mar 31, 2018		Dec 31, 2017		Jun 30, 2017
Custom and owner occupied construction	$	1,525	$	611	$	300	$	493	150	%	408	%	209	%
Pre-sold and spec construction	721		267		102		155		170	%	607	%	365	%
Total residential construction	2,246		878		402		648		156	%	459	%	247	%
Land development	728		585		—		—		24	%	n/m		n/m
Consumer land or lots	471		485		353		808		(3	)%	33	%	(42	)%
Unimproved land	1,450		889		662		1,115		63	%	119	%	30	%
Developed lots for operative builders	—		464		7		—		(100	)%	(100	)%	n/m
Commercial lots	—		194		108		—		(100	)%	(100	)%	n/m
Other construction	—		76		—		—		(100	)%	n/m		n/m
Total land, lot and other construction	2,649		2,693		1,130		1,923		(2	)%	134	%	38	%
Owner occupied	3,571		13,904		4,726		5,038		(74	)%	(24	)%	(29	)%
Non-owner occupied	8,414		3,842		2,399		6,533		119	%	251	%	29	%
Total commercial real estate	11,985		17,746		7,125		11,571		(32	)%	68	%	4	%
Commercial and industrial	5,745		5,746		6,472		5,825		—	%	(11	)%	(1	)%
Agriculture	5,288		3,845		3,205		1,067		38	%	65	%	396	%
1st lien	5,132		9,597		10,865		2,859		(47	)%	(53	)%	80	%
Junior lien	989		240		4,348		815		312	%	(77	)%	21	%
Total 1-4 family	6,121		9,837		15,213		3,674		(38	)%	(60	)%	67	%
Multifamily residential	—		—		—		2,011		n/m		n/m		(100	)%
Home equity lines of credit	3,940		2,316		1,962		2,819		70	%	101	%	40	%
Other consumer	1,665		1,849		2,109		1,572		(10	)%	(21	)%	6	%
Total consumer	5,605		4,165		4,071		4,391		35	%	38	%	28	%
Other	11		53		69		14		(79	)%	(84	)%	(21	)%
Total	$	39,650	$	44,963	$	37,687	$	31,124	(12	)%	5	%	27	%

______________________________

n/m - not measurable

64

The following table summarizes the Company’s charge-offs and recoveries by regulatory classification:

	Net Charge-Offs (Recoveries), Year-to-Date Period Ending, By Loan Type									Charge-Offs	Recoveries
(Dollars in thousands)	Jun 30, 2018			Mar 31, 2018		Dec 31, 2017		Jun 30, 2017		Jun 30, 2018	Jun 30, 2018
Pre-sold and spec construction	$	(344	)	(339	)	(23	)	(15	)	17	361
Total residential construction	(344		)	(339	)	(23	)	(15	)	17	361
Land development	(107		)	(5	)	(143	)	(46	)	—	107
Consumer land or lots	(92		)	(3	)	222		(107	)	206	298
Unimproved land	(144		)	(73	)	(304	)	(110	)	—	144
Developed lots for operative builders	33			—		(107	)	(10	)	33	—
Commercial lots	4			(2	)	(6	)	(3	)	7	3
Other construction	—			—		389		390		—	—
Total land, lot and other construction	(306		)	(83	)	51		114		246	552
Owner occupied	1,000			962		3,908		853		1,084	84
Non-owner occupied	(4		)	(47	)	368		(2	)	59	63
Total commercial real estate	996			915		4,276		851		1,143	147
Commercial and industrial	1,471			1,430		883		494		1,922	451
Agriculture	44			(2	)	9		14		50	6
1st lien	(193		)	(65	)	(23	)	(32	)	47	240
Junior lien	(34		)	(29	)	719		746		47	81
Total 1-4 family	(227		)	(94	)	696		714		94	321
Multifamily residential	(6		)	(6	)	(230	)	(229	)	—	6
Home equity lines of credit	(38		)	(32	)	272		271		19	57
Other consumer	111			73		505		(8	)	258	147
Total consumer	73			41		777		263		277	204
Other	1,816			893		4,389		2,100		3,862	2,046
Total	$	3,517		2,755		10,828		4,306		7,611	4,094

65

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 debt securities, 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 deposit accounts and interest bearing deposit accounts such as NOW, DDA, savings, money market deposits, 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. Wholesale deposits are obtained through various programs and include brokered deposits classified as NOW, DDA, money market deposit and certificate accounts. During 2017, the Company utilized a third party vendor to transfer deposits off-balance sheet. All of such deposits were brought back onto the Company’s balance sheet during 2018. The Company’s deposits are summarized below:

	June 30, 2018				December 31, 2017				June 30, 2017
(Dollars in thousands)	Amount		Percent		Amount		Percent		Amount		Percent
Non-interest bearing deposits	$	2,914,885	31	%	$	2,311,902	31	%	$	2,234,058	29	%
NOW and DDA accounts	2,354,214		25	%	1,695,246		22	%	1,717,351		22	%
Savings accounts	1,330,637		14	%	1,082,604		14	%	1,059,717		13	%
Money market deposit accounts	1,723,681		18	%	1,512,693		20	%	1,608,994		21	%
Certificate accounts	927,608		10	%	817,259		11	%	886,504		11	%
Wholesale deposits	172,550		2	%	160,043		2	%	291,339		4	%
Total interest bearing deposits	6,508,690		69	%	5,267,845		69	%	5,563,905		71	%
Total deposits	$	9,423,575	100	%	$	7,579,747	100	%	$	7,797,963	100	%

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 the 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 periodically 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 debt 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.

66

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.

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

	At or for the Six Months ended			At or for the Year ended
(Dollars in thousands)	June 30, 2018			December 31, 2017
Repurchase agreements
Amount outstanding at end of period	$	361,515		362,573
Weighted interest rate on outstanding amount	0.52		%	0.53	%
Maximum outstanding at any month-end	$	395,794		497,187
Average balance	$	376,385		413,873
Weighted-average interest rate	0.52		%	0.45	%

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. Subordinated debentures were issued in conjunction with the trust preferred securities and the terms of the subordinated debentures and trust preferred securities are the same. For regulatory capital purposes, the trust preferred securities are included in Tier 1 capital up to a certain limit. The Company also assumed subordinated debt that qualifies as Tier 2 capital from the FSB acquisition. The subordinated debentures outstanding as of June 30, 2018 were $134 million, including fair value adjustments from acquisitions.

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.

Off-balance sheet arrangements also include any obligation related to a variable interest held in an unconsolidated entity. The Company does not anticipate any material losses as a result of these transactions. For additional information regarding the Company’s interests in unconsolidated variable interest entities (“VIE”), see Note 5 to the Consolidated Financial Statements in “Part I. Item 1. Financial Statements.”

67

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., debt 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)	June 30, 2018			December 31, 2017
FHLB advances
Borrowing capacity	$	1,988,032		1,807,787
Amount utilized	(400,419		)	(360,185	)
Amount available	$	1,587,613		1,447,602
FRB discount window
Borrowing capacity	$	898,700		1,054,103
Amount utilized	—			—
Amount available	$	898,700		1,054,103
Unsecured lines of credit available	$	230,000		230,000
Unencumbered debt securities
U.S. government and federal agency	$	28,093		29,097
U.S. government sponsored enterprises	110,469			3,358
State and local governments	606,911			769,786
Corporate bonds	310,948			5,982
Residential mortgage-backed securities	271,750			115,527
Commercial mortgage-backed securities	89,118			54,998
Total unencumbered securities	$	1,417,289		978,748

68

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 84,516,650 have been issued as of June 30, 2018. The Company also has the capacity to issue 1,000,000 shares of preferred stock of which none have been issued as of June 30, 2018. 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. The federal banking agencies implemented final rules (“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 certain regulatory amendments based on the recommendation of the Basel Committee on Banking Supervision and certain requirements of the Dodd-Frank Act and substantially amended the regulatory risk-based capital rules applicable to the Company. The Final Rules require the Company to hold a conservation buffer designed to absorb losses during periods of economic stress. The capital conservation buffer for 2018 is 1.875%. As of June 30, 2018, management believes the Company and Bank meet all capital adequacy requirements to which they are subject and there are no conditions or events subsequent to this date that management believes have changed the Company’s or Bank’s risk-based capital category.

The following table illustrates the Bank’s regulatory ratios and the Federal Reserve’s current capital adequacy guidelines as of June 30, 2018. 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 actual regulatory ratios	14.55	%	13.29	%	13.29	%	11.07	%
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

69

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, Utah, Colorado and Arizona 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, 4.63 percent in Colorado and 4.9 percent in Arizona. Washington and Wyoming do not impose a corporate income tax.

Income tax expense for the six months ended June 30, 2018 and 2017 was $17.9 million and $21.7 million, respectively. The Company’s effective tax rate for the six months ended June 30, 2018 and 2017 was 17.7 percent and 25.0 percent, respectively. The current year effective tax rate was significantly lower than the prior year and was attributable to the decrease in the federal income tax rate driven by the Tax Act. The prior year federal statutory tax rate was 35 percent and was decreased to 21 percent in the current year. Furthermore, the current year and prior year’s effective tax rates are lower due to income from tax-exempt debt securities, municipal loans and leases and benefits from federal income tax credits. Income from tax-exempt debt securities, loans and leases was $28.0 million and $28.6 million for the six months ended June 30, 2018 and 2017, respectively. Benefits from federal income tax credits were $3.7 million and $2.4 million for the six months ended June 30, 2018 and 2017, 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 $20.7 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 debt 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	Debt Securities Tax Credits	Total
2018	$	3,216	4,901	908	9,025
2019	3,315		5,500	850	9,665
2020	3,637		5,304	791	9,732
2021	3,705		4,487	737	8,929
2022	2,937		4,459	673	8,069
Thereafter	2,752		21,238	2,149	26,139
	$	19,562	45,889	6,108	71,559

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).

70

	Three Months ended							Six Months ended
	June 30, 2018							June 30, 2018
(Dollars in thousands)	Average Balance			Interest and Dividends		Average Yield/ Rate		Average Balance			Interest and Dividends		Average Yield/ Rate
Assets
Residential real estate loans	$	874,839		$	10,149	4.64	%	$	829,579		$	18,934	4.56	%
Commercial loans 1	6,158,095			76,834		5.00	%	5,856,533			143,308		4.93	%
Consumer and other loans	761,751			9,372		4.93	%	740,569			17,996		4.90	%
Total loans 2	7,794,685			96,355		4.96	%	7,426,681			180,238		4.89	%
Tax-exempt investment securities 3	1,085,520			12,634		4.66	%	1,089,605			25,429		4.67	%
Taxable investment securities 4	1,931,846			12,630		2.62	%	1,793,849			22,902		2.55	%
Total earning assets	10,812,051			121,619		4.51	%	10,310,135			228,569		4.47	%
Goodwill and intangibles	343,201							281,673
Non-earning assets	473,750							432,533
Total assets	$	11,629,002						$	11,024,341
Liabilities
Non-interest bearing deposits	$	2,800,719		$	—	—	%	$	2,637,342		$	—	—	%
NOW and DDA accounts	2,316,927			1,009		0.17	%	2,165,039			1,827		0.17	%
Savings accounts	1,319,966			231		0.07	%	1,252,760			423		0.07	%
Money market deposit accounts	1,746,960			856		0.20	%	1,689,730			1,576		0.19	%
Certificate accounts	941,099			1,592		0.68	%	908,940			2,911		0.65	%
Total core deposits	9,125,671			3,688		0.16	%	8,653,811			6,737		0.16	%
Wholesale deposits 5	153,127			929		2.43	%	151,362			1,796		2.39	%
FHLB advances	290,391			2,513		3.42	%	257,800			4,602		3.55	%
Repurchase agreements and other borrowed funds	510,636			2,031		1.60	%	516,108			3,800		1.48	%
Total interest bearing liabilities	10,079,825			9,161		0.36	%	9,579,081			16,935		0.36	%
Other liabilities	74,600							50,421
Total liabilities	10,154,425							9,629,502
Stockholders’ Equity
Common stock	845							827
Paid-in capital	1,049,270							978,046
Retained earnings	443,607							432,143
Accumulated other comprehensive loss	(19,145		)					(16,177		)
Total stockholders’ equity	1,474,577							1,394,839
Total liabilities and stockholders’ equity	$	11,629,002						$	11,024,341
Net interest income (tax-equivalent)				$	112,458						$	211,634
Net interest spread (tax-equivalent)						4.15	%						4.11	%
Net interest margin (tax-equivalent)						4.17	%						4.14	%

______________________________

¹  Includes tax effect of $1.0 million and $2.0 million on tax-exempt municipal loan and lease income for the three and six months ended June 30, 2018, respectively.

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 $2.6 million and $5.2 million on tax-exempt debt securities income for the three and six months ended June 30, 2018, respectively.

⁴  Includes tax effect of $305 thousand and $609 thousand on federal income tax credits for the three and six months ended June 30, 2018, respectively.

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

71

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 June 30,
	2018 vs. 2017
	Increase (Decrease) Due to:
(Dollars in thousands)	Volume			Rate		Net
Interest income
Residential real estate loans	$	2,374		292		2,666
Commercial loans (tax-equivalent)	31,248			3,016		34,264
Consumer and other loans	1,512			562		2,074
Investment securities (tax-equivalent)	(3,044		)	(4,531	)	(7,575	)
Total interest income	32,090			(661	)	31,429
Interest expense
NOW and DDA accounts	187			1,111		1,298
Savings accounts	64			59		123
Money market deposit accounts	130			273		403
Certificate accounts	(59		)	335		276
Wholesale deposits	(2,286		)	(222	)	(2,508	)
FHLB advances	(510		)	1,868		1,358
Repurchase agreements and other borrowed funds	(218		)	1,063		845
Total interest expense	(2,692		)	4,487		1,795
Net interest income (tax-equivalent)	$	34,782		(5,148	)	29,634

Net interest income (tax-equivalent) increased $29.6 million for the six months ended June 30, 2018 compared to the same period in 2017. The interest income for the first six months increased over the same period last year primarily from increased growth of the Company’s commercial loan portfolio. The decrease in interest income on the debt securities portfolio was the result of the redeployment of cash flow from debt securities into the loan portfolio and the decrease in the tax benefit related to the tax-exempt debt securities. Total interest expense increased from prior year primarily from an increase in deposit and FHLB interest rates, which was partially offset by the decrease in wholesale deposits.

Effect of inflation and changing prices

Accounting principles generally accepted in the United States of America (“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.

72

Item 3. Quantitative and Qualitative Disclosure about Market Risk

The Company’s assessment of market risk as of June 30, 2018 indicates there are no material changes in the quantitative and qualitative disclosures from those in the 2017 Annual Report.

Item 4. Controls and Procedures

Evaluation of Disclosure Controls and Procedures

The Company’s Chief Executive Officer and Chief Financial Officer have reviewed and evaluated the effectiveness of the Company’s disclosure controls and procedures (as required by Exchange Act Rules 240.13a-15(b) and 15d-14(c)) as of June 30, 2018. Based on that evaluation, the Chief Executive Officer and Chief Financial Officer have concluded that the Company’s current disclosure controls and procedures are effective and timely, providing them with material information relating to the Company required to be disclosed in the reports the Company files or submits under the Exchange Act.

Changes in Internal Controls

There have not been any changes in the Company’s internal control over financial reporting (as such term is defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act) during the second quarter of 2018, to which this report relates that have materially affected, or are reasonably likely to materially affect the Company’s internal control over financial reporting.

PART II – OTHER INFORMATION

Item 1. 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 1A. Risk Factors

The Company believes there have been no material changes from risk factors previously disclosed in the 2017 Annual Report. The risks and uncertainties described in the 2017 Annual Report should be carefully reviewed. These are not the only risks and uncertainties that the Company faces. Additional risks and uncertainties that the Company does not currently know about or that the Company currently believes are immaterial, or that the Company has not predicted, may also harm its business operations or adversely affect the Company. If any of these risks or uncertainties actually occurs, the Company’s business, financial condition, operating results or liquidity could be adversely affected.

Item 2. Unregistered Sales of Equity Securities and Use of Proceeds

(a) Not Applicable

(b) Not Applicable

(c) Not Applicable

73

Item 3. Defaults upon Senior Securities

(a) Not Applicable

(b) Not Applicable

Item 4. Mine Safety Disclosures

Not Applicable

Item 5. Other Information

(a) Not Applicable

(b) Not Applicable

Item 6. Exhibits

Exhibit 31.1 - Certification of Chief Executive Officer pursuant to Section 302 of the Sarbanes - Oxley Act of 2002

Exhibit 31.2 - Certification of Chief Financial Officer pursuant to Section 302 of the Sarbanes - Oxley Act of 2002

Exhibit 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

Exhibit 101 - The following financial information from Glacier Bancorp, Inc's Quarterly Report on Form 10-Q for the quarter ended June 30, 2018 is formatted in XBRL: (i) the Unaudited Condensed Consolidated Statements of Financial Condition, (ii) the Unaudited Condensed Consolidated Statements of Operations, (iii) the Unaudited Condensed Consolidated Statements of Stockholders’ Equity and Comprehensive Income, (iv) the Unaudited Condensed Consolidated Statements of Cash Flows, and (v) the Notes to Unaudited Condensed Consolidated Financial Statements.

74

SIGNATURES

Pursuant to the requirements 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.

	GLACIER BANCORP, INC.
July 31, 2018	/s/ Randall M. Chesler
	Randall M. Chesler
	President and CEO
July 31, 2018	/s/ Ron J. Copher
	Ron J. Copher
	Executive Vice President and CFO

75

EX-31.1

Exhibit 31.1

CERTIFICATIONS

I, Randall M. Chesler, certify that:

1. I have reviewed this Quarterly Report on Form 10-Q 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.

July 31, 2018	/s/ Randall M. Chesler
	Randall M. Chesler
	President/CEO

EX-31.2

Exhibit 31.2

CERTIFICATIONS

I, Ron J. Copher, certify that:

1. I have reviewed this Quarterly Report on Form 10-Q 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.

July 31, 2018	/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 Quarterly Report of Glacier Bancorp, Inc. (“Company”) on Form 10-Q for the period ended June 30, 2018, as filed with the Securities and Exchange Commission on the date hereof (“Report”), we, Randall M. Chesler, 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.

July 31, 2018	/s/ Randall M. Chesler
	Randall M. Chesler
	President/CEO
July 31, 2018	/s/ Ron J. Copher
	Ron J. Copher
	Executive Vice President/CFO

XML

Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2018	Jul. 17, 2018
Document and Entity Information [Abstract]
Entity Registrant Name	GLACIER BANCORP INC
Trading Symbol	GBCI
Entity Central Index Key	0000868671
Document Type	10-Q
Document Period End Date	Jun. 30, 2018
Amendment Flag	false
Document Fiscal Year Focus	2018
Document Fiscal Period Focus	Q2
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		84,516,901

XML

Unaudited Condensed Consolidated Statements of Financial Condition - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Assets
Cash on hand and in banks	$ 174,239	$ 139,948
Interest bearing cash deposits	193,893	60,056
Cash and cash equivalents	368,132	200,004
Debt securities, available-for-sale	2,177,352	1,778,243
Debt securities, held-to-maturity	620,409	648,313
Total debt securities	2,797,761	2,426,556
Loans held for sale, at fair value	53,788	38,833
Loans receivable	7,948,672	6,577,824
Allowance for loan and lease losses	(131,564)	(129,568)
Loans receivable, net	7,817,108	6,448,256
Premises and equipment, net	240,373	177,348
Other real estate owned	13,616	14,269
Accrued interest receivable	55,973	44,462
Deferred tax asset	34,211	38,344
Core deposit intangible, net	52,708	14,184
Goodwill	289,535	177,811
Non-marketable equity securities	26,107	29,884
Bank-owned life insurance	81,379	59,351
Other assets	66,953	37,047
Total assets	11,897,644	9,706,349
Liabilities
Non-interest bearing deposits	2,914,885	2,311,902
Interest bearing deposits	6,508,690	5,267,845
Securities sold under agreements to repurchase	361,515	362,573
Federal Home Loan Bank advances	395,037	353,995
Other borrowed funds	9,917	8,224
Subordinated debentures	134,058	126,135
Accrued interest payable	3,952	3,450
Other liabilities	95,598	73,168
Total liabilities	10,423,652	8,507,292
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	845	780
Paid-in capital	1,049,724	797,997
Retained earnings - substantially restricted	443,705	402,259
Accumulated other comprehensive loss	(20,282)	(1,979)
Total stockholders' equity	1,473,992	1,199,057
Total liabilities and stockholders' equity	$ 11,897,644	$ 9,706,349
Number of common stock shares issued and outstanding	84,516,650	78,006,956

XML

Unaudited Condensed Consolidated Statements of Financial Condition (Parenthetical) - $ / shares	Jun. 30, 2018	Dec. 31, 2017
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

Unaudited Condensed Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Interest Income
Investment securities	$ 22,370	$ 21,379	$ 42,512	$ 43,318
Residential real estate loans	10,149	8,350	18,934	16,268
Commercial loans	75,824	56,182	141,339	106,152
Consumer and other loans	9,372	8,121	17,996	15,922
Total interest income	117,715	94,032	220,781	181,660
Interest Expense
Deposits	4,617	4,501	8,533	8,941
Securities sold under agreements to repurchase	486	443	971	825
Federal Home Loan Bank advances	2,513	1,734	4,602	3,244
Other borrowed funds	26	19	42	34
Subordinated debentures	1,519	1,077	2,787	2,096
Total interest expense	9,161	7,774	16,935	15,140
Net Interest Income	108,554	86,258	203,846	166,520
Provision for loan losses	4,718	3,013	5,513	4,611
Net interest income after provision for loan losses	103,836	83,245	198,333	161,909
Non-Interest Income
Service charges and other fees	18,804	17,495	35,675	33,128
Miscellaneous loan fees and charges	2,243	1,092	3,720	2,072
Gain on sale of loans	8,142	7,532	14,239	13,890
Loss on sale of debt securities	(56)	(522)	(389)	(622)
Other income	2,695	2,059	4,669	4,877
Total non-interest income	31,828	27,656	57,914	53,345
Non-Interest Expense
Compensation and employee benefits	49,023	39,498	94,744	78,744
Occupancy and equipment	7,662	6,560	14,936	13,206
Advertising and promotions	2,530	2,169	4,700	4,142
Data processing	4,241	3,409	8,208	6,533
Other real estate owned	211	442	283	715
Regulatory assessments and insurance	1,329	1,087	2,535	2,148
Core deposit intangibles amortization	1,748	639	2,804	1,240
Other expenses	15,051	11,505	27,212	21,925
Total non-interest expense	81,795	65,309	155,422	128,653
Income Before Income Taxes	53,869	45,592	100,825	86,601
Federal and state income tax expense	9,485	11,905	17,882	21,659
Net Income	$ 44,384	$ 33,687	$ 82,943	$ 64,942
Basic earnings per share	$ 0.53	$ 0.43	$ 1.00	$ 0.84
Diluted earnings per share	0.52	0.43	1.00	0.84
Dividends declared per share	$ 0.26	$ 0.21	$ 0.49	$ 0.42
Average outstanding shares - basic	84,514,257	77,546,236	82,671,816	77,061,867
Average outstanding shares - diluted	84,559,268	77,592,325	82,734,407	77,125,677

XML

Unaudited Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Statement of Comprehensive Income [Abstract]
Net income	$ 44,384	$ 33,687	$ 82,943	$ 64,942
Other Comprehensive (Loss) Income, Net of Tax
Unrealized (losses) gains on available-for-sale debt securities	(6,696)	16,894	(32,407)	20,007
Reclassification adjustment for losses included in net income	64	457	346	596
Net unrealized (losses) gains on available-for-sale debt securities	(6,632)	17,351	(32,061)	20,603
Tax effect	1,681	(6,722)	8,125	(7,982)
Net of tax amount	(4,951)	10,629	(23,936)	12,621
Unrealized gains (losses) on derivatives used for cash flow hedges	1,689	(2,108)	6,068	(1,844)
Reclassification adjustment for losses included in net income	577	1,262	1,477	2,594
Net unrealized gains (losses) on derivatives used for cash flow hedges	2,266	(846)	7,545	750
Tax effect	(574)	328	(1,912)	(290)
Net of tax amount	1,692	(518)	5,633	460
Total other comprehensive (loss) income, net of tax	(3,259)	10,111	(18,303)	13,081
Total Comprehensive Income	$ 41,125	$ 43,798	$ 64,640	$ 78,023

XML

Unaudited Condensed Consolidated Statements of Changes in Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock	Paid-in Capital	Retained Earnings Substantially Restricted	Accumulated Other Comprehensive (Loss) Income
Balance, beginning, shares at Dec. 31, 2016		76,525,402
Balance, beginning at Dec. 31, 2016	$ 1,116,869	$ 765	$ 749,107	$ 374,379	$ (7,382)
Net income	64,942			64,942
Other comprehensive income (loss)	13,081				13,081
Cash dividends declared	(32,550)			(32,550)
Stock issued in connection with acquisitions, shares		1,381,661
Stock issued in connection with acquisitions, amount	46,673	$ 14	46,659
Stock issuances under stock incentive plans, shares		94,827
Stock issuances under stock incentive plans, value	0	$ 1	(1)
Stock-based compensation and related taxes	942		942
Balance, ending, shares at Jun. 30, 2017		78,001,890
Balance, ending at Jun. 30, 2017	$ 1,209,957	$ 780	796,707	406,771	5,699
Balance, beginning, shares at Dec. 31, 2017	78,006,956	78,006,956
Balance, beginning at Dec. 31, 2017	$ 1,199,057	$ 780	797,997	402,259	(1,979)
Net income	82,943			82,943
Other comprehensive income (loss)	(18,303)				(18,303)
Cash dividends declared	(41,497)			(41,497)
Stock issued in connection with acquisitions, shares		6,432,868
Stock issued in connection with acquisitions, amount	250,807	$ 64	250,743
Stock issuances under stock incentive plans, shares		76,826
Stock issuances under stock incentive plans, value	0	$ 1	(1)
Stock-based compensation and related taxes	$ 985		985
Balance, ending, shares at Jun. 30, 2018	84,516,650	84,516,650
Balance, ending at Jun. 30, 2018	$ 1,473,992	$ 845	$ 1,049,724	$ 443,705	$ (20,282)

XML

Unaudited Condensed Consolidated Statements of Changes in Stockholders' Equity (Parenthetical) - $ / shares	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Cash dividends declared per share	$ 0.49	$ 0.42
Retained Earnings Substantially Restricted
Cash dividends declared per share	$ 0.49	$ 0.42

XML

Unaudited Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Operating Activities
Net income	$ 82,943	$ 64,942
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for loan losses	5,513	4,611
Net amortization of debt securities	6,835	11,232
Net accretion of purchase accounting adjustments	(1,425)	(4,994)
Amortization of debt modification costs	825	0
Origination of loans held for sale	(415,553)	(417,973)
Proceeds from loans held for sale	425,484	475,919
Gain on sale of loans	(14,239)	(13,890)
Loss on sale of debt securities	389	622
Bank-owned life insurance income, net	(1,310)	(660)
Stock-based compensation, net of tax benefits	1,868	1,017
Depreciation of premises and equipment	7,544	7,334
Gain on sale of other real estate owned and write-downs, net	(81)	(1,033)
Amortization of core deposit intangibles	2,804	1,240
Amortization of investments in variable interest entities	2,911	2,007
Net (increase) decrease in accrued interest receivable	(4,306)	7
Net decrease in other assets	1,048	6,536
Net increase (decrease) in accrued interest payable	57	(51)
Net decrease in other liabilities	(2,070)	(191)
Net cash provided by operating activities	99,237	136,675
Investing Activities
Sales of available-for-sale debt securities	219,855	111,003
Maturities, prepayments and calls of available-for-sale debt securities	156,482	224,664
Purchases of available-for-sale debt securities	(499,552)	(17,402)
Maturities, prepayments and calls of held-to-maturity debt securities	26,767	15,235
Principal collected on loans	1,269,145	947,134
Loan originations	(1,681,348)	(1,327,095)
Net additions to premises and equipment	(11,297)	(5,179)
Proceeds from sale of other real estate owned	1,693	6,759
Proceeds from redemption of non-marketable equity securities	41,393	42,500
Purchases of non-marketable equity securities	(40,385)	(39,399)
Proceeds from bank-owned life insurance	299	437
Investments in variable interest entities	(23,072)	(10,177)
Net cash received from (paid in) acquisitions	101,268	(4,091)
Net cash used in investing activities	(438,752)	(55,611)
Financing Activities
Net increase in deposits	528,881	128,827
Net decrease in securities sold under agreements to repurchase	(30,238)	(22,600)
Net increase (decrease) in short-term Federal Home Loan Bank advances	40,000	(62,800)
Repayments of long-term Federal Home Loan Bank advances	(528)	(227)
Net (decrease) increase in other borrowed funds	(9,850)	1,377
Cash dividends paid	(19,551)	(39,139)
Tax withholding payments for stock-based compensation	(1,071)	(1,453)
Net cash provided by financing activities	507,643	3,985
Net increase in cash, cash equivalents and restricted cash	168,128	85,049
Cash, cash equivalents and restricted cash at beginning of period	200,004	152,541
Cash, cash equivalents and restricted cash at end of period	368,132	237,590
Supplemental Disclosure of Cash Flow Information
Cash paid during the period for interest	16,878	15,191
Cash paid during the period for income taxes	12,403	18,449
Supplemental Disclosure of Non-Cash Investing Activities
Sale and refinancing of other real estate owned	372	345
Transfer of loans to other real estate owned	1,144	3,521
Dividends declared but not paid	22,211	16,548
Fair value of common stock shares issued	250,807	46,673
Cash consideration for outstanding shares	16,265	17,342
Effective settlement of a pre-existing relationship	10,054	0
Fair Value of Assets Acquired	1,549,158	355,230
Liabilities Assumed	$ 1,383,756	$ 321,824

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Nature of Operations and Summary of Significant Accounting Policies

6 Months Ended

Jun. 30, 2018

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, Utah, Washington, Wyoming, Colorado and Arizona through its wholly-owned bank subsidiary, Glacier Bank (“Bank”). The Company offers a wide range of banking products and services, including: 1) retail banking; 2) business banking; 3) real estate, commercial, agriculture and consumer loans; and 4) mortgage origination services. The Company serves individuals, small to medium-sized businesses, community organizations and public entities.

In the opinion of management, the accompanying unaudited condensed consolidated financial statements contain all adjustments (consisting of normal recurring adjustments) necessary for a fair presentation of the Company’s financial condition as of June 30, 2018, the results of operations and comprehensive income for the three and six month periods ended June 30, 2018 and 2017, and changes in stockholders’ equity and cash flows for the six month periods ended June 30, 2018 and 2017. The condensed consolidated statement of financial condition of the Company as of December 31, 2017 has been derived from the audited consolidated statements of the Company as of that date.

The accompanying unaudited condensed consolidated financial statements do not include all of the information and footnotes required by accounting principles generally accepted in the United States of America (“GAAP”) for complete financial statements. These unaudited condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and notes thereto contained in the Company’s Annual Report on Form 10-K for the year ended December 31, 2017. Operating results for the six months ended June 30, 2018 are not necessarily indicative of the results anticipated for the year ending December 31, 2018.

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.

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 debt 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 and the Bank. The Bank consists of fourteen bank divisions, a treasury division, an information technology division and a centralized mortgage division. The treasury division includes the Bank’s investment portfolio and wholesale borrowings, the information technology division includes the Bank’s internal data processing, and the centralized mortgage division includes mortgage loan servicing and secondary market sales. The Bank divisions operate under separate names, management teams and advisory 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 (“CEO”) (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.

The Bank has subsidiary interests in variable interest entities (“VIE”) for which the Bank has both the power to direct the VIE’s significant activities and the obligation to absorb losses or right to receive benefits of the VIE that could potentially be significant to the VIE. These subsidiary interests are included in the Company’s consolidated financial statements. The Bank also has subsidiary interests in VIEs for which the Bank does not have a controlling financial interest and is not the primary beneficiary. These subsidiary interests are not included in the Company’s consolidated financial statements.

The parent holding company owns non-bank subsidiaries that have issued trust preferred securities as Tier 1 capital instruments. The trust subsidiaries are not included in the Company’s consolidated financial statements. The Company's investments in the trust subsidiaries are included in other assets on the Company's statements of financial condition.

In February 2018, the Company completed its acquisition of Inter-Mountain Bancorp., Inc. and its wholly-owned subsidiary, First Security Bank, a community bank based in Bozeman, Montana (collectively, “FSB”). In January 2018, the Company completed its acquisition of Columbine Capital Corp., and its wholly-owned subsidiary, Collegiate Peaks Bank, a community bank based in Buena Vista, Colorado (collectively, “Collegiate”). 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. For additional information relating to recent mergers and acquisitions, see Note 12.

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. 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.

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 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.

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 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 and overdraft 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 other real estate owned (“OREO”) until such time as it is sold.

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.

Revenue Recognition

The Company recognizes revenue when services or products are transferred to customers in an amount that reflects the consideration to which the Company expects to be entitled. The Company’s principal source of revenue is interest income from debt securities and loans. Revenue from contracts with customers within the scope of Accounting Standards Codification^™ (“ASC”) Topic 606 was $36,553,000 and $34,234,000 for the six months ended June 30, 2018 and 2017, respectively, and largely consisted of revenue from service charges and other fees from deposits (e.g., overdraft fees, ATM fees, debit card fees). Due to the short-term nature of the Company’s contracts with customers, an insignificant amount of receivables related to such revenue was recorded at June 30, 2018 and December 31, 2017 and there were no impairment losses recognized. Policies specific to revenue from contracts with customers include the following:

Service Charges. Revenue from service charges consists of service charges and fees on deposit accounts under depository agreements with customers to provide access to deposited funds and, when applicable, pay interest on deposits. Service charges on deposit accounts may be transactional or non-transactional in nature. Transactional service charges occur in the form of a service or penalty and are charged upon the occurrence of an event (e.g., overdraft fees, ATM fees, wire transfer fees). Transactional service charges are recognized as services are delivered to and consumed by the customer, or as penalty fees are charged. Non-transactional service charges are charges that are based on a broader service, such as account maintenance fees and dormancy fees, and are recognized on a monthly basis.

Debit Card Fees. Revenue from debit card fees includes interchange fee income from debit cards processed through card association networks. Interchange fees represent a portion of a transaction amount that the Company and other involved parties retain to compensate themselves for giving the cardholder immediate access to funds. Interchange rates are generally set by the card association networks and are based on purchase volumes and other factors. The Company records interchange fees as services are provided.

Accounting Guidance Adopted in 2018

The 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 accounting standards that may have had a material effect on the Company’s financial position or results of operations.

Financial Instruments. In January 2016, FASB amended ASC Topic 825 to address certain aspects of recognition, measurement, presentation, and disclosure of financial instruments. The amendments were effective for public business entities for the first interim and annual reporting periods beginning after December 15, 2017. Amendments were to be applied by means of a cumulative-effect adjustment to the Company’s statements of financial condition as of the beginning of the reporting year of adoption. The amendments impacted the Company as follows: 1) equity investments (with certain exclusions) are to be measured at fair value with the changes recognized in net income; 2) an exit price must be utilized when measuring the fair value of financial instruments; and 3) additional disclosures are required relating to other comprehensive income (“OCI”), the evaluation of a valuation allowance on a deferred tax asset related to available-for-sale debt securities in combination with the entity’s other deferred tax assets, and other disclosures. The Company adopted the amendments effective January 1, 2018 and determined that the impact of these amendments did not have a significant impact on the Company’s equity securities, fair value disclosures, financial position or results of operations. The amendments changed the method utilized to disclose the fair value of the loan portfolio to an exit price notion when measuring fair value. The Company developed processes to comply with the disclosure requirements of such amendments and accounting policies and procedures were updated accordingly. For additional information on fair value of assets and liabilities, see Note 11.

Revenue Recognition. In May 2014, FASB amended ASC Topic 606 to clarify the principles for recognizing revenue and develop a common revenue standard among industries. The new guidance established the following core principle: 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 were provided for a company or organization to follow to achieve such core principle. The new guidance also included a cohesive set of disclosure requirements that provided 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 Company adopted the new revenue recognition guidance effective January 1, 2018 and determined the majority of the Company’s revenue sources, such as interest income from debt securities and loans, fee income from loans and gain on sale of loans, were not within the scope of Topic 606. The Company evaluated the revenue sources determined to be in scope of Topic 606, including service charges and fee income on deposits and gain or loss on sale of OREO and determined the adoption of the guidance did not have a significant impact to the Company’s financial position or results of operations; however, OREO policies and procedures were updated and implemented and new disclosures about the Company’s revenue have been incorporated into the notes to the financial statements.

Accounting Guidance Pending Adoption at June 30, 2018

The following paragraphs provide descriptions of newly issued but not yet effective accounting standards that could have a material effect on the Company’s financial position or results of operations.

Derivatives and Hedging. In August 2017, FASB amended ASC Topic 815 to improve the financial reporting of hedging relationships to better portray the economic results of an entity’s risk management activities in its financial statements. In addition, the amendments made targeted improvements to simplify the application of the hedge accounting guidance. The amendments are effective for public business entities for the first interim and annual reporting periods beginning after December 15, 2018 and early adoption is permitted. The Company is currently evaluating the full impact of the amendments on its existing interest rate swaps and whether it will early adopt. The Company does not expect there to be an impact to the Company’s financial position and results of operations, although, there may be additional financial statement disclosures. The accounting policies and procedures will be modified after the Company has fully evaluated the standard, although significant changes are not expected. For additional information on derivatives, see Note 7.

Receivables - Nonrefundable Fees and Other Costs. In March 2017, FASB amended ASC Subtopic 310-20 to shorten the amortization period for certain callable debt securities held at a premium. Specifically, the amendments require the premium to be amortized to the earliest call date instead of the maturity date. The amendments do not require an accounting change for securities held at a discount; the discount continues to be amortized to maturity. The amendments are effective for public business entities for the first interim and annual reporting periods beginning after December 15, 2018. Early adoption is permitted and if adopted in an interim period, any adjustments should be reflected as of the beginning of the year that includes the interim period. The entity should apply the amendments on a modified retrospective basis through a cumulative-effective adjustment directly to retained earnings as of the beginning of the period of adoption. The Company has premiums on debt securities that are currently being amortized to the maturity date, primarily in the state and local governments category. If the Company were to adopt these amendments as of July 1, 2018, the Company estimates that $21,869,000 of the premium associated with debt securities would be adjusted to retained earnings. The Company is currently reviewing the amendments to ensure it is fully compliant by the adoption date, including accounting policies and procedures, and doesn’t expect to early adopt.

Goodwill and Other Intangibles. In January 2017, FASB amended ASC Topic 350 to simplify the measurement of goodwill by eliminating Step 2 from the goodwill impairment test. Instead, under these amendments, an entity should perform its annual, or interim, goodwill impairment test by comparing the fair value of a reporting unit with its carrying amount. An entity should recognize an impairment charge for the amount by which the carrying amount exceeds the reporting unit’s fair value; however, the loss should not exceed the total amount of goodwill allocated to that reporting unit. The amendments are effective for public business entities for the first interim and annual reporting periods beginning after December 15, 2019. Early adoption is permitted for interim or annual goodwill impairment tests performed on testing dates after January 1, 2017. The Company has goodwill from prior business combinations and performs an annual impairment test or more frequently if changes or circumstances occur that would more-likely-than-not reduce the fair value of the reporting unit below its carrying value. During the third quarter of 2017, the Company performed its impairment assessment and determined the fair value of the aggregated reporting units exceed the carrying value, such that the Company’s goodwill was not considered impaired. Although the Company cannot anticipate future goodwill impairment assessments, based on the most recent assessment, it is unlikely that an impairment amount would need to be calculated and, therefore, the Company does not anticipate a material impact from these amendments to the Company’s financial position and results of operations. The current accounting policies and processes are not anticipated to change, except for the elimination of the Step 2 analysis. For additional information regarding goodwill impairment testing, see Note 4.

Financial Instruments. In June 2016, FASB amended ASC Topic 326 to replace the incurred loss model with a methodology that reflects expected credit losses over the life of the loan and requires consideration of a broader range of reasonable and supportable information to calculate credit loss estimates. The amendments are effective for public business entities for the first interim and annual reporting periods beginning after December 15, 2019. The Company is currently evaluating the impact of these amendments to the Company’s financial position and results of operations and currently does not know or cannot reasonably quantify the impact of the adoption of the amendments as a result of the complexity and extensive changes from the amendments. The ALLL is a material estimate of the Company and given the change from an incurred loss model to a methodology that considers the credit loss over the life of the loan, there is the potential for an increase in the ALLL at adoption date. The Company is anticipating a significant change in the processes and procedures to calculate the ALLL, including changes in assumptions and estimates to consider expected credit losses over the life of the loan versus the current accounting practice that utilizes the incurred loss model. The Company will also develop new procedures for determining an allowance for credit losses relating to held-to-maturity debt securities. In addition, the current accounting policy and procedures for other-than-temporary impairment on available-for-sale debt securities will be replaced with an allowance approach. The Company has formed a project team and is actively reviewing the standard for developing and implementing processes and procedures to ensure it is fully compliant with the amendments at adoption date. For additional information on the ALLL, see Note 3.

Leases. In February 2016, FASB amended ASC Topic 842 to address several aspects of lease accounting with the significant change being the recognition of lease assets and lease liabilities for leases previously classified as operating leases. The amendments are effective for public business entities for the first interim and annual reporting periods beginning after December 15, 2018, and early adoption is permitted. The Company has lease agreements for which the amendments will require the recognition of a lease liability to make lease payments and a right-of-use asset which will represent its right to use the underlying asset for the lease term. The Company is currently reviewing the amendments to ensure it is fully compliant by the adoption date and doesn’t expect to early adopt. The Company does not expect the amendments to have a material effect on the Company’s financial position or results of operations since the Company does not have a significant amount of lease agreements. New processes and accounting policies will be implemented to comply with the amendments.

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Debt Securities

6 Months Ended

Jun. 30, 2018

Investments, Debt and Equity Securities [Abstract]

Debt Securities

Debt Securities

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

	June 30, 2018
	Amortized Cost		Gross Unrealized			Fair Value
(Dollars in thousands)			Gains	Losses
Available-for-sale
U.S. government and federal agency	$	28,245	39	(191	)	28,093
U.S. government sponsored enterprises	120,327		—	(967	)	119,360
State and local governments	651,113		13,318	(10,513	)	653,918
Corporate bonds	319,344		666	(1,588	)	318,422
Residential mortgage-backed securities	909,306		436	(23,394	)	886,348
Commercial mortgage-backed securities	174,339		—	(3,128	)	171,211
Total available-for-sale	2,202,674		14,459	(39,781	)	2,177,352
Held-to-maturity
State and local governments	620,409		10,499	(12,399	)	618,509
Total held-to-maturity	620,409		10,499	(12,399	)	618,509
Total debt securities	$	2,823,083	24,958	(52,180	)	2,795,861

	December 31, 2017
	Amortized Cost		Gross Unrealized			Fair Value
(Dollars in thousands)			Gains	Losses
Available-for-sale
U.S. government and federal agency	$	31,216	54	(143	)	31,127
U.S. government sponsored enterprises	19,195		—	(104	)	19,091
State and local governments	614,366		20,299	(5,164	)	629,501
Corporate bonds	216,443		802	(483	)	216,762
Residential mortgage-backed securities	785,960		1,253	(7,930	)	779,283
Commercial mortgage-backed securities	104,324		25	(1,870	)	102,479
Total available-for-sale	1,771,504		22,433	(15,694	)	1,778,243
Held-to-maturity
State and local governments	648,313		20,346	(8,573	)	660,086
Total held-to-maturity	648,313		20,346	(8,573	)	660,086
Total debt securities	$	2,419,817	42,779	(24,267	)	2,438,329

The following table presents the amortized cost and fair value of available-for-sale and held-to-maturity debt securities by contractual maturity at June 30, 2018. Actual maturities may differ from expected or contractual maturities since issuers have the right to prepay obligations with or without prepayment penalties.

	June 30, 2018
	Available-for-Sale			Held-to-Maturity
(Dollars in thousands)	Amortized Cost		Fair Value	Amortized Cost	Fair Value
Due within one year	$	144,924	144,621	—	—
Due after one year through five years	356,279		354,782	3,189	3,234
Due after five years through ten years	273,195		276,734	107,480	106,764
Due after ten years	344,631		343,656	509,740	508,511
	1,119,029		1,119,793	620,409	618,509
Mortgage-backed securities 1	1,083,645		1,057,559	—	—
Total	$	2,202,674	2,177,352	620,409	618,509

______________________________

¹Mortgage-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 debt securities and the associated gains and losses that have been included in earnings are listed below:

	Three Months ended					Six Months ended
(Dollars in thousands)	June 30, 2018			June 30, 2017		June 30, 2018		June 30, 2017
Available-for-sale
Proceeds from sales and calls of debt securities	$	4,765		104,172		233,446		112,663
Gross realized gains 1	9			3,057		15		3,067
Gross realized losses 1	(73		)	(3,514	)	(361	)	(3,663	)
Held-to-maturity
Proceeds from calls of debt securities	13,470			7,445		28,935		15,235
Gross realized gains 1	10			72		64		153
Gross realized losses 1	(2		)	(137	)	(107	)	(179	)

______________________________

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

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

	June 30, 2018
	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	$	11,849	(51	)	10,174	(140	)	22,023	(191	)
U.S. government sponsored enterprises	115,977		(873	)	3,383	(94	)	119,360	(967	)
State and local governments	189,904		(3,642	)	115,925	(6,871	)	305,829	(10,513	)
Corporate bonds	224,748		(1,240	)	27,202	(348	)	251,950	(1,588	)
Residential mortgage-backed securities	572,541		(13,293	)	225,798	(10,101	)	798,339	(23,394	)
Commercial mortgage-backed securities	119,796		(1,266	)	51,415	(1,862	)	171,211	(3,128	)
Total available-for-sale	$	1,234,815	(20,365	)	433,897	(19,416	)	1,668,712	(39,781	)
Held-to-maturity
State and local governments	$	167,716	(4,293	)	90,207	(8,106	)	257,923	(12,399	)
Total held-to-maturity	$	167,716	(4,293	)	90,207	(8,106	)	257,923	(12,399	)

	December 31, 2017
	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	$	1,208	(5	)	13,179	(138	)	14,387	(143	)
U.S. government sponsored enterprises	14,926		(56	)	3,425	(48	)	18,351	(104	)
State and local governments	61,126		(689	)	121,181	(4,475	)	182,307	(5,164	)
Corporate bonds	99,636		(264	)	29,034	(219	)	128,670	(483	)
Residential mortgage-backed securities	372,175		(3,050	)	254,721	(4,880	)	626,896	(7,930	)
Commercial mortgage-backed securities	37,650		(469	)	62,968	(1,401	)	100,618	(1,870	)
Total available-for-sale	$	586,721	(4,533	)	484,508	(11,161	)	1,071,229	(15,694	)
Held-to-maturity
State and local governments	$	21,207	(186	)	105,486	(8,387	)	126,693	(8,573	)
Total held-to-maturity	$	21,207	(186	)	105,486	(8,387	)	126,693	(8,573	)

Based on an analysis of its debt securities with unrealized losses as of June 30, 2018 and December 31, 2017, 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 debt securities is expected to recover as payments are received and the securities approach maturity. At June 30, 2018, management determined that it did not intend to sell debt securities with unrealized losses, and there was no expected requirement to sell any of its debt securities with unrealized losses before recovery of their amortized cost.

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Loans Receivable, Net

6 Months Ended

Jun. 30, 2018

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 Six Months ended			At or for the Year ended
(Dollars in thousands)	June 30, 2018			December 31, 2017
Residential real estate loans	$	835,382		720,728
Commercial loans
Real estate	4,384,781			3,577,139
Other commercial	1,940,435			1,579,353
Total	6,325,216			5,156,492
Consumer and other loans
Home equity	511,043			457,918
Other consumer	277,031			242,686
Total	788,074			700,604
Loans receivable	7,948,672			6,577,824
Allowance for loan and lease losses	(131,564		)	(129,568	)
Loans receivable, net	$	7,817,108		6,448,256
Net deferred origination (fees) costs included in loans receivable	$	(4,288	)	(2,643	)
Net purchase accounting (discounts) premiums included in loans receivable	$	(28,695	)	(16,325	)
Weighted-average interest rate on loans (tax-equivalent)	4.89		%	4.81	%

The following tables summarize the activity in the ALLL by loan class:

	Three Months ended June 30, 2018
(Dollars in thousands)	Total			Residential Real Estate		Commercial Real Estate		Other Commercial		Home Equity		Other Consumer
Balance at beginning of period	$	127,608		10,634		68,342		38,108		6,040		4,484
Provision for loan losses	4,718			258		2,774		675		8		1,003
Charge-offs	(2,604		)	(44	)	(190	)	(640	)	(7	)	(1,723	)
Recoveries	1,842			55		319		521		51		896
Balance at end of period	$	131,564		10,903		71,245		38,664		6,092		4,660

	Three Months ended June 30, 2017
(Dollars in thousands)	Total			Residential Real Estate		Commercial Real Estate		Other Commercial		Home Equity		Other Consumer
Balance at beginning of period	$	129,226		11,535		64,753		39,157		7,679		6,102
Provision for loan losses	3,013			(10	)	4,559		(1,934	)	229		169
Charge-offs	(4,589		)	(21	)	(1,146	)	(650	)	(347	)	(2,425	)
Recoveries	2,227			18		337		411		101		1,360
Balance at end of period	$	129,877		11,522		68,503		36,984		7,662		5,206

	Six Months ended June 30, 2018
(Dollars in thousands)	Total			Residential Real Estate		Commercial Real Estate		Other Commercial		Home Equity		Other Consumer
Balance at beginning of period	$	129,568		10,798		68,515		39,303		6,204		4,748
Provision for loan losses	5,513			81		3,019		672		(194	)	1,935
Charge-offs	(7,611		)	(47	)	(1,223	)	(2,428	)	(19	)	(3,894	)
Recoveries	4,094			71		934		1,117		101		1,871
Balance at end of period	$	131,564		10,903		71,245		38,664		6,092		4,660

	Six Months ended June 30, 2017
(Dollars in thousands)	Total			Residential Real Estate		Commercial Real Estate		Other Commercial		Home Equity		Other Consumer
Balance at beginning of period	$	129,572		12,436		65,773		37,823		7,572		5,968
Provision for loan losses	4,611			(936	)	4,189		(145	)	358		1,145
Charge-offs	(8,818		)	(43	)	(2,034	)	(1,481	)	(443	)	(4,817	)
Recoveries	4,512			65		575		787		175		2,910
Balance at end of period	$	129,877		11,522		68,503		36,984		7,662		5,206

The following tables disclose the recorded investment in loans and the balance in the ALLL by loan class:

	June 30, 2018
(Dollars in thousands)	Total		Residential Real Estate	Commercial Real Estate	Other Commercial	Home Equity	Other Consumer
Loans receivable
Individually evaluated for impairment	$	140,427	12,426	90,896	30,785	3,589	2,731
Collectively evaluated for impairment	7,808,245		822,956	4,293,885	1,909,650	507,454	274,300
Total loans receivable	$	7,948,672	835,382	4,384,781	1,940,435	511,043	277,031
ALLL
Individually evaluated for impairment	$	2,252	216	707	957	—	372
Collectively evaluated for impairment	129,312		10,687	70,538	37,707	6,092	4,288
Total ALLL	$	131,564	10,903	71,245	38,664	6,092	4,660

	December 31, 2017
(Dollars in thousands)	Total		Residential Real Estate	Commercial Real Estate	Other Commercial	Home Equity	Other Consumer
Loans receivable
Individually evaluated for impairment	$	119,994	12,399	77,536	23,032	3,755	3,272
Collectively evaluated for impairment	6,457,830		708,329	3,499,603	1,556,321	454,163	239,414
Total loans receivable	$	6,577,824	720,728	3,577,139	1,579,353	457,918	242,686
ALLL
Individually evaluated for impairment	$	5,223	246	500	3,851	56	570
Collectively evaluated for impairment	124,345		10,552	68,015	35,452	6,148	4,178
Total ALLL	$	129,568	10,798	68,515	39,303	6,204	4,748

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 following tables disclose information related to impaired loans by loan class:

	At or for the Three or Six Months ended June 30, 2018
(Dollars in thousands)	Total		Residential Real Estate	Commercial Real Estate	Other Commercial	Home Equity	Other Consumer
Loans with a specific valuation allowance
Recorded balance	$	16,513	2,501	10,169	2,671	—	1,172
Unpaid principal balance	16,871		2,574	10,369	2,719	—	1,209
Specific valuation allowance	2,252		216	707	957	—	372
Average balance - three months	20,343		3,064	9,378	6,537	33	1,331
Average balance - six months	19,458		3,035	7,767	7,086	84	1,486
Loans without a specific valuation allowance
Recorded balance	123,914		9,925	80,727	28,114	3,589	1,559
Unpaid principal balance	148,501		11,061	99,904	31,724	4,157	1,655
Average balance - three months	119,143		9,778	82,818	21,614	3,425	1,508
Average balance - six months	113,530		9,659	79,542	19,359	3,473	1,497
Total
Recorded balance	140,427		12,426	90,896	30,785	3,589	2,731
Unpaid principal balance	165,372		13,635	110,273	34,443	4,157	2,864
Specific valuation allowance	2,252		216	707	957	—	372
Average balance - three months	139,486		12,842	92,196	28,151	3,458	2,839
Average balance - six months	132,988		12,694	87,309	26,445	3,557	2,983

	At or for the Year ended December 31, 2017
(Dollars in thousands)	Total		Residential Real Estate	Commercial Real Estate	Other Commercial	Home Equity	Other Consumer
Loans with a specific valuation allowance
Recorded balance	$	17,689	2,978	4,545	8,183	186	1,797
Unpaid principal balance	18,400		3,046	4,573	8,378	199	2,204
Specific valuation allowance	5,223		246	500	3,851	56	570
Average balance	18,986		2,928	5,851	8,477	359	1,371
Loans without a specific valuation allowance
Recorded balance	102,305		9,421	72,991	14,849	3,569	1,475
Unpaid principal balance	122,833		10,380	89,839	16,931	4,098	1,585
Average balance	107,945		9,834	76,427	15,129	4,734	1,821
Total
Recorded balance	119,994		12,399	77,536	23,032	3,755	3,272
Unpaid principal balance	141,233		13,426	94,412	25,309	4,297	3,789
Specific valuation allowance	5,223		246	500	3,851	56	570
Average balance	126,931		12,762	82,278	23,606	5,093	3,192

Interest income recognized on impaired loans for the six months ended June 30, 2018 and 2017 was not significant.

The following tables present an aging analysis of the recorded investment in loans by loan class:

	June 30, 2018
(Dollars in thousands)	Total		Residential Real Estate	Commercial Real Estate	Other Commercial	Home Equity	Other Consumer
Accruing loans 30-59 days past due	$	24,813	1,017	13,424	5,908	2,617	1,847
Accruing loans 60-89 days past due	14,837		3,595	4,603	5,079	800	760
Accruing loans 90 days or more past due	12,751		1,050	5,958	5,242	311	190
Non-accrual loans	58,170		6,851	34,643	13,495	2,748	433
Total past due and non-accrual loans	110,571		12,513	58,628	29,724	6,476	3,230
Current loans receivable	7,838,101		822,869	4,326,153	1,910,711	504,567	273,801
Total loans receivable	$	7,948,672	835,382	4,384,781	1,940,435	511,043	277,031

	December 31, 2017
(Dollars in thousands)	Total		Residential Real Estate	Commercial Real Estate	Other Commercial	Home Equity	Other Consumer
Accruing loans 30-59 days past due	$	26,375	6,252	12,546	3,634	2,142	1,801
Accruing loans 60-89 days past due	11,312		794	5,367	3,502	987	662
Accruing loans 90 days or more past due	6,077		2,366	609	2,973	—	129
Non-accrual loans	44,833		4,924	27,331	8,298	3,338	942
Total past due and non-accrual loans	88,597		14,336	45,853	18,407	6,467	3,534
Current loans receivable	6,489,227		706,392	3,531,286	1,560,946	451,451	239,152
Total loans receivable	$	6,577,824	720,728	3,577,139	1,579,353	457,918	242,686

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:

	Three Months ended June 30, 2018
(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	8		1	4	1	2	—
Pre-modification recorded balance	$	5,273	227	4,623	171	252	—
Post-modification recorded balance	$	5,159	227	4,509	171	252	—
TDRs that subsequently defaulted
Number of loans	—		—	—	—	—	—
Recorded balance	$	—	—	—	—	—	—

	Three Months ended June 30, 2017
(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	7		1	4	1	1	—
Pre-modification recorded balance	$	12,401	55	12,035	286	25	—
Post-modification recorded balance	$	9,719	55	9,353	286	25	—
TDRs that subsequently defaulted
Number of loans	—		—	—	—	—	—
Recorded balance	$	—	—	—	—	—	—

	Six Months ended June 30, 2018
(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	20		3	8	7	2	—
Pre-modification recorded balance	$	21,270	666	12,901	7,451	252	—
Post-modification recorded balance	$	21,156	666	12,787	7,451	252	—
TDRs that subsequently defaulted
Number of loans	1		1	—	—	—	—
Recorded balance	$	334	334	—	—	—	—

	Six Months ended June 30, 2017
(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	17		3	6	5	2	1
Pre-modification recorded balance	$	21,956	335	12,617	8,816	178	10
Post-modification recorded balance	$	19,274	335	9,935	8,816	178	10
TDRs that subsequently defaulted
Number of loans	1		—	—	1	—	—
Recorded balance	$	18	—	—	18	—	—

The modifications for the TDRs that occurred during the six months ended June 30, 2018 and 2017 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 $1,313,000 and $4,170,000 for the six months ended June 30, 2018 and 2017, respectively, for which OREO was received in full or partial satisfaction of the loans. The majority of such TDRs were in commercial real estate and home equity for the six months ended June 30, 2018 and 2017, respectively. At June 30, 2018 and December 31, 2017, the Company had $1,172,000 and $743,000, respectively, of consumer mortgage loans secured by residential real estate properties for which formal foreclosure proceedings are in process. At June 30, 2018 and December 31, 2017, the Company had $968,000 and $893,000, respectively, of OREO secured by residential real estate properties.

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Goodwill

6 Months Ended

Jun. 30, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill

Goodwill

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

	Three Months ended			Six Months ended
(Dollars in thousands)	June 30, 2018		June 30, 2017	June 30, 2018	June 30, 2017
Net carrying value at beginning of period	$	289,535	147,053	177,811	147,053
Acquisitions	—		30,758	111,724	30,758
Net carrying value at end of period	$	289,535	177,811	289,535	177,811

The Company performed its annual goodwill impairment test during the third quarter of 2017 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 first half of 2018 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 June 30, 2018. 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. Accumulated impairment charges were $40,159,000 as of June 30, 2018 and December 31, 2017.

For additional information on goodwill related to acquisitions, see Note 12.

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Variable Interest Entities

6 Months Ended

Jun. 30, 2018

Equity Method Investments and Joint Ventures [Abstract]

Variable Interest Entities

Variable Interest Entities

A VIE is a partnership, limited liability company, trust or other legal entity that meets one of the following criteria: 1) the entity’s equity investment at risk is not sufficient to permit the entity to finance its activities without additional subordinated financial support from other parties; 2) the holders of the equity investment at risk, as a group, lack the characteristics of a controlling financial interest; and 3) the voting rights of some holders of the equity investment at risk are disproportionate to their obligation to absorb losses or receive returns, and substantially all of the activities are conducted on behalf of the holder of equity investment at risk with disproportionately few voting rights. A VIE must be consolidated by the Company if it is deemed to be the primary beneficiary, which is the party involved with the VIE that has both: 1) the power to direct the activities of the VIE that most significantly affect the VIE’s economic performance; and 2) the obligation to absorb the losses of the VIE that could potentially be significant to the VIE or the right to receive benefits from the VIE that could potentially be significant to the VIE.

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 NMTC program provides federal tax incentives to investors to make investments in distressed communities and promotes economic improvements through the development of successful businesses in these communities. The NMTC is available to investors over a seven-year period and is subject to recapture if certain events occur during such period. The maximum exposure to loss in the CDEs 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 Company has evaluated the variable interests held by the Company in each CDE (NMTC) investment and determined the Company does not individually meet the characteristics of a primary beneficiary; however, the related-party group does meet the criteria as a group and substantially all of the activities of the CDEs either involve or are conducted on behalf of the Company. As a result, the Company is the primary beneficiary of the CDEs and their assets, liabilities, and results of operations are included in the Company’s consolidated financial statements. The primary activities of the CDEs are recognized in commercial loans 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 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.

(Dollars in thousands)	June 30, 2018		December 31, 2017
Assets
Loans receivable	$	64,362	57,796
Accrued interest receivable	93		94
Other assets	37,164		15,885
Total assets	$	101,619	73,775
Liabilities
Other borrowed funds	$	9,696	7,964
Accrued interest payable	1		1
Other liabilities	27		98
Total liabilities	$	9,724	8,063

Unconsolidated Variable Interest Entities

The Company has equity investments in Low-Income Housing Tax Credit (“LIHTC”) partnerships with carrying values of $28,269,000 and $9,169,000 as of June 30, 2018 and December 31, 2017, respectively. The LIHTCs are indirect federal subsidies to finance low-income housing and are used in connection with both newly constructed and renovated residential rental buildings. Once a project is placed in service, it is generally eligible for the tax credit for ten consecutive years. To continue generating the tax credit and to avoid tax credit recapture, a LIHTC building must satisfy specific low-income housing compliance rules for a full fifteen-year period. 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 Company has evaluated the variable interests held by the Company in each LIHTC investment and determined that the Company does not have controlling financial interests in such investments, and is not the primary beneficiary. The Company reports the investments in the unconsolidated LIHTCs as other assets on the Company’s statements of financial condition. Total unfunded contingent commitments related to the Company’s LIHTC investments totaled $10,765,000 at June 30, 2018, of which $7,633,000 is expected to be fulfilled in 2018 and $3,132,000 is expected to be fulfilled in 2019. There were no impairment losses on the Company’s LIHTC investments during the six months ended June 30, 2018 and 2017.

The Company has elected to use the proportional amortization method, and more specifically the practical expedient method, for the amortization of all eligible LIHTC investments and amortization expense is recognized as a component of income tax expense. The following table summarizes the amortization expense and the amount of tax credits and other tax benefits recognized for qualified affordable housing project investments during the periods presented.

	Three Months ended			Six Months ended
(Dollars in thousands)	June 30, 2018		June 30, 2017	June 30, 2018	June 30, 2017
Amortization expense	$	1,030	640	1,921	1,143
Tax credits and other tax benefits recognized	1,423		976	2,663	1,752

The Company also 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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Securities Sold Under Agreements to Repurchase

6 Months Ended

Jun. 30, 2018

Transfers and Servicing [Abstract]

Securities Sold Under Agreements to Repurchase

Securities Sold Under Agreements to Repurchase

The Company’s securities sold under agreements to repurchase (“repurchase agreements”) totaled $361,515,000 and $362,573,000 at June 30, 2018 and December 31, 2017, respectively, and are secured by debt securities with carrying values of $503,935,000 and $475,601,000, 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:

	June 30, 2018
	Remaining Contractual Maturity of the Agreements
(Dollars in thousands)	Overnight and Continuous		30 - 90 Days	Greater Than 90 Days	Total
State and local governments	$	18,544	—	21,562	40,106
Residential mortgage-backed securities	319,731		—	—	319,731
Commercial mortgage-backed securities	1,678		—	—	1,678
Total	$	339,953	—	21,562	361,515

	December 31, 2017
	Remaining Contractual Maturity of the Agreements
(Dollars in thousands)	Overnight and Continuous		30 - 90 Days	Greater Than 90 Days	Total
Residential mortgage-backed securities	$	360,751	—	—	360,751
Commercial mortgage-backed securities	1,822		—	—	1,822
Total	$	362,573	—	—	362,573

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Derivatives and Hedging Activities

6 Months Ended

Jun. 30, 2018

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Derivatives and Hedging Activities

Derivatives and Hedging Activities

Interest Rate Swap Derivatives

As of June 30, 2018, the Company’s interest rate swap derivative financial instruments were designated as cash flow hedges and are summarized 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.

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 and Federal Home Loan Bank (“FHLB”) advances as the cash flow hedge and these hedged items were determined to be fully effective during current and prior periods. As such, no amount of ineffectiveness has been included in the Company’s statements of operations for the six months ended June 30, 2018 and 2017. Therefore, the aggregate fair value of the interest rate swaps was recorded in other liabilities with changes recorded in OCI. 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 $3,840,000 and $3,973,000 for the six months ended June 30, 2018 and 2017, and is reported as a component of interest expense on deposits and FHLB advances. Unless the interest rate swaps are terminated during the next year, the Company expects $1,817,000 of the unrealized loss reported in OCI at June 30, 2018 to be reclassified to interest expense during the next twelve months.

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

	Three Months ended					Six Months ended
(Dollars in thousands)	June 30, 2018			June 30, 2017		June 30, 2018		June 30, 2017
Interest rate swaps
Amount of gain (loss) recognized in OCI (effective portion)	$	1,689		(2,108	)	6,068		(1,844	)
Amount of loss reclassified from OCI to interest expense	(577		)	(1,262	)	(1,477	)	(2,594	)
Amount of loss recognized in other non-interest expense (ineffective portion)	—			—		—		—

The following table discloses the offsetting of financial assets and interest rate swap derivative assets.

	June 30, 2018					December 31, 2017
(Dollars in thousands)	Gross Amount of Recognized Assets		Gross Amount Offset in the Statements of Financial Position		Net Amounts of Assets Presented in the Statements of Financial Position	Gross Amount of Recognized Assets	Gross Amount Offset in the Statements of Financial Position	Net Amounts of Assets Presented in the Statements of Financial Position
Interest rate swaps	$	1,386	(1,386	)	—	—	—	—

The following table discloses the offsetting of financial liabilities and interest rate swap derivative liabilities.

	June 30, 2018					December 31, 2017
(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	$	3,230	(1,386	)	1,844	9,389	—	9,389

Pursuant to the interest rate swap agreements, the Company pledged collateral to the counterparty in the form of debt securities totaling $5,243,000 at June 30, 2018. There was $0 collateral pledged from the counterparty to the Company as of June 30, 2018. 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.

Residential Real Estate Derivatives

At June 30, 2018 and December 31, 2017, the Company had residential real estate derivatives for 1) commitments to fund certain residential real estate loans (interest rate locks) of $118,842,000 and $67,861,000, respectively, to be sold into the secondary market; and 2) forward commitments for the future delivery of residential real estate loans to third party investors. 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 the fair values of these derivatives are not recorded as gains on sale of loans because the changes were not significant.

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Other Expenses

6 Months Ended

Jun. 30, 2018

Other Expenses [Abstract]

Other Expenses

Other Expenses

Other expenses consists of the following:

	Three Months ended			Six Months ended
(Dollars in thousands)	June 30, 2018		June 30, 2017	June 30, 2018	June 30, 2017
Mergers and acquisition expenses	$	2,926	866	4,762	949
Consulting and outside services	1,795		984	3,174	2,404
Debit card expenses	1,148		1,794	2,788	3,512
Telephone	1,142		934	2,163	1,911
Employee expenses	1,142		1,125	1,933	1,914
Loan expenses	984		722	1,788	1,613
Postage	776		636	1,555	1,361
Printing and supplies	792		668	1,483	1,308
VIE amortization and other expenses	938		948	1,412	1,412
Business development	642		453	1,110	793
Accounting and audit fees	393		519	811	1,009
Legal fees	467		227	781	506
ATM expenses	345		382	634	694
Checking and operating expenses	354		362	467	727
Other	1,207		885	2,351	1,812
Total other expenses	$	15,051	11,505	27,212	21,925

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Accumulated Other Comprehensive Loss

6 Months Ended

Jun. 30, 2018

Equity [Abstract]

Accumulated Other Comprehensive Loss

Accumulated Other Comprehensive Loss

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

(Dollars in thousands)	Gains (Losses) on Available-For-Sale Debt Securities			Losses on Derivatives Used for Cash Flow Hedges		Total
Balance at December 31, 2016	$	1,639		(9,021	)	(7,382	)
Other comprehensive income (loss) before reclassifications	12,256			(1,129	)	11,127
Reclassification adjustments for losses included in net income	365			1,589		1,954
Net current period other comprehensive income	12,621			460		13,081
Balance at June 30, 2017	$	14,260		(8,561	)	5,699
Balance at December 31, 2017	$	5,031		(7,010	)	(1,979	)
Other comprehensive (loss) income before reclassifications	(24,195		)	4,530		(19,665	)
Reclassification adjustments for losses included in net income	259			1,103		1,362
Net current period other comprehensive (loss) income	(23,936		)	5,633		(18,303	)
Balance at June 30, 2018	$	(18,905	)	(1,377	)	(20,282	)

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Earnings Per Share

6 Months Ended

Jun. 30, 2018

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 restricted stock awards were vested and stock options were exercised, using the treasury stock method.

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

	Three Months ended			Six Months ended
(Dollars in thousands, except per share data)	June 30, 2018		June 30, 2017	June 30, 2018	June 30, 2017
Net income available to common stockholders, basic and diluted	$	44,384	33,687	82,943	64,942
Average outstanding shares - basic	84,514,257		77,546,236	82,671,816	77,061,867
Add: dilutive restricted stock awards and stock options	45,011		46,089	62,591	63,810
Average outstanding shares - diluted	84,559,268		77,592,325	82,734,407	77,125,677
Basic earnings per share	$	0.53	0.43	1.00	0.84
Diluted earnings per share	$	0.52	0.43	1.00	0.84

There were no restricted stock awards or stock options excluded from the diluted average outstanding share calculation for the six months ended June 30, 2018 and 2017, respectively. Anti-dilution occurs when the unrecognized compensation cost per share of a restricted stock award or the exercise price of a stock option exceeds the market price of the Company’s stock.

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Fair Value of Assets and Liabilities

6 Months Ended

Jun. 30, 2018

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 six month periods ended June 30, 2018 and 2017.

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 June 30, 2018.

Debt securities, available-for-sale: fair value for available-for-sale debt 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 debt 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 debt 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.

Loans held for sale, at fair value: loans held for sale measured at fair value, for which an active secondary market and readily available market prices exist, are initially valued at the transaction price and are subsequently valued by using quoted prices for similar assets, adjusted for specific attributes of that loan or other observable market data, such as outstanding commitments from third party investors. Loans held for sale measured at fair value are classified within Level 2. Included in gain on sale of loans were net losses of $(21,000) and $0 for the six month periods ended June 30, 2018 and 2017, respectively, from the changes in fair value of these loans held for sale measured at fair value. Electing to measure loans held for sale at fair value reduces certain timing differences and better matches changes in fair value of these assets with changes in the value of the derivative instruments used to economically hedge them without the burden of complying with the requirements for hedge accounting.

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.

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 June 30, 2018		Quoted Prices in Active  Markets for Identical Assets (Level 1)	Significant Other Observable Inputs (Level 2)	Significant Unobservable Inputs (Level 3)
Debt securities, available-for-sale
U.S. government and federal agency	$	28,093	—	28,093	—
U.S. government sponsored enterprises	119,360		—	119,360	—
State and local governments	653,918		—	653,918	—
Corporate bonds	318,422		—	318,422	—
Residential mortgage-backed securities	886,348		—	886,348	—
Commercial mortgage-backed securities	171,211		—	171,211	—
Loans held for sale, at fair value	53,788		—	53,788	—
Total assets measured at fair value on a recurring basis	$	2,231,140	—	2,231,140	—
Interest rate swaps	$	1,844	—	1,844	—
Total liabilities measured at fair value on a recurring basis	$	1,844	—	1,844	—

			Fair Value Measurements At the End of the Reporting Period Using
(Dollars in thousands)	Fair Value December 31, 2017		Quoted Prices in Active  Markets for Identical Assets (Level 1)	Significant Other Observable Inputs (Level 2)	Significant Unobservable Inputs (Level 3)
Debt securities, available-for-sale
U.S. government and federal agency	$	31,127	—	31,127	—
U.S. government sponsored enterprises	19,091		—	19,091	—
State and local governments	629,501		—	629,501	—
Corporate bonds	216,762		—	216,762	—
Residential mortgage-backed securities	779,283		—	779,283	—
Commercial mortgage-backed securities	102,479		—	102,479	—
Loans held for sale, at fair value	38,833		—	38,833	—
Total assets measured at fair value on a recurring basis	$	1,817,076	—	1,817,076	—
Interest rate swaps	$	9,389	—	9,389	—
Total liabilities measured at fair value on a recurring basis	$	9,389	—	9,389	—

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 June 30, 2018.

Other real estate owned: OREO is initially recorded at fair value less estimated cost to sell, establishing a new cost basis. OREO is subsequently accounted for at lower of cost or 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.

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 department reviews 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 June 30, 2018		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	$	735	—	—	735
Collateral-dependent impaired loans, net of ALLL	4,302		—	—	4,302
Total assets measured at fair value on a non-recurring basis	$	5,037	—	—	5,037

			Fair Value Measurements At the End of the Reporting Period Using
(Dollars in thousands)	Fair Value December 31, 2017		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	$	2,296	—	—	2,296
Collateral-dependent impaired loans, net of ALLL	6,339		—	—	6,339
Total assets measured at fair value on a non-recurring basis	$	8,635	—	—	8,635

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 June 30, 2018		Quantitative Information about Level 3 Fair Value Measurements
(Dollars in thousands)			Valuation Technique	Unobservable Input	Range (Weighted-Average) 1
Other real estate owned	$	735	Sales comparison approach	Selling costs	8.0% - 15.0% (9.3%)
Collateral-dependent impaired loans, net of ALLL	$	13	Cost approach	Selling costs	20.0% - 20.0% (20.0%)
	4,289		Sales comparison approach	Selling costs	8.0% - 20.0% (10.3%)
	$	4,302

	Fair Value December 31, 2017		Quantitative Information about Level 3 Fair Value Measurements
(Dollars in thousands)			Valuation Technique	Unobservable Input	Range (Weighted-Average) 1
Other real estate owned	$	2,296	Sales comparison approach	Selling costs	0.0% - 10.0% (6.0%)
Collateral-dependent impaired loans, net of ALLL	$	238	Cost approach	Selling costs	10.0% - 20.0% (10.6%)
	2,541		Sales comparison approach	Selling costs	8.0% - 10.0% (9.4%)
	3,560		Combined approach	Selling costs	10.0% - 10.0% (10.0%)
	$	6,339

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

Fair Value 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 not carried at fair value. Receivables and payables due in one year or less, equity securities without readily determinable fair values and deposits with no defined or contractual maturities are excluded.

			Fair Value Measurements At the End of the Reporting Period Using
(Dollars in thousands)	Carrying Amount June 30, 2018		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	$	368,132	368,132	—	—
Debt securities, held-to-maturity	620,409		—	618,509	—
Loans receivable, net of ALLL	7,817,108		—	—	7,814,402
Total financial assets	$	8,805,649	368,132	618,509	7,814,402
Financial liabilities
Term deposits	$	1,100,158	—	1,101,821	—
FHLB advances	395,037		—	395,132	—
Repurchase agreements and other borrowed funds	371,432		—	371,435	—
Subordinated debentures	134,058		—	121,325	—
Total financial liabilities	$	2,000,685	—	1,989,713	—

			Fair Value Measurements At the End of the Reporting Period Using
(Dollars in thousands)	Carrying Amount December 31, 2017		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	$	200,004	200,004	—	—
Debt securities, held-to-maturity	648,313		—	660,086	—
Loans receivable, net of ALLL	6,448,256		—	6,219,515	114,771
Total financial assets	$	7,296,573	200,004	6,879,601	114,771
Financial liabilities
Term deposits	$	977,302	—	978,803	—
FHLB advances	353,995		—	352,886	—
Repurchase agreements and other borrowed funds	370,797		—	370,797	—
Subordinated debentures	126,135		—	98,023	—
Total financial liabilities	$	1,828,229	—	1,800,509	—

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Mergers and Acquisitions

6 Months Ended

Jun. 30, 2018

Business Combinations [Abstract]

Mergers and Acquisitions

Mergers and Acquisitions

On February 28, 2018, the Company acquired 100 percent of the outstanding common stock of Inter-Mountain Bancorp., Inc. and its wholly-owned subsidiary, First Security Bank, a community bank based in Bozeman, Montana. FSB provides banking services to individuals and businesses throughout Montana with banking offices located in Bozeman, Belgrade, Big Sky, Choteau, Fairfield, Fort Benton, Three Forks, Vaughn and West Yellowstone. The acquisition expands the Company’s presence in the Bozeman and Golden Triangle markets in Montana and further diversifies the Company’s loan, customer and deposit base. FSB merged into the Bank and became a new bank division headquartered in Bozeman and the Bank’s existing Bozeman-based division, Big Sky Western Bank, combined with the new FSB division. The agriculture-focused northern branches of FSB combined with the Bank’s First Bank of Montana division. The preliminary value of the FSB acquisition was $181,043,000 and resulted in the Company issuing 4,654,091 shares of its common stock. 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, 2018 acquisition date. The excess of the preliminary 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 FSB. None of the goodwill is deductible for income tax purposes as the acquisition was accounted for as a tax-free exchange.

On January 31, 2018, the Company acquired 100 percent of the outstanding common stock of Columbine Capital Corp. and its wholly-owned subsidiary, Collegiate Peaks Bank, a community bank based in Buena Vista, Colorado. Collegiate provides banking services to businesses and individuals in the Mountain and Front Range communities of Colorado, with banking offices located in Aurora, Buena Vista, Denver and Salida. The acquisition expands the Company’s presence in Colorado to the mountains and along the Front Range and further diversifies the Company’s loan, customer and deposit base. Collegiate merged into the Bank and operates as a separate Bank division under its existing name and management team. The preliminary value of the Collegiate acquisition was $96,083,000 and resulted in the Company issuing 1,778,777 shares of its common stock and paying $16,265,000 in cash in exchange for all of Collegiate’s outstanding common stock shares and $10,054,000 due to an effective settlement of pre-existing receivable from Columbine Capital Corp. 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 January 31, 2018 acquisition date. The excess of the preliminary 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 Collegiate. None of the goodwill is deductible for income tax purposes as the acquisition was accounted for as a tax-free exchange.

The assets and liabilities of FSB and Collegiate were recorded on the Company’s consolidated statements of financial condition at their preliminary estimated fair values as of the February 28, 2018 and January 31, 2018 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 preliminary fair value estimates of the consideration transferred, the total identifiable net assets acquired and the resulting goodwill arising from the FSB and Collegiate acquisitions. The Company is continuing to obtain information to determine the fair values of the acquired assets and liabilities.

	FSB		Collegiate
(Dollars in thousands)	February 28, 2018		January 31, 2018
Fair value of consideration transferred
Fair value of Company shares issued, net of equity issuance costs	$	181,043	69,764
Cash consideration for outstanding shares	—		16,265
Effective settlement of a pre-existing relationship	—		10,054
Total fair value of consideration transferred	181,043		96,083
Recognized amounts of identifiable assets acquired and liabilities assumed
Identifiable assets acquired
Cash and cash equivalents	24,397		93,136
Debt securities	271,865		42,177
Loans receivable	627,767		354,252
Core deposit intangible 1	31,053		10,275
Accrued income and other assets	78,325		15,911
Total identifiable assets acquired	1,033,407		515,751
Liabilities assumed
Deposits	877,586		437,171
Borrowings 2	36,880		12,509
Accrued expenses and other liabilities	14,175		5,435
Total liabilities assumed	928,641		455,115
Total identifiable net assets	104,766		60,636
Goodwill recognized	$	76,277	35,447

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¹ The core deposit intangible for each acquisition was determined to have an estimated life of 10 years.

² Borrowings assumed with the FSB acquisition include Tier 2 subordinated debentures of $7,903,000.

The preliminary fair values of the FSB and Collegiate assets acquired include loans with preliminary fair values of $627,767,000 and $354,252,000, respectively. The gross principal and contractual interest due under the FSB and Collegiate contracts was $632,370,000 and $355,364,000, respectively. The Company evaluated the principal and contractual interest due at each of the acquisition dates and determined that insignificant amounts were not expected to be collectible.

The Company incurred $3,850,000 and $828,000 of expenses in connection with the FSB and Collegiate acquisitions, respectively, during the six months ended June 30, 2018. Mergers and acquisition expenses are included in other expense in the Company's consolidated statements of operations and consist of third-party costs, conversion costs and employee retention and severance expenses.

Total income consisting of net interest income and non-interest income of the acquired operations of FSB was approximately $17,044,000 and net income was approximately $3,637,000 from February 28, 2018 to June 30, 2018. Total income consisting of net interest income and non-interest income of the acquired operations of Collegiate was approximately $10,218,000 and net income was approximately $2,681,000 from January 31, 2018 to June 30, 2018.

The following unaudited pro forma summary presents consolidated information of the Company as if the FSB and Collegiate acquisitions had occurred on January 1, 2017:

	Three Months ended			Six Months ended
(Dollars in thousands)	June 30, 2018		June 30, 2017	June 30, 2018	June 30, 2017
Net interest income and non-interest income	$	140,382	129,461	270,450	250,107
Net income	44,384		39,094	78,332	74,551

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Nature of Operations and Summary of Significant Accounting Policies (Policies)

6 Months Ended

Jun. 30, 2018

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, Utah, Washington, Wyoming, Colorado and Arizona through its wholly-owned bank subsidiary, Glacier Bank (“Bank”). The Company offers a wide range of banking products and services, including: 1) retail banking; 2) business banking; 3) real estate, commercial, agriculture and consumer loans; and 4) mortgage origination services. The Company serves individuals, small to medium-sized businesses, community organizations and public entities.

In the opinion of management, the accompanying unaudited condensed consolidated financial statements contain all adjustments (consisting of normal recurring adjustments) necessary for a fair presentation of the Company’s financial condition as of June 30, 2018, the results of operations and comprehensive income for the three and six month periods ended June 30, 2018 and 2017, and changes in stockholders’ equity and cash flows for the six month periods ended June 30, 2018 and 2017. The condensed consolidated statement of financial condition of the Company as of December 31, 2017 has been derived from the audited consolidated statements of the Company as of that date.

The accompanying unaudited condensed consolidated financial statements do not include all of the information and footnotes required by accounting principles generally accepted in the United States of America (“GAAP”) for complete financial statements. These unaudited condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and notes thereto contained in the Company’s Annual Report on Form 10-K for the year ended December 31, 2017. Operating results for the six months ended June 30, 2018 are not necessarily indicative of the results anticipated for the year ending December 31, 2018.

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.

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 debt 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 and the Bank. The Bank consists of fourteen bank divisions, a treasury division, an information technology division and a centralized mortgage division. The treasury division includes the Bank’s investment portfolio and wholesale borrowings, the information technology division includes the Bank’s internal data processing, and the centralized mortgage division includes mortgage loan servicing and secondary market sales. The Bank divisions operate under separate names, management teams and advisory 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 (“CEO”) (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.

The Bank has subsidiary interests in variable interest entities (“VIE”) for which the Bank has both the power to direct the VIE’s significant activities and the obligation to absorb losses or right to receive benefits of the VIE that could potentially be significant to the VIE. These subsidiary interests are included in the Company’s consolidated financial statements. The Bank also has subsidiary interests in VIEs for which the Bank does not have a controlling financial interest and is not the primary beneficiary. These subsidiary interests are not included in the Company’s consolidated financial statements.

The parent holding company owns non-bank subsidiaries that have issued trust preferred securities as Tier 1 capital instruments. The trust subsidiaries are not included in the Company’s consolidated financial statements. The Company's investments in the trust subsidiaries are included in other assets on the Company's statements of financial condition.

In February 2018, the Company completed its acquisition of Inter-Mountain Bancorp., Inc. and its wholly-owned subsidiary, First Security Bank, a community bank based in Bozeman, Montana (collectively, “FSB”). In January 2018, the Company completed its acquisition of Columbine Capital Corp., and its wholly-owned subsidiary, Collegiate Peaks Bank, a community bank based in Buena Vista, Colorado (collectively, “Collegiate”). 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. For additional information relating to recent mergers and acquisitions, see Note 12.

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. 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.

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 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.

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 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 and overdraft 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 other real estate owned (“OREO”) until such time as it is sold.

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.

Revenue Recognition

Revenue Recognition

The Company recognizes revenue when services or products are transferred to customers in an amount that reflects the consideration to which the Company expects to be entitled. The Company’s principal source of revenue is interest income from debt securities and loans. Revenue from contracts with customers within the scope of Accounting Standards Codification^™ (“ASC”) Topic 606 was $36,553,000 and $34,234,000 for the six months ended June 30, 2018 and 2017, respectively, and largely consisted of revenue from service charges and other fees from deposits (e.g., overdraft fees, ATM fees, debit card fees). Due to the short-term nature of the Company’s contracts with customers, an insignificant amount of receivables related to such revenue was recorded at June 30, 2018 and December 31, 2017 and there were no impairment losses recognized. Policies specific to revenue from contracts with customers include the following:

Service Charges. Revenue from service charges consists of service charges and fees on deposit accounts under depository agreements with customers to provide access to deposited funds and, when applicable, pay interest on deposits. Service charges on deposit accounts may be transactional or non-transactional in nature. Transactional service charges occur in the form of a service or penalty and are charged upon the occurrence of an event (e.g., overdraft fees, ATM fees, wire transfer fees). Transactional service charges are recognized as services are delivered to and consumed by the customer, or as penalty fees are charged. Non-transactional service charges are charges that are based on a broader service, such as account maintenance fees and dormancy fees, and are recognized on a monthly basis.

Debit Card Fees. Revenue from debit card fees includes interchange fee income from debit cards processed through card association networks. Interchange fees represent a portion of a transaction amount that the Company and other involved parties retain to compensate themselves for giving the cardholder immediate access to funds. Interchange rates are generally set by the card association networks and are based on purchase volumes and other factors. The Company records interchange fees as services are provided.

Accounting Guidance Adopted in 2018 and Pending Adoption at June 30, 2018

Accounting Guidance Adopted in 2018

The 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 accounting standards that may have had a material effect on the Company’s financial position or results of operations.

Financial Instruments. In January 2016, FASB amended ASC Topic 825 to address certain aspects of recognition, measurement, presentation, and disclosure of financial instruments. The amendments were effective for public business entities for the first interim and annual reporting periods beginning after December 15, 2017. Amendments were to be applied by means of a cumulative-effect adjustment to the Company’s statements of financial condition as of the beginning of the reporting year of adoption. The amendments impacted the Company as follows: 1) equity investments (with certain exclusions) are to be measured at fair value with the changes recognized in net income; 2) an exit price must be utilized when measuring the fair value of financial instruments; and 3) additional disclosures are required relating to other comprehensive income (“OCI”), the evaluation of a valuation allowance on a deferred tax asset related to available-for-sale debt securities in combination with the entity’s other deferred tax assets, and other disclosures. The Company adopted the amendments effective January 1, 2018 and determined that the impact of these amendments did not have a significant impact on the Company’s equity securities, fair value disclosures, financial position or results of operations. The amendments changed the method utilized to disclose the fair value of the loan portfolio to an exit price notion when measuring fair value. The Company developed processes to comply with the disclosure requirements of such amendments and accounting policies and procedures were updated accordingly. For additional information on fair value of assets and liabilities, see Note 11.

Revenue Recognition. In May 2014, FASB amended ASC Topic 606 to clarify the principles for recognizing revenue and develop a common revenue standard among industries. The new guidance established the following core principle: 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 were provided for a company or organization to follow to achieve such core principle. The new guidance also included a cohesive set of disclosure requirements that provided 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 Company adopted the new revenue recognition guidance effective January 1, 2018 and determined the majority of the Company’s revenue sources, such as interest income from debt securities and loans, fee income from loans and gain on sale of loans, were not within the scope of Topic 606. The Company evaluated the revenue sources determined to be in scope of Topic 606, including service charges and fee income on deposits and gain or loss on sale of OREO and determined the adoption of the guidance did not have a significant impact to the Company’s financial position or results of operations; however, OREO policies and procedures were updated and implemented and new disclosures about the Company’s revenue have been incorporated into the notes to the financial statements.

Accounting Guidance Pending Adoption at June 30, 2018

The following paragraphs provide descriptions of newly issued but not yet effective accounting standards that could have a material effect on the Company’s financial position or results of operations.

Derivatives and Hedging. In August 2017, FASB amended ASC Topic 815 to improve the financial reporting of hedging relationships to better portray the economic results of an entity’s risk management activities in its financial statements. In addition, the amendments made targeted improvements to simplify the application of the hedge accounting guidance. The amendments are effective for public business entities for the first interim and annual reporting periods beginning after December 15, 2018 and early adoption is permitted. The Company is currently evaluating the full impact of the amendments on its existing interest rate swaps and whether it will early adopt. The Company does not expect there to be an impact to the Company’s financial position and results of operations, although, there may be additional financial statement disclosures. The accounting policies and procedures will be modified after the Company has fully evaluated the standard, although significant changes are not expected. For additional information on derivatives, see Note 7.

Receivables - Nonrefundable Fees and Other Costs. In March 2017, FASB amended ASC Subtopic 310-20 to shorten the amortization period for certain callable debt securities held at a premium. Specifically, the amendments require the premium to be amortized to the earliest call date instead of the maturity date. The amendments do not require an accounting change for securities held at a discount; the discount continues to be amortized to maturity. The amendments are effective for public business entities for the first interim and annual reporting periods beginning after December 15, 2018. Early adoption is permitted and if adopted in an interim period, any adjustments should be reflected as of the beginning of the year that includes the interim period. The entity should apply the amendments on a modified retrospective basis through a cumulative-effective adjustment directly to retained earnings as of the beginning of the period of adoption. The Company has premiums on debt securities that are currently being amortized to the maturity date, primarily in the state and local governments category. If the Company were to adopt these amendments as of July 1, 2018, the Company estimates that $21,869,000 of the premium associated with debt securities would be adjusted to retained earnings. The Company is currently reviewing the amendments to ensure it is fully compliant by the adoption date, including accounting policies and procedures, and doesn’t expect to early adopt.

Goodwill and Other Intangibles. In January 2017, FASB amended ASC Topic 350 to simplify the measurement of goodwill by eliminating Step 2 from the goodwill impairment test. Instead, under these amendments, an entity should perform its annual, or interim, goodwill impairment test by comparing the fair value of a reporting unit with its carrying amount. An entity should recognize an impairment charge for the amount by which the carrying amount exceeds the reporting unit’s fair value; however, the loss should not exceed the total amount of goodwill allocated to that reporting unit. The amendments are effective for public business entities for the first interim and annual reporting periods beginning after December 15, 2019. Early adoption is permitted for interim or annual goodwill impairment tests performed on testing dates after January 1, 2017. The Company has goodwill from prior business combinations and performs an annual impairment test or more frequently if changes or circumstances occur that would more-likely-than-not reduce the fair value of the reporting unit below its carrying value. During the third quarter of 2017, the Company performed its impairment assessment and determined the fair value of the aggregated reporting units exceed the carrying value, such that the Company’s goodwill was not considered impaired. Although the Company cannot anticipate future goodwill impairment assessments, based on the most recent assessment, it is unlikely that an impairment amount would need to be calculated and, therefore, the Company does not anticipate a material impact from these amendments to the Company’s financial position and results of operations. The current accounting policies and processes are not anticipated to change, except for the elimination of the Step 2 analysis. For additional information regarding goodwill impairment testing, see Note 4.

Financial Instruments. In June 2016, FASB amended ASC Topic 326 to replace the incurred loss model with a methodology that reflects expected credit losses over the life of the loan and requires consideration of a broader range of reasonable and supportable information to calculate credit loss estimates. The amendments are effective for public business entities for the first interim and annual reporting periods beginning after December 15, 2019. The Company is currently evaluating the impact of these amendments to the Company’s financial position and results of operations and currently does not know or cannot reasonably quantify the impact of the adoption of the amendments as a result of the complexity and extensive changes from the amendments. The ALLL is a material estimate of the Company and given the change from an incurred loss model to a methodology that considers the credit loss over the life of the loan, there is the potential for an increase in the ALLL at adoption date. The Company is anticipating a significant change in the processes and procedures to calculate the ALLL, including changes in assumptions and estimates to consider expected credit losses over the life of the loan versus the current accounting practice that utilizes the incurred loss model. The Company will also develop new procedures for determining an allowance for credit losses relating to held-to-maturity debt securities. In addition, the current accounting policy and procedures for other-than-temporary impairment on available-for-sale debt securities will be replaced with an allowance approach. The Company has formed a project team and is actively reviewing the standard for developing and implementing processes and procedures to ensure it is fully compliant with the amendments at adoption date. For additional information on the ALLL, see Note 3.

Leases. In February 2016, FASB amended ASC Topic 842 to address several aspects of lease accounting with the significant change being the recognition of lease assets and lease liabilities for leases previously classified as operating leases. The amendments are effective for public business entities for the first interim and annual reporting periods beginning after December 15, 2018, and early adoption is permitted. The Company has lease agreements for which the amendments will require the recognition of a lease liability to make lease payments and a right-of-use asset which will represent its right to use the underlying asset for the lease term. The Company is currently reviewing the amendments to ensure it is fully compliant by the adoption date and doesn’t expect to early adopt. The Company does not expect the amendments to have a material effect on the Company’s financial position or results of operations since the Company does not have a significant amount of lease agreements. New processes and accounting policies will be implemented to comply with the amendments.

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Debt Securities (Tables)

6 Months Ended

Jun. 30, 2018

Investments, Debt and Equity Securities [Abstract]

Amortized cost, gross unrealized gains and losses and fair value of debt securities

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

	June 30, 2018
	Amortized Cost		Gross Unrealized			Fair Value
(Dollars in thousands)			Gains	Losses
Available-for-sale
U.S. government and federal agency	$	28,245	39	(191	)	28,093
U.S. government sponsored enterprises	120,327		—	(967	)	119,360
State and local governments	651,113		13,318	(10,513	)	653,918
Corporate bonds	319,344		666	(1,588	)	318,422
Residential mortgage-backed securities	909,306		436	(23,394	)	886,348
Commercial mortgage-backed securities	174,339		—	(3,128	)	171,211
Total available-for-sale	2,202,674		14,459	(39,781	)	2,177,352
Held-to-maturity
State and local governments	620,409		10,499	(12,399	)	618,509
Total held-to-maturity	620,409		10,499	(12,399	)	618,509
Total debt securities	$	2,823,083	24,958	(52,180	)	2,795,861

	December 31, 2017
	Amortized Cost		Gross Unrealized			Fair Value
(Dollars in thousands)			Gains	Losses
Available-for-sale
U.S. government and federal agency	$	31,216	54	(143	)	31,127
U.S. government sponsored enterprises	19,195		—	(104	)	19,091
State and local governments	614,366		20,299	(5,164	)	629,501
Corporate bonds	216,443		802	(483	)	216,762
Residential mortgage-backed securities	785,960		1,253	(7,930	)	779,283
Commercial mortgage-backed securities	104,324		25	(1,870	)	102,479
Total available-for-sale	1,771,504		22,433	(15,694	)	1,778,243
Held-to-maturity
State and local governments	648,313		20,346	(8,573	)	660,086
Total held-to-maturity	648,313		20,346	(8,573	)	660,086
Total debt securities	$	2,419,817	42,779	(24,267	)	2,438,329

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 debt securities by contractual maturity at June 30, 2018. Actual maturities may differ from expected or contractual maturities since issuers have the right to prepay obligations with or without prepayment penalties.

	June 30, 2018
	Available-for-Sale			Held-to-Maturity
(Dollars in thousands)	Amortized Cost		Fair Value	Amortized Cost	Fair Value
Due within one year	$	144,924	144,621	—	—
Due after one year through five years	356,279		354,782	3,189	3,234
Due after five years through ten years	273,195		276,734	107,480	106,764
Due after ten years	344,631		343,656	509,740	508,511
	1,119,029		1,119,793	620,409	618,509
Mortgage-backed securities 1	1,083,645		1,057,559	—	—
Total	$	2,202,674	2,177,352	620,409	618,509

______________________________

¹Mortgage-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 debt securities and the associated gains and losses

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

	Three Months ended					Six Months ended
(Dollars in thousands)	June 30, 2018			June 30, 2017		June 30, 2018		June 30, 2017
Available-for-sale
Proceeds from sales and calls of debt securities	$	4,765		104,172		233,446		112,663
Gross realized gains 1	9			3,057		15		3,067
Gross realized losses 1	(73		)	(3,514	)	(361	)	(3,663	)
Held-to-maturity
Proceeds from calls of debt securities	13,470			7,445		28,935		15,235
Gross realized gains 1	10			72		64		153
Gross realized losses 1	(2		)	(137	)	(107	)	(179	)

______________________________

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

Summary of debt securities with an unrealized loss position

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

	June 30, 2018
	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	$	11,849	(51	)	10,174	(140	)	22,023	(191	)
U.S. government sponsored enterprises	115,977		(873	)	3,383	(94	)	119,360	(967	)
State and local governments	189,904		(3,642	)	115,925	(6,871	)	305,829	(10,513	)
Corporate bonds	224,748		(1,240	)	27,202	(348	)	251,950	(1,588	)
Residential mortgage-backed securities	572,541		(13,293	)	225,798	(10,101	)	798,339	(23,394	)
Commercial mortgage-backed securities	119,796		(1,266	)	51,415	(1,862	)	171,211	(3,128	)
Total available-for-sale	$	1,234,815	(20,365	)	433,897	(19,416	)	1,668,712	(39,781	)
Held-to-maturity
State and local governments	$	167,716	(4,293	)	90,207	(8,106	)	257,923	(12,399	)
Total held-to-maturity	$	167,716	(4,293	)	90,207	(8,106	)	257,923	(12,399	)

	December 31, 2017
	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	$	1,208	(5	)	13,179	(138	)	14,387	(143	)
U.S. government sponsored enterprises	14,926		(56	)	3,425	(48	)	18,351	(104	)
State and local governments	61,126		(689	)	121,181	(4,475	)	182,307	(5,164	)
Corporate bonds	99,636		(264	)	29,034	(219	)	128,670	(483	)
Residential mortgage-backed securities	372,175		(3,050	)	254,721	(4,880	)	626,896	(7,930	)
Commercial mortgage-backed securities	37,650		(469	)	62,968	(1,401	)	100,618	(1,870	)
Total available-for-sale	$	586,721	(4,533	)	484,508	(11,161	)	1,071,229	(15,694	)
Held-to-maturity
State and local governments	$	21,207	(186	)	105,486	(8,387	)	126,693	(8,573	)
Total held-to-maturity	$	21,207	(186	)	105,486	(8,387	)	126,693	(8,573	)

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Loans Receivable, Net (Tables)

6 Months Ended

Jun. 30, 2018

Receivables [Abstract]

Summary of loans receivable

The following table presents loans receivable for each portfolio class of loans:

	At or for the Six Months ended			At or for the Year ended
(Dollars in thousands)	June 30, 2018			December 31, 2017
Residential real estate loans	$	835,382		720,728
Commercial loans
Real estate	4,384,781			3,577,139
Other commercial	1,940,435			1,579,353
Total	6,325,216			5,156,492
Consumer and other loans
Home equity	511,043			457,918
Other consumer	277,031			242,686
Total	788,074			700,604
Loans receivable	7,948,672			6,577,824
Allowance for loan and lease losses	(131,564		)	(129,568	)
Loans receivable, net	$	7,817,108		6,448,256
Net deferred origination (fees) costs included in loans receivable	$	(4,288	)	(2,643	)
Net purchase accounting (discounts) premiums included in loans receivable	$	(28,695	)	(16,325	)
Weighted-average interest rate on loans (tax-equivalent)	4.89		%	4.81	%

Summary of the activity in the ALLL

The following tables summarize the activity in the ALLL by loan class:

	Three Months ended June 30, 2018
(Dollars in thousands)	Total			Residential Real Estate		Commercial Real Estate		Other Commercial		Home Equity		Other Consumer
Balance at beginning of period	$	127,608		10,634		68,342		38,108		6,040		4,484
Provision for loan losses	4,718			258		2,774		675		8		1,003
Charge-offs	(2,604		)	(44	)	(190	)	(640	)	(7	)	(1,723	)
Recoveries	1,842			55		319		521		51		896
Balance at end of period	$	131,564		10,903		71,245		38,664		6,092		4,660

	Three Months ended June 30, 2017
(Dollars in thousands)	Total			Residential Real Estate		Commercial Real Estate		Other Commercial		Home Equity		Other Consumer
Balance at beginning of period	$	129,226		11,535		64,753		39,157		7,679		6,102
Provision for loan losses	3,013			(10	)	4,559		(1,934	)	229		169
Charge-offs	(4,589		)	(21	)	(1,146	)	(650	)	(347	)	(2,425	)
Recoveries	2,227			18		337		411		101		1,360
Balance at end of period	$	129,877		11,522		68,503		36,984		7,662		5,206

	Six Months ended June 30, 2018
(Dollars in thousands)	Total			Residential Real Estate		Commercial Real Estate		Other Commercial		Home Equity		Other Consumer
Balance at beginning of period	$	129,568		10,798		68,515		39,303		6,204		4,748
Provision for loan losses	5,513			81		3,019		672		(194	)	1,935
Charge-offs	(7,611		)	(47	)	(1,223	)	(2,428	)	(19	)	(3,894	)
Recoveries	4,094			71		934		1,117		101		1,871
Balance at end of period	$	131,564		10,903		71,245		38,664		6,092		4,660

	Six Months ended June 30, 2017
(Dollars in thousands)	Total			Residential Real Estate		Commercial Real Estate		Other Commercial		Home Equity		Other Consumer
Balance at beginning of period	$	129,572		12,436		65,773		37,823		7,572		5,968
Provision for loan losses	4,611			(936	)	4,189		(145	)	358		1,145
Charge-offs	(8,818		)	(43	)	(2,034	)	(1,481	)	(443	)	(4,817	)
Recoveries	4,512			65		575		787		175		2,910
Balance at end of period	$	129,877		11,522		68,503		36,984		7,662		5,206

Summary of ALLL and loans receivable

The following tables disclose the recorded investment in loans and the balance in the ALLL by loan class:

	June 30, 2018
(Dollars in thousands)	Total		Residential Real Estate	Commercial Real Estate	Other Commercial	Home Equity	Other Consumer
Loans receivable
Individually evaluated for impairment	$	140,427	12,426	90,896	30,785	3,589	2,731
Collectively evaluated for impairment	7,808,245		822,956	4,293,885	1,909,650	507,454	274,300
Total loans receivable	$	7,948,672	835,382	4,384,781	1,940,435	511,043	277,031
ALLL
Individually evaluated for impairment	$	2,252	216	707	957	—	372
Collectively evaluated for impairment	129,312		10,687	70,538	37,707	6,092	4,288
Total ALLL	$	131,564	10,903	71,245	38,664	6,092	4,660

	December 31, 2017
(Dollars in thousands)	Total		Residential Real Estate	Commercial Real Estate	Other Commercial	Home Equity	Other Consumer
Loans receivable
Individually evaluated for impairment	$	119,994	12,399	77,536	23,032	3,755	3,272
Collectively evaluated for impairment	6,457,830		708,329	3,499,603	1,556,321	454,163	239,414
Total loans receivable	$	6,577,824	720,728	3,577,139	1,579,353	457,918	242,686
ALLL
Individually evaluated for impairment	$	5,223	246	500	3,851	56	570
Collectively evaluated for impairment	124,345		10,552	68,015	35,452	6,148	4,178
Total ALLL	$	129,568	10,798	68,515	39,303	6,204	4,748

Summary of impaired loans

The following tables disclose information related to impaired loans by loan class:

	At or for the Three or Six Months ended June 30, 2018
(Dollars in thousands)	Total		Residential Real Estate	Commercial Real Estate	Other Commercial	Home Equity	Other Consumer
Loans with a specific valuation allowance
Recorded balance	$	16,513	2,501	10,169	2,671	—	1,172
Unpaid principal balance	16,871		2,574	10,369	2,719	—	1,209
Specific valuation allowance	2,252		216	707	957	—	372
Average balance - three months	20,343		3,064	9,378	6,537	33	1,331
Average balance - six months	19,458		3,035	7,767	7,086	84	1,486
Loans without a specific valuation allowance
Recorded balance	123,914		9,925	80,727	28,114	3,589	1,559
Unpaid principal balance	148,501		11,061	99,904	31,724	4,157	1,655
Average balance - three months	119,143		9,778	82,818	21,614	3,425	1,508
Average balance - six months	113,530		9,659	79,542	19,359	3,473	1,497
Total
Recorded balance	140,427		12,426	90,896	30,785	3,589	2,731
Unpaid principal balance	165,372		13,635	110,273	34,443	4,157	2,864
Specific valuation allowance	2,252		216	707	957	—	372
Average balance - three months	139,486		12,842	92,196	28,151	3,458	2,839
Average balance - six months	132,988		12,694	87,309	26,445	3,557	2,983

	At or for the Year ended December 31, 2017
(Dollars in thousands)	Total		Residential Real Estate	Commercial Real Estate	Other Commercial	Home Equity	Other Consumer
Loans with a specific valuation allowance
Recorded balance	$	17,689	2,978	4,545	8,183	186	1,797
Unpaid principal balance	18,400		3,046	4,573	8,378	199	2,204
Specific valuation allowance	5,223		246	500	3,851	56	570
Average balance	18,986		2,928	5,851	8,477	359	1,371
Loans without a specific valuation allowance
Recorded balance	102,305		9,421	72,991	14,849	3,569	1,475
Unpaid principal balance	122,833		10,380	89,839	16,931	4,098	1,585
Average balance	107,945		9,834	76,427	15,129	4,734	1,821
Total
Recorded balance	119,994		12,399	77,536	23,032	3,755	3,272
Unpaid principal balance	141,233		13,426	94,412	25,309	4,297	3,789
Specific valuation allowance	5,223		246	500	3,851	56	570
Average balance	126,931		12,762	82,278	23,606	5,093	3,192

Loan portfolio aging analysis

The following tables present an aging analysis of the recorded investment in loans by loan class:

	June 30, 2018
(Dollars in thousands)	Total		Residential Real Estate	Commercial Real Estate	Other Commercial	Home Equity	Other Consumer
Accruing loans 30-59 days past due	$	24,813	1,017	13,424	5,908	2,617	1,847
Accruing loans 60-89 days past due	14,837		3,595	4,603	5,079	800	760
Accruing loans 90 days or more past due	12,751		1,050	5,958	5,242	311	190
Non-accrual loans	58,170		6,851	34,643	13,495	2,748	433
Total past due and non-accrual loans	110,571		12,513	58,628	29,724	6,476	3,230
Current loans receivable	7,838,101		822,869	4,326,153	1,910,711	504,567	273,801
Total loans receivable	$	7,948,672	835,382	4,384,781	1,940,435	511,043	277,031

	December 31, 2017
(Dollars in thousands)	Total		Residential Real Estate	Commercial Real Estate	Other Commercial	Home Equity	Other Consumer
Accruing loans 30-59 days past due	$	26,375	6,252	12,546	3,634	2,142	1,801
Accruing loans 60-89 days past due	11,312		794	5,367	3,502	987	662
Accruing loans 90 days or more past due	6,077		2,366	609	2,973	—	129
Non-accrual loans	44,833		4,924	27,331	8,298	3,338	942
Total past due and non-accrual loans	88,597		14,336	45,853	18,407	6,467	3,534
Current loans receivable	6,489,227		706,392	3,531,286	1,560,946	451,451	239,152
Total loans receivable	$	6,577,824	720,728	3,577,139	1,579,353	457,918	242,686

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:

	Three Months ended June 30, 2018
(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	8		1	4	1	2	—
Pre-modification recorded balance	$	5,273	227	4,623	171	252	—
Post-modification recorded balance	$	5,159	227	4,509	171	252	—
TDRs that subsequently defaulted
Number of loans	—		—	—	—	—	—
Recorded balance	$	—	—	—	—	—	—

	Three Months ended June 30, 2017
(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	7		1	4	1	1	—
Pre-modification recorded balance	$	12,401	55	12,035	286	25	—
Post-modification recorded balance	$	9,719	55	9,353	286	25	—
TDRs that subsequently defaulted
Number of loans	—		—	—	—	—	—
Recorded balance	$	—	—	—	—	—	—

	Six Months ended June 30, 2018
(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	20		3	8	7	2	—
Pre-modification recorded balance	$	21,270	666	12,901	7,451	252	—
Post-modification recorded balance	$	21,156	666	12,787	7,451	252	—
TDRs that subsequently defaulted
Number of loans	1		1	—	—	—	—
Recorded balance	$	334	334	—	—	—	—

	Six Months ended June 30, 2017
(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	17		3	6	5	2	1
Pre-modification recorded balance	$	21,956	335	12,617	8,816	178	10
Post-modification recorded balance	$	19,274	335	9,935	8,816	178	10
TDRs that subsequently defaulted
Number of loans	1		—	—	1	—	—
Recorded balance	$	18	—	—	18	—	—

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Goodwill (Tables)

6 Months Ended

Jun. 30, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

Changes in the carrying value of goodwill

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

	Three Months ended			Six Months ended
(Dollars in thousands)	June 30, 2018		June 30, 2017	June 30, 2018	June 30, 2017
Net carrying value at beginning of period	$	289,535	147,053	177,811	147,053
Acquisitions	—		30,758	111,724	30,758
Net carrying value at end of period	$	289,535	177,811	289,535	177,811

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Variable Interest Entities (Tables)

6 Months Ended

Jun. 30, 2018

Equity Method Investments and Joint Ventures [Abstract]

Carrying amounts of consolidated 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.

(Dollars in thousands)	June 30, 2018		December 31, 2017
Assets
Loans receivable	$	64,362	57,796
Accrued interest receivable	93		94
Other assets	37,164		15,885
Total assets	$	101,619	73,775
Liabilities
Other borrowed funds	$	9,696	7,964
Accrued interest payable	1		1
Other liabilities	27		98
Total liabilities	$	9,724	8,063

Amortization expense and tax credits and other tax benefits recognized for qualified affordable housing project investments

The following table summarizes the amortization expense and the amount of tax credits and other tax benefits recognized for qualified affordable housing project investments during the periods presented.

	Three Months ended			Six Months ended
(Dollars in thousands)	June 30, 2018		June 30, 2017	June 30, 2018	June 30, 2017
Amortization expense	$	1,030	640	1,921	1,143
Tax credits and other tax benefits recognized	1,423		976	2,663	1,752

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Securities Sold Under Agreements to Repurchase (Tables)

6 Months Ended

Jun. 30, 2018

Transfers and Servicing [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:

	June 30, 2018
	Remaining Contractual Maturity of the Agreements
(Dollars in thousands)	Overnight and Continuous		30 - 90 Days	Greater Than 90 Days	Total
State and local governments	$	18,544	—	21,562	40,106
Residential mortgage-backed securities	319,731		—	—	319,731
Commercial mortgage-backed securities	1,678		—	—	1,678
Total	$	339,953	—	21,562	361,515

	December 31, 2017
	Remaining Contractual Maturity of the Agreements
(Dollars in thousands)	Overnight and Continuous		30 - 90 Days	Greater Than 90 Days	Total
Residential mortgage-backed securities	$	360,751	—	—	360,751
Commercial mortgage-backed securities	1,822		—	—	1,822
Total	$	362,573	—	—	362,573

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Derivatives and Hedging Activities (Tables)

6 Months Ended

Jun. 30, 2018

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Summary of interest rate swap derivative financial instruments

As of June 30, 2018, the Company’s interest rate swap derivative financial instruments were designated as cash flow hedges and are summarized 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 OCI and the Company’s statements of operations relating to the interest rate swap derivative financial instruments:

	Three Months ended					Six Months ended
(Dollars in thousands)	June 30, 2018			June 30, 2017		June 30, 2018		June 30, 2017
Interest rate swaps
Amount of gain (loss) recognized in OCI (effective portion)	$	1,689		(2,108	)	6,068		(1,844	)
Amount of loss reclassified from OCI to interest expense	(577		)	(1,262	)	(1,477	)	(2,594	)
Amount of loss recognized in other non-interest expense (ineffective portion)	—			—		—		—

Offsetting assets

The following table discloses the offsetting of financial assets and interest rate swap derivative assets.

	June 30, 2018					December 31, 2017
(Dollars in thousands)	Gross Amount of Recognized Assets		Gross Amount Offset in the Statements of Financial Position		Net Amounts of Assets Presented in the Statements of Financial Position	Gross Amount of Recognized Assets	Gross Amount Offset in the Statements of Financial Position	Net Amounts of Assets Presented in the Statements of Financial Position
Interest rate swaps	$	1,386	(1,386	)	—	—	—	—

Offsetting liabilities

The following table discloses the offsetting of financial liabilities and interest rate swap derivative liabilities.

	June 30, 2018					December 31, 2017
(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	$	3,230	(1,386	)	1,844	9,389	—	9,389

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Other Expenses (Tables)

6 Months Ended

Jun. 30, 2018

Other Expenses [Abstract]

Schedule of Other Expenses

Other expenses consists of the following:

	Three Months ended			Six Months ended
(Dollars in thousands)	June 30, 2018		June 30, 2017	June 30, 2018	June 30, 2017
Mergers and acquisition expenses	$	2,926	866	4,762	949
Consulting and outside services	1,795		984	3,174	2,404
Debit card expenses	1,148		1,794	2,788	3,512
Telephone	1,142		934	2,163	1,911
Employee expenses	1,142		1,125	1,933	1,914
Loan expenses	984		722	1,788	1,613
Postage	776		636	1,555	1,361
Printing and supplies	792		668	1,483	1,308
VIE amortization and other expenses	938		948	1,412	1,412
Business development	642		453	1,110	793
Accounting and audit fees	393		519	811	1,009
Legal fees	467		227	781	506
ATM expenses	345		382	634	694
Checking and operating expenses	354		362	467	727
Other	1,207		885	2,351	1,812
Total other expenses	$	15,051	11,505	27,212	21,925

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Accumulated Other Comprehensive Loss (Tables)

6 Months Ended

Jun. 30, 2018

Equity [Abstract]

Activity within Accumulated Other Comprehensive Loss, Net of Tax

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

(Dollars in thousands)	Gains (Losses) on Available-For-Sale Debt Securities			Losses on Derivatives Used for Cash Flow Hedges		Total
Balance at December 31, 2016	$	1,639		(9,021	)	(7,382	)
Other comprehensive income (loss) before reclassifications	12,256			(1,129	)	11,127
Reclassification adjustments for losses included in net income	365			1,589		1,954
Net current period other comprehensive income	12,621			460		13,081
Balance at June 30, 2017	$	14,260		(8,561	)	5,699
Balance at December 31, 2017	$	5,031		(7,010	)	(1,979	)
Other comprehensive (loss) income before reclassifications	(24,195		)	4,530		(19,665	)
Reclassification adjustments for losses included in net income	259			1,103		1,362
Net current period other comprehensive (loss) income	(23,936		)	5,633		(18,303	)
Balance at June 30, 2018	$	(18,905	)	(1,377	)	(20,282	)

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Earnings Per Share (Tables)

6 Months Ended

Jun. 30, 2018

Earnings Per Share [Abstract]

Basic and diluted earnings per share

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

	Three Months ended			Six Months ended
(Dollars in thousands, except per share data)	June 30, 2018		June 30, 2017	June 30, 2018	June 30, 2017
Net income available to common stockholders, basic and diluted	$	44,384	33,687	82,943	64,942
Average outstanding shares - basic	84,514,257		77,546,236	82,671,816	77,061,867
Add: dilutive restricted stock awards and stock options	45,011		46,089	62,591	63,810
Average outstanding shares - diluted	84,559,268		77,592,325	82,734,407	77,125,677
Basic earnings per share	$	0.53	0.43	1.00	0.84
Diluted earnings per share	$	0.52	0.43	1.00	0.84

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Fair Value of Assets and Liabilities (Tables)

6 Months Ended

Jun. 30, 2018

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 June 30, 2018		Quoted Prices in Active  Markets for Identical Assets (Level 1)	Significant Other Observable Inputs (Level 2)	Significant Unobservable Inputs (Level 3)
Debt securities, available-for-sale
U.S. government and federal agency	$	28,093	—	28,093	—
U.S. government sponsored enterprises	119,360		—	119,360	—
State and local governments	653,918		—	653,918	—
Corporate bonds	318,422		—	318,422	—
Residential mortgage-backed securities	886,348		—	886,348	—
Commercial mortgage-backed securities	171,211		—	171,211	—
Loans held for sale, at fair value	53,788		—	53,788	—
Total assets measured at fair value on a recurring basis	$	2,231,140	—	2,231,140	—
Interest rate swaps	$	1,844	—	1,844	—
Total liabilities measured at fair value on a recurring basis	$	1,844	—	1,844	—

			Fair Value Measurements At the End of the Reporting Period Using
(Dollars in thousands)	Fair Value December 31, 2017		Quoted Prices in Active  Markets for Identical Assets (Level 1)	Significant Other Observable Inputs (Level 2)	Significant Unobservable Inputs (Level 3)
Debt securities, available-for-sale
U.S. government and federal agency	$	31,127	—	31,127	—
U.S. government sponsored enterprises	19,091		—	19,091	—
State and local governments	629,501		—	629,501	—
Corporate bonds	216,762		—	216,762	—
Residential mortgage-backed securities	779,283		—	779,283	—
Commercial mortgage-backed securities	102,479		—	102,479	—
Loans held for sale, at fair value	38,833		—	38,833	—
Total assets measured at fair value on a recurring basis	$	1,817,076	—	1,817,076	—
Interest rate swaps	$	9,389	—	9,389	—
Total liabilities measured at fair value on a recurring basis	$	9,389	—	9,389	—

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 June 30, 2018		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	$	735	—	—	735
Collateral-dependent impaired loans, net of ALLL	4,302		—	—	4,302
Total assets measured at fair value on a non-recurring basis	$	5,037	—	—	5,037

			Fair Value Measurements At the End of the Reporting Period Using
(Dollars in thousands)	Fair Value December 31, 2017		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	$	2,296	—	—	2,296
Collateral-dependent impaired loans, net of ALLL	6,339		—	—	6,339
Total assets measured at fair value on a non-recurring basis	$	8,635	—	—	8,635

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 June 30, 2018		Quantitative Information about Level 3 Fair Value Measurements
(Dollars in thousands)			Valuation Technique	Unobservable Input	Range (Weighted-Average) 1
Other real estate owned	$	735	Sales comparison approach	Selling costs	8.0% - 15.0% (9.3%)
Collateral-dependent impaired loans, net of ALLL	$	13	Cost approach	Selling costs	20.0% - 20.0% (20.0%)
	4,289		Sales comparison approach	Selling costs	8.0% - 20.0% (10.3%)
	$	4,302

	Fair Value December 31, 2017		Quantitative Information about Level 3 Fair Value Measurements
(Dollars in thousands)			Valuation Technique	Unobservable Input	Range (Weighted-Average) 1
Other real estate owned	$	2,296	Sales comparison approach	Selling costs	0.0% - 10.0% (6.0%)
Collateral-dependent impaired loans, net of ALLL	$	238	Cost approach	Selling costs	10.0% - 20.0% (10.6%)
	2,541		Sales comparison approach	Selling costs	8.0% - 10.0% (9.4%)
	3,560		Combined approach	Selling costs	10.0% - 10.0% (10.0%)
	$	6,339

______________________________

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 not carried at fair value. Receivables and payables due in one year or less, equity securities without readily determinable fair values and deposits with no defined or contractual maturities are excluded.

			Fair Value Measurements At the End of the Reporting Period Using
(Dollars in thousands)	Carrying Amount June 30, 2018		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	$	368,132	368,132	—	—
Debt securities, held-to-maturity	620,409		—	618,509	—
Loans receivable, net of ALLL	7,817,108		—	—	7,814,402
Total financial assets	$	8,805,649	368,132	618,509	7,814,402
Financial liabilities
Term deposits	$	1,100,158	—	1,101,821	—
FHLB advances	395,037		—	395,132	—
Repurchase agreements and other borrowed funds	371,432		—	371,435	—
Subordinated debentures	134,058		—	121,325	—
Total financial liabilities	$	2,000,685	—	1,989,713	—

			Fair Value Measurements At the End of the Reporting Period Using
(Dollars in thousands)	Carrying Amount December 31, 2017		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	$	200,004	200,004	—	—
Debt securities, held-to-maturity	648,313		—	660,086	—
Loans receivable, net of ALLL	6,448,256		—	6,219,515	114,771
Total financial assets	$	7,296,573	200,004	6,879,601	114,771
Financial liabilities
Term deposits	$	977,302	—	978,803	—
FHLB advances	353,995		—	352,886	—
Repurchase agreements and other borrowed funds	370,797		—	370,797	—
Subordinated debentures	126,135		—	98,023	—
Total financial liabilities	$	1,828,229	—	1,800,509	—

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Mergers and Acquisitions (Tables)

6 Months Ended

Jun. 30, 2018

Business Combinations [Abstract]

Consideration transferred, identifiable net assets acquired and resulting goodwill

The following table discloses the preliminary fair value estimates of the consideration transferred, the total identifiable net assets acquired and the resulting goodwill arising from the FSB and Collegiate acquisitions. The Company is continuing to obtain information to determine the fair values of the acquired assets and liabilities.

	FSB		Collegiate
(Dollars in thousands)	February 28, 2018		January 31, 2018
Fair value of consideration transferred
Fair value of Company shares issued, net of equity issuance costs	$	181,043	69,764
Cash consideration for outstanding shares	—		16,265
Effective settlement of a pre-existing relationship	—		10,054
Total fair value of consideration transferred	181,043		96,083
Recognized amounts of identifiable assets acquired and liabilities assumed
Identifiable assets acquired
Cash and cash equivalents	24,397		93,136
Debt securities	271,865		42,177
Loans receivable	627,767		354,252
Core deposit intangible 1	31,053		10,275
Accrued income and other assets	78,325		15,911
Total identifiable assets acquired	1,033,407		515,751
Liabilities assumed
Deposits	877,586		437,171
Borrowings 2	36,880		12,509
Accrued expenses and other liabilities	14,175		5,435
Total liabilities assumed	928,641		455,115
Total identifiable net assets	104,766		60,636
Goodwill recognized	$	76,277	35,447

______________________________

¹ The core deposit intangible for each acquisition was determined to have an estimated life of 10 years.

² Borrowings assumed with the FSB acquisition include Tier 2 subordinated debentures of $7,903,000.

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 FSB and Collegiate acquisitions had occurred on January 1, 2017:

	Three Months ended			Six Months ended
(Dollars in thousands)	June 30, 2018		June 30, 2017	June 30, 2018	June 30, 2017
Net interest income and non-interest income	$	140,382	129,461	270,450	250,107
Net income	44,384		39,094	78,332	74,551

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Nature of Operations and Summary of Significant Accounting Policies (Details Textual)	6 Months Ended
	Jun. 30, 2018 USD ($) quarter step operating_segment division	Jun. 30, 2017 USD ($)
Number of Bank Divisions | division	14
Number of Operating Segments | operating_segment	1
Minimum Period Past Due to Consider Loan as Delinquent	30 days
Minimum Period Past Due to Consider Loan as Non Accrual	90 days
Number of Quarters Used to Evaluate Historical Loss Experience | quarter	12
Revenue from Contracts with Customers	$ 36,553,000	$ 34,234,000
Number of Steps to Achieve Core Revenue Recognition Principal | step	5
Accounting Standards Update 2017-08
Effect of cumulative change on retained earnings from applying new accounting pronouncement	$ 21,869,000
Consumer and Other
Minimum Number of Days Delinquent to Charge off Loans	120 days
Minimum Range
Number of years for home equity loan origination term	10 years
Maximum Range
Number of years for home equity loan origination term	15 years

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Amortized Cost, Gross Unrealized Gains and Losses and Fair Value of Investment Securities (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Available-for-sale
Amortized Cost	$ 2,202,674	$ 1,771,504
Gross Unrealized Gains	14,459	22,433
Gross Unrealized Losses	(39,781)	(15,694)
Fair Value	2,177,352	1,778,243
Held-to-maturity
Amortized Cost	620,409	648,313
Gross Unrealized Gains	10,499	20,346
Gross Unrealized Losses	(12,399)	(8,573)
Fair Value	618,509	660,086
Total
Amortized Cost	2,823,083	2,419,817
Gross Unrealized Gains	24,958	42,779
Gross Unrealized Losses	(52,180)	(24,267)
Fair Value	2,795,861	2,438,329
U.S. government and federal agency
Available-for-sale
Amortized Cost	28,245	31,216
Gross Unrealized Gains	39	54
Gross Unrealized Losses	(191)	(143)
Fair Value	28,093	31,127
U.S. government sponsored enterprises
Available-for-sale
Amortized Cost	120,327	19,195
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(967)	(104)
Fair Value	119,360	19,091
State and local governments
Available-for-sale
Amortized Cost	651,113	614,366
Gross Unrealized Gains	13,318	20,299
Gross Unrealized Losses	(10,513)	(5,164)
Fair Value	653,918	629,501
Held-to-maturity
Amortized Cost	620,409	648,313
Gross Unrealized Gains	10,499	20,346
Gross Unrealized Losses	(12,399)	(8,573)
Fair Value	618,509	660,086
Corporate bonds
Available-for-sale
Amortized Cost	319,344	216,443
Gross Unrealized Gains	666	802
Gross Unrealized Losses	(1,588)	(483)
Fair Value	318,422	216,762
Residential mortgage-backed securities
Available-for-sale
Amortized Cost	909,306	785,960
Gross Unrealized Gains	436	1,253
Gross Unrealized Losses	(23,394)	(7,930)
Fair Value	886,348	779,283
Commercial mortgage-backed securities
Available-for-sale
Amortized Cost	174,339	104,324
Gross Unrealized Gains	0	25
Gross Unrealized Losses	(3,128)	(1,870)
Fair Value	$ 171,211	$ 102,479

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Debt Securities Maturity Schedule (Details) - USD ($) $ in Thousands		Jun. 30, 2018	Dec. 31, 2017
Available-for-Sale, Amortized Cost
Due within one year		$ 144,924
Due after one year through five years		356,279
Due after five years through ten years		273,195
Due after ten years		344,631
Total before mortgage-backed securities		1,119,029
Total		2,202,674	$ 1,771,504
Available-for-Sale, Fair Value
Due within one year		144,621
Due after one year through five years		354,782
Due after five years through ten years		276,734
Due after ten years		343,656
Total before mortgage-backed securities		1,119,793
Debt securities, available-for-sale		2,177,352	1,778,243
Held-to-Maturity, Amortized Cost
Due within one year		0
Due after one year through five years		3,189
Due after five years through ten years		107,480
Due after ten years		509,740
Total before mortgage-backed securities		620,409
Amortized Cost		620,409	648,313
Held-to-Maturity, Fair Value
Due within one year		0
Due after one year through five years		3,234
Due after five years through ten years		106,764
Due after ten years		508,511
Total before mortgage-backed securities		618,509
Total		618,509	$ 660,086
Mortgage-backed securities
Available-for-Sale, Amortized Cost
Mortgage-backed securities	[1]	1,083,645
Available-for-Sale, Fair Value
Mortgage-backed securities	[1]	1,057,559
Held-to-Maturity, Amortized Cost
Mortgage-backed securities	[1]	0
Held-to-Maturity, Fair Value
Mortgage-backed securities	[1]	$ 0

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

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Proceeds From Sales and Calls of Debt Securities and Associates Gains or Losses (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Available-for-sale
Proceeds from sales and calls of debt securities		$ 4,765	$ 104,172	$ 233,446	$ 112,663
Gross realized gains	[1]	9	3,057	15	3,067
Gross realized losses	[1]	(73)	(3,514)	(361)	(3,663)
Held-to-maturity
Proceeds from calls of debt securities		13,470	7,445	28,935	15,235
Gross realized gains	[1]	10	72	64	153
Gross realized losses	[1]	$ (2)	$ (137)	$ (107)	$ (179)

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

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Debt Securities with an Unrealized Loss Position (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Available-for-sale, Fair Value
Less than 12 Months	$ 1,234,815	$ 586,721
12 Months or More	433,897	484,508
Total	1,668,712	1,071,229
Available-for-sale, Unrealized Loss
Less than 12 Months	(20,365)	(4,533)
12 Months or More	(19,416)	(11,161)
Total	(39,781)	(15,694)
Held-to-maturity, Fair Value
Less than 12 Months	167,716	21,207
12 Months or More	90,207	105,486
Total	257,923	126,693
Held-to-maturity, Unrealized Loss
Less than 12 Months	(4,293)	(186)
12 Months or More	(8,106)	(8,387)
Total	(12,399)	(8,573)
U.S. government and federal agency
Available-for-sale, Fair Value
Less than 12 Months	11,849	1,208
12 Months or More	10,174	13,179
Total	22,023	14,387
Available-for-sale, Unrealized Loss
Less than 12 Months	(51)	(5)
12 Months or More	(140)	(138)
Total	(191)	(143)
U.S. government sponsored enterprises
Available-for-sale, Fair Value
Less than 12 Months	115,977	14,926
12 Months or More	3,383	3,425
Total	119,360	18,351
Available-for-sale, Unrealized Loss
Less than 12 Months	(873)	(56)
12 Months or More	(94)	(48)
Total	(967)	(104)
State and local governments
Available-for-sale, Fair Value
Less than 12 Months	189,904	61,126
12 Months or More	115,925	121,181
Total	305,829	182,307
Available-for-sale, Unrealized Loss
Less than 12 Months	(3,642)	(689)
12 Months or More	(6,871)	(4,475)
Total	(10,513)	(5,164)
Held-to-maturity, Fair Value
Less than 12 Months	167,716	21,207
12 Months or More	90,207	105,486
Total	257,923	126,693
Held-to-maturity, Unrealized Loss
Less than 12 Months	(4,293)	(186)
12 Months or More	(8,106)	(8,387)
Total	(12,399)	(8,573)
Corporate bonds
Available-for-sale, Fair Value
Less than 12 Months	224,748	99,636
12 Months or More	27,202	29,034
Total	251,950	128,670
Available-for-sale, Unrealized Loss
Less than 12 Months	(1,240)	(264)
12 Months or More	(348)	(219)
Total	(1,588)	(483)
Residential mortgage-backed securities
Available-for-sale, Fair Value
Less than 12 Months	572,541	372,175
12 Months or More	225,798	254,721
Total	798,339	626,896
Available-for-sale, Unrealized Loss
Less than 12 Months	(13,293)	(3,050)
12 Months or More	(10,101)	(4,880)
Total	(23,394)	(7,930)
Commercial mortgage-backed securities
Available-for-sale, Fair Value
Less than 12 Months	119,796	37,650
12 Months or More	51,415	62,968
Total	171,211	100,618
Available-for-sale, Unrealized Loss
Less than 12 Months	(1,266)	(469)
12 Months or More	(1,862)	(1,401)
Total	$ (3,128)	$ (1,870)

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Debt Securities (Details Textual) - USD ($)	6 Months Ended	12 Months Ended
	Jun. 30, 2018	Dec. 31, 2017
Investments, Debt and Equity Securities [Abstract]
Other-than-temporary impairment on debt securities	$ 0	$ 0

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Loans Receivable, Net Summary of Loans Receivable (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2018	Dec. 31, 2017
Summary of Loans Receivable
Loans receivable	$ 7,948,672	$ 6,577,824
Allowance for loan and lease losses	(131,564)	(129,568)
Loans receivable, net	7,817,108	6,448,256
Net deferred origination (fees) costs included in loans receivable	(4,288)	(2,643)
Net purchase accounting (discounts) premiums included in loans receivable	$ (28,695)	$ (16,325)
Weighted-average interest rate on loans (tax-equivalent)	4.89%	4.81%
Residential Real Estate | Residential Real Estate
Summary of Loans Receivable
Loans receivable	$ 835,382	$ 720,728
Allowance for loan and lease losses	(10,903)	(10,798)
Commercial
Summary of Loans Receivable
Loans receivable	6,325,216	5,156,492
Commercial | Commercial Real Estate
Summary of Loans Receivable
Loans receivable	4,384,781	3,577,139
Allowance for loan and lease losses	(71,245)	(68,515)
Commercial | Other Commercial
Summary of Loans Receivable
Loans receivable	1,940,435	1,579,353
Allowance for loan and lease losses	(38,664)	(39,303)
Consumer and Other
Summary of Loans Receivable
Loans receivable	788,074	700,604
Consumer and Other | Home Equity
Summary of Loans Receivable
Loans receivable	511,043	457,918
Allowance for loan and lease losses	(6,092)	(6,204)
Consumer and Other | Other Consumer
Summary of Loans Receivable
Loans receivable	277,031	242,686
Allowance for loan and lease losses	$ (4,660)	$ (4,748)

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ALLL Activity (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Allowance for loan and lease losses
Balance at beginning of period	$ 127,608	$ 129,226	$ 129,568	$ 129,572
Provision for loan losses	4,718	3,013	5,513	4,611
Charge-offs	(2,604)	(4,589)	(7,611)	(8,818)
Recoveries	1,842	2,227	4,094	4,512
Balance at end of period	131,564	129,877	131,564	129,877
Residential Real Estate | Residential Real Estate
Allowance for loan and lease losses
Balance at beginning of period	10,634	11,535	10,798	12,436
Provision for loan losses	258	(10)	81	(936)
Charge-offs	(44)	(21)	(47)	(43)
Recoveries	55	18	71	65
Balance at end of period	10,903	11,522	10,903	11,522
Commercial | Commercial Real Estate
Allowance for loan and lease losses
Balance at beginning of period	68,342	64,753	68,515	65,773
Provision for loan losses	2,774	4,559	3,019	4,189
Charge-offs	(190)	(1,146)	(1,223)	(2,034)
Recoveries	319	337	934	575
Balance at end of period	71,245	68,503	71,245	68,503
Commercial | Other Commercial
Allowance for loan and lease losses
Balance at beginning of period	38,108	39,157	39,303	37,823
Provision for loan losses	675	(1,934)	672	(145)
Charge-offs	(640)	(650)	(2,428)	(1,481)
Recoveries	521	411	1,117	787
Balance at end of period	38,664	36,984	38,664	36,984
Consumer and Other | Home Equity
Allowance for loan and lease losses
Balance at beginning of period	6,040	7,679	6,204	7,572
Provision for loan losses	8	229	(194)	358
Charge-offs	(7)	(347)	(19)	(443)
Recoveries	51	101	101	175
Balance at end of period	6,092	7,662	6,092	7,662
Consumer and Other | Other Consumer
Allowance for loan and lease losses
Balance at beginning of period	4,484	6,102	4,748	5,968
Provision for loan losses	1,003	169	1,935	1,145
Charge-offs	(1,723)	(2,425)	(3,894)	(4,817)
Recoveries	896	1,360	1,871	2,910
Balance at end of period	$ 4,660	$ 5,206	$ 4,660	$ 5,206

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ALLL and Loans Receivable Summary (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Allowance for Loan and Lease Losses and Loans Receivable
Individually evaluated for impairment	$ 140,427	$ 119,994
Collectively evaluated for impairment	7,808,245	6,457,830
Total loans receivable	7,948,672	6,577,824
Individually evaluated for impairment	2,252	5,223
Collectively evaluated for impairment	129,312	124,345
Total allowance for loan and lease losses	131,564	129,568
Residential Real Estate | Residential Real Estate
Allowance for Loan and Lease Losses and Loans Receivable
Individually evaluated for impairment	12,426	12,399
Collectively evaluated for impairment	822,956	708,329
Total loans receivable	835,382	720,728
Individually evaluated for impairment	216	246
Collectively evaluated for impairment	10,687	10,552
Total allowance for loan and lease losses	10,903	10,798
Commercial
Allowance for Loan and Lease Losses and Loans Receivable
Total loans receivable	6,325,216	5,156,492
Commercial | Commercial Real Estate
Allowance for Loan and Lease Losses and Loans Receivable
Individually evaluated for impairment	90,896	77,536
Collectively evaluated for impairment	4,293,885	3,499,603
Total loans receivable	4,384,781	3,577,139
Individually evaluated for impairment	707	500
Collectively evaluated for impairment	70,538	68,015
Total allowance for loan and lease losses	71,245	68,515
Commercial | Other Commercial
Allowance for Loan and Lease Losses and Loans Receivable
Individually evaluated for impairment	30,785	23,032
Collectively evaluated for impairment	1,909,650	1,556,321
Total loans receivable	1,940,435	1,579,353
Individually evaluated for impairment	957	3,851
Collectively evaluated for impairment	37,707	35,452
Total allowance for loan and lease losses	38,664	39,303
Consumer and Other
Allowance for Loan and Lease Losses and Loans Receivable
Total loans receivable	788,074	700,604
Consumer and Other | Home Equity
Allowance for Loan and Lease Losses and Loans Receivable
Individually evaluated for impairment	3,589	3,755
Collectively evaluated for impairment	507,454	454,163
Total loans receivable	511,043	457,918
Individually evaluated for impairment	0	56
Collectively evaluated for impairment	6,092	6,148
Total allowance for loan and lease losses	6,092	6,204
Consumer and Other | Other Consumer
Allowance for Loan and Lease Losses and Loans Receivable
Individually evaluated for impairment	2,731	3,272
Collectively evaluated for impairment	274,300	239,414
Total loans receivable	277,031	242,686
Individually evaluated for impairment	372	570
Collectively evaluated for impairment	4,288	4,178
Total allowance for loan and lease losses	$ 4,660	$ 4,748

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Impaired Loans (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended	12 Months Ended
	Jun. 30, 2018	Jun. 30, 2018	Dec. 31, 2017
Summary of the impaired loans by portfolio class of loans
Loans with a specific valuation allowance, Recorded balance	$ 16,513	$ 16,513	$ 17,689
Loans with a specific valuation allowance, Unpaid principal balance	16,871	16,871	18,400
Specific valuation allowance	2,252	2,252	5,223
Loans with a specific valuation allowance, Average balance	20,343	19,458	18,986
Loans without a specific valuation allowance, Recorded balance	123,914	123,914	102,305
Loans without a specific valuation allowance, Unpaid principal balance	148,501	148,501	122,833
Loans without a specific valuation allowance, Average balance	119,143	113,530	107,945
Recorded balance	140,427	140,427	119,994
Unpaid principal balance	165,372	165,372	141,233
Average balance	139,486	132,988	126,931
Residential Real Estate | Residential Real Estate
Summary of the impaired loans by portfolio class of loans
Loans with a specific valuation allowance, Recorded balance	2,501	2,501	2,978
Loans with a specific valuation allowance, Unpaid principal balance	2,574	2,574	3,046
Specific valuation allowance	216	216	246
Loans with a specific valuation allowance, Average balance	3,064	3,035	2,928
Loans without a specific valuation allowance, Recorded balance	9,925	9,925	9,421
Loans without a specific valuation allowance, Unpaid principal balance	11,061	11,061	10,380
Loans without a specific valuation allowance, Average balance	9,778	9,659	9,834
Recorded balance	12,426	12,426	12,399
Unpaid principal balance	13,635	13,635	13,426
Average balance	12,842	12,694	12,762
Commercial | Commercial Real Estate
Summary of the impaired loans by portfolio class of loans
Loans with a specific valuation allowance, Recorded balance	10,169	10,169	4,545
Loans with a specific valuation allowance, Unpaid principal balance	10,369	10,369	4,573
Specific valuation allowance	707	707	500
Loans with a specific valuation allowance, Average balance	9,378	7,767	5,851
Loans without a specific valuation allowance, Recorded balance	80,727	80,727	72,991
Loans without a specific valuation allowance, Unpaid principal balance	99,904	99,904	89,839
Loans without a specific valuation allowance, Average balance	82,818	79,542	76,427
Recorded balance	90,896	90,896	77,536
Unpaid principal balance	110,273	110,273	94,412
Average balance	92,196	87,309	82,278
Commercial | Other Commercial
Summary of the impaired loans by portfolio class of loans
Loans with a specific valuation allowance, Recorded balance	2,671	2,671	8,183
Loans with a specific valuation allowance, Unpaid principal balance	2,719	2,719	8,378
Specific valuation allowance	957	957	3,851
Loans with a specific valuation allowance, Average balance	6,537	7,086	8,477
Loans without a specific valuation allowance, Recorded balance	28,114	28,114	14,849
Loans without a specific valuation allowance, Unpaid principal balance	31,724	31,724	16,931
Loans without a specific valuation allowance, Average balance	21,614	19,359	15,129
Recorded balance	30,785	30,785	23,032
Unpaid principal balance	34,443	34,443	25,309
Average balance	28,151	26,445	23,606
Consumer and Other | Home Equity
Summary of the impaired loans by portfolio class of loans
Loans with a specific valuation allowance, Recorded balance	0	0	186
Loans with a specific valuation allowance, Unpaid principal balance	0	0	199
Specific valuation allowance	0	0	56
Loans with a specific valuation allowance, Average balance	33	84	359
Loans without a specific valuation allowance, Recorded balance	3,589	3,589	3,569
Loans without a specific valuation allowance, Unpaid principal balance	4,157	4,157	4,098
Loans without a specific valuation allowance, Average balance	3,425	3,473	4,734
Recorded balance	3,589	3,589	3,755
Unpaid principal balance	4,157	4,157	4,297
Average balance	3,458	3,557	5,093
Consumer and Other | Other Consumer
Summary of the impaired loans by portfolio class of loans
Loans with a specific valuation allowance, Recorded balance	1,172	1,172	1,797
Loans with a specific valuation allowance, Unpaid principal balance	1,209	1,209	2,204
Specific valuation allowance	372	372	570
Loans with a specific valuation allowance, Average balance	1,331	1,486	1,371
Loans without a specific valuation allowance, Recorded balance	1,559	1,559	1,475
Loans without a specific valuation allowance, Unpaid principal balance	1,655	1,655	1,585
Loans without a specific valuation allowance, Average balance	1,508	1,497	1,821
Recorded balance	2,731	2,731	3,272
Unpaid principal balance	2,864	2,864	3,789
Average balance	$ 2,839	$ 2,983	$ 3,192

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Loans Receivable Aging Analysis (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Loan portfolio aging analysis
Non-accrual loans	$ 58,170	$ 44,833
Total past due and non-accrual loans	110,571	88,597
Current loans receivable	7,838,101	6,489,227
Total loans receivable	7,948,672	6,577,824
Accruing loans 30 to 59 days past due
Loan portfolio aging analysis
Past due loans	24,813	26,375
Accruing loans 60 to 89 days past due
Loan portfolio aging analysis
Past due loans	14,837	11,312
Accruing loans 90 days or more past due
Loan portfolio aging analysis
Past due loans	12,751	6,077
Residential Real Estate | Residential Real Estate
Loan portfolio aging analysis
Non-accrual loans	6,851	4,924
Total past due and non-accrual loans	12,513	14,336
Current loans receivable	822,869	706,392
Total loans receivable	835,382	720,728
Residential Real Estate | Residential Real Estate | Accruing loans 30 to 59 days past due
Loan portfolio aging analysis
Past due loans	1,017	6,252
Residential Real Estate | Residential Real Estate | Accruing loans 60 to 89 days past due
Loan portfolio aging analysis
Past due loans	3,595	794
Residential Real Estate | Residential Real Estate | Accruing loans 90 days or more past due
Loan portfolio aging analysis
Past due loans	1,050	2,366
Commercial
Loan portfolio aging analysis
Total loans receivable	6,325,216	5,156,492
Commercial | Commercial Real Estate
Loan portfolio aging analysis
Non-accrual loans	34,643	27,331
Total past due and non-accrual loans	58,628	45,853
Current loans receivable	4,326,153	3,531,286
Total loans receivable	4,384,781	3,577,139
Commercial | Commercial Real Estate | Accruing loans 30 to 59 days past due
Loan portfolio aging analysis
Past due loans	13,424	12,546
Commercial | Commercial Real Estate | Accruing loans 60 to 89 days past due
Loan portfolio aging analysis
Past due loans	4,603	5,367
Commercial | Commercial Real Estate | Accruing loans 90 days or more past due
Loan portfolio aging analysis
Past due loans	5,958	609
Commercial | Other Commercial
Loan portfolio aging analysis
Non-accrual loans	13,495	8,298
Total past due and non-accrual loans	29,724	18,407
Current loans receivable	1,910,711	1,560,946
Total loans receivable	1,940,435	1,579,353
Commercial | Other Commercial | Accruing loans 30 to 59 days past due
Loan portfolio aging analysis
Past due loans	5,908	3,634
Commercial | Other Commercial | Accruing loans 60 to 89 days past due
Loan portfolio aging analysis
Past due loans	5,079	3,502
Commercial | Other Commercial | Accruing loans 90 days or more past due
Loan portfolio aging analysis
Past due loans	5,242	2,973
Consumer and Other
Loan portfolio aging analysis
Total loans receivable	788,074	700,604
Consumer and Other | Home Equity
Loan portfolio aging analysis
Non-accrual loans	2,748	3,338
Total past due and non-accrual loans	6,476	6,467
Current loans receivable	504,567	451,451
Total loans receivable	511,043	457,918
Consumer and Other | Home Equity | Accruing loans 30 to 59 days past due
Loan portfolio aging analysis
Past due loans	2,617	2,142
Consumer and Other | Home Equity | Accruing loans 60 to 89 days past due
Loan portfolio aging analysis
Past due loans	800	987
Consumer and Other | Home Equity | Accruing loans 90 days or more past due
Loan portfolio aging analysis
Past due loans	311	0
Consumer and Other | Other Consumer
Loan portfolio aging analysis
Non-accrual loans	433	942
Total past due and non-accrual loans	3,230	3,534
Current loans receivable	273,801	239,152
Total loans receivable	277,031	242,686
Consumer and Other | Other Consumer | Accruing loans 30 to 59 days past due
Loan portfolio aging analysis
Past due loans	1,847	1,801
Consumer and Other | Other Consumer | Accruing loans 60 to 89 days past due
Loan portfolio aging analysis
Past due loans	760	662
Consumer and Other | Other Consumer | Accruing loans 90 days or more past due
Loan portfolio aging analysis
Past due loans	$ 190	$ 129

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Troubled Debt Restructurings (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018 USD ($) Loan	Jun. 30, 2017 USD ($) Loan	Jun. 30, 2018 USD ($) Loan	Jun. 30, 2017 USD ($) Loan
Troubled Debt Restructurings
TDRs that Occurred During the Period, Number of Loans | Loan	8	7	20	17
TDRs that Occurred During the Period, Pre-modification recorded balance	$ 5,273	$ 12,401	$ 21,270	$ 21,956
TDRs that Occurred During the Period, Post-modification recorded balance	$ 5,159	$ 9,719	$ 21,156	$ 19,274
TDRs that Subsequently Defaulted, Number of Loans | Loan	0	0	1	1
TDRs that Subsequently Defaulted, Recorded Balance	$ 0	$ 0	$ 334	$ 18
Residential Real Estate | Residential Real Estate
Troubled Debt Restructurings
TDRs that Occurred During the Period, Number of Loans | Loan	1	1	3	3
TDRs that Occurred During the Period, Pre-modification recorded balance	$ 227	$ 55	$ 666	$ 335
TDRs that Occurred During the Period, Post-modification recorded balance	$ 227	$ 55	$ 666	$ 335
TDRs that Subsequently Defaulted, Number of Loans | Loan	0	0	1	0
TDRs that Subsequently Defaulted, Recorded Balance	$ 0	$ 0	$ 334	$ 0
Commercial | Commercial Real Estate
Troubled Debt Restructurings
TDRs that Occurred During the Period, Number of Loans | Loan	4	4	8	6
TDRs that Occurred During the Period, Pre-modification recorded balance	$ 4,623	$ 12,035	$ 12,901	$ 12,617
TDRs that Occurred During the Period, Post-modification recorded balance	$ 4,509	$ 9,353	$ 12,787	$ 9,935
TDRs that Subsequently Defaulted, Number of Loans | Loan	0	0	0	0
TDRs that Subsequently Defaulted, Recorded Balance	$ 0	$ 0	$ 0	$ 0
Commercial | Other Commercial
Troubled Debt Restructurings
TDRs that Occurred During the Period, Number of Loans | Loan	1	1	7	5
TDRs that Occurred During the Period, Pre-modification recorded balance	$ 171	$ 286	$ 7,451	$ 8,816
TDRs that Occurred During the Period, Post-modification recorded balance	$ 171	$ 286	$ 7,451	$ 8,816
TDRs that Subsequently Defaulted, Number of Loans | Loan	0	0	0	1
TDRs that Subsequently Defaulted, Recorded Balance	$ 0	$ 0	$ 0	$ 18
Consumer and Other | Home Equity
Troubled Debt Restructurings
TDRs that Occurred During the Period, Number of Loans | Loan	2	1	2	2
TDRs that Occurred During the Period, Pre-modification recorded balance	$ 252	$ 25	$ 252	$ 178
TDRs that Occurred During the Period, Post-modification recorded balance	$ 252	$ 25	$ 252	$ 178
TDRs that Subsequently Defaulted, Number of Loans | Loan	0	0	0	0
TDRs that Subsequently Defaulted, Recorded Balance	$ 0	$ 0	$ 0	$ 0
Consumer and Other | Other Consumer
Troubled Debt Restructurings
TDRs that Occurred During the Period, Number of Loans | Loan	0	0	0	1
TDRs that Occurred During the Period, Pre-modification recorded balance	$ 0	$ 0	$ 0	$ 10
TDRs that Occurred During the Period, Post-modification recorded balance	$ 0	$ 0	$ 0	$ 10
TDRs that Subsequently Defaulted, Number of Loans | Loan	0	0	0	0
TDRs that Subsequently Defaulted, Recorded Balance	$ 0	$ 0	$ 0	$ 0

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Loans Receivable, Net (Details Textual)	6 Months Ended
	Jun. 30, 2018 USD ($) portfolio_segment	Dec. 31, 2017 USD ($)	Jun. 30, 2017 USD ($)
Loans and Leases Receivable Disclosure
Number of segments in the Company's loan portfolio | portfolio_segment	3
TDR With Pre Modification Loan Balance for Which Oreo Was Received	$ 1,313,000		$ 4,170,000
Consumer mortgage loans secured by residential real estate properties for which formal foreclosure proceedings are in process	1,172,000	$ 743,000
OREO Secured by Residential Real Estate	$ 968,000	$ 893,000

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Goodwill Changes in the Carrying Value of Goodwill (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Goodwill Roll Forward
Net carrying value at beginning of period	$ 289,535	$ 147,053	$ 177,811	$ 147,053
Acquisitions	0	30,758	111,724	30,758
Net carrying value at end of period	$ 289,535	$ 177,811	$ 289,535	$ 177,811

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Goodwill (Details Textual) - USD ($)	Jun. 30, 2018	Dec. 31, 2017
Goodwill and Intangible Assets Disclosure [Abstract]
Accumulated impairment charge	$ 40,159,000	$ 40,159,000

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Variable Interest Entities VIE Carrying Amounts Included in Financial Statements (Details) - Consolidated VIEs - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Consolidated VIEs
Assets	$ 101,619	$ 73,775
Liabilities	9,724	8,063
Loans Receivable
Consolidated VIEs
Assets	64,362	57,796
Accrued Interest Receivable
Consolidated VIEs
Assets	93	94
Other assets
Consolidated VIEs
Assets	37,164	15,885
Other borrowed funds
Consolidated VIEs
Liabilities	9,696	7,964
Accrued interest payable
Consolidated VIEs
Liabilities	1	1
Other liabilities
Consolidated VIEs
Liabilities	$ 27	$ 98

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Variable Interest Entities Amortization Expense and Tax Credits and Other Tax Benefits (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Investments in Qualified Affordable Housing Projects
Amortization expense	$ 1,030	$ 640	$ 1,921	$ 1,143
Tax credits and other tax benefits recognized	$ 1,423	$ 976	$ 2,663	$ 1,752

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Variable Interest Entities (Details Textual) - USD ($)	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Variable Interest Entities
Unfunded contingent commitments	$ 10,765,000
Unfunded contingent commitments expected to be fulfilled in 2018	7,633,000
Unfunded contingent commitments expected to be fulfilled in 2019	3,132,000
Impairment losses	0	$ 0
Other assets
Variable Interest Entities
Carrying value of equity investments in LIHTCs	$ 28,269,000		$ 9,169,000
CDE
Variable Interest Entities
Tax credit period	7 years
LIHTC
Variable Interest Entities
Tax credit period	10 years
Tax credit compliance period	15 years

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Carrying Value of Repurchase Agreements (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Securities Sold Under Agreements to Repurchase
Repurchase Agreements	$ 361,515	$ 362,573
Overnight and Continuous
Securities Sold Under Agreements to Repurchase
Repurchase Agreements	339,953	362,573
30 - 90 Days
Securities Sold Under Agreements to Repurchase
Repurchase Agreements	0	0
Greater Than 90 Days
Securities Sold Under Agreements to Repurchase
Repurchase Agreements	21,562	0
State and local governments
Securities Sold Under Agreements to Repurchase
Repurchase Agreements	40,106
State and local governments | Overnight and Continuous
Securities Sold Under Agreements to Repurchase
Repurchase Agreements	18,544
State and local governments | 30 - 90 Days
Securities Sold Under Agreements to Repurchase
Repurchase Agreements	0
State and local governments | Greater Than 90 Days
Securities Sold Under Agreements to Repurchase
Repurchase Agreements	21,562
Residential mortgage-backed securities
Securities Sold Under Agreements to Repurchase
Repurchase Agreements	319,731	360,751
Residential mortgage-backed securities | Overnight and Continuous
Securities Sold Under Agreements to Repurchase
Repurchase Agreements	319,731	360,751
Residential mortgage-backed securities | 30 - 90 Days
Securities Sold Under Agreements to Repurchase
Repurchase Agreements	0	0
Residential mortgage-backed securities | Greater Than 90 Days
Securities Sold Under Agreements to Repurchase
Repurchase Agreements	0	0
Commercial mortgage-backed securities
Securities Sold Under Agreements to Repurchase
Repurchase Agreements	1,678	1,822
Commercial mortgage-backed securities | Overnight and Continuous
Securities Sold Under Agreements to Repurchase
Repurchase Agreements	1,678	1,822
Commercial mortgage-backed securities | 30 - 90 Days
Securities Sold Under Agreements to Repurchase
Repurchase Agreements	0	0
Commercial mortgage-backed securities | Greater Than 90 Days
Securities Sold Under Agreements to Repurchase
Repurchase Agreements	$ 0	$ 0

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Securities Sold Under Agreements to Repurchase Securities Sold Under Agreements to Repurchase (Details Textual) - USD ($)	Jun. 30, 2018	Dec. 31, 2017
Securities Sold Under Agreements to Repurchase
Repurchase Agreements	$ 361,515,000	$ 362,573,000
Securities Pledged for Repurchase Agreements	$ 503,935,000	$ 475,601,000

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Interest Rate Swap Summary (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2018 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]
Payment Term, Effective Date	Oct. 21, 2014
Payment 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]
Payment Term, Effective Date	Nov. 30, 2015
Payment 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	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Interest Expense
Pre-Tax Gains or Losses
Amount of loss reclassified from OCI to interest expense	$ (577)	$ (1,262)	$ (1,477)	$ (2,594)
Other Non-Interest Expense
Pre-Tax Gains or Losses
Amount of loss recognized in other non-interest expense (ineffective portion)	0	0	0	0
Other Comprehensive Income
Pre-Tax Gains or Losses
Amount of gain (loss) recognized in OCI (effective portion)	$ 1,689	$ (2,108)	$ 6,068	$ (1,844)

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Derivatives and Hedging Activities Offsetting Assets (Details) - Interest Rate Swap - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Offsetting Derivative Assets
Gross Amounts of Recognized Assets	$ 1,386	$ 0
Gross Amounts Offset in the Statements of Financial Position	(1,386)	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	Jun. 30, 2018	Dec. 31, 2017
Offsetting Derivative Liabilities
Gross Amounts of Recognized Liabilities	$ 3,230	$ 9,389
Gross Amounts Offset in the Statements of Financial Position	(1,386)	0
Net Amounts of Liabilities Presented in the Statements of Financial Position	$ 1,844	$ 9,389

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Derivatives and Hedging Activities (Details Textual) - USD ($)	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Interest Rate Lock Commitments
Interest rate swap derivative financial instruments
Off-balance Sheet Commitments	$ 118,842,000		$ 67,861,000
Interest Rate Swap One
Interest rate swap derivative financial instruments
Forecasted Notional Amount	160,000,000
Interest Rate Swap Two
Interest rate swap derivative financial instruments
Forecasted Notional Amount	100,000,000
Interest Rate Swap
Interest rate swap derivative financial instruments
Interest expense recorded on interest rate swap	3,840,000	$ 3,973,000
Unrealized loss to be reclassified within twelve months	1,817,000
Investment securities pledged as collateral	5,243,000
Collateral pledged from the counterparties to the Company	$ 0

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Other Expenses (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Other Expenses
Mergers and acquisition expenses	$ 2,926	$ 866	$ 4,762	$ 949
Consulting and outside services	1,795	984	3,174	2,404
Debit card expenses	1,148	1,794	2,788	3,512
Telephone	1,142	934	2,163	1,911
Employee expenses	1,142	1,125	1,933	1,914
Loan expenses	984	722	1,788	1,613
Postage	776	636	1,555	1,361
Printing and supplies	792	668	1,483	1,308
VIE amortization and other expenses	938	948	1,412	1,412
Business development	642	453	1,110	793
Accounting and audit fees	393	519	811	1,009
Legal fees	467	227	781	506
ATM expenses	345	382	634	694
Checking and operating expenses	354	362	467	727
Other	1,207	885	2,351	1,812
Total other expenses	$ 15,051	$ 11,505	$ 27,212	$ 21,925

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Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Accumulated Other Comprehensive Loss
Balance, beginning			$ (1,979)	$ (7,382)
Other comprehensive income (loss) before reclassification			(19,665)	11,127
Reclassification adjustments for losses included in net income			1,362	1,954
Net current period other comprehensive income (loss)	$ (3,259)	$ 10,111	(18,303)	13,081
Balance, end	(20,282)	5,699	(20,282)	5,699
Available-For-Sale Debt Securities
Accumulated Other Comprehensive Loss
Balance, beginning			5,031	1,639
Other comprehensive income (loss) before reclassification			(24,195)	12,256
Reclassification adjustments for losses included in net income			259	365
Net current period other comprehensive income (loss)			(23,936)	12,621
Balance, end	(18,905)	14,260	(18,905)	14,260
Derivatives Used for Cash Flow Hedges
Accumulated Other Comprehensive Loss
Balance, beginning			(7,010)	(9,021)
Other comprehensive income (loss) before reclassification			4,530	(1,129)
Reclassification adjustments for losses included in net income			1,103	1,589
Net current period other comprehensive income (loss)			5,633	460
Balance, end	$ (1,377)	$ (8,561)	$ (1,377)	$ (8,561)

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Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Basic and Diluted Earnings Per Share
Net income available to common stockholders, basic and diluted	$ 44,384	$ 33,687	$ 82,943	$ 64,942
Average outstanding shares - basic	84,514,257	77,546,236	82,671,816	77,061,867
Add: dilutive restricted stock awards and stock options	45,011	46,089	62,591	63,810
Average outstanding shares - diluted	84,559,268	77,592,325	82,734,407	77,125,677
Basic earnings per share	$ 0.53	$ 0.43	$ 1.00	$ 0.84
Diluted earnings per share	$ 0.52	$ 0.43	$ 1.00	$ 0.84
Earnings Per Share
Restricted stock awards and stock options excluded from the diluted average outstanding share calculation			0	0

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Fair Value Measurements on a Recurring Basis (Details) - Recurring Measurements - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Financial Assets
Loans held for sale, at fair value	$ 53,788	$ 38,833
Total assets measured at fair value on a recurring basis	2,231,140	1,817,076
Financial Liabilities
Total liabilities measured at fair value on a recurring basis	1,844	9,389
Interest rate swaps
Financial Liabilities
Interest rate swaps	1,844	9,389
U.S. government and federal agency
Financial Assets
Debt securities, available-for-sale	28,093	31,127
U.S. government sponsored enterprises
Financial Assets
Debt securities, available-for-sale	119,360	19,091
State and local governments
Financial Assets
Debt securities, available-for-sale	653,918	629,501
Corporate bonds
Financial Assets
Debt securities, available-for-sale	318,422	216,762
Residential mortgage-backed securities
Financial Assets
Debt securities, available-for-sale	886,348	779,283
Commercial mortgage-backed securities
Financial Assets
Debt securities, available-for-sale	171,211	102,479
Level 1
Financial Assets
Loans held for sale, at fair value	0	0
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
Debt securities, available-for-sale	0	0
Level 1 | U.S. government sponsored enterprises
Financial Assets
Debt securities, available-for-sale	0	0
Level 1 | State and local governments
Financial Assets
Debt securities, available-for-sale	0	0
Level 1 | Corporate bonds
Financial Assets
Debt securities, available-for-sale	0	0
Level 1 | Residential mortgage-backed securities
Financial Assets
Debt securities, available-for-sale	0	0
Level 1 | Commercial mortgage-backed securities
Financial Assets
Debt securities, available-for-sale	0	0
Level 2
Financial Assets
Loans held for sale, at fair value	53,788	38,833
Total assets measured at fair value on a recurring basis	2,231,140	1,817,076
Financial Liabilities
Total liabilities measured at fair value on a recurring basis	1,844	9,389
Level 2 | Interest rate swaps
Financial Liabilities
Interest rate swaps	1,844	9,389
Level 2 | U.S. government and federal agency
Financial Assets
Debt securities, available-for-sale	28,093	31,127
Level 2 | U.S. government sponsored enterprises
Financial Assets
Debt securities, available-for-sale	119,360	19,091
Level 2 | State and local governments
Financial Assets
Debt securities, available-for-sale	653,918	629,501
Level 2 | Corporate bonds
Financial Assets
Debt securities, available-for-sale	318,422	216,762
Level 2 | Residential mortgage-backed securities
Financial Assets
Debt securities, available-for-sale	886,348	779,283
Level 2 | Commercial mortgage-backed securities
Financial Assets
Debt securities, available-for-sale	171,211	102,479
Level 3
Financial Assets
Loans held for sale, at fair value	0	0
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
Debt securities, available-for-sale	0	0
Level 3 | U.S. government sponsored enterprises
Financial Assets
Debt securities, available-for-sale	0	0
Level 3 | State and local governments
Financial Assets
Debt securities, available-for-sale	0	0
Level 3 | Corporate bonds
Financial Assets
Debt securities, available-for-sale	0	0
Level 3 | Residential mortgage-backed securities
Financial Assets
Debt securities, available-for-sale	0	0
Level 3 | Commercial mortgage-backed securities
Financial Assets
Debt securities, available-for-sale	$ 0	$ 0

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Fair Value Measurements on a Non-Recurring Basis (Details) - Non-Recurring Measurements - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Assets with a recorded change resulting from re-measuring at fair value on a non-recurring basis
Other real estate owned	$ 735	$ 2,296
Collateral-dependent impaired loans, net of ALLL	4,302	6,339
Total assets measured at fair value on a non-recurring basis	5,037	8,635
Level 1
Assets with a recorded change resulting 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 resulting 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 resulting from re-measuring at fair value on a non-recurring basis
Other real estate owned	735	2,296
Collateral-dependent impaired loans, net of ALLL	4,302	6,339
Total assets measured at fair value on a non-recurring basis	$ 5,037	$ 8,635

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Quantitative Information about Level 3 Fair Value Measurements (Details) - Non-Recurring Measurements - USD ($) $ in Thousands		6 Months Ended	12 Months Ended
		Jun. 30, 2018	Dec. 31, 2017
Quantitative Information About Level 3 Fair Value Measurements
Fair Value		$ 5,037	$ 8,635
Level 3
Quantitative Information About Level 3 Fair Value Measurements
Fair Value		5,037	8,635
Other real estate owned | Sales Comparison Approach | Level 3
Quantitative Information About Level 3 Fair Value Measurements
Fair Value		$ 735	$ 2,296
Other real estate owned | Minimum Range | Sales Comparison Approach | Level 3
Unobservable Inputs
Selling Costs	[1]	8.00%	0.00%
Other real estate owned | Maximum Range | Sales Comparison Approach | Level 3
Unobservable Inputs
Selling Costs	[1]	15.00%	10.00%
Other real estate owned | Weighted Average Range | Sales Comparison Approach | Level 3
Unobservable Inputs
Selling Costs	[1]	9.30%	6.00%
Collateral-dependent Impaired Loans, Net of ALLL | Level 3
Quantitative Information About Level 3 Fair Value Measurements
Fair Value		$ 4,302	$ 6,339
Collateral-dependent Impaired Loans, Net of ALLL | Sales Comparison Approach | Level 3
Quantitative Information About Level 3 Fair Value Measurements
Fair Value		4,289	2,541
Collateral-dependent Impaired Loans, Net of ALLL | Cost Approach | Level 3
Quantitative Information About Level 3 Fair Value Measurements
Fair Value		$ 13	238
Collateral-dependent Impaired Loans, Net of ALLL | Combined Approach | Level 3
Quantitative Information About Level 3 Fair Value Measurements
Fair Value			$ 3,560
Collateral-dependent Impaired Loans, Net of ALLL | Minimum Range | Sales Comparison Approach | Level 3
Unobservable Inputs
Selling Costs	[1]	8.00%	8.00%
Collateral-dependent Impaired Loans, Net of ALLL | Minimum Range | Cost Approach | Level 3
Unobservable Inputs
Selling Costs	[1]	20.00%	10.00%
Collateral-dependent Impaired Loans, Net of ALLL | Minimum Range | Combined Approach | Level 3
Unobservable Inputs
Selling Costs	[1]		10.00%
Collateral-dependent Impaired Loans, Net of ALLL | Maximum Range | Sales Comparison Approach | Level 3
Unobservable Inputs
Selling Costs	[1]	20.00%	10.00%
Collateral-dependent Impaired Loans, Net of ALLL | Maximum Range | Cost Approach | Level 3
Unobservable Inputs
Selling Costs	[1]	20.00%	20.00%
Collateral-dependent Impaired Loans, Net of ALLL | Maximum Range | Combined Approach | Level 3
Unobservable Inputs
Selling Costs	[1]		10.00%
Collateral-dependent Impaired Loans, Net of ALLL | Weighted Average Range | Sales Comparison Approach | Level 3
Unobservable Inputs
Selling Costs	[1]	10.30%	9.40%
Collateral-dependent Impaired Loans, Net of ALLL | Weighted Average Range | Cost Approach | Level 3
Unobservable Inputs
Selling Costs	[1]	20.00%	10.60%
Collateral-dependent Impaired Loans, Net of ALLL | Weighted Average Range | Combined Approach | Level 3
Unobservable Inputs
Selling Costs	[1]		10.00%

[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	Jun. 30, 2018	Dec. 31, 2017
Carrying Amount
Financial assets
Cash and cash equivalents	$ 368,132	$ 200,004
Debt securities, held-to-maturity	620,409	648,313
Loans receivable, net of ALLL	7,817,108	6,448,256
Total financial assets	8,805,649	7,296,573
Financial liabilities
Term deposits	1,100,158	977,302
FHLB advances	395,037	353,995
Repurchase agreements and other borrowed funds	371,432	370,797
Subordinated debentures	134,058	126,135
Total financial liabilities	2,000,685	1,828,229
Estimated Fair Value | Level 1
Financial assets
Cash and cash equivalents	368,132	200,004
Debt securities, held-to-maturity	0	0
Loans receivable, net of ALLL	0	0
Total financial assets	368,132	200,004
Financial liabilities
Term deposits	0	0
FHLB advances	0	0
Repurchase agreements and other borrowed funds	0	0
Subordinated debentures	0	0
Total financial liabilities	0	0
Estimated Fair Value | Level 2
Financial assets
Cash and cash equivalents	0	0
Debt securities, held-to-maturity	618,509	660,086
Loans receivable, net of ALLL	0	6,219,515
Total financial assets	618,509	6,879,601
Financial liabilities
Term deposits	1,101,821	978,803
FHLB advances	395,132	352,886
Repurchase agreements and other borrowed funds	371,435	370,797
Subordinated debentures	121,325	98,023
Total financial liabilities	1,989,713	1,800,509
Estimated Fair Value | Level 3
Financial assets
Cash and cash equivalents	0	0
Debt securities, held-to-maturity	0	0
Loans receivable, net of ALLL	7,814,402	114,771
Total financial assets	7,814,402	114,771
Financial liabilities
Term deposits	0	0
FHLB advances	0	0
Repurchase agreements and other borrowed funds	0	0
Subordinated debentures	0	0
Total financial liabilities	$ 0	$ 0

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Fair Value Measurements (Details Textual) - USD ($)	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Fair Value Disclosures [Abstract]
Fair value measurement transfers from one level to another	$ 0	$ 0
Fair Value, Option, Changes in Fair Value, Gain (Loss)	$ (21,000)	$ 0

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Mergers and Acquisitions Consideration Transferred, Identifiable Net Assets Acquired and Goodwill Recognized (Details) - USD ($)		3 Months Ended		6 Months Ended
		Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Fair value of consideration transferred
Effective settlement of a pre-existing relationship				$ 10,054,000	$ 0
Liabilities assumed
Goodwill recognized		$ 0	$ 30,758,000	111,724,000	$ 30,758,000
First Security Bank
Fair value of consideration transferred
Fair value of Company shares issued, net of equity issuance costs				181,043,000
Cash consideration for outstanding shares				0
Effective settlement of a pre-existing relationship				0
Total fair value of consideration transferred				181,043,000
Identifiable assets acquired
Cash and cash equivalents		24,397,000		24,397,000
Debt securities		271,865,000		271,865,000
Loans receivable		627,767,000		627,767,000
Core deposit intangible	[1]	31,053,000		31,053,000
Accrued income and other assets		78,325,000		78,325,000
Total identifiable assets acquired		1,033,407,000		1,033,407,000
Liabilities assumed
Deposits		877,586,000		877,586,000
Borrowings	[2]	36,880,000		36,880,000
Accrued expenses and other liabilities		14,175,000		14,175,000
Total liabilities assumed		928,641,000		928,641,000
Total identifiable net assets		104,766,000		104,766,000
Goodwill recognized				$ 76,277,000
Core Deposit Intangible, Weighted Average Useful Life				10 years
Business Combination Recognized Identifiable Assets Acquired and Liabilities Assumed, Subordinated Debentures		7,903,000		$ 7,903,000
Collegiate Peaks Bank
Fair value of consideration transferred
Fair value of Company shares issued, net of equity issuance costs				69,764,000
Cash consideration for outstanding shares				16,265,000
Effective settlement of a pre-existing relationship				10,054,000
Total fair value of consideration transferred				96,083,000
Identifiable assets acquired
Cash and cash equivalents		93,136,000		93,136,000
Debt securities		42,177,000		42,177,000
Loans receivable		354,252,000		354,252,000
Core deposit intangible	[1]	10,275,000		10,275,000
Accrued income and other assets		15,911,000		15,911,000
Total identifiable assets acquired		515,751,000		515,751,000
Liabilities assumed
Deposits		437,171,000		437,171,000
Borrowings		12,509,000		12,509,000
Accrued expenses and other liabilities		5,435,000		5,435,000
Total liabilities assumed		455,115,000		455,115,000
Total identifiable net assets		$ 60,636,000		60,636,000
Goodwill recognized				$ 35,447,000
Core Deposit Intangible, Weighted Average Useful Life				10 years

[1] The core deposit intangible for each acquisition was determined to have an estimated life of 10 years.

[2] Borrowings assumed with the FSB acquisition include Tier 2 subordinated debentures of $7,903,000.

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Mergers and Acquisitions Pro Forma Summary (Details) - 2018 acquisitions - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Pro Forma Information
Net interest income and non-interest income	$ 140,382	$ 129,461	$ 270,450	$ 250,107
Net income	$ 44,384	$ 39,094	$ 78,332	$ 74,551

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Mergers and Acquisitions (Details Textual) - USD ($)	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Business Acquisition
Effective settlement of a pre-existing relationship	$ 10,054,000	$ 0
First Security Bank
Business Acquisition
Business Acquisition, Effective Date of Acquisition	Feb. 28, 2018
Percentage of Outstanding Common Stock Acquired	100.00%
Business Combination, Consideration Transferred	$ 181,043,000
Number of Shares Issued for Aquisition	4,654,091
Cash consideration for outstanding shares	$ 0
Effective settlement of a pre-existing relationship	0
Loans receivable	627,767,000
Loans Receivable Acquired, Gross Principal and Contractual Interest Due	632,370,000
Third-party Acquisition Related Costs	3,850,000
Net interest income and non-interest income	17,044,000
Net income	$ 3,637,000
Collegiate Peaks Bank
Business Acquisition
Business Acquisition, Effective Date of Acquisition	Jan. 31, 2018
Percentage of Outstanding Common Stock Acquired	100.00%
Business Combination, Consideration Transferred	$ 96,083,000
Number of Shares Issued for Aquisition	1,778,777
Cash consideration for outstanding shares	$ 16,265,000
Effective settlement of a pre-existing relationship	10,054,000
Loans receivable	354,252,000
Loans Receivable Acquired, Gross Principal and Contractual Interest Due	355,364,000
Third-party Acquisition Related Costs	828,000
Net interest income and non-interest income	10,218,000
Net income	$ 2,681,000