10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 10-Q

(Mark One)

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

For the quarterly period ended September 30, 2017

OR

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

For the transition period from to

Commission File Number: 001-35654

NATIONAL BANK HOLDINGS CORPORATION

(Exact name of registrant as specified in its charter)

Delaware	27-0563799
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)

7800 East Orchard, Suite 300, Greenwood Village, Colorado 80111

(Address of principal executive offices) (Zip Code)

Registrant’s telephone, including area code: (720) 529-3336

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.    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).    Yes  ☒    No  ◻

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a 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	☒	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  ◻    No  ☒

APPLICABLE ONLY TO CORPORATE ISSUERS:

Indicate the number of shares outstanding of each of the issuer’s classes of common stock, as of the latest practicable date.

As of November 1, 2017, the registrant had outstanding 26,848,151 shares of Class A voting common stock, each with $0.01 par value per share, excluding 166,186 shares of restricted Class A common stock issued but not yet vested.



		Page
Part I. Financial Information
Item 1.	Financial Statements (Unaudited)	3
	Consolidated Statements of Financial Condition as of September 30, 2017 and December 31, 2016	3
	Consolidated Statements of Operations for the Three and Nine months ended September 30, 2017 and 2016	4
	Consolidated Statements of Comprehensive Income for the Three and Nine months ended September 30, 2017 and 2016	5
	Consolidated Statements of Changes in Shareholders’ Equity for the Nine months ended September 30, 2017 and 2016	6
	Consolidated Statements of Cash Flows for the Nine months ended September 30, 2017 and 2016	7
	Notes to Consolidated Financial Statements	8
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	37
Item 3.	Quantitative and Qualitative Disclosures About Market Risk	66
Item 4.	Controls and Procedures	66
Part II. Other Information
Item 1.	Legal Proceedings	68
Item 1A.	Risk Factors	68
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds	68
Item 5.	Other Information	68
Item 6.	Exhibits	68

CAUTIONARY NOTE REGARDING FORWARD-LOOKING STATEMENTS

This report contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995, notwithstanding that such statements are not specifically identified. Any statements about our expectations, beliefs, plans, predictions, forecasts, objectives, assumptions or future events or performance are not historical facts and may be forward-looking. These statements are often, but not always, made through the use of words or phrases such as “anticipate,” “believe,” “can,” “would,” “should,” “could,” “may,” “predict,” “seek,” “potential,” “will,” “estimate,” “target,” “plan,” “project,” “continuing,” “ongoing,” “expect,” “intend” and similar words or phrases. These statements are only predictions and involve estimates, known and unknown risks, assumptions and uncertainties. We have based these statements largely on our current expectations and projections about future events and financial trends that we believe may affect our financial condition, liquidity, results of operations, business strategy and growth prospects.

Forward-looking statements involve certain important risks, uncertainties and other factors, any of which could cause actual results to differ materially from those in such statements and, therefore, you are cautioned not to place undue reliance on such statements. Factors that could cause actual results to differ from those discussed in the forward-looking statements include, but are not limited to:

       our ability to execute our business strategy, as well as changes in our business strategy or development plans;

       business and economic conditions generally and in the financial services industry;

       economic, market, operational, liquidity, credit and interest rate risks associated with our business;

       effects of any changes in trade, monetary and fiscal policies and laws, including the interest rate policies of the Federal Reserve Board;

       changes imposed by regulatory agencies to increase our capital to a level greater than the current level required for well-capitalized financial institutions;

       effects of inflation, as well as, interest rate, securities market and monetary supply fluctuations;

       changes in the economy or supply-demand imbalances affecting local real estate values;

       changes in consumer spending, borrowings and savings habits;

       our ability to identify potential candidates for, obtain regulatory approval for, and consummate, acquisitions of financial institutions on attractive terms, or at all;

       our ability to integrate acquisitions or consolidations and to achieve synergies, operating efficiencies and/or other expected benefits within expected time-frames, or at all, or within expected cost projections, and to preserve the goodwill of acquired financial institutions;

       our ability to realize the anticipated benefits from enhancements or updates to our core operating systems from time to time without significant change in our client service or risk to our control environment; 

       dependence on information technology and telecommunications systems of third party service providers and the risk of system failures, interruptions or breaches of security, including those that could result in disclosure or misuse of confidential or proprietary client or other information;

       our ability to achieve organic loan and deposit growth and the composition of such growth;

       changes in sources and uses of funds, including loans, deposits and borrowings;

       increased competition in the financial services industry, nationally, regionally or locally, resulting in, among other things, lower returns;

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       the effect of changes in accounting policies and practices, as may be adopted by the regulatory agencies, as well as the Public Company Accounting Oversight Board, the Financial Accounting Standards Board and other accounting standard setters;

       the trading price of shares of the Company's stock;

       our ability to realize deferred tax assets or the need for a valuation allowance, or the effects of changes in tax laws on our deferred tax assets;

       continued consolidation in the financial services industry;

       our ability to maintain or increase market share and control expenses;

       costs and effects of changes in laws and regulations and of other legal and regulatory developments, including, but not limited to, changes in regulation that affect the fees that we charge, the resolution of legal proceedings or regulatory or other governmental inquiries, and the results of regulatory examinations, reviews or other inquiries; and changes in regulations that apply to us due to the conversion of our bank subsidiary to a Colorado state-chartered bank;

       technological changes;

       the timely development and acceptance of new products and services and perceived overall value of these products and services by our clients;

       changes in our management personnel and our continued ability to hire and retain qualified personnel;

       ability to implement and/or improve operational management and other internal risk controls and processes and our reporting system and procedures;

       regulatory limitations on dividends from our bank subsidiary;

       changes in estimates of future loan reserve requirements based upon the periodic review thereof under relevant regulatory and accounting requirements;

       widespread natural and other disasters, dislocations, political instability, acts of war or terrorist activities, cyberattacks or international hostilities through impacts on the economy and financial markets generally or on us or our counterparties specifically;

       impact of reputational risk on such matters as business generation and retention;

       other risks and uncertainties listed from time to time in the Company’s reports and documents filed with the Securities and Exchange Commission; and

       our success at managing the risks involved in the foregoing items.

Any forward-looking statement speaks only as of the date on which it is made, and we undertake no obligation to update any forward-looking statement to reflect events or circumstances after the date on which the statement is made or to reflect the occurrence of unanticipated events or circumstances, except as required by applicable law.

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PART I: FINANCIAL INFORMATION

Item 1: FINANCIAL STATEMENTS

NATIONAL BANK HOLDINGS CORPORATION AND SUBSIDIARIES

Consolidated Statements of Financial Condition (Unaudited)

(In thousands, except share and per share data)

	September 30, 2017		December 31, 2016
ASSETS
Cash and due from banks	$	221,160	$	152,736
Interest bearing bank deposits		20,000		—
Cash and cash equivalents		241,160		152,736
Investment securities available-for-sale (at fair value)		812,051		884,232
Investment securities held-to-maturity (fair value of $275,608 and $332,573 at September 30, 2017 and December 31, 2016, respectively)		275,370		332,505
Non-marketable securities		15,537		14,949
Loans		3,120,543		2,860,921
Allowance for loan losses		(30,047)		(29,174)
Loans, net		3,090,496		2,831,747
Loans held for sale		12,212		24,187
Other real estate owned		12,330		15,662
Premises and equipment, net		91,654		95,671
Goodwill		59,630		59,630
Intangible assets, net		2,840		6,949
Other assets		155,692		154,778
Total assets	$	4,768,972	$	4,573,046
LIABILITIES AND SHAREHOLDERS’ EQUITY
Liabilities:
Deposits:
Non-interest bearing demand deposits	$	910,675	$	846,744
Interest bearing demand deposits		431,786		427,538
Savings and money market		1,470,714		1,422,321
Time deposits		1,133,167		1,172,046
Total deposits		3,946,342		3,868,649
Securities sold under agreements to repurchase		92,814		92,011
Federal Home Loan Bank advances		129,115		38,665
Other liabilities		50,457		37,532
Total liabilities		4,218,728		4,036,857
Shareholders’ equity:
Common stock, par value $0.01 per share: 400,000,000 shares authorized; 51,585,248 and 51,813,011 shares issued; 26,802,964 and 26,386,583 shares outstanding at September 30, 2017 and December 31, 2016, respectively		515		514
Additional paid-in capital		972,027		984,087
Retained earnings		73,358		55,454
Treasury stock of 24,535,807 and 24,927,157 shares at September 30, 2017 and December 31, 2016, respectively, at cost		(494,321)		(502,104)
Accumulated other comprehensive loss, net of tax		(1,335)		(1,762)
Total shareholders’ equity		550,244		536,189
Total liabilities and shareholders’ equity	$	4,768,972	$	4,573,046

See accompanying notes to the consolidated interim financial statements.

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NATIONAL BANK HOLDINGS CORPORATION AND SUBSIDIARIES

Consolidated Statements of Operations (Unaudited)

(In thousands, except share and per share data)

	For the three months ended				For the nine months ended
	September 30,				September 30,
	2017		2016		2017		2016
Interest and dividend income:
Interest and fees on loans	$	36,064	$	33,450	$	102,238	$	96,477
Interest and dividends on investment securities		6,005		7,094		19,108		23,088
Dividends on non-marketable securities		234		160		619		581
Interest on interest-bearing bank deposits		276		60		687		644
Total interest and dividend income		42,579		40,764		122,652		120,790
Interest expense:
Interest on deposits		4,068		3,479		11,759		10,305
Interest on borrowings		613		221		1,380		630
Total interest expense		4,681		3,700		13,139		10,935
Net interest income before provision for loan losses		37,898		37,064		109,513		109,855
Provision for loan losses		3,880		5,293		9,700		22,369
Net interest income after provision for loan losses		34,018		31,771		99,813		87,486
Non-interest income:
Service charges		3,585		3,662		10,458		10,387
Bank card fees		3,076		2,828		9,014		8,530
Gain on sale of mortgages, net		668		819		1,716		2,251
Bank-owned life insurance income		475		497		1,417		1,378
Other non-interest income		1,611		2,135		7,149		5,299
OREO related income		136		1,667		449		2,190
Total non-interest income		9,551		11,608		30,203		30,035
Non-interest expense:
Salaries and benefits		19,363		20,091		59,662		60,315
Occupancy and equipment		5,208		5,666		15,887		17,440
Telecommunications and data processing		1,702		1,487		4,841		4,599
Marketing and business development		683		687		1,878		1,802
FDIC deposit insurance		715		734		2,106		2,719
Bank card expenses		971		1,133		2,751		3,009
Professional fees		754		909		2,441		2,343
Other non-interest expense		2,700		2,198		7,839		6,265
Problem asset workout		1,636		1,172		3,389		3,104
Gain on OREO sales, net		(497)		(2,077)		(2,254)		(4,120)
Intangible asset amortization		1,370		1,370		4,110		4,110
Total non-interest expense		34,605		33,370		102,650		101,586
Income before income taxes		8,964		10,009		27,366		15,935
Income tax expense		1,733		1,695		2,668		2,866
Net income	$	7,231	$	8,314	$	24,698	$	13,069
Income per share—basic	$	0.27	$	0.30	$	0.92	$	0.45
Income per share—diluted	$	0.26	$	0.30	$	0.89	$	0.45
Weighted average number of common shares outstanding:
Basic		26,947,821		27,654,827		26,902,128		28,991,094
Diluted		27,628,734		27,898,756		27,636,675		29,111,322

See accompanying notes to the consolidated interim financial statements.

4

NATIONAL BANK HOLDINGS CORPORATION AND SUBSIDIARIES

Consolidated Statements of Comprehensive Income (Unaudited)

(In thousands)

	For the three months ended				For the nine months ended
	September 30,				September 30,
	2017		2016		2017		2016
Net income	$	7,231	$	8,314	$	24,698	$	13,069
Other comprehensive (loss) income, net of tax:
Securities available-for-sale:
Net unrealized gains (losses) arising during the period, net of tax (expense) benefit of ($121) and $1,376 for the three months ended September 30, 2017 and 2016, respectively; and net of tax expense of ($913) and ($6,111) for the nine months ended September 30, 2017 and 2016, respectively		197		(2,242)		1,473		9,956
Less: amortization of net unrealized holding gains to income, net of tax benefit of $207 and $300 for the three months ended September 30, 2017 and 2016, respectively; and net of tax benefit of $642 and $923 for the nine months ended September 30, 2017 and 2016, respectively		(336)		(489)		(1,046)		(1,504)
Other comprehensive (loss) income		(139)		(2,731)		427		8,452
Comprehensive income	$	7,092	$	5,583	$	25,125	$	21,521

See accompanying notes to the consolidated interim financial statements.

5

NATIONAL BANK HOLDINGS CORPORATION AND SUBSIDIARIES

Consolidated Statements of Changes in Shareholders’ Equity (Unaudited)

Nine months ended September 30, 2017 and 2016

(In thousands, except share and per share data)

									Accumulated
			Additional						other
	Common		paid-in		Retained		Treasury		comprehensive
	stock		capital		earnings		stock		income (loss), net		Total
Balance, December 31, 2015	$	513	$	997,926	$	38,670	$	(419,660)	$	95	$	617,544
Net income		—		—		13,069		—		—		13,069
Stock-based compensation		—		2,692		—		—		—		2,692
Issuance of stock under equity compensation plans, including loss on reissuance of treasury stock of $5, net		1		(2,953)		—		2,669		—		(283)
Repurchase of 4,231,874 shares		—		—		—		(87,310)		—		(87,310)
Cash dividends declared ($0.15 per share)		—		—		(4,392)		—		—		(4,392)
Other comprehensive income		—		—		—		—		8,452		8,452
Balance, September 30, 2016	$	514	$	997,665	$	47,347	$	(504,301)	$	8,547	$	549,772
Balance, December 31, 2016	$	514	$	984,087	$	55,454	$	(502,104)	$	(1,762)	$	536,189
Net income		—		—		24,698		—		—		24,698
Stock-based compensation		—		2,771		—		—		—		2,771
Issuance of stock under purchase and equity compensation plans, including gain on reissuance of treasury stock of $5,080, net		1		(12,898)		—		5,850		—		(7,047)
Cash dividends declared ($0.25 per share)		—		—		(6,794)		—		—		(6,794)
Warrant exercise		—		(1,933)		—		1,933		—		—
Other comprehensive income		—		—		—		—		427		427
Balance, September 30, 2017	$	515	$	972,027	$	73,358	$	(494,321)	$	(1,335)	$	550,244

See accompanying notes to the consolidated interim financial statements.

6

NATIONAL BANK HOLDINGS CORPORATION AND SUBSIDIARIES

Consolidated Statements of Cash Flows (Unaudited)

(In thousands)

	For the nine months ended
	September 30,
	2017		2016
Cash flows from operating activities:
Net income	$	24,698	$	13,069
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for loan losses		9,700		22,369
Depreciation and amortization		9,862		10,864
Current income tax receivable		570		3,310
Deferred income taxes		2,116		6,846
Net excess tax (benefit) deficit on stock-based compensation		(3,442)		86
Discount accretion, net of premium amortization on securities		1,953		2,352
Loan accretion		(18,936)		(27,939)
Gain on sale of mortgages, net		(1,716)		(2,251)
Origination of loans held for sale, net of repayments		(66,333)		(79,747)
Proceeds from sales of loans held for sale		75,619		71,756
Bank-owned life insurance income		(1,417)		(1,378)
Gain on the sale of other real estate owned, net		(2,254)		(4,120)
Impairment on other real estate owned		766		262
Loss (gain) on sale of fixed assets		33		(1,840)
Gain from banking center divestitures		(2,886)		—
Stock-based compensation		2,771		2,692
Increase in other assets		(2,299)		(6,892)
Increase in other liabilities		9,917		17,747
Net cash provided by operating activities		38,722		27,186
Cash flows from investing activities:
Purchase of FHLB stock		(7,377)		(1,859)
Proceeds from redemption of FHLB stock		6,789		7,051
Proceeds from redemption of FRB stock		—		4,964
Proceeds from maturities of investment securities held-to-maturity		55,083		69,218
Proceeds from maturities of investment securities available-for-sale		171,326		207,413
Purchase of investment securities available-for-sale		(98,503)		(4,872)
Net increase in loans		(273,127)		(239,203)
(Purchases) sale of premises and equipment, net		(1,769)		1,328
Purchase of bank-owned life insurance		—		(10,344)
Proceeds from sales of loans		33,813		9,231
Proceeds from sales of other real estate owned		5,580		8,227
Net cash (used in) provided by investing activities		(108,185)		51,154
Cash flows from financing activities:
Net increase (decrease) in deposits		80,579		(15,670)
Increase (decrease) in repurchase agreements		803		(23,216)
Advances from FHLB		263,129		71,359
FHLB payoffs		(172,679)		(60,000)
Issuance of stock under purchase and equity compensation plans		(7,125)		(322)
Proceeds from exercise of stock options		78		—
Payment of dividends		(6,898)		(4,296)
Repurchase of shares		—		(87,310)
Net cash provided by (used in) financing activities		157,887		(119,455)
Increase (decrease) in cash and cash equivalents		88,424		(41,115)
Cash and cash equivalents at beginning of the year		152,736		166,092
Cash and cash equivalents at end of period	$	241,160	$	124,977
Supplemental disclosure of cash flow information during the period:
Cash paid for interest	$	11,437	$	9,336
Net tax payments (refunds)	$	33	$	(2,152)
Supplemental schedule of non-cash investing activities:
Loans transferred to other real estate owned at fair value	$	760	$	4,755
Loans purchased but not settled	$	6,554	$	11,537
Loans transferred from loans held for sale to loans	$	4,406	$	—

See accompanying notes to the consolidated interim financial statements.

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NATIONAL BANK HOLDINGS CORPORATION AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Unaudited)

September 30, 2017

Note 1 Basis of Presentation

National Bank Holdings Corporation ("NBHC" or the "Company") is a bank holding company that was incorporated in the State of Delaware in June 2009 with the intent to acquire and operate financial services franchises and other complementary businesses in targeted markets. The Company is headquartered immediately south of Denver, in Greenwood Village, Colorado, and its primary operations are conducted through its wholly owned subsidiary, NBH Bank, referred to as the Bank, or NBH Bank, a Colorado state-chartered bank and a member of the Federal Reserve System. The Company provides a variety of banking products to both commercial and consumer clients through a network of 85 banking centers located in Colorado, the greater Kansas City area and Texas, and through online and mobile banking products.

The accompanying interim unaudited consolidated financial statements serve to update the National Bank Holdings Corporation Annual Report on Form 10-K for the year ended December 31, 2016 and include the accounts of the Company and its wholly owned subsidiary, NBH Bank. The accompanying unaudited consolidated financial statements have been prepared in accordance with U.S. generally accepted accounting principles (“GAAP”) and where applicable, with general practices in the banking industry or guidelines prescribed by bank regulatory agencies. However, they may not include all information and notes necessary to constitute a complete set of financial statements under GAAP applicable to annual periods and accordingly should be read in conjunction with the financial information contained in the Company's most recent Form 10-K. The unaudited consolidated financial statements reflect all adjustments which are, in the opinion of management, necessary for a fair statement of the results presented. All such adjustments are of a normal recurring nature. All significant intercompany balances and transactions have been eliminated in consolidation. Certain reclassifications of prior years' amounts are made whenever necessary to conform to current period presentation. The results of operations for the interim period is not necessarily indicative of the results that may be expected for the full year or any other interim period. All amounts are in thousands, except share data, or as otherwise noted.

GAAP requires management to make estimates that affect the reported amounts of assets, liabilities, revenues and expenses, and disclosures of contingent assets and liabilities. By their nature, estimates are based on judgment and available information. Management has made significant estimates in certain areas, such as the amount and timing of expected cash flows from assets, the valuation of other real estate owned (“OREO”), the fair value adjustments on assets acquired and liabilities assumed, the valuation of core deposit intangible assets, the valuation of investment securities for other-than-temporary impairment (“OTTI”), the valuation of stock-based compensation, the fair values of financial instruments, the allowance for loan losses (“ALL”), and contingent liabilities. Because of the inherent uncertainties associated with any estimation process and future changes in market and economic conditions, it is possible that actual results could differ significantly from those estimates.

The Company's significant accounting policies followed in the preparation of the unaudited consolidated financial statements are disclosed in note 2 of the audited financial statements and notes for the year ended December 31, 2016 and are contained in the Company's Annual Report on Form 10-K. There have not been any significant changes to the application of significant accounting policies since December 31, 2016.

Note 2 Recent Accounting Pronouncements

Revenue from Contracts with Customers—In May 2014, the FASB issued ASU 2014-09, "Revenue from Contracts with Customers."  This update supersedes revenue recognition requirements in ASC Topic 605, Revenue Recognition, including most industry-specific revenue recognition guidance in the FASB Accounting Standards Codification. The new guidance stipulates that an entity should 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 those goods or services. The guidance provides specific steps that entities should apply in order to achieve this principle. The amendments are effective for interim and annual periods beginning after December 15, 2017, with early application permitted for interim and annual periods beginning after December 15, 2016. ASU No. 2014-09 allows for either full retrospective or modified retrospective adoption.

The new guidance does not apply to revenue associated with financial assets and liabilities including loans, leases, securities, and derivatives that are accounted for under other GAAP. Accordingly, the majority of the Company’s revenues will not be affected. The Company has completed its review of revenue streams and contracts with customers and has determined deposit service charges and bank card fees are within the scope of the ASU, but has not identified changes to the timing or amount of revenue recognition.

8

Accounting policies and procedures are not expected to change materially since the principals of revenue recognition from the ASU are largely consistent with existing guidance and current practices applied by the Company. The Company continues to assess the expanded revenue disclosure requirements under the new standard. The Company will adopt ASU No. 2014-09 on January 1, 2018 utilizing the modified retrospective approach.

Leases—In February 2016, the FASB issued ASU 2016-02, Leases. The guidance in ASU 2016-02 supersedes the lease recognition requirements in ASC Topic 840, Leases. The new standard establishes a right-of-use (ROU) model that requires a lessee to record a ROU asset and lease liability on the balance sheet for all leases with terms longer than 12 months. Leases will be classified as either finance or operating, with classification affecting the pattern of expense recognition in the income statements. The new standard is effective for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years, with early adoption permitted. A modified retrospective transition approach is required for lessees for capital and operating leases existing at, or entered into after, the beginning of the earliest comparative period presented in the financial statements. Early adoption of the amendments in the update is permitted. The Company will adopt ASU 2016-02 in the first quarter of 2019 and is currently in the process of evaluating the impact of the ASU's adoption on the Company's consolidated financial statements.

Financial Instruments - Credit Losses—In June 2016, the FASB issued ASU 2016-13, Measurement of Credit Losses on Financial Instruments. This update replaces the current incurred loss methodology for recognizing credit losses with a current expected credit loss model, which requires the measurement of all expected credit losses for financial assets held at the reporting date based on historical experience, current conditions, and reasonable and supportable forecasts. This amendment broadens the information that an entity must consider in developing its expected credit loss estimates. Additionally, the update amends the accounting for credit losses for available-for-sale debt securities and purchased financial assets with a more-than-insignificant amount of credit deterioration since origination. This update requires enhanced disclosures to help investors and other financial statement users better understand significant estimates and judgments used in estimating credit losses, as well as the credit quality and underwriting standards of a company’s loan portfolio. The amendments in this update are effective for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years. Early adoption in fiscal years beginning after December 15, 2018 is permitted. The amendment requires the use of the modified retrospective approach for adoption. The Company is in the process of evaluating the impact of the ASU’s adoption on the Company’s consolidated financial statements.

Derivatives and Hedging - Targeted Improvements to Accounting for Hedging Activities—In August 2017, the FASB issued ASU 2017-12, Derivatives and Hedging: Targeted Improvements to Accounting for Hedging Activities (ASU 2017-12). The purpose of this updated guidance is to better align a company’s financial reporting for hedging activities with the economic objectives of those activities. ASU 2017-12 is effective for public business entities for fiscal years beginning after December 15, 2018, with early adoption, including adoption in an interim period, permitted. ASU 2017-12 requires a modified retrospective transition method in which the Company will recognize the cumulative effect of the change on the opening balance of each affected component of equity in the consolidated statements of financial condition as of the date of adoption. While the Company continues to assess all potential impacts of the standard, we currently expect adoption to have an immaterial impact on our consolidated financial statements.

The Company reviewed ASU 2016-01, Financial Instruments – Recognition and Measurement of Financial Assets and Financial Liabilities (Topic 825), ASU 2016-15, Statement of Cash Flows: Classification of Certain Cash Receipts and Cash Payments, ASU 2017-04, Intangibles – Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment and ASU 2017-05, Other Income – Gains and Losses from the Derecognition of Nonfinancial Assets (Subtopic 610-20) and does not expect the adoption of these pronouncements to have a material impact on its financial statements.

Note 3 Investment Securities

The Company’s investment securities portfolio is comprised of available-for-sale and held-to-maturity investment securities. These investment securities totaled $1.1 billion at September 30, 2017 and included $0.8 billion of available-for-sale securities and $0.3 billion of held-to-maturity securities. At December 31, 2016, investment securities totaled $1.2 billion and included $0.9 billion of available-for-sale securities and $0.3 billion of held-to-maturity securities.

9

Available-for-sale

At September 30, 2017 and December 31, 2016, the Company held $0.8 billion and $0.9 billion of available-for-sale investment securities, respectively. Available-for-sale securities are summarized as follows as of the dates indicated:

	September 30, 2017
	Amortized		Gross		Gross
	cost		unrealized gains		unrealized losses		Fair value
Mortgage-backed securities (“MBS”):
Residential mortgage pass-through securities issued or guaranteed by U.S. Government agencies or sponsored enterprises	$	178,649	$	3,127	$	(387)	$	181,389
Other residential MBS issued or guaranteed by U.S. Government agencies or sponsored enterprises		639,456		1,321		(12,298)		628,479
Municipal securities		1,646		118		—		1,764
Other securities		419		—		—		419
Total	$	820,170	$	4,566	$	(12,685)	$	812,051

	December 31, 2016
	Amortized		Gross		Gross
	cost		unrealized gains		unrealized losses		Fair value
Mortgage-backed securities (“MBS”):
Residential mortgage pass-through securities issued or guaranteed by U.S. Government agencies or sponsored enterprises	$	223,781	$	3,909	$	(530)	$	227,160
Other residential MBS issued or guaranteed by U.S. Government agencies or sponsored enterprises		666,616		2,124		(16,001)		652,739
Municipal securities		3,921		—		(7)		3,914
Other securities		419		—		—		419
Total	$	894,737	$	6,033	$	(16,538)	$	884,232

At September 30, 2017 and December 31, 2016, mortgage-backed securities represented primarily all of the Company’s available-for-sale investment portfolio and all mortgage-backed securities were backed by government sponsored enterprises (“GSE”) collateral such as Federal Home Loan Mortgage Corporation (“FHLMC”) and Federal National Mortgage Association (“FNMA”), and the government sponsored agency Government National Mortgage Association (“GNMA”).

The table below summarizes the available-for-sale securities with unrealized losses as of the dates shown, along with the length of the impairment period:

	September 30, 2017
	Less than 12 months				12 months or more				Total
	Fair		Unrealized		Fair		Unrealized		Fair		Unrealized
	value		losses		value		losses		value		losses
Mortgage-backed securities (“MBS”):
Residential mortgage pass-through securities issued or guaranteed by U.S. Government agencies or sponsored enterprises	$	54,344	$	(387)	$	—	$	—	$	54,344	$	(387)
Other residential MBS issued or guaranteed by U.S. Government agencies or sponsored enterprises		55,703		(657)		396,893		(11,641)		452,596		(12,298)
Total	$	110,047	$	(1,044)	$	396,893	$	(11,641)	$	506,940	$	(12,685)

10

	December 31, 2016
	Less than 12 months				12 months or more				Total
	Fair		Unrealized		Fair		Unrealized		Fair		Unrealized
	value		losses		value		losses		value		losses
Mortgage-backed securities (“MBS”):
Residential mortgage pass-through securities issued or guaranteed by U.S. Government agencies or sponsored enterprises	$	100,898	$	(530)	$	—	$	—	$	100,898	$	(530)
Other residential MBS issued or guaranteed by U.S. Government agencies or sponsored enterprises		137,576		(2,976)		385,707		(13,025)		523,283		(16,001)
Municipal securities		3,058		(7)		—		—		3,058		(7)
Total	$	241,532	$	(3,513)	$	385,707	$	(13,025)	$	627,239	$	(16,538)

The unrealized losses in the Company's investment portfolio at September 30, 2017 were caused by changes in interest rates. The portfolio included 66 securities, having an aggregate fair value of $506.9 million, which were in an unrealized loss position at September 30, 2017. During the nine months ended September 30, 2017, the Company recorded $0.2 million of other-than-temporary impairment (OTTI) included in other non-interest expense on the consolidated statements of operations. The OTTI credit charge was on a single municipal security, with an aggregate fair value of $0.9 million at September 30, 2017.

The unrealized losses in the Company's investment portfolio at December 31, 2016 were caused by changes in interest rates. The portfolio included 61 securities, having an aggregate fair value of $627.2 million, which were in an unrealized loss position at December 31, 2016. Management evaluated all of the available-for-sale securities in an unrealized position and concluded no OTTI existed at December 31, 2016.

The Company has no intention to sell these securities before recovery of their amortized cost and believes it will not be required to sell the securities before the recovery of their amortized cost.

Certain securities are pledged as collateral for public deposits, securities sold under agreements to repurchase, and to secure borrowing capacity at the Federal Reserve Bank and Federal Home Loan Bank (“FHLB”), if needed. The fair value of available-for-sale investment securities pledged as collateral totaled $301.0 million at September 30, 2017 and $373.7 million at December 31, 2016. Certain investment securities may also be pledged as collateral for the line of credit at the FHLB of Topeka; at September 30, 2017 and December 31, 2016, no securities were pledged for this purpose.

Mortgage-backed securities do not have a single maturity date and actual maturities may differ from contractual maturities depending on the repayment characteristics and experience of the underlying financial instruments. The estimated weighted average life of the available-for-sale mortgage-backed securities portfolio was 3.1 years at September 30, 2017 and 3.4 years at December 31, 2016. This estimate is based on assumptions and actual results may differ. At September 30, 2017 and December 31, 2016, the duration of the total available-for-sale investment portfolio was 2.9 years and 3.2 years, respectively.

As of September 30, 2017, municipal securities with an amortized cost of $0.8 million and fair value of $0.9 million were due in one year, municipal securities with an amortized cost and fair value of $0.3 million were due after one year through five years, and municipal securities with an amortized cost and fair value of $0.6 million were due after five years through ten years. Other securities of $0.4 million as of September 30, 2017, have no stated contractual maturity date.

11

Held-to-maturity

At September 30, 2017 and December 31, 2016, the Company held $275.4 million and $332.5 million of held-to-maturity investment securities, respectively. Held-to-maturity investment securities are summarized as follows as of the dates indicated:

	September 30, 2017
			Gross		Gross
	Amortized		unrealized		unrealized
	cost		gains		losses		Fair value
Mortgage-backed securities (“MBS”):
Residential mortgage pass-through securities issued or guaranteed by U.S. Government agencies or sponsored enterprises	$	217,431	$	1,459	$	(104)	$	218,786
Other residential MBS issued or guaranteed by U.S. Government agencies or sponsored enterprises		57,939		—		(1,117)		56,822
Total investment securities held-to-maturity	$	275,370	$	1,459	$	(1,221)	$	275,608

	December 31, 2016
			Gross		Gross
	Amortized		unrealized		unrealized
	cost		gains		losses		Fair value
Mortgage-backed securities (“MBS”):
Residential mortgage pass-through securities issued or guaranteed by U.S. Government agencies or sponsored enterprises	$	263,411	$	1,685	$	(234)	$	264,862
Other residential MBS issued or guaranteed by U.S. Government agencies or sponsored enterprises		69,094		16		(1,399)		67,711
Total investment securities held-to-maturity	$	332,505	$	1,701	$	(1,633)	$	332,573

The table below summarizes the held-to-maturity securities with unrealized losses as of the dates shown, along with the length of the impairment period:

	September 30, 2017
	Less than 12 months				12 months or more				Total
	Fair		Unrealized		Fair		Unrealized		Fair		Unrealized
	value		losses		value		losses		value		losses
Mortgage-backed securities (“MBS”):
Residential mortgage pass-through securities issued or guaranteed by U.S. Government agencies or sponsored enterprises	$	19,284	$	(104)	$	—	$	—	$	19,284	$	(104)
Other residential MBS issued or guaranteed by U.S. Government agencies or sponsored enterprises		17,983		(202)		31,762		(915)		49,745		(1,117)
Total	$	37,267	$	(306)	$	31,762	$	(915)	$	69,029	$	(1,221)

	December 31, 2016
	Less than 12 months				12 months or more				Total
	Fair		Unrealized		Fair		Unrealized		Fair		Unrealized
	value		losses		value		losses		value		losses
Mortgage-backed securities (“MBS”):
Residential mortgage pass-through securities issued or guaranteed by U.S. Government agencies or sponsored enterprises	$	27,799	$	(234)	$	—	$	—	$	27,799	$	(234)
Other residential MBS issued or guaranteed by U.S. Government agencies or sponsored enterprises		26,992		(357)		32,146		(1,042)		59,138		(1,399)
Total	$	54,791	$	(591)	$	32,146	$	(1,042)	$	86,937	$	(1,633)

The held-to-maturity portfolio included 13 securities, having an aggregate fair value of $69.0 million, which were in an unrealized loss position at September 30, 2017, compared to 15 securities, with a fair value of $86.9 million, at December 31, 2016.

12

Management evaluated all of the held-to-maturity securities in an unrealized loss position and concluded that no OTTI existed at September 30, 2017 or December 31, 2016. The unrealized losses in the Company's investments issued or guaranteed by U.S. government agencies or sponsored enterprises at September 30, 2017 were caused by changes in interest rates. The Company has no intention to sell these securities before recovery of their amortized cost and believes it will not be required to sell the securities before the recovery of their amortized cost.

The carrying value of held-to-maturity investment securities pledged as collateral totaled $142.1 million and $119.2 million at September 30, 2017 and December 31, 2016, respectively. 

Actual maturities of mortgage-backed securities may differ from scheduled maturities depending on the repayment characteristics and experience of the underlying financial instruments. The estimated weighted average expected life of the held-to-maturity mortgage-backed securities portfolio as of September 30, 2017 and December 31, 2016 was 3.1 years and 3.5 years, respectively. This estimate is based on assumptions and actual results may differ. The duration of the total held-to-maturity investment portfolio was 2.9 years and 3.2 years as of September 30, 2017 and December 31, 2016, respectively.

Note 4 Loans

The loan portfolio is comprised of loans originated by the Company and loans that were acquired in connection with the Company’s acquisitions.

The table below shows the loan portfolio composition including carrying value by segment of loans accounted for under ASC Topic 310-30, Receivables—Loans and Debt Securities Acquired with Deteriorated Credit Quality, and loans not accounted for under this guidance, which includes the Company’s originated loans. The carrying value of loans is net of discounts on loans excluded from ASC 310-30, and fees and costs of $4.5 million and $6.3 million as of September 30, 2017 and December 31, 2016, respectively. At December 31, 2016, $14.4 million of non 310-30 loans were held-for-sale, most of which were in the residential real estate segment. The sale of these loans was completed in connection with the four banking center divestitures in the second quarter of 2017.

	September 30, 2017
	ASC 310-30 loans		Non 310-30 loans		Total loans		% of total
Commercial	$	31,875	$	1,776,008	$	1,807,883	57.9%
Commercial real estate non-owner occupied		79,798		481,856		561,654	18.0%
Residential real estate		13,420		710,954		724,374	23.2%
Consumer		503		26,129		26,632	0.9%
Total	$	125,596	$	2,994,947	$	3,120,543	100.0%

	December 31, 2016
	ASC 310-30 loans		Non 310-30 loans		Total loans		% of total
Commercial	$	39,280	$	1,521,150	$	1,560,430	54.6%
Commercial real estate non-owner occupied		89,150		437,642		526,792	18.4%
Residential real estate		16,524		728,361		744,885	26.0%
Consumer		898		27,916		28,814	1.0%
Total	$	145,852	$	2,715,069	$	2,860,921	100.0%

13

Delinquency for loans excluded from ASC 310-30 is shown in the following tables at September 30, 2017 and December 31, 2016, respectively:

	September 30, 2017
					Greater						Total		Loans > 90
	30-59		60-89		than 90						non		days past
	days  past		days past		days past		Total  past				310-30		due and		Non-
	due		due		due		due		Current		loans		still accruing		accrual
Loans excluded from ASC 310-30:
Commercial:
Commercial and industrial	$	715	$	200	$	1,393	$	2,308	$	1,284,047	$	1,286,355	$	150	$	3,783
Owner occupied commercial real estate		1,667		573		49		2,289		273,866		276,155		—		2,829
Agriculture		49		8		689		746		131,401		132,147		—		2,109
Energy		—		—		3,551		3,551		77,800		81,351		—		3,551
Total commercial		2,431		781		5,682		8,894		1,767,114		1,776,008		150		12,272
Commercial real estate non-owner occupied:
Construction		—		—		190		190		101,406		101,596		—		190
Acquisition/development		330		—		—		330		14,115		14,445		—		—
Multifamily		—		—		—		—		40,241		40,241		—		—
Non-owner occupied		653		—		—		653		324,921		325,574		—		607
Total commercial real estate		983		—		190		1,173		480,683		481,856		—		797
Residential real estate:
Senior lien		587		943		1,474		3,004		652,339		655,343		—		5,354
Junior lien		86		—		32		118		55,493		55,611		—		534
Total residential real estate		673		943		1,506		3,122		707,832		710,954		—		5,888
Consumer		186		76		6		268		25,861		26,129		6		200
Total loans excluded from ASC 310-30	$	4,273	$	1,800	$	7,384	$	13,457	$	2,981,490	$	2,994,947	$	156	$	19,157

	December 31, 2016
					Greater						Total		Loans > 90
	30-59		60-89		than 90						non		days past
	days past		days past		days past		Total  past				310-30		due and		Non-
	due		due		due		due		Current		loans		still accruing		accrual
Loans excluded from ASC 310-30:
Commercial:
Commercial and industrial	$	3,134	$	4,009	$	1,078	$	8,221	$	1,066,475	$	1,074,696	$	—	$	8,688
Owner occupied commercial real estate		583		216		56		855		220,689		221,544		—		2,056
Agriculture		501		—		—		501		134,136		134,637		—		1,905
Energy		2		—		6,548		6,550		83,723		90,273		—		12,645
Total commercial		4,220		4,225		7,682		16,127		1,505,023		1,521,150		—		25,294
Commercial real estate non-owner occupied:
Construction		—		—		—		—		90,314		90,314		—		—
Acquisition/development		—		—		—		—		13,306		13,306		—		—
Multifamily		—		—		—		—		24,954		24,954		—		—
Non-owner occupied		—		—		28		28		309,040		309,068		—		66
Total commercial real estate		—		—		28		28		437,614		437,642		—		66
Residential real estate:
Senior lien		888		645		1,458		2,991		672,699		675,690		—		4,522
Junior lien		115		61		22		198		52,473		52,671		—		654
Total residential real estate		1,003		706		1,480		3,189		725,172		728,361		—		5,176
Consumer		83		8		—		91		27,825		27,916		—		181
Total loans excluded from ASC 310-30	$	5,306	$	4,939	$	9,190	$	19,435	$	2,695,634	$	2,715,069	$	—	$	30,717

Loans are considered past due or delinquent when the contractual principal or interest due in accordance with the terms of the loan agreement remains unpaid after the due date of the scheduled payment. Pooled loans accounted for under ASC 310-30 that are 90 days or more past due and still accreting are generally considered to be performing and are included in loans 90 days or more past due and still accruing. Non-accrual loans include troubled debt restructurings on non-accrual status.

Non-accrual loans excluded from the scope of ASC 310-30 totaled $19.2 million at September 30, 2017, decreasing $11.6 million, or 37.6% from December 31, 2016 due to charge-offs of two previously identified energy loans totaling $6.1 million and one previously identified commercial and industrial loan totaling $2.5 million. In addition, one previously identified energy loan of $2.4 million was placed back on accrual during the third quarter of 2017. 

14

The Company’s internal risk rating system uses a series of grades which reflect its assessment of the credit quality of loans based on an analysis of the borrower's financial condition, liquidity and ability to meet contractual debt service requirements. Loans that are perceived to have acceptable risk are categorized as “Pass” loans. “Special mention” loans represent loans that have potential credit weaknesses that deserve close attention. Special mention loans include borrowers that have potential weaknesses or unwarranted risks that, unless corrected, may threaten the borrower's ability to meet debt service requirements. However, these borrowers are still believed to have the ability to respond to and resolve the financial issues that threaten their financial situation. Loans classified as “Substandard” have a well-defined credit weakness and are inadequately protected by the current paying capacity of the obligor or of the collateral pledged, if any. Although these loans are identified as potential problem loans, they may never become non-performing. Substandard loans have a distinct possibility of loss if the deficiencies are not corrected. “Doubtful” loans are loans that management believe the collection of payments in accordance with the terms of the loan agreement are highly questionable and improbable. Doubtful loans are deemed impaired and put on non-accrual status.

Credit exposure for all loans as determined by the Company’s internal risk rating system was as follows as of September 30, 2017 and December 31, 2016, respectively:

	September 30, 2017
			Special
	Pass		mention		Substandard		Doubtful		Total
Loans excluded from ASC 310-30:
Commercial:
Commercial and industrial	$	1,259,680	$	10,968	$	15,092	$	615	$	1,286,355
Owner occupied commercial real estate		252,816		17,154		5,925		260		276,155
Agriculture		108,832		21,206		2,076		33		132,147
Energy		75,356		2,444		3,551		—		81,351
Total commercial		1,696,684		51,772		26,644		908		1,776,008
Commercial real estate non-owner occupied:
Construction		101,406		—		190		—		101,596
Acquisition/development		14,445		—		—		—		14,445
Multifamily		38,088		—		2,153		—		40,241
Non-owner occupied		321,160		2,926		1,488		—		325,574
Total commercial real estate		475,099		2,926		3,831		—		481,856
Residential real estate:
Senior lien		649,317		248		5,615		163		655,343
Junior lien		54,705		—		906		—		55,611
Total residential real estate		704,022		248		6,521		163		710,954
Consumer		25,925		1		203		—		26,129
Total loans excluded from ASC 310-30	$	2,901,730	$	54,947	$	37,199	$	1,071	$	2,994,947
Loans accounted for under ASC 310-30:
Commercial	$	24,706	$	1,125	$	6,044	$	—	$	31,875
Commercial real estate non-owner occupied		51,780		1,074		26,944		—		79,798
Residential real estate		10,618		1,094		1,708		—		13,420
Consumer		343		10		150		—		503
Total loans accounted for under ASC 310-30	$	87,447	$	3,303	$	34,846	$	—	$	125,596
Total loans	$	2,989,177	$	58,250	$	72,045	$	1,071	$	3,120,543

15

	December 31, 2016
			Special
	Pass		mention		Substandard		Doubtful		Total
Loans excluded from ASC 310-30:
Commercial:
Commercial and industrial	$	1,041,326	$	7,243	$	25,636	$	491	$	1,074,696
Owner occupied commercial real estate		202,036		9,371		10,137		—		221,544
Agriculture		123,809		8,922		1,906		—		134,637
Energy		77,619		—		7,811		4,843		90,273
Total commercial		1,444,790		25,536		45,490		5,334		1,521,150
Commercial real estate non-owner occupied:
Construction		90,099		—		215		—		90,314
Acquisition/development		10,758		2,548		—		—		13,306
Multifamily		22,495		238		2,221		—		24,954
Non-owner occupied		300,922		5,895		2,251		—		309,068
Total commercial real estate		424,274		8,681		4,687		—		437,642
Residential real estate:
Senior lien		669,148		1,215		5,316		11		675,690
Junior lien		51,250		178		1,243		—		52,671
Total residential real estate		720,398		1,393		6,559		11		728,361
Consumer		27,669		59		188		—		27,916
Total loans excluded from ASC 310-30	$	2,617,131	$	35,669	$	56,924	$	5,345	$	2,715,069
Loans accounted for under ASC 310-30:
Commercial	$	27,436	$	610	$	11,234	$	—	$	39,280
Commercial real estate non-owner occupied		38,895		967		45,520		3,768		89,150
Residential real estate		12,477		1,327		2,720		—		16,524
Consumer		721		17		160		—		898
Total loans accounted for under ASC 310-30	$	79,529	$	2,921	$	59,634	$	3,768	$	145,852
Total loans	$	2,696,660	$	38,590	$	116,558	$	9,113	$	2,860,921

Non 310-30 special mention loans increased $19.3 million from December 31, 2016 due to upgrades from substandard and doubtful within the commercial and industrial and energy sectors and downgrades from pass within the agriculture and owner-occupied commercial real estate sectors. Non 310-30 substandard loans decreased $19.7 million from December 31, 2016 primarily due to paydowns, payoffs and upgrades to special mention and pass within the commercial and industrial, owner-occupied commercial real estate and energy sectors. Non 310-30 doubtful loans decreased $4.3 million from December 31, 2016 due to energy loan charge-offs during the period.

Impaired Loans

Loans are considered to be impaired when it is probable that the Company will not be able to collect all amounts due in accordance with the contractual terms of the loan agreement. Impaired loans are comprised of loans excluded from ASC 310-30 on non-accrual status, loans in bankruptcy, and troubled debt restructurings (“TDRs”) described below. If a specific allowance is warranted based on the borrower’s overall financial condition, the specific allowance is calculated based on discounted cash flows using the loan’s initial contractual effective interest rate or the fair value of the collateral less selling costs for collateral dependent loans. At September 30, 2017, the Company measured $17.4 million of impaired loans based on the fair value of the collateral less selling costs and $2.5 million of impaired loans using discounted cash flows and the loan’s initial contractual effective interest rate. Impaired loans totaling $8.6 million that individually were less than $250 thousand each, were measured through the general ALL reserves due to their relatively small size.

At September 30, 2017 and December 31, 2016, the Company’s recorded investments in impaired loans were $28.5 million and $38.3 million, respectively, of which $7.6 million and $5.8 million, respectively, were accruing TDRs. Impaired loans at September 30, 2017 were primarily comprised of six relationships totaling $12.3 million. Two of the relationships were in the energy sector totaling $6.0 million, two of the relationships were in the commercial and industrial sector totaling $3.0 million, one relationship was in the owner-occupied commercial real estate sector totaling $2.0 million and one relationship was in the agricultural sector totaling $1.3 million. Impaired loans had a collective related allowance for loan losses allocated to them of $1.1 million and $2.4 million at September 30, 2017 and December 31, 2016, respectively.

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Additional information regarding impaired loans at September 30, 2017 and December 31, 2016 is set forth in the table below:

	September 30, 2017						December 31, 2016
					Allowance						Allowance
	Unpaid				for loan		Unpaid				for loan
	principal		Recorded		losses		principal		Recorded		losses
	balance		investment		allocated		balance		investment		allocated
With no related allowance recorded:
Commercial:
Commercial and industrial	$	5,762	$	4,409	$	—	$	8,671	$	7,495	$	—
Owner occupied commercial real estate		2,198		2,059		—		3,350		3,197		—
Agriculture		1,534		1,294		—		2,044		1,987		—
Energy		9,367		5,995		—		17,142		6,105		—
Total commercial		18,861		13,757		—		31,207		18,784		—
Commercial real estate non-owner occupied:
Construction		215		190		—		—		—		—
Acquisition/development		—		—		—		—		—		—
Multifamily		30		30		—		33		33		—
Non-owner occupied		917		864		—		394		343		—
Total commercial real estate		1,162		1,084		—		427		376		—
Residential real estate:
Senior lien		597		572		—		1,551		1,426		—
Junior lien		—		—		—		54		51		—
Total residential real estate		597		572		—		1,605		1,477		—
Consumer		—		—		—		4		4		—
Total impaired loans with no related allowance recorded	$	20,620	$	15,413	$	—	$	33,243	$	20,641	$	—
With a related allowance recorded:
Commercial:
Commercial and industrial	$	4,200	$	1,612	$	617	$	3,495	$	3,464	$	492
Owner occupied commercial real estate		2,631		2,450		264		957		642		2
Agriculture		932		895		33		—		—		—
Energy		—		—		—		11,216		6,548		1,866
Total commercial		7,763		4,957		914		15,668		10,654		2,360
Commercial real estate non-owner occupied:
Construction		—		—		—		—		—		—
Acquisition/development		—		—		—		—		—		—
Multifamily		—		—		—		—		—		—
Non-owner occupied		214		207		1		261		255		1
Total commercial real estate		214		207		1		261		255		1
Residential real estate:
Senior lien		6,993		6,282		186		5,646		5,016		31
Junior lien		1,641		1,398		10		1,781		1,532		14
Total residential real estate		8,634		7,680		196		7,427		6,548		45
Consumer		207		202		1		188		184		2
Total impaired loans with a related allowance recorded	$	16,818	$	13,046	$	1,112	$	23,544	$	17,641	$	2,408
Total impaired loans	$	37,438	$	28,459	$	1,112	$	56,787	$	38,282	$	2,408

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The table below shows additional information regarding the average recorded investment and interest income recognized on impaired loans for the periods presented:

	For the three months ended
	September 30, 2017				September 30, 2016
	Average recorded investment		Interest income recognized		Average recorded investment		Interest income recognized
With no related allowance recorded:
Commercial:
Commercial and industrial	$	4,272	$	40	$	9,589	$	39
Owner occupied commercial real estate		2,069		19		1,513		22
Agriculture		1,349		—		1,845		—
Energy		7,960		116		17,142		—
Total commercial		15,650		175		30,089		61
Commercial real estate non-owner occupied:
Construction		—		—		—		—
Acquisition/development		—		—		—		—
Multifamily		—		—		—		—
Non-owner occupied		871		5		363		6
Total commercial real estate		871		5		363		6
Residential real estate:
Senior lien		574		—		1,555		5
Junior lien		—		—		53		—
Total residential real estate		574		—		1,608		5
Consumer		—		—		5		—
Total impaired loans with no related allowance recorded	$	17,095	$	180	$	32,065	$	72
With a related allowance recorded:
Commercial:
Commercial and industrial	$	3,692	$	—	$	35	$	—
Owner occupied commercial real estate		2,456		5		730		8
Agriculture		896		1		176		1
Energy		—		—		6,436		—
Total commercial		7,044		6		7,377		9
Commercial real estate non-owner occupied:
Construction		190		—		—		—
Acquisition/development		—		—		—		—
Multifamily		30		—		34		—
Non-owner occupied		209		2		265		3
Total commercial real estate		429		2		299		3
Residential real estate:
Senior lien		6,334		20		4,508		25
Junior lien		1,409		12		1,696		16
Total residential real estate		7,743		32		6,204		41
Consumer		206		—		209		—
Total impaired loans with a related allowance recorded	$	15,422	$	40	$	14,089	$	53
Total impaired loans	$	32,517	$	220	$	46,154	$	125

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	For the nine months ended
	September 30, 2017				September 30, 2016
	Average recorded investment		Interest income recognized		Average recorded investment		Interest income recognized
With no related allowance recorded:
Commercial:
Commercial and industrial	$	5,802	$	113	$	10,511	$	177
Owner occupied commercial real estate		2,116		60		1,539		70
Agriculture		1,470		—		1,845		—
Energy		9,035		116		20,327		—
Total Commercial		18,423		289		34,222		247
Commercial real estate non-owner occupied:
Construction		—		—		—		—
Acquisition/development		—		—		—		—
Multifamily		—		—		—		—
Non-owner occupied		886		17		376		16
Total commercial real estate		886		17		376		16
Residential real estate:
Senior lien		585		—		1,578		16
Junior lien		—		—		54		1
Total residential real estate		585		—		1,632		17
Consumer		—		—		5		—
Total impaired loans with no related allowance recorded	$	19,894	$	306	$	36,235	$	280
With a related allowance recorded:
Commercial:
Commercial and industrial	$	4,363	$	—	$	44	$	—
Owner occupied commercial real estate		2,479		15		761		15
Agriculture		907		4		178		4
Energy		—		—		6,377		—
Total Commercial		7,749		19		7,360		19
Commercial real estate non-owner occupied:
Construction		190		—		—		—
Acquisition/development		—		—		—		—
Multifamily		31		1		35		1
Non-owner occupied		216		7		272		11
Total commercial real estate		437		8		307		12
Residential real estate:
Senior lien		6,494		60		4,620		70
Junior lien		1,444		36		1,733		47
Total residential real estate		7,938		96		6,353		117
Consumer		218		—		212		—
Total impaired loans with a related allowance recorded	$	16,342	$	123	$	14,232	$	148
Total impaired loans	$	36,236	$	429	$	50,467	$	428

Interest income recognized on impaired loans noted in the table above primarily represents interest earned on accruing troubled debt restructurings. Interest income recognized on impaired loans during the three months ended September 30, 2017 and 2016 was $0.2 million and $0.1 million, respectively. Interest income recognized on impaired loans during the nine months ended September 30, 2017 and 2016 was $0.4 million and $0.4 million, respectively.

Troubled debt restructurings

It is the Company’s policy to review each prospective credit in order to determine the appropriateness and the adequacy of security or collateral prior to making a loan. In the event of borrower default, the Company seeks recovery in compliance with lending laws, the respective loan agreements and credit monitoring and remediation procedures that may include restructuring a loan to provide a concession by the Company to the borrower from their original terms due to borrower financial difficulties in order to facilitate repayment. Additionally, if a borrower’s repayment obligation has been discharged by a court, and that debt has not been reaffirmed by the borrower, regardless of past due status, the loan is considered to be a TDR.

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Non-accruing TDRs at September 30, 2017 and December 31, 2016 totaled $9.6 million and $16.7 million, respectively.

During the nine months ended September 30, 2017, the Company restructured eight loans with a recorded investment of $4.0 million at September 30, 2017. Substantially all of the loan modifications were a reduction of the principal payment, a reduction in interest rate, or an extension of term. Loan modifications to loans accounted for under ASC 310-30 are not considered TDRs. The table below provides additional information related to accruing TDRs at September 30, 2017 and December 31, 2016:

	September 30, 2017
	Recorded		Average year-to-date		Unpaid		Unfunded commitments
	investment		recorded investments		principal balance		to fund TDRs
Commercial	$	5,680	$	6,026	$	6,003	$	1,813
Commercial real estate non-owner occupied		470		499		522		—
Residential real estate		1,468		1,510		1,480		2
Consumer		2		4		2		—
Total	$	7,620	$	8,039	$	8,007	$	1,815

	December 31, 2016
	Recorded		Average year-to-date		Unpaid		Unfunded commitments
	investment		recorded investments		principal balance		to fund TDRs
Commercial	$	3,302	$	3,440	$	3,464	$	100
Commercial real estate non-owner occupied		538		572		590		—
Residential real estate		1,920		1,996		1,969		2
Consumer		7		9		7		—
Total	$	5,767	$	6,017	$	6,030	$	102

The following table summarizes the Company’s carrying value of non-accrual TDRs as of September 30, 2017 and December 31, 2016:

	September 30, 2017		December 31, 2016
Commercial	$	8,143	$	15,265
Commercial real estate non-owner occupied		—		—
Residential real estate		1,284		1,301
Consumer		173		142
Total non-accruing TDRs	$	9,600	$	16,708

At September 30, 2017 and December 31, 2016, the Company had $7.6 million and $5.8 million, respectively, of accruing TDRs that had been restructured from the original terms in order to facilitate repayment. Accrual of interest is resumed on loans that were on non-accrual only after the loan has performed sufficiently. The Company had one TDRthat was modified within the past twelve months and had defaulted on its restructured terms during the three months ended September 30, 2017, and four TDRs that were modified within the past twelve months and had defaulted on their restructured terms during the nine months ended September 30, 2017. The defaulted TDRs consisted of one energy loan totaling $6.7 million, two commercial and industrial loans totaling $0.7 million and one small residential loan. Non-accruing TDRs decreased $7.1 million from December 31, 2016 due to charge-offs within the commercial loan segment. The allowance for loan losses related to troubled debt restructurings on non-accrual status is determined by individual evaluation, including collateral adequacy, using the same process as loans on non-accrual status which are not classified as troubled debt restructurings.

During the three and nine months ended September 30, 2016, the Company had three and five TDRs that had been modified within the past 12 months that defaulted on their restructured terms, respectively. For purposes of this disclosure, the Company considers “default” to mean 90 days or more past due on principal or interest.

Loans accounted for under ASC 310-30

Loan pools accounted for under ASC Topic 310-30 are periodically re-measured to determine expected future cash flows. In determining the expected cash flows, the timing of cash flows and prepayment assumptions for smaller homogeneous loans are based on statistical models that take into account factors such as the loan interest rate, credit profile of the borrowers, the years in which the loans were originated, and whether the loans are fixed or variable rate loans. Prepayments may be assumed on loans if circumstances

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specific to that loan warrant a prepayment assumption. The re-measurement of loans accounted for under ASC 310-30 resulted in the following changes in the carrying amount of accretable yield during the nine months ended September 30, 2017 and 2016:

	September 30, 2017		September 30, 2016
Accretable yield beginning balance	$	60,476	$	84,194
Reclassification from non-accretable difference		9,697		10,611
Reclassification to non-accretable difference		(907)		(4,479)
Accretion		(17,718)		(26,653)
Accretable yield ending balance	$	51,548	$	63,673

Below is the composition of the net book value for loans accounted for under ASC 310-30 at September 30, 2017 and December 31, 2016:

	September 30, 2017		December 31, 2016
Contractual cash flows	$	499,652	$	537,611
Non-accretable difference		(322,508)		(331,283)
Accretable yield		(51,548)		(60,476)
Loans accounted for under ASC 310-30	$	125,596	$	145,852

Note 5 Allowance for Loan Losses

The tables below detail the Company’s allowance for loan losses (“ALL”) and recorded investment in loans as of and for the three and nine months ended September 30, 2017 and 2016:

	Three months ended  September 30, 2017
			Non-owner
			occupied
			commercial		Residential
	Commercial		real estate		real estate		Consumer		Total
Beginning balance	$	24,656	$	5,934	$	4,067	$	302	$	34,959
Non 310-30 beginning balance		24,656		5,800		4,067		294		34,817
Charge-offs		(8,618)		—		(16)		(209)		(8,843)
Recoveries		11		—		14		26		51
Provision		4,063		(280)		77		162		4,022
Non 310-30 ending balance		20,112		5,520		4,142		273		30,047
ASC 310-30 beginning balance		—		134		—		8		142
Charge-offs		—		—		—		—		—
Recoveries		—		—		—		—		—
(Recoupment) provision		—		(134)		—		(8)		(142)
ASC 310-30 ending balance		—		—		—		—		—
Ending balance	$	20,112	$	5,520	$	4,142	$	273	$	30,047

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	Three months ended  September 30, 2016
			Non-owner
			occupied
			commercial		Residential
	Commercial		real estate		real estate		Consumer		Total
Beginning balance	$	29,982	$	5,368	$	4,504	$	252	$	40,106
Non 310-30 beginning balance		29,980		5,157		4,504		234		39,875
Charge-offs		(17,204)		—		(166)		(170)		(17,540)
Recoveries		19		8		84		57		168
Provision		5,112		178		(177)		162		5,275
Non 310-30 ending balance		17,907		5,343		4,245		283		27,778
ASC 310-30 beginning balance		2		211		—		18		231
Charge-offs		—		—		—		(6)		(6)
Recoveries		—		—		—		—		—
Provision (recoupment)		27		3		—		(12)		18
ASC 310-30 ending balance		29		214		—		—		243
Ending balance	$	17,936	$	5,557	$	4,245	$	283	$	28,021

	Nine months ended September 30, 2017
			Non-owner
			occupied
			commercial		Residential
	Commercial		real estate		real estate		Consumer		Total
Beginning balance	$	18,821	$	5,642	$	4,387	$	324	$	29,174
Non 310-30 beginning balance		18,821		5,422		4,387		319		28,949
Charge-offs		(8,638)		—		(26)		(510)		(9,174)
Recoveries		52		20		127		148		347
Provision		9,877		78		(346)		316		9,925
Non 310-30 ending balance		20,112		5,520		4,142		273		30,047
ASC 310-30 beginning balance		—		220		—		5		225
Charge-offs		—		—		—		—		—
Recoveries		—		—		—		—		—
Recoupment		—		(220)		—		(5)		(225)
ASC 310-30 ending balance		—		—		—		—		—
Ending balance	$	20,112	$	5,520	$	4,142	$	273	$	30,047
Ending allowance balance attributable to:
Non 310-30 loans individually evaluated for impairment	$	914	$	2	$	195	$	1	$	1,112
Non 310-30 loans collectively evaluated for impairment		19,198		5,518		3,947		272		28,935
ASC 310-30 loans		—		—		—		—		—
Total ending allowance balance	$	20,112	$	5,520	$	4,142	$	273	$	30,047
Loans:
Non 310-30 individually evaluated for impairment	$	18,714	$	1,291	$	8,252	$	202	$	28,459
Non 310-30 collectively evaluated for impairment		1,757,294		480,565		702,702		25,927		2,966,488
ASC 310-30 loans		31,875		79,798		13,420		503		125,596
Total loans	$	1,807,883	$	561,654	$	724,374	$	26,632	$	3,120,543

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	Nine months ended September 30, 2016
			Non-owner
			occupied
			commercial		Residential
	Commercial		real estate		real estate		Consumer		Total
Beginning balance	$	17,261	$	4,166	$	5,281	$	411	$	27,119
Non 310-30 beginning balance		16,473		3,939		5,245		385		26,042
Charge-offs		(20,684)		(276)		(363)		(558)		(21,881)
Recoveries		43		73		106		242		464
Provision		22,075		1,607		(743)		214		23,153
Non 310-30 ending balance		17,907		5,343		4,245		283		27,778
ASC 310-30 beginning balance		788		227		36		26		1,077
Charge-offs		—		(41)		—		(6)		(47)
Recoveries		—		—		—		—		—
(Recoupment) provision		(759)		28		(36)		(20)		(787)
ASC 310-30 ending balance		29		214		—		—		243
Ending balance	$	17,936	$	5,557	$	4,245	$	283	$	28,021
Ending allowance balance attributable to:
Non 310-30 loans individually evaluated for impairment	$	1,462	$	1	$	34	$	2	$	1,499
Non 310-30 loans collectively evaluated for impairment		16,445		5,342		4,211		281		26,279
ASC 310-30 loans		29		214		—		—		243
Total ending allowance balance	$	17,936	$	5,557	$	4,245	$	283	$	28,021
Loans:
Non 310-30 individually evaluated for impairment	$	26,743	$	654	$	6,995	$	210	$	34,602
Non 310-30 collectively evaluated for impairment		1,450,524		452,594		699,796		27,376		2,630,290
ASC 310-30 loans		43,339		95,487		17,654		1,183		157,663
Total loans	$	1,520,606	$	548,735	$	724,445	$	28,769	$	2,822,555

In evaluating the loan portfolio for an appropriate ALL level, non-impaired loans that were not accounted for under ASC 310-30 were grouped into segments based on broad characteristics such as primary use and underlying collateral. Within the segments, the portfolio was further disaggregated into classes of loans with similar attributes and risk characteristics for purposes of applying loss ratios and determining applicable subjective adjustments to the ALL. The application of subjective adjustments was based upon qualitative risk factors, including economic trends and conditions, industry conditions, asset quality, loss trends, lending management, portfolio growth and loan review/internal audit results.

Net charge-offs on non 310-30 loans during the three and nine months ended September 30, 2017 were $8.8 million and $8.8 million, respectively. Management's evaluation of credit quality resulted in a provision for loan losses on the non 310-30 loans of $4.0 million and $9.9 million during the three and nine months ended September 30, 2017, respectively. Provision for the three months ended September 30, 2017 included $2.9 million related to one non-accrual energy loan and general reserves on net loan growth. Provision for the nine months ended September 30, 2017 included $6.3 million of specific reserves on two previously identified energy loans and one previously identified commercial and industrial loan. The remaining provision for the nine months ended September 30, 2017 was for general reserves on net loan growth.

During the nine months ended September 30, 2017, the Company re-estimated the expected cash flows of the loan pools accounted for under ASC 310-30. The re-measurement resulted in a net recoupment of $142 thousand and $225 thousand for the three and nine months ended September 30, 2017, respectively. The net recoupment was primarily due to a recoupment of $134 thousand in the non-owner occupied commercial real estate segment during the three months ended September 30, 2017, and primarily due to a recoupment of $220 thousand in the non-owner occupied commercial real estate segment for the nine months ended September 30, 2017.

Net charge-offs on non 310-30 loans during the three and nine months ended September 30, 2016 were $17.4 million and $21.4 million, respectively. Management’s evaluation resulted in a provision for loan losses on the non 310-30 loans of $5.3 million and

23

$23.2 million during the three and nine months ended September 30, 2016, respectively. The provision was driven by loan growth and $3.9 million and $19.0 million of provision against the energy portfolio for the three and nine months ended September 30, 2016, respectively.

During the nine months ended September 30, 2016, the Company re-estimated the expected cash flows of the loan pools accounted for under ASC 310-30. The re-measurement resulted in a net provision of $18 thousand and a net recoupment of $787 thousand for the three and nine months ended September 30, 2016, respectively, which was comprised primarily of a provision of $27 thousand in the commercial segment, offset by recoupments of $12 thousand in the consumer segment for the three months ended September 30, 2016, and comprised primarily of a recoupment of $759 thousand in the commercial segment for the nine months ended September 30, 2016.

Note 6 Other Real Estate Owned

The table below details the OREO activity during the nine months ended September 30, 2017 and 2016:

	For the nine months ended September 30,
	2017		2016
Beginning balance	$	15,662	$	20,814
Transfers from loan portfolio, at fair value		760		4,755
Impairments		(766)		(262)
Sales, net		(3,326)		(4,107)
Ending balance	$	12,330	$	21,200

The Company did not have any minority interest in participated other real estate owned at September 30, 2017. At December 31, 2016, OREO balances excluded $1.6 million of the Company’s minority interests in OREO, which are held by outside banks where the Company was not the lead bank and does not have a controlling interest. The Company maintains a receivable in other assets for these minority interests. Included in Sales, net are net gains of $2.3 million and $4.1 million for the nine months ended September 30, 2017 and 2016, respectively.

Note 7 Borrowings

As of September 30, 2017 and December 31, 2016, the Company sold securities under agreements to repurchase totaling $92.8 million and $92.0 million, respectively, and none were for periods longer than one day. The Company pledged mortgage-backed securities with a fair value of approximately $126.5 million and $99.1 million as of September 30, 2017 and December 31, 2016, respectively, for these agreements. The Company monitors collateral levels on a continuous basis and may be required to provide additional collateral based on the fair value of the underlying securities. As of September 30, 2017 and December 31, 2016, the Company had $33.7 million and $7.0 million of excess collateral pledged for repurchase agreements, respectively. The repurchase agreements are subject to a master netting arrangement; however, the Company has not offset any of the amounts presented in the consolidated financial statements.

As a member of the FHLB, the Bank has access to a line of credit and term financing from the FHLB with total available credit of $787.4 million at September 30, 2017. At September 30, 2017 and December 31, 2016, the Bank had $129.1 million and $25.0 million in term advances from the FHLB, respectively. The term advances have fixed interest rates of 1.31% - 2.33%, with maturity dates of 2018 - 2020. The Bank had investment securities pledged as collateral for FHLB advances in the amount of $27.6 million at September 30, 2017 and $28.8 million at December 31, 2016. Interest expense related to FHLB advances totaled $0.6 million and $1.3 million for the three and nine months ended September 30, 2017, respectively, and $0.2 million and $0.5 million for the three and nine months ended September 30, 2016, respectively.

Note 8 Regulatory Capital

As a bank holding company, the Company is subject to regulatory capital adequacy requirements implemented by the Federal Reserve. The federal banking agencies have risk-based capital adequacy regulations intended to provide a measure of capital adequacy that reflects the degree of risk associated with a banking organization’s operations. Under these regulations, assets are assigned to one of several risk categories, and nominal dollar amounts of assets and credit equivalent amounts of off-balance-sheet items are multiplied by a risk adjustment percentage for the category.

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The new Basel III rules, effective January 1, 2015, changed the components of regulatory capital and changed the way in which risk ratings are assigned to various categories of bank assets. Also, a new Tier I common risk-based ratio was defined. Under the Basel III requirements, at September 30, 2017, the Company and the Bank met all capital requirements and the Bank had regulatory capital ratios in excess of the levels established for well-capitalized institutions.

At September 30, 2017 and December 31, 2016, the Bank met the requirements to be considered “well capitalized” under the regulatory framework for prompt corrective action. To be categorized as “well-capitalized”, the Bank must maintain capital ratios as set forth in the table below. The following table sets forth the capital ratios of the Company and the Bank at September 30, 2017 and December 31, 2016.

	September 30, 2017
				Required to be			Required to be
				well capitalized under			considered
				prompt corrective			adequately
	Actual			action provisions			capitalized
	Ratio	Amount		Ratio	Amount		Ratio	Amount
Tier 1 leverage ratio:
Consolidated	10.4%	$	482,758	N/A		N/A	4.0%	$	185,124
NBH Bank	8.5%		390,995	5.0%	$	230,646	4.0%		184,517
Common equity tier 1 risk-based capital:
Consolidated	13.5%	$	482,758	N/A		N/A	4.5%	$	208,265
NBH Bank	11.0%		390,995	6.5%	$	299,840	4.5%		207,582
Tier 1 risk-based capital ratio:
Consolidated	13.5%	$	482,758	N/A		N/A	6.0%	$	214,123
NBH Bank	11.0%		390,995	8.0%	$	284,224	6.0%		213,168
Total risk-based capital ratio:
Consolidated	14.4%	$	513,130	N/A		N/A	8.0%	$	285,498
NBH Bank	11.9%		421,368	10.0%	$	355,280	8.0%		284,224

	December 31, 2016
				Required to be			Required to be
				well capitalized under			considered
				prompt corrective			adequately
	Actual			action provisions			capitalized
	Ratio	Amount		Ratio	Amount		Ratio	Amount
Tier 1 leverage ratio:
Consolidated	10.4%	$	470,259	N/A		N/A	4.0%	$	181,019
NBH Bank	8.6%		389,189	4.5%	$	202,903	4.0%		180,358
Common equity tier 1 risk-based capital:
Consolidated	14.2%	$	470,259	N/A		N/A	4.5%	$	203,647
NBH Bank	11.8%		389,189	6.5%	$	293,082	4.5%		202,903
Tier 1 risk-based capital ratio:
Consolidated	14.2%	$	470,259	N/A		N/A	6.0%	$	199,467
NBH Bank	11.8%		389,189	8.0%	$	264,596	6.0%		198,447
Total risk-based capital ratio:
Consolidated	15.0%	$	499,759	N/A		N/A	8.0%	$	265,955
NBH Bank	12.7%		418,689	10.0%	$	330,745	8.0%		264,596

Note 9 Stock-based Compensation and Benefits

The Company provides stock-based compensation in accordance with shareholder-approved plans. During the second quarter of 2014, shareholders approved the 2014 Omnibus Incentive Plan (the "2014 Plan"). The 2014 Plan replaces the NBH Holdings Corp. 2009 Equity Incentive Plan (the "Prior Plan"), pursuant to which the Company granted equity awards prior to the approval of the 2014 Plan. Pursuant to the 2014 Plan, the Compensation Committee of the Board of Directors has the authority to grant, from time to time, awards of stock options, stock appreciation rights, restricted stock, restricted stock units, performance units, other stock-based awards, or any combination thereof to eligible persons.

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Stock options

The Company issued stock options during the nine months ended September 30, 2017 and 2016, which are primarily time-vesting with 1/3 vesting on each of the first, second and third anniversary of the date of grant or date of hire.

The expense associated with the awarded stock options was measured at fair value using a Black-Scholes option-pricing model. The outstanding unvested option awards vest on a graded basis over 1-3 years of continuous service and have 7-10 year contractual terms.

The following table summarizes stock option activity for the nine months ended September 30, 2017:

				Weighted
				average
		Weighted		remaining
		average		contractual	Aggregate
		exercise		term in	intrinsic
	Options	price		years	value
Outstanding at December 31, 2016	2,185,922	$	19.81	4.85	$	7,753
Granted	100,401		33.98
Exercised	(598,728)		19.90
Forfeited	(26,455)		22.11
Outstanding at September 30, 2017	1,661,140	$	20.62	4.25	$	25,042
Options exercisable at September 30, 2017	1,425,900	$	19.82	3.52	$	22,829
Options vested and expected to vest	1,644,451	$	20.55	4.21	$	24,905

Stock option expense is a component of salaries and benefits in the consolidated statements of operations and totaled $0.1 million and $0.2 million for the three months ended September 30, 2017 and 2016, respectively, and $0.5 million and $0.5 million for the nine months ended September 30, 2017 and 2016, respectively. At September 30, 2017, there was $0.7 million of total unrecognized compensation cost related to non-vested stock options granted under the plans. The cost is expected to be recognized over a weighted average period of 2.2 years.

Restricted stock awards

The Company issued time based restricted stock awards during the nine months ended September 30, 2017 and 2016. The restricted stock awards vest over a range of a 1 - 3 year period. Restricted stock with time-based vesting was valued at the fair value of the shares on the date of grant as they are assumed to be held beyond the vesting period.

No market-based stock awards were granted during the nine months ended September 30, 2017. During nine months ended September 30, 2016, the Company granted market-based awards of 26,594 shares in accordance with the 2014 Plan. These shares have a five-year performance period. The restricted stock shares vest upon the later of the Company’s stock price achieving an established price goal during the performance period, and the third anniversary of the date of grant. The fair value of these awards was determined using a Monte Carlo Simulation at grant date. The grant date fair value of these awards was $11.28. As of September 30, 2017, the market-based performance condition had been met for these awards and the total unrecognized compensation cost related to non-vested awards totaled $0.2 million, and is expected to be recognized over a weighted average period of approximately 1.7 years.

Performance stock units

During the nine months ended September 30, 2017 and 2016, the Company granted 49,758 and 91,342 performance stock units in accordance with the 2014 Plan, respectively. These performance stock units granted represent initial target awards and do not reflect potential increases or decreases resulting from the final performance results, which are to be determined at the end of the three-year performance period (vesting date). The actual number of shares to be awarded at the end of the performance period will range from 0% - 150% of the initial target awards. 60% of the award is based on the Company’s cumulative earnings per share (EPS target) during the performance period, and 40% of the award is based on the Company’s cumulative total shareholder return (TSR target), or TSR, during the performance period. On the vesting date, the Company’s TSR will be compared to the respective TSRs of the companies comprising the KBW Regional Index at the grant date to determine the shares awarded. The fair value of the EPS target portion of the award was determined based on the closing stock price of the Company’s common stock on the grant date. The fair value of the TSR target portion of the award was determined using a Monte Carlo Simulation at the grant date. The weighted-average

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grant date fair value per unit for awards granted during the nine months ended September 30, 2017 of the EPS target portion and the TSR target portion was $34.04 and $32.06, respectively.

The following table summarizes restricted stock and performance stock activity during the nine months ended September 30, 2017:

		Weighted				Weighted
	Restricted	average grant-		Performance		average grant-
	shares	date fair value		stock units		date fair value
Unvested at December 31, 2016	499,271	$	15.82	85,295	$	18.22
Granted	66,471		33.43	49,758		33.22
Vested	(300,448)		15.31	—		—
Forfeited	(18,817)		17.53	(9,278)		21.46
Unvested at September 30, 2017	246,477	$	20.41	125,775	$	23.91

As of September 30, 2017, the total unrecognized compensation cost related to non-vested restricted stock awards and units totaled $3.6 million, and is expected to be recognized over a weighted average period of approximately 2.0 years. Expense related to non-vested restricted awards and units totaled $0.8 million and $0.7 million during the three months ended September 30, 2017 and 2016, respectively, and $2.3 million and $2.2 million during the nine months ended September 30, 2017 and 2016, respectively, and is a component of salaries and benefits in the Company’s consolidated statements of operations.

Employee Stock Purchase Plan

The 2014 Employee Stock Purchase Plan (“ESPP”) is intended to be a qualified plan within the meaning of Section 423 of the Internal Revenue Code of 1986 and allows eligible employees to purchase shares of common stock through payroll deductions up to a limit of $25,000 per calendar year and 2,000 shares per offering period. The price an employee pays for shares is 90.0% of the fair market value of Company common stock on the last day of the offering period. The offering period is the six-month period commencing on March 1 and September 1 of each year and ending on August 31 and February 28 (or February 29 in the case of a leap year) of each year. There are no vesting or other restrictions on the stock purchased by employees under the ESPP. Under the ESPP, the total number of shares of common stock reserved for issuance totaled 400,000 shares, of which 355,159 were available for issuance.

Under the ESPP, employees purchased 11,178 shares during the nine months ended September 30, 2017.

Note 10 Warrants

During the first quarter of 2017, 250,750 warrants were exercised in a non-cash transaction, representing the remaining outstanding warrants. The warrants were granted to certain lead shareholders of the Company at the time of the Company’s initial capital raise (2009-2010), all with an exercise price of $20.00 per share. Refer to the consolidated statements of changes in shareholders’ equity for additional detail.

Note 11 Common Stock

The Company had 26,802,964 and 26,386,583 shares of Class A common stock outstanding at September 30, 2017 and December 31, 2016, respectively. Additionally, the Company had 246,477 and 499,271 shares outstanding at September 30, 2017 and December 31, 2016, respectively, of restricted Class A common stock issued but not yet vested under the 2014 Omnibus Incentive Plan and the Prior Plan that are not included in shares outstanding until such time that they are vested; however, these shares do have voting and certain dividend rights during the vesting period.

On August 5, 2016, the Board of Directors authorized a new share repurchase program for up to $50.0 million from time to time in either the open market or through privately negotiated transactions. The remaining authorization under this program as of September 30, 2017 was $12.6 million.

Note 12 Income Per Share

The Company calculates income per share under the two-class method, as certain non-vested share awards contain non-forfeitable rights to dividends. As such, these awards are considered securities that participate in the earnings of the Company. Non-vested shares are discussed further in note 9.

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The Company had 26,802,964 and 26,282,224 shares of Class A common stock outstanding as of September 30, 2017 and 2016, respectively, exclusive of issued non-vested restricted shares. Certain stock options and non-vested restricted shares are potentially dilutive securities, but are not included in the calculation of diluted income per share because to do so would have been anti-dilutive for the three and nine months ended September 30, 2017 and 2016.

The following table illustrates the computation of basic and diluted income per share for the three and nine months ended September 30, 2017 and 2016:

	For the three months ended				For the nine months ended
	September 30, 2017		September 30, 2016		September 30, 2017		September 30, 2016
Net income	$	7,231	$	8,314	$	24,698	$	13,069
Less: income allocated to participating securities		(14)		(12)		(43)		(37)
Income allocated to common shareholders	$	7,217	$	8,302	$	24,655	$	13,032
Weighted average shares outstanding for basic income per common share		26,947,821		27,654,827		26,902,128		28,991,094
Dilutive effect of equity awards		680,913		173,747		723,304		92,885
Dilutive effect of warrants		—		70,182		11,243		27,343
Weighted average shares outstanding for diluted income per common share		27,628,734		27,898,756		27,636,675		29,111,322
Basic income per share	$	0.27	$	0.30	$	0.92	$	0.45
Diluted income per share	$	0.26	$	0.30	$	0.89	$	0.45

The Company had 1,661,140 and 2,669,859 outstanding stock options to purchase common stock at weighted average exercise prices of $20.62 and $19.82 per share at September 30, 2017 and 2016, respectively, which have time-vesting criteria, and as such, any dilution is derived only for the time frame in which the vesting criteria had been met and where the inclusion of those stock options is dilutive. Additionally, 250,750 warrants were exercised in a non-cash transaction during the first quarter of 2017, representing the remaining outstanding warrants to purchase shares of the Company’s common stock. The warrants had an exercise price of $20.00, which were in-the-money for purposes of the dilution calculations during the nine months ended September 30, 2017, and during the three and nine months ended September 30, 2016. The Company had 372,252 and 912,783 unvested restricted shares and units issued as of September 30, 2017 and 2016, respectively, which have performance, market and/or time-vesting criteria, and as such, any dilution is derived only for the time frame in which the vesting criteria had been met and where the inclusion of those restricted shares and units is dilutive.

Note 13 Income Taxes

The effective income tax rate for the three and nine months ended September 30, 2017 was 19.3% and 9.8%, respectively, compared to 16.9% and 18.0% for the three and nine months ended September 30, 2016, calculated based on a full year forecast method. The tax expense recorded for the three and nine months ended September 30, 2017 was lowered by a $0.1 million and $3.4 million discrete tax benefit from stock compensation activity during the respective periods. Without the discrete benefits, the three and nine months ended September 30, 2017 effective tax rate was 19.9% and 22.3%, respectively, and were comparable to the prior periods. The quarterly tax rate differs from the federal statutory rate primarily due to tax benefits from stock compensation activity, interest income from tax-exempt lending, bank-owned life insurance income, and the relationship of these items to pre-tax income. See management’s discussion and analysis for further information.

Note 14 Derivatives

Risk management objective of using derivatives

The Company is exposed to certain risks arising from both its business operations and economic conditions. The Company has established policies that neither carrying value nor fair value at risk should exceed established guidelines. The Company has designed strategies to confine these risks within the established limits and identify appropriate trade-offs in the financial structure of its balance sheet. These strategies include the use of derivative financial instruments to help achieve the desired balance sheet repricing structure while meeting the desired objectives of its clients. Currently, the Company employs certain interest rate swaps that are designated as fair value hedges as well as economic hedges. The Company manages a matched book with respect to its derivative instruments in order to minimize its net risk exposure resulting from such transactions.

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Fair values of derivative instrument on the balance sheet

The table below presents the fair value of the Company’s derivative financial instruments as well as their classification on the consolidated statements of financial condition as of September 30, 2017 and December 31, 2016.

Information about the valuation methods used to measure fair value is provided in note 16.

		Asset derivatives fair value					Liability derivatives fair value
	Balance Sheet	September 30,		December 31,		Balance Sheet	September 30,		December 31,
	location	2017		2016		location	2017		2016
Derivatives designated as hedging instruments:
Interest rate products	Other assets	$	8,165	$	9,528	Other liabilities	$	2,251	$	1,381
Total derivatives designated as hedging instruments		$	8,165	$	9,528		$	2,251	$	1,381
Derivatives not designated as hedging instruments:
Interest rate products	Other assets	$	3,014	$	1,900	Other liabilities	$	3,167	$	1,898
Interest rate lock commitments	Other assets		180		149	Other liabilities		2		6
Forward contracts	Other assets		53		138	Other liabilities		7		20
Total derivatives not designated as hedging instruments		$	3,247	$	2,187		$	3,176	$	2,085

Fair value hedges

Interest rate swaps designated as fair value hedges involve the receipt of variable-rate amounts from a counterparty in exchange for the Company making fixed-rate payments over the life of the agreements without the exchange of the underlying notional amount. As of September 30, 2017, the Company had 56 interest rate swaps with a notional amount of $398.1 million that were designated as fair value hedges of interest rate risk associated with the Company’s fixed-rate loans. As of December 31, 2016, the Company had 42 interest rate swaps with a notional amount of $313.0 million that were designated as fair value hedges. 

For derivatives designated and that qualify as fair value hedges, the gain or loss on the derivative as well as the offsetting loss or gain on the hedged item attributable to the hedged risk are recognized in earnings. The Company includes the gain or loss on the hedged items in the same line item as the offsetting loss or gain on the related derivatives. During the three and nine months ended September 30, 2017, the Company recognized a net loss of $0.4 million and $0.8 million, respectively, in non-interest income related to hedge ineffectiveness. During the three and nine months ended September 30 2016, the Company recognized a net loss of $48 thousand and $1.2 million, respectively, in non-interest income related to hedge ineffectiveness.

Non-designated hedges

Derivatives not designated as hedges are not speculative and consist of interest rate swaps with commercial banking clients that facilitate their respective risk management strategies. Interest rate swaps are simultaneously hedged by offsetting interest rate swaps that the Company executes with a third party, such that the Company minimizes its net risk exposure resulting from such transactions. As the interest rate swaps associated with this program do not meet the strict hedge accounting requirements, changes in the fair value of both the client swaps and the offsetting swaps are recognized directly in earnings. As of September 30, 2017, the Company had 45 matched interest rate swap transactions with an aggregate notional amount of $194.7 million related to this program. As of December 31, 2016, the Company had 36 matched interest rate swap transactions with an aggregate notional amount of $132.6 million related to this program.

As part of its mortgage banking activities, the Company enters into interest rate lock commitments, which are commitments to originate loans where the interest rate on the loan is determined prior to funding and the customers have locked into that interest rate. The Company then locks in the loan and interest rate with an investor and commits to deliver the loan if settlement occurs ("best efforts") or commits to deliver the locked loan in a binding ("mandatory") delivery program with an investor. Fair value changes of certain loans under interest rate lock commitments are hedged with forward sales contracts of MBS. Forward sales contracts of MBS are recorded at fair value with changes in fair value recorded in non-interest income. Interest rate lock commitments and commitments to deliver loans to investors are considered derivatives. The market value of interest rate lock commitments and best efforts contracts are not readily ascertainable with precision because they are not actively traded in stand-alone markets. The Company determines the fair value of interest rate lock commitments and delivery contracts by measuring the fair value of the underlying asset, which is

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impacted by current interest rates, taking into consideration the probability that the interest rate lock commitments will close or will be funded.

Certain additional risks arise from these forward delivery contracts in that the counterparties to the contracts may not be able to meet the terms of the contracts. The Company does not expect any counterparty to any MBS contract to fail to meet its obligation. Additional risks inherent in mandatory delivery programs include the risk that, if the Company fails to deliver the loans subject to interest rate risk lock commitments, it will still be obligated to “pair off” MBS to the counterparty. Should this be required, the Company could incur significant costs in acquiring replacement loans and such costs could have an adverse effect on the consolidated financial statements.

The fair value of the mortgage banking derivative is recorded as a freestanding asset or liability with the change in value being recognized in current earnings during the period of change.

The Company had 81 interest rate lock commitments with a notional value of $14.0 million and 13 forward contracts with a notional value of $18.1 million at September 30, 2017. At December 31, 2016, the Company had 78 interest rate lock commitments, with a notional value of $13.8 million, and eleven forward contracts with a notional value of $11.8 million.

Effect of derivative instruments on the consolidated statements of operations

The tables below present the effect of the Company’s derivative financial instruments on the consolidated statements of operations for the three and nine months ended September 30, 2017 and 2016:

	Location of gain (loss)	Amount of gain (loss) recognized in income on derivatives
Derivatives in fair value	recognized in income on	For the three months ended September 30,				For the nine months ended September 30,
hedging relationships	derivatives	2017		2016		2017		2016
Interest rate products	Other non-interest income	$	(128)	$	1,674	$	(2,233)	$	(15,740)
Total		$	(128)	$	1,674	$	(2,233)	$	(15,740)

	Location of gain (loss)	Amount of gain (loss) recognized in income on hedged items
	recognized in income on	For the three months ended September 30,				For the nine months ended September 30,
Hedged items	hedged items	2017		2016		2017		2016
Interest rate products	Other non-interest income	$	(283)	$	(1,722)	$	1,437	$	14,576
Total		$	(283)	$	(1,722)	$	1,437	$	14,576

	Location of gain (loss)	Amount of gain (loss) recognized in income on derivatives
Derivatives not designated	recognized in income on	For the three months ended September 30,				For the nine months ended September 30,
as hedging instruments	derivatives	2017		2016		2017		2016
Interest rate products	Other non-interest expense	$	(75)	$	(23)	$	(155)	$	(206)
Interest rate lock commitments	Gain on sale of mortgages, net		35		133		36		465
Forward contracts	Gain on sale of mortgages, net		57		60		(73)		(119)
Total		$	17	$	170	$	(192)	$	140

Credit-risk-related contingent features

The Company has agreements with its derivative counterparties that contain a provision where if the Company defaults on any of its indebtedness for reasons other than an error or omission of an administrative or operational nature, including default where repayment of the indebtedness has not been accelerated by the lender, then the Company could also be declared in default on its derivative obligations.

The Company also has agreements with certain of its derivative counterparties that contain a provision where if the Company fails to maintain its status as a well/adequately capitalized institution, then the counterparty has the right to terminate the derivative positions and the Company would be required to settle its obligations under the agreements.

As of September 30, 2017 and December 31, 2016, the termination value of derivatives in a net liability position related to these agreements was $1.4 million and $1.3 million, respectively, which includes accrued interest but excludes any adjustment for nonperformance risk. The Company has minimum collateral posting thresholds with certain of its derivative counterparties and as of September 30, 2017 and December 31, 2016, the Company had posted $2.3 million and $0.8 million, respectively, in eligible

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collateral. If the Company had breached any of these provisions at September 30, 2017, it could have been required to settle its obligations under the agreements at the termination value.

Note 15 Commitments and Contingencies

In the normal course of business, the Company enters into various off-balance sheet commitments to help meet the financing needs of clients. These financial instruments include commitments to extend credit, commercial and consumer lines of credit and standby letters of credit. The same credit policies are applied to these commitments as the loans on the consolidated statements of financial condition; however, these commitments involve varying degrees of credit risk in excess of the amount recognized in the consolidated statements of financial condition. At September 30, 2017 and December 31, 2016, the Company had loan commitments totaling $652.7 million and $602.2 million, respectively, and standby letters of credit that totaled $9.5 million and $13.5 million, respectively. The total amounts of unused commitments do not necessarily represent future credit exposure or cash requirements, as commitments often expire without being drawn upon. However, the contractual amount of these commitments, offset by any additional collateral pledged, represents the Company’s potential credit loss exposure.

Total unfunded commitments at September 30, 2017 and December 31, 2016 were as follows:

	September 30, 2017		December 31, 2016
Commitments to fund loans	$	168,632	$	149,391
Unfunded commitments under lines of credit		484,037		452,851
Commercial and standby letters of credit		9,516		13,532
Total unfunded commitments	$	662,185	$	615,774

Commitments to fund loans—Commitments to fund loans are legally binding agreements to lend to clients in accordance with predetermined contractual provisions providing there have been no violations of any conditions specified in the contract. These commitments are generally at variable interest rates and are for specific periods or contain termination clauses and may require the payment of a fee. The total amounts of unused commitments are not necessarily representative of future credit exposure or cash requirements, as commitments often expire without being drawn upon.

Unfunded commitments under lines of credit—In the ordinary course of business, the Company extends revolving credit to its clients. These arrangements may require the payment of a fee.

Commercial and standby letters of credit—As a provider of financial services, the Company routinely issues commercial and standby letters of credit, which may be financial standby letters of credit or performance standby letters of credit. These are various forms of “back-up” commitments to guarantee the performance of a client to a third party. While these arrangements represent a potential cash outlay for the Company, the majority of these letters of credit will expire without being drawn upon. Letters of credit are subject to the same underwriting and credit approval process as traditional loans, and as such, many of them have various forms of collateral securing the commitment, which may include real estate, personal property, receivables or marketable securities.

Contingencies

In the ordinary course of business, the Company and the Bank may be subject to litigation. Based upon the available information and advice from the Company’s legal counsel, management does not believe that any potential, threatened or pending litigation to which it is a party will have a material adverse effect on the Company’s liquidity, financial condition or results of operations.

Note 16 Fair Value Measurements

The Company uses fair value measurements to record fair value adjustments to certain assets and liabilities and to disclose the fair value of its financial instruments. 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. For disclosure purposes, the Company groups its financial and non-financial assets and liabilities into three different levels based on the nature of the instrument and the availability and reliability of the information that is used to determine fair value. The three levels are defined as follows:

· Level 1—Includes assets or liabilities in which the inputs to the valuation methodologies are based on unadjusted quoted prices in active markets for identical assets or liabilities.

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· Level 2—Includes assets or liabilities in which the inputs to the valuation methodologies are based on similar assets or liabilities in inactive markets, quoted prices for identical or similar assets or liabilities in inactive markets, and inputs other than quoted prices that are observable, such as interest rates, yield curves, volatilities, prepayment speeds, and other inputs obtained from observable market input.

· Level 3—Includes assets or liabilities in which the inputs to the valuation methodology are based on at least one significant assumption that is not observable in the marketplace. These valuations may rely on management’s judgment and may include internally-developed model-based valuation techniques.

Level 1 inputs are considered to be the most transparent and reliable and level 3 inputs are considered to be the least transparent and reliable. The Company assumes the use of the principal market to conduct a transaction of each particular asset or liability being measured and then considers the assumptions that market participants would use when pricing the asset or liability. Whenever possible, the Company first looks for quoted prices for identical assets or liabilities in active markets (level 1 inputs) to value each asset or liability. However, when inputs from identical assets or liabilities on active markets are not available, the Company utilizes market observable data for similar assets and liabilities. The Company maximizes the use of observable inputs and limits the use of unobservable inputs to occasions when observable inputs are not available. The need to use unobservable inputs generally results from the lack of market liquidity of the actual financial instrument or of the underlying collateral. Although, in some instances, third party price indications may be available, limited trading activity can challenge the observability of these quotations.

Changes in the valuation inputs used for measuring the fair value of financial instruments may occur due to changes in current market conditions or other factors. Such changes may necessitate a transfer of the financial instruments to another level in the hierarchy based on the new inputs used. The Company recognizes these transfers at the end of the reporting period that the transfer occurs. During the nine months ended September 30, 2017 and 2016, there were no transfers of financial instruments between the hierarchy levels.

The following is a description of the valuation methodologies used for assets and liabilities measured at fair value, as well as the general classification of each instrument under the valuation hierarchy:

Fair Value of Financial Instruments Measured on a Recurring Basis

Investment securities available-for-sale—Investment securities available-for-sale are carried at fair value on a recurring basis. To the extent possible, observable quoted prices in an active market are used to determine fair value and, as such, these securities are classified as level 1. At September 30, 2017 and December 31, 2016, the Company did not hold any level 1 securities. When quoted market prices in active markets for identical assets or liabilities are not available, quoted prices of securities with similar characteristics, discounted cash flows or other pricing characteristics are used to estimate fair values and the securities are then classified as level 2.

Interest rate swap derivatives—The Company's derivative instruments are limited to interest rate swaps that may be accounted for as fair value hedges or non-designated hedges. The fair values of the swaps incorporate credit valuation adjustments in order to appropriately reflect nonperformance risk in the fair value measurements. The credit valuation adjustment is the dollar amount of the fair value adjustment related to credit risk and utilizes a probability weighted calculation to quantify the potential loss over the life of the trade. The credit valuation adjustments are calculated by determining the total expected exposure of the derivatives (which incorporates both the current and potential future exposure) and then applying the respective counterparties’ credit spreads to the exposure offset by marketable collateral posted, if any. Certain derivative transactions are executed with counterparties who are large financial institutions ("dealers"). International Swaps and Derivative Association Master Agreements ("ISDA") and Credit Support Annexes ("CSA") are employed for all contracts with dealers. These contracts contain bilateral collateral arrangements. The fair value inputs of these financial instruments are determined using discounted cash flow analysis through the use of third-party models whose significant inputs are readily observable market parameters, primarily yield curves, with appropriate adjustments for liquidity and credit risk, and are classified as level 2.

Mortgage banking derivatives—The Company relies on a third-party pricing service to value its mortgage banking derivative financial assets and liabilities, which the Company classifies as a level 3 valuation. The external valuation model to estimate the fair value of its interest rate lock commitments to originate residential mortgage loans held for sale includes grouping the interest rate lock commitments by interest rate and terms, applying an estimated pull-through rate based on historical experience, and then multiplying by quoted investor prices determined to be reasonably applicable to the loan commitment groups based on interest rate, terms, and rate lock expiration dates of the loan commitment groups. The Company also relies on an external valuation model to estimate the fair value of its forward commitments to sell residential mortgage loans (i.e., an estimate of what the Company would receive or pay to

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terminate the forward delivery contract based on market prices for similar financial instruments), which includes matching specific terms and maturities of the forward commitments against applicable investor pricing.

The tables below present the financial instruments measured at fair value on a recurring basis as of September 30, 2017 and December 31, 2016 on the consolidated statements of financial condition utilizing the hierarchy structure described above:

	September 30, 2017
	Level 1		Level 2		Level 3		Total
Assets:
Investment securities available-for-sale:
Mortgage-backed securities (“MBS”):
Residential mortgage pass-through securities issued or guaranteed by U.S. Government agencies or sponsored enterprises	$	—	$	181,389	$	—	$	181,389
Other residential MBS issued or guaranteed by U.S. Government agencies or sponsored enterprises		—		628,479		—		628,479
Municipal securities		—		1,499		—		1,499
Interest rate swap derivatives		—		11,179		—		11,179
Mortgage banking derivatives		—		—		233		233
Total assets at fair value	$	—	$	822,546	$	233	$	822,779
Liabilities:
Interest rate swap derivatives	$	—	$	5,418	$	—	$	5,418
Mortgage banking derivatives		—		—		9		9
Total liabilities at fair value	$	—	$	5,418	$	9	$	5,427

	December 31, 2016
	Level 1		Level 2		Level 3		Total
Assets:
Investment securities available-for-sale:
Mortgage-backed securities (“MBS”):
Residential mortgage pass-through securities issued or guaranteed by U.S. Government agencies or sponsored enterprises	$	—	$	227,160	$	—	$	227,160
Other residential MBS issued or guaranteed by U.S. Government agencies or sponsored enterprises		—		652,739		—		652,739
Municipal securities		—		3,648		—		3,648
Interest rate swap derivatives		—		11,428		—		11,428
Mortgage banking derivatives		—		—		287		287
Total assets at fair value	$	—	$	894,975	$	287	$	895,262
Liabilities:
Interest rate swap derivatives	$	—	$	3,279	$	—	$	3,279
Mortgage banking derivatives		—		—		26		26
Total liabilities at fair value	$	—	$	3,279	$	26	$	3,305

The table below details the changes in level 3 financial instruments during the nine months ended September 30, 2017:

		Mortgage banking
		derivatives, net
Balance at December 31, 2016	$	261
Loss included in earnings, net		(37)
Balance at September 30, 2017	$	224

Fair Value of Financial Instruments Measured on a Non-recurring Basis

Certain assets may be recorded at fair value on a non-recurring basis as conditions warrant. These non-recurring fair value measurements typically result from the application of lower of cost or fair value accounting or a write-down occurring during the period.

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The Company records collateral dependent loans that are considered to be impaired at their estimated fair value. A loan is considered impaired when it is probable that the Company will be unable to collect all contractual amounts due in accordance with the terms of the loan agreement. Collateral dependent impaired loans are measured based on the fair value of the collateral. The Company relies on third-party appraisals and internal assessments in determining the estimated fair values of these loans. The inputs used to determine the fair values of loans are considered level 3 inputs in the fair value hierarchy. At September 30, 2017, the Company measured seven loans not accounted for under ASC 310-30 at fair value on a non-recurring basis, with a carrying balance of $8.3 million and a specific reserve balance of $1.1 million. At September 30, 2016, the Company measured one loan with a carrying balance of $6.4 million and a specific reserve balance of $1.5 million.

The Company may be required to record fair value adjustments on loans held-for-sale on a non-recurring basis. The non-recurring fair value adjustments could involve lower of cost or fair value accounting and may include write-downs.

OREO is recorded at the lower of the cost basis or the fair value of the collateral less estimated selling costs. The estimated fair values of OREO are updated periodically and further write-downs may be taken to reflect a new basis. The Company recognized $0.8 million and $0.3 million of OREO impairments in its consolidated statements of operations during the nine months ended September 30, 2017 and 2016, respectively. The fair values of OREO are derived from third party price opinions or appraisals that generally use an income approach or a market value approach. If reasonable comparable appraisals are not available, then the Company may use internally developed models to determine fair values. The inputs used to determine the fair values of OREO are considered level 3 inputs in the fair value hierarchy.

The table below provides information regarding the assets recorded at fair value on a non-recurring basis during the nine months ended September 30, 2017 and 2016:

	September 30, 2017
	Total		Losses from fair value changes
Other real estate owned	$	12,330	$	766
Impaired loans		28,459		9,171

	September 30, 2016
	Total		Losses from fair value changes
Other real estate owned	$	21,200	$	262
Impaired loans		35,411		17,546

The Company did not record any liabilities measured at fair value on a non-recurring basis during the nine months ended September 30, 2017.

The following table provides information about the valuation techniques and unobservable inputs used in the valuation of financial instruments classified as level 3 of the fair value hierarchy as of September 30, 2017. The table below excludes non-recurring fair value measurements of collateral value used for impairment measures for OREO, as described above, and other available-for-sale and municipal securities valued at par.

	Fair value at
	September 30, 2017		Valuation technique	Unobservable input	Qualitative measures
Impaired loans		28,459	Appraised value	Appraised values
				Discount rate	0% - 25%

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Note 17 Fair Value of Financial Instruments

The fair value of a financial instrument is the amount that would be exchanged between willing parties, other than in a forced liquidation. Fair value is determined based upon quoted market prices to the extent possible; however, in many instances, there are no quoted market prices for the Company’s various financial instruments. In cases where quoted market prices are not available, fair values are based on estimates using present value or other valuation techniques that may be significantly impacted by the assumptions used, including the discount rate and estimates of future cash flows. Changes in any of these assumptions could significantly affect the fair value estimates. The fair value of the financial instruments listed below does not reflect a premium or discount that could result from offering all of the Company’s holdings of financial instruments at one time, nor does it reflect the underlying value of the Company, as ASC Topic 825 excludes certain financial instruments and all non-financial instruments from its disclosure requirements. The fair value of financial instruments at September 30, 2017 and December 31, 2016, including methods and assumptions utilized for determining fair value of financial instruments, are set forth below:

	Level in fair value	September 30, 2017				December 31, 2016
	measurement	Carrying		Estimated		Carrying		Estimated
	hierarchy	amount		fair value		amount		fair value
ASSETS
Cash and cash equivalents	Level 1	$	241,160	$	241,160	$	152,736	$	152,736
Mortgage-backed securities—residential mortgage pass-through securities issued or guaranteed by U.S. Government agencies or sponsored enterprises available-for-sale	Level 2		181,389		181,389		227,160		227,160
Mortgage-backed securities—other residential mortgage-backed securities issued or guaranteed by U.S. Government agencies or sponsored enterprises available-for-sale	Level 2		628,479		628,479		652,739		652,739
Municipal securities	Level 2		1,499		1,499		3,648		3,648
Municipal securities	Level 3		265		265		265		265
Other available-for-sale securities	Level 3		419		419		419		419
Mortgage-backed securities—residential mortgage pass-through securities issued or guaranteed by U.S. Government agencies or sponsored enterprises held-to-maturity	Level 2		217,431		218,786		263,411		264,862
Mortgage-backed securities—other residential mortgage-backed securities issued or guaranteed by U.S. Government agencies or sponsored enterprises held-to-maturity	Level 2		57,939		56,822		69,094		67,711
Non-marketable securities	Level 2		15,537		15,537		14,949		14,949
Loans receivable	Level 3		3,120,543		3,117,549		2,860,921		2,879,860
Loans held-for-sale	Level 2		12,212		12,212		24,187		24,187
Accrued interest receivable	Level 2		16,042		16,042		12,562		12,562
Interest rate swap derivatives	Level 2		11,179		11,179		11,428		11,428
Mortgage banking derivatives	Level 3		233		233		287		287
LIABILITIES
Deposit transaction accounts	Level 2		2,813,175		2,813,175		2,696,603		2,696,603
Time deposits	Level 2		1,133,167		1,133,167		1,172,046		1,172,046
Securities sold under agreements to repurchase	Level 2		92,814		92,814		92,011		92,011
Federal Home Loan Bank advances	Level 2		129,115		130,300		38,665		39,324
Accrued interest payable	Level 2		6,676		6,676		4,973		4,973
Interest rate swap derivatives	Level 2		5,418		5,418		3,279		3,279
Mortgage banking derivatives	Level 3		9		9		187		187

Cash and cash equivalents

Cash and cash equivalents have a short-term nature and the estimated fair value is equal to the carrying value.

Investment securities

The estimated fair value of investment securities is based on quoted market prices or bid quotations received from securities dealers. Other investment securities, including securities that are held for regulatory purposes are carried at cost, less any other- than-temporary impairment.

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Loans receivable

The estimated fair value of the loan portfolio is estimated using a discounted cash flow analysis using a discount rate based on interest rates offered at the respective measurement dates for loans with similar terms to borrowers of similar credit quality. The allowance for loan losses is considered a reasonable estimate of any required adjustment to fair value to reflect the impact of credit risk. The estimates of fair value do not incorporate the exit-price concept prescribed by ASC Topic 820, Fair Value Measurements and Disclosures.

Loans held-for-sale

Loans held-for-sale are carried at the lower of aggregate cost or estimated fair value. The portfolio consists primarily of fixed rate residential mortgage loans that are sold within 45 days. The estimated fair value is based on quoted market prices for similar loans in the secondary market and is classified as level 2.

Accrued interest receivable

Accrued interest receivable is of a short-term nature and the estimated fair value is equal to the carrying value.

Deposits

The estimated fair value of deposits with no stated maturity, such as non-interest bearing demand deposits, savings, NOW accounts, and money market accounts, is equal to the amount payable on demand. The fair value of interest-bearing time deposits is based on the discounted value of contractual cash flows of such deposits, taking into account the option for early withdrawal. The discount rate is estimated using the rates offered by the Company, at the respective measurement dates, for deposits of similar remaining maturities. The fair value of time deposits has a floor equal to the carrying value as the amount payable on demand would approximate the carrying value.

Derivative assets and liabilities

Fair values for derivative assets and liabilities are fully described in note 16 of the consolidated financial statements.

Securities sold under agreements to repurchase

The vast majority of the Company’s repurchase agreements are overnight transactions that mature the day after the transaction, and as a result of this short-term nature, the estimated fair value is equal to the carrying value.

Accrued interest payable

Accrued interest payable is of a short-term nature and the estimated fair value is equal to the carrying value.

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Item 2: MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS.

The following management's discussion and analysis of our financial condition and results of operations should be read in conjunction with our consolidated financial statements and related notes as of and for the three and nine months ended September 30, 2017, and with our annual report on Form 10-K (file number 001-35654), which includes our audited consolidated financial statements and related notes as of and for the years ended December 31, 2016, 2015, and 2014. This discussion and analysis contains forward-looking statements that involve risks, uncertainties and assumptions that may cause actual results to differ materially from management's expectations. Factors that could cause such differences are discussed in the section entitled “Cautionary Note Regarding Forward-Looking Statements” located elsewhere in this quarterly report and in Item 1A“Risk Factors” in the annual report on Form 10-K, referenced above, and should be read herewith.

On December 31, 2015, our bank subsidiary converted to a Colorado state-chartered bank and changed its name from NBH Bank, N.A. to NBH Bank. All references to NBH Bank should be considered synonymous with references to NBH Bank, N.A. prior to the conversion and name change.

All amounts are in thousands, except share data, or as otherwise noted.

Overview

Our focus is on building strong banking relationships with small to medium-sized businesses and consumers, while maintaining a low risk profile designed to generate reliable income streams and attractive returns. We have established a solid financial services franchise with a sizable presence for deposit gathering and building client relationships necessary for growth. We believe that our established presence in core markets that are outperforming national averages positions us well for growth opportunities. As of September 30, 2017, we had $4.8 billion in assets, $3.1 billion in loans, $3.9 billion in deposits and $0.6 billion in equity.

Operating Highlights and Key Challenges

Our operations resulted in the following highlights as of and for the nine months ended September 30, 2017 (except as noted):

Strategic execution

	Net income was $24.7 million, or $0.89 per diluted share, compared to net income of $13.1 million, or $0.45 per diluted share, for the same period in the prior year. The return on average tangible assets was 0.79% compared to 0.45% for the same period in the prior year. The return on average tangible common equity was 7.41% compared to 3.88% for the same period in the prior year.
	Grew originated loan outstandings to $2.9 billion, an increase of $313.4 million, or 16.3% annualized, since December 31, 2016.
	Maintained a conservatively structured loan portfolio represented by diverse industries and concentrations with most industry sector concentrations at 5% or less of total loans and all concentration levels remain well below our self-imposed limits.
	Continued to build and deepen relationships with our clients resulting in strong deposit growth, particularly average demand deposit which grew 6.8%, annualized, adjusting for banking center divestitures, since December 31, 2016.
	Completed divestiture of four banking centers during the second quarter of 2017, resulting in a gain of $2.9 million included in other non-interest income.
	Announced the acquisition of Peoples, Inc. during the second quarter of 2017, which is expected to add $865 million in assets, $483 million of loans held for investment and $719 million of deposits as of March 31, 2017, as well as a complementary franchise-centric retail mortgage business, which originates over $1.0 billion of mortgage loans per year.

Loan portfolio

	Total loans ended the quarter at $3.1 billion and increased $259.6 million, or 12.1% annualized, since December 31, 2016, driven by new loan originations of $647.5 million. Total loans at September 30, 2017 increased $297.9 million, or 10.6% since September 30, 2016, on the strength of $922.5 million in loan originations.
	Non 310-30 loans increased $279.9 million, or 13.8% annualized, led by total commercial loans increasing 22.4% annualized, since December 31, 2016.

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 Successfully exited $20.3 million, or 18.6% annualized, of the remaining acquired 310-30 loan portfolio, since December 31, 2016.

Non 310-30 credit quality

	Credit quality improved, as 90 days past due and non-accruing loans were 0.64% of total loans at September 30, 2017 compared to 1.13% at December 31, 2016. Non-performing assets to total loans and OREO totaled 1.01% at September 30, 2017 compared to 1.61% at December 31, 2016.
	Annualized net charge-offs on non 310-30 loans totaled 0.41%, or 0.13% excluding the energy portfolio, compared to 1.16% in the first nine months of 2016, or 0.13% excluding the energy portfolio.
	Provision for loan losses totaled $9.9 million compared to $23.2 million in the same period in the prior year, a decrease of $13.3 million driven entirely by a reduction in the provision for energy loans.

Client deposit funded balance sheet

	Total deposits averaged $3.9 billion and increased $79.3 million, or 2.8%, annualized, since December 31, 2016, adjusting for the banking center divestitures in the second quarter of 2017.
	Demand deposits averaged $847.2 million and grew $41.2 million, or 6.8%, annualized, since December 31, 2016, adjusting for the banking center divestitures in the second quarter of 2017.
	Time deposits averaged $1.1 billion, increasing $6.3 million, since December 31, 2016, on an adjusted basis.
	The mix of transaction deposits to total deposits improved to 71.3% from 69.7% at December 31, 2016.
	Cost of deposits totaled 0.41%, increasing from 0.36% in the same period in the prior year, due to higher cost of savings, money market and time deposits.
	Client repurchase agreements averaged $85.1 million, decreasing $27.5 million compared to the same period in the prior year, due to temporary client funds from one client in the prior year.

Revenues

	Year-over-year revenue grew $12.5 million, or 10.5%, adjusting for the $2.9 million gain on banking center divestitures during the second quarter of 2017 and $1.8 million gain on sale of a building in the prior year.
	Fully taxable equivalent (FTE) net interest income totaled $113.7 million and increased $0.8 million, benefitting from the shift of earning assets into the originated loan portfolio.
	The FTE net interest margin widened 0.02% to 3.53% from September 30, 2016.
	Non-interest income totaled $30.2 million, increasing $0.2 million from the same period in the prior year.
	Service charges and bank card fees increased a combined $0.6 million, or 2.9% from the same period in the prior year, due to higher treasury management fees and higher interchange activity. Gain on sale of mortgages decreased $0.5 million due to lower volumes.

Expenses

	Non-interest expense totaled $102.7 million, representing an increase of $1.1 million from the same period in the prior year, due to lower gain on sale of OREO of $1.9 million as well as $0.7 million of acquisition-related costs.
	Income tax expense totaled $2.7 million, including a benefit of $3.4 million due to tax benefits from stock compensation activity. Without this $3.4 million benefit, tax expense would have been $6.1 million, with an effective tax rate of 22.3%.

Strong capital position

	Capital ratios are strong as our capital position remains well in excess of federal bank regulatory thresholds. As of September 30, 2017, our consolidated tier 1 leverage ratio was 10.4% and our consolidated tier 1 risk-based capital and common equity tier 1 risk-based capital ratios were both 13.5%.
	At September 30, 2017, common book value per share was $20.53, while tangible common book value per share was $18.59.
	Since early 2013, we have repurchased 26.6 million shares, or 50.9% of then outstanding shares, at an attractive weighted average price of $20.03 per share.

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Key Challenges

There are a number of significant challenges confronting us and our industry. In our short history, we have acquired distressed financial institutions, and sought to rebuild them and implement operational efficiencies across the enterprise as a whole. We face continual challenges implementing our business strategy, including growing the assets and deposits of our business amidst intense competition, particularly for loans and deposits, low interest rates, changes in the regulatory environment and identifying and consummating disciplined merger and acquisition opportunities in a very competitive environment.

General economic conditions continued to improve in the third quarter of 2017. Residential real estate values have largely recovered from their lows and commercial real estate property fundamentals continued to improve in our markets and nationally across all property types and classes. A significant portion of our loan portfolio is secured by real estate and any deterioration in real estate values or credit quality or elevated levels of non-performing assets would ultimately have a negative impact on the quality of our loan portfolio.

Oil and gas prices began a steep decline in November 2014 and have remained volatile through the third quarter of 2017. While there have been job losses related to the energy sector, employment rates and job creation have trended favorably as other industry sectors have offset declines in energy. Nevertheless, the direct impact on the energy sector has been profound and we have experienced credit deterioration and credit losses in our energy loan portfolio. Energy loans comprised 2.6% of our total loans at September 30, 2017 and prolonged or further pricing pressure on oil and gas could lead to additional credit stress in our energy portfolio.

The agriculture industry is in the third year of depressed commodity prices. Our agriculture portfolio is only 4.2% of total loans and is well-diversified across crop and livestock types. We have maintained prudent client selectivity, leading to agriculture clients possessing low leverage and, correspondingly, low bank debt to assets, minimizing any potential credit losses in the future.

Our originated loan portfolio at September 30, 2017 totaled $2.9 billion, representing an increase of $313.4 million, or 16.3% annualized compared to December 31, 2016, due to $647.5 million in loan originations, partially offset by loan paydowns and payoffs during the nine months ended September 30, 2017. Our acquired loans have produced higher yields than our originated loans, due to accretion of fair value adjustments. During the nine months ended September 30, 2017, our weighted average rate on loan originations at the time of origination was 4.10% (fully taxable equivalent), compared to the nine months ended September 30, 2017 weighted average yield of our total loan portfolio of 4.74% (fully taxable equivalent). Downward pressure on the yields of our total loan portfolio will continue to the extent that our originated loan portfolio does not provide sufficient yields to replace the high yields on the acquired loan portfolio as they pay down or pay off. Fully taxable equivalent net interest income reached an inflection point in the second quarter of 2017 and continued during the third quarter of 2017 as the yields and volumes of originated loans outpaced the decrease in higher yielding acquired loan balances. The inflection point was driven by both the strong new loan originations as well as the short-term market rate increases in 2017. Future growth in our interest income will ultimately be dependent on our ability to continue to generate sufficient volumes of high-quality originated loans. 

Continued regulation, impending new liquidity and capital constraints, and a continual need to bolster cybersecurity are adding costs and uncertainty to all U.S. banks and could affect profitability. Also, nontraditional participants in the market may offer increased competition as non-bank payment businesses are expanding into traditional banking products. While certain external factors are out of our control and may provide obstacles to our business strategy, we believe that we are prepared to deal with these challenges. We seek to remain flexible, yet methodical and proactive, in our strategic decision making so that we can quickly respond to market changes and the inherent challenges and opportunities that accompany such changes.

Performance Overview

In evaluating the consolidated statements of financial condition and results of operations financial statement line items, we evaluate and manage our performance based on key earnings indicators, balance sheet ratios, asset quality metrics and regulatory capital ratios, among others. The table below presents some of the primary performance indicators that we use to analyze our business on a regular basis for the periods indicated:

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	As of and for the three months ended					As of and for the nine months ended
	September 30,	December 31,		September 30,		September 30,		September 30,
	2017	2016		2016		2017		2016
Key Ratios(1)
Return on average assets	0.61%	0.87%		0.72%		0.71%		0.37%
Return on average tangible assets(2)	0.69%	0.95%		0.80%		0.79%		0.45%
Return on average tangible assets before provision for loan losses and taxes FTE(2)	1.35%	1.21%		1.55%		1.32%		1.32%
Return on average equity	5.21%	7.31%		5.76%		6.06%		2.92%
Return on average tangible common equity(2)	6.43%	8.87%		7.07%		7.41%		3.88%
Interest earning assets to interest bearing liabilities (end of period)(3)	135.53%	133.44%		133.09%		135.53%		133.09%
Loans to deposits ratio (end of period)	79.38%	74.58%		74.32%		79.38%		74.32%
Non-interest bearing deposits to total deposits (end of period)	23.08%	21.89%		22.00%		23.08%		22.00%
Net interest margin(4)	3.46%	3.37%		3.49%		3.40%		3.41%
Net interest margin FTE(2)(4)	3.60%	3.46%		3.59%		3.53%		3.51%
Interest rate spread(5)	3.45%	3.34%		3.46%		3.39%		3.39%
Yield on earning assets(3)	3.89%	3.73%		3.84%		3.81%		3.75%
Yield on earning assets FTE(2)(3)	4.03%	3.83%		3.93%		3.94%		3.85%
Cost of interest bearing liabilities(3)	0.58%	0.49%		0.47%		0.54%		0.46%
Cost of deposits	0.42%	0.38%		0.36%		0.41%		0.36%
Non-interest expense to average assets	2.93%	2.98%		2.89%		2.95%		2.90%
Efficiency ratio FTE(2)(6)	67.87%	70.62%		64.37%		68.48%		68.19%
Asset Quality Data(7)(8)(9)
Non-performing loans to total loans	0.61%	1.07%		0.80%		0.61%		0.80%
Non-performing assets to total loans and OREO	1.01%	1.61%		1.54%		1.01%		1.54%
Allowance for loan losses to total loans	0.96%	1.02%		0.99%		0.96%		0.99%
Allowance for loan losses to non-performing loans	156.85%	94.98%		124.66%		156.85%		124.66%
Net charge-offs to average loans(1)	1.13%	0.02%		2.49%		0.39%		1.08%

(1)	Ratios are annualized.
(2)	Ratio represents non-GAAP financial measure. See non-GAAP reconciliation below.
(3)	Interest earning assets include assets that earn interest/accretion or dividends which is not part of interest earning assets. Any market value adjustments on investment securities are excluded from interest-earning assets. Interest bearing liabilities include liabilities that must be paid interest.
(4)	Net interest margin represents net interest income, including accretion income on interest earning assets, as a percentage of average interest earning assets.
(5)	Interest rate spread represents the difference between the weighted average yield on interest earning assets and the weighted average cost of interest bearing liabilities.
(6)	The efficiency ratio represents non-interest expense, less intangible asset amortization, as a percentage of net interest income on a FTE basis plus non-interest income and is considered a non-GAAP ratio.
(7)	Non-performing loans consist of non-accruing loans and restructured loans on non-accrual, but exclude any loans accounted for under ASC 310-30 in which the pool is still performing. These ratios may, therefore, not be comparable to similar ratios of our peers.
(8)	Non-performing assets include non-performing loans, other real estate owned and other repossessed assets.
(9)	Total loans are net of unearned discounts and fees.

About Non-GAAP Financial Measures

Certain of the financial measures and ratios we present, including “tangible assets,” “return on average tangible assets,” “return on average tangible assets before provision for loan losses and taxes,” “return on average tangible common equity,” “tangible common book value,” “tangible common book value per share,” “tangible common equity,” "tangible common equity to tangible assets," and "fully taxable equivalent (FTE)" metrics are supplemental measures that are not required by, or are not presented in accordance with, U.S. generally accepted accounting principles (GAAP). We refer to these financial measures and ratios as “non-GAAP financial measures.” We consider the use of select non-GAAP financial measures and ratios to be useful for financial and operational decision making and useful in evaluating period-to-period comparisons. We believe that these non-GAAP financial measures provide meaningful supplemental information regarding our performance by excluding certain expenditures or assets that we believe are not indicative of our primary business operating results or by presenting certain metrics on a FTE basis. We believe that management and investors benefit

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from referring to these non-GAAP financial measures in assessing our performance and when planning, forecasting, analyzing and comparing past, present and future periods.

These non-GAAP financial measures should not be considered a substitute for financial information presented in accordance with GAAP and you should not rely on non-GAAP financial measures alone as measures of our performance. The non-GAAP financial measures we present may differ from non-GAAP financial measures used by our peers or other companies. We compensate for these limitations by providing the equivalent GAAP measures whenever we present the non-GAAP financial measures and by including a reconciliation of the impact of the components adjusted for in the non-GAAP financial measure so that both measures and the individual components may be considered when analyzing our performance.

A reconciliation of our GAAP financial measures to the comparable non-GAAP financial measures is as follows.

Tangible Common Book Value Ratios

	September 30,		December 31,		September 30,
	2017		2016		2016
Total shareholders’ equity	$	550,244	$	536,189	$	549,772
Less: goodwill and intangible assets, net		(62,470)		(66,580)		(67,950)
Add: deferred tax liability related to goodwill		10,485		9,323		8,935
Tangible common equity (non-GAAP)	$	498,259	$	478,932	$	490,757
Total assets	$	4,768,972	$	4,573,046	$	4,606,413
Less: goodwill and intangible assets, net		(62,470)		(66,580)		(67,950)
Add: deferred tax liability related to goodwill		10,485		9,323		8,935
Tangible assets (non-GAAP)	$	4,716,987	$	4,515,789	$	4,547,398
Tangible common equity to tangible assets calculations:
Total shareholders' equity to total assets		11.54%		11.72%		11.93%
Less: impact of goodwill and intangible assets, net		(0.98)%		(1.11)%		(1.14)%
Tangible common equity to tangible assets (non-GAAP)		10.56%		10.61%		10.79%
Tangible common book value per share calculations:
Tangible common equity (non-GAAP)	$	498,259	$	478,932	$	490,757
Divided by: ending shares outstanding		26,802,964		26,386,583		26,282,224
Tangible common book value per share (non-GAAP)	$	18.59	$	18.15	$	18.67
Tangible common book value per share, excluding accumulated other comprehensive income calculations:
Tangible common equity (non-GAAP)	$	498,259	$	478,932	$	490,757
Less: accumulated other comprehensive income, net of tax		1,335		1,762		(8,547)
Tangible common book value, excluding accumulated other comprehensive income, net of tax (non-GAAP)		499,594		480,694		482,210
Divided by: ending shares outstanding		26,802,964		26,386,583		26,282,224
Tangible common book value per share, excluding accumulated other comprehensive income, net of tax (non-GAAP)	$	18.64	$	18.22	$	18.35

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Return on Average Tangible Assets and Return on Average Tangible Equity

	As of and for the three months ended						As of and for the nine months ended
	September 30,		December 31,		September 30,		September 30,		September 30,
	2017		2016		2016		2017		2016
Net income	$	7,231	$	9,989	$	8,314	$	24,698	$	13,069
Add: impact of core deposit intangible amortization expense, after tax		836		836		836		2,507		2,507
Net income adjusted for impact of core deposit intangible amortization expense, after tax	$	8,067	$	10,825	$	9,150	$	27,205	$	15,576
Income before income taxes FTE (non-GAAP)	$	10,482	$	11,098	$	11,050	$	31,542	$	18,988
Add: impact of core deposit intangible amortization expense, before tax		1,370		1,370		1,370		4,110		4,110
Add: provision for loan losses		3,880		1,282		5,293		9,700		22,369
FTE income adjusted for impact of core deposit intangible amortization expense and provision (non-GAAP)	$	15,732	$	13,750	$	17,713	$	45,352	$	45,467
Average assets	$	4,690,283	$	4,592,228	$	4,600,769	$	4,657,894	$	4,672,007
Less: average goodwill and intangible assets, net of deferred tax asset related to goodwill		(52,665)		(57,932)		(59,685)		(54,024)		(61,051)
Average tangible assets (non-GAAP)	$	4,637,618	$	4,534,296	$	4,541,084	$	4,603,870	$	4,610,956
Average shareholders' equity	$	550,758	$	543,421	$	574,574	$	544,662	$	597,206
Less: average goodwill and intangible assets, net of deferred tax asset related to goodwill		(52,665)		(57,932)		(59,685)		(54,024)		(61,051)
Average tangible common equity (non-GAAP)	$	498,093	$	485,489	$	514,889	$	490,638	$	536,155
Return on average assets		0.61%		0.87%		0.72%		0.71%		0.37%
Return on average tangible assets (non-GAAP)		0.69%		0.95%		0.80%		0.79%		0.45%
Return on average tangible assets before provision for loan losses and taxes FTE (non-GAAP)		1.35%		1.21%		1.55%		1.32%		1.32%
Return on average equity		5.21%		7.31%		5.76%		6.06%		2.92%
Return on average tangible common equity (non-GAAP)		6.43%		8.87%		7.07%		7.41%		3.88%

Fully Taxable Equivalent Yield on Earning Assets and Net Interest Margin

	As of and for the three months ended						As of and for the nine months ended
	September 30,		December 31,		September 30,		September 30,		September 30,
	2017		2016		2016		2017		2016
Interest income	$	42,579	$	39,658	$	40,764	$	122,652	$	120,790
Add: impact of taxable equivalent adjustment		1,518		1,028		1,041		4,176		3,053
Interest income FTE (non-GAAP)	$	44,097	$	40,686	$	41,805	$	126,828	$	123,843
Net interest income	$	37,898	$	35,785	$	37,064	$	109,513	$	109,855
Add: impact of taxable equivalent adjustment		1,518		1,028		1,041		4,176		3,053
Net interest income FTE (non-GAAP)	$	39,416	$	36,813	$	38,105	$	113,689	$	112,908
Average earning assets	$	4,344,374	$	4,230,177	$	4,227,732	$	4,305,354	$	4,301,320
Yield on earning assets		3.89%		3.73%		3.84%		3.81%		3.75%
Yield on earning assets FTE (non-GAAP)		4.03%		3.83%		3.93%		3.94%		3.85%
Net interest margin		3.46%		3.37%		3.49%		3.40%		3.41%
Net interest margin FTE (non-GAAP)		3.60%		3.46%		3.59%		3.53%		3.51%

Application of Critical Accounting Policies

We use accounting principles and methods that conform to GAAP and general banking practices. We are required to apply significant judgment and make material estimates in the preparation of our financial statements and with regard to various accounting, reporting and disclosure matters. Assumptions and estimates are required to apply these principles where actual measurement is not possible or practical. The most significant of these estimates relate to the accounting for acquired loans and the determination of the ALL. These

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critical accounting policies and estimates are summarized in the sections captioned “Application of Critical Accounting Policies” in Management's Discussion and Analysis in our 2016 Annual Report on Form 10-K, and are further analyzed with other significant accounting policies in note 2, “Summary of Significant Accounting Policies” in the notes to our consolidated financial statements for the year ended December 31, 2016.

Financial Condition

Total assets increased to $4.8 billion at September 30, 2017 from $4.6 billion at December 31, 2016. During the nine months ended September 30, 2017, the decrease from the investment securities portfolio and acquired 310-30 loans was used to fund new loan growth. Total loans were $3.1 billion at September 30, 2017, and grew $259.6 million, or 12.1% annualized, from December 31, 2016. Originated loan outstandings totaled $2.9 billion and increased $313.4 million, or 16.3% annualized, from December 31, 2016. The acquired 310-30 loan portfolio declined $20.3 million, or 13.9%, from December 31, 2016, as a result of the continued successful workout efforts that have been made on our existing acquired problem loans. OREO decreased $3.3 million as we continue to resolve legacy acquired problem assets. During the nine months ended September 30, 2017, lower cost demand, savings, and money market ("transaction") deposits were consistent with prior year, after completion of the four banking center divestitures during the second quarter of 2017, while time deposits decreased $38.9 million, or 3.3%, as we continued to focus on developing a long-term banking relationship with clients. 

Investment Securities

Available-for-sale

Total investment securities available-for-sale were $0.8 billion at September 30, 2017 and $0.9 billion at December 31, 2016. During the nine months ended September 30, 2017, maturities and pay downs of available-for-sale securities totaled $171.3 million, and purchases of available-for-sale securities totaled $98.5 million. Our available-for-sale investment securities portfolio is summarized as follows for the periods indicated:

	September 30, 2017						December 31, 2016
						Weighted						Weighted
	Amortized		Fair		Percent of	average	Amortized		Fair		Percent of	average
	cost		value		portfolio	yield	cost		value		portfolio	yield
Mortgage-backed securities (“MBS”):
Residential mortgage pass-through securities issued or guaranteed by U.S. Government agencies or sponsored enterprises	$	178,649	$	181,389	22.3%	2.31%	$	223,781	$	227,160	25.8%	2.31%
Other residential MBS issued or guaranteed by U.S. Government agencies or sponsored enterprises		639,456		628,479	77.4%	1.79%		666,616		652,739	73.8%	1.71%
Municipal securities		1,646		1,764	0.2%	3.38%		3,921		3,914	0.4%	3.34%
Other securities		419		419	0.1%	0.00%		419		419	0.0%	0.00%
Total investment securities available-for-sale	$	820,170	$	812,051	100.0%	1.91%	$	894,737	$	884,232	100.0%	1.86%

As of September 30, 2017 and December 31, 2016, generally the entire available-for-sale investment portfolio was backed by mortgages. The residential mortgage pass-through securities portfolio is comprised of both fixed rate and adjustable rate Federal Home Loan Mortgage Corporation (“FHLMC”), Federal National Mortgage Association (“FNMA”) and Government National Mortgage Association (“GNMA”) securities. The other mortgage-backed securities are comprised of securities backed by FHLMC, FNMA and GNMA securities.

At September 30, 2017 and December 31, 2016, adjustable rate securities comprised 5.8% and 6.7%, respectively, of the available-for-sale MBS portfolio. The remainder of the portfolio was comprised of fixed rate amortizing securities with 10 to 30 year contractual maturities, with a weighted average coupon of 2.06% per annum and 1.97% per annum at September 30, 2017 and December 31, 2016, respectively.

The available-for-sale investment portfolio included $12.7 million and $16.5 million of gross unrealized losses and $4.6 million and $6.0 million of gross unrealized gains at September 30, 2017 and December 31, 2016, respectively. In addition to the U.S. Government agency or sponsored enterprise backings of our MBS portfolio, we believe any unrecognized losses are a result of prevailing interest rates, and as such, we do not believe that any of the securities with unrealized losses were other-than-temporarily-impaired.

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Held-to-maturity

At September 30, 2017, we held $275.4 million of held-to-maturity investment securities, compared to $332.5 million at December 31, 2016, a decrease of $57.1 million, or 17.2%. During the nine months ended September 30, 2017, maturities and pay downs of held-to-maturity securities totaled $55.1 million, while there were no purchases of held-to-maturity securities. Held-to-maturity investment securities are summarized as follows as of the date indicated:

	September 30, 2017						December 31, 2016
						Weighted						Weighted
	Amortized		Fair		Percent of	average	Amortized		Fair		Percent of	average
	cost		value		portfolio	yield	cost		value		portfolio	yield
Mortgage-backed securities (“MBS”):
Residential mortgage pass-through securities issued or guaranteed by U.S. Government agencies or sponsored enterprises	$	217,431	$	218,786	79.0%	3.23%	$	263,411	$	264,862	79.2%	3.24%
Other residential MBS issued or guaranteed by U.S. Government agencies or sponsored enterprises		57,939		56,822	21.0%	1.66%		69,094		67,711	20.8%	1.68%
Total investment securities held-to-maturity	$	275,370	$	275,608	100.0%	2.90%	$	332,505	$	332,573	100.0%	2.91%

The residential mortgage pass-through and other residential MBS held-to-maturity investment portfolios are comprised of fixed rate FHLMC, FNMA and GNMA securities.

The fair value of the held-to-maturity investment portfolio was $275.6 million and $332.6 million, at September 30, 2017 and December 31, 2016, respectively, and included $0.2 million and $0.1 million of net unrealized gains at September 30, 2017 and December 31, 2016, respectively.  

Loans Overview

At September 30, 2017, our loan portfolio was comprised of new loans that we have originated and loans that were acquired in connection with our five acquisitions to date.

As discussed in note 4 to our consolidated financial statements, in accordance with applicable accounting guidance, all acquired loans are recorded at fair value at the date of acquisition, and an allowance for loan losses is not carried over with the loans but, rather, the fair value of the loans encompasses both credit quality and contractual interest rate considerations. Loans that exhibit signs of credit deterioration at the date of acquisition are accounted for in accordance with the provisions of ASC 310-30. Management accounted for all loans acquired in the Hillcrest Bank, Bank of Choice and Community Banks of Colorado acquisitions under ASC 310-30, with the exception of loans with revolving privileges, which were outside the scope of ASC 310-30. In our Bank Midwest transaction, we did not acquire all of the loans of the former Bank Midwest but, rather, selected certain loans based upon specific criteria of performance, adequacy of collateral, and loan type that were performing at the time of acquisition. As a result, none of the loans acquired in the Bank Midwest transaction are accounted for under ASC 310-30. None of the loans acquired in the Pine River transaction are accounted for under ASC 310-30.

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The table below shows the loan portfolio composition and the breakout of the portfolio between ASC 310-30 loans and non 310-30 loans at the respective dates:

					September 30, 2017 vs
					December 31, 2016
	September 30, 2017		December 31, 2016		% Change
Loans excluded from ASC 310-30:
Commercial:
Commercial and industrial	$	1,286,355	$	1,074,696	19.7%
Owner occupied commercial real estate		276,155		221,544	24.7%
Agriculture		132,147		134,637	(1.8)%
Energy		81,351		90,273	(9.9)%
Total commercial		1,776,008		1,521,150	16.8%
Commercial real estate non-owner occupied		481,856		437,642	10.1%
Residential real estate		710,954		728,361	(2.4)%
Consumer		26,129		27,916	(6.4)%
Total loans excluded from ASC 310-30		2,994,947		2,715,069	10.3%
Loans accounted for under ASC 310-30:
Commercial		31,875		39,280	(18.9)%
Commercial real estate non-owner occupied		79,798		89,150	(10.5)%
Residential real estate		13,420		16,524	(18.8)%
Consumer		503		898	(44.0)%
Total loans accounted for under ASC 310-30		125,596		145,852	(13.9)%
Total loans	$	3,120,543	$	2,860,921	9.1%

Our loan portfolio totaled $3.1 billion at September 30, 2017, representing an increase of $259.6 million, or 12.1%, annualized, from December 31, 2016, driven by new loan originations of $647.5 million during the nine months ended September 30, 2017. Non 310-30 loans increased $279.9 million, or 13.8% annualized, led by total commercial loans increasing 22.4% annualized. Originated loans outstanding totaled $2.9 billion and increased $313.4 million, or 16.3%, annualized, from December 31, 2016. The acquired 310-30 loan portfolio declined $20.3 million, or 18.6% annualized, from December 31, 2016, as a result of the continued successful workout efforts that have been made on exiting acquired problem loans.

We have successfully generated new relationships with small to medium-sized businesses and consumers, experiencing particularly strong loan growth in our commercial and industrial portfolio, which at September 30, 2017, was comprised of diverse industry segments. These segments included public administration-related loans of $376.0 million, finance and insurance-related loans of $243.0 million, health care-related loans of $139.8 million, manufacturing-related loans of $106.6 million, and a variety of smaller subcategories of commercial and industrial loans.

At September 30, 2017, our non 310-30 commercial real estate non-owner occupied loans were only 99.8% of the Company’s risk based capital, or 15.4% of total loans, and no specific property type comprised more than 4.3% of total loans. The Company maintains very little exposure to retail properties, comprising 2.0% of total loans. Multi-family loans totaled $40.2 million, or 1.3% of total loans as of September 30, 2017. Agriculture loans were 27.4% of the Company’s risk based capital and 4.2% of total loans, and are well-diversified across crop and livestock types.

New loan origination is a direct result of our ability to recruit and retain top banking talent, connect with clients in our markets and provide needed services at competitive rates. Loan originations totaled $922.5 million over the past twelve months. Originations are defined as closed end funded loans and revolving lines of credit advances, net of any current period paydowns. Management utilizes this more conservative definition of originations to better approximate the impact of originations on loans outstanding and ultimately net interest income. The following table represents new loan originations for the last five quarters:

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	Third quarter		Second quarter		First quarter		Fourth quarter		Third quarter
	2017		2017		2017		2016		2016
Commercial:
Commercial and industrial	$	73,917	$	159,340	$	114,414	$	109,670	$	92,433
Owner occupied commercial real estate		32,787		6,899		16,988		18,606		19,091
Agriculture		3,335		16,696		(3,644)		18,480		9,589
Energy		(6,993)		9,120		(81)		4,433		(1,251)
Total commercial		103,046		192,055		127,677		151,189		119,862
Commercial real estate non-owner occupied		46,654		47,312		36,962		30,227		54,456
Residential real estate		28,471		26,979		29,616		89,968		102,703
Consumer		3,122		3,233		2,378		3,566		4,995
Total	$	181,293	$	269,579	$	196,633	$	274,950	$	282,016

Included in originations are net fundings under revolving lines of credit of $(12,804), $68,305, $33,397, $18,670 and $26,959 as of the third quarter 2017, second quarter 2017, first quarter 2017, fourth quarter 2016 and third quarter 2016, respectively. The third quarter 2017 decrease in originations was primarily driven by the decrease in net fundings under revolving lines of credit resulting from cash flow needs of commercial clients, compared to prior periods. The tables below show the contractual maturities of our loans for the dates indicated:

	September 30, 2017
	Due within		Due after 1 but		Due after
	1 year		within 5 years		5 years		Total
Commercial:
Commercial and industrial	$	72,687	$	530,497	$	689,284	$	1,292,468
Owner occupied commercial real estate		15,591		117,493		160,934		294,018
Agriculture		16,855		93,028		30,162		140,045
Energy		17,349		64,003		—		81,352
Total commercial		122,482		805,021		880,380		1,807,883
Commercial real estate non-owner occupied		127,778		305,890		127,986		561,654
Residential real estate		6,804		37,161		680,409		724,374
Consumer		6,485		15,509		4,638		26,632
Total loans	$	263,549	$	1,163,581	$	1,693,413	$	3,120,543

	December 31, 2016
	Due within		Due after 1 but		Due after
	1 year		within 5 years		5 years		Total
Commercial:
Commercial and industrial	$	68,485	$	455,444	$	559,421	$	1,083,350
Owner occupied commercial real estate		18,887		92,739		131,434		243,060
Agriculture		22,146		92,269		29,332		143,747
Energy		18,840		71,433		—		90,273
Total commercial		128,358		711,885		720,187		1,560,430
Commercial real estate non-owner occupied		126,784		279,135		120,873		526,792
Residential real estate		9,554		35,506		699,825		744,885
Consumer		5,529		18,164		5,121		28,814
Total loans	$	270,225	$	1,044,690	$	1,546,006	$	2,860,921

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The stated interest rate (which excludes the effects of non-refundable loan origination and commitment fees, net of costs and the accretion of fair value marks) of non 310-30 loans with maturities over one year is as follows at the dates indicated:

	September 30, 2017
	Fixed			Variable			Total
			Weighted			Weighted			Weighted
	Balance		average rate	Balance		average rate	Balance		average rate
Commercial
Commercial and industrial(1)	$	650,844	3.33%	$	563,908	4.04%	$	1,214,752	3.66%
Owner occupied commercial real estate		117,094	4.19%		147,711	4.15%		264,805	4.30%
Agriculture		41,040	4.70%		75,641	4.12%		116,681	4.32%
Energy		150	4.36%		63,853	4.15%		64,003	4.15%
Total commercial		809,128	3.56%		851,113	4.07%		1,660,241	3.83%
Commercial real estate non-owner occupied		152,171	4.40%		233,889	4.18%		386,060	4.27%
Residential real estate		379,787	3.40%		325,098	3.86%		704,885	3.61%
Consumer		16,670	4.72%		3,001	4.36%		19,671	4.66%
Total loans with > 1 year maturity	$	1,357,756	3.63%	$	1,413,101	4.04%	$	2,770,857	3.84%

	December 31, 2016
	Fixed			Variable			Total
			Weighted			Weighted			Weighted
	Balance		average rate	Balance		average rate	Balance		average rate
Commercial
Commercial and industrial(1)	$	544,464	3.25%	$	464,713	3.80%	$	1,009,177	3.50%
Owner occupied commercial real estate		114,513	4.13%		92,535	4.32%		207,048	4.41%
Agriculture		41,373	4.62%		72,140	3.68%		113,513	4.02%
Energy		7,174	0.93%		64,259	3.60%		71,433	3.05%
Total commercial		707,524	3.46%		693,647	3.84%		1,401,171	3.65%
Commercial real estate non-owner occupied		136,965	4.51%		221,527	3.65%		358,492	3.98%
Residential real estate		402,616	3.37%		316,784	3.73%		719,400	3.53%
Consumer		19,127	4.49%		3,395	4.06%		22,522	4.42%
Total loans with > 1 year maturity	$	1,266,232	3.56%	$	1,235,353	3.78%	$	2,501,585	3.67%

(1) Included in commercial fixed rate loans are loans totaling $398,143 and $313,000 that have been swapped to variable rates at current market pricing at September 30, 2017 and December 31, 2016, respectively. Included in the commercial segment are tax exempt loans totaling $576,670 and $384,641 with a weighted average rate of 3.14% and 3.01% at September 30, 2017 and December 31, 2016, respectively.

Accretable Yield

At September 30, 2017, the accretable yield balance was $51.5 million compared to $60.5 million at December 31, 2016. We re-measure the expected cash flows quarterly for all 26 remaining loan pools accounted for under ASC 310-30 utilizing the same cash flow methodology used at the time of acquisition. This re-measurement resulted in a net $8.8 million and $6.1 million reclassification from non-accretable difference to accretable yield during the nine months ended September 30, 2017 and 2016, respectively.

In addition to the accretable yield on loans accounted for under ASC 310-30, the fair value adjustments on loans outside the scope of ASC 310-30 are also accreted to interest income over the life of the loans. Total remaining accretable yield and fair value mark was as follows for the dates indicated:

	September 30, 2017		December 31, 2016
Remaining accretable yield on loans accounted for under ASC 310-30	$	51,548	$	60,476
Remaining accretable fair value mark on loans not accounted for under ASC 310-30		1,983		3,236
Total remaining accretable yield and fair value mark	$	53,531	$	63,712

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Asset Quality

All of the assets acquired in our acquisitions were marked to fair value at the date of acquisition, and the fair value adjustments to loans included a credit quality component. We utilize traditional credit quality metrics to evaluate the overall credit quality of our loan portfolio; however, our credit quality ratios are somewhat limited in their comparability to industry averages or to other financial institutions because of the percentage of acquired problem loans and given that any asset quality deterioration that existed at the date of acquisition was considered in the original fair value adjustments.

Asset quality is fundamental to our success and remains a strong point, driven by our disciplined adherence to our self-imposed concentration limits across industry sector and real estate property type. Accordingly, for the origination of loans, we have established a credit policy that allows for responsive, yet controlled lending with credit approval requirements that are scaled to loan size. Within the scope of the credit policy, each prospective loan is reviewed in order to determine the appropriateness and the adequacy of the loan characteristics and the security or collateral prior to making a loan. We have established underwriting standards and loan origination procedures that require appropriate documentation, including financial data and credit reports. For loans secured by real property, we require property appraisals, title insurance or a title opinion, hazard insurance and flood insurance, in each case where appropriate.

Additionally, we have implemented procedures to timely identify loans that may become problematic in order to ensure the most beneficial resolution to the Company. Asset quality is monitored by our credit risk management department and evaluated based on quantitative and subjective factors such as the timeliness of contractual payments received. Additional factors that are considered, particularly with commercial loans over $500,000, include the financial condition and liquidity of individual borrowers and guarantors, if any, and the value of our collateral. To facilitate the oversight of asset quality, loans are categorized based on the number of days past due and on an internal risk rating system, and both are discussed in more detail below.

Non 310-30 special mention loans increased $19.3 million from December 31, 2016 due to upgrades from substandard and doubtful within the commercial and industrial and energy sectors and downgrades from pass within the agriculture and owner-occupied commercial real estate sectors. Non 310-30 substandard loans decreased $19.7 million from December 31, 2016 primarily due to paydowns, payoffs and upgrades to special mention within the commercial and industrial, owner-occupied commercial real estate and energy sectors. Non 310-30 doubtful loans decreased $4.3 million from December 31, 2016 due to energy loan charge-offs during the period.

In the event of borrower default, we may seek recovery in compliance with state lending laws, the respective loan agreements, and credit monitoring and remediation procedures that may include modifying or restructuring a loan from its original terms, for economic or legal reasons, to provide a concession to the borrower from their original terms due to borrower financial difficulties in order to facilitate repayment. Such restructured loans are considered “troubled debt restructurings” or "TDRs" in accordance with ASC 310-40, Troubled Debt Restructurings by Creditors. Under this guidance, modifications to loans that fall within the scope of ASC 310-30 are not considered troubled debt restructurings, regardless of otherwise meeting the definition of a troubled debt restructuring. Assets that have been foreclosed on or acquired through deed-in-lieu of foreclosure are classified as OREO until sold, and are carried at the lower of the related loan balance or the fair value of the collateral less estimated costs to sell, with any initial valuation adjustments charged to the ALL and any subsequent declines in carrying value charged to impairments on OREO.

Non-performing Assets

Non-performing assets consist of non-accrual loans, troubled debt restructurings on non-accrual, OREO and other repossessed assets.  Non-accrual loans and troubled debt restructurings on non-accrual accounted for under ASC 310-30, as described below, may be excluded from our non-performing assets to the extent that the cash flows of the loan pools are still estimable. Interest income that would have been recorded had non-accrual loans performed in accordance with their original contract terms during the three and nine months ended September 30, 2017 was $0.4 million and $1.2 million, respectively, and $0.5 million and $1.5 million during the three and nine months ended September 30, 2016, respectively.

All loans accounted for under ASC 310-30 were classified as performing assets at September 30, 2017, as the carrying values of the respective loan or pool of loans cash flows were considered estimable and probable of collection. Therefore, interest income, through accretion of the difference between the carrying value of the loans in the pool and the pool's expected future cash flows, is being recognized on all acquired loans accounted for under ASC 310-30.

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The following table sets forth the non-performing assets as of the dates presented:

	September 30, 2017		December 31, 2016
Non-accrual loans:
Commercial:
Commercial and industrial	$	534	$	1,160
Owner occupied commercial real estate		2,780		2,054
Agriculture		815		297
Energy		—		6,517
Total commercial		4,129		10,028
Commercial real estate non-owner occupied		797		66
Residential real estate		4,604		3,875
Consumer		27		40
Total non-accrual loans, excluding restructured loans		9,557		14,009
Restructured loans on non-accrual:
Commercial:
Commercial and industrial		3,249		7,527
Owner occupied commercial real estate		49		2
Agriculture		1,294		1,608
Energy		3,551		6,128
Total commercial		8,143		15,265
Commercial real estate non-owner occupied		—		—
Residential real estate		1,284		1,301
Consumer		173		142
Total restructured loans on non-accrual		9,600		16,708
Total non-performing loans		19,157		30,717
OREO		12,330		15,662
Total non-performing assets	$	31,487	$	46,379
Loans 90 days or more past due and still accruing interest	$	156	$	—
Accruing restructured loans	$	7,620	$	5,766
ALL	$	30,047	$	29,174
Total non-performing loans to total loans		0.61%		1.07%
Loans 90 days or more past due and still accruing interest to total loans		0.00%		0.00%
Total non-performing assets to total loans and OREO		1.01%		1.61%
ALL to non-performing loans		156.85%		94.98%

During the nine months ended September 30, 2017, total non-performing loans decreased $11.6 million, or 37.6% from December 31, 2016 due to charge-offs of two previously identified energy loans totaling $6.1 million and one previously identified commercial and industrial loan totaling $2.5 million. In addition, one previously identified energy loan of $2.4 million was placed on accrual during the third quarter of 2017. During the nine months ended September 30, 2017, accruing TDRs increased $1.9 million primarily due to increases in the commercial segment totaling $2.4 million, partially offset by decreases of $0.5 million in the residential real estate segment. During the nine months ended September 30, 2017, $0.8 million of loans were foreclosed or otherwise repossessed and transferred to OREO and $5.6 million of OREO was sold resulting in a net gain of $2.3 million. OREO write-downs of $0.8 million were recorded during the nine months ended September 30, 2017.

Total non-performing assets to total loans and OREO was 1.01% and 1.61% at September 30, 2017 and December 31, 2016, respectively. Included in this ratio at September 30, 2017 are acquired non-performing loans and OREO of 0.55% compared to 0.71% at December 31, 2016. Acquired OREO has been a source of income for the Company as net OREO gains totaled $2.3 million and $4.1 million for the nine months ended September 30, 2017 and 2016, respectively. In addition, the ratio includes 0.11% and 0.44% of non-performing energy loans at September 30, 2017 and December 31, 2016. The remaining non performing assets to total loans and OREO were 0.35% at September 30, 2017 and 0.46% and December 31, 2016.

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Past Due Loans

Past due status is monitored as an indicator of credit deterioration. Loans are considered past due or delinquent when the contractual principal or interest due in accordance with the terms of the loan agreement remains unpaid after the due date of the scheduled payment. Loans that are 90 days or more past due and not accounted for under ASC 310-30 are put on non-accrual status unless the loan is well secured and in the process of collection. The table below shows the past due status of loans not accounted for under ASC 310-30, based on contractual terms of the loans as of September 30, 2017 and December 31, 2016:

	September 30, 2017		December 31, 2016
Loans 30-89 days past due and still accruing interest	$	1,901	$	2,296
Loans 90 days past due and still accruing interest		156		—
Non-accrual loans		19,157		30,717
Total past due and non-accrual loans	$	21,214	$	33,013
Total 90 days past due and still accruing interest and non-accrual loans to total non 310-30 loans		0.64%		1.13%
Total non-accrual loans to total non 310-30 loans		0.64%		1.13%
% of total past due and non-accrual loans that carry fair value marks		17.72%		10.75%

Loans 30-89 days past due and still accruing interest decreased $0.4 million from December 31, 2016 to September 30, 2017, and loans 90 days or more past due and still accruing interest increased $0.2 million from December 31, 2016 to September 30, 2017, for a collective decrease in total past due loans of $0.2 million. Non-accrual loans decreased $11.6 million at September 30, 2017 compared to December 31, 2016, further described within the Non-Performing Assets discussion of Management’s Discussion and Analysis. There were no ASC 310-30 loan pools past due or on non-accrual at September 30, 2017.

Allowance for Loan Losses

The ALL represents the amount that we believe is necessary to absorb probable losses inherent in the loan portfolio at the balance sheet date and involves a high degree of judgment and complexity. Determination of the ALL is based on an evaluation of the collectability of loans, the realizable value of underlying collateral, economic conditions, historical net loan losses, the estimated loss emergence period, estimated default rates, any declines in cash flow assumptions from acquisition, loan structures, growth factors and other elements that warrant recognition and, to the extent applicable, prior loss experience. The ALL is critical to the portrayal and understanding of our financial condition, liquidity and results of operations. The determination and application of the ALL accounting policy involves judgments, estimates, and uncertainties that are subject to change. Changes in these assumptions, estimates or the conditions surrounding them may have a material impact on our financial condition, liquidity or results of operations.

In accordance with the applicable guidance for business combinations, acquired loans were recorded at their acquisition date fair values, which were based on expected future cash flows and included an estimate for future loan losses; therefore, no ALL was recorded as of the acquisition date. Any estimated losses on acquired loans that arise after the acquisition date are reflected in a charge to the provision for loan losses on the consolidated statements of operations.

Loans accounted for under the accounting guidance provided in ASC 310-30 have been grouped into pools based on the predominant risk characteristics of purpose and/or type of loan. The timing and receipt of expected principal, interest and any other cash flows of these loans are periodically remeasured and the expected future cash flows of the collective pools are compared to the carrying value of the pools. To the extent that the expected future cash flows of each pool is less than the book value of the pool, an allowance for loan losses will be established through a charge to the provision for loan losses. If the remeasured expected future cash flows are greater than the book value of the pools, then the improvement in the expected future cash flows is accreted into interest income over the remaining expected life of the loan pool. During the nine months ended September 30, 2017 and 2016, these re-measurements resulted in overall increases in expected cash flows in certain loan pools, which, absent previous valuation allowances within the same pool, are reflected in increased accretion as well as an increased amount of accretable yield and are recognized over the expected remaining lives of the underlying loans as an adjustment to yield.

For all loans not accounted for under ASC 310-30, the determination of the ALL follows a process to determine the appropriate level of ALL that is designed to account for changes in credit quality and other risk factors. This process provides an ALL consisting of a specific allowance component based on certain individually evaluated loans and a general allowance component based on estimates of reserves needed for all other loans, segmented based on similar risk characteristics.

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Impaired loans less than $250,000 are included in the general allowance population. Impaired loans over $250,000 are subject to individual evaluation on a regular basis to determine the need, if any, to allocate a specific reserve to the impaired loan. Typically, these loans consist of commercial, commercial real estate and agriculture loans and exclude homogeneous loans such as residential real estate and consumer loans. Specific allowances are determined by collectively analyzing:

	the borrower's resources, ability, and willingness to repay in accordance with the terms of the loan agreement;
	the likelihood of receiving financial support from any guarantors;
	the adequacy and present value of future cash flows, less disposal costs, of any collateral;
	the impact current economic conditions may have on the borrower's financial condition and liquidity or the value of the collateral.

In evaluating the loan portfolio for an appropriate ALL level, unimpaired loans are grouped into segments based on broad characteristics such as primary use and underlying collateral. We have identified four primary loan segments that are further stratified into eleven loan classes to provide more granularity in analyzing loss history and to allow for more definitive qualitative adjustments based upon specific factors affecting each loan class. Following are the loan classes within each of the four primary loan segments:

	Non-owner occupied
Commercial	commercial real estate	Residential real estate	Consumer
Commercial and industrial	Construction	Senior lien	Total Consumer
Owner occupied commercial real estate	Acquisition and development	Junior lien
Agriculture	Multifamily
Energy	Non-owner occupied

Appropriate ALL levels are determined by segment and class utilizing risk ratings, loss history, peer loss history and qualitative adjustments. The qualitative adjustments consider the following risk factors:

	economic/external conditions;
	loan administration, loan structure and procedures;
	risk tolerance/experience;
	loan growth;
	trends;
	concentrations; and
	other.

Management derives an estimated annual loss rate adjusted for an estimated loss emergence period based on historical loss data categorized by segment and class. The loss rates are applied at the loan segment and class level. Our historical loss history began in 2012, resulting in minimal losses in our originated portfolio. In order to address this lack of historical data, we incorporate not only our own historical loss rates since the beginning of 2012, but we also utilize peer historical loss data, including a historical average net charge-off ratio on each loan type, relying on the Uniform Bank Performance Reports compiled by the Federal Financial Institutions Examinations Council (“FFIEC”). We may also apply a long-term estimated loss rate to pass rated credits as necessary to account for inherent risks to the portfolio. For originated loans, we assign a slightly higher portion of our loss history, but still rely on the peer loss history to account for our limited historical data. For acquired loans, we use solely our internal loss history as those loans are more seasoned and more of the actual losses in the portfolio have been from the acquired portfolio.

The collective resulting ALL for loans not accounted for under ASC 310-30 is calculated as the sum of the specific reserves and the general reserves. While these amounts are calculated by individual loan or segment and class, the entire ALL is available for any loan that, in our judgment, should be charged-off.

Non 310-30 ALL

During the three and nine months ended September 30, 2017, we recorded $4.0 million and $9.9 million, respectively, of provision for loan losses for loans not accounted for under ASC 310-30. The three months ended September 30, 2017 provision for loan losses included $2.9 million related to one non-accrual energy loan as we are resolving the remaining problem energy loans, and general reserves on net loan growth. The nine months ended September 30, 2017 provision included $6.3 million of specific reserves on two previously identified energy loans and one previously identified commercial and industrial loan. The remaining provision for the nine months ended September 30, 2017 was for general reserves on loan growth. Net charge-offs for non ASC 310-30 loans during the

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three and nine months ended September 30, 2017 totaled $8.8 million and $8.8 million, respectively, and were related to the loan relationships discussed above. Specific reserves on impaired loans totaled $1.1 million and $2.4 million at September 30, 2017 and December 31, 2016, respectively.

During the three and nine months ended September 30, 2016, we recorded $5.3 million and $23.2 million, respectively, of provision for loan losses for loans not accounted for under ASC 310-30, which primarily reflects specific reserves on certain non-performing loans and reserves to support loan growth. The three months ended September 30, 2016 provision was driven by loan growth and an increase in the energy sector provision of $3.9 million, primarily driven by one loan that was partially charged-off during the quarter. The nine months ended September 30, 2016 provision was driven by loan growth and $19.0 million of provision against the energy sector. Net charge-offs for non ASC 310-30 loans during the three months and nine months ended September 30, 2016 totaled $17.4 million and $12.4 million, respectively, and were driven by energy sector loans. 

310-30 ALL

During the three and nine months ended September 30, 2017, loans accounted for under ASC 310-30 had $142 thousand and $225 thousand of recoupment, respectively. The recoupment was due to an improvement of expected future cash flows during the period.

During the three and nine months ended September 30, 2016, loans accounted for under ASC 310-30 had $18 thousand of provision and $787 thousand of recoupment, respectively. The recoupment was driven by a previously impaired agriculture pool.

Total ALL

After considering the above mentioned factors, we believe that the ALL of $30.0 million and $29.2 million is adequate to cover probable losses inherent in the loan portfolio at September 30, 2017 and December 31, 2016, respectively. However, it is likely that future adjustments to the ALL will be necessary and any changes to the assumptions, circumstances or estimates used in determining the ALL could adversely affect the Company's results of operations, liquidity or financial condition.

The following schedule presents, by class stratification, the changes in the ALL during the three months ended September 30, 2017 and 2016:

	September 30, 2017						September 30, 2016
	ASC		Non				ASC		Non
	310-30		310-30				310-30		310-30
	loans		loans		Total		Loans		Loans		Total
Beginning allowance for loan losses	$	142	$	34,817	$	34,959	$	231	$	39,875	$	40,106
Charge-offs:
Commercial		—		(8,618)		(8,618)		—		(17,204)		(17,204)
Commercial real estate non owner-occupied		—		—		—		—		—		—
Residential real estate		—		(16)		(16)		—		(166)		(166)
Consumer		—		(209)		(209)		(6)		(170)		(176)
Total charge-offs		—		(8,843)		(8,843)		(6)		(17,540)		(17,546)
Recoveries		—		51		51		—		168		168
Net recoveries (charge-offs)		—		(8,792)		(8,792)		(6)		(17,372)		(17,378)
(Recoupment) provision for loan loss		(142)		4,022		3,880		18		5,275		5,293
Ending allowance for loan losses	$	—	$	30,047	$	30,047	$	243	$	27,778	$	28,021
Ratio of annualized net charge-offs to average total loans during the period, respectively		0.00%		1.18%		1.13%		0.01%		2.64%		2.49%
Average total loans outstanding during the period	$	127,752	$	2,967,972	$	3,095,724	$	162,157	$	2,614,133	$	2,776,290

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The following schedule presents, by class stratification, the changes in the ALL during the nine months ended September 30, 2017 and 2016:

	September 30, 2017						September 30, 2016
	ASC		Non				ASC		Non
	310-30		310-30				310-30		310-30
	loans		loans		Total		loans		loans		Total
Beginning allowance for loan losses	$	225	$	28,949	$	29,174	$	1,077	$	26,042	$	27,119
Charge-offs:
Commercial		—		(8,638)		(8,638)		—		(20,684)		(20,684)
Commercial real estate non-owner occupied		—		—		—		(41)		(276)		(317)
Residential real estate		—		(26)		(26)		—		(363)		(363)
Consumer		—		(510)		(510)		(6)		(558)		(564)
Total charge-offs		—		(9,174)		(9,174)		(47)		(21,881)		(21,928)
Recoveries		—		347		347		—		464		464
Net charge-offs		—		(8,827)		(8,827)		(47)		(21,417)		(21,464)
(Recoupment) provision for loan loss		(225)		9,925		9,700		(787)		23,153		22,366
Ending allowance for loan losses	$	—	$	30,047	$	30,047	$	243	$	27,778	$	28,021
Ratio of annualized net charge-offs to average total loans during the period, respectively		0.00%		0.41%		0.39%		0.04%		1.16%		1.08%
Ratio of ALL to total loans outstanding at period end, respectively		0.00%		1.00%		0.96%		0.15%		1.04%		0.99%
Ratio of ALL to total non-performing loans at period end, respectively		0.00%		156.84%		156.84%		0.00%		123.58%		124.66%
Total loans	$	125,596	$	2,994,947	$	3,120,543	$	157,663	$	2,664,892	$	2,822,555
Average total loans outstanding during the period	$	135,485	$	2,857,579	$	2,993,064	$	175,694	$	2,472,662	$	2,648,356
Non-performing loans	$	—	$	19,157	$	19,157	$	—	$	22,478	$	22,478

The following table presents the allocation of the ALL and the percentage of the total amount of loans in each loan category listed as of the dates presented:

	September 30, 2017
						ALL as a %
	Total loans		% of total loans	Related ALL		of total ALL
Commercial	$	1,807,883	57.9%	$	20,112	66.9%
Commercial real estate non-owner occupied		561,654	18.0%		5,520	18.4%
Residential real estate		724,374	23.2%		4,142	13.8%
Consumer		26,632	0.9%		273	0.9%
Total	$	3,120,543	100.0%	$	30,047	100.0%

	December 31, 2016
						ALL as a %
	Total loans		% of total loans	Related ALL		of total ALL
Commercial	$	1,560,430	54.6%	$	18,821	64.6%
Commercial real estate non-owner occupied		526,792	18.4%		5,642	19.3%
Residential real estate		744,885	26.0%		4,387	15.0%
Consumer		28,814	1.0%		324	1.1%
Total	$	2,860,921	100.0%	$	29,174	100.0%

The ALL allocated to commercial loans increased to 66.9% at September 30, 2017 from 64.6% at December 31, 2016, due to $9.9 million of provision driven by specific reserves of $6.3 million on two previously identified energy loans and one previously identified commercial and industrial loan. The provision was primarily offset by $8.6 million of net charge-offs within the energy and commercial and industrial loan portfolios during the period.

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Other Assets

Significant components of other assets were as follows as of the periods indicated:

					Increase (decrease)
	September 30, 2017		December 31, 2016		Amount		% Change
Bank-owned life insurance	$	63,933	$	62,516	$	1,417	2.3%
Deferred tax asset		50,694		52,810		(2,116)	(4.0)%
Derivative asset		11,412		11,715		(303)	(2.6)%
Accrued interest on loans		13,571		10,020		3,551	35.4%
Accrued income taxes receivable		4,682		5,252		(570)	(10.9)%
Accrued interest on interest bearing bank deposits and investment securities		2,471		2,542		(71)	(2.8)%
Other miscellaneous assets		8,929		8,345		584	7.0%
Minority interest in participated other real estate owned		—		1,578		(1,578)	(100.0)%
Total other assets	$	155,692	$	154,778	$	914	0.6%

Other assets totaled $155.7 million and $154.8 million at September 30, 2017 and December 31, 2016, respectively, representing an increase of $0.9 million, or 0.6%, during the nine months ended September 30, 2017. The increase was driven by accrued interest on loans and an increase in bank-owned life insurance, partially offset by decreases in deferred tax assets, income taxes receivable and the sale of minority interest in other real estate owned. The deferred tax asset and accrued income taxes receivable decreased primarily due to tax benefits from share-based compensation activity.

Other Liabilities

Significant components of other liabilities were as follows as of the dates indicated:

					Increase (decrease)
	September 30, 2017		December 31, 2016		Amount		% Change
Pending loan purchase settlement	$	11,617	$	5,063	$	6,554	129.4%
Accrued expenses		12,404		13,040		(636)	(4.9)%
Accrued interest payable		6,676		4,973		1,703	34.2%
Derivative liability		5,427		3,466		1,961	56.6%
Other miscellaneous liabilities		14,333		10,990		3,343	30.4%
Total other liabilities	$	50,457	$	37,532	$	12,925	34.4%

Other liabilities totaled $50.5 million and $37.5 million at September 30, 2017 and December 31, 2016, respectively, and increased $12.9 million, or 34.4%, during the nine months ended September 30, 2017. The increase was driven by increases in pending loan purchase settlement, other miscellaneous liabilities, derivative liability, and accrued interest payable. Other miscellaneous liabilities increased largely due to timing of short-term liabilities of $1.9 million and an increase in collateral reserves of $1.5 million. Refer to note 14 of our consolidated financial statements for further discussion of the derivative liability.

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Deposits and other borrowings

Deposits from banking clients serve as a primary funding source for our banking operations and our ability to gather and manage deposit levels is critical to our success. Deposits not only provide a low cost funding source for our loans, but also provide a foundation for the client relationships that are critical to future loan growth. The following table presents information regarding our deposit composition at September 30, 2017 and December 31, 2016:

							Increase (decrease)
	September 30, 2017			December 31, 2016			Amount		% Change
Non-interest bearing demand deposits	$	910,675	23.1%	$	846,744	21.9%	$	63,931	7.6%
Interest bearing demand deposits		431,786	10.9%		427,538	11.1%		4,248	1.0%
Savings accounts		444,258	11.3%		376,046	9.7%		68,212	18.1%
Money market accounts		1,026,456	26.0%		1,046,275	27.0%		(19,819)	(1.9)%
Total transaction deposits		2,813,175	71.3%		2,696,603	69.7%		116,572	4.3%
Time deposits < $100,000		648,312	16.4%		704,673	18.2%		(56,361)	(8.0)%
Time deposits > $100,000		484,855	12.3%		467,373	12.1%		17,482	3.7%
Total time deposits		1,133,167	28.7%		1,172,046	30.3%		(38,879)	(3.3)%
Total deposits	$	3,946,342	100.0%	$	3,868,649	100.0%	$	77,693	2.0%

At December 31, 2016, deposits totaling $103.0 million were held-for-sale, including $51.6 million of time deposits. The sale of these deposits was completed in connection with the four banking center divestitures in the second quarter of 2017.

The following table shows scheduled maturities of certificates of deposit with denominations greater than or equal to $100,000 as of September 30, 2017:

	September 30, 2017
Three months or less	$	81,241
Over 3 months through 6 months		80,623
Over 6 months through 12 months		115,418
Thereafter		207,573
Total time deposits > $100,000	$	484,855

Total deposits increased $77.7 million during the nine months ended September 30, 2017. Adjusting for the banking center divestitures during the second quarter of 2017, total deposits increased $115.0 million, or 3.1% from the prior year. Money market accounts and time deposits decreased $19.8 million and $38.9 million, from December 31, 2016, respectively, driven by $19.0 and $48.4 million sold from the banking center divestitures, respectively. The mix of transaction deposits (defined as total deposits less time deposits) to total deposits improved to 71.3% at September 30, 2017, from 69.7% at December 31, 2016, as we continued to focus on developing long-term banking relationships. At September 30, 2017 and December 31, 2016, time deposits that were scheduled to mature within 12 months totaled $690.7 million and $788.8 million, respectively. Of the $690.7 million in time deposits scheduled to mature within 12 months at September 30, 2017, $277.3 million were in denominations of $100,000 or more, and $413.4 million were in denominations less than $100,000.

As of September 30, 2017 and December 31, 2016, the Company sold securities under agreements to repurchase totaling $92.8 million and $92.0 million, respectively. In addition, as a member of the FHLB, the Bank has access to a line of credit and term financing from the FHLB with total available credit of $787.4 million. At September 30, 2017 and December 31, 2016, the Bank had $129.1 million and $25.0 million in term advances from the FHLB, respectively. The term advances have fixed rates of 1.31% - 2.33%, with maturity dates of 2018 - 2020.

Results of Operations

Our net income depends largely on net interest income, which is the difference between interest income from interest earning assets and interest expense on interest bearing liabilities. Our results of operations are also affected by provisions for loan losses and non-interest income, such as service charges, bank card income, swap fee income, and gain on sale of mortgages, net. Our primary operating expenses, aside from interest expense, consist of salaries and benefits, occupancy costs, telecommunications data processing expense and intangible asset amortization. Any expenses related to the resolution of problem assets are also included in non-interest expense.

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Overview of Results of Operations

We recorded net income of $7.2 million and $24.7 million, or $0.26 and $0.89 per diluted share, during the three and nine months ended September 30, 2017, respectively, compared to net income of $8.3 million and $13.1 million, or $0.30 and $0.45 per diluted share, during the three and nine months ended September 30, 2016, respectively. Fully taxable equivalent net interest income totaled $39.4 million and $113.7 million for the three and nine months ended September 30, 2017, respectively, and increased $1.3 million and $0.8 million from the three and nine months ended September 30, 2016, respectively.  

Provision for loan loss expense on non 310-30 loans was $4.0 million and $9.9 million during the three and nine months ended September 30, 2017, respectively, compared to $5.3 million and $23.2 million during the three and nine months ended September 30, 2016, respectively, a decrease of $1.3 million and $13.3 million, respectively. The decrease in provision for the three and nine months ended September 30, 2017 was driven by a reduction in the provision for energy loans during the current periods.

Non-interest income was $9.6 million and $30.2 million during the three and nine months ended September 30, 2017, respectively, compared to $11.6 million and $30.0 million during the three and nine months ended September 30, 2016, respectively, a decrease of $2.0 million and an increase of $0.2 million from the three and nine months ended September 30, 2016, respectively. The decrease in non-interest income during the three months ended September 30, 2017, compared to the prior year three months, was driven by a $1.5 million decrease in OREO related income and a $0.5 million decrease in other non-interest income. The nine months ended September 30, 2017 increase was driven by a $1.9 million increase in other non-interest income partially offset by a decrease of $1.7 million in OREO related income.

Non-interest expense totaled $34.6 million and $102.7 million during the three and nine months ended September 30, 2017, compared to $33.4 million and $101.6 million during the three and nine months ended September 30, 2016, an increase of $1.2 million and $1.1 million from the prior periods, respectively. The increase in non-interest expense during the three and nine months ended September 30, 2017 was primarily due to lower gain on sale of OREO of $1.6 million and $1.9 million, respectively, as well as $0.4 million and $0.7 million of acquisition-related costs, respectively.

Net Interest Income

We regularly review net interest income metrics to provide us with indicators of how the various components of net interest income are performing. We regularly review: (i) our loan mix and the yield on loans; (ii) the investment portfolio and the related yields; (iii) our deposit mix and the cost of deposits; and (iv) net interest income simulations for various forecast periods.

The following tables present the components of net interest income for the periods indicated. The tables include: (i) the average daily balances of interest earning assets and interest bearing liabilities; (ii) the average daily balances of non-interest earning assets and non-interest bearing liabilities; (iii) the total amount of interest income earned on interest earning assets on a fully taxable equivalent basis; (iv) the total amount of interest expense incurred on interest bearing liabilities; (v) the resultant average yields and rates; (vi) net interest spread; and (vii) net interest margin, which represents the difference between interest income and interest expense, expressed as a percentage of interest earning assets. The effects of trade-date accounting of investment securities for which the cash had not settled are not considered interest earning assets and are excluded from this presentation for time frames prior to their cash settlement, as are the market value adjustments on the investment securities available-for-sale.

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The table below presents the components of net interest income on a fully taxable equivalent basis for the three months ended September 30, 2017 and 2016:

	For the three months ended					For the three months ended
	September 30, 2017					September 30, 2016
	Average				Average	Average				Average
	balance		Interest		rate	balance		Interest		rate
Interest earning assets:
ASC 310-30 loans	$	127,752	$	5,667	17.74%	$	162,157	$	8,597	21.21%
Non 310-30 loans FTE(1)(2)(3)(4)(5)		2,977,214		31,914	4.25%		2,630,064		25,893	3.92%
Investment securities available-for-sale		848,847		4,011	1.89%		1,003,347		4,552	1.81%
Investment securities held-to-maturity		286,604		1,995	2.78%		371,164		2,543	2.74%
Other securities		16,843		234	5.56%		13,003		160	4.92%
Interest earning deposits and securities purchased under agreements to resell		87,114		276	1.26%		47,997		60	0.50%
Total interest earning assets FTE(4)	$	4,344,374	$	44,097	4.03%	$	4,227,732	$	41,805	3.93%
Cash and due from banks	$	67,382				$	73,709
Other assets		313,630					339,837
Allowance for loan losses		(35,103)					(40,509)
Total assets	$	4,690,283				$	4,600,769
Interest bearing liabilities:
Interest bearing demand, savings and money market deposits	$	1,857,777	$	1,503	0.32%	$	1,799,085	$	1,189	0.26%
Time deposits		1,131,326		2,565	0.90%		1,174,269		2,290	0.78%
Securities sold under agreements to repurchase		91,737		46	0.20%		117,028		37	0.13%
Federal Home Loan Bank advances		144,136		567	1.56%		50,766		184	1.44%
Total interest bearing liabilities	$	3,224,976	$	4,681	0.58%	$	3,141,148	$	3,700	0.47%
Demand deposits	$	874,750				$	824,848
Other liabilities		39,799					60,199
Total liabilities		4,139,525					4,026,195
Shareholders' equity		550,758					574,574
Total liabilities and shareholders' equity	$	4,690,283				$	4,600,769
Net interest income FTE(4)			$	39,416				$	38,105
Interest rate spread FTE(4)					3.45%					3.46%
Net interest earning assets	$	1,119,398				$	1,086,584
Net interest margin FTE(4)					3.60%					3.59%
Ratio of average interest earning assets to average interest bearing liabilities		134.71%					134.59%

(1)	Originated loans are net of deferred loan fees, less costs, which are included in interest income over the life of the loan.
(2)	Includes originated loans with average balances of $2,857,318 and $2,460,701, interest income of $28,375 and $22,339, with tax equivalent yields of 4.15% and 3.78% for the three months ended September 30, 2017 and 2016, respectively.
(3)	Non 310-30 loans include loans held-for-sale. Average balances during the three months ended September 30, 2017 and 2016 were $9,242 and $15,536, respectively, and interest income was $127 and $238 for the same periods, respectively.
(4)	Presented on a fully taxable equivalent basis using the statutory tax rate of 35%. The taxable equivalent adjustments included above are $1,518 and $1,041 for the three months ended September 30, 2017 and 2016, respectively.
(5)	Loan fees included in interest income totaled $1,066 and $1,525 for the three months ended September 30, 2017 and 2016, respectively.

Net interest income totaled $37.9 million and $37.1 million for the three months ended September 30, 2017 and 2016, respectively. On a fully taxable equivalent basis, net interest income totaled $39.4 million for the three months ended September 30, 2017, increasing $1.3 million, or 3.4%, from the three months ended September 30, 2016, benefitting from the continued shift of earning assets into the originated loan portfolio. The fully taxable equivalent net interest margin widened 0.01% to 3.60%.

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Average loans of $3.1 billion comprised 71.5% of total average interest earning assets during the three months ended September 30, 2017, compared to $2.8 billion, or 66.0%, of total average interest earning assets during the three months ended September 30, 2016. The increase in average loan balances is due to loan originations outpacing the exit of the acquired problem loans. The non 310-30 loan portfolio yield increased to 4.25% during the three months ended September 30, 2017, compared to 3.92% during the same period in the prior year, benefiting from higher yields on our variable rate loans, primarily driven by the short-term market rate increases. The yield on the ASC 310-30 loan portfolio was 17.74% during the three months ended September 30, 2017, compared to 21.21% during the same period the prior year. This decrease was attributable to paydowns of higher-yielding 310-30 loans and $1.8 million of accelerated accretion income on 310-30 loans during the third quarter of 2016.

Average investment securities comprised 26.1% of total interest earning assets during the three months ended September 30, 2017, compared to 32.5% during the three months ended September 30, 2016. The decrease in the investment portfolio reflects the shift of the interest-earning assets as the runoff of the investment portfolio is used to fund loan originations. Average short-term investments, comprised of interest earning deposits and securities purchased under agreements to resell, increased to 2.0% of interest earning assets compared to 1.1% during the prior period.

Average balances of interest bearing liabilities increased $83.8 million during the three months ended September 30, 2017, compared to the three months ended September 30, 2016, driven by increases of $93.4 million in Federal Home Loan Bank advances and $58.7 million in interest bearing demand, saving and money market deposits, partially offset by a decrease in time deposits of $42.9 million, and a decrease in securities sold under agreements to repurchase of $25.3 million. Adjusting for banking center divestitures, interest bearing demand, savings and money market deposits increased $96.2 million and time deposits increased $9.7 million. Total interest expense related to interest bearing liabilities was $4.7 million during the three months ended September 30, 2017, compared to $3.7 million during the three months ended September 30, 2016, at an average cost of 0.58% and 0.47%, respectively. Additionally, the average cost of deposits increased six basis points to 0.42% for the three months ended September 30, 2017 from the same period in the prior year, primarily due to higher-cost of savings, money market and time deposits.

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The table below presents the components of net interest income on a fully taxable equivalent basis for the nine months ended September 30, 2017 and 2016:

	For the nine months ended					For the nine months ended
	September 30, 2017					September 30, 2016
	Average				Average	Average				Average
	balance		Interest		rate	balance		Interest		rate
Interest earning assets:
ASC 310-30 loans	$	135,485	$	17,718	17.44%	$	175,694	$	26,653	20.23%
Non 310-30 loans FTE(1)(2)(3)(4)(5)		2,866,247		88,696	4.14%		2,484,651		72,877	3.92%
Investment securities available-for-sale		895,112		12,730	1.90%		1,071,029		14,810	1.84%
Investment securities held-to-maturity		305,441		6,378	2.78%		394,626		8,278	2.80%
Other securities		15,307		619	5.39%		15,572		581	4.97%
Interest earning deposits and securities purchased under agreements to resell		87,762		687	1.05%		159,748		644	0.54%
Total interest earning assets FTE(4)	$	4,305,354	$	126,828	3.94%	$	4,301,320	$	123,843	3.85%
Cash and due from banks	$	67,046				$	72,051
Other assets		317,702					334,190
Allowance for loan losses		(32,208)					(35,554)
Total assets	$	4,657,894				$	4,672,007
Interest bearing liabilities:
Interest bearing demand, savings and money market deposits	$	1,875,143	$	4,294	0.31%	$	1,872,116	$	3,689	0.26%
Time deposits		1,152,550		7,465	0.87%		1,180,275		6,617	0.75%
Securities sold under agreements to repurchase		85,077		119	0.19%		112,527		114	0.14%
Federal Home Loan Bank advances		108,148		1,261	1.56%		43,615		515	1.58%
Total interest bearing liabilities	$	3,220,918	$	13,139	0.55%	$	3,208,533	$	10,935	0.46%
Demand deposits	$	852,913				$	813,407
Other liabilities		39,401					52,861
Total liabilities		4,113,232					4,074,801
Stockholders' equity		544,662					597,206
Total liabilities and shareholders’ equity	$	4,657,894				$	4,672,007
Net interest income FTE(4)			$	113,689				$	112,908
Interest rate spread FTE(4)					3.39%					3.39%
Net interest earning assets	$	1,084,436				$	1,092,787
Net interest margin FTE(4)					3.53%					3.51%
Ratio of average interest earning assets to average interest bearing liabilities		133.67%					134.06%

(1)	Originated loans are net of deferred loan fees, less costs, which are included in interest income over the life of the loan.
(2)	Includes originated loans with average balances of $2,734,388 and $2,301,164, interest income of $78,319 and $61,950, with tax equivalent yields of 4.03% and 3.77% for the nine months ended September 30, 2017 and 2016, respectively.
(3)	Non 310-30 loans include loans held-for-sale. Average balances during the nine months ended September 30, 2017 and 2016 were $8,668 and $11,846, respectively, and interest income was $406 and $520 for the same periods, respectively.
(4)	Presented on a fully taxable equivalent basis using the statutory tax rate of 35%. The taxable equivalent adjustments included above are $4,176 and $3,053 for the nine months ended September 30, 2017 and 2016, respectively.
(5)	Loan fees included in interest income totaled $3,009 and $3,304 for the nine months ended September 30, 2017 and 2016, respectively.

Net interest income totaled $109.5 million and $109.9 million for the nine months ended September 30, 2017 and 2016, respectively. On a fully taxable equivalent basis, net interest income totaled $113.7 million for the nine months ended September 30, 2017 and increased $0.8 million from the nine months ended September 30, 2016, benefitting from the continued shift of earning assets into the originated loan portfolio. The fully taxable equivalent net interest margin widened 0.02% to 3.53%.

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Average loans comprised $3.0 billion, or 69.7%, of total average interest earning assets during the nine months ended September 30, 2017, compared to $2.7 billion, or 61.8%, of total average interest earning assets during the nine months ended September 30, 2016. The increase in average loan balances is reflective of loan originations outpacing the exit of the acquired problem loans. The non 310-30 loan portfolio yield increased to 4.14% during the nine months ended September 30, 2017, compared to 3.92% during the same period in the prior year, benefitting from higher yields in our variable rate loans, primarily driven by the short-term market rate increases. The yield on the ASC 310-30 loan portfolio was 17.44% during the nine months ended September 30, 2017, compared to 20.23% during the same period the prior year. This decrease was attributable to paydowns of higher-yielding 310-30 loans and $2.8 million of accelerated accretion income during the nine months ended 2016.

Average investment securities comprised 27.9% of total interest earning assets during the nine months ended September 30, 2017, compared to 34.1% during the nine months ended September 30, 2016. The decrease in the investment portfolio reflects the shift of the interest-earning assets as the runoff of the investment portfolio is used to fund loan originations. Short-term investments, comprised of interest earning deposits and securities purchased under agreements to resell, decreased to 2.0% of interest earning assets compared to 3.7% during the prior period, primarily due to a decrease in client repurchase agreements on deposit.

Average balances of interest bearing liabilities increased $12.4 million during the nine months ended September 30, 2017, compared to the nine months ended September 30, 2016, driven by a $64.5 million increase in Federal Home Loan Bank advances, partially offset by a $27.7 million decrease in time deposits and a $27.5 million decrease in securities sold under agreements to repurchase. Adjusting for banking center divestitures, interest bearing demand, savings and money market deposits increased $24.6 million and time deposits increased $4.1 million. Total interest expense related to interest bearing liabilities was $13.1 million during the nine months ended September 30, 2017, compared to $10.9 million during the nine months ended September 30, 2016, at an average cost of 0.55% and 0.46%, respectively. Additionally, the average cost of deposits was 0.41%, increasing from 0.36% in the prior year due to higher cost of savings, money market and time deposits.

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The following table summarizes the changes in net interest income on a fully taxable equivalent basis by major category of interest earning assets and interest bearing liabilities, identifying changes related to volume and changes related to rates for the three and nine months ended September 30, 2017 compared to the three and nine months ended September 30, 2016:

	Three months ended  September 30, 2017						Nine months ended September 30, 2017
	compared to						compared to
	Three months ended  September 30, 2016						Nine months ended September 30, 2016
	Increase (decrease) due to						Increase (decrease) due to
	Volume		Rate		Net		Volume		Rate		Net
Interest income:
ASC 310-30 loans	$	(1,526)	$	(1,404)	$	(2,930)	$	(5,258)	$	(3,677)	$	(8,935)
Non 310-30 loans FTE(1)(2)(3)		3,721		2,300		6,021		11,808		4,011		15,819
Investment securities available-for-sale		(730)		189		(541)		(2,502)		422		(2,080)
Investment securities held-to-maturity		(589)		41		(548)		(1,862)		(38)		(1,900)
Other securities		53		21		74		(11)		49		38
Interest earning deposits and securities purchased under agreements to resell		124		92		216		(564)		607		43
Total interest income	$	1,053	$	1,239	$	2,292	$	1,611	$	1,374	$	2,985
Interest expense:
Interest bearing demand, savings and money market deposits	$	47	$	267	$	314	$	7	$	598	$	605
Time deposits		(97)		372		275		(180)		1,028		848
Securities sold under agreements to repurchase		367		16		383		752		(6)		746
Federal Home Loan Bank advances		(13)		22		9		(38)		43		5
Total interest expense		304		677		981		541		1,663		2,204
Net change in net interest income	$	749	$	562	$	1,311	$	1,070	$	(289)	$	781

(1)	Originated loans are net of deferred loan fees, less costs, which are included in interest income over the life of the loan.
(2)	Non 310-30 loans include loans held-for-sale. Average balances during the three months ended September 30, 2017 and 2016 were $9,242 and $15,536, respectively, and interest income was $127 and $238 for the same periods, respectively. Average balances during the nine months ended September 30, 2017 and 2016 were $8,668 and $11,846, respectively, and interest income was $406 and $520 for the same periods, respectively.
(3)	Presented on a fully taxable equivalent basis using the statutory tax rate of 35%. The taxable equivalent adjustments included above are $1,518 and $1,041 for three months ended September 30, 2017 and 2016, respectively. The taxable equivalent adjustments included above are $4,176 and $3,053 for nine months ended September 30, 2017 and 2016, respectively.

Below is a breakdown of deposits and the average rates paid during the periods indicated:

	For the three months ended
	September 30, 2017			June 30, 2017			March 31, 2017			December 31, 2016			September 30, 2016
			Average			Average			Average			Average			Average
	Average		rate	Average		rate	Average		rate	Average		rate	Average		rate
	balance		paid	balance		paid	balance		paid	balance		paid	balance		paid
Non-interest bearing demand	$	874,750	0.00%	$	858,299	0.00%	$	825,146	0.00%	$	835,263	0.00%	$	824,848	0.00%
Interest bearing demand		416,389	0.11%		415,498	0.10%		422,500	0.09%		415,948	0.09%		413,446	0.09%
Money market accounts		998,403	0.39%		1,029,480	0.38%		1,084,669	0.38%		1,057,908	0.36%		1,001,658	0.33%
Savings accounts		442,985	0.38%		426,836	0.32%		389,090	0.26%		370,845	0.27%		383,981	0.28%
Time deposits		1,131,326	0.90%		1,147,037	0.87%		1,179,821	0.83%		1,169,325	0.80%		1,174,269	0.78%
Total average deposits	$	3,863,853	0.42%	$	3,877,150	0.40%	$	3,901,226	0.39%	$	3,849,289	0.38%	$	3,798,202	0.36%

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Provision for Loan Losses

The provision for loan losses represents the amount of expense that is necessary to bring the ALL to a level that we deem appropriate to absorb probable losses inherent in the loan portfolio as of the balance sheet date. The ALL is in addition to the remaining purchase accounting marks of $2.0 million on acquired non 310-30 loans that were established at the time of acquisition. The determination of the ALL, and the resultant provision for loan losses, is subjective and involves significant estimates and assumptions. Below is a summary of the provision for loan losses recorded in the consolidated statements of operations for the periods indicated:

	For the three months ended September 30,				For the nine months ended September 30,
	2017		2016		2017		2016
(Recoupment) provision for impairment loans accounted for under ASC 310-30	$	(142)	$	18	$	(225)	$	(787)
Provision for loan losses		4,022		5,275		9,925		23,156
Total provision for loan losses	$	3,880	$	5,293	$	9,700	$	22,369

Provision for loan losses was $3.9 million and $9.7 million during the three and nine months ended September 30, 2017, respectively, compared to $5.3 million and $22.4 million during the three and nine months ended September 30, 2016, respectively. The provision for loan losses on non 310-30 loans for the three months ended September 30, 2017 included $2.9 million related to one non-accrual energy loan as we are resolving the remaining problem energy loans. Net charge-offs within the non 310-30 portfolio for the three months ended September 30, 2017 totaled $8.8 million primarily due to two previously identified energy loans totaling $6.1 million and one previously identified commercial and industrial loan totaling $2.5 million. Excluding the energy loans, annualized non 310-30 net charge-offs were 0.37% for the three months ended September 30, 2017. The non 310-30 allowance for loan losses was 1.00% of total non 310-30 loans compared to 1.04% at September 30, 2016 and decreased due to lower specific reserves.

The year-over-year provision for loan losses on non 310-30 loans decreased $13.3 million driven entirely by a reduction in the provision for energy loans, compared to the nine months ended September 30, 2016. Annualized net charge-offs on non 310-30 loans totaled 0.41%, or 0.13% excluding the energy portfolio, for the nine months of 2017 compared to 1.16%, or 0.13% excluding the energy portfolio, for the nine months of 2016.

For the three and nine months ended September 30, 2017, we recorded a recoupment of $142 thousand and $225 thousand, respectively, of provision for loan losses accounted for under ASC 310-30 in connection with our re-measurements of expected cash flows. For the three and nine months ended September 30, 2016, we recorded provision of $18 thousand and recorded recoupments of $787 thousand, respectively, for loan losses accounted for under ASC 310-30 in connection with our re-measurements of expected cash flow.

Non-Interest Income

The table below details the components of non-interest income for the periods presented:

	For the three months ended				For the nine months ended
	September 30,				September 30,				Three months			Nine months
									Increase (decrease)			Increase (decrease)
	2017		2016		2017		2016		Amount		% Change	Amount		% Change
Service charges	$	3,585	$	3,662	$	10,458	$	10,387	$	(77)	(2.1)%	$	71	0.7 %
Bank card fees		3,076		2,828		9,014		8,530		248	8.8 %		484	5.7 %
Gain on sale of mortgages, net		668		819		1,716		2,251		(151)	(18.4)%		(535)	(23.8)%
Bank-owned life insurance income		475		497		1,417		1,378		(22)	(4.4)%		39	2.8 %
Other non-interest income		1,611		2,135		7,149		5,299		(524)	(24.5)%		1,850	34.9 %
OREO related income		136		1,667		449		2,190		(1,531)	(91.8)%		(1,741)	(79.5)%
Total non-interest income	$	9,551	$	11,608	$	30,203	$	30,035	$	(2,057)	(17.7)%	$	168	0.6 %

Non-interest income for the three and nine months ended September 30, 2017 was $9.6 million and $30.2 million, respectively, compared to $11.6 million and $30.0 million during the three and nine months ended September 30, 2016, respectively. Service charges represent various fees charged to clients for banking services, including fees such as non-sufficient funds (“NSF”) charges and service charges on deposit accounts. Service charges and bank card fees increased a combined $0.2 million and $0.6 million during the three and nine months ended September 30, 2017, respectively, compared to the prior periods, due to higher treasury management fees and higher interchange activity.

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Gain on sale of mortgages decreased during the three and nine months ended September 30, 2017 due to lower volumes.

Other non-interest income decreased during the three months ended September 30, 2017 due to a gain on previously charged-off acquired loans during the third quarter of 2016. Other non-interest income increased during the nine months ended September 30, 2017 due to a $2.9 million gain from banking center divestitures in the second quarter of 2017 and a $1.0 million increase in swap related income. These increases were partially offset by a $1.8 million gain on sale of a building in the prior year.

OREO related income includes rental income and insurance proceeds received on OREO properties and write-ups to the fair value of collateral that exceed the loan balance at the time of foreclosure. During the three and nine months ended September 30, 2017, this income decreased $1.5 million and $1.7 million, respectively, compared to prior periods, due to income from one large OREO property in the prior year.

Non-Interest Expense

The table below details the components of non-interest expense for the periods presented:

	For the three months ended				For the nine months ended
	September 30,				September 30,				Three months			Nine months
									Increase (decrease)			Increase (decrease)
	2017		2016		2017		2016		Amount		% Change	Amount		% Change
Salaries and benefits	$	19,363	$	20,091	$	59,662	$	60,315	$	(728)	(3.6)%	$	(653)	(1.1)%
Occupancy and equipment		5,208		5,666		15,887		17,440		(458)	(8.1)%		(1,553)	(8.9)%
Telecommunications and data processing		1,702		1,487		4,841		4,599		215	14.5 %		242	5.3 %
Marketing and business development		683		687		1,878		1,802		(4)	(0.6)%		76	4.2 %
FDIC deposit insurance		715		734		2,106		2,719		(19)	(2.6)%		(613)	(22.5)%
Bank card expenses		971		1,133		2,751		3,009		(162)	(14.3)%		(258)	(8.6)%
Professional fees		754		909		2,441		2,343		(155)	(17.1)%		98	4.2 %
Other non-interest expense		2,700		2,198		7,839		6,265		502	22.8 %		1,574	25.1 %
Problem asset workout		1,636		1,172		3,389		3,104		464	39.6 %		285	9.2 %
Gain on OREO sales, net		(497)		(2,077)		(2,254)		(4,120)		1,580	76.1 %		1,866	45.3 %
Intangible asset amortization		1,370		1,370		4,110		4,110		—	0.0 %		—	0.0 %
Total non-interest expense	$	34,605	$	33,370	$	102,650	$	101,586	$	1,235	3.7 %	$	1,064	1.0 %

Non-interest expense totaled $34.6 million and $102.7 million for the three and nine months ended September 30, 2017, compared to $33.4 million and $101.6 million for the three and nine months ended September 30, 2016. Salaries and benefits decreased $0.7 million during the three and nine months ended September 30, 2017, compared to prior periods. Occupancy and equipment decreased during the three and nine months ended September 30, 2017, compared to prior periods, due to lower depreciation expense.

FDIC deposit insurance expense decreased during the three and nine months ended September 30, 2017, compared to prior periods, due to a lower assessment rate.

Other non-interest expense increased during the three and nine months ended September 30, 2017, compared to the same periods prior year, due to the recovery of unfunded commitment reserves in the prior periods and increases in various other expense categories during the three and nine months ended September 30, 2017.

Problem asset workout expense increased $0.5 million and $0.3 million during the three and nine months ended September 30, 2017, respectively. Gain on sale of OREO decreased $1.6 million and $1.9 million during the three and nine months ended September 30, 2017, respectively, compared to prior periods, from the sale of several larger assets in the prior year.

Total non-interest expense included $0.4 million and $0.7 million of acquisition-related costs, during the three and nine months ended September 30, 2017.

Income taxes

Income tax expense totaled $1.7 million and $2.7 million for the three and nine months ended September 30, 2017, respectively, compared to an expense of $1.7 million and $2.9 million for the three and nine months ended September 30, 2016, respectively. The tax expense recorded for the three and nine months ended September 30, 2017 was lowered by a $0.1 million and $3.4 million tax benefit from stock compensation activity, respectively. Without the discrete items related to stock compensation activity, the tax rates

63

for the three and nine months ended September 30, 2017 were 20.0% and 22.3%, respectively. The quarterly effective tax rate differs from the federal statutory rate primarily due to tax benefits from stock compensation activity, interest income from tax-exempt lending, bank-owned life insurance income, and the relationship of these items to pre-tax income. The Company forecasts the full year estimated effective tax rate in accordance with ASC 740; as a result, the relationship between pre-tax income and tax-exempt income within each reporting period can create fluctuations in the effective tax rate from period-to-period.

Certain of the Company’s outstanding stock-based compensation awards have market-based vesting/exercisability criteria. For restricted stock with market-based vesting, the target share price of the Company's stock that is required for vesting is $34.00 per share. The strike prices for options range from $18.09 - $34.04, with a large portion of the awards having strike prices of $20.00. Depending on the movement in our stock price, these stock-based compensation awards may create either an excess tax benefit or tax deficiency depending on the relationship between the fair value at the time of vesting or exercise and the estimated fair value recorded at the time of grant. The Company adopted ASU 2016-09 effective January 1, 2016, which results in recording the excess tax benefit or tax deficiency as a tax benefit or expense in the consolidated statements of operations. As of September 30, 2017, the Company had $5.4 million of deferred tax assets related to stock-based compensation, $3.7 million of which is associated with executive officers still employed by the Company.

Additional information regarding income taxes can be found in note 21 of our audited consolidated financial statements in our 2016 Annual Report on Form 10-K and note 13 of this document.

Liquidity and Capital Resources

Liquidity is monitored and managed to ensure that sufficient funds are available to operate our business and pay our obligations to depositors and other creditors, while providing ample available funds for opportunistic and strategic investments. On-balance sheet liquidity is represented by our cash and cash equivalents, and unencumbered investment securities, and is detailed in the table below as of September 30, 2017 and December 31, 2016:

	September 30, 2017		December 31, 2016
Cash and due from banks	$	221,160	$	152,736
Interest bearing bank deposits		20,000		—
Unencumbered investment securities, at fair value		644,901		843,061
Total	$	886,061	$	995,797

Total on-balance sheet liquidity decreased $109.7 million at September 30, 2017 compared to December 31, 2016. The decrease was driven by a reduction of $198.2 million in unencumbered available-for-sale and held-to-maturity securities balances partially offset by a combined increase of $88.5 million in cash and due from banks and interest bearing bank deposits.

Our primary sources of funds are deposits, securities sold under agreements to repurchase, prepayments and maturities of loans and investment securities, the sale of investment securities, and funds provided from operations. We are also a party to a master repurchase agreement with a large financial institution and we anticipate that, through this agreement, we would have access to a significant amount of liquidity. We anticipate having access to other third party funding sources, including the ability to raise funds through the issuance of shares of our common stock or other equity or equity-related securities, incurrence of debt, and federal funds purchased, that may also be a source of liquidity. We anticipate that these sources of liquidity will provide adequate funding and liquidity for at least a 12 month period.

Our primary uses of funds are loan originations, investment security purchases, withdrawals of deposits, settlement of repurchase agreements, capital expenditures, operating expenses, and share repurchases. For additional information regarding our operating, investing, and financing cash flows, see our consolidated statements of cash flows in the accompanying unaudited consolidated financial statements.

Exclusive from the investing activities related to acquisitions, our primary investing activities are originations and pay-offs and pay downs of loans and purchases and sales of investment securities. At September 30, 2017, pledgeable investment securities represented our largest source of liquidity. Our available-for-sale investment securities are carried at fair value and our held-to-maturity securities are carried at amortized cost. Our collective investment securities portfolio totaled $1.1 billion at September 30, 2017, inclusive of pre-tax net unrealized losses of $8.1 million on the available-for-sale securities portfolio. Additionally, our held-to-maturity securities portfolio had $238 thousand of pre-tax net unrealized gains at September 30, 2017. The gross unrealized gains and losses are detailed in note 3 of our consolidated financial statements. As of September 30, 2017, our investment securities portfolio consisted primarily of

64

mortgage-backed securities, all of which were issued or guaranteed by U.S. Government agencies or sponsored enterprises. The anticipated repayments and marketability of these securities offer substantial resources and flexibility to meet new loan demand, reinvest in the investment securities portfolio, or provide optionality for reductions in our deposit funding base.

At present, financing activities primarily consist of changes in deposits and repurchase agreements, and advances from FHLB, in addition to the payment of dividends and the repurchase of our common stock. Maturing time deposits represent a potential use of funds. As of September 30, 2017, $690.7 million of time deposits were scheduled to mature within 12 months. Based on the current interest rate environment, market conditions, and our consumer banking strategy focusing on both lower cost transaction accounts and term deposits, our strategy is to replace a significant portion of those maturing time deposits with transaction deposits and market-rate time deposits.

Through our relationship with the FHLB, we have pledged qualifying loans and investment securities allowing us to obtain additional liquidity through FHLB advances and lines of credit. FHLB advances and lines of credit available totaled $916.5 million of which $129.1 million was used at September 30, 2017. We can obtain additional liquidity through FHLB advances if required. The bank also has access to federal funds lines of credit with corresponding banks.

The new Basel III rules, effective January 1, 2015, changed the components of regulatory capital and changed the way in which risk ratings are assigned to various categories of bank assets. Also, a new Tier I common risk-based ratio was defined. Under the Basel III requirements, at September 30, 2017, the Company met all capital adequacy requirements and had regulatory capital ratios in excess of the levels established for well-capitalized institutions. For more information on regulatory capital, see note 8 in our consolidated financial statements.

Our shareholders' equity is impacted by the retention of earnings, changes in unrealized gains and losses on securities, net of tax, stock-based compensation activity, share repurchases and the payment of dividends.

The Board of Directors has authorized multiple programs to repurchase shares of the Company’s common stock from time to time either in open market or in privately negotiated transactions in accordance with applicable regulations of the SEC. We believe that our repurchases could serve to offset any future share issuances for future acquisitions. During the nine months ended September 30, 2017, we did not repurchase any shares of our common stock as part of a publicly announced program.

On August 5, 2016, the Company announced that its Board of Directors authorized a program to repurchase up to an additional $50.0 million of the Company’s common stock. The remaining authorization under this program as of September 30, 2017 was $12.6 million.

On November 1, 2017, our Board of Directors declared a quarterly dividend of $0.09 per common share, payable on December 15, 2017 to shareholders of record at the close of business on November 24, 2017.

Asset/Liability Management and Interest Rate Risk

Management and the Board of Directors are responsible for managing interest rate risk and employing risk management policies that monitor and limit this exposure. Interest rate risk is measured using net interest income simulations and market value of portfolio equity analyses. These analyses use various assumptions, including the nature and timing of interest rate changes, yield curve shape, prepayments on loans and securities, deposit decay rates, pricing decisions on loans and deposits, and reinvestment/replacement of asset and liability cash flows.

The principal objective of the Company's asset and liability management function is to evaluate the interest rate risk within the balance sheet and pursue a controlled assumption of interest rate risk while maximizing earnings and preserving adequate levels of liquidity and capital. The asset and liability management function is under the guidance of the Asset Liability Committee from direction of the Board of Directors. The Asset Liability Committee meets monthly to review, among other things, the sensitivity of the Company's assets and liabilities to interest rate changes, local and national market conditions and rates. The Asset Liability Committee also reviews the liquidity, capital, deposit mix, loan mix and investment positions of the Company.

Instantaneous parallel rate shift scenarios are modeled and utilized to evaluate risk and establish exposure limits for acceptable changes in net interest margin. These scenarios, known as rate shocks, simulate an instantaneous change in interest rates and use various assumptions, including, but not limited to, prepayments on loans and securities, deposit decay rates, pricing decisions on loans and deposits, reinvestment and replacement of asset and liability cash flows.

65

We also analyze the economic value of equity as a secondary measure of interest rate risk. This is a complementary measure to net interest income where the calculated value is the result of the market value of assets less the market value of liabilities. The economic value of equity is a longer term view of interest rate risk because it measures the present value of the future cash flows. The impact of changes in interest rates on this calculation is analyzed for the risk to our future earnings and is used in conjunction with the analyses on net interest income.

Our interest rate risk model indicated that the Company was asset sensitive in terms of interest rate sensitivity at September 30, 2017. During the nine months ended September 30, 2017, we increased our asset sensitivity as a result of the balance sheet mix towards more variable rate loans, even after adjusting our models for the excess capital deployment. The table below illustrates the impact of an immediate and sustained 200 and 100 basis point increase and a 50 basis point decrease in interest rates on net interest income based on the interest rate risk model at September 30, 2017 and December 31, 2016:  

Hypothetical
shift in interest	% change in projected net interest income
rates (in bps)	September 30, 2017	December 31, 2016
200	6.61%	5.84%
100	4.53%	3.66%
(50)	(3.35)%	(2.49)%

Many assumptions are used to calculate the impact of interest rate fluctuations. Actual results may be significantly different than our projections due to several factors, including the timing and frequency of rate changes, market conditions and the shape of the yield curve. The computations of interest rate risk shown above do not include actions that management may undertake to manage the risks in response to anticipated changes in interest rates and actual results may also differ due to any actions taken in response to the changing rates.

As part of the asset/liability management strategy to manage primary market risk exposures expected to be in effect in future reporting periods, management has emphasized the origination of shorter duration loans as well as variable rate loans to limit the negative exposure to a rate increase. The strategy with respect to liabilities has been to emphasize transaction accounts, particularly non-interest or low interest bearing non-maturing deposit accounts which are less sensitive to changes in interest rates. In response to this strategy, non-maturing deposit accounts have grown $116.6 million during the nine months September 30, 2017, and totaled 71.3% of total deposits at September 30, 2017 compared to 69.7% at December 31, 2016. We currently have no brokered time deposits and intend to continue to focus on our strategy of increasing non-interest or low-cost interest bearing non-maturing deposit accounts.

Off-Balance Sheet Activities

In the normal course of business, we are a party to various contractual obligations, commitments and other off-balance sheet activities that contain credit, market, and operational risk that are not required to be reflected in our consolidated financial statements. The most significant of these are the loan commitments that we enter into to meet the financing needs of clients, including commitments to extend credit, commercial and consumer lines of credit and standby letters of credit. As of September 30, 2017 and December 31, 2016, we had loan commitments totaling $652.7 million and $602.2 million, respectively, and standby letters of credit that totaled $9.5 million and $13.5 million, respectively. Unused commitments do not necessarily represent future credit exposure or cash requirements, as commitments often expire without being drawn upon. We do not anticipate any material losses arising from commitments or contingent liabilities and we do not believe that there are any material commitments to extend credit that represent risks of an unusual nature. 

Item 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

The information called for by this item is provided under the caption Asset/Liability Management and Interest Rate Risk in Part I, Item 2-Management's Discussion and Analysis of Financial Condition and Results of Operations and is incorporated herein by reference.

Item 4. CONTROLS AND PROCEDURES

Our management, with the participation of our principal executive officer and principal financial officer, conducted an evaluation of the effectiveness of our disclosure controls and procedures, as such term is defined in Rule 13a-15(e) under the Securities Exchange

66

Act of 1934, as of September 30, 2017. Based on this evaluation, our principal executive officer and our principal financial officer concluded that our disclosure controls and procedures were effective as of September 30, 2017.

During the most recently completed fiscal quarter, there were no changes made in the Company's internal controls over financial reporting (as defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act) that have materially affected, or are reasonably likely to materially affect, the Company's internal control over financial reporting.

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PART II: OTHER INFORMATION

Item 1. LEGAL PROCEEDINGS

From time to time, we are a party to various litigation matters incidental to the conduct of our business. We are not presently party to any legal proceedings the resolution of which we believe would have a material adverse effect on our business, prospects, financial condition, liquidity, results of operation, cash flows or capital levels.

Item 1A. RISK FACTORS

There have been no material changes to the risk factors disclosed in Item 1A. Risk Factors in our Annual Report on Form 10-K for the year ended December 31, 2016.

Item 2. UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS

					Maximum number
				Total number of	(or approximate dollar
				shares (or units)	value) of shares (or
	Total number	Average		purchased as part of	units) that may yet be
	of shares (or	price paid per		publicly announced	purchased under the
Period	units) purchased	share (or unit)		plans or programs	plans or programs (2)
July 1 - July 31, 2017(1)	2,883	$	33.80	—	$	12,562,825
August 1 - August 31,2017(1)	4,092		33.28	—		12,562,825
September 1 - September 30, 2017(1)	88		31.44	—		12,562,825
Total	7,063	$	33.47	—	$	12,562,825

(1)	These shares represent shares purchased other than through publicly announced plans and were purchased pursuant to the Company’s stock incentive plans. Pursuant to the plans, shares were purchased from plan participants at the then current market value in satisfaction of stock option exercise prices, settlements of restricted stock and tax withholdings.
(2)	On August 5, 2016, the Company’s Board of Directors authorized the repurchase of up to an additional $50.0 million of common stock. Under this authorization, $12,562,825 remained available for purchase at September 30, 2017.

Item 5. OTHER INFORMATION

None.

Item 6. EXHIBITS  

3.1	Second Amended and Restated Certificate of Incorporation (incorporated herein by reference to Exhibit 3.1 to our Form S-1 Registration Statement (Registration No. 333-177971), filed August 22, 2012)
3.2	Second Amended and Restated By-Laws (incorporated herein by reference to Exhibit 3.2 to our Quarterly Report on Form 10-Q for the quarterly period ended September 30, 2014, filed November 7, 2014)
31.1	Certification of CEO pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
31.2	Certification of CFO pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
32	Certifications of CEO and CFO pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
101	Interactive data files pursuant to Rule 405 of Regulation S-T: (i) the Consolidated Statements of Financial Condition, (ii) the Consolidated Statements of Operations, (iii) the Consolidated Statements of Comprehensive Income, (iv) the Consolidated Statements of Changes in Shareholders’ Equity, (v) the Consolidated Statements of Cash Flows and (vi) the Notes to Consolidated Financial Statements, tagged as blocks of text and in detail

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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.

National Bank Holdings Corporation

By	/s/ Brian F. Lilly
	Brian F. Lilly
	Chief Financial Officer; Chief of M&A and Strategy
	(principal financial officer)

Date: November 3, 2017

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EX-31.1

Exhibit 31.1

Certifications of CEO pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

I, G. Timothy Laney, Chief Executive Officer, certify that:

1. I have reviewed this quarterly report on Form 10-Q of National Bank Holdings Corporation;

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 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.

Date:	November 3, 2017	/s/ G. Timothy Laney
		G. Timothy Laney
		Chairman, President and Chief Executive Officer

EX-31.2

Exhibit 31.2

Certifications of CFO pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

I, Brian F. Lilly, Chief Financial Officer, certify that:

1. I have reviewed this quarterly report on Form 10-Q of National Bank Holdings Corporation;

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 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.

Date:	November 3, 2017	/s/ Brian F. Lilly
		Brian F. Lilly
		Chief Financial Officer; Chief of M&A and Strategy

EX-32

Exhibit 32

Certifications of CEO and CFO 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 National Bank Holdings Corporation (the “Company”) on Form 10-Q  for the period ended September 30, 2017, as filed with the Securities and Exchange Commission (the “Report”), each of the undersigned officers certifies pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to the best of his knowledge: (1) this Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934 and (2) the information contained in the Report fairly presents, in all material respects, the financial condition and results of operation of the Company.

Date:	November 3, 2017	/s/ G. Timothy Laney
		G. Timothy Laney
		Chairman, President and Chief Executive Officer
Date:	November 3, 2017	/s/ Brian F. Lilly
		Brian F. Lilly
		Chief Financial Officer; Chief of M&A and Strategy

XML

Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2017	Nov. 01, 2017
Document Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 30, 2017
Document Fiscal Year Focus	2017
Document Fiscal Period Focus	Q3
Trading Symbol	NBHC
Entity Registrant Name	National Bank Holdings Corp
Entity Central Index Key	0001475841
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		26,848,151
Entity Current Reporting Status	Yes

XML

Consolidated Statements of Financial Condition (Unaudited) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
ASSETS
Cash and due from banks	$ 221,160	$ 152,736
Interest bearing bank deposits	20,000
Cash and cash equivalents	241,160	152,736
Investment securities available-for-sale (at fair value)	812,051	884,232
Investment securities held-to-maturity (at amortized cost)	275,370	332,505
Non-marketable securities	15,537	14,949
Loans	3,120,543	2,860,921
Allowance for loan losses	(30,047)	(29,174)
Loans, net	3,090,496	2,831,747
Loans held for sale	12,212	24,187
Other real estate owned	12,330	15,662
Premises and equipment, net	91,654	95,671
Goodwill	59,630	59,630
Intangible assets, net	2,840	6,949
Other assets	155,692	154,778
Total assets	4,768,972	4,573,046
Liabilities:
Non-interest bearing demand deposits	910,675	846,744
Interest bearing demand deposits	431,786	427,538
Savings and money market	1,470,714	1,422,321
Time deposits	1,133,167	1,172,046
Total deposits	3,946,342	3,868,649
Securities sold under agreements to repurchase	92,814	92,011
Federal Home Loan Bank advances	129,115	38,665
Other liabilities	50,457	37,532
Total liabilities	4,218,728	4,036,857
Shareholders' equity:
Common stock	515	514
Additional paid in capital	972,027	984,087
Retained earnings	73,358	55,454
Treasury stock at cost	(494,321)	(502,104)
Accumulated other comprehensive income (loss), net of tax	(1,335)	(1,762)
Total shareholders' equity	550,244	536,189
Total liabilities and shareholders' equity	$ 4,768,972	$ 4,573,046

XML

Consolidated Statements of Financial Condition (Unaudited) (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Statement of Financial Position [Abstract]
Investment securities held-to-maturity, fair value	$ 275,608	$ 332,573
Common Stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common Stock, shares authorized	400,000,000	400,000,000
Common Stock, shares issued	51,585,248	51,813,011
Common Stock, shares outstanding	26,802,964	26,386,583
Treasury stock, shares	24,535,807	24,927,157

XML

Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Interest and dividend income:
Interest and fees on loans	$ 36,064	$ 33,450	$ 102,238	$ 96,477
Interest and dividends on investment securities	6,005	7,094	19,108	23,088
Dividends on non-marketable securities	234	160	619	581
Interest on interest-bearing bank deposits	276	60	687	644
Total interest and dividend income	42,579	40,764	122,652	120,790
Interest expense:
Interest on deposits	4,068	3,479	11,759	10,305
Interest on borrowings	613	221	1,380	630
Total interest expense	4,681	3,700	13,139	10,935
Net interest income before provision for loan losses	37,898	37,064	109,513	109,855
Provision for loan losses	3,880	5,293	9,700	22,369
Net interest income after provision for loan losses	34,018	31,771	99,813	87,486
Non-interest income:
Service charges	3,585	3,662	10,458	10,387
Bank card fees	3,076	2,828	9,014	8,530
Gain on sale of mortgages, net	668	819	1,716	2,251
Bank-owned life insurance income	475	497	1,417	1,378
Other non-interest income	1,611	2,135	7,149	5,299
OREO related income	136	1,667	449	2,190
Total non-interest income	9,551	11,608	30,203	30,035
Non-interest expense:
Salaries and benefits	19,363	20,091	59,662	60,315
Occupancy and equipment	5,208	5,666	15,887	17,440
Telecommunications and data processing	1,702	1,487	4,841	4,599
Marketing and business development	683	687	1,878	1,802
FDIC deposit insurance	715	734	2,106	2,719
Bank card expenses	971	1,133	2,751	3,009
Professional fees	754	909	2,441	2,343
Other non-interest expense	2,700	2,198	7,839	6,265
Problem asset workout	1,636	1,172	3,389	3,104
Gain on OREO sales, net	(497)	(2,077)	(2,254)	(4,120)
Intangible asset amortization	1,370	1,370	4,110	4,110
Total non-interest expense	34,605	33,370	102,650	101,586
Income before income taxes	8,964	10,009	27,366	15,935
Income tax expense	1,733	1,695	2,668	2,866
Net income	$ 7,231	$ 8,314	$ 24,698	$ 13,069
Income per share-basic (in dollars per share)	$ 0.27	$ 0.30	$ 0.92	$ 0.45
Income per share-diluted (in dollars per share)	$ 0.26	$ 0.30	$ 0.89	$ 0.45
Weighted average number of common shares outstanding:
Basic (Shares)	26,947,821	27,654,827	26,902,128	28,991,094
Diluted (Shares)	27,628,734	27,898,756	27,636,675	29,111,322

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Consolidated Statements of Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Statement of Comprehensive Income [Abstract]
Net income	$ 7,231	$ 8,314	$ 24,698	$ 13,069
Securities available-for-sale:
Net unrealized gains (losses) arising during the period, net of tax	197	(2,242)	1,473	9,956
Less: amortization of net unrealized holding gains to income, net of tax	(336)	(489)	(1,046)	(1,504)
Other comprehensive income (loss)	(139)	(2,731)	427	8,452
Comprehensive income (loss)	$ 7,092	$ 5,583	$ 25,125	$ 21,521

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Consolidated Statements of Comprehensive Income (Loss) (Unaudited) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Statement of Comprehensive Income [Abstract]
Tax (expense) benefit on net unrealized gains arising during the period	$ (121)	$ 1,376	$ (913)	$ (6,111)
Tax (expense) benefit of amortization of net unrealized holding gains to income	$ 207	$ 300	$ 642	$ 923

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Consolidated Statements of Changes in Stockholders' Equity - USD ($) $ in Thousands	Common stock [Member]	Additional paid-in capital [Member]	Retained earnings [Member]	Treasury stock [Member]	Accumulated other comprehensive income (loss), net [Member]	Total
Balance in the beginning at Dec. 31, 2015	$ 513	$ 997,926	$ 38,670	$ (419,660)	$ 95	$ 617,544
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income			13,069			13,069
Stock-based compensation		2,692				2,692
Issuance under purchase and equity compensation plans, including (gain) loss on reissuance of treasury stock	1	(2,953)		2,669		(283)
Repurchase of shares				(87,310)		(87,310)
Cash dividends declared			(4,392)			(4,392)
Other comprehensive income (loss)					8,452	8,452
Balance in the ending at Sep. 30, 2016	514	997,665	47,347	(504,301)	8,547	549,772
Balance in the beginning at Dec. 31, 2016	514	984,087	55,454	(502,104)	(1,762)	536,189
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income			24,698			24,698
Stock-based compensation		2,771				2,771
Issuance under purchase and equity compensation plans, including (gain) loss on reissuance of treasury stock	1	(12,898)		5,850		(7,047)
Cash dividends declared			(6,794)			(6,794)
Warrant exercise		(1,933)		1,933
Other comprehensive income (loss)					427	427
Balance in the ending at Sep. 30, 2017	$ 515	$ 972,027	$ 73,358	$ (494,321)	$ (1,335)	$ 550,244

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Consolidated Statements of Changes in Stockholders' Equity (Parenthetical) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Statement of Stockholders' Equity [Abstract]
Gain (loss) on reissuance of treasury stock	$ 5,080	$ (5)
Shares repurchased (shares)		4,231,874
Cash dividends declared per share	$ 0.25	$ 0.15

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Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Cash flows from operating activities:
Net income	$ 24,698	$ 13,069
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Provision for loan losses	9,700	22,369
Depreciation and amortization	9,862	10,864
Current income tax receivable	570	3,310
Deferred income taxes	2,116	6,846
Net excess tax (benefit) deficit on stock-based compensation	(3,442)	86
Discount accretion, net of premium amortization	1,953	2,352
Loan Accretion	(18,936)	(27,939)
Gain on sale of mortgage loans, net	(1,716)	(2,251)
Origination of loans held for sale, net of repayments	(66,333)	(79,747)
Proceeds from sales of loans held for sale	75,619	71,756
Bank-owned life insurance income	(1,417)	(1,378)
Gain on the sale of other real estate owned, net	(2,254)	(4,120)
Impairment on other real estate owned	766	262
Loss (gain) on sale of fixed assets	33	(1,840)
Gain on banking center divestitures	(2,886)
Stock-based compensation	2,771	2,692
(Increase) decrease in other assets	(2,299)	(6,892)
(Decrease) increase in other liabilities	9,917	17,747
Net cash provided by (used in) operating activities	38,722	27,186
Cash flows from investing activities:
Purchase of FHLB stock	(7,377)	(1,859)
Proceeds from redemption of FHLB stock	6,789	7,051
Proceeds from redemption of FRB stock		4,964
Proceeds from maturities of investment securities held-to-maturity	55,083	69,218
Proceeds from maturities of investment securities available-for-sale	171,326	207,413
Purchase of investment securities available-for-sale	(98,503)	(4,872)
Net increase in loans	(273,127)	(239,203)
Sales (purchases) of premises and equipment, net	(1,769)	1,328
Purchase of bank-owned life insurance		(10,344)
Proceeds from sales of loans	33,813	9,231
Proceeds from sales of other real estate owned	5,580	8,227
Net cash provided by (used in) investing activities	(108,185)	51,154
Cash flows from financing activities:
Net increase (decrease) in deposits	80,579	(15,670)
Increase (decrease) in repurchase agreements	803	(23,216)
Advances from FHLB	263,129	71,359
FHLB payoffs	(172,679)	(60,000)
Issuance of stock under purchase and equity compensation plans	(7,125)	(322)
Proceeds from exercise of stock options	78
Payment of dividends	(6,898)	(4,296)
Repurchase of shares		(87,310)
Net cash proivded by (used in) financing activities	157,887	(119,455)
Increase (decrease) in cash and cash equivalents	88,424	(41,115)
Cash and cash equivalents at beginning of the year	152,736	166,092
Cash and cash equivalents at end of year	241,160	124,977
Supplemental disclosure of cash flow information during the period:
Cash paid for interest	11,437	9,336
Net tax (refunds) payments	33	(2,152)
Supplemental schedule of non-cash investing activities:
Loans transferred to other real estate owned at fair value	760	4,755
Loans purchased but not settled	6,554	$ 11,537
Transfer of Loans Held-for-sale to Portfolio Loans	$ 4,406

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Basis of Presentation

9 Months Ended

Sep. 30, 2017

Accounting Policies [Abstract]

Basis of Presentation

Note 1 Basis of Presentation

National Bank Holdings Corporation ("NBHC" or the "Company") is a bank holding company that was incorporated in the State of Delaware in June 2009 with the intent to acquire and operate financial services franchises and other complementary businesses in targeted markets. The Company is headquartered immediately south of Denver, in Greenwood Village, Colorado, and its primary operations are conducted through its wholly owned subsidiary, NBH Bank, referred to as the Bank, or NBH Bank, a Colorado state-chartered bank and a member of the Federal Reserve System. The Company provides a variety of banking products to both commercial and consumer clients through a network of 85 banking centers located in Colorado, the greater Kansas City area and Texas, and through online and mobile banking products.

The accompanying interim unaudited consolidated financial statements serve to update the National Bank Holdings Corporation Annual Report on Form 10-K for the year ended December 31, 2016 and include the accounts of the Company and its wholly owned subsidiary, NBH Bank. The accompanying unaudited consolidated financial statements have been prepared in accordance with U.S. generally accepted accounting principles (“GAAP”) and where applicable, with general practices in the banking industry or guidelines prescribed by bank regulatory agencies. However, they may not include all information and notes necessary to constitute a complete set of financial statements under GAAP applicable to annual periods and accordingly should be read in conjunction with the financial information contained in the Company's most recent Form 10-K. The unaudited consolidated financial statements reflect all adjustments which are, in the opinion of management, necessary for a fair statement of the results presented. All such adjustments are of a normal recurring nature. All significant intercompany balances and transactions have been eliminated in consolidation. Certain reclassifications of prior years' amounts are made whenever necessary to conform to current period presentation. The results of operations for the interim period is not necessarily indicative of the results that may be expected for the full year or any other interim period. All amounts are in thousands, except share data, or as otherwise noted.

GAAP requires management to make estimates that affect the reported amounts of assets, liabilities, revenues and expenses, and disclosures of contingent assets and liabilities. By their nature, estimates are based on judgment and available information. Management has made significant estimates in certain areas, such as the amount and timing of expected cash flows from assets, the valuation of other real estate owned (“OREO”), the fair value adjustments on assets acquired and liabilities assumed, the valuation of core deposit intangible assets, the valuation of investment securities for other-than-temporary impairment (“OTTI”), the valuation of stock-based compensation, the fair values of financial instruments, the allowance for loan losses (“ALL”), and contingent liabilities. Because of the inherent uncertainties associated with any estimation process and future changes in market and economic conditions, it is possible that actual results could differ significantly from those estimates.

The Company's significant accounting policies followed in the preparation of the unaudited consolidated financial statements are disclosed in note 2 of the audited financial statements and notes for the year ended December 31, 2016 and are contained in the Company's Annual Report on Form 10-K. There have not been any significant changes to the application of significant accounting policies since December 31, 2016

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Recent Accounting Pronouncements

9 Months Ended

Sep. 30, 2017

Text Block [Abstract]

Recent Accounting Pronouncements

Note 2 Recent Accounting Pronouncements

Revenue from Contracts with Customers—In May 2014, the FASB issued ASU 2014-09, "Revenue from Contracts with Customers."  This update supersedes revenue recognition requirements in ASC Topic 605, Revenue Recognition, including most industry-specific revenue recognition guidance in the FASB Accounting Standards Codification. The new guidance stipulates that an entity should 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 those goods or services. The guidance provides specific steps that entities should apply in order to achieve this principle. The amendments are effective for interim and annual periods beginning after December 15, 2017, with early application permitted for interim and annual periods beginning after December 15, 2016. ASU No. 2014-09 allows for either full retrospective or modified retrospective adoption.

The new guidance does not apply to revenue associated with financial assets and liabilities including loans, leases, securities, and derivatives that are accounted for under other GAAP. Accordingly, the majority of the Company’s revenues will not be affected. The Company has completed its review of revenue streams and contracts with customers and has determined deposit service charges and bank card fees are within the scope of the ASU, but has not identified changes to the timing or amount of revenue recognition. Accounting policies and procedures are not expected to change materially since the principals of revenue recognition from the ASU are largely consistent with existing guidance and current practices applied by the Company. The Company continues to assess the expanded revenue disclosure requirements under the new standard. The Company will adopt ASU No. 2014-09 on January 1, 2018 utilizing the modified retrospective approach.

Leases—In February 2016, the FASB issued ASU 2016-02, Leases. The guidance in ASU 2016-02 supersedes the lease recognition requirements in ASC Topic 840, Leases. The new standard establishes a right-of-use (ROU) model that requires a lessee to record a ROU asset and lease liability on the balance sheet for all leases with terms longer than 12 months. Leases will be classified as either finance or operating, with classification affecting the pattern of expense recognition in the income statements. The new standard is effective for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years, with early adoption permitted. A modified retrospective transition approach is required for lessees for capital and operating leases existing at, or entered into after, the beginning of the earliest comparative period presented in the financial statements. Early adoption of the amendments in the update is permitted. The Company will adopt ASU 2016-02 in the first quarter of 2019 and is currently in the process of evaluating the impact of the ASU's adoption on the Company's consolidated financial statements.

Financial Instruments - Credit Losses—In June 2016, the FASB issued ASU 2016-13, Measurement of Credit Losses on Financial Instruments. This update replaces the current incurred loss methodology for recognizing credit losses with a current expected credit loss model, which requires the measurement of all expected credit losses for financial assets held at the reporting date based on historical experience, current conditions, and reasonable and supportable forecasts. This amendment broadens the information that an entity must consider in developing its expected credit loss estimates. Additionally, the update amends the accounting for credit losses for available-for-sale debt securities and purchased financial assets with a more-than-insignificant amount of credit deterioration since origination. This update requires enhanced disclosures to help investors and other financial statement users better understand significant estimates and judgments used in estimating credit losses, as well as the credit quality and underwriting standards of a company’s loan portfolio. The amendments in this update are effective for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years. Early adoption in fiscal years beginning after December 15, 2018 is permitted. The amendment requires the use of the modified retrospective approach for adoption. The Company is in the process of evaluating the impact of the ASU’s adoption on the Company’s consolidated financial statements.

Derivatives and Hedging - Targeted Improvements to Accounting for Hedging Activities—In August 2017, the FASB issued ASU 2017-12, Derivatives and Hedging: Targeted Improvements to Accounting for Hedging Activities (ASU 2017-12). The purpose of this updated guidance is to better align a company’s financial reporting for hedging activities with the economic objectives of those activities. ASU 2017-12 is effective for public business entities for fiscal years beginning after December 15, 2018, with early adoption, including adoption in an interim period, permitted. ASU 2017-12 requires a modified retrospective transition method in which the Company will recognize the cumulative effect of the change on the opening balance of each affected component of equity in the consolidated statements of financial condition as of the date of adoption. While the Company continues to assess all potential impacts of the standard, we currently expect adoption to have an immaterial impact on our consolidated financial statements.

The Company reviewed ASU 2016-01, Financial Instruments – Recognition and Measurement of Financial Assets and Financial Liabilities (Topic 825), ASU 2016-15, Statement of Cash Flows: Classification of Certain Cash Receipts and Cash Payments, ASU 2017-04, Intangibles – Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment and ASU 2017-05, Other Income – Gains and Losses from the Derecognition of Nonfinancial Assets (Subtopic 610-20) and does not expect the adoption of these pronouncements to have a material impact on its financial statements.

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Investment Securities

9 Months Ended

Sep. 30, 2017

Investments, Debt and Equity Securities [Abstract]

Investment Securities

Note 3 Investment Securities

The Company’s investment securities portfolio is comprised of available-for-sale and held-to-maturity investment securities. These investment securities totaled $1.1 billion at September 30, 2017 and included $0.8 billion of available-for-sale securities and $0.3 billion of held-to-maturity securities. At December 31, 2016, investment securities totaled $1.2 billion and included $0.9 billion of available-for-sale securities and $0.3 billion of held-to-maturity securities.

Available-for-sale

At September 30, 2017 and December 31, 2016, the Company held $0.8 billion and $0.9 billion of available-for-sale investment securities, respectively. Available-for-sale securities are summarized as follows as of the dates indicated:

	September 30, 2017
	Amortized		Gross		Gross
	cost		unrealized gains		unrealized losses		Fair value
Mortgage-backed securities (“MBS”):
Residential mortgage pass-through securities issued or guaranteed by U.S. Government agencies or sponsored enterprises	$	178,649	$	3,127	$	(387)	$	181,389
Other residential MBS issued or guaranteed by U.S. Government agencies or sponsored enterprises		639,456		1,321		(12,298)		628,479
Municipal securities		1,646		118		—		1,764
Other securities		419		—		—		419
Total	$	820,170	$	4,566	$	(12,685)	$	812,051

	December 31, 2016
	Amortized		Gross		Gross
	cost		unrealized gains		unrealized losses		Fair value
Mortgage-backed securities (“MBS”):
Residential mortgage pass-through securities issued or guaranteed by U.S. Government agencies or sponsored enterprises	$	223,781	$	3,909	$	(530)	$	227,160
Other residential MBS issued or guaranteed by U.S. Government agencies or sponsored enterprises		666,616		2,124		(16,001)		652,739
Municipal securities		3,921		—		(7)		3,914
Other securities		419		—		—		419
Total	$	894,737	$	6,033	$	(16,538)	$	884,232

At September 30, 2017 and December 31, 2016, mortgage-backed securities represented primarily all of the Company’s available-for-sale investment portfolio and all mortgage-backed securities were backed by government sponsored enterprises (“GSE”) collateral such as Federal Home Loan Mortgage Corporation (“FHLMC”) and Federal National Mortgage Association (“FNMA”), and the government sponsored agency Government National Mortgage Association (“GNMA”).

The table below summarizes the available-for-sale securities with unrealized losses as of the dates shown, along with the length of the impairment period:

	September 30, 2017
	Less than 12 months				12 months or more				Total
	Fair		Unrealized		Fair		Unrealized		Fair		Unrealized
	value		losses		value		losses		value		losses
Mortgage-backed securities (“MBS”):
Residential mortgage pass-through securities issued or guaranteed by U.S. Government agencies or sponsored enterprises	$	54,344	$	(387)	$	—	$	—	$	54,344	$	(387)
Other residential MBS issued or guaranteed by U.S. Government agencies or sponsored enterprises		55,703		(657)		396,893		(11,641)		452,596		(12,298)
Total	$	110,047	$	(1,044)	$	396,893	$	(11,641)	$	506,940	$	(12,685)

	December 31, 2016
	Less than 12 months				12 months or more				Total
	Fair		Unrealized		Fair		Unrealized		Fair		Unrealized
	value		losses		value		losses		value		losses
Mortgage-backed securities (“MBS”):
Residential mortgage pass-through securities issued or guaranteed by U.S. Government agencies or sponsored enterprises	$	100,898	$	(530)	$	—	$	—	$	100,898	$	(530)
Other residential MBS issued or guaranteed by U.S. Government agencies or sponsored enterprises		137,576		(2,976)		385,707		(13,025)		523,283		(16,001)
Municipal securities		3,058		(7)		—		—		3,058		(7)
Total	$	241,532	$	(3,513)	$	385,707	$	(13,025)	$	627,239	$	(16,538)

The unrealized losses in the Company's investment portfolio at September 30, 2017 were caused by changes in interest rates. The portfolio included 66 securities, having an aggregate fair value of $506.9 million, which were in an unrealized loss position at September 30, 2017. During the nine months ended September 30, 2017, the Company recorded $0.2 million of other-than-temporary impairment (OTTI) included in other non-interest expense on the consolidated statements of operations. The OTTI credit charge was on a single municipal security, with an aggregate fair value of $0.9 million at September 30, 2017.

The unrealized losses in the Company's investment portfolio at December 31, 2016 were caused by changes in interest rates. The portfolio included 61 securities, having an aggregate fair value of $627.2 million, which were in an unrealized loss position at December 31, 2016. Management evaluated all of the available-for-sale securities in an unrealized position and concluded no OTTI existed at December 31, 2016.

The Company has no intention to sell these securities before recovery of their amortized cost and believes it will not be required to sell the securities before the recovery of their amortized cost.

Certain securities are pledged as collateral for public deposits, securities sold under agreements to repurchase, and to secure borrowing capacity at the Federal Reserve Bank and Federal Home Loan Bank (“FHLB”), if needed. The fair value of available-for-sale investment securities pledged as collateral totaled $301.0 million at September 30, 2017 and $373.7 million at December 31, 2016. Certain investment securities may also be pledged as collateral for the line of credit at the FHLB of Topeka; at September 30, 2017 and December 31, 2016, no securities were pledged for this purpose.

Mortgage-backed securities do not have a single maturity date and actual maturities may differ from contractual maturities depending on the repayment characteristics and experience of the underlying financial instruments. The estimated weighted average life of the available-for-sale mortgage-backed securities portfolio was 3.1 years at September 30, 2017 and 3.4 years at December 31, 2016. This estimate is based on assumptions and actual results may differ. At September 30, 2017 and December 31, 2016, the duration of the total available-for-sale investment portfolio was 2.9 years and 3.2 years, respectively.

As of September 30, 2017, municipal securities with an amortized cost of $0.8 million and fair value of $0.9 million were due in one year, municipal securities with an amortized cost and fair value of $0.3 million were due after one year through five years, and municipal securities with an amortized cost and fair value of $0.6 million were due after five years through ten years. Other securities of $0.4 million as of September 30, 2017, have no stated contractual maturity date.

Held-to-maturity

At September 30, 2017 and December 31, 2016, the Company held $275.4 million and $332.5 million of held-to-maturity investment securities, respectively. Held-to-maturity investment securities are summarized as follows as of the dates indicated:

	September 30, 2017
			Gross		Gross
	Amortized		unrealized		unrealized
	cost		gains		losses		Fair value
Mortgage-backed securities (“MBS”):
Residential mortgage pass-through securities issued or guaranteed by U.S. Government agencies or sponsored enterprises	$	217,431	$	1,459	$	(104)	$	218,786
Other residential MBS issued or guaranteed by U.S. Government agencies or sponsored enterprises		57,939		—		(1,117)		56,822
Total investment securities held-to-maturity	$	275,370	$	1,459	$	(1,221)	$	275,608

	December 31, 2016
			Gross		Gross
	Amortized		unrealized		unrealized
	cost		gains		losses		Fair value
Mortgage-backed securities (“MBS”):
Residential mortgage pass-through securities issued or guaranteed by U.S. Government agencies or sponsored enterprises	$	263,411	$	1,685	$	(234)	$	264,862
Other residential MBS issued or guaranteed by U.S. Government agencies or sponsored enterprises		69,094		16		(1,399)		67,711
Total investment securities held-to-maturity	$	332,505	$	1,701	$	(1,633)	$	332,573

The table below summarizes the held-to-maturity securities with unrealized losses as of the dates shown, along with the length of the impairment period:

	September 30, 2017
	Less than 12 months				12 months or more				Total
	Fair		Unrealized		Fair		Unrealized		Fair		Unrealized
	value		losses		value		losses		value		losses
Mortgage-backed securities (“MBS”):
Residential mortgage pass-through securities issued or guaranteed by U.S. Government agencies or sponsored enterprises	$	19,284	$	(104)	$	—	$	—	$	19,284	$	(104)
Other residential MBS issued or guaranteed by U.S. Government agencies or sponsored enterprises		17,983		(202)		31,762		(915)		49,745		(1,117)
Total	$	37,267	$	(306)	$	31,762	$	(915)	$	69,029	$	(1,221)

	December 31, 2016
	Less than 12 months				12 months or more				Total
	Fair		Unrealized		Fair		Unrealized		Fair		Unrealized
	value		losses		value		losses		value		losses
Mortgage-backed securities (“MBS”):
Residential mortgage pass-through securities issued or guaranteed by U.S. Government agencies or sponsored enterprises	$	27,799	$	(234)	$	—	$	—	$	27,799	$	(234)
Other residential MBS issued or guaranteed by U.S. Government agencies or sponsored enterprises		26,992		(357)		32,146		(1,042)		59,138		(1,399)
Total	$	54,791	$	(591)	$	32,146	$	(1,042)	$	86,937	$	(1,633)

The held-to-maturity portfolio included 13 securities, having an aggregate fair value of $69.0 million, which were in an unrealized loss position at September 30, 2017, compared to 15 securities, with a fair value of $86.9 million, at December 31, 2016.

Management evaluated all of the held-to-maturity securities in an unrealized loss position and concluded that no OTTI existed at September 30, 2017 or December 31, 2016. The unrealized losses in the Company's investments issued or guaranteed by U.S. government agencies or sponsored enterprises at September 30, 2017 were caused by changes in interest rates. The Company has no intention to sell these securities before recovery of their amortized cost and believes it will not be required to sell the securities before the recovery of their amortized cost.

The carrying value of held-to-maturity investment securities pledged as collateral totaled $142.1 million and $119.2 million at September 30, 2017 and December 31, 2016, respectively. 

Actual maturities of mortgage-backed securities may differ from scheduled maturities depending on the repayment characteristics and experience of the underlying financial instruments. The estimated weighted average expected life of the held-to-maturity mortgage-backed securities portfolio as of September 30, 2017 and December 31, 2016 was 3.1 years and 3.5 years, respectively. This estimate is based on assumptions and actual results may differ. The duration of the total held-to-maturity investment portfolio was 2.9 years and 3.2 years as of September 30, 2017 and December 31, 2016, respectively.

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Loans

9 Months Ended

Sep. 30, 2017

Receivables [Abstract]

Loans

Note 4 Loans

The loan portfolio is comprised of loans originated by the Company and loans that were acquired in connection with the Company’s acquisitions.

The table below shows the loan portfolio composition including carrying value by segment of loans accounted for under ASC Topic 310-30, Receivables—Loans and Debt Securities Acquired with Deteriorated Credit Quality, and loans not accounted for under this guidance, which includes the Company’s originated loans. The carrying value of loans is net of discounts on loans excluded from ASC 310-30, and fees and costs of $4.5 million and $6.3 million as of September 30, 2017 and December 31, 2016, respectively. At December 31, 2016, $14.4 million of non 310-30 loans were held-for-sale, most of which were in the residential real estate segment. The sale of these loans was completed in connection with the four banking center divestitures in the second quarter of 2017.

	September 30, 2017
	ASC 310-30 loans		Non 310-30 loans		Total loans		% of total
Commercial	$	31,875	$	1,776,008	$	1,807,883	57.9%
Commercial real estate non-owner occupied		79,798		481,856		561,654	18.0%
Residential real estate		13,420		710,954		724,374	23.2%
Consumer		503		26,129		26,632	0.9%
Total	$	125,596	$	2,994,947	$	3,120,543	100.0%

	December 31, 2016
	ASC 310-30 loans		Non 310-30 loans		Total loans		% of total
Commercial	$	39,280	$	1,521,150	$	1,560,430	54.6%
Commercial real estate non-owner occupied		89,150		437,642		526,792	18.4%
Residential real estate		16,524		728,361		744,885	26.0%
Consumer		898		27,916		28,814	1.0%
Total	$	145,852	$	2,715,069	$	2,860,921	100.0%

Delinquency for loans excluded from ASC 310-30 is shown in the following tables at September 30, 2017 and December 31, 2016, respectively:

	September 30, 2017
					Greater						Total		Loans > 90
	30-59		60-89		than 90						non		days past
	days  past		days past		days past		Total  past				310-30		due and		Non-
	due		due		due		due		Current		loans		still accruing		accrual
Loans excluded from ASC 310-30:
Commercial:
Commercial and industrial	$	715	$	200	$	1,393	$	2,308	$	1,284,047	$	1,286,355	$	150	$	3,783
Owner occupied commercial real estate		1,667		573		49		2,289		273,866		276,155		—		2,829
Agriculture		49		8		689		746		131,401		132,147		—		2,109
Energy		—		—		3,551		3,551		77,800		81,351		—		3,551
Total commercial		2,431		781		5,682		8,894		1,767,114		1,776,008		150		12,272
Commercial real estate non-owner occupied:
Construction		—		—		190		190		101,406		101,596		—		190
Acquisition/development		330		—		—		330		14,115		14,445		—		—
Multifamily		—		—		—		—		40,241		40,241		—		—
Non-owner occupied		653		—		—		653		324,921		325,574		—		607
Total commercial real estate		983		—		190		1,173		480,683		481,856		—		797
Residential real estate:
Senior lien		587		943		1,474		3,004		652,339		655,343		—		5,354
Junior lien		86		—		32		118		55,493		55,611		—		534
Total residential real estate		673		943		1,506		3,122		707,832		710,954		—		5,888
Consumer		186		76		6		268		25,861		26,129		6		200
Total loans excluded from ASC 310-30	$	4,273	$	1,800	$	7,384	$	13,457	$	2,981,490	$	2,994,947	$	156	$	19,157

	December 31, 2016
					Greater						Total		Loans > 90
	30-59		60-89		than 90						non		days past
	days past		days past		days past		Total  past				310-30		due and		Non-
	due		due		due		due		Current		loans		still accruing		accrual
Loans excluded from ASC 310-30:
Commercial:
Commercial and industrial	$	3,134	$	4,009	$	1,078	$	8,221	$	1,066,475	$	1,074,696	$	—	$	8,688
Owner occupied commercial real estate		583		216		56		855		220,689		221,544		—		2,056
Agriculture		501		—		—		501		134,136		134,637		—		1,905
Energy		2		—		6,548		6,550		83,723		90,273		—		12,645
Total commercial		4,220		4,225		7,682		16,127		1,505,023		1,521,150		—		25,294
Commercial real estate non-owner occupied:
Construction		—		—		—		—		90,314		90,314		—		—
Acquisition/development		—		—		—		—		13,306		13,306		—		—
Multifamily		—		—		—		—		24,954		24,954		—		—
Non-owner occupied		—		—		28		28		309,040		309,068		—		66
Total commercial real estate		—		—		28		28		437,614		437,642		—		66
Residential real estate:
Senior lien		888		645		1,458		2,991		672,699		675,690		—		4,522
Junior lien		115		61		22		198		52,473		52,671		—		654
Total residential real estate		1,003		706		1,480		3,189		725,172		728,361		—		5,176
Consumer		83		8		—		91		27,825		27,916		—		181
Total loans excluded from ASC 310-30	$	5,306	$	4,939	$	9,190	$	19,435	$	2,695,634	$	2,715,069	$	—	$	30,717

Loans are considered past due or delinquent when the contractual principal or interest due in accordance with the terms of the loan agreement remains unpaid after the due date of the scheduled payment. Pooled loans accounted for under ASC 310-30 that are 90 days or more past due and still accreting are generally considered to be performing and are included in loans 90 days or more past due and still accruing. Non-accrual loans include troubled debt restructurings on non-accrual status.

Non-accrual loans excluded from the scope of ASC 310-30 totaled $19.2 million at September 30, 2017, decreasing $11.6 million, or 37.6% from December 31, 2016 due to charge-offs of two previously identified energy loans totaling $6.1 million and one previously identified commercial and industrial loan totaling $2.5 million. In addition, one previously identified energy loan of $2.4 million was placed back on accrual during the third quarter of 2017. 

The Company’s internal risk rating system uses a series of grades which reflect its assessment of the credit quality of loans based on an analysis of the borrower's financial condition, liquidity and ability to meet contractual debt service requirements. Loans that are perceived to have acceptable risk are categorized as “Pass” loans. “Special mention” loans represent loans that have potential credit weaknesses that deserve close attention. Special mention loans include borrowers that have potential weaknesses or unwarranted risks that, unless corrected, may threaten the borrower's ability to meet debt service requirements. However, these borrowers are still believed to have the ability to respond to and resolve the financial issues that threaten their financial situation. Loans classified as “Substandard” have a well-defined credit weakness and are inadequately protected by the current paying capacity of the obligor or of the collateral pledged, if any. Although these loans are identified as potential problem loans, they may never become non-performing. Substandard loans have a distinct possibility of loss if the deficiencies are not corrected. “Doubtful” loans are loans that management believe the collection of payments in accordance with the terms of the loan agreement are highly questionable and improbable. Doubtful loans are deemed impaired and put on non-accrual status.

Credit exposure for all loans as determined by the Company’s internal risk rating system was as follows as of September 30, 2017 and December 31, 2016, respectively:

	September 30, 2017
			Special
	Pass		mention		Substandard		Doubtful		Total
Loans excluded from ASC 310-30:
Commercial:
Commercial and industrial	$	1,259,680	$	10,968	$	15,092	$	615	$	1,286,355
Owner occupied commercial real estate		252,816		17,154		5,925		260		276,155
Agriculture		108,832		21,206		2,076		33		132,147
Energy		75,356		2,444		3,551		—		81,351
Total commercial		1,696,684		51,772		26,644		908		1,776,008
Commercial real estate non-owner occupied:
Construction		101,406		—		190		—		101,596
Acquisition/development		14,445		—		—		—		14,445
Multifamily		38,088		—		2,153		—		40,241
Non-owner occupied		321,160		2,926		1,488		—		325,574
Total commercial real estate		475,099		2,926		3,831		—		481,856
Residential real estate:
Senior lien		649,317		248		5,615		163		655,343
Junior lien		54,705		—		906		—		55,611
Total residential real estate		704,022		248		6,521		163		710,954
Consumer		25,925		1		203		—		26,129
Total loans excluded from ASC 310-30	$	2,901,730	$	54,947	$	37,199	$	1,071	$	2,994,947
Loans accounted for under ASC 310-30:
Commercial	$	24,706	$	1,125	$	6,044	$	—	$	31,875
Commercial real estate non-owner occupied		51,780		1,074		26,944		—		79,798
Residential real estate		10,618		1,094		1,708		—		13,420
Consumer		343		10		150		—		503
Total loans accounted for under ASC 310-30	$	87,447	$	3,303	$	34,846	$	—	$	125,596
Total loans	$	2,989,177	$	58,250	$	72,045	$	1,071	$	3,120,543

	December 31, 2016
			Special
	Pass		mention		Substandard		Doubtful		Total
Loans excluded from ASC 310-30:
Commercial:
Commercial and industrial	$	1,041,326	$	7,243	$	25,636	$	491	$	1,074,696
Owner occupied commercial real estate		202,036		9,371		10,137		—		221,544
Agriculture		123,809		8,922		1,906		—		134,637
Energy		77,619		—		7,811		4,843		90,273
Total commercial		1,444,790		25,536		45,490		5,334		1,521,150
Commercial real estate non-owner occupied:
Construction		90,099		—		215		—		90,314
Acquisition/development		10,758		2,548		—		—		13,306
Multifamily		22,495		238		2,221		—		24,954
Non-owner occupied		300,922		5,895		2,251		—		309,068
Total commercial real estate		424,274		8,681		4,687		—		437,642
Residential real estate:
Senior lien		669,148		1,215		5,316		11		675,690
Junior lien		51,250		178		1,243		—		52,671
Total residential real estate		720,398		1,393		6,559		11		728,361
Consumer		27,669		59		188		—		27,916
Total loans excluded from ASC 310-30	$	2,617,131	$	35,669	$	56,924	$	5,345	$	2,715,069
Loans accounted for under ASC 310-30:
Commercial	$	27,436	$	610	$	11,234	$	—	$	39,280
Commercial real estate non-owner occupied		38,895		967		45,520		3,768		89,150
Residential real estate		12,477		1,327		2,720		—		16,524
Consumer		721		17		160		—		898
Total loans accounted for under ASC 310-30	$	79,529	$	2,921	$	59,634	$	3,768	$	145,852
Total loans	$	2,696,660	$	38,590	$	116,558	$	9,113	$	2,860,921

Non 310-30 special mention loans increased $19.3 million from December 31, 2016 due to upgrades from substandard and doubtful within the commercial and industrial and energy sectors and downgrades from pass within the agriculture and owner-occupied commercial real estate sectors. Non 310-30 substandard loans decreased $19.7 million from December 31, 2016 primarily due to paydowns, payoffs and upgrades to special mention and pass within the commercial and industrial, owner-occupied commercial real estate and energy sectors. Non 310-30 doubtful loans decreased $4.3 million from December 31, 2016 due to energy loan charge-offs during the period.

Impaired Loans

Loans are considered to be impaired when it is probable that the Company will not be able to collect all amounts due in accordance with the contractual terms of the loan agreement. Impaired loans are comprised of loans excluded from ASC 310-30 on non-accrual status, loans in bankruptcy, and troubled debt restructurings (“TDRs”) described below. If a specific allowance is warranted based on the borrower’s overall financial condition, the specific allowance is calculated based on discounted cash flows using the loan’s initial contractual effective interest rate or the fair value of the collateral less selling costs for collateral dependent loans. At September 30, 2017, the Company measured $17.4 million of impaired loans based on the fair value of the collateral less selling costs and $2.5 million of impaired loans using discounted cash flows and the loan’s initial contractual effective interest rate. Impaired loans totaling $8.6 million that individually were less than $250 thousand each, were measured through the general ALL reserves due to their relatively small size.

At September 30, 2017 and December 31, 2016, the Company’s recorded investments in impaired loans were $28.5 million and $38.3 million, respectively, of which $7.6 million and $5.8 million, respectively, were accruing TDRs. Impaired loans at September 30, 2017 were primarily comprised of six relationships totaling $12.3 million. Two of the relationships were in the energy sector totaling $6.0 million, two of the relationships were in the commercial and industrial sector totaling $3.0 million, one relationship was in the owner-occupied commercial real estate sector totaling $2.0 million and one relationship was in the agricultural sector totaling $1.3 million. Impaired loans had a collective related allowance for loan losses allocated to them of $1.1 million and $2.4 million at September 30, 2017 and December 31, 2016, respectively.

Additional information regarding impaired loans at September 30, 2017 and December 31, 2016 is set forth in the table below:

	September 30, 2017						December 31, 2016
					Allowance						Allowance
	Unpaid				for loan		Unpaid				for loan
	principal		Recorded		losses		principal		Recorded		losses
	balance		investment		allocated		balance		investment		allocated
With no related allowance recorded:
Commercial:
Commercial and industrial	$	5,762	$	4,409	$	—	$	8,671	$	7,495	$	—
Owner occupied commercial real estate		2,198		2,059		—		3,350		3,197		—
Agriculture		1,534		1,294		—		2,044		1,987		—
Energy		9,367		5,995		—		17,142		6,105		—
Total commercial		18,861		13,757		—		31,207		18,784		—
Commercial real estate non-owner occupied:
Construction		215		190		—		—		—		—
Acquisition/development		—		—		—		—		—		—
Multifamily		30		30		—		33		33		—
Non-owner occupied		917		864		—		394		343		—
Total commercial real estate		1,162		1,084		—		427		376		—
Residential real estate:
Senior lien		597		572		—		1,551		1,426		—
Junior lien		—		—		—		54		51		—
Total residential real estate		597		572		—		1,605		1,477		—
Consumer		—		—		—		4		4		—
Total impaired loans with no related allowance recorded	$	20,620	$	15,413	$	—	$	33,243	$	20,641	$	—
With a related allowance recorded:
Commercial:
Commercial and industrial	$	4,200	$	1,612	$	617	$	3,495	$	3,464	$	492
Owner occupied commercial real estate		2,631		2,450		264		957		642		2
Agriculture		932		895		33		—		—		—
Energy		—		—		—		11,216		6,548		1,866
Total commercial		7,763		4,957		914		15,668		10,654		2,360
Commercial real estate non-owner occupied:
Construction		—		—		—		—		—		—
Acquisition/development		—		—		—		—		—		—
Multifamily		—		—		—		—		—		—
Non-owner occupied		214		207		1		261		255		1
Total commercial real estate		214		207		1		261		255		1
Residential real estate:
Senior lien		6,993		6,282		186		5,646		5,016		31
Junior lien		1,641		1,398		10		1,781		1,532		14
Total residential real estate		8,634		7,680		196		7,427		6,548		45
Consumer		207		202		1		188		184		2
Total impaired loans with a related allowance recorded	$	16,818	$	13,046	$	1,112	$	23,544	$	17,641	$	2,408
Total impaired loans	$	37,438	$	28,459	$	1,112	$	56,787	$	38,282	$	2,408

The table below shows additional information regarding the average recorded investment and interest income recognized on impaired loans for the periods presented:

	For the three months ended
	September 30, 2017				September 30, 2016
	Average recorded investment		Interest income recognized		Average recorded investment		Interest income recognized
With no related allowance recorded:
Commercial:
Commercial and industrial	$	4,272	$	40	$	9,589	$	39
Owner occupied commercial real estate		2,069		19		1,513		22
Agriculture		1,349		—		1,845		—
Energy		7,960		116		17,142		—
Total commercial		15,650		175		30,089		61
Commercial real estate non-owner occupied:
Construction		—		—		—		—
Acquisition/development		—		—		—		—
Multifamily		—		—		—		—
Non-owner occupied		871		5		363		6
Total commercial real estate		871		5		363		6
Residential real estate:
Senior lien		574		—		1,555		5
Junior lien		—		—		53		—
Total residential real estate		574		—		1,608		5
Consumer		—		—		5		—
Total impaired loans with no related allowance recorded	$	17,095	$	180	$	32,065	$	72
With a related allowance recorded:
Commercial:
Commercial and industrial	$	3,692	$	—	$	35	$	—
Owner occupied commercial real estate		2,456		5		730		8
Agriculture		896		1		176		1
Energy		—		—		6,436		—
Total commercial		7,044		6		7,377		9
Commercial real estate non-owner occupied:
Construction		190		—		—		—
Acquisition/development		—		—		—		—
Multifamily		30		—		34		—
Non-owner occupied		209		2		265		3
Total commercial real estate		429		2		299		3
Residential real estate:
Senior lien		6,334		20		4,508		25
Junior lien		1,409		12		1,696		16
Total residential real estate		7,743		32		6,204		41
Consumer		206		—		209		—
Total impaired loans with a related allowance recorded	$	15,422	$	40	$	14,089	$	53
Total impaired loans	$	32,517	$	220	$	46,154	$	125

	For the nine months ended
	September 30, 2017				September 30, 2016
	Average recorded investment		Interest income recognized		Average recorded investment		Interest income recognized
With no related allowance recorded:
Commercial:
Commercial and industrial	$	5,802	$	113	$	10,511	$	177
Owner occupied commercial real estate		2,116		60		1,539		70
Agriculture		1,470		—		1,845		—
Energy		9,035		116		20,327		—
Total Commercial		18,423		289		34,222		247
Commercial real estate non-owner occupied:
Construction		—		—		—		—
Acquisition/development		—		—		—		—
Multifamily		—		—		—		—
Non-owner occupied		886		17		376		16
Total commercial real estate		886		17		376		16
Residential real estate:
Senior lien		585		—		1,578		16
Junior lien		—		—		54		1
Total residential real estate		585		—		1,632		17
Consumer		—		—		5		—
Total impaired loans with no related allowance recorded	$	19,894	$	306	$	36,235	$	280
With a related allowance recorded:
Commercial:
Commercial and industrial	$	4,363	$	—	$	44	$	—
Owner occupied commercial real estate		2,479		15		761		15
Agriculture		907		4		178		4
Energy		—		—		6,377		—
Total Commercial		7,749		19		7,360		19
Commercial real estate non-owner occupied:
Construction		190		—		—		—
Acquisition/development		—		—		—		—
Multifamily		31		1		35		1
Non-owner occupied		216		7		272		11
Total commercial real estate		437		8		307		12
Residential real estate:
Senior lien		6,494		60		4,620		70
Junior lien		1,444		36		1,733		47
Total residential real estate		7,938		96		6,353		117
Consumer		218		—		212		—
Total impaired loans with a related allowance recorded	$	16,342	$	123	$	14,232	$	148
Total impaired loans	$	36,236	$	429	$	50,467	$	428

Interest income recognized on impaired loans noted in the table above primarily represents interest earned on accruing troubled debt restructurings. Interest income recognized on impaired loans during the three months ended September 30, 2017 and 2016 was $0.2 million and $0.1 million, respectively. Interest income recognized on impaired loans during the nine months ended September 30, 2017 and 2016 was $0.4 million and $0.4 million, respectively.

Troubled debt restructurings

It is the Company’s policy to review each prospective credit in order to determine the appropriateness and the adequacy of security or collateral prior to making a loan. In the event of borrower default, the Company seeks recovery in compliance with lending laws, the respective loan agreements and credit monitoring and remediation procedures that may include restructuring a loan to provide a concession by the Company to the borrower from their original terms due to borrower financial difficulties in order to facilitate repayment. Additionally, if a borrower’s repayment obligation has been discharged by a court, and that debt has not been reaffirmed by the borrower, regardless of past due status, the loan is considered to be a TDR.

Non-accruing TDRs at September 30, 2017 and December 31, 2016 totaled $9.6 million and $16.7 million, respectively.

During the nine months ended September 30, 2017, the Company restructured eight loans with a recorded investment of $4.0 million at September 30, 2017. Substantially all of the loan modifications were a reduction of the principal payment, a reduction in interest rate, or an extension of term. Loan modifications to loans accounted for under ASC 310-30 are not considered TDRs. The table below provides additional information related to accruing TDRs at September 30, 2017 and December 31, 2016:

	September 30, 2017
	Recorded		Average year-to-date		Unpaid		Unfunded commitments
	investment		recorded investments		principal balance		to fund TDRs
Commercial	$	5,680	$	6,026	$	6,003	$	1,813
Commercial real estate non-owner occupied		470		499		522		—
Residential real estate		1,468		1,510		1,480		2
Consumer		2		4		2		—
Total	$	7,620	$	8,039	$	8,007	$	1,815

	December 31, 2016
	Recorded		Average year-to-date		Unpaid		Unfunded commitments
	investment		recorded investments		principal balance		to fund TDRs
Commercial	$	3,302	$	3,440	$	3,464	$	100
Commercial real estate non-owner occupied		538		572		590		—
Residential real estate		1,920		1,996		1,969		2
Consumer		7		9		7		—
Total	$	5,767	$	6,017	$	6,030	$	102

The following table summarizes the Company’s carrying value of non-accrual TDRs as of September 30, 2017 and December 31, 2016:

	September 30, 2017		December 31, 2016
Commercial	$	8,143	$	15,265
Commercial real estate non-owner occupied		—		—
Residential real estate		1,284		1,301
Consumer		173		142
Total non-accruing TDRs	$	9,600	$	16,708

At September 30, 2017 and December 31, 2016, the Company had $7.6 million and $5.8 million, respectively, of accruing TDRs that had been restructured from the original terms in order to facilitate repayment. Accrual of interest is resumed on loans that were on non-accrual only after the loan has performed sufficiently. The Company had one TDRthat was modified within the past twelve months and had defaulted on its restructured terms during the three months ended September 30, 2017, and four TDRs that were modified within the past twelve months and had defaulted on their restructured terms during the nine months ended September 30, 2017. The defaulted TDRs consisted of one energy loan totaling $6.7 million, two commercial and industrial loans totaling $0.7 million and one small residential loan. Non-accruing TDRs decreased $7.1 million from December 31, 2016 due to charge-offs within the commercial loan segment. The allowance for loan losses related to troubled debt restructurings on non-accrual status is determined by individual evaluation, including collateral adequacy, using the same process as loans on non-accrual status which are not classified as troubled debt restructurings.

During the three and nine months ended September 30, 2016, the Company had three and five TDRs that had been modified within the past 12 months that defaulted on their restructured terms, respectively. For purposes of this disclosure, the Company considers “default” to mean 90 days or more past due on principal or interest.

Loans accounted for under ASC 310-30

Loan pools accounted for under ASC Topic 310-30 are periodically re-measured to determine expected future cash flows. In determining the expected cash flows, the timing of cash flows and prepayment assumptions for smaller homogeneous loans are based on statistical models that take into account factors such as the loan interest rate, credit profile of the borrowers, the years in which the loans were originated, and whether the loans are fixed or variable rate loans. Prepayments may be assumed on loans if circumstances specific to that loan warrant a prepayment assumption. The re-measurement of loans accounted for under ASC 310-30 resulted in the following changes in the carrying amount of accretable yield during the nine months ended September 30, 2017 and 2016:

	September 30, 2017		September 30, 2016
Accretable yield beginning balance	$	60,476	$	84,194
Reclassification from non-accretable difference		9,697		10,611
Reclassification to non-accretable difference		(907)		(4,479)
Accretion		(17,718)		(26,653)
Accretable yield ending balance	$	51,548	$	63,673

Below is the composition of the net book value for loans accounted for under ASC 310-30 at September 30, 2017 and December 31, 2016:

	September 30, 2017		December 31, 2016
Contractual cash flows	$	499,652	$	537,611
Non-accretable difference		(322,508)		(331,283)
Accretable yield		(51,548)		(60,476)
Loans accounted for under ASC 310-30	$	125,596	$	145,852

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Allowance for Loan Losses

9 Months Ended

Sep. 30, 2017

Receivables [Abstract]

Allowance for Loan Losses

Note 5 Allowance for Loan Losses

The tables below detail the Company’s allowance for loan losses (“ALL”) and recorded investment in loans as of and for the three and nine months ended September 30, 2017 and 2016:

	Three months ended  September 30, 2017
			Non-owner
			occupied
			commercial		Residential
	Commercial		real estate		real estate		Consumer		Total
Beginning balance	$	24,656	$	5,934	$	4,067	$	302	$	34,959
Non 310-30 beginning balance		24,656		5,800		4,067		294		34,817
Charge-offs		(8,618)		—		(16)		(209)		(8,843)
Recoveries		11		—		14		26		51
Provision		4,063		(280)		77		162		4,022
Non 310-30 ending balance		20,112		5,520		4,142		273		30,047
ASC 310-30 beginning balance		—		134		—		8		142
Charge-offs		—		—		—		—		—
Recoveries		—		—		—		—		—
(Recoupment) provision		—		(134)		—		(8)		(142)
ASC 310-30 ending balance		—		—		—		—		—
Ending balance	$	20,112	$	5,520	$	4,142	$	273	$	30,047

	Three months ended  September 30, 2016
			Non-owner
			occupied
			commercial		Residential
	Commercial		real estate		real estate		Consumer		Total
Beginning balance	$	29,982	$	5,368	$	4,504	$	252	$	40,106
Non 310-30 beginning balance		29,980		5,157		4,504		234		39,875
Charge-offs		(17,204)		—		(166)		(170)		(17,540)
Recoveries		19		8		84		57		168
Provision		5,112		178		(177)		162		5,275
Non 310-30 ending balance		17,907		5,343		4,245		283		27,778
ASC 310-30 beginning balance		2		211		—		18		231
Charge-offs		—		—		—		(6)		(6)
Recoveries		—		—		—		—		—
Provision (recoupment)		27		3		—		(12)		18
ASC 310-30 ending balance		29		214		—		—		243
Ending balance	$	17,936	$	5,557	$	4,245	$	283	$	28,021

	Nine months ended September 30, 2017
			Non-owner
			occupied
			commercial		Residential
	Commercial		real estate		real estate		Consumer		Total
Beginning balance	$	18,821	$	5,642	$	4,387	$	324	$	29,174
Non 310-30 beginning balance		18,821		5,422		4,387		319		28,949
Charge-offs		(8,638)		—		(26)		(510)		(9,174)
Recoveries		52		20		127		148		347
Provision		9,877		78		(346)		316		9,925
Non 310-30 ending balance		20,112		5,520		4,142		273		30,047
ASC 310-30 beginning balance		—		220		—		5		225
Charge-offs		—		—		—		—		—
Recoveries		—		—		—		—		—
Recoupment		—		(220)		—		(5)		(225)
ASC 310-30 ending balance		—		—		—		—		—
Ending balance	$	20,112	$	5,520	$	4,142	$	273	$	30,047
Ending allowance balance attributable to:
Non 310-30 loans individually evaluated for impairment	$	914	$	2	$	195	$	1	$	1,112
Non 310-30 loans collectively evaluated for impairment		19,198		5,518		3,947		272		28,935
ASC 310-30 loans		—		—		—		—		—
Total ending allowance balance	$	20,112	$	5,520	$	4,142	$	273	$	30,047
Loans:
Non 310-30 individually evaluated for impairment	$	18,714	$	1,291	$	8,252	$	202	$	28,459
Non 310-30 collectively evaluated for impairment		1,757,294		480,565		702,702		25,927		2,966,488
ASC 310-30 loans		31,875		79,798		13,420		503		125,596
Total loans	$	1,807,883	$	561,654	$	724,374	$	26,632	$	3,120,543

	Nine months ended September 30, 2016
			Non-owner
			occupied
			commercial		Residential
	Commercial		real estate		real estate		Consumer		Total
Beginning balance	$	17,261	$	4,166	$	5,281	$	411	$	27,119
Non 310-30 beginning balance		16,473		3,939		5,245		385		26,042
Charge-offs		(20,684)		(276)		(363)		(558)		(21,881)
Recoveries		43		73		106		242		464
Provision		22,075		1,607		(743)		214		23,153
Non 310-30 ending balance		17,907		5,343		4,245		283		27,778
ASC 310-30 beginning balance		788		227		36		26		1,077
Charge-offs		—		(41)		—		(6)		(47)
Recoveries		—		—		—		—		—
(Recoupment) provision		(759)		28		(36)		(20)		(787)
ASC 310-30 ending balance		29		214		—		—		243
Ending balance	$	17,936	$	5,557	$	4,245	$	283	$	28,021
Ending allowance balance attributable to:
Non 310-30 loans individually evaluated for impairment	$	1,462	$	1	$	34	$	2	$	1,499
Non 310-30 loans collectively evaluated for impairment		16,445		5,342		4,211		281		26,279
ASC 310-30 loans		29		214		—		—		243
Total ending allowance balance	$	17,936	$	5,557	$	4,245	$	283	$	28,021
Loans:
Non 310-30 individually evaluated for impairment	$	26,743	$	654	$	6,995	$	210	$	34,602
Non 310-30 collectively evaluated for impairment		1,450,524		452,594		699,796		27,376		2,630,290
ASC 310-30 loans		43,339		95,487		17,654		1,183		157,663
Total loans	$	1,520,606	$	548,735	$	724,445	$	28,769	$	2,822,555

In evaluating the loan portfolio for an appropriate ALL level, non-impaired loans that were not accounted for under ASC 310-30 were grouped into segments based on broad characteristics such as primary use and underlying collateral. Within the segments, the portfolio was further disaggregated into classes of loans with similar attributes and risk characteristics for purposes of applying loss ratios and determining applicable subjective adjustments to the ALL. The application of subjective adjustments was based upon qualitative risk factors, including economic trends and conditions, industry conditions, asset quality, loss trends, lending management, portfolio growth and loan review/internal audit results.

Net charge-offs on non 310-30 loans during the three and nine months ended September 30, 2017 were $8.8 million and $8.8 million, respectively. Management's evaluation of credit quality resulted in a provision for loan losses on the non 310-30 loans of $4.0 million and $9.9 million during the three and nine months ended September 30, 2017, respectively. Provision for the three months ended September 30, 2017 included $2.9 million related to one non-accrual energy loan and general reserves on net loan growth. Provision for the nine months ended September 30, 2017 included $6.3 million of specific reserves on two previously identified energy loans and one previously identified commercial and industrial loan. The remaining provision for the nine months ended September 30, 2017 was for general reserves on net loan growth.

During the nine months ended September 30, 2017, the Company re-estimated the expected cash flows of the loan pools accounted for under ASC 310-30. The re-measurement resulted in a net recoupment of $142 thousand and $225 thousand for the three and nine months ended September 30, 2017, respectively. The net recoupment was primarily due to a recoupment of $134 thousand in the non-owner occupied commercial real estate segment during the three months ended September 30, 2017, and primarily due to a recoupment of $220 thousand in the non-owner occupied commercial real estate segment for the nine months ended September 30, 2017.

Net charge-offs on non 310-30 loans during the three and nine months ended September 30, 2016 were $17.4 million and $21.4 million, respectively. Management’s evaluation resulted in a provision for loan losses on the non 310-30 loans of $5.3 million and $23.2 million during the three and nine months ended September 30, 2016, respectively. The provision was driven by loan growth and $3.9 million and $19.0 million of provision against the energy portfolio for the three and nine months ended September 30, 2016, respectively.

During the nine months ended September 30, 2016, the Company re-estimated the expected cash flows of the loan pools accounted for under ASC 310-30. The re-measurement resulted in a net provision of $18 thousand and a net recoupment of $787 thousand for the three and nine months ended September 30, 2016, respectively, which was comprised primarily of a provision of $27 thousand in the commercial segment, offset by recoupments of $12 thousand in the consumer segment for the three months ended September 30, 2016, and comprised primarily of a recoupment of $759 thousand in the commercial segment for the nine months ended September 30, 2016.

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Other Real Estate Owned

9 Months Ended

Sep. 30, 2017

FDIC Loss-Sharing Related

Other Real Estate Owned

Note 6 Other Real Estate Owned

The table below details the OREO activity during the nine months ended September 30, 2017 and 2016:

	For the nine months ended September 30,
	2017		2016
Beginning balance	$	15,662	$	20,814
Transfers from loan portfolio, at fair value		760		4,755
Impairments		(766)		(262)
Sales, net		(3,326)		(4,107)
Ending balance	$	12,330	$	21,200

The Company did not have any minority interest in participated other real estate owned at September 30, 2017. At December 31, 2016, OREO balances excluded $1.6 million of the Company’s minority interests in OREO, which are held by outside banks where the Company was not the lead bank and does not have a controlling interest. The Company maintains a receivable in other assets for these minority interests. Included in Sales, net are net gains of $2.3 million and $4.1 million for the nine months ended September 30, 2017 and 2016, respectively.

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Borrowings

9 Months Ended

Sep. 30, 2017

Disclosure of Repurchase Agreements [Abstract]

Borrowings

Note 7 Borrowings

As of September 30, 2017 and December 31, 2016, the Company sold securities under agreements to repurchase totaling $92.8 million and $92.0 million, respectively, and none were for periods longer than one day. The Company pledged mortgage-backed securities with a fair value of approximately $126.5 million and $99.1 million as of September 30, 2017 and December 31, 2016, respectively, for these agreements. The Company monitors collateral levels on a continuous basis and may be required to provide additional collateral based on the fair value of the underlying securities. As of September 30, 2017 and December 31, 2016, the Company had $33.7 million and $7.0 million of excess collateral pledged for repurchase agreements, respectively. The repurchase agreements are subject to a master netting arrangement; however, the Company has not offset any of the amounts presented in the consolidated financial statements.

As a member of the FHLB, the Bank has access to a line of credit and term financing from the FHLB with total available credit of $787.4 million at September 30, 2017. At September 30, 2017 and December 31, 2016, the Bank had $129.1 million and $25.0 million in term advances from the FHLB, respectively. The term advances have fixed interest rates of 1.31% - 2.33%, with maturity dates of 2018 - 2020. The Bank had investment securities pledged as collateral for FHLB advances in the amount of $27.6 million at September 30, 2017 and $28.8 million at December 31, 2016. Interest expense related to FHLB advances totaled $0.6 million and $1.3 million for the three and nine months ended September 30, 2017, respectively, and $0.2 million and $0.5 million for the three and nine months ended September 30, 2016, respectively.

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Regulatory Capital

9 Months Ended

Sep. 30, 2017

FDIC Loss-Sharing Related

Regulatory Capital

Note 8 Regulatory Capital

As a bank holding company, the Company is subject to regulatory capital adequacy requirements implemented by the Federal Reserve. The federal banking agencies have risk-based capital adequacy regulations intended to provide a measure of capital adequacy that reflects the degree of risk associated with a banking organization’s operations. Under these regulations, assets are assigned to one of several risk categories, and nominal dollar amounts of assets and credit equivalent amounts of off-balance-sheet items are multiplied by a risk adjustment percentage for the category.

The new Basel III rules, effective January 1, 2015, changed the components of regulatory capital and changed the way in which risk ratings are assigned to various categories of bank assets. Also, a new Tier I common risk-based ratio was defined. Under the Basel III requirements, at September 30, 2017, the Company and the Bank met all capital requirements and the Bank had regulatory capital ratios in excess of the levels established for well-capitalized institutions.

At September 30, 2017 and December 31, 2016, the Bank met the requirements to be considered “well capitalized” under the regulatory framework for prompt corrective action. To be categorized as “well-capitalized”, the Bank must maintain capital ratios as set forth in the table below. The following table sets forth the capital ratios of the Company and the Bank at September 30, 2017 and December 31, 2016.

	September 30, 2017
				Required to be			Required to be
				well capitalized under			considered
				prompt corrective			adequately
	Actual			action provisions			capitalized
	Ratio	Amount		Ratio	Amount		Ratio	Amount
Tier 1 leverage ratio:
Consolidated	10.4%	$	482,758	N/A		N/A	4.0%	$	185,124
NBH Bank	8.5%		390,995	5.0%	$	230,646	4.0%		184,517
Common equity tier 1 risk-based capital:
Consolidated	13.5%	$	482,758	N/A		N/A	4.5%	$	208,265
NBH Bank	11.0%		390,995	6.5%	$	299,840	4.5%		207,582
Tier 1 risk-based capital ratio:
Consolidated	13.5%	$	482,758	N/A		N/A	6.0%	$	214,123
NBH Bank	11.0%		390,995	8.0%	$	284,224	6.0%		213,168
Total risk-based capital ratio:
Consolidated	14.4%	$	513,130	N/A		N/A	8.0%	$	285,498
NBH Bank	11.9%		421,368	10.0%	$	355,280	8.0%		284,224

	December 31, 2016
				Required to be			Required to be
				well capitalized under			considered
				prompt corrective			adequately
	Actual			action provisions			capitalized
	Ratio	Amount		Ratio	Amount		Ratio	Amount
Tier 1 leverage ratio:
Consolidated	10.4%	$	470,259	N/A		N/A	4.0%	$	181,019
NBH Bank	8.6%		389,189	4.5%	$	202,903	4.0%		180,358
Common equity tier 1 risk-based capital:
Consolidated	14.2%	$	470,259	N/A		N/A	4.5%	$	203,647
NBH Bank	11.8%		389,189	6.5%	$	293,082	4.5%		202,903
Tier 1 risk-based capital ratio:
Consolidated	14.2%	$	470,259	N/A		N/A	6.0%	$	199,467
NBH Bank	11.8%		389,189	8.0%	$	264,596	6.0%		198,447
Total risk-based capital ratio:
Consolidated	15.0%	$	499,759	N/A		N/A	8.0%	$	265,955
NBH Bank	12.7%		418,689	10.0%	$	330,745	8.0%		264,596

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Stock-based Compensation and Benefits

9 Months Ended

Sep. 30, 2017

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Stock-based Compensation and Benefits

Note 9 Stock-based Compensation and Benefits

The Company provides stock-based compensation in accordance with shareholder-approved plans. During the second quarter of 2014, shareholders approved the 2014 Omnibus Incentive Plan (the "2014 Plan"). The 2014 Plan replaces the NBH Holdings Corp. 2009 Equity Incentive Plan (the "Prior Plan"), pursuant to which the Company granted equity awards prior to the approval of the 2014 Plan. Pursuant to the 2014 Plan, the Compensation Committee of the Board of Directors has the authority to grant, from time to time, awards of stock options, stock appreciation rights, restricted stock, restricted stock units, performance units, other stock-based awards, or any combination thereof to eligible persons.

Stock options

The Company issued stock options during the nine months ended September 30, 2017 and 2016, which are primarily time-vesting with 1/3 vesting on each of the first, second and third anniversary of the date of grant or date of hire.

The expense associated with the awarded stock options was measured at fair value using a Black-Scholes option-pricing model. The outstanding unvested option awards vest on a graded basis over 1-3 years of continuous service and have 7-10 year contractual terms.

The following table summarizes stock option activity for the nine months ended September 30, 2017:

				Weighted
				average
		Weighted		remaining
		average		contractual	Aggregate
		exercise		term in	intrinsic
	Options	price		years	value
Outstanding at December 31, 2016	2,185,922	$	19.81	4.85	$	7,753
Granted	100,401		33.98
Exercised	(598,728)		19.90
Forfeited	(26,455)		22.11
Outstanding at September 30, 2017	1,661,140	$	20.62	4.25	$	25,042
Options exercisable at September 30, 2017	1,425,900	$	19.82	3.52	$	22,829
Options vested and expected to vest	1,644,451	$	20.55	4.21	$	24,905

Stock option expense is a component of salaries and benefits in the consolidated statements of operations and totaled $0.1 million and $0.2 million for the three months ended September 30, 2017 and 2016, respectively, and $0.5 million and $0.5 million for the nine months ended September 30, 2017 and 2016, respectively. At September 30, 2017, there was $0.7 million of total unrecognized compensation cost related to non-vested stock options granted under the plans. The cost is expected to be recognized over a weighted average period of 2.2 years.

Restricted stock awards

The Company issued time based restricted stock awards during the nine months ended September 30, 2017 and 2016. The restricted stock awards vest over a range of a 1 - 3 year period. Restricted stock with time-based vesting was valued at the fair value of the shares on the date of grant as they are assumed to be held beyond the vesting period.

No market-based stock awards were granted during the nine months ended September 30, 2017. During nine months ended September 30, 2016, the Company granted market-based awards of 26,594 shares in accordance with the 2014 Plan. These shares have a five-year performance period. The restricted stock shares vest upon the later of the Company’s stock price achieving an established price goal during the performance period, and the third anniversary of the date of grant. The fair value of these awards was determined using a Monte Carlo Simulation at grant date. The grant date fair value of these awards was $11.28. As of September 30, 2017, the market-based performance condition had been met for these awards and the total unrecognized compensation cost related to non-vested awards totaled $0.2 million, and is expected to be recognized over a weighted average period of approximately 1.7 years.

Performance stock units

During the nine months ended September 30, 2017 and 2016, the Company granted 49,758 and 91,342 performance stock units in accordance with the 2014 Plan, respectively. These performance stock units granted represent initial target awards and do not reflect potential increases or decreases resulting from the final performance results, which are to be determined at the end of the three-year performance period (vesting date). The actual number of shares to be awarded at the end of the performance period will range from 0% - 150% of the initial target awards. 60% of the award is based on the Company’s cumulative earnings per share (EPS target) during the performance period, and 40% of the award is based on the Company’s cumulative total shareholder return (TSR target), or TSR, during the performance period. On the vesting date, the Company’s TSR will be compared to the respective TSRs of the companies comprising the KBW Regional Index at the grant date to determine the shares awarded. The fair value of the EPS target portion of the award was determined based on the closing stock price of the Company’s common stock on the grant date. The fair value of the TSR target portion of the award was determined using a Monte Carlo Simulation at the grant date. The weighted-average grant date fair value per unit for awards granted during the nine months ended September 30, 2017 of the EPS target portion and the TSR target portion was $34.04 and $32.06, respectively.

The following table summarizes restricted stock and performance stock activity during the nine months ended September 30, 2017:

		Weighted				Weighted
	Restricted	average grant-		Performance		average grant-
	shares	date fair value		stock units		date fair value
Unvested at December 31, 2016	499,271	$	15.82	85,295	$	18.22
Granted	66,471		33.43	49,758		33.22
Vested	(300,448)		15.31	—		—
Forfeited	(18,817)		17.53	(9,278)		21.46
Unvested at September 30, 2017	246,477	$	20.41	125,775	$	23.91

As of September 30, 2017, the total unrecognized compensation cost related to non-vested restricted stock awards and units totaled $3.6 million, and is expected to be recognized over a weighted average period of approximately 2.0 years. Expense related to non-vested restricted awards and units totaled $0.8 million and $0.7 million during the three months ended September 30, 2017 and 2016, respectively, and $2.3 million and $2.2 million during the nine months ended September 30, 2017 and 2016, respectively, and is a component of salaries and benefits in the Company’s consolidated statements of operations.

Employee Stock Purchase Plan

The 2014 Employee Stock Purchase Plan (“ESPP”) is intended to be a qualified plan within the meaning of Section 423 of the Internal Revenue Code of 1986 and allows eligible employees to purchase shares of common stock through payroll deductions up to a limit of $25,000 per calendar year and 2,000 shares per offering period. The price an employee pays for shares is 90.0% of the fair market value of Company common stock on the last day of the offering period. The offering period is the six-month period commencing on March 1 and September 1 of each year and ending on August 31 and February 28 (or February 29 in the case of a leap year) of each year. There are no vesting or other restrictions on the stock purchased by employees under the ESPP. Under the ESPP, the total number of shares of common stock reserved for issuance totaled 400,000 shares, of which 355,159 were available for issuance.

Under the ESPP, employees purchased 11,178 shares during the nine months ended September 30, 2017.

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Warrants

9 Months Ended

Sep. 30, 2017

Warrants and Rights Note Disclosure [Abstract]

Warrants

Note 10 Warrants

During the first quarter of 2017, 250,750 warrants were exercised in a non-cash transaction, representing the remaining outstanding warrants. The warrants were granted to certain lead shareholders of the Company at the time of the Company’s initial capital raise (2009-2010), all with an exercise price of $20.00 per share. Refer to the consolidated statements of changes in shareholders’ equity for additional detail.

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Common Stock

9 Months Ended

Sep. 30, 2017

Equity [Abstract]

Common Stock

Note 11 Common Stock

The Company had 26,802,964 and 26,386,583 shares of Class A common stock outstanding at September 30, 2017 and December 31, 2016, respectively. Additionally, the Company had 246,477 and 499,271 shares outstanding at September 30, 2017 and December 31, 2016, respectively, of restricted Class A common stock issued but not yet vested under the 2014 Omnibus Incentive Plan and the Prior Plan that are not included in shares outstanding until such time that they are vested; however, these shares do have voting and certain dividend rights during the vesting period.

On August 5, 2016, the Board of Directors authorized a new share repurchase program for up to $50.0 million from time to time in either the open market or through privately negotiated transactions. The remaining authorization under this program as of September 30, 2017 was $12.6 million.

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Income Per Share

9 Months Ended

Sep. 30, 2017

Earnings Per Share [Abstract]

Income Per Share

Note 12 Income Per Share

The Company calculates income per share under the two-class method, as certain non-vested share awards contain non-forfeitable rights to dividends. As such, these awards are considered securities that participate in the earnings of the Company. Non-vested shares are discussed further in note 9.

The Company had 26,802,964 and 26,282,224 shares of Class A common stock outstanding as of September 30, 2017 and 2016, respectively, exclusive of issued non-vested restricted shares. Certain stock options and non-vested restricted shares are potentially dilutive securities, but are not included in the calculation of diluted income per share because to do so would have been anti-dilutive for the three and nine months ended September 30, 2017 and 2016.

The following table illustrates the computation of basic and diluted income per share for the three and nine months ended September 30, 2017 and 2016:

	For the three months ended				For the nine months ended
	September 30, 2017		September 30, 2016		September 30, 2017		September 30, 2016
Net income	$	7,231	$	8,314	$	24,698	$	13,069
Less: income allocated to participating securities		(14)		(12)		(43)		(37)
Income allocated to common shareholders	$	7,217	$	8,302	$	24,655	$	13,032
Weighted average shares outstanding for basic income per common share		26,947,821		27,654,827		26,902,128		28,991,094
Dilutive effect of equity awards		680,913		173,747		723,304		92,885
Dilutive effect of warrants		—		70,182		11,243		27,343
Weighted average shares outstanding for diluted income per common share		27,628,734		27,898,756		27,636,675		29,111,322
Basic income per share	$	0.27	$	0.30	$	0.92	$	0.45
Diluted income per share	$	0.26	$	0.30	$	0.89	$	0.45

The Company had 1,661,140 and 2,669,859 outstanding stock options to purchase common stock at weighted average exercise prices of $20.62 and $19.82 per share at September 30, 2017 and 2016, respectively, which have time-vesting criteria, and as such, any dilution is derived only for the time frame in which the vesting criteria had been met and where the inclusion of those stock options is dilutive. Additionally, 250,750 warrants were exercised in a non-cash transaction during the first quarter of 2017, representing the remaining outstanding warrants to purchase shares of the Company’s common stock. The warrants had an exercise price of $20.00, which were in-the-money for purposes of the dilution calculations during the nine months ended September 30, 2017, and during the three and nine months ended September 30, 2016. The Company had 372,252 and 912,783 unvested restricted shares and units issued as of September 30, 2017 and 2016, respectively, which have performance, market and/or time-vesting criteria, and as such, any dilution is derived only for the time frame in which the vesting criteria had been met and where the inclusion of those restricted shares and units is dilutive.

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Income Taxes

9 Months Ended

Sep. 30, 2017

Income Tax Disclosure [Abstract]

Income Taxes

Note 13 Income Taxes

The effective income tax rate for the three and nine months ended September 30, 2017 was 19.3% and 9.8%, respectively, compared to 16.9% and 18.0% for the three and nine months ended September 30, 2016, calculated based on a full year forecast method. The tax expense recorded for the three and nine months ended September 30, 2017 was lowered by a $0.1 million and $3.4 million discrete tax benefit from stock compensation activity during the respective periods. Without the discrete benefits, the three and nine months ended September 30, 2017 effective tax rate was 19.9% and 22.3%, respectively, and were comparable to the prior periods. The quarterly tax rate differs from the federal statutory rate primarily due to tax benefits from stock compensation activity, interest income from tax-exempt lending, bank-owned life insurance income, and the relationship of these items to pre-tax income. See management’s discussion and analysis for further information.

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Derivatives

9 Months Ended

Sep. 30, 2017

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Derivatives

Note 14 Derivatives

Risk management objective of using derivatives

The Company is exposed to certain risks arising from both its business operations and economic conditions. The Company has established policies that neither carrying value nor fair value at risk should exceed established guidelines. The Company has designed strategies to confine these risks within the established limits and identify appropriate trade-offs in the financial structure of its balance sheet. These strategies include the use of derivative financial instruments to help achieve the desired balance sheet repricing structure while meeting the desired objectives of its clients. Currently, the Company employs certain interest rate swaps that are designated as fair value hedges as well as economic hedges. The Company manages a matched book with respect to its derivative instruments in order to minimize its net risk exposure resulting from such transactions.

Fair values of derivative instrument on the balance sheet

The table below presents the fair value of the Company’s derivative financial instruments as well as their classification on the consolidated statements of financial condition as of September 30, 2017 and December 31, 2016.

Information about the valuation methods used to measure fair value is provided in note 16.

		Asset derivatives fair value					Liability derivatives fair value
	Balance Sheet	September 30,		December 31,		Balance Sheet	September 30,		December 31,
	location	2017		2016		location	2017		2016
Derivatives designated as hedging instruments:
Interest rate products	Other assets	$	8,165	$	9,528	Other liabilities	$	2,251	$	1,381
Total derivatives designated as hedging instruments		$	8,165	$	9,528		$	2,251	$	1,381
Derivatives not designated as hedging instruments:
Interest rate products	Other assets	$	3,014	$	1,900	Other liabilities	$	3,167	$	1,898
Interest rate lock commitments	Other assets		180		149	Other liabilities		2		6
Forward contracts	Other assets		53		138	Other liabilities		7		20
Total derivatives not designated as hedging instruments		$	3,247	$	2,187		$	3,176	$	2,085

Fair value hedges

Interest rate swaps designated as fair value hedges involve the receipt of variable-rate amounts from a counterparty in exchange for the Company making fixed-rate payments over the life of the agreements without the exchange of the underlying notional amount. As of September 30, 2017, the Company had 56 interest rate swaps with a notional amount of $398.1 million that were designated as fair value hedges of interest rate risk associated with the Company’s fixed-rate loans. As of December 31, 2016, the Company had 42 interest rate swaps with a notional amount of $313.0 million that were designated as fair value hedges. 

For derivatives designated and that qualify as fair value hedges, the gain or loss on the derivative as well as the offsetting loss or gain on the hedged item attributable to the hedged risk are recognized in earnings. The Company includes the gain or loss on the hedged items in the same line item as the offsetting loss or gain on the related derivatives. During the three and nine months ended September 30, 2017, the Company recognized a net loss of $0.4 million and $0.8 million, respectively, in non-interest income related to hedge ineffectiveness. During the three and nine months ended September 30 2016, the Company recognized a net loss of $48 thousand and $1.2 million, respectively, in non-interest income related to hedge ineffectiveness.

Non-designated hedges

Derivatives not designated as hedges are not speculative and consist of interest rate swaps with commercial banking clients that facilitate their respective risk management strategies. Interest rate swaps are simultaneously hedged by offsetting interest rate swaps that the Company executes with a third party, such that the Company minimizes its net risk exposure resulting from such transactions. As the interest rate swaps associated with this program do not meet the strict hedge accounting requirements, changes in the fair value of both the client swaps and the offsetting swaps are recognized directly in earnings. As of September 30, 2017, the Company had 45 matched interest rate swap transactions with an aggregate notional amount of $194.7 million related to this program. As of December 31, 2016, the Company had 36 matched interest rate swap transactions with an aggregate notional amount of $132.6 million related to this program.

As part of its mortgage banking activities, the Company enters into interest rate lock commitments, which are commitments to originate loans where the interest rate on the loan is determined prior to funding and the customers have locked into that interest rate. The Company then locks in the loan and interest rate with an investor and commits to deliver the loan if settlement occurs ("best efforts") or commits to deliver the locked loan in a binding ("mandatory") delivery program with an investor. Fair value changes of certain loans under interest rate lock commitments are hedged with forward sales contracts of MBS. Forward sales contracts of MBS are recorded at fair value with changes in fair value recorded in non-interest income. Interest rate lock commitments and commitments to deliver loans to investors are considered derivatives. The market value of interest rate lock commitments and best efforts contracts are not readily ascertainable with precision because they are not actively traded in stand-alone markets. The Company determines the fair value of interest rate lock commitments and delivery contracts by measuring the fair value of the underlying asset, which is impacted by current interest rates, taking into consideration the probability that the interest rate lock commitments will close or will be funded.

Certain additional risks arise from these forward delivery contracts in that the counterparties to the contracts may not be able to meet the terms of the contracts. The Company does not expect any counterparty to any MBS contract to fail to meet its obligation. Additional risks inherent in mandatory delivery programs include the risk that, if the Company fails to deliver the loans subject to interest rate risk lock commitments, it will still be obligated to “pair off” MBS to the counterparty. Should this be required, the Company could incur significant costs in acquiring replacement loans and such costs could have an adverse effect on the consolidated financial statements.

The fair value of the mortgage banking derivative is recorded as a freestanding asset or liability with the change in value being recognized in current earnings during the period of change.

The Company had 81 interest rate lock commitments with a notional value of $14.0 million and 13 forward contracts with a notional value of $18.1 million at September 30, 2017. At December 31, 2016, the Company had 78 interest rate lock commitments, with a notional value of $13.8 million, and eleven forward contracts with a notional value of $11.8 million.

Effect of derivative instruments on the consolidated statements of operations

The tables below present the effect of the Company’s derivative financial instruments on the consolidated statements of operations for the three and nine months ended September 30, 2017 and 2016:

	Location of gain (loss)	Amount of gain (loss) recognized in income on derivatives
Derivatives in fair value	recognized in income on	For the three months ended September 30,				For the nine months ended September 30,
hedging relationships	derivatives	2017		2016		2017		2016
Interest rate products	Other non-interest income	$	(128)	$	1,674	$	(2,233)	$	(15,740)
Total		$	(128)	$	1,674	$	(2,233)	$	(15,740)

	Location of gain (loss)	Amount of gain (loss) recognized in income on hedged items
	recognized in income on	For the three months ended September 30,				For the nine months ended September 30,
Hedged items	hedged items	2017		2016		2017		2016
Interest rate products	Other non-interest income	$	(283)	$	(1,722)	$	1,437	$	14,576
Total		$	(283)	$	(1,722)	$	1,437	$	14,576

	Location of gain (loss)	Amount of gain (loss) recognized in income on derivatives
Derivatives not designated	recognized in income on	For the three months ended September 30,				For the nine months ended September 30,
as hedging instruments	derivatives	2017		2016		2017		2016
Interest rate products	Other non-interest expense	$	(75)	$	(23)	$	(155)	$	(206)
Interest rate lock commitments	Gain on sale of mortgages, net		35		133		36		465
Forward contracts	Gain on sale of mortgages, net		57		60		(73)		(119)
Total		$	17	$	170	$	(192)	$	140

Credit-risk-related contingent features

The Company has agreements with its derivative counterparties that contain a provision where if the Company defaults on any of its indebtedness for reasons other than an error or omission of an administrative or operational nature, including default where repayment of the indebtedness has not been accelerated by the lender, then the Company could also be declared in default on its derivative obligations.

The Company also has agreements with certain of its derivative counterparties that contain a provision where if the Company fails to maintain its status as a well/adequately capitalized institution, then the counterparty has the right to terminate the derivative positions and the Company would be required to settle its obligations under the agreements.

As of September 30, 2017 and December 31, 2016, the termination value of derivatives in a net liability position related to these agreements was $1.4 million and $1.3 million, respectively, which includes accrued interest but excludes any adjustment for nonperformance risk. The Company has minimum collateral posting thresholds with certain of its derivative counterparties and as of September 30, 2017 and December 31, 2016, the Company had posted $2.3 million and $0.8 million, respectively, in eligible collateral. If the Company had breached any of these provisions at September 30, 2017, it could have been required to settle its obligations under the agreements at the termination value.

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Commitments and Contingencies

9 Months Ended

Sep. 30, 2017

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

Note 15 Commitments and Contingencies

In the normal course of business, the Company enters into various off-balance sheet commitments to help meet the financing needs of clients. These financial instruments include commitments to extend credit, commercial and consumer lines of credit and standby letters of credit. The same credit policies are applied to these commitments as the loans on the consolidated statements of financial condition; however, these commitments involve varying degrees of credit risk in excess of the amount recognized in the consolidated statements of financial condition. At September 30, 2017 and December 31, 2016, the Company had loan commitments totaling $652.7 million and $602.2 million, respectively, and standby letters of credit that totaled $9.5 million and $13.5 million, respectively. The total amounts of unused commitments do not necessarily represent future credit exposure or cash requirements, as commitments often expire without being drawn upon. However, the contractual amount of these commitments, offset by any additional collateral pledged, represents the Company’s potential credit loss exposure.

Total unfunded commitments at September 30, 2017 and December 31, 2016 were as follows:

	September 30, 2017		December 31, 2016
Commitments to fund loans	$	168,632	$	149,391
Unfunded commitments under lines of credit		484,037		452,851
Commercial and standby letters of credit		9,516		13,532
Total unfunded commitments	$	662,185	$	615,774

Commitments to fund loans—Commitments to fund loans are legally binding agreements to lend to clients in accordance with predetermined contractual provisions providing there have been no violations of any conditions specified in the contract. These commitments are generally at variable interest rates and are for specific periods or contain termination clauses and may require the payment of a fee. The total amounts of unused commitments are not necessarily representative of future credit exposure or cash requirements, as commitments often expire without being drawn upon.

Unfunded commitments under lines of credit—In the ordinary course of business, the Company extends revolving credit to its clients. These arrangements may require the payment of a fee.

Commercial and standby letters of credit—As a provider of financial services, the Company routinely issues commercial and standby letters of credit, which may be financial standby letters of credit or performance standby letters of credit. These are various forms of “back-up” commitments to guarantee the performance of a client to a third party. While these arrangements represent a potential cash outlay for the Company, the majority of these letters of credit will expire without being drawn upon. Letters of credit are subject to the same underwriting and credit approval process as traditional loans, and as such, many of them have various forms of collateral securing the commitment, which may include real estate, personal property, receivables or marketable securities.

Contingencies

In the ordinary course of business, the Company and the Bank may be subject to litigation. Based upon the available information and advice from the Company’s legal counsel, management does not believe that any potential, threatened or pending litigation to which it is a party will have a material adverse effect on the Company’s liquidity, financial condition or results of operations.

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Fair Value Measurements

9 Months Ended

Sep. 30, 2017

Fair Value Disclosures [Abstract]

Fair Value Measurements

Note 16 Fair Value Measurements

The Company uses fair value measurements to record fair value adjustments to certain assets and liabilities and to disclose the fair value of its financial instruments. 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. For disclosure purposes, the Company groups its financial and non-financial assets and liabilities into three different levels based on the nature of the instrument and the availability and reliability of the information that is used to determine fair value. The three levels are defined as follows:

· Level 1—Includes assets or liabilities in which the inputs to the valuation methodologies are based on unadjusted quoted prices in active markets for identical assets or liabilities.

· Level 2—Includes assets or liabilities in which the inputs to the valuation methodologies are based on similar assets or liabilities in inactive markets, quoted prices for identical or similar assets or liabilities in inactive markets, and inputs other than quoted prices that are observable, such as interest rates, yield curves, volatilities, prepayment speeds, and other inputs obtained from observable market input.

· Level 3—Includes assets or liabilities in which the inputs to the valuation methodology are based on at least one significant assumption that is not observable in the marketplace. These valuations may rely on management’s judgment and may include internally-developed model-based valuation techniques.

Level 1 inputs are considered to be the most transparent and reliable and level 3 inputs are considered to be the least transparent and reliable. The Company assumes the use of the principal market to conduct a transaction of each particular asset or liability being measured and then considers the assumptions that market participants would use when pricing the asset or liability. Whenever possible, the Company first looks for quoted prices for identical assets or liabilities in active markets (level 1 inputs) to value each asset or liability. However, when inputs from identical assets or liabilities on active markets are not available, the Company utilizes market observable data for similar assets and liabilities. The Company maximizes the use of observable inputs and limits the use of unobservable inputs to occasions when observable inputs are not available. The need to use unobservable inputs generally results from the lack of market liquidity of the actual financial instrument or of the underlying collateral. Although, in some instances, third party price indications may be available, limited trading activity can challenge the observability of these quotations.

Changes in the valuation inputs used for measuring the fair value of financial instruments may occur due to changes in current market conditions or other factors. Such changes may necessitate a transfer of the financial instruments to another level in the hierarchy based on the new inputs used. The Company recognizes these transfers at the end of the reporting period that the transfer occurs. During the nine months ended September 30, 2017 and 2016, there were no transfers of financial instruments between the hierarchy levels.

The following is a description of the valuation methodologies used for assets and liabilities measured at fair value, as well as the general classification of each instrument under the valuation hierarchy:

Fair Value of Financial Instruments Measured on a Recurring Basis

Investment securities available-for-sale—Investment securities available-for-sale are carried at fair value on a recurring basis. To the extent possible, observable quoted prices in an active market are used to determine fair value and, as such, these securities are classified as level 1. At September 30, 2017 and December 31, 2016, the Company did not hold any level 1 securities. When quoted market prices in active markets for identical assets or liabilities are not available, quoted prices of securities with similar characteristics, discounted cash flows or other pricing characteristics are used to estimate fair values and the securities are then classified as level 2.

Interest rate swap derivatives—The Company's derivative instruments are limited to interest rate swaps that may be accounted for as fair value hedges or non-designated hedges. The fair values of the swaps incorporate credit valuation adjustments in order to appropriately reflect nonperformance risk in the fair value measurements. The credit valuation adjustment is the dollar amount of the fair value adjustment related to credit risk and utilizes a probability weighted calculation to quantify the potential loss over the life of the trade. The credit valuation adjustments are calculated by determining the total expected exposure of the derivatives (which incorporates both the current and potential future exposure) and then applying the respective counterparties’ credit spreads to the exposure offset by marketable collateral posted, if any. Certain derivative transactions are executed with counterparties who are large financial institutions ("dealers"). International Swaps and Derivative Association Master Agreements ("ISDA") and Credit Support Annexes ("CSA") are employed for all contracts with dealers. These contracts contain bilateral collateral arrangements. The fair value inputs of these financial instruments are determined using discounted cash flow analysis through the use of third-party models whose significant inputs are readily observable market parameters, primarily yield curves, with appropriate adjustments for liquidity and credit risk, and are classified as level 2.

Mortgage banking derivatives—The Company relies on a third-party pricing service to value its mortgage banking derivative financial assets and liabilities, which the Company classifies as a level 3 valuation. The external valuation model to estimate the fair value of its interest rate lock commitments to originate residential mortgage loans held for sale includes grouping the interest rate lock commitments by interest rate and terms, applying an estimated pull-through rate based on historical experience, and then multiplying by quoted investor prices determined to be reasonably applicable to the loan commitment groups based on interest rate, terms, and rate lock expiration dates of the loan commitment groups. The Company also relies on an external valuation model to estimate the fair value of its forward commitments to sell residential mortgage loans (i.e., an estimate of what the Company would receive or pay to terminate the forward delivery contract based on market prices for similar financial instruments), which includes matching specific terms and maturities of the forward commitments against applicable investor pricing.

The tables below present the financial instruments measured at fair value on a recurring basis as of September 30, 2017 and December 31, 2016 on the consolidated statements of financial condition utilizing the hierarchy structure described above:

	September 30, 2017
	Level 1		Level 2		Level 3		Total
Assets:
Investment securities available-for-sale:
Mortgage-backed securities (“MBS”):
Residential mortgage pass-through securities issued or guaranteed by U.S. Government agencies or sponsored enterprises	$	—	$	181,389	$	—	$	181,389
Other residential MBS issued or guaranteed by U.S. Government agencies or sponsored enterprises		—		628,479		—		628,479
Municipal securities		—		1,499		—		1,499
Interest rate swap derivatives		—		11,179		—		11,179
Mortgage banking derivatives		—		—		233		233
Total assets at fair value	$	—	$	822,546	$	233	$	822,779
Liabilities:
Interest rate swap derivatives	$	—	$	5,418	$	—	$	5,418
Mortgage banking derivatives		—		—		9		9
Total liabilities at fair value	$	—	$	5,418	$	9	$	5,427

	December 31, 2016
	Level 1		Level 2		Level 3		Total
Assets:
Investment securities available-for-sale:
Mortgage-backed securities (“MBS”):
Residential mortgage pass-through securities issued or guaranteed by U.S. Government agencies or sponsored enterprises	$	—	$	227,160	$	—	$	227,160
Other residential MBS issued or guaranteed by U.S. Government agencies or sponsored enterprises		—		652,739		—		652,739
Municipal securities		—		3,648		—		3,648
Interest rate swap derivatives		—		11,428		—		11,428
Mortgage banking derivatives		—		—		287		287
Total assets at fair value	$	—	$	894,975	$	287	$	895,262
Liabilities:
Interest rate swap derivatives	$	—	$	3,279	$	—	$	3,279
Mortgage banking derivatives		—		—		26		26
Total liabilities at fair value	$	—	$	3,279	$	26	$	3,305

The table below details the changes in level 3 financial instruments during the nine months ended September 30, 2017:

		Mortgage banking
		derivatives, net
Balance at December 31, 2016	$	261
Loss included in earnings, net		(37)
Balance at September 30, 2017	$	224

Fair Value of Financial Instruments Measured on a Non-recurring Basis

Certain assets may be recorded at fair value on a non-recurring basis as conditions warrant. These non-recurring fair value measurements typically result from the application of lower of cost or fair value accounting or a write-down occurring during the period.

The Company records collateral dependent loans that are considered to be impaired at their estimated fair value. A loan is considered impaired when it is probable that the Company will be unable to collect all contractual amounts due in accordance with the terms of the loan agreement. Collateral dependent impaired loans are measured based on the fair value of the collateral. The Company relies on third-party appraisals and internal assessments in determining the estimated fair values of these loans. The inputs used to determine the fair values of loans are considered level 3 inputs in the fair value hierarchy. At September 30, 2017, the Company measured seven loans not accounted for under ASC 310-30 at fair value on a non-recurring basis, with a carrying balance of $8.3 million and a specific reserve balance of $1.1 million. At September 30, 2016, the Company measured one loan with a carrying balance of $6.4 million and a specific reserve balance of $1.5 million.

The Company may be required to record fair value adjustments on loans held-for-sale on a non-recurring basis. The non-recurring fair value adjustments could involve lower of cost or fair value accounting and may include write-downs.

OREO is recorded at the lower of the cost basis or the fair value of the collateral less estimated selling costs. The estimated fair values of OREO are updated periodically and further write-downs may be taken to reflect a new basis. The Company recognized $0.8 million and $0.3 million of OREO impairments in its consolidated statements of operations during the nine months ended September 30, 2017 and 2016, respectively. The fair values of OREO are derived from third party price opinions or appraisals that generally use an income approach or a market value approach. If reasonable comparable appraisals are not available, then the Company may use internally developed models to determine fair values. The inputs used to determine the fair values of OREO are considered level 3 inputs in the fair value hierarchy.

The table below provides information regarding the assets recorded at fair value on a non-recurring basis during the nine months ended September 30, 2017 and 2016:

	September 30, 2017
	Total		Losses from fair value changes
Other real estate owned	$	12,330	$	766
Impaired loans		28,459		9,171

	September 30, 2016
	Total		Losses from fair value changes
Other real estate owned	$	21,200	$	262
Impaired loans		35,411		17,546

The Company did not record any liabilities measured at fair value on a non-recurring basis during the nine months ended September 30, 2017.

The following table provides information about the valuation techniques and unobservable inputs used in the valuation of financial instruments classified as level 3 of the fair value hierarchy as of September 30, 2017. The table below excludes non-recurring fair value measurements of collateral value used for impairment measures for OREO, as described above, and other available-for-sale and municipal securities valued at par.

	Fair value at
	September 30, 2017		Valuation technique	Unobservable input	Qualitative measures
Impaired loans		28,459	Appraised value	Appraised values
				Discount rate	0% - 25%

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Fair Value of Financial Instruments

9 Months Ended

Sep. 30, 2017

Fair Value Disclosures [Abstract]

Fair Value of Financial Instruments

Note 17 Fair Value of Financial Instruments

The fair value of a financial instrument is the amount that would be exchanged between willing parties, other than in a forced liquidation. Fair value is determined based upon quoted market prices to the extent possible; however, in many instances, there are no quoted market prices for the Company’s various financial instruments. In cases where quoted market prices are not available, fair values are based on estimates using present value or other valuation techniques that may be significantly impacted by the assumptions used, including the discount rate and estimates of future cash flows. Changes in any of these assumptions could significantly affect the fair value estimates. The fair value of the financial instruments listed below does not reflect a premium or discount that could result from offering all of the Company’s holdings of financial instruments at one time, nor does it reflect the underlying value of the Company, as ASC Topic 825 excludes certain financial instruments and all non-financial instruments from its disclosure requirements. The fair value of financial instruments at September 30, 2017 and December 31, 2016, including methods and assumptions utilized for determining fair value of financial instruments, are set forth below:

	Level in fair value	September 30, 2017				December 31, 2016
	measurement	Carrying		Estimated		Carrying		Estimated
	hierarchy	amount		fair value		amount		fair value
ASSETS
Cash and cash equivalents	Level 1	$	241,160	$	241,160	$	152,736	$	152,736
Mortgage-backed securities—residential mortgage pass-through securities issued or guaranteed by U.S. Government agencies or sponsored enterprises available-for-sale	Level 2		181,389		181,389		227,160		227,160
Mortgage-backed securities—other residential mortgage-backed securities issued or guaranteed by U.S. Government agencies or sponsored enterprises available-for-sale	Level 2		628,479		628,479		652,739		652,739
Municipal securities	Level 2		1,499		1,499		3,648		3,648
Municipal securities	Level 3		265		265		265		265
Other available-for-sale securities	Level 3		419		419		419		419
Mortgage-backed securities—residential mortgage pass-through securities issued or guaranteed by U.S. Government agencies or sponsored enterprises held-to-maturity	Level 2		217,431		218,786		263,411		264,862
Mortgage-backed securities—other residential mortgage-backed securities issued or guaranteed by U.S. Government agencies or sponsored enterprises held-to-maturity	Level 2		57,939		56,822		69,094		67,711
Non-marketable securities	Level 2		15,537		15,537		14,949		14,949
Loans receivable	Level 3		3,120,543		3,117,549		2,860,921		2,879,860
Loans held-for-sale	Level 2		12,212		12,212		24,187		24,187
Accrued interest receivable	Level 2		16,042		16,042		12,562		12,562
Interest rate swap derivatives	Level 2		11,179		11,179		11,428		11,428
Mortgage banking derivatives	Level 3		233		233		287		287
LIABILITIES
Deposit transaction accounts	Level 2		2,813,175		2,813,175		2,696,603		2,696,603
Time deposits	Level 2		1,133,167		1,133,167		1,172,046		1,172,046
Securities sold under agreements to repurchase	Level 2		92,814		92,814		92,011		92,011
Federal Home Loan Bank advances	Level 2		129,115		130,300		38,665		39,324
Accrued interest payable	Level 2		6,676		6,676		4,973		4,973
Interest rate swap derivatives	Level 2		5,418		5,418		3,279		3,279
Mortgage banking derivatives	Level 3		9		9		187		187

Cash and cash equivalents

Cash and cash equivalents have a short-term nature and the estimated fair value is equal to the carrying value.

Investment securities

The estimated fair value of investment securities is based on quoted market prices or bid quotations received from securities dealers. Other investment securities, including securities that are held for regulatory purposes are carried at cost, less any other- than-temporary impairment.

Loans receivable

The estimated fair value of the loan portfolio is estimated using a discounted cash flow analysis using a discount rate based on interest rates offered at the respective measurement dates for loans with similar terms to borrowers of similar credit quality. The allowance for loan losses is considered a reasonable estimate of any required adjustment to fair value to reflect the impact of credit risk. The estimates of fair value do not incorporate the exit-price concept prescribed by ASC Topic 820, Fair Value Measurements and Disclosures.

Loans held-for-sale

Loans held-for-sale are carried at the lower of aggregate cost or estimated fair value. The portfolio consists primarily of fixed rate residential mortgage loans that are sold within 45 days. The estimated fair value is based on quoted market prices for similar loans in the secondary market and is classified as level 2.

Accrued interest receivable

Accrued interest receivable is of a short-term nature and the estimated fair value is equal to the carrying value.

Deposits

The estimated fair value of deposits with no stated maturity, such as non-interest bearing demand deposits, savings, NOW accounts, and money market accounts, is equal to the amount payable on demand. The fair value of interest-bearing time deposits is based on the discounted value of contractual cash flows of such deposits, taking into account the option for early withdrawal. The discount rate is estimated using the rates offered by the Company, at the respective measurement dates, for deposits of similar remaining maturities. The fair value of time deposits has a floor equal to the carrying value as the amount payable on demand would approximate the carrying value.

Derivative assets and liabilities

Fair values for derivative assets and liabilities are fully described in note 16 of the consolidated financial statements.

Securities sold under agreements to repurchase

The vast majority of the Company’s repurchase agreements are overnight transactions that mature the day after the transaction, and as a result of this short-term nature, the estimated fair value is equal to the carrying value.

Accrued interest payable

Accrued interest payable is of a short-term nature and the estimated fair value is equal to the carrying value.

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Investment Securities - (Tables)

9 Months Ended

Sep. 30, 2017

Investments, Debt and Equity Securities [Abstract]

Available-for-sale Securities

At September 30, 2017 and December 31, 2016, the Company held $0.8 billion and $0.9 billion of available-for-sale investment securities, respectively. Available-for-sale securities are summarized as follows as of the dates indicated:

	September 30, 2017
	Amortized		Gross		Gross
	cost		unrealized gains		unrealized losses		Fair value
Mortgage-backed securities (“MBS”):
Residential mortgage pass-through securities issued or guaranteed by U.S. Government agencies or sponsored enterprises	$	178,649	$	3,127	$	(387)	$	181,389
Other residential MBS issued or guaranteed by U.S. Government agencies or sponsored enterprises		639,456		1,321		(12,298)		628,479
Municipal securities		1,646		118		—		1,764
Other securities		419		—		—		419
Total	$	820,170	$	4,566	$	(12,685)	$	812,051

	December 31, 2016
	Amortized		Gross		Gross
	cost		unrealized gains		unrealized losses		Fair value
Mortgage-backed securities (“MBS”):
Residential mortgage pass-through securities issued or guaranteed by U.S. Government agencies or sponsored enterprises	$	223,781	$	3,909	$	(530)	$	227,160
Other residential MBS issued or guaranteed by U.S. Government agencies or sponsored enterprises		666,616		2,124		(16,001)		652,739
Municipal securities		3,921		—		(7)		3,914
Other securities		419		—		—		419
Total	$	894,737	$	6,033	$	(16,538)	$	884,232

Summary of unrealized losses for available-for-sale securities

The table below summarizes the available-for-sale securities with unrealized losses as of the dates shown, along with the length of the impairment period:

	September 30, 2017
	Less than 12 months				12 months or more				Total
	Fair		Unrealized		Fair		Unrealized		Fair		Unrealized
	value		losses		value		losses		value		losses
Mortgage-backed securities (“MBS”):
Residential mortgage pass-through securities issued or guaranteed by U.S. Government agencies or sponsored enterprises	$	54,344	$	(387)	$	—	$	—	$	54,344	$	(387)
Other residential MBS issued or guaranteed by U.S. Government agencies or sponsored enterprises		55,703		(657)		396,893		(11,641)		452,596		(12,298)
Total	$	110,047	$	(1,044)	$	396,893	$	(11,641)	$	506,940	$	(12,685)

	December 31, 2016
	Less than 12 months				12 months or more				Total
	Fair		Unrealized		Fair		Unrealized		Fair		Unrealized
	value		losses		value		losses		value		losses
Mortgage-backed securities (“MBS”):
Residential mortgage pass-through securities issued or guaranteed by U.S. Government agencies or sponsored enterprises	$	100,898	$	(530)	$	—	$	—	$	100,898	$	(530)
Other residential MBS issued or guaranteed by U.S. Government agencies or sponsored enterprises		137,576		(2,976)		385,707		(13,025)		523,283		(16,001)
Municipal securities		3,058		(7)		—		—		3,058		(7)
Total	$	241,532	$	(3,513)	$	385,707	$	(13,025)	$	627,239	$	(16,538)

Held-to-maturity Securities

Held-to-maturity investment securities are summarized as follows as of the dates indicated:

	September 30, 2017
			Gross		Gross
	Amortized		unrealized		unrealized
	cost		gains		losses		Fair value
Mortgage-backed securities (“MBS”):
Residential mortgage pass-through securities issued or guaranteed by U.S. Government agencies or sponsored enterprises	$	217,431	$	1,459	$	(104)	$	218,786
Other residential MBS issued or guaranteed by U.S. Government agencies or sponsored enterprises		57,939		—		(1,117)		56,822
Total investment securities held-to-maturity	$	275,370	$	1,459	$	(1,221)	$	275,608

	December 31, 2016
			Gross		Gross
	Amortized		unrealized		unrealized
	cost		gains		losses		Fair value
Mortgage-backed securities (“MBS”):
Residential mortgage pass-through securities issued or guaranteed by U.S. Government agencies or sponsored enterprises	$	263,411	$	1,685	$	(234)	$	264,862
Other residential MBS issued or guaranteed by U.S. Government agencies or sponsored enterprises		69,094		16		(1,399)		67,711
Total investment securities held-to-maturity	$	332,505	$	1,701	$	(1,633)	$	332,573

Summary of unrealized losses for held-to-maturity securities

The table below summarizes the held-to-maturity securities with unrealized losses as of the dates shown, along with the length of the impairment period:

	September 30, 2017
	Less than 12 months				12 months or more				Total
	Fair		Unrealized		Fair		Unrealized		Fair		Unrealized
	value		losses		value		losses		value		losses
Mortgage-backed securities (“MBS”):
Residential mortgage pass-through securities issued or guaranteed by U.S. Government agencies or sponsored enterprises	$	19,284	$	(104)	$	—	$	—	$	19,284	$	(104)
Other residential MBS issued or guaranteed by U.S. Government agencies or sponsored enterprises		17,983		(202)		31,762		(915)		49,745		(1,117)
Total	$	37,267	$	(306)	$	31,762	$	(915)	$	69,029	$	(1,221)

	December 31, 2016
	Less than 12 months				12 months or more				Total
	Fair		Unrealized		Fair		Unrealized		Fair		Unrealized
	value		losses		value		losses		value		losses
Mortgage-backed securities (“MBS”):
Residential mortgage pass-through securities issued or guaranteed by U.S. Government agencies or sponsored enterprises	$	27,799	$	(234)	$	—	$	—	$	27,799	$	(234)
Other residential MBS issued or guaranteed by U.S. Government agencies or sponsored enterprises		26,992		(357)		32,146		(1,042)		59,138		(1,399)
Total	$	54,791	$	(591)	$	32,146	$	(1,042)	$	86,937	$	(1,633)

XML

Loans - (Tables)

9 Months Ended

Sep. 30, 2017

Receivables [Abstract]

Loan Portfolio Composition Including Carrying Value by Segment of Loans Accounted for under ASC Topic 310-30 and Loans Covered by the FDIC Loss Sharing Agreements

The carrying value of loans is net of discounts on loans excluded from ASC 310-30, and fees and costs of $4.5 million and $6.3 million as of September 30, 2017 and December 31, 2016, respectively. At December 31, 2016, $14.4 million of non 310-30 loans were held-for-sale, most of which were in the residential real estate segment. The sale of these loans was completed in connection with the four banking center divestitures in the second quarter of 2017.

	September 30, 2017
	ASC 310-30 loans		Non 310-30 loans		Total loans		% of total
Commercial	$	31,875	$	1,776,008	$	1,807,883	57.9%
Commercial real estate non-owner occupied		79,798		481,856		561,654	18.0%
Residential real estate		13,420		710,954		724,374	23.2%
Consumer		503		26,129		26,632	0.9%
Total	$	125,596	$	2,994,947	$	3,120,543	100.0%

	December 31, 2016
	ASC 310-30 loans		Non 310-30 loans		Total loans		% of total
Commercial	$	39,280	$	1,521,150	$	1,560,430	54.6%
Commercial real estate non-owner occupied		89,150		437,642		526,792	18.4%
Residential real estate		16,524		728,361		744,885	26.0%
Consumer		898		27,916		28,814	1.0%
Total	$	145,852	$	2,715,069	$	2,860,921	100.0%

Past Due Financing Receivables

Delinquency for loans excluded from ASC 310-30 is shown in the following tables at September 30, 2017 and December 31, 2016, respectively:

	September 30, 2017
					Greater						Total		Loans > 90
	30-59		60-89		than 90						non		days past
	days  past		days past		days past		Total  past				310-30		due and		Non-
	due		due		due		due		Current		loans		still accruing		accrual
Loans excluded from ASC 310-30:
Commercial:
Commercial and industrial	$	715	$	200	$	1,393	$	2,308	$	1,284,047	$	1,286,355	$	150	$	3,783
Owner occupied commercial real estate		1,667		573		49		2,289		273,866		276,155		—		2,829
Agriculture		49		8		689		746		131,401		132,147		—		2,109
Energy		—		—		3,551		3,551		77,800		81,351		—		3,551
Total commercial		2,431		781		5,682		8,894		1,767,114		1,776,008		150		12,272
Commercial real estate non-owner occupied:
Construction		—		—		190		190		101,406		101,596		—		190
Acquisition/development		330		—		—		330		14,115		14,445		—		—
Multifamily		—		—		—		—		40,241		40,241		—		—
Non-owner occupied		653		—		—		653		324,921		325,574		—		607
Total commercial real estate		983		—		190		1,173		480,683		481,856		—		797
Residential real estate:
Senior lien		587		943		1,474		3,004		652,339		655,343		—		5,354
Junior lien		86		—		32		118		55,493		55,611		—		534
Total residential real estate		673		943		1,506		3,122		707,832		710,954		—		5,888
Consumer		186		76		6		268		25,861		26,129		6		200
Total loans excluded from ASC 310-30	$	4,273	$	1,800	$	7,384	$	13,457	$	2,981,490	$	2,994,947	$	156	$	19,157

	December 31, 2016
					Greater						Total		Loans > 90
	30-59		60-89		than 90						non		days past
	days past		days past		days past		Total  past				310-30		due and		Non-
	due		due		due		due		Current		loans		still accruing		accrual
Loans excluded from ASC 310-30:
Commercial:
Commercial and industrial	$	3,134	$	4,009	$	1,078	$	8,221	$	1,066,475	$	1,074,696	$	—	$	8,688
Owner occupied commercial real estate		583		216		56		855		220,689		221,544		—		2,056
Agriculture		501		—		—		501		134,136		134,637		—		1,905
Energy		2		—		6,548		6,550		83,723		90,273		—		12,645
Total commercial		4,220		4,225		7,682		16,127		1,505,023		1,521,150		—		25,294
Commercial real estate non-owner occupied:
Construction		—		—		—		—		90,314		90,314		—		—
Acquisition/development		—		—		—		—		13,306		13,306		—		—
Multifamily		—		—		—		—		24,954		24,954		—		—
Non-owner occupied		—		—		28		28		309,040		309,068		—		66
Total commercial real estate		—		—		28		28		437,614		437,642		—		66
Residential real estate:
Senior lien		888		645		1,458		2,991		672,699		675,690		—		4,522
Junior lien		115		61		22		198		52,473		52,671		—		654
Total residential real estate		1,003		706		1,480		3,189		725,172		728,361		—		5,176
Consumer		83		8		—		91		27,825		27,916		—		181
Total loans excluded from ASC 310-30	$	5,306	$	4,939	$	9,190	$	19,435	$	2,695,634	$	2,715,069	$	—	$	30,717

Credit Exposure for Loans as Determined by Company's Internal Risk Rating System

The Company’s internal risk rating system uses a series of grades which reflect its assessment of the credit quality of loans based on an analysis of the borrower's financial condition, liquidity and ability to meet contractual debt service requirements. Loans that are perceived to have acceptable risk are categorized as “Pass” loans. “Special mention” loans represent loans that have potential credit weaknesses that deserve close attention. Special mention loans include borrowers that have potential weaknesses or unwarranted risks that, unless corrected, may threaten the borrower's ability to meet debt service requirements. However, these borrowers are still believed to have the ability to respond to and resolve the financial issues that threaten their financial situation. Loans classified as “Substandard” have a well-defined credit weakness and are inadequately protected by the current paying capacity of the obligor or of the collateral pledged, if any. Although these loans are identified as potential problem loans, they may never become non-performing. Substandard loans have a distinct possibility of loss if the deficiencies are not corrected. “Doubtful” loans are loans that management believe the collection of payments in accordance with the terms of the loan agreement are highly questionable and improbable. Doubtful loans are deemed impaired and put on non-accrual status.

Credit exposure for all loans as determined by the Company’s internal risk rating system was as follows as of September 30, 2017 and December 31, 2016, respectively:

	September 30, 2017
			Special
	Pass		mention		Substandard		Doubtful		Total
Loans excluded from ASC 310-30:
Commercial:
Commercial and industrial	$	1,259,680	$	10,968	$	15,092	$	615	$	1,286,355
Owner occupied commercial real estate		252,816		17,154		5,925		260		276,155
Agriculture		108,832		21,206		2,076		33		132,147
Energy		75,356		2,444		3,551		—		81,351
Total commercial		1,696,684		51,772		26,644		908		1,776,008
Commercial real estate non-owner occupied:
Construction		101,406		—		190		—		101,596
Acquisition/development		14,445		—		—		—		14,445
Multifamily		38,088		—		2,153		—		40,241
Non-owner occupied		321,160		2,926		1,488		—		325,574
Total commercial real estate		475,099		2,926		3,831		—		481,856
Residential real estate:
Senior lien		649,317		248		5,615		163		655,343
Junior lien		54,705		—		906		—		55,611
Total residential real estate		704,022		248		6,521		163		710,954
Consumer		25,925		1		203		—		26,129
Total loans excluded from ASC 310-30	$	2,901,730	$	54,947	$	37,199	$	1,071	$	2,994,947
Loans accounted for under ASC 310-30:
Commercial	$	24,706	$	1,125	$	6,044	$	—	$	31,875
Commercial real estate non-owner occupied		51,780		1,074		26,944		—		79,798
Residential real estate		10,618		1,094		1,708		—		13,420
Consumer		343		10		150		—		503
Total loans accounted for under ASC 310-30	$	87,447	$	3,303	$	34,846	$	—	$	125,596
Total loans	$	2,989,177	$	58,250	$	72,045	$	1,071	$	3,120,543

	December 31, 2016
			Special
	Pass		mention		Substandard		Doubtful		Total
Loans excluded from ASC 310-30:
Commercial:
Commercial and industrial	$	1,041,326	$	7,243	$	25,636	$	491	$	1,074,696
Owner occupied commercial real estate		202,036		9,371		10,137		—		221,544
Agriculture		123,809		8,922		1,906		—		134,637
Energy		77,619		—		7,811		4,843		90,273
Total commercial		1,444,790		25,536		45,490		5,334		1,521,150
Commercial real estate non-owner occupied:
Construction		90,099		—		215		—		90,314
Acquisition/development		10,758		2,548		—		—		13,306
Multifamily		22,495		238		2,221		—		24,954
Non-owner occupied		300,922		5,895		2,251		—		309,068
Total commercial real estate		424,274		8,681		4,687		—		437,642
Residential real estate:
Senior lien		669,148		1,215		5,316		11		675,690
Junior lien		51,250		178		1,243		—		52,671
Total residential real estate		720,398		1,393		6,559		11		728,361
Consumer		27,669		59		188		—		27,916
Total loans excluded from ASC 310-30	$	2,617,131	$	35,669	$	56,924	$	5,345	$	2,715,069
Loans accounted for under ASC 310-30:
Commercial	$	27,436	$	610	$	11,234	$	—	$	39,280
Commercial real estate non-owner occupied		38,895		967		45,520		3,768		89,150
Residential real estate		12,477		1,327		2,720		—		16,524
Consumer		721		17		160		—		898
Total loans accounted for under ASC 310-30	$	79,529	$	2,921	$	59,634	$	3,768	$	145,852
Total loans	$	2,696,660	$	38,590	$	116,558	$	9,113	$	2,860,921

Schedule Of Impaired Financing Receivable With And Without Related Allowance

Additional information regarding impaired loans at September 30, 2017 and December 31, 2016 is set forth in the table below:

	September 30, 2017						December 31, 2016
					Allowance						Allowance
	Unpaid				for loan		Unpaid				for loan
	principal		Recorded		losses		principal		Recorded		losses
	balance		investment		allocated		balance		investment		allocated
With no related allowance recorded:
Commercial:
Commercial and industrial	$	5,762	$	4,409	$	—	$	8,671	$	7,495	$	—
Owner occupied commercial real estate		2,198		2,059		—		3,350		3,197		—
Agriculture		1,534		1,294		—		2,044		1,987		—
Energy		9,367		5,995		—		17,142		6,105		—
Total commercial		18,861		13,757		—		31,207		18,784		—
Commercial real estate non-owner occupied:
Construction		215		190		—		—		—		—
Acquisition/development		—		—		—		—		—		—
Multifamily		30		30		—		33		33		—
Non-owner occupied		917		864		—		394		343		—
Total commercial real estate		1,162		1,084		—		427		376		—
Residential real estate:
Senior lien		597		572		—		1,551		1,426		—
Junior lien		—		—		—		54		51		—
Total residential real estate		597		572		—		1,605		1,477		—
Consumer		—		—		—		4		4		—
Total impaired loans with no related allowance recorded	$	20,620	$	15,413	$	—	$	33,243	$	20,641	$	—
With a related allowance recorded:
Commercial:
Commercial and industrial	$	4,200	$	1,612	$	617	$	3,495	$	3,464	$	492
Owner occupied commercial real estate		2,631		2,450		264		957		642		2
Agriculture		932		895		33		—		—		—
Energy		—		—		—		11,216		6,548		1,866
Total commercial		7,763		4,957		914		15,668		10,654		2,360
Commercial real estate non-owner occupied:
Construction		—		—		—		—		—		—
Acquisition/development		—		—		—		—		—		—
Multifamily		—		—		—		—		—		—
Non-owner occupied		214		207		1		261		255		1
Total commercial real estate		214		207		1		261		255		1
Residential real estate:
Senior lien		6,993		6,282		186		5,646		5,016		31
Junior lien		1,641		1,398		10		1,781		1,532		14
Total residential real estate		8,634		7,680		196		7,427		6,548		45
Consumer		207		202		1		188		184		2
Total impaired loans with a related allowance recorded	$	16,818	$	13,046	$	1,112	$	23,544	$	17,641	$	2,408
Total impaired loans	$	37,438	$	28,459	$	1,112	$	56,787	$	38,282	$	2,408

Schedule of Impaired Financing Receivable, Average Recorded Investment and Interest Income Recognized

The table below shows additional information regarding the average recorded investment and interest income recognized on impaired loans for the periods presented:

	For the three months ended
	September 30, 2017				September 30, 2016
	Average recorded investment		Interest income recognized		Average recorded investment		Interest income recognized
With no related allowance recorded:
Commercial:
Commercial and industrial	$	4,272	$	40	$	9,589	$	39
Owner occupied commercial real estate		2,069		19		1,513		22
Agriculture		1,349		—		1,845		—
Energy		7,960		116		17,142		—
Total commercial		15,650		175		30,089		61
Commercial real estate non-owner occupied:
Construction		—		—		—		—
Acquisition/development		—		—		—		—
Multifamily		—		—		—		—
Non-owner occupied		871		5		363		6
Total commercial real estate		871		5		363		6
Residential real estate:
Senior lien		574		—		1,555		5
Junior lien		—		—		53		—
Total residential real estate		574		—		1,608		5
Consumer		—		—		5		—
Total impaired loans with no related allowance recorded	$	17,095	$	180	$	32,065	$	72
With a related allowance recorded:
Commercial:
Commercial and industrial	$	3,692	$	—	$	35	$	—
Owner occupied commercial real estate		2,456		5		730		8
Agriculture		896		1		176		1
Energy		—		—		6,436		—
Total commercial		7,044		6		7,377		9
Commercial real estate non-owner occupied:
Construction		190		—		—		—
Acquisition/development		—		—		—		—
Multifamily		30		—		34		—
Non-owner occupied		209		2		265		3
Total commercial real estate		429		2		299		3
Residential real estate:
Senior lien		6,334		20		4,508		25
Junior lien		1,409		12		1,696		16
Total residential real estate		7,743		32		6,204		41
Consumer		206		—		209		—
Total impaired loans with a related allowance recorded	$	15,422	$	40	$	14,089	$	53
Total impaired loans	$	32,517	$	220	$	46,154	$	125

	For the nine months ended
	September 30, 2017				September 30, 2016
	Average recorded investment		Interest income recognized		Average recorded investment		Interest income recognized
With no related allowance recorded:
Commercial:
Commercial and industrial	$	5,802	$	113	$	10,511	$	177
Owner occupied commercial real estate		2,116		60		1,539		70
Agriculture		1,470		—		1,845		—
Energy		9,035		116		20,327		—
Total Commercial		18,423		289		34,222		247
Commercial real estate non-owner occupied:
Construction		—		—		—		—
Acquisition/development		—		—		—		—
Multifamily		—		—		—		—
Non-owner occupied		886		17		376		16
Total commercial real estate		886		17		376		16
Residential real estate:
Senior lien		585		—		1,578		16
Junior lien		—		—		54		1
Total residential real estate		585		—		1,632		17
Consumer		—		—		5		—
Total impaired loans with no related allowance recorded	$	19,894	$	306	$	36,235	$	280
With a related allowance recorded:
Commercial:
Commercial and industrial	$	4,363	$	—	$	44	$	—
Owner occupied commercial real estate		2,479		15		761		15
Agriculture		907		4		178		4
Energy		—		—		6,377		—
Total Commercial		7,749		19		7,360		19
Commercial real estate non-owner occupied:
Construction		190		—		—		—
Acquisition/development		—		—		—		—
Multifamily		31		1		35		1
Non-owner occupied		216		7		272		11
Total commercial real estate		437		8		307		12
Residential real estate:
Senior lien		6,494		60		4,620		70
Junior lien		1,444		36		1,733		47
Total residential real estate		7,938		96		6,353		117
Consumer		218		—		212		—
Total impaired loans with a related allowance recorded	$	16,342	$	123	$	14,232	$	148
Total impaired loans	$	36,236	$	429	$	50,467	$	428

Additional Information Related to Accruing TDR's

The table below provides additional information related to accruing TDRs at September 30, 2017 and December 31, 2016:

	September 30, 2017
	Recorded		Average year-to-date		Unpaid		Unfunded commitments
	investment		recorded investments		principal balance		to fund TDRs
Commercial	$	5,680	$	6,026	$	6,003	$	1,813
Commercial real estate non-owner occupied		470		499		522		—
Residential real estate		1,468		1,510		1,480		2
Consumer		2		4		2		—
Total	$	7,620	$	8,039	$	8,007	$	1,815

	December 31, 2016
	Recorded		Average year-to-date		Unpaid		Unfunded commitments
	investment		recorded investments		principal balance		to fund TDRs
Commercial	$	3,302	$	3,440	$	3,464	$	100
Commercial real estate non-owner occupied		538		572		590		—
Residential real estate		1,920		1,996		1,969		2
Consumer		7		9		7		—
Total	$	5,767	$	6,017	$	6,030	$	102

Summary of Company's Carrying Value of Non-Accrual TDR's

The following table summarizes the Company’s carrying value of non-accrual TDRs as of September 30, 2017 and December 31, 2016:

	September 30, 2017		December 31, 2016
Commercial	$	8,143	$	15,265
Commercial real estate non-owner occupied		—		—
Residential real estate		1,284		1,301
Consumer		173		142
Total non-accruing TDRs	$	9,600	$	16,708

Re-Measurement of Loans Accounted for Under ASC Topic 310-30 Resulting in Changes in Carrying Amount of Accretable Yield

The re-measurement of loans accounted for under ASC 310-30 resulted in the following changes in the carrying amount of accretable yield during the nine months ended September 30, 2017 and 2016:

	September 30, 2017		September 30, 2016
Accretable yield beginning balance	$	60,476	$	84,194
Reclassification from non-accretable difference		9,697		10,611
Reclassification to non-accretable difference		(907)		(4,479)
Accretion		(17,718)		(26,653)
Accretable yield ending balance	$	51,548	$	63,673

Composition of Net Book Value for Loans Accounted for under ASC Topic 310-30

Below is the composition of the net book value for loans accounted for under ASC 310-30 at September 30, 2017 and December 31, 2016:

	September 30, 2017		December 31, 2016
Contractual cash flows	$	499,652	$	537,611
Non-accretable difference		(322,508)		(331,283)
Accretable yield		(51,548)		(60,476)
Loans accounted for under ASC 310-30	$	125,596	$	145,852

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Allowance for Loan Losses - (Tables)

9 Months Ended

Sep. 30, 2017

Receivables [Abstract]

Summary of Company's Allowance for Loan Losses ("ALL") and Recorded Investment in Loans

The tables below detail the Company’s allowance for loan losses (“ALL”) and recorded investment in loans as of and for the three and nine months ended September 30, 2017 and 2016:

	Three months ended  September 30, 2017
			Non-owner
			occupied
			commercial		Residential
	Commercial		real estate		real estate		Consumer		Total
Beginning balance	$	24,656	$	5,934	$	4,067	$	302	$	34,959
Non 310-30 beginning balance		24,656		5,800		4,067		294		34,817
Charge-offs		(8,618)		—		(16)		(209)		(8,843)
Recoveries		11		—		14		26		51
Provision		4,063		(280)		77		162		4,022
Non 310-30 ending balance		20,112		5,520		4,142		273		30,047
ASC 310-30 beginning balance		—		134		—		8		142
Charge-offs		—		—		—		—		—
Recoveries		—		—		—		—		—
(Recoupment) provision		—		(134)		—		(8)		(142)
ASC 310-30 ending balance		—		—		—		—		—
Ending balance	$	20,112	$	5,520	$	4,142	$	273	$	30,047

	Three months ended  September 30, 2016
			Non-owner
			occupied
			commercial		Residential
	Commercial		real estate		real estate		Consumer		Total
Beginning balance	$	29,982	$	5,368	$	4,504	$	252	$	40,106
Non 310-30 beginning balance		29,980		5,157		4,504		234		39,875
Charge-offs		(17,204)		—		(166)		(170)		(17,540)
Recoveries		19		8		84		57		168
Provision		5,112		178		(177)		162		5,275
Non 310-30 ending balance		17,907		5,343		4,245		283		27,778
ASC 310-30 beginning balance		2		211		—		18		231
Charge-offs		—		—		—		(6)		(6)
Recoveries		—		—		—		—		—
Provision (recoupment)		27		3		—		(12)		18
ASC 310-30 ending balance		29		214		—		—		243
Ending balance	$	17,936	$	5,557	$	4,245	$	283	$	28,021

	Nine months ended September 30, 2017
			Non-owner
			occupied
			commercial		Residential
	Commercial		real estate		real estate		Consumer		Total
Beginning balance	$	18,821	$	5,642	$	4,387	$	324	$	29,174
Non 310-30 beginning balance		18,821		5,422		4,387		319		28,949
Charge-offs		(8,638)		—		(26)		(510)		(9,174)
Recoveries		52		20		127		148		347
Provision		9,877		78		(346)		316		9,925
Non 310-30 ending balance		20,112		5,520		4,142		273		30,047
ASC 310-30 beginning balance		—		220		—		5		225
Charge-offs		—		—		—		—		—
Recoveries		—		—		—		—		—
Recoupment		—		(220)		—		(5)		(225)
ASC 310-30 ending balance		—		—		—		—		—
Ending balance	$	20,112	$	5,520	$	4,142	$	273	$	30,047
Ending allowance balance attributable to:
Non 310-30 loans individually evaluated for impairment	$	914	$	2	$	195	$	1	$	1,112
Non 310-30 loans collectively evaluated for impairment		19,198		5,518		3,947		272		28,935
ASC 310-30 loans		—		—		—		—		—
Total ending allowance balance	$	20,112	$	5,520	$	4,142	$	273	$	30,047
Loans:
Non 310-30 individually evaluated for impairment	$	18,714	$	1,291	$	8,252	$	202	$	28,459
Non 310-30 collectively evaluated for impairment		1,757,294		480,565		702,702		25,927		2,966,488
ASC 310-30 loans		31,875		79,798		13,420		503		125,596
Total loans	$	1,807,883	$	561,654	$	724,374	$	26,632	$	3,120,543

	Nine months ended September 30, 2016
			Non-owner
			occupied
			commercial		Residential
	Commercial		real estate		real estate		Consumer		Total
Beginning balance	$	17,261	$	4,166	$	5,281	$	411	$	27,119
Non 310-30 beginning balance		16,473		3,939		5,245		385		26,042
Charge-offs		(20,684)		(276)		(363)		(558)		(21,881)
Recoveries		43		73		106		242		464
Provision		22,075		1,607		(743)		214		23,153
Non 310-30 ending balance		17,907		5,343		4,245		283		27,778
ASC 310-30 beginning balance		788		227		36		26		1,077
Charge-offs		—		(41)		—		(6)		(47)
Recoveries		—		—		—		—		—
(Recoupment) provision		(759)		28		(36)		(20)		(787)
ASC 310-30 ending balance		29		214		—		—		243
Ending balance	$	17,936	$	5,557	$	4,245	$	283	$	28,021
Ending allowance balance attributable to:
Non 310-30 loans individually evaluated for impairment	$	1,462	$	1	$	34	$	2	$	1,499
Non 310-30 loans collectively evaluated for impairment		16,445		5,342		4,211		281		26,279
ASC 310-30 loans		29		214		—		—		243
Total ending allowance balance	$	17,936	$	5,557	$	4,245	$	283	$	28,021
Loans:
Non 310-30 individually evaluated for impairment	$	26,743	$	654	$	6,995	$	210	$	34,602
Non 310-30 collectively evaluated for impairment		1,450,524		452,594		699,796		27,376		2,630,290
ASC 310-30 loans		43,339		95,487		17,654		1,183		157,663
Total loans	$	1,520,606	$	548,735	$	724,445	$	28,769	$	2,822,555

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Other Real Estate Owned - (Tables)

9 Months Ended

Sep. 30, 2017

FDIC Loss-Sharing Related

Summary of Activity in OREO Balances

The table below details the OREO activity during the nine months ended September 30, 2017 and 2016:

	For the nine months ended September 30,
	2017		2016
Beginning balance	$	15,662	$	20,814
Transfers from loan portfolio, at fair value		760		4,755
Impairments		(766)		(262)
Sales, net		(3,326)		(4,107)
Ending balance	$	12,330	$	21,200

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Regulatory Capital - (Tables)

9 Months Ended

Sep. 30, 2017

FDIC Loss-Sharing Related

Capital Ratio Requirements under Prompt Corrective Action or Other Regulatory Requirements

The following table sets forth the capital ratios of the Company and the Bank at September 30, 2017 and December 31, 2016.

	September 30, 2017
				Required to be			Required to be
				well capitalized under			considered
				prompt corrective			adequately
	Actual			action provisions			capitalized
	Ratio	Amount		Ratio	Amount		Ratio	Amount
Tier 1 leverage ratio:
Consolidated	10.4%	$	482,758	N/A		N/A	4.0%	$	185,124
NBH Bank	8.5%		390,995	5.0%	$	230,646	4.0%		184,517
Common equity tier 1 risk-based capital:
Consolidated	13.5%	$	482,758	N/A		N/A	4.5%	$	208,265
NBH Bank	11.0%		390,995	6.5%	$	299,840	4.5%		207,582
Tier 1 risk-based capital ratio:
Consolidated	13.5%	$	482,758	N/A		N/A	6.0%	$	214,123
NBH Bank	11.0%		390,995	8.0%	$	284,224	6.0%		213,168
Total risk-based capital ratio:
Consolidated	14.4%	$	513,130	N/A		N/A	8.0%	$	285,498
NBH Bank	11.9%		421,368	10.0%	$	355,280	8.0%		284,224

	December 31, 2016
				Required to be			Required to be
				well capitalized under			considered
				prompt corrective			adequately
	Actual			action provisions			capitalized
	Ratio	Amount		Ratio	Amount		Ratio	Amount
Tier 1 leverage ratio:
Consolidated	10.4%	$	470,259	N/A		N/A	4.0%	$	181,019
NBH Bank	8.6%		389,189	4.5%	$	202,903	4.0%		180,358
Common equity tier 1 risk-based capital:
Consolidated	14.2%	$	470,259	N/A		N/A	4.5%	$	203,647
NBH Bank	11.8%		389,189	6.5%	$	293,082	4.5%		202,903
Tier 1 risk-based capital ratio:
Consolidated	14.2%	$	470,259	N/A		N/A	6.0%	$	199,467
NBH Bank	11.8%		389,189	8.0%	$	264,596	6.0%		198,447
Total risk-based capital ratio:
Consolidated	15.0%	$	499,759	N/A		N/A	8.0%	$	265,955
NBH Bank	12.7%		418,689	10.0%	$	330,745	8.0%		264,596

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Stock-based Compensation and Benefits - (Tables)

9 Months Ended

Sep. 30, 2017

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Summary of outstanding stock options

The following table summarizes stock option activity for the nine months ended September 30, 2017:

				Weighted
				average
		Weighted		remaining
		average		contractual	Aggregate
		exercise		term in	intrinsic
	Options	price		years	value
Outstanding at December 31, 2016	2,185,922	$	19.81	4.85	$	7,753
Granted	100,401		33.98
Exercised	(598,728)		19.90
Forfeited	(26,455)		22.11
Outstanding at September 30, 2017	1,661,140	$	20.62	4.25	$	25,042
Options exercisable at September 30, 2017	1,425,900	$	19.82	3.52	$	22,829
Options vested and expected to vest	1,644,451	$	20.55	4.21	$	24,905

Summary of Restricted Stock Activity

The following table summarizes restricted stock and performance stock activity during the nine months ended September 30, 2017:

		Weighted				Weighted
	Restricted	average grant-		Performance		average grant-
	shares	date fair value		stock units		date fair value
Unvested at December 31, 2016	499,271	$	15.82	85,295	$	18.22
Granted	66,471		33.43	49,758		33.22
Vested	(300,448)		15.31	—		—
Forfeited	(18,817)		17.53	(9,278)		21.46
Unvested at September 30, 2017	246,477	$	20.41	125,775	$	23.91

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Income Per Share - (Tables)

9 Months Ended

Sep. 30, 2017

Earnings Per Share [Abstract]

Schedule of Computation of Basic and Diluted Income (Loss) Per Share

The following table illustrates the computation of basic and diluted income per share for the three and nine months ended September 30, 2017 and 2016:

	For the three months ended				For the nine months ended
	September 30, 2017		September 30, 2016		September 30, 2017		September 30, 2016
Net income	$	7,231	$	8,314	$	24,698	$	13,069
Less: income allocated to participating securities		(14)		(12)		(43)		(37)
Income allocated to common shareholders	$	7,217	$	8,302	$	24,655	$	13,032
Weighted average shares outstanding for basic income per common share		26,947,821		27,654,827		26,902,128		28,991,094
Dilutive effect of equity awards		680,913		173,747		723,304		92,885
Dilutive effect of warrants		—		70,182		11,243		27,343
Weighted average shares outstanding for diluted income per common share		27,628,734		27,898,756		27,636,675		29,111,322
Basic income per share	$	0.27	$	0.30	$	0.92	$	0.45
Diluted income per share	$	0.26	$	0.30	$	0.89	$	0.45

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Derivatives - (Tables)

9 Months Ended

Sep. 30, 2017

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of Derivative Instruments in Statement of Financial Position, Fair Value

The table below presents the fair value of the Company’s derivative financial instruments as well as their classification on the consolidated statements of financial condition as of September 30, 2017 and December 31, 2016.

Information about the valuation methods used to measure fair value is provided in note 16.

		Asset derivatives fair value					Liability derivatives fair value
	Balance Sheet	September 30,		December 31,		Balance Sheet	September 30,		December 31,
	location	2017		2016		location	2017		2016
Derivatives designated as hedging instruments:
Interest rate products	Other assets	$	8,165	$	9,528	Other liabilities	$	2,251	$	1,381
Total derivatives designated as hedging instruments		$	8,165	$	9,528		$	2,251	$	1,381
Derivatives not designated as hedging instruments:
Interest rate products	Other assets	$	3,014	$	1,900	Other liabilities	$	3,167	$	1,898
Interest rate lock commitments	Other assets		180		149	Other liabilities		2		6
Forward contracts	Other assets		53		138	Other liabilities		7		20
Total derivatives not designated as hedging instruments		$	3,247	$	2,187		$	3,176	$	2,085

Derivative Instruments, Gain (Loss)

The tables below present the effect of the Company’s derivative financial instruments on the consolidated statements of operations for the three and nine months ended September 30, 2017 and 2016:

	Location of gain (loss)	Amount of gain (loss) recognized in income on derivatives
Derivatives in fair value	recognized in income on	For the three months ended September 30,				For the nine months ended September 30,
hedging relationships	derivatives	2017		2016		2017		2016
Interest rate products	Other non-interest income	$	(128)	$	1,674	$	(2,233)	$	(15,740)
Total		$	(128)	$	1,674	$	(2,233)	$	(15,740)

	Location of gain (loss)	Amount of gain (loss) recognized in income on hedged items
	recognized in income on	For the three months ended September 30,				For the nine months ended September 30,
Hedged items	hedged items	2017		2016		2017		2016
Interest rate products	Other non-interest income	$	(283)	$	(1,722)	$	1,437	$	14,576
Total		$	(283)	$	(1,722)	$	1,437	$	14,576

	Location of gain (loss)	Amount of gain (loss) recognized in income on derivatives
Derivatives not designated	recognized in income on	For the three months ended September 30,				For the nine months ended September 30,
as hedging instruments	derivatives	2017		2016		2017		2016
Interest rate products	Other non-interest expense	$	(75)	$	(23)	$	(155)	$	(206)
Interest rate lock commitments	Gain on sale of mortgages, net		35		133		36		465
Forward contracts	Gain on sale of mortgages, net		57		60		(73)		(119)
Total		$	17	$	170	$	(192)	$	140

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Commitments and Contingencies (Tables)

9 Months Ended

Sep. 30, 2017

Commitments and Contingencies Disclosure [Abstract]

Schedule of Total Unfunded Commitments

Total unfunded commitments at September 30, 2017 and December 31, 2016 were as follows:

	September 30, 2017		December 31, 2016
Commitments to fund loans	$	168,632	$	149,391
Unfunded commitments under lines of credit		484,037		452,851
Commercial and standby letters of credit		9,516		13,532
Total unfunded commitments	$	662,185	$	615,774

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Fair Value Measurements - (Tables)

9 Months Ended

Sep. 30, 2017

Fair Value Disclosures [Abstract]

Tables of Financial Instruments Measured At Fair Value on Recurring Basis

The tables below present the financial instruments measured at fair value on a recurring basis as of September 30, 2017 and December 31, 2016 on the consolidated statements of financial condition utilizing the hierarchy structure described above:

	September 30, 2017
	Level 1		Level 2		Level 3		Total
Assets:
Investment securities available-for-sale:
Mortgage-backed securities (“MBS”):
Residential mortgage pass-through securities issued or guaranteed by U.S. Government agencies or sponsored enterprises	$	—	$	181,389	$	—	$	181,389
Other residential MBS issued or guaranteed by U.S. Government agencies or sponsored enterprises		—		628,479		—		628,479
Municipal securities		—		1,499		—		1,499
Interest rate swap derivatives		—		11,179		—		11,179
Mortgage banking derivatives		—		—		233		233
Total assets at fair value	$	—	$	822,546	$	233	$	822,779
Liabilities:
Interest rate swap derivatives	$	—	$	5,418	$	—	$	5,418
Mortgage banking derivatives		—		—		9		9
Total liabilities at fair value	$	—	$	5,418	$	9	$	5,427

	December 31, 2016
	Level 1		Level 2		Level 3		Total
Assets:
Investment securities available-for-sale:
Mortgage-backed securities (“MBS”):
Residential mortgage pass-through securities issued or guaranteed by U.S. Government agencies or sponsored enterprises	$	—	$	227,160	$	—	$	227,160
Other residential MBS issued or guaranteed by U.S. Government agencies or sponsored enterprises		—		652,739		—		652,739
Municipal securities		—		3,648		—		3,648
Interest rate swap derivatives		—		11,428		—		11,428
Mortgage banking derivatives		—		—		287		287
Total assets at fair value	$	—	$	894,975	$	287	$	895,262
Liabilities:
Interest rate swap derivatives	$	—	$	3,279	$	—	$	3,279
Mortgage banking derivatives		—		—		26		26
Total liabilities at fair value	$	—	$	3,279	$	26	$	3,305

Table of Changes in Level 3 Financial Instruments

The table below details the changes in level 3 financial instruments during the nine months ended September 30, 2017:

		Mortgage banking
		derivatives, net
Balance at December 31, 2016	$	261
Loss included in earnings, net		(37)
Balance at September 30, 2017	$	224

Table of assets recorded at fair value on a non-recurring basis

The table below provides information regarding the assets recorded at fair value on a non-recurring basis during the nine months ended September 30, 2017 and 2016:

	September 30, 2017
	Total		Losses from fair value changes
Other real estate owned	$	12,330	$	766
Impaired loans		28,459		9,171

	September 30, 2016
	Total		Losses from fair value changes
Other real estate owned	$	21,200	$	262
Impaired loans		35,411		17,546

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Fair Value of Financial Instruments - (Tables)

9 Months Ended

Sep. 30, 2017

Fair Value Disclosures [Abstract]

Fair Value of Financial Instruments

The fair value of financial instruments at September 30, 2017 and December 31, 2016, including methods and assumptions utilized for determining fair value of financial instruments, are set forth below:

	Level in fair value	September 30, 2017				December 31, 2016
	measurement	Carrying		Estimated		Carrying		Estimated
	hierarchy	amount		fair value		amount		fair value
ASSETS
Cash and cash equivalents	Level 1	$	241,160	$	241,160	$	152,736	$	152,736
Mortgage-backed securities—residential mortgage pass-through securities issued or guaranteed by U.S. Government agencies or sponsored enterprises available-for-sale	Level 2		181,389		181,389		227,160		227,160
Mortgage-backed securities—other residential mortgage-backed securities issued or guaranteed by U.S. Government agencies or sponsored enterprises available-for-sale	Level 2		628,479		628,479		652,739		652,739
Municipal securities	Level 2		1,499		1,499		3,648		3,648
Municipal securities	Level 3		265		265		265		265
Other available-for-sale securities	Level 3		419		419		419		419
Mortgage-backed securities—residential mortgage pass-through securities issued or guaranteed by U.S. Government agencies or sponsored enterprises held-to-maturity	Level 2		217,431		218,786		263,411		264,862
Mortgage-backed securities—other residential mortgage-backed securities issued or guaranteed by U.S. Government agencies or sponsored enterprises held-to-maturity	Level 2		57,939		56,822		69,094		67,711
Non-marketable securities	Level 2		15,537		15,537		14,949		14,949
Loans receivable	Level 3		3,120,543		3,117,549		2,860,921		2,879,860
Loans held-for-sale	Level 2		12,212		12,212		24,187		24,187
Accrued interest receivable	Level 2		16,042		16,042		12,562		12,562
Interest rate swap derivatives	Level 2		11,179		11,179		11,428		11,428
Mortgage banking derivatives	Level 3		233		233		287		287
LIABILITIES
Deposit transaction accounts	Level 2		2,813,175		2,813,175		2,696,603		2,696,603
Time deposits	Level 2		1,133,167		1,133,167		1,172,046		1,172,046
Securities sold under agreements to repurchase	Level 2		92,814		92,814		92,011		92,011
Federal Home Loan Bank advances	Level 2		129,115		130,300		38,665		39,324
Accrued interest payable	Level 2		6,676		6,676		4,973		4,973
Interest rate swap derivatives	Level 2		5,418		5,418		3,279		3,279
Mortgage banking derivatives	Level 3		9		9		187		187

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Basis of Presentation - (Details)	9 Months Ended
	Sep. 30, 2017 item
Accounting Policies [Abstract]
Number of full service banking offices	85

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Investment Securities - (Narrative) (Details) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2017 USD ($) security	Dec. 31, 2016 USD ($) security
Investment securities total	$ 1,100,000	$ 1,200,000
Amortized cost	820,170	894,737
Available-for-sale securities	812,051	884,232
Held-to-maturity securities	$ 275,370	$ 332,505
Mortgage-backed securities as percentage of available-for-sale investment portfolio	100.00%	100.00%
Number of securities | security	66	61
Fair value of available-for-sale securities in an unrealized loss position	$ 506,940	$ 627,239
Fair value of available-for-sale security with OTTI	900
Other than Temporary Impairment Losses, Investments	200
Fair value of available-for-sale investment securities pledged as collateral	$ 301,000	$ 373,700
Estimated weighted average life of the available-for-sale mortgage-backed securities portfolio	3 years 1 month 6 days	3 years 4 months 24 days
Life of the available-for-sale mortgage-backed securities portfolio	2 years 10 months 24 days	3 years 2 months 12 days
Other securities having no contractual maturity date	$ 400
Number of held-to-maturity securities in unrealized loss positions | security	13	15
Fair value of held-to-maturity securities in an unrealized loss position	$ 69,029	$ 86,937
Held-to-maturity investment securities pledged as collateral	$ 142,100	$ 119,200
Estimated weighted average expected life of the held-to-maturity mortgage-backed securities portfolio	3 years 1 month 6 days	3 years 6 months
Life of the held-to-maturity investment portfolio	2 years 10 months 24 days	3 years 2 months 12 days
Municiapl securities maturing witin one year Member
Amortized cost	$ 800
Available-for-sale securities	900
Municipal securities maturing within one to five years [Member]
Amortized cost	300
Available-for-sale securities	300
Municipal securities due within five to ten years [Member]
Amortized cost	600
Available-for-sale securities	600
Other Securities [Member]
Amortized cost	419	$ 419
Available-for-sale securities	$ 419	$ 419

XML

Investment Securities - (Summary of Available-for-Sale Investment Securities) (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	$ 820,170	$ 894,737
Gross unrealized gains	4,566	6,033
Gross unrealized losses	(12,685)	(16,538)
Investment securities available-for-sale (at fair value)	812,051	884,232
Residential Mortgage Pass-Through Securities Issued or Guaranteed by U.S. Government Agencies or Sponsored Enterprises [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	178,649	223,781
Gross unrealized gains	3,127	3,909
Gross unrealized losses	(387)	(530)
Investment securities available-for-sale (at fair value)	181,389	227,160
Other Residential MBS Issued or Guaranteed by U.S. Government Agencies or Sponsored Enterprises [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	639,456	666,616
Gross unrealized gains	1,321	2,124
Gross unrealized losses	(12,298)	(16,001)
Investment securities available-for-sale (at fair value)	628,479	652,739
Municipal [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	1,646	3,921
Gross unrealized gains	118
Gross unrealized losses		(7)
Investment securities available-for-sale (at fair value)	1,764	3,914
Other Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	419	419
Investment securities available-for-sale (at fair value)	$ 419	$ 419

XML

Investment Securities - (Summary of Unrealized Losses) (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months Fair Value	$ 110,047	$ 241,532
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(1,044)	(3,513)
12 months or more, Fair Value	396,893	385,707
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(11,641)	(13,025)
Total, Fair Value	506,940	627,239
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	(12,685)	(16,538)
Residential Mortgage Pass-Through Securities Issued or Guaranteed by U.S. Government Agencies or Sponsored Enterprises [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months Fair Value	54,344	100,898
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(387)	(530)
Total, Fair Value	54,344	100,898
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	(387)	(530)
Other Residential MBS Issued or Guaranteed by U.S. Government Agencies or Sponsored Enterprises [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months Fair Value	55,703	137,576
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(657)	(2,976)
12 months or more, Fair Value	396,893	385,707
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(11,641)	(13,025)
Total, Fair Value	452,596	523,283
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss	$ (12,298)	(16,001)
Municipal [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months Fair Value		3,058
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss		(7)
Total, Fair Value		3,058
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss		$ (7)

XML

Investment Securities - (Summary of Held-to-maturity Investment Securities) (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Schedule of Held-to-maturity Securities [Line Items]
Held-to-maturity Securities	$ 275,370	$ 332,505
Held-to-maturity Securities, Accumulated Unrecognized Holding Gain	1,459	1,701
Held-to-maturity Securities, Accumulated Unrecognized Holding Loss	(1,221)	(1,633)
Fair value	275,608	332,573
Residential Mortgage Pass-Through Securities Issued or Guaranteed by U.S. Government Agencies or Sponsored Enterprises [Member]
Schedule of Held-to-maturity Securities [Line Items]
Held-to-maturity Securities	217,431	263,411
Held-to-maturity Securities, Accumulated Unrecognized Holding Gain	1,459	1,685
Held-to-maturity Securities, Accumulated Unrecognized Holding Loss	(104)	(234)
Fair value	218,786	264,862
Other Residential MBS Issued or Guaranteed by U.S. Government Agencies or Sponsored Enterprises [Member]
Schedule of Held-to-maturity Securities [Line Items]
Held-to-maturity Securities	57,939	69,094
Held-to-maturity Securities, Accumulated Unrecognized Holding Gain		16
Held-to-maturity Securities, Accumulated Unrecognized Holding Loss	(1,117)	(1,399)
Fair value	$ 56,822	$ 67,711

XML

Investment Securities - (Summary of Held-to-Maturity Securities, Unrealized Losses) (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Schedule of Held-to-maturity Securities [Line Items]
Fair Value, Less than 12 months	$ 37,267	$ 54,791
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(306)	(591)
Fair Value, 12 months or more	31,762	32,146
Held-to-maturity Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(915)	(1,042)
Total Fair Value	69,029	86,937
Held-to-maturity Securities, Continuous Unrealized Loss Position, Accumulated Loss	(1,221)	(1,633)
Residential Mortgage Pass-Through Securities Issued or Guaranteed by U.S. Government Agencies or Sponsored Enterprises [Member]
Schedule of Held-to-maturity Securities [Line Items]
Fair Value, Less than 12 months	19,284	27,799
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(104)	(234)
Total Fair Value	19,284	27,799
Held-to-maturity Securities, Continuous Unrealized Loss Position, Accumulated Loss	(104)	(234)
Other Residential MBS Issued or Guaranteed by U.S. Government Agencies or Sponsored Enterprises [Member]
Schedule of Held-to-maturity Securities [Line Items]
Fair Value, Less than 12 months	17,983	26,992
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(202)	(357)
Fair Value, 12 months or more	31,762	32,146
Held-to-maturity Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(915)	(1,042)
Total Fair Value	49,745	59,138
Held-to-maturity Securities, Continuous Unrealized Loss Position, Accumulated Loss	$ (1,117)	$ (1,399)

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Loans - Narrative Section (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Debt Instrument [Line Items]
Fees and cost related to loans	$ 4,500		$ 4,500		$ 6,300
Loans Held for Sale Included in Loans Receivable					14,400
Carrying amount of loan investments	3,120,543	$ 2,822,555	3,120,543	$ 2,822,555	2,860,921
Commercial Loan [Member]
Debt Instrument [Line Items]
Carrying amount of loan investments	1,807,883		1,807,883		1,560,430
Non Accrual [Member]
Debt Instrument [Line Items]
Recorded investment, non-accrual status	19,200		19,200
Increase (decrease) in non-accrual loans			$ 11,600
Percentage increase (decrease) in past due loans			37.60%
Non ASC 310-30 [Member]
Debt Instrument [Line Items]
Carrying amount of loan investments	2,994,947		$ 2,994,947		2,715,069
Allowance for Loan and Lease Losses, Write-offs	8,843	17,540	9,174	21,881
Non ASC 310-30 [Member] | Commercial Loan [Member]
Debt Instrument [Line Items]
Carrying amount of loan investments	1,776,008		1,776,008		1,521,150
ASC 310-30 [Member]
Debt Instrument [Line Items]
Carrying amount of loan investments	125,596		125,596		145,852
Allowance for Loan and Lease Losses, Write-offs		$ 6		$ 47
ASC 310-30 [Member] | Commercial Loan [Member]
Debt Instrument [Line Items]
Carrying amount of loan investments	31,875		31,875		39,280
Total Loans [Member]
Debt Instrument [Line Items]
Carrying amount of loan investments	3,120,543		3,120,543		2,860,921
Total Loans [Member] | Non ASC 310-30 [Member]
Debt Instrument [Line Items]
Carrying amount of loan investments	2,994,947		2,994,947		2,715,069
Recorded investment, non-accrual status	19,157		19,157		30,717
Total past due loans	13,457		13,457		19,435
Total Loans [Member] | Non ASC 310-30 [Member] | Commercial and Industrial [Member]
Debt Instrument [Line Items]
Carrying amount of loan investments	1,286,355		1,286,355		1,074,696
Recorded investment, non-accrual status	3,783		3,783		8,688
Total past due loans	2,308		2,308		8,221
Total Loans [Member] | Non ASC 310-30 [Member] | Energy Loans [Member]
Debt Instrument [Line Items]
Carrying amount of loan investments	81,351		81,351		90,273
Recorded investment, non-accrual status	3,551		3,551		12,645
Total past due loans	3,551		3,551		6,550
Total Loans [Member] | Non ASC 310-30 [Member] | Commercial Loan [Member]
Debt Instrument [Line Items]
Carrying amount of loan investments	1,776,008		1,776,008		1,521,150
Recorded investment, non-accrual status	12,272		12,272		25,294
Total past due loans	8,894		8,894		16,127
Total Loans [Member] | Non ASC 310-30 [Member] | Owner-Occupied [Member]
Debt Instrument [Line Items]
Carrying amount of loan investments	276,155		276,155		221,544
Recorded investment, non-accrual status	2,829		2,829		2,056
Total past due loans	2,289		2,289		855
Total Loans [Member] | Non ASC 310-30 [Member] | Non Owner-Occupied [Member]
Debt Instrument [Line Items]
Carrying amount of loan investments	325,574		325,574		309,068
Recorded investment, non-accrual status	607		607		66
Total past due loans	653		653		28
Total Loans [Member] | ASC 310-30 [Member]
Debt Instrument [Line Items]
Carrying amount of loan investments	125,596		125,596		145,852
Total Loans [Member] | ASC 310-30 [Member] | Commercial Loan [Member]
Debt Instrument [Line Items]
Carrying amount of loan investments	31,875		31,875		39,280
Total Loans [Member] | Substandard [Member]
Debt Instrument [Line Items]
Carrying amount of loan investments	72,045		72,045		116,558
Total Loans [Member] | Substandard [Member] | Non ASC 310-30 [Member]
Debt Instrument [Line Items]
Carrying amount of loan investments	37,199		37,199		56,924
Total Loans [Member] | Substandard [Member] | Non ASC 310-30 [Member] | Commercial and Industrial [Member]
Debt Instrument [Line Items]
Carrying amount of loan investments	15,092		15,092		25,636
Total Loans [Member] | Substandard [Member] | Non ASC 310-30 [Member] | Energy Loans [Member]
Debt Instrument [Line Items]
Carrying amount of loan investments	3,551		3,551		7,811
Total Loans [Member] | Substandard [Member] | Non ASC 310-30 [Member] | Commercial Loan [Member]
Debt Instrument [Line Items]
Carrying amount of loan investments	26,644		26,644		45,490
Total Loans [Member] | Substandard [Member] | Non ASC 310-30 [Member] | Owner-Occupied [Member]
Debt Instrument [Line Items]
Carrying amount of loan investments	5,925		5,925		10,137
Total Loans [Member] | Substandard [Member] | Non ASC 310-30 [Member] | Non Owner-Occupied [Member]
Debt Instrument [Line Items]
Carrying amount of loan investments	1,488		1,488		2,251
Total Loans [Member] | Substandard [Member] | ASC 310-30 [Member]
Debt Instrument [Line Items]
Carrying amount of loan investments	34,846		34,846		59,634
Total Loans [Member] | Substandard [Member] | ASC 310-30 [Member] | Commercial Loan [Member]
Debt Instrument [Line Items]
Carrying amount of loan investments	6,044		6,044		11,234
Total Loans [Member] | Special Mention [Member]
Debt Instrument [Line Items]
Carrying amount of loan investments	58,250		58,250		38,590
Total Loans [Member] | Special Mention [Member] | Non ASC 310-30 [Member]
Debt Instrument [Line Items]
Carrying amount of loan investments	54,947		54,947		35,669
Total Loans [Member] | Special Mention [Member] | Non ASC 310-30 [Member] | Commercial and Industrial [Member]
Debt Instrument [Line Items]
Carrying amount of loan investments	10,968		10,968		7,243
Total Loans [Member] | Special Mention [Member] | Non ASC 310-30 [Member] | Energy Loans [Member]
Debt Instrument [Line Items]
Carrying amount of loan investments	2,444		2,444
Total Loans [Member] | Special Mention [Member] | Non ASC 310-30 [Member] | Commercial Loan [Member]
Debt Instrument [Line Items]
Carrying amount of loan investments	51,772		51,772		25,536
Total Loans [Member] | Special Mention [Member] | Non ASC 310-30 [Member] | Owner-Occupied [Member]
Debt Instrument [Line Items]
Carrying amount of loan investments	17,154		17,154		9,371
Total Loans [Member] | Special Mention [Member] | Non ASC 310-30 [Member] | Non Owner-Occupied [Member]
Debt Instrument [Line Items]
Carrying amount of loan investments	2,926		2,926		5,895
Total Loans [Member] | Special Mention [Member] | ASC 310-30 [Member]
Debt Instrument [Line Items]
Carrying amount of loan investments	3,303		3,303		2,921
Total Loans [Member] | Special Mention [Member] | ASC 310-30 [Member] | Commercial Loan [Member]
Debt Instrument [Line Items]
Carrying amount of loan investments	1,125		1,125		610
Total Loans [Member] | Doubtful [Member]
Debt Instrument [Line Items]
Carrying amount of loan investments	1,071		1,071		9,113
Total Loans [Member] | Doubtful [Member] | Non ASC 310-30 [Member]
Debt Instrument [Line Items]
Carrying amount of loan investments	1,071		1,071		5,345
Total Loans [Member] | Doubtful [Member] | Non ASC 310-30 [Member] | Commercial and Industrial [Member]
Debt Instrument [Line Items]
Carrying amount of loan investments	615		615		491
Total Loans [Member] | Doubtful [Member] | Non ASC 310-30 [Member] | Energy Loans [Member]
Debt Instrument [Line Items]
Carrying amount of loan investments					4,843
Total Loans [Member] | Doubtful [Member] | Non ASC 310-30 [Member] | Commercial Loan [Member]
Debt Instrument [Line Items]
Carrying amount of loan investments	908		908		5,334
Total Loans [Member] | Doubtful [Member] | Non ASC 310-30 [Member] | Owner-Occupied [Member]
Debt Instrument [Line Items]
Carrying amount of loan investments	$ 260		$ 260
Total Loans [Member] | Doubtful [Member] | ASC 310-30 [Member]
Debt Instrument [Line Items]
Carrying amount of loan investments					$ 3,768

XML

Loans - Impaired Loans Narrative (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016	Sep. 30, 2016
Debt Instrument [Line Items]
Carrying amount of loan investments	$ 3,120,543	$ 2,860,921	$ 2,822,555
Impaired loans	12,300
Recorded investment of impaired loans	28,459	38,282
Collective related allowance for loan losses for impaired loans	1,112	2,408
Non Accrual [Member]
Debt Instrument [Line Items]
Investment in impaired loans not covered by loan loss, non-accrual status	19,200
Fair Value Of Collateral Pledged [Member]
Debt Instrument [Line Items]
Impaired loans	17,400
Discounted Cash Flows [Member]
Debt Instrument [Line Items]
Impaired loans	2,500
General Reserve [Member]
Debt Instrument [Line Items]
Impaired loans	8,600
Individual loan amount of impaired loans	250
Commercial Loan [Member]
Debt Instrument [Line Items]
Carrying amount of loan investments	1,807,883	$ 1,560,430
Commercial and Industrial [Member]
Debt Instrument [Line Items]
Impaired loans	3,000
Energy Loans [Member]
Debt Instrument [Line Items]
Impaired loans	6,000
Agricultural Sector [Member]
Debt Instrument [Line Items]
Impaired loans	1,300
Owner-Occupied [Member]
Debt Instrument [Line Items]
Impaired loans	$ 2,000

XML

Loans - (Loan Portfolio Composition Including Carrying Value by Segment of Loans Accounted for under ASC Topic 310-30) (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016	Sep. 30, 2016
Loans [Line Items]
Total Loans	$ 3,120,543	$ 2,860,921	$ 2,822,555
% of Total	100.00%	100.00%
Commercial Loan [Member]
Loans [Line Items]
Total Loans	$ 1,807,883	$ 1,560,430
% of Total	57.90%	54.60%
Commercial Real Estate [Member]
Loans [Line Items]
Total Loans	$ 561,654	$ 526,792
% of Total	18.00%	18.40%
Residential Real Estate Segment [Member]
Loans [Line Items]
Total Loans	$ 724,374	$ 744,885
% of Total	23.20%	26.00%
Consumer [Member]
Loans [Line Items]
Total Loans	$ 26,632	$ 28,814
% of Total	0.90%	1.00%
ASC 310-30 [Member]
Loans [Line Items]
Total Loans	$ 125,596	$ 145,852
ASC 310-30 [Member] | Commercial Loan [Member]
Loans [Line Items]
Total Loans	31,875	39,280
ASC 310-30 [Member] | Commercial Real Estate [Member]
Loans [Line Items]
Total Loans	79,798	89,150
ASC 310-30 [Member] | Residential Real Estate Segment [Member]
Loans [Line Items]
Total Loans	13,420	16,524
ASC 310-30 [Member] | Consumer [Member]
Loans [Line Items]
Total Loans	503	898
Non ASC 310-30 [Member]
Loans [Line Items]
Total Loans	2,994,947	2,715,069
Non ASC 310-30 [Member] | Commercial Loan [Member]
Loans [Line Items]
Total Loans	1,776,008	1,521,150
Non ASC 310-30 [Member] | Commercial Real Estate [Member]
Loans [Line Items]
Total Loans	481,856	437,642
Non ASC 310-30 [Member] | Residential Real Estate Segment [Member]
Loans [Line Items]
Total Loans	710,954	728,361
Non ASC 310-30 [Member] | Consumer [Member]
Loans [Line Items]
Total Loans	$ 26,129	$ 27,916

XML

Loans - (Loan Delinquency) (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2017	Dec. 31, 2016	Sep. 30, 2016
Loans [Line Items]
Total loans	$ 3,120,543	$ 3,120,543	$ 2,860,921	$ 2,822,555
Commercial and Industrial [Member]
Loans [Line Items]
Loan Charged Off		2,500
Commercial Loan [Member]
Loans [Line Items]
Total loans	1,807,883	1,807,883	1,560,430
Energy Loans [Member]
Loans [Line Items]
Loan Charged Off		6,100
Non Accrual Loan Placed on Accrual	2,400
Commercial Real Estate [Member]
Loans [Line Items]
Total loans	561,654	561,654	526,792
Residential Real Estate Segment [Member]
Loans [Line Items]
Total loans	724,374	724,374	744,885
Consumer [Member]
Loans [Line Items]
Total loans	26,632	26,632	28,814
Non ASC 310-30 [Member]
Loans [Line Items]
Total loans	2,994,947	2,994,947	2,715,069
Non ASC 310-30 [Member] | Commercial Loan [Member]
Loans [Line Items]
Total loans	1,776,008	1,776,008	1,521,150
Non ASC 310-30 [Member] | Commercial Real Estate [Member]
Loans [Line Items]
Total loans	481,856	481,856	437,642
Non ASC 310-30 [Member] | Residential Real Estate Segment [Member]
Loans [Line Items]
Total loans	710,954	710,954	728,361
Non ASC 310-30 [Member] | Consumer [Member]
Loans [Line Items]
Total loans	26,129	26,129	27,916
ASC 310-30 [Member]
Loans [Line Items]
Total loans	125,596	125,596	145,852
ASC 310-30 [Member] | Commercial Loan [Member]
Loans [Line Items]
Total loans	31,875	31,875	39,280
ASC 310-30 [Member] | Commercial Real Estate [Member]
Loans [Line Items]
Total loans	79,798	79,798	89,150
ASC 310-30 [Member] | Residential Real Estate Segment [Member]
Loans [Line Items]
Total loans	13,420	13,420	16,524
ASC 310-30 [Member] | Consumer [Member]
Loans [Line Items]
Total loans	503	503	898
Total Loans [Member]
Loans [Line Items]
Total loans	3,120,543	3,120,543	2,860,921
Total Loans [Member] | Non ASC 310-30 [Member]
Loans [Line Items]
Total past due loans	13,457	13,457	19,435
Current	2,981,490	2,981,490	2,695,634
Total loans	2,994,947	2,994,947	2,715,069
Loans 90 days past due and still accruing	156	156
Non- accrual	19,157	19,157	30,717
Total Loans [Member] | Non ASC 310-30 [Member] | Commercial Construction [Member]
Loans [Line Items]
Total past due loans	190	190
Current	101,406	101,406	90,314
Total loans	101,596	101,596	90,314
Non- accrual	190	190
Total Loans [Member] | Non ASC 310-30 [Member] | Commercial Acquisition/Development [Member]
Loans [Line Items]
Total past due loans	330	330
Current	14,115	14,115	13,306
Total loans	14,445	14,445	13,306
Total Loans [Member] | Non ASC 310-30 [Member] | Multifamily [Member]
Loans [Line Items]
Current	40,241	40,241	24,954
Total loans	40,241	40,241	24,954
Total Loans [Member] | Non ASC 310-30 [Member] | Commercial and Industrial [Member]
Loans [Line Items]
Total past due loans	2,308	2,308	8,221
Current	1,284,047	1,284,047	1,066,475
Total loans	1,286,355	1,286,355	1,074,696
Loans 90 days past due and still accruing	150	150
Non- accrual	3,783	3,783	8,688
Total Loans [Member] | Non ASC 310-30 [Member] | Owner-Occupied [Member]
Loans [Line Items]
Total past due loans	2,289	2,289	855
Current	273,866	273,866	220,689
Total loans	276,155	276,155	221,544
Non- accrual	2,829	2,829	2,056
Total Loans [Member] | Non ASC 310-30 [Member] | Non Owner-Occupied [Member]
Loans [Line Items]
Total past due loans	653	653	28
Current	324,921	324,921	309,040
Total loans	325,574	325,574	309,068
Non- accrual	607	607	66
Total Loans [Member] | Non ASC 310-30 [Member] | Total Commercial Real Estate [Member]
Loans [Line Items]
Total past due loans	1,173	1,173	28
Current	480,683	480,683	437,614
Total loans	481,856	481,856	437,642
Non- accrual	797	797	66
Total Loans [Member] | Non ASC 310-30 [Member] | Senior lien
Loans [Line Items]
Total past due loans	3,004	3,004	2,991
Current	652,339	652,339	672,699
Total loans	655,343	655,343	675,690
Non- accrual	5,354	5,354	4,522
Total Loans [Member] | Non ASC 310-30 [Member] | Junior lien
Loans [Line Items]
Total past due loans	118	118	198
Current	55,493	55,493	52,473
Total loans	55,611	55,611	52,671
Non- accrual	534	534	654
Total Loans [Member] | Non ASC 310-30 [Member] | Commercial Loan [Member]
Loans [Line Items]
Total past due loans	8,894	8,894	16,127
Current	1,767,114	1,767,114	1,505,023
Total loans	1,776,008	1,776,008	1,521,150
Loans 90 days past due and still accruing	150	150
Non- accrual	12,272	12,272	25,294
Total Loans [Member] | Non ASC 310-30 [Member] | Agriculture [Member]
Loans [Line Items]
Total past due loans	746	746	501
Current	131,401	131,401	134,136
Total loans	132,147	132,147	134,637
Non- accrual	2,109	2,109	1,905
Total Loans [Member] | Non ASC 310-30 [Member] | Energy Loans [Member]
Loans [Line Items]
Total past due loans	3,551	3,551	6,550
Current	77,800	77,800	83,723
Total loans	81,351	81,351	90,273
Non- accrual	3,551	3,551	12,645
Total Loans [Member] | Non ASC 310-30 [Member] | Residential Real Estate Segment [Member]
Loans [Line Items]
Total past due loans	3,122	3,122	3,189
Current	707,832	707,832	725,172
Total loans	710,954	710,954	728,361
Non- accrual	5,888	5,888	5,176
Total Loans [Member] | Non ASC 310-30 [Member] | Consumer [Member]
Loans [Line Items]
Total past due loans	268	268	91
Current	25,861	25,861	27,825
Total loans	26,129	26,129	27,916
Loans 90 days past due and still accruing	6	6
Non- accrual	200	200	181
Total Loans [Member] | ASC 310-30 [Member]
Loans [Line Items]
Total loans	125,596	125,596	145,852
Total Loans [Member] | ASC 310-30 [Member] | Commercial Loan [Member]
Loans [Line Items]
Total loans	31,875	31,875	39,280
Total Loans [Member] | ASC 310-30 [Member] | Commercial Real Estate [Member]
Loans [Line Items]
Total loans	79,798	79,798	89,150
Total Loans [Member] | ASC 310-30 [Member] | Residential Real Estate Segment [Member]
Loans [Line Items]
Total loans	13,420	13,420	16,524
Total Loans [Member] | ASC 310-30 [Member] | Consumer [Member]
Loans [Line Items]
Total loans	503	503	898
Total Loans [Member] | 30-59 Days Past Due | Non ASC 310-30 [Member]
Loans [Line Items]
Total past due loans	4,273	4,273	5,306
Total Loans [Member] | 30-59 Days Past Due | Non ASC 310-30 [Member] | Commercial Acquisition/Development [Member]
Loans [Line Items]
Total past due loans	330	330
Total Loans [Member] | 30-59 Days Past Due | Non ASC 310-30 [Member] | Commercial and Industrial [Member]
Loans [Line Items]
Total past due loans	715	715	3,134
Total Loans [Member] | 30-59 Days Past Due | Non ASC 310-30 [Member] | Owner-Occupied [Member]
Loans [Line Items]
Total past due loans	1,667	1,667	583
Total Loans [Member] | 30-59 Days Past Due | Non ASC 310-30 [Member] | Non Owner-Occupied [Member]
Loans [Line Items]
Total past due loans	653	653
Total Loans [Member] | 30-59 Days Past Due | Non ASC 310-30 [Member] | Total Commercial Real Estate [Member]
Loans [Line Items]
Total past due loans	983	983
Total Loans [Member] | 30-59 Days Past Due | Non ASC 310-30 [Member] | Senior lien
Loans [Line Items]
Total past due loans	587	587	888
Total Loans [Member] | 30-59 Days Past Due | Non ASC 310-30 [Member] | Junior lien
Loans [Line Items]
Total past due loans	86	86	115
Total Loans [Member] | 30-59 Days Past Due | Non ASC 310-30 [Member] | Commercial Loan [Member]
Loans [Line Items]
Total past due loans	2,431	2,431	4,220
Total Loans [Member] | 30-59 Days Past Due | Non ASC 310-30 [Member] | Agriculture [Member]
Loans [Line Items]
Total past due loans	49	49	501
Total Loans [Member] | 30-59 Days Past Due | Non ASC 310-30 [Member] | Energy Loans [Member]
Loans [Line Items]
Total past due loans			2
Total Loans [Member] | 30-59 Days Past Due | Non ASC 310-30 [Member] | Residential Real Estate Segment [Member]
Loans [Line Items]
Total past due loans	673	673	1,003
Total Loans [Member] | 30-59 Days Past Due | Non ASC 310-30 [Member] | Consumer [Member]
Loans [Line Items]
Total past due loans	186	186	83
Total Loans [Member] | 60-89 Days Past Due | Non ASC 310-30 [Member]
Loans [Line Items]
Total past due loans	1,800	1,800	4,939
Total Loans [Member] | 60-89 Days Past Due | Non ASC 310-30 [Member] | Commercial and Industrial [Member]
Loans [Line Items]
Total past due loans	200	200	4,009
Total Loans [Member] | 60-89 Days Past Due | Non ASC 310-30 [Member] | Owner-Occupied [Member]
Loans [Line Items]
Total past due loans	573	573	216
Total Loans [Member] | 60-89 Days Past Due | Non ASC 310-30 [Member] | Senior lien
Loans [Line Items]
Total past due loans	943	943	645
Total Loans [Member] | 60-89 Days Past Due | Non ASC 310-30 [Member] | Junior lien
Loans [Line Items]
Total past due loans			61
Total Loans [Member] | 60-89 Days Past Due | Non ASC 310-30 [Member] | Commercial Loan [Member]
Loans [Line Items]
Total past due loans	781	781	4,225
Total Loans [Member] | 60-89 Days Past Due | Non ASC 310-30 [Member] | Agriculture [Member]
Loans [Line Items]
Total past due loans	8	8
Total Loans [Member] | 60-89 Days Past Due | Non ASC 310-30 [Member] | Residential Real Estate Segment [Member]
Loans [Line Items]
Total past due loans	943	943	706
Total Loans [Member] | 60-89 Days Past Due | Non ASC 310-30 [Member] | Consumer [Member]
Loans [Line Items]
Total past due loans	76	76	8
Total Loans [Member] | Greater than 90 Days Past Due | Non ASC 310-30 [Member]
Loans [Line Items]
Total past due loans	7,384	7,384	9,190
Total Loans [Member] | Greater than 90 Days Past Due | Non ASC 310-30 [Member] | Commercial Construction [Member]
Loans [Line Items]
Total past due loans	190	190
Total Loans [Member] | Greater than 90 Days Past Due | Non ASC 310-30 [Member] | Commercial and Industrial [Member]
Loans [Line Items]
Total past due loans	1,393	1,393	1,078
Total Loans [Member] | Greater than 90 Days Past Due | Non ASC 310-30 [Member] | Owner-Occupied [Member]
Loans [Line Items]
Total past due loans	49	49	56
Total Loans [Member] | Greater than 90 Days Past Due | Non ASC 310-30 [Member] | Non Owner-Occupied [Member]
Loans [Line Items]
Total past due loans			28
Total Loans [Member] | Greater than 90 Days Past Due | Non ASC 310-30 [Member] | Total Commercial Real Estate [Member]
Loans [Line Items]
Total past due loans	190	190	28
Total Loans [Member] | Greater than 90 Days Past Due | Non ASC 310-30 [Member] | Senior lien
Loans [Line Items]
Total past due loans	1,474	1,474	1,458
Total Loans [Member] | Greater than 90 Days Past Due | Non ASC 310-30 [Member] | Junior lien
Loans [Line Items]
Total past due loans	32	32	22
Total Loans [Member] | Greater than 90 Days Past Due | Non ASC 310-30 [Member] | Commercial Loan [Member]
Loans [Line Items]
Total past due loans	5,682	5,682	7,682
Total Loans [Member] | Greater than 90 Days Past Due | Non ASC 310-30 [Member] | Agriculture [Member]
Loans [Line Items]
Total past due loans	689	689
Total Loans [Member] | Greater than 90 Days Past Due | Non ASC 310-30 [Member] | Energy Loans [Member]
Loans [Line Items]
Total past due loans	3,551	3,551	6,548
Total Loans [Member] | Greater than 90 Days Past Due | Non ASC 310-30 [Member] | Residential Real Estate Segment [Member]
Loans [Line Items]
Total past due loans	1,506	1,506	$ 1,480
Total Loans [Member] | Greater than 90 Days Past Due | Non ASC 310-30 [Member] | Consumer [Member]
Loans [Line Items]
Total past due loans	6	6
Non Accrual [Member]
Loans [Line Items]
Non- accrual	$ 19,200	$ 19,200

XML

Loans - (Credit Exposure for Loans as Determined by Company's Internal Risk Rating System) (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2017	Dec. 31, 2016	Sep. 30, 2016
Loans [Line Items]
Total Loans	$ 3,120,543	$ 2,860,921	$ 2,822,555
Commercial Loan [Member]
Loans [Line Items]
Total Loans	1,807,883	1,560,430
Residential Real Estate Segment [Member]
Loans [Line Items]
Total Loans	724,374	744,885
Consumer [Member]
Loans [Line Items]
Total Loans	26,632	28,814
Commercial Real Estate [Member]
Loans [Line Items]
Total Loans	561,654	526,792
Non ASC 310-30 [Member]
Loans [Line Items]
Total Loans	2,994,947	2,715,069
Non ASC 310-30 [Member] | Commercial Loan [Member]
Loans [Line Items]
Total Loans	1,776,008	1,521,150
Non ASC 310-30 [Member] | Residential Real Estate Segment [Member]
Loans [Line Items]
Total Loans	710,954	728,361
Non ASC 310-30 [Member] | Consumer [Member]
Loans [Line Items]
Total Loans	26,129	27,916
Non ASC 310-30 [Member] | Commercial Real Estate [Member]
Loans [Line Items]
Total Loans	481,856	437,642
ASC 310-30 [Member]
Loans [Line Items]
Total Loans	125,596	145,852
ASC 310-30 [Member] | Commercial Loan [Member]
Loans [Line Items]
Total Loans	31,875	39,280
ASC 310-30 [Member] | Residential Real Estate Segment [Member]
Loans [Line Items]
Total Loans	13,420	16,524
ASC 310-30 [Member] | Consumer [Member]
Loans [Line Items]
Total Loans	503	898
ASC 310-30 [Member] | Commercial Real Estate [Member]
Loans [Line Items]
Total Loans	79,798	89,150
Special Mention [Member] | Non ASC 310-30 [Member]
Loans [Line Items]
Change in Risk Rating	19,300
Substandard [Member] | Non ASC 310-30 [Member]
Loans [Line Items]
Change in Risk Rating	(19,700)
Doubtful [Member] | Non ASC 310-30 [Member]
Loans [Line Items]
Change in Risk Rating	(4,300)
Total Loans [Member]
Loans [Line Items]
Total Loans	3,120,543	2,860,921
Total Loans [Member] | Non ASC 310-30 [Member]
Loans [Line Items]
Total Loans	2,994,947	2,715,069
Total Loans [Member] | Non ASC 310-30 [Member] | Commercial and Industrial [Member]
Loans [Line Items]
Total Loans	1,286,355	1,074,696
Total Loans [Member] | Non ASC 310-30 [Member] | Agriculture [Member]
Loans [Line Items]
Total Loans	132,147	134,637
Total Loans [Member] | Non ASC 310-30 [Member] | Energy Loans [Member]
Loans [Line Items]
Total Loans	81,351	90,273
Total Loans [Member] | Non ASC 310-30 [Member] | Commercial Loan [Member]
Loans [Line Items]
Total Loans	1,776,008	1,521,150
Total Loans [Member] | Non ASC 310-30 [Member] | Total Commercial Real Estate [Member]
Loans [Line Items]
Total Loans	481,856	437,642
Total Loans [Member] | Non ASC 310-30 [Member] | Commercial Construction [Member]
Loans [Line Items]
Total Loans	101,596	90,314
Total Loans [Member] | Non ASC 310-30 [Member] | Commercial Acquisition/Development [Member]
Loans [Line Items]
Total Loans	14,445	13,306
Total Loans [Member] | Non ASC 310-30 [Member] | Multifamily [Member]
Loans [Line Items]
Total Loans	40,241	24,954
Total Loans [Member] | Non ASC 310-30 [Member] | Owner-Occupied [Member]
Loans [Line Items]
Total Loans	276,155	221,544
Total Loans [Member] | Non ASC 310-30 [Member] | Non Owner-Occupied [Member]
Loans [Line Items]
Total Loans	325,574	309,068
Total Loans [Member] | Non ASC 310-30 [Member] | Residential Real Estate Segment [Member]
Loans [Line Items]
Total Loans	710,954	728,361
Total Loans [Member] | Non ASC 310-30 [Member] | Senior lien
Loans [Line Items]
Total Loans	655,343	675,690
Total Loans [Member] | Non ASC 310-30 [Member] | Junior lien
Loans [Line Items]
Total Loans	55,611	52,671
Total Loans [Member] | Non ASC 310-30 [Member] | Consumer [Member]
Loans [Line Items]
Total Loans	26,129	27,916
Total Loans [Member] | ASC 310-30 [Member]
Loans [Line Items]
Total Loans	125,596	145,852
Total Loans [Member] | ASC 310-30 [Member] | Commercial Loan [Member]
Loans [Line Items]
Total Loans	31,875	39,280
Total Loans [Member] | ASC 310-30 [Member] | Residential Real Estate Segment [Member]
Loans [Line Items]
Total Loans	13,420	16,524
Total Loans [Member] | ASC 310-30 [Member] | Consumer [Member]
Loans [Line Items]
Total Loans	503	898
Total Loans [Member] | ASC 310-30 [Member] | Commercial Real Estate [Member]
Loans [Line Items]
Total Loans	79,798	89,150
Total Loans [Member] | Pass [Member]
Loans [Line Items]
Total Loans	2,989,177	2,696,660
Total Loans [Member] | Pass [Member] | Non ASC 310-30 [Member]
Loans [Line Items]
Total Loans	2,901,730	2,617,131
Total Loans [Member] | Pass [Member] | Non ASC 310-30 [Member] | Commercial and Industrial [Member]
Loans [Line Items]
Total Loans	1,259,680	1,041,326
Total Loans [Member] | Pass [Member] | Non ASC 310-30 [Member] | Agriculture [Member]
Loans [Line Items]
Total Loans	108,832	123,809
Total Loans [Member] | Pass [Member] | Non ASC 310-30 [Member] | Energy Loans [Member]
Loans [Line Items]
Total Loans	75,356	77,619
Total Loans [Member] | Pass [Member] | Non ASC 310-30 [Member] | Commercial Loan [Member]
Loans [Line Items]
Total Loans	1,696,684	1,444,790
Total Loans [Member] | Pass [Member] | Non ASC 310-30 [Member] | Total Commercial Real Estate [Member]
Loans [Line Items]
Total Loans	475,099	424,274
Total Loans [Member] | Pass [Member] | Non ASC 310-30 [Member] | Commercial Construction [Member]
Loans [Line Items]
Total Loans	101,406	90,099
Total Loans [Member] | Pass [Member] | Non ASC 310-30 [Member] | Commercial Acquisition/Development [Member]
Loans [Line Items]
Total Loans	14,445	10,758
Total Loans [Member] | Pass [Member] | Non ASC 310-30 [Member] | Multifamily [Member]
Loans [Line Items]
Total Loans	38,088	22,495
Total Loans [Member] | Pass [Member] | Non ASC 310-30 [Member] | Owner-Occupied [Member]
Loans [Line Items]
Total Loans	252,816	202,036
Total Loans [Member] | Pass [Member] | Non ASC 310-30 [Member] | Non Owner-Occupied [Member]
Loans [Line Items]
Total Loans	321,160	300,922
Total Loans [Member] | Pass [Member] | Non ASC 310-30 [Member] | Residential Real Estate Segment [Member]
Loans [Line Items]
Total Loans	704,022	720,398
Total Loans [Member] | Pass [Member] | Non ASC 310-30 [Member] | Senior lien
Loans [Line Items]
Total Loans	649,317	669,148
Total Loans [Member] | Pass [Member] | Non ASC 310-30 [Member] | Junior lien
Loans [Line Items]
Total Loans	54,705	51,250
Total Loans [Member] | Pass [Member] | Non ASC 310-30 [Member] | Consumer [Member]
Loans [Line Items]
Total Loans	25,925	27,669
Total Loans [Member] | Pass [Member] | ASC 310-30 [Member]
Loans [Line Items]
Total Loans	87,447	79,529
Total Loans [Member] | Pass [Member] | ASC 310-30 [Member] | Commercial Loan [Member]
Loans [Line Items]
Total Loans	24,706	27,436
Total Loans [Member] | Pass [Member] | ASC 310-30 [Member] | Residential Real Estate Segment [Member]
Loans [Line Items]
Total Loans	10,618	12,477
Total Loans [Member] | Pass [Member] | ASC 310-30 [Member] | Consumer [Member]
Loans [Line Items]
Total Loans	343	721
Total Loans [Member] | Pass [Member] | ASC 310-30 [Member] | Commercial Real Estate [Member]
Loans [Line Items]
Total Loans	51,780	38,895
Total Loans [Member] | Special Mention [Member]
Loans [Line Items]
Total Loans	58,250	38,590
Total Loans [Member] | Special Mention [Member] | Non ASC 310-30 [Member]
Loans [Line Items]
Total Loans	54,947	35,669
Total Loans [Member] | Special Mention [Member] | Non ASC 310-30 [Member] | Commercial and Industrial [Member]
Loans [Line Items]
Total Loans	10,968	7,243
Total Loans [Member] | Special Mention [Member] | Non ASC 310-30 [Member] | Agriculture [Member]
Loans [Line Items]
Total Loans	21,206	8,922
Total Loans [Member] | Special Mention [Member] | Non ASC 310-30 [Member] | Energy Loans [Member]
Loans [Line Items]
Total Loans	2,444
Total Loans [Member] | Special Mention [Member] | Non ASC 310-30 [Member] | Commercial Loan [Member]
Loans [Line Items]
Total Loans	51,772	25,536
Total Loans [Member] | Special Mention [Member] | Non ASC 310-30 [Member] | Total Commercial Real Estate [Member]
Loans [Line Items]
Total Loans	2,926	8,681
Total Loans [Member] | Special Mention [Member] | Non ASC 310-30 [Member] | Commercial Acquisition/Development [Member]
Loans [Line Items]
Total Loans		2,548
Total Loans [Member] | Special Mention [Member] | Non ASC 310-30 [Member] | Multifamily [Member]
Loans [Line Items]
Total Loans		238
Total Loans [Member] | Special Mention [Member] | Non ASC 310-30 [Member] | Owner-Occupied [Member]
Loans [Line Items]
Total Loans	17,154	9,371
Total Loans [Member] | Special Mention [Member] | Non ASC 310-30 [Member] | Non Owner-Occupied [Member]
Loans [Line Items]
Total Loans	2,926	5,895
Total Loans [Member] | Special Mention [Member] | Non ASC 310-30 [Member] | Residential Real Estate Segment [Member]
Loans [Line Items]
Total Loans	248	1,393
Total Loans [Member] | Special Mention [Member] | Non ASC 310-30 [Member] | Senior lien
Loans [Line Items]
Total Loans	248	1,215
Total Loans [Member] | Special Mention [Member] | Non ASC 310-30 [Member] | Junior lien
Loans [Line Items]
Total Loans		178
Total Loans [Member] | Special Mention [Member] | Non ASC 310-30 [Member] | Consumer [Member]
Loans [Line Items]
Total Loans	1	59
Total Loans [Member] | Special Mention [Member] | ASC 310-30 [Member]
Loans [Line Items]
Total Loans	3,303	2,921
Total Loans [Member] | Special Mention [Member] | ASC 310-30 [Member] | Commercial Loan [Member]
Loans [Line Items]
Total Loans	1,125	610
Total Loans [Member] | Special Mention [Member] | ASC 310-30 [Member] | Residential Real Estate Segment [Member]
Loans [Line Items]
Total Loans	1,094	1,327
Total Loans [Member] | Special Mention [Member] | ASC 310-30 [Member] | Consumer [Member]
Loans [Line Items]
Total Loans	10	17
Total Loans [Member] | Special Mention [Member] | ASC 310-30 [Member] | Commercial Real Estate [Member]
Loans [Line Items]
Total Loans	1,074	967
Total Loans [Member] | Substandard [Member]
Loans [Line Items]
Total Loans	72,045	116,558
Total Loans [Member] | Substandard [Member] | Non ASC 310-30 [Member]
Loans [Line Items]
Total Loans	37,199	56,924
Total Loans [Member] | Substandard [Member] | Non ASC 310-30 [Member] | Commercial and Industrial [Member]
Loans [Line Items]
Total Loans	15,092	25,636
Total Loans [Member] | Substandard [Member] | Non ASC 310-30 [Member] | Agriculture [Member]
Loans [Line Items]
Total Loans	2,076	1,906
Total Loans [Member] | Substandard [Member] | Non ASC 310-30 [Member] | Energy Loans [Member]
Loans [Line Items]
Total Loans	3,551	7,811
Total Loans [Member] | Substandard [Member] | Non ASC 310-30 [Member] | Commercial Loan [Member]
Loans [Line Items]
Total Loans	26,644	45,490
Total Loans [Member] | Substandard [Member] | Non ASC 310-30 [Member] | Total Commercial Real Estate [Member]
Loans [Line Items]
Total Loans	3,831	4,687
Total Loans [Member] | Substandard [Member] | Non ASC 310-30 [Member] | Commercial Construction [Member]
Loans [Line Items]
Total Loans	190	215
Total Loans [Member] | Substandard [Member] | Non ASC 310-30 [Member] | Multifamily [Member]
Loans [Line Items]
Total Loans	2,153	2,221
Total Loans [Member] | Substandard [Member] | Non ASC 310-30 [Member] | Owner-Occupied [Member]
Loans [Line Items]
Total Loans	5,925	10,137
Total Loans [Member] | Substandard [Member] | Non ASC 310-30 [Member] | Non Owner-Occupied [Member]
Loans [Line Items]
Total Loans	1,488	2,251
Total Loans [Member] | Substandard [Member] | Non ASC 310-30 [Member] | Residential Real Estate Segment [Member]
Loans [Line Items]
Total Loans	6,521	6,559
Total Loans [Member] | Substandard [Member] | Non ASC 310-30 [Member] | Senior lien
Loans [Line Items]
Total Loans	5,615	5,316
Total Loans [Member] | Substandard [Member] | Non ASC 310-30 [Member] | Junior lien
Loans [Line Items]
Total Loans	906	1,243
Total Loans [Member] | Substandard [Member] | Non ASC 310-30 [Member] | Consumer [Member]
Loans [Line Items]
Total Loans	203	188
Total Loans [Member] | Substandard [Member] | ASC 310-30 [Member]
Loans [Line Items]
Total Loans	34,846	59,634
Total Loans [Member] | Substandard [Member] | ASC 310-30 [Member] | Commercial Loan [Member]
Loans [Line Items]
Total Loans	6,044	11,234
Total Loans [Member] | Substandard [Member] | ASC 310-30 [Member] | Residential Real Estate Segment [Member]
Loans [Line Items]
Total Loans	1,708	2,720
Total Loans [Member] | Substandard [Member] | ASC 310-30 [Member] | Consumer [Member]
Loans [Line Items]
Total Loans	150	160
Total Loans [Member] | Substandard [Member] | ASC 310-30 [Member] | Commercial Real Estate [Member]
Loans [Line Items]
Total Loans	26,944	45,520
Total Loans [Member] | Doubtful [Member]
Loans [Line Items]
Total Loans	1,071	9,113
Total Loans [Member] | Doubtful [Member] | Non ASC 310-30 [Member]
Loans [Line Items]
Total Loans	1,071	5,345
Total Loans [Member] | Doubtful [Member] | Non ASC 310-30 [Member] | Commercial and Industrial [Member]
Loans [Line Items]
Total Loans	615	491
Total Loans [Member] | Doubtful [Member] | Non ASC 310-30 [Member] | Agriculture [Member]
Loans [Line Items]
Total Loans	33
Total Loans [Member] | Doubtful [Member] | Non ASC 310-30 [Member] | Energy Loans [Member]
Loans [Line Items]
Total Loans		4,843
Total Loans [Member] | Doubtful [Member] | Non ASC 310-30 [Member] | Commercial Loan [Member]
Loans [Line Items]
Total Loans	908	5,334
Total Loans [Member] | Doubtful [Member] | Non ASC 310-30 [Member] | Owner-Occupied [Member]
Loans [Line Items]
Total Loans	260
Total Loans [Member] | Doubtful [Member] | Non ASC 310-30 [Member] | Residential Real Estate Segment [Member]
Loans [Line Items]
Total Loans	163	11
Total Loans [Member] | Doubtful [Member] | Non ASC 310-30 [Member] | Senior lien
Loans [Line Items]
Total Loans	$ 163	11
Total Loans [Member] | Doubtful [Member] | ASC 310-30 [Member]
Loans [Line Items]
Total Loans		3,768
Total Loans [Member] | Doubtful [Member] | ASC 310-30 [Member] | Commercial Real Estate [Member]
Loans [Line Items]
Total Loans		$ 3,768

XML

Loans - (Additional Information Regarding Impaired Loans) (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Loans [Line Items]
Unpaid principal balance, Total	$ 37,438	$ 56,787
Recorded investment of impaired loans	28,459	38,282
Loans and Leases Receivable, Allowance	1,112	2,408
Commercial and Industrial [Member]
Loans [Line Items]
Unpaid principal balance with no related allowance recorded	5,762	8,671
Recorded investment with no related allowance recorded	4,409	7,495
Unpaid principal balance of impaired loans with an allowance recorded	4,200	3,495
Recorded investment of impaired loans with an allowance recorded	1,612	3,464
Allowance for loan losses allocated with an allowance recorded	617	492
Agriculture [Member]
Loans [Line Items]
Unpaid principal balance with no related allowance recorded	1,534	2,044
Recorded investment with no related allowance recorded	1,294	1,987
Unpaid principal balance of impaired loans with an allowance recorded	932
Recorded investment of impaired loans with an allowance recorded	895
Allowance for loan losses allocated with an allowance recorded	33
Energy Loans [Member]
Loans [Line Items]
Unpaid principal balance with no related allowance recorded	9,367	17,142
Recorded investment with no related allowance recorded	5,995	6,105
Unpaid principal balance of impaired loans with an allowance recorded		11,216
Recorded investment of impaired loans with an allowance recorded		6,548
Allowance for loan losses allocated with an allowance recorded		1,866
Commercial Loan [Member]
Loans [Line Items]
Unpaid principal balance with no related allowance recorded	18,861	31,207
Recorded investment with no related allowance recorded	13,757	18,784
Unpaid principal balance of impaired loans with an allowance recorded	7,763	15,668
Recorded investment of impaired loans with an allowance recorded	4,957	10,654
Allowance for loan losses allocated with an allowance recorded	914	2,360
Commercial Construction [Member]
Loans [Line Items]
Unpaid principal balance with no related allowance recorded	215
Recorded investment with no related allowance recorded	190
Multifamily [Member]
Loans [Line Items]
Unpaid principal balance with no related allowance recorded	30	33
Recorded investment with no related allowance recorded	30	33
Owner-Occupied [Member]
Loans [Line Items]
Unpaid principal balance with no related allowance recorded	2,198	3,350
Recorded investment with no related allowance recorded	2,059	3,197
Unpaid principal balance of impaired loans with an allowance recorded	2,631	957
Recorded investment of impaired loans with an allowance recorded	2,450	642
Allowance for loan losses allocated with an allowance recorded	264	2
Non Owner-Occupied [Member]
Loans [Line Items]
Unpaid principal balance with no related allowance recorded	917	394
Recorded investment with no related allowance recorded	864	343
Unpaid principal balance of impaired loans with an allowance recorded	214	261
Recorded investment of impaired loans with an allowance recorded	207	255
Allowance for loan losses allocated with an allowance recorded	1	1
Total Commercial Real Estate [Member]
Loans [Line Items]
Unpaid principal balance with no related allowance recorded	1,162	427
Recorded investment with no related allowance recorded	1,084	376
Unpaid principal balance of impaired loans with an allowance recorded	214	261
Recorded investment of impaired loans with an allowance recorded	207	255
Allowance for loan losses allocated with an allowance recorded	1	1
Senior lien
Loans [Line Items]
Unpaid principal balance with no related allowance recorded	597	1,551
Recorded investment with no related allowance recorded	572	1,426
Unpaid principal balance of impaired loans with an allowance recorded	6,993	5,646
Recorded investment of impaired loans with an allowance recorded	6,282	5,016
Allowance for loan losses allocated with an allowance recorded	186	31
Junior lien
Loans [Line Items]
Unpaid principal balance with no related allowance recorded		54
Recorded investment with no related allowance recorded		51
Unpaid principal balance of impaired loans with an allowance recorded	1,641	1,781
Recorded investment of impaired loans with an allowance recorded	1,398	1,532
Allowance for loan losses allocated with an allowance recorded	10	14
Residential Real Estate Segment [Member]
Loans [Line Items]
Unpaid principal balance with no related allowance recorded	597	1,605
Recorded investment with no related allowance recorded	572	1,477
Unpaid principal balance of impaired loans with an allowance recorded	8,634	7,427
Recorded investment of impaired loans with an allowance recorded	7,680	6,548
Allowance for loan losses allocated with an allowance recorded	196	45
Consumer [Member]
Loans [Line Items]
Unpaid principal balance with no related allowance recorded		4
Recorded investment with no related allowance recorded		4
Unpaid principal balance of impaired loans with an allowance recorded	207	188
Recorded investment of impaired loans with an allowance recorded	202	184
Allowance for loan losses allocated with an allowance recorded	1	2
Impaired Loans With No Related Allowance Recorded [Member] [Member]
Loans [Line Items]
Unpaid principal balance with no related allowance recorded	20,620	33,243
Recorded investment with no related allowance recorded	15,413	20,641
Impaired Loans With Related Allowance Recorded [Member]
Loans [Line Items]
Unpaid principal balance of impaired loans with an allowance recorded	16,818	23,544
Recorded investment of impaired loans with an allowance recorded	13,046	17,641
Allowance for loan losses allocated with an allowance recorded	$ 1,112	$ 2,408

XML

Loans - (Impaired Loans - Average Recorded Investment and Interest Income Recognized) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Loans [Line Items]
Impaired Financing Receivable, Average Recorded Investment	$ 32,517	$ 46,154	$ 36,236	$ 50,467
Impaired Financing Receivable, Interest Income, Cash Basis Method	220	125	429	428
Commercial and Industrial [Member]
Loans [Line Items]
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	4,272	9,589	5,802	10,511
Impaired Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method	40	39	113	177
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	3,692	35	4,363	44
Owner-Occupied [Member]
Loans [Line Items]
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	2,069	1,513	2,116	1,539
Impaired Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method	19	22	60	70
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	2,456	730	2,479	761
Impaired Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method	5	8	15	15
Agriculture [Member]
Loans [Line Items]
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	1,349	1,845	1,470	1,845
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	896	176	907	178
Impaired Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method	1	1	4	4
Energy Loans [Member]
Loans [Line Items]
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	7,960	17,142	9,035	20,327
Impaired Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method	116		116
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment		6,436		6,377
Commercial Loan [Member]
Loans [Line Items]
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	15,650	30,089	18,423	34,222
Impaired Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method	175	61	289	247
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	7,044	7,377	7,749	7,360
Impaired Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method	6	9	19	19
Commercial Construction [Member]
Loans [Line Items]
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	190		190
Multifamily [Member]
Loans [Line Items]
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	30	34	31	35
Impaired Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method			1	1
Non Owner-Occupied [Member]
Loans [Line Items]
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	871	363	886	376
Impaired Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method	5	6	17	16
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	209	265	216	272
Impaired Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method	2	3	7	11
Total Commercial Real Estate [Member]
Loans [Line Items]
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	871	363	886	376
Impaired Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method	5	6	17	16
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	429	299	437	307
Impaired Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method	2	3	8	12
Senior lien
Loans [Line Items]
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	574	1,555	585	1,578
Impaired Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method		5		16
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	6,334	4,508	6,494	4,620
Impaired Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method	20	25	60	70
Junior lien
Loans [Line Items]
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment		53		54
Impaired Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method				1
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	1,409	1,696	1,444	1,733
Impaired Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method	12	16	36	47
Residential Real Estate Segment [Member]
Loans [Line Items]
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	574	1,608	585	1,632
Impaired Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method		5		17
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	7,743	6,204	7,938	6,353
Impaired Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method	32	41	96	117
Consumer [Member]
Loans [Line Items]
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment		5		5
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	206	209	218	212
Impaired Loans With No Related Allowance Recorded [Member] [Member]
Loans [Line Items]
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	17,095	32,065	19,894	36,235
Impaired Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method	180	72	306	280
Impaired Loans With Related Allowance Recorded [Member]
Loans [Line Items]
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	15,422	14,089	16,342	14,232
Impaired Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method	$ 40	$ 53	$ 123	$ 148

XML

Loans - Troubled Debt Restructuring and Loans Accounted for Under ASC Topic 310-30 Narratives (Details) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017 USD ($) item	Sep. 30, 2016 loan	Sep. 30, 2017 USD ($) loan item	Sep. 30, 2016 loan
Debt Instrument [Line Items]
TDR's modified within the past year that defaulted on their restructured terms | item	1		4
Change in Non-accruing TDRs			$ (7.1)
Troubled Debt Restructurings [Member]
Debt Instrument [Line Items]
TDR's modified within the past year that defaulted on their restructured terms | loan		3		0
Recorded investment	$ 4.0		$ 4.0
Energy Loans [Member]
Debt Instrument [Line Items]
TDR's modified within the past year that defaulted on their restructured terms | loan			1
Financing Receivable, Modifications, Subsequent Default, Recorded Investment			$ 6.7
Commercial Loan [Member]
Debt Instrument [Line Items]
Financing Receivable, Modifications, Subsequent Default, Recorded Investment			$ 0.7

XML

Loans - (Additional Information Related to Accruing TDR's) (Details) - Accruing TDR [Member] - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2017	Dec. 31, 2016
Loans [Line Items]
Recorded investment	$ 7,620	$ 5,767
Average year-to- date recorded investment	8,039	6,017
Unpaid principal balance	8,007	6,030
Unfunded commitments to fund TDRs	1,815	102
Commercial [Member]
Loans [Line Items]
Recorded investment	5,680	3,302
Average year-to- date recorded investment	6,026	3,440
Unpaid principal balance	6,003	3,464
Unfunded commitments to fund TDRs	1,813	100
Commercial Real Estate [Member]
Loans [Line Items]
Recorded investment	470	538
Average year-to- date recorded investment	499	572
Unpaid principal balance	522	590
Residential Real Estate Segment [Member]
Loans [Line Items]
Recorded investment	1,468	1,920
Average year-to- date recorded investment	1,510	1,996
Unpaid principal balance	1,480	1,969
Unfunded commitments to fund TDRs	2	2
Consumer [Member]
Loans [Line Items]
Recorded investment	2	7
Average year-to- date recorded investment	4	9
Unpaid principal balance	$ 2	$ 7

XML

Loans - (Summary of Company's Carrying Value of Non-Accrual TDR's) (Details) - Non-Accruing TDR [Member] - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Loans [Line Items]
Carrying Value of Non - Accruing TDR's	$ 9,600	$ 16,708
Commercial [Member]
Loans [Line Items]
Carrying Value of Non - Accruing TDR's	8,143	15,265
Residential Real Estate Segment [Member]
Loans [Line Items]
Carrying Value of Non - Accruing TDR's	1,284	1,301
Consumer [Member]
Loans [Line Items]
Carrying Value of Non - Accruing TDR's	$ 173	$ 142

XML

Loans - (Re-Measurement of Loans Accounted for Under ASC Topic 310-30 Resulting in Changes in Carrying Amount of Accretable Yield) (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Certain Loans Acquired in Transfer Accounted for as Debt Securities, Accretable Yield Movement Schedule [Roll Forward]
Accretable yield beginning balance	$ 60,476	$ 84,194
Reclassification from non-accretable difference	9,697	10,611
Reclassification to non-accretable difference	(907)	(4,479)
Accretion	(17,718)	(26,653)
Accretable yield ending balance	$ 51,548	$ 63,673

XML

Loans - (Composition of Net Book Value for Loans Accounted for under ASC Topic 310-30) (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2017	Dec. 31, 2016
Receivables [Abstract]
Contractual cash flows	$ 499,652	$ 537,611
Non-accretable difference	(322,508)	(331,283)
Accretable yield	(51,548)	(60,476)
Loans accounted for under ASC 310-30	$ 125,596	$ 145,852

XML

Allowance for Loan Losses - (Summary of Company's Allowance for Loan Losses ("All") and Recorded Investment in Loans) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Dec. 31, 2016	Sep. 30, 2016
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	$ 34,959	$ 40,106	$ 29,174	$ 27,119
Provision (recoupment) for loan losses			9,700	22,369
Ending balance	30,047	28,021	30,047	28,021
Carrying amount of loan investments					$ 3,120,543	$ 2,860,921	$ 2,822,555
Loans	34,959	40,106	29,174	27,119	30,047	29,174	28,021
Total Loans					3,120,543	2,860,921	2,822,555
Receivables Acquired with Deteriorated Credit Quality [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Ending balance		157,663		157,663
Loans		157,663		157,663			157,663
Non ASC 310-30 [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	34,817	39,875	28,949	26,042
Charge-offs	(8,843)	(17,540)	(9,174)	(21,881)
Recoveries	51	168	347	464
Provision (recoupment) for loan losses	4,022	5,275	9,925	23,153
Ending balance	30,047	27,778	30,047	27,778
Ending allowance balance individually evaluated for impairment					28,459		1,499
Ending allowance balance collectively evaluated for impairment							2,630,290
Loans individually evaluated for impairment							243
Loans collectively evaluated for impairment							28,021
Carrying amount of loan investments					2,994,947	2,715,069
Loans	34,817	39,875	28,949	26,042	30,047	28,949	27,778
Total Loans					2,994,947	2,715,069
Non ASC 310-30 [Member] | Receivables Acquired with Deteriorated Credit Quality [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Ending allowance balance individually evaluated for impairment					1,112
Ending allowance balance collectively evaluated for impairment					28,935
Loans collectively evaluated for impairment					2,966,488
Carrying amount of loan investments					125,596
Total Loans					125,596
ASC 310-30 [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	142	231	225	1,077
Charge-offs		(6)		(47)
Provision (recoupment) for loan losses	(142)	18	(225)	(787)
Ending balance		243		243
Carrying amount of loan investments					125,596	145,852
Loans	142	231	225	1,077		225	243
Total Loans					125,596	145,852
ASC 310-30 [Member] | Receivables Acquired with Deteriorated Credit Quality [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Ending balance		26,279		26,279
Carrying amount of loan investments							34,602
Loans		26,279		26,279			26,279
Total Loans							34,602
Commercial Portfolio Segment [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	24,656	29,982	18,821	17,261
Ending balance	20,112	17,936	20,112	17,936
Carrying amount of loan investments					1,807,883		1,520,606
Loans	24,656	29,982	18,821	17,261	20,112	18,821	17,936
Total Loans					1,807,883		1,520,606
Commercial Portfolio Segment [Member] | Receivables Acquired with Deteriorated Credit Quality [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Ending balance		43,339		43,339
Loans		43,339		43,339			43,339
Commercial Portfolio Segment [Member] | Non ASC 310-30 [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	24,656	29,980	18,821	16,473
Charge-offs	(8,618)	(17,204)	(8,638)	(20,684)
Recoveries	11	19	52	43
Provision (recoupment) for loan losses	4,063	5,112	9,877	22,075
Ending balance	20,112	17,907	20,112	17,907
Ending allowance balance individually evaluated for impairment					18,714		1,462
Ending allowance balance collectively evaluated for impairment							1,450,524
Loans individually evaluated for impairment							29
Loans collectively evaluated for impairment							17,936
Loans	24,656	29,980	18,821	16,473	20,112	18,821	17,907
Commercial Portfolio Segment [Member] | Non ASC 310-30 [Member] | Receivables Acquired with Deteriorated Credit Quality [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Ending allowance balance individually evaluated for impairment					914
Ending allowance balance collectively evaluated for impairment					19,198
Loans collectively evaluated for impairment					1,757,294
Carrying amount of loan investments					31,875
Total Loans					31,875
Commercial Portfolio Segment [Member] | ASC 310-30 [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance		2		788
Provision (recoupment) for loan losses		27		(759)
Ending balance		29		29
Loans		2		788			29
Commercial Portfolio Segment [Member] | ASC 310-30 [Member] | Receivables Acquired with Deteriorated Credit Quality [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Ending balance		16,445		16,445
Carrying amount of loan investments							26,743
Loans		16,445		16,445			16,445
Total Loans							26,743
Residential Portfolio Segment [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	4,067	4,504	4,387	5,281
Ending balance	4,142	4,245	4,142	4,245
Carrying amount of loan investments					724,374		724,445
Loans	4,067	4,504	4,387	5,281	4,142	4,387	4,245
Total Loans					724,374		724,445
Residential Portfolio Segment [Member] | Receivables Acquired with Deteriorated Credit Quality [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Ending balance		17,654		17,654
Loans		17,654		17,654			17,654
Residential Portfolio Segment [Member] | Non ASC 310-30 [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	4,067	4,504	4,387	5,245
Charge-offs	(16)	(166)	(26)	(363)
Recoveries	14	84	127	106
Provision (recoupment) for loan losses	77	(177)	(346)	(743)
Ending balance	4,142	4,245	4,142	4,245
Ending allowance balance individually evaluated for impairment					8,252		34
Ending allowance balance collectively evaluated for impairment							699,796
Loans collectively evaluated for impairment							4,245
Loans	4,067	4,504	4,387	5,245	4,142	4,387	4,245
Residential Portfolio Segment [Member] | Non ASC 310-30 [Member] | Receivables Acquired with Deteriorated Credit Quality [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Ending allowance balance individually evaluated for impairment					195
Ending allowance balance collectively evaluated for impairment					3,947
Loans collectively evaluated for impairment					702,702
Carrying amount of loan investments					13,420
Total Loans					13,420
Residential Portfolio Segment [Member] | ASC 310-30 [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance				36
Provision (recoupment) for loan losses				(36)
Loans				36
Residential Portfolio Segment [Member] | ASC 310-30 [Member] | Receivables Acquired with Deteriorated Credit Quality [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Ending balance		4,211		4,211
Carrying amount of loan investments							6,995
Loans		4,211		4,211			4,211
Total Loans							6,995
Consumer Loan [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	302	252	324	411
Ending balance	273	283	273	283
Carrying amount of loan investments					26,632		28,769
Loans	302	252	324	411	273	324	283
Total Loans					26,632		28,769
Consumer Loan [Member] | Receivables Acquired with Deteriorated Credit Quality [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Ending balance		1,183		1,183
Loans		1,183		1,183			1,183
Consumer Loan [Member] | Non ASC 310-30 [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	294	234	319	385
Charge-offs	(209)	(170)	(510)	(558)
Recoveries	26	57	148	242
Provision (recoupment) for loan losses	162	162	316	214
Ending balance	273	283	273	283
Ending allowance balance individually evaluated for impairment					202		2
Ending allowance balance collectively evaluated for impairment							27,376
Loans collectively evaluated for impairment							283
Loans	294	234	319	385	273	319	283
Consumer Loan [Member] | Non ASC 310-30 [Member] | Receivables Acquired with Deteriorated Credit Quality [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Ending allowance balance individually evaluated for impairment					1
Ending allowance balance collectively evaluated for impairment					272
Loans collectively evaluated for impairment					25,927
Carrying amount of loan investments					503
Total Loans					503
Consumer Loan [Member] | ASC 310-30 [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	8	18	5	26
Charge-offs		(6)		(6)
Provision (recoupment) for loan losses	(8)	(12)	(5)	(20)
Loans	8	18	5	26		5
Consumer Loan [Member] | ASC 310-30 [Member] | Receivables Acquired with Deteriorated Credit Quality [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Ending balance		281		281
Carrying amount of loan investments							210
Loans		281		281			281
Total Loans							210
Commercial Real Estate Portfolio Segment [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	5,934	5,368	5,642	4,166
Ending balance	5,520	5,557	5,520	5,557
Carrying amount of loan investments					561,654		548,735
Loans	5,934	5,368	5,642	4,166	5,520	5,642	5,557
Total Loans					561,654		548,735
Commercial Real Estate Portfolio Segment [Member] | Receivables Acquired with Deteriorated Credit Quality [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Ending balance		95,487		95,487
Loans		95,487		95,487			95,487
Commercial Real Estate Portfolio Segment [Member] | Non ASC 310-30 [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	5,800	5,157	5,422	3,939
Charge-offs				(276)
Recoveries		8	20	73
Provision (recoupment) for loan losses	(280)	178	78	1,607
Ending balance	5,520	5,343	5,520	5,343
Ending allowance balance individually evaluated for impairment					1,291		1
Ending allowance balance collectively evaluated for impairment							452,594
Loans individually evaluated for impairment							214
Loans collectively evaluated for impairment							5,557
Loans	5,800	5,157	5,422	3,939	5,520	5,422	5,343
Commercial Real Estate Portfolio Segment [Member] | Non ASC 310-30 [Member] | Receivables Acquired with Deteriorated Credit Quality [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Ending allowance balance individually evaluated for impairment					2
Ending allowance balance collectively evaluated for impairment					5,518
Loans collectively evaluated for impairment					480,565
Carrying amount of loan investments					79,798
Total Loans					$ 79,798
Commercial Real Estate Portfolio Segment [Member] | ASC 310-30 [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Beginning balance	134	211	220	227
Charge-offs				(41)
Provision (recoupment) for loan losses	(134)	3	(220)	28
Ending balance		214		214
Loans	$ 134	211	$ 220	227		$ 220	214
Commercial Real Estate Portfolio Segment [Member] | ASC 310-30 [Member] | Receivables Acquired with Deteriorated Credit Quality [Member]
Allowance for Loan and Lease Losses [Roll Forward]
Ending balance		5,342		5,342
Carrying amount of loan investments							654
Loans		$ 5,342		$ 5,342			5,342
Total Loans							$ 654

XML

Allowance for Loan Losses - (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Allowance For Loan And Lease Losses [Line Items]
Provision (recoupment) for loan losses			$ 9,700	$ 22,369
Impaired loans	$ 12,300		12,300
Energy Loans [Member]
Allowance For Loan And Lease Losses [Line Items]
Specific Reserve in Provision		$ 3,900	6,300	19,000
Impaired loans	6,000		6,000
Non Accrual Loan in Provision	2,900
Commercial and Industrial [Member]
Allowance For Loan And Lease Losses [Line Items]
Impaired loans	3,000		3,000
Non ASC 310-30 [Member]
Allowance For Loan And Lease Losses [Line Items]
Charge-offs, net	8,800	17,400	8,800	21,400
Provision (recoupment) for loan losses	4,022	5,275	9,925	23,153
ASC 310-30 [Member]
Allowance For Loan And Lease Losses [Line Items]
Provision (recoupment) for loan losses	$ (142)	$ 18	$ (225)	$ (787)

XML

Other Real Estate Owned - (Summary of Activity in OREO Balances) (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Other Real Estate [Roll Forward]
Balance	$ 15,662	$ 20,814
Transfers from loan portfolio, at fair value	760	4,755
Impairments	(766)	(262)
Proceeds From Sale Of Other Real Estate Owned, Net	(3,326)	(4,107)
Balance	$ 12,330	$ 21,200

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Other Real Estate Owned - (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
FDIC Loss-Sharing Related
Minority interests in OREO which are held by outside banks					$ 1,600
Gain on sale of OREO, net	$ 497	$ 2,077	$ 2,254	$ 4,120

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Borrowings (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Assets Sold under Agreements to Repurchase [Line Items]
Fair value of collateral	$ 33.7		$ 33.7		$ 7.0
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Due Date, Earliest	2018		2018
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Due Date, Last	2020		2020
Federal Home Loan Bank, Advances, General Debt Obligations, Maximum Amount Available	$ 787.4		$ 787.4
FHLB advances	129.1		129.1		25.0
Interest expense related to FHLB advances	$ 0.6	$ 0.2	$ 1.3	$ 0.5
Minimum
Assets Sold under Agreements to Repurchase [Line Items]
Interest rate range of FHLB advances	1.31%		1.31%
Maximum
Assets Sold under Agreements to Repurchase [Line Items]
Interest rate range of FHLB advances	2.33%		2.33%
Federal Home Loan Bank of Des Moines [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Fair value of collateral	$ 27.6		$ 27.6		28.8
U.S. Treasury Securities [Member]
Assets Sold under Agreements to Repurchase [Line Items]
Fair value of collateral	$ 126.5		$ 126.5		$ 99.1

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Regulatory Capital - (Capital Ratio Requirements under Prompt Corrective Action or Other Regulatory Requirements) (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Parent Company [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Leverage Ratio	10.40%	10.40%
Common equity risk-based ratio	13.50%	14.20%
Risk-based capital Ratio	13.50%	14.20%
Total risk-based capital Ratio	14.40%	15.00%
Leverage Amount	$ 482,758	$ 470,259
Common equity risk-based amount	482,758	470,259
Risk-based capital amount	482,758	470,259
Total risk-based capital Amount	$ 513,130	$ 499,759
Required to be considered adequately capitalized Ratio, leverage ratio	4.00%	4.00%
Required to be considered adequately capitalized Ratio, risk-based common equity capital ratio	4.50%	4.50%
Required to be considered adequately capitalized Ratio, risk-based capital ratio	6.00%	6.00%
Required to be considered adequately capitalized Ratio, Total risk-based capital ratio	8.00%	8.00%
Required to be considered adequately capitalized leverage Amount	$ 185,124	$ 181,019
Required to be considered adequately capitalized common equity capital amount	208,265	203,647
Required to be considered adequately capitalized risk-based capital Amount	214,123	199,467
Required to be considered adequately capitalized Total risk-based capital Amount	$ 285,498	$ 265,955
NBH Bank [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Leverage Ratio	8.50%	8.60%
Common equity risk-based ratio	11.00%	11.80%
Risk-based capital Ratio	11.00%	11.80%
Total risk-based capital Ratio	11.90%	12.70%
Leverage Amount	$ 390,995	$ 389,189
Common equity risk-based amount	390,995	389,189
Risk-based capital amount	390,995	389,189
Total risk-based capital Amount	$ 421,368	$ 418,689
Required to be considered well capitalized Ratio, leverage ratio	5.00%	4.50%
Required to be considered adequately capitalized Ratio, risk-based common equity capital ratio	6.50%	6.50%
Required to be considered well capitalized Ratio, risk-based capital ratio	8.00%	8.00%
Required to be considered well capitalized Ratio, Total risk-based capital ratio	10.00%	10.00%
Required to be considered well capitalized leverage Amount	$ 230,646	$ 202,903
Required to be considered well capitalized common equity capital amount	299,840	293,082
Required to be considered well capitalized risk-based capital Amount	284,224	264,596
Required to be considered well capitalized Total risk-based capital Amount	$ 355,280	$ 330,745
Required to be considered adequately capitalized Ratio, leverage ratio	4.00%	4.00%
Required to be considered adequately capitalized Ratio, risk-based common equity capital ratio	4.50%	4.50%
Required to be considered adequately capitalized Ratio, risk-based capital ratio	6.00%	6.00%
Required to be considered adequately capitalized Ratio, Total risk-based capital ratio	8.00%	8.00%
Required to be considered adequately capitalized leverage Amount	$ 184,517	$ 180,358
Required to be considered adequately capitalized common equity capital amount	207,582	202,903
Required to be considered adequately capitalized risk-based capital Amount	213,168	198,447
Required to be considered adequately capitalized Total risk-based capital Amount	$ 284,224	$ 264,596

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Stock-based Compensation and Employee Benefits - (Narrative) (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Stock options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock based compensation expense	$ 100,000	$ 100,000	$ 500,000	$ 500,000
Unrecognized compensation expense	700,000		$ 700,000
Unrecognized compensation cost, weighted-average period, years			2 years 2 months 12 days
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards granted (in shares)			66,471
Weighted average grant-date fair value, Granted (in dollars per share)			$ 33.43
Stock based compensation expense	800,000	$ 700,000	$ 2,300,000	$ 2,200,000
Market-based stock awards | NBH Holdings Corp. 2014 Omnibus Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards granted (in shares)			26,594
Share-based Compensation Arrangement by Share-based Payment Award, Award Performance Period			5 years
Weighted average grant-date fair value, Granted (in dollars per share)			$ 11.28
Unrecognized compensation expense	200,000		$ 200,000
Unrecognized compensation cost, weighted-average period, years			1 year 8 months 12 days
Performance stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards granted (in shares)			49,758
Weighted average grant-date fair value, Granted (in dollars per share)			$ 33.22
Performance stock units | NBH Holdings Corp. 2014 Omnibus Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards granted (in shares)			49,758	91,342
Unrecognized compensation expense	$ 3,600,000		$ 3,600,000
Unrecognized compensation cost, weighted-average period, years			2 years
Performance stock units | NBH Holdings Corp. 2014 Omnibus Incentive Plan [Member] | EPS target
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of awards based on performance type			60.00%
Weighted average grant-date fair value, Granted (in dollars per share)			$ 34.04
Performance stock units | NBH Holdings Corp. 2014 Omnibus Incentive Plan [Member] | TSR target
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of awards based on performance type			40.00%
Weighted average grant-date fair value, Granted (in dollars per share)			$ 32.06
Employee Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized	400,000		400,000
Maximum stock purchases by employees, value			$ 25,000
Maximum stock purchases by employees (in shares)			2,000
Discount on purchase of common stock (as a percent)			90.00%
Offering period for employee stock purchases			6 months
Employees purchased shares under the ESPP (in shares)			11,178
Shares available for issuance	355,159		355,159
Minimum | Stock options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period			1 year
Share Based Compensation Arrangement By Share Based Payment Award Options Granted Contractual Term			7 years
Minimum | Restricted Stock [Member] | NBH Holdings Corp. 2014 Omnibus Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period			1 year
Minimum | Performance stock units | NBH Holdings Corp. 2014 Omnibus Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of initial target awards			0.00%
Maximum | Stock options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period			4 years
Share Based Compensation Arrangement By Share Based Payment Award Options Granted Contractual Term			10 years
Maximum | Restricted Stock [Member] | NBH Holdings Corp. 2014 Omnibus Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period			3 years
Maximum | Performance stock units | NBH Holdings Corp. 2014 Omnibus Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of initial target awards			150.00%

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Stock-based Compensation and Benefits - (Summary of Option Activity) (Details) - USD ($) $ / shares in Units, $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2017	Dec. 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Outstanding Options, beginning	2,185,922
Granted, Options	100,401
Forfeited, Options	(26,455)
Exercised, Options	(598,728)
Outstanding Options, ending	1,661,140	2,185,922
Options fully vested and exercisable at end of period, Options	1,425,900
Options expected to vest, Options	1,644,451
Outstanding, Weighted average exercise price, beginning	$ 19.81
Granted, Weighted average exercise price	33.98
Forfeited, Weighted average exercise price	22.11
Exercised, Weighted average exercise price	19.90
Outstanding, Weighted average exercised price, ending	20.62	$ 19.81
Options fully vested and exercisable at end of period, Weighted average exercise price	19.82
Options expected to vest, Weighted average exercise price	$ 20.55
Outstanding, Weighted average remaining contractual term in years	4 years 3 months	4 years 10 months 6 days
Options fully vested and exercisable at end of period, weighted average remaining contractual term in years	3 years 6 months 7 days
Options expected to vest, Weighted average remaining contractual term in years	4 years 2 months 16 days
Outstanding, Aggregate intrinsic value, beginning	$ 7,753
Outstanding, Outstanding, Aggregate intrinsic value, beginning	25,042	$ 7,753
Aggregate intrinsic Value of Options fully vested and exercisable at end of period	22,829
Options expected to vest, Aggregate Intrinsic Value	$ 24,905

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Stock-based Compensation and Benefits - (Summary of Restricted Stock Activity) (Details)	9 Months Ended
	Sep. 30, 2017 $ / shares shares
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Unvested Restricted shares, Beginning (in shares) | shares	499,271
Unvested Restricted shares, Vested (in shares) | shares	(300,448)
Unvested Restricted shares, Granted (in shares) | shares	66,471
Unvested Restricted shares, Forfeited (in shares) | shares	(18,817)
Unvested Restricted shares, Ending (in shares) | shares	246,477
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Weighted average grant-date fair value, Beginning (in dollars per share) | $ / shares	$ 15.82
Weighted average grant-date fair value, Vested (in dollars per share) | $ / shares	15.31
Weighted average grant-date fair value, Granted (in dollars per share) | $ / shares	33.43
Weighted average grant-date fair value, Forfeited (in dollars per share) | $ / shares	17.53
Weighted average grant-date fair value, Ending (in dollars per share) | $ / shares	$ 20.41
Performance stock units
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Unvested Restricted shares, Beginning (in shares) | shares	85,295
Unvested Restricted shares, Granted (in shares) | shares	49,758
Unvested Restricted shares, Forfeited (in shares) | shares	(9,278)
Unvested Restricted shares, Ending (in shares) | shares	125,775
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Weighted average grant-date fair value, Beginning (in dollars per share) | $ / shares	$ 18.22
Weighted average grant-date fair value, Granted (in dollars per share) | $ / shares	33.22
Weighted average grant-date fair value, Forfeited (in dollars per share) | $ / shares	21.46
Weighted average grant-date fair value, Ending (in dollars per share) | $ / shares	$ 23.91

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Warrants (Narrative) (Details) - $ / shares	3 Months Ended
	Mar. 31, 2017	Sep. 30, 2017	Dec. 31, 2016	Sep. 30, 2016
Warrants and Rights Note Disclosure [Abstract]
Warrants granted, exercise price per share		$ 20.00	$ 20.00	$ 20.00
Warrants settled or exercised	250,750

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Common Stock - (Narrative) (Details) - USD ($) $ in Thousands	9 Months Ended		12 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016	Aug. 05, 2016
Schedule Of Common Stock [Line Items]
Shares repurchased (shares)		4,231,874
Repurchase of shares		$ 87,310
Remaining authorized amount	$ 12,600
Shares outstanding	26,802,964		26,386,583
Common Class A [Member]
Schedule Of Common Stock [Line Items]
Shares outstanding	26,802,964		26,386,583
Restricted issued but not yet vested, shares	246,477		499,271
New Board Authorized Share Repurchase Program
Schedule Of Common Stock [Line Items]
Stock repurchase program, authorized amount				$ 50,000

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Income Per Share - (Narrative) (Details) - $ / shares	3 Months Ended	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Shares outstanding	26,282,224	26,802,964	26,282,224
Outstanding stock options to purchase common stock	2,669,859	1,661,140	2,669,859	2,185,922
Outstanding stock options to purchase common stock, per share	$ 19.82	$ 20.62	$ 19.82	$ 19.81
Warrants granted, exercise price per share	$ 20.00	$ 20.00	$ 20.00	$ 20.00
Restricted shares outstanding		372,252	912,783
Warrant [Member]
Dilutive Convertible Securities	70,182	11,243	27,343

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Income Per Share - (Schedule of Computation of Basic and Diluted Income Per Share) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Net income	$ 7,231	$ 8,314	$ 24,698	$ 13,069
Undistributed Earnings (Loss) Allocated to Participating Securities, Basic	(14)	(12)	(43)	(37)
Income available to common stockholders (numerator)	$ 7,217	$ 8,302	$ 24,655	$ 13,032
Weighted average common shares outstanding (denominator)	26,947,821	27,654,827	26,902,128	28,991,094
Weighted average shares outstanding for diluted earnings per common share	27,628,734	27,898,756	27,636,675	29,111,322
Income per share-basic (in dollars per share)	$ 0.27	$ 0.30	$ 0.92	$ 0.45
Income per share-diluted (in dollars per share)	$ 0.26	$ 0.30	$ 0.89	$ 0.45
Equity Option [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Dilutive Convertible Securities	680,913	173,747	723,304	92,885
Warrant [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Dilutive Convertible Securities		70,182	11,243	27,343

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Income Taxes (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Income Tax Disclosure [Abstract]
Income tax rate	19.30%	16.90%	9.80%	18.00%
Effective Income Tax Rate After Stock Compensation Activity	$ 19.9		$ 22.3
Employee Service Share-based Compensation, Tax Benefit from Exercise of Stock Options	$ 100,000		$ 3,400,000

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Derivatives - (FV of Derivatives on the Balance Sheet) (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Designated as Hedging Instrument [Member]
Derivative [Line Items]
Asset derivatives fair value	$ 8,165	$ 9,528
Liability derivatives fair value	2,251	1,381
Not Designated as Hedging Instrument, Economic Hedge [Member]
Derivative [Line Items]
Asset derivatives fair value	3,247	2,187
Liability derivatives fair value	3,176	2,085
Other assets [Member] | Interest rate products [Member] | Designated as Hedging Instrument [Member]
Derivative [Line Items]
Asset derivatives fair value	8,165	9,528
Liability derivatives fair value	2,251	1,381
Other assets [Member] | Interest rate products [Member] | Not Designated as Hedging Instrument, Economic Hedge [Member]
Derivative [Line Items]
Asset derivatives fair value	3,014	1,900
Liability derivatives fair value	3,167	1,898
Other assets [Member] | Interest Rate Lock Commitments [Member] | Not Designated as Hedging Instrument, Economic Hedge [Member]
Derivative [Line Items]
Asset derivatives fair value	180	149
Liability derivatives fair value	2	6
Other assets [Member] | Forward Contracts [Member] | Not Designated as Hedging Instrument, Economic Hedge [Member]
Derivative [Line Items]
Asset derivatives fair value	53	138
Liability derivatives fair value	$ 7	$ 20

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Derivatives - (Narrative) (Details) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2017 USD ($) item	Sep. 30, 2016 USD ($)	Sep. 30, 2017 USD ($) item	Sep. 30, 2016 USD ($)	Dec. 31, 2016 USD ($) item
Derivative [Line Items]
Number of interest rate lock commitments | item					78
Number of forward contracts | item			13		11
Notional amount	$ 18,100		$ 18,100
Gain (loss) related to hedge ineffectiveness	400	$ (48)	800	$ (1,200)
Termination value of derivatives in net liability position	1,400		1,400		$ 1,300
Collateral Already Posted, Aggregate Fair Value	2,300		$ 2,300		800
Interest Rate Lock Commitments [Member]
Derivative [Line Items]
Notional amount					13,800
Number OF Interest Rate Loack Commitments Member
Derivative [Line Items]
Number of interest rate lock commitments | item			81
Interest Rate Lock Commitments Notional Amount Member
Derivative [Line Items]
Notional amount	$ 14,000		$ 14,000
Forward Contract Notional [Member]
Derivative [Line Items]
Notional amount					$ 11,800
Designated as Hedging Instrument [Member] | Interest rate swap derivatives [Member]
Derivative [Line Items]
Number of interest rate swaps held | item	56		56		42
Notional amount	$ 398,100		$ 398,100		$ 313,000
Not Designated as Hedging Instrument, Economic Hedge [Member] | Interest rate swap derivatives [Member]
Derivative [Line Items]
Number of interest rate swaps held | item	45		45		36
Notional amount	$ 194,700		$ 194,700		$ 132,600

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Derivatives - (Derivatives on the Income Statement) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Not Designated as Hedging Instrument, Economic Hedge [Member]
Derivative [Line Items]
Amount of gain or (loss) recognized in income on derivatives	$ 17	$ 170	$ (192)	$ 140
Fair Value Hedging [Member] | Designated as Hedging Instrument [Member]
Derivative [Line Items]
Amount of gain or (loss) recognized in income on derivatives	(128)	1,674	(2,233)	(15,740)
Interest rate products [Member] | Designated as Hedging Instrument [Member]
Derivative [Line Items]
Amount of gain or (loss) recognized in income on hedged items	(283)	(1,722)	1,437	14,576
Interest rate products [Member] | Designated as Hedging Instrument [Member] | Other Non-Interest income [Member]
Derivative [Line Items]
Amount of gain or (loss) recognized in income on hedged items	(283)	(1,722)	1,437	14,576
Interest rate products [Member] | Not Designated as Hedging Instrument, Economic Hedge [Member] | Other Non-Interest income [Member]
Derivative [Line Items]
Amount of gain or (loss) recognized in income on derivatives	(75)	(23)	(155)	(206)
Interest rate products [Member] | Fair Value Hedging [Member] | Designated as Hedging Instrument [Member] | Other Non-Interest income [Member]
Derivative [Line Items]
Amount of gain or (loss) recognized in income on derivatives	(128)	1,674	(2,233)	(15,740)
Forward Contracts [Member] | Not Designated as Hedging Instrument, Economic Hedge [Member] | Other Non-Interest income [Member]
Derivative [Line Items]
Amount of gain or (loss) recognized in income on derivatives	57	60	(73)	(119)
Interest Rate Lock Commitments [Member] | Not Designated as Hedging Instrument, Economic Hedge [Member] | Other Non-Interest income [Member]
Derivative [Line Items]
Amount of gain or (loss) recognized in income on derivatives	$ 35	$ 133	$ 36	$ 465

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Commitments and Contingencies (Narrative) (Details) - USD ($) $ in Millions	Sep. 30, 2017	Dec. 31, 2016
Commitment And Contingencies [Line Items]
Loan commitments	$ 652.7	$ 602.2
Standby Letters of Credit [Member]
Commitment And Contingencies [Line Items]
Standby letters of credit	$ 9.5	$ 13.5

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Commitments and Contingencies (Schedule of Total Unfunded Commitments) (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Commitment And Contingencies [Line Items]
Total unfunded commitments	$ 662,185	$ 615,774
Commitments to fund loans [Member]
Commitment And Contingencies [Line Items]
Total unfunded commitments	168,632	149,391
Unfunded Commitment Line Of Credit [Member]
Commitment And Contingencies [Line Items]
Total unfunded commitments	484,037	452,851
Commercial And Standby Letters Of Credit [Member]
Commitment And Contingencies [Line Items]
Total unfunded commitments	$ 9,516	$ 13,532

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Fair Value Measurements - (Tables of Financial Instruments Measured At Fair Value on Recurring Basis) (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets at fair value	$ 822,779	$ 895,262
Total liabilities at fair value	5,427	3,305
Municipal [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets at fair value	1,499	3,648
Mortgage-Backed Securities (MBS) [Member] | Residential Mortgage Pass-Through Securities Issued or Guaranteed by U.S. Government Agencies or Sponsored Enterprises [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets at fair value	181,389	227,160
Mortgage-Backed Securities (MBS) [Member] | Other Residential MBS Issued or Guaranteed by U.S. Government Agencies or Sponsored Enterprises [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets at fair value	628,479	652,739
Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets at fair value	822,546	894,975
Total liabilities at fair value	5,418	3,279
Level 2 [Member] | Municipal [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets at fair value	1,499	3,648
Level 2 [Member] | Mortgage-Backed Securities (MBS) [Member] | Residential Mortgage Pass-Through Securities Issued or Guaranteed by U.S. Government Agencies or Sponsored Enterprises [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets at fair value	181,389	227,160
Level 2 [Member] | Mortgage-Backed Securities (MBS) [Member] | Other Residential MBS Issued or Guaranteed by U.S. Government Agencies or Sponsored Enterprises [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets at fair value	628,479	652,739
Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets at fair value	233	287
Total liabilities at fair value	9	26
Interest rate swap derivatives [Member] | Derivative [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets at fair value	11,179	11,428
Total liabilities at fair value	5,418	3,279
Interest rate swap derivatives [Member] | Level 2 [Member] | Derivative [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets at fair value	11,179	11,428
Total liabilities at fair value	5,418	3,279
Mortgage banking derivatives | Derivative [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets at fair value	233	287
Total liabilities at fair value	9	26
Mortgage banking derivatives | Level 3 [Member] | Derivative [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets at fair value	233	287
Total liabilities at fair value	$ 9	$ 26

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Fair Value Measurements - (Table of Changes in Level 3 Financial Instruments) (Details) - Derivative Financial Instruments Assets and Liabilities [Member] $ in Thousands	9 Months Ended
	Sep. 30, 2017 USD ($)
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance	$ 261
Realized gain (loss) included in earnings—net mortgage banking derivatives	(37)
Ending Balance	$ 224

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Fair Value Measurements - Additional Information (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	$ 3,120,543	$ 2,822,555	$ 2,860,921
Impairment on other real estate owned	766	262
Fair Value, Measurements, Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans	8,300	6,400
Nonrecurring Loans Reserves	$ 1,100	$ 1,500

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Fair Value Measurements - (Inputs Used to Determine Fair Values of Oreo are Considered Level 3 Inputs in Fair Value Hierarchy) (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Other Real Estate Owned [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of assets on a non-recurring basis	$ 12,330	$ 21,200
Losses From Fair Value Changes	(766)	262
Impaired loans [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of assets on a non-recurring basis	28,459	35,411
Losses From Fair Value Changes	$ (9,171)	$ 17,546

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Fair Value Measurements - (Table of Valuation Techniques and Unobservable Inputs Used in Valuation of Financial Instruments Falling Within Level 3 of Fair Value Hierarchy) (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2017	Dec. 31, 2016
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Total assets at fair value	$ 822,779	$ 895,262
Impaired loans [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Total assets at fair value	$ 28,459
Minimum | Appraised value [Member] | Impaired loans [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Appraised values Discount rate	0.00%
Maximum | Appraised value [Member] | Impaired loans [Member]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Appraised values Discount rate	25.00%

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Fair Value of Financial Instruments - (Schedule of Fair Value of Financial Instruments) (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016	Sep. 30, 2016	Dec. 31, 2015
ASSETS:
Cash and cash equivalents	$ 241,160	$ 152,736	$ 124,977	$ 166,092
Investment securities available-for-sale (at fair value)	812,051	884,232
Mortgage-backed securities-residential mortgage pass-through securities issued or guaranteed by U.S. Government agencies or sponsored enterprises held-to-maturity	275,370	332,505
Non-marketable securities	15,537	14,949
Loans held-for-sale	12,212	24,187
LIABILITIES:
Time deposits	1,133,167	1,172,046
Securities sold under agreements to repurchase	92,814	92,011
Federal Home Loan Bank advances	129,115	38,665
Residential Mortgage Pass-Through Securities Issued or Guaranteed by U.S. Government Agencies or Sponsored Enterprises [Member]
ASSETS:
Investment securities available-for-sale (at fair value)	181,389	227,160
Mortgage-backed securities-residential mortgage pass-through securities issued or guaranteed by U.S. Government agencies or sponsored enterprises held-to-maturity	217,431	263,411
Other Residential MBS Issued or Guaranteed by U.S. Government Agencies or Sponsored Enterprises [Member]
ASSETS:
Investment securities available-for-sale (at fair value)	628,479	652,739
Mortgage-backed securities-residential mortgage pass-through securities issued or guaranteed by U.S. Government agencies or sponsored enterprises held-to-maturity	57,939	69,094
Other Securities [Member]
ASSETS:
Investment securities available-for-sale (at fair value)	419	419
Municipal [Member]
ASSETS:
Investment securities available-for-sale (at fair value)	1,764	3,914
Carrying Amount [Member] | Level 1 [Member]
ASSETS:
Cash and cash equivalents	241,160	152,736
Carrying Amount [Member] | Level 2 [Member]
ASSETS:
Non-marketable securities	15,537	14,949
Loans held-for-sale	12,212	24,187
Accrued interest receivable	16,042	12,562
LIABILITIES:
Deposit transaction accounts	2,813,175	2,696,603
Time deposits	1,133,167	1,172,046
Securities sold under agreements to repurchase	92,814	92,011
Federal Home Loan Bank advances	129,115	38,665
Accrued interest payable	6,676	4,973
Carrying Amount [Member] | Level 3 [Member]
ASSETS:
Loans receivable, net	3,120,543	2,860,921
Carrying Amount [Member] | Residential Mortgage Pass-Through Securities Issued or Guaranteed by U.S. Government Agencies or Sponsored Enterprises [Member] | Level 2 [Member]
ASSETS:
Investment securities available-for-sale (at fair value)	181,389	227,160
Mortgage-backed securities-residential mortgage pass-through securities issued or guaranteed by U.S. Government agencies or sponsored enterprises held-to-maturity	217,431	263,411
Carrying Amount [Member] | Other Residential MBS Issued or Guaranteed by U.S. Government Agencies or Sponsored Enterprises [Member] | Level 2 [Member]
ASSETS:
Investment securities available-for-sale (at fair value)	628,479	652,739
Mortgage-backed securities-residential mortgage pass-through securities issued or guaranteed by U.S. Government agencies or sponsored enterprises held-to-maturity	57,939	69,094
Carrying Amount [Member] | Other Securities [Member] | Level 3 [Member]
ASSETS:
Investment securities available-for-sale (at fair value)	419	419
Carrying Amount [Member] | Municipal [Member] | Level 2 [Member]
ASSETS:
Municipal obligations	1,499	3,648
Carrying Amount [Member] | Municipal [Member] | Level 3 [Member]
ASSETS:
Municipal obligations	265	265
Estimated Fair Value [Member] | Level 1 [Member]
ASSETS:
Cash and cash equivalents	241,160	152,736
Estimated Fair Value [Member] | Level 2 [Member]
ASSETS:
Non-marketable securities	15,537	14,949
Loans held-for-sale	12,212	24,187
Accrued interest receivable	16,042	12,562
LIABILITIES:
Deposit transaction accounts	2,813,175	2,696,603
Time deposits	1,133,167	1,172,046
Securities sold under agreements to repurchase	92,814	92,011
Federal Home Loan Bank advances	130,300	39,324
Accrued interest payable	6,676	4,973
Estimated Fair Value [Member] | Level 3 [Member]
ASSETS:
Loans receivable, net	3,117,549	2,879,860
Estimated Fair Value [Member] | Residential Mortgage Pass-Through Securities Issued or Guaranteed by U.S. Government Agencies or Sponsored Enterprises [Member] | Level 2 [Member]
ASSETS:
Investment securities available-for-sale (at fair value)	181,389	227,160
Mortgage-backed securities-residential mortgage pass-through securities issued or guaranteed by U.S. Government agencies or sponsored enterprises held-to-maturity	218,786	264,862
Estimated Fair Value [Member] | Other Residential MBS Issued or Guaranteed by U.S. Government Agencies or Sponsored Enterprises [Member] | Level 2 [Member]
ASSETS:
Investment securities available-for-sale (at fair value)	628,479	652,739
Mortgage-backed securities-residential mortgage pass-through securities issued or guaranteed by U.S. Government agencies or sponsored enterprises held-to-maturity	56,822	67,711
Estimated Fair Value [Member] | Other Securities [Member] | Level 3 [Member]
ASSETS:
Investment securities available-for-sale (at fair value)	419	419
Estimated Fair Value [Member] | Municipal [Member] | Level 2 [Member]
ASSETS:
Municipal obligations	1,499	3,648
Estimated Fair Value [Member] | Municipal [Member] | Level 3 [Member]
ASSETS:
Municipal obligations	265	265
Interest rate swap derivatives [Member] | Carrying Amount [Member] | Level 2 [Member]
ASSETS:
Derivative asset	11,179	11,428
LIABILITIES:
Derivative liability	5,418	3,279
Interest rate swap derivatives [Member] | Estimated Fair Value [Member] | Level 2 [Member]
ASSETS:
Derivative asset	11,179	11,428
LIABILITIES:
Derivative liability	5,418	3,279
Mortgage banking derivatives | Carrying Amount [Member] | Level 3 [Member]
ASSETS:
Derivative asset	233	287
LIABILITIES:
Derivative liability	9	187
Mortgage banking derivatives | Estimated Fair Value [Member] | Level 3 [Member]
ASSETS:
Derivative asset	233	287
LIABILITIES:
Derivative liability	$ 9	$ 187

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Fair Value of Financial Instruments - (Additional Information) (Details)	9 Months Ended
	Sep. 30, 2017
Fair Value Of Financial Instruments [Abstract]
Residential mortgage loans held for sale period	45 days