Guaranty Bancorp 10-Q 31 Oct 17 2017 Q3 Quarterly report Financial data

Document And Entity Information

Document And Entity Information - shares	9 Months Ended
	Sep. 30, 2017	Oct. 27, 2017
Document And Entity Information [Abstract]
Entity Registrant Name	Guaranty Bancorp
Entity Central Index Key	1,324,410
Document Type	10-Q
Document Period End Date	Sep. 30, 2017
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		29,241,220
Document Fiscal Year Focus	2,017
Document Fiscal Period Focus	Q3
Trading Symbol	gbnk

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets - USD ($)		Sep. 30, 2017	Dec. 31, 2016
Assets
Cash and due from banks		$ 64,388,000	$ 50,111,000
Time deposits with banks		254,000	254,000
Securities available for sale, at fair value		298,483,000	324,228,000
Securities held to maturity (fair value of $257,571 and $239,404 at September 30, 2017 and December 31, 2016)		258,541,000	243,979,000
Bank stocks, at cost		19,435,000	22,649,000
Total investments		576,459,000	590,856,000
Loans held for sale		314,000	4,129,000
Loans, held for investment, net of deferred costs and fees		2,661,552,000	2,515,009,000
Less allowance for loan losses		(22,900,000)	(23,250,000)
Net loans, held for investment		2,638,652,000	2,491,759,000
Premises and equipment, net		63,280,000	67,390,000
Other real estate owned and foreclosed assets			569,000
Goodwill		56,404,000	56,404,000
Other intangible assets, net		13,348,000	15,317,000
Bank-owned life insurance		74,625,000	65,538,000
Other assets		22,322,000	24,100,000
Total assets		3,510,046,000	3,366,427,000
Deposits:
Noninterest-bearing demand		924,361,000	916,632,000
Interest-bearing demand and NOW		866,309,000	767,523,000
Money market		502,400,000	484,664,000
Savings		183,366,000	164,478,000
Time		421,624,000	365,787,000
Total deposits		2,898,060,000	2,699,084,000
Securities sold under agreement to repurchase		37,943,000	36,948,000
Federal Home Loan Bank line of credit borrowing		51,182,000	124,691,000
Federal Home Loan Bank term notes		70,000,000	72,477,000
Subordinated debentures, net		65,044,000	64,981,000
Interest payable and other liabilities		12,665,000	15,868,000
Total liabilities		3,134,894,000	3,014,049,000
Stockholders' equity:
Common stock	[1]	31,000	31,000
Additional paid-in capital - common stock		834,339,000	832,067,000
Accumulated deficit		(348,392,000)	(367,944,000)
Accumulated other comprehensive loss		(4,791,000)	(6,726,000)
Treasury stock, at cost, 2,402,027 and 2,361,882 shares, respectively		(106,035,000)	(105,050,000)
Total stockholders' equity		375,152,000	352,378,000
Total liabilities and stockholders' equity		$ 3,510,046,000	$ 3,366,427,000
[1]	Common stock-$0.001 par value; 40,000,000 shares authorized; 30,803,897 shares issued and 28,401,870 shares outstanding at September 30, 2017 (includes 476,549 shares of unvested restricted stock); 40,000,000 shares authorized; 30,695,886 shares issued and 28,334,004 shares outstanding at December 31, 2016 (includes 513,187 shares of unvested restricted stock).

Condensed Consolidated Balance3

Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Condensed Consolidated Balance Sheets [Abstract]
Securities held to maturity, Fair value	$ 257,571	$ 239,404
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized	40,000,000	40,000,000
Common stock, shares issued	30,803,897	30,695,886
Common stock, shares outstanding	28,401,870	28,334,004
Common stock, unvested restricted stock	476,549	513,187
Treasury stock, shares	2,402,027	2,361,882

Condensed Consolidated Statemen

Condensed Consolidated Statements Of Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Interest income:
Loans, including costs and fees	$ 30,902	$ 22,295	$ 87,270	$ 60,206
Investment securities:
Taxable	2,221	1,741	6,892	5,454
Tax-exempt	1,233	971	3,713	2,459
Dividends	275	237	1,011	829
Federal funds sold and other	57	98	76	105
Total interest income	34,688	25,342	98,962	69,053
Interest expense:
Deposits	1,939	1,228	5,262	3,299
Securities sold under agreement to repurchase	16	13	48	31
Borrowings	531	636	2,079	1,992
Subordinated debentures	868	715	2,568	1,165
Total interest expense	3,354	2,592	9,957	6,487
Net interest income	31,334	22,750	89,005	62,566
Provision for loan losses	497	27	708	53
Net interest income, after provision for loan losses	30,837	22,723	88,297	62,513
Noninterest income:
Deposit service and other fees	3,580	2,581	10,405	7,042
Investment management and trust	1,478	1,333	4,482	3,889
Increase in cash surrender value of life insurance	674	490	1,884	1,398
Loss on sale of securities	(86)	(66)	(86)	(122)
Gain on sale of SBA loans	143	208	971	472
Other	341	159	1,218	346
Total noninterest income	6,130	4,705	18,874	13,025
Noninterest expense:
Salaries and employee benefits	11,736	10,984	34,909	28,292
Occupancy expense	1,714	1,417	4,940	4,053
Furniture and equipment	974	750	2,894	2,281
Amortization of intangible assets	672	389	1,969	868
Other real estate owned, net	(20)	20	174	27
Insurance and assessments	642	608	1,995	1,818
Professional fees	929	962	3,155	2,725
Impairment of long-lived assets			224
Other general and administrative	5,160	3,494	12,579	9,486
Total noninterest expense	21,807	18,624	62,839	49,550
Income before income taxes	15,160	8,804	44,332	25,988
Income tax expense	5,106	3,039	14,313	8,682
Net income	$ 10,054	$ 5,765	$ 30,019	$ 17,306
Earnings per common share-basic:	$ 0.36	$ 0.25	$ 1.08	$ 0.80
Earnings per common share-diluted:	0.36	0.25	1.07	0.79
Dividends declared per common share:	$ 0.13	$ 0.12	$ 0.38	$ 0.35
Weighted average common shares outstanding-basic:	27,920,658	22,811,386	27,900,627	21,750,153
Weighted average common shares outstanding-diluted:	28,120,111	22,984,647	28,140,332	21,995,855

Condensed Consolidated Stateme5

Condensed Consolidated Statements Of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Condensed Consolidated Statements Of Comprehensive Income [Abstract]
Net income	$ 10,054	$ 5,765	$ 30,019	$ 17,306
Changes in net unrealized gains (losses) on available for sale securities during the period excluding the change attributable to available for sale securities reclassified to held to maturity	91	645	2,249	3,434
Changes in net unrealized gains (losses) on available for sale securities during the period excluding the change attributable to available for sale securities reclassified to held to maturity, Income tax effect	(35)	(245)	(855)	(1,305)
Change in unamortized loss on available for sale securities reclassified into held to maturity securities	120	105	365	326
Change in unamortized loss on available for sale securities reclassified into held to maturity securities, Income tax effect	(46)	(41)	(139)	(125)
Reclassification adjustment for net losses (gains) included in net income during the period	86	66	86	122
Reclassification adjustment for net losses (gains) included in net income during the period, Income tax effect	(33)	(25)	(33)	(46)
Change in fair value of derivatives during the period	33	379	(187)	(1,554)
Change in fair value of derivatives during the period, Income tax effect	(13)	(144)	71	591
Reclassification adjustment of losses on derivatives during the period	190	259	609	687
Reclassification adjustment of losses on derivatives during the period, Income tax effect	(72)	(98)	(231)	(261)
Other comprehensive income (loss)	321	901	1,935	1,869
Total comprehensive income	$ 10,375	$ 6,666	$ 31,954	$ 19,175

Condensed Consolidated Stateme6

Condensed Consolidated Statements Of Changes In Stockholders' Equity - USD ($) $ in Thousands	Common Stock Shares Outstanding [Member]	Common Stock and Additional Paid-in Capital [Member]	Treasury Stock [Member]	Accumulated Deficit [Member]	Accumulated Other Comprehensive Loss [Member]	Total
Balance at Dec. 31, 2015		$ 712,334	$ (103,743)	$ (382,147)	$ (4,805)	$ 221,639
Balance (in shares) at Dec. 31, 2015	21,704,852
Net income				17,306		17,306
Other comprehensive income					1,869	1,869
Issuance of common stock for acquisition of Home State Bancorp net of issuance costs		116,468				116,468
Issuance of common stock for acquisition of Home State Bancorp net of issuance costs (in shares)	6,533,756
Stock compensation awards, net of forfeitures (in shares)	167,664
Stock based compensation, net		2,304				2,304
Repurchase of common stock			(897)			(897)
Repurchase of common stock (in shares)	(57,165)
Dividends paid				(7,329)		(7,329)
Balance at Sep. 30, 2016		831,106	(104,640)	(372,170)	(2,936)	351,360
Balance (in shares) at Sep. 30, 2016	28,349,107
Net income						5,765
Other comprehensive income						901
Balance at Sep. 30, 2016		831,106	(104,640)	(372,170)	(2,936)	351,360
Balance (in shares) at Sep. 30, 2016	28,349,107
Balance at Dec. 31, 2016		832,098	(105,050)	(367,944)	(6,726)	$ 352,378
Balance (in shares) at Dec. 31, 2016	28,334,004					28,334,004
Net income				30,019		$ 30,019
Other comprehensive income					1,935	1,935
Stock compensation awards, net of forfeitures (in shares)	108,011
Stock based compensation, net		2,272				2,272
Repurchase of common stock			(985)			(985)
Repurchase of common stock (in shares)	(40,145)
Dividends paid				(10,467)		(10,467)
Balance at Sep. 30, 2017		834,370	(106,035)	(348,392)	(4,791)	$ 375,152
Balance (in shares) at Sep. 30, 2017	28,401,870					28,401,870
Net income						$ 10,054
Other comprehensive income						321
Balance at Sep. 30, 2017		$ 834,370	$ (106,035)	$ (348,392)	$ (4,791)	$ 375,152
Balance (in shares) at Sep. 30, 2017	28,401,870					28,401,870

Condensed Consolidated Stateme7

Condensed Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Cash flows from operating activities:
Net income	$ 30,019	$ 17,306
Reconciliation of net income to net cash from operating activities:
Depreciation and amortization	4,178	2,739
Net amortization (accretion) on investment and loan portfolios	(392)	593
Provision for loan losses	708	53
Impairment of long-lived assets	224
Stock compensation, net	2,272	2,304
Dividends on bank stocks	(362)	(459)
Increase in cash surrender value of life insurance	(1,587)	(1,121)
Gain on sale of securities and SBA loans	(885)	(350)
Gain on the sale of other assets	(271)	(14)
Origination of SBA loans with intent to sell	(5,413)	(4,510)
Proceeds from the sale of SBA loans originated with intent to sell	10,641	5,613
Loss, net and valuation adjustments on real estate owned	160	104
Net change in:
Interest receivable and other assets	1,433	817
Net deferred income tax assets	493	150
Interest payable and other liabilities	(2,804)	2,670
Net cash from operating activities	38,414	25,895
Activity in available for sale securities:
Sales, maturities, prepayments and calls	83,967	388,820
Purchases	(57,765)	(99,363)
Activity in held to maturity securities and bank stocks:
Maturities, prepayments and calls	18,431	20,521
Purchases	(30,184)	(46,305)
Loan originations, net of principal collections	(69,615)	(99,766)
Loan purchases	(79,154)	(52,068)
Purchase of bank-owned life insurance contracts	(7,500)	(15,000)
Proceeds from sale of other assets	1,463	2,204
Proceeds from sales of other real estate owned and foreclosed assets	514
Proceeds from sale of SBA and other loans transferred to held for sale	3,940	229
Additions to premises and equipment	(879)	(1,142)
Cash paid in acquisition, net of cash received		(23,930)
Net cash from investing activities	(136,782)	74,200
Cash flows from financing activities:
Net change in deposits	199,020	180,564
Repayment of Federal Home Loan Bank term notes	(2,409)
Net change in borrowings on Federal Home Loan Bank line of credit	(73,509)	(187,899)
Proceeds from Federal Home Loan Bank term advances		25,000
Proceeds from issuance of subordinated debt, net of issuance costs		39,199
Cash dividends on common stock	(10,467)	(7,329)
Net change in repurchase agreements and federal funds purchased	995	(10,527)
Repurchase of common stock	(985)	(897)
Payment of stock issuance costs related to acquisition		(1,009)
Net cash from financing activities	112,645	37,102
Net change in cash and cash equivalents	14,277	137,197
Cash and cash equivalents, beginning of period	50,111	26,711
Cash and cash equivalents, end of period	$ 64,388	$ 163,908

Organization, Operations And Ba

Organization, Operations And Basis Of Presentation	9 Months Ended
	Sep. 30, 2017
Organization, Operations And Basis Of Presentation [Abstract]
Organization, Operations And Basis Of Presentation	GUARANTY BANCORP AND SUBSIDIARIES Notes to Unaudited Condensed Consolidated Financial Statements  (1) Organization, Operations and Basis of Presentation  Guaranty Bancorp is a bank holding company registered under the Bank Holding Company Act of 1956, as amended, and headquartered in Colorado.  The Company’s principal business is to serve as a holding company for its bank subsidiary, Guaranty Bank and Trust Company, referred to as the “Bank”.  References to “Company,” “us,” “we,” and “our” refer to Guaranty Bancorp on a consolidated basis. References to “Guaranty Bancorp” or to the “holding company” refer to the parent company on a stand-alone basis.  The Bank is a full-service community bank offering an array of banking products and services to the communities it serves along the Front Range of Colorado including: accepting time and demand deposits and originating commercial loans, commercial and residential real estate loans, Small Business Administration (“SBA”) guaranteed loans and consumer loans. The Bank, together with its wholly owned subsidiary Private Capital Management, LLC (“PCM”), provides wealth management services, including private banking, investment management and trust services. On April 3, 2017, Cherry Hills Investment Advisors, Inc., a previous wholly owned subsidiary of the Bank, was consolidated into PCM. Substantially all of the Bank’s loans are secured by specific items of collateral, including business assets, commercial and residential real estate, which include land or improved land, and consumer assets. Commercial loans are expected to be repaid from cash flow from the operations of businesses that have taken out the loans. There are no significant concentrations of loans to any one industry or customer. On September 8, 2016, the Company completed the acquisition of Home State Bancorp (“Home State”), based in Loveland, Colorado, in exchange for a combination of Company stock and cash. The transaction enhanced the Company’s balance sheet liquidity and supports the Company’s objective of serving the banking needs of northern Colorado business and consumer customers.  (a) Basis of Presentation  The accounting and reporting policies of the Company conform to generally accepted accounting principles in the United States of America. All material intercompany balances and transactions have been eliminated in consolidation. The Company’s financial statements reflect all adjustments that are, in the opinion of management, necessary for a fair presentation of its financial position and results of operations for the periods presented. All such adjustments are of a normal and recurring nature. Subsequent events have been evaluated through the date of financial statement issuance.  Certain information and note disclosures normally included in consolidated financial statements, prepared in accordance with generally accepted accounting principles (“GAAP”) in the United States of America, have been condensed or omitted pursuant to the rules and regulations of the Securities and Exchange Commission (the “SEC”). The interim operating results presented in these financial statements are not necessarily indicative of operating results for the full year. For further information, refer to the consolidated financial statements and notes included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2016.  (b) Business Combinations  The Company accounts for acquisitions of businesses using the acquisition method of accounting. Under the acquisition method, assets acquired and liabilities assumed are recorded at their estimated fair value upon the date of acquisition. Management utilizes various valuation techniques including discounted cash flow analyses to determine the fair values of assets acquired and liabilities assumed. Any excess of purchase price over amounts allocated to the acquired assets, including identifiable intangible assets, and liabilities assumed is recorded as goodwill.  (c) Use of Estimates  The preparation of the consolidated financial statements, in conformity with U.S. GAAP, requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities as of the dates of the consolidated balance sheets and income and expense for the periods presented. Actual results could differ significantly from those estimates.  (d) Loans and Loan Commitments  The Company extends commercial, real estate and consumer loans to customers. A substantial portion of the loan portfolio consists of commercial and real estate loans throughout the Front Range of Colorado. The ability of the Company’s borrowers to honor their loan contracts is generally dependent upon the real estate and general economic conditions prevailing in Colorado, among other factors.  Loans acquired in a business combination , that on the date of acquisition reflected evidence of credit deterioration since origination and for which collection of all contractually required payments was not probable , were designated as purchased credit impaired or “PCI” loans. In the September 8, 2016 Home State transaction, the Company designated $2,108,000 of loans as PCI. As of September 30, 2017, $809,000 in PCI loans remained in the Company’s loan portfolio. Loans not designated as PCI (“Non-PCI” loans) comprise the significant majority of the Company’s loan portfolio and consist of internally originated loans in addition to acquired loans. Acquired Non-PCI loans were designated as such as of the date of acquisition for one of or both of the following reasons: (1) management considered the collection of all contractually required payments probable, and (2) the loan demonstrated no evidence of credit deterioration since origination.  Loans that management has the intent and ability to hold for the foreseeable future, or until maturity or payoff, are reported at their outstanding unpaid principal balances, adjusted for charge-offs, the allowance for loan losses, acquisition-related discounts and any deferred fees or costs. Acquired loans are recorded upon acquisition at fair value, with no associated allowance for loan loss. However, if subsequent to acquisition, the credit quality of an acquired loan deteriorates, an allowance may be required. Accounting for loans is performed consistently across all portfolio segments and classes.  A portfolio segment is defined in accounting guidance as the level at which an entity develops and documents a systematic methodology to determine its allowance for loan losses. A class is defined in accounting guidance as a group of loans having similar initial measurement attributes, risk characteristics and methods for monitoring and assessing risk.  Interest income is accrued on the unpaid principal balance of the Company’s loans. Loan origination fees, net of direct origination costs, are deferred and recognized as an adjustment to the related loan yield using the effective interest method without anticipating prepayments. Purchase discount or premium on acquired Non-PCI loans is recognized as an adjustment to interest income over the contractual life of such loans using the effective interest method, or taken into income when the related loans are paid off or sold. With respect to PCI loans, the “accretable yield”, calculated as the excess of undiscounted expected cash flows at acquisition over the fair value at acquisition, is accreted into income over the term of the loan assuming the amount and timing of cash flows are reasonably estimable.  The accrual of interest on loans is discontinued (and the loan is put on nonaccrual status) at the time the loan is 90 days past due unless the loan is well secured and in process of collection. The time at which a loan enters past due status is based on the contractual terms of the loan. In all cases, loans are placed on nonaccrual or charged-off prior to the date on which they would otherwise enter past due status if collection of principal or interest is considered doubtful. The interest on a nonaccrual loan is accounted for using the cost-recovery or cash-basis method until the loan qualifies for a return to the accrual-basis method. Under the cost-recovery method, interest income is not recognized until the loan balance is reduced to zero, with payments received being applied first to the principal balance of the loan. Under the cash-basis method, interest income is recognized when the payment is received in cash. A loan is returned to accrual status after the delinquent borrower’s financial condition has improved, when all the principal and interest amounts contractually due are brought current, and when the likelihood of the borrower making future timely payments is reasonably assured.  Financial instruments include off ‑balance sheet credit instruments, such as commitments to make loans and commercial letters of credit issued to meet customer financing needs. The face amount of each item represents the Company’s total exposure to loss with respect to the item before considering customer collateral or ability to repay. Such financial instruments are recorded when they are funded.  (e) Allowance for Loan Losses and Allowance for Unfunded Commitments  The allowance for loan losses, or “the allowance”, is a valuation allowance for probable incurred loan losses and is reported as a reduction of outstanding loan balances.  Management evaluates the amount of the allowance on a regular basis based upon its periodic review of the collectability of the Company’s loans. Factors affecting the colle ctability of the loans include the nature and volume of the loan portfolio, adverse situations that may affect borrowers’ ability to repay, estimated value of any underlying collateral, prevailing economic conditions and historical loss experience. This evaluation is inherently subjective as it requires estimates that are susceptible to significant revision as more information becomes available. Management maintains the allowance at a level that it deems appropriate to adequately provide for probable incurred losses in the loan portfolio and other extensions of credit. The Company’s methodology for estimating the allowance is consistent across all portfolio segments and classes of loans.  Loans deemed to be uncollectable are charged-off and deducted from the allowance. The Company’s loan portfolio primarily consists of non-homogeneous commercial and real estate loans where charge-offs are considered on a loan-by-loan basis based on the facts and circumstances, including management’s evaluation of collateral values in comparison to book values on collateral-dependent loans. Charge-offs on smaller balance unsecured homogenous type loans, such as overdrafts and ready reserves are recognized by the time the loan in question is 90 days past due. The provision for loan losses and recoveries on loans previously charged-off are added to the allowance.  The allowance consists of both specific and general components. The specific component relates to loans that are individually classified as impaired. All loans are subject to individual impairment evaluation should the pertinent facts and circumstances suggest that such evaluation is necessary. Factors considered by management in determining impairment include the loan’s payment status and the probability of collecting scheduled principal and interest payments when they become due. Loans that experience insignificant payment delays and payment shortfalls generally are not classified as impaired. A loan is considered impaired when, based on current information and events, it is probable that the Company will be unable to collect the scheduled payments of principal or interest when due according to the contractual terms of the original underlying loan agreement. Management determines the significance of payment delays and payment shortfalls on a case-by-case basis, taking into consideration all of the circumstances surrounding the loan and the borrower, including the length of the delay, the reasons for the delay, the borrower’s prior payment record and the amount of the shortfall in relation to the principal and interest owed. If a loan is impaired, a portion, if any, of the allowance is allocated so that the loan is reported at the present value of estimated future cash flows using the loan’s original contractual rate or at the fair value of collateral, less estimated selling costs, if repayment is expected solely from collateral. Troubled debt restructurings (“TDRs”) are separately identified for impairment disclosures. If a TDR is considered to be a collateral-dependent loan, impairment of the loan is measured using the fair value of the collateral, less estimated selling costs. Likewise, if a TDR is not collateral-dependent, impairment is measured using the present value of estimated future cash flows using the loan’s effective rate at inception. For TDRs that subsequently default, the Company determines the amount of reserve in accordance with its accounting policy for the allowance.  The general component of the allowance covers all other loans not specifically identified as impaired and is determined by calculating losses recognized by portfolio segment during the current credit cycle and adjusted based on management’s evaluation of various qualitative factors. In performing this calculation, loans are aggregated into one of three portfolio segments: Real Estate, Consumer and Commercial & Other. An assessment of risks impacting loans in each of these portfolio segments is performed and qualitative adjustment factors, which will adjust the historical loss rate, are estimated. These qualitative adjustment factors consider current conditions relative to conditions present throughout the current credit cycle in the following areas: credit quality, loan class concentration levels, economic conditions, loan growth dynamics and organizational conditions. The historical loss experience is adjusted for management’s estimate of the impact of these factors based on the risks present for each portfolio segment.  The Company recognizes a liability in relation to unfunded commitments that is intended to represent the estimated future losses on commitments. In calculating the amount of this liability, management considers the amount of the Company’s off-balance sheet commitments, estimated utilization factors and loan specific risk factors. The Company’s liability for unfunded commitments is calculated quarterly and the liability is included under “other liabilities” in the consolidated balance sheet.  (f) Goodwill and Other Intangible Assets  Goodwill was recorded in the Home State transaction and represents the excess of the purchase price over the fair value of acquired tangible assets, identifiable intangible assets and liabilities. Goodwill is assessed at least annually for impairment and any such impairment is recognized in the period identified.  Intangible assets acquired in a business combination are amortized over their estimated useful lives to their estimated residual values and evaluated for impairment whenever changes in circumstances indicate that such an evaluation is necessary.  Core deposit intangible assets (“CDI assets”) are recognized at the time of their acquisition based on valuations prepared by independent third parties or other estimates of fair value. In preparing such valuations, management considers variables such as deposit servicing costs, attrition rates and market discount rates. CDI assets are amortized to expense over their useful lives, ranging from 10 years to 15 years.  Customer relationship intangible assets are recognized at the time of their acquisition based upon management’s estimate of their fair value. In preparing their valuation, management considers variables such as growth in existing customer base, attrition rates and market discount rates. The c ustomer relationship intangible assets are amortized to expense over their estimated useful life, which has been estimated to be 10 years. The Company has recognized three customer relationship intangible assets as a result of the acquisitions of PCM on July 31, 2012, Cherry Hills Investment Advisers Inc. on July 16, 2014 and Home State on September 8, 2016.  (g) Derivative Instruments  The Company records all derivatives on its consolidated balance sheet at fair value. At the inception of a derivative contract, the Company designates the derivative as one of three types based on the Company’s intentions and belief as to the derivative’s likely effectiveness as a hedge. These three types are (1) a hedge of the fair value of a recognized asset or liability or of an unrecognized firm commitment (“fair value hedge”), (2) a hedge of a forecasted transaction or the variability of cash flows to be received or paid related to a recognized asset or liability (“cash flow hedge”), or (3) an instrument with no hedging designation (“stand-alone derivative”). To date, the Company has entered into cash flow hedges and stand-alone derivative agreements but has not entered into any fair value hedges. For a cash flow hedge, the gain or loss on the derivative is reported in other comprehensive income and is reclassified into earnings in the same periods during which the hedged transaction impacts earnings. Any portion of the cash flow hedge not deemed highly effective in hedging the changes in expected cash flows of the hedged item are recognized immediately in current earnings. Changes in the fair value of derivatives that do not qualify for hedge accounting are reported currently in earnings as noninterest income.  The Company formally documents the relationship between derivatives and hedged items, as well as the risk-management objective and the strategy for undertaking hedge transactions, at the inception of the derivative contract. This documentation includes linking cash flow hedges to specific assets and liabilities on the balance sheet or to specific firm commitments or forecasted transactions. The Company also formally assesses, both at the hedge’s inception and on an ongoing basis, whether the hedge is highly effective in offsetting changes in cash flows of the hedged items.  (h) Stock Incentive Plan  The Company’s Amended and Restated 2005 Stock Incentive Plan (the “Incentive Plan”) provided for the grant of equity-based awards representing up to a total of 1,700,000 shares of voting common stock to key employees, nonemployee directors, consultants and prospective employees. The Incentive Plan expired by its terms on April 4, 2015. At the Company’s annual meeting of stockholders on May 5, 2015, the Company’s stockholders approved the Guaranty Bancorp 2015 Long-Term Incentive Plan (the “2015 Plan”), which had been previously approved by the Company’s Board of Directors. The 2015 Plan provides for the grant of stock options, stock awards, stock unit awards, performance stock awards, stock appreciation rights and other equity-based awards representing up to a total of 935,000 shares of voting common stock to key employees, nonemployee directors, consultants and prospective employees. All awards issued under the Incentive Plan will remain outstanding in accordance with their terms despite the expiration of the Incentive Plan; however, any awards granted subsequent to the expiration of the Incentive Plan have been, and will continue to be, issued under the 2015 Plan.  As of September 30, 2017, the Company had granted stock awards under both the Incentive Plan and the 2015 Plan. The Company recognizes stock compensation expense for services received in a share-based payment transaction over the required service period, generally defined as the vesting period. For awards with graded vesting, compensation cost is recognized on a straight-line basis over the requisite service period for the entire award. The compensation cost of employee and director services received in exchange for stock awards is based on the grant date fair value of the award, as determined by quoted market prices. Stock compensation expense is recognized using an estimated forfeiture rate, adjusted as necessary to reflect actual forfeitures. The Company has issued stock awards that vest based on the passage of time over service periods of one to five years (in some cases vesting in annual installments, in other cases cliff vesting at the end of the service period) and other stock awards that vest contingent upon the satisfaction of certain performance conditions. The last date on which outstanding performance stock awards may vest is February 15, 2020 . Compensation cost related to the performance stock awards is recognized based on an evaluation of expected financial performance in comparison to established criteria . Should expectations of the Company’s future financial performance change, expense to be recognized in future periods could be impacted.  (i) Stock Repurchase Plan  On February 7, 2017, the Company’s Board of Directors authorized the extension of the expiration date of the Company’s share repurchase program originally announced in April 2014. Due to previous extensions the program was scheduled to expire on April 2, 2017, however, this most recent extension extends the expiration date of the repurchase program through April 2, 2018. Pursuant to the program, the Company may repurchase up to 1,000,000 shares of its voting common stock, par value $0.001 per share. As of the date of this filing, the Company had not repurchased any shares under the program.  (j) Income Taxes  Income tax expense is the total of the current year’s income tax payable or refundable and the increase or decrease in deferred tax assets and liabilities. Deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases and operating loss and tax credit carry forwards. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income in the period of the enactment date.  Deferred tax assets are reduced by a valuation allowance when, in the opinion of management, it is more likely than not that the Company will not realize some portion of or the entire deferred tax asset. At September 30, 2017 and December 31, 2016, the Company had a net deferred tax asset of $2,922,000 and $4,846,000 , respectively, which includes the deferred tax asset (liability) associated with the net unrealized loss (gain) on securities and interest rate swaps. After analyzing the composition of, and changes in, the deferred tax assets and liabilities and considering the Company’s forecasted future taxable income and various tax planning strategies, including the intent to hold the securities available for sale that were in a loss position until maturity, management determined that as of September 30, 2017, it was “more likely than not” that the net deferred tax asset would be fully realized. As a result, there was no valuation allowance with respect to the Company’s deferred tax asset as of September 30, 2017 or December 31, 2016.  The Company and the Bank are subject to U.S. federal income tax, State of Colorado income tax and income tax in other states. Generally, the Company is no longer subject to examination by Federal taxing authorities for years before 201 4 and is no longer subject to examination by the State o f Colorado for years before 2013 . The Company recognizes interest related to income tax matters as interest expense and penalties related to income tax matters as other noninterest expense. At September 30, 2017 and December 31, 2016, the Company did no t have any amounts accrued for interest or penalties.  (k) Earnings per Common Share  Basic earnings per common share represents the earnings allocable to common stockholders divided by the weighted average number of common shares outstanding during the period. Dilutive common shares that may be issued by the Company represent unvested stock awards subject to a service or performance condition.  Earnings per common share have been computed based on the following calculation of weighted average shares outstanding:      Three Months Ended September 30, Nine Months Ended September 30,  2017 2016 2017 2016   Average common shares outstanding 27,920,658 22,811,386 27,900,627 21,750,153  Effect of dilutive unvested stock grants (1) 199,453 173,261 239,705 245,702  Average shares outstanding for calculated  diluted earnings per common share 28,120,111 22,984,647 28,140,332 21,995,855  _____________    (1) Unvested stock grants representing 476,549 shares at September 30 , 2017 had a dilutive impact of 199,453 and 239,705 shares in the diluted earnings per share calculation for the three and nine months ended September 30 , 2017, respectively. Unvested stock grants representing 564,376 shares at September 30 , 2016 had a dilutive impact of 173,261 and 245,702 shares in the diluted earnings per share calculation for the three and nine months ended September 30 , 2016, respectively.   (l) Recently Issued Accounting Standards  Adoption of New Accounting Standards:  In March 2016, the Financial Accounting Standards Board (“ FASB ”) issued accounting standards update 2016-09 Compensation-Stock Compensation. The purpose of the update was to simplify the accounting for share-based payment transactions, including the income tax consequences of such transactions. Under the provisions of the update, the income tax consequences of excess tax benefits and deficiencies are recognized in income tax expense in the reporting period in which the awards vest. Previously, excess tax benefits or deficiencies impacted stockholder’s equity directly to the extent there was a cumulative excess tax benefit. In the event that a tax deficiency had occurred during the reporting period and a cumulative excess tax benefit did not exist, the tax deficiency was recognized in income tax expense under previous GAAP. The update also provides that entities may continue to estimate forfeitures in accounting for stock-based compensation or recognize them as they occur ; the Company has elected to continue to estimate forfeitures . Th e provisions of this update beca me effective for interim and annual periods beginning after December 15, 2016, however early adoption was permitted beginning in 2016. The Company adopted the provisions of the update in the fourth quarter 2016. During the first nine months of 2017 , $582,000 of excess tax benefits related to restricted stock vestings reduced income tax expense. Comparatively, excess tax benefits of $325,000 were retroactively recognized in the first nine months of 2016, upon adoption in the fourth quarter 2016.  Recently Issued but not yet Effective Accounting Standards:  In May 2014, the FASB issued accounting standards update 2014-09 Revenue from Contracts with Customers. The main provisions of the update require the identification of performance obligations within a contract and require the recognition of revenue based on a stand-alone allocation of contract revenue to each performance obligation. Performance obligations may be satisfied and revenue recognized over a period of time if: (i) the customer simultaneously receives and consumes the benefits provided by the entity’s performance as the entity performs, or (ii) the entity’s performance creates or enhances an asset that the customer controls as the asset is created or enhanced, or (iii) the entity’s performance does not create an asset with an alternative use to the entity and the entity has an enforceable right to payment for performance completed to date. For public business entities, the amendments of this update are effective beginning with interim and annual reporting periods beginning after December 15, 2017. Interest income earned on financial instruments is outside of the scope of the update, and as a result the impact of the update is limited to certain components of noninterest income. The Company’s noninterest income is generated by customer transactions or through the passage of time and as a result the pattern or timing of income recognition is not expected to be impacted under the update. The Company has elected to implement this update using modified retrospective application, which requires application to uncompleted contracts at the date of adoption. Under the modified retrospective transition method retrospective revisions to prior periods are not required, however, any difference in timing of revenue recognition on uncompleted contracts at adoption date is recorded in retained earnings as a cumulative adjustment. M anagement does not expect the requirements of this update to have a material impact on the Company’s financial position, results of operations or cash flows and has concluded that the most significant impact will be the disaggregated disclosure of certain components of noninterest income. In January 2016, the FASB released accounting standards update 2016-01 Recognition and Measurement of Financial Assets and Liabilities. The main provisions of the update are to eliminate the available for sale classification of accounting for equity securities and to adjust the fair value disclosures for financial instruments carried at amortized costs such that the disclosed fair values represent an exit price as opposed to an entry price. The provisions of this update will require that equity securities be carried at fair market value on the balance sheet and any periodic changes in value will be adjustments to the income statement. A practical expedient is provided for equity securities without a readily determinable fair value, such that these securities can be carried at cost less any impairment. The provisions of this update become effective for interim and annual periods beginning after December 15, 2017. The disclosure of fair value of the loan portfolio will be impacted as the fair value will be calculated using an exit price. Management does not expect the requirements of this update to have a material impact on the Company’s financial position, results of operations or cash flows.  In February 2016, the FASB issued accounting standards update 2016-02 Leases. The update requires all leases, with the exception of short-term leases that have contractual terms of no greater than one year, to be recorded on the balance sheet. Under the provisions of the update, leases classified as operating will be reflected on the balance sheet with the recognition of both a right-of-use asset and a lease liability. Under the update, a distinction will exist between finance and operating type leases and the rules for determining which classification a lease will fall into are similar to existing rules. For public business entities, the amendments of this update are effective for interim and annual periods beginning after December 15, 2018. The update requires a modified retrospective transition under which comparative balance sheets from the earliest historical period presented will be revised to reflect what the financials would have looked like were the provisions of the update applied consistently in all prior periods. Management is in the process of evaluating the impacts of the update on the Company’s financial position and does not expect the requirements of the update to have a material impact on the Company’s financial position, results of operations or cash flows. Based on leases outstanding at September 30, 2017, we anticipate total assets and total liabilities will increase between $9,000,000 and $11,000,000 as the result of additional leases being recognized on our balance sheet. Decisions to repurchase, modify, or renew leases prior to the implementation date will impact the results of the Company’s final analysis.  In June 2016, the FASB issued accounting standards update 2016-13 Financial Instruments - Credit Losses, commonly referred to as “CECL”. The provisions of the update eliminate the probable initial recognition threshold under current GAAP which requires reserves to be based on an incurred loss methodology. Under CECL, reserves required for financial assets measured at amortized cost will reflect an organization’s estimate of all expected credit losses over the contractual term of the financial asset and thereby require the use of reasonable and supportable forecasts to estimate future credit losses. Beca

Business Combinations

Business Combinations	9 Months Ended
	Sep. 30, 2017
Business Combinations [Abstract]
Business Combinations	 (2) Business Combination s  On July 18, 2017, the Company entered into an Agreement and Plan of Reorganization (the “Castle Rock Merger Agreement”) with Castle Rock Bank Holding Company (“Castle Rock”), parent company of Castle Rock Bank, a Colorado state chartered bank headquartered in Castle Rock, Colorado. The transaction closed on October 27, 2017. Additional information on the Castle Rock transaction is included in footnote 15 -Subsequent Events.  On March 16, 2016, the Company entered into an Agreement and Plan of Reorganization (the “Merger Agreement”) with Home State, parent company of Home State Bank, a Colorado state chartered bank headquartered in Loveland, Colorado, whereby Home State would merge into the Company. The transaction closed on September 8, 2016 with an aggregate transaction value of $152,478,000 . The Merger Agreement provided that, subject to certain conditions, Home State shareholders would receive 6,533,756 shares of Company voting common stock valued at $117,477,000 based on the Company’s closing stock price on September 8, 2016 of $17.98 , in addition to $35,001,000 in cash.  The Home State transaction enhanced the Company’s balance sheet liquidity and supported the Company’s objective of serving the banking needs of northern Colorado business and consumer customers.  Goodwill of $56,404,000 was recognized in the Home State transaction and represents expected synergies and cost savings resulting from combining the operations of Home State with those of the Company. Due to the tax-free structure of the transaction, the recognized goodwill was not deductible for tax purposes. The estimated fair value of assets acquired and liabilities assumed at acquisition were recorded on the Company’s balance sheet at the date of acquisition and subjected to limited measurement period adjustments in the fourth quarter 2016 as a result of receipt of final valuations. No additional adjustments of acquisition date fair values were recorded in the one-year measurement period following the Home State transaction.  The following table summarizes the estimated fair values of the assets acquired and liabilities assumed in the September 8, 2016 Home State transaction, and reflects all adjustments made to the fair value of the opening balance sheet through September 30, 2017:      Assets acquired:  (In thousands)  Cash and cash equivalents $ 11,849  Time deposits with banks 504  Securities available-for-sale 396,450  Securities held-to-maturity 850  Bank stocks 1,477  Net Loans 445,529  Premises and equipment, net 22,950  Other real estate owned 45  Goodwill 56,404  Other intangible assets, net 11,701  Other assets 8,118  Total assets acquired 955,877   Liabilities assumed:  Deposits 769,709  Securities sold under agreement to repurchase and federal funds purchased 19,985  Federal Home Loan Bank term notes 2,525  Federal Home Loan Bank line of credit borrowing 2,052  Other liabilities 9,128  Total liabilities assumed 803,399  Net Assets Acquired $ 152,478  Pre-tax merger expenses relating to the Castle Rock acquisition were $268,000 for the three and nine months ended September 30, 2017. No merger expenses relating to the Home State acquisition were incurred in the first nine months of 2017 . P re-tax merger expenses of $2,205,000 and $3,227 ,000 were included in the Company’s results of operations in the three and nine months ended September 30, 20 16, respectively.

Securities

Securities	9 Months Ended
	Sep. 30, 2017
Securities [Abstract]
Securities	 (3) Securities  The fair value of available for sale debt securities and the related gross unrealized gains and losses recognized in accumulated other comprehensive income (loss) (“AOCI”) were as follows at the dates presented :       September 30, 2017  Fair Value Gross Unrealized Gains Gross Unrealized Losses Amortized Cost  (In thousands)  Securities available for sale:  State and municipal $ 75,199 $ 256 $ (1,328) $ 76,271  Mortgage-backed - agency / residential 119,162 250 (2,434) 121,346  Corporate 88,299 556 (1,250) 88,993  Collateralized loan obligations 15,823 13 (40) 15,850  Total securities available for sale $ 298,483 $ 1,075 $ (5,052) $ 302,460      December 31, 2016  Fair Value Gross Unrealized Gains Gross Unrealized Losses Amortized Cost  (In thousands)  Securities available for sale:  State and municipal $ 81,608 $ 91 $ (2,542) $ 84,059  Mortgage-backed - agency / residential 129,832 347 (3,117) 132,602  Mortgage-backed - private / residential 265 - (6) 271  Corporate 86,246 288 (1,357) 87,315  Collateralized loan obligations 26,277 50 (66) 26,293  Total securities available for sale $ 324,228 $ 776 $ (7,088) $ 330,540  The carrying amount, unrecognized gains/losses and fair value of securities held to maturity were as follows at the dates presented:     Fair Value Gross Unrecognized Gains Gross Unrecognized Losses Amortized Cost  (In thousands)  September 30, 2017:  State and municipal $ 137,706 $ 1,305 $ (1,212) $ 137,613  Mortgage-backed - agency / residential 101,916 616 (1,744) 103,044  Asset-backed 16,749 102 (37) 16,684  Other 1,200 - - 1,200  $ 257,571 $ 2,023 $ (2,993) $ 258,541   December 31, 2016:  State and municipal $ 118,734 $ 745 $ (3,120) $ 121,109  Mortgage-backed - agency / residential 100,565 507 (2,590) 102,648  Asset-backed 18,905 9 (126) 19,022  Other 1,200 - - 1,200  $ 239,404 $ 1,261 $ (5,836) $ 243,979 The proceeds from sales and calls of securities and the associated gains are listed below:      Three Months Ended September 30, Nine Months Ended September 30,  2017 2016 2017 2016   (In thousands)  Proceeds $ 48,320 $ 317,630 $ 48,320 $ 370,111  Gross gains 254 1,434 254 2,486  Gross losses (340) (1,500) (340) (2,608)  Net tax (benefit) expense related to  gains (losses) on sale (33) (25) (33) (46)   The amortized cost and estimated fair value of available for sale and held to maturity debt securities by contractual maturity at September 30, 2017 are shown below. Expected maturities will differ from contractual maturities because borrowers may have the right to prepay obligations with or without prepayment penalties. Securities not due at a single maturity date are presented separately.    Available for Sale  Fair Value Amortized Cost  (In thousands)  Securities available for sale:  Due in one year or less $ 5,083 $ 5,047  Due after one year through five years 11,797 11,676  Due after five years through ten years 94,754 96,272  Due after ten years 51,864 52,269  Total AFS, excluding mortgage-backed (MBS)  and collateralized loan obligations 163,498 165,264  Mortgage-backed and collateralized  loan obligations 134,985 137,196  Total securities available for sale $ 298,483 $ 302,460       Held to Maturity  Fair Value Amortized Cost  (In thousands)  Securities held to maturity:  Due in one year or less $ 150 $ 150  Due after one year through five years 13,139 12,948  Due after five years through ten years 76,546 76,660  Due after ten years 49,071 49,055  Total HTM, excluding MBS and asset-backed 138,906 138,813  Mortgage-backed and asset-backed 118,665 119,728  Total securities held to maturity $ 257,571 $ 258,541    The following tables present the fair value and the unrealized loss on securities that were temporarily impaired as of September 30 , 2017 and December 31, 2016, aggregated by major security type and length of time in a continuous unrealized loss position:      September 30, 2017 Less than 12 Months 12 Months or More Total  Fair Value Unrealized Losses Fair Value Unrealized Losses Fair Value Unrealized Losses   (In thousands)  Description of securities:  Available for sale:  State and municipal $ 23,546 $ (247) $ 32,002 $ (1,081) $ 55,548 $ (1,328)  Mortgage-backed - agency /  residential 57,323 (1,086) 35,532 (1,348) 92,855 (2,434)  Corporate 38,940 (821) 10,762 (429) 49,702 (1,250)  Collateralized loan obligations 10,570 (40) - - 10,570 (40)   Held to maturity:  State and municipal 23,722 (382) 63,138 (1,556) 86,860 (1,938)  Mortgage-backed - agency /  residential 35,539 (1,312) 49,796 (1,006) 85,335 (2,318)  Asset-backed - - 16,749 (348) 16,749 (348)  Total temporarily impaired $ 189,640 $ (3,888) $ 207,979 $ (5,768) $ 397,619 $ (9,656)       December 31, 2016 Less than 12 Months 12 Months or More Total  Fair Value Unrealized Losses Fair Value Unrealized Losses Fair Value Unrealized Losses   (In thousands)  Description of securities:  Available for sale:  State and municipal $ 47,434 $ (2,542) $ - $ - $ 47,434 $ (2,542)  Mortgage-backed - agency /  residential 93,909 (2,782) 9,526 (335) 103,435 (3,117)  Mortgage-backed - private /  residential 265 (6) - - 265 (6)  Corporate 49,964 (1,042) 5,685 (315) 55,649 (1,357)  Collateralized loan obligations 9,077 (17) 5,488 (49) 14,565 (66)   Held to maturity:  State and municipal 90,959 (3,804) 596 (259) 91,555 (4,063)  Mortgage-backed - agency /  residential 99,920 (3,442) - - 99,920 (3,442)  Asset-backed 15,690 (542) 3,216 (98) 18,906 (640)  Total temporarily impaired $ 407,218 $ (14,177) $ 24,511 $ (1,056) $ 431,729 $ (15,233)  The table above presents unrealized losses on held to maturity securities since the date of each security ’s purchase, independent of the impact associated with changes in cost basis upon transfer from available for sale to held to maturity.  In determining whether or not there is an other-than-temporary-impairment (“OTTI”) for a security, management considers many factors, including: (i) the length of time for which and the extent to which the security’s fair value has been less than cost, (ii) the financial condition and near-term prospects of the security’s issuer, (iii) whether the decline in the security’s value was affected by macroeconomic conditions, and (iv) whether the Company intends to sell the security and whether it is more likely than not that the Company will be required to sell the security before a recovery in its fair value. The assessment of whether an OTTI exists involves a high degree of subjectivity and judgment and is based on the information available to management at a particular point in time. There were no accumulated credit losses on any of the Company’s securities as of September 30, 2017 or December 31, 2016.  At September 30, 2017 , there were 236 individual securities in an unrealized loss position, including 162 individual securities that had been in a continuous unrealized loss position for 12 months or longer. Management has evaluated these securities, in addition to the remaining 74 securities in an unrealized loss position, and has determined that the decline in value since their purchase dates was primarily attributable to fluctuations in market interest rates and does not reflect a decline in the underlying issuers’ ability to repay. At December 31, 2016 , there were 271 individual securities in an unrealized loss position, including 10 individual securities that had been in a continuous unrealized loss position for 12 months or longer. The total number of securities in an unrealized loss position decreased from 271 individual securities at December 31, 2016 to 236 securities at September 30, 2017, primarily as a result of fluctuation in market interest rates . At September 30, 2017 , the Company did not intend to sell, and did not consider it likely that it would be required to sell, any of these securities prior to recovery in their fair value.  The Company’s unrated and rated municipal bond securities, along with the Company’s other rated investment securities, are subject to an annual internal review process that management has historically performed in the fourth quarter. The review process includes a review of the securities’ issuers’ most recent financial statements, including an evaluation of the expected sufficiency of the issuers’ cash flows relative to their debt service requirements. In addition, management considers any interim information made available to it that would prompt the need for more frequent review. At September 30, 2017 and December 31, 2016, the Company’s unrated municipal bonds comprised approximately 4.6% and 16.9% , respectively, of the carrying value of the Company’s entire municipal bond portfolio. The decrease in the percentage of unrated municipal bonds in the Company’s municipal bond portfolio during the first nine months of 2017 was primarily attributable to the sale of a $24,115,000 unrated revenue bond in the third quarter 2017.  Securities with carrying values of $231,634,000 and $237,036,000 were pledged at September 30 , 2017 and December 31, 2016, respectively, as collateral for various lines of credit, public deposits and for other purposes as required or permitted by law. Certain mortgage backed securities with an aggregate market value of approximately $41,124,000 and $ 4 2,486,000 were pledged to secure overnight repurchase agreement borrowings as of September 30 , 2017 and December 31, 2016, respectively. Fluctuations in the fair value of these securities, and/or the fluctuation in the balance of customer repurchase agreements and or public deposits, may result in the need to pledge additional securities against these sources of funding. Management monitors the Bank’s collateral position with respect to repurchase agreement borrowings on a daily basis. 

Loans

Loans	9 Months Ended
	Sep. 30, 2017
Loans [Abstract]
Loans	(4) Loans  A summary of net loans held for investment by loan type at the dates indicated is as follows:      September 30, December 31,  2017 2016   (In thousands)  Commercial and residential real estate $ 1,892,828 $ 1,768,424  Construction 81,826 88,451  Commercial 449,450 432,083  Agricultural 15,824 16,690  Consumer 124,625 125,264  SBA 45,935 52,380  Other 51,004 31,778  Total gross loans 2,661,492 2,515,070  Deferred costs and (fees) 60 (61)  Loans, held for investment, net 2,661,552 2,515,009  Less allowance for loan losses (22,900) (23,250)  Net loans, held for investment $ 2,638,652 $ 2,491,759  In the first nine months of 2017, the Company purchased $79.2 million of performing loans included in commercial and residential real estate, commercial and consumer loans in the above table. During 2016, excluding the Home State transaction, the Company purchased $109.5 million in performing loans included in commercial and residential real estate and consumer loans in the above table. The Company recognized a $271,000 gain on the sale of its $2.0 million credit card loan portfolio during the first quarter 2017. Activity in the allowance for loan losses for the period indicated is as follows:      Three Months Ended September 30, Nine Months Ended September 30,  2017 2016 2017 2016   (In thousands)  Balance, beginning of period $ 23,125 $ 23,050 $ 23,250 $ 23,000  Provision for loan losses 497 27 708 53  Loans charged-off (970) (72) (1,433) (431)  Recoveries on loans previously  charged-off 248 295 375 678  Balance, end of period $ 22,900 $ 23,300 $ 22,900 $ 23,300  The Company’s additional disclosures relating to loans and the allowance for loan losses are broken out into two subsets, portfolio segment and class. The portfolio segment level is defined as the level where financing receivables are aggregated in developing the Company’s systematic method for calculating its allowance for loan losses. The class level is the second level at which credit information is presented and represents the categorization of financing related receivables at a slightly less aggregated level than the portfolio segment level. Because d ata presented according to class is dependent upon the underlying purpose of the loan, whereas loan data organized by portfolio segment is determined by the loan’s underlying collateral, disclosures broken out by portfolio segment versus class may not be in agreement. The disclosures in this footnote include both Non-PCI and PCI loans. As of September 30, 2017, PCI loans acquired in the Home State transaction are not considered material and as a result separate PCI disclosures are not included.  The following tables provide detail for the ending balances in the Company’s allowance for loan losses and loans held for investment, broken down by portfolio segment as of the dates indicated. In addition, the tables also provide a roll-forward by portfolio segment of the allowance for loan losses for the three and nine months ended September 30, 2017 and S eptembe r 30, 2016. The detail provided for the amount of the allowance for loan losses and loans individually versus collectively evaluated for impairment (i.e., the specific component versus the general component of the allowance for loan losses) corresponds to the Company’s systematic methodology for estimating its allowance for loan losses.     Real Estate Consumer and Installment Commercial and Other Total  (In thousands)  Allowance for Loan Losses  Balance as of January 1, 2017 $ 20,082 $ 105 $ 3,063 $ 23,250  Charge-offs (383) (92) (958) (1,433)  Recoveries 86 11 278 375  Provision (credit) (915) 159 1,464 708  Balance as of September 30, 2017 $ 18,870 $ 183 $ 3,847 $ 22,900    Balance as of July 1, 2017 $ 19,400 $ 193 $ 3,532 $ 23,125  Charge-offs (250) (75) (645) (970)  Recoveries 21 4 223 248  Provision (credit) (301) 61 737 497  Balance as of September 30, 2017 $ 18,870 $ 183 $ 3,847 $ 22,900      Balances at September 30, 2017:   Allowance for Loan Losses  Individually evaluated $ 27 $ - $ 671 $ 698  Collectively evaluated 18,843 183 3,176 22,202  Total $ 18,870 $ 183 $ 3,847 $ 22,900   Loans  Individually evaluated $ 10,155 $ 1 $ 5,577 $ 15,733  Collectively evaluated 2,129,684 60,482 455,653 2,645,819  Total $ 2,139,839 $ 60,483 $ 461,230 $ 2,661,552      Real Estate Consumer and Installment Commercial and Other Total  (In thousands)  Allowance for Loan Losses  Balance as of January 1, 2016 $ 20,306 $ 71 $ 2,623 $ 23,000  Charge-offs (213) (12) (206) (431)  Recoveries 235 13 430 678  Provision (credit) (143) (15) 211 53  Balance as of September 30, 2016 $ 20,185 $ 57 $ 3,058 $ 23,300    Allowance for Loan Losses  Balance as of July 1, 2016 $ 20,171 $ 75 $ 2,804 $ 23,050  Charge-offs (9) (5) (58) (72)  Recoveries 150 2 143 295  Provision (credit) (127) (15) 169 27  Balance as of September 30, 2016 $ 20,185 $ 57 $ 3,058 $ 23,300      Balances at December 31, 2016:   Allowance for Loan Losses  Individually evaluated $ 29 $ - $ 193 $ 222  Collectively evaluated 20,053 105 2,870 23,028  Total $ 20,082 $ 105 $ 3,063 $ 23,250   Loans  Individually evaluated $ 22,728 $ 2 $ 7,645 $ 30,375  Collectively evaluated 2,024,524 55,182 404,928 2,484,634  Total $ 2,047,252 $ 55,184 $ 412,573 $ 2,515,009   The following tables provide additional detail with respect to impaired loans broken out according to class as of the dates indicated. The recorded investment included in the following table represents customer balances net of any partial charge-offs recognized on the loans, net of any deferred fees and costs. The unpaid balance represents the recorded balance prior to any partial charge-offs. Interest income recognized year-to-date may exclude an immaterial amount of interest income on matured loans that are 90 days or more past due, but that are in the process of being renewed and thus are still accruing.      September 30, 2017 Recorded Investment Unpaid Balance Related Allowance Average Recorded Investment YTD Interest Income Recognized YTD  (In thousands)  Impaired loans with no related allowance:  Commercial and residential real estate $ 9,974 $ 10,479 $ - $ 17,713 $ 1,967  Construction - - - - -  Commercial 843 1,336 - 856 126  Consumer 17 19 - 18 -  Other 571 1,412 - 775 18  Total $ 11,405 $ 13,246 $ - $ 19,362 $ 2,111   Impaired loans with a related allowance:  Commercial and residential real estate $ 27 $ 135 $ 1 $ 962 $ -  Construction - - - - -  Commercial 2,186 2,262 69 4,126 54  Consumer 579 665 8 366 16  Other 1,536 1,591 620 793 4  Total $ 4,328 $ 4,653 $ 698 $ 6,247 $ 74   Total impaired loans:  Commercial and residential real estate $ 10,001 $ 10,614 $ 1 $ 18,675 $ 1,967  Construction - - - - -  Commercial 3,029 3,598 69 4,982 180  Consumer 596 684 8 384 16  Other 2,107 3,003 620 1,568 22  Total impaired loans $ 15,733 $ 17,899 $ 698 $ 25,609 $ 2,185      December 31, 2016 Recorded Investment Unpaid Balance Related Allowance Average Recorded Investment YTD Interest Income Recognized YTD  (In thousands)  Impaired loans with no related allowance:  Commercial and residential real estate $ 20,477 $ 21,140 $ - $ 13,875 $ 1,911  Construction - - - 592 -  Commercial 222 229 - 243 16  Consumer 18 19 - 117 2  Other 817 1,625 - 493 -  Total $ 21,534 $ 23,013 $ - $ 15,320 $ 1,929   Impaired loans with a related allowance:  Commercial and residential real estate $ 1,767 $ 1,890 $ 19 $ 8,590 $ 44  Construction - - - - -  Commercial 6,371 6,423 155 2,937 309  Consumer 306 383 9 389 9  Other 397 444 39 348 -  Total $ 8,841 $ 9,140 $ 222 $ 12,264 $ 362   Total impaired loans:  Commercial and residential real estate $ 22,244 $ 23,030 $ 19 $ 22,465 $ 1,955  Construction - - - 592 -  Commercial 6,593 6,652 155 3,180 325  Consumer 324 402 9 506 11  Other 1,214 2,069 39 841 -  Total impaired loans $ 30,375 $ 32,153 $ 222 $ 27,584 $ 2,291   The gross year-to-date interest income that would have been recorded had the nonaccrual loans been current in accordance with their original terms was $173,000 for the nine months ended September 30 , 2017 and $ 209,000 for the nine months ended September 30 , 2016 . The gross quarter-to-date interest income that would have been recorded had the nonaccrual loans been current in accordance with their original terms was $24,000 for the third quarter 2017 and $77,000 for the third quarter 2016. During the three and nine months ended September 30 , 2016, approximately $83,000 and $332,000 , respectively, in cash-basis interest income was recognized on the Company’s largest nonaccrual loan. This loan was moved into accruing status in September 2016 and was paid off in the third quarter 2017. As a result of the payoff of this nonaccrual loan in the third quarter 2017, $892,000 in interest income was recognized as a result of the previous application of payments to principal while on nonaccrual. No cash-basis interest income was recognized in the first nine months of 2017.  The following tables summarize, by class, loans classified as past due in excess of 30 days or more, in addition to those loans classified as nonaccrual:     September 30, 2017 30-89 Days Past Due 90 Days + Past Due and Still Accruing Nonaccrual Total Nonaccrual and Past Due Total Loans, Held for Investment  (In thousands)  Commercial and residential  real estate $ 113 $ - $ 1,722 $ 1,835 $ 1,892,870  Construction - - - - 81,828  Commercial 8,879 - 844 9,723 449,460  Consumer 137 - 264 401 124,628  Other - - 1,914 1,914 112,766  Total $ 9,129 $ - $ 4,744 $ 13,873 $ 2,661,552      December 31, 2016 30-89 Days Past Due 90 Days + Past Due and Still Accruing Nonaccrual Total Nonaccrual and Past Due Total Loans, Held for Investment  (In thousands)  Commercial and residential  real estate $ 1,258 $ - $ 2,835 $ 4,093 $ 1,768,381  Construction - - - - 88,449  Commercial 37 - 1,094 1,131 432,072  Consumer 42 - 201 243 125,261  Other - - 1,117 1,117 100,846  Total $ 1,337 $ - $ 5,247 $ 6,584 $ 2,515,009   The Company categorizes loans into risk categories based on relevant information about the ability of a particular borrower to service its debt, such as: current financial information, historical payment experience, credit documentation, public information and current economic trends, among other factors. The Company uses the following definitions for risk ratings, which are consistent with the definitions used in supervisory guidance:  Substandard . Loans classified as substandard are inadequately protected by the current net worth and paying capacity of the obligor or of the collateral, if any, pledged to secure the loan. Loans so classified have a well-defined weakness or weaknesses that jeopardize the collection of the debt. They are characterized by the distinct possibility that the Company will sustain some loss if the deficiencies are not corrected.  Doubtful . Loans classified as doubtful have all the weaknesses inherent in those classified as substandard, with the added characteristic that the weaknesses make collection or liquidation in full, on the basis of currently existing facts, conditions and values, highly questionable and improbable.  Loans not meeting the criteria above are considered to be non-classified loans.  The following tables provide detail for the risk categories of loans, by class of loans, based on the most recent credit analysis performed as of the dates indicated:      September 30, 2017 Commercial & Residential Real Estate Construction Commercial Consumer Other Total  (In thousands)  Non-classified $ 1,880,451 $ 81,826 $ 438,512 $ 124,248 $ 108,269 $ 2,633,306  Substandard 12,377 - 10,938 377 4,494 28,186  Doubtful - - - - - -  Subtotal 1,892,828 81,826 449,450 124,625 112,763 2,661,492  Deferred costs and fees 42 2 10 3 3 60  Loans, held for investment, net $ 1,892,870 $ 81,828 $ 449,460 $ 124,628 $ 112,766 $ 2,661,552      December 31, 2016 Commercial & Residential Real Estate Construction Commercial Consumer Other Total  (In thousands)  Non-classified $ 1,742,974 $ 88,451 $ 427,278 $ 124,932 $ 98,561 $ 2,482,196  Substandard 25,450 - 4,805 332 2,287 32,874  Doubtful - - - - - -  Subtotal 1,768,424 88,451 432,083 125,264 100,848 2,515,070  Deferred fees and costs (43) (2) (11) (3) (2) (61)  Loans, held for investment, net $ 1,768,381 $ 88,449 $ 432,072 $ 125,261 $ 100,846 $ 2,515,009  The book balance of TDRs at September 30 , 2017 and December 31, 2016, was $ 12,405,000 and $ 25,219,000 , respectively. Management established approximately $141,000 and $ 74,000 in specific reserves for these loans as of September 30 , 2017 and December 31, 2016, respectively. The Company had an additional $3,101,000 and $2,238,000 committed on loans classified as TDRs at September 30 , 2017 and December 31, 2016, respectively.  During the nine months ended September 30 , 2017, the terms of 23 loans totaling $4,543,000, were modified in troubled debt restructurings. The modification of the terms of such loans included 12 restructurings of payment terms and 11 loan renewals with terms more favorable to the borrowers than would otherwise be available based on the borrower's financial strength. During the three months ended September 30 , 2017, the terms of four loans totaling $475,000 , were modified in troubled debt restructurings. The modification of the terms of such loans included two restructurings of payment terms and two loan renewals with terms more favorable to the borrowers than would otherwise be available based on the borrower's financial strength.  During the nine months ended September 30 , 2016, the terms of three loans totaling $4,765,000 were modified in troubled debt restructurings. The modification of the terms of such loans included two restructurings of payment terms and one renewal of a loan with a stated interest rate below market. During the three months ended September 30 , 2016, the terms of a single loan with a balance of $2,900,000 were modified in troubled debt restructurings. There were no material charge-offs or provisions recorded during the three and nine months ended September 30 , 2017 or September 30 , 2016 on loans designated as TDRs.  For reporting purposes, a loan is considered to be in payment default once it is 90 days contractually past due under the modified terms. There were no defaults on TDRs during the nine months ended September 30 , 2017 or September 30 , 2016.

Goodwill And Other Intangible A

Goodwill And Other Intangible Assets	9 Months Ended
	Sep. 30, 2017
Goodwill And Other Intangible Assets [Abstract]
Goodwill And Other Intangible Assets	 (5) Goodwill and Other Intangible Assets  The Company recognized $56,404,000 in goodwill as a result of the Home State transaction on September 8, 2016. Subsequent changes to estimates of acquisition date fair value would impact the amount recognized as goodwill. As outlined in footnote 2 – Business Combinations, limited measurement period adjustments were recognized in the fourth quarter 2016 as a result of receipt of final valuations related to the Home State transaction. No other measurement period adjustments were made in the one-year measurement period following the Home State transaction.  Other intangible assets with finite lives are amortized over their respective estimated useful lives to their estimated residual values. As of September 30, 2017, the Company had intangible assets comprised of its core deposit intangible assets and customer relationship intangible assets.  The following table presents the gross amounts of core deposit intangible assets and customer relationship intangible assets and the related accumulated amortization at the dates indicated:        September 30, December 31,  Useful Life 2017 2016   (In thousands)  Core deposit intangible assets 10 - 15 years $ 74,087 $ 74,087  Core deposit intangible assets accumulated amortization (64,642) (63,112)  Core deposit intangible assets, net $ 9,445 $ 10,975   Customer relationship intangible assets 10 years 6,243 6,243  Customer relationship intangible assets accumulated amortization (2,340) (1,901)  Customer relationship intangible assets, net $ 3,903 $ 4,342   Total other intangible assets, net $ 13,348 $ 15,317 

Borrowings

Borrowings	9 Months Ended
	Sep. 30, 2017
Borrowings [Abstract]
Borrowings	 (6) Borrowings  At September 30 , 2017 , the Company’s outstanding borrowings were $ 121,182,000 as compared to $ 197,168,000 at December 31, 2016. These borrowings at September 30 , 2017 consisted of $70 ,000,000 in term notes and $51,182,000 of advances on our line of credit, both with the Federal Home Loan Bank (the “FHLB”). At December 31, 2016, outstanding borrowings consisted of $72,477,000 of term notes and $124,691,000 in advances on our line of credit, both with the FHLB.  The interest rate on the FHLB line of credit varies with the federal funds rate and was 1.28 % at September 30 , 2017 . The Company has three term notes with the FHLB. The first is a fixed interest rate $20,000,000 term note at 2.52% that is payable at its matu rity date of January 23, 2018 , with a prepayment penalty if paid prior to maturity; it is convertible to floating rate on pred etermined conversion dates at the discretion of the FHLB. If the note is converted by the FHLB, the Bank has the option to prepay the note without penalty. If the note is not converted by the FHLB, the note continues to be convertible quarterly thereafter, with the option to convert to floating rate at the discretion of the FHLB. Additionally, the Company had two $25,000,000 variable rate term notes that mature on March 7, 2018 and August 3, 2018 and carry an interest rate that resets quarterly. As of September 30 , 2017, the rates on our variable rate term notes were set at 1.28% and 1.37% , respectively.  The Company has an advance, pledge and security agreement with the FHLB and had pledged qualifying loans in the amount of $ 9 86,585,000 at September 30 , 2017 an d $ 854,057,000 at December 31, 2016. Total borrowing capacity with the FHLB resulting from the pledged loans was $690,755,000 at September 30, 2017 and $597,202,000 at December 31, 2016. The maximum credit allowance for future borrowings, including term notes and advances on the line of credit, was $ 568,240,000 at September 30 , 2017 and $ 400,102,000 at December 31, 2016.  In April 2017, the holding company renewed its agreement for a $10,000,000 secured line of credit with Wells Fargo Bank, National Association. The holding company’s stock in the Bank is pledged as collateral to the line of credit. The line of credit matures on March 16, 2018. Under the credit agreement, the Company elects a fixed or floating interest rate on each advance. As of September 30, 2017, no amounts had been borrowed on the Wells Fargo line of credit. 

Subordinated Debentures And Tru

Subordinated Debentures And Trust Preferred Securities	9 Months Ended
	Sep. 30, 2017
Subordinated Debentures And Trust Preferred Securities [Abstract]
Subordinated Debentures and Trust Preferred Securities	(7) Subordinated Debentures and Trust Preferred Securities  At September 30 , 2017, the Company’s outstanding subordinated debentures (the “Debentures”) consisted of $65,774,000 in debt, partially offset by $730,000 in debt issuance costs. At December 31, 2016 , the Company’s outstanding Debentures consisted of $65,774,000 in debt, partially offset by $793,000 in debt issuance costs. As of September 30 , 2017 , the Company's Debentures bore a weighted average cost of funds of 5.12% .  The Company’s Debentures were issued in three separate series. The first two issuances have maturities of 30 years from the date of issuance. These two issuances of Debentures were issued to trusts established by the Company, which in turn issued $ 25,000,000 of trust preferred securities (“TruPS”). Generally, and with certain limitations, the Company is permitted to call the Debentures subsequent to the first five or ten years, as applicable, after issuance, if certain conditions are met, or at any time upon the occurrence and continuation of certain changes in either the tax treatment or the capital treatment of the trusts, the Debentures or the preferred securities. The Guaranty Capital Trust III TruPS became callable at each quarterly interest payment date starting on July 7, 2008. The CenBank Trust III TruPS became callable at each quarterly interest payment date starting on April 15, 2009.  The third issuance was executed on July 18, 2016 in anticipation of the Home State transaction, in order to fund the cash consideration to be paid to Home State shareholders in conjunction with the transaction. The issuance was comprised of $ 40,000,000 of 5.75% Fixed-to-Floating Rate Subordinated Notes (the “Notes”) due July 20, 2026. The Notes initially bear a fixed interest rate of 5.75% per annum, payable semi-annually in arrears. On July 20, 2021, and, thereafter, the interest on the Notes will be payable quarterly in arrears, at an annual floating rate equal to three-month LIBOR as determined by the applicable quarterly period, plus 4.73% .  As of September 30 , 2017, the Company was in compliance with all financial covenants of the Debentures.  The Company had accrued, unpaid interest on its Debentures of approximately $726,000 at September 30 , 2017 and approximately $1,286,000 at December 31, 2016. Interest payable on Debentures is included in interest payable and other liabilities on the consolidated balance sheets.  The Company is not considered the primary beneficiary of the trusts that issued the TruPS (variable interest entities); therefore, the trusts are not consolidated in the Company’s financial statements and the Debentures are shown as liabilities. The Company’s investment in the common stock of each trust is included in other assets in the Company’s consolidated balance sheets. Although the securities issued by each of the trusts are not included as a component of stockholders’ equity in the consolidated balance sheets, they are treated as capital for regulatory purposes. Specifically, under applicable regulatory guidelines, the $25,000,000 of TruPS issued by the trusts qualify as Tier 1 capital, up to a maximum of 25 % of capital on an aggregate basis. Any amount that exceeds 25 % qualifies as Tier 2 capital. At September 30 , 2017, the full $ 25,000,000 of the TruPS qualified as Tier 1 capital. The $40,000,000 issuance from July 2016 qualifies for inclusion in Tier 2 capital.  Under the Dodd-Frank Act and a joint rule from the Federal Reserve Board, the Office of the Comptroller of the Currency, and the FDIC, certain TruPS are no longer eligible to be included as Tier 1 capital for regulatory purposes. However, an exception to this statutory prohibition applies to securities issued prior to May 19, 2010 by bank holding companies with less than $ 15 billion of total assets. As we have less than $ 15 billion in total assets and issued all of our TruPS prior to May 19, 2010, we expect that our TruPS will continue to be eligible to be treated as Tier 1 capital, subject to other rules and limitations.  The following table summarizes the terms of each outstanding subordinated debenture issuance at September 30, 2017 (dollars in thousands):    Date Issued Amount Maturity Date Call Date * Fixed or Variable Rate Adjuster Current Rate Next Rate Reset Date**   CenBank Trust III 4/8/2004 15,464 4/15/2034 1/15/2018 Variable LIBOR + 2.65 % 3.95 % 1/15/2018  Guaranty Capital Trust III 6/30/2003 10,310 7/7/2033 1/7/2018 Variable LIBOR + 3.10 % 4.40 % 1/7/2018  Subordinated Note 7/18/2016 40,000 7/20/2026 N/A Fixed LIBOR + 4.73 % 5.75 % 7/20/2021 * Call date represents the earliest or next date the Company can call the debentures. ** On October 7, 2017 , the rate on the Guaranty Capital Trust III subordinated debentures reset to 4.46% . On October 15, 2017, the rate on the CenBank Trust III subordinated debentures reset to 4.01% . The subordinated notes issued July 18, 2016 are fixed at 5.75% until July 20, 2021 at which point the notes convert to floating rate at three-month LIBOR plus 4.73% .

Commitments

Commitments	9 Months Ended
	Sep. 30, 2017
Commitments [Abstract]
Commitments	 (8) Commitments  The Bank enters into credit-related financial instruments with off-balance sheet risk in the normal course of business to meet the financing needs of its customers. These financial instruments include commitments to extend credit, standby letters of credit and commercial letters of credit. Such commitments involve, to varying degrees, elements of credit and interest rate risk in excess of the amount recognized in the consolidated balance sheets.  The Bank’s exposure to credit loss is represented by the contractual amount of these commitments. The Bank follows the same credit policies in making commitments, including obtaining collateral, if necessary, as it does for on-balance sheet instruments.  At the dates indicated, the following financial instruments were outstanding whose contract amounts represented credit risk:     September 30, 2017 December 31, 2016   (In thousands)  Commitments to extend credit:  Variable $ 470,152 $ 436,546  Fixed 105,198 95,607  Total commitments to extend credit $ 575,350 $ 532,153   Standby letters of credit $ 12,694 $ 10,292  At September 30 , 2017 , the rates on the fixed rate commitments to extend credit ranged from 2.90 % to 6.75 %.  A commitment to extend credit is an agreement to lend to a customer as long as there is no violation of any condition established in the underlying contract. Commitments generally have fixed expiration dates or other termination clauses and may require payment of a fee. Commitments may expire without being fully drawn upon. Therefore, the total commitment amounts do not necessarily represent future cash requirements. Off-balance sheet risk to credit loss exists up to the face amount of these instruments, although material losses are not anticipated.  A commitment to extend credit under an overdraft protection agreement is a commitment for a possible future extension of credit to an existing deposit customer. These lines of credit are uncollateralized and usually do not contain a specified maturity date and may not be drawn upon to the total extent to which the Bank is committed.  Standby letters of credit are conditional commitments issued by the Bank to guarantee the performance of a customer to a third party. These letters of credit are primarily issued to support public and private borrowing arrangements. A majority of letters of credit issued have expiration dates within one year. The credit risk involved in issuing letters of credit is essentially the same as that involved in extending loan facilities to customers. The Bank holds collateral supporting those commitments if deemed necessary.

Fair Value Measurements And Fai

Fair Value Measurements And Fair Value Of Financial Instruments	9 Months Ended
	Sep. 30, 2017
Fair Value Measurements And Fair Value Of Financial Instruments [Abstract]
Fair Value Measurements and Fair Value of Financial Instruments	 (9) Fair Value Measurements and Fair Value of Financial Instruments  Fair value is the exchange price that would be received for an asset or paid to transfer a liability (exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. There are three levels of inputs that may be used to measure fair values:  Level 1 - Unadjusted quoted prices in active markets that are accessible at the measurement date for identical, unrestricted assets.  Level 2 - Significant other observable inputs other than Level 1 prices such as quoted prices in markets that are not active, quoted prices for similar assets or other inputs that are observable, either directly or indirectly, for substantially the full term of the asset.  Level 3 - Significant unobservable inputs that reflect a reporting entity’s own assumptions about the assumptions that market participants would use in pricing an asset or liability.  A financial instrument’s level within the fair value hierarchy is based on the lowest level of input that is significant to the fair value measurement. Transfers of financial instruments between levels within the fair value hierarchy are recognized on the date management determines that the underlying circumstances or assumptions have changed.  Fair values of our securities are determined through the utilization of evaluated pricing models that vary by asset class and incorporate available market information (Level 2). The evaluated pricing models apply available information, as applicable, through processes such as benchmark curves, benchmarking of like securities, sector groupings and matrix pricing to prepare evaluations. These models assess interest rate impact, develop prepayment scenarios and take into account market conventions. For securities where routine valuation techniques are not used, management utilizes a discounted cash flow model with market-adjusted discount rates or other unobservable inputs to estimate fair value. Due to the lack of ratings available on these securities, management determined that a relationship to other benchmark quoted securities was unobservable, and as a result, these securities should be classified as Level 3 (Level 3 inputs). The valuation of the Company’s Level 3 bonds is highly sensitive to changes in unobservable inputs.  Currently, the Company uses interest rate swaps to help manage interest rate risk. The fair values of interest rate swaps are determined using the market standard methodology of netting the discounted future fixed cash payments (or receipts) and the discounted expected variable cash receipts (or payments). The variable cash receipts (or payments) are based on the expectation of future interest rates (forward curves) derived from observed market interest rate curves (Level 2 inputs). The Company considers the value of the swaps to be sensitive to fluctuations in interest rates.  Financial Assets and Liabilities Measured on a Recurring Basis  Assets and liabilities measured at fair value on a recurring basis are summarized below:     Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Balance  (In thousands)  Assets/(Liabilities) at September 30, 2017  State and municipal securities $ - $ 67,798 $ 7,401 $ 75,199  Mortgage-backed securities – agency /  residential - 119,162 - 119,162  Corporate securities - 88,299 - 88,299  Collateralized loan obligations - 15,823 15,823  Interest rate swaps - cash flow hedge - (1,507) - (1,507)   Assets/(Liabilities) at December 31, 2016  State and municipal securities $ - $ 49,856 $ 31,752 $ 81,608  Mortgage-backed securities – agency /  residential - 129,832 - 129,832  Mortgage-backed securities – private /  residential - 265 - 265  Corporate securities - 86,246 - 86,246  Collateralized loan obligations - 26,277 26,277  Interest rate swaps - cash flow hedge - (1,929) - (1,929)   There were no transfers of financial assets and liabilities among Level 1 , Level 2 and Level 3 during the nine months ended September 30 , 2017 .  The tables below present a reconciliation and income statement classification of gains and losses for all assets measured at fair value on a recurring basis using significant unobservable inpu ts (Level 3) for the three and nine months ended September 30 , 2017 and September 30, 2016 :      State and Municipal Securities  Three Months Ended September 30, 2017 Nine Months Ended September 30, 2017   (In thousands)  Beginning balance $ 31,595 $ 31,752  Total unrealized gains (losses) included in:  Net income 1 5  Other comprehensive income (loss) - -  Sales, calls and prepayments (24,195) (24,356)  Transfers in and (out) of Level 3 - -  Balance end of period $ 7,401 $ 7,401       State and Municipal Securities  Three Months Ended September 30, 2016 Nine Months Ended September 30, 2016   (In thousands)  Beginning balance $ 31,909 $ 32,040  Total unrealized gains (losses) included in:  Net income 2 5  Other comprehensive income (loss) - -  Sales, calls and prepayments (81) (215)  Acquisition of Level 3 security 131 131  Transfers in and (out) of Level 3 - -  Balance end of period $ 31,961 $ 31,961  For the three and nine months ended September 30 , 2017 and September 30 , 2016 , there was no other comprehensive income or loss for assets measured at fair value on a recurring basis using significant unobservable inputs (Level 3) as a result of consistent mark-to-market valuation. For the three and nine months ended September 30 , 2017 and September 30 , 2016 , the amounts included in net income in the above tables include accretion of any discount on these Level 3 bonds.  The following tables present quantitative information about Level 3 fair value measurements on the Company’s state and municipal securities at September 30, 2017 and December 31, 2016:      September 30, 2017 Fair Value Valuation Technique Unobservable Inputs Range  (In thousands)  State and municipal securities $ 7,401 discounted cash flow discount rate 2.25% - 2.75%  Total $ 7,401       December 31, 2016 Fair Value Valuation Technique Unobservable Inputs Range  (In thousands)  State and municipal securities $ 31,752 discounted cash flow discount rate 2.29% -4.75%  Total $ 31,752   Financial Assets and Liabilities Measured on a Nonrecurring Basis  Financial assets and liabilities measured at fair value on a nonrecurring basis were not material as of September 30 , 2017 and December 31, 2016.  Nonfinancial Assets and Liabilities Measured on a Nonrecurring Basis  Nonfinancial assets and liabilities measured at fair value on a nonrecurring basis were not material as of September 30 , 2017 and December 31, 2016.  Fair Value of Financial Instruments  The estimated fair values, and related carrying amounts, of the Company’s financial instruments are as follows:      Fair Value Measurements at September 30, 2017:  Carrying Amount Level 1 Level 2 Level 3 Total  (In thousands)  Financial assets:  Cash and cash equivalents $ 64,388 $ 64,388 $ - $ - $ 64,388  Time deposits with banks 254 254 - - 254  Securities available for sale 298,483 - 291,082 7,401 298,483  Securities held to maturity 258,541 - 255,012 2,559 257,571  Bank stocks 19,435 n/a n/a n/a n/a  Loans held for sale 314 345 - - 345  Loans held for investment, net 2,638,652 - - 2,615,217 2,615,217  Accrued interest receivable 10,868 - 10,868 - 10,868   Financial liabilities:  Deposits $ 2,898,060 $ - $ 2,895,570 $ - $ 2,895,570  Federal funds purchased and sold under  agreements to repurchase 37,943 - 37,943 - 37,943  Short-term borrowings 51,182 - 51,182 - 51,182  Subordinated debentures 65,044 - - 61,004 61,004  Long-term borrowings 70,000 - 70,008 - 70,008  Accrued interest payable 1,194 - 1,194 - 1,194  Interest rate swap - cash flow hedge 1,507 - 1,507 - 1,507        Fair Value Measurements at December 31, 2016:  Carrying Amount Level 1 Level 2 Level 3 Total  (In thousands)  Financial assets:  Cash and cash equivalents $ 50,111 $ 50,111 $ - $ - $ 50,111  Time deposits with banks 254 254 - - 254  Securities available for sale 324,228 - 292,476 31,752 324,228  Securities held to maturity 243,979 - 236,857 2,547 239,404  Bank stocks 22,649 n/a n/a n/a n/a  Loans held for sale 4,129 4,542 - - 4,542  Loans held for investment, net 2,491,759 - - 2,504,144 2,504,144  Accrued interest receivable 9,825 - 9,825 - 9,825   Financial liabilities:  Deposits $ 2,699,084 $ - $ 2,696,766 $ - $ 2,696,766  Federal funds purchased and sold under  agreements to repurchase 36,948 - 36,948 - 36,948  Short-term borrowings 124,691 - 124,691 - 124,691  Subordinated debentures 64,981 - - 60,048 60,048  Long-term borrowings 72,477 - 72,769 - 72,769  Accrued interest payable 1,661 - 1,661 - 1,661  Interest rate swap - cash flow hedge 1,929 - 1,929 - 1,929  The fair value of a financial instrument is the current amount that would be exchanged between willing parties, other than in a forced liquidation. Fair value is best determined based upon quoted market prices. 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. Those techniques are significantly affected by the assumptions used, including the discount rate and estimates of future cash flows. Accordingly, the fair value estimates may not be realized in an immediate settlement of the instrument.  Certain financial instruments and all nonfinancial instruments are excluded from the disclosure requirements. Therefore, the aggregate fair value amounts presented may not necessarily represent the underlying fair value of the Company.  The following methods and assumptions are used by the Company in estimating fair value disclosures for financial instruments:  (a) Cash and Cash Equivalents  The carrying amounts of cash and short-term instruments approximate fair values (Level 1).  (b) Securities and Bank Stocks  Fair values for securities available for sale and held to maturity are generally determined through the utilization of evaluated pricing models that vary by asset class and incorporate available market information (Level 2). The evaluated pricing models apply available information, as applicable, through processes such as benchmark curves, benchmarking of like securities, sector groupings and matrix pricing to prepare evaluations. These models assess interest rate impact, develop prepayment scenarios and take into account market conventions. For positions that are not traded in active markets or are subject to transfer restrictions (i.e., bonds valued with Level 3 inputs), management uses a combination of reviews of the underlying financial statements, appraisals and management’s judgment regarding credit quality and intent to sell in order to determine the value of the bond.  It is not practical to determine the fair value of bank stocks due to restrictions placed on the transferability of FHLB stock, Federal Reserve Bank stock and Bankers’ Bank of the West stock. These three stocks comprise the majority of the balance of the Company’s bank stocks .  (c) Loans Held for Investment  For variable rate loans that reprice frequently and with no significant change in credit risk, fair values are based on carrying values (Level 3). Fair values for other loans (e.g., commercial real estate and investment property mortgage loans and commercial loans) are estimated using discounted cash flow analyses, using interest rates currently being offered for loans with similar terms to borrowers of similar credit quality (Level 3). Impaired loans are valued at the lower of cost or fair value when specific reserves are attributed to these loans because the present value of expected cash flows or the net realizable value of collateral is less than the impaired loan’s recorded investment. The methods utilized to estimate the fair value of loans do not necessarily represent an exit price.  (d) Loans Held for Sale  Loans held for sale are carried at the lower of cost or fair value, with fair value determined by the sales price agreed upon in negotiation with the purchaser (Level 1).  (e) Deposits  The fair values of demand deposits (e.g., interest and non-interest checking, passbook savings and certain types of money market accounts) are, by definition, equal to the amount payable on demand at the reporting date (i.e., their carrying amount) (Level 2). The carrying amounts of variable rate, fixed-term money market accounts and certificates of deposit approximate their fair values at the reporting date (Level 2). Fair values for fixed rate certificates of deposit are estimated using a discounted cash flow calculation that applies interest rates currently being offered on certificates to a schedule of aggregated expected monthly maturities on time deposits (Level 2).  (f) Short-term Borrowings  The carrying amounts of federal funds purchased, borrowings under repurchase agreements, and other short-term borrowings maturing within 90 days approximate their fair values (Level 2).  (g) Long-term Borrowings  The fair values of the Company’s long-term borrowings are estimated using discounted cash flow analyses based on the Company’s current incremental borrowing rates for similar types of borrowing arrangements (Level 2).  (h) Subordinated Debentures  The fair values of the Company’s subordinated debentures are estimated using discounted cash flow analyses based on the Company’s current incremental borrowing rates for similar types of borrowing arrangements (Level 3).  (i) Accrued Interest Receivable/Payable  The carrying amounts of accrued interest approximate fair value (Level 2).  (j) Interest Rate Swaps, net  The fair value of interest rate swaps are determined using the market standard methodology of netting the discounted future fixed cash payments (or receipts) and the discounted expected variable cash receipts (or payments). The variable cash receipts (or payments) are based on the expectation of future interest rates (forward curves) derived from observed market interest rate curves (Level 2).  (k) Off-balance Sheet Instruments  Fair values for off-balance sheet, credit-related financial instruments are based on fees currently charged to enter into similar agreements, taking into account the remaining terms of the agreements and the counterparties’ credit standing. The fair value of commitments is not material.

Derivatives And Hedging Activit

Derivatives And Hedging Activities	9 Months Ended
	Sep. 30, 2017
Derivatives And Hedging Activities [Abstract]
Derivatives And Hedging Activities	 (10) Derivatives and Hedging Activities  The Company is exposed to certain risks arising from both its business operations and economic conditions. The Company principally manages its exposures to a wide variety of business and operational risks through management of its core business activities. The Company utilizes derivative financial instruments to assist in the management of interest rate risk, primarily helping to secure long-term borrowing rates. Specifically, the Company enters into derivative financial instruments to manage exposures that arise from business activities that result in the payment or receipt of future known and uncertain cash amounts, the value of which are determined by interest rates. The Company’s derivative financial instruments are used to manage differences in the amount, timing and duration of the Company’s known or expected cash payments or receipts principally related to certain variable-rate borrowings. The Company does not use derivatives for trading or speculative purposes.  The table below presents the fair value of the Company’s derivative financial instruments as well as their classification on the consolidated balance sheet as of September 30 , 2017 and December 31, 2016 :      Balance Fair Value  Sheet September 30, December 31,  Location 2017 2016   (In thousands)  Derivatives designated as hedging instruments  Assets:  Interest rate swaps Other assets $ - $ -  Liabilities:  Interest rate swaps Other liabilities $ 1,507 $ 1,929  The Company’s objectives in using interest rate derivatives are to add stability and predictability to interest expense and to manage the Company’s exposure to interest rate movements. To accomplish these objectives, the Company primarily uses interest rate swaps as part of its interest rate risk management strategy. For hedges of the Company’s variable-rate borrowings, interest rate swaps designated as cash flow hedges involve the receipt of variable amounts from a counterparty in exchange for the Company making fixed payments. As of September 30 , 2017 , the Company had two forward-starting interest rate swaps with an aggregate notional amount of $50,000,000 that were each designated as cash flow hedges associated with the Company’s forecasted variable-rate borrowings. The first $25,000,000 swap became effective in June 2015 at a fixed rate of 2.46% and matures in June 2020. The second $25,000,000 swap became effective in March 2016 at a fixed rate of 3.00% and matures in March 2021.  Summary information about the interest-rate swaps designated as cash flow hedges as of Septembe r 30, 2017 and December 31, 2016 is included in the table below:     September 30, 2017 December 31, 2016   (Dollars in thousands)  Notional amounts $ 50,000 $ 50,000  Weighted average pay rates 2.73 % 2.73 %  Weighted average receive rates 3 month LIBOR 3 month LIBOR  Weighted average maturity 3.1 years 3.9 years  Unrealized gains (losses) $ (1,507) $ (1,929)   The effective portion of changes in the fair value of derivatives designated and that qualify as cash flow hedges is recorded in AOCI and is subsequently reclassified into earnings in the period that the hedged forecasted transaction affects earnings. The ineffective portion of the change in fair value of the derivatives is recognized directly in earnings. The Company’s cash flow hedges are used to hedge the forecasted variable cash outflows associated with forecasted issuances of FHLB advances. During the nine months ended September 30, 2017 and September 30 , 2016 , the income statement effect of hedge ineffectiveness was not material.  Amounts reported in AOCI related to derivatives will be reclassified to interest expense as interest payments are made on the Company’s variable-rate liabilities. Management expects that, during the next 12 months, approximately $598,000 will be reclassified from AOCI into interest expense.  The Company executes interest rate swaps with commercial banking customers to facilitate their respective risk management strategies. Those interest rate swaps are simultaneously hedged by offsetting interest rate swaps that the Company executes with another 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 customer swaps and the offsetting swaps are recognized directly in earnings. The impact of these customer interest rate swaps on the Company’s financial statements was immaterial for the periods covered by this report.  The table below presents the effect of the Company’s derivative financial instruments on both comprehensive income and net income for the three and nine months ended September 30, 2017 and September 30, 2016 :      Income Three Months Ended Nine Months Ended  Interest Rate Swaps with Statement September 30, September 30,  Hedge Designation Location 2017 2016 2017 2016   (In thousands)  Gain or (loss) recognized in OCI on  derivative - net of tax Not applicable $ 20 $ 235 $ (116) $ (963)  (Gain) or loss reclassified from  accumulated OCI into income  (effective portion) - net of tax Interest expense 118 161 378 426  The Company has agreements with its derivative counterparties that contain a cross-default provision whereby if the Company defaults on any of its indebtedness, 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 has minimum collateral posting thresholds with certain of its derivative counterparties and as of September 30, 2017 had posted $3,814,000 against its obligations under these agreements. 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.

Accumulated Other Comprehensive

Accumulated Other Comprehensive Income	9 Months Ended
	Sep. 30, 2017
Accumulated Other Comprehensive Income [Abstract]
Accumulated Other Comprehensive Income	 (11) Accumulated Other Comprehensive Income  The following table summarizes the changes within each classification of accumulated other comprehensive income (loss) (“AOCI” ) net of tax for the three and nine months ended September 30, 2017 and September 30, 2016:      Unrealized Gains and Losses on Available for Sale Securities Unrealized Gains and Losses on Held to Maturity Securities Unrealized Gains and Losses on Cash Flow Hedges Total  (In thousands)  Balance, July 1, 2016 $ (39) $ (1,340) $ (2,458) $ (3,837)  Other comprehensive income (loss)  before reclassifications, net of tax 400 - 235 635  Net unrealized losses on securities transferred  from available for sale, to held to maturity  net of tax - - - -  Amounts reclassified from accumulated  other comprehensive income (loss), net of tax 41 64 161 266  Net other comprehensive income (loss) 441 64 396 901  Balance, September 30, 2016 $ 402 $ (1,276) $ (2,062) $ (2,936)   Balance, January 1, 2016 $ (1,803) $ (1,477) $ (1,525) $ (4,805)  Other comprehensive income (loss)  before reclassifications, net of tax 2,129 - (963) 1,166  Net unrealized losses on securities transferred  from available for sale, to held to maturity  net of tax - - - -  Amounts reclassified from accumulated  other comprehensive income (loss), net of tax 76 201 426 703  Net other comprehensive income (loss) 2,205 201 (537) 1,869  Balance, September 30, 2016 $ 402 $ (1,276) $ (2,062) $ (2,936)   Balance, July 1, 2017 $ (2,575) $ (1,526) $ (1,011) $ (5,112)  Other comprehensive income (loss)  before reclassifications, net of tax 56 - 20 76  Net unrealized losses on securities transferred  from available for sale, to held to maturity  net of tax - - - -  Amounts reclassified from accumulated  other comprehensive income (loss), net of tax 53 74 118 245  Net other comprehensive income (loss) 109 74 138 321  Balance, September 30, 2017 $ (2,466) $ (1,452) $ (873) $ (4,791)   Balance, January 1, 2017 $ (3,913) $ (1,678) $ (1,135) $ (6,726)  Other comprehensive income (loss)  before reclassifications, net of tax 1,394 - (116) 1,278  Net unrealized losses on securities transferred  from available for sale, to held to maturity  net of tax - - - -  Amounts reclassified from accumulated  other comprehensive income (loss), net of tax 53 226 378 657  Net other comprehensive income (loss) 1,447 226 262 1,935  Balance, September 30, 2017 $ (2,466) $ (1,452) $ (873) $ (4,791)   The following table summarizes the significant amounts reclassified out of each compo nent of AOCI for the three and nine months ended September 30, 2017 and September 30, 2016:         Details about Affected Income Statement  AOCI Components Amount Reclassified from AOCI Line Item  Three Months Ended Nine Months Ended  September 30, September 30,  2017 2016 2017 2016  (In thousands)  Unrealized gains and losses on  available for sale securities $ 86 $ 66 $ 86 $ 122 (Gain) loss on the sale of securities  (33) (25) (33) (46) Income tax effect  $ 53 $ 41 $ 53 $ 76 Net income  Unrealized gains and losses on  held to maturity securities $ 120 $ 105 $ 365 $ 326 Interest income  (46) (41) (139) (125) Income tax effect  $ 74 $ 64 $ 226 $ 201 Net income  Unrealized gains and losses on  cash flow hedges $ 190 $ 259 $ 609 $ 687 Interest expense  (72) (98) (231) (261) Income tax effect  $ 118 $ 161 $ 378 $ 426 Net income   Total reclassifications  for the period $ 245 $ 266 $ 657 $ 703 Net income 

Stock-Based Compensation

Stock-Based Compensation	9 Months Ended
	Sep. 30, 2017
Stock-Based Compensation [Abstract]
Stock-Based Compensation	 (12) Stock-Based Compensation  Under the Company’s Incentive Plan, which expired by its terms on April 4, 2015, the Company’s Board of Directors had the authority to grant stock-based compensation awards prior to the plan’s expiration. Under the 2015 Plan, which was approved by the Company’s stockholders at the May 5, 2015 annual meeting, the Company’s Board of Directors maintains the authority to grant stock-based compensation awards to nonemployee directors, key employees, consultants and prospective employees.  S tock-based compensation awards issuable under the 2015 Plan include, and that were issuable under the Incentive Plan , included, the grant of stock-based compensation awards in the form of options, restricted stock awards, restricted stock unit awards, performance stock awards, stock appreciation rights and other equity based awards. Likewise, the Incentive Plan provided for, and the 2015 Plan provides, that eligible participants may be granted shares of Company common stock that are subject to forfeiture until the grantee vests in the stock award based on the established conditions, which may include service conditions, established performance measures or both.  Prior to the vesting of stock awards that are subject to a service vesting condition, each grantee has the rights of a stockholder with respect to voting the shares of stock represented by the award. The grantee is not entitled to dividend rights with respect to the shares of stock until vesting occurs. Prior to vesting of the stock awards with performance vesting conditions, each grantee has the rights of a stockholder with respect to voting of the shares of stock represented by the award. The recipient is generally not entitled to dividend rights with respect to unvested shares. Other than the stock awards with service and performance-based vesting conditions, no other grants have been made under the Incentive Plan or the 2015 Plan.  Under the provisions of the 2015 Plan and the Incentive Plan, grants of stock-based compensation awards of 935,000 and 1,700,000 shares , respectively, were authorized , subject to adjustments upon the occurrence of certain events. As of September 30, 2017 , there were 253 ,180 and 2 23,369 outstanding awards under the 2015 Plan and the Incentive Plan, respectively. As of September 30, 2017 , there were 618,765 shares remaining available for grant under the 2015 Plan.  Of the 476,549 shares represented by unvested awards at September 30, 2017 , approximately 461 ,000 shares are expected to vest. At September 30, 2017, the re were 290 ,368 shares of restricted stock outstanding that were subject to a performance condition. As of September 30, 2017 , management expects that approximately 282,000 of these shares will vest and that the remaining shares will expire unvested. The performance shares that are expected to vest relate to awards granted to various key employees from March 2014 through May 2017. The vesting of these performance shares is contingent upon meeting certain return on average asset performance measures. The performance-based shares awarded in 2014, 2015, 2016 and 2017 each include a “threshold” and “target” performance level, with vesting determined based on where actual performance falls in relation to the numeric range represented by these performance criteria. As of September 30, 2017 , management expected that all of the performance awards made in 2014, 2015, 2016 and 2017 not forfeited from a failure by the grantee to provide the requisite service will vest, which is consistent with the level of expense currently being recognized over the vesting period. Should this expectation change, the recognition of compensation expense in future periods could be impacted.  A summary of the status of unearned stock awards and the change during the nine months ended September 30 , 2017 is presented in the table below:     Shares Weighted Average Fair Value on Award Date  Unearned at January 1, 2017 513,187 $ 14.39  Awarded 114,302 24.89  Forfeited (6,291) 18.66  Vested (144,649) 14.07  Unearned at September 30, 2017 476,549 $ 16.95  The Company recognized $ 2,272,000 and $ 2,304,000 in stock-based compensation expense for servi ces rendered for the nine months ended September 30, 2017 and September 30, 2016 , respectively. The income tax benefit recognized on share-based compensation recorded during the nine months ended September 30, 2017 and September 30, 2016 , was $864,000 and $876,000 , respectively. The income tax benefit recognized on share-based compensation recorded during the three months ended September 30, 2017 and September 30, 2016 , was $293,000 and $281,000 , respectively. In addition to the tax benefit on recorded share-based compensation expense, the Company recognized an excess tax benefit of $582,000 and $325,000 during the nine months ended Septe mber 30 , 2017 and September 30, 2016, respectively. Likewise , the excess tax benefit recognized during the third quarter 2017 and 2016 was $22,000 and $5,000 , respectively . The excess tax benefit represents the tax effect of the appreciation of the stock price on vested restricted stock between the grant date and the vesting date multiplied by the number of shares vested during the period. The grant date fair value of restricted stock awards granted in the nine months ended September 30, 2017 and September 30, 2016 was $2,845,000 and $2,963, 000 , respectively. The fair value of awards that vested in the nine months ended September 30, 2017 and September 30, 2016 was approximately $3,567,000 and $3,053,000 , respectively . At September 30 , 2017 , compensation cost of $ 4,185,000 related to unvested awards not yet recognized is expected to be recognized over a weighted-average period of 1. 3 years.

Capital Ratios

Capital Ratios	9 Months Ended
	Sep. 30, 2017
Capital Ratios [Abstract]
Capital Ratios	 (13) Capital Ratios  The following table provides the capital ratios of the Company and Bank as of the dates presented, along with the applicable regulatory capital requirements:         Ratio at September 30, 2017 Ratio at December 31, 2016 Minimum Requirement for “Adequately Capitalized” Institution plus fully phased in Capital Conservation Buffer Minimum Requirement for "Well-Capitalized" Institution  Common Equity Tier 1 Risk-Based  Capital Ratio  Consolidated 10.56 % 10.46 % 7.00 % N/A  Guaranty Bank and Trust Company 12.23 % 12.43 % 7.00 % 6.50 %   Tier 1 Risk-Based Capital Ratio  Consolidated 11.40 % 11.34 % 8.50 % N/A  Guaranty Bank and Trust Company 12.23 % 12.43 % 8.50 % 8.00 %   Total Risk-Based Capital Ratio  Consolidated 13.50 % 13.58 % 10.50 % N/A  Guaranty Bank and Trust Company 13.00 % 13.26 % 10.50 % 10.00 %   Leverage Ratio  Consolidated 10.15 % 9.81 % 4.00 % N/A  Guaranty Bank and Trust Company 10.89 % 10.76 % 4.00 % 5.00 %  

Legal Contingencies

Legal Contingencies	9 Months Ended
	Sep. 30, 2017
Legal Contingencies [Abstract]
Legal Contingencies	(14) Legal Contingencies  The Company and the Bank are defendants, from time to time, in legal actions at various points of the legal process, including appeals, arising from transactions conducted in the ordinary course of business. Management believes, after consultation with legal counsel, that it is not probable that the outcome of current legal actions will result in a liability that has a material adverse effect on the Company’s consolidated financial position, results of operations, comprehensive income or cash flows. In the event that such legal action results in an unfavorable outcome, the resulting liability could have a material adverse effect on the Company’s consolidated financial position, results of operations, comprehensive income or cash flows.  In the third quarter 2017, the Company incurred a $1,600,000 charge for a litigation settlement. The settlement related to a commercial borrower who filed counterclaims immediately after the Bank began collection efforts on its defaulted loan. The Company successfully defended all initial counterclaims, but at the onset of the initial trial, one new claim was raised and resulted in a hung jury. After a successful appeals process, the final claim was scheduled for a retrial in the third quarter of 2017. Prior to this retrial, the former borrower re quested a conference to settle this remaining issue and after negotiation, the Company agreed to settle with the borrower to e liminate the expected significant costs of continued litigation.

Subsequent Events

Subsequent Events	9 Months Ended
	Sep. 30, 2017
Subsequent Events [Abstract]
Subsequent Events	 (15) Subsequent Events  On July 18, 2017, the Company entered into an Agreement and Plan of Reorganization (the “Castle Rock Merger Agreement”) with Castle Rock, parent company of Castle Rock Bank, a Colorado state chartered bank headqua rtered in Castle Rock, Colorado . As of September 30, 2017, Castle Rock had consolidated total assets of $145.0 million and deposits of $127.6 million , while the pro forma combined Company would have had approximately $3.7 billion in total assets and $3.0 billion in total deposits. The Castle Rock transaction adds a deposit franchise with excess liquidity to the Company’s existing presence in Douglas County, Colorado.  The transaction closed on October 27, 2017 , with an aggregate transaction value of $2 4 , 421 ,000 , based on the $29.05 closing price of the Company’s common stock on that date. In accordance with the terms of the Castle Rock Merger Agreement, in an all-stock transaction, Castle Rock shareholders received 840,639 shares of Company voting common stock in exchange for 100% of the outstanding shares of Castle Rock. Pre-tax merger-related expenses of $268,000 were included in the Company’s results of operations for both the three and nine months ended September 30, 2017. The entire $268,000 in merger-related expense is included in other general and administrative expense.  The transaction will be accounted for using the acquisition method of accounting which requires the assets acquired and liabilities assumed to be recognized at their fair values as of the acquisition date. As of the date of this filing, such valuations have not yet been completed.

Organization, Operations, And B

Organization, Operations, And Basis Of Presenstation (Policy)	9 Months Ended
	Sep. 30, 2017
Organization, Operations And Basis Of Presentation [Abstract]
Basis of Presentation	(a) Basis of Presentation  The accounting and reporting policies of the Company conform to generally accepted accounting principles in the United States of America. All material intercompany balances and transactions have been eliminated in consolidation. The Company’s financial statements reflect all adjustments that are, in the opinion of management, necessary for a fair presentation of its financial position and results of operations for the periods presented. All such adjustments are of a normal and recurring nature. Subsequent events have been evaluated through the date of financial statement issuance.  Certain information and note disclosures normally included in consolidated financial statements, prepared in accordance with generally accepted accounting principles (“GAAP”) in the United States of America, have been condensed or omitted pursuant to the rules and regulations of the Securities and Exchange Commission (the “SEC”). The interim operating results presented in these financial statements are not necessarily indicative of operating results for the full year. For further information, refer to the consolidated financial statements and notes included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2016.
Business Combinations	(b) Business Combinations  The Company accounts for acquisitions of businesses using the acquisition method of accounting. Under the acquisition method, assets acquired and liabilities assumed are recorded at their estimated fair value upon the date of acquisition. Management utilizes various valuation techniques including discounted cash flow analyses to determine the fair values of assets acquired and liabilities assumed. Any excess of purchase price over amounts allocated to the acquired assets, including identifiable intangible assets, and liabilities assumed is recorded as goodwill. 
Use of Estimates	(c) Use of Estimates  The preparation of the consolidated financial statements, in conformity with U.S. GAAP, requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities as of the dates of the consolidated balance sheets and income and expense for the periods presented. Actual results could differ significantly from those estimates. 
Loans and Loan Commitments	 (d) Loans and Loan Commitments  The Company extends commercial, real estate and consumer loans to customers. A substantial portion of the loan portfolio consists of commercial and real estate loans throughout the Front Range of Colorado. The ability of the Company’s borrowers to honor their loan contracts is generally dependent upon the real estate and general economic conditions prevailing in Colorado, among other factors.  Loans acquired in a business combination , that on the date of acquisition reflected evidence of credit deterioration since origination and for which collection of all contractually required payments was not probable , were designated as purchased credit impaired or “PCI” loans. In the September 8, 2016 Home State transaction, the Company designated $2,108,000 of loans as PCI. As of September 30, 2017, $809,000 in PCI loans remained in the Company’s loan portfolio. Loans not designated as PCI (“Non-PCI” loans) comprise the significant majority of the Company’s loan portfolio and consist of internally originated loans in addition to acquired loans. Acquired Non-PCI loans were designated as such as of the date of acquisition for one of or both of the following reasons: (1) management considered the collection of all contractually required payments probable, and (2) the loan demonstrated no evidence of credit deterioration since origination.  Loans that management has the intent and ability to hold for the foreseeable future, or until maturity or payoff, are reported at their outstanding unpaid principal balances, adjusted for charge-offs, the allowance for loan losses, acquisition-related discounts and any deferred fees or costs. Acquired loans are recorded upon acquisition at fair value, with no associated allowance for loan loss. However, if subsequent to acquisition, the credit quality of an acquired loan deteriorates, an allowance may be required. Accounting for loans is performed consistently across all portfolio segments and classes.  A portfolio segment is defined in accounting guidance as the level at which an entity develops and documents a systematic methodology to determine its allowance for loan losses. A class is defined in accounting guidance as a group of loans having similar initial measurement attributes, risk characteristics and methods for monitoring and assessing risk.  Interest income is accrued on the unpaid principal balance of the Company’s loans. Loan origination fees, net of direct origination costs, are deferred and recognized as an adjustment to the related loan yield using the effective interest method without anticipating prepayments. Purchase discount or premium on acquired Non-PCI loans is recognized as an adjustment to interest income over the contractual life of such loans using the effective interest method, or taken into income when the related loans are paid off or sold. With respect to PCI loans, the “accretable yield”, calculated as the excess of undiscounted expected cash flows at acquisition over the fair value at acquisition, is accreted into income over the term of the loan assuming the amount and timing of cash flows are reasonably estimable.  The accrual of interest on loans is discontinued (and the loan is put on nonaccrual status) at the time the loan is 90 days past due unless the loan is well secured and in process of collection. The time at which a loan enters past due status is based on the contractual terms of the loan. In all cases, loans are placed on nonaccrual or charged-off prior to the date on which they would otherwise enter past due status if collection of principal or interest is considered doubtful. The interest on a nonaccrual loan is accounted for using the cost-recovery or cash-basis method until the loan qualifies for a return to the accrual-basis method. Under the cost-recovery method, interest income is not recognized until the loan balance is reduced to zero, with payments received being applied first to the principal balance of the loan. Under the cash-basis method, interest income is recognized when the payment is received in cash. A loan is returned to accrual status after the delinquent borrower’s financial condition has improved, when all the principal and interest amounts contractually due are brought current, and when the likelihood of the borrower making future timely payments is reasonably assured.  Financial instruments include off ‑balance sheet credit instruments, such as commitments to make loans and commercial letters of credit issued to meet customer financing needs. The face amount of each item represents the Company’s total exposure to loss with respect to the item before considering customer collateral or ability to repay. Such financial instruments are recorded when they are funded.
Allowance for Loan Losses and Allowance for Unfunded Commitments	(e) Allowance for Loan Losses and Allowance for Unfunded Commitments  The allowance for loan losses, or “the allowance”, is a valuation allowance for probable incurred loan losses and is reported as a reduction of outstanding loan balances.  Management evaluates the amount of the allowance on a regular basis based upon its periodic review of the collectability of the Company’s loans. Factors affecting the colle ctability of the loans include the nature and volume of the loan portfolio, adverse situations that may affect borrowers’ ability to repay, estimated value of any underlying collateral, prevailing economic conditions and historical loss experience. This evaluation is inherently subjective as it requires estimates that are susceptible to significant revision as more information becomes available. Management maintains the allowance at a level that it deems appropriate to adequately provide for probable incurred losses in the loan portfolio and other extensions of credit. The Company’s methodology for estimating the allowance is consistent across all portfolio segments and classes of loans.  Loans deemed to be uncollectable are charged-off and deducted from the allowance. The Company’s loan portfolio primarily consists of non-homogeneous commercial and real estate loans where charge-offs are considered on a loan-by-loan basis based on the facts and circumstances, including management’s evaluation of collateral values in comparison to book values on collateral-dependent loans. Charge-offs on smaller balance unsecured homogenous type loans, such as overdrafts and ready reserves are recognized by the time the loan in question is 90 days past due. The provision for loan losses and recoveries on loans previously charged-off are added to the allowance.  The allowance consists of both specific and general components. The specific component relates to loans that are individually classified as impaired. All loans are subject to individual impairment evaluation should the pertinent facts and circumstances suggest that such evaluation is necessary. Factors considered by management in determining impairment include the loan’s payment status and the probability of collecting scheduled principal and interest payments when they become due. Loans that experience insignificant payment delays and payment shortfalls generally are not classified as impaired. A loan is considered impaired when, based on current information and events, it is probable that the Company will be unable to collect the scheduled payments of principal or interest when due according to the contractual terms of the original underlying loan agreement. Management determines the significance of payment delays and payment shortfalls on a case-by-case basis, taking into consideration all of the circumstances surrounding the loan and the borrower, including the length of the delay, the reasons for the delay, the borrower’s prior payment record and the amount of the shortfall in relation to the principal and interest owed. If a loan is impaired, a portion, if any, of the allowance is allocated so that the loan is reported at the present value of estimated future cash flows using the loan’s original contractual rate or at the fair value of collateral, less estimated selling costs, if repayment is expected solely from collateral. Troubled debt restructurings (“TDRs”) are separately identified for impairment disclosures. If a TDR is considered to be a collateral-dependent loan, impairment of the loan is measured using the fair value of the collateral, less estimated selling costs. Likewise, if a TDR is not collateral-dependent, impairment is measured using the present value of estimated future cash flows using the loan’s effective rate at inception. For TDRs that subsequently default, the Company determines the amount of reserve in accordance with its accounting policy for the allowance.  The general component of the allowance covers all other loans not specifically identified as impaired and is determined by calculating losses recognized by portfolio segment during the current credit cycle and adjusted based on management’s evaluation of various qualitative factors. In performing this calculation, loans are aggregated into one of three portfolio segments: Real Estate, Consumer and Commercial & Other. An assessment of risks impacting loans in each of these portfolio segments is performed and qualitative adjustment factors, which will adjust the historical loss rate, are estimated. These qualitative adjustment factors consider current conditions relative to conditions present throughout the current credit cycle in the following areas: credit quality, loan class concentration levels, economic conditions, loan growth dynamics and organizational conditions. The historical loss experience is adjusted for management’s estimate of the impact of these factors based on the risks present for each portfolio segment.  The Company recognizes a liability in relation to unfunded commitments that is intended to represent the estimated future losses on commitments. In calculating the amount of this liability, management considers the amount of the Company’s off-balance sheet commitments, estimated utilization factors and loan specific risk factors. The Company’s liability for unfunded commitments is calculated quarterly and the liability is included under “other liabilities” in the consolidated balance sheet. 
Goodwill And Other Intangible Assets	(f) Goodwill and Other Intangible Assets  Goodwill was recorded in the Home State transaction and represents the excess of the purchase price over the fair value of acquired tangible assets, identifiable intangible assets and liabilities. Goodwill is assessed at least annually for impairment and any such impairment is recognized in the period identified.  Intangible assets acquired in a business combination are amortized over their estimated useful lives to their estimated residual values and evaluated for impairment whenever changes in circumstances indicate that such an evaluation is necessary.  Core deposit intangible assets (“CDI assets”) are recognized at the time of their acquisition based on valuations prepared by independent third parties or other estimates of fair value. In preparing such valuations, management considers variables such as deposit servicing costs, attrition rates and market discount rates. CDI assets are amortized to expense over their useful lives, ranging from 10 years to 15 years.  Customer relationship intangible assets are recognized at the time of their acquisition based upon management’s estimate of their fair value. In preparing their valuation, management considers variables such as growth in existing customer base, attrition rates and market discount rates. The c ustomer relationship intangible assets are amortized to expense over their estimated useful life, which has been estimated to be 10 years. The Company has recognized three customer relationship intangible assets as a result of the acquisitions of PCM on July 31, 2012, Cherry Hills Investment Advisers Inc. on July 16, 2014 and Home State on September 8, 2016. 
Derivative Instruments	(g) Derivative Instruments  The Company records all derivatives on its consolidated balance sheet at fair value. At the inception of a derivative contract, the Company designates the derivative as one of three types based on the Company’s intentions and belief as to the derivative’s likely effectiveness as a hedge. These three types are (1) a hedge of the fair value of a recognized asset or liability or of an unrecognized firm commitment (“fair value hedge”), (2) a hedge of a forecasted transaction or the variability of cash flows to be received or paid related to a recognized asset or liability (“cash flow hedge”), or (3) an instrument with no hedging designation (“stand-alone derivative”). To date, the Company has entered into cash flow hedges and stand-alone derivative agreements but has not entered into any fair value hedges. For a cash flow hedge, the gain or loss on the derivative is reported in other comprehensive income and is reclassified into earnings in the same periods during which the hedged transaction impacts earnings. Any portion of the cash flow hedge not deemed highly effective in hedging the changes in expected cash flows of the hedged item are recognized immediately in current earnings. Changes in the fair value of derivatives that do not qualify for hedge accounting are reported currently in earnings as noninterest income.  The Company formally documents the relationship between derivatives and hedged items, as well as the risk-management objective and the strategy for undertaking hedge transactions, at the inception of the derivative contract. This documentation includes linking cash flow hedges to specific assets and liabilities on the balance sheet or to specific firm commitments or forecasted transactions. The Company also formally assesses, both at the hedge’s inception and on an ongoing basis, whether the hedge is highly effective in offsetting changes in cash flows of the hedged items.
Stock Incentive Plan	 (h) Stock Incentive Plan  The Company’s Amended and Restated 2005 Stock Incentive Plan (the “Incentive Plan”) provided for the grant of equity-based awards representing up to a total of 1,700,000 shares of voting common stock to key employees, nonemployee directors, consultants and prospective employees. The Incentive Plan expired by its terms on April 4, 2015. At the Company’s annual meeting of stockholders on May 5, 2015, the Company’s stockholders approved the Guaranty Bancorp 2015 Long-Term Incentive Plan (the “2015 Plan”), which had been previously approved by the Company’s Board of Directors. The 2015 Plan provides for the grant of stock options, stock awards, stock unit awards, performance stock awards, stock appreciation rights and other equity-based awards representing up to a total of 935,000 shares of voting common stock to key employees, nonemployee directors, consultants and prospective employees. All awards issued under the Incentive Plan will remain outstanding in accordance with their terms despite the expiration of the Incentive Plan; however, any awards granted subsequent to the expiration of the Incentive Plan have been, and will continue to be, issued under the 2015 Plan.  As of September 30, 2017, the Company had granted stock awards under both the Incentive Plan and the 2015 Plan. The Company recognizes stock compensation expense for services received in a share-based payment transaction over the required service period, generally defined as the vesting period. For awards with graded vesting, compensation cost is recognized on a straight-line basis over the requisite service period for the entire award. The compensation cost of employee and director services received in exchange for stock awards is based on the grant date fair value of the award, as determined by quoted market prices. Stock compensation expense is recognized using an estimated forfeiture rate, adjusted as necessary to reflect actual forfeitures. The Company has issued stock awards that vest based on the passage of time over service periods of one to five years (in some cases vesting in annual installments, in other cases cliff vesting at the end of the service period) and other stock awards that vest contingent upon the satisfaction of certain performance conditions. The last date on which outstanding performance stock awards may vest is February 15, 2020 . Compensation cost related to the performance stock awards is recognized based on an evaluation of expected financial performance in comparison to established criteria . Should expectations of the Company’s future financial performance change, expense to be recognized in future periods could be impacted. 
Stock Repurchase Plan	(i) Stock Repurchase Plan  On February 7, 2017, the Company’s Board of Directors authorized the extension of the expiration date of the Company’s share repurchase program originally announced in April 2014. Due to previous extensions the program was scheduled to expire on April 2, 2017, however, this most recent extension extends the expiration date of the repurchase program through April 2, 2018. Pursuant to the program, the Company may repurchase up to 1,000,000 shares of its voting common stock, par value $0.001 per share. As of the date of this filing, the Company had not repurchased any shares under the program.
Income Taxes	(j) Income Taxes  Income tax expense is the total of the current year’s income tax payable or refundable and the increase or decrease in deferred tax assets and liabilities. Deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases and operating loss and tax credit carry forwards. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income in the period of the enactment date.  Deferred tax assets are reduced by a valuation allowance when, in the opinion of management, it is more likely than not that the Company will not realize some portion of or the entire deferred tax asset. At September 30, 2017 and December 31, 2016, the Company had a net deferred tax asset of $2,922,000 and $4,846,000 , respectively, which includes the deferred tax asset (liability) associated with the net unrealized loss (gain) on securities and interest rate swaps. After analyzing the composition of, and changes in, the deferred tax assets and liabilities and considering the Company’s forecasted future taxable income and various tax planning strategies, including the intent to hold the securities available for sale that were in a loss position until maturity, management determined that as of September 30, 2017, it was “more likely than not” that the net deferred tax asset would be fully realized. As a result, there was no valuation allowance with respect to the Company’s deferred tax asset as of September 30, 2017 or December 31, 2016.  The Company and the Bank are subject to U.S. federal income tax, State of Colorado income tax and income tax in other states. Generally, the Company is no longer subject to examination by Federal taxing authorities for years before 201 4 and is no longer subject to examination by the State o f Colorado for years before 2013 . The Company recognizes interest related to income tax matters as interest expense and penalties related to income tax matters as other noninterest expense. At September 30, 2017 and December 31, 2016, the Company did no t have any amounts accrued for interest or penalties. 
Earnings Per Common Share	(k) Earnings per Common Share  Basic earnings per common share represents the earnings allocable to common stockholders divided by the weighted average number of common shares outstanding during the period. Dilutive common shares that may be issued by the Company represent unvested stock awards subject to a service or performance condition.  Earnings per common share have been computed based on the following calculation of weighted average shares outstanding:      Three Months Ended September 30, Nine Months Ended September 30,  2017 2016 2017 2016   Average common shares outstanding 27,920,658 22,811,386 27,900,627 21,750,153  Effect of dilutive unvested stock grants (1) 199,453 173,261 239,705 245,702  Average shares outstanding for calculated  diluted earnings per common share 28,120,111 22,984,647 28,140,332 21,995,855  _____________    (1) Unvested stock grants representing 476,549 shares at September 30 , 2017 had a dilutive impact of 199,453 and 239,705 shares in the diluted earnings per share calculation for the three and nine months ended September 30 , 2017, respectively. Unvested stock grants representing 564,376 shares at September 30 , 2016 had a dilutive impact of 173,261 and 245,702 shares in the diluted earnings per share calculation for the three and nine months ended September 30 , 2016, respectively. 
Recently Issued Accounting Standards	(l) Recently Issued Accounting Standards  Adoption of New Accounting Standards:  In March 2016, the Financial Accounting Standards Board (“ FASB ”) issued accounting standards update 2016-09 Compensation-Stock Compensation. The purpose of the update was to simplify the accounting for share-based payment transactions, including the income tax consequences of such transactions. Under the provisions of the update, the income tax consequences of excess tax benefits and deficiencies are recognized in income tax expense in the reporting period in which the awards vest. Previously, excess tax benefits or deficiencies impacted stockholder’s equity directly to the extent there was a cumulative excess tax benefit. In the event that a tax deficiency had occurred during the reporting period and a cumulative excess tax benefit did not exist, the tax deficiency was recognized in income tax expense under previous GAAP. The update also provides that entities may continue to estimate forfeitures in accounting for stock-based compensation or recognize them as they occur ; the Company has elected to continue to estimate forfeitures . Th e provisions of this update beca me effective for interim and annual periods beginning after December 15, 2016, however early adoption was permitted beginning in 2016. The Company adopted the provisions of the update in the fourth quarter 2016. During the first nine months of 2017 , $582,000 of excess tax benefits related to restricted stock vestings reduced income tax expense. Comparatively, excess tax benefits of $325,000 were retroactively recognized in the first nine months of 2016, upon adoption in the fourth quarter 2016.  Recently Issued but not yet Effective Accounting Standards:  In May 2014, the FASB issued accounting standards update 2014-09 Revenue from Contracts with Customers. The main provisions of the update require the identification of performance obligations within a contract and require the recognition of revenue based on a stand-alone allocation of contract revenue to each performance obligation. Performance obligations may be satisfied and revenue recognized over a period of time if: (i) the customer simultaneously receives and consumes the benefits provided by the entity’s performance as the entity performs, or (ii) the entity’s performance creates or enhances an asset that the customer controls as the asset is created or enhanced, or (iii) the entity’s performance does not create an asset with an alternative use to the entity and the entity has an enforceable right to payment for performance completed to date. For public business entities, the amendments of this update are effective beginning with interim and annual reporting periods beginning after December 15, 2017. Interest income earned on financial instruments is outside of the scope of the update, and as a result the impact of the update is limited to certain components of noninterest income. The Company’s noninterest income is generated by customer transactions or through the passage of time and as a result the pattern or timing of income recognition is not expected to be impacted under the update. The Company has elected to implement this update using modified retrospective application, which requires application to uncompleted contracts at the date of adoption. Under the modified retrospective transition method retrospective revisions to prior periods are not required, however, any difference in timing of revenue recognition on uncompleted contracts at adoption date is recorded in retained earnings as a cumulative adjustment. M anagement does not expect the requirements of this update to have a material impact on the Company’s financial position, results of operations or cash flows and has concluded that the most significant impact will be the disaggregated disclosure of certain components of noninterest income. In January 2016, the FASB released accounting standards update 2016-01 Recognition and Measurement of Financial Assets and Liabilities. The main provisions of the update are to eliminate the available for sale classification of accounting for equity securities and to adjust the fair value disclosures for financial instruments carried at amortized costs such that the disclosed fair values represent an exit price as opposed to an entry price. The provisions of this update will require that equity securities be carried at fair market value on the balance sheet and any periodic changes in value will be adjustments to the income statement. A practical expedient is provided for equity securities without a readily determinable fair value, such that these securities can be carried at cost less any impairment. The provisions of this update become effective for interim and annual periods beginning after December 15, 2017. The disclosure of fair value of the loan portfolio will be impacted as the fair value will be calculated using an exit price. Management does not expect the requirements of this update to have a material impact on the Company’s financial position, results of operations or cash flows.  In February 2016, the FASB issued accounting standards update 2016-02 Leases. The update requires all leases, with the exception of short-term leases that have contractual terms of no greater than one year, to be recorded on the balance sheet. Under the provisions of the update, leases classified as operating will be reflected on the balance sheet with the recognition of both a right-of-use asset and a lease liability. Under the update, a distinction will exist between finance and operating type leases and the rules for determining which classification a lease will fall into are similar to existing rules. For public business entities, the amendments of this update are effective for interim and annual periods beginning after December 15, 2018. The update requires a modified retrospective transition under which comparative balance sheets from the earliest historical period presented will be revised to reflect what the financials would have looked like were the provisions of the update applied consistently in all prior periods. Management is in the process of evaluating the impacts of the update on the Company’s financial position and does not expect the requirements of the update to have a material impact on the Company’s financial position, results of operations or cash flows. Based on leases outstanding at September 30, 2017, we anticipate total assets and total liabilities will increase between $9,000,000 and $11,000,000 as the result of additional leases being recognized on our balance sheet. Decisions to repurchase, modify, or renew leases prior to the implementation date will impact the results of the Company’s final analysis.  In June 2016, the FASB issued accounting standards update 2016-13 Financial Instruments - Credit Losses, commonly referred to as “CECL”. The provisions of the update eliminate the probable initial recognition threshold under current GAAP which requires reserves to be based on an incurred loss methodology. Under CECL, reserves required for financial assets measured at amortized cost will reflect an organization’s estimate of all expected credit losses over the contractual term of the financial asset and thereby require the use of reasonable and supportable forecasts to estimate future credit losses. Because CECL encompasses all financial assets carried at amortized cost, the requirement that reserves be established based on an organization’s reasonable and supportable estimate of expected credit losses extends to held to maturity (“HTM”) debt securities. Under the provisions of the update, credit losses recognized on available for sale (“AFS”) debt securities will be presented as an allowance as opposed to a write-down. In addition, CECL will modify the accounting for purchased loans, with credit deterioration since origination, so that reserves are established at the date of acquisition for purchased loans. Under current GAAP, a purchased loan’s contractual balance is adjusted to fair value through a credit discount and no reserve is recorded on the purchased loan upon acquisition. Since reserves will be established for purchased loans at the time of acquisition under CECL, the accounting for purchased loans is made more comparable to the accounting for originated loans. Finally, increased disclosure requirements under CECL require organizations to present the currently required credit quality disclosures disaggregated by the year of origination or vintage. The FASB expects that the evaluation of underwriting standards and credit quality trends by financial statement users will be enhanced with the additional vintage disclosures. For public business entities that are SEC filers, the amendments of the update will become effective beginning January 1, 2020. The Company has formed a cross-functional committee that is assessing our data and system needs and has begun working with an external vendor regarding the development of a CECL-compliant model and the gathering of the requisite data. Management expects to recognize a one-time cumulative effect adjustment to the allowance for loan losses as of the first reporting period in which the new standard is effective, but cannot yet estimate the magnitude of the one-time adjustment or the overall impact of the new guidance on the Company’s financial position, results of operations or cash flows.  In August 2016, the FASB issued accounting standards update 2016-15, Statement of Cash Flows. This update addresses eight specific cash flow issues with the objective of reducing the existing diversity in practice of how certain cash receipts and cash payments are presented and classified in the statement of cash flows. The amendments in this update are effective for fiscal years and interim periods beginning after December 15, 2017; however early adoption is permitted. The provisions of the update outline the appropriate classification of debt extinguishment costs, repayment of debt instruments with insignificant coupons, contingent consideration payments made subsequent to a business combination, insurance proceeds, premiums and settlements on bank-owned life insurance policies, distributions from equity method investees, beneficial interest in securitizations and the appropriate classification of payments and receipts that contain aspects of multiple classes of cash flows. Management does not expect the update to materially impact the Company’s statement of cash flows, although the classification of certain items could shift relative to past presentation. For example, in 2014 the Company classified a $5.5 million prepayment penalty on debt extinguishment in the Operating, section of the statement of cash flows, under the provisions of the update if that penalty were incurred in 2018, it would be included in the Financing section .  In January 2017, the FASB issued accounting standards update 2017-04, Simplifying the Test for Goodwill Impairment. The provisions of the update eliminate the existing second step of the goodwill impairment test which provides for the allocation of reporting unit fair value among existing assets and liabilities, with the net remaining amount representing the implied fair value of goodwill. In replacement of the existing goodwill impairment rule, the update will provide that impairment should be recognized as the excess of any of the reporting unit’s carrying value over the fair value of the reporting unit. Under the provisions of this update, the amount of the impairment is limited to the carrying value of the reporting unit’s goodwill. For public business entities that are SEC filers, the amendments of the update will become effective in fiscal years beginning after December 15, 2019. Management does not expect the requirements of this update to have a material impact on the Company’s financial position, results of operations or cash flows.  In March 2017, the FASB issued accounting standards update 2017-08, Premium Amortization on Purchased Callable Debt Securities. The provisions of the update require premiums recognized upon the purchase of callable debt securities to be amortized to the earliest call date in order to avoid losses recognized upon call. For public business entities that are SEC filers, the amendments of the update will become effective in fiscal years beginning after December 15, 2018. Management does not expect the requirements of this update to have a material impact on the Company’s financial position, results of operations or cash flows.  In August 2017, the FASB issued accounting standards update 2017-12, Targeted Improvements to Accounting for Hedging Activities . 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. The update is effective for public business entities for fiscal years be ginning after December 15, 2018 . The update 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 statement of financial position as of the date of adoption. Management has begun assessing potential impacts of the standard, but does not expect the requirements of this update to have a material impact on the Company’s financial position, results of operations or cash flows. 
Reclassifications	(m) Reclassifications  Certain reclassifications of prior year balances have been made to conform to the current year presentation. These reclassifications had no impact on the Company’s consolidated financial position, results of operations or cash flows.

Organization, Operations And 24

Organization, Operations And Basis Of Presentation (Tables)	9 Months Ended
	Sep. 30, 2017
Organization, Operations And Basis Of Presentation [Abstract]
Earnings (Loss) Per Common Share	   Three Months Ended September 30, Nine Months Ended September 30,  2017 2016 2017 2016   Average common shares outstanding 27,920,658 22,811,386 27,900,627 21,750,153  Effect of dilutive unvested stock grants (1) 199,453 173,261 239,705 245,702  Average shares outstanding for calculated  diluted earnings per common share 28,120,111 22,984,647 28,140,332 21,995,855  _____________    (1) Unvested stock grants representing 476,549 shares at September 30 , 2017 had a dilutive impact of 199,453 and 239,705 shares in the diluted earnings per share calculation for the three and nine months ended September 30 , 2017, respectively. Unvested stock grants representing 564,376 shares at September 30 , 2016 had a dilutive impact of 173,261 and 245,702 shares in the diluted earnings per share calculation for the three and nine months ended September 30 , 2016, respectively.  

Business Combinations (Tables)

Business Combinations (Tables)	9 Months Ended
	Sep. 30, 2017
Business Combinations [Abstract]
Schedule Of Assets And Liabilities Acquired	   Assets acquired:  (In thousands)  Cash and cash equivalents $ 11,849  Time deposits with banks 504  Securities available-for-sale 396,450  Securities held-to-maturity 850  Bank stocks 1,477  Net Loans 445,529  Premises and equipment, net 22,950  Other real estate owned 45  Goodwill 56,404  Other intangible assets, net 11,701  Other assets 8,118  Total assets acquired 955,877   Liabilities assumed:  Deposits 769,709  Securities sold under agreement to repurchase and federal funds purchased 19,985  Federal Home Loan Bank term notes 2,525  Federal Home Loan Bank line of credit borrowing 2,052  Other liabilities 9,128  Total liabilities assumed 803,399  Net Assets Acquired $ 152,478 

Securities (Tables)

Securities (Tables)	9 Months Ended
	Sep. 30, 2017
Securities [Abstract]
Fair Value Of Available For Sale Debt Securities	   September 30, 2017  Fair Value Gross Unrealized Gains Gross Unrealized Losses Amortized Cost  (In thousands)  Securities available for sale:  State and municipal $ 75,199 $ 256 $ (1,328) $ 76,271  Mortgage-backed - agency / residential 119,162 250 (2,434) 121,346  Corporate 88,299 556 (1,250) 88,993  Collateralized loan obligations 15,823 13 (40) 15,850  Total securities available for sale $ 298,483 $ 1,075 $ (5,052) $ 302,460      December 31, 2016  Fair Value Gross Unrealized Gains Gross Unrealized Losses Amortized Cost  (In thousands)  Securities available for sale:  State and municipal $ 81,608 $ 91 $ (2,542) $ 84,059  Mortgage-backed - agency / residential 129,832 347 (3,117) 132,602  Mortgage-backed - private / residential 265 - (6) 271  Corporate 86,246 288 (1,357) 87,315  Collateralized loan obligations 26,277 50 (66) 26,293  Total securities available for sale $ 324,228 $ 776 $ (7,088) $ 330,540 
Unrecognized Gains and Losses, Securities Held To Maturity	    Fair Value Gross Unrecognized Gains Gross Unrecognized Losses Amortized Cost  (In thousands)  September 30, 2017:  State and municipal $ 137,706 $ 1,305 $ (1,212) $ 137,613  Mortgage-backed - agency / residential 101,916 616 (1,744) 103,044  Asset-backed 16,749 102 (37) 16,684  Other 1,200 - - 1,200  $ 257,571 $ 2,023 $ (2,993) $ 258,541   December 31, 2016:  State and municipal $ 118,734 $ 745 $ (3,120) $ 121,109  Mortgage-backed - agency / residential 100,565 507 (2,590) 102,648  Asset-backed 18,905 9 (126) 19,022  Other 1,200 - - 1,200  $ 239,404 $ 1,261 $ (5,836) $ 243,979 
Proceeds From Sales And Calls of Securities	   Three Months Ended September 30, Nine Months Ended September 30,  2017 2016 2017 2016   (In thousands)  Proceeds $ 48,320 $ 317,630 $ 48,320 $ 370,111  Gross gains 254 1,434 254 2,486  Gross losses (340) (1,500) (340) (2,608)  Net tax (benefit) expense related to  gains (losses) on sale (33) (25) (33) (46) 
Investments Classified by Contractual Maturity Date	   Available for Sale  Fair Value Amortized Cost  (In thousands)  Securities available for sale:  Due in one year or less $ 5,083 $ 5,047  Due after one year through five years 11,797 11,676  Due after five years through ten years 94,754 96,272  Due after ten years 51,864 52,269  Total AFS, excluding mortgage-backed (MBS)  and collateralized loan obligations 163,498 165,264  Mortgage-backed and collateralized  loan obligations 134,985 137,196  Total securities available for sale $ 298,483 $ 302,460       Held to Maturity  Fair Value Amortized Cost  (In thousands)  Securities held to maturity:  Due in one year or less $ 150 $ 150  Due after one year through five years 13,139 12,948  Due after five years through ten years 76,546 76,660  Due after ten years 49,071 49,055  Total HTM, excluding MBS and asset-backed 138,906 138,813  Mortgage-backed and asset-backed 118,665 119,728  Total securities held to maturity $ 257,571 $ 258,541 
Fair Value And The Unrealized Loss On Temporarily Impaired Securities	   September 30, 2017 Less than 12 Months 12 Months or More Total  Fair Value Unrealized Losses Fair Value Unrealized Losses Fair Value Unrealized Losses   (In thousands)  Description of securities:  Available for sale:  State and municipal $ 23,546 $ (247) $ 32,002 $ (1,081) $ 55,548 $ (1,328)  Mortgage-backed - agency /  residential 57,323 (1,086) 35,532 (1,348) 92,855 (2,434)  Corporate 38,940 (821) 10,762 (429) 49,702 (1,250)  Collateralized loan obligations 10,570 (40) - - 10,570 (40)   Held to maturity:  State and municipal 23,722 (382) 63,138 (1,556) 86,860 (1,938)  Mortgage-backed - agency /  residential 35,539 (1,312) 49,796 (1,006) 85,335 (2,318)  Asset-backed - - 16,749 (348) 16,749 (348)  Total temporarily impaired $ 189,640 $ (3,888) $ 207,979 $ (5,768) $ 397,619 $ (9,656)       December 31, 2016 Less than 12 Months 12 Months or More Total  Fair Value Unrealized Losses Fair Value Unrealized Losses Fair Value Unrealized Losses   (In thousands)  Description of securities:  Available for sale:  State and municipal $ 47,434 $ (2,542) $ - $ - $ 47,434 $ (2,542)  Mortgage-backed - agency /  residential 93,909 (2,782) 9,526 (335) 103,435 (3,117)  Mortgage-backed - private /  residential 265 (6) - - 265 (6)  Corporate 49,964 (1,042) 5,685 (315) 55,649 (1,357)  Collateralized loan obligations 9,077 (17) 5,488 (49) 14,565 (66)   Held to maturity:  State and municipal 90,959 (3,804) 596 (259) 91,555 (4,063)  Mortgage-backed - agency /  residential 99,920 (3,442) - - 99,920 (3,442)  Asset-backed 15,690 (542) 3,216 (98) 18,906 (640)  Total temporarily impaired $ 407,218 $ (14,177) $ 24,511 $ (1,056) $ 431,729 $ (15,233) 

Loans (Tables)

Loans (Tables)	9 Months Ended
	Sep. 30, 2017
Loans [Abstract]
Loans Held For Investment By Loan Type	   September 30, December 31,  2017 2016   (In thousands)  Commercial and residential real estate $ 1,892,828 $ 1,768,424  Construction 81,826 88,451  Commercial 449,450 432,083  Agricultural 15,824 16,690  Consumer 124,625 125,264  SBA 45,935 52,380  Other 51,004 31,778  Total gross loans 2,661,492 2,515,070  Deferred costs and (fees) 60 (61)  Loans, held for investment, net 2,661,552 2,515,009  Less allowance for loan losses (22,900) (23,250)  Net loans, held for investment $ 2,638,652 $ 2,491,759 
Allowance For Loan Losses	   Three Months Ended September 30, Nine Months Ended September 30,  2017 2016 2017 2016   (In thousands)  Balance, beginning of period $ 23,125 $ 23,050 $ 23,250 $ 23,000  Provision for loan losses 497 27 708 53  Loans charged-off (970) (72) (1,433) (431)  Recoveries on loans previously  charged-off 248 295 375 678  Balance, end of period $ 22,900 $ 23,300 $ 22,900 $ 23,300 
Allowance For Loan Losses And Loans Held For Investment By Portfolio Segment	   Real Estate Consumer and Installment Commercial and Other Total  (In thousands)  Allowance for Loan Losses  Balance as of January 1, 2017 $ 20,082 $ 105 $ 3,063 $ 23,250  Charge-offs (383) (92) (958) (1,433)  Recoveries 86 11 278 375  Provision (credit) (915) 159 1,464 708  Balance as of September 30, 2017 $ 18,870 $ 183 $ 3,847 $ 22,900    Balance as of July 1, 2017 $ 19,400 $ 193 $ 3,532 $ 23,125  Charge-offs (250) (75) (645) (970)  Recoveries 21 4 223 248  Provision (credit) (301) 61 737 497  Balance as of September 30, 2017 $ 18,870 $ 183 $ 3,847 $ 22,900      Balances at September 30, 2017:   Allowance for Loan Losses  Individually evaluated $ 27 $ - $ 671 $ 698  Collectively evaluated 18,843 183 3,176 22,202  Total $ 18,870 $ 183 $ 3,847 $ 22,900   Loans  Individually evaluated $ 10,155 $ 1 $ 5,577 $ 15,733  Collectively evaluated 2,129,684 60,482 455,653 2,645,819  Total $ 2,139,839 $ 60,483 $ 461,230 $ 2,661,552      Real Estate Consumer and Installment Commercial and Other Total  (In thousands)  Allowance for Loan Losses  Balance as of January 1, 2016 $ 20,306 $ 71 $ 2,623 $ 23,000  Charge-offs (213) (12) (206) (431)  Recoveries 235 13 430 678  Provision (credit) (143) (15) 211 53  Balance as of September 30, 2016 $ 20,185 $ 57 $ 3,058 $ 23,300    Allowance for Loan Losses  Balance as of July 1, 2016 $ 20,171 $ 75 $ 2,804 $ 23,050  Charge-offs (9) (5) (58) (72)  Recoveries 150 2 143 295  Provision (credit) (127) (15) 169 27  Balance as of September 30, 2016 $ 20,185 $ 57 $ 3,058 $ 23,300      Balances at December 31, 2016:   Allowance for Loan Losses  Individually evaluated $ 29 $ - $ 193 $ 222  Collectively evaluated 20,053 105 2,870 23,028  Total $ 20,082 $ 105 $ 3,063 $ 23,250   Loans  Individually evaluated $ 22,728 $ 2 $ 7,645 $ 30,375  Collectively evaluated 2,024,524 55,182 404,928 2,484,634  Total $ 2,047,252 $ 55,184 $ 412,573 $ 2,515,009 
Schedule Of Impaired Loans	   September 30, 2017 Recorded Investment Unpaid Balance Related Allowance Average Recorded Investment YTD Interest Income Recognized YTD  (In thousands)  Impaired loans with no related allowance:  Commercial and residential real estate $ 9,974 $ 10,479 $ - $ 17,713 $ 1,967  Construction - - - - -  Commercial 843 1,336 - 856 126  Consumer 17 19 - 18 -  Other 571 1,412 - 775 18  Total $ 11,405 $ 13,246 $ - $ 19,362 $ 2,111   Impaired loans with a related allowance:  Commercial and residential real estate $ 27 $ 135 $ 1 $ 962 $ -  Construction - - - - -  Commercial 2,186 2,262 69 4,126 54  Consumer 579 665 8 366 16  Other 1,536 1,591 620 793 4  Total $ 4,328 $ 4,653 $ 698 $ 6,247 $ 74   Total impaired loans:  Commercial and residential real estate $ 10,001 $ 10,614 $ 1 $ 18,675 $ 1,967  Construction - - - - -  Commercial 3,029 3,598 69 4,982 180  Consumer 596 684 8 384 16  Other 2,107 3,003 620 1,568 22  Total impaired loans $ 15,733 $ 17,899 $ 698 $ 25,609 $ 2,185      December 31, 2016 Recorded Investment Unpaid Balance Related Allowance Average Recorded Investment YTD Interest Income Recognized YTD  (In thousands)  Impaired loans with no related allowance:  Commercial and residential real estate $ 20,477 $ 21,140 $ - $ 13,875 $ 1,911  Construction - - - 592 -  Commercial 222 229 - 243 16  Consumer 18 19 - 117 2  Other 817 1,625 - 493 -  Total $ 21,534 $ 23,013 $ - $ 15,320 $ 1,929   Impaired loans with a related allowance:  Commercial and residential real estate $ 1,767 $ 1,890 $ 19 $ 8,590 $ 44  Construction - - - - -  Commercial 6,371 6,423 155 2,937 309  Consumer 306 383 9 389 9  Other 397 444 39 348 -  Total $ 8,841 $ 9,140 $ 222 $ 12,264 $ 362   Total impaired loans:  Commercial and residential real estate $ 22,244 $ 23,030 $ 19 $ 22,465 $ 1,955  Construction - - - 592 -  Commercial 6,593 6,652 155 3,180 325  Consumer 324 402 9 506 11  Other 1,214 2,069 39 841 -  Total impaired loans $ 30,375 $ 32,153 $ 222 $ 27,584 $ 2,291 
Summary Of Past Due Loans By Class	   September 30, 2017 30-89 Days Past Due 90 Days + Past Due and Still Accruing Nonaccrual Total Nonaccrual and Past Due Total Loans, Held for Investment  (In thousands)  Commercial and residential  real estate $ 113 $ - $ 1,722 $ 1,835 $ 1,892,870  Construction - - - - 81,828  Commercial 8,879 - 844 9,723 449,460  Consumer 137 - 264 401 124,628  Other - - 1,914 1,914 112,766  Total $ 9,129 $ - $ 4,744 $ 13,873 $ 2,661,552      December 31, 2016 30-89 Days Past Due 90 Days + Past Due and Still Accruing Nonaccrual Total Nonaccrual and Past Due Total Loans, Held for Investment  (In thousands)  Commercial and residential  real estate $ 1,258 $ - $ 2,835 $ 4,093 $ 1,768,381  Construction - - - - 88,449  Commercial 37 - 1,094 1,131 432,072  Consumer 42 - 201 243 125,261  Other - - 1,117 1,117 100,846  Total $ 1,337 $ - $ 5,247 $ 6,584 $ 2,515,009 
Summary Of The Risk Category Of Loans By Class Of Loans	   September 30, 2017 Commercial & Residential Real Estate Construction Commercial Consumer Other Total  (In thousands)  Non-classified $ 1,880,451 $ 81,826 $ 438,512 $ 124,248 $ 108,269 $ 2,633,306  Substandard 12,377 - 10,938 377 4,494 28,186  Doubtful - - - - - -  Subtotal 1,892,828 81,826 449,450 124,625 112,763 2,661,492  Deferred costs and fees 42 2 10 3 3 60  Loans, held for investment, net $ 1,892,870 $ 81,828 $ 449,460 $ 124,628 $ 112,766 $ 2,661,552      December 31, 2016 Commercial & Residential Real Estate Construction Commercial Consumer Other Total  (In thousands)  Non-classified $ 1,742,974 $ 88,451 $ 427,278 $ 124,932 $ 98,561 $ 2,482,196  Substandard 25,450 - 4,805 332 2,287 32,874  Doubtful - - - - - -  Subtotal 1,768,424 88,451 432,083 125,264 100,848 2,515,070  Deferred fees and costs (43) (2) (11) (3) (2) (61)  Loans, held for investment, net $ 1,768,381 $ 88,449 $ 432,072 $ 125,261 $ 100,846 $ 2,515,009 

Goodwill And Other Intangible28

Goodwill And Other Intangible Assets (Tables)	9 Months Ended
	Sep. 30, 2017
Goodwill And Other Intangible Assets [Abstract]
Schedule Of Finite Lived Intangible Assets And Related Accumulated Amortization	   September 30, December 31,  Useful Life 2017 2016   (In thousands)  Core deposit intangible assets 10 - 15 years $ 74,087 $ 74,087  Core deposit intangible assets accumulated amortization (64,642) (63,112)  Core deposit intangible assets, net $ 9,445 $ 10,975   Customer relationship intangible assets 10 years 6,243 6,243  Customer relationship intangible assets accumulated amortization (2,340) (1,901)  Customer relationship intangible assets, net $ 3,903 $ 4,342   Total other intangible assets, net $ 13,348 $ 15,317 

Subordinated Debentures And T29

Subordinated Debentures And Trust Preferred Securities (Tables)	9 Months Ended
	Sep. 30, 2017
Subordinated Debentures And Trust Preferred Securities [Abstract]
Schedule Of Subordinated Debenture Issuance	   Date Issued Amount Maturity Date Call Date * Fixed or Variable Rate Adjuster Current Rate Next Rate Reset Date**   CenBank Trust III 4/8/2004 15,464 4/15/2034 1/15/2018 Variable LIBOR + 2.65 % 3.95 % 1/15/2018  Guaranty Capital Trust III 6/30/2003 10,310 7/7/2033 1/7/2018 Variable LIBOR + 3.10 % 4.40 % 1/7/2018  Subordinated Note 7/18/2016 40,000 7/20/2026 N/A Fixed LIBOR + 4.73 % 5.75 % 7/20/2021 * Call date represents the earliest or next date the Company can call the debentures. ** On October 7, 2017 , the rate on the Guaranty Capital Trust III subordinated debentures reset to 4.46% . On October 15, 2017, the rate on the CenBank Trust III subordinated debentures reset to 4.01% . The subordinated notes issued July 18, 2016 are fixed at 5.75% until July 20, 2021 at which point the notes convert to floating rate at three-month LIBOR plus 4.73% .

Commitments (Tables)

Commitments (Tables)	9 Months Ended
	Sep. 30, 2017
Commitments [Abstract]
Commitments To Extend Credit	   September 30, 2017 December 31, 2016   (In thousands)  Commitments to extend credit:  Variable $ 470,152 $ 436,546  Fixed 105,198 95,607  Total commitments to extend credit $ 575,350 $ 532,153   Standby letters of credit $ 12,694 $ 10,292 

Fair Value Measurements And F31

Fair Value Measurements And Fair Value Of Financial Instruments (Tables)	9 Months Ended
	Sep. 30, 2017
Fair Value Measurements And Fair Value Of Financial Instruments [Abstract]
Financial Assets and Liabilities Measured on a Recurring Basis	   Quoted Prices in Active Markets for Identical Assets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Balance  (In thousands)  Assets/(Liabilities) at September 30, 2017  State and municipal securities $ - $ 67,798 $ 7,401 $ 75,199  Mortgage-backed securities – agency /  residential - 119,162 - 119,162  Corporate securities - 88,299 - 88,299  Collateralized loan obligations - 15,823 15,823  Interest rate swaps - cash flow hedge - (1,507) - (1,507)   Assets/(Liabilities) at December 31, 2016  State and municipal securities $ - $ 49,856 $ 31,752 $ 81,608  Mortgage-backed securities – agency /  residential - 129,832 - 129,832  Mortgage-backed securities – private /  residential - 265 - 265  Corporate securities - 86,246 - 86,246  Collateralized loan obligations - 26,277 26,277  Interest rate swaps - cash flow hedge - (1,929) - (1,929) 
Fair Value Measurements Using Significant Unobservable Inputs (Level 3)	   State and Municipal Securities  Three Months Ended September 30, 2017 Nine Months Ended September 30, 2017   (In thousands)  Beginning balance $ 31,595 $ 31,752  Total unrealized gains (losses) included in:  Net income 1 5  Other comprehensive income (loss) - -  Sales, calls and prepayments (24,195) (24,356)  Transfers in and (out) of Level 3 - -  Balance end of period $ 7,401 $ 7,401       State and Municipal Securities  Three Months Ended September 30, 2016 Nine Months Ended September 30, 2016   (In thousands)  Beginning balance $ 31,909 $ 32,040  Total unrealized gains (losses) included in:  Net income 2 5  Other comprehensive income (loss) - -  Sales, calls and prepayments (81) (215)  Acquisition of Level 3 security 131 131  Transfers in and (out) of Level 3 - -  Balance end of period $ 31,961 $ 31,961 
Quantitative Information About Level 3 Fair Value Measurements	   September 30, 2017 Fair Value Valuation Technique Unobservable Inputs Range  (In thousands)  State and municipal securities $ 7,401 discounted cash flow discount rate 2.25% - 2.75%  Total $ 7,401       December 31, 2016 Fair Value Valuation Technique Unobservable Inputs Range  (In thousands)  State and municipal securities $ 31,752 discounted cash flow discount rate 2.29% -4.75%  Total $ 31,752  
Estimated Fair Values And Related Carrying Amounts Of Financial Instruments	   Fair Value Measurements at September 30, 2017:  Carrying Amount Level 1 Level 2 Level 3 Total  (In thousands)  Financial assets:  Cash and cash equivalents $ 64,388 $ 64,388 $ - $ - $ 64,388  Time deposits with banks 254 254 - - 254  Securities available for sale 298,483 - 291,082 7,401 298,483  Securities held to maturity 258,541 - 255,012 2,559 257,571  Bank stocks 19,435 n/a n/a n/a n/a  Loans held for sale 314 345 - - 345  Loans held for investment, net 2,638,652 - - 2,615,217 2,615,217  Accrued interest receivable 10,868 - 10,868 - 10,868   Financial liabilities:  Deposits $ 2,898,060 $ - $ 2,895,570 $ - $ 2,895,570  Federal funds purchased and sold under  agreements to repurchase 37,943 - 37,943 - 37,943  Short-term borrowings 51,182 - 51,182 - 51,182  Subordinated debentures 65,044 - - 61,004 61,004  Long-term borrowings 70,000 - 70,008 - 70,008  Accrued interest payable 1,194 - 1,194 - 1,194  Interest rate swap - cash flow hedge 1,507 - 1,507 - 1,507        Fair Value Measurements at December 31, 2016:  Carrying Amount Level 1 Level 2 Level 3 Total  (In thousands)  Financial assets:  Cash and cash equivalents $ 50,111 $ 50,111 $ - $ - $ 50,111  Time deposits with banks 254 254 - - 254  Securities available for sale 324,228 - 292,476 31,752 324,228  Securities held to maturity 243,979 - 236,857 2,547 239,404  Bank stocks 22,649 n/a n/a n/a n/a  Loans held for sale 4,129 4,542 - - 4,542  Loans held for investment, net 2,491,759 - - 2,504,144 2,504,144  Accrued interest receivable 9,825 - 9,825 - 9,825   Financial liabilities:  Deposits $ 2,699,084 $ - $ 2,696,766 $ - $ 2,696,766  Federal funds purchased and sold under  agreements to repurchase 36,948 - 36,948 - 36,948  Short-term borrowings 124,691 - 124,691 - 124,691  Subordinated debentures 64,981 - - 60,048 60,048  Long-term borrowings 72,477 - 72,769 - 72,769  Accrued interest payable 1,661 - 1,661 - 1,661  Interest rate swap - cash flow hedge 1,929 - 1,929 - 1,929 

Derivatives And Hedging Activ32

Derivatives And Hedging Activities (Tables)	9 Months Ended
	Sep. 30, 2017
Derivatives And Hedging Activities [Abstract]
Schedule Of Derivative Financial Instruments As Well As Their Classification On The Balance Sheet	   Balance Fair Value  Sheet September 30, December 31,  Location 2017 2016   (In thousands)  Derivatives designated as hedging instruments  Assets:  Interest rate swaps Other assets $ - $ -  Liabilities:  Interest rate swaps Other liabilities $ 1,507 $ 1,929 
Summary Of Interest Rate Swaps Designated As Cash Flow Hedges	   September 30, 2017 December 31, 2016   (Dollars in thousands)  Notional amounts $ 50,000 $ 50,000  Weighted average pay rates 2.73 % 2.73 %  Weighted average receive rates 3 month LIBOR 3 month LIBOR  Weighted average maturity 3.1 years 3.9 years  Unrealized gains (losses) $ (1,507) $ (1,929) 
Schedule Of Derivative Financial Instruments On Both Comprehensive Income And Net Income	   Income Three Months Ended Nine Months Ended  Interest Rate Swaps with Statement September 30, September 30,  Hedge Designation Location 2017 2016 2017 2016   (In thousands)  Gain or (loss) recognized in OCI on  derivative - net of tax Not applicable $ 20 $ 235 $ (116) $ (963)  (Gain) or loss reclassified from  accumulated OCI into income  (effective portion) - net of tax Interest expense 118 161 378 426 

Accumulated Other Comprehensi33

Accumulated Other Comprehensive Income (Tables)	9 Months Ended
	Sep. 30, 2017
Accumulated Other Comprehensive Income [Abstract]
Schedule Of Changes Within AOCI	   Unrealized Gains and Losses on Available for Sale Securities Unrealized Gains and Losses on Held to Maturity Securities Unrealized Gains and Losses on Cash Flow Hedges Total  (In thousands)  Balance, July 1, 2016 $ (39) $ (1,340) $ (2,458) $ (3,837)  Other comprehensive income (loss)  before reclassifications, net of tax 400 - 235 635  Net unrealized losses on securities transferred  from available for sale, to held to maturity  net of tax - - - -  Amounts reclassified from accumulated  other comprehensive income (loss), net of tax 41 64 161 266  Net other comprehensive income (loss) 441 64 396 901  Balance, September 30, 2016 $ 402 $ (1,276) $ (2,062) $ (2,936)   Balance, January 1, 2016 $ (1,803) $ (1,477) $ (1,525) $ (4,805)  Other comprehensive income (loss)  before reclassifications, net of tax 2,129 - (963) 1,166  Net unrealized losses on securities transferred  from available for sale, to held to maturity  net of tax - - - -  Amounts reclassified from accumulated  other comprehensive income (loss), net of tax 76 201 426 703  Net other comprehensive income (loss) 2,205 201 (537) 1,869  Balance, September 30, 2016 $ 402 $ (1,276) $ (2,062) $ (2,936)   Balance, July 1, 2017 $ (2,575) $ (1,526) $ (1,011) $ (5,112)  Other comprehensive income (loss)  before reclassifications, net of tax 56 - 20 76  Net unrealized losses on securities transferred  from available for sale, to held to maturity  net of tax - - - -  Amounts reclassified from accumulated  other comprehensive income (loss), net of tax 53 74 118 245  Net other comprehensive income (loss) 109 74 138 321  Balance, September 30, 2017 $ (2,466) $ (1,452) $ (873) $ (4,791)   Balance, January 1, 2017 $ (3,913) $ (1,678) $ (1,135) $ (6,726)  Other comprehensive income (loss)  before reclassifications, net of tax 1,394 - (116) 1,278  Net unrealized losses on securities transferred  from available for sale, to held to maturity  net of tax - - - -  Amounts reclassified from accumulated  other comprehensive income (loss), net of tax 53 226 378 657  Net other comprehensive income (loss) 1,447 226 262 1,935  Balance, September 30, 2017 $ (2,466) $ (1,452) $ (873) $ (4,791) 
Schedule Of Amounts Reclassified Out Of AOCI	  Details about Affected Income Statement  AOCI Components Amount Reclassified from AOCI Line Item  Three Months Ended Nine Months Ended  September 30, September 30,  2017 2016 2017 2016  (In thousands)  Unrealized gains and losses on  available for sale securities $ 86 $ 66 $ 86 $ 122 (Gain) loss on the sale of securities  (33) (25) (33) (46) Income tax effect  $ 53 $ 41 $ 53 $ 76 Net income  Unrealized gains and losses on  held to maturity securities $ 120 $ 105 $ 365 $ 326 Interest income  (46) (41) (139) (125) Income tax effect  $ 74 $ 64 $ 226 $ 201 Net income  Unrealized gains and losses on  cash flow hedges $ 190 $ 259 $ 609 $ 687 Interest expense  (72) (98) (231) (261) Income tax effect  $ 118 $ 161 $ 378 $ 426 Net income   Total reclassifications  for the period $ 245 $ 266 $ 657 $ 703 Net income 

Stock-Based Compensation (Table

Stock-Based Compensation (Tables)	9 Months Ended
	Sep. 30, 2017
Stock-Based Compensation [Abstract]
Stock-Based Compensation Change During The Period	   Shares Weighted Average Fair Value on Award Date  Unearned at January 1, 2017 513,187 $ 14.39  Awarded 114,302 24.89  Forfeited (6,291) 18.66  Vested (144,649) 14.07  Unearned at September 30, 2017 476,549 $ 16.95 

Capital Ratios (Tables)

Capital Ratios (Tables)	9 Months Ended
	Sep. 30, 2017
Capital Ratios [Abstract]
Schedule Of Company's And Bank's Capital Ratios	   Ratio at September 30, 2017 Ratio at December 31, 2016 Minimum Requirement for “Adequately Capitalized” Institution plus fully phased in Capital Conservation Buffer Minimum Requirement for "Well-Capitalized" Institution  Common Equity Tier 1 Risk-Based  Capital Ratio  Consolidated 10.56 % 10.46 % 7.00 % N/A  Guaranty Bank and Trust Company 12.23 % 12.43 % 7.00 % 6.50 %   Tier 1 Risk-Based Capital Ratio  Consolidated 11.40 % 11.34 % 8.50 % N/A  Guaranty Bank and Trust Company 12.23 % 12.43 % 8.50 % 8.00 %   Total Risk-Based Capital Ratio  Consolidated 13.50 % 13.58 % 10.50 % N/A  Guaranty Bank and Trust Company 13.00 % 13.26 % 10.50 % 10.00 %   Leverage Ratio  Consolidated 10.15 % 9.81 % 4.00 % N/A  Guaranty Bank and Trust Company 10.89 % 10.76 % 4.00 % 5.00 % 

Organization, Operations And 36

Organization, Operations And Basis Of Presentation (Narrative) (Details)	9 Months Ended
	Sep. 30, 2017USD ($)segment$ / sharesitemshares	Sep. 30, 2016USD ($)	Dec. 31, 2016USD ($)$ / shares	Sep. 08, 2016USD ($)
Organizations Operations And Basis Of Presentation [Line Items]
Number of days for an unsecured loan to become delinquent	90 days
Number of days past due before smaller loans trigger charge offs	90 days
Number of portfolio segment loans are designated into | segment	3
Number of customer relationship intangible assets acquired | item	3
Number of derivative categories | item	3
Shares authorized for repurchase | shares	1,000,000
Common stock, par value (in dollars per share) | $ / shares	$ 0.001		$ 0.001
Deferred Tax Assets, Net	$ 2,922,000		$ 4,846,000
Deferred Tax Assets, Valuation Allowance	0		0
Interest and penalties accrued	0		$ 0
Accounting Standards Update 2016-15 [Member]
Organizations Operations And Basis Of Presentation [Line Items]
Example of adoption	5,500,000
Accounting Standards Update 2016-09 [Member]
Organizations Operations And Basis Of Presentation [Line Items]
Effect on income taxes	582,000	$ 325,000
Home State Acquisition [Member]
Organizations Operations And Basis Of Presentation [Line Items]
PCI loans, fair value				$ 2,108,000
Purchased credit impaired loans included in loan portfolio	$ 809,000
2005 Stock Incentive Plan [Member]
Organizations Operations And Basis Of Presentation [Line Items]
Number of grants authorized | shares	1,700,000
2015 Stock Incentive Plan [Member]
Organizations Operations And Basis Of Presentation [Line Items]
Number of grants authorized | shares	935,000
Customer Relationship [Member]
Organizations Operations And Basis Of Presentation [Line Items]
Intangible assets, Useful life	10 years
Minimum [Member]
Organizations Operations And Basis Of Presentation [Line Items]
Vesting period	1 year
Minimum [Member] | Accounting Standards Update 2016-02 [Member]
Organizations Operations And Basis Of Presentation [Line Items]
Estimated impact on assets and liabilities	$ 9,000,000
Minimum [Member] | Core Deposits [Member]
Organizations Operations And Basis Of Presentation [Line Items]
Intangible assets, Useful life	10 years
Maximum [Member]
Organizations Operations And Basis Of Presentation [Line Items]
Vesting period	5 years
Maximum [Member] | Accounting Standards Update 2016-02 [Member]
Organizations Operations And Basis Of Presentation [Line Items]
Estimated impact on assets and liabilities	$ 11,000,000
Maximum [Member] | Core Deposits [Member]
Organizations Operations And Basis Of Presentation [Line Items]
Intangible assets, Useful life	15 years

Organization, Operations And 37

Organization, Operations And Basis Of Presentation (Earnings Loss Per Common Share) (Details) - shares		3 Months Ended		9 Months Ended
		Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Organization, Operations And Basis Of Presentation [Abstract]
Average common shares outstanding		27,920,658	22,811,386	27,900,627	21,750,153
Effect of dilutive unvested stock grants	[1]	199,453	173,261	239,705	245,702
Average shares outstanding for calculated diluted earnings per common share		28,120,111	22,984,647	28,140,332	21,995,855
Unvested stock grants		476,549	564,376	476,549	564,376	513,187
[1]	Unvested stock grants representing 476,549 shares at September 30, 2017 had a dilutive impact of 199,453 and 239,705 shares in the diluted earnings per share calculation for the three and nine months ended September 30, 2017, respectively. Unvested stock grants representing 564,376 shares at September 30, 2016 had a dilutive impact of 173,261 and 245,702 shares in the diluted earnings per share calculation for the three and nine months ended September 30, 2016, respectively.

Business Combinations (Narrativ

Business Combinations (Narrative) (Details) - USD ($)	Sep. 08, 2016	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Business Acquisition [Line Items]
Merger expenses			$ 2,205,000		$ 3,227,000
Goodwill		$ 56,404,000		$ 56,404,000		$ 56,404,000
Castle Rock Bank [Member]
Business Acquisition [Line Items]
Merger expenses		$ 268,000		268,000
Home State Acquisition [Member]
Business Acquisition [Line Items]
Value of acquisition	$ 152,478,000
Shares issued in acquisition	6,533,756
Value of shares issued in acquisition, gross	$ 117,477,000
Share Price	$ 17.98
Cash consideration for acquisition	$ 35,001,000
Merger expenses				$ 0
Goodwill	$ 56,404,000

Business Combinations (Schedule

Business Combinations (Schedule Of Assets And Liabilities Acquired) (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016	Sep. 08, 2016
Business Acquisition [Line Items]
Goodwill	$ 56,404	$ 56,404
Home State Acquisition [Member]
Business Acquisition [Line Items]
Cash and cash equivalents			$ 11,849
Time deposits with banks			504
Securities available-for-sale			396,450
Securities held-to-maturity			850
Bank stocks			1,477
Net Loans			445,529
Premises and equipment, net			22,950
Other real estate owned			45
Goodwill			56,404
Other intangible assets, net			11,701
Other assets			8,118
Total assets acquired			955,877
Deposits			769,709
Securities sold under agreement to repurchase and federal funds purchased			19,985
Federal Home Loan Bank term notes			2,525
Federal Home Loan Bank line of credit borrowing			2,052
Other liabilities			9,128
Total liabilities assumed			803,399
Net assets acquired			$ 152,478

Securities (Narrative) (Details

Securities (Narrative) (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017USD ($)security	Sep. 30, 2016USD ($)	Sep. 30, 2017USD ($)security	Sep. 30, 2016USD ($)	Dec. 31, 2016USD ($)security
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Accumulated credit losses	$ 0		$ 0		$ 0
Securities in an unrealized loss position | security	236		236		271
Securities in an unrealized loss position for 12 months or longer | security	162		162		10
Securities in an unrealized loss position for less than 12 months | security	74		74
Percent of Bank's municipal bond securities that are unrated	4.60%		4.60%		16.90%
Sale of securities	$ 48,320	$ 317,630	$ 48,320	$ 370,111
Securities Pledged As Collateral, Lines Of Credit, Public Deposits And Other [Member]
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Securites pledged as collateral	231,634		231,634		$ 237,036
Municipal Securities [Member]
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Sale of securities	24,115
Mortgage Backed Securities [Member] | Securities Pledged As Collateral, Overnight Repurchase Agreement Borrowings [Member]
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Securites pledged as collateral	$ 41,124		$ 41,124		$ 42,486

Securities (Fair Value Of Avail

Securities (Fair Value Of Available For Sale Debt Securities) (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Schedule of Available-for-sale Securities [Line Items]
Fair Value	$ 298,483	$ 324,228
Gross unrealized gains	1,075	776
Gross unrealized losses	(5,052)	(7,088)
Amortized cost	302,460	330,540
State And Municipal Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Fair Value	75,199	81,608
Gross unrealized gains	256	91
Gross unrealized losses	(1,328)	(2,542)
Amortized cost	76,271	84,059
Mortgage-Backed Securities - Agency/Residential [Member]
Schedule of Available-for-sale Securities [Line Items]
Fair Value	119,162	129,832
Gross unrealized gains	250	347
Gross unrealized losses	(2,434)	(3,117)
Amortized cost	121,346	132,602
Mortgage-Backed Securities - Private/Residential [Member]
Schedule of Available-for-sale Securities [Line Items]
Fair Value		265
Gross unrealized losses		(6)
Amortized cost		271
Corporate [Member]
Schedule of Available-for-sale Securities [Line Items]
Fair Value	88,299	86,246
Gross unrealized gains	556	288
Gross unrealized losses	(1,250)	(1,357)
Amortized cost	88,993	87,315
Collateralized Loan Obligations [Member]
Schedule of Available-for-sale Securities [Line Items]
Fair Value	15,823	26,277
Gross unrealized gains	13	50
Gross unrealized losses	(40)	(66)
Amortized cost	$ 15,850	$ 26,293

Securities (Unrecognized Gains

Securities (Unrecognized Gains And Losses Securities Held To Maturity) (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Schedule of Held-to-maturity Securities [Line Items]
Fair value	$ 257,571	$ 239,404
Gross Unrecognized Gains	2,023	1,261
Gross Unrecognized Losses	(2,993)	(5,836)
Amortized Cost	258,541	243,979
State And Municipal Securities [Member]
Schedule of Held-to-maturity Securities [Line Items]
Fair value	137,706	118,734
Gross Unrecognized Gains	1,305	745
Gross Unrecognized Losses	(1,212)	(3,120)
Amortized Cost	137,613	121,109
Mortgage-Backed Securities - Agency/Residential [Member]
Schedule of Held-to-maturity Securities [Line Items]
Fair value	101,916	100,565
Gross Unrecognized Gains	616	507
Gross Unrecognized Losses	(1,744)	(2,590)
Amortized Cost	103,044	102,648
Asset-Backed Securities [Member]
Schedule of Held-to-maturity Securities [Line Items]
Fair value	16,749	18,905
Gross Unrecognized Gains	102	9
Gross Unrecognized Losses	(37)	(126)
Amortized Cost	16,684	19,022
Other [Member]
Schedule of Held-to-maturity Securities [Line Items]
Fair value	1,200	1,200
Amortized Cost	$ 1,200	$ 1,200

Securities (Proceeds From Sales

Securities (Proceeds From Sales And Calls Of Securities) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Securities [Abstract]
Proceeds	$ 48,320	$ 317,630	$ 48,320	$ 370,111
Gross gains	254	1,434	254	2,486
Gross losses	(340)	(1,500)	(340)	(2,608)
Net tax (benefit) expense related to gains (losses) on sale	$ (33)	$ (25)	$ (33)	$ (46)

Securities (Investments Classif

Securities (Investments Classified by Contractual Maturity Date) (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Due in one year or less, Amortized Cost	$ 5,047
Due after one years through five years, Amortized cost	11,676
Due after five years through ten years, Amortized cost	96,272
Due after ten years, Amortized cost	52,269
Total AFS, excluding mortgage-backed (MBS) and collaterized loan obligations, Amortized cost	165,264
Mortgage-backed and collaterized loan obligations, Amortized cost	137,196
Total securities available for sale, Amortized cost	302,460
Due in one year or less, Fair value	5,083
Due after one year through five years, Fair value	11,797
Due after five years through ten years, Fair value	94,754
Due after ten years, Fair value	51,864
Total AFS, excluding mortgage-backed (MBS) and collaterized loan obligations, Fair value	163,498
Mortgage-backed and collaterized loan obligations, Fair value	134,985
Total securities available for sale, Fair value	298,483	$ 324,228
Securities held to maturity, Due in one year or less, Amortized Cost	150
Securities held to maturity, Due after one year through five years, Amortized cost	12,948
Securities held to maturity, Due after five years through ten years, Amortized cost	76,660
Securities held to maturity, Due after ten years, Amortized cost	49,055
Total HTM, excluding MBS and asset-backed, Amortized cost	138,813
Total securities held to maturity, Amortized cost	258,541	243,979
Securities held to maturity, Due in one year or less, Fair value	150
Securities held to maturity, Due after one year through five years, Fair value	13,139
Securities held to maturity, Due after five years through ten years, Fair value	76,546
Securities held to maturity, Due after ten years, Fair value	49,071
Total HTM, excluding MBS, asset-backed, Fair value	138,906
Securities held to maturity, Fair value	257,571	$ 239,404
Mortgage Backed And Asset Backed Securities [Member]
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Securities held to maturity, Mortgage-backed and asset-backed, Amortized cost	119,728
Securities held to maturity, Mortgage-backed and asset-backed, Fair value	$ 118,665

Securities (Fair Value And The

Securities (Fair Value And The Unrealized Loss On Temporarily Impaired Securities) (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Held to maturity, Total, Unrealized losses	$ (2,993)	$ (5,836)
Total temporarily impaired, Less than 12 months, Fair value	189,640	407,218
Total temporarily impaired, More than 12 months, Fair Value	207,979	24,511
Total temporarily impaired, Total, Fair value	397,619	431,729
Total temporarily impaired, Less than 12 months, Unrealized losses	(3,888)	(14,177)
Total temporarily impaired, More than 12 months, Unrealized losses	(5,768)	(1,056)
Total temporarily impaired, Total, Unrealized losses	(9,656)	(15,233)
State And Municipal Securities [Member]
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Available for sale, Less than 12 months, Fair value	23,546	47,434
Available for sale, 12 months or more, Fair value	32,002
Available for sale, Total, Fair value	55,548	47,434
Available for sale, Less than 12 months, Unrealized losses	(247)	(2,542)
Available for sale, 12 months or more, Unrealized losses	(1,081)
Available for sale, Total, Unrealized losses	(1,328)	(2,542)
Held to maturity, Less than 12 months, Fair value	23,722	90,959
Held to maturity, 12 months or more, Fair value	63,138	596
Held to maturity, Total, Fair value	86,860	91,555
Held to maturity, Less than 12 months, Unrealized losses	(382)	(3,804)
Held to maturity, 12 months or more, Unrealized losses	(1,556)	(259)
Held to maturity, Total, Unrealized losses	(1,938)	(4,063)
Mortgage-Backed Securities - Agency/Residential [Member]
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Available for sale, Less than 12 months, Fair value	57,323	93,909
Available for sale, 12 months or more, Fair value	35,532	9,526
Available for sale, Total, Fair value	92,855	103,435
Available for sale, Less than 12 months, Unrealized losses	(1,086)	(2,782)
Available for sale, 12 months or more, Unrealized losses	(1,348)	(335)
Available for sale, Total, Unrealized losses	(2,434)	(3,117)
Held to maturity, Less than 12 months, Fair value	35,539	99,920
Held to maturity, 12 months or more, Fair value	49,796
Held to maturity, Total, Fair value	85,335	99,920
Held to maturity, Less than 12 months, Unrealized losses	(1,312)	(3,442)
Held to maturity, 12 months or more, Unrealized losses	(1,006)
Held to maturity, Total, Unrealized losses	(2,318)	(3,442)
Mortgage-Backed Securities - Private/Residential [Member]
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Available for sale, Less than 12 months, Fair value		265
Available for sale, Total, Fair value		265
Available for sale, Less than 12 months, Unrealized losses		(6)
Available for sale, Total, Unrealized losses		(6)
Asset-Backed Securities [Member]
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Held to maturity, Less than 12 months, Fair value		15,690
Held to maturity, 12 months or more, Fair value	16,749	3,216
Held to maturity, Total, Fair value	16,749	18,906
Held to maturity, Less than 12 months, Unrealized losses		(542)
Held to maturity, 12 months or more, Unrealized losses	(348)	(98)
Held to maturity, Total, Unrealized losses	(348)	(640)
Corporate [Member]
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Available for sale, Less than 12 months, Fair value	38,940	49,964
Available for sale, 12 months or more, Fair value	10,762	5,685
Available for sale, Total, Fair value	49,702	55,649
Available for sale, Less than 12 months, Unrealized losses	(821)	(1,042)
Available for sale, 12 months or more, Unrealized losses	(429)	(315)
Available for sale, Total, Unrealized losses	(1,250)	(1,357)
Collateralized Loan Obligations [Member]
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]
Available for sale, Less than 12 months, Fair value	10,570	9,077
Available for sale, 12 months or more, Fair value		5,488
Available for sale, Total, Fair value	10,570	14,565
Available for sale, Less than 12 months, Unrealized losses	(40)	(17)
Available for sale, 12 months or more, Unrealized losses		(49)
Available for sale, Total, Unrealized losses	$ (40)	$ (66)

Loans (Narrative) (Details)

Loans (Narrative) (Details)	3 Months Ended			9 Months Ended		12 Months Ended
	Sep. 30, 2017USD ($)loan	Mar. 31, 2017USD ($)	Sep. 30, 2016USD ($)loan	Sep. 30, 2017USD ($)loanitem	Sep. 30, 2016USD ($)loanitem	Dec. 31, 2016USD ($)
Loans and Leases Receivable Disclosure [Line Items]
Purchased loans and leases				$ 79,200,000		$ 109,500,000
Gross interest income on nonaccrual loans	$ 24,000		$ 77,000	173,000	$ 209,000
Cash-basis interest income			$ 83,000	0	$ 332,000
Interest income, nonaccrual loan paid off	892,000
Book balance of troubled debt restructurings	12,405,000			12,405,000		25,219,000
Specific reserves	141,000			141,000		74,000
Amounts committed on loans designated as TDRs	$ 3,101,000			$ 3,101,000		$ 2,238,000
Number of loans modified in troubled debt restructuring | loan	4		1	23	3
Pre-Modification Outstanding Recorded Investment	$ 475,000		$ 2,900,000	$ 4,543,000	$ 4,765,000
Defaults on TDRs | item				0	0
Troubled debt restructurings charge-off	$ 0		$ 0	$ 0	$ 0
Payment Terms [Member]
Loans and Leases Receivable Disclosure [Line Items]
Number of loans modified in troubled debt restructuring | loan	2			12	2
Loan Renewal [Member]
Loans and Leases Receivable Disclosure [Line Items]
Number of loans modified in troubled debt restructuring | loan	2			11
Interest Rate Below Market Reduction [Member]
Loans and Leases Receivable Disclosure [Line Items]
Number of loans modified in troubled debt restructuring | loan					1
Credit Card Loan Portfolio [Member]
Loans and Leases Receivable Disclosure [Line Items]
Gain on sale of loan portfolio		$ 271,000
Sale of credit card loan portfolio		$ 2,000,000

Loans (Loans Held For Investmen

Loans (Loans Held For Investment By Loan Type) (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total gross loans	$ 2,661,492	$ 2,515,070
Deferred costs and (fees)	60	(61)
Loans, held for investment, net	2,661,552	2,515,009
Less allowance for loan losses	(22,900)	(23,250)
Net loans, held for investment	2,638,652	2,491,759
Commercial And Residential Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total gross loans	1,892,828	1,768,424
Construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total gross loans	81,826	88,451
Commercial Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total gross loans	449,450	432,083
Agricultural Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total gross loans	15,824	16,690
Consumer Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total gross loans	124,625	125,264
SBA [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total gross loans	45,935	52,380
Other Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total gross loans	$ 51,004	$ 31,778

Loans (Allowance For Loan Losse

Loans (Allowance For Loan Losses) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Loans [Abstract]
Balance, beginning of period	$ 23,125	$ 23,050	$ 23,250	$ 23,000
Provision for loan losses	497	27	708	53
Loans charged-off	(970)	(72)	(1,433)	(431)
Recoveries on loans previously charged-off	248	295	375	678
Balance, end of period	$ 22,900	$ 23,300	$ 22,900	$ 23,300

Loans (Allowance For Loan Los49

Loans (Allowance For Loan Losses And Loans Held For Investment By Portfolio Segment) (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
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, beginning of period	$ 23,125	$ 23,050	$ 23,250	$ 23,000
Charge-offs	(970)	(72)	(1,433)	(431)
Recoveries	248	295	375	678
Provision (credit)	497	27	708	53
Balance, end of period	22,900	23,300	22,900	23,300
Allowance for Loan Losses, Individually evaluated					$ 698	$ 222
Allowance for Loan Losses, Collectively evaluated					22,202	23,028
Allowance for Loan Losses, Total	23,125	23,050	23,250	23,000	22,900	23,250
Loans, Individually evaluated					15,733	30,375
Loans, Collectively evaluated					2,645,819	2,484,634
Financing Receivable, Net, Total					2,661,552	2,515,009
Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, beginning of period	19,400	20,171	20,082	20,306
Charge-offs	(250)	(9)	(383)	(213)
Recoveries	21	150	86	235
Provision (credit)	(301)	(127)	(915)	(143)
Balance, end of period	18,870	20,185	18,870	20,185
Allowance for Loan Losses, Individually evaluated					27	29
Allowance for Loan Losses, Collectively evaluated					18,843	20,053
Allowance for Loan Losses, Total	19,400	20,171	20,082	20,306	18,870	20,082
Loans, Individually evaluated					10,155	22,728
Loans, Collectively evaluated					2,129,684	2,024,524
Financing Receivable, Net, Total					2,139,839	2,047,252
Consumer And Installment [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, beginning of period	193	75	105	71
Charge-offs	(75)	(5)	(92)	(12)
Recoveries	4	2	11	13
Provision (credit)	61	(15)	159	(15)
Balance, end of period	183	57	183	57
Allowance for Loan Losses, Collectively evaluated					183	105
Allowance for Loan Losses, Total	193	75	105	71	183	105
Loans, Individually evaluated					1	2
Loans, Collectively evaluated					60,482	55,182
Financing Receivable, Net, Total					60,483	55,184
Commercial And Other [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, beginning of period	3,532	2,804	3,063	2,623
Charge-offs	(645)	(58)	(958)	(206)
Recoveries	223	143	278	430
Provision (credit)	737	169	1,464	211
Balance, end of period	3,847	3,058	3,847	3,058
Allowance for Loan Losses, Individually evaluated					671	193
Allowance for Loan Losses, Collectively evaluated					3,176	2,870
Allowance for Loan Losses, Total	$ 3,532	$ 2,804	$ 3,063	$ 2,623	3,847	3,063
Loans, Individually evaluated					5,577	7,645
Loans, Collectively evaluated					455,653	404,928
Financing Receivable, Net, Total					$ 461,230	$ 412,573

Loans (Schedule Of Impaired Loa

Loans (Schedule Of Impaired Loans) (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2017	Dec. 31, 2016
Financing Receivable, Impaired [Line Items]
Impaired loans with no related allowance, Recorded Investment	$ 11,405	$ 21,534
Impaired loans with related allowance, Recorded Investment	4,328	8,841
Total Impaired Loans, Recorded Investment	15,733	30,375
Impaired loans with no related allowance, Unpaid Balance	13,246	23,013
Impaired loans with related allowance, Unpaid Balance	4,653	9,140
Total Impaired Loans, Unpaid Balance	17,899	32,153
Total Impaired Loans, Related Allowance	698	222
Impaired loans with no related allowance, Average Recorded Investment YTD	19,362	15,320
Impaired loans with related allowance, Average Recorded Investment YTD	6,247	12,264
Total Impaired Loans, Average Related Investment YTD	25,609	27,584
Impaired loans with no related allowance, Interest Income Recognized YTD	2,111	1,929
Impaired loans with related allowance, Interest Income Recognized YTD	74	362
Total Impaired Loans, Interest Income Recognized YTD	2,185	2,291
Commercial And Residential Real Estate [Member]
Financing Receivable, Impaired [Line Items]
Impaired loans with no related allowance, Recorded Investment	9,974	20,477
Impaired loans with related allowance, Recorded Investment	27	1,767
Total Impaired Loans, Recorded Investment	10,001	22,244
Impaired loans with no related allowance, Unpaid Balance	10,479	21,140
Impaired loans with related allowance, Unpaid Balance	135	1,890
Total Impaired Loans, Unpaid Balance	10,614	23,030
Total Impaired Loans, Related Allowance	1	19
Impaired loans with no related allowance, Average Recorded Investment YTD	17,713	13,875
Impaired loans with related allowance, Average Recorded Investment YTD	962	8,590
Total Impaired Loans, Average Related Investment YTD	18,675	22,465
Impaired loans with no related allowance, Interest Income Recognized YTD	1,967	1,911
Impaired loans with related allowance, Interest Income Recognized YTD		44
Total Impaired Loans, Interest Income Recognized YTD	1,967	1,955
Construction Loans [Member]
Financing Receivable, Impaired [Line Items]
Impaired loans with no related allowance, Average Recorded Investment YTD		592
Total Impaired Loans, Average Related Investment YTD		592
Commercial Loans [Member]
Financing Receivable, Impaired [Line Items]
Impaired loans with no related allowance, Recorded Investment	843	222
Impaired loans with related allowance, Recorded Investment	2,186	6,371
Total Impaired Loans, Recorded Investment	3,029	6,593
Impaired loans with no related allowance, Unpaid Balance	1,336	229
Impaired loans with related allowance, Unpaid Balance	2,262	6,423
Total Impaired Loans, Unpaid Balance	3,598	6,652
Total Impaired Loans, Related Allowance	69	155
Impaired loans with no related allowance, Average Recorded Investment YTD	856	243
Impaired loans with related allowance, Average Recorded Investment YTD	4,126	2,937
Total Impaired Loans, Average Related Investment YTD	4,982	3,180
Impaired loans with no related allowance, Interest Income Recognized YTD	126	16
Impaired loans with related allowance, Interest Income Recognized YTD	54	309
Total Impaired Loans, Interest Income Recognized YTD	180	325
Consumer Loans [Member]
Financing Receivable, Impaired [Line Items]
Impaired loans with no related allowance, Recorded Investment	17	18
Impaired loans with related allowance, Recorded Investment	579	306
Total Impaired Loans, Recorded Investment	596	324
Impaired loans with no related allowance, Unpaid Balance	19	19
Impaired loans with related allowance, Unpaid Balance	665	383
Total Impaired Loans, Unpaid Balance	684	402
Total Impaired Loans, Related Allowance	8	9
Impaired loans with no related allowance, Average Recorded Investment YTD	18	117
Impaired loans with related allowance, Average Recorded Investment YTD	366	389
Total Impaired Loans, Average Related Investment YTD	384	506
Impaired loans with no related allowance, Interest Income Recognized YTD		2
Impaired loans with related allowance, Interest Income Recognized YTD	16	9
Total Impaired Loans, Interest Income Recognized YTD	16	11
Other [Member]
Financing Receivable, Impaired [Line Items]
Impaired loans with no related allowance, Recorded Investment	571	817
Impaired loans with related allowance, Recorded Investment	1,536	397
Total Impaired Loans, Recorded Investment	2,107	1,214
Impaired loans with no related allowance, Unpaid Balance	1,412	1,625
Impaired loans with related allowance, Unpaid Balance	1,591	444
Total Impaired Loans, Unpaid Balance	3,003	2,069
Total Impaired Loans, Related Allowance	620	39
Impaired loans with no related allowance, Average Recorded Investment YTD	775	493
Impaired loans with related allowance, Average Recorded Investment YTD	793	348
Total Impaired Loans, Average Related Investment YTD	1,568	$ 841
Impaired loans with no related allowance, Interest Income Recognized YTD	18
Impaired loans with related allowance, Interest Income Recognized YTD	4
Total Impaired Loans, Interest Income Recognized YTD	$ 22

Loans (Summary Of Past Due Loan

Loans (Summary Of Past Due Loans By Class) (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-89 Days Past Due	$ 9,129	$ 1,337
90 Days + Past Due and Still Accruing
Nonaccrual	4,744	5,247
Total Nonaccrual and Past Due	13,873	6,584
Total Loans	2,661,552	2,515,009
Commercial And Residential Real Estate [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-89 Days Past Due	113	1,258
90 Days + Past Due and Still Accruing
Nonaccrual	1,722	2,835
Total Nonaccrual and Past Due	1,835	4,093
Total Loans	1,892,870	1,768,381
Construction Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
90 Days + Past Due and Still Accruing
Total Loans	81,828	88,449
Commercial Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-89 Days Past Due	8,879	37
90 Days + Past Due and Still Accruing
Nonaccrual	844	1,094
Total Nonaccrual and Past Due	9,723	1,131
Total Loans	449,460	432,072
Consumer Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-89 Days Past Due	137	42
90 Days + Past Due and Still Accruing
Nonaccrual	264	201
Total Nonaccrual and Past Due	401	243
Total Loans	124,628	125,261
Other [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
90 Days + Past Due and Still Accruing
Nonaccrual	1,914	1,117
Total Nonaccrual and Past Due	1,914	1,117
Total Loans	$ 112,766	$ 100,846

Loans (Summary Of The Risk Cate

Loans (Summary Of The Risk Category Of Loans By Class Of Loans) (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Financing Receivable, Recorded Investment [Line Items]
Subtotal	$ 2,661,492	$ 2,515,070
Deferred costs and fees	60	(61)
Loans, held for investment, net	2,661,552	2,515,009
Non-classified [Member]
Financing Receivable, Recorded Investment [Line Items]
Subtotal	2,633,306	2,482,196
Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Subtotal	28,186	32,874
Commercial And Residential Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Subtotal	1,892,828	1,768,424
Deferred costs and fees	42	(43)
Loans, held for investment, net	1,892,870	1,768,381
Commercial And Residential Real Estate [Member] | Non-classified [Member]
Financing Receivable, Recorded Investment [Line Items]
Subtotal	1,880,451	1,742,974
Commercial And Residential Real Estate [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Subtotal	12,377	25,450
Construction Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Subtotal	81,826	88,451
Deferred costs and fees	2	(2)
Loans, held for investment, net	81,828	88,449
Construction Loans [Member] | Non-classified [Member]
Financing Receivable, Recorded Investment [Line Items]
Subtotal	81,826	88,451
Commercial Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Subtotal	449,450	432,083
Deferred costs and fees	10	(11)
Loans, held for investment, net	449,460	432,072
Commercial Loans [Member] | Non-classified [Member]
Financing Receivable, Recorded Investment [Line Items]
Subtotal	438,512	427,278
Commercial Loans [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Subtotal	10,938	4,805
Consumer Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Subtotal	124,625	125,264
Deferred costs and fees	3	(3)
Loans, held for investment, net	124,628	125,261
Consumer Loans [Member] | Non-classified [Member]
Financing Receivable, Recorded Investment [Line Items]
Subtotal	124,248	124,932
Consumer Loans [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Subtotal	377	332
Other [Member]
Financing Receivable, Recorded Investment [Line Items]
Subtotal	112,763	100,848
Deferred costs and fees	3	(2)
Loans, held for investment, net	112,766	100,846
Other [Member] | Non-classified [Member]
Financing Receivable, Recorded Investment [Line Items]
Subtotal	108,269	98,561
Other [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Subtotal	$ 4,494	$ 2,287

Goodwill And Other Intangible53

Goodwill And Other Intangible Assets (Narrative) (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016	Sep. 08, 2016
Business Acquisition [Line Items]
Goodwill	$ 56,404	$ 56,404
Home State Bancorp Acquisition [Member]
Business Acquisition [Line Items]
Goodwill			$ 56,404

Goodwill And Other Intangible54

Goodwill And Other Intangible Assets (Schedule Of Finite Lived Intangible Assets And Related Accumulated Amortization) (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2017	Dec. 31, 2016
Finite-Lived Intangible Assets [Line Items]
Intangible assets, net	$ 13,348	$ 15,317
Core Deposits [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets	74,087	74,087
Intangible asset accumulated amortization	(64,642)	(63,112)
Intangible assets, net	$ 9,445	10,975
Core Deposits [Member] | Maximum [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, Useful life	15 years
Core Deposits [Member] | Minimum [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, Useful life	10 years
Customer Relationship [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets	$ 6,243	6,243
Intangible asset accumulated amortization	(2,340)	(1,901)
Intangible assets, net	$ 3,903	$ 4,342
Intangible assets, Useful life	10 years

Borrowings (Details)

Borrowings (Details)	9 Months Ended
	Sep. 30, 2017USD ($)loan	Dec. 31, 2016USD ($)
Debt Instrument [Line Items]
Outstanding borrowings	$ 121,182,000	$ 197,168,000
Federal Home Loan Bank term notes	70,000,000	72,477,000
Federal Home Loan Bank line of credit borrowing	51,182,000	124,691,000
Pledging and security agreement with FHLB	986,585,000	854,057,000
Total FHLB borrowing capacity	690,755,000	597,202,000
Remaining credit allowance for future borrowings	$ 568,240,000	$ 400,102,000
Interest rate on the line of credit	1.28%
Number of FHLB term notes | loan	3
Line of Credit [Member]
Debt Instrument [Line Items]
Advances on line of credit	$ 0
FHLB Term Note 1 [Member]
Debt Instrument [Line Items]
Federal Home Loan Bank term notes	$ 20,000,000
Current Rate	2.52%
Maturity Date	Jan. 23, 2018
FHLB Term Note 4 [Member]
Debt Instrument [Line Items]
Federal Home Loan Bank term notes	$ 25,000,000
Current Rate	1.28%
Maturity Date	Mar. 7, 2018
FHLB Term Note 5 [Member]
Debt Instrument [Line Items]
Federal Home Loan Bank term notes	$ 25,000,000
Current Rate	1.37%
Maturity Date	Aug. 3, 2018
Wells Fargo [Member] | Line of Credit [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity on line of credit	$ 10,000,000

Subordinated Debentures And T56

Subordinated Debentures And Trust Preferred Securities (Narrative) (Details)	9 Months Ended
	Sep. 30, 2017USD ($)item	Dec. 31, 2016USD ($)
Subordinated Borrowing [Line Items]
Debt before debt issuance cost	$ 65,774,000	$ 65,774,000
Debt issuance cost	$ 730,000	793,000
Subordinated debentures outstanding weighted average cost, percent	5.12%
Subordinated debenture maturity in years	30 years
Trust preferred securities	$ 25,000,000
Number of subordinated debentures issued | item	3
Subordinated debt, unpaid interest	$ 726,000	1,286,000
Percent of Tier 1 capital, maximum	25.00%
Securities issued by the trusts qualify as Tier 2 capital threshold, percent	25.00%
Trusts' securities qualified as Tier 1 capital	$ 25,000,000
Securities qualified as Tier 2 capital	40,000,000
Limit on total assets to qualify as Tier 1 capital	15,000,000,000
Total assets	$ 3,510,046,000	$ 3,366,427,000
Minimum [Member]
Subordinated Borrowing [Line Items]
Debentures callable to subsequent time period in years	5 years
Maximum [Member]
Subordinated Borrowing [Line Items]
Debentures callable to subsequent time period in years	10 years
Total assets	$ 15,000,000,000
Subordinated Notes [Member]
Subordinated Borrowing [Line Items]
Subordinated notes	$ 40,000,000
Initial fixed interest rate	5.75%
Variable rate	4.73%
Current Rate	5.75%

Subordinated Debentures And T57

Subordinated Debentures And Trust Preferred Securities (Schedule Of Subordinated Debenture Issuance) (Details) - USD ($) $ in Thousands		9 Months Ended
		Sep. 30, 2017	Oct. 15, 2017	Oct. 07, 2017	Dec. 31, 2016
Subordinated Borrowing [Line Items]
Subordinated Debt		$ 65,044			$ 64,981
Subordinated Notes [Member]
Subordinated Borrowing [Line Items]
Date Issued		Jul. 18, 2016
Subordinated Debt		$ 40,000
Maturity Date		Jul. 20, 2026
Fixed Or Variable		Fixed
Rate Adjuster		4.73%
Current Rate		5.75%
Next Rate Reset Date	[1]	Jul. 20, 2021
Initial fixed interest rate		5.75%
Variable rate		4.73%
CenBank Trust III [Member]
Subordinated Borrowing [Line Items]
Date Issued		Apr. 8, 2004
Subordinated Debt		$ 15,464
Maturity Date		Apr. 15, 2034
Call Date	[2]	Jan. 15, 2018
Fixed Or Variable		Variable
Rate Adjuster		2.65%
Current Rate		3.95%	4.01%
Next Rate Reset Date	[1]	Jan. 15, 2018
Guaranty Capital Trust [Member]
Subordinated Borrowing [Line Items]
Date Issued		Jun. 30, 2003
Subordinated Debt		$ 10,310
Maturity Date		Jul. 7, 2033
Call Date	[2]	Jan. 7, 2018
Fixed Or Variable		Variable
Rate Adjuster		3.10%
Current Rate		4.40%		4.46%
Next Rate Reset Date	[1]	Jan. 7, 2018
[1]	On October 7, 2017, the rate on the Guaranty Capital Trust III subordinated debentures reset to 4.46%. On October 15, 2017, the rate on the CenBank Trust III subordinated debentures reset to 4.01%. The subordinated notes issued July 18, 2016 are fixed at 5.75% until July 20, 2021 at which point the notes convert to floating rate at three-month LIBOR plus 4.73%.
[2]	Call date represents the earliest or next date the Company can call the debentures.

Commitments (Details)

Commitments (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2017	Dec. 31, 2016
Other Commitments [Line Items]
Commitments to extend credit, Variable	$ 470,152	$ 436,546
Commitments to extend credit, Fixed	105,198	95,607
Total commitments to extend credit	575,350	532,153
Standby letters of credit	$ 12,694	$ 10,292
Letters of credit issued expiration time period, maximum	1 year
Minimum [Member]
Other Commitments [Line Items]
Fixed rate commitments to extend credit	2.90%
Maximum [Member]
Other Commitments [Line Items]
Fixed rate commitments to extend credit	6.75%

Fair Value Measurements And F59

Fair Value Measurements And Fair Value Of Financial Instruments (Narrative) (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Fair Value Measurements And Fair Value Of Financial Instruments [Abstract]
Asset transfers			$ 0
Liability transfers			0
Other comprehensive income (loss) related to asset valuation	$ 0	$ 0	$ 0	$ 0

Fair Value Measurements And F60

Fair Value Measurements And Fair Value Of Financial Instruments (Financial Assets And Liabilities Measured On A Recurring Basis) (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
State And Municipal Securities [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Assets, Fair Value Disclosure, Recurring	$ 75,199	$ 81,608
State And Municipal Securities [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Assets, Fair Value Disclosure, Recurring	67,798	49,856
State And Municipal Securities [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Assets, Fair Value Disclosure, Recurring	7,401	31,752
Mortgage-Backed Securities - Agency/Residential [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Assets, Fair Value Disclosure, Recurring	119,162	129,832
Mortgage-Backed Securities - Agency/Residential [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Assets, Fair Value Disclosure, Recurring	119,162	129,832
Mortgage-Backed Securities - Private/Residential [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Assets, Fair Value Disclosure, Recurring		265
Mortgage-Backed Securities - Private/Residential [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Assets, Fair Value Disclosure, Recurring		265
Corporate Securities [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Assets, Fair Value Disclosure, Recurring	88,299	86,246
Corporate Securities [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Assets, Fair Value Disclosure, Recurring	88,299	86,246
Collateralized Loan Obligations [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Assets, Fair Value Disclosure, Recurring	15,823	26,277
Collateralized Loan Obligations [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Assets, Fair Value Disclosure, Recurring	15,823	26,277
Interest Rate Swap - Cash Flow Hedge [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Liabilities, Fair Value Disclosure, Recurring	(1,507)	(1,929)
Interest Rate Swap - Cash Flow Hedge [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Liabilities, Fair Value Disclosure, Recurring	$ (1,507)	$ (1,929)

Fair Value Measurements And F61

Fair Value Measurements And Fair Value Of Financial Instruments (Fair Value Measurements Using Significant Unobservable Inputs Level 3) (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total unrealized gains (losses), Other comprehensive income (loss)	$ 0	$ 0	$ 0	$ 0
Significant Unobservable Inputs (Level 3) [Member] | State And Municipal Securities [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning Balance	31,595,000	31,909,000	31,752,000	32,040,000
Total unrealized gains (losses), Net income	1,000	2,000	5,000	5,000
Total unrealized gains (losses), Other comprehensive income (loss)
Sales, calls and prepayments	(24,195,000)	(81,000)	(24,356,000)	(215,000)
Acquisition of Level 3 security		131,000		131,000
Transfers in and (out) of Level 3
Ending Balance	$ 7,401,000	$ 31,961,000	$ 7,401,000	$ 31,961,000

Fair Value Measurements And F62

Fair Value Measurements And Fair Value Of Financial Instruments (Quantitative Information About Level 3 Fair Value Measurements) (Details) - State And Municipal Securities [Member] - Significant Unobservable Inputs (Level 3) [Member] - USD ($) $ in Thousands	Sep. 30, 2017	Jun. 30, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Dec. 31, 2015
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total	$ 7,401	$ 31,595	$ 31,752	$ 31,961	$ 31,909	$ 32,040
Discounted Cash Flow [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total	$ 7,401		$ 31,752
Maximum [Member] | Discounted Cash Flow [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Valuation Technique Range	2.75%		4.75%
Minimum [Member] | Discounted Cash Flow [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Valuation Technique Range	2.25%		2.29%

Fair Value Measurements And F63

Fair Value Measurements And Fair Value Of Financial Instruments (Estimated Fair Values And Related Carrying Amounts Of Financial Instruments) (Details) - USD ($)	Sep. 30, 2017	Dec. 31, 2016
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities available for sale	$ 298,483,000	$ 324,228,000
Securities held to maturity, Fair value	257,571,000	239,404,000
Bank stocks	19,435,000	22,649,000
Short-term borrowings	51,182,000	124,691,000
Carrying Amount [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	64,388,000	50,111,000
Time deposits with banks	254,000	254,000
Securities available for sale	298,483,000	324,228,000
Securities held to maturity, Fair value	258,541,000	243,979,000
Bank stocks	19,435,000	22,649,000
Loans held for sale	314,000	4,129,000
Loans held for investment, net	2,638,652,000	2,491,759,000
Accrued interest receivable	10,868,000	9,825,000
Deposits	2,898,060,000	2,699,084,000
Federal funds purchased and sold under agreements to repurchase	37,943,000	36,948,000
Short-term borrowings	51,182,000	124,691,000
Subordinated debentures	65,044,000	64,981,000
Long-term borrowings	70,000,000	72,477,000
Accrued interest payable	1,194,000	1,661,000
Interest rate swap - cash flow hedge	1,507,000	1,929,000
Fair Value Measurement [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	64,388,000	50,111,000
Time deposits with banks	254,000	254,000
Securities available for sale	298,483,000	324,228,000
Securities held to maturity, Fair value	257,571,000	239,404,000
Loans held for sale	345,000	4,542,000
Loans held for investment, net	2,615,217,000	2,504,144,000
Accrued interest receivable	10,868,000	9,825,000
Deposits	2,895,570,000	2,696,766,000
Federal funds purchased and sold under agreements to repurchase	37,943,000	36,948,000
Short-term borrowings	51,182,000	124,691,000
Subordinated debentures	61,004,000	60,048,000
Long-term borrowings	70,008,000	72,769,000
Accrued interest payable	1,194,000	1,661,000
Interest rate swap - cash flow hedge	1,507,000	1,929,000
Fair Value Measurement [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	64,388,000	50,111,000
Time deposits with banks	254,000	254,000
Loans held for sale	345,000	4,542,000
Fair Value Measurement [Member] | Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities available for sale	291,082,000	292,476,000
Securities held to maturity, Fair value	255,012,000	236,857,000
Accrued interest receivable	10,868,000	9,825,000
Deposits	2,895,570,000	2,696,766,000
Federal funds purchased and sold under agreements to repurchase	37,943,000	36,948,000
Short-term borrowings	51,182,000	124,691,000
Long-term borrowings	70,008,000	72,769,000
Accrued interest payable	1,194,000	1,661,000
Interest rate swap - cash flow hedge	1,507,000	1,929,000
Fair Value Measurement [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities available for sale	7,401,000	31,752,000
Securities held to maturity, Fair value	2,559,000	2,547,000
Loans held for investment, net	2,615,217,000	2,504,144,000
Subordinated debentures	$ 61,004,000	$ 60,048,000

Derivatives And Hedging Activ64

Derivatives And Hedging Activities (Narrative) (Details)	9 Months Ended
	Sep. 30, 2017USD ($)
Derivative Instruments, Gain (Loss) [Line Items]
Amount expected to be reclassified from AOCI into interest expense	$ 598,000
The amount of collateral posted in relation to the company's obligation to the swap counterparty	3,814,000
Interest Rate Swap - Cash Flow Hedge [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Notional amount designated as cash flow hedge	50,000,000
Interest Rate Swap, Swap 1 [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Notional amount designated as cash flow hedge	$ 25,000,000
Fixed interest rate	2.46%
Interest Rate Swap, Swap 2 [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Notional amount designated as cash flow hedge	$ 25,000,000
Fixed interest rate	3.00%

Derivatives And Hedging Activ65

Derivatives And Hedging Activities (Schedule Of Derivative Financial Instruments As Well As Their Classification On The Balance Sheet) (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Interest Rate Swap - Cash Flow Hedge [Member] | Other Liabilities [Member] | Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Derivative Liabilities	$ 1,507	$ 1,929

Derivatives And Hedging Activ66

Derivatives And Hedging Activities (Summary Of Interest Rate Swaps Designated As Cash Flow Hedges) (Details) - Interest Rate Swap - Cash Flow Hedge [Member] - USD ($)	9 Months Ended	12 Months Ended
	Sep. 30, 2017	Dec. 31, 2016
Derivative [Line Items]
Notional amounts	$ 50,000,000	$ 50,000,000
Weighted average pay rates	2.73%	2.73%
Weighted average receive rates	3 month LIBOR
Weighted average maturity	3 years 1 month 6 days	3 years 10 months 24 days
Unrealized gains (losses)	$ (1,507,000)	$ (1,929,000)

Derivatives And Hedging Activ67

Derivatives And Hedging Activities (Schedule Of Derivative Financial Instruments On Both Comprehensive Income And Net Income) (Details) - Interest Rate Swap - Cash Flow Hedge [Member] - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Derivative Instruments, Gain (Loss) [Line Items]
Gain or (loss) recognized in OCI on derivative - net of tax	$ 20	$ 235	$ (116)	$ (963)
Interest Expense [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain or (loss) reclassified from accumulated OCI into income (effective portion) - net of tax	$ 118	$ 161	$ 378	$ 426

Accumulated Other Comprehensi68

Accumulated Other Comprehensive Income (Schedule Of Changes Within AOCI) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance			$ 352,378	$ 221,639
Other comprehensive income (loss)	$ 321	$ 901	1,935	1,869
Balance	375,152	351,360	375,152	351,360
Unrealized Gains and Losses On Available For Sale Securities [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance	(2,575)	(39)	(3,913)	(1,803)
Other comprehensive income (loss) before reclassifications, net of tax	56	400	1,394	2,129
Net unrealized losses on securities transferred from available for sale to held to maturity, net of tax
Amounts reclassified from accumulated other comprehensive income (loss), net of tax	53	41	53	76
Other comprehensive income (loss)	109	441	1,447	2,205
Balance	(2,466)	402	(2,466)	402
Unrealized Gains and Losses On Held To Maturity Securities [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance	(1,526)	(1,340)	(1,678)	(1,477)
Net unrealized losses on securities transferred from available for sale to held to maturity, net of tax
Amounts reclassified from accumulated other comprehensive income (loss), net of tax	74	64	226	201
Other comprehensive income (loss)	74	64	226	201
Balance	(1,452)	(1,276)	(1,452)	(1,276)
Unrealized Gains And Losses On Cash Flow Hedges [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance	(1,011)	(2,458)	(1,135)	(1,525)
Other comprehensive income (loss) before reclassifications, net of tax	20	235	(116)	(963)
Net unrealized losses on securities transferred from available for sale to held to maturity, net of tax
Amounts reclassified from accumulated other comprehensive income (loss), net of tax	118	161	378	426
Other comprehensive income (loss)	138	396	262	(537)
Balance	(873)	(2,062)	(873)	(2,062)
AOCI Including Portion Attributable to Noncontrolling Interest [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance	(5,112)	(3,837)	(6,726)	(4,805)
Other comprehensive income (loss) before reclassifications, net of tax	76	635	1,278	1,166
Net unrealized losses on securities transferred from available for sale to held to maturity, net of tax
Amounts reclassified from accumulated other comprehensive income (loss), net of tax	245	266	657	703
Other comprehensive income (loss)	321	901	1,935	1,869
Balance	$ (4,791)	$ (2,936)	$ (4,791)	$ (2,936)

Accumulated Other Comprehensi69

Accumulated Other Comprehensive Income (Schedule Of Amounts Reclassified Out Of AOCI) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
(Gain) loss on sale of securities	$ 86	$ 66	$ 86	$ 122
Interest income	34,688	25,342	98,962	69,053
Interest expense	3,354	2,592	9,957	6,487
Income tax effect	5,106	3,039	14,313	8,682
Net income	10,054	5,765	30,019	17,306
Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net income	245	266	657	703
Unrealized Gains and Losses On Available For Sale Securities [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
(Gain) loss on sale of securities	86	66	86	122
Income tax effect	(33)	(25)	(33)	(46)
Net income	53	41	53	76
Unrealized Gains and Losses On Held To Maturity Securities [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Interest income	120	105	365	326
Income tax effect	(46)	(41)	(139)	(125)
Net income	74	64	226	201
Unrealized Gains And Losses On Cash Flow Hedges [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Interest expense	190	259	609	687
Income tax effect	(72)	(98)	(231)	(261)
Net income	$ 118	$ 161	$ 378	$ 426

Stock-Based Compensation (Narra

Stock-Based Compensation (Narrative) (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Outstanding awards, unvested stock	476,549	564,376	476,549	564,376	513,187
Shares expected to vest	461,000		461,000
Number of performance condition restricted shares expected to vest	282,000		282,000
Recognized stock-based compensation expense			$ 2,272,000	$ 2,304,000
Total income tax effect recognized for share-based compensation arrangements	$ 293,000	$ 281,000	864,000	876,000
Excess tax benefit	22,000	$ 5,000	582,000	325,000
Fair value of awards granted			2,845,000	2,963,000
Fair value of awards that vested			3,567,000	$ 3,053,000
Unrecognized expense on nonvested awards not yet recognized	$ 4,185,000		$ 4,185,000
Weighted-average period of nonvested awards expected to be recognized over			1 year 3 months 18 days
Restricted Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares outstanding	290,368		290,368
2005 Stock Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Approved Stock Awards	1,700,000		1,700,000
Awards outstanding	223,369		223,369
2015 Stock Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Approved Stock Awards	935,000		935,000
Awards outstanding	253,180		253,180
Shares available for grant under Incentive Plan	618,765		618,765

Stock-Based Compensation (Stock

Stock-Based Compensation (Stock-Based Compensation Change During The Period) (Details)	9 Months Ended
	Sep. 30, 2017$ / sharesshares
Stock-Based Compensation [Abstract]
Beginning Balance, Unearned, Shares | shares	513,187
Awarded, Shares | shares	114,302
Forfeited, Shares | shares	(6,291)
Vested, Shares | shares	(144,649)
Ending Balance, Unearned, Shares | shares	476,549
Beginning Balance, Unearned, Weighted Average Fair Value on Award Date | $ / shares	$ 14.39
Awarded, Weighted Average Fair Value on Award Date | $ / shares	24.89
Forfeited, Weighted Average Fair Value on Award Date | $ / shares	18.66
Vested, Weighted Average Fair Value on Award Date | $ / shares	14.07
Ending Balance, Unearned, Weighted Average Fair Value on Award Date | $ / shares	$ 16.95

Capital Ratios (Details)

Capital Ratios (Details)	Sep. 30, 2017	Dec. 31, 2016
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Common Equity Tier 1 Risk-Based Capital Ratio	10.56%	10.46%
Common Equity Tier 1 Risk-Based Capital Ratio, Minimum Requirement for “Adequately Capitalized” Institution plus fully phased in Capital Conservation Buffer	7.00%
Tier 1 Risk-Based Capital Ratio	11.40%	11.34%
Tier 1 Risk-Based Capital Ratio, Minimum Requirement for “Adequately Capitalized” Institution plus fully phased in Capital Conservation Buffer	8.50%
Total Risk-Based Capital Ratio	13.50%	13.58%
Total Risk-Based Capital Ratio, Minimum Requirement for “Adequately Capitalized” Institution plus fully phased in Capital Conservation Buffer	10.50%
Leverage Ratio	10.15%	9.81%
Leverage Ratio, Minimum Requirement for “Adequately Capitalized” Institution plus fully phased in Capital Conservation Buffer	4.00%
Guaranty Bank And Trust Company [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Common Equity Tier 1 Risk-Based Capital Ratio	12.23%	12.43%
Common Equity Tier 1 Risk-Based Capital Ratio, Minimum Requirement for “Adequately Capitalized” Institution plus fully phased in Capital Conservation Buffer	7.00%
Common Equity Tier 1 Risk-Based Capital Ratio, Minimum Requirement for "Well Capitalized" Institution	6.50%
Tier 1 Risk-Based Capital Ratio	12.23%	12.43%
Tier 1 Risk-Based Capital Ratio, Minimum Requirement for “Adequately Capitalized” Institution plus fully phased in Capital Conservation Buffer	8.50%
Tier 1 Risk-Based Capital Ratio, Minimum Requirement for "Well Capitalized" Institution	8.00%
Total Risk-Based Capital Ratio	13.00%	13.26%
Total Risk-Based Capital Ratio, Minimum Requirement for “Adequately Capitalized” Institution plus fully phased in Capital Conservation Buffer	10.50%
Total Risk-Based Capital Ratio, Minimum Requirement for "Well Capitalized" Institution	10.00%
Leverage Ratio	10.89%	10.76%
Leverage Ratio, Minimum Requirement for “Adequately Capitalized” Institution plus fully phased in Capital Conservation Buffer	4.00%
Leverage Ratio, Minimum Requirement for "Well Capitalized" Institution	5.00%

Legal Contingencies (Narrative)

Legal Contingencies (Narrative) (Details) $ in Thousands	3 Months Ended
	Sep. 30, 2017USD ($)
Legal Contingencies [Abstract]
Charge for litigation settlement	$ 1,600

Subsequent Events (Narrative) (

Subsequent Events (Narrative) (Details) - USD ($) $ / shares in Units, $ in Thousands	Oct. 27, 2017	Sep. 30, 2017	Dec. 31, 2016
Subsequent Event [Line Items]
Assets		$ 3,510,046	$ 3,366,427
Deposits		2,898,060	$ 2,699,084
Pro forma assets		3,700,000
Pro forma deposits		3,000,000
Castle Rock Bank [Member]
Subsequent Event [Line Items]
Assets		145,000
Deposits		$ 127,600
Subsequent Event [Member] | Castle Rock Bank [Member]
Subsequent Event [Line Items]
Acquisition date	Oct. 27, 2017
Acquisition price	$ 24,421
Cash paid, per share acquired	$ 29.05
Shares issued in acquisition	840,639
Percent of acquisition	100.00%
Merger expenses	$ 268