National Bank (NBHC) 10-Q 9 May 14 2014 Q1 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information	3 Months Ended
	Mar. 31, 2014	6-May-14	6-May-14
		Common Class A [Member]	Common Class B [Member]
Entity Information [Line Items]	'	'	'
Document Type	'10-Q	'	'
Amendment Flag	'false	'	'
Document Period End Date	31-Mar-14	'	'
Document Fiscal Year Focus	'2014	'	'
Document Fiscal Period Focus	'Q1	'	'
Trading Symbol	'NBHC	'	'
Entity Registrant Name	'National Bank Holdings Corp	'	'
Entity Central Index Key	'0001475841	'	'
Current Fiscal Year End Date	'--12-31	'	'
Entity Filer Category	'Large Accelerated Filer	'	'
Entity Common Stock, Shares Outstanding	'	41,017,351	3,027,774

Consolidated_Statements_of_Fin

Consolidated Statements of Financial Condition (Unaudited) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
ASSETS	'	'
Cash and due from banks	$65,785	$67,420
Due from Federal Reserve Bank of Kansas City	117,871	107,894
Interest bearing bank deposits	14,159	14,146
Cash and cash equivalents	197,815	189,460
Investment securities available-for-sale (at fair value)	1,720,840	1,785,528
Investment securities held-to-maturity (fair value of $614,123 and $636,405 at March 31, 2014 and December 31, 2013, respectively)	616,221	641,907
Non-marketable securities	31,109	31,663
Loans (including covered loans of $287,590 and $309,397 at March 31, 2014 and December 31, 2013, respectively)	1,961,592	1,854,094
Allowance for loan losses	-13,972	-12,521
Loans, net	1,947,620	1,841,573
Loans held for sale	2,143	5,787
Federal Deposit Insurance Corporation (bFDICb) indemnification asset, net	56,677	64,447
Other real estate owned	65,983	70,125
Premises and equipment, net	112,534	115,219
Goodwill	59,630	59,630
Intangible assets, net	20,893	22,229
Other assets	82,122	86,547
Total assets	4,913,587	4,914,115
Liabilities:	'	'
Non-interest bearing demand deposits	689,248	674,989
Interest bearing demand deposits	398,429	386,762
Savings and money market	1,334,521	1,280,871
Time deposits	1,443,898	1,495,687
Total deposits	3,866,096	3,838,309
Securities sold under agreements to repurchase	91,065	99,547
Due to FDIC	33,309	41,882
Other liabilities	27,268	36,585
Total liabilities	4,017,738	4,016,323
Shareholdersb equity:	'	'
Common stock, par value $0.01 per share: 400,000,000 shares authorized; 52,268,851 and 52,289,347 shares issued; 44,486,467 and 44,918,336 shares outstanding at March 31, 2014 and December 31, 2013, respectively	512	512
Additional paid in capital	990,700	990,216
Retained earnings	39,121	39,966
Treasury stock of 6,761,257 and 6,306,551 shares at March 31, 2014 and December 31, 2013, respectively, at cost	-134,953	-126,146
Accumulated other comprehensive income (loss), net of tax	469	-6,756
Total shareholdersb equity	895,849	897,792
Total liabilities and shareholdersb equity	$4,913,587	$4,914,115

Consolidated_Statements_of_Fin1

Consolidated Statements of Financial Condition (Unaudited) (Parenthetical) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, except Share data, unless otherwise specified
Statement of Financial Position [Abstract]	'	'
Investment securities held-to-maturity, fair value	$614,123	$636,405
Loans receivable, net - covered	$287,590	$309,397
Common Stock, par value (in dollars per share)	$0.01	$0.01
Common Stock, shares authorized	400,000,000	400,000,000
Common Stock, shares issued	52,268,851	52,289,347
Common Stock, shares outstanding	44,486,467	44,918,336
Treasury stock, shares	6,761,257	6,306,551

Consolidated_Statements_of_Ope

Consolidated Statements of Operations (Unaudited) (USD $)	3 Months Ended
In Thousands, except Share data, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Interest and dividend income:	'	'
Interest and fees on loans	$33,247	$36,135
Interest and dividends on investment securities	13,168	13,248
Dividends on non-marketable securities	389	394
Interest on interest-bearing bank deposits	81	321
Total interest and dividend income	46,885	50,098
Interest expense:	'	'
Interest on deposits	3,506	4,511
Interest on borrowings	32	18
Total interest expense	3,538	4,529
Net interest income before provision for loan losses	43,347	45,569
Provision for loan losses	1,769	1,417
Net interest income after provision for loan losses	41,578	44,152
Non-interest income (expense):	'	'
FDIC indemnification asset amortization	-7,608	-4,669
FDIC loss sharing income (expense)	-957	3,276
Service charges	3,540	3,687
Bank card fees	2,374	2,469
Gain on sales of mortgages, net	208	306
Gain on previously charged-off acquired loans	296	443
Other Real Estate Owned Related Write-Ups and Other Income	968	974
Other non-interest income	825	665
Total non-interest income (expense)	-354	7,151
Non-interest expense:	'	'
Salaries and benefits	20,774	22,956
Occupancy and equipment	6,474	5,965
Telecommunications and data processing	3,148	3,469
Marketing and business development	1,023	1,379
FDIC deposit insurance	1,045	1,047
ATM/debit card expenses	751	1,005
Professional fees	638	1,396
Other non-interest expense	2,409	2,908
Gain from the change in fair value of warrant liability	-898	-627
Intangible asset amortization	1,336	1,336
Other real estate owned expenses	1,633	4,719
Problem loan expenses	685	2,331
Total non-interest expense	39,018	47,884
Income before income taxes	2,206	3,419
Income tax expense	775	1,337
Net income	$1,431	$2,082
Income per sharebbasic (in dollars per share)	$0.03	$0.04
Income per sharebdiluted (in dollars per share)	$0.03	$0.04
Weighted average number of common shares outstanding:	'	'
Basic (Shares)	44,819,644	52,320,622
Diluted (Shares)	44,863,138	52,346,525

Consolidated_Statements_of_Com

Consolidated Statements of Comprehensive Income (Loss) (Unaudited) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Statement of Comprehensive Income [Abstract]	'	'
Net income	$1,431	$2,082
Other comprehensive income, net of tax:	'	'
Net unrealized gains (losses) arising during the period, net of tax (expense) benefit of ($4,962) and $1,872 for the three months ended March 31, 2014 and 2013, respectively	8,070	-2,501
Securities available for sale, net	8,070	-2,501
Net unrealized holding gains on securities transferred between available-for-sale to held-to-maturity:	'	'
Less: amortization of net unrealized holding gains to income, net of tax benefit of $519 and $1,218 for the three months ended March 31, 2014 and 2013, respectively	-845	-1,945
Other comprehensive income, net	-845	-1,945
Other comprehensive income (loss)	7,225	-4,446
Comprehensive income (loss)	$8,656	($2,364)

Consolidated_Statements_of_Com1

Consolidated Statements of Comprehensive Income (Loss) (Unaudited) (Parenthetical) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Statement of Comprehensive Income [Abstract]	'	'
Tax (expense) benefit on net unrealized gains (losses) arising during the period	($4,962)	$1,872
Tax benefit of amortization of net unrealized holding gains to income	$519	$1,218

Consolidated_Statements_of_Cha

Consolidated Statements of Changes in Stockholders' Equity (USD $)	Total	Common stock [Member]	Additional paid-in capital [Member]	Retained earnings [Member]	Treasury stock [Member]	Accumulated other comprehensive income, net [Member]
In Thousands, unless otherwise specified
Balance in the beginning at Dec. 31, 2012	$1,090,559	$523	$1,006,194	$43,273	($4)	$40,573
Increase (Decrease) in Stockholders' Equity [Roll Forward]	'	'	'	'	'	'
Net income	2,082	0	0	2,082	0	0
Stock-based compensation	1,441	0	1,441	0	0	0
Repurchase of shares	-230	'	-234	'	4	'
Dividends paid ($.05 per share)	-2,663	0	0	-2,663	0	0
Other comprehensive income	-4,446	0	0	0	0	-4,446
Balance in the ending at Mar. 31, 2013	1,086,743	523	1,007,401	42,692	0	36,127
Balance in the beginning at Dec. 31, 2013	897,792	512	990,216	39,966	-126,146	-6,756
Increase (Decrease) in Stockholders' Equity [Roll Forward]	'	'	'	'	'	'
Net income	1,431	0	0	1,431	0	0
Stock-based compensation	720	0	720	0	0	0
Issuance under equity compensation plan	-236	'	-236	'	'	'
Repurchase of shares	-8,807	0	0	0	-8,807	0
Dividends paid ($.05 per share)	-2,276	0	0	-2,276	0	0
Other comprehensive income	7,225	0	0	0	0	7,225
Balance in the ending at Mar. 31, 2014	$895,849	$512	$990,700	$39,121	($134,953)	$469

Consolidated_Statements_of_Cha1

Consolidated Statements of Changes in Stockholders' Equity (Parenthetical) (USD $)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Statement of Stockholders' Equity [Abstract]	'	'
Dividends paid per share	$0.05	$0.05
Common Stock Purchased	454,706	13,003
Treasury Stock, Shares, Retired	0	240

Consolidated_Statements_of_Cas

Consolidated Statements of Cash Flows (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Cash flows from operating activities:	'	'
Net income	$1,431	$2,082
Adjustments to reconcile net income to net cash used in operating activities:	'	'
Provision for loan losses	1,769	1,417
Depreciation and amortization	4,180	3,812
Current income tax receivable (payable)	6,017	-6,739
Deferred income tax asset	-4,584	-3,574
Discount accretion, net of premium amortization	1,320	5,466
Loan accretion	-17,733	-24,293
Net gain on sale of mortgage loans	-208	-306
Origination of loans held for sale, net of repayments	-6,506	-12,382
Proceeds from sales of loans held for sale	9,742	11,227
Amortization of indemnification asset	7,608	4,669
Gain on the sale of other real estate owned, net	-587	-1,805
Impairment on other real estate owned	822	4,526
Stock-based compensation	720	1,441
Decrease in due to FDIC, net	-8,573	-260
(Increase) decrease in other assets	-1,451	409
Decrease in other liabilities	-9,355	-3,443
Net cash provided by (used in) operating activities	-15,388	-17,753
Cash flows from investing activities:	'	'
Sale of FHLB stock	554	49
Maturities of investment securities held-to-maturity	24,190	57,599
Maturities of investment securities available-for-sale	76,532	158,532
Purchase of investment securities available-for-sale	0	-554,355
Net (increase) decrease in loans	-90,125	50,634
Purchase of premises and equipment	-159	-2,122
Proceeds from Sale of Notes Receivable	422	19,755
Proceeds from sales of other real estate owned	4,143	25,726
Decrease in FDIC indemnification asset	162	55,287
Net cash used in investing activities	15,719	-188,895
Cash flows from financing activities:	'	'
Net increase (decrease) in deposits	27,787	-139,918
Decrease in repurchase agreements	-8,482	-575
Issuance under equity compensation plan	-236	0
Payment of dividends	-2,238	-2,616
Repurchase of shares	-8,807	-230
Net cash provided by (used in) financing activities	8,024	-143,339
Increase (decrease) in cash and cash equivalents	8,355	-349,987
Cash and cash equivalents at beginning of the year	189,460	769,180
Cash and cash equivalents at end of period	197,815	419,193
Supplemental disclosure of cash flow information:	'	'
Cash paid during the period for interest	3,484	4,906
Cash (received) paid during the period for taxes	-638	8,580
Supplemental schedule of non-cash investing activities:	'	'
Loans transferred to other real estate owned at fair value	236	17,043
FDIC indemnification asset claims transferred to other assets	$29	$9,132

Basis_of_Presentation

Basis of Presentation	3 Months Ended
	Mar. 31, 2014
Accounting Policies [Abstract]	'
Basis of Presentation	'
	Basis of Presentation
	National Bank Holdings Corporation ("NBHC" or the "Company") is a bank holding company that was incorporated in the State of Delaware in June 2009 with the intent to acquire and operate financial services franchises and other complementary businesses in targeted markets. The Company is headquartered immediately south of Denver, in Greenwood Village, Colorado, and its primary operations are conducted through its wholly owned subsidiary, NBH Bank, N.A. The Company provides a variety of banking products to both commercial and consumer clients through a network of 97 banking centers located in Colorado, the greater Kansas City area and Texas, and through on-line and mobile banking products.
	These interim consolidated financial statements serve to update the National Bank Holdings Corporation Annual Report on Form 10-K for the year ended December 31, 2013. The accompanying consolidated financial statements include the accounts of the Company and its wholly owned subsidiary, NBH Bank, N.A. The accompanying consolidated financial statements have been prepared in accordance with U.S. generally accepted accounting principles (“GAAP”) and where applicable, with general practices in the banking industry or guidelines prescribed by bank regulatory agencies. However, they may not include all information and notes necessary to constitute a complete set of financial statements under GAAP applicable to annual periods and accordingly should be read in conjunction with the financial information contained in the Form 10-K. The consolidated financial statements reflect all adjustments which are, in the opinion of management, necessary for a fair statement of the results presented. All such adjustments are of a normal recurring nature. All significant intercompany balances and transactions have been eliminated in consolidation. Certain reclassifications of prior years' amounts are made whenever necessary to conform to current period presentation. The results of operations for the interim period is not necessarily indicative of the results that may be expected for the full year or any other interim period.
	The Company's significant accounting policies followed in the preparation of the consolidated financial statements are disclosed in note 2 of the audited financial statements and notes for the year ended December 31, 2013 and are contained in the Company's Annual Report on Form 10-K. There have not been any significant changes to the application of significant accounting policies since December 31, 2013. GAAP requires management to make estimates that affect the reported amounts of assets, liabilities, revenues and expenses, and disclosures of contingent assets and liabilities. By their nature, estimates are based on judgment and available information. Management has made significant estimates in certain areas, such as the amount and timing of expected cash flows from assets, the valuation of the FDIC indemnification asset and clawback liability, the valuation of other real estate owned (“OREO”), the fair value adjustments on assets acquired and liabilities assumed, the valuation of core deposit intangible assets, the evaluation of investment securities for other-than-temporary impairment (“OTTI”), the valuation of stock-based compensation, the fair values of financial instruments, the allowance for loan losses (“ALL”), and contingent liabilities. Because of the inherent uncertainties associated with any estimation process and future changes in market and economic conditions, it is possible that actual results could differ significantly from those estimates.

Recent_Accounting_Pronouncemen

Recent Accounting Pronouncements	3 Months Ended
	Mar. 31, 2014
Text Block [Abstract]	'
Recent Accounting Pronouncements	'
	Recent Accounting Pronouncements
	Reclassification of Residential Real Estate Collateralized Consumer Mortgage Loans upon Foreclosure - In January 2014, the FASB issued ASU 2014-04, “Reclassification of Residential Real Estate Collateralized Consumer Mortgage Loans upon Foreclosure.” This update amends ASC Topic 310-40 and clarifies that an “in substance repossession or foreclosure” has occurred upon the creditor obtaining either legal title to the property upon completion of foreclosure, or the borrower conveying all interest in the property through completion of a deed in lieu of foreclosure. Upon occurrence, the creditor derecognizes the loan receivable and recognizes the collateralized real estate property. The amendments in the ASU will be effective for the Company for interim and annual periods beginning after December 15, 2014. Early adoption is permitted. Adoption of this amendment can be made using either a modified retrospective transition method or a prospective transition method. The adoption of this standard is not expected to have a material impact on the Company’s consolidated financial statements, results of operations or liquidity.

Investment_Securities

Investment Securities	3 Months Ended
	Mar. 31, 2014
Investments, Debt and Equity Securities [Abstract]	'
Investment Securities	'
	Investment Securities
	The Company’s investment securities portfolio is comprised of available-for-sale and held-to-maturity investment securities. These investment securities totaled $2.3 billion at March 31, 2014 and $2.4 billion at December 31, 2013. Included in the aforementioned $2.3 billion was $1.7 billion of available-for-sale securities and $0.6 billion of held-to-maturity securities.
	Available-for-sale
	Available-for-sale investment securities are summarized as follows as of the dates indicated (in thousands):
		March 31, 2014
		Amortized		Gross			Gross			Fair value
		cost		unrealized			unrealized
				gains			losses
	Asset backed securities	$	2,066	$	2		$	—		$	2,068
	Mortgage-backed securities (“MBS”):
	Residential mortgage pass-through securities issued or guaranteed by U.S. Government agencies or sponsored enterprises	465,901		8,422			(1,367		)	472,956
	Other residential MBS issued or guaranteed by U.S. Government agencies or sponsored enterprises	1,270,165		11,020			(35,788		)	1,245,397
	Other securities	419		—			—			419
	Total	$	1,738,551	$	19,444		$	(37,155	)	$	1,720,840
		December 31, 2013
		Amortized		Gross			Gross			Fair value
		cost		unrealized			unrealized
				gains			losses
	Asset backed securities	4,534		3			—			4,537
	Mortgage-backed securities (“MBS”):
	Residential mortgage pass-through securities issued or guaranteed by U.S. Government agencies or sponsored enterprises	490,321		7,670			(3,001		)	494,990
	Other residential MBS issued or guaranteed by U.S. Government agencies or sponsored enterprises	1,320,998		10,764			(46,180		)	1,285,582
	Other securities	419		—			—			419
	Total	$	1,816,272	$	18,437		$	(49,181	)	$	1,785,528
	At March 31, 2014 and December 31, 2013, mortgage-backed securities represented 99.9% and 99.7%, respectively, of the Company’s available-for-sale investment portfolio and all mortgage-backed securities were backed by government sponsored enterprises (“GSE”) collateral such as Federal Home Loan Mortgage Corporation (“FHLMC”) and Federal National Mortgage Association (“FNMA”), and the government sponsored agency Government National Mortgage Association (“GNMA”).
	The table below summarizes the unrealized losses as of the dates shown, along with the length of the impairment period (in thousands):
		March 31, 2014
		Less than 12 months					12 months or more						Total
		Fair		Unrealized			Fair			Unrealized			Fair		Unrealized
		value		losses			value			losses			value		losses
	Mortgage-backed securities (“MBS”):
	Residential mortgage pass-through securities issued or guaranteed by U.S. Government agencies or sponsored enterprises	$	252,142	$	(1,366	)	$	11		$	(1	)	$	252,153	$	(1,367	)
	Other residential MBS issued or guaranteed by U.S. Government agencies or sponsored enterprises	601,345		(21,735		)	286,886			(14,053		)	888,231		(35,788		)
	Total	$	853,487	$	(23,101	)	$	286,897		$	(14,054	)	$	1,140,384	$	(37,155	)
		December 31, 2013
		Less than 12 months					12 months or more						Total
		Fair		Unrealized			Fair			Unrealized			Fair		Unrealized
		value		losses			value			losses			value		losses
	Mortgage-backed securities (“MBS”):
	Residential mortgage pass-through securities issued or guaranteed by U.S. Government agencies or sponsored enterprises	$	283,177	$	(3,000	)	$	13		$	(1	)	$	283,190	$	(3,001	)
	Other residential MBS issued or guaranteed by U.S. Government agencies or sponsored enterprises	876,225		(44,101		)	40,740			(2,079		)	916,965		(46,180		)
	Total	$	1,159,402	$	(47,101	)	$	40,753		$	(2,080	)	$	1,200,155	$	(49,181	)
	Management evaluated all of the securities in an unrealized loss position and concluded that no other-than-temporary-impairment existed at March 31, 2014 or December 31, 2013. The unrealized losses in the Company's investments issued or guaranteed by U.S. government agencies or sponsored enterprises at March 31, 2014 were caused by changes in interest rates. The Company had no intention to sell these securities before recovery of their amortized cost and believes it will not be required to sell the securities before the recovery of their amortized cost.
	The Company pledges certain securities as collateral for public deposits, securities sold under agreements to repurchase and to secure borrowing capacity at the Federal Reserve Bank, if needed. The fair value of available-for-sale investment securities pledged as collateral totaled $191.9 million at March 31, 2014 and $177.6 million December 31, 2013. The increase in pledged available-for-sale investment securities was primarily attributable to an increase in deposit account balances during the three months ended March 31, 2014. Certain investment securities may also be pledged as collateral should the Company utilize its line of credit at the FHLB of Des Moines; however, no investment securities were pledged for this purpose at March 31, 2014 or December 31, 2013.
	The table below summarizes the contractual maturities, as of the last scheduled repayment date, of the available-for-sale investment portfolio as of March 31, 2014 (in thousands):
		Amortized cost		Fair value
	Due in one year or less	$	—	$	—
	Due after one year through five years	2,074		2,076
	Due after five years through ten years	185,658		185,373
	Due after ten years	1,550,400		1,532,972
	Other securities	419		419
	Total investment securities available-for-sale	$	1,738,551	$	1,720,840
	Actual maturities of mortgage-backed securities may differ from contractual maturities depending on the repayment characteristics and experience of the underlying financial instruments. The estimated weighted average life of the available-for-sale mortgage-backed securities portfolio was 3.8 years as of March 31, 2014 and 3.9 years as of December 31, 2013. This estimate is based on assumptions and actual results may differ. Other securities of $0.4 million have no stated contractual maturity date as of March 31, 2014.
	Held-to-maturity
	At March 31, 2014 and December 31, 2013 the Company held $616.2 million and $641.9 million of held-to-maturity investment securities, respectively. Held-to-maturity investment securities are summarized as follows as of the dates indicated (in thousands):
		March 31, 2014
		Amortized		Gross			Gross			Fair value
		cost		unrealized			unrealized
				gains			losses
	Mortgage-backed securities (“MBS”):
	Residential mortgage pass-through securities issued or guaranteed by U.S. Government agencies or sponsored enterprises	$	492,294	$	1,537		$	(862	)	$	492,969
	Other residential MBS issued or guaranteed by U.S. Government agencies or sponsored enterprises	123,927		320			(3,093		)	121,154
	Total investment securities held-to-maturity	$	616,221	$	1,857		$	(3,955	)	$	614,123
	December 31, 2013
	Amortized		Gross			Gross			Fair value
	cost		unrealized			unrealized
			gains			losses
Mortgage-backed securities (“MBS”):
Residential mortgage pass-through securities issued or guaranteed by U.S. Government agencies or sponsored enterprises	$	513,090	$	175		$	(1,776	)	$	511,489
Other residential MBS issued or guaranteed by U.S. Government agencies or sponsored enterprises	128,817		104			-4,005			124,916
Total investment securities held-to-maturity	$	641,907	$	279		$	(5,781	)	$	636,405
The table below summarizes the contractual maturities, as of the last scheduled repayment date, of the held-to-maturity investment portfolio at March 31, 2014 (in thousands):
	Amortized cost		Fair value
Due in one year or less	$	—	$	—
Due after one year through five years	—		—
Due after five years through ten years	17,597		17,760
Due after ten years	598,624		596,363
Total investment securities held-to-maturity	$	616,221	$	614,123
The carrying value of held-to-maturity investment securities pledged as collateral totaled $58.9 million and $68.5 million at March 31, 2014 and December 31, 2013, respectively. All of the held-to-maturity investment securities in unrealized loss positions at March 31, 2014 and December 31, 2013 had been in continuous unrealized loss positions for less than 12 months at the respective reporting dates. Actual maturities of mortgage-backed securities may differ from scheduled maturities depending on the repayment characteristics and experience of the underlying financial instruments. The estimated weighted average expected life of the held-to-maturity mortgage-backed securities portfolio as of March 31, 2014 and December 31, 2013 was 3.8 years. This estimate is based on assumptions and actual results may differ.

Loans

Loans	3 Months Ended
	Mar. 31, 2014
Receivables [Abstract]	'
Loans	'
	Loans
	The loan portfolio is comprised of loans originated by the Company and loans that were acquired in connection with the Company’s acquisitions of Bank of Choice and Community Banks of Colorado in 2011, and Hillcrest Bank and Bank Midwest in 2010. The majority of the loans acquired in the Hillcrest Bank and Community Banks of Colorado transactions are covered by loss sharing agreements with the FDIC, and covered loans are presented separately from non-covered loans due to the FDIC loss-sharing agreements associated with these loans. Covered loans comprised 14.7% of the total loan portfolio at March 31, 2014, compared to 16.7% of the total loan portfolio at December 31, 2013.
	The table below shows the loan portfolio composition including carrying value by segment of loans accounted for under ASC Topic 310-30 Receivables—Loans and Debt Securities Acquired with Deteriorated Credit Quality and loans not accounted for under this guidance, which includes our originated loans. The table also shows the amounts covered by the FDIC loss-sharing agreements as of March 31, 2014 and December 31, 2013. The carrying value of loans are net of discounts on loans excluded from Accounting Standards Codification (“ASC”) Topic 310-30, and fees and costs of $12.9 million and $13.3 million as of March 31, 2014 and December 31, 2013, respectively (in thousands):
		March 31, 2014
		ASC 310-30			Non 310-30			Total loans		% of
		loans			loans					total
	Commercial	$	52,107		$	530,462		$	582,569	29.7	%
	Commercial real estate	263,608			317,137			580,745		29.6	%
	Agriculture	23,545			131,586			155,131		7.9	%
	Residential real estate	60,467			548,758			609,225		31.1	%
	Consumer	6,819			27,103			33,922		1.7	%
	Total	$	406,546		$	1,555,046		$	1,961,592	100	%
	Covered	$	244,322		$	43,268		$	287,590	14.7	%
	Non-covered	162,224			1,511,778			1,674,002		85.3	%
	Total	$	406,546		$	1,555,046		$	1,961,592	100	%
		December 31, 2013
		ASC 310-30			Non 310-30			Total loans		% of
		loans			loans					total
	Commercial	$	61,511		$	421,984		$	483,495	26.1	%
	Commercial real estate	291,198			283,022			574,220		31	%
	Agriculture	27,000			132,952			159,952		8.6	%
	Residential real estate	63,011			536,913			599,924		32.3	%
	Consumer	8,160			28,343			36,503		2	%
	Total	$	450,880		$	1,403,214		$	1,854,094	100	%
	Covered	$	259,364		$	50,033		$	309,397	16.7	%
	Non-covered	191,516			1,353,181			1,544,697		83.3	%
	Total	$	450,880		$	1,403,214		$	1,854,094	100	%
	Loans are considered past due or delinquent when the contractual principal or interest due in accordance with the terms of the loan agreement remains unpaid after the due date of the scheduled payment. During 2013, the Company determined that the cash flows of one covered commercial and industrial loan pool were no longer reasonably estimable, and in accordance with the guidance in ASC 310-30, this pool was put on non-accrual status. During the three months ended March 31, 2014, this loan pool was returned to accrual status due to improved performance and predictability of cash flows within that pool. At March 31, 2014, this loan pool had a carrying value of $14.7 million. Interest income was recognized on all accruing loans accounted for under ASC 310-30 through accretion of the difference between the carrying value of the loans and the expected cash flows.
	Pooled loans accounted for under ASC 310-30 that are 90 days or more past due and still accreting are generally considered to be performing and are included in loans 90 days or more past due and still accruing. At March 31, 2014 and December 31, 2013, $9.7 million and $9.5 million, respectively, of loans excluded from the scope of ASC 310-30 were on non-accrual and $14.8 million of loans accounted for under ASC 310-30 were on non-accrual status at December 31, 2013. Loan delinquency for all loans is shown in the following tables at March 31, 2014 and December 31, 2013, respectively (in thousands):
		Total Loans March 31, 2014
		30-59			60-89			Greater		Total  past		Current		Total		Loans > 90		Non-
		days  past			days			than 90		due				loans		days past		accrual
		due			past			days past								due and
					due			due								still
																accruing
	Loans excluded from ASC 310-30
	Commercial	$	1,210		$	1,020		$	282	$	2,512	$	527,950	$	530,462	$	25	$	992
	Commercial real estate
	Construction	—			—			—		—		4,957		4,957		—		—
	Acquisition/development	44			—			—		44		8,225		8,269		—		—
	Multifamily	99			—			—		99		10,294		10,393		—		1,059
	Owner-occupied	255			387			52		694		109,089		109,783		—		956
	Non owner-occupied	113			38			203		354		183,381		183,735		—		203
	Total commercial real estate	511			425			255		1,191		315,946		317,137		—		2,218
	Agriculture	80			—			365		445		131,141		131,586		—		539
	Residential real estate
	Senior lien	1,401			533			750		2,684		494,576		497,260		—		5,283
	Junior lien	65			17			46		128		51,370		51,498		—		482
	Total residential real estate	1,466			550			796		2,812		545,946		548,758		—		5,765
	Consumer	764			11			29		804		26,299		27,103		28		224
	Total loans excluded from ASC 310-30	$	4,031		$	2,006		$	1,727	$	7,764	$	1,547,282	$	1,555,046	$	53	$	9,738
	Covered loans excluded from ASC 310-30	$	174		$	52		$	351	$	577	$	42,691	$	43,268	$	—	$	2,175
	Non-covered loans excluded from ASC 310-30	3,857			1,954			1,376		7,187		1,504,591		1,511,778		53		7,563
	Total loans excluded from ASC 310-30	$	4,031		$	2,006		$	1,727	$	7,764	$	1,547,282	$	1,555,046	$	53	$	9,738
	Loans accounted for under ASC 310-30
	Commercial	$	15,819		$	538		$	4,372	$	20,729	$	31,378	$	52,107	$	4,372	$	—
	Commercial real estate	4,425			2,636			41,218		48,279		215,329		263,608		41,219		—
	Agriculture	43			—			51		94		23,451		23,545		51		—
	Residential real estate	1,997			242			1,968		4,207		56,260		60,467		1,968		—
	Consumer	166			7			179		352		6,467		6,819		179		—
	Total loans accounted for under ASC 310-30	$	22,450		$	3,423		$	47,788	$	73,661	$	332,885	$	406,546	$	47,789	—
	Covered loans accounted for under ASC 310-30	$	18,589		$	2,501		$	37,198	$	58,288	$	186,034	$	244,322	$	37,199	$	—
	Non-covered loans accounted for under ASC 310-30	3,861			922			10,590		15,373		146,851		162,224		10,590		—
Total loans accounted for under ASC 310-30	$	22,450		$	3,423		$	47,788	$	73,661	$	332,885	$	406,546	$	47,789	$	—
Total loans	$	26,481		$	5,429		$	49,515	$	81,425	$	1,880,167	$	1,961,592	$	47,842	$	9,738
Covered loans	$	18,763		$	2,553		$	37,549	$	58,865	$	228,725	$	287,590	$	37,199	$	2,175
Non-covered loans	7,718			2,876			11,966		22,560		1,651,442		1,674,002		10,643		7,563
Total loans	$	26,481		$	5,429		$	49,515	$	81,425	$	1,880,167	$	1,961,592	$	47,842	$	9,738
	Total Loans December 31, 2013
	30-59			60-89			Greater		Total  past		Current		Total		Loans > 90		Non-
	days  past			days			than 90		due				loans		days past		accrual
	due			past			days past								due and
				due			due								still
															accruing
Loans excluded from ASC 310-30
Commercial	$	897		$	156		$	555	$	1,608	$	420,376	$	421,984	$	115	$	1,280
Commercial real estate
Construction	316			—			—		316		5,023		5,339		—		—
Acquisition/development	45			—			—		45		7,975		8,020		—		1
Multifamily	1,003			—			—		1,003		9,681		10,684		—		1,096
Owner-occupied	52			7			21		80		93,367		93,447		—		692
Non owner-occupied	329			—			203		532		165,000		165,532		—		203
Total commercial real estate	1,745			7			224		1,976		281,046		283,022		—		1,992
Agriculture	188			7			—		195		132,757		132,952		—		153
Residential real estate
Senior lien	733			415			1,062		2,210		482,381		484,591		—		5,326
Junior lien	204			—			80		284		52,038		52,322		—		519
Total residential real estate	937			415			1,142		2,494		534,419		536,913		—		5,845
Consumer	191			21			23		235		28,108		28,343		14		247
Total loans excluded from ASC 310-30	$	3,958		$	606		$	1,944	$	6,508	$	1,396,706	$	1,403,214	$	129	$	9,517
Covered loans excluded from ASC 310-30	194			60			155		409		49,624		50,033		115		1,944
Non-covered loans excluded from ASC 310-30	3,764			546			1,789		6,099		1,347,082		1,353,181		14		7,573
Total loans excluded from ASC 310-30	$	3,958		$	606		$	1,944	$	6,508	$	1,396,706	$	1,403,214	$	129	$	9,517
Loans accounted for under ASC 310-30
Commercial	$	582		$	322		$	4,505	$	5,409	$	56,102	$	61,511	$	4,505	$	14,827
Commercial real estate	1,902			5,179			49,228		56,309		234,889		291,198		49,227		—
Agriculture	714			—			296		1,010		25,990		27,000		296		—
Residential real estate	977			977			1,817		3,771		59,240		63,011		1,817		—
Consumer	327			265			19		611		7,549		8,160		19		—
Total loans accounted for under ASC 310-30	$	4,502		$	6,743		$	55,865	$	67,110	$	383,770	$	450,880	$	55,864	$	14,827
Covered loans accounted for under ASC 310-30	$	1,471		$	4,949		$	42,356	$	48,776	$	210,588	$	259,364	$	42,355	$	14,827
Non-covered loans accounted for under ASC 310-30	3,031			1,794			13,509		18,334		173,182		191,516		13,509		—
Total loans accounted for under ASC 310-30	$	4,502		$	6,743		$	55,865	$	67,110	$	383,770	$	450,880	$	55,864	$	14,827
Total loans	$	8,460		$	7,349		$	57,809	$	73,618	$	1,780,476	$	1,854,094	$	55,993	$	24,344
Covered loans	$	1,665		$	5,009		$	42,511	$	49,185	$	260,212	$	309,397	$	42,470	$	16,771
Non-covered loans	6,795			2,340			15,298		24,433		1,520,264		1,544,697		13,523		7,573
Total loans	$	8,460		$	7,349		$	57,809	$	73,618	$	1,780,476	$	1,854,094	$	55,993	$	24,344
Credit exposure for all loans as determined by the Company’s internal risk rating system was as follows as of March 31, 2014 and December 31, 2013, respectively (in thousands):
	Total Loans March 31, 2014
	Pass			Special			Substandard		Doubtful		Total
				mention
Loans excluded from ASC 310-30
Commercial	$	489,203		$	5,394		$	35,681	$	184	$	530,462
Commercial real estate
Construction	4,957			—			—		—		4,957
Acquisition/development	1,558			2,248			4,463		—		8,269
Multifamily	9,334			—			1,034		25		10,393
Owner-occupied	104,127			166			5,490		—		109,783
Non owner-occupied	161,381			18,140			4,214		—		183,735
Total commercial real estate	281,357			20,554			15,201		25		317,137
Agriculture	121,436			331			9,819		—		131,586
Residential real estate
Senior lien	488,132			1,223			7,497		408		497,260
Junior lien	49,119			197			2,182		—		51,498
Total residential real estate	537,251			1,420			9,679		408		548,758
Consumer	26,876			—			227		—		27,103
Total loans excluded from ASC 310-30	$	1,456,123		$	27,699		$	70,607	$	617	$	1,555,046
Covered loans excluded from ASC 310-30	$	16,698		$	2,920		$	23,177	$	473	$	43,268
Non-covered loans excluded from ASC 310-30	1,439,425			24,779			47,430		144		1,511,778
Total loans excluded from ASC 310-30	$	1,456,123		$	27,699		$	70,607	$	617	$	1,555,046
Loans accounted for under ASC 310-30
Commercial	$	14,576		$	3,732		$	33,101	$	698	$	52,107
Commercial real estate	109,069			6,712			142,766		5,061		263,608
Agriculture	20,297			661			2,587		—		23,545
Residential real estate	42,810			916			16,741		—		60,467
Consumer	5,818			216			785		—		6,819
Total loans accounted for under ASC 310-30	$	192,570		$	12,237		$	195,980	$	5,759	$	406,546
Covered loans accounted for under ASC 310-30	$	89,706		$	6,072		$	142,785	$	5,759	$	244,322
Non-covered loans accounted for under ASC 310-30	102,864			6,165			53,195		—		162,224
Total loans accounted for under ASC 310-30	$	192,570		$	12,237		$	195,980	$	5,759	$	406,546
Total loans	$	1,648,693		$	39,936		$	266,587	$	6,376	$	1,961,592
Total covered	$	106,404		$	8,992		$	165,962	$	6,232	$	287,590
Total non-covered	1,542,289			30,944			100,625		144		1,674,002
Total loans	$	1,648,693		$	39,936		$	266,587	$	6,376	$	1,961,592
	Total Loans December 31, 2013
	Pass			Special			Substandard		Doubtful		Total
				mention
Loans excluded from ASC 310-30
Commercial	$	374,281		$	9,882		$	37,414	$	407	$	421,984
Commercial real estate
Construction	5,339			—			—		—		5,339
Acquisition/development	1,366			2,247			4,407		—		8,020
Multifamily	9,588			—			1,068		28		10,684
Owner-occupied	87,984			169			5,294		—		93,447
Non owner-occupied	142,159			18,536			4,837		—		165,532
Total commercial real estate	246,436			20,952			15,606		28		283,022
Agriculture	123,216			9,049			687		—		132,952
Residential real estate
Senior lien	475,041			1,495			7,620		435		484,591
Junior lien	49,874			200			2,248		—		52,322
Total residential real estate	524,915			1,695			9,868		435		536,913
Consumer	28,092			—			251		—		28,343
Total loans excluded from ASC 310-30	$	1,296,940		$	41,578		$	63,826	$	870	$	1,403,214
Covered loans excluded from ASC 310-30	$	22,175		$	3,439		$	24,005	$	414	$	50,033
Non-covered loans excluded from ASC 310-30	1,274,765			38,139			39,821		456		1,353,181
Total loans excluded from ASC 310-30	$	1,296,940		$	41,578		$	63,826	$	870	$	1,403,214
Loans accounted for under ASC 310-30
Commercial	$	23,129		$	3,221		$	34,440	$	721	$	61,511
Commercial real estate	115,903			12,493			157,748		5,054		291,198
Agriculture	21,900			1,117			3,983		—		27,000
Residential real estate	43,904			1,098			18,009		—		63,011
Consumer	6,921			244			995		—		8,160
Total loans accounted for under ASC 310-30	$	211,757		$	18,173		$	215,175	$	5,775	$	450,880
Covered loans accounted for under ASC 310-30	$	100,050		$	8,498		$	145,041	$	5,775	$	259,364
Non-covered loans accounted for under ASC 310-30	111,707			9,675			70,134		—		191,516
Total loans accounted for under ASC 310-30	$	211,757		$	18,173		$	215,175	$	5,775	$	450,880
Total loans	$	1,508,697		$	59,751		$	279,001	$	6,645	$	1,854,094
Total covered	$	122,225		$	11,937		$	169,046	$	6,189	$	309,397
Total non-covered	1,386,472			47,814			109,955		456		1,544,697
Total loans	$	1,508,697		$	59,751		$	279,001	$	6,645	$	1,854,094
Impaired Loans
Loans are considered to be impaired when it is probable that the Company will not be able to collect all amounts due in accordance with the contractual terms of the loan agreement. Impaired loans are comprised of loans excluded from ASC 310-30 on non-accrual status and troubled debt restructurings (“TDRs”) described below. If a specific allowance is warranted based on the borrower’s overall financial condition, the specific allowance is calculated based on discounted cash flows using the loan’s initial contractual effective interest rate or the fair value of the collateral less selling costs for collateral dependent loans. At March 31, 2014, the Company measured $7.3 million of impaired loans using discounted cash flows and the loan’s initial contractual effective interest rate and $16.2 million of impaired loans based on the fair value of the collateral less selling costs. Impaired loans totaling $9.6 million that individually were less than $250 thousand each, were measured through our general ALL reserves due to their relatively small size.
At March 31, 2014 and December 31, 2013, the Company’s recorded investments in impaired loans was $33.1 million and $21.6 million, respectively, of which $6.9 million and $7.7 million were covered by loss-sharing agreements, for the aforementioned periods. Impaired loans had a collective related allowance for loan losses allocated to them of $0.7 million and $0.9 million at March 31, 2014 and December 31, 2013, respectively. Additional information regarding impaired loans at March 31, 2014 and December 31, 2013 is set forth in the table below (in thousands):
	Impaired Loans
	March 31, 2014								December 31, 2013
	Unpaid			Recorded			Allowance		Unpaid		Recorded		Allowance
	principal			investment			for loan		principal		investment		for loan
	balance						losses		balance				losses
							allocated						allocated
With no related allowance recorded:
Commercial	$	7,024		$	7,015		$	—	$	4,981	$	4,981	$	—
Commercial real estate
Construction	—			—			—		—		—		—
Acquisition/development	398			398			—		—		—		—
Multifamily	972			898			—		987		929		—
Owner-occupied	1,826			1,606			—		1,872		1,655		—
Non-owner occupied	548			475			—		561		488		—
Total commercial real estate	3,744			3,377			—		3,420		3,072		—
Agriculture	9,143			9,132			—		—		—		—
Residential real estate
Senior lien	720			700			—		506		494		—
Junior lien	—			—			—		—		—		—
Total residential real estate	720			700			—		506		494		—
Consumer	—			—			—		—		—		—
Total impaired loans with no related allowance recorded	$	20,631		$	20,224		$	—	$	8,907	$	8,547	$	—
With a related allowance recorded:
Commercial	$	2,545		$	2,046		$	190	$	2,529	$	2,379	$	416
Commercial real estate
Construction	—			—			—		—		—		—
Acquisition/development	—			—			—		—		1		—
Multifamily	173			162			25		178		168		28
Owner-occupied	1,109			873			5		825		607		4
Non-owner occupied	634			623			2		640		628		4
Total commercial real estate	1,916			1,658			32		1,643		1,404		36
Agriculture	194			174			1		191		173		1
Residential real estate
Senior lien	8,136			7,197			438		8,147		7,266		474
Junior lien	1,769			1,555			15		1,815		1,605		16
Total residential real estate	9,905			8,752			453		9,962		8,871		490
Consumer	270			249			3		290		273		3
Total impaired loans with a related allowance recorded	$	14,830		$	12,879		$	679	$	14,615	$	13,100	$	946
Total impaired loans	$	35,461		$	33,103		$	679	$	23,522	$	21,647	$	946
The table below shows additional information regarding the average recorded investment and interest income recognized on impaired loans for the periods presented (in thousands):
	For the three months ended
	31-Mar-14						31-Mar-13
	Average recorded investment			Interest income recognized			Average recorded investment		Interest income recognized
With no related allowance recorded:
Commercial	$	7,562		$	94		$	11,033	$	128
Commercial real estate
Construction	—			—			—		—
Acquisition/development	398			5			—		—
Multifamily	908			—			—		—
Owner-occupied	1,622			26			5,036		80
Non owner-occupied	480			8			1,862		5
Total commercial real estate	3,408			39			6,898		85
Agriculture	9,132			119			—		—
Residential real estate
Senior lien	701			4			364		1
Junior lien	—			—			—		—
Total residential real estate	701			4			364		1
Consumer	—			—			—		—
Total impaired loans with no related allowance recorded	$	20,803		$	256		$	18,295	$	214
With a related allowance recorded:
Commercial	$	2,113		$	12		$	3,172	$	3
Commercial real estate
Construction	—			—			—		—
Acquisition/development	—			—			15		—
Multifamily	165			—			196		—
Owner-occupied	879			3			763		4
Non owner-occupied	625			7			6,544		3
Total commercial real estate	1,669			10			7,518		7
Agriculture	177			—			240		—
Residential real estate
Senior lien	7,243			27			6,791		21
Junior lien	1,566			15			1,096		11
Total residential real estate	8,809			42			7,887		32
Consumer	250			—			479		4
Total impaired loans with a related allowance recorded	$	13,018		$	64		$	19,296	$	46
Total impaired loans	$	33,821		$	320		$	37,591	$	260
Troubled debt restructurings
It is the Company’s policy to review each prospective credit in order to determine the appropriateness and the adequacy of security or collateral prior to making a loan. In the event of borrower default, the Company seeks recovery in compliance with state lending laws, the respective loan agreements, and credit monitoring and remediation procedures that may include restructuring a loan to provide a concession by the Company to the borrower from their original terms due to borrower financial difficulties in order to facilitate repayment. Additionally, if a borrower’s repayment obligation has been discharged by a court, and that debt has not been reaffirmed by the borrower, regardless of past due status, the loan is considered to be a troubled debt restructuring (“TDR”). At March 31, 2014 and December 31, 2013, the Company had $22.5 million and $11.6 million, respectively, of accruing TDRs that had been restructured from the original terms in order to facilitate repayment. Of these, $4.7 million and $5.7 million, respectively, were covered by FDIC loss-sharing agreements.
Non-accruing TDRs at March 31, 2014 and December 31, 2013 totaled $3.6 million. Of these, $1.7 million were covered by the FDIC loss-sharing agreements as of March 31, 2014 and December 31, 2013.
During the three months ended March 31, 2014, the Company restructured eight loans with a recorded investment of $12.5 million to facilitate repayment. Substantially all of the loan modifications were an extension of term. Loan modifications to loans accounted for under ASC 310-30 are not considered TDRs. The table below provides additional information related to accruing TDRs at March 31, 2014 and December 31, 2013 (in thousands):
	Accruing TDRs
	31-Mar-14
	Recorded			Average			Unpaid		Unfunded
	investment			year-to-			principal		commitments
				date			balance		to fund
				recorded					TDRs
				investment
Commercial	$	8,069		$	8,631		$	8,082	$	—
Commercial real estate	2,818			2,839			3,075		—
Agriculture	8,767			8,767			8,778		105
Residential real estate	2,841			2,856			2,869		12
Consumer	25			25			25		—
Total	$	22,520		$	23,118		$	22,829	$	117
	Accruing TDRs
	December 31, 2013
	Recorded			Average			Unpaid		Unfunded
	investment			year-to-			principal		commitments
				date			balance		to fund
				recorded					TDRs
				investment
Commercial	$	6,079		$	7,113		$	6,084	$	144
Commercial real estate	2,484			2,759			2,743		—
Agriculture	20			20			20		—
Residential real estate	2,995			3,055			3,023		12
Consumer	27			30			27		12
Total	$	11,605		$	12,977		$	11,897	$	168
The following table summarizes the Company’s carrying value of non-accrual TDRs as of March 31, 2014 and December 31, 2013 (in thousands):
	Non - Accruing TDRs
	March 31, 2014						December 31, 2013
	Covered			Non-covered			Covered		Non-covered
Commercial	$	30		$	497		$	—	$	535
Commercial real estate	283			92			296		98
Agriculture	—			18			—		—
Residential real estate	1,349			1,105			1,377		1,031
Consumer	—			224			—		237
Total	$	1,662		$	1,936		$	1,673	$	1,901
Accrual of interest is resumed on loans that were on non-accrual, only after the loan has performed sufficiently. The Company had two TDRs that had been modified within the past 12 months that defaulted on their restructured terms during the three months ended March 31, 2014. The defaulted TDRs were an agriculture loan and a consumer loan totaling $26 thousand.
During the three months ended March 31, 2013, the Company had three TDRs that had been modified within the past 12 months that defaulted on their restructured terms. The defaulted TDRs were a commercial loan, a commercial real estate loan, and a single family residential loan totaling $2.8 million. For purposes of this disclosure, the Company considers “default” to mean 90 days or more past due on principal or interest.
Loans accounted for under ASC Topic 310-30
Loan pools accounted for under ASC Topic 310-30 are periodically remeasured to determine expected future cash flows. In determining the expected cash flows, the timing of cash flows and prepayment assumptions for smaller homogeneous loans are based on statistical models that take into account factors such as the loan interest rate, credit profile of the borrowers, the years in which the loans were originated, and whether the loans are fixed or variable rate loans. Prepayments may be assumed on large loans if circumstances specific to that loan warrant a prepayment assumption. No prepayments were presumed for small homogeneous commercial loans; however, prepayment assumptions are made that consider similar prepayment factors listed above for smaller homogeneous loans. The re-measurement of loans accounted for under ASC 310-30 resulted in the following changes in the carrying amount of accretable yield during the three months ended March 31, 2014 and 2013 (in thousands):
	March 31,			March 31,
	2014			2013
Accretable yield beginning balance	$	130,624		$	133,585
Reclassification from non-accretable difference	6,164			16,134
Reclassification to non-accretable difference	(590		)	(1,202		)
Accretion	(16,900		)	(21,302		)
Accretable yield ending balance	$	119,298		$	127,215
Below is the composition of the net book value for loans accounted for under ASC 310-30 at March 31, 2014 and December 31, 2013 (in thousands):
	March 31,			December 31,
	2014			2013
Contractual cash flows	$	922,774		$	984,019
Non-accretable difference	(396,930		)	(402,515		)
Accretable yield	(119,298		)	(130,624		)
Loans accounted for under ASC 310-30	$	406,546		$	450,880

Allowance_for_Loan_Losses

Allowance for Loan Losses	3 Months Ended
	Mar. 31, 2014
Text Block [Abstract]	'
Allowance for Loan Losses	'
	Allowance for Loan Losses
	The tables below detail the Company’s allowance for loan losses (“ALL”) and recorded investment in loans as of and for the three months ended March 31, 2014 and 2013 (in thousands):
		Three months ended March 31, 2014
		Commercial			Commercial			Agriculture			Residential			Consumer			Total
					real estate						real estate
	Beginning balance	$	4,258		$	2,276		$	1,237		$	4,259		$	491		$	12,521
	Non 310-30 beginning balance	4,029			1,984			572			4,165			491			11,241
	Charge-offs	(386		)	—			—			(20		)	(171		)	(577		)
	Recoveries	58			37			—			90			76			261
	Provision (reversal)	1,880			(44		)	(24		)	(66		)	77			1,823
	Non 310-30 ending balance	5,581			1,977			548			4,169			473			12,748
	ASC 310-30 beginning balance	229			292			665			94			—			1,280
	Charge-offs	(2		)	—			—			—			—			(2		)
	Recoveries	—			—			—			—			—			—
	Provision (reversal)	(84		)	(56		)	—			(29		)	115			(54		)
	ASC 310-30 ending balance	143			236			665			65			115			1,224
	Ending balance	$	5,724		$	2,213		$	1,213		$	4,234		$	588		$	13,972
	Ending allowance balance attributable to:
	Non 310-30 loans individually evaluated for impairment	$	190		$	32		$	1		$	453		$	3		$	679
	Non 310-30 loans collectively evaluated for impairment	5,391			1,945			547			3,716			470			12,069
	ASC 310-30 loans	143			236			665			65			115			1,224
	Total ending allowance balance	$	5,724		$	2,213		$	1,213		$	4,234		$	588		$	13,972
	Loans:
	Non 310-30 individually evaluated for impairment	$	9,061		$	5,035		$	9,306		$	9,452		$	249		$	33,103
	Non 310-30 collectively evaluated for impairment	521,401			312,102			122,280			539,306			26,854			1,521,943
	ASC 310-30 loans	52,107			263,608			23,545			60,467			6,819			406,546
	Total loans	$	582,569		$	580,745		$	155,131		$	609,225		$	33,922		$	1,961,592
		Three months ended March 31, 2013
		Commercial			Commercial			Agriculture			Residential			Consumer			Total
					real estate						real estate
	Beginning balance	$	2,798		$	7,396		$	592		$	4,011		$	583		$	15,380
	Non 310-30 beginning balance	2,798			3,056			323			4,011			540			10,728
	Charge-offs	(629		)	(259		)	—			(75		)	(233		)	(1,196		)
	Recoveries	9			—			—			14			77			100
	Provision (reversal)	697			(305		)	201			406			109			1,108
	Non 310-30 ending balance	2,875			2,492			524			4,356			493			10,740
	ASC 310-30 beginning balance	—			4,340			269			—			43			4,652
	Charge-offs	—			(2,812		)	—			—			—			(2,812		)
	Recoveries	—			—			—			—			—			—
	Provision (reversal)	411			(1,045		)	—			986			(43		)	309
	ASC 310-30 ending balance	411			483			269			986			—			2,149
	Ending balance	$	3,286		$	2,975		$	793		$	5,342		$	493		$	12,889
	Ending allowance balance attributable to:
	Non 310-30 loans individually evaluated for impairment	$	1,125		$	371		$	1		$	721		$	13		$	2,231
	Non 310-30 loans collectively evaluated for impairment	1,750			2,121			523			3,635			480			8,509
	ASC 310-30 loans	411			483			269			986			—			2,149
	Total ending allowance balance	$	3,286		$	2,975		$	793		$	5,342		$	493		$	12,889
	Loans:
	Non 310-30 individually evaluated for impairment	$	13,381		$	14,314		$	227		$	8,214		$	469		$	36,605
	Non 310-30 collectively evaluated for impairment	172,421			241,818			117,930			437,971			28,456			998,596
	ASC 310-30 loans	78,928			490,608			46,580			101,386			12,747			730,249
	Total loans	$	264,730		$	746,740		$	164,737		$	547,571		$	41,672		$	1,765,450
	In evaluating the loan portfolio for an appropriate ALL level, non-impaired loans that were not accounted for under ASC 310-30 were grouped into segments based on broad characteristics such as primary use and underlying collateral. Within the segments, the portfolio was further disaggregated into classes of loans with similar attributes and risk characteristics for purposes of applying loss ratios and determining applicable subjective adjustments to the ALL. The application of subjective adjustments was based upon qualitative risk factors, including economic trends and conditions, industry conditions, asset quality, loss trends, lending management, portfolio growth and loan review/internal audit results.
	The Company charged-off $0.3 million, net of recoveries, of non 310-30 loans during the three months ended March 31, 2014, all of which had previously provided specific reserves. Strong credit quality trends of the non 310-30 loan portfolio continued during the three months ended March 31, 2014, and, through management's evaluation, resulted in a provision for loan losses on the non 310-30 loans of $1.8 million.
	During the three months ended March 31, 2014, the Company re-estimated the expected cash flows of the loan pools accounted for under ASC 310-30 utilizing the same cash flow methodology used at the time of acquisition. The re-measurement resulted in a net reversal of impairment of $54.0 thousand for the three months ended March 31, 2014 which was comprised of reversals of previous valuation allowances of $84.0 thousand, $56.0 thousand and $29.0 thousand in the commercial, commercial real estate and residential real estate segments, respectively, and net impairments of $115.0 thousand in the consumer segment.
	During the three months ended March 31, 2013, the Company recorded $1.1 million of provision for loan losses for loans not accounted for under ASC 310-30, primarily to provide for changes in credit risk inherent in new loan originations and provide for charge-offs. The Company charged off $1.1 million, net of recoveries, of non 310-30 loans during the three months ended March 31, 2013. Commercial charge-offs, net of recoveries, totaled $0.6 million, the commercial real estate segment experienced $0.3 million of net charge-offs, and net charge-offs on consumer loans totaled $0.2 million, for the three months ended March 31, 2013.
	During the three months ended March 31, 2013, the Company's re-measurement of expected future cash flows of ASC 310-30 loans resulted in a net impairment of $0.3 million, which was primarily driven by impairments of $1.0 million in the residential real estate segment and $0.4 million in the commercial segment, offset by a reversal of $1.0 million of previously recognized impairment expense in the commercial real estate segment as a result of gross cash flow improvements.

FDIC_Indemnification_Asset

FDIC Indemnification Asset	3 Months Ended
	Mar. 31, 2014
Investments, Debt and Equity Securities [Abstract]	'
FDIC Indemnification Asset	'
	FDIC Indemnification Asset
	Under the terms of the purchase and assumption agreement with the FDIC with regard to the Hillcrest Bank and Community Banks of Colorado acquisitions, the Company is reimbursed for a portion of the losses incurred on covered assets. Covered assets may be resolved through repayment, short sale of the underlying collateral, the foreclosure on and sale of collateral, or the sale or charge-off of loans or OREO. Any gains or losses realized from the resolution of covered assets reduce or increase, respectively, the amount recoverable from the FDIC. Covered gains or losses that are incurred in excess of the expected reimbursements (which are reflected in the FDIC indemnification asset balance), are recognized in the consolidated statements of operations as FDIC loss sharing income in the period in which they occur.
	Below is a summary of the activity related to the FDIC indemnification asset during the three months ended March 31, 2014 and 2013 (in thousands):
		For the three months ended
		March 31,			March 31,
		2014			2013
	Balance at beginning of period	$	64,447		$	86,923
	Amortization	(7,608		)	(4,669		)
	FDIC portion of (recoveries) charge-offs exceeding fair value marks	(133		)	2,576
	Reduction for claims filed	(29		)	(9,132		)
	Balance at end of period	$	56,677		$	75,698
	The $7.6 million of amortization of the FDIC indemnification asset recognized during the three months ended March 31, 2014 resulted from an overall increase in actual and expected cash flows of the underlying covered assets, resulting in lower expected reimbursements from the FDIC. The increase in overall expected cash flows from these underlying assets is reflected in increased accretion rates on covered loans and is being recognized over the expected remaining lives of the underlying covered loans as an adjustment to yield. The loss claims filed with the FDIC are subject to review and approval, including extensive audits by the FDIC or its assigned agents for compliance with the terms in the loss sharing agreements. During the three months ended March 31, 2014, the Company received $29 thousand in payments from the FDIC.
	During the three months ended March 31, 2013, the Company recognized $4.7 million of amortization on the FDIC indemnification asset, and further reduced the carrying value of the FDIC indemnification asset by $9.1 million as a result of claims filed with the FDIC. During the three months ended March 31, 2013, the Company received $57.9 million in payments from the FDIC.

Other_Real_Estate_Owned

Other Real Estate Owned	3 Months Ended
	Mar. 31, 2014
Banking and Thrift [Abstract]	'
Other Real Estate Owned	'
	Other Real Estate Owned
	A summary of the activity in the OREO balances during the three months ended March 31, 2014 and 2013 is as follows (in thousands):
		For the three months ended March 31,
		2014			2013
	Beginning balance	$	70,125		$	94,808
	Transfers from loan portfolio, at fair value	236			17,043
	Impairments	(822		)	(4,600		)
	Sales	(4,143		)	(25,726		)
	Gain on sale of OREO, net	587			1,805
	Ending balance	$	65,983		$	83,330
	Of the $66.0 million of OREO at March 31, 2014, $36.6 million, or 55.4%, was covered by loss sharing agreements with the FDIC. At December 31, 2013, $38.8 million, or 55.4%, of the $70.1 million of OREO was covered by loss sharing agreements. Any losses on these assets are substantially offset by a corresponding change in the FDIC indemnification asset.
	The OREO balances include the interests of several outside participating banks totaling $4.2 million at March 31, 2014 and December 31, 2013, for which an offsetting liability is recorded in other liabilities. It excludes $10.6 million, for both of the respective periods, of the Company’s minority interests in OREO which are held by outside banks where the Company was not the lead bank and does not have a controlling interest, for which the Company maintains a receivable in other assets.

Regulatory_Capital

Regulatory Capital	3 Months Ended
	Mar. 31, 2014
Banking and Thrift [Abstract]	'
Regulatory Capital	'
	Regulatory Capital
	At March 31, 2014 and December 31, 2013, NBH Bank, N.A. and the consolidated holding company exceeded all capital ratio requirements under prompt corrective action or other regulatory requirements, as is detailed in the table below (in thousands):
		March 31, 2014
		Actual				Required to be				Required to be
						considered well				considered
						capitalized (1)				adequately
										capitalized
		Ratio		Amount		Ratio		Amount		Ratio		Amount
	Tier 1 leverage ratio
	Consolidated	16.8	%	$	814,857	N/A		N/A		4	%	$	193,915
	NBH Bank, N.A.	11.6	%	560,025		10	%	$	482,407	4	%	192,963
	Tier 1 risk-based capital ratio (2)
	Consolidated	36.8	%	$	814,857	6	%	$	132,791	4	%	$	88,528
	NBH Bank, N.A.	25.5	%	560,025		11	%	241,156		4	%	87,693
	Total risk-based capital ratio (2)
	Consolidated	37.5	%	$	829,230	10	%	$	221,319	8	%	$	177,055
	NBH Bank, N.A.	26.2	%	574,398		12	%	263,079		8	%	175,386
		December 31, 2013
		Actual				Required to be				Required to be
						considered well				considered
						capitalized (1)				adequately
										capitalized
		Ratio		Amount		Ratio		Amount		Ratio		Amount
	Tier 1 leverage ratio
	Consolidated	16.6	%	$	822,688	N/A		N/A		4	%	$	197,906
	NBH Bank, N.A.	11.3	%	556,876		10	%	$	491,294	4	%	196,518
	Tier 1 risk-based capital ratio (2)
	Consolidated	38.9	%	$	822,688	6	%	$	126,865	4	%	$	84,577
	NBH Bank, N.A.	26.6	%	556,876		11	%	230,334		4	%	83,758
	Total risk-based capital ratio (2)
	Consolidated	39.5	%	$	835,810	10	%	$	211,442	8	%	$	169,153
	NBH Bank, N.A.	27.2	%	569,998		12	%	251,273		8	%	167,515
	-1	These ratio requirements are reflective of the agreements the Company has made with its various regulators in connection with the approval of the de novo charter for NBH Bank, N.A.
	-2	Due to the conditional guarantee represented by the loss sharing agreements, the FDIC indemnification asset and covered assets are risk-weighted at 20% for purposes of risk-based capital computations.

FDIC_Loss_Sharing_Income

FDIC Loss Sharing Income	3 Months Ended
	Mar. 31, 2014
Text Block [Abstract]	'
FDIC Loss Sharing Income	'
	FDIC Loss Sharing Income (Expense)
	In connection with the loss sharing agreements that the Company has with the FDIC with regard to the Hillcrest Bank and Community Banks of Colorado transactions, the Company recognizes the actual reimbursement of costs of resolution of covered assets from the FDIC through the statements of operations. The table below provides additional details of the Company’s FDIC loss sharing income (expense) during the three months ended March 31, 2014 and 2013 (in thousands):
		For the three months ended
		March 31, 2014			March 31, 2013
	Clawback liability amortization	$	(328	)	$	(313	)
	Clawback liability remeasurement	(516		)	573
	Reimbursement to FDIC for gain on sale of and income from covered OREO	(918		)	(860		)
	Reimbursement to FDIC for recoveries	(85		)	(15		)
	FDIC reimbursement of covered asset resolution costs	890			3,891
	Total	$	(957	)	$	3,276

Stockbased_Compensation_and_Em

Stock-based Compensation and Employee Benefits	3 Months Ended
	Mar. 31, 2014
Text Block [Abstract]	'
Stock-based Compensation and Employee Benefits	'
	Stock-based Compensation and Benefits
	The Company provides stock-based compensation in accordance with the NBH Holdings Corp. 2009 Equity Incentive Plan (the “Plan”). The Plan provides the compensation committee of the board of directors of the Company the authority to grant, from time to time, awards of options, stock appreciation rights, restricted stock, restricted stock units, stock awards, or stock bonuses to eligible persons. The aggregate number of shares of stock which may be granted under the Plan was 5,750,000 and the maximum number of restricted shares and restricted share units that may be granted was 1,725,000.
	To date, the Company has issued stock options and restricted stock under the Plan. The compensation committee sets the option exercise price at the time of grant but in no case is the exercise price less than the fair market value of a share of stock at the date of grant. The Company used information provided by third parties, including independent valuation specialists, as required by the Plan, to assist in the determination of estimates regarding fair values associated with the Company’s stock-based compensation issued prior to the Company’s initial public offering and listing on a national exchange, including contemporaneous valuations of grant date fair values. The Company is responsible for the assumptions used therein and the resulting values.
	The Company did not issue any stock options or restricted stock in accordance with the NBH Holdings Corp. 2009 Equity Incentive Plan (the “Plan”) during the three months ended March 31, 2014. The following table summarizes stock option activity for the three months ended March 31, 2014:
		Options		Weighted		Weighted	Aggregate
				Average		Average	Intrinsic
				Exercise		Remaining	Value
				Price		Contractual
						Term in
						Years
	Outstanding at December 31, 2013	3,515,486		$	19.92	6.13	$	5,183,567
	Granted	—		—
	Forfeited	—		—
	Surrendered	(9,705	)	20
	Exercised	(295	)	20
	Expired	(2,083	)	20
	Outstanding at March 31, 2014	3,503,403		$	19.92	5.91	$	520,681
	Options fully vested and exercisable at March 31, 2014	2,887,166		$	20	5.76	$	202,102
	Options expected to vest	573,660		$	19.62	6.34	$	459,678
	Stock option expense is included in salaries and benefits in the accompanying consolidated statements of operations and totaled $0.3 million and $0.7 million for the three months ended March 31, 2014 and 2013, respectively. At March 31, 2014, there was $1.0 million of total unrecognized compensation cost related to non-vested stock options granted under the Plan. The cost is expected to be recognized over a weighted average period of 0.8 years.
	Expense related to non-vested restricted stock totaled $0.4 million and $0.7 million during the three months ended March 31, 2014 and 2013, respectively, and is included in salaries and benefits in the Company’s consolidated statements of operations. As of March 31, 2014, there was $1.3 million of total unrecognized compensation cost related to non-vested restricted shares granted under the Plan, which is expected to be recognized over a weighted average period of 1.2 years. The following table summarizes restricted stock activity for the three months ended March 31, 2014:
		Total Restricted Shares		Weighted Average Grant-Date Fair Value
	Unvested at December 31, 2013	1,064,460		15.16
	Vested	(22,542	)	19.94
	Granted	—		—
	Forfeited	(10,000	)	13.14
	Surrendered	(10,791	)	19.94
	Unvested at March 31, 2014	1,021,127		15.02

Warrants

Warrants	3 Months Ended
	Mar. 31, 2014
Warrants and Rights Note Disclosure [Abstract]	'
Warrants	'
	Warrants
	At March 31, 2014 and December 31, 2013, the Company had 830,750 outstanding warrants to purchase Company stock. The warrants were granted to certain lead shareholders of the Company, all with an exercise price of $20.00 per share. The term of the warrants is for ten years from the date of grant and the expiration dates of the warrants range from October 20, 2019 to September 30, 2020. The fair value of the warrants was estimated to be $5.4 million and $6.3 million at March 31, 2014 and December 31, 2013, respectively. The fair value of the warrants was estimated using a Black-Scholes option pricing model utilizing the following assumptions at the indicated dates:
		March 31, 2014		December 31, 2013
	Risk-free interest rate	1.99	%	2.16	%
	Expected volatility	34.04	%	33.8	%
	Expected term (years)	6-May		7-Jun
	Dividend yield	1	%	0.93	%
	The Company’s shares became publicly traded on September 20, 2012 and prior to that, had limited private trading. Due to the limited historical volatility of the Company's own stock, expected volatility was calculated using a time-based weighted migration of the Company’s own stock price volatility coupled with the median historical volatility, for a period commensurate with the expected term of the warrants, of those of a peer group. The risk-free rate for the expected term of the warrants was based on the U.S. Treasury yield curve and based on the expected term. The expected term was estimated based on the contractual term of the warrants.
	The Company recorded a benefit of $0.9 million and $0.6 million for the three months ended March 31, 2014 and 2013, respectively, in the consolidated statements of operations resulting from the change in fair value of the warrant liability.

Common_Stock

Common Stock	3 Months Ended
	Mar. 31, 2014
Equity [Abstract]	'
Common Stock	'
	Common Stock
	On January 23, 2014, the Board of Directors authorized a new share repurchase program to repurchase up to $50 million of the Company’s common stock through December 31, 2014. This new program replaced the previous $35 million share repurchase program approved during the fourth quarter of 2013. Under the new share repurchase program, shares may be acquired from time to time either in the open market or in privately negotiated transactions in accordance with applicable regulations of the Securities and Exchange Commission. During the three months ended March 31, 2014, the Company repurchased 454,706 shares for $8.8 million at a weighted average price of $19.35 per share.
	The Company had 41,458,693 shares of Class A common stock and 3,027,774 shares of Class B common stock outstanding as of March 31, 2014, and 41,890,562 shares of Class A common stock and 3,027,774 shares of Class B common stock outstanding as of December 31, 2013. Additionally, as of March 31, 2014 and December 31, 2013, the Company had 1,021,127 and 1,064,460 shares, respectively, of restricted Class A common stock issued but not yet vested under the NBH Holdings Corp. 2009 Equity Incentive Plan.

Income_Per_Share

Income Per Share	3 Months Ended
	Mar. 31, 2014
Earnings Per Share [Abstract]	'
Income Per Share	'
	Income Per Share
	The Company calculates income per share under the two-class method, as certain non-vested share awards contain non-forfeitable rights to dividends. As such, these awards are considered securities that participate in the earnings of the Company. Non-vested shares are discussed further in note 10.
	The Company had 44,486,467 and 52,314,909 shares outstanding (inclusive of Class A and B) as of March 31, 2014 and 2013, respectively. Certain stock options and non-vested restricted shares are potentially dilutive securities, but are not included in the calculation of diluted earnings per share because to do so would have been anti-dilutive for three months ended March 31, 2014 and 2013, respectively.
	The following table illustrates the computation of basic and diluted income per share for the three months ended March 31, 2014 and 2013 (in thousands, except share and earnings per share information):
		For the three months ended
		March 31,			March 31,
		2014			2013
	Distributed earnings	$	2,276		$	2,663
	Undistributed earnings (distributions in excess of earnings)	(845		)	(581		)
	Net income	$	1,431		$	2,082
	Less: earnings allocated to participating securities	(5		)	—
	Earnings allocated to common shareholders	$	1,426		$	2,082
	Weighted average shares outstanding for basic earnings per common share	44,819,644			52,320,622
	Dilutive effect of equity awards	35,827			25,903
	Dilutive effect of warrants	7,667			—
	Weighted average shares outstanding for diluted earnings per common share	44,863,138			52,346,525
	Basic earnings per share	$	0.03		$	0.04
	Diluted earnings per share	$	0.03		$	0.04
	The Company had 3,503,403 and 3,478,665 outstanding stock options to purchase common stock at weighted average exercise prices of $19.92 and $19.98 per share at March 31, 2014 and 2013, respectively, which have time-vesting criteria, and as such, any dilution is derived only for the time frame in which the vesting criteria had been met and where the inclusion of those stock options is dilutive. Additionally, the Company had 830,750 outstanding warrants to purchase the Company’s common stock as of March 31, 2014 and 2013. The warrants have an exercise price of $20.00, which was out-of-the-money for purposes of dilution calculations during the three months ended March 31, 2013. The Company had 1,021,127 and 951,668 unvested restricted shares outstanding as of March 31, 2014 and 2013, respectively, which have performance, market and time-vesting criteria, and as such, any dilution is derived only for the time frame in which the vesting criteria had been met and where the inclusion of those restricted shares is dilutive

Derivatives

Derivatives	3 Months Ended
	Mar. 31, 2014
Derivative Instruments and Hedging Activities Disclosure [Abstract]	'
Derivatives	'
	Derivatives
	Risk management objective of using derivatives
	The Company is exposed to certain risks arising from both its business operations and economic conditions. The Company has established policies that neither carrying value nor fair value at risk should exceed established guidelines. The Company has designed strategies to confine these risks within the established limits and identify appropriate trade-offs in the financial structure of its balance sheet. These strategies include the use of derivative financial instruments to help achieve the desired balance sheet repricing structure while meeting the desired objectives of its clients. Currently the Company employs certain interest rate swaps that are designated as fair value hedges as well as economic hedges. The Company manages a matched book with respect to its derivative instruments in order to minimize its net risk exposure resulting from such transactions.
	Fair values of derivative instrument of the balance sheet
	The table below presents the fair value of the Company’s derivative financial instruments as well as their classification on the Consolidated Statements of Financial Condition as of March 31, 2014 and December 31, 2013 (dollars in thousands).
	Information about the valuation methods used to measure fair value is provided in note 15.
				Asset Derivatives									Liability Derivatives
				Fair Value									Fair Value
		Balance Sheet Location		March 31, 2014				December 31, 2013			Balance Sheet Location		March 31, 2014			December 31, 2013
	Derivatives designated as hedging instruments
	Interest rate products	Other assets		$	1			$	129		Other liabilities		$	485		$	—
	Total derivatives designated as hedging instruments			$	1			$	129				$	485		$	—
	Derivatives not designated as hedging instruments
	Interest rate products	Other assets		$	204			$	73		Other liabilities		$	219		$	74
	Total derivatives not designated as hedging instruments			$	204			$	73				$	219		$	74
	Fair value hedges of interest rate risk
	Interest rate swaps designated as fair value hedges involve the receipt of variable-rate amounts from a counterparty in exchange for the Company making fixed-rate payments over the life of the agreements without the exchange of the underlying notional amount. As of March 31, 2014, the Company had four interest rate swaps with a notional amount of $30.5 million that were designated as fair value hedges of interest rate risk associated with the Company’s fixed-rate loans. The Company had one outstanding interest rate swap with a notional amount of $10.0 million that was designated as a fair value hedge as of December 31, 2013.
	For derivatives designated and that qualify as fair value hedges, the gain or loss on the derivative as well as the offsetting loss or gain on the hedged item attributable to the hedged risk are recognized in earnings. The Company includes the gain or loss on the hedged items in the same line item as the offsetting loss or gain on the related derivatives. During the three months ended March 31, 2014, the Company recognized a net loss of $72.9 thousand in non-interest expense related to hedge ineffectiveness. During the three months ended March 31, 2013, the Company did not participate in fair value hedges that would result in hedge ineffectiveness.
	Non-designated hedges
	Derivatives not designated as hedges are not speculative and consist of interest rate swaps with commercial banking clients that facilitate their respective risk management strategies. Those interest rate swaps are simultaneously hedged by offsetting interest rate swaps that the Company executes with a third party, such that the Company minimizes its net risk exposure resulting from such transactions. As the interest rate swaps associated with this program do not meet the strict hedge accounting requirements, changes in the fair value of both the client swaps and the offsetting swaps are recognized directly in earnings. As of March 31, 2014, the Company had four matched interest rate swap transactions with an aggregate notional amount of $9.2 million related to this program. As of December 31, 2013, the Company had three matched interest rate swap transactions with an aggregate notional amount of $7.3 million related to this program.
	Effect of Derivative Instruments on the Consolidated Statement of Operations
	The tables below present the effect of the Company’s derivative financial instruments on the consolidated statement of operations for the three months ended March 31, 2014 and 2013 (in thousands).
	Derivatives in fair value hedging relationships		Location of gain or (loss) recognized in income on derivative		Amount of gain or (loss) recognized in income on derivative							Amount of gain or (loss) recognized in income on hedged item
					For the three months ended March 31,							For the three months ended March 31,
					2014				2013			2014			2013
	Interest rate products		Interest income		$	(614	)		$	—		$	541		$	—
	Total				$	(614	)		$	—		$	541		$	—
					Amount of gain or (loss) recognized in income on derivative
					For the three months ended March 31,
	Derivatives not designated as hedging instruments		Location of gain or (loss) recognized in income on derivative		2014				2013
	Interest rate products		Other non-interest income		$	(14	)		—
	Total				$	(14	)		—
	Credit-risk-related Contingent Features
	The Company has agreements with its derivative counterparties that contain a provision where if the Company defaults on any of its indebtedness for reasons other than an error or omission of an administrative or operational nature, including default where repayment of the indebtedness has not been accelerated by the lender, then the Company could also be declared in default on its derivative obligations.
	The Company also has agreements with certain of its derivative counterparties that contain a provision where if the Company fails to maintain its status as a well/adequately capitalized institution, then the counterparty has the right to terminate the derivative positions and the Company would be required to settle its obligations under the agreements.
	As of March 31, 2014, the termination value of derivatives in a net liability position related to these agreements was $1.0 million, which includes accrued interest but excludes any adjustment for nonperformance risk. The Company has minimum collateral posting thresholds with certain of its derivative counterparties and as of March 31, 2014, the Company had posted $0.9 million in eligible collateral.

Fair_Value_Measurements

Fair Value Measurements	3 Months Ended
	Mar. 31, 2014
Fair Value Disclosures [Abstract]	'
Fair Value Measurements	'
	Fair Value Measurements
	The Company uses fair value measurements to record fair value adjustments to certain assets and liabilities and to disclose the fair value of its financial instruments. Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. For disclosure purposes, the Company groups its financial and non-financial assets and liabilities into three different levels based on the nature of the instrument and the availability and reliability of the information that is used to determine fair value. The three levels are defined as follows:
	•	Level 1—Includes assets or liabilities in which the inputs to the valuation methodologies are based on unadjusted quoted prices in active markets for identical assets or liabilities.
	•	Level 2—Includes assets or liabilities in which the inputs to the valuation methodologies are based on similar assets or liabilities in inactive markets, quoted prices for identical or similar assets or liabilities in inactive markets, and inputs other than quoted prices that are observable, such as interest rates, yield curves, volatilities, prepayment speeds, and other inputs obtained from observable market input.
	•	Level 3—Includes assets or liabilities in which the inputs to the valuation methodology are based on at least one significant assumption that is not observable in the marketplace. These valuations may rely on management’s judgment and may include internally-developed model-based valuation techniques.
	Level 1 inputs are considered to be the most transparent and reliable and level 3 inputs are considered to be the least transparent and reliable. The Company assumes the use of the principal market to conduct a transaction of each particular asset or liability being measured and then considers the assumptions that market participants would use when pricing the asset or liability. Whenever possible, the Company first looks for quoted prices for identical assets or liabilities in active markets (level 1 inputs) to value each asset or liability. However, when inputs from identical assets or liabilities on active markets are not available, the Company utilizes market observable data for similar assets and liabilities. The Company maximizes the use of observable inputs and limits the use of unobservable inputs to occasions when observable inputs are not available. The need to use unobservable inputs generally results from the lack of market liquidity of the actual financial instrument or of the underlying collateral. Although, in some instances, third party price indications may be available, limited trading activity can challenge the observability of these quotations.
	Changes in the valuation inputs used for measuring the fair value of financial instruments may occur due to changes in current market conditions or other factors. Such changes may necessitate a transfer of the financial instruments to another level in the hierarchy based on the new inputs used. The Company recognizes these transfers at the end of the reporting period that the transfer occurs. During the three months ended March 31, 2014 and 2013, there were no transfers of financial instruments between the hierarchy levels.
	The following is a description of the valuation methodologies used for assets and liabilities measured at fair value, as well as the general classification of each instrument under the valuation hierarchy:
	Fair Value of Financial Instruments Measured on a Recurring Basis
	Investment securities available-for-sale—Investment securities available-for-sale are carried at fair value on a recurring basis. To the extent possible, observable quoted prices in an active market are used to determine fair value and, as such, these securities are classified as level 1. At March 31, 2014 and December 31, 2013, the Company did not hold any level 1 securities. When quoted market prices in active markets for identical assets or liabilities are not available, quoted prices of securities with similar characteristics, discounted cash flows or other pricing characteristics are used to estimate fair values and the securities are then classified as level 2. At March 31, 2014 and December 31, 2013, the Company’s level 2 securities included asset backed securities, mortgage-backed securities comprised of residential mortgage pass-through securities, and other residential mortgage-backed securities. All other investment securities are classified as level 3.
	Derivatives—The Company's derivative instruments are limited to interest rate swaps that may be accounted for as fair value hedges or non-designated hedges. The fair values of the swaps incorporate credit valuation adjustments in order to appropriately reflect nonperformance risk in the fair value measurements. The credit valuation adjustment is the dollar amount of the fair value adjustment related to credit risk and utilizes a probability weighted calculation to quantify the potential loss over the life of the trade. The credit valuation adjustments are calculated by determining the total expected exposure of the derivatives (which incorporates both the current and potential future exposure) and then applying the respective counterparties’ credit spreads to the exposure offset by marketable collateral posted, if any. Certain derrivative transactions are executed with counterparties who are large financial institutions ("dealers"). International Swaps and Derivative Association Master Agreements ("ISDA") and Credit Support Annexes ("CSA") are employed for all contracts with dealers. These contracts contain bilateral collateral arrangements. The fair value inputs of these financial instruments are determined using discounted cash flow analysis through the use of third-party models whose significant inputs are readily observable market parameters, primarily yield curves, with appropriate adjustments for liquidity and credit risk, and are classified as level 2.
	Warrant liability—The Company measures the fair value of the warrant liability on a recurring basis using a Black-Scholes option pricing model. The Company’s shares became publicly traded on September 20, 2012 and prior to that, had limited private trading; therefore, expected volatility was estimated using a time-based weighted migration of the Company’s own stock price volatility coupled with the median historical volatility, for a period commensurate with the expected term of the warrants, of those of 9 comparable companies with publicly traded shares, and is deemed a significant unobservable input to the valuation model.
	Clawback liability—The Company periodically measures the net present value of expected future cash payments to be made by the Company to the FDIC that must be made within 45 days of the conclusion of the loss sharing. The expected cash flows are calculated in accordance with the loss sharing agreements and are based primarily on the expected losses on the covered assets, which involve significant inputs that are not market observable.
	The tables below present the financial instruments measured at fair value on a recurring basis as of March 31, 2014 and December 31, 2013 on the consolidated statements of financial condition utilizing the hierarchy structure described above (in thousands):
		March 31, 2014
		Level 1			Level 2			Level 3		Total
	Assets:
	Investment securities available-for-sale:
	Asset backed securities	$	—		$	2,068		$	—	$	2,068
	Mortgage-backed securities (“MBS”):
	Residential mortgage pass-through securities issued or guaranteed by U.S. Government agencies or sponsored enterprises	—			472,956			—		472,956
	Other residential MBS issued or guaranteed by U.S. Government agencies or sponsored enterprises	—			1,245,397			—		1,245,397
	Other securities	—			—			419		419
	Derivatives	—			205			—		205
	Total assets at fair value	$	—		$	1,720,626		$	419	$	1,721,045
	Liabilities:
	Warrant liability	$	—		$	—		$	5,383	$	5,383
	Clawback liability	—			—			33,309		33,309
	Derivatives	—			704			—		704
	Total liabilities at fair value	$	—		$	704		$	38,692	$	39,396
		December 31, 2013
		Level 1			Level 2			Level 3		Total
	Assets:
	Investment securities available-for-sale:
	Asset backed securities	$	—		$	4,537		$	—	$	4,537
	Mortgage-backed securities (“MBS”):
	Residential mortgage pass-through securities issued or guaranteed by U.S. Government agencies or sponsored enterprises	—			494,990			—		494,990
	Other residential MBS issued or guaranteed by U.S. Government agencies or sponsored enterprises	—			1,285,582			—		1,285,582
	Other securities	—			—			419		419
	Derivatives	—			202			—		202
	Total assets at fair value	$	—		$	1,785,311		$	419	$	1,785,730
	Liabilities:
	Warrant liability	$	—		$	—		$	6,281	$	6,281
	Clawback liability	—			—			32,465		32,465
	Derivatives	—			74					74
	Total liabilities at fair value	$	—		$	74		$	38,746	$	38,820
	The table below details the changes in level 3 financial instruments during the three months ended March 31, 2014 and March 31, 2013 (in thousands):
		Warrant			Clawback
		liability			liability
	Balance at December 31, 2012	$	5,461		$	31,271
	Change in value	(627		)	(573		)
	Amortization	—			313
	Net change in level 3	$	(627	)	$	(260	)
	Balance at March 31, 2013	$	4,834		$	31,011
	Balance at December 31, 2013	$	6,281		$	32,465
	Change in value	(898		)	516
	Amortization	—			328
	Settlement	—			—
	Net change in Level 3	(898		)	844
	Balance at March 31, 2014	$	5,383		$	33,309
	Fair Value of Financial Instruments Measured on a Non-recurring Basis
	Certain assets may be recorded at fair value on a non-recurring basis as conditions warrant. These non-recurring fair value measurements typically result from the application of lower of cost or fair value accounting or a write-down occurring during the period.
	The Company records collateral dependent loans that are considered to be impaired at their estimated fair value. A loan is considered impaired when it is probable that the Company will be unable to collect all contractual amounts due in accordance with the terms of the loan agreement. Collateral dependent impaired loans are measured based on the fair value of the collateral. The Company relies on third-party appraisals and internal assessments in determining the estimated fair values of these loans. The inputs used to determine the fair values of loans are considered level 3 inputs in the fair value hierarchy. During the three months ended March 31, 2014, the Company measured 25 loans not accounted for under ASC 310-30 at fair value on a non-recurring basis. These loans carried specific reserves totaling $0.6 million at March 31, 2014. During the three months ended March 31, 2014, the Company added specific reserves of $0.1 million for three loans with carrying balances of $3.3 million at March 31, 2014. The Company also eliminated specific reserves of $0.4 million for five loans during the three months ended March 31, 2014, primarily due to paydowns on these loans.
The Company may be required to record fair value adjustments on loans held-for-sale on a non-recurring basis. The non-recurring fair value adjustments could involve lower of cost or fair value accounting and may include write-downs.
OREO is recorded at the lower of the loan balance or the fair value of the collateral less estimated selling costs. The estimated fair values of OREO are updated periodically and further write-downs may be taken to reflect a new basis. The Company recognized $0.8 million of OREO impairments in its consolidated statements of operations during the three months ended March 31, 2014, of which $0.6 million, or 69.6% , were on OREO that was covered by loss sharing agreements with the FDIC. During the three months ended March 31, 2013, the Company recognized $4.5 million of OREO impairments in its consolidated statements of financial condition, of which $3.1 million, or 67.5% , were on OREO that was covered by loss sharing agreements with the FDIC. The fair values of OREO are derived from third party price opinions or appraisals that generally use an income approach or a market value approach. If reasonable comparable appraisals are not available, then the Company may use internally developed models to determine fair values. The inputs used to determine the fair values of OREO are considered level 3 inputs in the fair value hierarchy.
The table below provides information regarding the assets recorded at fair value on a non-recurring basis during the three months ended March 31, 2014 (in thousands):
	March 31, 2014
	Level 1			Level 2			Level 3		Total		Losses from fair value changes
Other real estate owned	$	—		$	—		$	65,983	$	65,983	$	822
Impaired loans	$	—		$	—		$	33,103	$	33,103	$	465
	31-Mar-13
	Level 1			Level 2			Level 3		Total		Losses from fair value changes
Other real estate owned	$	—		$	—		$	83,330	$	83,330	$	4,526
Impaired loans	$	—		$	—		$	36,605	$	36,605	$	4,911
The Company did not record any liabilities for which the fair value was made on a non-recurring basis during the three months ended March 31, 2014.
The following table provides information about the valuation techniques and unobservable inputs used in the valuation of financial instruments falling within level 3 of the fair value hierarchy as of March 31, 2014. The table below excludes non-recurring fair value measurements of collateral value used for impairment measures for OREO. These valuations utilize third party appraisal or broker price opinions, and are classified as level 3 due to the significant judgment involved (in thousands):
	Fair value at			Valuation Technique		Unobservable Input	Quantitative
	March 31,						Measures
	2014
Other securities	$	419		Cash investment in private equity fund		Cash investment
Impaired loans	33,103			Appraised value		Appraised values
						Discount rate	0-25%
Clawback liability	33,309			Contractually defined discounted cash flows		Intrinsic loss estimates	$323.3 million -
							$405 million
						Expected credit losses	—
						Discount rate	4%
Warrant liability	5,383			Black-Scholes		Volatility	19%-47%

Fair_Value_of_Financial_Instru

Fair Value of Financial Instruments	3 Months Ended
	Mar. 31, 2014
Fair Value Disclosures [Abstract]	'
Fair Value of Financial Instruments	'
	Fair Value of Financial Instruments
	The fair value of a financial instrument is the amount that would be exchanged between willing parties, other than in a forced liquidation. Fair value is determined based upon quoted market prices to the extent possible; however, in many instances, there are no quoted market prices for the Company’s various financial instruments. In cases where quoted market prices are not available, fair values are based on estimates using present value or other valuation techniques that may be significantly impacted by the assumptions used, including the discount rate and estimates of future cash flows. Changes in any of these assumptions could significantly affect the fair value estimates. The fair value of the financial instruments listed below does not reflect a premium or discount that could result from offering all of the Company’s holdings of financial instruments at one time, nor does it reflect the underlying value of the Company, as ASC Topic 825 excludes certain financial instruments and all non-financial instruments from its disclosure requirements. In connection with the Hillcrest Bank, Bank Midwest, Bank of Choice and Community Banks of Colorado acquisitions, the Company recorded all of the acquired assets and assumed liabilities at fair value at the respective dates of acquisition. The fair value of financial instruments at March 31, 2014 and December 31, 2013, including methods and assumptions utilized for determining fair value of financial instruments, are set forth below (in thousands):
			31-Mar-14				31-Dec-13
		Level in fair	Carrying		Estimated		Carrying		Estimated
		value	amount		fair value		amount		fair value
		measurement
		hierarchy
	ASSETS:
	Cash and cash equivalents	Level 1	$	197,815	$	197,815	$	189,460	$	189,460
	Asset backed securities available-for-sale	Level 2	2,068		2,068		4,537		4,537
	Mortgage-backed securities—residential mortgage pass-through securities issued or guaranteed by U.S. Government agencies or sponsored enterprises available-for-sale	Level 2	472,956		472,956		494,990		494,990
	Mortgage-backed securities—other residential mortgage-backed securities issued or guaranteed by U.S. Government agencies or sponsored enterprises available-for-sale	Level 2	1,245,397		1,245,397		1,285,582		1,285,582
	Other securities	Level 3	419		419		419		419
	Mortgage-backed securities—residential mortgage pass-through securities issued or guaranteed by U.S. Government agencies or sponsored enterprises held-to-maturity	Level 2	492,294		492,969		513,090		511,489
	Mortgage-backed securities—other residential mortgage-backed securities issued or guaranteed by U.S. Government agencies or sponsored enterprises held-to-maturity	Level 2	123,927		121,154		128,817		124,916
	Capital stock of FHLB	Level 2	6,089		6,089		6,643		6,643
	Capital stock of FRB	Level 2	25,020		25,020		25,020		25,020
	Loans receivable, net	Level 3	1,947,620		2,015,036		1,841,573		1,923,888
	Loans held-for-sale	Level 2	2,143		2,143		5,787		5,787
	Accrued interest receivable	Level 2	12,197		12,197		11,355		11,355
	Derivatives	Level 2	205		205		202		202
	LIABILITIES:
	Deposit transaction accounts	Level 2	2,422,198		2,422,198		2,342,622		2,342,622
	Time deposits	Level 2	1,443,898		1,446,661		1,495,687		1,498,798
	Securities sold under agreements to repurchase	Level 2	91,065		91,065		99,547		99,547
	Due to FDIC	Level 3	33,309		33,309		41,882		41,882
	Warrant liability	Level 3	5,383		5,383		6,281		6,281
	Accrued interest payable	Level 2	3,112		3,112		3,058		3,058
	Derivatives	Level 2	704		704		74		74
	Cash and cash equivalents
	Cash and cash equivalents have a short-term nature and the estimated fair value is equal to the carrying value.
	Investment securities
	The estimated fair value of investment securities is based on quoted market prices or bid quotations received from securities dealers. Other investment securities, including securities that are held for regulatory purposes are carried at cost, less any other than temporary impairment.
	Loans receivable
	The estimated fair value of the loan portfolio is estimated using a discounted cash flow analysis using a discount rate based on interest rates offered at the respective measurement dates for loans with similar terms to borrowers of similar credit quality. The allowance for loan losses is considered a reasonable estimate of any required adjustment to fair value to reflect the impact of credit risk. The estimates of fair value do not incorporate the exit-price concept prescribed by ASC Topic 820 Fair Value Measurements and Disclosures.
	Loans held-for-sale
	Loans held-for-sale are carried at the lower of aggregate cost or estimated fair value. The portfolio consists primarily of fixed rate residential mortgage loans that are sold within 45 days. The estimated fair value is based on quoted market prices for similar loans in the secondary market and are classified as level 2.
	Accrued interest receivable
	Accrued interest receivable has a short-term nature and the estimated fair value is equal to the carrying value.
	Deposits
	The estimated fair value of deposits with no stated maturity, such as non-interest bearing demand deposits, savings, NOW accounts, and money market accounts, is equal to the amount payable on demand. The fair value of interest-bearing time deposits is based on the discounted value of contractual cash flows of such deposits, taking into account the option for early withdrawal. The discount rate is estimated using the rates offered by the Company, at the respective measurement dates, for deposits of similar remaining maturities.
	Derivative assets and liabilities
	Fair values for derivative assets and liabilities are fully described in note 15.
	Securities sold under agreements to repurchase
	The vast majority of the Company’s repurchase agreements are overnight transactions that mature the day after the transaction, and as a result of this short-term nature, the estimated fair value is equal to the carrying value.
	Due to FDIC
	The amount due to FDIC is specified in the purchase agreements and, as it relates to the clawback liability, is discounted to reflect the uncertainty in the timing and payment of the amount due by the Company.
	Warrant liability
	The warrant liability is estimated using a Black-Scholes model, the assumptions of which are detailed in note 18 of our audited consolidated financial statements.
	Accrued interest payable
	Accrued interest payable has a short-term nature and the estimated fair value is equal to the carrying value.

Investment_Securities_Tables

Investment Securities - (Tables)	3 Months Ended
	Mar. 31, 2014
Investments, Debt and Equity Securities [Abstract]	'
Summary of Available-for-Sale Investment Securities	'
	Available-for-sale investment securities are summarized as follows as of the dates indicated (in thousands):
		March 31, 2014
		Amortized		Gross			Gross			Fair value
		cost		unrealized			unrealized
				gains			losses
	Asset backed securities	$	2,066	$	2		$	—		$	2,068
	Mortgage-backed securities (“MBS”):
	Residential mortgage pass-through securities issued or guaranteed by U.S. Government agencies or sponsored enterprises	465,901		8,422			(1,367		)	472,956
	Other residential MBS issued or guaranteed by U.S. Government agencies or sponsored enterprises	1,270,165		11,020			(35,788		)	1,245,397
	Other securities	419		—			—			419
	Total	$	1,738,551	$	19,444		$	(37,155	)	$	1,720,840
		December 31, 2013
		Amortized		Gross			Gross			Fair value
		cost		unrealized			unrealized
				gains			losses
	Asset backed securities	4,534		3			—			4,537
	Mortgage-backed securities (“MBS”):
	Residential mortgage pass-through securities issued or guaranteed by U.S. Government agencies or sponsored enterprises	490,321		7,670			(3,001		)	494,990
	Other residential MBS issued or guaranteed by U.S. Government agencies or sponsored enterprises	1,320,998		10,764			(46,180		)	1,285,582
	Other securities	419		—			—			419
	Total	$	1,816,272	$	18,437		$	(49,181	)	$	1,785,528
Summary of Unrealized Losses	'
	The table below summarizes the unrealized losses as of the dates shown, along with the length of the impairment period (in thousands):
		March 31, 2014
		Less than 12 months					12 months or more						Total
		Fair		Unrealized			Fair			Unrealized			Fair		Unrealized
		value		losses			value			losses			value		losses
	Mortgage-backed securities (“MBS”):
	Residential mortgage pass-through securities issued or guaranteed by U.S. Government agencies or sponsored enterprises	$	252,142	$	(1,366	)	$	11		$	(1	)	$	252,153	$	(1,367	)
	Other residential MBS issued or guaranteed by U.S. Government agencies or sponsored enterprises	601,345		(21,735		)	286,886			(14,053		)	888,231		(35,788		)
	Total	$	853,487	$	(23,101	)	$	286,897		$	(14,054	)	$	1,140,384	$	(37,155	)
		December 31, 2013
		Less than 12 months					12 months or more						Total
		Fair		Unrealized			Fair			Unrealized			Fair		Unrealized
		value		losses			value			losses			value		losses
	Mortgage-backed securities (“MBS”):
	Residential mortgage pass-through securities issued or guaranteed by U.S. Government agencies or sponsored enterprises	$	283,177	$	(3,000	)	$	13		$	(1	)	$	283,190	$	(3,001	)
	Other residential MBS issued or guaranteed by U.S. Government agencies or sponsored enterprises	876,225		(44,101		)	40,740			(2,079		)	916,965		(46,180		)
	Total	$	1,159,402	$	(47,101	)	$	40,753		$	(2,080	)	$	1,200,155	$	(49,181	)
Scheduled Contractual Maturities Of Investment Securities Available For Sale Table [Text Block]	'
	The table below summarizes the contractual maturities, as of the last scheduled repayment date, of the available-for-sale investment portfolio as of March 31, 2014 (in thousands):
		Amortized cost		Fair value
	Due in one year or less	$	—	$	—
	Due after one year through five years	2,074		2,076
	Due after five years through ten years	185,658		185,373
	Due after ten years	1,550,400		1,532,972
	Other securities	419		419
	Total investment securities available-for-sale	$	1,738,551	$	1,720,840
Summary of Held-to-Maturity Investment Securities	'
	Held-to-maturity investment securities are summarized as follows as of the dates indicated (in thousands):
		March 31, 2014
		Amortized		Gross			Gross			Fair value
		cost		unrealized			unrealized
				gains			losses
	Mortgage-backed securities (“MBS”):
	Residential mortgage pass-through securities issued or guaranteed by U.S. Government agencies or sponsored enterprises	$	492,294	$	1,537		$	(862	)	$	492,969
	Other residential MBS issued or guaranteed by U.S. Government agencies or sponsored enterprises	123,927		320			(3,093		)	121,154
	Total investment securities held-to-maturity	$	616,221	$	1,857		$	(3,955	)	$	614,123
		December 31, 2013
		Amortized		Gross			Gross			Fair value
		cost		unrealized			unrealized
				gains			losses
	Mortgage-backed securities (“MBS”):
	Residential mortgage pass-through securities issued or guaranteed by U.S. Government agencies or sponsored enterprises	$	513,090	$	175		$	(1,776	)	$	511,489
	Other residential MBS issued or guaranteed by U.S. Government agencies or sponsored enterprises	128,817		104			-4,005			124,916
	Total investment securities held-to-maturity	$	641,907	$	279		$	(5,781	)	$	636,405
Summary of Contractual Maturities Held-to-Maturity of Investment Portfolio	'
	The table below summarizes the contractual maturities, as of the last scheduled repayment date, of the held-to-maturity investment portfolio at March 31, 2014 (in thousands):
		Amortized cost		Fair value
	Due in one year or less	$	—	$	—
	Due after one year through five years	—		—
	Due after five years through ten years	17,597		17,760
	Due after ten years	598,624		596,363
	Total investment securities held-to-maturity	$	616,221	$	614,123

Loans_Tables

Loans - (Tables)	3 Months Ended
	Mar. 31, 2014
Receivables [Abstract]	'
Loan Portfolio Composition Including Carrying Value by Segment of Loans Accounted for under ASC Topic 310-30 and Loans Covered by the FDIC Loss Sharing Agreements	'
	The carrying value of loans are net of discounts on loans excluded from Accounting Standards Codification (“ASC”) Topic 310-30, and fees and costs of $12.9 million and $13.3 million as of March 31, 2014 and December 31, 2013, respectively (in thousands):
		March 31, 2014
		ASC 310-30			Non 310-30			Total loans		% of
		loans			loans					total
	Commercial	$	52,107		$	530,462		$	582,569	29.7	%
	Commercial real estate	263,608			317,137			580,745		29.6	%
	Agriculture	23,545			131,586			155,131		7.9	%
	Residential real estate	60,467			548,758			609,225		31.1	%
	Consumer	6,819			27,103			33,922		1.7	%
	Total	$	406,546		$	1,555,046		$	1,961,592	100	%
	Covered	$	244,322		$	43,268		$	287,590	14.7	%
	Non-covered	162,224			1,511,778			1,674,002		85.3	%
	Total	$	406,546		$	1,555,046		$	1,961,592	100	%
		December 31, 2013
		ASC 310-30			Non 310-30			Total loans		% of
		loans			loans					total
	Commercial	$	61,511		$	421,984		$	483,495	26.1	%
	Commercial real estate	291,198			283,022			574,220		31	%
	Agriculture	27,000			132,952			159,952		8.6	%
	Residential real estate	63,011			536,913			599,924		32.3	%
	Consumer	8,160			28,343			36,503		2	%
	Total	$	450,880		$	1,403,214		$	1,854,094	100	%
	Covered	$	259,364		$	50,033		$	309,397	16.7	%
	Non-covered	191,516			1,353,181			1,544,697		83.3	%
	Total	$	450,880		$	1,403,214		$	1,854,094	100	%
Loan Delinquency	'
	Loan delinquency for all loans is shown in the following tables at March 31, 2014 and December 31, 2013, respectively (in thousands):
		Total Loans March 31, 2014
		30-59			60-89			Greater		Total  past		Current		Total		Loans > 90		Non-
		days  past			days			than 90		due				loans		days past		accrual
		due			past			days past								due and
					due			due								still
																accruing
	Loans excluded from ASC 310-30
	Commercial	$	1,210		$	1,020		$	282	$	2,512	$	527,950	$	530,462	$	25	$	992
	Commercial real estate
	Construction	—			—			—		—		4,957		4,957		—		—
	Acquisition/development	44			—			—		44		8,225		8,269		—		—
	Multifamily	99			—			—		99		10,294		10,393		—		1,059
	Owner-occupied	255			387			52		694		109,089		109,783		—		956
	Non owner-occupied	113			38			203		354		183,381		183,735		—		203
	Total commercial real estate	511			425			255		1,191		315,946		317,137		—		2,218
	Agriculture	80			—			365		445		131,141		131,586		—		539
	Residential real estate
	Senior lien	1,401			533			750		2,684		494,576		497,260		—		5,283
	Junior lien	65			17			46		128		51,370		51,498		—		482
	Total residential real estate	1,466			550			796		2,812		545,946		548,758		—		5,765
	Consumer	764			11			29		804		26,299		27,103		28		224
	Total loans excluded from ASC 310-30	$	4,031		$	2,006		$	1,727	$	7,764	$	1,547,282	$	1,555,046	$	53	$	9,738
	Covered loans excluded from ASC 310-30	$	174		$	52		$	351	$	577	$	42,691	$	43,268	$	—	$	2,175
	Non-covered loans excluded from ASC 310-30	3,857			1,954			1,376		7,187		1,504,591		1,511,778		53		7,563
	Total loans excluded from ASC 310-30	$	4,031		$	2,006		$	1,727	$	7,764	$	1,547,282	$	1,555,046	$	53	$	9,738
	Loans accounted for under ASC 310-30
	Commercial	$	15,819		$	538		$	4,372	$	20,729	$	31,378	$	52,107	$	4,372	$	—
	Commercial real estate	4,425			2,636			41,218		48,279		215,329		263,608		41,219		—
	Agriculture	43			—			51		94		23,451		23,545		51		—
	Residential real estate	1,997			242			1,968		4,207		56,260		60,467		1,968		—
	Consumer	166			7			179		352		6,467		6,819		179		—
	Total loans accounted for under ASC 310-30	$	22,450		$	3,423		$	47,788	$	73,661	$	332,885	$	406,546	$	47,789	—
	Covered loans accounted for under ASC 310-30	$	18,589		$	2,501		$	37,198	$	58,288	$	186,034	$	244,322	$	37,199	$	—
	Non-covered loans accounted for under ASC 310-30	3,861			922			10,590		15,373		146,851		162,224		10,590		—
	Total loans accounted for under ASC 310-30	$	22,450		$	3,423		$	47,788	$	73,661	$	332,885	$	406,546	$	47,789	$	—
	Total loans	$	26,481		$	5,429		$	49,515	$	81,425	$	1,880,167	$	1,961,592	$	47,842	$	9,738
	Covered loans	$	18,763		$	2,553		$	37,549	$	58,865	$	228,725	$	287,590	$	37,199	$	2,175
	Non-covered loans	7,718			2,876			11,966		22,560		1,651,442		1,674,002		10,643		7,563
	Total loans	$	26,481		$	5,429		$	49,515	$	81,425	$	1,880,167	$	1,961,592	$	47,842	$	9,738
		Total Loans December 31, 2013
		30-59			60-89			Greater		Total  past		Current		Total		Loans > 90		Non-
		days  past			days			than 90		due				loans		days past		accrual
		due			past			days past								due and
					due			due								still
																accruing
	Loans excluded from ASC 310-30
	Commercial	$	897		$	156		$	555	$	1,608	$	420,376	$	421,984	$	115	$	1,280
	Commercial real estate
	Construction	316			—			—		316		5,023		5,339		—		—
	Acquisition/development	45			—			—		45		7,975		8,020		—		1
	Multifamily	1,003			—			—		1,003		9,681		10,684		—		1,096
	Owner-occupied	52			7			21		80		93,367		93,447		—		692
	Non owner-occupied	329			—			203		532		165,000		165,532		—		203
	Total commercial real estate	1,745			7			224		1,976		281,046		283,022		—		1,992
	Agriculture	188			7			—		195		132,757		132,952		—		153
	Residential real estate
	Senior lien	733			415			1,062		2,210		482,381		484,591		—		5,326
	Junior lien	204			—			80		284		52,038		52,322		—		519
	Total residential real estate	937			415			1,142		2,494		534,419		536,913		—		5,845
	Consumer	191			21			23		235		28,108		28,343		14		247
	Total loans excluded from ASC 310-30	$	3,958		$	606		$	1,944	$	6,508	$	1,396,706	$	1,403,214	$	129	$	9,517
	Covered loans excluded from ASC 310-30	194			60			155		409		49,624		50,033		115		1,944
Non-covered loans excluded from ASC 310-30	3,764			546			1,789		6,099		1,347,082		1,353,181		14		7,573
Total loans excluded from ASC 310-30	$	3,958		$	606		$	1,944	$	6,508	$	1,396,706	$	1,403,214	$	129	$	9,517
Loans accounted for under ASC 310-30
Commercial	$	582		$	322		$	4,505	$	5,409	$	56,102	$	61,511	$	4,505	$	14,827
Commercial real estate	1,902			5,179			49,228		56,309		234,889		291,198		49,227		—
Agriculture	714			—			296		1,010		25,990		27,000		296		—
Residential real estate	977			977			1,817		3,771		59,240		63,011		1,817		—
Consumer	327			265			19		611		7,549		8,160		19		—
Total loans accounted for under ASC 310-30	$	4,502		$	6,743		$	55,865	$	67,110	$	383,770	$	450,880	$	55,864	$	14,827
Covered loans accounted for under ASC 310-30	$	1,471		$	4,949		$	42,356	$	48,776	$	210,588	$	259,364	$	42,355	$	14,827
Non-covered loans accounted for under ASC 310-30	3,031			1,794			13,509		18,334		173,182		191,516		13,509		—
Total loans accounted for under ASC 310-30	$	4,502		$	6,743		$	55,865	$	67,110	$	383,770	$	450,880	$	55,864	$	14,827
Total loans	$	8,460		$	7,349		$	57,809	$	73,618	$	1,780,476	$	1,854,094	$	55,993	$	24,344
Covered loans	$	1,665		$	5,009		$	42,511	$	49,185	$	260,212	$	309,397	$	42,470	$	16,771
Non-covered loans	6,795			2,340			15,298		24,433		1,520,264		1,544,697		13,523		7,573
Total loans	$	8,460		$	7,349		$	57,809	$	73,618	$	1,780,476	$	1,854,094	$	55,993	$	24,344
Credit Exposure for Loans as Determined by Company's Internal Risk Rating System	'
	Credit exposure for all loans as determined by the Company’s internal risk rating system was as follows as of March 31, 2014 and December 31, 2013, respectively (in thousands):
		Total Loans March 31, 2014
		Pass			Special			Substandard		Doubtful		Total
					mention
	Loans excluded from ASC 310-30
	Commercial	$	489,203		$	5,394		$	35,681	$	184	$	530,462
	Commercial real estate
	Construction	4,957			—			—		—		4,957
	Acquisition/development	1,558			2,248			4,463		—		8,269
	Multifamily	9,334			—			1,034		25		10,393
	Owner-occupied	104,127			166			5,490		—		109,783
	Non owner-occupied	161,381			18,140			4,214		—		183,735
	Total commercial real estate	281,357			20,554			15,201		25		317,137
	Agriculture	121,436			331			9,819		—		131,586
	Residential real estate
	Senior lien	488,132			1,223			7,497		408		497,260
	Junior lien	49,119			197			2,182		—		51,498
	Total residential real estate	537,251			1,420			9,679		408		548,758
	Consumer	26,876			—			227		—		27,103
	Total loans excluded from ASC 310-30	$	1,456,123		$	27,699		$	70,607	$	617	$	1,555,046
	Covered loans excluded from ASC 310-30	$	16,698		$	2,920		$	23,177	$	473	$	43,268
	Non-covered loans excluded from ASC 310-30	1,439,425			24,779			47,430		144		1,511,778
	Total loans excluded from ASC 310-30	$	1,456,123		$	27,699		$	70,607	$	617	$	1,555,046
	Loans accounted for under ASC 310-30
	Commercial	$	14,576		$	3,732		$	33,101	$	698	$	52,107
	Commercial real estate	109,069			6,712			142,766		5,061		263,608
	Agriculture	20,297			661			2,587		—		23,545
	Residential real estate	42,810			916			16,741		—		60,467
	Consumer	5,818			216			785		—		6,819
	Total loans accounted for under ASC 310-30	$	192,570		$	12,237		$	195,980	$	5,759	$	406,546
	Covered loans accounted for under ASC 310-30	$	89,706		$	6,072		$	142,785	$	5,759	$	244,322
	Non-covered loans accounted for under ASC 310-30	102,864			6,165			53,195		—		162,224
	Total loans accounted for under ASC 310-30	$	192,570		$	12,237		$	195,980	$	5,759	$	406,546
	Total loans	$	1,648,693		$	39,936		$	266,587	$	6,376	$	1,961,592
	Total covered	$	106,404		$	8,992		$	165,962	$	6,232	$	287,590
	Total non-covered	1,542,289			30,944			100,625		144		1,674,002
	Total loans	$	1,648,693		$	39,936		$	266,587	$	6,376	$	1,961,592
		Total Loans December 31, 2013
		Pass			Special			Substandard		Doubtful		Total
					mention
	Loans excluded from ASC 310-30
	Commercial	$	374,281		$	9,882		$	37,414	$	407	$	421,984
	Commercial real estate
	Construction	5,339			—			—		—		5,339
	Acquisition/development	1,366			2,247			4,407		—		8,020
	Multifamily	9,588			—			1,068		28		10,684
	Owner-occupied	87,984			169			5,294		—		93,447
	Non owner-occupied	142,159			18,536			4,837		—		165,532
	Total commercial real estate	246,436			20,952			15,606		28		283,022
	Agriculture	123,216			9,049			687		—		132,952
	Residential real estate
	Senior lien	475,041			1,495			7,620		435		484,591
	Junior lien	49,874			200			2,248		—		52,322
	Total residential real estate	524,915			1,695			9,868		435		536,913
	Consumer	28,092			—			251		—		28,343
	Total loans excluded from ASC 310-30	$	1,296,940		$	41,578		$	63,826	$	870	$	1,403,214
	Covered loans excluded from ASC 310-30	$	22,175		$	3,439		$	24,005	$	414	$	50,033
	Non-covered loans excluded from ASC 310-30	1,274,765			38,139			39,821		456		1,353,181
	Total loans excluded from ASC 310-30	$	1,296,940		$	41,578		$	63,826	$	870	$	1,403,214
	Loans accounted for under ASC 310-30
	Commercial	$	23,129		$	3,221		$	34,440	$	721	$	61,511
	Commercial real estate	115,903			12,493			157,748		5,054		291,198
	Agriculture	21,900			1,117			3,983		—		27,000
Residential real estate	43,904			1,098			18,009		—		63,011
Consumer	6,921			244			995		—		8,160
Total loans accounted for under ASC 310-30	$	211,757		$	18,173		$	215,175	$	5,775	$	450,880
Covered loans accounted for under ASC 310-30	$	100,050		$	8,498		$	145,041	$	5,775	$	259,364
Non-covered loans accounted for under ASC 310-30	111,707			9,675			70,134		—		191,516
Total loans accounted for under ASC 310-30	$	211,757		$	18,173		$	215,175	$	5,775	$	450,880
Total loans	$	1,508,697		$	59,751		$	279,001	$	6,645	$	1,854,094
Total covered	$	122,225		$	11,937		$	169,046	$	6,189	$	309,397
Total non-covered	1,386,472			47,814			109,955		456		1,544,697
Total loans	$	1,508,697		$	59,751		$	279,001	$	6,645	$	1,854,094
Schedule Of Impaired Financing Receivable With And Without Related Allowance	'
	Additional information regarding impaired loans at March 31, 2014 and December 31, 2013 is set forth in the table below (in thousands):
		Impaired Loans
		March 31, 2014								December 31, 2013
		Unpaid			Recorded			Allowance		Unpaid		Recorded		Allowance
		principal			investment			for loan		principal		investment		for loan
		balance						losses		balance				losses
								allocated						allocated
	With no related allowance recorded:
	Commercial	$	7,024		$	7,015		$	—	$	4,981	$	4,981	$	—
	Commercial real estate
	Construction	—			—			—		—		—		—
	Acquisition/development	398			398			—		—		—		—
	Multifamily	972			898			—		987		929		—
	Owner-occupied	1,826			1,606			—		1,872		1,655		—
	Non-owner occupied	548			475			—		561		488		—
	Total commercial real estate	3,744			3,377			—		3,420		3,072		—
	Agriculture	9,143			9,132			—		—		—		—
	Residential real estate
	Senior lien	720			700			—		506		494		—
	Junior lien	—			—			—		—		—		—
	Total residential real estate	720			700			—		506		494		—
	Consumer	—			—			—		—		—		—
	Total impaired loans with no related allowance recorded	$	20,631		$	20,224		$	—	$	8,907	$	8,547	$	—
	With a related allowance recorded:
	Commercial	$	2,545		$	2,046		$	190	$	2,529	$	2,379	$	416
	Commercial real estate
	Construction	—			—			—		—		—		—
	Acquisition/development	—			—			—		—		1		—
	Multifamily	173			162			25		178		168		28
	Owner-occupied	1,109			873			5		825		607		4
	Non-owner occupied	634			623			2		640		628		4
	Total commercial real estate	1,916			1,658			32		1,643		1,404		36
	Agriculture	194			174			1		191		173		1
	Residential real estate
	Senior lien	8,136			7,197			438		8,147		7,266		474
	Junior lien	1,769			1,555			15		1,815		1,605		16
	Total residential real estate	9,905			8,752			453		9,962		8,871		490
	Consumer	270			249			3		290		273		3
	Total impaired loans with a related allowance recorded	$	14,830		$	12,879		$	679	$	14,615	$	13,100	$	946
	Total impaired loans	$	35,461		$	33,103		$	679	$	23,522	$	21,647	$	946
Schedule of Impaired Financing Receivable, Average Recorded Investment and Interest Income Recognized	'
	The table below shows additional information regarding the average recorded investment and interest income recognized on impaired loans for the periods presented (in thousands):
		For the three months ended
		31-Mar-14						31-Mar-13
		Average recorded investment			Interest income recognized			Average recorded investment		Interest income recognized
	With no related allowance recorded:
	Commercial	$	7,562		$	94		$	11,033	$	128
	Commercial real estate
	Construction	—			—			—		—
	Acquisition/development	398			5			—		—
	Multifamily	908			—			—		—
	Owner-occupied	1,622			26			5,036		80
	Non owner-occupied	480			8			1,862		5
	Total commercial real estate	3,408			39			6,898		85
	Agriculture	9,132			119			—		—
	Residential real estate
	Senior lien	701			4			364		1
	Junior lien	—			—			—		—
	Total residential real estate	701			4			364		1
	Consumer	—			—			—		—
	Total impaired loans with no related allowance recorded	$	20,803		$	256		$	18,295	$	214
	With a related allowance recorded:
	Commercial	$	2,113		$	12		$	3,172	$	3
	Commercial real estate
	Construction	—			—			—		—
	Acquisition/development	—			—			15		—
	Multifamily	165			—			196		—
	Owner-occupied	879			3			763		4
	Non owner-occupied	625			7			6,544		3
	Total commercial real estate	1,669			10			7,518		7
	Agriculture	177			—			240		—
	Residential real estate
	Senior lien	7,243			27			6,791		21
	Junior lien	1,566			15			1,096		11
	Total residential real estate	8,809			42			7,887		32
	Consumer	250			—			479		4
	Total impaired loans with a related allowance recorded	$	13,018		$	64		$	19,296	$	46
	Total impaired loans	$	33,821		$	320		$	37,591	$	260
Additional Information Related to Accruing TDR's	'
	The table below provides additional information related to accruing TDRs at March 31, 2014 and December 31, 2013 (in thousands):
		Accruing TDRs
		31-Mar-14
		Recorded			Average			Unpaid		Unfunded
		investment			year-to-			principal		commitments
					date			balance		to fund
					recorded					TDRs
					investment
	Commercial	$	8,069		$	8,631		$	8,082	$	—
	Commercial real estate	2,818			2,839			3,075		—
	Agriculture	8,767			8,767			8,778		105
	Residential real estate	2,841			2,856			2,869		12
	Consumer	25			25			25		—
	Total	$	22,520		$	23,118		$	22,829	$	117
		Accruing TDRs
		December 31, 2013
		Recorded			Average			Unpaid		Unfunded
		investment			year-to-			principal		commitments
					date			balance		to fund
					recorded					TDRs
					investment
	Commercial	$	6,079		$	7,113		$	6,084	$	144
	Commercial real estate	2,484			2,759			2,743		—
	Agriculture	20			20			20		—
	Residential real estate	2,995			3,055			3,023		12
	Consumer	27			30			27		12
	Total	$	11,605		$	12,977		$	11,897	$	168
Summary of Company's Carrying Value of Non-Accrual TDR's	'
	The following table summarizes the Company’s carrying value of non-accrual TDRs as of March 31, 2014 and December 31, 2013 (in thousands):
		Non - Accruing TDRs
		March 31, 2014						December 31, 2013
		Covered			Non-covered			Covered		Non-covered
	Commercial	$	30		$	497		$	—	$	535
	Commercial real estate	283			92			296		98
	Agriculture	—			18			—		—
	Residential real estate	1,349			1,105			1,377		1,031
	Consumer	—			224			—		237
	Total	$	1,662		$	1,936		$	1,673	$	1,901
Re-Measurement of Loans Accounted for Under ASC Topic 310-30 Resulting in Changes in Carrying Amount of Accretable Yield	'
	The re-measurement of loans accounted for under ASC 310-30 resulted in the following changes in the carrying amount of accretable yield during the three months ended March 31, 2014 and 2013 (in thousands):
		March 31,			March 31,
		2014			2013
	Accretable yield beginning balance	$	130,624		$	133,585
	Reclassification from non-accretable difference	6,164			16,134
	Reclassification to non-accretable difference	(590		)	(1,202		)
	Accretion	(16,900		)	(21,302		)
	Accretable yield ending balance	$	119,298		$	127,215
Composition of Net Book Value for Loans Accounted for under ASC Topic 310-30	'
	Below is the composition of the net book value for loans accounted for under ASC 310-30 at March 31, 2014 and December 31, 2013 (in thousands):
		March 31,			December 31,
		2014			2013
	Contractual cash flows	$	922,774		$	984,019
	Non-accretable difference	(396,930		)	(402,515		)
	Accretable yield	(119,298		)	(130,624		)
	Loans accounted for under ASC 310-30	$	406,546		$	450,880

Allowance_for_Loan_Losses_Tabl

Allowance for Loan Losses - (Tables)	3 Months Ended
	Mar. 31, 2014
Text Block [Abstract]	'
Summary of Company's Allowance for Loan Losses ("ALL") and Recorded Investment in Loans	'
	The tables below detail the Company’s allowance for loan losses (“ALL”) and recorded investment in loans as of and for the three months ended March 31, 2014 and 2013 (in thousands):
		Three months ended March 31, 2014
		Commercial			Commercial			Agriculture			Residential			Consumer			Total
					real estate						real estate
	Beginning balance	$	4,258		$	2,276		$	1,237		$	4,259		$	491		$	12,521
	Non 310-30 beginning balance	4,029			1,984			572			4,165			491			11,241
	Charge-offs	(386		)	—			—			(20		)	(171		)	(577		)
	Recoveries	58			37			—			90			76			261
	Provision (reversal)	1,880			(44		)	(24		)	(66		)	77			1,823
	Non 310-30 ending balance	5,581			1,977			548			4,169			473			12,748
	ASC 310-30 beginning balance	229			292			665			94			—			1,280
	Charge-offs	(2		)	—			—			—			—			(2		)
	Recoveries	—			—			—			—			—			—
	Provision (reversal)	(84		)	(56		)	—			(29		)	115			(54		)
	ASC 310-30 ending balance	143			236			665			65			115			1,224
	Ending balance	$	5,724		$	2,213		$	1,213		$	4,234		$	588		$	13,972
	Ending allowance balance attributable to:
	Non 310-30 loans individually evaluated for impairment	$	190		$	32		$	1		$	453		$	3		$	679
	Non 310-30 loans collectively evaluated for impairment	5,391			1,945			547			3,716			470			12,069
	ASC 310-30 loans	143			236			665			65			115			1,224
	Total ending allowance balance	$	5,724		$	2,213		$	1,213		$	4,234		$	588		$	13,972
	Loans:
	Non 310-30 individually evaluated for impairment	$	9,061		$	5,035		$	9,306		$	9,452		$	249		$	33,103
	Non 310-30 collectively evaluated for impairment	521,401			312,102			122,280			539,306			26,854			1,521,943
	ASC 310-30 loans	52,107			263,608			23,545			60,467			6,819			406,546
	Total loans	$	582,569		$	580,745		$	155,131		$	609,225		$	33,922		$	1,961,592
		Three months ended March 31, 2013
		Commercial			Commercial			Agriculture			Residential			Consumer			Total
					real estate						real estate
	Beginning balance	$	2,798		$	7,396		$	592		$	4,011		$	583		$	15,380
	Non 310-30 beginning balance	2,798			3,056			323			4,011			540			10,728
	Charge-offs	(629		)	(259		)	—			(75		)	(233		)	(1,196		)
	Recoveries	9			—			—			14			77			100
	Provision (reversal)	697			(305		)	201			406			109			1,108
	Non 310-30 ending balance	2,875			2,492			524			4,356			493			10,740
	ASC 310-30 beginning balance	—			4,340			269			—			43			4,652
	Charge-offs	—			(2,812		)	—			—			—			(2,812		)
	Recoveries	—			—			—			—			—			—
	Provision (reversal)	411			(1,045		)	—			986			(43		)	309
	ASC 310-30 ending balance	411			483			269			986			—			2,149
	Ending balance	$	3,286		$	2,975		$	793		$	5,342		$	493		$	12,889
	Ending allowance balance attributable to:
	Non 310-30 loans individually evaluated for impairment	$	1,125		$	371		$	1		$	721		$	13		$	2,231
	Non 310-30 loans collectively evaluated for impairment	1,750			2,121			523			3,635			480			8,509
	ASC 310-30 loans	411			483			269			986			—			2,149
	Total ending allowance balance	$	3,286		$	2,975		$	793		$	5,342		$	493		$	12,889
	Loans:
	Non 310-30 individually evaluated for impairment	$	13,381		$	14,314		$	227		$	8,214		$	469		$	36,605
	Non 310-30 collectively evaluated for impairment	172,421			241,818			117,930			437,971			28,456			998,596
	ASC 310-30 loans	78,928			490,608			46,580			101,386			12,747			730,249
	Total loans	$	264,730		$	746,740		$	164,737		$	547,571		$	41,672		$	1,765,450

FDIC_Indemnification_Asset_Tab

FDIC Indemnification Asset - (Tables)	3 Months Ended
	Mar. 31, 2014
Investments, Debt and Equity Securities [Abstract]	'
Summary of Activity Related to FDIC Indemnification Asset	'
	Below is a summary of the activity related to the FDIC indemnification asset during the three months ended March 31, 2014 and 2013 (in thousands):
		For the three months ended
		March 31,			March 31,
		2014			2013
	Balance at beginning of period	$	64,447		$	86,923
	Amortization	(7,608		)	(4,669		)
	FDIC portion of (recoveries) charge-offs exceeding fair value marks	(133		)	2,576
	Reduction for claims filed	(29		)	(9,132		)
	Balance at end of period	$	56,677		$	75,698

Other_Real_Estate_Owned_Tables

Other Real Estate Owned - (Tables)	3 Months Ended
	Mar. 31, 2014
Banking and Thrift [Abstract]	'
Summary of Activity in OREO Balances	'
	A summary of the activity in the OREO balances during the three months ended March 31, 2014 and 2013 is as follows (in thousands):
		For the three months ended March 31,
		2014			2013
	Beginning balance	$	70,125		$	94,808
	Transfers from loan portfolio, at fair value	236			17,043
	Impairments	(822		)	(4,600		)
	Sales	(4,143		)	(25,726		)
	Gain on sale of OREO, net	587			1,805
	Ending balance	$	65,983		$	83,330

Regulatory_Capital_Tables

Regulatory Capital - (Tables)	3 Months Ended
	Mar. 31, 2014
Banking and Thrift [Abstract]	'
Capital Ratio Requirements under Prompt Corrective Action or Other Regulatory Requirements	'
	At March 31, 2014 and December 31, 2013, NBH Bank, N.A. and the consolidated holding company exceeded all capital ratio requirements under prompt corrective action or other regulatory requirements, as is detailed in the table below (in thousands):
		March 31, 2014
		Actual				Required to be				Required to be
						considered well				considered
						capitalized (1)				adequately
										capitalized
		Ratio		Amount		Ratio		Amount		Ratio		Amount
	Tier 1 leverage ratio
	Consolidated	16.8	%	$	814,857	N/A		N/A		4	%	$	193,915
	NBH Bank, N.A.	11.6	%	560,025		10	%	$	482,407	4	%	192,963
	Tier 1 risk-based capital ratio (2)
	Consolidated	36.8	%	$	814,857	6	%	$	132,791	4	%	$	88,528
	NBH Bank, N.A.	25.5	%	560,025		11	%	241,156		4	%	87,693
	Total risk-based capital ratio (2)
	Consolidated	37.5	%	$	829,230	10	%	$	221,319	8	%	$	177,055
	NBH Bank, N.A.	26.2	%	574,398		12	%	263,079		8	%	175,386
		December 31, 2013
		Actual				Required to be				Required to be
						considered well				considered
						capitalized (1)				adequately
										capitalized
		Ratio		Amount		Ratio		Amount		Ratio		Amount
	Tier 1 leverage ratio
	Consolidated	16.6	%	$	822,688	N/A		N/A		4	%	$	197,906
	NBH Bank, N.A.	11.3	%	556,876		10	%	$	491,294	4	%	196,518
	Tier 1 risk-based capital ratio (2)
	Consolidated	38.9	%	$	822,688	6	%	$	126,865	4	%	$	84,577
	NBH Bank, N.A.	26.6	%	556,876		11	%	230,334		4	%	83,758
	Total risk-based capital ratio (2)
	Consolidated	39.5	%	$	835,810	10	%	$	211,442	8	%	$	169,153
	NBH Bank, N.A.	27.2	%	569,998		12	%	251,273		8	%	167,515
	-1	These ratio requirements are reflective of the agreements the Company has made with its various regulators in connection with the approval of the de novo charter for NBH Bank, N.A.
	-2	Due to the conditional guarantee represented by the loss sharing agreements, the FDIC indemnification asset and covered assets are risk-weighted at 20% for purposes of risk-based capital computations.

FDIC_Loss_Sharing_Income_Table

FDIC Loss Sharing Income - (Tables)	3 Months Ended
	Mar. 31, 2014
Text Block [Abstract]	'
Schedule of Additional Details of Company's FDIC Loss Sharing Income	'
	The table below provides additional details of the Company’s FDIC loss sharing income (expense) during the three months ended March 31, 2014 and 2013 (in thousands):
		For the three months ended
		March 31, 2014			March 31, 2013
	Clawback liability amortization	$	(328	)	$	(313	)
	Clawback liability remeasurement	(516		)	573
	Reimbursement to FDIC for gain on sale of and income from covered OREO	(918		)	(860		)
	Reimbursement to FDIC for recoveries	(85		)	(15		)
	FDIC reimbursement of covered asset resolution costs	890			3,891
	Total	$	(957	)	$	3,276

Stockbased_Compensation_and_Em1

Stock-based Compensation and Employee Benefits - (Tables)	3 Months Ended
	Mar. 31, 2014
Text Block [Abstract]	'
Summary of Option Activity	'
	The following table summarizes stock option activity for the three months ended March 31, 2014:
		Options		Weighted		Weighted	Aggregate
				Average		Average	Intrinsic
				Exercise		Remaining	Value
				Price		Contractual
						Term in
						Years
	Outstanding at December 31, 2013	3,515,486		$	19.92	6.13	$	5,183,567
	Granted	—		—
	Forfeited	—		—
	Surrendered	(9,705	)	20
	Exercised	(295	)	20
	Expired	(2,083	)	20
	Outstanding at March 31, 2014	3,503,403		$	19.92	5.91	$	520,681
	Options fully vested and exercisable at March 31, 2014	2,887,166		$	20	5.76	$	202,102
	Options expected to vest	573,660		$	19.62	6.34	$	459,678
Summary of Restricted Stock Activity	'
	The following table summarizes restricted stock activity for the three months ended March 31, 2014:
		Total Restricted Shares		Weighted Average Grant-Date Fair Value
	Unvested at December 31, 2013	1,064,460		15.16
	Vested	(22,542	)	19.94
	Granted	—		—
	Forfeited	(10,000	)	13.14
	Surrendered	(10,791	)	19.94
	Unvested at March 31, 2014	1,021,127		15.02

Warrants_Tables

Warrants (Tables)	3 Months Ended
	Mar. 31, 2014
Warrants and Rights Note Disclosure [Abstract]	'
Schedule of Fair Value of Warrants Estimated Using Black-Scholes Option Pricing Model	'
	The fair value of the warrants was estimated using a Black-Scholes option pricing model utilizing the following assumptions at the indicated dates:
		March 31, 2014		December 31, 2013
	Risk-free interest rate	1.99	%	2.16	%
	Expected volatility	34.04	%	33.8	%
	Expected term (years)	6-May		7-Jun
	Dividend yield	1	%	0.93	%

Income_Per_Share_Tables

Income Per Share - (Tables)	3 Months Ended
	Mar. 31, 2014
Earnings Per Share [Abstract]	'
Schedule of Computation of Basic and Diluted Income Per Share	'
	The following table illustrates the computation of basic and diluted income per share for the three months ended March 31, 2014 and 2013 (in thousands, except share and earnings per share information):
		For the three months ended
		March 31,			March 31,
		2014			2013
	Distributed earnings	$	2,276		$	2,663
	Undistributed earnings (distributions in excess of earnings)	(845		)	(581		)
	Net income	$	1,431		$	2,082
	Less: earnings allocated to participating securities	(5		)	—
	Earnings allocated to common shareholders	$	1,426		$	2,082
	Weighted average shares outstanding for basic earnings per common share	44,819,644			52,320,622
	Dilutive effect of equity awards	35,827			25,903
	Dilutive effect of warrants	7,667			—
	Weighted average shares outstanding for diluted earnings per common share	44,863,138			52,346,525
	Basic earnings per share	$	0.03		$	0.04
	Diluted earnings per share	$	0.03		$	0.04

Derivatives_Tables

Derivatives - (Tables)	3 Months Ended
	Mar. 31, 2014
Derivative Instruments and Hedging Activities Disclosure [Abstract]	'
Schedule of Derivative Instruments in Statement of Financial Position, Fair Value	'
	Information about the valuation methods used to measure fair value is provided in note 15.
				Asset Derivatives									Liability Derivatives
				Fair Value									Fair Value
		Balance Sheet Location		March 31, 2014				December 31, 2013			Balance Sheet Location		March 31, 2014			December 31, 2013
	Derivatives designated as hedging instruments
	Interest rate products	Other assets		$	1			$	129		Other liabilities		$	485		$	—
	Total derivatives designated as hedging instruments			$	1			$	129				$	485		$	—
	Derivatives not designated as hedging instruments
	Interest rate products	Other assets		$	204			$	73		Other liabilities		$	219		$	74
	Total derivatives not designated as hedging instruments			$	204			$	73				$	219		$	74
Derivative Instruments, Gain (Loss)	'
	The tables below present the effect of the Company’s derivative financial instruments on the consolidated statement of operations for the three months ended March 31, 2014 and 2013 (in thousands).
	Derivatives in fair value hedging relationships		Location of gain or (loss) recognized in income on derivative		Amount of gain or (loss) recognized in income on derivative							Amount of gain or (loss) recognized in income on hedged item
					For the three months ended March 31,							For the three months ended March 31,
					2014				2013			2014			2013
	Interest rate products		Interest income		$	(614	)		$	—		$	541		$	—
	Total				$	(614	)		$	—		$	541		$	—
					Amount of gain or (loss) recognized in income on derivative
					For the three months ended March 31,
	Derivatives not designated as hedging instruments		Location of gain or (loss) recognized in income on derivative		2014				2013
	Interest rate products		Other non-interest income		$	(14	)		—
	Total				$	(14	)		—

Fair_Value_Measurements_Tables

Fair Value Measurements - (Tables)	3 Months Ended
	Mar. 31, 2014
Fair Value Disclosures [Abstract]	'
Tables of Financial Instruments Measured At Fair Value on Recurring Basis	'
	The tables below present the financial instruments measured at fair value on a recurring basis as of March 31, 2014 and December 31, 2013 on the consolidated statements of financial condition utilizing the hierarchy structure described above (in thousands):
		March 31, 2014
		Level 1			Level 2			Level 3		Total
	Assets:
	Investment securities available-for-sale:
	Asset backed securities	$	—		$	2,068		$	—	$	2,068
	Mortgage-backed securities (“MBS”):
	Residential mortgage pass-through securities issued or guaranteed by U.S. Government agencies or sponsored enterprises	—			472,956			—		472,956
	Other residential MBS issued or guaranteed by U.S. Government agencies or sponsored enterprises	—			1,245,397			—		1,245,397
	Other securities	—			—			419		419
	Derivatives	—			205			—		205
	Total assets at fair value	$	—		$	1,720,626		$	419	$	1,721,045
	Liabilities:
	Warrant liability	$	—		$	—		$	5,383	$	5,383
	Clawback liability	—			—			33,309		33,309
	Derivatives	—			704			—		704
	Total liabilities at fair value	$	—		$	704		$	38,692	$	39,396
		December 31, 2013
		Level 1			Level 2			Level 3		Total
	Assets:
	Investment securities available-for-sale:
	Asset backed securities	$	—		$	4,537		$	—	$	4,537
	Mortgage-backed securities (“MBS”):
	Residential mortgage pass-through securities issued or guaranteed by U.S. Government agencies or sponsored enterprises	—			494,990			—		494,990
	Other residential MBS issued or guaranteed by U.S. Government agencies or sponsored enterprises	—			1,285,582			—		1,285,582
	Other securities	—			—			419		419
	Derivatives	—			202			—		202
	Total assets at fair value	$	—		$	1,785,311		$	419	$	1,785,730
	Liabilities:
	Warrant liability	$	—		$	—		$	6,281	$	6,281
	Clawback liability	—			—			32,465		32,465
	Derivatives	—			74					74
	Total liabilities at fair value	$	—		$	74		$	38,746	$	38,820
Table of Changes in Level 3 Financial Instruments	'
	The table below details the changes in level 3 financial instruments during the three months ended March 31, 2014 and March 31, 2013 (in thousands):
		Warrant			Clawback
		liability			liability
	Balance at December 31, 2012	$	5,461		$	31,271
	Change in value	(627		)	(573		)
	Amortization	—			313
	Net change in level 3	$	(627	)	$	(260	)
	Balance at March 31, 2013	$	4,834		$	31,011
	Balance at December 31, 2013	$	6,281		$	32,465
	Change in value	(898		)	516
	Amortization	—			328
	Settlement	—			—
	Net change in Level 3	(898		)	844
	Balance at March 31, 2014	$	5,383		$	33,309
Inputs Used to Determine Fair Values of Oreo are Considered Level 3 Inputs in Fair Value Hierarchy	'
	The table below provides information regarding the assets recorded at fair value on a non-recurring basis during the three months ended March 31, 2014 (in thousands):
		March 31, 2014
		Level 1			Level 2			Level 3		Total		Losses from fair value changes
	Other real estate owned	$	—		$	—		$	65,983	$	65,983	$	822
	Impaired loans	$	—		$	—		$	33,103	$	33,103	$	465
		31-Mar-13
		Level 1			Level 2			Level 3		Total		Losses from fair value changes
	Other real estate owned	$	—		$	—		$	83,330	$	83,330	$	4,526
	Impaired loans	$	—		$	—		$	36,605	$	36,605	$	4,911
Table of Valuation Techniques and Unobservable Inputs Used in Valuation of Financial Instruments Falling Within Level 3 of Fair Value Hierarchy	'
	The following table provides information about the valuation techniques and unobservable inputs used in the valuation of financial instruments falling within level 3 of the fair value hierarchy as of March 31, 2014. The table below excludes non-recurring fair value measurements of collateral value used for impairment measures for OREO. These valuations utilize third party appraisal or broker price opinions, and are classified as level 3 due to the significant judgment involved (in thousands):
		Fair value at			Valuation Technique		Unobservable Input	Quantitative
		March 31,						Measures
		2014
	Other securities	$	419		Cash investment in private equity fund		Cash investment
	Impaired loans	33,103			Appraised value		Appraised values
							Discount rate	0-25%
	Clawback liability	33,309			Contractually defined discounted cash flows		Intrinsic loss estimates	$323.3 million -
								$405 million
							Expected credit losses	—
							Discount rate	4%
	Warrant liability	5,383			Black-Scholes		Volatility	19%-47%

Fair_Value_of_Financial_Instru1

Fair Value of Financial Instruments - (Tables)	3 Months Ended
	Mar. 31, 2014
Fair Value Disclosures [Abstract]	'
Fair Value of Financial Instruments	'
			31-Mar-14				31-Dec-13
		Level in fair	Carrying		Estimated		Carrying		Estimated
		value	amount		fair value		amount		fair value
		measurement
		hierarchy
	ASSETS:
	Cash and cash equivalents	Level 1	$	197,815	$	197,815	$	189,460	$	189,460
	Asset backed securities available-for-sale	Level 2	2,068		2,068		4,537		4,537
	Mortgage-backed securities—residential mortgage pass-through securities issued or guaranteed by U.S. Government agencies or sponsored enterprises available-for-sale	Level 2	472,956		472,956		494,990		494,990
	Mortgage-backed securities—other residential mortgage-backed securities issued or guaranteed by U.S. Government agencies or sponsored enterprises available-for-sale	Level 2	1,245,397		1,245,397		1,285,582		1,285,582
	Other securities	Level 3	419		419		419		419
	Mortgage-backed securities—residential mortgage pass-through securities issued or guaranteed by U.S. Government agencies or sponsored enterprises held-to-maturity	Level 2	492,294		492,969		513,090		511,489
	Mortgage-backed securities—other residential mortgage-backed securities issued or guaranteed by U.S. Government agencies or sponsored enterprises held-to-maturity	Level 2	123,927		121,154		128,817		124,916
	Capital stock of FHLB	Level 2	6,089		6,089		6,643		6,643
	Capital stock of FRB	Level 2	25,020		25,020		25,020		25,020
	Loans receivable, net	Level 3	1,947,620		2,015,036		1,841,573		1,923,888
	Loans held-for-sale	Level 2	2,143		2,143		5,787		5,787
	Accrued interest receivable	Level 2	12,197		12,197		11,355		11,355
	Derivatives	Level 2	205		205		202		202
	LIABILITIES:
	Deposit transaction accounts	Level 2	2,422,198		2,422,198		2,342,622		2,342,622
	Time deposits	Level 2	1,443,898		1,446,661		1,495,687		1,498,798
	Securities sold under agreements to repurchase	Level 2	91,065		91,065		99,547		99,547
	Due to FDIC	Level 3	33,309		33,309		41,882		41,882
	Warrant liability	Level 3	5,383		5,383		6,281		6,281
	Accrued interest payable	Level 2	3,112		3,112		3,058		3,058
	Derivatives	Level 2	704		704		74		74

Basis_of_Presentation_Details

Basis of Presentation - (Details)	3 Months Ended
	Mar. 31, 2014
	banking_center
Accounting Policies [Abstract]	'
Number Of Full Service Banking Offices	97

Investment_Securities_Narrativ

Investment Securities - (Narrative) (Detail) (USD $)	3 Months Ended	12 Months Ended
	Mar. 31, 2014	Dec. 31, 2013
Investments Schedule [Abstract]	'	'
Investment securities total	$2,300,000,000	$2,400,000,000
Available-for-sale securities	1,720,840,000	1,785,528,000
Mortgage-backed securities as percentage of available-for-sale investment portfolio	99.90%	99.70%
Fair value of available-for-sale investment securities pledged as collateral	191,900,000	177,600,000
Estimated weighted average life of the available-for-sale mortgage-backed securities portfolio	'3 years 9 months 25 days	'3 years 10 months 17 days
Other securities	419,000	'
Held-to-maturity securities	616,221,000	641,907,000
Held-to-maturity investment securities pledged as collateral	$58,900,000	$68,500,000
Estimated weighted average expected life of the held-to-maturity mortgage-backed securities portfolio	'3 years 9 months 15 days	'3 years 9 months 26 days

Investment_Securities_Summary_

Investment Securities - (Summary of Available-for-Sale Investment Securities) (Detail) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized cost	$1,738,551	$1,816,272
Gross unrealized gains	19,444	18,437
Gross unrealized losses	-37,155	-49,181
Fair value	1,720,840	1,785,528
Asset Backed Securities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized cost	2,066	4,534
Gross unrealized gains	2	3
Gross unrealized losses	0	0
Fair value	2,068	4,537
Residential Mortgage Pass-Through Securities Issued or Guaranteed by U.S. Government Agencies or Sponsored Enterprises [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized cost	465,901	490,321
Gross unrealized gains	8,422	7,670
Gross unrealized losses	-1,367	-3,001
Fair value	472,956	494,990
Other Residential MBS Issued or Guaranteed by U.S. Government Agencies or Sponsored Enterprises [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized cost	1,270,165	1,320,998
Gross unrealized gains	11,020	10,764
Gross unrealized losses	-35,788	-46,180
Fair value	1,245,397	1,285,582
Other Securities [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Amortized cost	419	419
Gross unrealized gains	0	0
Gross unrealized losses	0	0
Fair value	$419	$419

Investment_Securities_Summary_1

Investment Securities - (Summary of Unrealized Losses) (Detail) (USD $)	3 Months Ended	12 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Schedule of Available-for-sale Securities [Line Items]	'	'
Less than 12 months Fair Value	$853,487	$1,159,402
Less than 12 months Unrealized Losses	-23,101	-47,101
12 months or more, Fair Value	286,897	40,753
12 months or more, Unrealized Losses	-14,054	-2,080
Total, Fair Value	1,140,384	1,200,155
Total Unrealized losses	-37,155	-49,181
Residential Mortgage Pass-Through Securities Issued or Guaranteed by U.S. Government Agencies or Sponsored Enterprises [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Less than 12 months Fair Value	252,142	283,177
Less than 12 months Unrealized Losses	-1,366	-3,000
12 months or more, Fair Value	11	13
12 months or more, Unrealized Losses	-1	-1
Total, Fair Value	252,153	283,190
Total Unrealized losses	-1,367	-3,001
Other Residential MBS Issued or Guaranteed by U.S. Government Agencies or Sponsored Enterprises [Member]	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Less than 12 months Fair Value	601,345	876,225
Less than 12 months Unrealized Losses	-21,735	-44,101
12 months or more, Fair Value	286,886	40,740
12 months or more, Unrealized Losses	-14,053	-2,079
Total, Fair Value	888,231	916,965
Total Unrealized losses	($35,788)	($46,180)

Investment_Securities_Summary_2

Investment Securities - (Summary of Contractual Maturities Available-for-Sale Investment Portfolio) (Detail) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract]	'	'
Due in one year or less, Amortized cost	$0	'
Due after one year through five years, Amortized cost	2,074	'
Due after five years through ten years, Amortized cost	185,658	'
Due after ten years, Amortized cost	1,550,400	'
Other securities, Amortized cost	419	'
Total investment securities available-for-sale, Amortized cost	1,738,551	'
Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract]	'	'
Due in one year or less, Fair Value	0	'
Due after one year through five years, Fair Value	2,076	'
Due after five years through ten years, Fair Value	185,373	'
Due after ten years, Fair Value	1,532,972	'
Other Securities, Fair Value	419	'
Fair value	$1,720,840	$1,785,528

Investment_Securities_Summary_3

Investment Securities - (Summary of Held-to-maturity Investment Securities) (Detail) (USD $)	3 Months Ended	12 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Schedule of Held-to-maturity Securities [Line Items]	'	'
Amortized cost	$616,221	$641,907
Gross unrealized gains	1,857	279
Gross unrealized losses	-3,955	-5,781
Fair value	614,123	636,405
Residential Mortgage Pass-Through Securities Issued or Guaranteed by U.S. Government Agencies or Sponsored Enterprises [Member]	'	'
Schedule of Held-to-maturity Securities [Line Items]	'	'
Amortized cost	492,294	513,090
Gross unrealized gains	1,537	175
Gross unrealized losses	-862	-1,776
Fair value	492,969	511,489
Other Residential MBS Issued or Guaranteed by U.S. Government Agencies or Sponsored Enterprises [Member]	'	'
Schedule of Held-to-maturity Securities [Line Items]	'	'
Amortized cost	123,927	128,817
Gross unrealized gains	320	104
Gross unrealized losses	-3,093	-4,005
Fair value	$121,154	$124,916

Investment_Securities_Summary_4

Investment Securities - (Summary of Contractual Maturities Held-to-Maturity of Investment Portfolio) (Detail) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Investments Schedule [Abstract]	'	'
Due in one year or less, Amortized Cost	$0	'
Due after one year through five years, Amortized Cost	0	'
Due after five years through ten years, Amortized Cost	17,597	'
Due after ten years, Amortized Cost	598,624	'
Total investment securities held-to-maturity	616,221	'
Due in one year or less, Fair Value	0	'
Due after one year through five years, Fair Value	0	'
Due after five years through ten years, Fair Value	17,760	'
Due after ten years, Fair Value	596,363	'
Fair Value	$614,123	$636,405

Loans_Narrative_Section_Detail

Loans - Narrative Section (Details) (USD $)	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2013
Debt Instrument [Line Items]	'	'	'
Covered Loans Percentage	14.70%	16.70%	'
Fees and cost related to loans	$12,900,000	$13,300,000	'
Carrying amount of loan investments	1,961,592,000	1,854,094,000	1,765,450,000
Non Accrual [Member]	'	'	'
Debt Instrument [Line Items]	'	'	'
Financing Receivable, Recorded Investment, Nonaccrual Status	9,738,000	9,517,000	'
ASC 310-30 [Member]	'	'	'
Debt Instrument [Line Items]	'	'	'
Carrying amount of loan investments	406,546,000	450,880,000	'
ASC 310-30 [Member] | Accruing [Member]	'	'	'
Debt Instrument [Line Items]	'	'	'
Carrying amount of loan investments	14,700,000	'	'
Covered [Member] | ASC 310-30 [Member] | Non Accrual [Member] | Commercial And Industrial Loan [Member]	'	'	'
Debt Instrument [Line Items]	'	'	'
Financing Receivable, Recorded Investment, Nonaccrual Status	$0	$14,827,000	'

Loans_Impaired_Loans_Narrative

Loans - Impaired Loans Narrative (Details) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Debt Instrument [Line Items]	'	'
Impaired loans	$9,600	'
Recorded investment of impaired loans	33,103	21,647
Impaired loans which were covered by FDIC loss sharing agreement	287,590	309,397
Collective related allowance for loan losses for impaired loans	679	946
Discounted Cash Flows [Member]	'	'
Debt Instrument [Line Items]	'	'
Impaired loans	7,300	'
Fair Value Of Collateral Pledged [Member]	'	'
Debt Instrument [Line Items]	'	'
Impaired loans	16,200	'
General Reserve [Member]	'	'
Debt Instrument [Line Items]	'	'
Impaired loans	250	'
Covered [Member]	'	'
Debt Instrument [Line Items]	'	'
Impaired loans which were covered by FDIC loss sharing agreement	$6,900	$7,700

Loans_Loan_Portfolio_Compositi

Loans - (Loan Portfolio Composition Including Carrying Value by Segment of Loans Accounted for under ASC Topic 310-30 and Loans Covered by the FDIC Loss Sharing Agreements) (Detail) (USD $)	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2013
In Thousands, unless otherwise specified
Loans [Line Items]	'	'	'
Total Loans	$1,961,592	$1,854,094	$1,765,450
Covered Loans Percentage	14.70%	16.70%	'
% of Total	100.00%	100.00%	'
Covered [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	287,590	309,397	'
Non-Covered [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	1,674,002	1,544,697	'
% of Total	85.30%	83.30%	'
Commercial Loan [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	582,569	483,495	264,730
% of Total	29.70%	26.10%	'
Commercial Real Estate [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	580,745	574,220	746,740
% of Total	29.60%	31.00%	'
Agriculture [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	155,131	159,952	164,737
% of Total	7.90%	8.60%	'
Residential Real Estate Segment [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	609,225	599,924	547,571
% of Total	31.10%	32.30%	'
Consumer [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	33,922	36,503	41,672
% of Total	1.70%	2.00%	'
Non ASC 310-30 [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	1,555,046	1,403,214	'
Non ASC 310-30 [Member] | Covered [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	43,268	50,033	'
Non ASC 310-30 [Member] | Non-Covered [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	1,511,778	1,353,181	'
Non ASC 310-30 [Member] | Commercial Loan [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	530,462	421,984	'
Non ASC 310-30 [Member] | Commercial Real Estate [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	317,137	283,022	'
Non ASC 310-30 [Member] | Agriculture [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	131,586	132,952	'
Non ASC 310-30 [Member] | Residential Real Estate Segment [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	548,758	536,913	'
Non ASC 310-30 [Member] | Consumer [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	27,103	28,343	'
ASC 310-30 [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	406,546	450,880	'
ASC 310-30 [Member] | Covered [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	244,322	259,364	'
ASC 310-30 [Member] | Non-Covered [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	162,224	191,516	'
ASC 310-30 [Member] | Commercial Loan [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	52,107	61,511	'
ASC 310-30 [Member] | Commercial Real Estate [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	263,608	291,198	'
ASC 310-30 [Member] | Agriculture [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	23,545	27,000	'
ASC 310-30 [Member] | Residential Real Estate Segment [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	60,467	63,011	'
ASC 310-30 [Member] | Consumer [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	$6,819	$8,160	'

Loans_Loan_Delinquency_Detail

Loans - (Loan Delinquency) (Detail) (USD $)	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2013
In Thousands, unless otherwise specified
Loans [Line Items]	'	'	'
Total loans	$1,961,592	$1,854,094	$1,765,450
Commercial Loan [Member]	'	'	'
Loans [Line Items]	'	'	'
Total loans	582,569	483,495	264,730
Commercial Real Estate [Member]	'	'	'
Loans [Line Items]	'	'	'
Total loans	580,745	574,220	746,740
Agriculture [Member]	'	'	'
Loans [Line Items]	'	'	'
Total loans	155,131	159,952	164,737
Residential Real Estate Segment [Member]	'	'	'
Loans [Line Items]	'	'	'
Total loans	609,225	599,924	547,571
Consumer [Member]	'	'	'
Loans [Line Items]	'	'	'
Total loans	33,922	36,503	41,672
Non ASC 310-30 [Member]	'	'	'
Loans [Line Items]	'	'	'
Total loans	1,555,046	1,403,214	'
Non ASC 310-30 [Member] | Commercial Loan [Member]	'	'	'
Loans [Line Items]	'	'	'
Total loans	530,462	421,984	'
Non ASC 310-30 [Member] | Commercial Real Estate [Member]	'	'	'
Loans [Line Items]	'	'	'
Total loans	317,137	283,022	'
Non ASC 310-30 [Member] | Agriculture [Member]	'	'	'
Loans [Line Items]	'	'	'
Total loans	131,586	132,952	'
Non ASC 310-30 [Member] | Residential Real Estate Segment [Member]	'	'	'
Loans [Line Items]	'	'	'
Total loans	548,758	536,913	'
Non ASC 310-30 [Member] | Consumer [Member]	'	'	'
Loans [Line Items]	'	'	'
Total loans	27,103	28,343	'
ASC 310-30 [Member]	'	'	'
Loans [Line Items]	'	'	'
Total loans	406,546	450,880	'
ASC 310-30 [Member] | Commercial Loan [Member]	'	'	'
Loans [Line Items]	'	'	'
Total loans	52,107	61,511	'
ASC 310-30 [Member] | Commercial Real Estate [Member]	'	'	'
Loans [Line Items]	'	'	'
Total loans	263,608	291,198	'
ASC 310-30 [Member] | Agriculture [Member]	'	'	'
Loans [Line Items]	'	'	'
Total loans	23,545	27,000	'
ASC 310-30 [Member] | Residential Real Estate Segment [Member]	'	'	'
Loans [Line Items]	'	'	'
Total loans	60,467	63,011	'
ASC 310-30 [Member] | Consumer [Member]	'	'	'
Loans [Line Items]	'	'	'
Total loans	6,819	8,160	'
Covered [Member]	'	'	'
Loans [Line Items]	'	'	'
Total loans	287,590	309,397	'
Covered [Member] | Non ASC 310-30 [Member]	'	'	'
Loans [Line Items]	'	'	'
Total loans	43,268	50,033	'
Covered [Member] | ASC 310-30 [Member]	'	'	'
Loans [Line Items]	'	'	'
Total loans	244,322	259,364	'
Non-Covered [Member]	'	'	'
Loans [Line Items]	'	'	'
Total loans	1,674,002	1,544,697	'
Non-Covered [Member] | Non ASC 310-30 [Member]	'	'	'
Loans [Line Items]	'	'	'
Total loans	1,511,778	1,353,181	'
Non-Covered [Member] | ASC 310-30 [Member]	'	'	'
Loans [Line Items]	'	'	'
Total loans	162,224	191,516	'
Total Loans [Member]	'	'	'
Loans [Line Items]	'	'	'
30-59 days past due	26,481	8,460	'
60-89 days past due	5,429	7,349	'
Greater than 90 days past due	49,515	57,809	'
Total past due	81,425	73,618	'
Current	1,880,167	1,780,476	'
Total loans	1,961,592	1,854,094	'
Loans 90 days past due and still accruing	47,842	55,993	'
Non- accrual	9,738	24,344	'
Total Loans [Member] | Non ASC 310-30 [Member]	'	'	'
Loans [Line Items]	'	'	'
30-59 days past due	4,031	3,958	'
60-89 days past due	2,006	606	'
Greater than 90 days past due	1,727	1,944	'
Total past due	7,764	6,508	'
Current	1,547,282	1,396,706	'
Total loans	1,555,046	1,403,214	'
Loans 90 days past due and still accruing	53	129	'
Non- accrual	9,738	9,517	'
Total Loans [Member] | Non ASC 310-30 [Member] | Commercial Construction [Member]	'	'	'
Loans [Line Items]	'	'	'
30-59 days past due	0	316	'
60-89 days past due	0	0	'
Greater than 90 days past due	0	0	'
Total past due	0	316	'
Current	4,957	5,023	'
Total loans	4,957	5,339	'
Loans 90 days past due and still accruing	0	0	'
Non- accrual	0	0	'
Total Loans [Member] | Non ASC 310-30 [Member] | Commercial Acquisition/Development [Member]	'	'	'
Loans [Line Items]	'	'	'
30-59 days past due	44	45	'
60-89 days past due	0	0	'
Greater than 90 days past due	0	0	'
Total past due	44	45	'
Current	8,225	7,975	'
Total loans	8,269	8,020	'
Loans 90 days past due and still accruing	0	0	'
Non- accrual	0	1	'
Total Loans [Member] | Non ASC 310-30 [Member] | Multifamily [Member]	'	'	'
Loans [Line Items]	'	'	'
30-59 days past due	99	1,003	'
60-89 days past due	0	0	'
Greater than 90 days past due	0	0	'
Total past due	99	1,003	'
Current	10,294	9,681	'
Total loans	10,393	10,684	'
Loans 90 days past due and still accruing	0	0	'
Non- accrual	1,059	1,096	'
Total Loans [Member] | Non ASC 310-30 [Member] | Owner-Occupied [Member]	'	'	'
Loans [Line Items]	'	'	'
30-59 days past due	255	52	'
60-89 days past due	387	7	'
Greater than 90 days past due	52	21	'
Total past due	694	80	'
Current	109,089	93,367	'
Total loans	109,783	93,447	'
Loans 90 days past due and still accruing	0	0	'
Non- accrual	956	692	'
Total Loans [Member] | Non ASC 310-30 [Member] | Non Owner-Occupied [Member]	'	'	'
Loans [Line Items]	'	'	'
30-59 days past due	113	329	'
60-89 days past due	38	0	'
Greater than 90 days past due	203	203	'
Total past due	354	532	'
Current	183,381	165,000	'
Total loans	183,735	165,532	'
Loans 90 days past due and still accruing	0	0	'
Non- accrual	203	203	'
Total Loans [Member] | Non ASC 310-30 [Member] | Total Commercial Real Estate [Member]	'	'	'
Loans [Line Items]	'	'	'
30-59 days past due	511	1,745	'
60-89 days past due	425	7	'
Greater than 90 days past due	255	224	'
Total past due	1,191	1,976	'
Current	315,946	281,046	'
Total loans	317,137	283,022	'
Loans 90 days past due and still accruing	0	0	'
Non- accrual	2,218	1,992	'
Total Loans [Member] | Non ASC 310-30 [Member] | Sr lien [Member]	'	'	'
Loans [Line Items]	'	'	'
30-59 days past due	1,401	733	'
60-89 days past due	533	415	'
Greater than 90 days past due	750	1,062	'
Total past due	2,684	2,210	'
Current	494,576	482,381	'
Total loans	497,260	484,591	'
Loans 90 days past due and still accruing	0	0	'
Non- accrual	5,283	5,326	'
Total Loans [Member] | Non ASC 310-30 [Member] | Jr Liens [Member]	'	'	'
Loans [Line Items]	'	'	'
30-59 days past due	65	204	'
60-89 days past due	17	0	'
Greater than 90 days past due	46	80	'
Total past due	128	284	'
Current	51,370	52,038	'
Total loans	51,498	52,322	'
Loans 90 days past due and still accruing	0	0	'
Non- accrual	482	519	'
Total Loans [Member] | Non ASC 310-30 [Member] | Covered loans excluded from ASC 310-30 [Member]	'	'	'
Loans [Line Items]	'	'	'
30-59 days past due	174	194	'
60-89 days past due	52	60	'
Greater than 90 days past due	351	155	'
Total past due	577	409	'
Current	42,691	49,624	'
Total loans	43,268	50,033	'
Loans 90 days past due and still accruing	0	115	'
Non- accrual	2,175	1,944	'
Total Loans [Member] | Non ASC 310-30 [Member] | Non-covered loans excluded from ASC 310-30 [Member]	'	'	'
Loans [Line Items]	'	'	'
30-59 days past due	3,857	3,764	'
60-89 days past due	1,954	546	'
Greater than 90 days past due	1,376	1,789	'
Total past due	7,187	6,099	'
Current	1,504,591	1,347,082	'
Total loans	1,511,778	1,353,181	'
Loans 90 days past due and still accruing	53	14	'
Non- accrual	7,563	7,573	'
Total Loans [Member] | Non ASC 310-30 [Member] | Commercial Loan [Member]	'	'	'
Loans [Line Items]	'	'	'
30-59 days past due	1,210	897	'
60-89 days past due	1,020	156	'
Greater than 90 days past due	282	555	'
Total past due	2,512	1,608	'
Current	527,950	420,376	'
Total loans	530,462	421,984	'
Loans 90 days past due and still accruing	25	115	'
Non- accrual	992	1,280	'
Total Loans [Member] | Non ASC 310-30 [Member] | Agriculture [Member]	'	'	'
Loans [Line Items]	'	'	'
30-59 days past due	80	188	'
60-89 days past due	0	7	'
Greater than 90 days past due	365	0	'
Total past due	445	195	'
Current	131,141	132,757	'
Total loans	131,586	132,952	'
Loans 90 days past due and still accruing	0	0	'
Non- accrual	539	153	'
Total Loans [Member] | Non ASC 310-30 [Member] | Residential Real Estate Segment [Member]	'	'	'
Loans [Line Items]	'	'	'
30-59 days past due	1,466	937	'
60-89 days past due	550	415	'
Greater than 90 days past due	796	1,142	'
Total past due	2,812	2,494	'
Current	545,946	534,419	'
Total loans	548,758	536,913	'
Loans 90 days past due and still accruing	0	0	'
Non- accrual	5,765	5,845	'
Total Loans [Member] | Non ASC 310-30 [Member] | Consumer [Member]	'	'	'
Loans [Line Items]	'	'	'
30-59 days past due	764	191	'
60-89 days past due	11	21	'
Greater than 90 days past due	29	23	'
Total past due	804	235	'
Current	26,299	28,108	'
Total loans	27,103	28,343	'
Loans 90 days past due and still accruing	28	14	'
Non- accrual	224	247	'
Total Loans [Member] | ASC 310-30 [Member]	'	'	'
Loans [Line Items]	'	'	'
30-59 days past due	22,450	4,502	'
60-89 days past due	3,423	6,743	'
Greater than 90 days past due	47,788	55,865	'
Total past due	73,661	67,110	'
Current	332,885	383,770	'
Total loans	406,546	450,880	'
Loans 90 days past due and still accruing	47,789	55,864	'
Non- accrual	0	14,827	'
Total Loans [Member] | ASC 310-30 [Member] | Commercial Loan [Member]	'	'	'
Loans [Line Items]	'	'	'
30-59 days past due	15,819	582	'
60-89 days past due	538	322	'
Greater than 90 days past due	4,372	4,505	'
Total past due	20,729	5,409	'
Current	31,378	56,102	'
Total loans	52,107	61,511	'
Loans 90 days past due and still accruing	4,372	4,505	'
Non- accrual	0	14,827	'
Total Loans [Member] | ASC 310-30 [Member] | Commercial Real Estate [Member]	'	'	'
Loans [Line Items]	'	'	'
30-59 days past due	4,425	1,902	'
60-89 days past due	2,636	5,179	'
Greater than 90 days past due	41,218	49,228	'
Total past due	48,279	56,309	'
Current	215,329	234,889	'
Total loans	263,608	291,198	'
Loans 90 days past due and still accruing	41,219	49,227	'
Non- accrual	0	0	'
Total Loans [Member] | ASC 310-30 [Member] | Agriculture [Member]	'	'	'
Loans [Line Items]	'	'	'
30-59 days past due	43	714	'
60-89 days past due	0	0	'
Greater than 90 days past due	51	296	'
Total past due	94	1,010	'
Current	23,451	25,990	'
Total loans	23,545	27,000	'
Loans 90 days past due and still accruing	51	296	'
Non- accrual	0	0	'
Total Loans [Member] | ASC 310-30 [Member] | Residential Real Estate Segment [Member]	'	'	'
Loans [Line Items]	'	'	'
30-59 days past due	1,997	977	'
60-89 days past due	242	977	'
Greater than 90 days past due	1,968	1,817	'
Total past due	4,207	3,771	'
Current	56,260	59,240	'
Total loans	60,467	63,011	'
Loans 90 days past due and still accruing	1,968	1,817	'
Non- accrual	0	0	'
Total Loans [Member] | ASC 310-30 [Member] | Consumer [Member]	'	'	'
Loans [Line Items]	'	'	'
30-59 days past due	166	327	'
60-89 days past due	7	265	'
Greater than 90 days past due	179	19	'
Total past due	352	611	'
Current	6,467	7,549	'
Total loans	6,819	8,160	'
Loans 90 days past due and still accruing	179	19	'
Non- accrual	0	0	'
Total Loans [Member] | ASC 310-30 [Member] | Covered loans accounted for under ASC Topic 310-30 [Member]	'	'	'
Loans [Line Items]	'	'	'
30-59 days past due	18,589	1,471	'
60-89 days past due	2,501	4,949	'
Greater than 90 days past due	37,198	42,356	'
Total past due	58,288	48,776	'
Current	186,034	210,588	'
Total loans	244,322	259,364	'
Loans 90 days past due and still accruing	37,199	42,355	'
Non- accrual	0	14,827	'
Total Loans [Member] | ASC 310-30 [Member] | Non-covered loans accounted for under ASC Topic 310-30 [Member]	'	'	'
Loans [Line Items]	'	'	'
30-59 days past due	3,861	3,031	'
60-89 days past due	922	1,794	'
Greater than 90 days past due	10,590	13,509	'
Total past due	15,373	18,334	'
Current	146,851	173,182	'
Total loans	162,224	191,516	'
Loans 90 days past due and still accruing	10,590	13,509	'
Non- accrual	0	0	'
Total Loans [Member] | Covered [Member]	'	'	'
Loans [Line Items]	'	'	'
30-59 days past due	18,763	1,665	'
60-89 days past due	2,553	5,009	'
Greater than 90 days past due	37,549	42,511	'
Total past due	58,865	49,185	'
Current	228,725	260,212	'
Total loans	287,590	309,397	'
Loans 90 days past due and still accruing	37,199	42,470	'
Non- accrual	2,175	16,771	'
Total Loans [Member] | Non-Covered [Member]	'	'	'
Loans [Line Items]	'	'	'
30-59 days past due	7,718	6,795	'
60-89 days past due	2,876	2,340	'
Greater than 90 days past due	11,966	15,298	'
Total past due	22,560	24,433	'
Current	1,651,442	1,520,264	'
Total loans	1,674,002	1,544,697	'
Loans 90 days past due and still accruing	10,643	13,523	'
Non- accrual	7,563	7,573	'
Total Loans [Member] | Covered And Non-covered [Member]	'	'	'
Loans [Line Items]	'	'	'
30-59 days past due	26,481	8,460	'
60-89 days past due	5,429	7,349	'
Greater than 90 days past due	49,515	57,809	'
Total past due	81,425	73,618	'
Current	1,880,167	1,780,476	'
Total loans	1,961,592	1,854,094	'
Loans 90 days past due and still accruing	47,842	55,993	'
Non- accrual	$9,738	$24,344	'

Loans_Credit_Exposure_for_Loan

Loans - (Credit Exposure for Loans as Determined by Company's Internal Risk Rating System) (Detail) (USD $)	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2013
In Thousands, unless otherwise specified
Loans [Line Items]	'	'	'
Total Loans	$1,961,592	$1,854,094	$1,765,450
Agriculture [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	155,131	159,952	164,737
Residential Real Estate Segment [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	609,225	599,924	547,571
Consumer [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	33,922	36,503	41,672
Commercial Loan [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	582,569	483,495	264,730
Commercial Real Estate [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	580,745	574,220	746,740
Non ASC 310-30 [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	1,555,046	1,403,214	'
Non ASC 310-30 [Member] | Agriculture [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	131,586	132,952	'
Non ASC 310-30 [Member] | Residential Real Estate Segment [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	548,758	536,913	'
Non ASC 310-30 [Member] | Consumer [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	27,103	28,343	'
Non ASC 310-30 [Member] | Commercial Loan [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	530,462	421,984	'
Non ASC 310-30 [Member] | Commercial Real Estate [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	317,137	283,022	'
ASC 310-30 [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	406,546	450,880	'
ASC 310-30 [Member] | Agriculture [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	23,545	27,000	'
ASC 310-30 [Member] | Residential Real Estate Segment [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	60,467	63,011	'
ASC 310-30 [Member] | Consumer [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	6,819	8,160	'
ASC 310-30 [Member] | Commercial Loan [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	52,107	61,511	'
ASC 310-30 [Member] | Commercial Real Estate [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	263,608	291,198	'
Covered [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	287,590	309,397	'
Covered [Member] | Non ASC 310-30 [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	43,268	50,033	'
Covered [Member] | ASC 310-30 [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	244,322	259,364	'
Non-Covered [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	1,674,002	1,544,697	'
Non-Covered [Member] | Non ASC 310-30 [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	1,511,778	1,353,181	'
Non-Covered [Member] | ASC 310-30 [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	162,224	191,516	'
Total Loans [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	1,961,592	1,854,094	'
Total Loans [Member] | Non ASC 310-30 [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	1,555,046	1,403,214	'
Total Loans [Member] | Non ASC 310-30 [Member] | Commercial Construction [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	4,957	5,339	'
Total Loans [Member] | Non ASC 310-30 [Member] | Commercial Acquisition/Development [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	8,269	8,020	'
Total Loans [Member] | Non ASC 310-30 [Member] | Multifamily [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	10,393	10,684	'
Total Loans [Member] | Non ASC 310-30 [Member] | Owner-Occupied [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	109,783	93,447	'
Total Loans [Member] | Non ASC 310-30 [Member] | Non Owner-Occupied [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	183,735	165,532	'
Total Loans [Member] | Non ASC 310-30 [Member] | Total Commercial Real Estate [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	317,137	283,022	'
Total Loans [Member] | Non ASC 310-30 [Member] | Agriculture [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	131,586	132,952	'
Total Loans [Member] | Non ASC 310-30 [Member] | Sr lien [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	497,260	484,591	'
Total Loans [Member] | Non ASC 310-30 [Member] | Jr Liens [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	51,498	52,322	'
Total Loans [Member] | Non ASC 310-30 [Member] | Residential Real Estate Segment [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	548,758	536,913	'
Total Loans [Member] | Non ASC 310-30 [Member] | Consumer [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	27,103	28,343	'
Total Loans [Member] | Non ASC 310-30 [Member] | Covered loans excluded from ASC 310-30 [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	43,268	50,033	'
Total Loans [Member] | Non ASC 310-30 [Member] | Non-covered loans excluded from ASC 310-30 [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	1,511,778	1,353,181	'
Total Loans [Member] | Non ASC 310-30 [Member] | Commercial Loan [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	530,462	421,984	'
Total Loans [Member] | ASC 310-30 [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	406,546	450,880	'
Total Loans [Member] | ASC 310-30 [Member] | Agriculture [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	23,545	27,000	'
Total Loans [Member] | ASC 310-30 [Member] | Residential Real Estate Segment [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	60,467	63,011	'
Total Loans [Member] | ASC 310-30 [Member] | Consumer [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	6,819	8,160	'
Total Loans [Member] | ASC 310-30 [Member] | Commercial Loan [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	52,107	61,511	'
Total Loans [Member] | ASC 310-30 [Member] | Commercial Real Estate [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	263,608	291,198	'
Total Loans [Member] | ASC 310-30 [Member] | Covered loans accounted for under ASC Topic 310-30 [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	244,322	259,364	'
Total Loans [Member] | ASC 310-30 [Member] | Non-covered loans accounted for under ASC Topic 310-30 [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	162,224	191,516	'
Total Loans [Member] | Pass [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	1,648,693	1,508,697	'
Total Loans [Member] | Pass [Member] | Non ASC 310-30 [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	1,456,123	1,296,940	'
Total Loans [Member] | Pass [Member] | Non ASC 310-30 [Member] | Commercial Construction [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	4,957	5,339	'
Total Loans [Member] | Pass [Member] | Non ASC 310-30 [Member] | Commercial Acquisition/Development [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	1,558	1,366	'
Total Loans [Member] | Pass [Member] | Non ASC 310-30 [Member] | Multifamily [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	9,334	9,588	'
Total Loans [Member] | Pass [Member] | Non ASC 310-30 [Member] | Owner-Occupied [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	104,127	87,984	'
Total Loans [Member] | Pass [Member] | Non ASC 310-30 [Member] | Non Owner-Occupied [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	161,381	142,159	'
Total Loans [Member] | Pass [Member] | Non ASC 310-30 [Member] | Total Commercial Real Estate [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	281,357	246,436	'
Total Loans [Member] | Pass [Member] | Non ASC 310-30 [Member] | Agriculture [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	121,436	123,216	'
Total Loans [Member] | Pass [Member] | Non ASC 310-30 [Member] | Sr lien [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	488,132	475,041	'
Total Loans [Member] | Pass [Member] | Non ASC 310-30 [Member] | Jr Liens [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	49,119	49,874	'
Total Loans [Member] | Pass [Member] | Non ASC 310-30 [Member] | Residential Real Estate Segment [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	537,251	524,915	'
Total Loans [Member] | Pass [Member] | Non ASC 310-30 [Member] | Consumer [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	26,876	28,092	'
Total Loans [Member] | Pass [Member] | Non ASC 310-30 [Member] | Covered loans excluded from ASC 310-30 [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	16,698	22,175	'
Total Loans [Member] | Pass [Member] | Non ASC 310-30 [Member] | Non-covered loans excluded from ASC 310-30 [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	1,439,425	1,274,765	'
Total Loans [Member] | Pass [Member] | Non ASC 310-30 [Member] | Commercial Loan [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	489,203	374,281	'
Total Loans [Member] | Pass [Member] | ASC 310-30 [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	192,570	211,757	'
Total Loans [Member] | Pass [Member] | ASC 310-30 [Member] | Agriculture [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	20,297	21,900	'
Total Loans [Member] | Pass [Member] | ASC 310-30 [Member] | Residential Real Estate Segment [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	42,810	43,904	'
Total Loans [Member] | Pass [Member] | ASC 310-30 [Member] | Consumer [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	5,818	6,921	'
Total Loans [Member] | Pass [Member] | ASC 310-30 [Member] | Commercial Loan [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	14,576	23,129	'
Total Loans [Member] | Pass [Member] | ASC 310-30 [Member] | Commercial Real Estate [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	109,069	115,903	'
Total Loans [Member] | Pass [Member] | ASC 310-30 [Member] | Covered loans accounted for under ASC Topic 310-30 [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	89,706	100,050	'
Total Loans [Member] | Pass [Member] | ASC 310-30 [Member] | Non-covered loans accounted for under ASC Topic 310-30 [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	102,864	111,707	'
Total Loans [Member] | Special Mention [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	39,936	59,751	'
Total Loans [Member] | Special Mention [Member] | Non ASC 310-30 [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	27,699	41,578	'
Total Loans [Member] | Special Mention [Member] | Non ASC 310-30 [Member] | Commercial Construction [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	0	0	'
Total Loans [Member] | Special Mention [Member] | Non ASC 310-30 [Member] | Commercial Acquisition/Development [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	2,248	2,247	'
Total Loans [Member] | Special Mention [Member] | Non ASC 310-30 [Member] | Multifamily [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	0	0	'
Total Loans [Member] | Special Mention [Member] | Non ASC 310-30 [Member] | Owner-Occupied [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	166	169	'
Total Loans [Member] | Special Mention [Member] | Non ASC 310-30 [Member] | Non Owner-Occupied [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	18,140	18,536	'
Total Loans [Member] | Special Mention [Member] | Non ASC 310-30 [Member] | Total Commercial Real Estate [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	20,554	20,952	'
Total Loans [Member] | Special Mention [Member] | Non ASC 310-30 [Member] | Agriculture [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	331	9,049	'
Total Loans [Member] | Special Mention [Member] | Non ASC 310-30 [Member] | Sr lien [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	1,223	1,495	'
Total Loans [Member] | Special Mention [Member] | Non ASC 310-30 [Member] | Jr Liens [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	197	200	'
Total Loans [Member] | Special Mention [Member] | Non ASC 310-30 [Member] | Residential Real Estate Segment [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	1,420	1,695	'
Total Loans [Member] | Special Mention [Member] | Non ASC 310-30 [Member] | Consumer [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	0	0	'
Total Loans [Member] | Special Mention [Member] | Non ASC 310-30 [Member] | Covered loans excluded from ASC 310-30 [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	2,920	3,439	'
Total Loans [Member] | Special Mention [Member] | Non ASC 310-30 [Member] | Non-covered loans excluded from ASC 310-30 [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	24,779	38,139	'
Total Loans [Member] | Special Mention [Member] | Non ASC 310-30 [Member] | Commercial Loan [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	5,394	9,882	'
Total Loans [Member] | Special Mention [Member] | ASC 310-30 [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	12,237	18,173	'
Total Loans [Member] | Special Mention [Member] | ASC 310-30 [Member] | Agriculture [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	661	1,117	'
Total Loans [Member] | Special Mention [Member] | ASC 310-30 [Member] | Residential Real Estate Segment [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	916	1,098	'
Total Loans [Member] | Special Mention [Member] | ASC 310-30 [Member] | Consumer [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	216	244	'
Total Loans [Member] | Special Mention [Member] | ASC 310-30 [Member] | Commercial Loan [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	3,732	3,221	'
Total Loans [Member] | Special Mention [Member] | ASC 310-30 [Member] | Commercial Real Estate [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	6,712	12,493	'
Total Loans [Member] | Special Mention [Member] | ASC 310-30 [Member] | Covered loans accounted for under ASC Topic 310-30 [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	6,072	8,498	'
Total Loans [Member] | Special Mention [Member] | ASC 310-30 [Member] | Non-covered loans accounted for under ASC Topic 310-30 [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	6,165	9,675	'
Total Loans [Member] | Substandard [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	266,587	279,001	'
Total Loans [Member] | Substandard [Member] | Non ASC 310-30 [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	70,607	63,826	'
Total Loans [Member] | Substandard [Member] | Non ASC 310-30 [Member] | Commercial Construction [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	0	0	'
Total Loans [Member] | Substandard [Member] | Non ASC 310-30 [Member] | Commercial Acquisition/Development [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	4,463	4,407	'
Total Loans [Member] | Substandard [Member] | Non ASC 310-30 [Member] | Multifamily [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	1,034	1,068	'
Total Loans [Member] | Substandard [Member] | Non ASC 310-30 [Member] | Owner-Occupied [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	5,490	5,294	'
Total Loans [Member] | Substandard [Member] | Non ASC 310-30 [Member] | Non Owner-Occupied [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	4,214	4,837	'
Total Loans [Member] | Substandard [Member] | Non ASC 310-30 [Member] | Total Commercial Real Estate [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	15,201	15,606	'
Total Loans [Member] | Substandard [Member] | Non ASC 310-30 [Member] | Agriculture [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	9,819	687	'
Total Loans [Member] | Substandard [Member] | Non ASC 310-30 [Member] | Sr lien [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	7,497	7,620	'
Total Loans [Member] | Substandard [Member] | Non ASC 310-30 [Member] | Jr Liens [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	2,182	2,248	'
Total Loans [Member] | Substandard [Member] | Non ASC 310-30 [Member] | Residential Real Estate Segment [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	9,679	9,868	'
Total Loans [Member] | Substandard [Member] | Non ASC 310-30 [Member] | Consumer [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	227	251	'
Total Loans [Member] | Substandard [Member] | Non ASC 310-30 [Member] | Covered loans excluded from ASC 310-30 [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	23,177	24,005	'
Total Loans [Member] | Substandard [Member] | Non ASC 310-30 [Member] | Non-covered loans excluded from ASC 310-30 [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	47,430	39,821	'
Total Loans [Member] | Substandard [Member] | Non ASC 310-30 [Member] | Commercial Loan [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	35,681	37,414	'
Total Loans [Member] | Substandard [Member] | ASC 310-30 [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	195,980	215,175	'
Total Loans [Member] | Substandard [Member] | ASC 310-30 [Member] | Agriculture [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	2,587	3,983	'
Total Loans [Member] | Substandard [Member] | ASC 310-30 [Member] | Residential Real Estate Segment [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	16,741	18,009	'
Total Loans [Member] | Substandard [Member] | ASC 310-30 [Member] | Consumer [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	785	995	'
Total Loans [Member] | Substandard [Member] | ASC 310-30 [Member] | Commercial Loan [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	33,101	34,440	'
Total Loans [Member] | Substandard [Member] | ASC 310-30 [Member] | Commercial Real Estate [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	142,766	157,748	'
Total Loans [Member] | Substandard [Member] | ASC 310-30 [Member] | Covered loans accounted for under ASC Topic 310-30 [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	142,785	145,041	'
Total Loans [Member] | Substandard [Member] | ASC 310-30 [Member] | Non-covered loans accounted for under ASC Topic 310-30 [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	53,195	70,134	'
Total Loans [Member] | Doubtful [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	6,376	6,645	'
Total Loans [Member] | Doubtful [Member] | Non ASC 310-30 [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	617	870	'
Total Loans [Member] | Doubtful [Member] | Non ASC 310-30 [Member] | Commercial Construction [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	0	0	'
Total Loans [Member] | Doubtful [Member] | Non ASC 310-30 [Member] | Commercial Acquisition/Development [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	0	0	'
Total Loans [Member] | Doubtful [Member] | Non ASC 310-30 [Member] | Multifamily [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	25	28	'
Total Loans [Member] | Doubtful [Member] | Non ASC 310-30 [Member] | Owner-Occupied [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	0	0	'
Total Loans [Member] | Doubtful [Member] | Non ASC 310-30 [Member] | Non Owner-Occupied [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	0	0	'
Total Loans [Member] | Doubtful [Member] | Non ASC 310-30 [Member] | Total Commercial Real Estate [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	25	28	'
Total Loans [Member] | Doubtful [Member] | Non ASC 310-30 [Member] | Agriculture [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	0	0	'
Total Loans [Member] | Doubtful [Member] | Non ASC 310-30 [Member] | Sr lien [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	408	435	'
Total Loans [Member] | Doubtful [Member] | Non ASC 310-30 [Member] | Jr Liens [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	0	0	'
Total Loans [Member] | Doubtful [Member] | Non ASC 310-30 [Member] | Residential Real Estate Segment [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	408	435	'
Total Loans [Member] | Doubtful [Member] | Non ASC 310-30 [Member] | Consumer [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	0	0	'
Total Loans [Member] | Doubtful [Member] | Non ASC 310-30 [Member] | Covered loans excluded from ASC 310-30 [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	473	414	'
Total Loans [Member] | Doubtful [Member] | Non ASC 310-30 [Member] | Non-covered loans excluded from ASC 310-30 [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	144	456	'
Total Loans [Member] | Doubtful [Member] | Non ASC 310-30 [Member] | Commercial Loan [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	184	407	'
Total Loans [Member] | Doubtful [Member] | ASC 310-30 [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	5,759	5,775	'
Total Loans [Member] | Doubtful [Member] | ASC 310-30 [Member] | Agriculture [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	0	0	'
Total Loans [Member] | Doubtful [Member] | ASC 310-30 [Member] | Residential Real Estate Segment [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	0	0	'
Total Loans [Member] | Doubtful [Member] | ASC 310-30 [Member] | Consumer [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	0	0	'
Total Loans [Member] | Doubtful [Member] | ASC 310-30 [Member] | Commercial Loan [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	698	721	'
Total Loans [Member] | Doubtful [Member] | ASC 310-30 [Member] | Commercial Real Estate [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	5,061	5,054	'
Total Loans [Member] | Doubtful [Member] | ASC 310-30 [Member] | Covered loans accounted for under ASC Topic 310-30 [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	5,759	5,775	'
Total Loans [Member] | Doubtful [Member] | ASC 310-30 [Member] | Non-covered loans accounted for under ASC Topic 310-30 [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	0	0	'
Total Loans [Member] | Covered [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	287,590	309,397	'
Total Loans [Member] | Covered [Member] | Pass [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	106,404	122,225	'
Total Loans [Member] | Covered [Member] | Special Mention [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	8,992	11,937	'
Total Loans [Member] | Covered [Member] | Substandard [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	165,962	169,046	'
Total Loans [Member] | Covered [Member] | Doubtful [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	6,232	6,189	'
Total Loans [Member] | Non-Covered [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	1,674,002	1,544,697	'
Total Loans [Member] | Non-Covered [Member] | Pass [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	1,542,289	1,386,472	'
Total Loans [Member] | Non-Covered [Member] | Special Mention [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	30,944	47,814	'
Total Loans [Member] | Non-Covered [Member] | Substandard [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	100,625	109,955	'
Total Loans [Member] | Non-Covered [Member] | Doubtful [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	144	456	'
Total Loans [Member] | Covered And Non-covered [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	1,961,592	1,854,094	'
Total Loans [Member] | Covered And Non-covered [Member] | Pass [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	1,648,693	1,508,697	'
Total Loans [Member] | Covered And Non-covered [Member] | Special Mention [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	39,936	59,751	'
Total Loans [Member] | Covered And Non-covered [Member] | Substandard [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	266,587	279,001	'
Total Loans [Member] | Covered And Non-covered [Member] | Doubtful [Member]	'	'	'
Loans [Line Items]	'	'	'
Total Loans	$6,376	$6,645	'

Loans_Additional_Information_R

Loans - (Additional Information Regarding Impaired Loans) (Detail) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Loans [Line Items]	'	'
Unpaid principal balance, Total	$35,461	$23,522
Recorded Investment In Acquired Impaired Loans	33,103	21,647
Loans and Leases Receivable, Allowance	679	946
Commercial Loan [Member]	'	'
Loans [Line Items]	'	'
Unpaid principal balance with no related allowance recorded	7,024	4,981
Recorded investment with no related allowance recorded	7,015	4,981
Allowance for loan losses allocated with no related allowance recorded	0	0
Unpaid principal balance of impaired loans with an allowance recorded	2,545	2,529
Recorded investment of impaired loans with an allowance recorded	2,046	2,379
Allowance for loan losses allocated with an allowance recorded	190	416
Commercial Construction [Member]	'	'
Loans [Line Items]	'	'
Unpaid principal balance with no related allowance recorded	0	0
Recorded investment with no related allowance recorded	0	0
Allowance for loan losses allocated with no related allowance recorded	0	0
Unpaid principal balance of impaired loans with an allowance recorded	0	0
Recorded investment of impaired loans with an allowance recorded	0	0
Allowance for loan losses allocated with an allowance recorded	0	0
Commercial Acquisition/Development [Member]	'	'
Loans [Line Items]	'	'
Unpaid principal balance with no related allowance recorded	398	0
Recorded investment with no related allowance recorded	398	0
Allowance for loan losses allocated with no related allowance recorded	0	0
Unpaid principal balance of impaired loans with an allowance recorded	0	0
Recorded investment of impaired loans with an allowance recorded	0	1
Allowance for loan losses allocated with an allowance recorded	0	0
Multifamily [Member]	'	'
Loans [Line Items]	'	'
Unpaid principal balance with no related allowance recorded	972	987
Recorded investment with no related allowance recorded	898	929
Allowance for loan losses allocated with no related allowance recorded	0	0
Unpaid principal balance of impaired loans with an allowance recorded	173	178
Recorded investment of impaired loans with an allowance recorded	162	168
Allowance for loan losses allocated with an allowance recorded	25	28
Owner-Occupied [Member]	'	'
Loans [Line Items]	'	'
Unpaid principal balance with no related allowance recorded	1,826	1,872
Recorded investment with no related allowance recorded	1,606	1,655
Allowance for loan losses allocated with no related allowance recorded	0	0
Unpaid principal balance of impaired loans with an allowance recorded	1,109	825
Recorded investment of impaired loans with an allowance recorded	873	607
Allowance for loan losses allocated with an allowance recorded	5	4
Non Owner-Occupied [Member]	'	'
Loans [Line Items]	'	'
Unpaid principal balance with no related allowance recorded	548	561
Recorded investment with no related allowance recorded	475	488
Allowance for loan losses allocated with no related allowance recorded	0	0
Unpaid principal balance of impaired loans with an allowance recorded	634	640
Recorded investment of impaired loans with an allowance recorded	623	628
Allowance for loan losses allocated with an allowance recorded	2	4
Total Commercial Real Estate [Member]	'	'
Loans [Line Items]	'	'
Unpaid principal balance with no related allowance recorded	3,744	3,420
Recorded investment with no related allowance recorded	3,377	3,072
Allowance for loan losses allocated with no related allowance recorded	0	0
Unpaid principal balance of impaired loans with an allowance recorded	1,916	1,643
Recorded investment of impaired loans with an allowance recorded	1,658	1,404
Allowance for loan losses allocated with an allowance recorded	32	36
Agriculture [Member]	'	'
Loans [Line Items]	'	'
Unpaid principal balance with no related allowance recorded	9,143	0
Recorded investment with no related allowance recorded	9,132	0
Allowance for loan losses allocated with no related allowance recorded	0	0
Unpaid principal balance of impaired loans with an allowance recorded	194	191
Recorded investment of impaired loans with an allowance recorded	174	173
Allowance for loan losses allocated with an allowance recorded	1	1
Sr Lien 1-4 Family Closed End [Member]	'	'
Loans [Line Items]	'	'
Unpaid principal balance with no related allowance recorded	720	506
Recorded investment with no related allowance recorded	700	494
Allowance for loan losses allocated with no related allowance recorded	0	0
Unpaid principal balance of impaired loans with an allowance recorded	8,136	8,147
Recorded investment of impaired loans with an allowance recorded	7,197	7,266
Allowance for loan losses allocated with an allowance recorded	438	474
Jr Lien 1-4 Family Closed End [Member]	'	'
Loans [Line Items]	'	'
Unpaid principal balance with no related allowance recorded	0	0
Recorded investment with no related allowance recorded	0	0
Allowance for loan losses allocated with no related allowance recorded	0	0
Unpaid principal balance of impaired loans with an allowance recorded	1,769	1,815
Recorded investment of impaired loans with an allowance recorded	1,555	1,605
Allowance for loan losses allocated with an allowance recorded	15	16
Residential Real Estate Segment [Member]	'	'
Loans [Line Items]	'	'
Unpaid principal balance with no related allowance recorded	720	506
Recorded investment with no related allowance recorded	700	494
Allowance for loan losses allocated with no related allowance recorded	0	0
Unpaid principal balance of impaired loans with an allowance recorded	9,905	9,962
Recorded investment of impaired loans with an allowance recorded	8,752	8,871
Allowance for loan losses allocated with an allowance recorded	453	490
Consumer [Member]	'	'
Loans [Line Items]	'	'
Unpaid principal balance with no related allowance recorded	0	0
Recorded investment with no related allowance recorded	0	0
Allowance for loan losses allocated with no related allowance recorded	0	0
Unpaid principal balance of impaired loans with an allowance recorded	270	290
Recorded investment of impaired loans with an allowance recorded	249	273
Allowance for loan losses allocated with an allowance recorded	3	3
Impaired Loans With No Related Allowance Recorded [Member] [Member]	'	'
Loans [Line Items]	'	'
Unpaid principal balance with no related allowance recorded	20,631	8,907
Recorded investment with no related allowance recorded	20,224	8,547
Allowance for loan losses allocated with no related allowance recorded	0	0
Impaired Loans with Related Allowance Recorded [Member]	'	'
Loans [Line Items]	'	'
Unpaid principal balance of impaired loans with an allowance recorded	14,830	14,615
Recorded investment of impaired loans with an allowance recorded	12,879	13,100
Allowance for loan losses allocated with an allowance recorded	$679	$946

Loans_Impaired_Loans_Average_R

Loans (Impaired Loans - Average Recorded Investment and Interest Income Recognized) (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Loans [Line Items]	'	'
Impaired Financing Receivable, Average Recorded Investment	$33,821	$37,591
Impaired Financing Receivable, Interest Income, Cash Basis Method	320	260
Commercial Loan [Member]	'	'
Loans [Line Items]	'	'
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	7,562	11,033
Impaired Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method	94	128
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	2,113	3,172
Impaired Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method	12	3
Commercial Construction [Member]	'	'
Loans [Line Items]	'	'
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	0	0
Impaired Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method	0	0
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	0	0
Impaired Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method	0	0
Commercial Acquisition/Development [Member]	'	'
Loans [Line Items]	'	'
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	398	0
Impaired Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method	5	0
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	0	15
Impaired Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method	0	0
Multifamily [Member]	'	'
Loans [Line Items]	'	'
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	908	0
Impaired Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method	0	0
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	165	196
Impaired Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method	0	0
Owner-Occupied [Member]	'	'
Loans [Line Items]	'	'
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	1,622	5,036
Impaired Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method	26	80
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	879	763
Impaired Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method	3	4
Non Owner-Occupied [Member]	'	'
Loans [Line Items]	'	'
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	480	1,862
Impaired Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method	8	5
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	625	6,544
Impaired Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method	7	3
Total Commercial Real Estate [Member]	'	'
Loans [Line Items]	'	'
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	3,408	6,898
Impaired Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method	39	85
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	1,669	7,518
Impaired Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method	10	7
Agriculture [Member]	'	'
Loans [Line Items]	'	'
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	9,132	0
Impaired Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method	119	0
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	177	240
Impaired Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method	0	0
Sr Lien 1-4 Family Closed End [Member]	'	'
Loans [Line Items]	'	'
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	701	364
Impaired Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method	4	1
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	7,243	6,791
Impaired Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method	27	21
Jr Lien 1-4 Family Closed End [Member]	'	'
Loans [Line Items]	'	'
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	0	0
Impaired Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method	0	0
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	1,566	1,096
Impaired Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method	15	11
Residential Real Estate Segment [Member]	'	'
Loans [Line Items]	'	'
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	701	364
Impaired Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method	4	1
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	8,809	7,887
Impaired Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method	42	32
Consumer [Member]	'	'
Loans [Line Items]	'	'
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	0	0
Impaired Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method	0	0
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	250	479
Impaired Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method	0	4
Impaired Loans With No Related Allowance Recorded [Member] [Member]	'	'
Loans [Line Items]	'	'
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	20,803	18,295
Impaired Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method	256	214
Impaired Loans with Related Allowance Recorded [Member]	'	'
Loans [Line Items]	'	'
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	13,018	19,296
Impaired Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method	$64	$46

Loans_Troubled_Debt_Restructur

Loans - Troubled Debt Restructuring and Loans Accounted for Under ASC Topic 310-30 Narratives (Details) (USD $)

3 Months Ended

3 Months Ended

3 Months Ended

12 Months Ended

3 Months Ended

Mar. 31, 2014

Mar. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Mar. 31, 2014

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Mar. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

SecurityLoan

SecurityLoan

Troubled Debt Restructurings [Member]

Troubled Debt Restructurings [Member]

Troubled Debt Restructurings [Member]

FDIC Covered [Member]

FDIC Covered [Member]

Agriculture and Consumer Loans [Member]

Commercial And Industrial Loan, A Commercial Real Estate Loan, And A Single Family Residential Loan [Member]

Accrual Status [Member]

Accrual Status [Member]

Covered Loan [Member]

Covered Loan [Member]

Covered Loan [Member]

Covered Loan [Member]

SecurityLoan

Non Accrual [Member]

Non Accrual [Member]

Non Accrual Status [Member]

Non Accrual Status [Member]

Debt Instrument [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Accretable yield related for loan pool

$119,298,000

$127,215,000

$130,624,000

$133,585,000

'

'

'

'

'

'

'

'

'

'

'

'

'

TDRbs modified within the past year that defaulted on their restructured terms

2

3

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Accruing troubled debt restructurings

'

'

'

'

'

'

'

4,700,000

5,700,000

'

'

'

'

'

'

'

'

Carrying amount of loan investments

1,961,592,000

1,765,450,000

1,854,094,000

'

'

3,600,000

3,600,000

'

'

'

'

'

'

287,590,000

309,397,000

'

'

Troubled Debt Restructuring Nonaccrual Loans

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1,662,000

1,673,000

Number of restructured loans

'

'

'

'

8

'

'

'

'

'

'

'

'

'

'

'

'

Recorded investment

'

'

'

'

12,500,000

'

'

'

'

'

'

22,520,000

11,605,000

'

'

'

'

Financing Receivable, Modifications, Subsequent Default, Recorded Investment

'

'

'

'

'

'

'

'

'

$26,000

$2,800,000

'

'

'

'

'

'

Loans_Additional_Information_R1

Loans - (Additional Information Related to Accruing TDR's) (Detail) (Accruing TDR [Member], USD $)	3 Months Ended	12 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Loans [Line Items]	'	'
Recorded investment	$22,520	$11,605
Average year-to- date recorded investment	23,118	12,977
Unpaid principal balance	22,829	11,897
Unfunded commitments to fund TDRs	117	168
Commercial [Member]	'	'
Loans [Line Items]	'	'
Recorded investment	8,069	6,079
Average year-to- date recorded investment	8,631	7,113
Unpaid principal balance	8,082	6,084
Unfunded commitments to fund TDRs	0	144
Commercial Real Estate [Member]	'	'
Loans [Line Items]	'	'
Recorded investment	2,818	2,484
Average year-to- date recorded investment	2,839	2,759
Unpaid principal balance	3,075	2,743
Unfunded commitments to fund TDRs	0	0
Agriculture [Member]	'	'
Loans [Line Items]	'	'
Recorded investment	8,767	20
Average year-to- date recorded investment	8,767	20
Unpaid principal balance	8,778	20
Unfunded commitments to fund TDRs	105	0
Residential Real Estate Segment [Member]	'	'
Loans [Line Items]	'	'
Recorded investment	2,841	2,995
Average year-to- date recorded investment	2,856	3,055
Unpaid principal balance	2,869	3,023
Unfunded commitments to fund TDRs	12	12
Consumer [Member]	'	'
Loans [Line Items]	'	'
Recorded investment	25	27
Average year-to- date recorded investment	25	30
Unpaid principal balance	25	27
Unfunded commitments to fund TDRs	$0	$12

Loans_Summary_of_Companys_Carr

Loans - (Summary of Company's Carrying Value of Non-Accrual TDR's) (Detail) (Non-Accruing TDR [Member], USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Covered [Member]	'	'
Loans [Line Items]	'	'
Carrying Value of Non - Accruing TDRbs	$1,662	$1,673
Covered [Member] | Commercial [Member]	'	'
Loans [Line Items]	'	'
Carrying Value of Non - Accruing TDRbs	30	0
Covered [Member] | Commercial Real Estate [Member]	'	'
Loans [Line Items]	'	'
Carrying Value of Non - Accruing TDRbs	283	296
Covered [Member] | Agriculture [Member]	'	'
Loans [Line Items]	'	'
Carrying Value of Non - Accruing TDRbs	0	0
Covered [Member] | Residential Real Estate Segment [Member]	'	'
Loans [Line Items]	'	'
Carrying Value of Non - Accruing TDRbs	1,349	1,377
Covered [Member] | Consumer [Member]	'	'
Loans [Line Items]	'	'
Carrying Value of Non - Accruing TDRbs	0	0
Non-Covered [Member]	'	'
Loans [Line Items]	'	'
Carrying Value of Non - Accruing TDRbs	1,936	1,901
Non-Covered [Member] | Commercial [Member]	'	'
Loans [Line Items]	'	'
Carrying Value of Non - Accruing TDRbs	497	535
Non-Covered [Member] | Commercial Real Estate [Member]	'	'
Loans [Line Items]	'	'
Carrying Value of Non - Accruing TDRbs	92	98
Non-Covered [Member] | Agriculture [Member]	'	'
Loans [Line Items]	'	'
Carrying Value of Non - Accruing TDRbs	18	0
Non-Covered [Member] | Residential Real Estate Segment [Member]	'	'
Loans [Line Items]	'	'
Carrying Value of Non - Accruing TDRbs	1,105	1,031
Non-Covered [Member] | Consumer [Member]	'	'
Loans [Line Items]	'	'
Carrying Value of Non - Accruing TDRbs	$224	$237

Loans_ReMeasurement_of_Loans_A

Loans - (Re-Measurement of Loans Accounted for Under ASC Topic 310-30 Resulting in Changes in Carrying Amount of Accretable Yield) (Detail) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Certain Loans Acquired in Transfer Accounted for as Debt Securities, Accretable Yield Movement Schedule [Roll Forward]	'	'
Accretable yield beginning balance	$130,624	$133,585
Reclassification from non-accretable difference	6,164	16,134
Reclassification to non-accretable difference	-590	-1,202
Accretion	-16,900	-21,302
Accretable yield ending balance	$119,298	$127,215

Loans_Composition_of_Net_Book_

Loans - (Composition of Net Book Value for Loans Accounted for under ASC Topic 310-30) (Detail) (USD $)	3 Months Ended	12 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Receivables [Abstract]	'	'
Contractual cash flows	$922,774	$984,019
Non-accretable difference	-396,930	-402,515
Accretable yield	-119,298	-130,624
Loans accounted for under ASC 310-30	$406,546	$450,880

Allowance_for_Loan_Losses_Summ

Allowance for Loan Losses - (Summary of Company's Allowance for Loan Losses ("All") and Recorded Investment in Loans) (Detail) (USD $)

3 Months Ended

3 Months Ended

3 Months Ended

3 Months Ended

3 Months Ended

3 Months Ended

3 Months Ended

3 Months Ended

3 Months Ended

3 Months Ended

3 Months Ended

3 Months Ended

3 Months Ended

3 Months Ended

3 Months Ended

Mar. 31, 2014

Mar. 31, 2013

Dec. 31, 2013

Mar. 31, 2014

Mar. 31, 2013

Dec. 31, 2013

Mar. 31, 2014

Mar. 31, 2013

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2013

Dec. 31, 2012

Mar. 31, 2014

Mar. 31, 2013

Dec. 31, 2013

Mar. 31, 2014

Mar. 31, 2013

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2013

Dec. 31, 2012

Mar. 31, 2014

Mar. 31, 2013

Dec. 31, 2013

Mar. 31, 2014

Mar. 31, 2013

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2013

Dec. 31, 2012

Mar. 31, 2014

Mar. 31, 2013

Dec. 31, 2013

Mar. 31, 2014

Mar. 31, 2013

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2013

Dec. 31, 2012

Mar. 31, 2014

Mar. 31, 2013

Dec. 31, 2013

Mar. 31, 2014

Mar. 31, 2013

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2013

Dec. 31, 2012

Mar. 31, 2014

Mar. 31, 2013

Dec. 31, 2013

Mar. 31, 2014

Mar. 31, 2013

Dec. 31, 2013

Non ASC 310-30 [Member]

Non ASC 310-30 [Member]

Non ASC 310-30 [Member]

ASC 310-30 [Member]

ASC 310-30 [Member]

ASC 310-30 [Member]

Commercial Loan [Member]

Commercial Loan [Member]

Commercial Loan [Member]

Commercial Loan [Member]

Commercial Loan [Member]

Commercial Loan [Member]

Commercial Loan [Member]

Commercial Loan [Member]

Commercial Loan [Member]

Commercial Loan [Member]

Commercial Real Estate [Member]

Commercial Real Estate [Member]

Commercial Real Estate [Member]

Commercial Real Estate [Member]

Commercial Real Estate [Member]

Commercial Real Estate [Member]

Commercial Real Estate [Member]

Commercial Real Estate [Member]

Commercial Real Estate [Member]

Commercial Real Estate [Member]

Agriculture [Member]

Agriculture [Member]

Agriculture [Member]

Agriculture [Member]

Agriculture [Member]

Agriculture [Member]

Agriculture [Member]

Agriculture [Member]

Agriculture [Member]

Agriculture [Member]

Residential Real Estate Segment [Member]

Residential Real Estate Segment [Member]

Residential Real Estate Segment [Member]

Residential Real Estate Segment [Member]

Residential Real Estate Segment [Member]

Residential Real Estate Segment [Member]

Residential Real Estate Segment [Member]

Residential Real Estate Segment [Member]

Residential Real Estate Segment [Member]

Residential Real Estate Segment [Member]

Consumer [Member]

Consumer [Member]

Consumer [Member]

Consumer [Member]

Consumer [Member]

Consumer [Member]

Consumer [Member]

Consumer [Member]

Consumer [Member]

Consumer [Member]

Non ASC 310-30 [Member]

Non ASC 310-30 [Member]

Non ASC 310-30 [Member]

ASC 310-30 [Member]

ASC 310-30 [Member]

ASC 310-30 [Member]

Non ASC 310-30 [Member]

Non ASC 310-30 [Member]

Non ASC 310-30 [Member]

ASC 310-30 [Member]

ASC 310-30 [Member]

ASC 310-30 [Member]

Non ASC 310-30 [Member]

Non ASC 310-30 [Member]

Non ASC 310-30 [Member]

ASC 310-30 [Member]

ASC 310-30 [Member]

ASC 310-30 [Member]

Non ASC 310-30 [Member]

Non ASC 310-30 [Member]

Non ASC 310-30 [Member]

ASC 310-30 [Member]

ASC 310-30 [Member]

ASC 310-30 [Member]

Non ASC 310-30 [Member]

Non ASC 310-30 [Member]

Non ASC 310-30 [Member]

ASC 310-30 [Member]

ASC 310-30 [Member]

ASC 310-30 [Member]

Allowance for Loan and Lease Losses [Roll Forward]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Beginning balance

$12,521,000

$15,380,000

'

$11,241,000

$10,728,000

'

$1,280,000

$4,652,000

'

$5,724,000

$4,258,000

$3,286,000

$2,798,000

$4,029,000

$2,798,000

'

$229,000

$0

'

$2,276,000

'

$2,975,000

$7,396,000

$1,984,000

$3,056,000

'

$292,000

$4,340,000

'

$1,213,000

$1,237,000

$793,000

$592,000

$572,000

$323,000

'

$665,000

$269,000

'

$4,259,000

'

$5,342,000

$4,011,000

$4,165,000

$4,011,000

'

$94,000

$0

'

$588,000

$491,000

$493,000

$583,000

$491,000

$540,000

'

$0

$43,000

'

Charge-offs

'

'

'

-577,000

-1,196,000

'

-2,000

-2,812,000

'

'

'

'

'

-386,000

-629,000

'

-2,000

0

'

'

'

'

'

0

-259,000

'

0

-2,812,000

'

'

'

'

'

0

0

'

0

0

'

'

'

'

'

-20,000

-75,000

'

0

0

'

'

'

'

'

-171,000

-233,000

'

0

0

'

Recoveries

'

'

'

261,000

100,000

'

0

0

'

'

'

'

'

58,000

9,000

'

0

0

'

'

'

'

'

37,000

0

'

0

0

'

'

'

'

'

0

0

'

0

0

'

'

'

'

'

90,000

14,000

'

0

0

'

'

'

'

'

76,000

77,000

'

0

0

'

Provision for loan losses

-1,769,000

-1,417,000

'

1,823,000

1,108,000

'

-54,000

309,000

'

'

'

'

'

1,880,000

697,000

'

-84,000

411,000

'

-56,000

'

'

'

-44,000

-305,000

'

'

-1,045,000

'

'

'

'

'

-24,000

201,000

'

0

0

'

-29,000

'

'

'

-66,000

406,000

'

'

986,000

'

'

'

'

'

77,000

109,000

'

115,000

-43,000

'

Ending balance

13,972,000

12,889,000

'

12,748,000

10,740,000

'

1,224,000

2,149,000

'

5,724,000

4,258,000

3,286,000

2,798,000

5,581,000

2,875,000

'

143,000

411,000

'

2,213,000

'

2,975,000

7,396,000

1,977,000

2,492,000

'

236,000

483,000

'

1,213,000

1,237,000

793,000

592,000

548,000

524,000

'

665,000

269,000

'

4,234,000

'

5,342,000

4,011,000

4,169,000

4,356,000

'

65,000

986,000

'

588,000

491,000

493,000

583,000

473,000

493,000

'

115,000

0

'

Ending allowance balance individually evaluated for impairment

'

'

'

679,000

2,231,000

'

'

'

'

'

'

'

'

190,000

1,125,000

'

'

'

'

'

'

'

'

32,000

371,000

'

'

'

'

'

'

'

'

1,000

1,000

'

'

'

'

'

'

'

'

453,000

721,000

'

'

'

'

'

'

'

'

3,000

13,000

'

'

'

'

Ending allowance balance collectively evaluated for impairment

'

'

'

12,069,000

8,509,000

'

'

'

'

'

'

'

'

5,391,000

1,750,000

'

'

'

'

'

'

'

'

1,945,000

2,121,000

'

'

'

'

'

'

'

'

547,000

523,000

'

'

'

'

'

'

'

'

3,716,000

3,635,000

'

'

'

'

'

'

'

'

470,000

480,000

'

'

'

'

Ending allowance balance

'

'

'

'

'

'

1,224,000

2,149,000

'

'

'

'

'

'

'

'

143,000

411,000

'

'

'

'

'

'

'

'

236,000

483,000

'

'

'

'

'

'

'

'

665,000

269,000

'

'

'

'

'

'

'

'

65,000

986,000

'

'

'

'

'

'

'

'

115,000

0

'

Total ending allowance balance

13,972,000

12,889,000

'

12,748,000

10,740,000

'

1,224,000

2,149,000

'

5,724,000

4,258,000

3,286,000

2,798,000

5,581,000

2,875,000

'

143,000

411,000

'

2,213,000

'

2,975,000

7,396,000

1,977,000

2,492,000

'

236,000

483,000

'

1,213,000

1,237,000

793,000

592,000

548,000

524,000

'

665,000

269,000

'

4,234,000

'

5,342,000

4,011,000

4,169,000

4,356,000

'

65,000

986,000

'

588,000

491,000

493,000

583,000

473,000

493,000

'

115,000

0

'

Loans individually evaluated for impairment

'

'

'

33,103,000

36,605,000

'

'

'

'

'

'

'

'

9,061,000

13,381,000

'

'

'

'

'

'

'

'

5,035,000

14,314,000

'

'

'

'

'

'

'

'

9,306,000

227,000

'

'

'

'

'

'

'

'

9,452,000

8,214,000

'

'

'

'

'

'

'

'

249,000

469,000

'

'

'

'

Loans collectively evaluated for impairment

'

'

'

1,521,943,000

998,596,000

'

'

'

'

'

'

'

'

521,401,000

172,421,000

'

'

'

'

'

'

'

'

312,102,000

241,818,000

'

'

'

'

'

'

'

'

122,280,000

117,930,000

'

'

'

'

'

'

'

'

539,306,000

437,971,000

'

'

'

'

'

'

'

'

26,854,000

28,456,000

'

'

'

'

Loans

'

'

'

'

'

'

406,546,000

730,249,000

'

'

'

'

'

'

'

'

52,107,000

78,928,000

'

'

'

'

'

'

'

'

263,608,000

490,608,000

'

'

'

'

'

'

'

'

23,545,000

46,580,000

'

'

'

'

'

'

'

'

60,467,000

101,386,000

'

'

'

'

'

'

'

'

6,819,000

12,747,000

'

Total Loans

$1,961,592,000

$1,765,450,000

$1,854,094,000

$1,555,046,000

'

$1,403,214,000

$406,546,000

'

$450,880,000

$582,569,000

$483,495,000

$264,730,000

'

$530,462,000

'

$421,984,000

$52,107,000

'

$61,511,000

$580,745,000

$574,220,000

$746,740,000

'

$317,137,000

'

$283,022,000

$263,608,000

'

$291,198,000

$155,131,000

$159,952,000

$164,737,000

'

$131,586,000

'

$132,952,000

$23,545,000

'

$27,000,000

$609,225,000

$599,924,000

$547,571,000

'

$548,758,000

'

$536,913,000

$60,467,000

'

$63,011,000

$33,922,000

$36,503,000

$41,672,000

'

$27,103,000

'

$28,343,000

$6,819,000

'

$8,160,000

Allowance_for_Loan_Losses_Narr

Allowance for Loan Losses - (Narrative) (Detail) (USD $)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Allowance For Loan And Lease Losses [Line Items]	'	'
Company charged off, net of recoveries	($300,000)	'
Provision for loan losses	1,769,000	1,417,000
Commercial Real Estate [Member]	'	'
Allowance For Loan And Lease Losses [Line Items]	'	'
Company charged off, net of recoveries	'	-300,000
Provision for loan losses	56,000	'
Residential Real Estate Segment [Member]	'	'
Allowance For Loan And Lease Losses [Line Items]	'	'
Provision for loan losses	29,000	'
Consumer Loan [Member]	'	'
Allowance For Loan And Lease Losses [Line Items]	'	'
Company charged off, net of recoveries	'	-200,000
Non ASC 310-30 [Member]	'	'
Allowance For Loan And Lease Losses [Line Items]	'	'
Company charged off, net of recoveries	'	-1,100,000
Provision for loan losses	-1,823,000	-1,108,000
Non ASC 310-30 [Member] | Commercial Loan [Member]	'	'
Allowance For Loan And Lease Losses [Line Items]	'	'
Provision for loan losses	-1,880,000	-697,000
Non ASC 310-30 [Member] | Commercial and Industrial Pool [Member]	'	'
Allowance For Loan And Lease Losses [Line Items]	'	'
Company charged off, net of recoveries	'	-600,000
Non ASC 310-30 [Member] | Commercial Real Estate [Member]	'	'
Allowance For Loan And Lease Losses [Line Items]	'	'
Provision for loan losses	44,000	305,000
Non ASC 310-30 [Member] | Residential Real Estate Segment [Member]	'	'
Allowance For Loan And Lease Losses [Line Items]	'	'
Provision for loan losses	66,000	-406,000
Non ASC 310-30 [Member] | Consumer Loan [Member]	'	'
Allowance For Loan And Lease Losses [Line Items]	'	'
Provision for loan losses	-77,000	-109,000
ASC 310-30 [Member]	'	'
Allowance For Loan And Lease Losses [Line Items]	'	'
Provision for loan losses	54,000	-309,000
ASC 310-30 [Member] | Commercial Loan [Member]	'	'
Allowance For Loan And Lease Losses [Line Items]	'	'
Provision for loan losses	84,000	-411,000
ASC 310-30 [Member] | Commercial Real Estate [Member]	'	'
Allowance For Loan And Lease Losses [Line Items]	'	'
Provision for loan losses	'	1,045,000
ASC 310-30 [Member] | Residential Real Estate Segment [Member]	'	'
Allowance For Loan And Lease Losses [Line Items]	'	'
Provision for loan losses	'	-986,000
ASC 310-30 [Member] | Consumer Loan [Member]	'	'
Allowance For Loan And Lease Losses [Line Items]	'	'
Provision for loan losses	($115,000)	$43,000

FDIC_Indemnification_Asset_Sum

FDIC Indemnification Asset - (Summary of Activity Related to FDIC Indemnification Asset) (Detail) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
FDIC Indemnification Asset [Roll Forward]	'	'
Balance at beginning of period	$64,447	$86,923
Amortization	-7,608	-4,669
FDIC portion of (recoveries) charge-offs exceeding fair value marks	-133	2,576
Decrease In Carrying Value Of Fdic Indemnification Asset	-29	-9,132
Balance at end of period	$56,677	$75,698

FDIC_Indemnification_Asset_Nar

FDIC Indemnification Asset - (Narrative) (Detail) (USD $)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Banking and Thrift [Abstract]	'	'
Negative accretion on the FDIC indemnification asset	($7,608,000)	($4,669,000)
Decrease in carrying value of FDIC indemnification asset	-29,000	-9,132,000
Payment received from FDIC related to losses incurred	$29,000	$57,900,000

Other_Real_Estate_Owned_Summar

Other Real Estate Owned - (Summary of Activity in OREO Balances) (Detail) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Other Real Estate [Roll Forward]	'	'
Balance	$70,125	$94,808
Transfers from loan portfolio, at fair value	236	17,043
Impairments	-822	-4,600
Sales	-4,143	-25,726
Gain on sale of OREO, net	587	1,805
Balance	$65,983	$83,330

Other_Real_Estate_Owned_Narrat

Other Real Estate Owned - (Narrative) (Detail) (USD $)	3 Months Ended	12 Months Ended
	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2013	Dec. 31, 2012
Banking and Thrift [Abstract]	'	'	'	'
OREO balance	$65,983,000	$70,125,000	$83,330,000	$94,808,000
Interests of several outside participating banks	4,200,000	4,200,000	'	'
Minority interests in OREO which are held by outside banks	10,600,000	10,600,000	'	'
Percentage covered by the loss sharing agreements with the FDIC	55.40%	55.40%	'	'
Amount covered by the loss sharing agreements with the FDIC	$36,600,000	$38,800,000	'	'

Regulatory_Capital_Capital_Rat

Regulatory Capital - (Capital Ratio Requirements under Prompt Corrective Action or Other Regulatory Requirements) (Detail) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Minimum [Member]	'	'
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]	'	'
Risk-based capital computations	20.00%	'
Consolidated [Member]	'	'
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]	'	'
Leverage Ratio	16.80%	16.60%
Risk-based capital Ratio	36.80%	38.90%
Total risk-based capital Ratio	37.50%	39.50%
Leverage Amount	$814,857	$822,688
Risk-based capital amount	814,857	822,688
Total risk-based capital Amount	829,230	835,810
Required to be considered well capitalized Ratio, risk-based capital ratio	6.00%	6.00%
Required to be considered well capitalized Ratio, Total risk-based capital ratio	10.00%	10.00%
Required to be considered well capitalized risk-based capital Amount	132,791	126,865
Required to be considered well capitalized Total risk-based capital Amount	221,319	211,442
Required to be considered adequately capitalized Ratio, leverage ratio	4.00%	4.00%
Required to be considered adequately capitalized Ratio, risk-based capital ratio	4.00%	4.00%
Required to be considered adequately capitalized Ratio, Total risk-based capital ratio	8.00%	8.00%
Required to be considered adequately capitalized leverage Amount	193,915	197,906
Required to be considered adequately capitalized risk-based capital Amount	88,528	84,577
Required to be considered adequately capitalized Total risk-based capital Amount	177,055	169,153
NBH Bank, N.A. [Member]	'	'
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]	'	'
Leverage Ratio	11.60%	11.30%
Risk-based capital Ratio	25.50%	26.60%
Total risk-based capital Ratio	26.20%	27.20%
Leverage Amount	560,025	556,876
Risk-based capital amount	560,025	556,876
Total risk-based capital Amount	574,398	569,998
Required to be considered well capitalized Ratio, leverage ratio	10.00%	10.00%
Required to be considered well capitalized Ratio, risk-based capital ratio	11.00%	11.00%
Required to be considered well capitalized Ratio, Total risk-based capital ratio	12.00%	12.00%
Required to be considered well capitalized leverage Amount	482,407	491,294
Required to be considered well capitalized risk-based capital Amount	241,156	230,334
Required to be considered well capitalized Total risk-based capital Amount	263,079	251,273
Required to be considered adequately capitalized Ratio, leverage ratio	4.00%	4.00%
Required to be considered adequately capitalized Ratio, risk-based capital ratio	4.00%	4.00%
Required to be considered adequately capitalized Ratio, Total risk-based capital ratio	8.00%	8.00%
Required to be considered adequately capitalized leverage Amount	192,963	196,518
Required to be considered adequately capitalized risk-based capital Amount	87,693	83,758
Required to be considered adequately capitalized Total risk-based capital Amount	$175,386	$167,515

FDIC_Loss_Sharing_Income_Sched

FDIC Loss Sharing Income - (Schedule of Additional Details of Company's FDIC Loss Sharing Income) (Detail) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Banking and Thrift [Abstract]	'	'
Clawback liability amortization	($328)	($313)
Clawback liability remeasurement	-516	573
Reimbursement to FDIC for gain on sale of and income from covered OREO	-918	-860
Reimbursement to FDIC for recoveries	-85	-15
FDIC reimbursement of covered asset resolution costs	890	3,891
Total	($957)	$3,276

Stockbased_Compensation_and_Em2

Stock-based Compensation and Employee Benefits - (Narrative) (Detail) (USD $)	3 Months Ended
In Millions, except Share data, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Share Based Compensation [Line Items]	'	'
Stock option expense	$0.30	$0.70
Weighted average period of cost recognized	'1 year 2 months 12 days	'
Expense related to restricted stock	0.4	0.7
Unrecognized compensation cost related to non-vested restricted shares granted	1.3	'
Non-Vested Stock Options [Member]	'	'
Share Based Compensation [Line Items]	'	'
Total unrecognized compensation expense relate to stock options	$1	'
Weighted average period of cost recognized	'9 months 18 days	'
NBH Holdings Corp. 2009 Equity Incentive Plan [Member]	'	'
Share Based Compensation [Line Items]	'	'
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized	5,750,000	'
Maximum Number Of Shares Of Restricted Stock Or Shares Subject To Restricted Stock Units Award Granted	1,725,000	'

Stockbased_Compensation_and_Em3

Stock-based Compensation and Employee Benefits - (Summary of Option Activity) (Detail) (USD $)	3 Months Ended		12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]	'	'	'
Outstanding Options, beginning	3,515,486	'	'
Granted, Options	0	'	'
Forfeited, Options	0	'	'
Surrendered, Options	-9,705	'	'
Exercised, Options	-295	'	'
Expired, Options	-2,083	'	'
Outstanding Options, ending	'	'	3,515,486
Outstanding, Weighted Average Exercise Price, beginning	$19.92	'	'
Granted, Weighted Average Exercise Price	$0	'	'
Forfeited, Weighted Average Exercise Price	$0	'	'
Surrendered, Weighted Average Exercise Price	$20	'	'
Exercised, Weighted Average Exercise Price	$20	'	'
Expired, Weighted Average Exercise Price	$20	'	'
Outstanding, Weighted Average Exercised Price, ending	'	'	$19.92
Outstanding, Weighted Average Remaining Contractual Term in Years, beginning	'5 years 10 months 28 days	'	'6 years 1 month 17 days
Outstanding, Weighted Average Remaining Contractual Term in Years, ending	'5 years 10 months 28 days	'	'6 years 1 month 17 days
Outstanding, Aggregate Intrinsic Value, beginning	$5,183,567	'	'
Outstanding, Aggregate Intrinsic Value, ending	520,681	'	5,183,567
Options fully vested and exercisable at March 31, 2014, Options	2,887,166	'	'
Options expected to vest, Options	573,660	'	'
Options fully vested and exercisable at March 31, 2014, Weighted Average Exercise Price	$20	'	'
Options expected to vest, Weighted Average Exercise Price	$19.62	'	'
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term	'5 years 9 months 4 days	'	'
Options expected to vest, Weighted Average Remaining Contractual Term in Years	'6 years 4 months 2 days	'	'
Aggregate intrinsic Value of Options fully vested and exercisable at March 31, 2014	202,102	'	'
Options expected to vest, Aggregate Intrinsic Value	$459,678	'	'
Option To Purchase Common Shares Outstanding	3,503,403	3,478,665	'
Stock Repurchase During Period Price Per Share	$19.92	$19.98	'

Stockbased_Compensation_and_Em4

Stock-based Compensation and Employee Benefits - (Summary of Restricted Stock Activity) (Details) (Common Class A [Member], Restricted Stock [Member], USD $)	3 Months Ended
	Mar. 31, 2014
Common Class A [Member] | Restricted Stock [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]	'
Unvested Restricted Shares, Beginning (in shares)	1,064,460
Unvested Restricted Shares, Vested (in shares)	-22,542
Unvested Restricted Shares, Granted (in shares)	0
Unvested Restricted Shares, Forfeited (in shares)	-10,000
Unvested Restricted Shares, Surrendered (in shares)	-10,791
Unvested Restricted Shares, Ending (in shares)	1,021,127
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]	'
Weighted Average Grant-Date Fair Value, Beginning (in dollars per share)	$15.16
Weighted Average Grant-Date Fair Value, Vested (in dollars per share)	$19.94
Weighted Average Grant-Date Fair Value, Granted (in dollars per share)	$0
Weighted Average Grant-Date Fair Value, Forfeited (in dollars per share)	$13.14
Weighted Average Grant-Date, Fair Value, Surrendered (in dollars per share)	$19.94
Weighted Average Grant-Date Fair Value, Ending (in dollars per share)	$15.02

Warrants_Narrative_Detail

Warrants (Narrative) (Detail) (USD $)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
Summary Activity In Gold Bullion [Line Items]	'	'	'
Outstanding warrants	830,750	830,750	830,750
Warrants granted, exercise price per share	$20	$20	$20
Warrant, contractual term (in years)	'10 years	'	'
Fair value of the warrants	$5,400,000	'	$6,300,000
Gain from the change in fair value of warrant liability	($898,000)	($627,000)	'
Minimum [Member]	'	'	'
Summary Activity In Gold Bullion [Line Items]	'	'	'
Expiration dates of the warrants range	20-Oct-19	'	'
Maximum [Member]	'	'	'
Summary Activity In Gold Bullion [Line Items]	'	'	'
Expiration dates of the warrants range	30-Sep-20	'	'

Warrants_Schedule_of_Fair_Valu

Warrants (Schedule of Fair Value of Warrants Estimated Using Black-Scholes Option Pricing Model) (Detail) (Warrant [Member])	3 Months Ended	12 Months Ended
	Mar. 31, 2014	Dec. 31, 2013
Warrant Fair Value Black Scholes Method [Line Items]	'	'
Risk-free interest rate	1.99%	2.16%
Expected volatility	34.04%	33.80%
Dividend yield	1.00%	0.93%
Minimum [Member]	'	'
Warrant Fair Value Black Scholes Method [Line Items]	'	'
Expected term (years)	'5 years	'6 years
Maximum [Member]	'	'
Warrant Fair Value Black Scholes Method [Line Items]	'	'
Expected term (years)	'6 years	'7 years

Common_Stock_Narrative_Detail

Common Stock - (Narrative) (Detail) (USD $)	3 Months Ended		12 Months Ended						0 Months Ended	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2012	Dec. 31, 2013	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2014	Dec. 31, 2013	Jan. 23, 2014	Mar. 31, 2014	Dec. 31, 2013
					Common Class A [Member]	Common Class A [Member]	Common Class B [Member]	Common Class B [Member]	2014 Share Repurchase Program [Member]	2014 Share Repurchase Program [Member]	2013 Share Repurchase Program [Member]
Schedule Of Common Stock [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Stock repurchase program, authorized amount	'	'	'	'	'	'	'	'	$50,000,000	'	$35,000,000
Shares repurchased (shares)	'	'	'	'	'	'	'	'	'	454,706	'
Repurchase of shares	$8,807,000	$230,000	'	'	'	'	'	'	'	$8,800,000	'
Shares repurchased (weighted average cost per share)	'	'	'	'	'	'	'	'	'	$19.35	'
Shares outstanding	44,486,467	'	'	44,918,336	41,458,693	41,890,562	3,027,774	3,027,774	'	'	'
Restricted issued but not yet vested, shares	1,021,127	'	1,064,460	'	'	'	'	'	'	'	'

Income_Per_Share_Narrative_Det

Income Per Share - (Narrative) (Detail) (USD $)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
Earnings Per Share [Abstract]	'	'	'
Shares outstanding	44,486,467	52,314,909	'
Outstanding stock options to purchase common stock	3,503,403	3,478,665	'
Outstanding stock options to purchase common stock, per share	$19.92	$19.98	'
Outstanding warrants	830,750	830,750	830,750
Warrants granted, exercise price per share	$20	$20	$20
Restricted shares outstanding	1,021,127	951,668	'

Income_Per_Share_Schedule_of_C

Income Per Share - (Schedule of Computation of Basic and Diluted Income Per Share) (Detail) (USD $)	3 Months Ended
In Thousands, except Share data, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]	'	'
Distributed earnings	$2,276	$2,663
Undistributed earnings (distributions in excess of earnings)	-845	-581
Net income	1,431	2,082
Less: earnings allocated to participating securities	-5	0
Income available to common stockholders (numerator)	$1,426	$2,082
Weighted average common shares outstanding (denominator)	44,819,644	52,320,622
Weighted average shares outstanding for diluted earnings per common share	44,863,138	52,346,525
Income per sharebbasic (in dollars per share)	$0.03	$0.04
Income per sharebdiluted (in dollars per share)	$0.03	$0.04
Equity Option [Member]	'	'
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]	'	'
Dilutive Convertible Securities	35,827	25,903
Warrant [Member]	'	'
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]	'	'
Dilutive Convertible Securities	7,667	0

Derivatives_FV_of_Derivatives_

Derivatives - (FV of Derivatives on the Balance Sheet) (Details) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Designated as Hedging Instrument [Member]	'	'
Derivative [Line Items]	'	'
Asset Derivatives	$1	$129
Liability Derivatives	485	0
Not Designated as Hedging Instrument [Member]	'	'
Derivative [Line Items]	'	'
Asset Derivatives	204	73
Liability Derivatives	219	74
Other assets [Member] | Interest rate products [Member] | Designated as Hedging Instrument [Member]	'	'
Derivative [Line Items]	'	'
Asset Derivatives	1	129
Other assets [Member] | Interest rate products [Member] | Not Designated as Hedging Instrument [Member]	'	'
Derivative [Line Items]	'	'
Asset Derivatives	204	73
Other liabilities [Member] | Interest rate products [Member] | Designated as Hedging Instrument [Member]	'	'
Derivative [Line Items]	'	'
Liability Derivatives	485	0
Other liabilities [Member] | Interest rate products [Member] | Not Designated as Hedging Instrument [Member]	'	'
Derivative [Line Items]	'	'
Liability Derivatives	$219	$74

Derivatives_Narrative_Details

Derivatives - (Narrative) (Details) (USD $)	Mar. 31, 2014	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2014	Dec. 31, 2013
		Not Designated as Hedging Instrument [Member]	Not Designated as Hedging Instrument [Member]	Fair Value Hedging [Member]	Fair Value Hedging [Member]	Fair Value Hedging [Member]	Fair Value Hedging [Member]
		Interest Rate Swap [Member]	Interest Rate Swap [Member]	Designated as Hedging Instrument [Member]	Designated as Hedging Instrument [Member]	Designated as Hedging Instrument [Member]	Designated as Hedging Instrument [Member]
		Swap	Swap			Interest Rate Swap [Member]	Interest Rate Swap [Member]
						Swap	Swap
Derivative [Line Items]	'	'	'	'	'	'	'
Number of interest rate swaps held	'	4	3	'	'	4	1
Notional amount	'	$9,200,000	$7,300,000	'	'	$30,500,000	$10,000,000
Gain (loss) related to hedge ineffectiveness	'	'	'	73,000	0	'	'
Termination value of derivatives in net liability position	980,000	'	'	'	'	'	'
Collateral Already Posted, Aggregate Fair Value	$948,300	'	'	'	'	'	'

Derivatives_Derivatives_on_the

Derivatives - (Derivatives on the Income Statement) (Details) (Interest rate products [Member], Fair Value Hedging [Member], USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Designated as Hedging Instrument [Member]	'	'
Derivative [Line Items]	'	'
Amount of Gain or (Loss) Recognized in Income on Derivative	($614)	$0
Amount of Gain or (Loss) Recognized in Income on Hedged Item	541	0
Designated as Hedging Instrument [Member] | Interest income [Member]	'	'
Derivative [Line Items]	'	'
Amount of Gain or (Loss) Recognized in Income on Derivative	-614	0
Amount of Gain or (Loss) Recognized in Income on Hedged Item	541	0
Not Designated as Hedging Instrument [Member]	'	'
Derivative [Line Items]	'	'
Amount of Gain or (Loss) Recognized in Income on Derivative	-14	0
Not Designated as Hedging Instrument [Member] | Other Non-Interest income [Member]	'	'
Derivative [Line Items]	'	'
Amount of Gain or (Loss) Recognized in Income on Derivative	($14)	$0

Fair_Value_Measurements_Tables1

Fair Value Measurements - (Tables of Financial Instruments Measured At Fair Value on Recurring Basis) (Detail) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total assets at fair value	$1,721,045	$1,785,730
Total liabilities at fair value	39,396	38,820
Other Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total assets at fair value	419	419
Derivative [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total assets at fair value	205	202
Total liabilities at fair value	704	74
Warrant Liability [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total liabilities at fair value	5,383	6,281
Clawback Liability [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total liabilities at fair value	33,309	32,465
Investment Securities Available-For-Sale [Member] | Asset Backed Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total assets at fair value	2,068	4,537
Mortgage-Backed Securities (MBS) [Member] | Residential Mortgage Pass-Through Securities Issued or Guaranteed by U.S. Government Agencies or Sponsored Enterprises [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total assets at fair value	472,956	494,990
Mortgage-Backed Securities (MBS) [Member] | Other Residential MBS Issued or Guaranteed by U.S. Government Agencies or Sponsored Enterprises [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total assets at fair value	1,245,397	1,285,582
Level 1 [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total assets at fair value	0	0
Total liabilities at fair value	0	0
Level 1 [Member] | Other Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total assets at fair value	0	0
Level 1 [Member] | Derivative [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total assets at fair value	0	0
Total liabilities at fair value	0	0
Level 1 [Member] | Warrant Liability [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total liabilities at fair value	0	0
Level 1 [Member] | Clawback Liability [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total liabilities at fair value	0	0
Level 1 [Member] | Investment Securities Available-For-Sale [Member] | Asset Backed Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total assets at fair value	0	0
Level 1 [Member] | Mortgage-Backed Securities (MBS) [Member] | Residential Mortgage Pass-Through Securities Issued or Guaranteed by U.S. Government Agencies or Sponsored Enterprises [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total assets at fair value	0	0
Level 1 [Member] | Mortgage-Backed Securities (MBS) [Member] | Other Residential MBS Issued or Guaranteed by U.S. Government Agencies or Sponsored Enterprises [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total assets at fair value	0	0
Level 2 [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total assets at fair value	1,720,626	1,785,311
Total liabilities at fair value	704	74
Level 2 [Member] | Other Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total assets at fair value	0	0
Level 2 [Member] | Derivative [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total assets at fair value	205	202
Total liabilities at fair value	704	74
Level 2 [Member] | Warrant Liability [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total liabilities at fair value	0	0
Level 2 [Member] | Clawback Liability [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total liabilities at fair value	0	0
Level 2 [Member] | Investment Securities Available-For-Sale [Member] | Asset Backed Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total assets at fair value	2,068	4,537
Level 2 [Member] | Mortgage-Backed Securities (MBS) [Member] | Residential Mortgage Pass-Through Securities Issued or Guaranteed by U.S. Government Agencies or Sponsored Enterprises [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total assets at fair value	472,956	494,990
Level 2 [Member] | Mortgage-Backed Securities (MBS) [Member] | Other Residential MBS Issued or Guaranteed by U.S. Government Agencies or Sponsored Enterprises [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total assets at fair value	1,245,397	1,285,582
Level 3 [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total assets at fair value	419	419
Total liabilities at fair value	38,692	38,746
Level 3 [Member] | Other Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total assets at fair value	419	419
Level 3 [Member] | Derivative [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total assets at fair value	0	0
Total liabilities at fair value	0	'
Level 3 [Member] | Warrant Liability [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total liabilities at fair value	5,383	6,281
Level 3 [Member] | Clawback Liability [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total liabilities at fair value	33,309	32,465
Level 3 [Member] | Investment Securities Available-For-Sale [Member] | Asset Backed Securities [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total assets at fair value	0	0
Level 3 [Member] | Mortgage-Backed Securities (MBS) [Member] | Residential Mortgage Pass-Through Securities Issued or Guaranteed by U.S. Government Agencies or Sponsored Enterprises [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total assets at fair value	0	0
Level 3 [Member] | Mortgage-Backed Securities (MBS) [Member] | Other Residential MBS Issued or Guaranteed by U.S. Government Agencies or Sponsored Enterprises [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Total assets at fair value	$0	$0

Fair_Value_Measurements_Table_

Fair Value Measurements - (Table of Changes in Level 3 Financial Instruments) (Detail) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Warrant [Member]	'	'
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]	'	'
Beginning Balance	$6,281	$5,461
Change in value	-898	-627
Amortization	0	0
Settlement	0	'
Net change in Level 3	-898	-627
Ending Balance	5,383	4,834
Clawback Liability [Member]	'	'
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]	'	'
Beginning Balance	32,465	31,271
Change in value	516	-573
Amortization	328	313
Settlement	0	'
Net change in Level 3	844	-260
Ending Balance	$33,309	$31,011

Fair_Value_Measurements_Additi

Fair Value Measurements - Additional Information (Detail) (USD $)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Number of comparable companies for expected volatility	9	'
Measuring period for payments to the FDIC	'45 days	'
Number of Loans measured	25	'
Nonrecurring Loans Reserves	$600,000	'
Additions [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Number of Loans measured	3	'
Nonrecurring Loans Reserves	100,000	'
Nonrecurring Loans Carrying value	3,300,000	'
Eliminations [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Number of Loans measured	5	'
Nonrecurring Loans Reserves	400,000	'
FDIC [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Other Real Estate Owned Impairments Covered by the FDIC	600,000	3,100,000
Percentage of OREO impairments covered by the FDIC	69.60%	67.50%
Other Real Estate Owned [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Losses from change in fair value	-822,000	-4,526,000
Collateral Dependent Impaired Loans [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Losses from change in fair value	($465,000)	($4,911,000)

Fair_Value_Measurements_Inputs

Fair Value Measurements - (Inputs Used to Determine Fair Values of Oreo are Considered Level 3 Inputs in Fair Value Hierarchy) (Detail) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Other Real Estate Owned [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Assets, Fair Value Disclosure, Nonrecurring	$65,983	$83,330
Losses From Fair Value Changes	822	4,526
Impaired loans [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Assets, Fair Value Disclosure, Nonrecurring	33,103	36,605
Losses From Fair Value Changes	465	4,911
Level 1 [Member] | Other Real Estate Owned [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Assets, Fair Value Disclosure, Nonrecurring	0	0
Level 1 [Member] | Impaired loans [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Assets, Fair Value Disclosure, Nonrecurring	0	0
Level 2 [Member] | Other Real Estate Owned [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Assets, Fair Value Disclosure, Nonrecurring	0	0
Level 2 [Member] | Impaired loans [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Assets, Fair Value Disclosure, Nonrecurring	0	0
Level 3 [Member] | Other Real Estate Owned [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Assets, Fair Value Disclosure, Nonrecurring	65,983	83,330
Level 3 [Member] | Impaired loans [Member]	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Assets, Fair Value Disclosure, Nonrecurring	$33,103	$36,605

Fair_Value_Measurements_Table_1

Fair Value Measurements - (Table of Valuation Techniques and Unobservable Inputs Used in Valuation of Financial Instruments Falling Within Level 3 of Fair Value Hierarchy) (Detail) (USD $)

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Other Securities [Member]

Impaired loans [Member]

Clawback Liability [Member]

Warrant Liability [Member]

Discounted Cash Flows [Member]

Minimum [Member]

Minimum [Member]

Minimum [Member]

Maximum [Member]

Maximum [Member]

Maximum [Member]

Appraised value [Member]

Contractually Defined [Member]

Black-Scholes [Member]

Appraised value [Member]

Contractually Defined [Member]

Black-Scholes [Member]

Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

Total assets at fair value

$1,721,045,000

$1,785,730,000

$419,000

'

'

'

'

'

'

'

'

'

'

Total liabilities at fair value

39,396,000

38,820,000

'

33,103,000

33,309,000

5,383,000

'

'

'

'

'

'

'

Appraised values Discount rate

'

'

'

'

'

'

'

0.00%

'

'

25.00%

'

'

Intrinsic loss estimates

'

'

'

'

'

'

'

'

$323,300,000

'

'

$405,000,000

'

Discount rate

'

'

'

'

'

'

4.00%

'

'

'

'

'

'

Volatility

'

'

'

'

'

'

'

'

'

19.00%

'

'

47.00%

Fair_Value_of_Financial_Instru2

Fair Value of Financial Instruments - (Schedule of Fair Value of Financial Instruments) (Detail) (USD $)	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
ASSETS:	'	'	'	'
Cash and cash equivalents	$197,815	$189,460	$419,193	$769,180
Investment securities available-for-sale (at fair value)	1,720,840	1,785,528	'	'
Mortgage-backed securitiesbresidential mortgage pass-through securities issued or guaranteed by U.S. Government agencies or sponsored enterprises held-to-maturity	616,221	641,907	'	'
Loans held-for-sale	2,143	5,787	'	'
LIABILITIES:	'	'	'	'
Time deposits	1,443,898	1,495,687	'	'
Securities sold under agreements to repurchase	91,065	99,547	'	'
Due to FDIC	33,309	41,882	'	'
Asset Backed Securities [Member]	'	'	'	'
ASSETS:	'	'	'	'
Investment securities available-for-sale (at fair value)	2,068	4,537	'	'
Residential Mortgage Pass-Through Securities Issued or Guaranteed by U.S. Government Agencies or Sponsored Enterprises [Member]	'	'	'	'
ASSETS:	'	'	'	'
Investment securities available-for-sale (at fair value)	472,956	494,990	'	'
Other Residential MBS Issued or Guaranteed by U.S. Government Agencies or Sponsored Enterprises [Member]	'	'	'	'
ASSETS:	'	'	'	'
Investment securities available-for-sale (at fair value)	1,245,397	1,285,582	'	'
Other Residential MBS Issued or Guaranteed by U.S. Government Agencies or Sponsored Enterprises [Member] | Level 2 [Member]	'	'	'	'
ASSETS:	'	'	'	'
Mortgage-backed securitiesbresidential mortgage pass-through securities issued or guaranteed by U.S. Government agencies or sponsored enterprises held-to-maturity	121,154	124,916	'	'
Other Securities [Member]	'	'	'	'
ASSETS:	'	'	'	'
Investment securities available-for-sale (at fair value)	419	419	'	'
Carrying Amount [Member] | Level 1 [Member]	'	'	'	'
ASSETS:	'	'	'	'
Cash and cash equivalents	197,815	189,460	'	'
Carrying Amount [Member] | Level 2 [Member]	'	'	'	'
ASSETS:	'	'	'	'
Capital stock of FHLB	6,089	6,643	'	'
Capital stock of FRB	25,020	25,020	'	'
Loans held-for-sale	2,143	5,787	'	'
Accrued interest receivable	12,197	11,355	'	'
Derivative Asset	205	202	'	'
LIABILITIES:	'	'	'	'
Deposit transaction accounts	2,422,198	2,342,622	'	'
Time deposits	1,443,898	1,495,687	'	'
Securities sold under agreements to repurchase	91,065	99,547	'	'
Accrued interest payable	3,112	3,058	'	'
Derivative Liability	704	74	'	'
Carrying Amount [Member] | Level 3 [Member]	'	'	'	'
ASSETS:	'	'	'	'
Loans receivable, net	1,947,620	1,841,573	'	'
LIABILITIES:	'	'	'	'
Due to FDIC	33,309	41,882	'	'
Warrant liability	5,383	6,281	'	'
Carrying Amount [Member] | Asset Backed Securities [Member] | Level 2 [Member]	'	'	'	'
ASSETS:	'	'	'	'
Investment securities available-for-sale (at fair value)	2,068	4,537	'	'
Carrying Amount [Member] | Residential Mortgage Pass-Through Securities Issued or Guaranteed by U.S. Government Agencies or Sponsored Enterprises [Member] | Level 2 [Member]	'	'	'	'
ASSETS:	'	'	'	'
Investment securities available-for-sale (at fair value)	472,956	494,990	'	'
Mortgage-backed securitiesbresidential mortgage pass-through securities issued or guaranteed by U.S. Government agencies or sponsored enterprises held-to-maturity	492,294	513,090	'	'
Carrying Amount [Member] | Other Residential MBS Issued or Guaranteed by U.S. Government Agencies or Sponsored Enterprises [Member] | Level 2 [Member]	'	'	'	'
ASSETS:	'	'	'	'
Investment securities available-for-sale (at fair value)	1,245,397	1,285,582	'	'
Mortgage-backed securitiesbresidential mortgage pass-through securities issued or guaranteed by U.S. Government agencies or sponsored enterprises held-to-maturity	123,927	128,817	'	'
Carrying Amount [Member] | Other Securities [Member] | Level 3 [Member]	'	'	'	'
ASSETS:	'	'	'	'
Investment securities available-for-sale (at fair value)	419	419	'	'
Estimated Fair Value [Member] | Level 1 [Member]	'	'	'	'
ASSETS:	'	'	'	'
Cash and cash equivalents	197,815	189,460	'	'
Estimated Fair Value [Member] | Level 2 [Member]	'	'	'	'
ASSETS:	'	'	'	'
Capital stock of FHLB	6,089	6,643	'	'
Capital stock of FRB	25,020	25,020	'	'
Loans held-for-sale	2,143	5,787	'	'
Accrued interest receivable	12,197	11,355	'	'
Derivative Asset	205	202	'	'
LIABILITIES:	'	'	'	'
Deposit transaction accounts	2,422,198	2,342,622	'	'
Time deposits	1,446,661	1,498,798	'	'
Securities sold under agreements to repurchase	91,065	99,547	'	'
Accrued interest payable	3,112	3,058	'	'
Derivative Liability	704	74	'	'
Estimated Fair Value [Member] | Level 3 [Member]	'	'	'	'
ASSETS:	'	'	'	'
Loans receivable, net	2,015,036	1,923,888	'	'
LIABILITIES:	'	'	'	'
Due to FDIC	33,309	41,882	'	'
Warrant liability	5,383	6,281	'	'
Estimated Fair Value [Member] | Asset Backed Securities [Member] | Level 2 [Member]	'	'	'	'
ASSETS:	'	'	'	'
Investment securities available-for-sale (at fair value)	2,068	4,537	'	'
Estimated Fair Value [Member] | Residential Mortgage Pass-Through Securities Issued or Guaranteed by U.S. Government Agencies or Sponsored Enterprises [Member] | Level 2 [Member]	'	'	'	'
ASSETS:	'	'	'	'
Investment securities available-for-sale (at fair value)	472,956	494,990	'	'
Mortgage-backed securitiesbresidential mortgage pass-through securities issued or guaranteed by U.S. Government agencies or sponsored enterprises held-to-maturity	492,969	511,489	'	'
Estimated Fair Value [Member] | Other Residential MBS Issued or Guaranteed by U.S. Government Agencies or Sponsored Enterprises [Member] | Level 2 [Member]	'	'	'	'
ASSETS:	'	'	'	'
Investment securities available-for-sale (at fair value)	1,245,397	1,285,582	'	'
Estimated Fair Value [Member] | Other Securities [Member] | Level 3 [Member]	'	'	'	'
ASSETS:	'	'	'	'
Investment securities available-for-sale (at fair value)	$419	$419	'	'

Fair_Value_of_Financial_Instru3

Fair Value of Financial Instruments - (Additional Information) (Detail)	3 Months Ended
	Mar. 31, 2014
Fair Value Of Financial Instruments [Abstract]	'
Residential mortgage loans held for sale period	'45 days