Enterprise Financial Services (EFSC) 10-Q 2 May 14 2014 Q1 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information Document	3 Months Ended
	Mar. 31, 2014	Apr. 30, 2014
Entity Information [Line Items]	'	'
Entity Registrant Name	'ENTERPRISE FINANCIAL SERVICES CORP	'
Entity Central Index Key	'0001025835	'
Current Fiscal Year End Date	'--12-31	'
Entity Filer Category	'Accelerated Filer	'
Document Type	'10-Q	'
Document Period End Date	31-Mar-14	'
Document Fiscal Year Focus	'2014	'
Document Fiscal Period Focus	'Q1	'
Amendment Flag	'false	'
Entity Common Stock, Shares Outstanding	'	19,754,102

Condensed_Consolidated_Balance

Condensed Consolidated Balance Sheets (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Assets	'	'
Cash and due from banks	$35,260	$19,573
Federal funds sold	56	76
Interest-bearing deposits (including $990 and $990 pledged as collateral)	102,335	190,920
Total cash and cash equivalents	137,651	210,569
Interest-bearing deposits greater than 90 days	5,300	5,300
Securities available for sale	456,059	434,587
Mortgage loans held for sale	1,901	1,834
Portfolio loans not covered under FDIC loss share	2,173,988	2,137,313
Less: Allowance for loan losses	27,905	27,289
Portfolio loans, net	2,146,083	2,110,024
Purchase credit impaired loans, net of the allowance for loan losses ($18,513 and $15,438, respectively)	110,159	125,100
Portfolio loans, net	2,256,242	2,235,124
Other real estate not covered under FDIC loss share	10,001	7,576
Other real estate covered under FDIC loss share	14,898	15,676
Other investments, at cost	14,944	12,605
Fixed assets, net	18,028	18,180
Accrued interest receivable	7,476	7,303
State tax credits, held for sale, including $14,900 and $16,491 carried at fair value, respectively	45,660	48,457
FDIC loss share receivable	29,781	34,319
Goodwill	30,334	30,334
Intangibles, net	5,092	5,418
Other assets	106,584	102,915
Total assets	3,139,951	3,170,197
Liabilities and Shareholders' Equity	'	'
Demand deposits	612,715	653,686
Interest-bearing transaction accounts	221,816	219,802
Money market accounts	924,105	948,884
Savings	80,731	79,666
Certificates of deposit:	'	'
$100 and over	456,558	475,544
Other	156,193	157,371
Total deposits	2,452,118	2,534,953
Subordinated debentures	56,807	62,581
Federal Home Loan Bank advances	130,000	50,000
Other borrowings	183,718	203,831
Notes Payable to Bank	6,600	10,500
Accrued interest payable	874	957
Other liabilities	18,385	27,670
Total liabilities	2,848,502	2,890,492
Shareholders' equity:	'	'
Preferred stock, $0.01 par value; 5,000,000 shares authorized; 0 shares issued and outstanding	0	0
Common stock, $0.01 par value; 30,000,000 shares authorized; 19,781,608 and 19,399,709 shares issued, respectively	198	194
Treasury stock, at cost; 76,000 shares	-1,743	-1,743
Additional paid in capital	205,436	200,258
Retained earnings	90,181	85,376
Accumulated other comprehensive income	-2,623	-4,380
Total shareholders' equity	291,449	279,705
Total liabilities and shareholders' equity	$3,139,951	$3,170,197

Condensed_Consolidated_Balance1

Condensed Consolidated Balance Sheets (Parenthetical) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, except Share data, unless otherwise specified
Assets	'	'
Collateral pledged	$990	$990
Allowance for loan losses on Portfolio loans, covered under FDIC loss share	18,513	15,438
State tax credits, held for sale, carried at fair value	$14,900	$16,491
Shareholders' equity:	'	'
Preferred stock, par value	$0.01	$0.01
Preferred stock, shares authorized	5,000,000	5,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value	$0.01	$0.01
Common stock, shares authorized	30,000,000	30,000,000
Common stock, shares issued	19,781,608	19,399,709
Treasury stock, shares	76,000	76,000

Condensed_Consolidated_Stateme

Condensed Consolidated Statements of Operations (USD $)	3 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Interest income:	'	'
Interest and fees on loans	$31,444	$39,349
Interest on debt securities:	'	'
Taxable	2,166	2,113
Nontaxable	299	301
Interest on interest-bearing deposits	66	47
Dividends on equity securities	49	100
Total interest income	34,024	41,910
Interest expense:	'	'
Interest-bearing transaction accounts	112	138
Money market accounts	742	882
Savings	49	59
Certificates of deposit:	'	'
$100 and over	1,326	1,452
Other	424	486
Subordinated debentures	407	952
Federal Home Loan Bank advances	399	734
Notes payable and other borrowings	199	308
Total interest expense	3,658	5,011
Net interest income	30,366	36,899
Provision for loan losses not covered under FDIC loss share	1,027	1,853
Provision for loan losses covered under FDIC loss share	3,304	2,256
Net interest income after provision for loan losses	26,035	32,790
Noninterest income:	'	'
Wealth Management revenue	1,722	1,943
Service charges on deposit accounts	1,738	1,533
Other service charges and fee income	637	647
Gain on sale of other real estate	683	728
Gain on state tax credits, net	497	867
Gain on sale of investment securities	0	684
Change in FDIC loss share receivable	-2,410	-4,085
Miscellaneous income	1,055	597
Total noninterest income	3,922	2,914
Noninterest expense:	'	'
Employee compensation and benefits	12,116	11,463
Occupancy	1,640	1,916
Data processing	1,126	921
FDIC and other insurance	699	859
Loan legal and other real estate expense	1,134	33
Professional Fees	1,267	1,425
Other	3,120	3,668
Total noninterest expense	21,102	20,285
Income before income tax expense	8,855	15,419
Income tax expense	3,007	5,379
Net income	$5,848	$10,040
Earnings per common share	'	'
Basic	$0.30	$0.56
Diluted	$0.30	$0.53

Condensed_Consolidated_Stateme1

Condensed Consolidated Statements of Comprehensive Income (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Net income	$5,848	$10,040
Other comprehensive income, net of tax:	'	'
Unrealized gain/(loss) on investment securities available for sale arising during the period, net of income tax expense/(benefit) of $1,091, and $(1,159), respectively	1,757	-1,822
Less reclassification adjustment for realized gains on sale of securities available for sale included in net income, net of income tax expense of $0, and $267, respectively	0	-417
Total other comprehensive income (loss)	1,757	-2,239
Total comprehensive income	$7,605	$7,801

Condensed_Consolidated_Stateme2

Condensed Consolidated Statements of Comprehensive Income (Parenthetical) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Tax	$1,091	($1,159)
Other Comprehensive Income (Loss), Reclassification Adjustment for Sale of Securities Included in Net Income, Tax	$0	$267

Condensed_Consolidated_Stateme3

Condensed Consolidated Statements of Shareholders' Equity (USD $)	Total	Preferred Stock [Member]	Common Stock [Member]	Treasury Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Parent [Member]
In Thousands, unless otherwise specified
Balance at Dec. 31, 2012	'	$0	$181	($1,743)	$173,299	$56,218	$7,790	$235,745
Increase (Decrease) in Stockholders' Equity [Roll Forward]	'	'	'	'	'	'	'	'
Net income	10,040	0	0	0	0	10,040	0	10,040
Total comprehensive income	7,801	0	0	0	0	0	-2,239	-2,239
Cash dividends paid on common shares, $0.1575 per share	'	0	0	0	0	-948	0	-948
Repurchase of common stock warrants	-1,006	0	0	0	-1,006	0	0	-1,006
Issuance under equity compensation plans, net	'	0	1	0	1,323	0	0	1,324
Stock Issued During Period, Value, Conversion of Convertible Securities	0	'	'	'	'	'	'	'
Share-based compensation	'	0	0	0	778	0	0	778
Excess tax benefit related to equity compensation plans	'	0	0	0	10	0	0	10
Balance at Mar. 31, 2013	'	0	182	-1,743	174,404	65,310	5,551	243,704
Balance at Dec. 31, 2013	279,705	0	194	-1,743	200,258	85,376	-4,380	279,705
Increase (Decrease) in Stockholders' Equity [Roll Forward]	'	'	'	'	'	'	'	'
Net income	5,848	0	0	0	0	5,848	0	5,848
Total comprehensive income	7,605	0	0	0	0	0	1,757	1,757
Cash dividends paid on common shares, $0.1575 per share	'	0	0	0	0	-1,043	0	-1,043
Repurchase of common stock warrants	0	'	'	'	'	'	'	'
Issuance under equity compensation plans, net	'	0	1	0	-630	0	0	-629
Stock Issued During Period, Value, Conversion of Convertible Securities	5,002	0	3	0	4,999	0	0	5,002
Share-based compensation	'	0	0	0	735	0	0	735
Excess tax benefit related to equity compensation plans	'	0	0	0	74	0	0	74
Balance at Mar. 31, 2014	$291,449	$0	$198	($1,743)	$205,436	$90,181	($2,623)	$291,449

Condensed_Consolidated_Stateme4

Condensed Consolidated Statements of Shareholders' Equity (Parenthetical) (USD $)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Cash dividends paid on common shares, per share	$0.05	$0.05
Issuance under equity compensation plans, shares	94,047	93,996
Trust preferred securities conversion	287,852	0

Condensed_Consolidated_Stateme5

Condensed 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	$5,848	$10,040
Adjustments to reconcile net income to net cash provided by operating activities	'	'
Depreciation	533	789
Provision for loan losses	4,331	4,109
Deferred income taxes	1,032	-405
Net amortization of debt securities	951	1,846
Amortization of intangible assets	383	433
Gain on sale of investment securities	0	-684
Mortgage loans originated for sale	-10,050	-19,389
Proceeds from mortgage loans sold	10,008	25,905
Gain on sale of other real estate	-683	-728
Gain on state tax credits, net	-497	-867
Excess tax benefit of share-based compensation	74	0
Share-based compensation	735	778
Valuation adjustment on other real estate	344	544
Net accretion of loan discount and indemnification asset	-4,096	-6,981
Changes in:	'	'
Accrued interest receivable	-173	-1,565
Accrued interest payable	-83	-91
Prepaid FDIC insurance	0	524
Other assets	-6,621	-6,479
Other liabilities	-9,285	-5,984
Net cash provided by operating activities	-7,397	1,795
Cash flows from investing activities:	'	'
Net increase in loans	-23,344	43,922
Net cash proceeds received from FDIC loss share receivable	2,255	1,685
Proceeds from the sale of debt and equity securities, available for sale	0	122,894
Proceeds from the maturity of debt and equity securities, available for sale	10,278	29,484
Proceeds from the redemption of other investments	1,118	129
Proceeds from the sale of state tax credits held for sale	3,294	6,303
Proceeds from the sale of other real estate	3,014	3,983
Payments for the purchase/origination of:	'	'
Available for sale debt and equity securities	-29,853	0
Other investments	-3,457	-240
Fixed assets	-381	-501
Net cash provided by investing activities	-37,076	207,659
Cash flows from financing activities:	'	'
Net increase in noninterest-bearing deposit accounts	-40,971	-81,258
Net decrease in interest-bearing deposit accounts	-41,863	-82,804
Proceeds from Federal Home Loan Bank advances	80,000	153,000
Repayments of Federal Home Loan Bank advances	0	-153,000
Repayments of Long-term Debt	-3,900	-300
Net decrease in other borrowings	-20,113	-39,391
Cash dividends paid on common stock	-1,043	-948
Excess tax benefit of share-based compensation	74	10
Repurchase of common stock warrants	0	-1,006
Proceeds from the issuance of equity instruments	-629	1,324
Net cash used in financing activities	-28,445	-204,373
Net decrease in cash and cash equivalents	-72,918	5,081
Cash and cash equivalents, beginning of period	210,569	116,370
Cash and cash equivalents, end of period	137,651	121,451
Supplemental disclosures of cash flow information:	'	'
Cash paid during the period for interest	3,741	4,920
Cash paid during the period for income taxes	8,549	7,657
Noncash transactions:	'	'
Transfer to other real estate owned in settlement of loans	4,721	3,594
Sales of other real estate financed	495	1,896
Stock Issued During Period, Value, Conversion of Convertible Securities	$5,002	$0

Summary_of_Significant_Account

Summary of Significant Accounting Policies	3 Months Ended
	Mar. 31, 2014
Accounting Policies [Abstract]	'
Summary of Significant Accounting Policies	'
	SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
	The significant accounting policies used by Enterprise Financial Services Corp (the “Company” or “Enterprise”) in the preparation of the condensed consolidated financial statements are summarized below:
	Business and Consolidation
	Enterprise is a financial holding company that provides a full range of banking and wealth management services to individuals and corporate customers located in the St. Louis, Kansas City and Phoenix metropolitan markets through its banking subsidiary, Enterprise Bank & Trust (the “Bank”).
	Operating results for the three months ended March 31, 2014 are not necessarily indicative of the results that may be expected for any other interim period or for the year ending December 31, 2014. For further information, refer to the consolidated financial statements and footnotes thereto included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2013.
	Basis of Financial Statement Presentation
	The condensed consolidated financial statements of the Company and its subsidiaries have been prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”) for interim financial information and with the instructions to Form 10-Q and Rule 10-01 of Regulation S-X. They do not include all information and footnotes required by U.S. GAAP for annual financial statements. The condensed consolidated financial statements include the accounts of the Company and its subsidiaries, all of which are wholly owned. All intercompany accounts and transactions have been eliminated. In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation have been included.

Earnings_Per_Share

Earnings Per Share	3 Months Ended
	Mar. 31, 2014
Earnings Per Share [Abstract]	'
Earnings Per Share	'
	EARNINGS PER SHARE
	Basic earnings per common share data is calculated by dividing net income available to common shareholders by the weighted average number of common shares outstanding during the period. Common shares outstanding include common stock and restricted stock awards where recipients have satisfied the vesting terms. Diluted earnings per common share gives effect to all dilutive potential common shares outstanding during the period using the treasury stock method and the if-converted method for convertible trust preferred securities.
	The following table presents a summary of per common share data and amounts for the periods indicated.
		Three months ended March 31,
	(in thousands, except per share data)	2014		2013
	Net income as reported	$	5,848	$	10,040
	Impact of assumed conversions
	Interest on 9% convertible trust preferred securities, net of income tax	66		354
	Net income available to common shareholders and assumed conversions	$	5,914	$	10,394
	Weighted average common shares outstanding	19,521		18,011
	Incremental shares from assumed conversions of convertible trust preferred securities	230		1,439
	Additional dilutive common stock equivalents	198		74
	Weighted average diluted common shares outstanding	19,949		19,524
	Basic earnings per common share:	$	0.3	$	0.56
	Diluted earnings per common share:	$	0.3	$	0.53
	For the three months ended March 31, 2014 and 2013, the amount of common stock equivalents that were excluded from the earnings per share calculations because their effect was anti-dilutive was 284,469, and 515,550 common stock equivalents (including 28,807 common stock warrants), respectively.

Investments

Investments	3 Months Ended
	Mar. 31, 2014
Investments [Abstract]	'
Investments	'
	INVESTMENTS
	The following table presents the amortized cost, gross unrealized gains and losses and fair value of securities available-for-sale:
		March 31, 2014
	(in thousands)	Amortized Cost		Gross			Gross			Fair Value
				Unrealized Gains			Unrealized Losses
	Available for sale securities:
	Obligations of U.S. Government-sponsored enterprises	$	92,754	$	703		$	(306	)	$	93,151
	Obligations of states and political subdivisions	49,678		1,149			(1,232		)	49,595
	Agency mortgage-backed securities	317,754		2,720			(7,161		)	313,313
		$	460,186	$	4,572		$	(8,699	)	$	456,059
		December 31, 2013
	(in thousands)	Amortized Cost		Gross			Gross			Fair Value
				Unrealized Gains			Unrealized Losses
	Available for sale securities:
	Obligations of U.S. Government-sponsored enterprises	$	93,218	$	700		$	(388	)	$	93,530
	Obligations of states and political subdivisions	49,721		983			(1,761		)	48,943
	Agency mortgage-backed securities	298,623		2,675			(9,184		)	292,114
		$	441,562	$	4,358		$	(11,333	)	$	434,587
	At March 31, 2014, and December 31, 2013, there were no holdings of securities of any one issuer in an amount greater than 10% of shareholders’ equity, other than the U.S. government agencies and sponsored enterprises. The residential mortgage-backed securities are all issued by U.S. government sponsored enterprises. Available for sale securities having a fair value of $259.0 million and $270.1 million at March 31, 2014, and December 31, 2013, respectively, were pledged as collateral to secure deposits of public institutions and for other purposes as required by law or contract provisions.
	The amortized cost and estimated fair value of debt securities classified as available for sale at March 31, 2014, by contractual maturity, are shown below. Expected maturities may differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties. The weighted average life of the mortgage-backed securities is approximately 5 years.
	(in thousands)	Amortized Cost		Estimated Fair Value
	Due in one year or less	$	1,262	$	1,276
	Due after one year through five years	109,526		110,475
	Due after five years through ten years	20,810		20,768
	Due after ten years	10,834		10,227
	Mortgage-backed securities	317,754		313,313
		$	460,186	$	456,059
	The following table represents a summary of available-for-sale investment securities that had an unrealized loss:
		March 31, 2014
		Less than 12 months					12 months or more					Total
	(in thousands)	Fair Value		Unrealized Losses			Fair Value			Unrealized Losses		Fair Value		Unrealized Losses
	Obligations of U.S. Government-sponsored enterprises	$	30,251	$	306		$	—		$	—	$	30,251	$	306
	Obligations of states and political subdivisions	$	11,700	$	419		$	8,874		$	813	$	20,574	$	1,232
	Agency mortgage-backed securities	166,999		5,339			26,167			1,822		193,166		7,161
		$	208,950	$	6,064		$	35,041		$	2,635	$	243,991	$	8,699
		December 31, 2013
		Less than 12 months					12 months or more					Total
	(in thousands)	Fair Value		Unrealized Losses			Fair Value			Unrealized Losses		Fair Value		Unrealized Losses
	Obligations of U.S. Government-sponsored enterprises	$	30,221	$	388		$	—		$	—	$	30,221	$	388
	Obligations of states and political subdivisions	17,141		952			7,168			809		24,309		1,761
	Agency mortgage-backed securities	159,999		7,338			21,437			1,846		181,436		9,184
		$	207,361	$	8,678		$	28,605		$	2,655	$	235,966	$	11,333
	The unrealized losses at both March 31, 2014, and December 31, 2013, were primarily attributable to changes in market interest rates since the securities were purchased. Management systematically evaluates investment securities for other-than-temporary declines in fair value on a quarterly basis. This analysis requires management to consider various factors, which include (1) the present value of the cash flows expected to be collected compared to the amortized cost of the security, (2) duration and magnitude of the decline in value, (3) the financial condition of the issuer or issuers, (4) structure of the security and (5) the intent to sell the security or whether it is more likely than not that the Company would be required to sell the security before its anticipated recovery in market value. At March 31, 2014, management performed its quarterly analysis of all securities with an unrealized loss and concluded no individual securities were other-than-temporarily impaired.
	The gross gains and gross losses realized from sales of available-for-sale investment securities were as follows:
		Three months ended March 31,
	(in thousands)	2014		2013
	Gross gains realized	$	—	$	866
	Gross losses realized	—		(182		)
	Proceeds from sales	—		122,894

Portfolio_Loans_Not_Covered_by

Portfolio Loans Not Covered by Loss Share ("Non-covered")	3 Months Ended
	Mar. 31, 2014
PORTFOLIO LOANS NOT COVERED BY LOSS SHARE [Abstract]	'
Portfolio Loans Not Covered by Loss Share (Non-covered)	'
	PORTFOLIO LOANS
	Below is a summary of Portfolio loans by category at March 31, 2014, and December 31, 2013:
	(in thousands)	March 31, 2014				December 31, 2013
	Real Estate Loans:
	Construction and land development	$	121,869			$	117,032
	Commercial real estate - Investor owned	416,777				437,688
	Commercial real estate - Owner occupied	367,300				341,631
	Residential real estate	160,195				158,527
	Total real estate loans	$	1,066,141			$	1,054,878
	Commercial and industrial	1,060,368				1,041,576
	Consumer and other	46,302				39,838
	Portfolio loans	$	2,172,811			$	2,136,292
	Unearned loan costs, net	1,177				1,021
	Portfolio loans, including unearned loan costs	$	2,173,988			$	2,137,313
	The Company grants commercial, residential, and consumer loans primarily in the St. Louis, Kansas City and Phoenix metropolitan areas. The Company has a diversified loan portfolio, with no particular concentration of credit in any one economic sector; however, a substantial portion of the portfolio is concentrated in and secured by real estate. The ability of the Company’s borrowers to honor their contractual obligations is partially dependent upon the local economy and its effect on the real estate market.
	A summary of the year-to-date activity in the allowance for loan losses and the recorded investment in Portfolio loans by class and category based on impairment method through March 31, 2014, and at December 31, 2013, is as follows:
	(in thousands)	Commercial & Industrial				Commercial				Commercial				Construction and Land Development				Residential Real Estate				Consumer & Other			Total
						Real Estate				Real Estate
						Owner Occupied				Investor Owned
	Allowance for Loan Losses:
	Balance at	$	12,246			$	4,096			$	6,600			$	2,136			$	2,019			$	192		$	27,289
	31-Dec-13
	Provision charged to expense	899				589				(9		)		(532		)		16				64			1,027
	Losses charged off	(474		)		(336		)		(250		)		(305		)		—				(4		)	(1,369		)
	Recoveries	187				8				34				688				41				—			958
	Balance at	$	12,858			$	4,357			$	6,375			$	1,987			$	2,076			$	252		$	27,905
	31-Mar-14
	(in thousands)	Commercial & Industrial				Commercial				Commercial				Construction and Land Development				Residential Real Estate				Consumer & Other			Total
						Real Estate				Real Estate
						Owner Occupied				Investor Owned
	Balance March 31, 2014
	Allowance for Loan Losses - Ending Balance:
	Individually evaluated for impairment	$	1,472			$	401			$	—			$	386			$	11			$	—		$	2,270
	Collectively evaluated for impairment	11,386				3,956				6,375				1,601				2,065				252			25,635
	Total	$	12,858			$	4,357			$	6,375			$	1,987			$	2,076			$	252		$	27,905
	Loans - Ending Balance:
	Individually evaluated for impairment	$	5,046			$	2,232			$	678			$	7,729			$	430			$	—		$	16,115
	Collectively evaluated for impairment	1,055,322				365,068				416,099				114,140				159,765				47,479			2,157,873
	Total	$	1,060,368			$	367,300			$	416,777			$	121,869			$	160,195			$	47,479		$	2,173,988
	Balance at December 31, 2013
	Allowance for Loan Losses - Ending Balance:
	Individually evaluated for impairment	$	736			$	107			$	—			$	703			$	4			$	—		$	1,550
	Collectively evaluated for impairment	11,510				3,989				6,600				1,433				2,015				192			25,739
	Total	$	12,246			$	4,096			$	6,600			$	2,136			$	2,019			$	192		$	27,289
	Loans - Ending Balance:
	Individually evaluated for impairment	$	3,380			$	606			$	6,811			$	9,484			$	559			$	—		$	20,840
	Collectively evaluated for impairment	1,038,196				341,025				430,877				107,548				157,968				40,859			2,116,473
	Total	$	1,041,576			$	341,631			$	437,688			$	117,032			$	158,527			$	40,859		$	2,137,313
	A summary of Portfolio loans individually evaluated for impairment by category at March 31, 2014, and December 31, 2013, is as follows:
		March 31, 2014
	(in thousands)	Unpaid				Recorded				Recorded				Total				Related Allowance				Average
		Contractual				Investment				Investment				Recorded Investment								Recorded Investment
		Principal Balance				With No Allowance				With
										Allowance
	Commercial & Industrial	$	5,605			$	—			$	4,449			$	4,449			$	1,364			$	3,625
	Real Estate:
	Commercial - Owner Occupied	3,371				1,399				1,041				2,440				401				1,105
	Commercial - Investor Owned	678				679				—				679				—				3,593
	Construction and Land Development	8,225				7,595				454				8,049				386				8,185
	Residential	429				406				32				438				11				532
	Consumer & Other	—				—				—				—				—				—
	Total	$	18,308			$	10,079			$	5,976			$	16,055			$	2,162			$	17,040
		December 31, 2013
(in thousands)	Unpaid				Recorded				Recorded				Total				Related Allowance				Average
	Contractual				Investment				Investment				Recorded Investment								Recorded Investment
	Principal Balance				With No Allowance				With
									Allowance
Commercial & Industrial	$	4,377			$	—			$	3,384			$	3,384			$	736			$	6,574
Real Estate:
Commercial - Owner Occupied	606				201				421				622				107				1,868
Commercial - Investor Owned	8,033				7,190				—				7,190				—				11,348
Construction and Land Development	10,668				7,383				2,419				9,802				703				5,770
Residential	559				348				221				569				4				1,930
Consumer & Other	—				—				—				—				—				—
Total	$	24,243			$	15,122			$	6,445			$	21,567			$	1,550			$	27,490
There were no loans over 90 days past due and still accruing interest at March 31, 2014. If interest on impaired loans would have been accrued based upon the original contractual terms, such income would have been $0.3 million and $0.8 million for the three months ended March 31, 2014 and 2013, respectively. The cash amount collected and recognized as interest income on impaired loans was $9,000 and $15,000 for the three months ended March 31, 2014 and 2013, respectively. There was $6,000 of interest income recognized on impaired loans continuing to accrue interest for the three months ended March 31, 2014 and $29,000 for the three months ended March 31, 2013, respectively. At March 31, 2014, there were $0.2 million of unadvanced commitments on impaired loans. Other liabilities include approximately $0.2 million for estimated losses attributable to the unadvanced commitments.
The recorded investment in impaired Portfolio loans by category at March 31, 2014, and December 31, 2013, is as follows:
	March 31, 2014
(in thousands)	Non-accrual				Restructured				Loans over 90 days past due and still accruing interest				Total
Commercial & Industrial	$	4,449			$	—			$	—			$	4,449
Real Estate:
Commercial - Investor Owned	—				679				—				679
Commercial - Owner Occupied	1,648				792				—				2,440
Construction and Land Development	8,049				—				—				8,049
Residential	438				—				—				438
Consumer & Other	—				—				—				—
Total	$	14,584			$	1,471			$	—			$	16,055
	December 31, 2013
(in thousands)	Non-accrual				Restructured				Loans over 90 days past due and still accruing interest				Total
Commercial & Industrial	$	3,384			$	—			$	—			$	3,384
Real Estate:
Commercial - Investor Owned	6,511				678				—				7,189
Commercial - Owner Occupied	622				—				—				622
Construction and Land Development	9,802				—				—				9,802
Residential	569				—				—				569
Consumer & Other	—				—				—				—
Total	$	20,888			$	678			$	—			$	21,566
The recorded investment by category for the Portfolio loans that have been restructured during the three months ended March 31, 2014 and 2013, is as follows:
	Three months ended March 31, 2014											Three months ended March 31, 2013
(in thousands, except for number of loans)	Number of Loans			Pre-Modification Outstanding				Post-Modification Outstanding				Number of Loans			Pre-Modification Outstanding				Post-Modification Outstanding
				Recorded Balance				Recorded Balance							Recorded Balance				Recorded Balance
Commercial & Industrial	—			$	—			$	—			1			$	5			$	5
Real Estate:
Commercial - Owner Occupied	2			1,292				1,042				—			—				—
Commercial - Investor Owned	—			—				—				—			—				—
Construction and Land Development	—			—				—				—			—				—
Residential	—			—				—				—			—				—
Consumer & Other	—			—				—				—			—				—
Total	2			$	1,292			$	1,042			1			$	5			$	5
The restructured Portfolio loans resulted from interest rate concessions and changing the terms of the loans. As of March 31, 2014, the Company allocated $0.4 million of specific reserves to the loans that have been restructured.
There were no Portfolio loans that have been restructured and subsequently defaulted in the three months ended March 31, 2014 and 2013.
The aging of the recorded investment in past due Portfolio loans by portfolio class and category at March 31, 2014, and December 31, 2013, is shown below.
	March 31, 2014
(in thousands)	30-89 Days				90 or More				Total				Current				Total
	Past Due				Days				Past Due
					Past Due
Commercial & Industrial	$	114			$	—			$	114			$	1,060,254			$	1,060,368
Real Estate:
Commercial - Owner Occupied	2,010				1,195				3,205				364,095				367,300
Commercial - Investor Owned	6,992				—				6,992				409,785				416,777
Construction and Land Development	—				5,955				5,955				115,914				121,869
Residential	370				206				576				159,619				160,195
Consumer & Other	51				—				51				47,428				47,479
Total	$	9,537			$	7,356			$	16,893			$	2,157,095			$	2,173,988
	December 31, 2013
(in thousands)	30-89 Days				90 or More				Total				Current				Total
	Past Due				Days				Past Due
					Past Due
Commercial & Industrial	$	229			$	—			$	229			$	1,041,347			$	1,041,576
Real Estate:
Commercial - Owner Occupied	—				428				428				341,203				341,631
Commercial - Investor Owned	—				6,132				6,132				431,556				437,688
Construction and Land Development	464				7,344				7,808				109,224				117,032
Residential	237				213				450				158,077				158,527
Consumer & Other	—				—				—				40,859				40,859
Total	$	930			$	14,117			$	15,047			$	2,122,266			$	2,137,313
The Company categorizes loans into risk categories based on relevant information about the ability of borrowers to service their debt, such as current financial information, historical payment experience, credit documentation, and current economic factors, among other factors. This analysis is performed on a quarterly basis. The Company uses the following definitions for risk ratings:
•	Grades 1, 2, and 3- These grades include loans to borrowers with a continuous record of strong earnings, sound balance sheet condition and capitalization, ample liquidity with solid cash flow, and whose management team has experience and depth within their industry.
•	Grade 4- This grade includes loans to borrowers with positive trends in profitability, satisfactory capitalization and balance sheet condition, and sufficient liquidity and cash flow.
•	Grade 5- This grade includes loans to borrowers that may display fluctuating trends in sales, profitability, capitalization, liquidity, and cash flow.
•	Grade 6- This grade includes loans to borrowers where an adverse change or perceived weakness has occurred, but may be correctable in the near future. Alternatively, this rating category may also include circumstances where the borrower is starting to reverse a negative trend or condition, or has recently been upgraded from a 7, 8, or 9 rating.
•	Grade 7 - Watch credits are borrowers that have experienced financial setback of a nature that is not determined to be severe or influence ‘ongoing concern’ expectations. Borrowers within this category are expected to turnaround within a 12-month period of time. Although possible, no loss is anticipated, due to strong collateral and/or guarantor support.
•	Grade 8- Substandard credits will include those borrowers that are characterized by significant losses and sustained downward trends in balance sheet condition, liquidity, and cash flow. Repayment reliance may have shifted to secondary sources. Collateral exposure may exist and additional reserves may be warranted.
•	Grade 9- Doubtful credits include borrowers that may show deteriorating trends that are unlikely to be corrected. Collateral values may appear insufficient for full recovery, therefore requiring a partial charge-off, or debt renegotiation with the borrower. The borrower may have declared bankruptcy or bankruptcy is likely in the near term. All doubtful rated credits will be on non-accrual.
The recorded investment by risk category of the Portfolio loans by portfolio class and category at March 31, 2014, which is based upon the most recent analysis performed, and December 31, 2013 is as follows:
	March 31, 2014
(in thousands)	Pass (1-6)				Watch (7)				Substandard (8)				Doubtful (9)				Total
Commercial & Industrial	$	989,558			$	48,011			$	21,288			$	1,511			$	1,060,368
Real Estate:
Commercial - Owner Occupied	334,423				23,392				9,485				—				367,300
Commercial - Investor Owned	354,875				41,842				20,060				—				416,777
Construction and Land Development	93,251				17,395				10,771				452				121,869
Residential	145,402				8,179				6,614				—				160,195
Consumer & Other	47,203				60				216				—				47,479
Total	$	1,964,712			$	138,879			$	68,434			$	1,963			$	2,173,988
	December 31, 2013
(in thousands)	Pass (1-6)				Watch (7)				Substandard (8)				Doubtful (9)				Total
Commercial & Industrial	$	977,199			$	40,265			$	23,934			$	178			$	1,041,576
Real Estate:
Commercial - Owner Occupied	306,321				26,500				8,810				—				341,631
Commercial - Investor Owned	368,433				42,227				27,028				—				437,688
Construction and Land Development	87,812				17,175				11,582				463				117,032
Residential	143,613				8,240				6,674				—				158,527
Consumer & Other	40,852				3				4				—				40,859
Total	$	1,924,230			$	134,410			$	78,032			$	641			$	2,137,313

Portfolio_Loans_Covered_by_Los

Portfolio Loans Covered by Loss Share (Covered loans)	3 Months Ended
	Mar. 31, 2014
PORTFOLIO LOANS COVERED BY LOSS SHARE [Abstract]	'
Portfolio Loans Covered by Loss Share (Covered loans)	'
	Below is a summary of PCI loans by category at March 31, 2014, and December 31, 2013:
		March 31, 2014				December 31, 2013
	(in thousands)	Weighted-	Recorded			Weighted-	Recorded
		Average	Investment			Average	Investment
		Risk Rating	PCI Loans			Risk Rating	PCI Loans
	Real Estate Loans:
	Construction and land development	6.86		$12,320		6.84		$14,325
	Commercial real estate - Investor owned	7.01	44,103			6.81	48,146
	Commercial real estate - Owner occupied	6.66	30,246			6.75	32,525
	Residential real estate	5.89	32,727			5.92	34,498
	Total real estate loans			$119,396				$129,494
	Commercial and industrial	6.85	8,716			6.87	9,271
	Consumer and other	4.4	560			6.47	1,773
	Portfolio loans			$128,672				$140,538
	The aging of the recorded investment in past due PCI loans by portfolio class and category at March 31, 2014, and December 31, 2013, is shown below.
		March 31, 2014
	(in thousands)	30-89 Days			90 or More				Total			Current			Total
		Past Due			Days				Past Due
					Past Due
	Commercial & Industrial	$	497		$	485			$	982		$	7,734		$	8,716
	Real Estate:
	Commercial - Owner Occupied	66			6,213				6,279			23,967			30,246
	Commercial - Investor Owned	3,125			4,788				7,913			36,190			44,103
	Construction and Land Development	—			3,580				3,580			8,740			12,320
	Residential	1,000			2,679				3,679			29,048			32,727
	Consumer & Other	6			—				6			554			560
	Total	$	4,694		$	17,745			$	22,439		$	106,233		$	128,672
		December 31, 2013
	(in thousands)	30-89 Days			90 or More				Total			Current			Total
		Past Due			Days				Past Due
					Past Due
	Commercial & Industrial	$	397		$	573			$	970		$	8,301		$	9,271
	Real Estate:
	Commercial - Owner Occupied	255			6,595				6,850			25,675			32,525
	Commercial - Investor Owned	5,143			3,167				8,310			39,836			48,146
	Construction and Land Development	32			4,198				4,230			10,095			14,325
	Residential	639			5,276				5,915			28,583			34,498
	Consumer & Other	—			—				—			1,773			1,773
	Total	$	6,466		$	19,809			$	26,275		$	114,263		$	140,538
	The following table is a rollforward of PCI loans, net of the allowance for loan losses, for the three months ended March 31, 2014 and 2013.
	(In thousands)	Contractual Cashflows			Less:				Less: Accretable Yield			Carrying Amount
					Non-accretable Difference
	Balance January 1, 2014	$	266,068		$	87,438			$	53,530		$	125,100
	Principal reductions and interest payments	(9,849		)	—				—			(9,849		)
	Accretion of loan discount	—			—				(4,560		)	4,560
	Changes in contractual and expected cash flows due to remeasurement	4,888			10,503				(5,076		)	(539		)
	Reductions due to disposals	(14,297		)	(3,142		)		(2,042		)	(9,113		)
	Balance March 31, 2014	$	246,810		$	94,799			$	41,852		$	110,159
	Balance January 1, 2013	$	386,966		$	118,627			$	78,768		$	189,571
	Principal reductions and interest payments	(13,083		)	—				—			(13,083		)
	Accretion of loan discount	—			—				(7,112		)	7,112
	Changes in contractual and expected cash flows due to remeasurement	(3,099		)	(4,084		)		599			386
	Reductions due to disposals	(35,274		)	(14,641		)		(5,956		)	(14,677		)
	Balance March 31, 2013	$	335,510		$	99,902			$	66,299		$	169,309
	The accretable yield is accreted into interest income over the estimated life of the acquired loans using the effective
	yield method.
	A summary of activity in the FDIC loss share receivable for the three months ended March 31, 2014 is as follows:
	(In thousands)	March 31,
		2014
	Balance at beginning of period	$	34,319
	Adjustments not reflected in income:
	Cash received from the FDIC for covered assets	(2,255		)
	FDIC reimbursable losses, net	127
Adjustments reflected in income:
Amortization, net	(3,195		)
Loan impairment	2,642
Reductions for payments on covered assets in excess of expected cash flows	(1,857		)
Balance at end of period	$	29,781
Due to continued favorable projections in the expected cash flows, the Company continues to anticipate that it will be required to pay the FDIC at the end of two of its loss share agreements. Accordingly, a liability of $1.5 million has been recorded at March 31, 2014. The liability will continue to be adjusted as part of the quarterly remeasurement process through the end of the loss share agreements.

Commitments_and_Contingencies

Commitments and Contingencies	3 Months Ended
	Mar. 31, 2014
Commitments and Contingencies Disclosure [Abstract]	'
Commitments and Contingencies	'
	COMMITMENTS AND CONTINGENCIES
	The Company issues financial instruments with off balance sheet risk in the normal course of the business of meeting the financing needs of its customers. These financial instruments include commitments to extend credit and standby letters of credit. These instruments may involve, to varying degrees, elements of credit and interest rate risk in excess of the amounts recognized in the consolidated balance sheets.
	The Company’s extent of involvement and maximum potential exposure to credit loss under commitments to extend credit and standby letters of credit in the event of nonperformance by the other party to the financial instrument is represented by the contractual amount of these instruments.
	The Company uses the same credit policies in making commitments and conditional obligations as it does for financial instruments included on its consolidated balance sheets. At March 31, 2014, there were $0.2 million of unadvanced commitments on impaired loans compared to $0.1 million at December 31, 2013. Other liabilities include approximately $0.2 million at both March 31, 2014 and December 31, 2013 for estimated losses attributable to the unadvanced commitments.
	The contractual amounts of off-balance-sheet financial instruments as of March 31, 2014, and December 31, 2013, are as follows:
	(in thousands)	March 31,		December 31,
		2014		2013
	Commitments to extend credit	$	779,698	$	804,420
	Standby letters of credit	43,268		44,376
	Commitments to extend credit are agreements to lend to a customer as long as there is no violation of any condition established in the contract. Commitments usually have fixed expiration dates or other termination clauses, may have significant usage restrictions, and may require payment of a fee. Of the total commitments to extend credit at March 31, 2014, and December 31, 2013, approximately $64.1 million and $50.3 million, respectively, represent fixed rate loan commitments. Since certain of the commitments may expire without being drawn upon or may be revoked, the total commitment amounts do not necessarily represent future cash requirements. The Company evaluates each customer’s credit worthiness on a case-by-case basis. The amount of collateral obtained, if deemed necessary by the Company upon extension of credit, is based on management’s credit evaluation of the borrower. The type of collateral held varies, but may include accounts receivable, inventory, premises and equipment, and real estate.
	Standby letters of credit are conditional commitments issued by the Company to guarantee the performance of a customer to a third party. These standby letters of credit are issued to support contractual obligations of the Company’s customers. The credit risk involved in issuing letters of credit is essentially the same as the risk involved in extending loans to customers. The approximate remaining terms of standby letters of credit range from 1 month to 4 years at March 31, 2014.
	Contingencies
	The Company and its subsidiaries are, from time to time, parties to various legal proceedings arising out of their businesses. Management believes that there are no such proceedings pending or threatened against the Company or its subsidiaries which, if determined adversely, would have a material adverse effect on the business, consolidated financial condition, results of operations or cash flows of the Company or any of its subsidiaries.

Derivative_Financial_Instrumen

Derivative Financial Instruments	3 Months Ended
	Mar. 31, 2014
Derivative Instruments and Hedging Activities Disclosure [Abstract]	'
Derivative Financial Instruments	'
	DERIVATIVE FINANCIAL INSTRUMENTS
	Risk Management Instruments. The Company enters into certain derivative contracts to economically hedge state tax credits and certain loans.
	•	Economic hedge of state tax credits. In November 2008, the Company paid $2.1 million to enter into a series of interest rate caps in order to economically hedge changes in fair value of the state tax credits held for sale. In February 2010, the Company paid $751,000 for an additional series of interest rate caps. See Note 8—Fair Value Measurements for further discussion of the fair value of the state tax credits.
	The table below summarizes the notional amounts and fair values of the derivative instruments used to manage risk.
										Asset Derivatives				Liability Derivatives
										(Other Assets)				(Other Liabilities)
		Notional Amount								Fair Value				Fair Value
	(in thousands)	March 31,				December 31,				March 31,		December 31,		March 31,		December 31,
		2014				2013				2014		2013		2014		2013
	Non-designated hedging instruments
	Interest rate cap contracts	$	23,800			$	23,800			$	10	$	10	$	—	$	—
	The following table shows the location and amount of gains and losses related to derivatives used for risk management purposes that were recorded in the condensed consolidated statements of operations for the three months ended March 31, 2014 and 2013.
		Location of Gain or (Loss) Recognized in Operations on Derivative		Amount of Gain or (Loss) Recognized in Operations on Derivative
				Three months ended March 31,
	(in thousands)			2014				2013
	Non-designated hedging instruments
	Interest rate cap contracts	Gain on state tax credits, net		$	—			$	(1	)
	Client-Related Derivative Instruments. As an accommodation to certain customers, the Company enters into interest rate swaps to economically hedge changes in fair value of certain loans. The table below summarizes the notional amounts and fair values of the client-related derivative instruments.
										Asset Derivatives				Liability Derivatives
										(Other Assets)				(Other Liabilities)
		Notional Amount								Fair Value				Fair Value
	(in thousands)	March 31,				December 31,				March 31,		December 31,		March 31,		December 31,
		2014				2013				2014		2013		2014		2013
	Non-designated hedging instruments
	Interest rate swap contracts	$	180,809			$	185,213			$	968	$	990	$	968	$	990
	Changes in the fair value of client-related derivative instruments are recognized currently in operations. The following table shows the location and amount of gains and losses recorded in the condensed consolidated statements of operations for the three months ended March 31, 2014 and 2013. For the three months ended March 31, 2014 the Company has entered into derivative contracts with third parties to fully offset the client-related derivative instruments. Accordingly, there was no fair value adjustment recorded.
		Location of Gain or (Loss) Recognized in Operations on Derivative		Amount of Gain or (Loss) Recognized in Operations on Derivative
				Three months ended March 31,
	(in thousands)			2014				2013
	Non-designated hedging instruments
	Interest rate swap contracts	Interest and fees on loans		$	—			$	(105	)

Fair_Value_Measurements

Fair Value Measurements	3 Months Ended
	Mar. 31, 2014
Fair Value Disclosures [Abstract]	'
Fair Value Measurements	'
	FAIR VALUE MEASUREMENTS
	Below is a description of certain assets and liabilities measured at fair value.
	The following table summarizes financial instruments measured at fair value on a recurring basis as of March 31, 2014, segregated by the level of the valuation inputs within the fair value hierarchy utilized to measure fair value.
		March 31, 2014
	(in thousands)	Quoted Prices in			Significant			Significant		Total Fair
		Active Markets			Other			Unobservable		Value
		for Identical Assets			Observable Inputs			Inputs
		(Level 1)			(Level 2)			(Level 3)
	Assets
	Securities available for sale
	Obligations of U.S. Government-sponsored enterprises	$	—		$	93,151		$	—	$	93,151
	Obligations of states and political subdivisions	—			46,549			3,046		49,595
	Agency mortgage-backed securities	—			313,313			—		313,313
	Total securities available for sale	$	—		$	453,013		$	3,046	$	456,059
	State tax credits held for sale	—			—			14,900		14,900
	Derivative financial instruments	—			978			—		978
	Total assets	$	—		$	453,991		$	17,946	$	471,937
	Liabilities
	Derivative financial instruments	$	—		$	968		$	—	$	968
	Total liabilities	$	—		$	968		$	—	$	968
	•	Securities available for sale. Securities classified as available for sale are reported at fair value utilizing Level 2 and Level 3 inputs. The Company obtains fair value measurements from an independent pricing service. Fair values for Level 2 securities are based upon dealer quotes, market spreads, the U.S. Treasury yield curve, trade execution data, market consensus prepayment speeds, credit information and the bond's terms and conditions at the security level. At March 31, 2014, Level 3 securities available for sale consist primarily of three Auction Rate Securities that are valued based on the securities' estimated cash flows, yields of comparable securities, and live trading levels.
	•	Portfolio Loans. Certain fixed rate portfolio loans are accounted for as trading instruments and reported at fair value. Fair value on these loans is determined using a third party valuation model with observable Level 2 market data inputs.
	•	State tax credits held for sale. At March 31, 2014, of the $45.7 million of state tax credits held for sale on the condensed consolidated balance sheet, approximately $14.9 million were carried at fair value. The remaining $30.8 million of state tax credits were accounted for at cost.
	The Company is not aware of an active market that exists for the 10-year streams of state tax credit financial instruments. However, the Company’s principal market for these tax credits consists of Missouri state residents who buy these credits and from local and regional accounting firms who broker them. As such, the Company employed a discounted cash flow analysis (income approach) to determine the fair value.
	The fair value measurement is calculated using an internal valuation model with observable market data including discounted cash flows based upon the terms and conditions of the tax credits. If the underlying project remains in compliance with the various federal and state rules governing the tax credit program, each project will generate about 10 years of tax credits. The inputs to the discounted cash flow calculation include: the amount of tax credits generated each year, the anticipated sale price of the tax credit, the timing of the sale and a discount rate. The discount rate is estimated using the LIBOR swap curve at a point equal to the remaining life in years of credits plus a 205 basis point spread. With the exception of the discount rate, the other inputs to the fair value calculation are observable and readily available. The discount rate is considered a Level 3 input because it is an “unobservable input” and is based on the Company’s assumptions. An increase in the discount rate utilized would generally result in a lower estimated fair value of the tax credits. Alternatively, a decrease in the discount rate utilized would generally result in a higher estimated fair value of the tax credits. Given the significance of this input to the fair value calculation, the state tax credit assets are reported as Level 3 assets.
	•	Derivatives. Derivatives are reported at fair value utilizing Level 2 inputs. The Company obtains counterparty quotations to value its interest rate swaps and caps. In addition, the Company validates the counterparty quotations with third party valuation sources. Derivatives with negative fair values are included in Other liabilities in the consolidated balance sheets. Derivatives with positive fair value are included in Other assets in the consolidated balance sheets.
	Level 3 financial instruments
	The following table presents the changes in Level 3 financial instruments measured at fair value on a recurring basis for the periods ended March 31, 2014 and 2013, respectively.
	•	Purchases, sales, issuances and settlements, net. There were no Level 3 purchases during the quarter ended March 31, 2014 or 2013.
	•	Transfers in and/or out of Level 3. There were no Level 3 transfers during the quarter ended March 31, 2014 or 2013.
		Securities available for sale, at fair value
		Three months ended March 31,
	(in thousands)	2014			2013
	Beginning balance	$	3,040		$	3,049
	Total (losses) gains:
	Included in other comprehensive income	6			2
	Purchases, sales, issuances and settlements:
	Purchases	—			—
	Transfer in and/or out of Level 3	—			—
	Ending balance	$	3,046		$	3,051
	Change in unrealized (losses) gains relating to	$	6		$	2
	assets still held at the reporting date
		State tax credits held for sale
		Three months ended March 31,
	(in thousands)	2014			2013
	Beginning balance	$	16,491		$	23,020
	Total gains:
	Included in earnings	118			156
	Purchases, sales, issuances and settlements:
	Sales	(1,709		)	(3,123		)
	Ending balance	$	14,900		$	20,053
	Change in unrealized gains relating to	$	(334	)	$	(674	)
	assets still held at the reporting date
	From time to time, the Company measures certain assets at fair value on a nonrecurring basis. These include assets that are measured at the lower of cost or fair value that were recognized at fair value below cost at the end of the period. The following table presents financial instruments and non-financial assets measured at fair value on a non-recurring basis as of March 31, 2014:
		-1			-1			-1		-1
	(in thousands)	Total Fair Value			Quoted Prices in Active			Significant		Significant		Total losses for the
					Markets for			Other		Unobservable		three months ended
					Identical			Observable		Inputs		31-Mar-14
					Assets			Inputs		(Level 3)
					(Level 1)			(Level 2)
	Impaired loans	$	3,035		$	—		$	—	$	3,035	$	(1,369	)
	Other real estate	3,756			—			—		3,756		(344		)
	Total	$	6,791		$	—		$	—	$	6,791	$	(1,713	)
(1) The amounts represent only balances measured at fair value during the period and still held as of the reporting date.
Impaired loans are reported at the fair value of the underlying collateral or by determining the net present value of future cash flows. Fair values for collateral dependent impaired loans are obtained from current appraisals by qualified licensed appraisers or independent valuation specialists. Fair values of impaired loans that are not collateral dependent are determined by using a discounted cash flow model to determine the net present value of future cash flows. Other real estate owned is adjusted to fair value upon foreclosure of the loan collateral. Subsequently, foreclosed assets are carried at the lower of carrying value or fair value less costs to sell. Fair value of other real estate is based upon the current appraised values of the properties as determined by qualified licensed appraisers and the Company’s judgment of other relevant market conditions.
Following is a summary of the carrying amounts and fair values of the Company’s financial instruments on the consolidated balance sheets at March 31, 2014, and December 31, 2013.
	March 31, 2014						December 31, 2013
(in thousands)	Carrying Amount			Estimated fair value			Carrying Amount		Estimated fair value
Balance sheet assets
Cash and due from banks	$	35,260		$	35,260		$	19,573	$	19,573
Federal funds sold	56			56			76		76
Interest-bearing deposits	107,635			107,635			196,220		196,220
Securities available for sale	456,059			456,059			434,587		434,587
Other investments, at cost	14,944			14,944			12,605		12,605
Loans held for sale	1,901			1,901			1,834		1,834
Derivative financial instruments	978			978			1,000		1,000
Portfolio loans, net	2,256,242			2,251,063			2,235,124		2,232,134
State tax credits, held for sale	45,660			49,517			48,457		52,159
Accrued interest receivable	7,476			7,476			7,303		7,303
Balance sheet liabilities
Deposits	2,452,118			2,457,394			2,534,953		2,540,822
Subordinated debentures	56,807			33,729			62,581		39,358
Federal Home Loan Bank advances	130,000			133,911			50,000		54,137
Other borrowings	190,318			190,348			214,331		214,377
Derivative financial instruments	968			968			990		990
Accrued interest payable	874			874			957		957
For information regarding the methods and assumptions used to estimate the fair value of each class of financial instruments for which it is practical to estimate such value, refer to Note 20–Fair Value Measurements in the Company’s Annual Report on Form 10-K for the year ended December 31, 2013.
The following table presents the level in the fair value hierarchy for the estimated fair values of only the Company’s financial instruments that are not already presented on the condensed consolidated balance sheets at fair value at March 31, 2014, and December 31, 2013:
	Estimated Fair Value Measurement at Reporting Date Using								Balance at
(in thousands)	Level 1			Level 2			Level 3		31-Mar-14
Financial Assets:
Portfolio loans, net	$	—		$	—		$	2,251,063	$	2,251,063
State tax credits, held for sale	$	—		$	—		$	34,617	$	34,617
Financial Liabilities:
Deposits	1,839,367			—			618,027		2,457,394
Subordinated debentures	—			33,729			—		33,729
Federal Home Loan Bank advances	—			133,911			—		133,911
Other borrowings	—			190,348			—		190,348
	Estimated Fair Value Measurement at Reporting Date Using								Balance at
(in thousands)	Level 1			Level 2			Level 3		31-Dec-13
Financial Assets:
Portfolio loans, net	$	—		$	—		$	2,232,134	$	2,232,134
State tax credits, held for sale	$	—		$	—		$	35,668	$	35,668
Financial Liabilities:
Deposits	1,902,038			—			638,784		2,540,822
Subordinated debentures	—			39,358			—		39,358
Federal Home Loan Bank advances	—			54,137			—		54,137
Other borrowings	—			214,377			—		214,377

Segment_Reporting

Segment Reporting	3 Months Ended
	Mar. 31, 2014
Segment Reporting [Abstract]	'
Segment Reporting	'
	SEGMENT REPORTING
	The Company has two primary operating segments, Banking and Wealth Management, which are delineated by the products and services that each segment offers. The segments are evaluated separately on their individual performance, as well as their contribution to the Company as a whole.
	The Banking operating segment consists of a full-service commercial bank, with locations in St. Louis, Kansas City, and Phoenix. The majority of the Company’s assets and income result from the Banking segment. All banking locations have the same product and service offerings, have similar types and classes of customers and utilize similar service delivery methods. Pricing guidelines and operating policies for products and services are the same across all regions.
	The Banking operating segment also includes activities surrounding the assets acquired under FDIC loss share agreements.
	The Wealth Management operating segment includes the Trust division of the Bank and the state tax credit brokerage activities. The Trust division provides estate planning, investment management, and retirement planning as well as strategic planning and management succession issues. State tax credits are part of a fee initiative designed to augment the Company’s Wealth Management segment and Banking lines of business.
	The Company's Corporate and Intercompany activities represent the elimination of items between segments as well as Corporate related items that management feels are not allocable to either of the two respective segments.
	The financial information for each business segment reflects that information which is specifically identifiable or which is allocated based on an internal allocation method. There were no material intersegment revenues among the two segments. Management periodically makes changes to methods of assigning costs and income to its business segments to better reflect operating results. When appropriate, these changes are reflected in prior year information presented below.
	Following are the financial results for the Company’s operating segments.
	(in thousands)	Banking		Wealth Management			Corporate and Intercompany			Total
		Three months ended March 31,
	Income Statement Information	2014
	Net interest income (expense)	$	30,820	$	(18	)	$	(436	)	$	30,366
	Provision for loan losses	4,331		—			—			4,331
	Noninterest income	1,699		2,217			6			3,922
	Noninterest expense	17,631		1,833			1,638			21,102
	Income (loss) before income tax expense (benefit)	10,557		366			(2,068		)	8,855
		2013
	Net interest income (expense)	$	37,857	$	7		$	(965	)	$	36,899
	Provision for loan losses	4,109		—			—			4,109
	Noninterest income	45		2,794			75			2,914
	Noninterest expense	16,724		2,056			1,505			20,285
	Income (loss) before income tax expense (benefit)	17,069		745			(2,395		)	15,419
	Balance Sheet Information	March 31, 2014					December 31, 2013
	Total assets:
	Banking	$	3,025,589				$	3,051,256
	Wealth Management	96,698					101,026
	Corporate and Intercompany	17,664					17,915
	Total	3,139,951					3,170,197

Summary_of_Significant_Account1

Summary of Significant Accounting Policies (Policies)	3 Months Ended
	Mar. 31, 2014
Accounting Policies [Abstract]	'
Marketable Securities, Available-for-sale Securities, Policy [Policy Text Block]	'
	Management systematically evaluates investment securities for other-than-temporary declines in fair value on a quarterly basis. This analysis requires management to consider various factors, which include (1) the present value of the cash flows expected to be collected compared to the amortized cost of the security, (2) duration and magnitude of the decline in value, (3) the financial condition of the issuer or issuers, (4) structure of the security and (5) the intent to sell the security or whether it is more likely than not that the Company would be required to sell the security before its anticipated recovery in market value.
Derivatives, Policy [Policy Text Block]	'
Basis of Accounitng and Consolidation, Policy	'
	Basis of Financial Statement Presentation
	The condensed consolidated financial statements of the Company and its subsidiaries have been prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”) for interim financial information and with the instructions to Form 10-Q and Rule 10-01 of Regulation S-X. They do not include all information and footnotes required by U.S. GAAP for annual financial statements. The condensed consolidated financial statements include the accounts of the Company and its subsidiaries, all of which are wholly owned. All intercompany accounts and transactions have been eliminated. In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation have been included.

Earnings_Per_Share_Tables

Earnings Per Share (Tables)	3 Months Ended
	Mar. 31, 2014
Earnings Per Share [Abstract]	'
Summary of Per Common Share Data and Amounts	'
	The following table presents a summary of per common share data and amounts for the periods indicated.
		Three months ended March 31,
	(in thousands, except per share data)	2014		2013
	Net income as reported	$	5,848	$	10,040
	Impact of assumed conversions
	Interest on 9% convertible trust preferred securities, net of income tax	66		354
	Net income available to common shareholders and assumed conversions	$	5,914	$	10,394
	Weighted average common shares outstanding	19,521		18,011
	Incremental shares from assumed conversions of convertible trust preferred securities	230		1,439
	Additional dilutive common stock equivalents	198		74
	Weighted average diluted common shares outstanding	19,949		19,524
	Basic earnings per common share:	$	0.3	$	0.56
	Diluted earnings per common share:	$	0.3	$	0.53

Investments_Tables

Investments (Tables)	3 Months Ended
	Mar. 31, 2014
Investments [Abstract]	'
Schedule of Available-for-sale Securities Reconciliation	'
	The following table presents the amortized cost, gross unrealized gains and losses and fair value of securities available-for-sale:
		March 31, 2014
	(in thousands)	Amortized Cost		Gross			Gross			Fair Value
				Unrealized Gains			Unrealized Losses
	Available for sale securities:
	Obligations of U.S. Government-sponsored enterprises	$	92,754	$	703		$	(306	)	$	93,151
	Obligations of states and political subdivisions	49,678		1,149			(1,232		)	49,595
	Agency mortgage-backed securities	317,754		2,720			(7,161		)	313,313
		$	460,186	$	4,572		$	(8,699	)	$	456,059
		December 31, 2013
	(in thousands)	Amortized Cost		Gross			Gross			Fair Value
				Unrealized Gains			Unrealized Losses
	Available for sale securities:
	Obligations of U.S. Government-sponsored enterprises	$	93,218	$	700		$	(388	)	$	93,530
	Obligations of states and political subdivisions	49,721		983			(1,761		)	48,943
	Agency mortgage-backed securities	298,623		2,675			(9,184		)	292,114
		$	441,562	$	4,358		$	(11,333	)	$	434,587
Investments Classified by Contractual Maturity Date	'
	The amortized cost and estimated fair value of debt securities classified as available for sale at March 31, 2014, by contractual maturity, are shown below. Expected maturities may differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties. The weighted average life of the mortgage-backed securities is approximately 5 years.
	(in thousands)	Amortized Cost		Estimated Fair Value
	Due in one year or less	$	1,262	$	1,276
	Due after one year through five years	109,526		110,475
	Due after five years through ten years	20,810		20,768
	Due after ten years	10,834		10,227
	Mortgage-backed securities	317,754		313,313
		$	460,186	$	456,059
Schedule of Unrealized Loss on Investments	'
	The following table represents a summary of available-for-sale investment securities that had an unrealized loss:
		March 31, 2014
		Less than 12 months					12 months or more					Total
	(in thousands)	Fair Value		Unrealized Losses			Fair Value			Unrealized Losses		Fair Value		Unrealized Losses
	Obligations of U.S. Government-sponsored enterprises	$	30,251	$	306		$	—		$	—	$	30,251	$	306
	Obligations of states and political subdivisions	$	11,700	$	419		$	8,874		$	813	$	20,574	$	1,232
	Agency mortgage-backed securities	166,999		5,339			26,167			1,822		193,166		7,161
		$	208,950	$	6,064		$	35,041		$	2,635	$	243,991	$	8,699
		December 31, 2013
		Less than 12 months					12 months or more					Total
	(in thousands)	Fair Value		Unrealized Losses			Fair Value			Unrealized Losses		Fair Value		Unrealized Losses
	Obligations of U.S. Government-sponsored enterprises	$	30,221	$	388		$	—		$	—	$	30,221	$	388
	Obligations of states and political subdivisions	17,141		952			7,168			809		24,309		1,761
	Agency mortgage-backed securities	159,999		7,338			21,437			1,846		181,436		9,184
		$	207,361	$	8,678		$	28,605		$	2,655	$	235,966	$	11,333
Schedule of Realized Gain (Loss)	'
	The gross gains and gross losses realized from sales of available-for-sale investment securities were as follows:
		Three months ended March 31,
	(in thousands)	2014		2013
	Gross gains realized	$	—	$	866
	Gross losses realized	—		(182		)
	Proceeds from sales	—		122,894

Portfolio_Loans_Not_Covered_by1

Portfolio Loans Not Covered by Loss Share ("Non-covered") (Tables) (Non-Covered Loans)	3 Months Ended
	Mar. 31, 2014
Non-Covered Loans	'
Non-covered Loans [Line Items]	'
Summary of Non-covered Loans by Category	'
	at March 31, 2014, and December 31, 2013:
	(in thousands)	March 31, 2014			December 31, 2013
	Real Estate Loans:
	Construction and land development	$	121,869		$	117,032
	Commercial real estate - Investor owned	416,777			437,688
	Commercial real estate - Owner occupied	367,300			341,631
	Residential real estate	160,195			158,527
	Total real estate loans	$	1,066,141		$	1,054,878
	Commercial and industrial	1,060,368			1,041,576
	Consumer and other	46,302			39,838
	Portfolio loans	$	2,172,811		$	2,136,292
	Unearned loan costs, net	1,177			1,021
	Portfolio loans, including unearned loan costs	$	2,173,988		$	2,137,313
Summary of Allowance for Loan Losses for Non-covered Loans by Portfolio Class and Category	'
	A summary of the year-to-date activity in the allowance for loan losses and the recorded investment in Portfolio loans by class and category based on impairment method through March 31, 2014, and at December 31, 2013, is as follows:
	(in thousands)	Commercial & Industrial			Commercial			Commercial			Construction and Land Development			Residential Real Estate		Consumer & Other			Total
					Real Estate			Real Estate
					Owner Occupied			Investor Owned
	Allowance for Loan Losses:
	Balance at	$	12,246		$	4,096		$	6,600		$	2,136		$	2,019	$	192		$	27,289
	31-Dec-13
	Provision charged to expense	899			589			(9		)	(532		)	16		64			1,027
	Losses charged off	(474		)	(336		)	(250		)	(305		)	—		(4		)	(1,369		)
	Recoveries	187			8			34			688			41		—			958
	Balance at	$	12,858		$	4,357		$	6,375		$	1,987		$	2,076	$	252		$	27,905
	31-Mar-14
	(in thousands)	Commercial & Industrial			Commercial			Commercial			Construction and Land Development			Residential Real Estate		Consumer & Other			Total
					Real Estate			Real Estate
					Owner Occupied			Investor Owned
	Balance March 31, 2014
	Allowance for Loan Losses - Ending Balance:
	Individually evaluated for impairment	$	1,472		$	401		$	—		$	386		$	11	$	—		$	2,270
	Collectively evaluated for impairment	11,386			3,956			6,375			1,601			2,065		252			25,635
	Total	$	12,858		$	4,357		$	6,375		$	1,987		$	2,076	$	252		$	27,905
	Loans - Ending Balance:
	Individually evaluated for impairment	$	5,046		$	2,232		$	678		$	7,729		$	430	$	—		$	16,115
	Collectively evaluated for impairment	1,055,322			365,068			416,099			114,140			159,765		47,479			2,157,873
	Total	$	1,060,368		$	367,300		$	416,777		$	121,869		$	160,195	$	47,479		$	2,173,988
	Balance at December 31, 2013
	Allowance for Loan Losses - Ending Balance:
	Individually evaluated for impairment	$	736		$	107		$	—		$	703		$	4	$	—		$	1,550
	Collectively evaluated for impairment	11,510			3,989			6,600			1,433			2,015		192			25,739
	Total	$	12,246		$	4,096		$	6,600		$	2,136		$	2,019	$	192		$	27,289
	Loans - Ending Balance:
	Individually evaluated for impairment	$	3,380		$	606		$	6,811		$	9,484		$	559	$	—		$	20,840
	Collectively evaluated for impairment	1,038,196			341,025			430,877			107,548			157,968		40,859			2,116,473
	Total	$	1,041,576		$	341,631		$	437,688		$	117,032		$	158,527	$	40,859		$	2,137,313
Summary of Non-covered Loans Individually Evaluated for Impairment by Category	'
	at March 31, 2014, and December 31, 2013, is as follows:
		March 31, 2014
	(in thousands)	Unpaid			Recorded			Recorded			Total			Related Allowance		Average
		Contractual			Investment			Investment			Recorded Investment					Recorded Investment
		Principal Balance			With No Allowance			With
								Allowance
	Commercial & Industrial	$	5,605		$	—		$	4,449		$	4,449		$	1,364	$	3,625
	Real Estate:
	Commercial - Owner Occupied	3,371			1,399			1,041			2,440			401		1,105
	Commercial - Investor Owned	678			679			—			679			—		3,593
	Construction and Land Development	8,225			7,595			454			8,049			386		8,185
	Residential	429			406			32			438			11		532
	Consumer & Other	—			—			—			—			—		—
	Total	$	18,308		$	10,079		$	5,976		$	16,055		$	2,162	$	17,040
		December 31, 2013
	(in thousands)	Unpaid			Recorded			Recorded			Total			Related Allowance		Average
		Contractual			Investment			Investment			Recorded Investment					Recorded Investment
		Principal Balance			With No Allowance			With
								Allowance
	Commercial & Industrial	$	4,377		$	—		$	3,384		$	3,384		$	736	$	6,574
	Real Estate:
	Commercial - Owner Occupied	606			201			421			622			107		1,868
	Commercial - Investor Owned	8,033			7,190			—			7,190			—		11,348
	Construction and Land Development	10,668			7,383			2,419			9,802			703		5,770
	Residential	559			348			221			569			4		1,930
	Consumer & Other	—			—			—			—			—		—
	Total	$	24,243		$	15,122		$	6,445		$	21,567		$	1,550	$	27,490
	at March 31, 2014, and December 31, 2013, is as follows:
		March 31, 2014
	(in thousands)	Non-accrual			Restructured			Loans over 90 days past due and still accruing interest			Total
	Commercial & Industrial	$	4,449		$	—		$	—		$	4,449
	Real Estate:
	Commercial - Investor Owned	—			679			—			679
	Commercial - Owner Occupied	1,648			792			—			2,440
	Construction and Land Development	8,049			—			—			8,049
	Residential	438			—			—			438
	Consumer & Other	—			—			—			—
	Total	$	14,584		$	1,471		$	—		$	16,055
		December 31, 2013
	(in thousands)	Non-accrual			Restructured			Loans over 90 days past due and still accruing interest			Total
	Commercial & Industrial	$	3,384		$	—		$	—		$	3,384
	Real Estate:
	Commercial - Investor Owned	6,511			678			—			7,189
	Commercial - Owner Occupied	622			—			—			622
	Construction and Land Development	9,802			—			—			9,802
	Residential	569			—			—			569
	Consumer & Other	—			—			—			—
	Total	$	20,888		$	678		$	—		$	21,566
Summary of Aging of Recorded Investment in Past Due Non-covered Loans by Portfolio Class and Category	'
	at March 31, 2014, and December 31, 2013, is shown below.
		March 31, 2014
	(in thousands)	30-89 Days			90 or More			Total			Current			Total
		Past Due			Days			Past Due
					Past Due
	Commercial & Industrial	$	114		$	—		$	114		$	1,060,254		$	1,060,368
	Real Estate:
	Commercial - Owner Occupied	2,010			1,195			3,205			364,095			367,300
	Commercial - Investor Owned	6,992			—			6,992			409,785			416,777
	Construction and Land Development	—			5,955			5,955			115,914			121,869
	Residential	370			206			576			159,619			160,195
	Consumer & Other	51			—			51			47,428			47,479
	Total	$	9,537		$	7,356		$	16,893		$	2,157,095		$	2,173,988
		December 31, 2013
	(in thousands)	30-89 Days			90 or More			Total			Current			Total
		Past Due			Days			Past Due
					Past Due
	Commercial & Industrial	$	229		$	—		$	229		$	1,041,347		$	1,041,576
	Real Estate:
	Commercial - Owner Occupied	—			428			428			341,203			341,631
	Commercial - Investor Owned	—			6,132			6,132			431,556			437,688
	Construction and Land Development	464			7,344			7,808			109,224			117,032
	Residential	237			213			450			158,077			158,527
	Consumer & Other	—			—			—			40,859			40,859
	Total	$	930		$	14,117		$	15,047		$	2,122,266		$	2,137,313
Summary of Recorded Investment by Risk Category of Non-covered Loans by Portfolio Class and Category	'
	at March 31, 2014, which is based upon the most recent analysis performed, and December 31, 2013 is as follows:
		March 31, 2014
	(in thousands)	Pass (1-6)			Watch (7)			Substandard (8)			Doubtful (9)			Total
	Commercial & Industrial	$	989,558		$	48,011		$	21,288		$	1,511		$	1,060,368
	Real Estate:
	Commercial - Owner Occupied	334,423			23,392			9,485			—			367,300
	Commercial - Investor Owned	354,875			41,842			20,060			—			416,777
	Construction and Land Development	93,251			17,395			10,771			452			121,869
	Residential	145,402			8,179			6,614			—			160,195
	Consumer & Other	47,203			60			216			—			47,479
	Total	$	1,964,712		$	138,879		$	68,434		$	1,963		$	2,173,988
		December 31, 2013
	(in thousands)	Pass (1-6)			Watch (7)			Substandard (8)			Doubtful (9)			Total
	Commercial & Industrial	$	977,199		$	40,265		$	23,934		$	178		$	1,041,576
	Real Estate:
	Commercial - Owner Occupied	306,321			26,500			8,810			—			341,631
	Commercial - Investor Owned	368,433			42,227			27,028			—			437,688
	Construction and Land Development	87,812			17,175			11,582			463			117,032
	Residential	143,613			8,240			6,674			—			158,527
	Consumer & Other	40,852			3			4			—			40,859
	Total	$	1,924,230		$	134,410		$	78,032		$	641		$	2,137,313

Portfolio_Loans_Covered_by_Los1

Portfolio Loans Covered by Loss Share (Covered loans) (Tables)	3 Months Ended
	Mar. 31, 2014
Covered Loans [Line Items]	'
Summary of Covered Loans by Category	'
	at March 31, 2014, and December 31, 2013:
		March 31, 2014				December 31, 2013
	(in thousands)	Weighted-	Recorded			Weighted-	Recorded
		Average	Investment			Average	Investment
		Risk Rating	PCI Loans			Risk Rating	PCI Loans
	Real Estate Loans:
	Construction and land development	6.86		$12,320		6.84		$14,325
	Commercial real estate - Investor owned	7.01	44,103			6.81	48,146
	Commercial real estate - Owner occupied	6.66	30,246			6.75	32,525
	Residential real estate	5.89	32,727			5.92	34,498
	Total real estate loans			$119,396				$129,494
	Commercial and industrial	6.85	8,716			6.87	9,271
	Consumer and other	4.4	560			6.47	1,773
	Portfolio loans			$128,672				$140,538
Rollforward of Covered Loans [Table Text Block]	'
	, for the three months ended March 31, 2014 and 2013.
	(In thousands)	Contractual Cashflows			Less:				Less: Accretable Yield			Carrying Amount
					Non-accretable Difference
	Balance January 1, 2014	$	266,068		$	87,438			$	53,530		$	125,100
	Principal reductions and interest payments	(9,849		)	—				—			(9,849		)
	Accretion of loan discount	—			—				(4,560		)	4,560
	Changes in contractual and expected cash flows due to remeasurement	4,888			10,503				(5,076		)	(539		)
	Reductions due to disposals	(14,297		)	(3,142		)		(2,042		)	(9,113		)
	Balance March 31, 2014	$	246,810		$	94,799			$	41,852		$	110,159
	Balance January 1, 2013	$	386,966		$	118,627			$	78,768		$	189,571
	Principal reductions and interest payments	(13,083		)	—				—			(13,083		)
	Accretion of loan discount	—			—				(7,112		)	7,112
	Changes in contractual and expected cash flows due to remeasurement	(3,099		)	(4,084		)		599			386
	Reductions due to disposals	(35,274		)	(14,641		)		(5,956		)	(14,677		)
	Balance March 31, 2013	$	335,510		$	99,902			$	66,299		$	169,309
FDIC Loss Share Receivable [Table Text Block]	'
	A summary of activity in the FDIC loss share receivable for the three months ended March 31, 2014 is as follows:
	(In thousands)	March 31,
		2014
	Balance at beginning of period	$	34,319
	Adjustments not reflected in income:
	Cash received from the FDIC for covered assets	(2,255		)
	FDIC reimbursable losses, net	127
	Adjustments reflected in income:
	Amortization, net	(3,195		)
	Loan impairment	2,642
	Reductions for payments on covered assets in excess of expected cash flows	(1,857		)
	Balance at end of period	$	29,781
Covered Loans	'
Covered Loans [Line Items]	'
Summary of Aging of the Recorded Investment in Past Due Covered Loans by Portfolio Class and Category	'
	March 31, 2014, and December 31, 2013, is shown below.
		March 31, 2014
	(in thousands)	30-89 Days			90 or More				Total			Current			Total
		Past Due			Days				Past Due
					Past Due
	Commercial & Industrial	$	497		$	485			$	982		$	7,734		$	8,716
	Real Estate:
	Commercial - Owner Occupied	66			6,213				6,279			23,967			30,246
	Commercial - Investor Owned	3,125			4,788				7,913			36,190			44,103
	Construction and Land Development	—			3,580				3,580			8,740			12,320
	Residential	1,000			2,679				3,679			29,048			32,727
	Consumer & Other	6			—				6			554			560
	Total	$	4,694		$	17,745			$	22,439		$	106,233		$	128,672
		December 31, 2013
	(in thousands)	30-89 Days			90 or More				Total			Current			Total
		Past Due			Days				Past Due
					Past Due
	Commercial & Industrial	$	397		$	573			$	970		$	8,301		$	9,271
	Real Estate:
	Commercial - Owner Occupied	255			6,595				6,850			25,675			32,525
	Commercial - Investor Owned	5,143			3,167				8,310			39,836			48,146
	Construction and Land Development	32			4,198				4,230			10,095			14,325
	Residential	639			5,276				5,915			28,583			34,498
	Consumer & Other	—			—				—			1,773			1,773
	Total	$	6,466		$	19,809			$	26,275		$	114,263		$	140,538

Commitments_and_Contingencies_

Commitments and Contingencies (Tables)	3 Months Ended
	Mar. 31, 2014
Commitments and Contingencies Disclosure [Abstract]	'
Schedule of Commitments	'
	The contractual amounts of off-balance-sheet financial instruments as of March 31, 2014, and December 31, 2013, are as follows:
	(in thousands)	March 31,		December 31,
		2014		2013
	Commitments to extend credit	$	779,698	$	804,420
	Standby letters of credit	43,268		44,376

Derivative_Financial_Instrumen1

Derivative Financial Instruments (Tables)	3 Months Ended
	Mar. 31, 2014
Derivative Instruments and Hedging Activities Disclosure [Abstract]	'
Schedule of Derivatives Not Designated as Hedging Instruments, Notional Amount And Statements of Financial Position, Location	'
	The table below summarizes the notional amounts and fair values of the derivative instruments used to manage risk.
										Asset Derivatives				Liability Derivatives
										(Other Assets)				(Other Liabilities)
		Notional Amount								Fair Value				Fair Value
	(in thousands)	March 31,				December 31,				March 31,		December 31,		March 31,		December 31,
		2014				2013				2014		2013		2014		2013
	Non-designated hedging instruments
	Interest rate cap contracts	$	23,800			$	23,800			$	10	$	10	$	—	$	—
	The table below summarizes the notional amounts and fair values of the client-related derivative instruments.
										Asset Derivatives				Liability Derivatives
										(Other Assets)				(Other Liabilities)
		Notional Amount								Fair Value				Fair Value
	(in thousands)	March 31,				December 31,				March 31,		December 31,		March 31,		December 31,
		2014				2013				2014		2013		2014		2013
	Non-designated hedging instruments
	Interest rate swap contracts	$	180,809			$	185,213			$	968	$	990	$	968	$	990
Schedule of Derivative Instruments, Gain (Loss) in Statement of Financial Performance	'
	The following table shows the location and amount of gains and losses related to derivatives used for risk management purposes that were recorded in the condensed consolidated statements of operations for the three months ended March 31, 2014 and 2013.
		Location of Gain or (Loss) Recognized in Operations on Derivative		Amount of Gain or (Loss) Recognized in Operations on Derivative
				Three months ended March 31,
	(in thousands)			2014				2013
	Non-designated hedging instruments
	Interest rate cap contracts	Gain on state tax credits, net		$	—			$	(1	)
	The following table shows the location and amount of gains and losses recorded in the condensed consolidated statements of operations for the three months ended March 31, 2014 and 2013. For the three months ended March 31, 2014 the Company has entered into derivative contracts with third parties to fully offset the client-related derivative instruments. Accordingly, there was no fair value adjustment recorded.
		Location of Gain or (Loss) Recognized in Operations on Derivative		Amount of Gain or (Loss) Recognized in Operations on Derivative
				Three months ended March 31,
	(in thousands)			2014				2013
	Non-designated hedging instruments
	Interest rate swap contracts	Interest and fees on loans		$	—			$	(105	)
	At both March 31, 2014 and December 31, 2013, the Company had $1.0 million of counterparty credit exposure on derivatives. At both March 31, 2014, and December 31, 2013, the Company had pledged cash of $1.0 million, as collateral in connection with our interest rate swap agreements.

Fair_Value_Measurements_Tables

Fair Value Measurements (Tables)	3 Months Ended
	Mar. 31, 2014
Fair Value Disclosures [Abstract]	'
Financial Instruments Measured at Fair Value on a Recurring Basis	'
	The following table summarizes financial instruments measured at fair value on a recurring basis as of March 31, 2014, segregated by the level of the valuation inputs within the fair value hierarchy utilized to measure fair value.
		March 31, 2014
	(in thousands)	Quoted Prices in			Significant			Significant		Total Fair
		Active Markets			Other			Unobservable		Value
		for Identical Assets			Observable Inputs			Inputs
		(Level 1)			(Level 2)			(Level 3)
	Assets
	Securities available for sale
	Obligations of U.S. Government-sponsored enterprises	$	—		$	93,151		$	—	$	93,151
	Obligations of states and political subdivisions	—			46,549			3,046		49,595
	Agency mortgage-backed securities	—			313,313			—		313,313
	Total securities available for sale	$	—		$	453,013		$	3,046	$	456,059
	State tax credits held for sale	—			—			14,900		14,900
	Derivative financial instruments	—			978			—		978
	Total assets	$	—		$	453,991		$	17,946	$	471,937
	Liabilities
	Derivative financial instruments	$	—		$	968		$	—	$	968
	Total liabilities	$	—		$	968		$	—	$	968
Fair Value, Financial Instruments, Unobservable Input Reconciliation	'
		Securities available for sale, at fair value
		Three months ended March 31,
	(in thousands)	2014			2013
	Beginning balance	$	3,040		$	3,049
	Total (losses) gains:
	Included in other comprehensive income	6			2
	Purchases, sales, issuances and settlements:
	Purchases	—			—
	Transfer in and/or out of Level 3	—			—
	Ending balance	$	3,046		$	3,051
	Change in unrealized (losses) gains relating to	$	6		$	2
	assets still held at the reporting date
		State tax credits held for sale
		Three months ended March 31,
	(in thousands)	2014			2013
	Beginning balance	$	16,491		$	23,020
	Total gains:
	Included in earnings	118			156
	Purchases, sales, issuances and settlements:
	Sales	(1,709		)	(3,123		)
	Ending balance	$	14,900		$	20,053
	Change in unrealized gains relating to	$	(334	)	$	(674	)
	assets still held at the reporting date
Fair Value Measurements, Nonrecurring	'
	The following table presents financial instruments and non-financial assets measured at fair value on a non-recurring basis as of March 31, 2014:
		-1			-1			-1		-1
	(in thousands)	Total Fair Value			Quoted Prices in Active			Significant		Significant		Total losses for the
					Markets for			Other		Unobservable		three months ended
					Identical			Observable		Inputs		31-Mar-14
					Assets			Inputs		(Level 3)
					(Level 1)			(Level 2)
	Impaired loans	$	3,035		$	—		$	—	$	3,035	$	(1,369	)
	Other real estate	3,756			—			—		3,756		(344		)
	Total	$	6,791		$	—		$	—	$	6,791	$	(1,713	)
	(1) The amounts represent only balances measured at fair value during the period and still held as of the reporting date.
Summary of Carrying Amount and Fair Values of Financial Instruments Reported on the Balance Sheets	'
	Following is a summary of the carrying amounts and fair values of the Company’s financial instruments on the consolidated balance sheets at March 31, 2014, and December 31, 2013.
		March 31, 2014						December 31, 2013
	(in thousands)	Carrying Amount			Estimated fair value			Carrying Amount		Estimated fair value
	Balance sheet assets
	Cash and due from banks	$	35,260		$	35,260		$	19,573	$	19,573
	Federal funds sold	56			56			76		76
	Interest-bearing deposits	107,635			107,635			196,220		196,220
	Securities available for sale	456,059			456,059			434,587		434,587
	Other investments, at cost	14,944			14,944			12,605		12,605
	Loans held for sale	1,901			1,901			1,834		1,834
	Derivative financial instruments	978			978			1,000		1,000
	Portfolio loans, net	2,256,242			2,251,063			2,235,124		2,232,134
	State tax credits, held for sale	45,660			49,517			48,457		52,159
	Accrued interest receivable	7,476			7,476			7,303		7,303
	Balance sheet liabilities
	Deposits	2,452,118			2,457,394			2,534,953		2,540,822
	Subordinated debentures	56,807			33,729			62,581		39,358
	Federal Home Loan Bank advances	130,000			133,911			50,000		54,137
	Other borrowings	190,318			190,348			214,331		214,377
	Derivative financial instruments	968			968			990		990
	Accrued interest payable	874			874			957		957
Estimate of the Fair Value of Financial Instruments Not Recorded at Fair Value on Balance Sheet	'
	The following table presents the level in the fair value hierarchy for the estimated fair values of only the Company’s financial instruments that are not already presented on the condensed consolidated balance sheets at fair value at March 31, 2014, and December 31, 2013:
		Estimated Fair Value Measurement at Reporting Date Using								Balance at
	(in thousands)	Level 1			Level 2			Level 3		31-Mar-14
	Financial Assets:
	Portfolio loans, net	$	—		$	—		$	2,251,063	$	2,251,063
	State tax credits, held for sale	$	—		$	—		$	34,617	$	34,617
	Financial Liabilities:
	Deposits	1,839,367			—			618,027		2,457,394
	Subordinated debentures	—			33,729			—		33,729
	Federal Home Loan Bank advances	—			133,911			—		133,911
	Other borrowings	—			190,348			—		190,348
		Estimated Fair Value Measurement at Reporting Date Using								Balance at
	(in thousands)	Level 1			Level 2			Level 3		31-Dec-13
	Financial Assets:
	Portfolio loans, net	$	—		$	—		$	2,232,134	$	2,232,134
	State tax credits, held for sale	$	—		$	—		$	35,668	$	35,668
	Financial Liabilities:
	Deposits	1,902,038			—			638,784		2,540,822
	Subordinated debentures	—			39,358			—		39,358
	Federal Home Loan Bank advances	—			54,137			—		54,137
	Other borrowings	—			214,377			—		214,377

Segment_Reporting_Tables

Segment Reporting (Tables)	3 Months Ended
	Mar. 31, 2014
Segment Reporting [Abstract]	'
Schedule of Segment Reporting Information, by Segment	'
	Following are the financial results for the Company’s operating segments.
	(in thousands)	Banking		Wealth Management			Corporate and Intercompany			Total
		Three months ended March 31,
	Income Statement Information	2014
	Net interest income (expense)	$	30,820	$	(18	)	$	(436	)	$	30,366
	Provision for loan losses	4,331		—			—			4,331
	Noninterest income	1,699		2,217			6			3,922
	Noninterest expense	17,631		1,833			1,638			21,102
	Income (loss) before income tax expense (benefit)	10,557		366			(2,068		)	8,855
		2013
	Net interest income (expense)	$	37,857	$	7		$	(965	)	$	36,899
	Provision for loan losses	4,109		—			—			4,109
	Noninterest income	45		2,794			75			2,914
	Noninterest expense	16,724		2,056			1,505			20,285
	Income (loss) before income tax expense (benefit)	17,069		745			(2,395		)	15,419
	Balance Sheet Information	March 31, 2014					December 31, 2013
	Total assets:
	Banking	$	3,025,589				$	3,051,256
	Wealth Management	96,698					101,026
	Corporate and Intercompany	17,664					17,915
	Total	3,139,951					3,170,197

Earnings_Per_Share_Details

Earnings Per Share (Details) (USD $)	3 Months Ended
In Thousands, except Share data, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Earnings Per Share [Abstract]	'	'
Net income as reported	$5,848	$10,040
Impact of assumed conversions	'	'
Interest on 9% convertible trust preferred securities, net of income tax	66	354
Net income available to common shareholders and assumed conversions	$5,914	$10,394
Weighted average common shares outstanding (in shares)	19,521,000	18,011,000
Incremental shares from assumed conversions of convertible trust preferred securities (in shares)	230,000	1,439,000
Additional dilutive common stock equivalents (in shares)	198,000	74,000
Weighted average diluted common shares outstanding (in shares)	19,949,000	19,524,000
Basic earnings per common share: (in dollars per share)	$0.30	$0.56
Diluted earnings per common share: (in dollars per share)	$0.30	$0.53
Antidilutive Securities Excluded from Computation of Earnings Per Share	'	'
Common stock equivalents excluded from earnings per share calculations due to anti-dilutive effect (in shares)	284,469	515,550
Warrants	'	'
Antidilutive Securities Excluded from Computation of Earnings Per Share	'	'
Common stock equivalents excluded from earnings per share calculations due to anti-dilutive effect (in shares)	'	28,807
Convertible Debt Securities	'	'
Debt Instrument, Interest Rate, Stated Percentage [Abstract]	'	'
Convertible trust preferred securities, interest rate, stated percentage	9.00%	9.00%

Investments_Schedule_of_Availa

Investments - Schedule of Available-for-sale Securities Reconciliation (Details) (USD $)	3 Months Ended
	Mar. 31, 2014	Dec. 31, 2013
Available for sale securities:	'	'
Amortized Cost	$460,186,000	$441,562,000
Gross Unrealized Gains	4,572,000	4,358,000
Gross Unrealized Losses	-8,699,000	-11,333,000
Fair Value	456,059,000	434,587,000
Percentage of shareholders' equity held by one issuer, maximum	10.00%	10.00%
Available-for-sale securities pledged as collateral, fair value	259,000,000	270,100,000
Mortgage-backed securities, weighted average life	'5 years	'
Obligations of U.S. Government sponsored enterprises	'	'
Available for sale securities:	'	'
Amortized Cost	92,754,000	93,218,000
Gross Unrealized Gains	703,000	700,000
Gross Unrealized Losses	-306,000	-388,000
Fair Value	93,151,000	93,530,000
Obligations of states and political subdivisions	'	'
Available for sale securities:	'	'
Amortized Cost	49,678,000	49,721,000
Gross Unrealized Gains	1,149,000	983,000
Gross Unrealized Losses	-1,232,000	-1,761,000
Fair Value	49,595,000	48,943,000
Residential mortgage-backed securities	'	'
Available for sale securities:	'	'
Amortized Cost	317,754,000	298,623,000
Gross Unrealized Gains	2,720,000	2,675,000
Gross Unrealized Losses	-7,161,000	-9,184,000
Fair Value	$313,313,000	$292,114,000

Investments_Investments_Classi

Investments - Investments Classified by Contractual Maturity Date (Details) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Amortized Cost	'	'
Due in one year or less	$1,262	'
Due after one year through five years	109,526	'
Due after five years through ten years	20,810	'
Due after ten years	10,834	'
Mortgage-backed securities	317,754	'
Total	460,186	441,562
Estimated Fair Value	'	'
Due in one year or less	1,276	'
Due after one year through five years	110,475	'
Due after five years through ten years	20,768	'
Due after ten years	10,227	'
Mortgage-backed securities	313,313	'
Total	$456,059	$434,587

Investments_Schedule_of_Unreal

Investments - Schedule of Unrealized Loss on Investments (Details) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Schedule of Available-for-sale Securities [Line Items]	'	'
Less than 12 months, Fair Vaule	$208,950	$207,361
Less than 12 months, Unrealized Losses	6,064	8,678
12 months or more, Fair Value	35,041	28,605
12 months or more, Unrealized Losses	2,635	2,655
Total, Fair Value	243,991	235,966
Total, Unrealized Losses	8,699	11,333
Obligations of U.S. government sponsored enterprises	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Less than 12 months, Fair Vaule	30,251	30,221
Less than 12 months, Unrealized Losses	306	388
12 months or more, Fair Value	0	0
12 months or more, Unrealized Losses	0	0
Total, Fair Value	30,251	30,221
Total, Unrealized Losses	306	388
Obligations of the state and political subdivisions	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Less than 12 months, Fair Vaule	11,700	17,141
Less than 12 months, Unrealized Losses	419	952
12 months or more, Fair Value	8,874	7,168
12 months or more, Unrealized Losses	813	809
Total, Fair Value	20,574	24,309
Total, Unrealized Losses	1,232	1,761
Residential mortgage-backed securities	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Less than 12 months, Fair Vaule	166,999	159,999
Less than 12 months, Unrealized Losses	5,339	7,338
12 months or more, Fair Value	26,167	21,437
12 months or more, Unrealized Losses	1,822	1,846
Total, Fair Value	193,166	181,436
Total, Unrealized Losses	$7,161	$9,184

Investments_Schedule_of_Realiz

Investments - Schedule of Realized Gain (Loss) (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Investments [Abstract]	'	'
Gross gains realized	$0	$866
Gross losses realized	0	-182
Proceeds from sales	$0	$122,894

Portfolio_Loans_Not_Covered_by2

Portfolio Loans Not Covered by Loss Share ("Non-covered") - Summary of Non-covered Loans by Category (Details) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Total	$2,173,988	$2,137,313
Non-Covered Loans	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Portfolio Loans	2,172,811	2,136,292
Unearned loan costs, net	1,177	1,021
Total	2,173,988	2,137,313
Non-Covered Loans | Construction and Land Development	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Portfolio Loans	121,869	117,032
Non-Covered Loans | Commercial Real Estate Investor Owned	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Portfolio Loans	416,777	437,688
Non-Covered Loans | Commercial Real Estate Owner Occupied	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Portfolio Loans	367,300	341,631
Non-Covered Loans | Residential Real Estate	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Portfolio Loans	160,195	158,527
Non-Covered Loans | Real Estate Loans	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Portfolio Loans	1,066,141	1,054,878
Non-Covered Loans | Commercial & Industrial	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Portfolio Loans	1,060,368	1,041,576
Non-Covered Loans | Consumer & Other	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Portfolio Loans	46,302	39,838
Total	$47,479	$40,859

Portfolio_Loans_Not_Covered_by3

Portfolio Loans Not Covered by Loss Share ("Non-covered") - Summary of Allowance for Loan Losses for Non-covered Loans by Portfolio Class and Category (Details) (Non-Covered Loans, USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014
Allowance for Loan Losses [Roll Forward]	'
Balance	$27,289
Provision charged to expense	1,027
Losses charged off	-1,369
Recoveries	958
Balance	27,905
Commercial & Industrial	'
Allowance for Loan Losses [Roll Forward]	'
Balance	12,246
Provision charged to expense	899
Losses charged off	-474
Recoveries	187
Balance	12,858
Commercial Real Estate Owner Occupied	'
Allowance for Loan Losses [Roll Forward]	'
Balance	4,096
Provision charged to expense	589
Losses charged off	-336
Recoveries	8
Balance	4,357
Commercial Real Estate Investor Owned	'
Allowance for Loan Losses [Roll Forward]	'
Balance	6,600
Provision charged to expense	-9
Losses charged off	-250
Recoveries	34
Balance	6,375
Construction and Land Development	'
Allowance for Loan Losses [Roll Forward]	'
Balance	2,136
Provision charged to expense	-532
Losses charged off	-305
Recoveries	688
Balance	1,987
Residential Real Estate	'
Allowance for Loan Losses [Roll Forward]	'
Balance	2,019
Provision charged to expense	16
Losses charged off	0
Recoveries	41
Balance	2,076
Consumer & Other	'
Allowance for Loan Losses [Roll Forward]	'
Balance	192
Provision charged to expense	64
Losses charged off	-4
Recoveries	0
Balance	$252

Portfolio_Loans_Not_Covered_by4

Portfolio Loans Not Covered by Loss Share ("Non-covered") - Summary of Recorded Investment in Non-covered Loans by Portfolio Class and Category Based on Impairment Method (Details) (USD $)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
Summary of Recorded Investment in Non-covered Loans by Portfolio Class and Category Based on Impairment Method [Line Items]	'	'	'
Impaired Financing Receivable, Interest Income, Accrual Method	$6,000	$29,000	'
Loans - Ending Balance:	'	'	'
Total	2,173,988,000	'	2,137,313,000
Non-Covered Loans	'	'	'
Allowance for Loan Losses - Ending Balance:	'	'	'
Individually evaluated for impairment	2,270,000	'	1,550,000
Collectively evaluated for impairment	25,635,000	'	25,739,000
Total	27,905,000	'	27,289,000
Loans - Ending Balance:	'	'	'
Individually evaluated for Impairment	16,115,000	'	20,840,000
Collectively evaluated for impairment	2,157,873,000	'	2,116,473,000
Total	2,172,811,000	'	2,136,292,000
Total	2,173,988,000	'	2,137,313,000
Non-Covered Loans | Commercial & Industrial	'	'	'
Allowance for Loan Losses - Ending Balance:	'	'	'
Individually evaluated for impairment	1,472,000	'	736,000
Collectively evaluated for impairment	11,386,000	'	11,510,000
Total	12,858,000	'	12,246,000
Loans - Ending Balance:	'	'	'
Individually evaluated for Impairment	5,046,000	'	3,380,000
Collectively evaluated for impairment	1,055,322,000	'	1,038,196,000
Total	1,060,368,000	'	1,041,576,000
Non-Covered Loans | Commercial Real Estate Owner Occupied	'	'	'
Allowance for Loan Losses - Ending Balance:	'	'	'
Individually evaluated for impairment	401,000	'	107,000
Collectively evaluated for impairment	3,956,000	'	3,989,000
Total	4,357,000	'	4,096,000
Loans - Ending Balance:	'	'	'
Individually evaluated for Impairment	2,232,000	'	606,000
Collectively evaluated for impairment	365,068,000	'	341,025,000
Total	367,300,000	'	341,631,000
Non-Covered Loans | Commercial Real Estate Investor Owned	'	'	'
Allowance for Loan Losses - Ending Balance:	'	'	'
Individually evaluated for impairment	0	'	0
Collectively evaluated for impairment	6,375,000	'	6,600,000
Total	6,375,000	'	6,600,000
Loans - Ending Balance:	'	'	'
Individually evaluated for Impairment	678,000	'	6,811,000
Collectively evaluated for impairment	416,099,000	'	430,877,000
Total	416,777,000	'	437,688,000
Non-Covered Loans | Construction and Land Development	'	'	'
Allowance for Loan Losses - Ending Balance:	'	'	'
Individually evaluated for impairment	386,000	'	703,000
Collectively evaluated for impairment	1,601,000	'	1,433,000
Total	1,987,000	'	2,136,000
Loans - Ending Balance:	'	'	'
Individually evaluated for Impairment	7,729,000	'	9,484,000
Collectively evaluated for impairment	114,140,000	'	107,548,000
Total	121,869,000	'	117,032,000
Non-Covered Loans | Residential Real Estate	'	'	'
Allowance for Loan Losses - Ending Balance:	'	'	'
Individually evaluated for impairment	11,000	'	4,000
Collectively evaluated for impairment	2,065,000	'	2,015,000
Total	2,076,000	'	2,019,000
Loans - Ending Balance:	'	'	'
Individually evaluated for Impairment	430,000	'	559,000
Collectively evaluated for impairment	159,765,000	'	157,968,000
Total	160,195,000	'	158,527,000
Non-Covered Loans | Consumer & Other	'	'	'
Allowance for Loan Losses - Ending Balance:	'	'	'
Individually evaluated for impairment	0	'	0
Collectively evaluated for impairment	252,000	'	192,000
Total	252,000	'	192,000
Loans - Ending Balance:	'	'	'
Individually evaluated for Impairment	0	'	0
Collectively evaluated for impairment	47,479,000	'	40,859,000
Total	46,302,000	'	39,838,000
Total	$47,479,000	'	$40,859,000

Portfolio_Loans_Not_Covered_by5

Portfolio Loans Not Covered by Loss Share ("Non-covered") - Summary of Non-covered Loans Individually Evaluated for Impairment by Category (Details) (USD $)

3 Months Ended

12 Months Ended

3 Months Ended

12 Months Ended

3 Months Ended

12 Months Ended

3 Months Ended

12 Months Ended

3 Months Ended

12 Months Ended

3 Months Ended

12 Months Ended

3 Months Ended

12 Months Ended

Mar. 31, 2014

Mar. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

loan

Non-Covered Loans

Non-Covered Loans

Non-Covered Loans

Non-Covered Loans

Non-Covered Loans

Non-Covered Loans

Non-Covered Loans

Non-Covered Loans

Non-Covered Loans

Non-Covered Loans

Non-Covered Loans

Non-Covered Loans

Non-Covered Loans

Non-Covered Loans

Unadvanced Commitment on Impaired Loan

Unadvanced Commitment on Impaired Loan

Commercial & Industrial

Commercial & Industrial

Commercial Real Estate Owner Occupied

Commercial Real Estate Owner Occupied

Commercial Real Estate Investor Owned

Commercial Real Estate Investor Owned

Construction and Land Development

Construction and Land Development

Residential Real Estate

Residential Real Estate

Consumer & Other

Consumer & Other

Financing Receivable, Impaired [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Unpaid Contractual Principal Balance

'

'

$18,308,000

$24,243,000

$5,605,000

$4,377,000

$3,371,000

$606,000

$678,000

$8,033,000

$8,225,000

$10,668,000

$429,000

$559,000

$0

$0

'

'

Recorded Investment With No Allowance

'

'

10,079,000

15,122,000

0

0

1,399,000

201,000

679,000

7,190,000

7,595,000

7,383,000

406,000

348,000

0

0

'

'

Recorded Investment With Allowance

'

'

5,976,000

6,445,000

4,449,000

3,384,000

1,041,000

421,000

0

0

454,000

2,419,000

32,000

221,000

0

0

'

'

Total Recorded Investment

'

'

16,055,000

21,567,000

4,449,000

3,384,000

2,440,000

622,000

679,000

7,190,000

8,049,000

9,802,000

438,000

569,000

0

0

'

'

Related Allowance

'

'

2,162,000

'

1,364,000

'

401,000

'

0

'

386,000

'

11,000

'

0

'

'

'

Average Recorded Investment

'

'

17,040,000

27,490,000

3,625,000

6,574,000

1,105,000

1,868,000

3,593,000

11,348,000

8,185,000

5,770,000

532,000

1,930,000

0

0

'

'

Table Text Block Supplement [Abstract]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Number of loans over 90 days past due and still accruing

0

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Interest lost on impaired loans

320,000

765,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Impaired Financing Receivable, Interest Income, Cash Basis Method

9,000

15,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Impaired Financing Receivable, Interest Income, Accrual Method

6,000

29,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Loans and Leases Receivable, Impaired Loans, Commitment to Lend

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

245,000

79,000

Estimated losses attributable to unadvanced commitments on impaired loans

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$150,000

$150,000

Portfolio_Loans_Not_Covered_by6

Portfolio Loans Not Covered by Loss Share ("Non-covered") - Summary of Recorded Investment in Impaired Non-covered Loans by Category (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
	loan	loan
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'	'
Financing Receivable Modifications Reserve	$418	'	'
Table Text Block Supplement [Abstract]	'	'	'
Number of non-covered loans restructured and defaulted	'no	'0	'
Non-Covered Loans	'	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'	'
Financing Receivable, Modifications, Post-Modification Recorded Investment	1,042	5	'
Financing Receivable, Modifications, Pre-Modification Recorded Investment	1,292	5	'
Financing Receivable, Modifications, Number of Contracts	2	1	'
Non-accrual	14,584	'	20,888
Restructured	1,471	'	678
Loans over 90 days past due and still accruing interest	0	'	0
Total Recorded Investment	16,055	'	21,566
Non-Covered Loans | Commercial & Industrial	'	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'	'
Financing Receivable, Modifications, Post-Modification Recorded Investment	0	5	'
Financing Receivable, Modifications, Pre-Modification Recorded Investment	0	5	'
Financing Receivable, Modifications, Number of Contracts	0	1	'
Non-accrual	4,449	'	3,384
Restructured	0	'	0
Loans over 90 days past due and still accruing interest	0	'	0
Total Recorded Investment	4,449	'	3,384
Non-Covered Loans | Commercial Real Estate Investor Owned	'	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'	'
Financing Receivable, Modifications, Post-Modification Recorded Investment	0	0	'
Financing Receivable, Modifications, Pre-Modification Recorded Investment	0	0	'
Financing Receivable, Modifications, Number of Contracts	0	0	'
Non-accrual	0	'	6,511
Restructured	679	'	678
Loans over 90 days past due and still accruing interest	0	'	0
Total Recorded Investment	679	'	7,189
Non-Covered Loans | Commercial Real Estate Owner Occupied	'	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'	'
Financing Receivable, Modifications, Post-Modification Recorded Investment	1,042	0	'
Financing Receivable, Modifications, Pre-Modification Recorded Investment	'	0	'
Financing Receivable, Modifications, Number of Contracts	2	0	'
Non-accrual	1,648	'	622
Restructured	792	'	0
Loans over 90 days past due and still accruing interest	0	'	0
Total Recorded Investment	2,440	'	622
Non-Covered Loans | Real Estate Loans Portfolio Segment [Member]	'	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'	'
Financing Receivable, Modifications, Pre-Modification Recorded Investment	1,292	'	'
Non-Covered Loans | Construction and Land Development	'	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'	'
Financing Receivable, Modifications, Post-Modification Recorded Investment	0	0	'
Financing Receivable, Modifications, Pre-Modification Recorded Investment	0	0	'
Financing Receivable, Modifications, Number of Contracts	0	0	'
Non-accrual	8,049	'	9,802
Restructured	0	'	0
Loans over 90 days past due and still accruing interest	0	'	0
Total Recorded Investment	8,049	'	9,802
Non-Covered Loans | Residential Real Estate	'	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'	'
Financing Receivable, Modifications, Post-Modification Recorded Investment	0	0	'
Financing Receivable, Modifications, Pre-Modification Recorded Investment	0	0	'
Financing Receivable, Modifications, Number of Contracts	0	0	'
Non-accrual	438	'	569
Restructured	0	'	0
Loans over 90 days past due and still accruing interest	0	'	0
Total Recorded Investment	438	'	569
Non-Covered Loans | Consumer & Other	'	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'	'
Financing Receivable, Modifications, Post-Modification Recorded Investment	0	0	'
Financing Receivable, Modifications, Pre-Modification Recorded Investment	0	0	'
Financing Receivable, Modifications, Number of Contracts	0	0	'
Non-accrual	0	'	0
Restructured	0	'	0
Loans over 90 days past due and still accruing interest	0	'	0
Total Recorded Investment	$0	'	$0

Portfolio_Loans_Not_Covered_by7

Portfolio Loans Not Covered by Loss Share ("Non-covered") - Summary of Aging of Recorded Investment in Past Due Non-covered Loans by Portfolio Class and Category (Details) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Total	$2,173,988	$2,137,313
Non-Covered Loans	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
30-89 Days Past Due	9,537	930
90 or More Days Past Due	7,356	14,117
Total Past Due	16,893	15,047
Current	2,157,095	2,122,266
Total	2,172,811	2,136,292
Total	2,173,988	2,137,313
Non-Covered Loans | Commercial & Industrial	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
30-89 Days Past Due	114	229
90 or More Days Past Due	0	0
Total Past Due	114	229
Current	1,060,254	1,041,347
Total	1,060,368	1,041,576
Non-Covered Loans | Commercial Real Estate Owner Occupied	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
30-89 Days Past Due	2,010	0
90 or More Days Past Due	1,195	428
Total Past Due	3,205	428
Current	364,095	341,203
Total	367,300	341,631
Non-Covered Loans | Commercial Real Estate Investor Owned	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
30-89 Days Past Due	6,992	0
90 or More Days Past Due	0	6,132
Total Past Due	6,992	6,132
Current	409,785	431,556
Total	416,777	437,688
Non-Covered Loans | Construction and Land Development	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
30-89 Days Past Due	0	464
90 or More Days Past Due	5,955	7,344
Total Past Due	5,955	7,808
Current	115,914	109,224
Total	121,869	117,032
Non-Covered Loans | Residential Real Estate	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
30-89 Days Past Due	370	237
90 or More Days Past Due	206	213
Total Past Due	576	450
Current	159,619	158,077
Total	160,195	158,527
Non-Covered Loans | Consumer & Other	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
30-89 Days Past Due	51	0
90 or More Days Past Due	0	0
Total Past Due	51	0
Current	47,428	40,859
Total	46,302	39,838
Total	$47,479	$40,859

Portfolio_Loans_Not_Covered_by8

Portfolio Loans Not Covered by Loss Share ("Non-covered") - Summary of Recorded Investment by Risk Category of Non-covered Loans by Portfolio Class and Category (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Financing Receivable, Recorded Investment [Line Items]	'	'
Financing Receivable, Credit Quality, Time Period Expected to Return to Perform	'12 months	'
Total	$2,173,988	$2,137,313
Non-Covered Loans	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Portfolio Loans	2,172,811	2,136,292
Total	2,173,988	2,137,313
Non-Covered Loans | Pass (1-6)	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total	1,964,712	1,924,230
Non-Covered Loans | Watch (7)	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total	138,879	134,410
Non-Covered Loans | Substandard (8)	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total	68,434	78,032
Non-Covered Loans | Doubtful (9)	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total	1,963	641
Non-Covered Loans | Commercial & Industrial	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Portfolio Loans	1,060,368	1,041,576
Non-Covered Loans | Commercial & Industrial | Pass (1-6)	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Portfolio Loans	989,558	977,199
Non-Covered Loans | Commercial & Industrial | Watch (7)	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Portfolio Loans	48,011	40,265
Non-Covered Loans | Commercial & Industrial | Substandard (8)	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Portfolio Loans	21,288	23,934
Non-Covered Loans | Commercial & Industrial | Doubtful (9)	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Portfolio Loans	1,511	178
Non-Covered Loans | Commercial Real Estate Owner Occupied	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Portfolio Loans	367,300	341,631
Non-Covered Loans | Commercial Real Estate Owner Occupied | Pass (1-6)	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Portfolio Loans	334,423	306,321
Non-Covered Loans | Commercial Real Estate Owner Occupied | Watch (7)	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Portfolio Loans	23,392	26,500
Non-Covered Loans | Commercial Real Estate Owner Occupied | Substandard (8)	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Portfolio Loans	9,485	8,810
Non-Covered Loans | Commercial Real Estate Owner Occupied | Doubtful (9)	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Portfolio Loans	0	0
Non-Covered Loans | Commercial Real Estate Investor Owned	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Portfolio Loans	416,777	437,688
Non-Covered Loans | Commercial Real Estate Investor Owned | Pass (1-6)	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Portfolio Loans	354,875	368,433
Non-Covered Loans | Commercial Real Estate Investor Owned | Watch (7)	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Portfolio Loans	41,842	42,227
Non-Covered Loans | Commercial Real Estate Investor Owned | Substandard (8)	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Portfolio Loans	20,060	27,028
Non-Covered Loans | Commercial Real Estate Investor Owned | Doubtful (9)	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Portfolio Loans	0	0
Non-Covered Loans | Construction and Land Development	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Portfolio Loans	121,869	117,032
Non-Covered Loans | Construction and Land Development | Pass (1-6)	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Portfolio Loans	93,251	87,812
Non-Covered Loans | Construction and Land Development | Watch (7)	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Portfolio Loans	17,395	17,175
Non-Covered Loans | Construction and Land Development | Substandard (8)	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Portfolio Loans	10,771	11,582
Non-Covered Loans | Construction and Land Development | Doubtful (9)	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Portfolio Loans	452	463
Non-Covered Loans | Residential Real Estate	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Portfolio Loans	160,195	158,527
Non-Covered Loans | Residential Real Estate | Pass (1-6)	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Portfolio Loans	145,402	143,613
Non-Covered Loans | Residential Real Estate | Watch (7)	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Portfolio Loans	8,179	8,240
Non-Covered Loans | Residential Real Estate | Substandard (8)	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Portfolio Loans	6,614	6,674
Non-Covered Loans | Residential Real Estate | Doubtful (9)	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Portfolio Loans	0	0
Non-Covered Loans | Consumer & Other	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Portfolio Loans	46,302	39,838
Total	47,479	40,859
Non-Covered Loans | Consumer & Other | Pass (1-6)	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total	47,203	40,852
Non-Covered Loans | Consumer & Other | Watch (7)	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total	60	3
Non-Covered Loans | Consumer & Other | Substandard (8)	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total	216	4
Non-Covered Loans | Consumer & Other | Doubtful (9)	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Total	$0	$0

Portfolio_Loans_Covered_by_Los2

Portfolio Loans Covered by Loss Share (Covered loans) - Summary of Covered Loans by Category (Details) (Covered Loans, USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Covered Loans [Line Items]	'	'
Recorded Investment Covered Loans	$128,672	$140,538
Construction and Land Development	'	'
Covered Loans [Line Items]	'	'
Weighted-Average Risk Rating	6.86	6.84
Recorded Investment Covered Loans	12,320	14,325
Commercial Real Estate Investor Owned	'	'
Covered Loans [Line Items]	'	'
Weighted-Average Risk Rating	7.01	6.81
Recorded Investment Covered Loans	44,103	48,146
Commercial Real Estate Owner Occupied	'	'
Covered Loans [Line Items]	'	'
Weighted-Average Risk Rating	6.66	6.75
Recorded Investment Covered Loans	30,246	32,525
Residential Real Estate	'	'
Covered Loans [Line Items]	'	'
Weighted-Average Risk Rating	5.89	5.92
Recorded Investment Covered Loans	32,727	34,498
Real Estate Loans	'	'
Covered Loans [Line Items]	'	'
Recorded Investment Covered Loans	119,396	129,494
Commercial & Industrial	'	'
Covered Loans [Line Items]	'	'
Weighted-Average Risk Rating	6.85	6.87
Recorded Investment Covered Loans	8,716	9,271
Consumer & Other	'	'
Covered Loans [Line Items]	'	'
Weighted-Average Risk Rating	4.4	6.47
Recorded Investment Covered Loans	$560	$1,773

Portfolio_Loans_Covered_by_Los3

Portfolio Loans Covered by Loss Share (Covered loans) - Summary of Aging of the Recorded Investment in Past Due Covered Loans by Portfolio Class and Category (Details) (Covered Loans, USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
30-89 Days Past Due	$4,694	$6,466
90 or More Days Past Due	17,745	19,809
Total Past Due	22,439	26,275
Current	106,233	114,263
Total	128,672	140,538
Commercial & Industrial	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
30-89 Days Past Due	497	397
90 or More Days Past Due	485	573
Total Past Due	982	970
Current	7,734	8,301
Total	8,716	9,271
Consumer & Other	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
30-89 Days Past Due	6	0
90 or More Days Past Due	0	0
Total Past Due	6	0
Current	554	1,773
Total	560	1,773
Commercial Real Estate Owner Occupied	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
30-89 Days Past Due	66	255
90 or More Days Past Due	6,213	6,595
Total Past Due	6,279	6,850
Current	23,967	25,675
Total	30,246	32,525
Commercial Real Estate Investor Owned	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
30-89 Days Past Due	3,125	5,143
90 or More Days Past Due	4,788	3,167
Total Past Due	7,913	8,310
Current	36,190	39,836
Total	44,103	48,146
Construction and Land Development	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
30-89 Days Past Due	0	32
90 or More Days Past Due	3,580	4,198
Total Past Due	3,580	4,230
Current	8,740	10,095
Total	12,320	14,325
Residential Real Estate	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
30-89 Days Past Due	1,000	639
90 or More Days Past Due	2,679	5,276
Total Past Due	3,679	5,915
Current	29,048	28,583
Total	$32,727	$34,498

Portfolio_Loans_Covered_by_Los4

Portfolio Loans Covered by Loss Share (Covered loans) - Rollforward of Covered Loans, Net of the Allowance for Loan Losses (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Allowance for Loan and Lease Losses [Roll Forward]	'	'
Balance at beginning of period	$125,100	$189,571
Principal reductions and interest payments	-9,849	-13,083
Accretion of loan discount	4,560	7,112
Reclassifications from nonaccretable difference	-539	386
Reductions due to disposals	-9,113	-14,677
Balance at end of period	110,159	169,309
Contractual Rights	'	'
Allowance for Loan and Lease Losses [Roll Forward]	'	'
Balance at beginning of period	266,068	386,966
Principal reductions and interest payments	-9,849	-13,083
Accretion of loan discount	0	0
Reclassifications from nonaccretable difference	4,888	-3,099
Reductions due to disposals	-14,297	-35,274
Balance at end of period	246,810	335,510
Non-accretable difference	'	'
Allowance for Loan and Lease Losses [Roll Forward]	'	'
Balance at beginning of period	87,438	118,627
Principal reductions and interest payments	0	0
Accretion of loan discount	0	0
Reclassifications from nonaccretable difference	10,503	-4,084
Reductions due to disposals	-3,142	-14,641
Balance at end of period	94,799	99,902
Accretable Yield	'	'
Allowance for Loan and Lease Losses [Roll Forward]	'	'
Balance at beginning of period	53,530	78,768
Principal reductions and interest payments	0	0
Accretion of loan discount	-4,560	-7,112
Reclassifications from nonaccretable difference	-5,076	599
Reductions due to disposals	-2,042	-5,956
Balance at end of period	$41,852	$66,299

Portfolio_Loans_Covered_by_Los5

Portfolio Loans Covered by Loss Share (Covered loans) - Summary of Activity in the FDIC Loss Share Receivable (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
PORTFOLIO LOANS COVERED BY LOSS SHARE [Abstract]	'	'	'
FDIC loss share receivable	$29,781	'	$34,319
Net cash proceeds received from FDIC loss share receivable	2,255	1,685	'
FDIC Indemnification Asset, Period Increase (Decrease)	127	'	'
FDIC Indemnification Asset, Accretion of Discount	-3,195	'	'
Loan impairment recapture	2,642	'	'
Reductions for payments on Covered assets in excess of expected cash flows	-1,857	'	'
Amount of Estimated Clawback Liability	$1,500	'	'

Commitments_and_Contingencies_1

Commitments and Contingencies (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2014	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2014	Dec. 31, 2013
	Maximum	Minimum	Commitments to extend credit	Commitments to extend credit	Standby letters of credit	Standby letters of credit	Unadvanced Commitment on Impaired Loan	Unadvanced Commitment on Impaired Loan	Fixed Rate Loan Commitment	Fixed Rate Loan Commitment
									Commitments to extend credit	Commitments to extend credit
Schedule of Commitments [Line Items]	'	'	'	'	'	'	'	'	'	'
Remaing Term of Letters Of Credit	'5 years	'1 month	'	'	'	'	'	'	'	'
Loans and Leases Receivable, Impaired Loans, Commitment to Lend	'	'	'	'	'	'	$245	$79	'	'
Estimated losses attributable to unadvanced commitments on impaired loans	'	'	'	'	'	'	150	150	'	'
Off-balance sheet financial instruments, contractual amounts	'	'	$779,698	$804,420	$43,268	$44,376	'	'	$64,100	$50,300

Derivative_Financial_Instrumen2

Derivative Financial Instruments (Details) (USD $)

1 Months Ended

3 Months Ended

3 Months Ended

Feb. 28, 2010

Nov. 30, 2008

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

Mar. 31, 2014

Mar. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Non-designated hedging instruments

Non-designated hedging instruments

Non-designated hedging instruments

Non-designated hedging instruments

Non-designated hedging instruments

Non-designated hedging instruments

Non-designated hedging instruments

Non-designated hedging instruments

Non-designated hedging instruments

Non-designated hedging instruments

Non-designated hedging instruments

Non-designated hedging instruments

Non-designated hedging instruments

Non-designated hedging instruments

Non-designated hedging instruments

Non-designated hedging instruments

Risk Management

Risk Management

Risk Management

Risk Management

Risk Management

Risk Management

Risk Management

Risk Management

Client-Related

Client-Related

Client-Related

Client-Related

Client-Related

Client-Related

Client-Related

Client-Related

Interest rate cap contracts

Interest rate cap contracts

Gain on state tax credits, net

Gain on state tax credits, net

Other Assets

Other Assets

Other Liabilities

Other Liabilities

Interest rate swap contracts

Interest rate swap contracts

Interest and fees on loans

Interest and fees on loans

Other Assets

Other Assets

Other Liabilities

Other Liabilities

Interest rate cap contracts

Interest rate cap contracts

Interest rate cap contracts

Interest rate cap contracts

Interest rate cap contracts

Interest rate cap contracts

Interest rate swap contracts

Interest rate swap contracts

Interest rate swap contracts

Interest rate swap contracts

Interest rate swap contracts

Interest rate swap contracts

Derivative [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

counter party credit risk derivatives

'

'

$1,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Derivative, Collateral, Right to Reclaim Cash

'

'

990,000

1,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Amount Paid to Enter Into a Series of Interest Rate Caps

751,000

2,100,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Summary of Derivative Instruments [Abstract]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Notional Amount

'

'

'

'

23,800,000

23,800,000

'

'

'

'

'

'

180,809,000

185,213,000

'

'

'

'

'

'

Asset Derivatives, Fair Value

'

'

'

'

'

'

'

'

10,000

10,000

'

'

'

'

'

'

968,000

990,000

'

'

Liability Derivatives, Fair Value

'

'

'

'

'

'

'

'

'

'

0

0

'

'

'

'

'

'

968,000

990,000

Amount of Gain or (Loss) Recognized in Operations on Derivative

'

'

'

'

'

'

$0

($1,000)

'

'

'

'

'

'

$0

($105,000)

'

'

'

'

Fair_Value_Measurements_Financ

Fair Value Measurements - Financial Instruments Measured at Fair Value on a Recurring Basis (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Assets	'	'
Securities available for sale	$456,059	$434,587
State tax credits held for sale	14,900	16,491
Liabilities	'	'
State tax credits, held for sale	45,660	48,457
Tax credit stream, term	'10 years	'
Years of tax credits generated	'10 years	'
Obligations of U.S. Government sponsored enterprises	'	'
Assets	'	'
Securities available for sale	93,151	93,530
Obligations of states and political subdivisions	'	'
Assets	'	'
Securities available for sale	49,595	48,943
Residential mortgage-backed securities	'	'
Assets	'	'
Securities available for sale	313,313	292,114
Quoted Prices in Active Markets for Identical Assets (Level 1)	'	'
Assets	'	'
State tax credits held for sale	0	0
Significant Other Observable Inputs (Level 2)	'	'
Assets	'	'
State tax credits held for sale	0	0
Significant Unobservable Inputs (Level 3)	'	'
Assets	'	'
State tax credits held for sale	34,617	35,668
Significant Unobservable Inputs (Level 3) | Auction Rate Securities	'	'
Liabilities	'	'
Number of securities	3	'
Total Fair Value	'	'
Assets	'	'
State tax credits held for sale	34,617	35,668
Recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1)	'	'
Assets	'	'
Securities available for sale	0	'
State tax credits held for sale	0	'
Derivative financial instruments	0	'
Total assets	0	'
Liabilities	'	'
Derivative financial instruments	0	'
Total liabilities	0	'
Recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1) | Obligations of U.S. Government sponsored enterprises	'	'
Assets	'	'
Securities available for sale	0	'
Recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1) | Obligations of states and political subdivisions	'	'
Assets	'	'
Securities available for sale	0	'
Recurring basis | Quoted Prices in Active Markets for Identical Assets (Level 1) | Residential mortgage-backed securities	'	'
Assets	'	'
Securities available for sale	0	'
Recurring basis | Significant Other Observable Inputs (Level 2)	'	'
Assets	'	'
Securities available for sale	453,013	'
State tax credits held for sale	0	'
Derivative financial instruments	978	'
Total assets	453,991	'
Liabilities	'	'
Derivative financial instruments	968	'
Total liabilities	968	'
Recurring basis | Significant Other Observable Inputs (Level 2) | Obligations of U.S. Government sponsored enterprises	'	'
Assets	'	'
Securities available for sale	93,151	'
Recurring basis | Significant Other Observable Inputs (Level 2) | Obligations of states and political subdivisions	'	'
Assets	'	'
Securities available for sale	46,549	'
Recurring basis | Significant Other Observable Inputs (Level 2) | Residential mortgage-backed securities	'	'
Assets	'	'
Securities available for sale	313,313	'
Recurring basis | Significant Unobservable Inputs (Level 3)	'	'
Assets	'	'
Securities available for sale	3,046	'
State tax credits held for sale	14,900	'
Derivative financial instruments	0	'
Total assets	17,946	'
Liabilities	'	'
Derivative financial instruments	0	'
Total liabilities	0	'
Recurring basis | Significant Unobservable Inputs (Level 3) | Obligations of U.S. Government sponsored enterprises	'	'
Assets	'	'
Securities available for sale	0	'
Recurring basis | Significant Unobservable Inputs (Level 3) | Obligations of states and political subdivisions	'	'
Assets	'	'
Securities available for sale	3,046	'
Recurring basis | Significant Unobservable Inputs (Level 3) | Residential mortgage-backed securities	'	'
Assets	'	'
Securities available for sale	0	'
Recurring basis | Total Fair Value	'	'
Assets	'	'
Securities available for sale	456,059	'
State tax credits held for sale	14,900	'
Derivative financial instruments	978	'
Total assets	471,937	'
Liabilities	'	'
Derivative financial instruments	968	'
Total liabilities	968	'
Recurring basis | Total Fair Value | Obligations of U.S. Government sponsored enterprises	'	'
Assets	'	'
Securities available for sale	93,151	'
Recurring basis | Total Fair Value | Obligations of states and political subdivisions	'	'
Assets	'	'
Securities available for sale	49,595	'
Recurring basis | Total Fair Value | Residential mortgage-backed securities	'	'
Assets	'	'
Securities available for sale	313,313	'
Portion at Fair Value, Fair Value Disclosure | Recurring basis | Total Fair Value	'	'
Assets	'	'
State tax credits held for sale	14,900	'
Portion at Other than Fair Value, Fair Value Disclosure	'	'
Assets	'	'
State tax credits held for sale	$30,800	'
LIBOR Swap Curve	'	'
Liabilities	'	'
Discount rate, basis point spread	205	'

Fair_Value_Measurements_Fair_V

Fair Value Measurements - Fair Value, Financial Instruments, Unobservable Input Reconciliation (Details) (Recurring basis, USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Securities available for sale, at fair value	'	'
Level 3 Financial Instruments Measured at Fair Value	'	'
Beginning balance	$3,040	$3,049
Total gains (losses):	'	'
Included in other comprehensive income	6	2
Purchases, sales, issuances and settlements:	'	'
Purchases	0	0
Transfer in and/or out of Level 3	0	0
Ending Balance	3,046	3,051
Change in unrealized gains relating to assets still held at the reporting date	6	2
State tax credits held for sale	'	'
Level 3 Financial Instruments Measured at Fair Value	'	'
Beginning balance	16,491	23,020
Total gains (losses):	'	'
Included in earnings	118	156
Purchases, sales, issuances and settlements:	'	'
Sales	-1,709	-3,123
Ending Balance	14,900	20,053
Change in unrealized gains relating to assets still held at the reporting date	($334)	($674)

Fair_Value_Measurements_Fair_V1

Fair Value Measurements - Fair Value Measurements, Nonrecurring (Details) (Fair Value, Measurements, Nonrecurring [Member], USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'
Assets, Fair Value Disclosure, Change in Fair Value, Gains (Losses) in Period	($1,713)
Impaired loans	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'
Assets, Fair Value Disclosure, Change in Fair Value, Gains (Losses) in Period	-1,369
Other real estate	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'
Assets, Fair Value Disclosure, Change in Fair Value, Gains (Losses) in Period	-344
Quoted Prices in Active Markets for Identical Assets (Level 1)	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'
Total	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Impaired loans	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'
Impaired loans	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Other real estate	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'
Other real estate	0
Significant Other Observable Inputs (Level 2)	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'
Total	0
Significant Other Observable Inputs (Level 2) | Impaired loans	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'
Impaired loans	0
Significant Other Observable Inputs (Level 2) | Other real estate	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'
Other real estate	0
Significant Unobservable Inputs (Level 3)	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'
Total	6,791
Significant Unobservable Inputs (Level 3) | Impaired loans	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'
Impaired loans	3,035
Significant Unobservable Inputs (Level 3) | Other real estate	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'
Other real estate	3,756
Total Fair Value	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'
Total	6,791
Total Fair Value | Impaired loans	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'
Impaired loans	3,035
Total Fair Value | Other real estate	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'
Other real estate	$3,756

Fair_Value_Measurements_Summar

Fair Value Measurements - Summary of the Carrying Amounts and Fair Values of the Companybs Financial Instruments on the Consolidated Balance Sheets (Details) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Balance sheet assets	'	'
Securities available for sale	$456,059	$434,587
State tax credits held for sale	14,900	16,491
Carrying Amount	'	'
Balance sheet assets	'	'
Cash and due from banks	35,260	19,573
Federal funds sold	56	76
Interest-bearing deposits	107,635	196,220
Securities available for sale	456,059	434,587
Other Investments, at cost	14,944	12,605
Loans held for sale	1,901	1,834
Derivative financial instruments	978	1,000
Portfolio loans, net	2,256,242	2,235,124
State tax credits held for sale	45,660	48,457
Accrued interest receivable	7,476	7,303
Balance sheet liabilities	'	'
Deposits	2,452,118	2,534,953
Subordinated debentures	56,807	62,581
Federal Home Loan Bank advances	130,000	50,000
Other borrowings	190,318	214,331
Derivative financial instruments	968	990
Accrued interest payable	874	957
Estimated fair value	'	'
Balance sheet assets	'	'
Cash and due from banks	35,260	19,573
Federal funds sold	56	76
Interest-bearing deposits	107,635	196,220
Securities available for sale	456,059	434,587
Other Investments, at cost	14,944	12,605
Loans held for sale	1,901	1,834
Derivative financial instruments	978	1,000
Portfolio loans, net	2,251,063	2,232,134
State tax credits held for sale	49,517	52,159
Accrued interest receivable	7,476	7,303
Balance sheet liabilities	'	'
Deposits	2,457,394	2,540,822
Subordinated debentures	33,729	39,358
Federal Home Loan Bank advances	133,911	54,137
Other borrowings	190,348	214,377
Derivative financial instruments	968	990
Accrued interest payable	$874	$957

Fair_Value_Measurements_Estima

Fair Value Measurements - Estimate of the Fair Value of Financial Instruments Not Recorded at Fair Value on Balance Sheet (Details) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Financial Assets:	'	'
State tax credits held for sale	$14,900	$16,491
Fair Value, Level 1	'	'
Financial Assets:	'	'
Portfolio loans, net	0	0
State tax credits held for sale	0	0
Financial Liabilities:	'	'
Deposits	1,839,367	1,902,038
Subordinated debentures	0	0
Federal Home Loan Bank advances	0	0
Other borrowings	0	0
Fair Value, Level 2	'	'
Financial Assets:	'	'
Portfolio loans, net	0	0
State tax credits held for sale	0	0
Financial Liabilities:	'	'
Deposits	0	0
Subordinated debentures	33,729	39,358
Federal Home Loan Bank advances	133,911	54,137
Other borrowings	190,348	214,377
Fair Value, Level 3	'	'
Financial Assets:	'	'
Portfolio loans, net	2,251,063	2,232,134
State tax credits held for sale	34,617	35,668
Financial Liabilities:	'	'
Deposits	618,027	638,784
Subordinated debentures	0	0
Federal Home Loan Bank advances	0	0
Other borrowings	0	0
Estimated fair value	'	'
Financial Assets:	'	'
Portfolio loans, net	2,251,063	2,232,134
State tax credits held for sale	34,617	35,668
Financial Liabilities:	'	'
Deposits	2,457,394	2,540,822
Subordinated debentures	33,729	39,358
Federal Home Loan Bank advances	133,911	54,137
Other borrowings	$190,348	$214,377

Segment_Reporting_Details

Segment Reporting (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
	segment
Segment Reporting [Abstract]	'	'	'
Number of Primary Operating Segments	2	'	'
Number of Reportable Segments	2	'	'
Segment Reporting Information [Line Items]	'	'	'
Goodwill	$30,334	'	$30,334
Intangibles, net	5,092	'	5,418
Deposits	2,452,118	'	2,534,953
Total assets	3,139,951	'	3,170,197
Income Statement Information	'	'	'
Net interest income (expense)	30,366	36,899	'
Provision for loan losses	4,331	4,109	'
Noninterest Income	3,922	2,914	'
Noninterest Expense	21,102	20,285	'
Income before income tax expense	8,855	15,419	'
Banking	'	'	'
Segment Reporting Information [Line Items]	'	'	'
Total assets	3,025,589	'	3,051,256
Income Statement Information	'	'	'
Net interest income (expense)	30,820	37,857	'
Provision for loan losses	4,331	4,109	'
Noninterest Income	1,699	45	'
Noninterest Expense	17,631	16,724	'
Income before income tax expense	10,557	17,069	'
Wealth Management	'	'	'
Segment Reporting Information [Line Items]	'	'	'
Total assets	96,698	'	101,026
Income Statement Information	'	'	'
Net interest income (expense)	-18	7	'
Provision for loan losses	0	0	'
Noninterest Income	2,217	2,794	'
Noninterest Expense	1,833	2,056	'
Income before income tax expense	366	745	'
Corporate and Intercompany	'	'	'
Segment Reporting Information [Line Items]	'	'	'
Total assets	17,664	'	17,915
Income Statement Information	'	'	'
Net interest income (expense)	-436	-965	'
Provision for loan losses	0	0	'
Noninterest Income	6	75	'
Noninterest Expense	1,638	1,505	'
Income before income tax expense	($2,068)	($2,395)	'