United Community Banks (UCB) 10-Q 10 Nov 14 2014 Q3 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information	9 Months Ended
	Sep. 30, 2014	Oct. 31, 2014	Oct. 31, 2014
		Voting Common Stock	Non-Voting Common Stock
Entity Registrant Name	'UNITED COMMUNITY BANKS INC	'	'
Entity Central Index Key	'0000857855	'	'
Trading Symbol	'ucbi	'	'
Entity Current Reporting Status	'Yes	'	'
Entity Voluntary Filers	'No	'	'
Current Fiscal Year End Date	'--12-31	'	'
Entity Filer Category	'Large Accelerated Filer	'	'
Entity Common Stock, Shares Outstanding	'	50,172,042	10,080,787
Document Type	'10-Q	'	'
Document Period End Date	30-Sep-14	'	'
Amendment Flag	'false	'	'
Document Fiscal Year Focus	'2014	'	'
Document Fiscal Period Focus	'Q3	'	'

Consolidated_Statement_of_Inco

Consolidated Statement of Income (Unaudited) (USD $)	3 Months Ended		9 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Interest revenue:	'	'	'	'
Loans, including fees	$49,653	$50,162	$145,602	$151,827
Investment securities, including tax exempt of $177, $202, $558 and $624	12,346	9,887	36,118	29,905
Deposits in banks and short-term investments	934	1,007	2,757	2,793
Total interest revenue	62,933	61,056	184,477	184,525
Deposits:	'	'	'	'
NOW	365	413	1,216	1,286
Money market	872	545	2,192	1,641
Savings	20	37	61	109
Time	1,721	2,630	5,510	8,871
Total deposit interest expense	2,978	3,625	8,979	11,907
Short-term borrowings	316	525	2,064	1,563
Federal Home Loan Bank advances	435	16	573	65
Long-term debt	2,642	3,003	7,914	8,331
Total interest expense	6,371	7,169	19,530	21,866
Net interest revenue	56,562	53,887	164,947	162,659
Provision for credit losses	2,000	3,000	6,700	62,500
Net interest revenue after provision for credit losses	54,562	50,887	158,247	100,159
Fee revenue:	'	'	'	'
Service charges and fees	8,202	8,456	24,627	23,831
Mortgage loan and other related fees	2,178	2,554	5,409	8,212
Brokerage fees	1,209	1,274	3,631	3,104
Securities gains, net	11	'	4,663	116
Loss from prepayment of debt	'	'	-4,446	'
Other	2,812	1,941	6,847	7,816
Total fee revenue	14,412	14,225	40,731	43,079
Total revenue	68,974	65,112	198,978	143,238
Operating expenses:	'	'	'	'
Salaries and employee benefits	25,666	23,090	74,349	71,416
Communications and equipment	3,094	3,305	9,370	9,819
Occupancy	3,425	3,379	10,065	10,195
Advertising and public relations	894	962	2,659	2,937
Postage, printing and supplies	876	644	2,456	2,401
Professional fees	2,274	2,650	5,873	7,515
Foreclosed property	285	194	503	7,678
FDIC assessments and other regulatory charges	1,131	2,405	3,909	7,415
Amortization of intangibles	313	427	1,061	1,623
Other	3,406	3,041	10,701	11,691
Total operating expenses	41,364	40,097	120,946	132,690
Net income before income taxes	27,610	25,015	78,032	10,548
Income tax expense (benefit)	9,994	9,515	28,659	-246,681
Net income	17,616	15,500	49,373	257,229
Preferred stock dividends and discount accretion	'	3,059	439	9,166
Net income available to common shareholders	$17,616	$12,441	$48,934	$248,063
Earnings per common share:	'	'	'	'
Basic (in dollars per share)	$0.29	$0.21	$0.81	$4.24
Diluted (in dollars per share)	$0.29	$0.21	$0.81	$4.24
Weighted average common shares outstanding:	'	'	'	'
Basic (in shares)	60,776	59,100	60,511	58,443
Diluted (in shares)	60,779	59,202	60,513	58,444

Consolidated_Statement_of_Inco1

Consolidated Statement of Income (Unaudited) (Parentheticals) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Income Statement [Abstract]	'	'	'	'
Investment securities tax exemption	$177	$202	$558	$624

Consolidated_Statement_of_Comp

Consolidated Statement of Comprehensive Income (Unaudited) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Consolidated Statement Of Comprehensive Income (Loss) [Abstract]	'	'	'	'
Net income, Before-tax Amount	$27,610	$25,015	$78,032	$10,548
Net income, Tax (Expense) Benefit	-9,994	-9,515	-28,659	246,681
Net income, Net of Tax Amount	17,616	15,500	49,373	257,229
Unrealized gains (losses) on available-for-sale securities:	'	'	'	'
Unrealized holding gains (losses) arising during period, Before-tax Amount	-4,357	-13,215	10,696	-26,932
Unrealized holding gains (losses) arising during period, Tax (Expense) Benefit	1,626	4,971	-4,031	10,148
Unrealized holding gains (losses) arising during period, Net of Tax Amount	-2,731	-8,244	6,665	-16,784
Reclassification adjustment for gains included in net income, Before-tax Amount	-11	'	-4,663	-116
Reclassification adjustment for gains included in net income, Tax (Expense) Benefit	4	'	1,821	45
Reclassification adjustment for gains included in net income, Net of Tax Amount	-7	'	-2,842	-71
Adjustment of valuation allowance for the change in deferred taxes arising from unrealized gains and losses on available-for-sale securities, Tax (Expense) Benefit	'	'	'	-2,950
Adjustment of valuation allowance for the change in deferred taxes arising from unrealized gains and losses on available-for-sale securities, Net of Tax Amount	'	'	'	-2,950
Net unrealized gains (losses), Before-tax Amount	-4,368	-13,215	6,033	-27,048
Net unrealized gains (losses), Tax (Expense) Benefit	1,630	4,971	-2,210	7,243
Net unrealized gains (losses), Net of Tax Amount	-2,738	-8,244	3,823	-19,805
Amortization of gains included in net income on available-for-sale securities transferred to held-to-maturity, Before-tax Amount	468	-214	1,207	-804
Amortization of gains included in net income on available-for-sale securities transferred to held-to-maturity, Tax (Expense) Benefit	-176	82	-453	309
Amortization of gains included in net income on available-for-sale securities transferred to held-to-maturity, Net of Tax Amount	292	-132	754	-495
Adjustment of valuation allowance for the change in deferred taxes arising from the amortization of gains included in net income (loss) on available-for-sale securities transferred to held-to-maturity and release of valuation allowance, Tax (Expense) Benefit	'	'	'	1,293
Adjustment of valuation allowance for the change in deferred taxes arising from the amortization of gains included in net income (loss) on available-for-sale securities transferred to held-to-maturity and release of valuation allowance, Net of Tax Amount	'	'	'	1,293
Net unrealized gains (losses), Before-tax Amount	468	-214	1,207	-804
Net unrealized gains (losses), Tax (Expense) Benefit	-176	82	-453	1,602
Net unrealized gains (losses), Net of Tax Amount	292	-132	754	798
Amounts reclassified into net income on cash flow hedges, Before-tax Amount	711	-58	1,381	-902
Amounts reclassified into net income on cash flow hedges, Tax (Expense) Benefit	-277	23	-538	351
Amounts reclassified into net income on cash flow hedges, Net of Tax Amount	434	-35	843	-551
Unrealized gains (losses) on derivative financial instruments accounted for as cash flow hedges, Before-tax Amount	412	-3,369	-5,967	8,733
Unrealized gains (losses) on derivative financial instruments accounted for as cash flow hedges, Tax (Expense) Benefit	-160	1,321	2,322	-3,386
Unrealized gains (losses) on derivative financial instruments accounted for as cash flow hedges, Net of Tax Amount	252	-2,048	-3,645	5,347
Adjustment of valuation allowance for the change in deferred taxes arising from unrealized gains and losses and amortization of gains included in net income on cash flow hedges and release of valuation allowance, Tax (Expense) Benefit	'	'	'	13,698
Adjustment of valuation allowance for the change in deferred taxes arising from unrealized gains and losses and amortization of gains included in net income on cash flow hedges and release of valuation allowance, Net of Tax Amount	'	'	'	13,698
Net unrealized gains (losses), Before-tax Amount	1,123	-3,427	-4,586	7,831
Net unrealized gains (losses), Tax (Expense) Benefit	-437	1,344	1,784	10,663
Net unrealized gains (losses), Net of Tax Amount	686	-2,083	-2,802	18,494
Net actuarial gain (loss) on defined benefit pension plan, Before-tax Amount	'	'	296	-415
Net actuarial gain (loss) on defined benefit pension plan, Tax (Expense) Benefit	'	'	-115	161
Net actuarial gain (loss) on defined benefit pension plan, Net of Tax Amount	'	'	181	-254
Amortization of prior service cost and actuarial losses included in net periodic pension cost for defined benefit pension plan, Before-tax Amount	91	133	274	398
Amortization of prior service cost and actuarial losses included in net periodic pension cost for defined benefit pension plan, Tax (Expense) Benefit	-36	-52	-107	-155
Amortization of prior service cost and actuarial losses included in net periodic pension cost for defined benefit pension plan, Net of Tax Amount	55	81	167	243
Net defined benefit pension plan activity, Before-tax Amount	91	133	570	-17
Net defined benefit pension plan activity, Tax (Expense) Benefit	-36	-52	-222	6
Net defined benefit pension plan activity, Net of Tax Amount	55	81	348	-11
Total other comprehensive income (loss), Before-tax Amount	-2,686	-16,723	3,224	-20,038
Total other comprehensive income (loss), Tax (Expense) Benefit	981	6,345	-1,101	19,514
Total other comprehensive income (loss), net of tax amount	-1,705	-10,378	2,123	-524
Comprehensive income, Before-tax Amount	24,924	8,292	81,256	-9,490
Comprehensive income, Tax (Expense) Benefit	-9,013	-3,170	-29,760	266,195
Comprehensive income, Net of Tax Amount	$15,911	$5,122	$51,496	$256,705

Consolidated_Balance_Sheet_Una

Consolidated Balance Sheet (Unaudited) (USD $)	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2013
In Thousands, unless otherwise specified
ASSETS	'	'	'
Cash and due from banks	$75,268	$71,230	$70,986
Interest-bearing deposits in banks	117,399	119,669	131,147
Short-term investments	23,397	37,999	62,000
Cash and cash equivalents	216,064	228,898	264,133
Securities available for sale	1,789,667	1,832,217	1,963,424
Securities held to maturity (fair value $440,311, $485,585 and $214,651)	432,418	479,742	205,613
Mortgage loans held for sale	20,004	10,319	11,987
Loans, net of unearned income	4,568,886	4,329,266	4,267,067
Less allowance for loan losses	-71,928	-76,762	-80,372
Loans, net	4,496,958	4,252,504	4,186,695
Assets covered by loss sharing agreements with the FDIC	3,253	22,882	31,207
Premises and equipment, net	160,454	163,589	165,993
Bank owned life insurance	81,101	80,670	80,537
Accrued interest receivable	19,908	19,598	18,199
Goodwill and core deposit intangibles	3,910	3,480	3,888
Foreclosed property	3,146	4,221	4,467
Net deferred tax asset	224,734	258,518	269,784
Derivative financial instruments	22,221	23,833	8,092
Other assets	52,051	44,948	29,274
Total assets	7,525,889	7,425,419	7,243,293
Deposits:	'	'	'
Demand	1,561,020	1,388,512	1,418,782
NOW	1,399,449	1,427,939	1,279,134
Money market	1,281,526	1,227,575	1,197,495
Savings	287,797	251,125	249,044
Time:	'	'	'
Less than $100,000	774,201	892,961	925,089
Greater than $100,000	531,428	588,689	624,019
Brokered	405,308	424,704	419,344
Total deposits	6,240,729	6,201,505	6,112,907
Short-term borrowings	6,001	53,241	53,769
Federal Home Loan Bank advances	330,125	120,125	125
Long-term debt	129,865	129,865	129,865
Derivative financial instruments	36,171	46,232	37,269
Unsettled securities purchases	'	29,562	11,610
Accrued expenses and other liabilities	46,573	49,174	45,531
Total liabilities	6,789,464	6,629,704	6,391,076
Shareholders' equity:	'	'	'
Common stock	50,167	46,243	45,223
Common stock issuable; 354,961, 241,832 and 242,262 shares	5,116	3,930	3,979
Capital surplus	1,091,555	1,078,676	1,077,536
Accumulated deficit	-402,773	-448,091	-461,090
Accumulated other comprehensive loss	-17,721	-19,844	-24,164
Total shareholders' equity	736,425	795,715	852,217
Total liabilities and shareholders' equity	7,525,889	7,425,419	7,243,293
Series A Preferred Stock	'	'	'
Shareholders' equity:	'	'	'
Preferred stock	'	'	217
Total shareholders' equity	'	'	217
Series B Preferred Stock	'	'	'
Shareholders' equity:	'	'	'
Preferred stock	'	105,000	179,714
Total shareholders' equity	'	105,000	179,714
Series D Preferred Stock	'	'	'
Shareholders' equity:	'	'	'
Preferred stock	'	16,613	16,613
Total shareholders' equity	'	16,613	16,613
Non-Voting Common Stock	'	'	'
Shareholders' equity:	'	'	'
Common stock	10,081	13,188	14,189
Total shareholders' equity	$10,081	$13,188	$14,189

Consolidated_Balance_Sheet_Una1

Consolidated Balance Sheet (Unaudited) (Parentheticals) (USD $)	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2013
In Thousands, except Share data, unless otherwise specified
Held to maturity, fair value (in dollars)	$440,311	$485,585	$214,651
Preferred stock, par value (in dollars per share)	$1	$1	$1
Preferred stock, shares authorized	10,000,000	10,000,000	10,000,000
Common stock, par value (in dollars per share)	$1	$1	$1
Common stock, shares authorized	100,000,000	100,000,000	100,000,000
Common stock, shares issued	50,167,191	46,243,345	45,222,839
Common stock, shares outstanding	50,167,191	46,243,345	45,222,839
Common stock issuable, shares	354,961	241,832	242,262
Series A Preferred Stock	'	'	'
Preferred stock, par value (in dollars per share)	$10	$10	$10
Preferred stock, shares issued	0	0	21,700
Preferred stock, shares outstanding	0	0	21,700
Series B Preferred Stock	'	'	'
Preferred stock, par value (in dollars per share)	$1,000	$1,000	$1,000
Preferred stock, shares issued	0	105,000	180,000
Preferred stock, shares outstanding	0	105,000	180,000
Series D Preferred Stock	'	'	'
Preferred stock, par value (in dollars per share)	$1,000	$1,000	$1,000
Preferred stock, shares issued	0	16,613	16,613
Preferred stock, shares outstanding	0	16,613	16,613
Non-Voting Common Stock	'	'	'
Common stock, par value (in dollars per share)	$1	$1	$1
Common stock, shares authorized	26,000,000	26,000,000	26,000,000
Common stock, shares issued	10,080,787	13,188,206	14,189,006
Common stock, shares outstanding	10,080,787	13,188,206	14,189,006

Consolidated_Statement_of_Chan

Consolidated Statement of Changes in Shareholders' Equity (Unaudited) (USD $)	Series A Preferred Stock	Series B Preferred Stock	Series D Preferred Stock	Non-Voting Common Stock	Common Stock	Common Stock Issuable	Capital Surplus	Accumulated Deficit	Accumulated Other Comprehensive Income (Loss)	Total
In Thousands, unless otherwise specified
Balance at Dec. 31, 2012	$217	$178,557	$16,613	$15,317	$42,424	$3,119	$1,057,951	($709,153)	($23,640)	$581,405
Increase (Decrease) in Stockholders' Equity [Roll Forward]	'	'	'	'	'	'	'	'	'	'
Net income	'	'	'	'	'	'	'	257,229	'	257,229
Other comprehensive income	'	'	'	'	'	'	'	'	-524	-524
Common stock issued to dividend reinvestment plan and to employee benefit plans (49,830 and 25,284 shares for September 30, 2013 and September 30, 2014 respectively)	'	'	'	'	50	'	532	'	'	582
Conversion of non-voting common stock to voting (1,127,788 and 3,107,419 shares for September 30, 2013 and September 30, 2014 respectively)	'	'	'	-1,128	1,128	'	'	'	'	'
Warrant exercise (1,551,126 shares)	'	'	'	'	1,551	'	17,838	'	'	19,389
Amortization of stock options and restricted stock awards	'	'	'	'	'	'	2,168	'	'	2,168
Vesting of restricted stock (51,995 shares issued, 115,664 shares deferred and 137,920 shares issued, 115,609 shares deferred for September 30, 2013 and September 30, 2014 respectively)	'	'	'	'	52	1,693	-1,900	'	'	-155
Deferred compensation plan, net, including dividend equivalents	'	'	'	'	'	132	'	'	'	132
Shares issued from deferred compensation plan (18,230 and 13,223 shares for September 30, 2013 and September 30, 2014 respectively)	'	'	'	'	18	-965	947	'	'	'
Preferred stock dividends:	'	'	'	'	'	'	'	'	'	'
Series A	'	'	'	'	'	'	'	-9	'	-9
Series B	'	1,157	'	'	'	'	'	-7,907	'	-6,750
Series D	'	'	'	'	'	'	'	-1,250	'	-1,250
Balance at Sep. 30, 2013	217	179,714	16,613	14,189	45,223	3,979	1,077,536	-461,090	-24,164	852,217
Balance at Dec. 31, 2013	'	105,000	16,613	13,188	46,243	3,930	1,078,676	-448,091	-19,844	795,715
Increase (Decrease) in Stockholders' Equity [Roll Forward]	'	'	'	'	'	'	'	'	'	'
Net income	'	'	'	'	'	'	'	49,373	'	49,373
Other comprehensive income	'	'	'	'	'	'	'	'	2,123	2,123
Redemption of Series B preferred stock (105,000 shares)	'	-105,000	'	'	'	'	'	'	'	-105,000
Redemption of Series D preferred stock (16,613 shares)	'	'	-16,613	'	'	'	'	'	'	-16,613
Cash dividends declared on common stock ($.06 per share)	'	'	'	'	'	'	'	-3,616	'	-3,616
Common stock issued at market (640,000 shares)	'	'	'	'	640	'	11,566	'	'	12,206
Common stock issued to dividend reinvestment plan and to employee benefit plans (49,830 and 25,284 shares for September 30, 2013 and September 30, 2014 respectively)	'	'	'	'	25	'	399	'	'	424
Conversion of non-voting common stock to voting (1,127,788 and 3,107,419 shares for September 30, 2013 and September 30, 2014 respectively)	'	'	'	-3,107	3,107	'	'	'	'	'
Amortization of stock options and restricted stock awards	'	'	'	'	'	'	3,315	'	'	3,315
Vesting of restricted stock (51,995 shares issued, 115,664 shares deferred and 137,920 shares issued, 115,609 shares deferred for September 30, 2013 and September 30, 2014 respectively)	'	'	'	'	138	1,275	-2,658	'	'	-1,245
Deferred compensation plan, net, including dividend equivalents	'	'	'	'	'	182	'	'	'	182
Shares issued from deferred compensation plan (18,230 and 13,223 shares for September 30, 2013 and September 30, 2014 respectively)	'	'	'	'	14	-271	257	'	'	'
Preferred stock dividends:	'	'	'	'	'	'	'	'	'	'
Series B	'	'	'	'	'	'	'	-159	'	-159
Series D	'	'	'	'	'	'	'	-280	'	-280
Balance at Sep. 30, 2014	'	'	'	$10,081	$50,167	$5,116	$1,091,555	($402,773)	($17,721)	$736,425

Consolidated_Statement_of_Chan1

Consolidated Statement of Changes in Shareholders' Equity (Unaudited) (Parentheticals) (USD $)	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Consolidated Statement Of Changes In Shareholders' Equity [Abstract]	'	'
Number of shares redeemed of Series B preferred stock	105,000	'
Number of shares redeemed of Series D preferred stock	16,613	'
Cash dividends declared on common stock (in dollars per share)	$0.06	'
Number of common stock issued at market	640,000	'
Common stock issued to dividend reinvestment plan and employee benefit plans	25,284	49,830
Conversion of non-voting common stock to voting shares	3,107,419	1,127,788
Vesting of restricted stock, shares issued	137,920	51,995
Shares issued from deferred compensation plan	13,223	18,230
Vesting of restricted stock, shares deferred	115,609	115,664
Warrant exercise, shares	'	1,551,126

Consolidated_Statement_of_Cash

Consolidated Statement of Cash Flows (Unaudited) (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013
Operating activities:	'	'
Net income	$49,373	$257,229
Adjustments to reconcile net income to net cash provided by operating activities:	'	'
Depreciation, amortization and accretion	15,098	20,847
Provision for credit losses	6,700	62,500
Stock based compensation	3,315	2,168
Deferred income tax expense (benefit)	28,112	-250,054
Securities gains, net	-4,663	-116
Loss on prepayment of borrowings	4,446	'
Net (gains) losses on sales of foreclosed property	-518	5,141
Changes in assets and liabilities:	'	'
Other assets and accrued interest receivable	-12,334	16,225
Accrued expenses and other liabilities	-16,813	31,562
Mortgage loans held for sale	-9,685	16,834
Net cash provided by operating activities	63,031	162,336
Investment securities held-to-maturity:	'	'
Proceeds from maturities and calls	47,567	45,578
Purchases	-173	-8,481
Investment securities available-for-sale:	'	'
Proceeds from sales	403,517	20,751
Proceeds from maturities and calls	176,423	399,304
Purchases	-552,025	-574,020
Net increase in loans	-220,061	-288,514
Proceeds from note sales	4,561	91,913
Cash paid for acquisition	-31,243	'
Funds collected from FDIC under loss sharing agreements	2,890	5,121
Proceeds from sales of premises and equipment	2,488	3,550
Purchases of premises and equipment	-3,260	-7,533
Proceeds from sale of other real estate	7,920	24,049
Net cash used in investing activities	-161,396	-288,282
Financing activities:	'	'
Net change in deposits	39,224	160,767
Net change in short-term borrowings	-51,686	1,195
Proceeds from Federal Home Loan Bank advances	930,000	650,000
Repayment of Federal Home Loan Bank advances	-720,000	-690,000
Proceeds from issuance of senior debt	'	40,000
Repayment of subordinated debentures	'	-35,000
Proceeds from issuance of common stock for dividend reinvestment and employee benefit plans	424	582
Retirement of preferred stock	-121,613	'
Issuance of common stock	12,206	'
Proceeds from warrant exercise	'	19,389
Cash dividends on common stock	-1,810	'
Cash dividends on preferred stock	-1,214	-8,003
Net cash provided by financing activities	85,531	138,930
Net change in cash and cash equivalents	-12,834	12,984
Cash and cash equivalents at beginning of period	228,898	251,149
Cash and cash equivalents at end of period	216,064	264,133
Cash paid during the period for:	'	'
Interest	20,598	26,517
Income taxes	2,497	2,361
Unsettled securities purchases	'	11,610
Transfers of loans to foreclosed property	$8,216	$18,460

Accounting_Policies

Accounting Policies	9 Months Ended
	Sep. 30, 2014
Summary Of Significant Accounting Policies [Abstract]	'
Accounting Policies	'
	Note 1 – Accounting Policies
	The accounting and financial reporting policies of United Community Banks, Inc. (“United”) and its subsidiaries conform to accounting principles generally accepted in the United States of America (“GAAP”) and general banking industry practices.  The accompanying interim consolidated financial statements have not been audited.  All material intercompany balances and transactions have been eliminated.  A more detailed description of United’s accounting policies is included in its Annual Report on Form 10-K for the year ended December 31, 2013.
	In management’s opinion, all accounting adjustments necessary to accurately reflect the financial position and results of operations on the accompanying financial statements have been made. These adjustments are normal and recurring accruals considered necessary for a fair and accurate presentation. The results for interim periods are not necessarily indicative of results for the full year or any other interim periods.
	Reclassifications
	Certain 2013 amounts have been reclassified to conform to the 2014 presentation.  During the fourth quarter of 2013, United reclassified hedge ineffectiveness gains and losses from other fee revenue to net interest revenue.  The impact of the reclassification has been reflected in all periods and was not material to any period.

Accounting_Standards_Updates_a

Accounting Standards Updates and Recently Adopted Standards	9 Months Ended
	Sep. 30, 2014
Accounting Standards Updates [Abstract]	'
Accounting Standards Updates and Recently Adopted Standards	'
	Note 2 –Accounting Standards Updates and Recently Adopted Standards
	In May 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2014-09, Revenue from Contracts with Customers.  This ASU provides guidance on the recognition of revenue from contracts with customers.  The core principle of the guidance is that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services.  This guidance is effective for public entities for annual reporting periods beginning after December 15, 2016, including interim periods within that reporting period, and will be applied retrospectively either to each prior reporting period or with a cumulative effect recognized at the date of initial application.  United is in the process of evaluating this guidance, but its effect on United’s financial condition or results of operations is not expected to be material.
	In June 2014, FASB issued ASU No. 2014-11, Repurchase-to-Maturity Transactions, Repurchase Financings and Disclosures.  This ASU changes the accounting for repurchase-to-maturity transactions to secured borrowing accounting.  For repurchase financing arrangements, the amendments require separate accounting for a transfer of a financial asset executed contemporaneously with a repurchase agreement with the same counterparty, which will result in secured borrowing accounting.  The ASU also requires new disclosures for repurchase agreements, securities lending transactions and repurchase-to-maturity transactions.  The Update is effective for the first interim or annual period beginning after December 15, 2014.  United is currently evaluating the guidance’s impact on its financial position, results of operation and disclosures.
	In June 2014, FASB issued ASU No. 2014-12, Accounting for Share-Based Payments When the Terms of an Award Provide That a Performance Target Could Be Achieved after the Requisite Service Period.  This ASU requires that a performance target that affects vesting and that could be achieved after the requisite service period be treated as a performance condition and should not be reflected in estimating the grant-date fair value of the award.  The standard is effective for annual periods and interim periods within those annual periods beginning after December 15, 2015.  This guidance is not expected to have a material impact on United’s financial position, results of operations or disclosures.
	In August 2014, the FASB issued ASU No. 2014-13, Consolidation, Measuring the Financial Assets and the Financial Liabilities of a Consolidated Collateralized Financing Entity.  This ASU addresses measurement differences in practice in both the initial consolidation and subsequent measurement of the financial assets and financial liabilities of a collateralized financing entity for a reporting entity that consolidates a collateralized financing entity.  Collateralized financing entities include collateralized debt obligations (“CDOs”) and collateralized loan obligations (“CLOs”).  This ASU becomes effective for public business entities for annual periods and interim periods within those annual periods, beginning after December 15, 2015.  Although United holds CLOs in its investment securities portfolio, United is not required to consolidate any of the CLOs it currently holds.  Therefore this ASU is not currently applicable to United.
	In August 2014, the FASB issued ASU No. 2014-14, Receivables – Troubled Debt Restructurings by Creditors, Classification of Certain Government Guaranteed Mortgage Loans upon Foreclosure.  This ASU addresses diversity in practice related to how creditors classify government-guaranteed mortgage loans, including Federal Housing Administration or U.S. Department of Veterans Affairs guaranteed loans upon foreclosure.  The amendments in this ASU require that a mortgage loan be derecognized and that a separate other receivable be recognized upon foreclosure if the following conditions are met:  1) The loan has a government guarantee that is not separable from the loan before foreclosure, 2) At the time of foreclosure, the creditor has the intent to convey the real estate property to the guarantor and make a claim on the guarantee, and the creditor has the ability to recover under that claim, and 3) At the time of foreclosure, any amount of the claim that is determined on the basis of the fair value of the real estate is fixed.  Upon foreclosure, the separate other receivable should be measured based on the amount of the loan balance (principal and interest) expected to be recovered from the guarantor.  This guidance is not expected to have a material impact on United’s financial position, results of operations or disclosures.
	In November 2014, the FASB issued ASU No. 2014-16, Derivatives and Hedging – Determining Whether the Host Contract in a Hybrid Financial Instrument Issued in the Form of a Share Is More Akin to Debt or to Equity. This ASU was issued to eliminate the use of different methods currently used in practice to account for hybrid financial instruments issued in the form of a share. The amendments in this ASU apply to all entities that are issuers of, or investors in, hybrid financial instruments that are issued in the form of a share. The amendments in this ASU are to be applied on a modified retrospective basis to existing hybrid financial instruments issued in the form of a share as of the beginning of the fiscal year for which the amendments are effective. Retrospective application is permitted to all relevant periods. The amendments in this ASU are effective for public business entities for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2015. Early adoption, including adoption in an interim period, is permitted. United is not an issuer of or an investor in hybrid financial instruments issued in the form of a share and therefore this ASU is not currently applicable to United.

Acquisition

Acquisition	9 Months Ended
	Sep. 30, 2014
Business Combinations [Abstract]	'
Acquisition	'
	Note 3 – Acquisition
	On June 26, 2014, United completed the acquisition of substantially all of the assets of Business Carolina, Inc., a specialty Small Business Administration (“SBA”) / United States Department of Agriculture (“USDA”) lender headquartered in Columbia, South Carolina.  On the closing date, United paid $31.2 million in cash for loans having a fair value on the purchase date of $24.8 million, accrued interest of $83,000, servicing rights with a fair value on the purchase date of $2.13 million, premises and equipment with a fair value on the purchase date of $2.60 million and goodwill in the amount of $1.49 million representing the premium paid over the fair value of the separately identifiable assets and liabilities acquired.  United has not identified any material separately identifiable intangible assets resulting from the acquisition.

Balance_Sheet_Offsetting

Balance Sheet Offsetting	9 Months Ended
	Sep. 30, 2014
Offsetting [Abstract]	'
Balance Sheet Offsetting	'
	Note 4 – Balance Sheet Offsetting
	United enters into reverse repurchase agreements in order to invest short-term funds.  In addition, United enters into repurchase agreements and reverse repurchase agreements with the same counterparty in transactions commonly referred to as collateral swaps that are subject to master netting agreements under which the balances are netted in the balance sheet in accordance with ASC 210-20, Offsetting.
	The following table presents a summary of amounts outstanding under reverse repurchase agreements and derivative financial instruments including those entered into in connection with the same counterparty under master netting agreements as of September 30, 2014, December 31, 2013 and September 30, 2013 (in thousands).
					Gross
		Gross			Amounts						Gross Amounts not Offset
		Amounts of			Offset on the						in the Balance Sheet
		Recognized			Balance			Net Asset			Financial				Collateral
	30-Sep-14	Assets			Sheet			Balance			Instruments				Received			Net Amount
	Repurchase agreements / reverse repurchase agreements	$	392,000		$	(375,000	)		$	17,000		$	—		$	(17,985	)		$	—
	Derivatives		22,221			—				22,221			(2,093	)		(3,427	)			16,701
	Total	$	414,221		$	(375,000	)		$	39,221		$	(2,093	)	$	(21,412	)		$	16,701
	Weighted average interest rate of reverse repurchase agreements		1.16	%
					Gross
		Gross			Amounts						Gross Amounts not Offset
		Amounts of			Offset on the			Net			in the Balance Sheet
		Recognized			Balance			Liability			Financial				Collateral
		Liabilities			Sheet			Balance			Instruments				Pledged			Net Amount
	Repurchase agreements / reverse repurchase agreements	$	375,000		$	(375,000	)		$	—		$	—		$	—			$	—
	Derivatives		36,171			—				36,171			(2,093	)		(38,195	)			—
	Total	$	411,171		$	(375,000	)		$	36,171		$	(2,093	)	$	(38,195	)		$	—
	Weighted average interest rate of repurchase agreements		0.31	%
					Gross
		Gross			Amounts						Gross Amounts not Offset
		Amounts of			Offset on the						in the Balance Sheet
		Recognized			Balance				Net Asset		Financial				Collateral
	31-Dec-13	Assets			Sheet				Balance		Instruments				Received			Net Amount
	Repurchase agreements / reverse repurchase agreements	$	385,000		$	(350,000	)		$	35,000		$	—		$	(38,982	)		$	—
	Derivatives		23,833			—				23,833			(4,378	)		(2,912	)			16,543
	Total	$	408,833		$	(350,000	)		$	58,833		$	(4,378	)	$	(41,894	)		$	16,543
	Weighted average interest rate of reverse repurchase agreements		1.09	%
					Gross
		Gross			Amounts						Gross Amounts not Offset
		Amounts of			Offset on the				Net		in the Balance Sheet
		Recognized			Balance				Liability		Financial				Collateral
		Liabilities			Sheet				Balance		Instruments				Pledged			Net Amount
	Repurchase agreements / reverse repurchase agreements	$	350,000		$	(350,000	)		$	—		$	—		$	—			$	—
	Derivatives		46,232			—				46,232			(4,378	)		(38,145	)			3,709
	Total	$	396,232		$	(350,000	)		$	46,232		$	(4,378	)	$	(38,145	)		$	3,709
	Weighted average interest rate of repurchase agreements		0.27	%
					Gross
		Gross			Amounts						Gross Amounts not Offset
		Amounts of			Offset on the						in the Balance Sheet
		Recognized			Balance				Net Asset		Financial				Collateral
	September 30, 2013 - Revised	Assets			Sheet				Balance		Instruments(1)				Received(2)			Net Amount
	Repurchase agreements / reverse repurchase agreements	$	405,000		$	(350,000	)		$	55,000		$	—		$	(59,685	)		$	—
	Derivatives		8,092			—				8,092			(3,765	)		(2,205	)			2,122
	Total	$	413,092		$	(350,000	)		$	63,092		$	(3,765	)	$	(61,890	)		$	2,122
	Weighted average interest rate of reverse repurchase agreements		1.13	%
					Gross
		Gross			Amounts						Gross Amounts not Offset
		Amounts of			Offset on the				Net		in the Balance Sheet
		Recognized			Balance				Liability		Financial				Collateral
		Liabilities			Sheet				Balance		Instruments(1)				Pledged(2)			Net Amount
	Repurchase agreements / reverse repurchase agreements	$	350,000		$	(350,000	)		$	—		$	—		$	—			$	—
	Derivatives		37,269			—				37,269			(3,765	)		(29,011	)			4,493
	Total	$	387,269		$	(350,000	)		$	37,269		$	(3,765	)	$	(29,011	)		$	4,493
	Weighted average interest rate of repurchase agreements		0.28	%
	(1)  United's original filings for the third, second and first quarters of 2013 contained an error and did not include amounts available for offset under master netting agreements for derivative financial instruments. Those amounts were $3.77 million, $4.30 million and $57,000, respectively, for the third, second and first quarters of 2013 and have been added to the balance sheet offsetting table for each respective period. United considers these revisions to be immaterial to the presentation of the financial statements for those quarters.
	(2)  United's original filings for the third, second and first quarters of 2013 contained an error and did not include amounts pledged by counterparties as collateral on reverse repurchase agreement positions. Those amounts were $59.7 million, $53.7 million and $87.5 million, respectively, for the third, second and first quarters of 2013 and have been added to the balance sheet offsetting table for each respective period in the current year presentation. In addition, in the original filings for the third and second quarters of 2013, the amounts reported by United as collateral pledged on derivative financial positions were reported net of collateral received on asset derivative positions. The amounts for those periods have been reported separately as collateral received and collateral pledged in the current year presentation. Additionally, upon further analysis, United updated collateral balances for the third quarter 2013 resulting in a net increase in the collateral pledged position of $1.23 million. United considers these revisions to be immaterial to the presentation of the financial statements for those quarters.

Securities

Securities	9 Months Ended
	Sep. 30, 2014
Investment Securities [Abstract]	'
Securities	'
	Note 5 – Securities
	The amortized cost basis, gross unrealized gains and losses and fair value of securities held-to-maturity at September 30, 2014, December 31, 2013 and September 30, 2013 are as follows (in thousands).
				Gross		Gross
		Amortized		Unrealized		Unrealized			Fair
	As of September 30, 2014	Cost		Gains		Losses			Value
	State and political subdivisions	$	50,248	$	3,849	$	—		$	54,097
	Mortgage-backed securities (1)		382,170		7,299		3,255			386,214
	Total	$	432,418	$	11,148	$	3,255		$	440,311
	As of December 31, 2013
	State and political subdivisions	$	51,733	$	2,718	$	42		$	54,409
	Mortgage-backed securities (1)		428,009		6,690		3,523			431,176
	Total	$	479,742	$	9,408	$	3,565		$	485,585
	As of September 30, 2013
	State and political subdivisions	$	51,745	$	2,723	$	53		$	54,415
	Mortgage-backed securities (1)		153,868		6,767		399			160,236
	Total	$	205,613	$	9,490	$	452		$	214,651
	(1)    All are residential type mortgage-backed securities
	The following table summarizes held-to-maturity securities in an unrealized loss position as of September 30, 2014, December 31, 2013 and September 30, 2013 (in thousands).
		Less than 12 Months				12 Months or More					Total
				Unrealized					Unrealized				Unrealized
	As of September 30, 2014	Fair Value		Loss		Fair Value			Loss		Fair Value		Loss
	Mortgage-backed securities	$	189,223	$	3,147	$	2,798		$	108	$	192,021	$	3,255
	Total unrealized loss position	$	189,223	$	3,147	$	2,798		$	108	$	192,021	$	3,255
	As of December 31, 2013
	State and political subdivisions	$	1,595	$	42	$	—		$	—	$	1,595	$	42
	Mortgage-backed securities		259,870		3,523		—			—		259,870		3,523
	Total unrealized loss position	$	261,465	$	3,565	$	—		$	—	$	261,465	$	3,565
	As of September 30, 2013
	State and political subdivisions	$	4,825	$	53	$	—		$	—	$	4,825	$	53
	Mortgage-backed securities		8,009		399		—			—		8,009		399
	Total unrealized loss position	$	12,834	$	452	$	—		$	—	$	12,834	$	452
	Management evaluates securities for other-than-temporary impairment on a quarterly basis, and more frequently when economic or market concerns warrant such evaluation.  Consideration is given to the length of time and the extent to which the fair value has been less than cost, the financial condition and near-term prospects of the issuer, among other factors.  In analyzing an issuer’s financial condition, management considers whether the securities are issued by the federal government or its agencies, whether downgrades by bond rating agencies have occurred, and industry analysts’ reports.  No impairment charges were recognized during the three or nine months ended September 30, 2014 or 2013.
	In the fourth quarter of 2013, securities available-for-sale with a fair value of $301 million were transferred to held-to-maturity.  The securities were transferred at their fair value on the date of transfer.  The unrealized loss of $8.31 million on the transferred securities is being amortized into interest revenue as an adjustment to the yield on those securities over the remaining life of the transferred securities.
	The cost basis, unrealized gains and losses, and fair value of securities available-for-sale at September 30, 2014, December 31, 2013 and September 30, 2013 are presented below (in thousands).
				Gross		Gross
		Amortized		Unrealized		Unrealized			Fair
	As of September 30, 2014	Cost		Gains		Losses			Value
	U.S. Treasury securities	$	105,385	$	245	$	608		$	105,022
	State and political subdivisions		19,686		666		31			20,321
	Mortgage-backed securities (1)		1,029,881		15,010		9,899			1,034,992
	Corporate bonds		165,558		1,427		1,733			165,252
	Asset-backed securities		458,569		3,629		154			462,044
	Other		2,036		—		—			2,036
	Total	$	1,781,115	$	20,977	$	12,425		$	1,789,667
	As of December 31, 2013
	State and political subdivisions	$	22,558	$	823	$	139		$	23,242
	Mortgage-backed securities (1)		1,145,800		13,296		13,749			1,145,347
	Corporate bonds		255,316		1,304		6,324			250,296
	Asset-backed securities		409,086		2,535		988			410,633
	Other		2,699		—		—			2,699
	Total	$	1,835,459	$	17,958	$	21,200		$	1,832,217
	As of September 30, 2013
	State and political subdivisions	$	22,781	$	893	$	150		$	23,524
	Mortgage-backed securities (1)		1,390,280		14,469		21,432			1,383,317
	Corporate bonds		255,391		936		9,376			246,951
	Asset-backed securities		306,961		1,836		1,559			307,238
	Other		2,394		—		—			2,394
	Total	$	1,977,807	$	18,134	$	32,517		$	1,963,424
	(1)    All are residential type mortgage-backed securities
	The following table summarizes available-for-sale securities in an unrealized loss position as of September 30, 2014, December 31, 2013 and September 30, 2013 (in thousands).
		Less than 12 Months				12 Months or More					Total
				Unrealized					Unrealized				Unrealized
	As of September 30, 2014	Fair Value		Loss		Fair Value			Loss		Fair Value		Loss
U.S. Treasury securities	$	104,777	$	608	$	—		$	—	$	104,777	$	608
State and political subdivisions		—		—		3,638			31		3,638		31
Mortgage-backed securities		126,445		844		265,426			9,055		391,871		9,899
Corporate bonds		49,547		414		34,657			1,319		84,204		1,733
Asset-backed securities		57,716		137		9,952			17		67,668		154
Total unrealized loss position	$	338,485	$	2,003	$	313,673		$	10,422	$	652,158	$	12,425
As of December 31, 2013
State and political subdivisions	$	4,539	$	139	$	—		$	—	$	4,539	$	139
Mortgage-backed securities		334,996		6,480		175,865			7,269		510,861		13,749
Corporate bonds		137,318		4,494		54,130			1,830		191,448		6,324
Asset-backed securities		164,933		722		22,370			266		187,303		988
Total unrealized loss position	$	641,786	$	11,835	$	252,365		$	9,365	$	894,151	$	21,200
	Less than 12 Months				12 Months or More					Total
			Unrealized					Unrealized				Unrealized
As of September 30, 2013	Fair Value		Loss		Fair Value			Loss		Fair Value		Loss
State and political subdivisions	$	4,533	$	148	$	10		$	2	$	4,543	$	150
Mortgage-backed securities		533,681		17,958		100,534			3,474		634,215		21,432
Corporate bonds		115,511		6,463		53,042			2,913		168,553		9,376
Asset-backed securities		79,015		869		56,181			690		135,196		1,559
Total unrealized loss position	$	732,740	$	25,438	$	209,767		$	7,079	$	942,507	$	32,517
At September 30, 2014, there were 90 available-for-sale securities and 25 held-to-maturity securities that were in an unrealized loss position.  United does not intend to sell nor believes it will be required to sell securities in an unrealized loss position prior to the recovery of their amortized cost basis.  Unrealized losses at September 30, 2014 and December 31, 2013 were primarily attributable to changes in interest rates.  Unrealized losses at September 30, 2013 were primarily related to changes in interest rates; however, the unrealized losses in corporate bonds also reflect downgrades in the underlying securities ratings since the time of acquisition.  The bonds remain above investment grade and have recovered much of their initial market value loss. Therefore, United does not consider them to be impaired.
The amortized cost and fair value of held-to-maturity and available-for-sale securities at September 30, 2014, by contractual maturity, are presented in the following table (in thousands).
	Available-for-Sale				Held-to-Maturity
	Amortized Cost		Fair Value		Amortized Cost			Fair Value
U.S. Treasury Securities:
1 to 5 years	$	86,203	$	85,841	$	—		$	—
5 to 10 years		19,182		19,181		—			—
		105,385		105,022		—			—
State and political subdivisions:
Within 1 year		6,330		6,427		1,000			1,023
1 to 5 years		10,414		10,863		18,595			19,949
5 to 10 years		2,094		2,130		20,161			21,726
More than 10 years		848		901		10,492			11,399
		19,686		20,321		50,248			54,097
Corporate bonds:
1 to 5 years		48,756		48,189		—			—
5 to 10 years		115,802		116,763		—			—
More than 10 years		1,000		300		—			—
		165,558		165,252		—			—
Asset-backed securities:
Within 1 year		9,993		10,007		—			—
1 to 5 years		86,608		87,916		—			—
5 to 10 years		242,393		244,069		—			—
More than 10 years		119,575		120,052		—			—
		458,569		462,044		—			—
Other:
More than 10 years		2,036		2,036		—			—
		2,036		2,036		—			—
Total securities other than mortgage-backed securities:
Within 1 year		16,323		16,434		1,000			1,023
1 to 5 years		231,981		232,809		18,595			19,949
5 to 10 years		379,471		382,143		20,161			21,726
More than 10 years		123,459		123,289		10,492			11,399
Mortgage-backed securities		1,029,881		1,034,992		382,170			386,214
	$	1,781,115	$	1,789,667	$	432,418		$	440,311
Expected maturities may differ from contractual maturities because issuers and borrowers may have the right to call or prepay obligations with or without call or prepayment penalties.
Realized gains and losses are derived using the specific identification method for determining the cost of securities sold. The following table summarizes securities sales activity for the three and nine months ended September 30, 2014 and 2013 (in thousands).
	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2014		2013		2014			2013
Proceeds from sales	$	13,290	$	5,000	$	403,517		$	20,751
Gross gains on sales	$	11	$	—	$	5,795		$	116
Gross losses on sales		—		—		(1,132	)		—
Net gains on sales of securities	$	11	$	—	$	4,663		$	116
Income tax expense attributable to sales	$	4	$	—	$	1,821		$	45
Securities with a carrying value of $1.38 billion, $1.53 billion and $1.34 billion were pledged to secure public deposits and other secured borrowings at September 30, 2014, December 31, 2013 and September 30, 2013, respectively.

Loans_and_Allowance_for_Loan_L

Loans and Allowance for Loan Losses	9 Months Ended
	Sep. 30, 2014
Loans and Allowance For Loan Losses [Abstract]	'
Loans and Allowance for Loan Losses	'
	Note 6 – Loans and Allowance for Loan Losses
	Major classifications of loans as of September 30, 2014, December 31, 2013 and September 30, 2013, are summarized as follows (in thousands).
			September 30,				December 31,				September 30,
			2014				2013				2013
	Owner occupied commercial real estate		$	1,153,933			$	1,133,543			$	1,129,152
	Income producing ommercial real estate			604,727				623,167				613,619
	Commercial & industrial			649,853				471,961				457,414
	Commercial construction			180,794				148,903				137,146
	Total commercial			2,589,307				2,377,574				2,337,331
	Residential mortgage			865,568				875,077				888,679
	Home equity lines of credit			458,819				440,887				420,616
	Residential construction			307,178				328,579				317,789
	Consumer installment			105,345				111,045				116,535
	Indirect auto			242,669				196,104				186,117
	Total loans			4,568,886				4,329,266				4,267,067
	Less allowance for loan losses			(71,928	)			(76,762	)			(80,372	)
	Loans, net		$	4,496,958			$	4,252,504			$	4,186,695
	At September 30, 2014, December 31, 2013 and September 30, 2013, loans with a carrying value of $2.21 billion, $1.77 billion and $1.94 billion, respectively, were pledged as collateral to secure FHLB advances and other contingent funding sources.
	The allowance for loan losses represents management’s estimate of probable incurred losses in the loan portfolio as of the end of the period.  In 2013, United established an allowance for unfunded commitments separate from the allowance for loan losses due to significant growth in unfunded loan commitments.  The allowance for unfunded commitments is included in other liabilities in the consolidated balance sheet.  Combined, the allowance for loan losses and allowance for unfunded commitments are referred to as the allowance for credit losses.
	The following table presents the balance and activity in the allowance for credit losses by portfolio segment for the three and nine months ended September 30, 2014 and 2013 (in thousands).
			2014
															Allocation
			Beginning				Charge-								of								Ending
	Three Months Ended September 30,		Balance				Offs				Recoveries				Unallocated				Provision				Balance
	Owner occupied commercial real estate		$	17,804			$	(832	)		$	86			$	—				(1,758	)		$	15,300
	Income producing commercial real estate			11,761				(598	)			494				—				(866	)			10,791
	Commercial & industrial			3,885				-30				372				—				(1,009	)			3,218
	Commercial construction			4,067				(104	)			1				—				1,686				5,650
	Residential mortgage			16,763				-1,357				240				—				1,940				17,586
	Home equity lines of credit			6,338				(405	)			50				—				(1,144	)			4,839
	Residential construction			11,208				(753	)			41				—				2,358				12,854
	Consumer installment			599				(449	)			256				—				333				739
	Indirect auto			823				(178	)			11				—				295				951
	Unallocated			—				—				—				—				—				—
	Total allowance for loan losses			73,248				(4,706	)			1,551				—				1,835				71,928
	Allowance for unfunded commitments			2,165				—				—				—				165				2,330
	Total allowance for credit losses		$	75,413			$	(4,706	)		$	1,551			$	—			$	2,000			$	74,258
															Allocation
			Beginning				Charge-								of								Ending
	Nine Months Ended September 30,		Balance				Offs				Recoveries				Unallocated				Provision				Balance
	Owner occupied commercial real estate		$	17,164			$	(2,116	)		$	2,929			$	1,278			$	(3,955	)		$	15,300
	Income producing commercial real estate			7,174				(1,435	)			691				688				3,673				10,791
	Commercial & industrial			6,527				(2,005	)			1,263				318				(2,885	)			3,218
	Commercial construction			3,669				(236	)			1				388				1,828				5,650
	Residential mortgage			15,446				(5,738	)			597				1,452				5,829				17,586
	Home equity lines of credit			5,528				(2,032	)			218				391				734				4,839
	Residential construction			12,532				(3,004	)			410				1,728				1,188				12,854
	Consumer installment			1,353				(1,580	)			974				—				(8	)			739
	Indirect auto			1,126				(344	)			38				—				131				951
	Unallocated			6,243				—				—				(6,243	)			—				—
	Total allowance for loan losses			76,762				(18,490	)			7,121				—				6,535				71,928
	Allowance for unfunded commitments			2,165				—				—				—				165				2,330
	Total allowance for credit losses		$	78,927			$	(18,490	)		$	7,121			$	—			$	6,700			$	74,258
	In the first quarter of 2014, United modified its allowance for loan losses methodology to incorporate a loss emergence period.  The increase in precision resulting from the use of the loss emergence period led to the full allocation of the portion of the allowance that had previously been unallocated.
			2013
		Beginning					Charge-												Ending
	Three Months Ended September 30,		Balance				Offs			Recoveries				Provision					Balance
	Owner occupied commercial real estate		$	15,785			$	(1,712	)		$	71			$	(78	)		$	14,066
	Income producing commercial real estate			7,023				(216	)			—				3,262				10,069
	Commercial & industrial			8,054				(826	)			690				14				7,932
	Commercial construction			4,275				(134	)			1				(324	)			3,818
	Residential mortgage			14,498				(918	)			229				1,335				15,144
	Home equity lines of credit			5,529				(388	)			2				415				5,558
Residential construction			17,322				(1,096	)			24				(1,908	)			14,342
Consumer installment			1,515				(345	)			210				(31	)			1,349
Indirect auto			875				(74	)			9				258				1,068
Unallocated			6,969				—				—				57				7,026
Total allowance for loan losses			81,845				(5,709	)			1,236				3,000				80,372
Allowance for unfunded commitments			—				—				—				—				—
Total allowance for credit losses		$	81,845			$	(5,709	)		$	1,236			$	3,000			$	80,372
	Beginning					Charge-												Ending
Nine Months Ended September 30,		Balance				Offs			Recoveries				Provision					Balance
Owner occupied commercial real estate		$	17,265			$	(23,444	)		$	1,296			$	18,949			$	14,066
Income producing commercial real estate			10,582				(10,678	)			260				9,905				10,069
Commercial & industrial			5,537				(18,581	)			1,368				19,608				7,932
Commercial construction			8,389				(6,484	)			60				1,853				3,818
Residential mortgage			19,117				(8,272	)			479				3,820				15,144
Home equity lines of credit			7,525				(2,108	)			170				(29	)			5,558
Residential construction			26,662				(22,608	)			57				10,231				14,342
Consumer installment			2,527				(1,521	)			891				(548	)			1,349
Indirect auto			220				(170	)			20				998				1,068
Unallocated			9,313				—				—				(2,287	)			7,026
Total allowance for loan losses			107,137				(93,866	)			4,601				62,500				80,372
Allowance for unfunded commitments			—				—				—				—				—
Total allowance for credit losses		$	107,137			$	(93,866	)		$	4,601			$	62,500			$	80,372
The following table represents the recorded investment in loans by portfolio segment and the balance of the allowance for loan losses assigned to each segment based on the method of evaluating the loans for impairment as of September 30, 2014, December 31, 2013 and September 30, 2013 (in thousands).
		30-Sep-14												31-Dec-13											30-Sep-13
		Individually				Collectively								Individually				Collectively							Individually			Collectively
		Evaluated for				Evaluated for				Ending				Evaluated for				Evaluated for				Ending			Evaluated for			Evaluated for			Ending
Allowance for Loan Losses		Impairment				Impairment				Balance				Impairment				Impairment				Balance			Impairment			Impairment			Balance
Owner occupied commercial real estate		$	2,125			$	13,175			$	15,300			$	1,023			$	16,141			$	17,164		$	770		$	13,296		$	14,066
Income producing commercial real estate			2,380				8,411				10,791				990				6,184				7,174			1,205			8,864			10,069
Commercial & industrial			26				3,192				3,218				66				6,461				6,527			546			7,386			7,932
Commercial construction			1,164				4,486				5,650				112				3,557				3,669			150			3,668			3,818
Residential mortgage			3,501				14,085				17,586				2,914				12,532				15,446			2,008			13,136			15,144
Home equity lines of credit			51				4,788				4,839				5				5,523				5,528			—			5,558			5,558
Residential construction			1,037				11,817				12,854				688				11,844				12,532			662			13,680			14,342
Consumer installment			23				716				739				224				1,129				1,353			11			1,338			1,349
Indirect auto			—				951				951				—				1,126				1,126			—			1,068			1,068
Unallocated			—				—				—				—				6,243				6,243			—			7,026			7,026
Total allowance for loan losses			10,307				61,621				71,928				6,022				70,740				76,762			5,352			75,020			80,372
Allowance for unfunded commitments			—				2,330				2,330				—				2,165				2,165			—			—			—
Total allowance for credit losses		$	10,307			$	63,951			$	74,258			$	6,022			$	72,905			$	78,927		$	5,352		$	75,020		$	80,372
Loans Outstanding
Owner occupied commercial real estate		$	33,635			$	1,120,298			$	1,153,933			$	32,969			$	1,100,574			$	1,133,543		$	31,138		$	1,098,014		$	1,129,152
Income producing commercial real estate			26,120				578,607				604,727				27,239				595,928				623,167			23,325			590,294			613,619
Commercial & industrial			4,540				645,313				649,853				4,217				467,744				471,961			4,105			453,309			457,414
Commercial construction			12,127				168,667				180,794				13,715				135,188				148,903			13,478			123,668			137,146
Residential mortgage			18,778				846,790				865,568				20,167				854,910				875,077			18,970			869,709			888,679
Home equity lines of credit			531				458,288				458,819				505				440,382				440,887			—			420,616			420,616
Residential construction			13,055				294,123				307,178				14,808				313,771				328,579			14,121			303,668			317,789
Consumer installment			245				105,100				105,345				999				110,046				111,045			204			116,331			116,535
Indirect auto			—				242,669				242,669				—				196,104				196,104			—			186,117			186,117
Total loans		$	109,031			$	4,459,855			$	4,568,886			$	114,619			$	4,214,647			$	4,329,266		$	105,341		$	4,161,726		$	4,267,067
United considers all substandard loan relationships that are on nonaccrual with a balance of $500,000 or greater and all troubled debt restructurings (“TDRs”) to be individually impaired.  In addition, United reviews all accruing substandard loan relationships greater than $2 million to determine if the loan is individually impaired.  A loan is considered individually impaired when, based on current events and circumstances, it is probable that all amounts due, according to the contractual terms of the loan, will not be collected.  All TDRs are considered individually impaired regardless of accrual status.  Impairment is measured based on the present value of expected future cash flows, discounted at the loan’s effective interest rate, the loan’s observable market price, or the fair value of the collateral if the loan is collateral dependent.  A specific reserve is established for individually impaired loans for the amount of calculated impairment.  Interest payments received on individually impaired nonaccrual loans are applied as a reduction of the outstanding principal balance.  For impaired loans not on nonaccrual status, interest is accrued according to the terms of the loan agreement.  Loans are evaluated for individual impairment quarterly and specific reserves are established in the allowance for loan losses for any measured specific impairment on individually impaired loans.
Each quarter, United’s management prepares an analysis of the allowance for credit losses to determine the appropriate balance that measures and quantifies the amount of probable incurred loss in the loan portfolio.  The allowance is comprised of specific reserves on individually impaired loans, which are determined as described above, and general reserves which are determined based on historical loss experience as adjusted for current trends and economic conditions multiplied by a loss emergence period factor.  United uses eight quarters of historical loss experience weighted toward the most recent four quarters to determine the loss factors to be used in the reserve calculation for loans evaluated in the aggregate.  Eight quarters has been determined to be an appropriate time period as it is recent enough to be relevant to current conditions and covers a length of time sufficient to minimize distortions caused by nonrecurring and unusual activity that might otherwise influence a shorter time period.  In previous periods, the weighted average was calculated by multiplying each quarter’s annualized historical net charge-off rate by 1 through 8, with 8 representing the most recent quarter and 1 representing the oldest quarter.  United adopted this method of weighting quarterly loss rates to capture the rapidly deteriorating credit conditions in its loss factors during the financial crisis.  Now that credit conditions have begun to stabilize, management concluded in the first quarter of 2014 that it was appropriate to apply a more level weighting moving forward to capture the full range and impacts of credit losses experienced during the most recent economic and credit cycle.  For the four most recent quarters, United applied a weighting factor of 1.75.  For the four oldest quarters, United applied a weighting of 1.00 for each quarterly loss factor.  Management believes the current weightings are more appropriate to measure the unconfirmed losses incurred within the loan portfolio.
Also, beginning in the first quarter of 2014, United updated its measurement of the loss emergence period in the calculation of the allowance for credit losses.  The rapidly deteriorating credit conditions during the peak of the credit cycle shortened the length of time between management’s estimation of the incurrence of a loss and its recognition as a charge-off.  In most cases, the loss emergence period was within a twelve month period which made the use of annualized loss factors appropriate for measuring the amount of incurred yet unconfirmed credit losses within the loan portfolio.  As United has moved out beyond the peak of the financial crisis, management has observed that the loss emergence period has extended. United calculates the loss emergence period for each pool of loans based on the average length of time between the date a loan first exceeds 30 days past due and the date the loan is charged off.
The updates to the weightings to the eight quarters of loss history and the update to our estimation of the loss emergence period did not have a material effect on the total allowance for loan losses or the provision for loan losses for the first nine months of 2014.  These updates resulted in the full allocation of the previously unallocated portion of the allowance for loan losses.
On junior lien home equity loans, United has limited ability to monitor the delinquency status of the first lien unless the first lien is also held by United.  As a result, United applies the weighted average historical loss factor for this category and appropriately adjusts it to reflect the increased risk of loss from these credits.
Management carefully reviews the resulting loss factors for each category of the loan portfolio and evaluates whether qualitative adjustments are necessary to take into consideration recent credit trends such as increases or decreases in past due, nonaccrual, criticized and classified loans, acceleration or delays in timing of recognition of losses that may affect historical loss emergence periods, and other macro environmental factors such as changes in unemployment rates, lease vacancy rates and trends in property values and absorption rates.
United’s management believes that its method of determining the balance of the allowance for loan losses provides a reasonable and reliable basis for measuring and reporting losses that are inherent in the loan portfolio as of the reporting date.
When a loan officer determines that a loan is uncollectible, he or she is responsible for recommending that the loan be charged off.  Full or partial charge-offs may also be recommended by the Collections Department, the Special Assets Department and the Foreclosure / OREO department.  Nonaccrual real estate loans that are collateral dependent are generally charged down to 80% of the appraised value of the underlying collateral at the time they are placed on nonaccrual status.
A committee consisting of the Chief Risk Officer, Senior Risk Officer and the Senior Credit Officers meets monthly to review charge-offs that have occurred during the previous month.
Closed-end retail loans (installment and residential mortgage loans) and open-end (revolving) retail loans past due 90 cumulative days are charged off unless the loan is secured and in process of collection (within the next 90 days).The following table presents loans individually evaluated for impairment by class of loans as of September 30, 2014, December 31, 2013 and September 30, 2013 (in thousands).
		30-Sep-14												31-Dec-13											30-Sep-13
										Allowance												Allowance									Allowance
		Unpaid								for Loan				Unpaid								for Loan			Unpaid						for Loan
		Principal				Recorded				Losses				Principal				Recorded				Losses			Principal			Recorded			Losses
		Balance				Investment				Allocated				Balance				Investment				Allocated			Balance			Investment			Allocated
With no related allowance recorded:
Owner occupied commercial real estate		$	11,370			$	10,370			$	—			$	17,717			$	14,458			$	—		$	18,423		$	15,059		$	—
Income producing commercial real estate			9,872				9,872								12,644				9,747				—			6,643			5,325			—
Commercial & industrial			2,178				1,560				—				2,252				2,252				—			235			235			—
Commercial construction			—				—				—				974				974				—			1,127			1,127			—
Total commercial			23,420				21,802				—				33,587				27,431				—			26,428			21,746			—
Residential mortgage			1,319				954				—				4,496				3,634				—			4,768			3,729			—
Home equity lines of credit			—				—				—				—				—				—			—			—			—
Residential construction			5,460				4,172				—				9,462				7,807				—			9,101			7,364			—
Consumer installment			—				—				—				—				—				—			—			—			—
Indirect auto			—				—				—				—				—				—			—			—			—
Total with no related allowance recorded			30,199				26,928				—				47,545				38,872				—			40,297			32,839			—
With an allowance recorded:
Owner occupied commercial real estate			24,828				23,265				2,125				18,595				18,513				1,023			16,163			16,079			770
Income producing commercial real estate			16,797				16,248				2,380				17,490				17,490				990			20,020			18,000			1,205
Commercial & industrial			2,980				2,980				26				2,248				1,965				66			4,002			3,870			546
Commercial construction			12,281				12,127				1,164				12,821				12,741				112			12,430			12,351			150
Total commercial			56,886				54,620				5,695				51,154				50,709				2,191			52,615			50,300			2,671
Residential mortgage			18,657				17,824				3,501				17,119				16,533				2,914			15,598			15,241			2,008
Home equity lines of credit			531				531				51				505				505				5			—			—			—
Residential construction			9,427				8,883				1,037				8,469				7,001				688			7,257			6,757			662
Consumer installment			245				245				23				999				999				224			214			204			11
Indirect auto			—				—				—				—				—				—			—			—			—
Total with an allowance recorded			85,746				82,103				10,307				78,246				75,747				6,022			75,684			72,502			5,352
Total		$	115,945			$	109,031			$	10,307			$	125,791			$	114,619			$	6,022		$	115,981		$	105,341		$	5,352
There were no loans more than 90 days past due and still accruing interest at September 30, 2014, December 31, 2013 or September 30, 2013.  Nonaccrual loans include both homogeneous loans that are collectively evaluated for impairment and individually evaluated impaired loans.  United’s policy is to place loans on nonaccrual status when, in the opinion of management, the principal and interest on a loan is not likely to be repaid in accordance with the loan terms or when the loan becomes 90 days past due and is not well secured and in the process of collection.  When a loan is classified on nonaccrual status, interest previously accrued but not collected is reversed against current interest revenue.  Principal and interest payments received on a nonaccrual loan are applied to reduce outstanding principal.
The gross additional interest revenue that would have been earned if the loans classified as nonaccrual had performed in accordance with the original terms was approximately $705,000 and $346,000 for the three months ended September 30, 2014 and 2013, respectively, and $1.37 million and $1.69 million for the nine months ended September 30, 2014 and 2013, respectively.  The gross additional interest revenue that would have been earned for the three and nine months ended September 30, 2014 and 2013 had performing TDRs performed in accordance with the original terms is immaterial.
The average balances of impaired loans and income recognized on impaired loans while they were considered impaired are presented below for the three and nine months ended September 30, 2014 and 2013 (in thousands).
		2014												2013
						Interest												Interest
						Revenue				Cash Basis								Revenue				Cash Basis
						Recognized				Interest								Recognized				Interest
		Average				During				Revenue				Average				During				Revenue
Three Months Ended September 30,		Balance				Impairment				Received				Balance				Impairment				Received
Owner occupied commercial real estate		$	33,715			$	430			$	448			$	31,695			$	737			$	861
Income producing commercial real estate			26,622				325				341				23,608				599				600
Commercial & industrial			4,698				43				85				4,189				114				104
Commercial construction			12,203				119				96				13,501				244				246
Total commercial			77,238				917				970				72,993				1,694				1,811
Residential mortgage			19,235				215				215				18,548				425				435
Home equity lines of credit			538				6				5				522				11				11
Residential construction			13,146				130				130				14,136				346				307
Consumer installment			251				4				5				214				7				7
Indirect auto			—				—				—				—				—				—
Total		$	110,408			$	1,272			$	1,325			$	106,413			$	2,483			$	2,571
Nine Months Ended September 30,
Owner occupied commercial real estate		$	31,460			$	1,191			$	1,219			$	37,732			$	1,836			$	2,049
Income producing commercial real estate			26,299				953				991				38,328				1,077				1,077
Commercial & industrial			4,314				135				186				8,821				333				803
Commercial construction			12,086				335				338				14,620				509				593
Total commercial			74,159				2,614				2,734				99,501				3,755				4,522
Residential mortgage			20,384				672				670				19,382				860				841
Home equity lines of credit			531				16				17				524				22				21
Residential construction			13,315				452				455				14,219				850				882
Consumer installment			345				16				19				228				17				17
Indirect auto			—				—				—				—				—				—
Total		$	108,734			$	3,770			$	3,895			$	133,854			$	5,504			$	6,283
The following table presents the aging of the recorded investment in past due loans as of September 30, 2014, December 31, 2013 and September 30, 2013 by class of loans (in thousands).
		Loans Past Due																Loans Not
As of September 30, 2014		30 - 59 Days				60 - 89 Days				> 90 Days				Total				Past Due				Total
Owner occupied commercial real estate		$	2,769			$	257			$	947			$	3,973			$	1,149,960			$	1,153,933
Income producing commercial real estate			417				991			$	226				1,634				603,093				604,727
Commercial & industrial			900				103				861				1,864				647,989				649,853
Commercial construction			123				182				—				305				180,489				180,794
Total commercial			4,209				1,533				2,034				7,776				2,581,531				2,589,307
Residential mortgage			6,985				3,136				2,563				12,684				852,884				865,568
Home equity lines of credit			1,566				373				375				2,314				456,505				458,819
Residential construction			1,262				329				2,803				4,394				302,784				307,178
Consumer installment			995				322				191				1,508				103,837				105,345
Indirect auto			278				83				200				561				242,108				242,669
Total loans		$	15,295			$	5,776			$	8,166			$	29,237			$	4,539,649			$	4,568,886
As of December 31, 2013
Owner occupied commercial real estate		$	1,845			$	705			$	2,017			$	4,567			$	1,128,976			$	1,133,543
Income producing commercial real estate			3,879				2,092				530				6,501				616,666				623,167
Commercial & industrial			2,349				223				88				2,660				469,301				471,961
Commercial construction			94				190				235				519				148,384				148,903
Total commercial			8,167				3,210				2,870				14,247				2,363,327				2,377,574
Residential mortgage			9,011				2,832				4,140				15,983				859,094				875,077
Home equity lines of credit			2,056				430				941				3,427				437,460				440,887
Residential construction			1,335				588				1,375				3,298				325,281				328,579
Consumer installment			1,058				358				24				1,440				109,605				111,045
Indirect auto			185				65				42				292				195,812				196,104
Total loans		$	21,812			$	7,483			$	9,392			$	38,687			$	4,290,579			$	4,329,266
As of September 30, 2013
Owner occupied commercial real estate		$	1,332			$	910			$	1,896			$	4,138			$	1,125,014			$	1,129,152
Income producing commercial real estate			694				373				533				1,600				612,019				613,619
Commercial & industrial			763				191				93				1,047				456,367				457,414
Commercial construction			16				—				235				251				136,895				137,146
Total commercial			2,805				1,474				2,757				7,036				2,330,295				2,337,331
Residential mortgage			7,672				2,467				4,279				14,418				874,261				888,679
Home equity lines of credit			1,177				610				373				2,160				418,456				420,616
Residential construction			3,705				418				924				5,047				312,742				317,789
Consumer installment			633				19				94				746				115,789				116,535
Indirect auto			220				84				55				359				185,758				186,117
Total loans		$	16,212			$	5,072			$	8,482			$	29,766			$	4,237,301			$	4,267,067
As of September 30, 2014, December 31, 2013, and September 30, 2013, $9.82 million, $5.64 million and $4.72 million, respectively, of specific reserves were allocated to customers whose loan terms have been modified in TDRs.  United committed to lend additional amounts totaling up to $38,000, $6,000 and $3,000 as of September 30, 2014, December 31, 2013 and September 30, 2013, respectively, to customers with outstanding loans that are classified as TDRs.
The modification of the terms of the TDRs included one or a combination of the following:  a reduction of the stated interest rate of the loan or an extension of the amortization period that would not otherwise be considered in the current market for new debt with similar risk characteristics; a permanent reduction of the principal amount; a restructuring of the borrower’s debt into an A/B note structure where the A note would fall within the borrower’s ability to pay and the remainder would be included in the B note, or a mandated bankruptcy restructuring.
The following table presents information on TDRs including the number of loan contracts restructured and the pre- and post-modification recorded investment (dollars in thousands).
		30-Sep-14												31-Dec-13											30-Sep-13
						Pre-				Post-								Pre-				Post-						Pre-			Post-
					Modification				Modification								Modification				Modification						Modification			Modification
		Number			Outstanding				Outstanding					Number			Outstanding				Outstanding				Number		Outstanding			Outstanding
		of			Recorded				Recorded					of			Recorded				Recorded				of		Recorded			Recorded
		Contracts			Investment				Investment					Contracts			Investment				Investment				Contracts		Investment			Investment
Owner occupied commercial real estate			52			$	27,811			$	26,248				45			$	24,064			$	22,399			45		$	25,829		$	24,368
Income producing commercial real estate			32				19,652				19,104				32				20,900				18,268			32			22,134			18,795
Commercial & industrial			33				2,941				2,941				36				3,527				3,245			34			3,051			2,919
Commercial construction			14				11,238				11,084				13				13,122				13,042			12			12,904			12,825
Total commercial			131				61,642				59,377				126				61,613				56,954			123			63,918			58,907
Residential mortgage			160				19,555				18,356				133				20,117				18,852			115			18,511			17,408
Home equity lines of credit			4				531				531				3				505				505			5			521			521
Residential construction			50				10,916				10,084				57				12,459				10,452			55			12,360			10,290
Consumer installment			20				245				245				26				203				203			36			214			204
Indirect auto			—				—				—				—				—				—			—			—			—
Total loans			365				92,889				88,593				345				94,897			$	86,966			334			95,524			87,330
Loans modified under the terms of a TDR during the three and nine months ended September 30, 2014 and 2013 are presented in the table below.  In addition, the following table presents loans modified under the terms of a TDR that became 90 days or more delinquent during the three and nine months ended September 30, 2014 and 2013, that were initially restructured within one year prior to becoming delinquent (dollars in thousands).
		New Troubled Debt Restructurings																				New Troubled Debt Restructurings
		for the Three Months Ended September 30,																				for the Nine Months Ended September 30,
														Modified Within the																	Modified Within the
														Previous Twelve Months																	Previous Twelve Months
														that Have Subsequently																	that Have Subsequently
						Pre-			Post-					Defaulted During the										Pre-			Post-				Defaulted During the Nine
					Modification				Modification					Three Months Ended										Modification			Modification				Months Ended
					Outstanding				Outstanding					30-Sep-14										Outstanding			Outstanding				30-Sep-14
		Number of			Recorded				Recorded					Number of			Recorded					Number of		Recorded			Recorded				Number of		Recorded
2014		Contracts			Investment				Investment					Contracts			Investment					Contracts		Investment			Investment				Contracts		Investment
Owner occupied commercial real estate			2			$	747			$	747				—			$	—				9		$	4,139		$	4,139		$	1		$	104
Income producing commercial real estate			—				—				—				—				—				5			1,992			1,992			—			—
Commercial & industrial			6				452				452				—				—				10			782			782			2			54
Commercial construction			—				—				—				—				—				2			471			471			—			—
Total commercial			8				1,199				1,199				—				—				26			7,384			7,384			3			158
Residential mortgage			10				778				673				2				139				33			2,924			2,778			8			871
Home equity lines of credit			—				—				—				—				—				1			36			36			—			—
Residential construction			—				—				—				—				—				3			1,124			1,124			—			—
Consumer installment			—				—				—				—				—				5			226			226			—			—
Indirect auto			—				—				—				—				—				—			—			—			—			—
Total loans			18			$	1,977			$	1,872				2			$	139				68		$	11,694		$	11,548			11		$	1,029
														Modified Within the																Modified Within the
														Previous Twelve Months																Previous Twelve Months
														that Have Subsequently																that Have Subsequently
						Pre-				Post-				Defaulted During the											Pre-			Post-		Defaulted During the Nine
					Modification				Modification					Three Months Ended										Modification			Modification			Months Ended
					Outstanding				Outstanding					30-Sep-13										Outstanding			Outstanding			30-Sep-13
		Number of			Recorded				Recorded					Number of			Recorded					Number of		Recorded			Recorded			Number of			Recorded
2013		Contracts			Investment				Investment					Contracts			Investment					Contracts		Investment			Investment			Contracts			Investment
Owner occupied commercial real estate			1			$	1,841			$	741				—			$	—				11		$	5,923		$	4,823		$	1		$	432
Income producing commercial real estate			—				—				—				—				—				7			6,009			6,009			—			—
Commercial & industrial			1				68				68				—				—				10			883			777			1			35
Commercial construction			—				—				—				—				—				—			—			—			2			1,454
Total commercial			2				1,909				809				—				—				28			12,815			11,609			4			1,921
Residential mortgage			16				2,365				2,207				1				533				29			5,129			4,827			3			641
Home equity lines of credit			—				—				—				—				—				—			—			—			—			—
Residential construction			3				727				727				1				414				10			1,850			1,721			3			531
Consumer installment			1				7				7				2				9				5			28			28			5			29
Indirect auto			—				—				—				—				—				—			—			—			—			—
Total loans			22			$	5,008			$	3,750				4			$	956				72		$	19,822		$	18,185			15		$	3,122
Collateral dependent TDRs that subsequently default and are placed on nonaccrual are charged down to the fair value of the collateral consistent with United’s policy for nonaccrual loans.  Impairment on TDRs that are not collateral dependent continues to be measured on discounted cash flows regardless of whether the loan has subsequently defaulted.
As of September 30, 2014, December 31, 2013 and September 30, 2013, and based on the most recent analysis performed, the risk category of loans by class of loans is as follows (in thousands).
										Substandard								Doubtful /
As of September 30, 2014		Pass				Watch				Performing				Nonaccrual				Loss				Total
Owner occupied commercial real estate		$	1,076,822			$	25,098			$	49,857			$	2,156			$	—			$	1,153,933
Income producing commercial real estate			563,451				17,319				22,215				1,742				—				604,727
Commercial & industrial			637,160				3,602				7,498				1,593				—				649,853
Commercial construction			174,443				2,356				3,847				148				—				180,794
Total commercial			2,451,876				48,375				83,417				5,639				—				2,589,307
Residential mortgage			803,937				10,300				42,981				8,350				—				865,568
Home equity lines of credit			450,026				—				8,073				720				—				458,819
Residential construction			284,491				7,389				11,755				3,543				—				307,178
Consumer installment			102,460				—				2,746				139				—				105,345
Indirect auto			242,315				—				—				354				—				242,669
Total loans		$	4,335,105			$	66,064			$	148,972			$	18,745			$	—			$	4,568,886
As of December 31, 2013
Owner occupied commercial real estate		$	1,054,924			$	29,714			$	43,083			$	5,822			$	—			$	1,133,543
Income producing commercial real estate			575,597				10,410				34,642				2,518								623,167
Commercial & industrial			456,563				5,382				9,589				427				—				471,961
Commercial construction			120,852				10,932				16,758				361				—				148,903
Total commercial			2,207,936				56,438				104,072				9,128				—				2,377,574
Residential mortgage			793,381				25,944				44,022				11,730				—				875,077
Home equity lines of credit			426,052				5,420				7,967				1,448								440,887
Residential construction			298,685				11,526				14,104				4,264				—				328,579
Consumer installment			107,029				1,229				2,538				249				—				111,045
Indirect auto			196,104				—				—				—				—				196,104
Total loans		$	4,029,187			$	100,557			$	172,703			$	26,819			$	—			$	4,329,266
As of September 30, 2013
Owner occupied commercial real estate		$	1,046,900			$	35,948			$	39,946			$	6,358			$	—			$	1,129,152
Income producing commercial real estate			556,963				19,403				35,596				1,657				—				613,619
Commercial & industrial			436,401				10,062				10,342				609				—				457,414
Commercial construction			109,332				10,560				16,911				343				—				137,146
Total commercial			2,149,596				75,973				102,795				8,967				—				2,337,331
Residential mortgage			808,574				23,277				45,493				11,335				—				888,679
Home equity lines of credit			406,575				5,193				7,679				1,169				—				420,616
Residential construction			283,197				14,943				15,552				4,097				—				317,789
Consumer installment			112,706				1,162				2,147				520				—				116,535
Indirect auto			186,117				—				—				—				—				186,117
Total loans		$	3,946,765			$	120,548			$	173,666			$	26,088			$	—			$	4,267,067
Risk Ratings
United categorizes commercial 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, public information, and current industry and economic trends, among other factors.  United analyzes loans individually by classifying the loans as to credit risk.  This analysis is performed on a continual basis.  United uses the following definitions for its risk ratings:
Watch.  Loans in this category are presently protected from apparent loss; however, weaknesses exist that could cause future impairment, including the deterioration of financial ratios, past due status and questionable management capabilities.  These loans require more than the ordinary amount of supervision. Collateral values generally afford adequate coverage, but may not be immediately marketable.
Substandard.  These loans are inadequately protected by the current net worth and paying capacity of the obligor or by the collateral pledged.  Specific and well-defined weaknesses exist that may include poor liquidity and deterioration of financial ratios.  The loan may be past due and related deposit accounts experiencing overdrafts.  There is the distinct possibility that United will sustain some loss if deficiencies are not corrected. If possible, immediate corrective action is taken.
Doubtful.  Specific weaknesses characterized as Substandard that are severe enough to make collection in full highly questionable and improbable.  There is no reliable secondary source of full repayment.
Loss.  Loans categorized as Loss have the same characteristics as Doubtful; however, probability of loss is certain.  Loans classified as Loss are charged off.
Consumer Purpose Loans.  Beginning in the first quarter of 2014, United began to apply a pass / fail grading system to all consumer purpose loans.  Under the pass / fail grading system, consumer purpose loans meeting the criteria of substandard are classified as “fail” and all other loans are classified as “pass”.  For reporting purposes, consumer purpose loans classified as “fail” are reported in the performing substandard or nonaccrual columns and all other consumer purpose loans are reported in the “pass” column.  The first quarter grading change resulted in decreases in loans categorized as “watch” for the consumer installment, residential mortgage and home equity lines of credit loan classifications.  Loan balances reported in the “watch” column for residential mortgage in the first quarter are generally commercial purpose loans secured by the borrower’s residence.
Loans not meeting the criteria above that are analyzed individually as part of the above described process are considered to be pass rated loans.
The following table presents the recorded investment (unpaid principal less amounts charged off) in nonaccrual loans by loan class as of September 30, 2014, December 31, 2013 and September 30, 2013 (in thousands).
		Nonaccrual Loans
		September 30,			December 31,					September 30,
		2014			2013					2013
Owner occupied commercial real estate		$	2,156			$	5,822			$	6,358
Income producing commercial real estate			1,742				2,518				1,657
Commercial & industrial			1,593				427				609
Commercial construction			148				361				343
Total commercial			5,639				9,128				8,967
Residential mortgage			8,350				11,730				11,335
Home equity lines of credit			720				1,448				1,169
Residential construction			3,543				4,264				4,097
Consumer installment			139				249				520
Indirect auto			354				—				—
Total		$	18,745			$	26,819			$	26,088
Balance as a percentage of unpaid principal			68.6	%			65.3	%			61.6	%

Foreclosed_Property

Foreclosed Property	9 Months Ended
	Sep. 30, 2014
Foreclosed Property [Abstract]	'
Foreclosed Property	'
	Note 7 – Foreclosed Property
	Major classifications of foreclosed properties at September 30, 2014, December 31, 2013 and September 30, 2013 are summarized as follows (in thousands).
			September 30,				December 31,				September 30,
			2014				2013				2013
	Commercial real estate		$	1,350			$	1,287			$	1,130
	Commercial construction			—				—				376
	Total commercial			1,350				1,287				1,506
	Residential mortgage			1,954				3,380				2,420
	Residential construction			588				736				1,981
	Total foreclosed property			3,892				5,403				5,907
	Less valuation allowance			(746	)			(1,182	)			(1,440	)
	Foreclosed property, net		$	3,146			$	4,221			$	4,467
	Balance as a percentage of original loan unpaid principal			54.5	%			44.5	%			41.5	%
	Activity in the valuation allowance for foreclosed property for the three and nine months ended September 30, 2014 and 2013 is presented in the following table (in thousands).
		Three Months Ended									Nine Months Ended
		September 30,									September 30,
			2014				2013				2014				2013
	Balance at beginning of period		$	741			$	3,602			$	1,182			$	6,954
	Additions charged to expense			108				329				690				2,739
	Disposals			(103	)			(2,491	)			(1,126	)			(8,253	)
	Balance at end of period		$	746			$	1,440			$	746			$	1,440
	Expenses related to foreclosed property for the three and nine months ended September 30, 2014 and 2013 is presented in the following table (in thousands).
		Three Months Ended								Nine Months Ended
		September 30,								September 30,
		2014				2013				2014				2013
	Net (gain)/loss on sales		$	(264	)		$	513			$	(1,208	)		$	3,563
	Provision for unrealized losses			108				329				690				2,739
	Operating expenses			441				(648	)			1,021				1,376
	Total foreclosed property expense		$	285			$	194			$	503			$	7,678

Reclassifications_Out_of_Accum

Reclassifications Out of Accumulated Other Comprehensive Income	9 Months Ended
	Sep. 30, 2014
Reclassifications Out Of Accumulated Other Comprehensive Income [Abstract]	'
Reclassifications Out of Accumulated Other Comprehensive Income	'
	Note 8 – Reclassifications Out of Accumulated Other Comprehensive Income
	The following table presents the details regarding amounts reclassified out of accumulated other comprehensive income for the three and nine months ended September 30, 2014 and 2013 (in thousands).
			Amounts Reclassified from Accumulated Other
			Comprehensive Income
		For the three months ended							For the nine months ended
	Details about Accumulated Other		September 30,							September 30,						Affected Line Item in the Statement
	Comprehensive Income Components		2014			2013				2014			2013			Where Net Income is Presented
	Realized gains on sales of available-for-sale securities:
			$	11		$	—			$	4,663		$	116		Securities gains, net
				(4	)		—				(1,821	)		(45	)	Tax expense
			$	7		$	—			$	2,842		$	71		Net of tax
	Amortization of (losses) gains included in net income on available-for-sale securities transferred to held to maturity:
			$	(468	)	$	214			$	(1,207	)	$	803		Investment securities interest revenue
				176			(83	)			453			(310	)	Tax benefit (expense)
			$	(292	)	$	131			$	(754	)	$	493		Net of tax
	Amounts included in net income on derivative financial instruments accounted for as cash flow hedges:
	Effective portion of interest rate contracts		$	—		$	10			$	—		$	850		Loan interest revenue
	Ineffective portion of interest rate contracts			—			48				—			52		Loan interest revenue
	Effective portion of interest rate contracts			(317	)		—				(764	)		—		Brokered deposit interest expense
	Amortization of losses on de-designated positions			(81	)		—				(105	)		—		Money market deposit interest expense
	Amortization of losses on de-designated positions			(313	)		—				(512	)		—		Brokered deposit interest expense
				(711	)		58				(1,381	)		902		Total before tax
				277			(23	)			538			(351	)	Tax or benefit (expense)
			$	(434	)	$	35			$	(843	)	$	551		Net of tax
	Amortization of prior service cost and actuarial losses included in net periodic pension cost for defined benefit pension plan
	Prior service cost		$	(91	)	$	(91	)		$	(274	)	$	(273	)	Salaries and employee benefits expense
	Actuarial losses			—			(42	)			—			(126	)	Salaries and employee benefits expense
				(91	)		(133	)			(274	)		(399	)	Total before tax
				36			52				107			155		Tax benefit
			$	(55	)	$	(81	)		$	(167	)	$	(244	)	Net of tax
	Total reclassifications for the period		$	(774	)	$	85			$	1,078		$	871		Net of tax
	Amounts shown above in parentheses reduce earnings

Earnings_Per_Share

Earnings Per Share	9 Months Ended
	Sep. 30, 2014
Earnings Per Share [Abstract]	'
Earnings Per Share	'
	Note 9 – Earnings Per Share
	United is required to report on the face of the consolidated statement of income, earnings per common share with and without the dilutive effects of potential common stock issuances from instruments such as options, convertible securities and warrants. Basic earnings per common share is based on the weighted average number of common shares outstanding during the period while the effects of potential common shares outstanding during the period are included in diluted earnings per common share.
	During the three and nine months ended September 30, 2014 and 2013, United accrued dividends on preferred stock, including accretion of discounts, as shown in the following table (in thousands).
		Three Months Ended				Nine Months Ended
		September 30,				September 30,
		2014		2013		2014		2013
	Series A - 6% fixed	$	—	$	3	$	—	$	9
	Series B - 5% fixed until December 6, 2013, 9% thereafter		—		2,641		159		7,907
	Series D - LIBOR plus 9.6875%, resets quarterly		—		415		280		1,250
	Total preferred stock dividends	$	—	$	3,059	$	439	$	9,166
	Series B preferred stock was issued at a discount. Dividend amounts shown include discount accretion for each period.
	The preferred stock dividends were subtracted from net income in order to arrive at net income available to common shareholders.  All of United’s preferred stock was redeemed during the fourth quarter of 2013 and the first quarter of 2014.
	The following table sets forth the computation of basic and diluted earnings per share for the three and nine months ended September 30, 2014 and 2013 (in thousands, except per share data).
		Three Months Ended				Nine Months Ended
		September 30,				September 30,
		2014		2013		2014		2013
	Net income available to common shareholders	$	17,616	$	12,441	$	48,934	$	248,063
	Weighted average shares outstanding:
	Basic		60,776		59,100		60,511		58,443
	Effect of dilutive securities
	Stock options		3		1		2		1
	Warrants		—		101		—		—
	Diluted		60,779		59,202		60,513		58,444
	Income per common share:
	Basic	$	0.29	$	0.21	$	0.81	$	4.24
	Diluted	$	0.29	$	0.21	$	0.81	$	4.24
	At September 30, 2014, United had the following potentially dilutive stock options and warrants outstanding: a warrant to purchase 219,909 common shares at $61.40 per share originally issued to the U.S. Treasury; 305,291 common shares issuable upon exercise of stock options granted to employees with a weighted average exercise price of $95.98; 801,334 shares issuable upon completion of vesting of restricted stock awards; and warrants to purchase common stock equivalent junior preferred stock that would be convertible into 1,411,765 common shares exercisable at $21.25 per share granted to Fletcher International Ltd. (“Fletcher”) in connection with a 2010 asset purchase and sale agreement.  On March 5, 2014, United announced that it and the Chapter 11 Trustee for Fletcher had agreed to settle all potential claims and counterclaims between them relating to or arising out of, among other things, their respective rights and obligations under such warrants.  Pursuant to the settlement agreement with Fletcher, United has agreed to repurchase the warrants and resolve all claims between the parties.  The settlement agreement and the transactions contemplated thereby have been approved by the bankruptcy court and are no longer subject to appeal. As noted in Note 12, in November 2014, the settlement was completed and the net proceeds were paid to Fletcher.
	At September 30, 2013, United had the following potentially dilutive stock options and warrants outstanding: a warrant to purchase 219,909 common shares at $61.40 per share originally issued to the U.S. Treasury; 371,449 common shares issuable upon exercise of stock options granted to employees with a weighted average exercise price of $98.54; 1,073,259 shares issuable upon completion of vesting of restricted stock awards; warrants to purchase common stock equivalent junior preferred stock that would be convertible into 1,411,765 common shares exercisable at $21.25 per share granted to Fletcher in connection with a 2010 asset purchase and sale agreement.

Derivatives_and_Hedging_Activi

Derivatives and Hedging Activities	9 Months Ended
	Sep. 30, 2014
Derivatives and Hedging Activities [Abstract]	'
Derivatives and Hedging Activities	'
	Note 10 – Derivatives and Hedging Activities
	Risk Management Objective of Using Derivatives
	United is exposed to certain risks arising from both its business operations and economic conditions.  United principally manages its exposures to a wide variety of business and operational risks through management of its core business activities. United manages interest rate risk primarily by managing the amount, sources, and duration of its investment securities portfolio and wholesale funding and through the use of derivative financial instruments.  Specifically, United enters into derivative financial instruments to manage exposures that arise from business activities that result in the receipt or payment of future known and uncertain cash amounts, the value of which are determined by interest rates.  United’s derivative financial instruments are used to manage differences in the amount, timing, and duration of United’s known or expected cash receipts and its known or expected cash payments principally related to United’s loans, investment securities, wholesale borrowings and deposits.
	In conjunction with the FASB’s fair value measurement guidance, United made an accounting policy election to measure the credit risk of its derivative financial instruments that are subject to master netting agreements on a gross basis.
	The table below presents the fair value of United’s derivative financial instruments as well as their classification on the consolidated balance sheet as of September 30, 2014, December 31, 2013 and September 30, 2013 (in thousands).
	Derivatives designated as hedging instruments under ASC 815
					Fair Value
			Balance Sheet		September 30,				December 31,				September 30,
	Interest Rate Products		Location		2014				2013				2013
	Cash flow hedge of money market deposits		Other assets		$	1,349			$	4,782			$	3,580
	Fair value hedge of corporate bonds		Other assets			—				3,939				2,709
					$	1,349			$	8,721			$	6,289
	Cash flow hedge of short-term debt		Other liabilities		$	—			$	3,368			$	3,247
	Cash flow hedge of money market deposits		Other liabilities			—				—				431
	Fair value hedge of brokered CD’s		Other liabilities			10,201				19,970				28,748
	Fair value hedge of corporate bonds		Other liabilities			—				2,308				3,025
					$	10,201			$	25,646			$	35,451
	Derivatives not designated as hedging instruments under ASC 815
					Fair Value
			Balance Sheet		September 30,				December 31,				September 30,
	Interest Rate Products		Location		2014				2013				2013
	Customer swap positions		Other assets		$	2,067			$	898			$	1,096
	Dealer offsets to customer swap positions		Other assets			475				1,347				707
	Bifurcated embedded derivatives		Other assets			14,780				12,867				—
	Offsetting positions for de-designated cash flow hedges		Other assets			3,550				—				—
					$	20,872			$	15,112			$	1,803
	Customer swap positions		Other liabilities		$	475			$	1,347			$	707
	Dealer offsets to customer swap positions		Other liabilities			2,087				915				1,111
	Dealer offsets to bifurcated embedded derivatives		Other liabilities			19,858				18,324				—
	De-designated cash flow hedge of brokered CDs		Other liabilities			2,645				—				—
	De-designated cash flow hedge of money market deposits		Other liabilities			905				—				—
					$	25,970			$	20,586			$	1,818
	Derivative contracts that are not accounted for as hedging instruments under ASC 815, Derivatives and Hedging, and are described as “customer derivatives,” are between United and certain commercial loan customers with offsetting positions to dealers under a back-to-back swap program.  United also has three interest rate swap contracts that are not designated as hedging instruments but are economic hedges of market linked brokered certificates of deposit.  The market linked brokered certificates of deposit contain embedded derivatives that are bifurcated from the host instruments and marked to market through earnings.  The marks on the market linked swaps and the bifurcated embedded derivatives tend to move in opposite directions with changes in 90-day LIBOR and therefore provide an effective economic hedge.
	Cash Flow Hedges of Interest Rate Risk
	United’s objectives in using interest rate derivatives are to add stability to net interest revenue and to manage its exposure to interest rate movements.  To accomplish this objective, United uses interest rate swaps as part of its interest rate risk management strategy.  At September 30, 2014, United’s interest rate swaps designated as cash flow hedges involved the payment of fixed-rate amounts to a counterparty in exchange for United receiving variable-rate payments over the life of the agreements without exchange of the underlying notional amount.  United’s current cash flow hedges are for the purpose of converting variable rate deposits and wholesale borrowings to a fixed rate to protect United in a rising rate environment.  At September 30, 2014, United had two swap contracts outstanding with a total notional amount of $275 million that were designated as cash flow hedges of indexed money market accounts.  One of the swaps with a notional amount of $175 million is forward starting and will become effective later in 2015.  At December 31, 2013 and September 30, 2013, United had three swap contracts outstanding with a total notional amount of $200 million that were designated as cash flow hedges of future issuances of three-month brokered deposits or other LIBOR based floating rate wholesale borrowings, and three swap contracts outstanding with a total notional amount of $375 million that were designated as cash flow hedges of indexed money market accounts.  During the second quarter of 2014, United de-designated swaps with a notional of $400 million and put on offsetting positions which had a similar effect to terminating the positions.  Changes in United’s balance sheet composition and interest rate risk position made the hedges no longer necessary as protection against rising interest rates.  The loss remaining in other comprehensive income on the de-designated swaps is being amortized into earnings over the original term of the swaps as the forecasted transactions that the swaps were originally designated to hedge are still expected to occur.
	The effective portion of changes in the fair value of derivatives designated and that qualify as cash flow hedges is recorded in accumulated other comprehensive income and is subsequently reclassified into earnings in the period that the hedged forecasted transaction affects earnings.  Amounts reported in accumulated other comprehensive income related to derivatives will be reclassified to interest expense when the swaps become effective, as interest payments are made on United’s LIBOR based, variable-rate wholesale borrowings and indexed deposit accounts.  United’s active forward starting cash flow hedges of floating rate liabilities began interest settlements in the first quarter of 2014.  United recognized $12,000 in hedge ineffectiveness gains and $73,000 in hedge ineffectiveness losses, respectively, in interest expense on active cash flow hedges during the third quarter and first nine months of 2014.  United recognized $33,000 in hedge ineffectiveness gains during the third quarter and first nine months of 2013.  United expects that $3.77 million will be reclassified as an increase to deposit interest expense over the next twelve months related to these cash flow hedges.
	During the three and nine months ended September 30, 2013, United accelerated the reclassification of $48,000 and $53,000, respectively, in gains from terminated positions, as a result of the forecasted transactions becoming probable not to occur.  These amounts were recognized in loan interest revenue as hedge ineffectiveness.
	Fair Value Hedges of Interest Rate Risk
	United is exposed to changes in the fair value of certain of its fixed rate investments and obligations due to changes in interest rates. United uses interest rate swaps to manage its exposure to changes in fair value on these instruments attributable to changes in interest rates.  Interest rate swaps designated as fair value hedges of brokered deposits involve the receipt of fixed-rate amounts from a counterparty in exchange for United making variable rate payments over the life of the agreements without the exchange of the underlying notional amount.  Interest rate swaps designated as fair value hedges of fixed rate investments involve the receipt of variable-rate amounts from a counterparty in exchange for United making fixed rate payments over the life of the instrument without the exchange of the underlying notional amount.  At September 30, 2014, United had 16 interest rate swaps with an aggregate notional amount of $199 million that were designated as fair value hedges of interest rate risk.  These contracts were pay-variable / receive-fixed swaps hedging changes in the fair value of fixed rate brokered time deposits resulting from changes in interest rates.  At September 30, 2013, United had 27 interest rate swaps with an aggregate notional amount of $387 million that were designated as fair value hedges.  At September 30, 2013, eight of the interest rate swaps with an aggregate notional amount of $86 million were receive-variable / pay-fixed swaps that were used for the purpose of hedging changes in the fair value of corporate bonds resulting from changes in interest rates.  These swaps were cancelled and the bonds were sold in the second quarter of 2014.  The other 19 were pay-variable / receive-fixed swaps hedging changes in fair value of fixed rate brokered time deposits resulting from changes in interest rates.
	For derivatives designated and that qualify as fair value hedges, the gain or loss on the derivative as well as the offsetting loss or gain on the hedged item attributable to the hedged risk are recognized in earnings. United includes the gain or loss on the hedged items in the same income statement line item as the offsetting loss or gain on the related derivatives.  During the three and nine months ended September 30, 2014 United recognized net losses of $312,000 and $937,000, respectively, and during the three and nine months ended September 30, 2013, United recognized net gains of $38,000 and $241,000, respectively, related to ineffectiveness of the fair value hedging relationships.  United also recognized net reductions of interest expense of $1.04 million and $3.47 million, respectively, for the three and nine months ended September 30, 2014 and net reductions of interest expense of $2.47 million and $4.73 million, respectively, for the three and nine months ended September 30, 2013 related to United’s fair value hedges of brokered time deposits, which include net settlements on the derivatives.  United recognized reductions of interest revenue on securities during the nine months ended September 30, 2014 in the amount of $955,000 related to United’s fair value hedges of corporate bonds that were terminated in the second quarter of 2014.  For the three and nine months ended September 30, 2013, United recognized reductions of interest revenue on securities in the amounts of $516,000 and $811,000, respectively related to United’s fair value hedges of corporate bonds.
	Tabular Disclosure of the Effect of Derivative Instruments on the Income Statement
	The tables below present the effect of United’s derivative financial instruments on the consolidated statement of operations for the three and nine months ended September 30, 2014 and 2013.
	Derivatives in Fair Value Hedging Relationships (in thousands).
			Location of Gain		Amount of Gain (Loss)								Amount of Gain (Loss)
			(Loss) Recognized		Recognized in Income								Recognized in Income
			in Income on		on Derivative								on Hedged Item
			Derivative		2014				2013				2014				2013
	Three Months Ended September 30,
	Fair value hedges of brokered CD’s		Interest expense		$	(37	)		$	(2,849	)		$	(275	)		$	2,872
	Fair value hedges of corporate bonds		Interest revenue			—				109				—				(94	)
					$	(37	)		$	(2,740	)		$	(275	)		$	2,778
	Nine Months Ended September 30,
	Fair value hedges of brokered CD’s		Interest expense		$	10,078			$	(20,134	)		$	(10,691	)		$	19,988
	Fair value hedges of corporate bonds		Interest revenue			(2,487	)			4,338				2,163				(3,951	)
					$	7,591			$	(15,796	)		$	(8,528	)		$	16,037
	In certain cases, the estate of deceased brokered certificate of deposit holders may put the certificate of deposit back to the issuing bank at par upon the death of the holder.  When these estate puts occur, a gain or loss is recognized for the difference between the fair value and the par amount of the deposits put back.  The change in the fair value of brokered time deposits that are being hedged in fair value hedging relationships reported in the table above includes gains and losses from estate puts and such gains and losses are included in the amount of reported ineffectiveness gains or losses.
	Derivatives in Cash Flow Hedging Relationships (in thousands).
		Amount of Gain (Loss)
		Recognized in Other								Gain (Loss) Reclassified from
		Comprehensive								Accumulated Other Comprehensive									Gain (Loss) Recognized in Income on
		Income on Derivative								Income into Income									Derivative
		(Effective Portion)								(Effective Portion)									(Ineffective Portion)
		2014					2013			Location		2014			2013				Location	2014			2013
Three Months Ended September 30,
									Interest revenue		$	—			$	58
									Interest expense			(711	)			—
Interest rate swaps		$	412			$	(3,507	)	Total		$	(711	)		$	58		Interest expense	$	12			$	(33	)
Nine Months Ended September 30,
									Interest revenue		$	—			$	902
									Interest expense			(1,381	)			—
Interest rate swaps		$	(5,967	)		$	8,595		Total		$	(1,381	)		$	902		Interest expense	$	(73	)		$	46
Credit-Risk-Related Contingent Features
United manages its credit exposure on derivatives transactions by entering into a bilateral credit support agreement with each counterparty.  The credit support agreements require collateralization of exposures beyond specified minimum threshold amounts.  The details of these agreements, including the minimum thresholds, vary by counterparty.  As of September 30, 2014, collateral totaling $38.2 million was pledged toward derivatives in a liability position.
United’s agreements with each of its derivative counterparties contain a provision where if either party defaults on any of its indebtedness, then it could also be declared in default on its derivative obligations.  The agreements with derivatives counterparties also include provisions that if not met, could result in United being declared in default.  United has agreements with certain of its derivative counterparties that contain a provision where if United fails to maintain its status as a well-capitalized institution or is subject to a prompt corrective action directive, the counterparty could terminate the derivative positions and United would be required to settle its obligations under the agreements.

StockBased_Compensation

Stock-Based Compensation	9 Months Ended
	Sep. 30, 2014
Disclosure Of Compensation Related Costs, Share-Based Payments [Abstract]	'
Stock-Based Compensation	'
	Note 11 – Stock-Based Compensation
	United has an equity compensation plan that allows for grants of incentive stock options, nonqualified stock options, restricted stock and restricted stock unit awards (also referred to as “nonvested stock” awards), stock awards, performance share awards or stock appreciation rights.  Options granted under the plan can have an exercise price no less than the fair market value of the underlying stock at the date of grant.  The general terms of the plan include a vesting period (usually four years) with an exercisable period not to exceed ten years.  Certain options, restricted stock and restricted stock unit awards provide for accelerated vesting if there is a change in control (as defined in the plan).  As of September 30, 2014, 529,000 additional awards could be granted under the plan. Through September 30, 2014, incentive stock options, nonqualified stock options, restricted stock and restricted stock unit awards, base salary stock grants and performance share awards have been granted under the plan.
	The following table shows stock option activity for the first nine months of 2014.
								Weighted-
								Average		Aggregate
						Weighted-		Remaining		Intrinisic
						Average Exercise		Contractual		Value
	Options		Shares			Price		Term (Years)		$0
	Outstanding at December 31, 2013			350,772		$	97.87
	Expired			(45,481	)		110.57
	Outstanding at September 30, 2014			305,291			95.98		2.9	$	59
	Exercisable at September 30, 2014			299,041			97.7		2.8		41
	The fair value of each option is estimated on the date of grant using the Black-Scholes model.  Key assumptions used to determine the fair value of options granted to employees during the first nine months of 2013 are shown below.  No stock options were granted during the nine months ended September 30, 2014.
		Nine Months Ended
		September 30,
		2014		2013
	Expected volatility	NA		30.00%
	Expected dividend yield	NA		0.00%
	Expected life (in years)	NA		6.25
	Risk-free rate	NA		2.01%
	Most of United’s outstanding stock options were granted prior to the economic downturn during which time United’s stock price decreased sharply.  The lower stock price has rendered most of United’s outstanding options severely out of the money and potentially worthless to the grantee.  Therefore, historical exercise patterns do not provide a reasonable basis for determining the expected life of new option grants.  United therefore uses the formula provided by the SEC in Staff Accounting Bulletin No. 107 to determine the expected life of options.
	United recognized $5,000 in compensation expense related to stock options during the nine months ended September 30, 2014.  Compensation expense relating to stock options for the nine months ended September 30, 2013 was a reduction of expense of $56,000 due to the reversal of previously recognized expense on grants that did not vest.  The amount of compensation expense was determined based on the fair value of the options at the time of grant, multiplied by the number of options granted that were expected to vest, which was then amortized over the vesting period.  The forfeiture rate for new options issued is estimated to be approximately 3% per year.  No options were exercised during the first nine months of 2014 or 2013.
	The table below presents restricted stock activity for the first nine months of 2014.
						Weighted-
						Average Grant-
	Restricted Stock		Shares			Date Fair Value
	Outstanding at December 31, 2013			1,073,676		$	13.73
	Granted			55,066			17.73
	Excercised			(324,108	)		12.24
	Cancelled			(3,300	)		13.18
	Outstanding at September 30, 2014			801,334			14.61
	Vested at September 30, 2014			7,580			9.9
	Compensation expense for restricted stock is based on the fair value of restricted stock awards at the time of grant, which is equal to the value of United’s common stock on the date of grant.  The value of restricted stock grants that are expected to vest is amortized into expense over the vesting period.  For the nine months ended September 30, 2014 and 2013, compensation expense of $3.23 million and $2.01 million, respectively, was recognized related to restricted stock awards.  In addition, for the nine months ended September 30, 2014 and 2013, $76,000 and $118,000, respectively, was recognized in other operating expense for restricted stock units granted to members of United’s board of directors.  The total intrinsic value of outstanding restricted stock awards was $13.2 million at September 30, 2014.
	As of September 30, 2014, there was $10.0 million of unrecognized compensation cost related to non-vested stock options and restricted stock awards granted under the plan.  That cost is expected to be recognized over a weighted-average period of 3.0 years.  The aggregate grant date fair value of options and restricted stock awards that vested during the nine months ended September 30, 2014, was $3.83 million.

Common_and_Preferred_Stock_Iss

Common and Preferred Stock Issued / Common Stock Issuable	9 Months Ended
	Sep. 30, 2014
Equity [Abstract]	'
Common and Preferred Stock Issued / Common Stock Issuable	'
	Note 12 – Common and Preferred Stock Issued / Common Stock Issuable
	United sponsors a Dividend Reinvestment and Share Purchase Plan (“DRIP”) that allows participants who already own United’s common stock to purchase additional shares directly from United.  The DRIP also allows participants to automatically reinvest their quarterly dividends in additional shares of common stock without a commission.  No shares were issued through the DRIP in 2013 as the DRIP was suspended during that time.  The DRIP was re-activated following United’s reinstatement of its quarterly dividend in the second quarter of 2014.  In the third quarter of 2014, no shares were issued through the DRIP.
	United’s 401(k) retirement plan regularly purchases shares of United’s common stock directly from United.  In addition, United has an Employee Stock Purchase Program that allows eligible employees to purchase shares of common stock at a 5% discount, with no commission charges.  For the nine months ended September 30, 2014 and 2013, United issued 25,284 and 49,830 shares, respectively, and increased capital by $424,000 and $582,000, respectively, through these programs.
	United offers its common stock as an investment option in its deferred compensation plan.  United also allows for the deferral of restricted stock awards.  The common stock component of the deferred compensation plan is accounted for as an equity instrument and is reflected in the consolidated financial statements as common stock issuable.  The deferred compensation plan does not allow for diversification once an election is made to invest in United’s common stock and settlement must be accomplished in shares at the time the deferral period is completed. At September 30, 2014 and 2013, 354,961 and 242,262 shares of common stock, respectively, were issuable under the deferred compensation plan.
	In the fourth quarter of 2013 and first quarter of 2014, United redeemed all of its outstanding preferred stock.  The preferred stock was redeemed at par and did not result in any gain or loss.  The redemptions were funded from a combination of dividends from United Community Bank, borrowings on United’s holding company line of credit and cash on hand.
	Pursuant to its settlement agreement with Fletcher, United agreed to deliver 640,000 shares of its common stock and cash that, together with the common stock, would have a combined fair value of $12 million.  On March 25, 2014, to satisfy its obligations under the settlement agreement, United completed the sale of 640,000 shares of common stock and received approximately $12.2 million in net proceeds after discounts and expenses, $12.0 million of which is payable to Fletcher once the settlement is completed.  In November 2014, the settlement was completed and the net proceeds were paid to Fletcher.

Income_Taxes

Income Taxes	9 Months Ended
	Sep. 30, 2014
Income Tax Disclosure [Abstract]	'
Income Taxes	'
	Note 13 – Income Taxes
	The income tax provision for the three and nine months ended September 30, 2014 was $9.99 million and $28.7 million, respectively, which represents effective tax rates of 36.2% and 36.7%, respectively.  The income tax provision for the three and nine months ended September 30, 2013 was $9.52 million and a net benefit of $247 million, respectively.  The net income tax benefit for the first nine months of 2013 reflects the reversal of a $272 million valuation allowance on United’s net deferred tax asset.  At September 30, 2014, December 31, 2013 and September 30, 2013, the valuation allowance on United’s net deferred tax asset was $4.45 million, $4.10 million and $4.61 million, respectively.  Management assesses the valuation allowance recorded against its net deferred tax asset at each reporting period.  The determination of whether a valuation allowance for its net deferred tax asset is appropriate is subject to considerable judgment and requires an evaluation of all the positive and negative evidence.
	In the second quarter of 2013, United reversed $272 million of the valuation allowance on its net deferred tax asset.  United had established a full valuation allowance on its net deferred tax asset in 2010 due to the realization of significant losses and uncertainty about United’s future earnings forecasts.
	United evaluated the need for a valuation allowance again at September 30, 2014.  Based on the assessment of all the positive and negative evidence, management concluded that it is more likely than not that nearly all of its net deferred tax asset will be realized based upon future taxable income.  The remaining valuation allowance of $4.45 million is related to specific state income tax credits that have short carryforward periods and are expected to expire unused.  The positive evidence considered by management in arriving at the conclusion that a full valuation allowance is not necessary included consecutive profitable quarters beginning with the fourth quarter of 2011, United’s strong pre-crisis earnings history and growth in pre-tax, pre-credit earnings, which demonstrate demand for United’s products and services, and United’s significant improvement in credit measures, which improve both the sustainability of profitability and management’s ability to forecast future credit losses.  The negative evidence previously considered by management included a three-year cumulative loss position and United’s and United Community Bank’s informal memorandums of understanding with the bank regulatory agencies.  The informal memorandums of understanding were terminated in the fourth quarter of 2013 and first quarter of 2014 and United was no longer in a three-year cumulative loss position effective with the first quarter of 2014, based on a rolling twelve quarters.
	The valuation allowance could fluctuate in future periods based on the assessment of the positive and negative evidence.  Management’s conclusion at September 30, 2014 that it was more likely than not that United’s net deferred tax asset of $225 million will be realized is based upon management’s estimate of future taxable income.  Management’s estimate of future taxable income is based on internal forecasts that consider historical performance, various internal estimates and assumptions, as well as certain external data all of which management believes to be reasonable although inherently subject to significant judgment.  If actual results differ significantly from the current estimates of future taxable income, even if caused by adverse macro-economic conditions, the valuation allowance may need to be increased for some or all of its net deferred tax asset.  Such an increase to the net deferred tax asset valuation allowance could have a material adverse effect on United’s financial condition and results of operations.
	United is subject to income taxation in the United States and various state jurisdictions.  United’s federal and state income tax returns are filed on a consolidated basis.  Currently, no years for which United filed a federal income tax return are under examination by the IRS, and there are no state tax examinations currently in progress.  United is no longer subject to income tax examinations from state and local income tax authorities for years before 2010.  Although United is unable to determine the ultimate outcome of future examinations, United believes that the liability recorded for uncertain tax positions is appropriate.
	At September 30, 2014, December 31, 2013 and September 30, 2013, unrecognized income tax benefits totaled $4.10 million, $4.50 million and $4.45 million, respectively.  In the first quarter of 2014, United adopted the provisions of ASU No. 2013-11, Presentation of an Unrecognized Tax Benefit When a Net Operating Loss Carryforward, a Similar Tax Loss, or a Tax Credit Carryforward Exists.  ASU No. 2013-11 requires unrecognized tax benefits to be presented as a reduction of a deferred tax asset unless certain conditions are present.  Prior to adoption, unrecognized tax benefits were presented as a component of the current tax liability payable.  Upon adoption, United reclassified $4.59 million in unrecognized tax benefits from other liabilities to its net deferred tax asset.  The reclassification resulted in decreases in United’s net deferred tax asset and other liabilities.

Assets_and_Liabilities_Measure

Assets and Liabilities Measured at Fair Value	9 Months Ended
	Sep. 30, 2014
Fair Value [Abstract]	'
Assets and Liabilities Measured at Fair Value	'
	Note 14 – Assets and Liabilities Measured at Fair Value
	Fair value measurements are determined based on the assumptions that market participants would use in pricing the asset or liability.  As a basis for considering market participant assumptions in fair value measurements, United uses a fair value hierarchy that distinguishes between market participant assumptions based on market data obtained from sources independent of the reporting entity (observable inputs that are classified within Levels 1 and 2 of the hierarchy) and the reporting entity’s own assumptions about market participant assumptions (unobservable inputs classified within Level 3 of the hierarchy).
	Fair Value Hierarchy
	Level 1     Valuation is based upon quoted prices (unadjusted) in active markets for identical assets or liabilities that United has the ability to access.
	Level 2     Valuation is based upon quoted prices for similar assets and liabilities in active markets, as well as inputs that are observable for the asset or liability (other than quoted prices), such as interest rates, foreign exchange rates, and yield curves that are observable at commonly quoted intervals.
	Level 3     Valuation is generated from model-based techniques that use at least one significant assumption based on unobservable inputs for the asset or liability, which are typically based on an entity’s own assumptions, as there is little, if any, related market activity. In instances where the determination of the fair value measurement is based on inputs from different levels of the fair value hierarchy, the level in the fair value hierarchy within which the entire fair value measurement falls is based on the lowest level input that is significant to the fair value measurement in its entirety. United’s assessment of the significance of a particular input to the fair value measurement in its entirety requires judgment, and considers factors specific to the asset or liability.
	The following is a description of the valuation methodologies used for assets and liabilities recorded at fair value.
	Securities Available-for-Sale
	Investment securities available-for-sale are recorded at fair value on a recurring basis. Fair value measurement is based upon quoted prices, if available. If quoted prices are not available, fair values are measured using independent pricing models or other model-based valuation techniques such as the present value of future cash flows, adjusted for the security’s credit rating, prepayment assumptions and other factors such as credit loss assumptions. Level 1 securities include those traded on an active exchange, such as the New York Stock Exchange, U.S. Treasury securities that are traded by dealers or brokers in active over-the-counter markets and money market funds. Level 2 securities include mortgage-backed securities issued by government sponsored entities, municipal bonds, corporate debt securities and asset-backed securities and are valued based on observable inputs that are observable in the market and can be corroborated by observable market data for substantially the full term of the securities. Securities classified as Level 3 are valued based on estimates obtained from broker-dealers.
	Deferred Compensation Plan Assets and Liabilities
	Included in other assets in the Consolidated Balance Sheet are assets related to employee deferred compensation plans. The assets associated with these plans are invested in mutual funds and classified as Level 1. Deferred compensation liabilities, also classified as Level 1, are carried at the fair value of the obligation to the employee, which mirrors the fair value of the invested assets and is included in other liabilities in the consolidated balance sheet.
	Mortgage Loans Held for Sale
	Mortgage loans held for sale are carried at the lower of cost or market value. The fair value of mortgage loans held for sale is based on what secondary markets are currently offering for portfolios with similar characteristics.
	Loans
	United does not record loans at fair value on a recurring basis. However, from time to time, a loan is considered impaired and an allowance for loan losses is established.  Loans for which it is probable that payment of interest and principal will not be made in accordance with the contractual terms of the loan agreement are considered impaired. Once a loan is identified as individually impaired, management measures impairment based on the present value of expected future cash flows discounted at the loan’s effective interest rate, except that as a practical expedient, a creditor may measure impairment based on a loan’s observable market price, or the fair value of the collateral if repayment of the loan is dependent upon the sale of the underlying collateral.  Those impaired loans not requiring an allowance represent loans for which the fair value of the expected repayments or collateral exceed the recorded investments in such loans. Impaired loans where an allowance is established based on the fair value of collateral require classification in the fair value hierarchy. When the fair value of the collateral is based on an observable market price or a current appraised value, United records the impaired loan as nonrecurring Level 2. When an appraised value is not available or management determines the fair value of the collateral is further impaired below the appraised value and there is no observable market price, United records the impaired loan as nonrecurring Level 3.
	Foreclosed Assets
	Foreclosed assets are adjusted to fair value, less cost to sell, upon transfer of the loans to foreclosed assets. Subsequently, foreclosed assets are carried at the lower of carrying value or fair value. Fair value is based upon independent market prices, appraised values of the collateral or management’s estimation of the value of the collateral. When the fair value of the collateral is based on an observable market price or a current appraised value, United records the foreclosed asset as nonrecurring Level 2. When an appraised value is not available or management determines the fair value of the collateral is further impaired below the appraised value and there is no observable market price, United records the foreclosed asset as nonrecurring Level 3.
	Derivative Financial Instruments
	United uses interest rate swaps and interest rate floors to manage its interest rate risk.  The valuation of these instruments is determined using widely accepted valuation techniques including discounted cash flow analysis on the expected cash flows of each derivative. This analysis reflects the contractual terms of the derivatives, including the period to maturity, and uses observable market-based inputs, including interest rate curves and implied volatilities.  The fair values of interest rate swaps are determined using the market standard methodology of netting the discounted future fixed cash receipts and the discounted expected variable cash payments.  The variable cash payments are based on an expectation of future interest rates (forward curves) derived from observable market interest rate curves.
	The fair values of interest rate options are determined using the market standard methodology of discounting the future expected cash receipts that would occur if variable interest rates fell below the strike rate of the floors.  The variable interest rates used in the calculation of projected receipts on the floor are based on an expectation of future interest rates derived from observable market interest rate curves and volatilities.  To comply with the provisions of ASC 820, United incorporates credit valuation adjustments to appropriately reflect both its own nonperformance risk and the respective counterparty’s nonperformance risk in the fair value measurements.  In adjusting the fair value of its derivative contracts for the effect of nonperformance risk, United has considered the effect of netting and any applicable credit enhancements, such as collateral postings, thresholds, mutual puts, and guarantees.
	Although United has determined that the majority of the inputs used to value its derivatives fall within Level 2 of the fair value hierarchy, the credit valuation adjustments associated with its derivatives utilize Level 3 inputs, such as estimates of current credit spreads to evaluate the likelihood of default by itself and its counterparties.  However, as of September 30, 2014, United had assessed the significance of the effect of the credit valuation adjustments on the overall valuation of its derivative positions and has determined that the credit valuation adjustments are not significant to the overall valuation of its derivatives.  As a result, United has determined that its derivative valuations in their entirety are classified in Level 2 of the fair value hierarchy.
	Assets and Liabilities Measured at Fair Value on a Recurring Basis
	The table below presents United’s assets and liabilities measured at fair value on a recurring basis as of September 30, 2014, December 31, 2013 and September 30, 2013, aggregated by the level in the fair value hierarchy within which those measurements fall (in thousands).
	30-Sep-14	Level 1		Level 2		Level 3			Total
	Assets:
	Securities available for sale:
	U.S. Treasury securities	$	—	$	105,022	$	—		$	105,022
	State and political subdivisions		—		20,321		—			20,321
	Mortgage-backed securities		—		1,034,992		—			1,034,992
	Corporate bonds		—		164,952		300			165,252
	Asset-backed securities		—		462,044		—			462,044
	Other		—		2,036		—			2,036
	Deferred compensation plan assets		3,734		—		—			3,734
	Derivative financial instruments		—		22,221		—			22,221
	Total assets	$	3,734	$	1,811,588	$	300		$	1,815,622
	Liabilities:
	Deferred compensation plan liability	$	3,734	$	—	$	—		$	3,734
	Brokered certificates of deposit		—		175,053		—			175,053
	Derivative financial instruments		—		36,171		—			36,171
	Total liabilities	$	3,734	$	211,224	$	—		$	214,958
	31-Dec-13	Level 1		Level 2		Level 3			Total
	Assets:
	Securities available for sale
	State and political subdivisions	$	—	$	23,242	$	—		$	23,242
	Mortgage-backed securities		—		1,145,347		—			1,145,347
	Corporate bonds		—		249,946		350			250,296
	Asset-backed securities		—		410,633		—			410,633
	Other		—		2,699		—			2,699
	Deferred compensation plan assets		3,496		—		—			3,496
	Derivative financial instruments		—		23,833		—			23,833
	Total assets	$	3,496	$	1,855,700	$	350		$	1,859,546
	Liabilities:
	Deferred compensation plan liability	$	3,496	$	—	$	—		$	3,496
	Brokered certificates of deposit		—		173,657		—			173,657
	Derivative financial instruments		—		46,232		—			46,232
	Total liabilities	$	3,496	$	219,889	$	—		$	223,385
	30-Sep-13	Level 1		Level 2		Level 3			Total
	Assets:
	Securities available for sale:
	State and political subdivisions	$	—	$	23,524	$	—		$	23,524
	Mortgage-backed securities		—		1,383,317		—			1,383,317
	Corporate bonds		—		246,601		350			246,951
	Asset-backed securities		—		307,238		—			307,238
Other		—		2,394		—			2,394
Deferred compensation plan assets		3,203		—		—			3,203
Derivative financial instruments		—		8,092		—			8,092
Total assets	$	3,203	$	1,971,166	$	350		$	1,974,719
Liabilities:
Deferred compensation plan liability	$	3,203	$	—	$	—		$	3,203
Brokered certificates of deposit		—		273,282		—			273,282
Derivative financial instruments		—		37,269		—			37,269
Total liabilities	$	3,203	$	310,551	$	—		$	313,754
The following table shows a reconciliation of the beginning and ending balances for assets measured at fair value on a recurring basis using significant unobservable inputs that are classified as Level 3 values (in thousands).
	Three Months Ended				Nine Months Ended
	September 30,				September 30,
Securities Available for Sale	2014		2013		2014			2013
Balance at beginning of period	$	300	$	350	$	350		$	350
Amounts included in earnings		—		—		—			—
Paydowns / sales		—		—		(50	)		—
Balance at end of period	$	300	$	350	$	300		$	350
At September 30, 2014, United had one security that has a Level 3 valuation.  It is a trust preferred security in a community bank that has shown deteriorating financial condition during the financial crisis, and is currently deferring interest payments.  Since the investment is not actively traded, there is no recent trade activity upon which to assess value.  The value assigned to the investment is based on a sales price estimate from a broker.  The investment has a par amount of $1 million.  The investment is carried at its original cost basis of $1 million with a $700,000 negative mark to fair value through other comprehensive income.  United does not consider this investment to be other-than-temporarily impaired, as the community bank was recapitalized by a private equity investment that management believes will result in full payment at maturity.
United had a second trust preferred security in another community bank that was acquired by United through an acquisition of another financial institution.  The investment was recorded at its par amount of $1 million at the time of the acquisition which was estimated to be its fair value.  During the financial crisis, the community bank discontinued the payment of interest.  United considered the investment to be other than temporarily impaired and recorded a $950,000 impairment charge to write the asset down to its estimated value of $50,000.  In the second quarter of 2014, United sold the investment for $200,000 and recorded a gain from the sale of $150,000.
Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis
United may be required, from time to time, to measure certain assets at fair value on a nonrecurring basis.  These include assets that are measured at the lower of cost or market that were recognized at fair value below cost at the end of the period.  The table below presents United’s assets and liabilities measured at fair value on a nonrecurring basis as of September 30, 2014, December 31, 2013 and September 30, 2013, aggregated by the level in the fair value hierarchy within which those measurements fall (in thousands).
30-Sep-14	Level 1		Level 2		Level 3			Total
Assets
Loans	$	—	$	—	$	85,827		$	85,827
Foreclosed properties		—		—		2,204			2,204
Total	$	—	$	—	$	88,031		$	88,031
31-Dec-13
Assets
Loans	$	—	$	—	$	82,798		$	82,798
Foreclosed properties		—		—		3,747			3,747
Total	$	—	$	—	$	86,545		$	86,545
30-Sep-13
Assets
Loans	$	—	$	—	$	76,393		$	76,393
Foreclosed properties		—		—		3,898			3,898
Total	$	—	$	—	$	80,291		$	80,291
Loans that are reported above as being measured at fair value on a non-recurring basis are generally impaired loans that have either been partially charged off or have specific reserves assigned to them.  Nonaccrual impaired loans that are collateral dependent are generally written down to 80% of appraised value which considers the estimated costs to sell.  Specific reserves are established for impaired loans based on appraised value of collateral or discounted cash flows.  Foreclosed properties that are included above as measured at fair value on a nonrecurring basis are those properties that resulted from a loan that had been charged down or have been written down subsequent to foreclosure.  Foreclosed properties are generally recorded at the lower of 80% of appraised value or 90% of the asking price which considers the estimated cost to sell.
Assets and Liabilities Not Measured at Fair Value
For financial instruments that have quoted market prices, those quotes are used to determine fair value.  Financial instruments that have no defined maturity, have a remaining maturity of 180 days or less, or reprice frequently to a market rate, are assumed to have a fair value that approximates the reported book value, after taking into consideration any applicable credit risk.  If no market quotes are available, financial instruments are valued by discounting the expected cash flows using an estimated current market interest rate for the financial instrument.  For off-balance sheet derivative instruments, fair value is estimated as the amount that United would receive or pay to terminate the contracts at the reporting date, taking into account the current unrealized gains or losses on open contracts.
The short maturity of United’s assets and liabilities results in having a significant number of financial instruments whose fair value equals or closely approximates carrying value.  Such financial instruments are reported in the following balance sheet captions: cash and cash equivalents, mortgage loans held for sale and short-term borrowings.  The fair value of securities available-for-sale equals the balance sheet value.  Due to the short-term settlement of accrued interest receivable and payable, the carrying amount closely approximates fair value.
Fair value estimates are made at a specific point in time, based on relevant market information and information about the financial instrument.  These estimates do not reflect the premium or discount on any particular financial instrument that could result from the sale of United’s entire holdings.  Because no ready market exists for a significant portion of United’s financial instruments, fair value estimates are based on many judgments.  These estimates are subjective in nature and involve uncertainties and matters of significant judgment and therefore cannot be determined with precision.  Changes in assumptions could significantly affect the estimates.
Fair value estimates are based on existing on and off-balance sheet financial instruments without attempting to estimate the value of anticipated future business and the value of assets and liabilities that are not considered financial instruments.  Significant assets and liabilities that are not considered financial instruments include the mortgage banking operation, brokerage network, deferred income taxes, premises and equipment and goodwill.  In addition, the tax ramifications related to the realization of the unrealized gains and losses can have a significant effect on fair value estimates and have not been considered in the estimates.
Off-balance sheet financial instruments (commitments to extend credit and standby letters of credit) are generally short-term and at variable rates.  Therefore, both the carrying amount and the estimated fair value associated with these instruments are immaterial.
The carrying amount and fair values for other financial instruments that are not measured at fair value on a recurring basis in United’s balance sheet at September 30, 2014, December 31, 2013, and September 30, 2013 are as follows (in thousands).
	Carrying		Fair Value Level
30-Sep-14	Amount		Level 1		Level 2			Level 3		Total
Assets:
Securities held to maturity	$	432,418	$	—	$	440,311		$	—	$	440,311
Loans, net		4,496,958		—		—			4,437,039		4,437,039
Mortgage loans held for sale		20,004		—		20,253			—		20,253
Liabilities:
Deposits		6,240,729		—		6,228,804			—		6,228,804
Federal Home Loan Bank advances		330,125		—		330,134			—		330,134
Long-term debt		129,865		—		—			132,636		132,636
31-Dec-13
Assets:
Securities held to maturity		479,742		—		485,585			—		485,585
Loans, net		4,252,504		—		—			4,165,591		4,165,591
Mortgage loans held for sale		10,319		—		10,529			—		10,529
Liabilities:
Deposits		6,201,505		—		6,204,815			—		6,204,815
Federal Home Loan Bank advances		120,125		—		120,125			—		120,125
Long-term debt		129,865		—		—			130,262		130,262
30-Sep-13
Assets:
Securities held to maturity		205,613		—		214,651			—		214,651
Loans, net		4,186,695		—		—			4,095,666		4,095,666
Mortgage loans held for sale		11,987		—		11,979			—		11,979
Liabilities:
Deposits		6,112,907		—		6,117,769			—		6,117,769
Federal Home Loan Bank advances		125		—		125			—		125
Long-term debt		129,865		—		—			129,197		129,197

Commitments_and_Contingencies

Commitments and Contingencies	9 Months Ended
	Sep. 30, 2014
Commitments and Contingencies Disclosure [Abstract]	'
Commitments and Contingencies	'
	Note 15 – Commitments and Contingencies
	United and the Bank are parties to financial instruments with off-balance sheet risk in the normal course of business to meet the financing needs of their customers. These financial instruments include commitments to extend credit and letters of credit. These instruments involve, to varying degrees, elements of credit risk in excess of the amount recognized in the balance sheet. The contract amounts of these instruments reflect the extent of involvement the Bank has in particular classes of financial instruments.  The exposure to credit loss in the event of nonperformance by the other party to the financial instrument for commitments to extend credit and letters of credit written is represented by the contractual amount of these instruments. United uses the same credit policies in making commitments and conditional obligations as it uses for underwriting on-balance sheet instruments. In most cases, collateral or other security is required to support financial instruments with credit risk.
	The following table summarizes, as of September 30, 2014, December 31, 2013 and September 30, 2013, the contractual amount of off-balance sheet instruments (in thousands):
		30-Sep-14		31-Dec-13		30-Sep-13
	Financial instruments whose contract amounts represent credit risk:
	Commitments to extend credit	$	852,635	$	747,170	$	677,891
	Letters of credit		20,534		19,846		9,818
	United, in the normal course of business, is subject to various pending and threatened lawsuits in which claims for monetary damages are asserted.  Although it is not possible to predict the outcome of these lawsuits, or the range of any possible loss, management, after consultation with legal counsel, does not anticipate that the ultimate aggregate liability, if any, arising from these lawsuits will have a material adverse effect on United’s financial position or results of operations.

Accounting_Policies_Policies

Accounting Policies (Policies)	9 Months Ended
	Sep. 30, 2014
Summary Of Significant Accounting Policies [Abstract]	'
Reclassifications	'
	Reclassifications
	Certain 2013 amounts have been reclassified to conform to the 2014 presentation.  During the fourth quarter of 2013, United reclassified hedge ineffectiveness gains and losses from other fee revenue to net interest revenue.  The impact of the reclassification has been reflected in all periods and was not material to any period.

Balance_Sheet_Offsetting_Table

Balance Sheet Offsetting (Tables)	9 Months Ended
	Sep. 30, 2014
Offsetting [Abstract]	'
Schedule of summary of amounts outstanding under reverse repurchase agreements and derivative financial instruments	'
					Gross
		Gross			Amounts						Gross Amounts not Offset
		Amounts of			Offset on the						in the Balance Sheet
		Recognized			Balance			Net Asset			Financial				Collateral
	30-Sep-14	Assets			Sheet			Balance			Instruments				Received			Net Amount
	Repurchase agreements / reverse repurchase agreements	$	392,000		$	(375,000	)		$	17,000		$	—		$	(17,985	)		$	—
	Derivatives		22,221			—				22,221			(2,093	)		(3,427	)			16,701
	Total	$	414,221		$	(375,000	)		$	39,221		$	(2,093	)	$	(21,412	)		$	16,701
	Weighted average interest rate of reverse repurchase agreements		1.16	%
					Gross
		Gross			Amounts						Gross Amounts not Offset
		Amounts of			Offset on the			Net			in the Balance Sheet
		Recognized			Balance			Liability			Financial				Collateral
		Liabilities			Sheet			Balance			Instruments				Pledged			Net Amount
	Repurchase agreements / reverse repurchase agreements	$	375,000		$	(375,000	)		$	—		$	—		$	—			$	—
	Derivatives		36,171			—				36,171			(2,093	)		(38,195	)			—
	Total	$	411,171		$	(375,000	)		$	36,171		$	(2,093	)	$	(38,195	)		$	—
	Weighted average interest rate of repurchase agreements		0.31	%
					Gross
		Gross			Amounts						Gross Amounts not Offset
		Amounts of			Offset on the						in the Balance Sheet
		Recognized			Balance				Net Asset		Financial				Collateral
	31-Dec-13	Assets			Sheet				Balance		Instruments				Received			Net Amount
	Repurchase agreements / reverse repurchase agreements	$	385,000		$	(350,000	)		$	35,000		$	—		$	(38,982	)		$	—
	Derivatives		23,833			—				23,833			(4,378	)		(2,912	)			16,543
	Total	$	408,833		$	(350,000	)		$	58,833		$	(4,378	)	$	(41,894	)		$	16,543
	Weighted average interest rate of reverse repurchase agreements		1.09	%
					Gross
		Gross			Amounts						Gross Amounts not Offset
		Amounts of			Offset on the				Net		in the Balance Sheet
		Recognized			Balance				Liability		Financial				Collateral
		Liabilities			Sheet				Balance		Instruments				Pledged			Net Amount
	Repurchase agreements / reverse repurchase agreements	$	350,000		$	(350,000	)		$	—		$	—		$	—			$	—
	Derivatives		46,232			—				46,232			(4,378	)		(38,145	)			3,709
	Total	$	396,232		$	(350,000	)		$	46,232		$	(4,378	)	$	(38,145	)		$	3,709
	Weighted average interest rate of repurchase agreements		0.27	%
					Gross
		Gross			Amounts						Gross Amounts not Offset
		Amounts of			Offset on the						in the Balance Sheet
		Recognized			Balance				Net Asset		Financial				Collateral
	September 30, 2013 - Revised	Assets			Sheet				Balance		Instruments(1)				Received(2)			Net Amount
	Repurchase agreements / reverse repurchase agreements	$	405,000		$	(350,000	)		$	55,000		$	—		$	(59,685	)		$	—
	Derivatives		8,092			—				8,092			(3,765	)		(2,205	)			2,122
	Total	$	413,092		$	(350,000	)		$	63,092		$	(3,765	)	$	(61,890	)		$	2,122
	Weighted average interest rate of reverse repurchase agreements		1.13	%
					Gross
		Gross			Amounts						Gross Amounts not Offset
		Amounts of			Offset on the				Net		in the Balance Sheet
		Recognized			Balance				Liability		Financial				Collateral
		Liabilities			Sheet				Balance		Instruments(1)				Pledged(2)			Net Amount
	Repurchase agreements / reverse repurchase agreements	$	350,000		$	(350,000	)		$	—		$	—		$	—			$	—
	Derivatives		37,269			—				37,269			(3,765	)		(29,011	)			4,493
	Total	$	387,269		$	(350,000	)		$	37,269		$	(3,765	)	$	(29,011	)		$	4,493
	Weighted average interest rate of repurchase agreements		0.28	%
	(1)  United's original filings for the third, second and first quarters of 2013 contained an error and did not include amounts available for offset under master netting agreements for derivative financial instruments. Those amounts were $3.77 million, $4.30 million and $57,000, respectively, for the third, second and first quarters of 2013 and have been added to the balance sheet offsetting table for each respective period. United considers these revisions to be immaterial to the presentation of the financial statements for those quarters.
	(2)  United's original filings for the third, second and first quarters of 2013 contained an error and did not include amounts pledged by counterparties as collateral on reverse repurchase agreement positions. Those amounts were $59.7 million, $53.7 million and $87.5 million, respectively, for the third, second and first quarters of 2013 and have been added to the balance sheet offsetting table for each respective period in the current year presentation. In addition, in the original filings for the third and second quarters of 2013, the amounts reported by United as collateral pledged on derivative financial positions were reported net of collateral received on asset derivative positions. The amounts for those periods have been reported separately as collateral received and collateral pledged in the current year presentation. Additionally, upon further analysis, United updated collateral balances for the third quarter 2013 resulting in a net increase in the collateral pledged position of $1.23 million. United considers these revisions to be immaterial to the presentation of the financial statements for those quarters.

Securities_Tables

Securities (Tables)	9 Months Ended
	Sep. 30, 2014
Investment Securities [Abstract]	'
Schedule of cost basis, gross unrealized gains and losses and fair value of securities held to maturity	'
				Gross		Gross
		Amortized		Unrealized		Unrealized			Fair
	As of September 30, 2014	Cost		Gains		Losses			Value
	State and political subdivisions	$	50,248	$	3,849	$	—		$	54,097
	Mortgage-backed securities (1)		382,170		7,299		3,255			386,214
	Total	$	432,418	$	11,148	$	3,255		$	440,311
	As of December 31, 2013
	State and political subdivisions	$	51,733	$	2,718	$	42		$	54,409
	Mortgage-backed securities (1)		428,009		6,690		3,523			431,176
	Total	$	479,742	$	9,408	$	3,565		$	485,585
	As of September 30, 2013
	State and political subdivisions	$	51,745	$	2,723	$	53		$	54,415
	Mortgage-backed securities (1)		153,868		6,767		399			160,236
	Total	$	205,613	$	9,490	$	452		$	214,651
	(1)    All are residential type mortgage-backed securities
Schedule of held to maturity securities in an unrealized loss position	'
		Less than 12 Months				12 Months or More					Total
				Unrealized					Unrealized				Unrealized
	As of September 30, 2014	Fair Value		Loss		Fair Value			Loss		Fair Value		Loss
	Mortgage-backed securities	$	189,223	$	3,147	$	2,798		$	108	$	192,021	$	3,255
	Total unrealized loss position	$	189,223	$	3,147	$	2,798		$	108	$	192,021	$	3,255
	As of December 31, 2013
	State and political subdivisions	$	1,595	$	42	$	—		$	—	$	1,595	$	42
	Mortgage-backed securities		259,870		3,523		—			—		259,870		3,523
	Total unrealized loss position	$	261,465	$	3,565	$	—		$	—	$	261,465	$	3,565
	As of September 30, 2013
	State and political subdivisions	$	4,825	$	53	$	—		$	—	$	4,825	$	53
	Mortgage-backed securities		8,009		399		—			—		8,009		399
	Total unrealized loss position	$	12,834	$	452	$	—		$	—	$	12,834	$	452
Schedule of cost basis, unrealized gains and losses, and fair value of securities available for sale	'
				Gross		Gross
		Amortized		Unrealized		Unrealized			Fair
	As of September 30, 2014	Cost		Gains		Losses			Value
	U.S. Treasury securities	$	105,385	$	245	$	608		$	105,022
	State and political subdivisions		19,686		666		31			20,321
	Mortgage-backed securities (1)		1,029,881		15,010		9,899			1,034,992
	Corporate bonds		165,558		1,427		1,733			165,252
	Asset-backed securities		458,569		3,629		154			462,044
	Other		2,036		—		—			2,036
	Total	$	1,781,115	$	20,977	$	12,425		$	1,789,667
	As of December 31, 2013
	State and political subdivisions	$	22,558	$	823	$	139		$	23,242
	Mortgage-backed securities (1)		1,145,800		13,296		13,749			1,145,347
	Corporate bonds		255,316		1,304		6,324			250,296
	Asset-backed securities		409,086		2,535		988			410,633
	Other		2,699		—		—			2,699
	Total	$	1,835,459	$	17,958	$	21,200		$	1,832,217
	As of September 30, 2013
	State and political subdivisions	$	22,781	$	893	$	150		$	23,524
	Mortgage-backed securities (1)		1,390,280		14,469		21,432			1,383,317
	Corporate bonds		255,391		936		9,376			246,951
	Asset-backed securities		306,961		1,836		1,559			307,238
	Other		2,394		—		—			2,394
	Total	$	1,977,807	$	18,134	$	32,517		$	1,963,424
	(1)    All are residential type mortgage-backed securities
Schedule of available for sale securities in an unrealized loss position	'
		Less than 12 Months				12 Months or More					Total
				Unrealized					Unrealized				Unrealized
	As of September 30, 2014	Fair Value		Loss		Fair Value			Loss		Fair Value		Loss
	U.S. Treasury securities	$	104,777	$	608	$	—		$	—	$	104,777	$	608
	State and political subdivisions		—		—		3,638			31		3,638		31
	Mortgage-backed securities		126,445		844		265,426			9,055		391,871		9,899
	Corporate bonds		49,547		414		34,657			1,319		84,204		1,733
	Asset-backed securities		57,716		137		9,952			17		67,668		154
	Total unrealized loss position	$	338,485	$	2,003	$	313,673		$	10,422	$	652,158	$	12,425
	As of December 31, 2013
	State and political subdivisions	$	4,539	$	139	$	—		$	—	$	4,539	$	139
	Mortgage-backed securities		334,996		6,480		175,865			7,269		510,861		13,749
	Corporate bonds		137,318		4,494		54,130			1,830		191,448		6,324
	Asset-backed securities		164,933		722		22,370			266		187,303		988
	Total unrealized loss position	$	641,786	$	11,835	$	252,365		$	9,365	$	894,151	$	21,200
		Less than 12 Months				12 Months or More					Total
				Unrealized					Unrealized				Unrealized
	As of September 30, 2013	Fair Value		Loss		Fair Value			Loss		Fair Value		Loss
	State and political subdivisions	$	4,533	$	148	$	10		$	2	$	4,543	$	150
	Mortgage-backed securities		533,681		17,958		100,534			3,474		634,215		21,432
	Corporate bonds		115,511		6,463		53,042			2,913		168,553		9,376
	Asset-backed securities		79,015		869		56,181			690		135,196		1,559
	Total unrealized loss position	$	732,740	$	25,438	$	209,767		$	7,079	$	942,507	$	32,517
Schedule of amortized cost and fair value of available for sale and held to maturity securities by contractual maturity	'
		Available-for-Sale				Held-to-Maturity
		Amortized Cost		Fair Value		Amortized Cost			Fair Value
	U.S. Treasury Securities:
	1 to 5 years	$	86,203	$	85,841	$	—		$	—
	5 to 10 years		19,182		19,181		—			—
			105,385		105,022		—			—
	State and political subdivisions:
	Within 1 year		6,330		6,427		1,000			1,023
	1 to 5 years		10,414		10,863		18,595			19,949
	5 to 10 years		2,094		2,130		20,161			21,726
	More than 10 years		848		901		10,492			11,399
			19,686		20,321		50,248			54,097
	Corporate bonds:
	1 to 5 years		48,756		48,189		—			—
	5 to 10 years		115,802		116,763		—			—
	More than 10 years		1,000		300		—			—
			165,558		165,252		—			—
	Asset-backed securities:
	Within 1 year		9,993		10,007		—			—
	1 to 5 years		86,608		87,916		—			—
	5 to 10 years		242,393		244,069		—			—
	More than 10 years		119,575		120,052		—			—
			458,569		462,044		—			—
	Other:
	More than 10 years		2,036		2,036		—			—
			2,036		2,036		—			—
	Total securities other than mortgage-backed securities:
	Within 1 year		16,323		16,434		1,000			1,023
	1 to 5 years		231,981		232,809		18,595			19,949
	5 to 10 years		379,471		382,143		20,161			21,726
	More than 10 years		123,459		123,289		10,492			11,399
	Mortgage-backed securities		1,029,881		1,034,992		382,170			386,214
		$	1,781,115	$	1,789,667	$	432,418		$	440,311
Schedule of summary of securities sales activities	'
		Three Months Ended				Nine Months Ended
		September 30,				September 30,
		2014		2013		2014			2013
	Proceeds from sales	$	13,290	$	5,000	$	403,517		$	20,751
	Gross gains on sales	$	11	$	—	$	5,795		$	116
	Gross losses on sales		—		—		(1,132	)		—
	Net gains on sales of securities	$	11	$	—	$	4,663		$	116
	Income tax expense attributable to sales	$	4	$	—	$	1,821		$	45

Loans_and_Allowance_for_Loan_L1

Loans and Allowance for Loan Losses (Tables)	9 Months Ended
	Sep. 30, 2014
Loans and Allowance For Loan Losses [Abstract]	'
Schedule of major classifications of loans	'
			September 30,				December 31,				September 30,
			2014				2013				2013
	Owner occupied commercial real estate		$	1,153,933			$	1,133,543			$	1,129,152
	Income producing ommercial real estate			604,727				623,167				613,619
	Commercial & industrial			649,853				471,961				457,414
	Commercial construction			180,794				148,903				137,146
	Total commercial			2,589,307				2,377,574				2,337,331
	Residential mortgage			865,568				875,077				888,679
	Home equity lines of credit			458,819				440,887				420,616
	Residential construction			307,178				328,579				317,789
	Consumer installment			105,345				111,045				116,535
	Indirect auto			242,669				196,104				186,117
	Total loans			4,568,886				4,329,266				4,267,067
	Less allowance for loan losses			(71,928	)			(76,762	)			(80,372	)
	Loans, net		$	4,496,958			$	4,252,504			$	4,186,695
Schedule of balance and activity in the allowance for credit losses by portfolio segment	'
			2014
															Allocation
			Beginning				Charge-								of								Ending
	Three Months Ended September 30,		Balance				Offs				Recoveries				Unallocated				Provision				Balance
	Owner occupied commercial real estate		$	17,804			$	(832	)		$	86			$	—				(1,758	)		$	15,300
	Income producing commercial real estate			11,761				(598	)			494				—				(866	)			10,791
	Commercial & industrial			3,885				-30				372				—				(1,009	)			3,218
	Commercial construction			4,067				(104	)			1				—				1,686				5,650
	Residential mortgage			16,763				-1,357				240				—				1,940				17,586
	Home equity lines of credit			6,338				(405	)			50				—				(1,144	)			4,839
	Residential construction			11,208				(753	)			41				—				2,358				12,854
	Consumer installment			599				(449	)			256				—				333				739
	Indirect auto			823				(178	)			11				—				295				951
	Unallocated			—				—				—				—				—				—
	Total allowance for loan losses			73,248				(4,706	)			1,551				—				1,835				71,928
	Allowance for unfunded commitments			2,165				—				—				—				165				2,330
	Total allowance for credit losses		$	75,413			$	(4,706	)		$	1,551			$	—			$	2,000			$	74,258
															Allocation
			Beginning				Charge-								of								Ending
	Nine Months Ended September 30,		Balance				Offs				Recoveries				Unallocated				Provision				Balance
	Owner occupied commercial real estate		$	17,164			$	(2,116	)		$	2,929			$	1,278			$	(3,955	)		$	15,300
	Income producing commercial real estate			7,174				(1,435	)			691				688				3,673				10,791
	Commercial & industrial			6,527				(2,005	)			1,263				318				(2,885	)			3,218
	Commercial construction			3,669				(236	)			1				388				1,828				5,650
	Residential mortgage			15,446				(5,738	)			597				1,452				5,829				17,586
	Home equity lines of credit			5,528				(2,032	)			218				391				734				4,839
	Residential construction			12,532				(3,004	)			410				1,728				1,188				12,854
	Consumer installment			1,353				(1,580	)			974				—				(8	)			739
	Indirect auto			1,126				(344	)			38				—				131				951
	Unallocated			6,243				—				—				(6,243	)			—				—
	Total allowance for loan losses			76,762				(18,490	)			7,121				—				6,535				71,928
	Allowance for unfunded commitments			2,165				—				—				—				165				2,330
	Total allowance for credit losses		$	78,927			$	(18,490	)		$	7,121			$	—			$	6,700			$	74,258
			2013
		Beginning					Charge-												Ending
	Three Months Ended September 30,		Balance				Offs			Recoveries				Provision					Balance
	Owner occupied commercial real estate		$	15,785			$	(1,712	)		$	71			$	(78	)		$	14,066
	Income producing commercial real estate			7,023				(216	)			—				3,262				10,069
	Commercial & industrial			8,054				(826	)			690				14				7,932
	Commercial construction			4,275				(134	)			1				(324	)			3,818
	Residential mortgage			14,498				(918	)			229				1,335				15,144
	Home equity lines of credit			5,529				(388	)			2				415				5,558
	Residential construction			17,322				(1,096	)			24				(1,908	)			14,342
	Consumer installment			1,515				(345	)			210				(31	)			1,349
	Indirect auto			875				(74	)			9				258				1,068
	Unallocated			6,969				—				—				57				7,026
	Total allowance for loan losses			81,845				(5,709	)			1,236				3,000				80,372
	Allowance for unfunded commitments			—				—				—				—				—
	Total allowance for credit losses		$	81,845			$	(5,709	)		$	1,236			$	3,000			$	80,372
		Beginning					Charge-												Ending
	Nine Months Ended September 30,		Balance				Offs			Recoveries				Provision					Balance
	Owner occupied commercial real estate		$	17,265			$	(23,444	)		$	1,296			$	18,949			$	14,066
	Income producing commercial real estate			10,582				(10,678	)			260				9,905				10,069
	Commercial & industrial			5,537				(18,581	)			1,368				19,608				7,932
	Commercial construction			8,389				(6,484	)			60				1,853				3,818
	Residential mortgage			19,117				(8,272	)			479				3,820				15,144
	Home equity lines of credit			7,525				(2,108	)			170				(29	)			5,558
	Residential construction			26,662				(22,608	)			57				10,231				14,342
	Consumer installment			2,527				(1,521	)			891				(548	)			1,349
	Indirect auto			220				(170	)			20				998				1,068
	Unallocated			9,313				—				—				(2,287	)			7,026
	Total allowance for loan losses			107,137				(93,866	)			4,601				62,500				80,372
	Allowance for unfunded commitments			—				—				—				—				—
Total allowance for credit losses		$	107,137			$	(93,866	)		$	4,601			$	62,500			$	80,372
		30-Sep-14												31-Dec-13											30-Sep-13
		Individually				Collectively								Individually				Collectively							Individually			Collectively
		Evaluated for				Evaluated for				Ending				Evaluated for				Evaluated for				Ending			Evaluated for			Evaluated for			Ending
Allowance for Loan Losses		Impairment				Impairment				Balance				Impairment				Impairment				Balance			Impairment			Impairment			Balance
Owner occupied commercial real estate		$	2,125			$	13,175			$	15,300			$	1,023			$	16,141			$	17,164		$	770		$	13,296		$	14,066
Income producing commercial real estate			2,380				8,411				10,791				990				6,184				7,174			1,205			8,864			10,069
Commercial & industrial			26				3,192				3,218				66				6,461				6,527			546			7,386			7,932
Commercial construction			1,164				4,486				5,650				112				3,557				3,669			150			3,668			3,818
Residential mortgage			3,501				14,085				17,586				2,914				12,532				15,446			2,008			13,136			15,144
Home equity lines of credit			51				4,788				4,839				5				5,523				5,528			—			5,558			5,558
Residential construction			1,037				11,817				12,854				688				11,844				12,532			662			13,680			14,342
Consumer installment			23				716				739				224				1,129				1,353			11			1,338			1,349
Indirect auto			—				951				951				—				1,126				1,126			—			1,068			1,068
Unallocated			—				—				—				—				6,243				6,243			—			7,026			7,026
Total allowance for loan losses			10,307				61,621				71,928				6,022				70,740				76,762			5,352			75,020			80,372
Allowance for unfunded commitments			—				2,330				2,330				—				2,165				2,165			—			—			—
Total allowance for credit losses		$	10,307			$	63,951			$	74,258			$	6,022			$	72,905			$	78,927		$	5,352		$	75,020		$	80,372
Loans Outstanding
Owner occupied commercial real estate		$	33,635			$	1,120,298			$	1,153,933			$	32,969			$	1,100,574			$	1,133,543		$	31,138		$	1,098,014		$	1,129,152
Income producing commercial real estate			26,120				578,607				604,727				27,239				595,928				623,167			23,325			590,294			613,619
Commercial & industrial			4,540				645,313				649,853				4,217				467,744				471,961			4,105			453,309			457,414
Commercial construction			12,127				168,667				180,794				13,715				135,188				148,903			13,478			123,668			137,146
Residential mortgage			18,778				846,790				865,568				20,167				854,910				875,077			18,970			869,709			888,679
Home equity lines of credit			531				458,288				458,819				505				440,382				440,887			—			420,616			420,616
Residential construction			13,055				294,123				307,178				14,808				313,771				328,579			14,121			303,668			317,789
Consumer installment			245				105,100				105,345				999				110,046				111,045			204			116,331			116,535
Indirect auto			—				242,669				242,669				—				196,104				196,104			—			186,117			186,117
Total loans		$	109,031			$	4,459,855			$	4,568,886			$	114,619			$	4,214,647			$	4,329,266		$	105,341		$	4,161,726		$	4,267,067
Schedule of recorded investments in individually evaluated impaired loans	'
			30-Sep-14												31-Dec-13											30-Sep-13
											Allowance												Allowance									Allowance
			Unpaid								for Loan				Unpaid								for Loan			Unpaid						for Loan
			Principal				Recorded				Losses				Principal				Recorded				Losses			Principal			Recorded			Losses
			Balance				Investment				Allocated				Balance				Investment				Allocated			Balance			Investment			Allocated
	With no related allowance recorded:
	Owner occupied commercial real estate		$	11,370			$	10,370			$	—			$	17,717			$	14,458			$	—		$	18,423		$	15,059		$	—
	Income producing commercial real estate			9,872				9,872								12,644				9,747				—			6,643			5,325			—
	Commercial & industrial			2,178				1,560				—				2,252				2,252				—			235			235			—
	Commercial construction			—				—				—				974				974				—			1,127			1,127			—
	Total commercial			23,420				21,802				—				33,587				27,431				—			26,428			21,746			—
	Residential mortgage			1,319				954				—				4,496				3,634				—			4,768			3,729			—
	Home equity lines of credit			—				—				—				—				—				—			—			—			—
	Residential construction			5,460				4,172				—				9,462				7,807				—			9,101			7,364			—
	Consumer installment			—				—				—				—				—				—			—			—			—
	Indirect auto			—				—				—				—				—				—			—			—			—
	Total with no related allowance recorded			30,199				26,928				—				47,545				38,872				—			40,297			32,839			—
	With an allowance recorded:
	Owner occupied commercial real estate			24,828				23,265				2,125				18,595				18,513				1,023			16,163			16,079			770
	Income producing commercial real estate			16,797				16,248				2,380				17,490				17,490				990			20,020			18,000			1,205
	Commercial & industrial			2,980				2,980				26				2,248				1,965				66			4,002			3,870			546
	Commercial construction			12,281				12,127				1,164				12,821				12,741				112			12,430			12,351			150
	Total commercial			56,886				54,620				5,695				51,154				50,709				2,191			52,615			50,300			2,671
	Residential mortgage			18,657				17,824				3,501				17,119				16,533				2,914			15,598			15,241			2,008
	Home equity lines of credit			531				531				51				505				505				5			—			—			—
	Residential construction			9,427				8,883				1,037				8,469				7,001				688			7,257			6,757			662
	Consumer installment			245				245				23				999				999				224			214			204			11
	Indirect auto			—				—				—				—				—				—			—			—			—
	Total with an allowance recorded			85,746				82,103				10,307				78,246				75,747				6,022			75,684			72,502			5,352
	Total		$	115,945			$	109,031			$	10,307			$	125,791			$	114,619			$	6,022		$	115,981		$	105,341		$	5,352
Schedule of average balances of impaired loans and income recognized on impaired loans	'
			2014												2013
							Interest												Interest
							Revenue				Cash Basis								Revenue				Cash Basis
							Recognized				Interest								Recognized				Interest
			Average				During				Revenue				Average				During				Revenue
	Three Months Ended September 30,		Balance				Impairment				Received				Balance				Impairment				Received
	Owner occupied commercial real estate		$	33,715			$	430			$	448			$	31,695			$	737			$	861
	Income producing commercial real estate			26,622				325				341				23,608				599				600
	Commercial & industrial			4,698				43				85				4,189				114				104
	Commercial construction			12,203				119				96				13,501				244				246
	Total commercial			77,238				917				970				72,993				1,694				1,811
	Residential mortgage			19,235				215				215				18,548				425				435
	Home equity lines of credit			538				6				5				522				11				11
	Residential construction			13,146				130				130				14,136				346				307
	Consumer installment			251				4				5				214				7				7
	Indirect auto			—				—				—				—				—				—
	Total		$	110,408			$	1,272			$	1,325			$	106,413			$	2,483			$	2,571
	Nine Months Ended September 30,
	Owner occupied commercial real estate		$	31,460			$	1,191			$	1,219			$	37,732			$	1,836			$	2,049
	Income producing commercial real estate			26,299				953				991				38,328				1,077				1,077
	Commercial & industrial			4,314				135				186				8,821				333				803
	Commercial construction			12,086				335				338				14,620				509				593
	Total commercial			74,159				2,614				2,734				99,501				3,755				4,522
	Residential mortgage			20,384				672				670				19,382				860				841
	Home equity lines of credit			531				16				17				524				22				21
	Residential construction			13,315				452				455				14,219				850				882
	Consumer installment			345				16				19				228				17				17
	Indirect auto			—				—				—				—				—				—
	Total		$	108,734			$	3,770			$	3,895			$	133,854			$	5,504			$	6,283
Schedule of aging of the recorded investment in past due loans	'
			Loans Past Due																Loans Not
	As of September 30, 2014		30 - 59 Days				60 - 89 Days				> 90 Days				Total				Past Due				Total
	Owner occupied commercial real estate		$	2,769			$	257			$	947			$	3,973			$	1,149,960			$	1,153,933
	Income producing commercial real estate			417				991			$	226				1,634				603,093				604,727
	Commercial & industrial			900				103				861				1,864				647,989				649,853
	Commercial construction			123				182				—				305				180,489				180,794
	Total commercial			4,209				1,533				2,034				7,776				2,581,531				2,589,307
	Residential mortgage			6,985				3,136				2,563				12,684				852,884				865,568
	Home equity lines of credit			1,566				373				375				2,314				456,505				458,819
	Residential construction			1,262				329				2,803				4,394				302,784				307,178
	Consumer installment			995				322				191				1,508				103,837				105,345
	Indirect auto			278				83				200				561				242,108				242,669
	Total loans		$	15,295			$	5,776			$	8,166			$	29,237			$	4,539,649			$	4,568,886
	As of December 31, 2013
	Owner occupied commercial real estate		$	1,845			$	705			$	2,017			$	4,567			$	1,128,976			$	1,133,543
	Income producing commercial real estate			3,879				2,092				530				6,501				616,666				623,167
	Commercial & industrial			2,349				223				88				2,660				469,301				471,961
	Commercial construction			94				190				235				519				148,384				148,903
	Total commercial			8,167				3,210				2,870				14,247				2,363,327				2,377,574
	Residential mortgage			9,011				2,832				4,140				15,983				859,094				875,077
	Home equity lines of credit			2,056				430				941				3,427				437,460				440,887
	Residential construction			1,335				588				1,375				3,298				325,281				328,579
	Consumer installment			1,058				358				24				1,440				109,605				111,045
	Indirect auto			185				65				42				292				195,812				196,104
	Total loans		$	21,812			$	7,483			$	9,392			$	38,687			$	4,290,579			$	4,329,266
	As of September 30, 2013
	Owner occupied commercial real estate		$	1,332			$	910			$	1,896			$	4,138			$	1,125,014			$	1,129,152
	Income producing commercial real estate			694				373				533				1,600				612,019				613,619
	Commercial & industrial			763				191				93				1,047				456,367				457,414
	Commercial construction			16				—				235				251				136,895				137,146
	Total commercial			2,805				1,474				2,757				7,036				2,330,295				2,337,331
	Residential mortgage			7,672				2,467				4,279				14,418				874,261				888,679
	Home equity lines of credit			1,177				610				373				2,160				418,456				420,616
	Residential construction			3,705				418				924				5,047				312,742				317,789
	Consumer installment			633				19				94				746				115,789				116,535
	Indirect auto			220				84				55				359				185,758				186,117
	Total loans		$	16,212			$	5,072			$	8,482			$	29,766			$	4,237,301			$	4,267,067
Schedule of TDRs including the number of loan contracts restructured and the pre- and post-modification recorded investment	'
			30-Sep-14												31-Dec-13											30-Sep-13
							Pre-				Post-								Pre-				Post-						Pre-			Post-
						Modification				Modification								Modification				Modification						Modification			Modification
			Number			Outstanding				Outstanding					Number			Outstanding				Outstanding				Number		Outstanding			Outstanding
			of			Recorded				Recorded					of			Recorded				Recorded				of		Recorded			Recorded
			Contracts			Investment				Investment					Contracts			Investment				Investment				Contracts		Investment			Investment
	Owner occupied commercial real estate			52			$	27,811			$	26,248				45			$	24,064			$	22,399			45		$	25,829		$	24,368
	Income producing commercial real estate			32				19,652				19,104				32				20,900				18,268			32			22,134			18,795
	Commercial & industrial			33				2,941				2,941				36				3,527				3,245			34			3,051			2,919
	Commercial construction			14				11,238				11,084				13				13,122				13,042			12			12,904			12,825
	Total commercial			131				61,642				59,377				126				61,613				56,954			123			63,918			58,907
	Residential mortgage			160				19,555				18,356				133				20,117				18,852			115			18,511			17,408
	Home equity lines of credit			4				531				531				3				505				505			5			521			521
	Residential construction			50				10,916				10,084				57				12,459				10,452			55			12,360			10,290
	Consumer installment			20				245				245				26				203				203			36			214			204
	Indirect auto			—				—				—				—				—				—			—			—			—
	Total loans			365				92,889				88,593				345				94,897			$	86,966			334			95,524			87,330
Schedule of loans modified under the terms of TDR	'
			New Troubled Debt Restructurings																				New Troubled Debt Restructurings
			for the Three Months Ended September 30,																				for the Nine Months Ended September 30,
															Modified Within the																	Modified Within the
															Previous Twelve Months																	Previous Twelve Months
															that Have Subsequently																	that Have Subsequently
							Pre-			Post-					Defaulted During the										Pre-			Post-				Defaulted During the Nine
						Modification				Modification					Three Months Ended										Modification			Modification				Months Ended
						Outstanding				Outstanding					30-Sep-14										Outstanding			Outstanding				30-Sep-14
			Number of			Recorded				Recorded					Number of			Recorded					Number of		Recorded			Recorded				Number of		Recorded
	2014		Contracts			Investment				Investment					Contracts			Investment					Contracts		Investment			Investment				Contracts		Investment
	Owner occupied commercial real estate			2			$	747			$	747				—			$	—				9		$	4,139		$	4,139		$	1		$	104
	Income producing commercial real estate			—				—				—				—				—				5			1,992			1,992			—			—
	Commercial & industrial			6				452				452				—				—				10			782			782			2			54
	Commercial construction			—				—				—				—				—				2			471			471			—			—
	Total commercial			8				1,199				1,199				—				—				26			7,384			7,384			3			158
	Residential mortgage			10				778				673				2				139				33			2,924			2,778			8			871
	Home equity lines of credit			—				—				—				—				—				1			36			36			—			—
	Residential construction			—				—				—				—				—				3			1,124			1,124			—			—
	Consumer installment			—				—				—				—				—				5			226			226			—			—
	Indirect auto			—				—				—				—				—				—			—			—			—			—
	Total loans			18			$	1,977			$	1,872				2			$	139				68		$	11,694		$	11,548			11		$	1,029
															Modified Within the																Modified Within the
															Previous Twelve Months																Previous Twelve Months
															that Have Subsequently																that Have Subsequently
							Pre-				Post-				Defaulted During the											Pre-			Post-		Defaulted During the Nine
						Modification				Modification					Three Months Ended										Modification			Modification			Months Ended
						Outstanding				Outstanding					30-Sep-13										Outstanding			Outstanding			30-Sep-13
			Number of			Recorded				Recorded					Number of			Recorded					Number of		Recorded			Recorded			Number of			Recorded
	2013		Contracts			Investment				Investment					Contracts			Investment					Contracts		Investment			Investment			Contracts			Investment
	Owner occupied commercial real estate			1			$	1,841			$	741				—			$	—				11		$	5,923		$	4,823		$	1		$	432
	Income producing commercial real estate			—				—				—				—				—				7			6,009			6,009			—			—
	Commercial & industrial			1				68				68				—				—				10			883			777			1			35
	Commercial construction			—				—				—				—				—				—			—			—			2			1,454
	Total commercial			2				1,909				809				—				—				28			12,815			11,609			4			1,921
	Residential mortgage			16				2,365				2,207				1				533				29			5,129			4,827			3			641
	Home equity lines of credit			—				—				—				—				—				—			—			—			—			—
	Residential construction			3				727				727				1				414				10			1,850			1,721			3			531
	Consumer installment			1				7				7				2				9				5			28			28			5			29
	Indirect auto			—				—				—				—				—				—			—			—			—			—
	Total loans			22			$	5,008			$	3,750				4			$	956				72		$	19,822		$	18,185			15		$	3,122
Schedule of risk category of loans by class of loans	'
											Substandard								Doubtful /
	As of September 30, 2014		Pass				Watch				Performing				Nonaccrual				Loss				Total
	Owner occupied commercial real estate		$	1,076,822			$	25,098			$	49,857			$	2,156			$	—			$	1,153,933
	Income producing commercial real estate			563,451				17,319				22,215				1,742				—				604,727
	Commercial & industrial			637,160				3,602				7,498				1,593				—				649,853
	Commercial construction			174,443				2,356				3,847				148				—				180,794
	Total commercial			2,451,876				48,375				83,417				5,639				—				2,589,307
	Residential mortgage			803,937				10,300				42,981				8,350				—				865,568
	Home equity lines of credit			450,026				—				8,073				720				—				458,819
	Residential construction			284,491				7,389				11,755				3,543				—				307,178
	Consumer installment			102,460				—				2,746				139				—				105,345
	Indirect auto			242,315				—				—				354				—				242,669
	Total loans		$	4,335,105			$	66,064			$	148,972			$	18,745			$	—			$	4,568,886
	As of December 31, 2013
	Owner occupied commercial real estate		$	1,054,924			$	29,714			$	43,083			$	5,822			$	—			$	1,133,543
	Income producing commercial real estate			575,597				10,410				34,642				2,518								623,167
	Commercial & industrial			456,563				5,382				9,589				427				—				471,961
	Commercial construction			120,852				10,932				16,758				361				—				148,903
	Total commercial			2,207,936				56,438				104,072				9,128				—				2,377,574
	Residential mortgage			793,381				25,944				44,022				11,730				—				875,077
	Home equity lines of credit			426,052				5,420				7,967				1,448								440,887
	Residential construction			298,685				11,526				14,104				4,264				—				328,579
	Consumer installment			107,029				1,229				2,538				249				—				111,045
	Indirect auto			196,104				—				—				—				—				196,104
	Total loans		$	4,029,187			$	100,557			$	172,703			$	26,819			$	—			$	4,329,266
	As of September 30, 2013
	Owner occupied commercial real estate		$	1,046,900			$	35,948			$	39,946			$	6,358			$	—			$	1,129,152
	Income producing commercial real estate			556,963				19,403				35,596				1,657				—				613,619
	Commercial & industrial			436,401				10,062				10,342				609				—				457,414
	Commercial construction			109,332				10,560				16,911				343				—				137,146
	Total commercial			2,149,596				75,973				102,795				8,967				—				2,337,331
	Residential mortgage			808,574				23,277				45,493				11,335				—				888,679
	Home equity lines of credit			406,575				5,193				7,679				1,169				—				420,616
	Residential construction			283,197				14,943				15,552				4,097				—				317,789
	Consumer installment			112,706				1,162				2,147				520				—				116,535
	Indirect auto			186,117				—				—				—				—				186,117
	Total loans		$	3,946,765			$	120,548			$	173,666			$	26,088			$	—			$	4,267,067
Schedule of recorded investment in nonaccrual loans by loan class	'
			Nonaccrual Loans
			September 30,			December 31,					September 30,
			2014			2013					2013
	Owner occupied commercial real estate		$	2,156			$	5,822			$	6,358
	Income producing commercial real estate			1,742				2,518				1,657
	Commercial & industrial			1,593				427				609
	Commercial construction			148				361				343
	Total commercial			5,639				9,128				8,967
	Residential mortgage			8,350				11,730				11,335
	Home equity lines of credit			720				1,448				1,169
	Residential construction			3,543				4,264				4,097
	Consumer installment			139				249				520
	Indirect auto			354				—				—
	Total		$	18,745			$	26,819			$	26,088
	Balance as a percentage of unpaid principal			68.6	%			65.3	%			61.6	%

Foreclosed_Property_Tables

Foreclosed Property (Tables)	9 Months Ended
	Sep. 30, 2014
Foreclosed Property [Abstract]	'
Schedule of classifications of foreclosed properties	'
			September 30,				December 31,				September 30,
			2014				2013				2013
	Commercial real estate		$	1,350			$	1,287			$	1,130
	Commercial construction			—				—				376
	Total commercial			1,350				1,287				1,506
	Residential mortgage			1,954				3,380				2,420
	Residential construction			588				736				1,981
	Total foreclosed property			3,892				5,403				5,907
	Less valuation allowance			(746	)			(1,182	)			(1,440	)
	Foreclosed property, net		$	3,146			$	4,221			$	4,467
	Balance as a percentage of original loan unpaid principal			54.5	%			44.5	%			41.5	%
Schedule of activity in the valuation allowance for foreclosed property	'
		Three Months Ended									Nine Months Ended
		September 30,									September 30,
			2014				2013				2014				2013
	Balance at beginning of period		$	741			$	3,602			$	1,182			$	6,954
	Additions charged to expense			108				329				690				2,739
	Disposals			(103	)			(2,491	)			(1,126	)			(8,253	)
	Balance at end of period		$	746			$	1,440			$	746			$	1,440
Schedule of expenses related to foreclosed assets	'
		Three Months Ended								Nine Months Ended
		September 30,								September 30,
		2014				2013				2014				2013
	Net (gain)/loss on sales		$	(264	)		$	513			$	(1,208	)		$	3,563
	Provision for unrealized losses			108				329				690				2,739
	Operating expenses			441				(648	)			1,021				1,376
	Total foreclosed property expense		$	285			$	194			$	503			$	7,678

Reclassifications_Out_of_Accum1

Reclassifications Out of Accumulated Other Comprehensive Income (Tables)	9 Months Ended
	Sep. 30, 2014
Reclassifications Out Of Accumulated Other Comprehensive Income [Abstract]	'
Schedule of reclassifications out of accumulated other comprehensive income	'
			Amounts Reclassified from Accumulated Other
			Comprehensive Income
		For the three months ended							For the nine months ended
	Details about Accumulated Other		September 30,							September 30,						Affected Line Item in the Statement
	Comprehensive Income Components		2014			2013				2014			2013			Where Net Income is Presented
	Realized gains on sales of available-for-sale securities:
			$	11		$	—			$	4,663		$	116		Securities gains, net
				(4	)		—				(1,821	)		(45	)	Tax expense
			$	7		$	—			$	2,842		$	71		Net of tax
	Amortization of (losses) gains included in net income on available-for-sale securities transferred to held to maturity:
			$	(468	)	$	214			$	(1,207	)	$	803		Investment securities interest revenue
				176			(83	)			453			(310	)	Tax benefit (expense)
			$	(292	)	$	131			$	(754	)	$	493		Net of tax
	Amounts included in net income on derivative financial instruments accounted for as cash flow hedges:
	Effective portion of interest rate contracts		$	—		$	10			$	—		$	850		Loan interest revenue
	Ineffective portion of interest rate contracts			—			48				—			52		Loan interest revenue
	Effective portion of interest rate contracts			(317	)		—				(764	)		—		Brokered deposit interest expense
	Amortization of losses on de-designated positions			(81	)		—				(105	)		—		Money market deposit interest expense
	Amortization of losses on de-designated positions			(313	)		—				(512	)		—		Brokered deposit interest expense
				(711	)		58				(1,381	)		902		Total before tax
				277			(23	)			538			(351	)	Tax or benefit (expense)
			$	(434	)	$	35			$	(843	)	$	551		Net of tax
	Amortization of prior service cost and actuarial losses included in net periodic pension cost for defined benefit pension plan
	Prior service cost		$	(91	)	$	(91	)		$	(274	)	$	(273	)	Salaries and employee benefits expense
	Actuarial losses			—			(42	)			—			(126	)	Salaries and employee benefits expense
				(91	)		(133	)			(274	)		(399	)	Total before tax
				36			52				107			155		Tax benefit
			$	(55	)	$	(81	)		$	(167	)	$	(244	)	Net of tax
	Total reclassifications for the period		$	(774	)	$	85			$	1,078		$	871		Net of tax

Earnings_Per_Share_Tables

Earnings Per Share (Tables)	9 Months Ended
	Sep. 30, 2014
Earnings Per Share [Abstract]	'
Schedule of accrued dividends on preferred stock, including accretion of discounts	'
		Three Months Ended				Nine Months Ended
		September 30,				September 30,
		2014		2013		2014		2013
	Series A - 6% fixed	$	—	$	3	$	—	$	9
	Series B - 5% fixed until December 6, 2013, 9% thereafter		—		2,641		159		7,907
	Series D - LIBOR plus 9.6875%, resets quarterly		—		415		280		1,250
	Total preferred stock dividends	$	—	$	3,059	$	439	$	9,166
Schedule of computation of basic and diluted loss per share	'
		Three Months Ended				Nine Months Ended
		September 30,				September 30,
		2014		2013		2014		2013
	Net income available to common shareholders	$	17,616	$	12,441	$	48,934	$	248,063
	Weighted average shares outstanding:
	Basic		60,776		59,100		60,511		58,443
	Effect of dilutive securities
	Stock options		3		1		2		1
	Warrants		—		101		—		—
	Diluted		60,779		59,202		60,513		58,444
	Income per common share:
	Basic	$	0.29	$	0.21	$	0.81	$	4.24
	Diluted	$	0.29	$	0.21	$	0.81	$	4.24

Derivatives_and_Hedging_Activi1

Derivatives and Hedging Activities (Tables)	9 Months Ended
	Sep. 30, 2014
Derivatives and Hedging Activities [Abstract]	'
Schedule of derivative financial instruments on consolidated balance sheet	'
	Derivatives designated as hedging instruments under ASC 815
					Fair Value
			Balance Sheet		September 30,				December 31,				September 30,
	Interest Rate Products		Location		2014				2013				2013
	Cash flow hedge of money market deposits		Other assets		$	1,349			$	4,782			$	3,580
	Fair value hedge of corporate bonds		Other assets			—				3,939				2,709
					$	1,349			$	8,721			$	6,289
	Cash flow hedge of short-term debt		Other liabilities		$	—			$	3,368			$	3,247
	Cash flow hedge of money market deposits		Other liabilities			—				—				431
	Fair value hedge of brokered CD’s		Other liabilities			10,201				19,970				28,748
	Fair value hedge of corporate bonds		Other liabilities			—				2,308				3,025
					$	10,201			$	25,646			$	35,451
	Derivatives not designated as hedging instruments under ASC 815
					Fair Value
			Balance Sheet		September 30,				December 31,				September 30,
	Interest Rate Products		Location		2014				2013				2013
	Customer swap positions		Other assets		$	2,067			$	898			$	1,096
	Dealer offsets to customer swap positions		Other assets			475				1,347				707
	Bifurcated embedded derivatives		Other assets			14,780				12,867				—
	Offsetting positions for de-designated cash flow hedges		Other assets			3,550				—				—
					$	20,872			$	15,112			$	1,803
	Customer swap positions		Other liabilities		$	475			$	1,347			$	707
	Dealer offsets to customer swap positions		Other liabilities			2,087				915				1,111
	Dealer offsets to bifurcated embedded derivatives		Other liabilities			19,858				18,324				—
	De-designated cash flow hedge of brokered CDs		Other liabilities			2,645				—				—
	De-designated cash flow hedge of money market deposits		Other liabilities			905				—				—
					$	25,970			$	20,586			$	1,818
Schedule of effect of fair value hedging derivative financial instruments on the consolidated statement of operations	'
	Derivatives in Fair Value Hedging Relationships (in thousands).
			Location of Gain		Amount of Gain (Loss)								Amount of Gain (Loss)
			(Loss) Recognized		Recognized in Income								Recognized in Income
			in Income on		on Derivative								on Hedged Item
			Derivative		2014				2013				2014				2013
	Three Months Ended September 30,
	Fair value hedges of brokered CD’s		Interest expense		$	(37	)		$	(2,849	)		$	(275	)		$	2,872
	Fair value hedges of corporate bonds		Interest revenue			—				109				—				(94	)
					$	(37	)		$	(2,740	)		$	(275	)		$	2,778
	Nine Months Ended September 30,
	Fair value hedges of brokered CD’s		Interest expense		$	10,078			$	(20,134	)		$	(10,691	)		$	19,988
	Fair value hedges of corporate bonds		Interest revenue			(2,487	)			4,338				2,163				(3,951	)
					$	7,591			$	(15,796	)		$	(8,528	)		$	16,037
Schedule of effect of cash flow hedging derivative financial instruments on other comprehensive income	'
	Derivatives in Cash Flow Hedging Relationships (in thousands).
		Amount of Gain (Loss)
		Recognized in Other								Gain (Loss) Reclassified from
		Comprehensive								Accumulated Other Comprehensive									Gain (Loss) Recognized in Income on
		Income on Derivative								Income into Income									Derivative
		(Effective Portion)								(Effective Portion)									(Ineffective Portion)
		2014					2013			Location		2014			2013				Location	2014			2013
	Three Months Ended September 30,
										Interest revenue		$	—			$	58
										Interest expense			(711	)			—
	Interest rate swaps		$	412			$	(3,507	)	Total		$	(711	)		$	58		Interest expense	$	12			$	(33	)
	Nine Months Ended September 30,
										Interest revenue		$	—			$	902
										Interest expense			(1,381	)			—
	Interest rate swaps		$	(5,967	)		$	8,595		Total		$	(1,381	)		$	902		Interest expense	$	(73	)		$	46

StockBased_Compensation_Tables

Stock-Based Compensation (Tables)	9 Months Ended
	Sep. 30, 2014
Disclosure Of Compensation Related Costs, Share-Based Payments [Abstract]	'
Schedule of stock option activity	'
								Weighted-
								Average		Aggregate
						Weighted-		Remaining		Intrinisic
						Average Exercise		Contractual		Value
	Options		Shares			Price		Term (Years)		$0
	Outstanding at December 31, 2013			350,772		$	97.87
	Expired			(45,481	)		110.57
	Outstanding at September 30, 2014			305,291			95.98		2.9	$	59
	Exercisable at September 30, 2014			299,041			97.7		2.8		41
Schedule of No stock options were granted	'
		Nine Months Ended
		September 30,
		2014		2013
	Expected volatility	NA		30.00%
	Expected dividend yield	NA		0.00%
	Expected life (in years)	NA		6.25
	Risk-free rate	NA		2.01%
Schedule of activity in restricted stock and restricted stock unit awards	'
						Weighted-
						Average Grant-
	Restricted Stock		Shares			Date Fair Value
	Outstanding at December 31, 2013			1,073,676		$	13.73
	Granted			55,066			17.73
	Excercised			(324,108	)		12.24
	Cancelled			(3,300	)		13.18
	Outstanding at September 30, 2014			801,334			14.61
	Vested at September 30, 2014			7,580			9.9

Assets_and_Liabilities_Measure1

Assets and Liabilities Measured at Fair Value (Tables)	9 Months Ended
	Sep. 30, 2014
Fair Value [Abstract]	'
Schedule of assets and liabilities measured at fair value on a recurring basis	'
	30-Sep-14	Level 1		Level 2		Level 3			Total
	Assets:
	Securities available for sale:
	U.S. Treasury securities	$	—	$	105,022	$	—		$	105,022
	State and political subdivisions		—		20,321		—			20,321
	Mortgage-backed securities		—		1,034,992		—			1,034,992
	Corporate bonds		—		164,952		300			165,252
	Asset-backed securities		—		462,044		—			462,044
	Other		—		2,036		—			2,036
	Deferred compensation plan assets		3,734		—		—			3,734
	Derivative financial instruments		—		22,221		—			22,221
	Total assets	$	3,734	$	1,811,588	$	300		$	1,815,622
	Liabilities:
	Deferred compensation plan liability	$	3,734	$	—	$	—		$	3,734
	Brokered certificates of deposit		—		175,053		—			175,053
	Derivative financial instruments		—		36,171		—			36,171
	Total liabilities	$	3,734	$	211,224	$	—		$	214,958
	31-Dec-13	Level 1		Level 2		Level 3			Total
	Assets:
	Securities available for sale
	State and political subdivisions	$	—	$	23,242	$	—		$	23,242
	Mortgage-backed securities		—		1,145,347		—			1,145,347
	Corporate bonds		—		249,946		350			250,296
	Asset-backed securities		—		410,633		—			410,633
	Other		—		2,699		—			2,699
	Deferred compensation plan assets		3,496		—		—			3,496
	Derivative financial instruments		—		23,833		—			23,833
	Total assets	$	3,496	$	1,855,700	$	350		$	1,859,546
	Liabilities:
	Deferred compensation plan liability	$	3,496	$	—	$	—		$	3,496
	Brokered certificates of deposit		—		173,657		—			173,657
	Derivative financial instruments		—		46,232		—			46,232
	Total liabilities	$	3,496	$	219,889	$	—		$	223,385
	30-Sep-13	Level 1		Level 2		Level 3			Total
	Assets:
	Securities available for sale:
	State and political subdivisions	$	—	$	23,524	$	—		$	23,524
	Mortgage-backed securities		—		1,383,317		—			1,383,317
	Corporate bonds		—		246,601		350			246,951
	Asset-backed securities		—		307,238		—			307,238
	Other		—		2,394		—			2,394
	Deferred compensation plan assets		3,203		—		—			3,203
	Derivative financial instruments		—		8,092		—			8,092
	Total assets	$	3,203	$	1,971,166	$	350		$	1,974,719
	Liabilities:
	Deferred compensation plan liability	$	3,203	$	—	$	—		$	3,203
	Brokered certificates of deposit		—		273,282		—			273,282
	Derivative financial instruments		—		37,269		—			37,269
	Total liabilities	$	3,203	$	310,551	$	—		$	313,754
Schedule of assets measured at fair value on a recurring basis using significant unobservable inputs	'
		Three Months Ended				Nine Months Ended
		September 30,				September 30,
	Securities Available for Sale	2014		2013		2014			2013
	Balance at beginning of period	$	300	$	350	$	350		$	350
	Amounts included in earnings		—		—		—			—
	Paydowns / sales		—		—		(50	)		—
	Balance at end of period	$	300	$	350	$	300		$	350
Schedule of presentation of united's assets and liabilities measured at fair value on nonrecurring basis	'
	30-Sep-14	Level 1		Level 2		Level 3			Total
	Assets
	Loans	$	—	$	—	$	85,827		$	85,827
	Foreclosed properties		—		—		2,204			2,204
	Total	$	—	$	—	$	88,031		$	88,031
	31-Dec-13
	Assets
	Loans	$	—	$	—	$	82,798		$	82,798
	Foreclosed properties		—		—		3,747			3,747
	Total	$	—	$	—	$	86,545		$	86,545
	30-Sep-13
	Assets
	Loans	$	—	$	—	$	76,393		$	76,393
	Foreclosed properties		—		—		3,898			3,898
	Total	$	—	$	—	$	80,291		$	80,291
Schedule of carrying amount and fair values for other financial instruments that are not measured at fair value on a recurring basis	'
		Carrying		Fair Value Level
	30-Sep-14	Amount		Level 1		Level 2			Level 3		Total
	Assets:
	Securities held to maturity	$	432,418	$	—	$	440,311		$	—	$	440,311
	Loans, net		4,496,958		—		—			4,437,039		4,437,039
	Mortgage loans held for sale		20,004		—		20,253			—		20,253
	Liabilities:
	Deposits		6,240,729		—		6,228,804			—		6,228,804
	Federal Home Loan Bank advances		330,125		—		330,134			—		330,134
	Long-term debt		129,865		—		—			132,636		132,636
	31-Dec-13
	Assets:
	Securities held to maturity		479,742		—		485,585			—		485,585
	Loans, net		4,252,504		—		—			4,165,591		4,165,591
	Mortgage loans held for sale		10,319		—		10,529			—		10,529
	Liabilities:
	Deposits		6,201,505		—		6,204,815			—		6,204,815
	Federal Home Loan Bank advances		120,125		—		120,125			—		120,125
	Long-term debt		129,865		—		—			130,262		130,262
	30-Sep-13
	Assets:
	Securities held to maturity		205,613		—		214,651			—		214,651
	Loans, net		4,186,695		—		—			4,095,666		4,095,666
	Mortgage loans held for sale		11,987		—		11,979			—		11,979
	Liabilities:
	Deposits		6,112,907		—		6,117,769			—		6,117,769
	Federal Home Loan Bank advances		125		—		125			—		125
	Long-term debt		129,865		—		—			129,197		129,197

Commitments_and_Contingencies_

Commitments and Contingencies (Tables)	9 Months Ended
	Sep. 30, 2014
Commitments and Contingencies Disclosure [Abstract]	'
Schedule of contractual amount of off-balance sheet instruments	'
		30-Sep-14		31-Dec-13		30-Sep-13
	Financial instruments whose contract amounts represent credit risk:
	Commitments to extend credit	$	852,635	$	747,170	$	677,891
	Letters of credit		20,534		19,846		9,818

Acquisition_Details_Textuals

Acquisition (Details Textuals) (USD $)	9 Months Ended		1 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Jun. 26, 2014
			Business Carolina, Inc
Business Acquisition [Line Items]	'	'	'
Cash paid for loan	$31,243,000	'	$31,200,000
Loans	'	'	24,800,000
Accrued interest	'	'	83,000
Servicing rights	'	'	2,130,000
Premises and equipment	'	'	2,600,000
Goodwill	'	'	$1,490,000

Balance_Sheet_Offsetting_Summa

Balance Sheet Offsetting - Summary of amounts outstanding under master netting agreements (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2013		Jun. 30, 2013	Mar. 31, 2013
Offsetting [Abstract]	'	'	'		'	'
Repurchase and reverse repurchase agreements gross amounts of recognized assets	$392,000,000	$385,000,000	$405,000,000		'	'
Repurchase and reverse repurchase agreements gross amounts offset on balance sheet assets	-375,000,000	-350,000,000	-350,000,000		'	'
Repurchase and reverse repurchase agreements net assets balance	17,000,000	35,000,000	55,000,000		'	'
Repurchase and reverse repurchase agreements gross amounts not off set in balance sheet assets of financial instruments	'	'	'	[1]	'	'
Repurchase and reverse repurchase agreements gross amounts not off set in balance sheet assets of collateral received	-17,985,000	-38,982,000	-59,685,000	[2]	-53,700,000	-87,500,000
Repurchase and reverse repurchase agreements net amount	'	'	'		'	'
Derivative, gross amounts of recognized assets	22,221,000	23,833,000	8,092,000		'	'
Derivative, gross amounts offset on the balance sheet	'	'	'		'	'
Derivatives net asset balance	22,221,000	23,833,000	8,092,000		'	'
Derivative, gross amounts not off set in balance sheet assets of financial instruments	-2,093,000	-4,378,000	-3,765,000	[1]	-4,300,000	-57,000
Derivative, gross amounts not off set in balance sheet assets of collateral received	-3,427,000	-2,912,000	-2,205,000	[2]	'	'
Derivative assets net amount	16,701,000	16,543,000	2,122,000		'	'
Offsetting assets gross amounts of recognized assets	414,221,000	408,833,000	413,092,000		'	'
Offsetting assets gross amounts offset on balance sheet	-375,000,000	-350,000,000	-350,000,000		'	'
Offsetting assets net asset balance	39,221,000	58,833,000	63,092,000		'	'
Offsetting assets gross amounts not offset in balance sheet of financial instruments	-2,093,000	-4,378,000	-3,765,000	[1]	'	'
Offsetting assets gross amounts not offset in the balance sheet of collateral received	-21,412,000	-41,894,000	-61,890,000	[2]	'	'
Offsetting assets net amount	16,701,000	16,543,000	2,122,000		'	'
Weighted average interest rate of reverse repurchase agreements assets	1.16%	1.09%	1.13%		'	'
Repurchase and reverse repurchase agreements gross amounts of recognized liabilities	375,000,000	350,000,000	350,000,000		'	'
Repurchase and reverse repurchase agreements gross amounts offset on balance sheet liabilities	-375,000,000	-350,000,000	-350,000,000		'	'
Repurchase and reverse repurchase agreements net liabilities balance	'	'	'		'	'
Repurchase and reverse repurchase agreements gross amounts not off set in balance sheet liabilities of financial instruments	'	'	'	[1]	'	'
Repurchase and reverse repurchase agreements gross amounts not off set in balance sheet liabilities of collateral pledged	'	'	'	[2]	'	'
Repurchase and reverse repurchase agreements net amount	'	'	'		'	'
Derivative liability, gross amounts of recognized liabilities	36,171,000	46,232,000	37,269,000		'	'
Derivative liability, gross amounts offset on balance sheet liabilities	'	'	'		'	'
Derivative liability, net liabilities balance	36,171,000	46,232,000	37,269,000		'	'
Derivative liability, gross amounts not off set in balance sheet liabilities of financial instruments	-2,093,000	-4,378,000	-3,765,000	[1]	'	'
Derivative liability, gross amounts not off set in balance sheet liabilities of collateral pledged	-38,195,000	-38,145,000	-29,011,000	[2]	'	'
Derivative liability net amount	'	3,709,000	4,493,000		'	'
Offsetting liabilities gross amounts of recognized liabilities	411,171,000	396,232,000	387,269,000		'	'
Offsetting liabilities gross amounts offset on balance sheet	-375,000,000	-350,000,000	-350,000,000		'	'
Offsetting liabilities, net liabilities balance	36,171,000	46,232,000	37,269,000		'	'
Offsetting liabilities gross amounts not offset in balance sheet of financial instruments	-2,093,000	-4,378,000	-3,765,000	[1]	'	'
Offsetting liabilities gross amounts not offset in the balance sheet of collateral pledged	-38,195,000	-38,145,000	-29,011,000	[2]	'	'
Offsetting liabilities net amount	'	3,709,000	4,493,000		'	'
Weighted average interest rate of reverse repurchase agreements liabilities	0.31%	0.27%	0.28%		'	'
Net increase in the collateral pledged position	'	'	$1,230,000		'	'
[1]	United's original filings for the third, second and first quarters of 2013 contained an error and did not include amounts available for offset under master netting agreements for derivative financial instruments. Those amounts were $3.77 million, $4.30 million and $57,000, respectively, for the third, second and first quarters of 2013 and have been added to the balance sheet offsetting table for each respective period. United considers these revisions to be immaterial to the presentation of the financial statements for those quarters.
[2]	United's original filings for the third, second and first quarters of 2013 contained an error and did not include amounts pledged by counterparties as collateral on reverse repurchase agreement positions. Those amounts were $59.7 million, $53.7 million and $87.5 million, respectively, for the third, second and first quarters of 2013 and have been added to the balance sheet offsetting table for each respective period in the current year presentation. In addition, in the original filings for the third and second quarters of 2013, the amounts reported by United as collateral pledged on derivative financial positions were reported net of collateral received on asset derivative positions. The amounts for those periods have been reported separately as collateral received and collateral pledged in the current year presentation. Additionally, upon further analysis, United updated collateral balances for the third quarter 2013 resulting in a net increase in the collateral pledged position of $1.23 million. United considers these revisions to be immaterial to the presentation of the financial statements for those quarters.

Securities_Amortized_cost_gros

Securities - Amortized cost, gross unrealized gains and losses and fair value of securities held to maturity (Details) (USD $)	Sep. 30, 2014		Dec. 31, 2013		Sep. 30, 2013
In Thousands, unless otherwise specified
Held-to-maturity securities:	'		'		'
Amortized Cost	$432,418		$479,742		$205,613
Gross Unrealized Gains	11,148		9,408		9,490
Gross Unrealized Losses	3,255		3,565		452
Held-To-Maturity, Fair value	440,311		485,585		214,651
State and political subdivisions	'		'		'
Held-to-maturity securities:	'		'		'
Amortized Cost	50,248		51,733		51,745
Gross Unrealized Gains	3,849		2,718		2,723
Gross Unrealized Losses	'		42		53
Held-To-Maturity, Fair value	54,097		54,409		54,415
Mortgage-backed securities	'		'		'
Held-to-maturity securities:	'		'		'
Amortized Cost	382,170	[1]	428,009	[1]	153,868	[1]
Gross Unrealized Gains	7,299	[1]	6,690	[1]	6,767	[1]
Gross Unrealized Losses	3,255	[1]	3,523	[1]	399	[1]
Held-To-Maturity, Fair value	$386,214	[1]	$431,176	[1]	$160,236	[1]
[1]	All are residential type mortgage-backed securities

Securities_Summary_of_held_to_

Securities - Summary of held to maturity securities in unrealized loss position (Details 1) (USD $)	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2013
In Thousands, unless otherwise specified
Summary of held to maturity securities in an unrealized loss position	'	'	'
Fair Value, Less than 12 Months	$189,223	$261,465	$12,834
Unrealized Loss, Less than 12 Months	3,147	3,565	452
Fair Value, 12 Months or More	2,798	'	'
Unrealized Loss, 12 Months or More	108	'	'
Fair Value, Total	192,021	261,465	12,834
Unrealized Loss, Total	3,255	3,565	452
State and political subdivisions	'	'	'
Summary of held to maturity securities in an unrealized loss position	'	'	'
Fair Value, Less than 12 Months	'	1,595	4,825
Unrealized Loss, Less than 12 Months	'	42	53
Fair Value, 12 Months or More	'	'	'
Unrealized Loss, 12 Months or More	'	'	'
Fair Value, Total	'	1,595	4,825
Unrealized Loss, Total	'	42	53
Mortgage-backed securities	'	'	'
Summary of held to maturity securities in an unrealized loss position	'	'	'
Fair Value, Less than 12 Months	189,223	259,870	8,009
Unrealized Loss, Less than 12 Months	3,147	3,523	399
Fair Value, 12 Months or More	2,798	'	'
Unrealized Loss, 12 Months or More	108	'	'
Fair Value, Total	192,021	259,870	8,009
Unrealized Loss, Total	$3,255	$3,523	$399

Securities_Cost_basis_unrealiz

Securities - Cost basis, unrealized gains and losses, and fair value of securities available for sale (Details 2) (USD $)	Sep. 30, 2014		Dec. 31, 2013		Sep. 30, 2013
In Thousands, unless otherwise specified
Investment securities available-for-sale:	'		'		'
Amortized Cost	$1,781,115		$1,835,459		$1,977,807
Gross Unrealized Gains	20,977		17,958		18,134
Gross Unrealized Losses	12,425		21,200		32,517
Available for Sale, Fair Value	1,789,667		1,832,217		1,963,424
U.S. Treasury securities	'		'		'
Investment securities available-for-sale:	'		'		'
Amortized Cost	105,385		'		'
Gross Unrealized Gains	245		'		'
Gross Unrealized Losses	608		'		'
Available for Sale, Fair Value	105,022		'		'
State and political subdivisions	'		'		'
Investment securities available-for-sale:	'		'		'
Amortized Cost	19,686		22,558		22,781
Gross Unrealized Gains	666		823		893
Gross Unrealized Losses	31		139		150
Available for Sale, Fair Value	20,321		23,242		23,524
Mortgage-backed securities	'		'		'
Investment securities available-for-sale:	'		'		'
Amortized Cost	1,029,881	[1]	1,145,800	[1]	1,390,280	[1]
Gross Unrealized Gains	15,010	[1]	13,296	[1]	14,469	[1]
Gross Unrealized Losses	9,899	[1]	13,749	[1]	21,432	[1]
Available for Sale, Fair Value	1,034,992	[1]	1,145,347	[1]	1,383,317	[1]
Corporate bonds	'		'		'
Investment securities available-for-sale:	'		'		'
Amortized Cost	165,558		255,316		255,391
Gross Unrealized Gains	1,427		1,304		936
Gross Unrealized Losses	1,733		6,324		9,376
Available for Sale, Fair Value	165,252		250,296		246,951
Asset-backed securities	'		'		'
Investment securities available-for-sale:	'		'		'
Amortized Cost	458,569		409,086		306,961
Gross Unrealized Gains	3,629		2,535		1,836
Gross Unrealized Losses	154		988		1,559
Available for Sale, Fair Value	462,044		410,633		307,238
Other	'		'		'
Investment securities available-for-sale:	'		'		'
Amortized Cost	2,036		2,699		2,394
Gross Unrealized Gains	'		'		'
Gross Unrealized Losses	'		'		'
Available for Sale, Fair Value	$2,036		$2,699		$2,394
[1]	All are residential type mortgage-backed securities

Securities_Summary_of_availabl

Securities - Summary of available for sale securities in unrealized loss position (Details 3) (USD $)	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2013
In Thousands, unless otherwise specified
Summary of available for sale securities in an unrealized loss position	'	'	'
Fair Value, Less than 12 Months	$338,485	$641,786	$732,740
Unrealized Loss, Less than 12 Months	2,003	11,835	25,438
Fair Value, 12 Months or More	313,673	252,365	209,767
Unrealized Loss, 12 Months or More	10,422	9,365	7,079
Fair Value, Total	652,158	894,151	942,507
Unrealized Loss, Total	12,425	21,200	32,517
U.S. Treasury securities	'	'	'
Summary of available for sale securities in an unrealized loss position	'	'	'
Fair Value, Less than 12 Months	104,777	'	'
Unrealized Loss, Less than 12 Months	608	'	'
Fair Value, 12 Months or More	'	'	'
Unrealized Loss, 12 Months or More	'	'	'
Fair Value, Total	104,777	'	'
Unrealized Loss, Total	608	'	'
State and political subdivisions	'	'	'
Summary of available for sale securities in an unrealized loss position	'	'	'
Fair Value, Less than 12 Months	'	4,539	4,533
Unrealized Loss, Less than 12 Months	'	139	148
Fair Value, 12 Months or More	3,638	'	10
Unrealized Loss, 12 Months or More	31	'	2
Fair Value, Total	3,638	4,539	4,543
Unrealized Loss, Total	31	139	150
Mortgage-backed securities	'	'	'
Summary of available for sale securities in an unrealized loss position	'	'	'
Fair Value, Less than 12 Months	126,445	334,996	533,681
Unrealized Loss, Less than 12 Months	844	6,480	17,958
Fair Value, 12 Months or More	265,426	175,865	100,534
Unrealized Loss, 12 Months or More	9,055	7,269	3,474
Fair Value, Total	391,871	510,861	634,215
Unrealized Loss, Total	9,899	13,749	21,432
Corporate bonds	'	'	'
Summary of available for sale securities in an unrealized loss position	'	'	'
Fair Value, Less than 12 Months	49,547	137,318	115,511
Unrealized Loss, Less than 12 Months	414	4,494	6,463
Fair Value, 12 Months or More	34,657	54,130	53,042
Unrealized Loss, 12 Months or More	1,319	1,830	2,913
Fair Value, Total	84,204	191,448	168,553
Unrealized Loss, Total	1,733	6,324	9,376
Asset-backed securities	'	'	'
Summary of available for sale securities in an unrealized loss position	'	'	'
Fair Value, Less than 12 Months	57,716	164,933	79,015
Unrealized Loss, Less than 12 Months	137	722	869
Fair Value, 12 Months or More	9,952	22,370	56,181
Unrealized Loss, 12 Months or More	17	266	690
Fair Value, Total	67,668	187,303	135,196
Unrealized Loss, Total	$154	$988	$1,559

Securities_Amortized_cost_and_

Securities - Amortized cost and fair value of held to maturity and available for sale securities (Details 4) (USD $)	Sep. 30, 2014		Dec. 31, 2013		Sep. 30, 2013
In Thousands, unless otherwise specified
Available for Sale - Amortized Cost and Fair Value	'		'		'
Available for Sale, Amortized Cost	$1,781,115		$1,835,459		$1,977,807
Available for Sale, Fair Value	1,789,667		1,832,217		1,963,424
Held to Maturity - Amortized Cost and Fair Value	'		'		'
Held to Maturity, Amortized Cost	432,418		479,742		205,613
Held-To-Maturity, Fair value	440,311		485,585		214,651
U.S. Treasury securities	'		'		'
Available for Sale - Amortized Cost and Fair Value	'		'		'
Available for Sale, Amortized Cost, 1 to 5 years	86,203		'		'
Available for Sale, Fair Value, 1 to 5 years	85,841		'		'
Available for Sale, Amortized Cost, 5 to 10 years	19,182		'		'
Available for Sale, Fair Value, 5 to 10 years	19,181		'		'
Available for Sale, Amortized Cost	105,385		'		'
Available for Sale, Fair Value	105,022		'		'
Held to Maturity - Amortized Cost and Fair Value	'		'		'
Held to Maturity, Amortized Cost, 1 to 5 years	'		'		'
Held to Maturity, Fair Value, 1 to 5 years	'		'		'
Held to Maturity, Amortized Cost, 5 to 10 years	'		'		'
Held to Maturity, Fair Value, 5 to 10 years	'		'		'
Held to Maturity, Amortized Cost	'		'		'
Held-To-Maturity, Fair value	'		'		'
State and political subdivisions	'		'		'
Available for Sale - Amortized Cost and Fair Value	'		'		'
Available for Sale, Amortized Cost, Within 1 year	6,330		'		'
Available for Sale, Fair Value, Within 1 year	6,427		'		'
Available for Sale, Amortized Cost, 1 to 5 years	10,414		'		'
Available for Sale, Fair Value, 1 to 5 years	10,863		'		'
Available for Sale, Amortized Cost, 5 to 10 years	2,094		'		'
Available for Sale, Fair Value, 5 to 10 years	2,130		'		'
Available for Sale, Amortized Cost, More than 10 years	848		'		'
Available for Sale, Fair Value, More than 10 years	901		'		'
Available for Sale, Amortized Cost	19,686		22,558		22,781
Available for Sale, Fair Value	20,321		23,242		23,524
Held to Maturity - Amortized Cost and Fair Value	'		'		'
Held to Maturity, Amortized Cost, Within 1 year	1,000		'		'
Held to Maturity, Fair Value, Within 1 year	1,023		'		'
Held to Maturity, Amortized Cost, 1 to 5 years	18,595		'		'
Held to Maturity, Fair Value, 1 to 5 years	19,949		'		'
Held to Maturity, Amortized Cost, 5 to 10 years	20,161		'		'
Held to Maturity, Fair Value, 5 to 10 years	21,726		'		'
Held to Maturity, Amortized Cost, More than 10 years	10,492		'		'
Held to Maturity, Fair Value, More than 10 years	11,399		'		'
Held to Maturity, Amortized Cost	50,248		'		'
Held-To-Maturity, Fair value	54,097		'		'
Corporate bonds	'		'		'
Available for Sale - Amortized Cost and Fair Value	'		'		'
Available for Sale, Amortized Cost, 1 to 5 years	48,756		'		'
Available for Sale, Fair Value, 1 to 5 years	48,189		'		'
Available for Sale, Amortized Cost, 5 to 10 years	115,802		'		'
Available for Sale, Fair Value, 5 to 10 years	116,763		'		'
Available for Sale, Amortized Cost, More than 10 years	1,000		'		'
Available for Sale, Fair Value, More than 10 years	300		'		'
Available for Sale, Amortized Cost	165,558		255,316		255,391
Available for Sale, Fair Value	165,252		250,296		246,951
Held to Maturity - Amortized Cost and Fair Value	'		'		'
Held to Maturity, Amortized Cost, 1 to 5 years	'		'		'
Held to Maturity, Fair Value, 1 to 5 years	'		'		'
Held to Maturity, Amortized Cost, 5 to 10 years	'		'		'
Held to Maturity, Fair Value, 5 to 10 years	'		'		'
Held to Maturity, Amortized Cost, More than 10 years	'		'		'
Held to Maturity, Fair Value, More than 10 years	'		'		'
Held to Maturity, Amortized Cost	'		'		'
Held-To-Maturity, Fair value	'		'		'
Asset-backed securities	'		'		'
Available for Sale - Amortized Cost and Fair Value	'		'		'
Available for Sale, Amortized Cost, Within 1 year	9,993		'		'
Available for Sale, Fair Value, Within 1 year	10,007		'		'
Available for Sale, Amortized Cost, 1 to 5 years	86,608		'		'
Available for Sale, Fair Value, 1 to 5 years	87,916		'		'
Available for Sale, Amortized Cost, 5 to 10 years	242,393		'		'
Available for Sale, Fair Value, 5 to 10 years	244,069		'		'
Available for Sale, Amortized Cost, More than 10 years	119,575		'		'
Available for Sale, Fair Value, More than 10 years	120,052		'		'
Available for Sale, Amortized Cost	458,569		409,086		306,961
Available for Sale, Fair Value	462,044		410,633		307,238
Held to Maturity - Amortized Cost and Fair Value	'		'		'
Held to Maturity, Amortized Cost, Within 1 year	'		'		'
Held to Maturity, Fair Value, Within 1 year	'		'		'
Held to Maturity, Amortized Cost, 1 to 5 years	'		'		'
Held to Maturity, Fair Value, 1 to 5 years	'		'		'
Held to Maturity, Amortized Cost, 5 to 10 years	'		'		'
Held to Maturity, Fair Value, 5 to 10 years	'		'		'
Held to Maturity, Amortized Cost, More than 10 years	'		'		'
Held to Maturity, Fair Value, More than 10 years	'		'		'
Held to Maturity, Amortized Cost	'		'		'
Held-To-Maturity, Fair value	'		'		'
Other	'		'		'
Available for Sale - Amortized Cost and Fair Value	'		'		'
Available for Sale, Amortized Cost, More than 10 years	2,036		'		'
Available for Sale, Fair Value, More than 10 years	2,036		'		'
Available for Sale, Amortized Cost	2,036		2,699		2,394
Available for Sale, Fair Value	2,036		2,699		2,394
Held to Maturity - Amortized Cost and Fair Value	'		'		'
Held to Maturity, Amortized Cost, More than 10 years	'		'		'
Held to Maturity, Fair Value, More than 10 years	'		'		'
Held to Maturity, Amortized Cost	'		'		'
Held-To-Maturity, Fair value	'		'		'
Total securities other than mortgage-backed securities	'		'		'
Available for Sale - Amortized Cost and Fair Value	'		'		'
Available for Sale, Amortized Cost, Within 1 year	16,323		'		'
Available for Sale, Fair Value, Within 1 year	16,434		'		'
Available for Sale, Amortized Cost, 1 to 5 years	231,981		'		'
Available for Sale, Fair Value, 1 to 5 years	232,809		'		'
Available for Sale, Amortized Cost, 5 to 10 years	379,471		'		'
Available for Sale, Fair Value, 5 to 10 years	382,143		'		'
Available for Sale, Amortized Cost, More than 10 years	123,459		'		'
Available for Sale, Fair Value, More than 10 years	123,289		'		'
Held to Maturity - Amortized Cost and Fair Value	'		'		'
Held to Maturity, Amortized Cost, Within 1 year	1,000		'		'
Held to Maturity, Fair Value, Within 1 year	1,023		'		'
Held to Maturity, Amortized Cost, 1 to 5 years	18,595		'		'
Held to Maturity, Fair Value, 1 to 5 years	19,949		'		'
Held to Maturity, Amortized Cost, 5 to 10 years	20,161		'		'
Held to Maturity, Fair Value, 5 to 10 years	21,726		'		'
Held to Maturity, Amortized Cost, More than 10 years	10,492		'		'
Held to Maturity, Fair Value, More than 10 years	11,399		'		'
Mortgage-backed securities	'		'		'
Available for Sale - Amortized Cost and Fair Value	'		'		'
Available for Sale, Amortized Cost	1,029,881	[1]	1,145,800	[1]	1,390,280	[1]
Available for Sale, Fair Value	1,034,992	[1]	1,145,347	[1]	1,383,317	[1]
Held to Maturity - Amortized Cost and Fair Value	'		'		'
Held to Maturity, Amortized Cost	382,170		'		'
Held-To-Maturity, Fair value	$386,214		'		'
[1]	All are residential type mortgage-backed securities

Securities_Summary_of_securiti

Securities - Summary of securities sales activity (Details 5) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Investment Securities [Abstract]	'	'	'	'
Proceeds from sales	$13,290	$5,000	$403,517	$20,751
Gross gains on sales	11	'	5,795	116
Gross losses on sales	'	'	-1,132	'
Net gains on sales of securities	11	'	4,663	116
Income tax expense attributable to sales	$4	'	$1,821	$45

Securities_Details_Textuals

Securities (Details Textuals) (USD $)	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2013
	Security
Investment Securities [Abstract]	'	'	'
Securities available for sale with a fair value transferred to held-to-maturity	'	$301,000,000	'
Unrealized loss on transferred securities	'	8,310,000	'
Number of available for sale securities in unrealized loss position	90	'	'
Number of held to maturity securities in unrealized loss position	25	'	'
Carrying value of secure public deposits, FHLB advances and other secured borrowings	$1,380,000,000	$1,530,000,000	$1,340,000,000

Loans_and_Allowance_for_Loan_L2

Loans and Allowance for Loan Losses - Major classifications of loans (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2013
In Thousands, unless otherwise specified
Classifications of loans	'	'	'
Total loans	$4,568,886	$4,329,266	$4,267,067
Less allowance for loan losses	-71,928	-76,762	-80,372
Loans, net	4,496,958	4,252,504	4,186,695
Loans Receivable	'	'	'
Classifications of loans	'	'	'
Total loans	4,568,886	4,329,266	4,267,067
Less allowance for loan losses	-71,928	-76,762	-80,372
Loans, net	4,496,958	4,252,504	4,186,695
Loans Receivable | Owner occupied commercial real estate	'	'	'
Classifications of loans	'	'	'
Total loans	1,153,933	1,133,543	1,129,152
Loans Receivable | Income producing commercial real estate	'	'	'
Classifications of loans	'	'	'
Total loans	604,727	623,167	613,619
Loans Receivable | Commercial & industrial	'	'	'
Classifications of loans	'	'	'
Total loans	649,853	471,961	457,414
Loans Receivable | Commercial construction	'	'	'
Classifications of loans	'	'	'
Total loans	180,794	148,903	137,146
Loans Receivable | Commercial	'	'	'
Classifications of loans	'	'	'
Total loans	2,589,307	2,377,574	2,337,331
Loans Receivable | Residential mortgage	'	'	'
Classifications of loans	'	'	'
Total loans	865,568	875,077	888,679
Loans Receivable | Home equity lines of credit	'	'	'
Classifications of loans	'	'	'
Total loans	458,819	440,887	420,616
Loans Receivable | Residential construction	'	'	'
Classifications of loans	'	'	'
Total loans	307,178	328,579	317,789
Loans Receivable | Consumer installment	'	'	'
Classifications of loans	'	'	'
Total loans	105,345	111,045	116,535
Loans Receivable | Indirect auto	'	'	'
Classifications of loans	'	'	'
Total loans	$242,669	$196,104	$186,117

Loans_and_Allowance_for_Loan_L3

Loans and Allowance for Loan Losses - Balance and activity in allowance for loan losses by portfolio segment and recorded investment in loans by portfolio segment (Details 1) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Financing Receivable, Allowance for Credit Losses [Roll Forward]	'	'	'	'
Beginning Balance	$75,413	$81,845	$78,927	$107,137
Charge-Offs	-4,706	-5,709	-18,490	-93,866
Recoveries	1,551	1,236	7,121	4,601
Allocation of Unallocated	'	'	'	'
Provision	2,000	3,000	6,700	62,500
Ending Balance	74,258	80,372	74,258	80,372
Loans Receivable	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Roll Forward]	'	'	'	'
Beginning Balance	73,248	81,845	76,762	107,137
Charge-Offs	-4,706	-5,709	-18,490	-93,866
Recoveries	1,551	1,236	7,121	4,601
Allocation of Unallocated	'	'	'	'
Provision	1,835	3,000	6,535	62,500
Ending Balance	71,928	80,372	71,928	80,372
Loans Receivable | Owner occupied commercial real estate	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Roll Forward]	'	'	'	'
Beginning Balance	17,804	15,785	17,164	17,265
Charge-Offs	-832	-1,712	-2,116	-23,444
Recoveries	86	71	2,929	1,296
Allocation of Unallocated	'	'	1,278	'
Provision	-1,758	-78	-3,955	18,949
Ending Balance	15,300	14,066	15,300	14,066
Loans Receivable | Income producing commercial real estate	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Roll Forward]	'	'	'	'
Beginning Balance	11,761	7,023	7,174	10,582
Charge-Offs	-598	-216	-1,435	-10,678
Recoveries	494	'	691	260
Allocation of Unallocated	'	'	688	'
Provision	-866	3,262	3,673	9,905
Ending Balance	10,791	10,069	10,791	10,069
Loans Receivable | Commercial & industrial	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Roll Forward]	'	'	'	'
Beginning Balance	3,885	8,054	6,527	5,537
Charge-Offs	-30	-826	-2,005	-18,581
Recoveries	372	690	1,263	1,368
Allocation of Unallocated	'	'	318	'
Provision	-1,009	14	-2,885	19,608
Ending Balance	3,218	7,932	3,218	7,932
Loans Receivable | Commercial construction	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Roll Forward]	'	'	'	'
Beginning Balance	4,067	4,275	3,669	8,389
Charge-Offs	-104	-134	-236	-6,484
Recoveries	1	1	1	60
Allocation of Unallocated	'	'	388	'
Provision	1,686	-324	1,828	1,853
Ending Balance	5,650	3,818	5,650	3,818
Loans Receivable | Residential mortgage	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Roll Forward]	'	'	'	'
Beginning Balance	16,763	14,498	15,446	19,117
Charge-Offs	-1,357	-918	-5,738	-8,272
Recoveries	240	229	597	479
Allocation of Unallocated	'	'	1,452	'
Provision	1,940	1,335	5,829	3,820
Ending Balance	17,586	15,144	17,586	15,144
Loans Receivable | Home equity lines of credit	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Roll Forward]	'	'	'	'
Beginning Balance	6,338	5,529	5,528	7,525
Charge-Offs	-405	-388	-2,032	-2,108
Recoveries	50	2	218	170
Allocation of Unallocated	'	'	391	'
Provision	-1,144	415	734	-29
Ending Balance	4,839	5,558	4,839	5,558
Loans Receivable | Residential construction	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Roll Forward]	'	'	'	'
Beginning Balance	11,208	17,322	12,532	26,662
Charge-Offs	-753	-1,096	-3,004	-22,608
Recoveries	41	24	410	57
Allocation of Unallocated	'	'	1,728	'
Provision	2,358	-1,908	1,188	10,231
Ending Balance	12,854	14,342	12,854	14,342
Loans Receivable | Consumer installment	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Roll Forward]	'	'	'	'
Beginning Balance	599	1,515	1,353	2,527
Charge-Offs	-449	-345	-1,580	-1,521
Recoveries	256	210	974	891
Allocation of Unallocated	'	'	'	'
Provision	333	-31	-8	-548
Ending Balance	739	1,349	739	1,349
Loans Receivable | Indirect auto	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Roll Forward]	'	'	'	'
Beginning Balance	823	875	1,126	220
Charge-Offs	-178	-74	-344	-170
Recoveries	11	9	38	20
Allocation of Unallocated	'	'	'	'
Provision	295	258	131	998
Ending Balance	951	1,068	951	1,068
Loans Receivable | Unallocated	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Roll Forward]	'	'	'	'
Beginning Balance	'	6,969	6,243	9,313
Charge-Offs	'	'	'	'
Recoveries	'	'	'	'
Allocation of Unallocated	'	'	-6,243	'
Provision	'	57	'	-2,287
Ending Balance	'	7,026	'	7,026
Loans Receivable | Allowance for unfunded commitments	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Roll Forward]	'	'	'	'
Beginning Balance	2,165	'	2,165	'
Charge-Offs	'	'	'	'
Recoveries	'	'	'	'
Allocation of Unallocated	'	'	'	'
Provision	165	'	165	'
Ending Balance	$2,330	'	$2,330	'

Loans_and_Allowance_for_Loan_L4

Loans and Allowance for Loan Losses - Recorded investment in loans by portfolio segment and the balance of the allowance for loan losses (Details 2) (USD $)	Sep. 30, 2014	Jun. 30, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Financing Receivable, Allowance For Credit Losses [Line Items]	'	'	'	'	'	'
Allowance for Loan Losses, Individually evaluated for impairment	$10,307	'	$6,022	$5,352	'	'
Allowance for Loan Losses,Collectively evaluated for impairment	63,951	'	72,905	75,020	'	'
Allowance for Loan Losses, Ending balance	74,258	75,413	78,927	80,372	81,845	107,137
Loans Outstanding, Individually evaluated for impairment	109,031	'	114,619	105,341	'	'
Loans Outstanding, Collectively evaluated for impairment	4,459,855	'	4,214,647	4,161,726	'	'
Loans Outstanding, Ending Balance	4,568,886	'	4,329,266	4,267,067	'	'
Loans Receivable	'	'	'	'	'	'
Financing Receivable, Allowance For Credit Losses [Line Items]	'	'	'	'	'	'
Allowance for Loan Losses, Individually evaluated for impairment	10,307	'	6,022	5,352	'	'
Allowance for Loan Losses,Collectively evaluated for impairment	61,621	'	70,740	75,020	'	'
Allowance for Loan Losses, Ending balance	71,928	73,248	76,762	80,372	81,845	107,137
Loans Outstanding, Individually evaluated for impairment	109,031	'	114,619	105,341	'	'
Loans Outstanding, Collectively evaluated for impairment	4,459,855	'	4,214,647	4,161,726	'	'
Loans Outstanding, Ending Balance	4,568,886	'	4,329,266	4,267,067	'	'
Loans Receivable | Owner occupied commercial real estate	'	'	'	'	'	'
Financing Receivable, Allowance For Credit Losses [Line Items]	'	'	'	'	'	'
Allowance for Loan Losses, Individually evaluated for impairment	2,125	'	1,023	770	'	'
Allowance for Loan Losses,Collectively evaluated for impairment	13,175	'	16,141	13,296	'	'
Allowance for Loan Losses, Ending balance	15,300	17,804	17,164	14,066	15,785	17,265
Loans Outstanding, Individually evaluated for impairment	33,635	'	32,969	31,138	'	'
Loans Outstanding, Collectively evaluated for impairment	1,120,298	'	1,100,574	1,098,014	'	'
Loans Outstanding, Ending Balance	1,153,933	'	1,133,543	1,129,152	'	'
Loans Receivable | Income producing commercial real estate	'	'	'	'	'	'
Financing Receivable, Allowance For Credit Losses [Line Items]	'	'	'	'	'	'
Allowance for Loan Losses, Individually evaluated for impairment	2,380	'	990	1,205	'	'
Allowance for Loan Losses,Collectively evaluated for impairment	8,411	'	6,184	8,864	'	'
Allowance for Loan Losses, Ending balance	10,791	11,761	7,174	10,069	7,023	10,582
Loans Outstanding, Individually evaluated for impairment	26,120	'	27,239	23,325	'	'
Loans Outstanding, Collectively evaluated for impairment	578,607	'	595,928	590,294	'	'
Loans Outstanding, Ending Balance	604,727	'	623,167	613,619	'	'
Loans Receivable | Commercial & industrial	'	'	'	'	'	'
Financing Receivable, Allowance For Credit Losses [Line Items]	'	'	'	'	'	'
Allowance for Loan Losses, Individually evaluated for impairment	26	'	66	546	'	'
Allowance for Loan Losses,Collectively evaluated for impairment	3,192	'	6,461	7,386	'	'
Allowance for Loan Losses, Ending balance	3,218	3,885	6,527	7,932	8,054	5,537
Loans Outstanding, Individually evaluated for impairment	4,540	'	4,217	4,105	'	'
Loans Outstanding, Collectively evaluated for impairment	645,313	'	467,744	453,309	'	'
Loans Outstanding, Ending Balance	649,853	'	471,961	457,414	'	'
Loans Receivable | Commercial construction	'	'	'	'	'	'
Financing Receivable, Allowance For Credit Losses [Line Items]	'	'	'	'	'	'
Allowance for Loan Losses, Individually evaluated for impairment	1,164	'	112	150	'	'
Allowance for Loan Losses,Collectively evaluated for impairment	4,486	'	3,557	3,668	'	'
Allowance for Loan Losses, Ending balance	5,650	4,067	3,669	3,818	4,275	8,389
Loans Outstanding, Individually evaluated for impairment	12,127	'	13,715	13,478	'	'
Loans Outstanding, Collectively evaluated for impairment	168,667	'	135,188	123,668	'	'
Loans Outstanding, Ending Balance	180,794	'	148,903	137,146	'	'
Loans Receivable | Residential mortgage	'	'	'	'	'	'
Financing Receivable, Allowance For Credit Losses [Line Items]	'	'	'	'	'	'
Allowance for Loan Losses, Individually evaluated for impairment	3,501	'	2,914	2,008	'	'
Allowance for Loan Losses,Collectively evaluated for impairment	14,085	'	12,532	13,136	'	'
Allowance for Loan Losses, Ending balance	17,586	16,763	15,446	15,144	14,498	19,117
Loans Outstanding, Individually evaluated for impairment	18,778	'	20,167	18,970	'	'
Loans Outstanding, Collectively evaluated for impairment	846,790	'	854,910	869,709	'	'
Loans Outstanding, Ending Balance	865,568	'	875,077	888,679	'	'
Loans Receivable | Home equity lines of credit	'	'	'	'	'	'
Financing Receivable, Allowance For Credit Losses [Line Items]	'	'	'	'	'	'
Allowance for Loan Losses, Individually evaluated for impairment	51	'	5	'	'	'
Allowance for Loan Losses,Collectively evaluated for impairment	4,788	'	5,523	5,558	'	'
Allowance for Loan Losses, Ending balance	4,839	6,338	5,528	5,558	5,529	7,525
Loans Outstanding, Individually evaluated for impairment	531	'	505	'	'	'
Loans Outstanding, Collectively evaluated for impairment	458,288	'	440,382	420,616	'	'
Loans Outstanding, Ending Balance	458,819	'	440,887	420,616	'	'
Loans Receivable | Residential construction	'	'	'	'	'	'
Financing Receivable, Allowance For Credit Losses [Line Items]	'	'	'	'	'	'
Allowance for Loan Losses, Individually evaluated for impairment	1,037	'	688	662	'	'
Allowance for Loan Losses,Collectively evaluated for impairment	11,817	'	11,844	13,680	'	'
Allowance for Loan Losses, Ending balance	12,854	11,208	12,532	14,342	17,322	26,662
Loans Outstanding, Individually evaluated for impairment	13,055	'	14,808	14,121	'	'
Loans Outstanding, Collectively evaluated for impairment	294,123	'	313,771	303,668	'	'
Loans Outstanding, Ending Balance	307,178	'	328,579	317,789	'	'
Loans Receivable | Consumer installment	'	'	'	'	'	'
Financing Receivable, Allowance For Credit Losses [Line Items]	'	'	'	'	'	'
Allowance for Loan Losses, Individually evaluated for impairment	23	'	224	11	'	'
Allowance for Loan Losses,Collectively evaluated for impairment	716	'	1,129	1,338	'	'
Allowance for Loan Losses, Ending balance	739	599	1,353	1,349	1,515	2,527
Loans Outstanding, Individually evaluated for impairment	245	'	999	204	'	'
Loans Outstanding, Collectively evaluated for impairment	105,100	'	110,046	116,331	'	'
Loans Outstanding, Ending Balance	105,345	'	111,045	116,535	'	'
Loans Receivable | Indirect auto	'	'	'	'	'	'
Financing Receivable, Allowance For Credit Losses [Line Items]	'	'	'	'	'	'
Allowance for Loan Losses, Individually evaluated for impairment	'	'	'	'	'	'
Allowance for Loan Losses,Collectively evaluated for impairment	951	'	1,126	1,068	'	'
Allowance for Loan Losses, Ending balance	951	823	1,126	1,068	875	220
Loans Outstanding, Individually evaluated for impairment	'	'	'	'	'	'
Loans Outstanding, Collectively evaluated for impairment	242,669	'	196,104	186,117	'	'
Loans Outstanding, Ending Balance	242,669	'	196,104	186,117	'	'
Loans Receivable | Unallocated	'	'	'	'	'	'
Financing Receivable, Allowance For Credit Losses [Line Items]	'	'	'	'	'	'
Allowance for Loan Losses, Individually evaluated for impairment	'	'	'	'	'	'
Allowance for Loan Losses,Collectively evaluated for impairment	'	'	6,243	7,026	'	'
Allowance for Loan Losses, Ending balance	'	'	6,243	7,026	6,969	9,313
Loans Receivable | Allowance for unfunded commitments	'	'	'	'	'	'
Financing Receivable, Allowance For Credit Losses [Line Items]	'	'	'	'	'	'
Allowance for Loan Losses, Individually evaluated for impairment	'	'	'	'	'	'
Allowance for Loan Losses,Collectively evaluated for impairment	2,330	'	2,165	'	'	'
Allowance for Loan Losses, Ending balance	$2,330	$2,165	$2,165	'	'	'

Loans_and_Allowance_for_Loan_L5

Loans and Allowance for Loan Losses - Loans individually evaluated for impairment by class of loans (Details 3) (USD $)	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2013
In Thousands, unless otherwise specified
Loans individually evaluated for impairment by class of loans	'	'	'
Allowance for Loan Losses, Individually evaluated for impairment	$10,307	$6,022	$5,352
Loans Receivable	'	'	'
Loans individually evaluated for impairment by class of loans	'	'	'
Unpaid Principal Balance, With no related allowance recorded	30,199	47,545	40,297
Recorded Investment, With no related allowance recorded	26,928	38,872	32,839
Unpaid Principal Balance, With an allowance recorded	85,746	78,246	75,684
Recorded Investment, With allowance recorded	82,103	75,747	72,502
Unpaid Principal Balance	115,945	125,791	115,981
Recorded Investment	109,031	114,619	105,341
Allowance for loan losses allocated with allowance	10,307	6,022	5,352
Allowance for Loan Losses, Individually evaluated for impairment	10,307	6,022	5,352
Loans Receivable | Owner occupied commercial real estate	'	'	'
Loans individually evaluated for impairment by class of loans	'	'	'
Unpaid Principal Balance, With no related allowance recorded	11,370	17,717	18,423
Recorded Investment, With no related allowance recorded	10,370	14,458	15,059
Unpaid Principal Balance, With an allowance recorded	24,828	18,595	16,163
Recorded Investment, With allowance recorded	23,265	18,513	16,079
Allowance for loan losses allocated with allowance	2,125	1,023	770
Allowance for Loan Losses, Individually evaluated for impairment	2,125	1,023	770
Loans Receivable | Income producing commercial real estate	'	'	'
Loans individually evaluated for impairment by class of loans	'	'	'
Unpaid Principal Balance, With no related allowance recorded	9,872	12,644	6,643
Recorded Investment, With no related allowance recorded	9,872	9,747	5,325
Unpaid Principal Balance, With an allowance recorded	16,797	17,490	20,020
Recorded Investment, With allowance recorded	16,248	17,490	18,000
Allowance for loan losses allocated with allowance	2,380	990	1,205
Allowance for Loan Losses, Individually evaluated for impairment	2,380	990	1,205
Loans Receivable | Commercial & industrial	'	'	'
Loans individually evaluated for impairment by class of loans	'	'	'
Unpaid Principal Balance, With no related allowance recorded	2,178	2,252	235
Recorded Investment, With no related allowance recorded	1,560	2,252	235
Unpaid Principal Balance, With an allowance recorded	2,980	2,248	4,002
Recorded Investment, With allowance recorded	2,980	1,965	3,870
Allowance for loan losses allocated with allowance	26	66	546
Allowance for Loan Losses, Individually evaluated for impairment	26	66	546
Loans Receivable | Commercial construction	'	'	'
Loans individually evaluated for impairment by class of loans	'	'	'
Unpaid Principal Balance, With no related allowance recorded	'	974	1,127
Recorded Investment, With no related allowance recorded	'	974	1,127
Unpaid Principal Balance, With an allowance recorded	12,281	12,821	12,430
Recorded Investment, With allowance recorded	12,127	12,741	12,351
Allowance for loan losses allocated with allowance	1,164	112	150
Allowance for Loan Losses, Individually evaluated for impairment	1,164	112	150
Loans Receivable | Commercial	'	'	'
Loans individually evaluated for impairment by class of loans	'	'	'
Unpaid Principal Balance, With no related allowance recorded	23,420	33,587	26,428
Recorded Investment, With no related allowance recorded	21,802	27,431	21,746
Unpaid Principal Balance, With an allowance recorded	56,886	51,154	52,615
Recorded Investment, With allowance recorded	54,620	50,709	50,300
Allowance for loan losses allocated with allowance	5,695	2,191	2,671
Allowance for Loan Losses, Individually evaluated for impairment	10,307	6,022	'
Loans Receivable | Residential mortgage	'	'	'
Loans individually evaluated for impairment by class of loans	'	'	'
Unpaid Principal Balance, With no related allowance recorded	1,319	4,496	4,768
Recorded Investment, With no related allowance recorded	954	3,634	3,729
Unpaid Principal Balance, With an allowance recorded	18,657	17,119	15,598
Recorded Investment, With allowance recorded	17,824	16,533	15,241
Allowance for loan losses allocated with allowance	3,501	2,914	2,008
Allowance for Loan Losses, Individually evaluated for impairment	3,501	2,914	2,008
Loans Receivable | Home equity lines of credit	'	'	'
Loans individually evaluated for impairment by class of loans	'	'	'
Unpaid Principal Balance, With no related allowance recorded	'	'	'
Recorded Investment, With no related allowance recorded	'	'	'
Unpaid Principal Balance, With an allowance recorded	531	505	'
Recorded Investment, With allowance recorded	531	505	'
Allowance for loan losses allocated with allowance	51	5	'
Allowance for Loan Losses, Individually evaluated for impairment	51	5	'
Loans Receivable | Residential construction	'	'	'
Loans individually evaluated for impairment by class of loans	'	'	'
Unpaid Principal Balance, With no related allowance recorded	5,460	9,462	9,101
Recorded Investment, With no related allowance recorded	4,172	7,807	7,364
Unpaid Principal Balance, With an allowance recorded	9,427	8,469	7,257
Recorded Investment, With allowance recorded	8,883	7,001	6,757
Allowance for loan losses allocated with allowance	1,037	688	662
Allowance for Loan Losses, Individually evaluated for impairment	1,037	688	662
Loans Receivable | Consumer installment	'	'	'
Loans individually evaluated for impairment by class of loans	'	'	'
Unpaid Principal Balance, With no related allowance recorded	'	'	'
Recorded Investment, With no related allowance recorded	'	'	'
Unpaid Principal Balance, With an allowance recorded	245	999	214
Recorded Investment, With allowance recorded	245	999	204
Allowance for loan losses allocated with allowance	23	224	11
Allowance for Loan Losses, Individually evaluated for impairment	23	224	11
Loans Receivable | Indirect auto	'	'	'
Loans individually evaluated for impairment by class of loans	'	'	'
Unpaid Principal Balance, With no related allowance recorded	'	'	'
Recorded Investment, With no related allowance recorded	'	'	'
Unpaid Principal Balance, With an allowance recorded	'	'	'
Recorded Investment, With allowance recorded	'	'	'
Allowance for loan losses allocated with allowance	'	'	'
Allowance for Loan Losses, Individually evaluated for impairment	'	'	'

Loans_and_Allowance_for_Loan_L6

Loans and Allowance for Loan Losses - Average balances of impaired loans and income recognized on impaired loans (Details 4) (Loans Receivable, USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Average balances of impaired loans and income recognized on impaired loans	'	'	'	'
Average Balance	$110,408	$106,413	$108,734	$133,854
Interest Revenue Recognized During Impairment	1,272	2,483	3,770	5,504
Cash Basis Interest Revenue Received	1,325	2,571	3,895	6,283
Owner occupied commercial real estate	'	'	'	'
Average balances of impaired loans and income recognized on impaired loans	'	'	'	'
Average Balance	33,715	31,695	31,460	37,732
Interest Revenue Recognized During Impairment	430	737	1,191	1,836
Cash Basis Interest Revenue Received	448	861	1,219	2,049
Income producing commercial real estate	'	'	'	'
Average balances of impaired loans and income recognized on impaired loans	'	'	'	'
Average Balance	26,622	23,608	26,299	38,328
Interest Revenue Recognized During Impairment	325	599	953	1,077
Cash Basis Interest Revenue Received	341	600	991	1,077
Commercial & industrial	'	'	'	'
Average balances of impaired loans and income recognized on impaired loans	'	'	'	'
Average Balance	4,698	4,189	4,314	8,821
Interest Revenue Recognized During Impairment	43	114	135	333
Cash Basis Interest Revenue Received	85	104	186	803
Commercial construction	'	'	'	'
Average balances of impaired loans and income recognized on impaired loans	'	'	'	'
Average Balance	12,203	13,501	12,086	14,620
Interest Revenue Recognized During Impairment	119	244	335	509
Cash Basis Interest Revenue Received	96	246	338	593
Commercial	'	'	'	'
Average balances of impaired loans and income recognized on impaired loans	'	'	'	'
Average Balance	77,238	72,993	74,159	99,501
Interest Revenue Recognized During Impairment	917	1,694	2,614	3,755
Cash Basis Interest Revenue Received	970	1,811	2,734	4,522
Residential mortgage	'	'	'	'
Average balances of impaired loans and income recognized on impaired loans	'	'	'	'
Average Balance	19,235	18,548	20,384	19,382
Interest Revenue Recognized During Impairment	215	425	672	860
Cash Basis Interest Revenue Received	215	435	670	841
Home equity lines of credit	'	'	'	'
Average balances of impaired loans and income recognized on impaired loans	'	'	'	'
Average Balance	538	522	531	524
Interest Revenue Recognized During Impairment	6	11	16	22
Cash Basis Interest Revenue Received	5	11	17	21
Residential construction	'	'	'	'
Average balances of impaired loans and income recognized on impaired loans	'	'	'	'
Average Balance	13,146	14,136	13,315	14,219
Interest Revenue Recognized During Impairment	130	346	452	850
Cash Basis Interest Revenue Received	130	307	455	882
Consumer installment	'	'	'	'
Average balances of impaired loans and income recognized on impaired loans	'	'	'	'
Average Balance	251	214	345	228
Interest Revenue Recognized During Impairment	4	7	16	17
Cash Basis Interest Revenue Received	5	7	19	17
Indirect auto	'	'	'	'
Average balances of impaired loans and income recognized on impaired loans	'	'	'	'
Average Balance	'	'	'	'
Interest Revenue Recognized During Impairment	'	'	'	'
Cash Basis Interest Revenue Received	'	'	'	'

Loans_and_Allowance_for_Loan_L7

Loans and Allowance for Loan Losses - Aging of recorded investment in past due loans (Details 5) (USD $)	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2013
In Thousands, unless otherwise specified
Aging of the recorded investment in past due loans	'	'	'
Loans Outstanding, Ending Balance	$4,568,886	$4,329,266	$4,267,067
Loans Receivable	'	'	'
Aging of the recorded investment in past due loans	'	'	'
Loans Past Due, 30 - 59 Days	15,295	21,812	16,212
Loans Past Due, 60 - 89 Days	5,776	7,483	5,072
Loans Past Due, Greater than 90 Days Past Due	8,166	9,392	8,482
Loans, Total Past Due	29,237	38,687	29,766
Loans Not Past Due	4,539,649	4,290,579	4,237,301
Loans Outstanding, Ending Balance	4,568,886	4,329,266	4,267,067
Loans Receivable | Owner occupied commercial real estate	'	'	'
Aging of the recorded investment in past due loans	'	'	'
Loans Past Due, 30 - 59 Days	2,769	1,845	1,332
Loans Past Due, 60 - 89 Days	257	705	910
Loans Past Due, Greater than 90 Days Past Due	947	2,017	1,896
Loans, Total Past Due	3,973	4,567	4,138
Loans Not Past Due	1,149,960	1,128,976	1,125,014
Loans Outstanding, Ending Balance	1,153,933	1,133,543	1,129,152
Loans Receivable | Income producing commercial real estate	'	'	'
Aging of the recorded investment in past due loans	'	'	'
Loans Past Due, 30 - 59 Days	417	3,879	694
Loans Past Due, 60 - 89 Days	991	2,092	373
Loans Past Due, Greater than 90 Days Past Due	226	530	533
Loans, Total Past Due	1,634	6,501	1,600
Loans Not Past Due	603,093	616,666	612,019
Loans Outstanding, Ending Balance	604,727	623,167	613,619
Loans Receivable | Commercial & industrial	'	'	'
Aging of the recorded investment in past due loans	'	'	'
Loans Past Due, 30 - 59 Days	900	2,349	763
Loans Past Due, 60 - 89 Days	103	223	191
Loans Past Due, Greater than 90 Days Past Due	861	88	93
Loans, Total Past Due	1,864	2,660	1,047
Loans Not Past Due	647,989	469,301	456,367
Loans Outstanding, Ending Balance	649,853	471,961	457,414
Loans Receivable | Commercial construction	'	'	'
Aging of the recorded investment in past due loans	'	'	'
Loans Past Due, 30 - 59 Days	123	94	16
Loans Past Due, 60 - 89 Days	182	190	'
Loans Past Due, Greater than 90 Days Past Due	'	235	235
Loans, Total Past Due	305	519	251
Loans Not Past Due	180,489	148,384	136,895
Loans Outstanding, Ending Balance	180,794	148,903	137,146
Loans Receivable | Commercial	'	'	'
Aging of the recorded investment in past due loans	'	'	'
Loans Past Due, 30 - 59 Days	4,209	8,167	2,805
Loans Past Due, 60 - 89 Days	1,533	3,210	1,474
Loans Past Due, Greater than 90 Days Past Due	2,034	2,870	2,757
Loans, Total Past Due	7,776	14,247	7,036
Loans Not Past Due	2,581,531	2,363,327	2,330,295
Loans Outstanding, Ending Balance	2,589,307	2,377,574	2,337,331
Loans Receivable | Residential mortgage	'	'	'
Aging of the recorded investment in past due loans	'	'	'
Loans Past Due, 30 - 59 Days	6,985	9,011	7,672
Loans Past Due, 60 - 89 Days	3,136	2,832	2,467
Loans Past Due, Greater than 90 Days Past Due	2,563	4,140	4,279
Loans, Total Past Due	12,684	15,983	14,418
Loans Not Past Due	852,884	859,094	874,261
Loans Outstanding, Ending Balance	865,568	875,077	888,679
Loans Receivable | Home equity lines of credit	'	'	'
Aging of the recorded investment in past due loans	'	'	'
Loans Past Due, 30 - 59 Days	1,566	2,056	1,177
Loans Past Due, 60 - 89 Days	373	430	610
Loans Past Due, Greater than 90 Days Past Due	375	941	373
Loans, Total Past Due	2,314	3,427	2,160
Loans Not Past Due	456,505	437,460	418,456
Loans Outstanding, Ending Balance	458,819	440,887	420,616
Loans Receivable | Residential construction	'	'	'
Aging of the recorded investment in past due loans	'	'	'
Loans Past Due, 30 - 59 Days	1,262	1,335	3,705
Loans Past Due, 60 - 89 Days	329	588	418
Loans Past Due, Greater than 90 Days Past Due	2,803	1,375	924
Loans, Total Past Due	4,394	3,298	5,047
Loans Not Past Due	302,784	325,281	312,742
Loans Outstanding, Ending Balance	307,178	328,579	317,789
Loans Receivable | Consumer installment	'	'	'
Aging of the recorded investment in past due loans	'	'	'
Loans Past Due, 30 - 59 Days	995	1,058	633
Loans Past Due, 60 - 89 Days	322	358	19
Loans Past Due, Greater than 90 Days Past Due	191	24	94
Loans, Total Past Due	1,508	1,440	746
Loans Not Past Due	103,837	109,605	115,789
Loans Outstanding, Ending Balance	105,345	111,045	116,535
Loans Receivable | Indirect auto	'	'	'
Aging of the recorded investment in past due loans	'	'	'
Loans Past Due, 30 - 59 Days	278	185	220
Loans Past Due, 60 - 89 Days	83	65	84
Loans Past Due, Greater than 90 Days Past Due	200	42	55
Loans, Total Past Due	561	292	359
Loans Not Past Due	242,108	195,812	185,758
Loans Outstanding, Ending Balance	$242,669	$196,104	$186,117

Loans_and_Allowance_for_Loan_L8

Loans and Allowance for Loan Losses - TDRs and pre and post-modification recorded investment (Details 6) (Loans Receivable, USD $)	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2013
In Thousands, unless otherwise specified	Contract	Contract	Contract
Additional information on troubled debt restructurings	'	'	'
Number of Contracts	365	345	334
Pre-Modification Outstanding Recorded Investment	$92,889	$94,897	$95,524
Post-Modification Outstanding Recorded Investment	88,593	86,966	87,330
Owner occupied commercial real estate	'	'	'
Additional information on troubled debt restructurings	'	'	'
Number of Contracts	52	45	45
Pre-Modification Outstanding Recorded Investment	27,811	24,064	25,829
Post-Modification Outstanding Recorded Investment	26,248	22,399	24,368
Income producing commercial real estate	'	'	'
Additional information on troubled debt restructurings	'	'	'
Number of Contracts	32	32	32
Pre-Modification Outstanding Recorded Investment	19,652	20,900	22,134
Post-Modification Outstanding Recorded Investment	19,104	18,268	18,795
Commercial & industrial	'	'	'
Additional information on troubled debt restructurings	'	'	'
Number of Contracts	33	36	34
Pre-Modification Outstanding Recorded Investment	2,941	3,527	3,051
Post-Modification Outstanding Recorded Investment	2,941	3,245	2,919
Commercial construction	'	'	'
Additional information on troubled debt restructurings	'	'	'
Number of Contracts	14	13	12
Pre-Modification Outstanding Recorded Investment	11,238	13,122	12,904
Post-Modification Outstanding Recorded Investment	11,084	13,042	12,825
Commercial	'	'	'
Additional information on troubled debt restructurings	'	'	'
Number of Contracts	131	126	123
Pre-Modification Outstanding Recorded Investment	61,642	61,613	63,918
Post-Modification Outstanding Recorded Investment	59,377	56,954	58,907
Residential mortgage	'	'	'
Additional information on troubled debt restructurings	'	'	'
Number of Contracts	160	133	115
Pre-Modification Outstanding Recorded Investment	19,555	20,117	18,511
Post-Modification Outstanding Recorded Investment	18,356	18,852	17,408
Home equity lines of credit	'	'	'
Additional information on troubled debt restructurings	'	'	'
Number of Contracts	4	3	5
Pre-Modification Outstanding Recorded Investment	531	505	521
Post-Modification Outstanding Recorded Investment	531	505	521
Residential construction	'	'	'
Additional information on troubled debt restructurings	'	'	'
Number of Contracts	50	57	55
Pre-Modification Outstanding Recorded Investment	10,916	12,459	12,360
Post-Modification Outstanding Recorded Investment	10,084	10,452	10,290
Consumer installment	'	'	'
Additional information on troubled debt restructurings	'	'	'
Number of Contracts	20	26	36
Pre-Modification Outstanding Recorded Investment	245	203	214
Post-Modification Outstanding Recorded Investment	245	203	204
Indirect auto	'	'	'
Additional information on troubled debt restructurings	'	'	'
Number of Contracts	'	'	'
Pre-Modification Outstanding Recorded Investment	'	'	'
Post-Modification Outstanding Recorded Investment	'	'	'

Loans_and_Allowance_for_Loan_L9

Loans and Allowance for Loan Losses - Loans modified under terms of TDR (Details 7) (Loans Receivable, USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
	Contract	Contract	Contract	Contract
Financing Receivable, Modifications [Line Items]	'	'	'	'
Number of Contracts	18	22	68	72
Pre-Modification Outstanding Recorded Investment	$1,977	$5,008	$11,694	$19,822
Post Modification Outstanding Recorded Investment	1,872	3,750	11,548	18,185
Number of Contracts	2	4	11	15
Recorded Investment	139	956	1,029	3,122
Owner occupied commercial real estate	'	'	'	'
Financing Receivable, Modifications [Line Items]	'	'	'	'
Number of Contracts	2	1	9	11
Pre-Modification Outstanding Recorded Investment	747	1,841	4,139	5,923
Post Modification Outstanding Recorded Investment	747	741	4,139	4,823
Number of Contracts	'	'	1	1
Recorded Investment	'	'	104	432
Income producing commercial real estate	'	'	'	'
Financing Receivable, Modifications [Line Items]	'	'	'	'
Number of Contracts	'	'	5	7
Pre-Modification Outstanding Recorded Investment	'	'	1,992	6,009
Post Modification Outstanding Recorded Investment	'	'	1,992	6,009
Number of Contracts	'	'	'	'
Recorded Investment	'	'	'	'
Commercial & industrial	'	'	'	'
Financing Receivable, Modifications [Line Items]	'	'	'	'
Number of Contracts	6	1	10	10
Pre-Modification Outstanding Recorded Investment	452	68	782	883
Post Modification Outstanding Recorded Investment	452	68	782	777
Number of Contracts	'	'	2	1
Recorded Investment	'	'	54	35
Commercial construction	'	'	'	'
Financing Receivable, Modifications [Line Items]	'	'	'	'
Number of Contracts	'	'	2	'
Pre-Modification Outstanding Recorded Investment	'	'	471	'
Post Modification Outstanding Recorded Investment	'	'	471	'
Number of Contracts	'	'	'	2
Recorded Investment	'	'	'	1,454
Commercial	'	'	'	'
Financing Receivable, Modifications [Line Items]	'	'	'	'
Number of Contracts	8	2	26	28
Pre-Modification Outstanding Recorded Investment	1,199	1,909	7,384	12,815
Post Modification Outstanding Recorded Investment	1,199	809	7,384	11,609
Number of Contracts	'	'	3	4
Recorded Investment	'	'	158	1,921
Residential mortgage	'	'	'	'
Financing Receivable, Modifications [Line Items]	'	'	'	'
Number of Contracts	10	16	33	29
Pre-Modification Outstanding Recorded Investment	778	2,365	2,924	5,129
Post Modification Outstanding Recorded Investment	673	2,207	2,778	4,827
Number of Contracts	2	1	8	3
Recorded Investment	139	533	871	641
Home equity lines of credit	'	'	'	'
Financing Receivable, Modifications [Line Items]	'	'	'	'
Number of Contracts	'	'	1	'
Pre-Modification Outstanding Recorded Investment	'	'	36	'
Post Modification Outstanding Recorded Investment	'	'	36	'
Number of Contracts	'	'	'	'
Recorded Investment	'	'	'	'
Residential construction	'	'	'	'
Financing Receivable, Modifications [Line Items]	'	'	'	'
Number of Contracts	'	3	3	10
Pre-Modification Outstanding Recorded Investment	'	727	1,124	1,850
Post Modification Outstanding Recorded Investment	'	727	1,124	1,721
Number of Contracts	'	1	'	3
Recorded Investment	'	414	'	531
Consumer installment	'	'	'	'
Financing Receivable, Modifications [Line Items]	'	'	'	'
Number of Contracts	'	1	5	5
Pre-Modification Outstanding Recorded Investment	'	7	226	28
Post Modification Outstanding Recorded Investment	'	7	226	28
Number of Contracts	'	2	'	5
Recorded Investment	'	9	'	29
Indirect auto	'	'	'	'
Financing Receivable, Modifications [Line Items]	'	'	'	'
Number of Contracts	'	'	'	'
Pre-Modification Outstanding Recorded Investment	'	'	'	'
Post Modification Outstanding Recorded Investment	'	'	'	'
Number of Contracts	'	'	'	'
Recorded Investment	'	'	'	'

Recovered_Sheet1

Loans and Allowance for Loan Losses - Risk category of loans by class of loans (Details 8) (USD $)	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2013
In Thousands, unless otherwise specified
Risk category of loans by class of loans	'	'	'
Total loans	$4,568,886	$4,329,266	$4,267,067
Loans Receivable	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	4,568,886	4,329,266	4,267,067
Loans Receivable | Pass	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	4,335,105	4,029,187	3,946,765
Loans Receivable | Watch	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	66,064	100,557	120,548
Loans Receivable | Performing Substandard	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	148,972	172,703	173,666
Loans Receivable | Nonaccrual Substandard	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	18,745	26,819	26,088
Loans Receivable | Doubtful / Loss	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	'	'	'
Loans Receivable | Owner occupied commercial real estate	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	1,153,933	1,133,543	1,129,152
Loans Receivable | Owner occupied commercial real estate | Pass	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	1,076,822	1,054,924	1,046,900
Loans Receivable | Owner occupied commercial real estate | Watch	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	25,098	29,714	35,948
Loans Receivable | Owner occupied commercial real estate | Performing Substandard	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	49,857	43,083	39,946
Loans Receivable | Owner occupied commercial real estate | Nonaccrual Substandard	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	2,156	5,822	6,358
Loans Receivable | Owner occupied commercial real estate | Doubtful / Loss	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	'	'	'
Loans Receivable | Income producing commercial real estate	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	604,727	623,167	613,619
Loans Receivable | Income producing commercial real estate | Pass	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	563,451	575,597	556,963
Loans Receivable | Income producing commercial real estate | Watch	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	17,319	10,410	19,403
Loans Receivable | Income producing commercial real estate | Performing Substandard	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	22,215	34,642	35,596
Loans Receivable | Income producing commercial real estate | Nonaccrual Substandard	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	1,742	2,518	1,657
Loans Receivable | Income producing commercial real estate | Doubtful / Loss	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	'	'	'
Loans Receivable | Commercial & industrial	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	649,853	471,961	457,414
Loans Receivable | Commercial & industrial | Pass	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	637,160	456,563	436,401
Loans Receivable | Commercial & industrial | Watch	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	3,602	5,382	10,062
Loans Receivable | Commercial & industrial | Performing Substandard	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	7,498	9,589	10,342
Loans Receivable | Commercial & industrial | Nonaccrual Substandard	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	1,593	427	609
Loans Receivable | Commercial & industrial | Doubtful / Loss	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	'	'	'
Loans Receivable | Commercial construction	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	180,794	148,903	137,146
Loans Receivable | Commercial construction | Pass	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	174,443	120,852	109,332
Loans Receivable | Commercial construction | Watch	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	2,356	10,932	10,560
Loans Receivable | Commercial construction | Performing Substandard	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	3,847	16,758	16,911
Loans Receivable | Commercial construction | Nonaccrual Substandard	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	148	361	343
Loans Receivable | Commercial construction | Doubtful / Loss	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	'	'	'
Loans Receivable | Commercial	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	2,589,307	2,377,574	2,337,331
Loans Receivable | Commercial | Pass	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	2,451,876	2,207,936	2,149,596
Loans Receivable | Commercial | Watch	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	48,375	56,438	75,973
Loans Receivable | Commercial | Performing Substandard	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	83,417	104,072	102,795
Loans Receivable | Commercial | Nonaccrual Substandard	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	5,639	9,128	8,967
Loans Receivable | Commercial | Doubtful / Loss	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	'	'	'
Loans Receivable | Residential mortgage	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	865,568	875,077	888,679
Loans Receivable | Residential mortgage | Pass	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	803,937	793,381	808,574
Loans Receivable | Residential mortgage | Watch	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	10,300	25,944	23,277
Loans Receivable | Residential mortgage | Performing Substandard	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	42,981	44,022	45,493
Loans Receivable | Residential mortgage | Nonaccrual Substandard	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	8,350	11,730	11,335
Loans Receivable | Residential mortgage | Doubtful / Loss	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	'	'	'
Loans Receivable | Home equity lines of credit	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	458,819	440,887	420,616
Loans Receivable | Home equity lines of credit | Pass	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	450,026	426,052	406,575
Loans Receivable | Home equity lines of credit | Watch	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	'	5,420	5,193
Loans Receivable | Home equity lines of credit | Performing Substandard	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	8,073	7,967	7,679
Loans Receivable | Home equity lines of credit | Nonaccrual Substandard	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	720	1,448	1,169
Loans Receivable | Home equity lines of credit | Doubtful / Loss	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	'	'	'
Loans Receivable | Residential construction	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	307,178	328,579	317,789
Loans Receivable | Residential construction | Pass	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	284,491	298,685	283,197
Loans Receivable | Residential construction | Watch	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	7,389	11,526	14,943
Loans Receivable | Residential construction | Performing Substandard	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	11,755	14,104	15,552
Loans Receivable | Residential construction | Nonaccrual Substandard	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	3,543	4,264	4,097
Loans Receivable | Residential construction | Doubtful / Loss	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	'	'	'
Loans Receivable | Consumer installment	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	105,345	111,045	116,535
Loans Receivable | Consumer installment | Pass	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	102,460	107,029	112,706
Loans Receivable | Consumer installment | Watch	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	'	1,229	1,162
Loans Receivable | Consumer installment | Performing Substandard	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	2,746	2,538	2,147
Loans Receivable | Consumer installment | Nonaccrual Substandard	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	139	249	520
Loans Receivable | Consumer installment | Doubtful / Loss	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	'	'	'
Loans Receivable | Indirect auto	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	242,669	196,104	186,117
Loans Receivable | Indirect auto | Pass	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	242,315	196,104	186,117
Loans Receivable | Indirect auto | Watch	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	'	'	'
Loans Receivable | Indirect auto | Performing Substandard	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	'	'	'
Loans Receivable | Indirect auto | Nonaccrual Substandard	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	354	'	'
Loans Receivable | Indirect auto | Doubtful / Loss	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	'	'	'

Recovered_Sheet2

Loans and Allowance for Loan Losses - Recorded investment in nonaccrual loans by loan class (Details 9) (Loans Receivable, USD $)	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2013
In Thousands, unless otherwise specified
Recorded investment in nonaccrual loans by loan class	'	'	'
Nonaccrual Loans	$18,745	$26,819	$26,088
Balance as a percentage of unpaid principal	68.60%	65.30%	61.60%
Owner occupied commercial real estate	'	'	'
Recorded investment in nonaccrual loans by loan class	'	'	'
Nonaccrual Loans	2,156	5,822	6,358
Income producing commercial real estate	'	'	'
Recorded investment in nonaccrual loans by loan class	'	'	'
Nonaccrual Loans	1,742	2,518	1,657
Commercial & industrial	'	'	'
Recorded investment in nonaccrual loans by loan class	'	'	'
Nonaccrual Loans	1,593	427	609
Commercial construction	'	'	'
Recorded investment in nonaccrual loans by loan class	'	'	'
Nonaccrual Loans	148	361	343
Commercial	'	'	'
Recorded investment in nonaccrual loans by loan class	'	'	'
Nonaccrual Loans	5,639	9,128	8,967
Residential mortgage	'	'	'
Recorded investment in nonaccrual loans by loan class	'	'	'
Nonaccrual Loans	8,350	11,730	11,335
Home equity lines of credit	'	'	'
Recorded investment in nonaccrual loans by loan class	'	'	'
Nonaccrual Loans	720	1,448	1,169
Residential construction	'	'	'
Recorded investment in nonaccrual loans by loan class	'	'	'
Nonaccrual Loans	3,543	4,264	4,097
Consumer installment	'	'	'
Recorded investment in nonaccrual loans by loan class	'	'	'
Nonaccrual Loans	139	249	520
Indirect auto	'	'	'
Recorded investment in nonaccrual loans by loan class	'	'	'
Nonaccrual Loans	$354	'	'

Recovered_Sheet3

Loans and Allowance for Loan Losses (Details Textuals) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'	'	'
Criteria amount for evaluation of impairment	$500,000	'	$500,000	'	'
Accruing substandard relationship	2,000,000	'	2,000,000	'	'
Specific reserves	9,820,000	4,720,000	9,820,000	4,720,000	5,640,000
Loans outstanding classified as troubled debt restructurings	38,000	3,000	38,000	3,000	6,000
Percentage of appraised value of underlying collateral in nonaccrual status	80.00%	'	80.00%	'	'
Gross additional interest income that would have been earned if the nonaccrual loans had performed as per original terms	705,000	346,000	1,370,000	1,690,000	'
FHLB	'	'	'	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'	'	'	'
Pledged as collateral to secure FHLB advances	$2,210,000,000	$1,940,000,000	$2,210,000,000	$1,940,000,000	$1,770,000,000

Foreclosed_Property_Major_clas

Foreclosed Property - Major classifications of foreclosed properties (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2013
In Thousands, unless otherwise specified
Classifications of foreclosed properties	'	'	'
Total foreclosed property	$3,892	$5,403	$5,907
Less valuation allowance	-746	-1,182	-1,440
Foreclosed property, net	3,146	4,221	4,467
Balance as a percentage of original loan unpaid principal	54.50%	44.50%	41.50%
Commercial real estate	'	'	'
Classifications of foreclosed properties	'	'	'
Total foreclosed property	1,350	1,287	1,130
Commercial construction	'	'	'
Classifications of foreclosed properties	'	'	'
Total foreclosed property	'	'	376
Commercial	'	'	'
Classifications of foreclosed properties	'	'	'
Total foreclosed property	1,350	1,287	1,506
Residential mortgage	'	'	'
Classifications of foreclosed properties	'	'	'
Total foreclosed property	1,954	3,380	2,420
Residential construction	'	'	'
Classifications of foreclosed properties	'	'	'
Total foreclosed property	$588	$736	$1,981

Foreclosed_Property_Activity_i

Foreclosed Property - Activity in the valuation allowance for foreclosed property (Details 1) (USD $)	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
In Thousands, unless otherwise specified				Foreclosed Property	Foreclosed Property	Foreclosed Property	Foreclosed Property
Activity in the valuation allowance for foreclosed property	'	'	'	'	'	'	'
Balance at beginning of period	$746	$1,182	$1,440	$741	$3,602	$1,182	$6,954
Additions charged to expense	'	'	'	108	329	690	2,739
Disposals	'	'	'	-103	-2,491	-1,126	-8,253
Balance at end of period	$746	$1,182	$1,440	$746	$1,440	$746	$1,440

Foreclosed_Property_Expenses_r

Foreclosed Property - Expenses related to foreclosed assets (Details 2) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Expenses related to foreclosed assets	'	'	'	'
Net (gain)/loss on sales	($264)	$513	($1,208)	$3,563
Provision for unrealized losses	108	329	690	2,739
Operating expenses	441	-648	1,021	1,376
Total foreclosed property expense	$285	$194	$503	$7,678

Reclassifications_Out_of_Accum2

Reclassifications Out of Accumulated Other Comprehensive Income (Detail) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]	'	'	'	'
Securities gains, net	$11	'	$4,663	$116
Loan interest revenue	49,653	50,162	145,602	151,827
Loan interest revenue	2,812	1,941	6,847	7,816
Money market deposit interest expense	872	545	2,192	1,641
Tax (expense) or benefit	9,994	9,515	28,659	-246,681
Net of tax	17,616	12,441	48,934	248,063
Reclassifications Out of Accumulated Other Comprehensive Income	'	'	'	'
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]	'	'	'	'
Net of tax	-774	85	1,078	871
Reclassifications Out of Accumulated Other Comprehensive Income | Realized gains on sales of available-for-sale securities	'	'	'	'
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]	'	'	'	'
Securities gains, net	11	'	4,663	116
Tax (expense) or benefit	-4	'	-1,821	-45
Net of tax	7	'	2,842	71
Reclassifications Out of Accumulated Other Comprehensive Income | Amortization of (losses) gains included in net income on available-for-sale securities transferred to held to maturity	'	'	'	'
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]	'	'	'	'
Investment securities interest revenue	-468	214	-1,207	803
Tax (expense) or benefit	176	-83	453	-310
Net of tax	-292	131	-754	493
Reclassifications Out of Accumulated Other Comprehensive Income | Gains included in net income on derivative financial instruments accounted for as cash flow hedges	'	'	'	'
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]	'	'	'	'
Loan interest revenue	'	10	'	850
Loan interest revenue	'	48	'	52
Brokered deposit interest expense	-317	'	-764	'
Money market deposit interest expense	-81	'	-105	'
Brokered deposit interest expense	-313	'	-512	'
Total before tax	-711	58	-1,381	902
Tax (expense) or benefit	277	-23	538	-351
Net of tax	-434	35	-843	551
Reclassifications Out of Accumulated Other Comprehensive Income | Amortization of prior service cost and actuarial losses included in net periodic pension cost for defined benefit pension plan	'	'	'	'
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]	'	'	'	'
Total before tax	-91	-133	-274	-399
Tax (expense) or benefit	36	52	107	155
Net of tax	-55	-81	-167	-244
Reclassifications Out of Accumulated Other Comprehensive Income | Amortization of prior service cost and actuarial losses included in net periodic pension cost for defined benefit pension plan | Salaries and employee benefits expense	'	'	'	'
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]	'	'	'	'
Prior service cost	-91	-91	-274	-273
Actuarial losses	'	($42)	'	($126)

Earnings_Per_Share_Preferred_s

Earnings Per Share - Preferred stock dividends (Details) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Accrued dividends on preferred stock, including accretion of discounts	'	'	'	'
Total preferred stock dividends	'	$3,059	$439	$9,166
Series A - 6% fixed	'	'	'	'
Accrued dividends on preferred stock, including accretion of discounts	'	'	'	'
Total preferred stock dividends	'	3	'	9
Series B - 5% fixed until December 6, 2013, 9% thereafter	'	'	'	'
Accrued dividends on preferred stock, including accretion of discounts	'	'	'	'
Total preferred stock dividends	'	2,641	159	7,907
Series D - LIBOR plus 9.6875%, resets quarterly	'	'	'	'
Accrued dividends on preferred stock, including accretion of discounts	'	'	'	'
Total preferred stock dividends	'	$415	$280	$1,250

Earnings_Per_Share_Computation

Earnings Per Share - Computation of basic and diluted earnings per share (Details 1) (USD $)	3 Months Ended		9 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Computation of basic and diluted loss per share	'	'	'	'
Net income available to common shareholders	$17,616	$12,441	$48,934	$248,063
Weighted average shares outstanding:	'	'	'	'
Basic	60,776	59,100	60,511	58,443
Effect of dilutive securities	'	'	'	'
Stock options	3	1	2	1
Warrants	'	101	'	'
Diluted	60,779	59,202	60,513	58,444
Net income per common share:	'	'	'	'
Basic (in dollars per share)	$0.29	$0.21	$0.81	$4.24
Diluted (in dollars per share)	$0.29	$0.21	$0.81	$4.24

Earnings_Per_Share_Details_Tex

Earnings Per Share (Details Textuals) (USD $)	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Class of Stock [Line Items]	'	'
Exercise of price warrants	$61.40	$61.40
Shares issuable upon the exercise of warrants	219,909	219,909
Fletcher International Ltd	'	'
Class of Stock [Line Items]	'	'
Exercise of price warrants	$21.25	$21.25
Shares issuable upon the exercise of warrants	1,411,765	1,411,765
Employees	'	'
Class of Stock [Line Items]	'	'
Shares issuable upon exercise of grants	305,291	371,449
Weighted average exercise price of stock options granted to employees	$95.98	$98.54
Restricted Stock	'	'
Class of Stock [Line Items]	'	'
Vesting of restricted stock awards	801,334	1,073,259

Derivatives_and_Hedging_Activi2

Derivatives and Hedging Activities - Derivatives accounted for as hedges under ASC 815 (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2013
In Thousands, unless otherwise specified
Derivatives, Fair Value [Line Items]	'	'	'
Derivatives accounted for as hedges, asset derivatives, fair value	$1,349	$8,721	$6,289
Derivatives accounted for as hedges, liability derivatives, fair value	10,201	25,646	35,451
Other assets | Cash flow hedging | Money Market Deposits	'	'	'
Derivatives, Fair Value [Line Items]	'	'	'
Derivatives accounted for as hedges, asset derivatives, fair value	1,349	4,782	3,580
Other assets | Fair value hedging | Corporate Bonds	'	'	'
Derivatives, Fair Value [Line Items]	'	'	'
Derivatives accounted for as hedges, asset derivatives, fair value	'	3,939	2,709
Other liabilities | Cash flow hedging | Short-Term Debt	'	'	'
Derivatives, Fair Value [Line Items]	'	'	'
Derivatives accounted for as hedges, liability derivatives, fair value	'	3,368	3,247
Other liabilities | Cash flow hedging | Money Market Deposits	'	'	'
Derivatives, Fair Value [Line Items]	'	'	'
Derivatives accounted for as hedges, liability derivatives, fair value	'	'	431
Other liabilities | Fair value hedging | Brokered CD's	'	'	'
Derivatives, Fair Value [Line Items]	'	'	'
Derivatives accounted for as hedges, liability derivatives, fair value	10,201	19,970	28,748
Other liabilities | Fair value hedging | Corporate Bonds	'	'	'
Derivatives, Fair Value [Line Items]	'	'	'
Derivatives accounted for as hedges, liability derivatives, fair value	'	$2,308	$3,025

Derivatives_and_Hedging_Activi3

Derivatives and Hedging Activities - Derivatives not designated as hedging instruments under ASC 815 (Details 1) (USD $)	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2013
In Thousands, unless otherwise specified
Derivatives, Fair Value [Line Items]	'	'	'
Interest rate derivative instruments not designated as hedging instruments, assets at fair value	$20,872	$15,112	$1,803
Interest rate derivative instruments not designated as hedging instruments, liabilities at fair value	25,970	20,586	1,818
Other assets | Customer swap positions	'	'	'
Derivatives, Fair Value [Line Items]	'	'	'
Interest rate derivative instruments not designated as hedging instruments, assets at fair value	2,067	898	1,096
Other assets | Dealer offsets to customer swap positions	'	'	'
Derivatives, Fair Value [Line Items]	'	'	'
Interest rate derivative instruments not designated as hedging instruments, assets at fair value	475	1,347	707
Other assets | Bifurcated embedded derivatives	'	'	'
Derivatives, Fair Value [Line Items]	'	'	'
Interest rate derivative instruments not designated as hedging instruments, assets at fair value	14,780	12,867	'
Other assets | Offsetting positions for de-designated cash flow hedges	'	'	'
Derivatives, Fair Value [Line Items]	'	'	'
Interest rate derivative instruments not designated as hedging instruments, assets at fair value	3,550	'	'
Other liabilities | Customer swap positions	'	'	'
Derivatives, Fair Value [Line Items]	'	'	'
Interest rate derivative instruments not designated as hedging instruments, liabilities at fair value	475	1,347	707
Other liabilities | Dealer offsets to customer swap positions	'	'	'
Derivatives, Fair Value [Line Items]	'	'	'
Interest rate derivative instruments not designated as hedging instruments, liabilities at fair value	2,087	915	1,111
Other liabilities | Dealer offsets to bifurcated embedded derivatives	'	'	'
Derivatives, Fair Value [Line Items]	'	'	'
Interest rate derivative instruments not designated as hedging instruments, liabilities at fair value	19,858	18,324	'
Other liabilities | Cash flow hedging | Brokered CD's	'	'	'
Derivatives, Fair Value [Line Items]	'	'	'
Interest rate derivative instruments not designated as hedging instruments, liabilities at fair value	2,645	'	'
Other liabilities | Cash flow hedging | Money Market Deposits	'	'	'
Derivatives, Fair Value [Line Items]	'	'	'
Interest rate derivative instruments not designated as hedging instruments, liabilities at fair value	$905	'	'

Derivatives_and_Hedging_Activi4

Derivatives and Hedging Activities - Derivatives in Fair Value Hedging Relationships (Details 2) (Fair value hedging, USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Effect of fair value hedging derivative financial instruments on the consolidated statement of operations	'	'	'	'
Amount of Gain (Loss) Recognized in Income on Derivative	($37)	($2,740)	$7,591	($15,796)
Amount of Gain (Loss) Recognized in Income on Hedged Item	-275	2,778	-8,528	16,037
Interest expense | Brokered CD's	'	'	'	'
Effect of fair value hedging derivative financial instruments on the consolidated statement of operations	'	'	'	'
Amount of Gain (Loss) Recognized in Income on Derivative	-37	-2,849	10,078	-20,134
Amount of Gain (Loss) Recognized in Income on Hedged Item	-275	2,872	-10,691	19,988
Interest revenue | Corporate Bonds	'	'	'	'
Effect of fair value hedging derivative financial instruments on the consolidated statement of operations	'	'	'	'
Amount of Gain (Loss) Recognized in Income on Derivative	'	109	-2,487	4,338
Amount of Gain (Loss) Recognized in Income on Hedged Item	'	($94)	$2,163	($3,951)

Derivatives_and_Hedging_Activi5

Derivatives and Hedging Activities - Derivatives in Cash Flow Hedging Relationships (Details 3) (Cash flow hedging, USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Derivative Instruments, Gain (Loss) [Line Items]	'	'	'	'
Gain (Loss) Reclassified from Accumulated Other Comprehensive Income into Income (Effective Portion)	($711)	$58	($1,381)	$902
Interest rate swaps	'	'	'	'
Derivative Instruments, Gain (Loss) [Line Items]	'	'	'	'
Amount of Gain (Loss) Recognized in Other Comprehensive Income on Derivative (Effective Portion)	412	-3,507	-5,967	8,595
Interest expense	'	'	'	'
Derivative Instruments, Gain (Loss) [Line Items]	'	'	'	'
Gain (Loss) Reclassified from Accumulated Other Comprehensive Income into Income (Effective Portion)	-711	'	-1,381	'
Gain (Loss) Recognized in Income on Derivative (Ineffective Portion)	12	-33	-73	46
Interest revenue	'	'	'	'
Derivative Instruments, Gain (Loss) [Line Items]	'	'	'	'
Gain (Loss) Reclassified from Accumulated Other Comprehensive Income into Income (Effective Portion)	'	$58	'	$902

Derivatives_and_Hedging_Activi6

Derivatives and Hedging Activities (Details Textuals) (USD $)

Sep. 30, 2014

Sep. 30, 2014

Jun. 30, 2014

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Dec. 31, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Credit risk

Cash flow hedging

Cash flow hedging

Cash flow hedging

Cash flow hedging

Cash flow hedging

Cash flow hedging

Fair value hedging of interest rate risk

Fair value hedging of interest rate risk

Fair value hedging of interest rate risk

Fair value hedging of interest rate risk

Interest expense

Interest expense

Interest expense

Interest expense

Interest revenue

Interest revenue

Interest revenue

Offsetting positions for de-designated cash flow hedges

Interest Rate Risk

Interest Rate Risk

Interest Rate Risk

Interest Rate Risk

Interest Rate Risk

Interest Rate Risk

Interest Rate Risk

Interest Rate Risk

Interest Rate Risk

Fair value hedging of interest rate risk

Fair value hedging of interest rate risk

Fair value hedging of interest rate risk

Fair value hedging of interest rate risk

Fair value hedging of interest rate risk

Fair value hedging of interest rate risk

Fair value hedging of interest rate risk

Contract

Contract

Contract

Contract

Contract

Contract

Contract

Contract

Contract

Interest Rate Risk

Interest Rate Risk

Interest Rate Risk

Interest Rate Risk

Interest Rate Risk

Interest Rate Risk

Interest Rate Risk

Derivative Instruments, Gain (Loss) [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Number of derivative contracts outstanding

'

'

'

2

3

2

3

3

16

27

16

27

'

'

'

'

'

'

'

Derivative instruments outstanding

'

'

'

'

'

'

'

'

'

8

'

8

'

'

'

'

'

'

'

Recognized net gain (loss) related to ineffectiveness of hedging relationships

'

'

'

$12,000

$33,000

($73,000)

$33,000

'

($312,000)

$38,000

($937,000)

$241,000

'

'

'

'

'

'

'

Increase to deposit interest expense over next twelve months

'

'

'

'

'

3,770,000

'

'

'

'

'

'

'

'

'

'

'

'

'

Reclassification of gains recognized in loan interest revenue as hedge ineffectiveness

'

'

'

'

48,000

'

53,000

'

'

'

'

'

'

'

'

'

'

'

'

Net reduction of interest expense/revenue

'

'

'

'

'

'

'

'

'

'

'

'

1,040,000

2,470,000

3,470,000

4,730,000

516,000

955,000

811,000

Collateral pledged toward derivatives

'

38,200,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Remaining number of derivative held

'

'

'

'

'

'

'

'

'

19

'

19

'

'

'

'

'

'

'

Aggregate notional amount designated as fair value hedges of interest rate risk

'

'

'

'

'

'

'

'

'

86,000,000

'

86,000,000

'

'

'

'

'

'

'

Total notional amount designated as cash flow hedges

'

'

400,000,000

275,000,000

375,000,000

275,000,000

375,000,000

200,000,000

199,000,000

387,000,000

199,000,000

387,000,000

'

'

'

'

'

'

'

Notional amount of interest rate cash flow hedge derivatives becoming effective later in 2015

$175,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

StockBased_Compensation_Stock_

Stock-Based Compensation - Stock option activity (Details) (Stock Options, USD $)	9 Months Ended
In Thousands, except Share data, unless otherwise specified	Sep. 30, 2014
Stock Options	'
Shares	'
Outstanding at December 31, 2013	350,772
Expired	-45,481
Outstanding at September 30, 2014	305,291
Exercisable at September 30, 2014	299,041
Weighted-Average Exercise Price	'
Outstanding at December 31, 2013	$97.87
Expired	$110.57
Outstanding at September 30, 2014	$95.98
Exercisable at September 30, 2014	$97.70
Weighted-Average Remaining Contractual Term (Years), Outstanding	'2 years 10 months 24 days
Weighted-Average Remaining Contractual Term (Years), Exercisable	'2 years 9 months 18 days
Aggregate Intrinsic Value, Outstanding	$59
Aggregate Intrinsic Value, Exercisable	$41

StockBased_Compensation_Key_as

Stock-Based Compensation - Key assumptions used to determine the fair value of options granted to employees (Details 1) (Stock Options)	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Stock Options	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'
Expected volatility	'	30.00%
Expected dividend yield	'	0.00%
Expected life (in years)	'	'6 years 3 months
Risk-free rate	'	2.01%

StockBased_Compensation_Restri

Stock-Based Compensation - Restricted stock activity (Details 2) (Restricted Stock and Restricted Stock Unit, USD $)	9 Months Ended
	Sep. 30, 2014
Restricted Stock and Restricted Stock Unit	'
Shares	'
Outstanding at December 31, 2013	1,073,676
Granted	55,066
Exercised	-324,108
Cancelled	-3,300
Outstanding at September 30, 2014	801,334
Vested at September 30, 2014	7,580
Weighted-Average Grant-Date Fair Value	'
Outstanding at December 31, 2013	$13.73
Granted	$17.73
Exercised	$12.24
Cancelled	$13.18
Outstanding at September 30, 2014	$14.61
Vested at September 30, 2014	$9.90

StockBased_Compensation_Detail

Stock-Based Compensation (Details textuals) (USD $)	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'
Additional award granted under plan	529,000	'
Vesting period	'4 years	'
Exercisable period	'10 years	'
Unrecognized compensation cost	$10,000,000	'
Recognition period for unrecognized compensation cost related	'3 years	'
Aggregate grant date fair value	3,830,000	'
Stock Options	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'
Compensation expense	5,000	56,000
Estimated forfeiture rate of award	3.00%	'
Restricted Stock and Restricted Stock Unit	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'
Compensation expense	3,230,000	2,010,000
Total intrinsic value	$13,200,000	'
Other operating expense for restricted stock units granted	$76,000	$118,000

Common_and_Preferred_Stock_Iss1

Common and Preferred Stock Issued / Common Stock Issuable (Details Textual) (USD $)	9 Months Ended		1 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Mar. 25, 2014
			Settlement Agreement
			Fletcher International Ltd
Common And Preferred Stock Issued And Common Stock Issuable [Line Items]	'	'	'
Number of common stock shares issued	640,000	'	640,000
Fair value of common stock shares issued	$12,206,000	'	$12,000,000
Net proceeds after discounts and expenses	12,206,000	'	12,200,000
Discount rate to purchase shares of common stock	5.00%	'	'
Number of shares issued	25,284	49,830	'
Amount of shares issued	$424,000	$582,000	'
Number of shares issuable under the deferred compensation plan	354,961	242,262	'

Income_Taxes_Details_Textuals

Income Taxes (Details Textuals) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Jun. 30, 2014	Dec. 31, 2013
Income Tax Disclosure [Abstract]	'	'	'	'	'	'
Income tax expense (benefit)	$9,994,000	$9,515,000	$28,659,000	($246,681,000)	'	'
Income tax effective tax rate	36.20%	'	36.70%	'	'	'
Valuation allowance on deferred tax assets	4,450,000	4,610,000	4,450,000	4,610,000	'	4,100,000
Reversal of the valuation allowance	'	272,000,000	'	272,000,000	272,000,000	'
Valuation allowance related to specific state income tax credits	'	'	4,450,000	'	'	'
Net deferred tax asset realized based upon future taxable income	'	'	225,000,000	'	'	'
Unrecognized income tax benefits	4,100,000	4,450,000	4,100,000	4,450,000	'	4,500,000
Reclassification amount of unrecognized income tax benefits	$4,590,000	'	$4,590,000	'	'	'

Assets_and_Liabilities_Measure2

Assets and Liabilities Measured at Fair Value - Assets and liabilities measured at fair value on recurring basis (Details) (Recurring, USD $)	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2013
In Thousands, unless otherwise specified
Level 1	'	'	'
Assets:	'	'	'
Assets, fair value	$3,734	$3,496	$3,203
Liabilities:	'	'	'
Liabilities, fair value	3,734	3,496	3,203
Level 1 | U.S. Treasury securities	'	'	'
Assets:	'	'	'
Assets, fair value	'	'	'
Level 1 | State and political subdivisions	'	'	'
Assets:	'	'	'
Assets, fair value	'	'	'
Level 1 | Mortgage-backed securities	'	'	'
Assets:	'	'	'
Assets, fair value	'	'	'
Level 1 | Corporate bonds	'	'	'
Assets:	'	'	'
Assets, fair value	'	'	'
Level 1 | Asset-backed securities	'	'	'
Assets:	'	'	'
Assets, fair value	'	'	'
Level 1 | Other	'	'	'
Assets:	'	'	'
Assets, fair value	'	'	'
Level 1 | Deferred compensation plan assets	'	'	'
Assets:	'	'	'
Assets, fair value	3,734	3,496	3,203
Level 1 | Derivative financial instruments	'	'	'
Assets:	'	'	'
Assets, fair value	'	'	'
Level 1 | Deferred compensation plan liability	'	'	'
Liabilities:	'	'	'
Liabilities, fair value	3,734	3,496	3,203
Level 2	'	'	'
Assets:	'	'	'
Assets, fair value	1,811,588	1,855,700	1,971,166
Liabilities:	'	'	'
Liabilities, fair value	211,224	219,889	310,551
Level 2 | U.S. Treasury securities	'	'	'
Assets:	'	'	'
Assets, fair value	105,022	'	'
Level 2 | State and political subdivisions	'	'	'
Assets:	'	'	'
Assets, fair value	20,321	23,242	23,524
Level 2 | Mortgage-backed securities	'	'	'
Assets:	'	'	'
Assets, fair value	1,034,992	1,145,347	1,383,317
Level 2 | Corporate bonds	'	'	'
Assets:	'	'	'
Assets, fair value	164,952	249,946	246,601
Level 2 | Asset-backed securities	'	'	'
Assets:	'	'	'
Assets, fair value	462,044	410,633	307,238
Level 2 | Other	'	'	'
Assets:	'	'	'
Assets, fair value	2,036	2,699	2,394
Level 2 | Deferred compensation plan assets	'	'	'
Assets:	'	'	'
Assets, fair value	'	'	'
Level 2 | Derivative financial instruments	'	'	'
Assets:	'	'	'
Assets, fair value	22,221	23,833	8,092
Level 2 | Deferred compensation plan liability	'	'	'
Liabilities:	'	'	'
Liabilities, fair value	'	'	'
Level 2 | Brokered certificates of deposit	'	'	'
Liabilities:	'	'	'
Liabilities, fair value	175,053	173,657	273,282
Level 2 | Derivative financial instruments	'	'	'
Liabilities:	'	'	'
Liabilities, fair value	36,171	46,232	37,269
Level 3	'	'	'
Assets:	'	'	'
Assets, fair value	300	350	350
Liabilities:	'	'	'
Liabilities, fair value	'	'	'
Level 3 | U.S. Treasury securities	'	'	'
Assets:	'	'	'
Assets, fair value	'	'	'
Level 3 | State and political subdivisions	'	'	'
Assets:	'	'	'
Assets, fair value	'	'	'
Level 3 | Mortgage-backed securities	'	'	'
Assets:	'	'	'
Assets, fair value	'	'	'
Level 3 | Corporate bonds	'	'	'
Assets:	'	'	'
Assets, fair value	300	350	350
Level 3 | Asset-backed securities	'	'	'
Assets:	'	'	'
Assets, fair value	'	'	'
Level 3 | Other	'	'	'
Assets:	'	'	'
Assets, fair value	'	'	'
Level 3 | Deferred compensation plan assets	'	'	'
Assets:	'	'	'
Assets, fair value	'	'	'
Level 3 | Derivative financial instruments	'	'	'
Assets:	'	'	'
Assets, fair value	'	'	'
Level 3 | Deferred compensation plan liability	'	'	'
Liabilities:	'	'	'
Liabilities, fair value	'	'	'
Level 3 | Brokered certificates of deposit	'	'	'
Liabilities:	'	'	'
Liabilities, fair value	'	'	'
Level 3 | Derivative financial instruments	'	'	'
Liabilities:	'	'	'
Liabilities, fair value	'	'	'
Total	'	'	'
Assets:	'	'	'
Assets, fair value	1,815,622	1,859,546	1,974,719
Liabilities:	'	'	'
Liabilities, fair value	214,958	223,385	313,754
Total | U.S. Treasury securities	'	'	'
Assets:	'	'	'
Assets, fair value	105,022	'	'
Total | State and political subdivisions	'	'	'
Assets:	'	'	'
Assets, fair value	20,321	23,242	23,524
Total | Mortgage-backed securities	'	'	'
Assets:	'	'	'
Assets, fair value	1,034,992	1,145,347	1,383,317
Total | Corporate bonds	'	'	'
Assets:	'	'	'
Assets, fair value	165,252	250,296	246,951
Total | Asset-backed securities	'	'	'
Assets:	'	'	'
Assets, fair value	462,044	410,633	307,238
Total | Other	'	'	'
Assets:	'	'	'
Assets, fair value	2,036	2,699	2,394
Total | Deferred compensation plan assets	'	'	'
Assets:	'	'	'
Assets, fair value	3,734	3,496	3,203
Total | Derivative financial instruments	'	'	'
Assets:	'	'	'
Assets, fair value	22,221	23,833	8,092
Total | Deferred compensation plan liability	'	'	'
Liabilities:	'	'	'
Liabilities, fair value	3,734	3,496	3,203
Total | Brokered certificates of deposit	'	'	'
Liabilities:	'	'	'
Liabilities, fair value	175,053	173,657	273,282
Total | Derivative financial instruments	'	'	'
Liabilities:	'	'	'
Liabilities, fair value	$36,171	$46,232	$37,269

Assets_and_Liabilities_Measure3

Assets and Liabilities Measured at Fair Value - Assets and liabilities measured at fair value (Details 1) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Assets measured at fair value on recurring basis using significant unobservable inputs	'	'	'	'
Balance at beginning of period	$300	$350	$350	$350
Amounts included in earnings	'	'	'	'
Paydowns / sales	'	'	-50	'
Balance at end of period	$300	$350	$300	$350

Assets_and_Liabilities_Measure4

Assets and Liabilities Measured at Fair Value - Assets and liabilities measured at fair value on nonrecurring basis (Details 2) (Nonrecurring, USD $)	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2013
In Thousands, unless otherwise specified
Level 1	'	'	'
Assets	'	'	'
Loans	'	'	'
Foreclosed properties	'	'	'
Total assets	'	'	'
Level 2	'	'	'
Assets	'	'	'
Loans	'	'	'
Foreclosed properties	'	'	'
Total assets	'	'	'
Level 3	'	'	'
Assets	'	'	'
Loans	85,827	82,798	76,393
Foreclosed properties	2,204	3,747	3,898
Total assets	88,031	86,545	80,291
Total	'	'	'
Assets	'	'	'
Loans	85,827	82,798	76,393
Foreclosed properties	2,204	3,747	3,898
Total assets	$88,031	$86,545	$80,291

Assets_and_Liabilities_Measure5

Assets and Liabilities Measured at Fair Value - Fair values for other financial instruments that are not measured at fair value on recurring basis (Details 3) (USD $)	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2013
In Thousands, unless otherwise specified
Assets:	'	'	'
Securities held to maturity	$440,311	$485,585	$214,651
Loans, net	4,496,958	4,252,504	4,186,695
Level 1	'	'	'
Assets:	'	'	'
Securities held to maturity	'	'	'
Loans, net	'	'	'
Mortgage loans held for sale	'	'	'
Liabilities:	'	'	'
Deposits	'	'	'
Federal Home Loan Bank advances	'	'	'
Long-term debt	'	'	'
Level 2	'	'	'
Assets:	'	'	'
Securities held to maturity	440,311	485,585	214,651
Loans, net	'	'	'
Mortgage loans held for sale	20,253	10,529	11,979
Liabilities:	'	'	'
Deposits	6,228,804	6,204,815	6,117,769
Federal Home Loan Bank advances	330,134	120,125	125
Long-term debt	'	'	'
Level 3	'	'	'
Assets:	'	'	'
Securities held to maturity	'	'	'
Loans, net	4,437,039	4,165,591	4,095,666
Mortgage loans held for sale	'	'	'
Liabilities:	'	'	'
Deposits	'	'	'
Federal Home Loan Bank advances	'	'	'
Long-term debt	132,636	130,262	129,197
Total	'	'	'
Assets:	'	'	'
Securities held to maturity	440,311	485,585	214,651
Loans, net	4,437,039	4,165,591	4,095,666
Mortgage loans held for sale	20,253	10,529	11,979
Liabilities:	'	'	'
Deposits	6,228,804	6,204,815	6,117,769
Federal Home Loan Bank advances	330,134	120,125	125
Long-term debt	132,636	130,262	129,197
Carrying Amount	'	'	'
Assets:	'	'	'
Securities held to maturity	432,418	479,742	205,613
Loans, net	4,496,958	4,252,504	4,186,695
Mortgage loans held for sale	20,004	10,319	11,987
Liabilities:	'	'	'
Deposits	6,240,729	6,201,505	6,112,907
Federal Home Loan Bank advances	330,125	120,125	125
Long-term debt	$129,865	$129,865	$129,865

Assets_and_Liabilities_Measure6

Assets and Liabilities Measured at Fair Value (Details Textual) (USD $)	9 Months Ended
	Sep. 30, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'
Percentage of written down in appraisal value of nonaccrual impaired loans	80.00%
Percentage of written down in appraisal value of foreclosed properties	80.00%
Percentage of written down in asking price of foreclosed properties	90.00%
Maximum remaining maturity of financial instruments having no defined maturity	'180 days
Sale of investment	$200,000
Gain from sale of investment	150,000
Level 3	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'
Number of securities	1
Level 3 | First Investment	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'
Par value of investment	1,000,000
Negative mark to fair value	700,000
Level 3 | Second Investment	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'
Par value of investment	1,000,000
Impairment charges of investment	950,000
Written down value of investment	$50,000

Commitments_and_Contingencies_1

Commitments and Contingencies - Contractual amount of off-balance sheet instruments (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2013
In Thousands, unless otherwise specified
Commitments to extend credit	'	'	'
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]	'	'	'
Financial instruments	$852,635	$747,170	$677,891
Letters of credit	'	'	'
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]	'	'	'
Financial instruments	$20,534	$19,846	$9,818