United Community Banks (UCB) 10-Q 7 Nov 13 2013 Q3 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information	9 Months Ended
	Sep. 30, 2013	Oct. 31, 2013	Oct. 31, 2013
		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	'Accelerated Filer	'	'
Entity Common Stock, Shares Outstanding	'	45,230,240	14,189,006
Document Type	'10-Q	'	'
Document Period End Date	30-Sep-13	'	'
Amendment Flag	'false	'	'
Document Fiscal Year Focus	'2013	'	'
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, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Interest revenue:	'	'	'	'
Loans, including fees	$50,114	$53,868	$151,776	$163,805
Investment securities, including tax exempt of $202, $225, $624 and $737	9,872	10,706	29,518	34,772
Deposits in banks and short-term investments	1,007	985	2,793	3,093
Total interest revenue	60,993	65,559	184,087	201,670
Deposits:	'	'	'	'
NOW	413	447	1,286	1,587
Money market	545	599	1,641	1,901
Savings	37	37	109	112
Time	2,486	4,612	8,636	15,844
Total deposit interest expense	3,481	5,695	11,672	19,444
Short-term borrowings	525	514	1,563	2,463
Federal Home Loan Bank advances	16	26	65	882
Long-term debt	3,003	2,372	8,331	7,119
Total interest expense	7,025	8,607	21,631	29,908
Net interest revenue	53,968	56,952	162,456	171,762
Provision for loan losses	3,000	15,500	62,500	48,500
Net interest revenue after provision for loan losses	50,968	41,452	99,956	123,262
Fee revenue:	'	'	'	'
Service charges and fees	8,456	7,696	23,831	23,295
Mortgage loan and other related fees	2,554	2,800	8,212	7,221
Brokerage fees	1,274	709	3,104	2,331
Securities gains, net	'	'	116	7,047
Loss from prepayment of debt	'	'	'	-6,681
Other	1,860	2,559	8,019	8,797
Total fee revenue	14,144	13,764	43,282	42,010
Total revenue	65,112	55,216	143,238	165,272
Operating expenses:	'	'	'	'
Salaries and employee benefits	23,090	22,918	71,416	72,440
Communications and equipment	3,305	3,254	9,819	9,620
Occupancy	3,379	3,539	10,195	10,849
Advertising and public relations	962	934	2,937	2,868
Postage, printing and supplies	644	954	2,401	2,849
Professional fees	2,650	2,180	7,515	6,107
Foreclosed property	194	3,706	7,678	9,382
FDIC assessments and other regulatory charges	2,405	2,537	7,415	7,592
Amortization of intangibles	427	728	1,623	2,190
Other	3,041	4,033	11,691	12,151
Total operating expenses	40,097	44,783	132,690	136,048
Net income before income taxes	25,015	10,433	10,548	29,224
Income tax expense (benefit)	9,515	-135	-246,681	629
Net income	15,500	10,568	257,229	28,595
Preferred stock dividends and discount accretion	3,059	3,041	9,166	9,103
Net income available to common shareholders	$12,441	$7,527	$248,063	$19,492
Earnings per common share	'	'	'	'
Basic (in dollars per share)	$0.21	$0.13	$4.24	$0.34
Diluted (in dollars per share)	$0.21	$0.13	$4.24	$0.34
Weighted average common shares outstanding	'	'	'	'
Basic (in shares)	59,100	57,880	58,443	57,826
Diluted (in shares)	59,202	57,880	58,444	57,826

Consolidated_Statement_of_Inco1

Consolidated Statement of Income (Unaudited) (Parentheticals) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Income Statement [Abstract]	'	'	'	'
Investment securities tax exemption	$202	$225	$624	$737

Consolidated_Statement_of_Comp

Consolidated Statement of Comprehensive Income (Unaudited) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Consolidated Statement Of Comprehensive Income (Loss) [Abstract]	'	'	'	'
Net income (loss) from continuing operations, Before-tax Amount	$25,015	$10,433	$10,548	$29,224
Net income (loss) from continuing operations, Tax (Expense) Benefit	-9,515	135	246,681	-629
Net income (loss) from continuing operations, Net of Tax Amount	15,500	10,568	257,229	28,595
Unrealized (losses) gains on available-for-sale securities:	'	'	'	'
Unrealized holding gains (losses) arising during period, Before-tax Amount	-13,215	5,813	-26,932	6,737
Unrealized holding gains (losses) arising during period, Tax (Expense) Benefit	4,971	-2,139	10,148	-2,415
Unrealized holding gains (losses) arising during period, Net of Tax Amount	-8,244	3,674	-16,784	4,322
Reclassification adjustment for gains included in net income (loss), Before-tax Amount	'	'	-116	-7,047
Reclassification adjustment for gains included in net income, tax (expense) or benefit	'	'	45	2,631
Reclassification adjustment for gains included in net income (loss), Net of Tax Amount	'	'	-71	-4,416
Valuation allowance for the change in deferred taxes arising from unrealized gains and losses on available for sale securities, Tax (Expense) Benefit	'	2,139	-2,950	-216
Valuation allowance for the change in deferred taxes arising from unrealized gains and losses on available for sale securities, Net of tax Amount	'	2,139	-2,950	-216
Net unrealized gains (losses), Before-tax Amount	-13,215	5,813	-27,048	-310
Net unrealized gains (losses), Tax (Expense) Benefit	4,971	'	7,243	'
Net unrealized gains (losses), Net of Tax Amount	-8,244	5,813	-19,805	-310
Amortization of gains included in net income (loss) on available-for-sale securities transferred to held-to-maturity, Before-tax Amount	-214	-499	-804	-1,312
Amortization of gains included in net income on available-for-sale securities transferred to held to maturity, Tax (Expense) Benefit	82	189	309	497
Amortization of gains included in net income (loss) on available-for-sale securities transferred to held-to-maturity, Net of Tax Amount	-132	-310	-495	-815
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	'	-189	1,293	-497
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	'	-189	1,293	-497
Net unrealized losses, Before-tax Amount	-214	-499	-804	-1,312
Net unrealized losses, Tax (Expense) Benefit	82	'	1,602	'
Net unrealized losses, Net of Tax Amount	-132	-499	798	-1,312
Amounts reclassified into net income on cash flow hedges, Before-tax Amount	-58	-763	-902	-3,077
Amounts reclassified into net income on cash flow hedges, Tax (Expense) Benefit	23	297	351	1,197
Amounts reclassified into net income on cash flow hedges, Net of Tax Amount	-35	-466	-551	-1,880
Unrealized losses on derivative financial instruments accounted for as cash flow hedges, Before-tax Amount	-3,369	-3,943	8,733	-8,798
Unrealized losses on derivative financial instruments accounted for as cash flow hedges, Tax (Expense) Benefit	1,321	1,534	-3,386	3,422
Unrealized losses on derivative financial instruments accounted for as cash flow hedges, Net of Tax Amount	-2,048	-2,409	5,347	-5,376
Valuation allowance for the change in deferred taxes arising from unrealized gains and losses and amortization of gains included in net income (loss) on cash flow hedges, Tax (Expense) Benefit	'	-1,831	13,698	-4,619
Valuation allowance for the change in deferred taxes arising from unrealized gains and losses and amortization of gains included in net income (loss) on cash flow hedges, Net of Tax Amount	'	-1,831	13,698	-4,619
Net unrealized losses, Before-tax Amount	-3,427	-4,706	7,831	-11,875
Net unrealized losses, Tax (Expense) Benefit	1,344	'	10,663	'
Net unrealized losses, Net of Tax Amount	-2,083	-4,706	18,494	-11,875
Net actuarial loss on defined benefit pension plan, Before-tax Amount	'	'	-415	'
Net actuarial loss on defined benefit pension plan, Tax (Expense) Benefit	'	'	161	'
Net actuarial loss on defined benefit pension plan, Net of Tax Amount	'	'	-254	'
Amortization of prior service cost and actuarial losses included in net periodic pension cost for defined benefit pension plan, Before-tax Amount	133	154	398	462
Amortization of prior service cost and actuarial losses included in net periodic pension cost for defined benefit pension plan, Tax (Expense) Benefit	-52	-60	-155	-180
Amortization of prior service cost and actuarial losses included in net periodic pension cost for defined benefit pension plan, Net of Tax Amount	81	94	243	282
Adjustment of valuation allowance for the change in deferred taxes arising from reclassification of unamortized prior service cost and actuarial losses and amortization of prior service cost and actuarial losses, Tax (Expense) Benefit	'	60	'	180
Adjustment of valuation allowance for the change in deferred taxes arising from reclassification of unamortized prior service cost and actuarial losses and amortization of prior service cost and actuarial losses, Tax (Expense) Benefit	'	60	'	180
Net defined benefit pension plan activity, Before-tax Amount	133	154	-17	462
Net defined benefit pension plan activity, Tax (Expense) Benefit	-52	'	6	'
Net defined benefit pension plan activity, Net of Tax Amount	81	154	-11	462
Total other comprehensive loss, Before-tax Amount	-16,723	762	-20,038	-13,035
Total other comprehensive loss, Tax (Expense) Benefit	6,345	'	19,514	'
Total other comprehensive loss, net of tax amount	-10,378	762	-524	-13,035
Comprehensive income (loss), Before-tax Amount	8,292	11,195	-9,490	16,189
Comprehensive income tax	-3,170	135	266,195	-629
Comprehensive income (loss), Net of Tax Amount	$5,122	$11,330	$256,705	$15,560

Consolidated_Balance_Sheet_Una

Consolidated Balance Sheet (Unaudited) (USD $)	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2012
In Thousands, unless otherwise specified
ASSETS	'	'	'
Cash and due from banks	$70,986	$66,536	$57,270
Interest-bearing deposits in banks	131,147	124,613	119,355
Short-term investments	62,000	60,000	45,000
Cash and cash equivalents	264,133	251,149	221,625
Securities available for sale	1,963,424	1,834,593	1,761,994
Securities held to maturity (fair value $214,651, $261,131 and $281,336)	205,613	244,184	262,648
Mortgage loans held for sale	11,987	28,821	30,571
Loans, net of unearned income	4,267,067	4,175,008	4,137,845
Less allowance for loan losses	-80,372	-107,137	-107,642
Loans, net	4,186,695	4,067,871	4,030,203
Assets covered by loss sharing agreements with the FDIC	31,207	47,467	53,070
Premises and equipment, net	165,993	168,920	170,532
Bank owned life insurance	80,537	81,867	81,574
Accrued interest receivable	18,199	18,659	19,133
Other intangible assets	3,888	5,510	6,237
Foreclosed property	4,467	18,264	26,958
Net deferred tax asset	269,784	'	'
Other assets	37,366	34,954	34,690
Total assets	7,243,293	6,802,259	6,699,235
Deposits:	'	'	'
Demand	1,418,782	1,252,605	1,210,703
NOW	1,279,134	1,316,453	1,184,341
Money market	1,197,495	1,149,912	1,126,312
Savings	249,044	227,308	222,431
Time:	'	'	'
Less than $100,000	925,089	1,055,271	1,123,672
Greater than $100,000	624,019	705,558	731,766
Brokered	419,344	245,033	223,474
Total deposits	6,112,907	5,952,140	5,822,699
Short-term borrowings	53,769	52,574	53,243
Federal Home Loan Bank advances	125	40,125	50,125
Long-term debt	129,865	124,805	120,285
Unsettled securities purchases	11,610	'	24,319
Accrued expenses and other liabilities	82,800	51,210	43,309
Total liabilities	6,391,076	6,220,854	6,113,980
Shareholders' equity:	'	'	'
Common stock	45,223	42,424	42,393
Common stock issuable; 242,262, 133,238 and 129,270 shares	3,979	3,119	3,247
Capital surplus	1,077,536	1,057,951	1,056,998
Accumulated deficit	-461,090	-709,153	-711,369
Accumulated other comprehensive loss	-24,164	-23,640	-16,344
Total shareholders' equity	852,217	581,405	585,255
Total liabilities and shareholders' equity	7,243,293	6,802,259	6,699,235
Series A Preferred Stock	'	'	'
Shareholders' equity:	'	'	'
Preferred stock	217	217	217
Total shareholders' equity	217	217	217
Series B Preferred Stock	'	'	'
Shareholders' equity:	'	'	'
Preferred stock	179,714	178,557	178,183
Total shareholders' equity	179,714	178,557	178,183
Series D Preferred Stock	'	'	'
Shareholders' equity:	'	'	'
Preferred stock	16,613	16,613	16,613
Total shareholders' equity	16,613	16,613	16,613
Non-Voting Common Stock	'	'	'
Shareholders' equity:	'	'	'
Common stock	14,189	15,317	15,317
Total shareholders' equity	$14,189	$15,317	$15,317

Consolidated_Balance_Sheet_Una1

Consolidated Balance Sheet (Unaudited) (Parentheticals) (USD $)	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2012
In Thousands, except Share data, unless otherwise specified
Held to maturity, fair value	$214,651	$261,131	$281,336
Preferred stock, par value	$1	$1	$1
Preferred stock, shares authorized	10,000,000	10,000,000	10,000,000
Common stock, par value	$1	$1	$1
Common stock, shares authorized	10,000,000	10,000,000	10,000,000
Common stock, shares issued	45,222,839	42,423,870	42,393,319
Common stock, shares outstanding	45,222,839	42,423,870	42,393,319
Common stock issuable, shares	242,262	133,238	129,270
Series A Preferred Stock	'	'	'
Preferred stock, par value	$10	$10	$10
Preferred stock, shares issued	21,700	21,700	21,700
Preferred stock, shares outstanding	21,700	21,700	21,700
Series B Preferred Stock	'	'	'
Preferred stock, par value	$1,000	$1,000	$1,000
Preferred stock, shares issued	180,000	180,000	180,000
Preferred stock, shares outstanding	180,000	180,000	180,000
Series D Preferred Stock	'	'	'
Preferred stock, par value	$1,000	$1,000	$1,000
Preferred stock, shares issued	16,613	16,613	16,613
Preferred stock, shares outstanding	16,613	16,613	16,613
Non-Voting Common Stock	'	'	'
Common stock, par value	$1	$1	$1
Common stock, shares authorized	30,000,000	30,000,000	30,000,000
Common stock, shares issued	14,189,006	15,316,794	15,316,794
Common stock, shares outstanding	14,189,006	15,316,794	15,316,794

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, 2011	$217	$177,092	$16,613	$15,914	$41,647	$3,233	$1,054,940	($730,861)	($3,309)	$575,486
Increase (Decrease) in Stockholders' Equity [Roll Forward]	'	'	'	'	'	'	'	'	'	'
Net income	'	'	'	'	'	'	'	28,595	'	28,595
Other comprehensive loss	'	'	'	'	'	'	'	'	-13,035	-13,035
Common stock issued to dividend reinvestment plan and to employee benefit plans	'	'	'	'	86	'	616	'	'	702
Conversion of non-voting common stock	'	'	'	-597	597	'	'	'	'	'
Amortization of stock options and restricted stock awards	'	'	'	'	'	'	1,412	'	'	1,412
Vesting of restricted stock	'	'	'	'	60	155	-257	'	'	-42
Deferred compensation plan, net, including dividend equivalents	'	'	'	'	'	149	'	'	'	149
Shares issued from deferred compensation plan	'	'	'	'	3	-290	287	'	'	'
Preferred stock dividends:	'	'	'	'	'	'	'	'	'	'
Series A	'	'	'	'	'	'	'	-9	'	-9
Series B	'	1,091	'	'	'	'	'	-7,841	'	-6,750
Series D	'	'	'	'	'	'	'	-1,253	'	-1,253
Balance at Sep. 30, 2012	217	178,183	16,613	15,317	42,393	3,247	1,056,998	-711,369	-16,344	585,255
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 loss	'	'	'	'	'	'	'	'	-524	-524
Common stock issued to dividend reinvestment plan and to employee benefit plans	'	'	'	'	50	'	532	'	'	582
Conversion of non-voting common stock	'	'	'	-1,128	1,128	'	'	'	'	'
Warrant exercise	'	'	'	'	1,551	'	17,838	'	'	19,389
Amortization of stock options and restricted stock awards	'	'	'	'	'	'	2,168	'	'	2,168
Vesting of restricted stock	'	'	'	'	52	1,693	-1,900	'	'	-155
Deferred compensation plan, net, including dividend equivalents	'	'	'	'	'	132	'	'	'	132
Shares issued from deferred compensation plan	'	'	'	'	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

Consolidated_Statement_of_Chan1

Consolidated Statement of Changes in Shareholders' Equity (Unaudited) (Parentheticals)	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
Consolidated Statement Of Changes In Shareholders' Equity [Abstract]	'	'
Common stock issued to dividend reinvestment plan and employee benefit plans	49,830	87,086
Conversion of non-voting common stock to voting shares	1,127,788	597,415
Number of warrant exercise	1,551,126	'
Vesting of restricted stock, shares issued	51,995	59,081
Vesting of restricted stock, shares deferred	115,664	36,673
Shares issued from deferred compensation plan	18,230	2,637

Consolidated_Statement_of_Cash

Consolidated Statement of Cash Flows (Unaudited) (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012
Operating activities:	'	'
Net income	$257,229	$28,595
Adjustments to reconcile net income to net cash provided by operating activities:	'	'
Depreciation, amortization and accretion	20,847	24,478
Provision for loan losses	62,500	48,500
Stock based compensation	2,168	1,412
Deferred income tax benefit	-250,054	'
Securities gains, net	-116	-7,047
Losses and write downs on sales of other real estate owned	5,141	5,687
Loss on prepayment of borrowings	'	6,681
Changes in assets and liabilities:	'	'
Other assets and accrued interest receivable	16,225	40,708
Accrued expenses and other liabilities	31,562	-3,108
Mortgage loans held for sale	16,834	-6,690
Net cash provided by operating activities	162,336	139,216
Investment securities held-to-maturity:	'	'
Proceeds from maturities and calls	45,578	65,040
Purchases	-8,481	'
Investment securities available-for-sale:	'	'
Proceeds from sales	20,751	371,103
Proceeds from maturities and calls	399,304	492,768
Purchases	-574,020	-818,048
Net increase in loans	-288,514	-104,806
Proceeds from note sales	91,913	'
Collections from FDIC under loss sharing agreements	5,121	7,301
Proceeds from sales of premises and equipment	3,550	667
Purchases of premises and equipment	-7,533	-3,231
Proceeds from sale of other real estate	24,049	22,309
Net cash (used in) provided by investing activities	-288,282	33,103
Financing activities:	'	'
Net change in deposits	160,767	-275,284
Net change in short-term borrowings	1,195	-53,814
Proceeds from Federal Home Loan Bank advances	650,000	1,629,000
Settlement of Federal Home Loan Bank advances	-690,000	-1,621,701
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	582	702
Proceeds from warrant exercise	19,389	'
Cash dividends on preferred stock	-8,003	-8,013
Net cash provided by (used in) financing activities	138,930	-329,110
Net change in cash and cash equivalents	12,984	-156,791
Cash and cash equivalents at beginning of period	251,149	378,416
Cash and cash equivalents at end of period	264,133	221,625
Cash paid (received) during the period for:	'	'
Interest	26,517	32,668
Income taxes	2,361	-27,103
Unsettled securities purchases	11,610	24,319
Transfers of loans to foreclosed property	$18,460	$26,854

Accounting_Policies

Accounting Policies	9 Months Ended
	Sep. 30, 2013
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, 2012.
	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.

Accounting_Standards_Updates_a

Accounting Standards Updates and Recently Adopted Standards	9 Months Ended
	Sep. 30, 2013
Accounting Standards Updates [Abstract]	'
Accounting Standards Updates and Recently Adopted Standards	'
	Note 2 –Accounting Standards Updates and Recently Adopted Standards
	In January 2013, the FASB issued Accounting Standards Update No. 2013-01, Clarifying the Scope of Disclosures about Offsetting Assets and Liabilities.  This ASU limits the scope of the new balance sheet offsetting disclosures to derivatives, repurchase agreements, and securities lending transactions to the extent that they are (1) offset in the financial statements or (2) subject to an enforceable master netting agreement.  The disclosure requirements were effective for annual reporting periods beginning on or after January 1, 2013 and interim periods within those annual periods.  This guidance did not have a material impact on United’s financial position or results of operations, and resulted in additional disclosures.
	In February 2013, the FASB issued Accounting Standards Update No. 2013-02, Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income.  The amendments in this update require an entity to provide information about the amounts reclassified out of accumulated other comprehensive income by component and by the respective line items of net income. The standard was effective for fiscal years, and interim periods within those years, beginning after December 15, 2012.  This guidance did not have a material impact on United’s financial position or results of operations, and resulted in additional disclosures.
	In July 2013, the FASB issued Accounting Standards Update No. 2013-10, Inclusion of the Fed Funds Effective Swap Rate (or Overnight Index Swap Rate) as a Benchmark Interest Rate for Hedge Accounting Purposes.  The amendments in this update permit the Fed Funds Effective Swap Rate (OIS) to be used as a benchmark interest rate for hedge accounting in addition to UST and LIBOR. The amendments also remove the restriction on using different benchmark rates for similar hedges. The standard is effective prospectively for qualifying new or re-designated hedging relationships entered into on or after July 17, 2013.  This guidance did not have a material impact on United’s financial position, results of operations or disclosures.
	In July 2013, the FASB issued Accounting Standards Update 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.  This ASU provides explicit guidance on the financial statement presentation of an unrecognized tax benefit when a net operating loss carryforward, a similar tax loss, or a tax credit carryforward exists.  The amendments in this update are effective for fiscal years, and interim periods within those years, beginning after December 15, 2013.  Since United has both unrecognized tax benefits and net operating loss and tax credit carryforwards, this ASU could have an impact on United’s financial position, results of operations or disclosures; however, United does not expect the impact to be material to United’s financial position, results of operations or disclosures.

Offsetting_Assets_and_Liabilit

Offsetting Assets and Liabilities	9 Months Ended
	Sep. 30, 2013
Offsetting [Abstract]	'
Offsetting Assets and Liabilities	'
	Note 3 – Offsetting Assets and Liabilities
	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.
	United also enters into derivative transactions that are subject to master netting arrangements; however there were no offsetting positions with the same counterparty at September 30, 2013, December 31, 2012 or September 30, 2012.
	The following table presents a summary of amounts outstanding under master netting agreements as of September 30, 2013 and December 31, 2012, and September 30, 2012 (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-13	Assets			Sheet			Balance		Instruments		Received		Net Amount
	Repurchase agreements / reverse repurchase agreements	$	405,000		$	(350,000	)	$	55,000	$	-	$	-	$	55,000
	Derivatives		8,092			-			8,092		-		-		8,092
	Total	$	413,092		$	(350,000	)	$	63,092	$	-	$	-	$	63,092
	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		Pledged		Net Amount
	Repurchase agreements / reverse repurchase agreements	$	350,000		$	(350,000	)	$	-	$	-	$	-	$	-
	Derivatives		37,269			-			37,269		-		25,579		11,690
	Total	$	387,269		$	(350,000	)	$	37,269	$	-	$	25,579	$	11,690
	Weighted average interest rate of repurchase agreements		0.28	%
					Gross
		Gross			Amounts					Gross Amounts not Offset
		Amounts of			Offset on the					in the Balance Sheet
		Recognized			Balance			Net Asset		Financial		Collateral
	31-Dec-12	Assets			Sheet			Balance		Instruments		Received		Net Amount
	Repurchase agreements / reverse repurchase agreements	$	325,000		$	(265,000	)	$	60,000	$	-	$	-	$	60,000
	Securities lending transactions		50,000			(50,000	)		-		-		-		-
	Derivatives		658			-			658		-		-		658
	Total	$	375,658		$	(315,000	)	$	60,658	$	-	$	-	$	60,658
	Weighted average interest rate of reverse repurchase agreements		1.18	%
					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	$	265,000		$	(265,000	)	$	-	$	-	$	-	$	-
	Securities lending transactions		50,000			(50,000	)		-		-		-		-
	Derivatives		12,543			-			12,543		-		11,493		1,050
	Total	$	327,543		$	(315,000	)	$	12,543	$	-	$	11,493	$	1,050
	Weighted average interest rate of repurchase agreements		0.43	%
					Gross
		Gross			Amounts					Gross Amounts not Offset
		Amounts of			Offset on the					in the Balance Sheet
		Recognized			Balance			Net Asset		Financial		Collateral
	30-Sep-12	Assets			Sheet			Balance		Instruments		Received		Net Amount
	Repurchase agreements / reverse repurchase agreements	$	270,000		$	(225,000	)	$	45,000	$	-	$	-	$	45,000
	Securities lending transactions		100,000			(100,000	)		-		-		-		-
	Derivatives		778			-			778		-		-		778
	Total	$	370,778		$	(325,000	)	$	45,778	$	-	$	-	$	45,778
	Weighted average interest rate of reverse repurchase agreements		1.19	%
					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	$	225,000		$	(225,000	)	$	-	$	-	$	-	$	-
	Securities lending transactions		100,000			(100,000	)		-		-		-		-
	Derivatives		10,363			-			10,363		-		11,126		(763	)
	Total	$	335,363		$	(325,000	)	$	10,363	$	-	$	11,126	$	(763	)
	Weighted average interest rate of repurchase agreements		0.41	%

Securities

Securities	9 Months Ended
	Sep. 30, 2013
Investment Securities [Abstract]	'
Securities	'
	Note 4 – Securities
	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 month periods ended September 30, 2013 and 2012 (in thousands).
		Three Months Ended				Nine Months Ended
		September 30,				September 30,
		2013		2012		2013		2012
	Proceeds from sales	$	5,000	$	-	$	20,751	$	371,103
	Gross gains on sales	$	-	$	-	$	116	$	7,047
	Gross losses on sales		-		-		-		-
	Net gains on sales of securities	$	-	$	-	$	116	$	7,047
	Income tax expense attributable to sales	$	-	$	-	$	45	$	2,631
	Securities with a carrying value of $1.34 billion, $1.40 billion, and $1.28 billion were pledged to secure public deposits and other secured borrowings at September 30, 2013, December 31, 2012 and September 30, 2012, respectively.  Substantial borrowing capacity remains available under borrowing arrangements with the Federal Home Loan Bank of Atlanta (“FHLB”) with currently pledged securities.
	Securities are classified as held-to-maturity when management has the positive intent and ability to hold them until maturity.  Securities held-to-maturity are carried at amortized cost.
	The amortized cost, gross unrealized gains and losses and fair value of securities held-to-maturity at September 30, 2013, December 31, 2012 and September 30, 2012 are as follows (in thousands).
				Gross		Gross
		Amortized		Unrealized		Unrealized		Fair
	As of September 30, 2013	Cost		Gains		Losses		Value
	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
	As of December 31, 2012
	State and political subdivisions	$	51,780	$	5,486	$	-	$	57,266
	Mortgage-backed securities(1)		192,404		11,461		-		203,865
	Total	$	244,184	$	16,947	$	-	$	261,131
	As of September 30, 2012
	State and political subdivisions	$	51,790	$	5,795	$	-	$	57,585
	Mortgage-backed securities(1)		210,858		12,893		-		223,751
	Total	$	262,648	$	18,688	$	-	$	281,336
	(1)All are residential type mortgage-backed securities
	The cost basis, unrealized gains and losses, and fair value of securities available-for-sale at September 30, 2013, December 31, 2012 and September 30, 2012 are presented below (in thousands).
				Gross		Gross
		Amortized		Unrealized		Unrealized		Fair
	As of September 30, 2013	Cost		Gains		Losses		Value
	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
	As of December 31, 2012
	State and political subdivisions	$	27,717	$	1,354	$	19	$	29,052
	Mortgage-backed securities (1)		1,408,042		22,552		2,092		1,428,502
	Corporate bonds		169,783		1,052		7,173		163,662
	Asset-backed securities		209,411		1,894		749		210,556
	Other		2,821		-		-		2,821
	Total	$	1,817,774	$	26,852	$	10,033	$	1,834,593
	As of September 30, 2012
	State and political subdivisions	$	27,403	$	1,478	$	3	$	28,878
	Mortgage-backed securities (1)		1,356,002		27,689		751		1,382,940
	Corporate bonds		148,315		450		5,613		143,152
	Asset-backed securities		204,522		713		806		204,429
	Other		2,595		-		-		2,595
	Total	$	1,738,837	$	30,330	$	7,173	$	1,761,994
	(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, 2013 (thousands).  As of December 31, 2012 and September 30, 2012, there were no held-to-maturity securities in an unrealized loss position.
		Less than 12 Months				12 Months or More				Total
	As of September 30, 2013	Fair Value		Unrealized		Fair Value		Unrealized		Fair Value		Unrealized
				Loss				Loss				Loss
	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
	The following table summarizes available-for-sale securities in an unrealized loss position as of September 30, 2013, December 31, 2012 and September 30, 2012 (in thousands).
		Less than 12 Months				12 Months or More				Total
	As of September 30, 2013	Fair Value		Unrealized		Fair Value		Unrealized		Fair Value		Unrealized
Loss				Loss				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
As of December 31, 2012
State and political subdivisions	$	3,674	$	17	$	10	$	2	$	3,684	$	19
Mortgage-backed securities		326,485		2,092		-		-		326,485		2,092
Corporate bonds		21,248		136		93,903		7,037		115,151		7,173
Asset-backed securities		82,188		749		-		-		82,188		749
Total unrealized loss position	$	433,595	$	2,994	$	93,913	$	7,039	$	527,508	$	10,033
As of September 30, 2012
State and political subdivisions	$	-	$	-	$	12	$	3	$	12	$	3
Mortgage-backed securities		105,296		741		17,059		10		122,355		751
Corporate bonds		4,893		10		113,590		5,603		118,483		5,613
Asset-backed securities		90,766		806		-		-		90,766		806
Total unrealized loss position	$	200,955	$	1,557	$	130,661	$	5,616	$	331,616	$	7,173
At September 30, 2013, there were 133 available-for-sale securities and seven 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, 2013, December 31, 2012 and September 30, 2012 were primarily attributable 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.
Management evaluates securities for other-than-temporary impairment at least 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, 2013 or 2012.
The amortized cost and fair value of held-to-maturity and available-for-sale securities at September 30, 2013, 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
State and political subdivisions:
Within 1 year	$	2,832	$	2,876	$	-	$	-
1 to 5 years		16,485		17,144		12,472		13,267
5 to 10 years		2,616		2,616		25,062		26,322
More than 10 years		848		888		14,211		14,826
		22,781		23,524		51,745		54,415
Corporate bonds:
1 to 5 years		38,245		38,388		-		-
5 to 10 years		206,377		198,370		-		-
More than 10 years		10,769		10,193		-		-
		255,391		246,951		-		-
Asset-backed securities:
1 to 5 years		72,616		72,188		-		-
5 to 10 years		145,680		146,029		-		-
More than 10 years		88,665		89,021		-		-
		306,961		307,238		-		-
Other:
More than 10 years		2,394		2,394		-		-
		2,394		2,394		-		-
Total securities other than mortgage-backed securities:
Within 1 year		2,832		2,876		-		-
1 to 5 years		127,346		127,720		12,472		13,267
5 to 10 years		354,673		347,015		25,062		26,322
More than 10 years		102,676		102,496		14,211		14,826
Mortgage-backed securities		1,390,280		1,383,317		153,868		160,236
	$	1,977,807	$	1,963,424	$	205,613	$	214,651
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.

Loans_and_Allowance_for_Loan_L

Loans and Allowance for Loan Losses	9 Months Ended
	Sep. 30, 2013
Loans and Allowance For Loan Losses [Abstract]	'
Loans and Allowance for Loan Losses	'
	Note 5 – Loans and Allowance for Loan Losses
	Major classifications of loans as of September 30, 2013, December 31, 2012 and September 30, 2012, are summarized as follows (in thousands).
		September 30,			December 31,			September 30,
		2013			2012			2012
	Commercial (secured by real estate)	$	1,742,771		$	1,813,365		$	1,819,155
	Commercial & industrial		457,414			458,246			459,997
	Commercial construction		137,146			154,769			160,765
	Total commercial		2,337,331			2,426,380			2,439,917
	Residential mortgage		1,309,295			1,214,203			1,174,236
	Residential construction		317,789			381,677			388,742
	Consumer installment		302,652			152,748			134,950
	Total loans		4,267,067			4,175,008			4,137,845
	Less allowance for loan losses		(80,372	)		(107,137	)		(107,642	)
	Loans, net	$	4,186,695		$	4,067,871		$	4,030,203
	United’s wholly-owned Georgia banking subsidiary, United Community Bank (the “Bank”) makes loans and extends credit to individuals and a variety of firms and corporations located primarily in counties in north Georgia, the Atlanta, Georgia metropolitan statistical area, the Gainesville, Georgia metropolitan statistical area, coastal Georgia, western North Carolina, east and central Tennessee and the Greenville, South Carolina metropolitan statistical area.  Although the Bank has a diversified loan portfolio, a substantial portion of its loan portfolio is collateralized by improved and unimproved real estate and is dependent upon the real estate market.  Home equity lines of credit are included in the residential mortgage category and are primarily responsible for the growth in that loan class compared to prior periods.  Indirect auto loans are included in the consumer installment category above and contributed to the significant growth in that class of loans.
	Changes in the allowance for loan losses for the three and nine months ended September 30, 2013 and 2012 are summarized as follows (in thousands).
		Three Months Ended						Nine Months Ended
		September 30,						September 30,
		2013			2012			2013			2012
	Balance beginning of period	$	81,845		$	112,705		$	107,137		$	114,468
	Provision for loan losses		3,000			15,500			62,500			48,500
	Charge-offs:
	Commercial (secured by real estate)		1,928			8,445			34,122			16,791
	Commercial & industrial		826			343			18,581			1,987
	Commercial construction		134			3,198			6,484			3,650
	Residential mortgage		1,306			3,575			10,380			13,356
	Residential construction		1,096			6,231			22,608			21,706
	Consumer installment		419			442			1,691			1,603
	Total loans charged-off		5,709			22,234			93,866			59,093
	Recoveries:
	Commercial (secured by real estate)		71			271			1,556			571
	Commercial & industrial		690			602			1,368			802
	Commercial construction		1			8			60			38
	Residential mortgage		231			48			649			592
	Residential construction		24			555			57			1,153
	Consumer installment		219			187			911			611
	Total recoveries		1,236			1,671			4,601			3,767
	Net charge-offs		4,473			20,563			89,265			55,326
	Balance end of period	$	80,372		$	107,642		$	80,372		$	107,642
	During the second quarter of 2013, United executed a plan to accelerate the disposition of classified assets including performing classified loans, nonperforming loans and foreclosed properties.  The purpose of the accelerated classified asset disposition plan was to resolve legacy credit problems remaining from the recent financial crisis and to accelerate the improvement of United’s credit measures toward pre-crisis levels.  The classified asset sales included individual note and foreclosed property sales and a large bulk sale of classified assets to a single investor.  The bulk sale included performing and nonperforming classified loans and foreclosed properties.  The assets were divided into four separate pools that were bid for separately by potential buyers.  A single purchaser was the high bidder for each of the four pools.  The table below shows the allocation among impaired loans, loans that were not considered impaired and foreclosed properties, including United’s recorded investment in those assets, the sales proceeds and the resulting net charge-offs of assets sold in the bulk sale transaction (in thousands).
		Recorded Investment			Net Sales			Net
					Proceeds			Charge-Off
	Loans considered impaired	$	96,829		$	56,298		$	(40,531	)
	Loans not considered impaired		25,687			15,227			(10,460	)
	Foreclosed properties		8,398			5,933			(2,465	)
	Total assets sold	$	130,914		$	77,458		$	(53,456	)
	The loans considered impaired in the table above were assigned specific reserves of $6.86 million in the most recent analysis of the allowance for loan losses prior to the sale.  Because the assets were sold at liquidation prices in a bulk transaction with no recourse, the sales price was generally lower than the appraised value of the foreclosed properties and loan collateral.  Although the classified asset sales increased charge-offs during the second quarter of 2013, they accomplished management’s goal of moving classified asset levels toward the pre-crisis range.
	United considers all loans that are on nonaccrual with a balance of $500,000 or greater and all troubled debt restructurings (“TDRs”) to be impaired.  In addition, United reviews all accruing substandard loans greater than $2 million to determine if the loan is impaired.  A loan is considered 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 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 impaired loans for the amount of calculated impairment.  Interest payments received on 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 impairment quarterly and specific reserves are established in the allowance for loan losses for any measured impairment.
	Each quarter, United’s management prepares an analysis of the allowance for loan losses to determine the appropriate balance that measures and quantifies the amount of loss inherent in the loan portfolio.  The allowance is comprised of specific reserves which are determined as described above, general reserves which are determined based on historical loss experience as adjusted for current trends and economic conditions and an unallocated portion.  United uses eight quarters of historical loss experience weighted toward the most recent quarters to determine the loss factors to be used.  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.  The weighted average is 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 uses annualized charge-off rates under the broad assumption that losses inherent in the loan portfolio will generally be resolved within twelve months.  Problem loans that are not resolved within twelve months are often larger loans that are more complex in nature requiring more time to either rehabilitate or work out of the bank.  These credits are subject to impairment testing and specific reserves.
	The weighted loss factor results for each quarter are added together and divided by 36 (the sum of 1, 2, 3, 4, 5, 6, 7 and 8) to arrive at the weighted average historical loss factor for each category of loans.  United calculates loss factors for each major category of loans (commercial real estate, commercial & industrial, commercial construction, residential construction and consumer installment) except residential mortgage real estate loans which are further divided into home equity first lien, home equity junior lien and all other residential mortgage real estate loans and a loss factor is calculated for each category.
	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 render the use of annualized charge-off rates to be inappropriate, and other macro environmental factors such as changes in unemployment rates, lease vacancy rates and trends in property values and absorption rates.
	To validate the results, management closely monitors the loan portfolio to determine the range of potential losses based upon probability of default and losses upon default for each major loan category.  The potential range of losses resulting from this analysis is compared to the resulting loss factors for each major loan category to validate the loss factors and determine if qualitative adjustments are necessary.  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.
	The following table presents the balance and activity in the allowance for loan losses by portfolio segment and the recorded investment in loans by portfolio segment based on the impairment method as of September 30, 2013, December 31, 2012 and September 30, 2012 (in thousands).
	Nine Months Ended September 30, 2013	Commercial (Secured by Real Estate)			Commercial & Industrial			Commercial Construction			Residential Mortgage			Residential Construction			Consumer Installment			Unallocated			Total
	Allowance for loan losses:
	Beginning balance	$	27,847		$	5,537		$	8,389		$	26,642		$	26,662		$	2,747		$	9,313		$	107,137
	Charge-offs		(34,122	)		(18,581	)		(6,484	)		(10,380	)		(22,608	)		(1,691	)		-			(93,866	)
	Recoveries		1,556			1,368			60			649			57			911			-			4,601
	Provision		28,854			19,608			1,853			3,791			10,231			450			(2,287	)		62,500
	Ending balance	$	24,135		$	7,932		$	3,818		$	20,702		$	14,342		$	2,417		$	7,026		$	80,372
	Ending allowance attributable to loans:
	Individually evaluated for impairment	$	1,975		$	546		$	150		$	2,008		$	662		$	11		$	-		$	5,352
	Collectively evaluated for impairment		22,160			7,386			3,668			18,694			13,680			2,406			7,026			75,020
Total ending allowance balance	$	24,135		$	7,932		$	3,818		$	20,702		$	14,342		$	2,417		$	7,026		$	80,372
Loans:
Individually evaluated for impairment	$	54,463		$	4,105		$	13,478		$	18,970		$	14,121		$	204		$	-		$	105,341
Collectively evaluated for impairment		1,688,308			453,309			123,668			1,290,325			303,668			302,448			-			4,161,726
Total loans	$	1,742,771		$	457,414		$	137,146		$	1,309,295		$	317,789		$	302,652		$	-		$	4,267,067
31-Dec-12
Allowance for loan losses:
Ending allowance attributable to loans:
Individually evaluated for impairment	$	6,106		$	490		$	2,239		$	2,165		$	625		$	19		$	-		$	11,644
Collectively evaluated for impairment		21,741			5,047			6,150			24,477			26,037			2,728			9,313			95,493
Total ending allowance balance	$	27,847		$	5,537		$	8,389		$	26,642		$	26,662		$	2,747		$	9,313		$	107,137
Loans:
Individually evaluated for impairment	$	104,409		$	51,501		$	40,168		$	22,247		$	34,055		$	430		$	-		$	252,810
Collectively evaluated for impairment		1,708,956			406,745			114,601			1,191,956			347,622			152,318			-			3,922,198
Total loans	$	1,813,365		$	458,246		$	154,769		$	1,214,203		$	381,677		$	152,748		$	-		$	4,175,008
Nine Months Ended September 30, 2012
Beginning balance	$	31,644		$	5,681		$	6,097		$	29,076		$	30,379		$	2,124		$	9,467		$	114,468
Charge-offs		(16,791	)		(1,987	)		(3,650	)		(13,356	)		(21,706	)		(1,603	)		-			(59,093	)
Recoveries		571			802			38			592			1,153			611			-			3,767
Provision		11,351			362			6,101			11,163			18,233			1,738			(448	)		48,500
Ending balance	$	26,775		$	4,858		$	8,586		$	27,475		$	28,059		$	2,870		$	9,019		$	107,642
Ending allowance attributable to loans:
Individually evaluated for impairment	$	6,692		$	725		$	2,289		$	1,856		$	1,270		$	21		$	-		$	12,853
Collectively evaluated for impairment		20,083			4,133			6,297			25,619			26,789			2,849			9,019			94,789
Total ending allowance balance	$	26,775		$	4,858		$	8,586		$	27,475		$	28,059		$	2,870		$	9,019		$	107,642
Loans:
Individually evaluated for impairment	$	119,023		$	53,531		$	42,249		$	21,678		$	31,576		$	498		$	-		$	268,555
Collectively evaluated for impairment		1,700,132			406,466			118,516			1,152,558			357,166			134,452			-			3,869,290
Total loans	$	1,819,155		$	459,997		$	160,765		$	1,174,236		$	388,742		$	134,950		$	-		$	4,137,845
When a loan officer determines that a loan is uncollectible, he or she is responsible for recommending to the local bank president 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.  The 10 largest charge-offs are reported quarterly to the Board of Directors.
Generally, closed-end retail loans (installment and residential mortgage loans) past due 90 cumulative days are charged-off unless the loan is well secured and in process of collection (within the next 90 days).  Open-end (revolving) retail loans which are past due 90 cumulative days from their contractual due date are generally charged-off.
At September 30, 2013, December 31, 2012 and September 30, 2012, loans with a carrying value of $1.94 billion, $1.90 billion and $1.78 billion, respectively, were pledged as collateral to secure FHLB advances and other contingent funding sources.
The average balances of impaired loans and income recognized on impaired loans while they were considered impaired is presented below for the three and nine months ended September 30, 2013 and 2012 (in thousands).
	2013									2012
Three Months Ended September 30,	Average			Interest			Cash Basis			Average			Interest			Cash Basis
	Balance			Revenue			Interest			Balance			Revenue			Interest
				Recognized			Revenue						Recognized			Revenue
				During			Received						During			Received
				Impairment									Impairment
Commercial (secured by real estate)	$	55,303		$	1,336		$	1,461		$	124,681		$	1,218		$	1,311
Commercial & industrial		4,189			114			104			43,764			141			611
Commercial construction		13,501			244			246			43,488			238			255
Total commercial		72,993			1,694			1,811			211,933			1,597			2,177
Residential mortgage		19,070			436			446			22,920			254			274
Residential construction		14,136			346			307			40,653			252			473
Consumer installment		214			7			7			454			7			8
Total	$	106,413		$	2,483		$	2,571		$	275,960		$	2,110		$	2,932
Nine Months Ended September 30,
Commercial (secured by real estate)	$	76,060		$	2,913		$	3,126		$	121,223		$	3,883		$	4,128
Commercial & industrial		8,821			333			803			47,263			450			1,921
Commercial construction		14,620			509			593			40,202			722			1,016
Total commercial		99,501			3,755			4,522			208,688			5,055			7,065
Residential mortgage		19,906			882			862			23,547			734			832
Residential construction		14,219			850			882			48,679			989			1,422
Consumer installment		228			17			17			393			20			21
Total	$	133,854		$	5,504		$	6,283		$	281,307		$	6,798		$	9,340
The following table presents loans individually evaluated for impairment by class of loans as of September 30, 2013, December 31, 2012 and September 30, 2012 (in thousands).
	30-Sep-13									31-Dec-12									30-Sep-12
	Unpaid			Recorded			Allowance			Unpaid Principal Balance			Recorded Investment			Allowance			Unpaid Principal Balance			Recorded Investment			Allowance
	Principal			Investment			for Loan									for Loan									for Loan
	Balance						Losses									Losses Allocated									Losses Allocated
							Allocated
With no related allowance recorded:
Commercial (secured by real estate)	$	25,066		$	20,384		$	-		$	74,066		$	62,609		$	-		$	85,137		$	77,801		$	-
Commercial & industrial		235			235			-			74,572			49,572			-			76,247			51,247			-
Commercial construction		1,127			1,127			-			23,938			17,305			-			17,739			16,656			-
Total commercial		26,428			21,746			-			172,576			129,486			-			179,123			145,704			-
Residential mortgage		4,768			3,729			-			10,336			8,383			-			11,091			8,746			-
Residential construction		9,101			7,364			-			35,439			19,093			-			32,228			19,601			-
Consumer installment		-			-			-			-			-			-			62			62			-
Total with no related allowance recorded		40,297			32,839			-			218,351			156,962			-			222,504			174,113			-
With an allowance recorded:
Commercial (secured by real estate)		36,183			34,079			1,975			44,395			41,800			6,106			44,590			41,222			6,692
Commercial & industrial		4,002			3,870			546			2,170			1,929			490			2,321			2,284			725
Commercial construction		12,430			12,351			150			23,746			22,863			2,239			26,476			25,593			2,289
Total commercial		52,615			50,300			2,671			70,311			66,592			8,835			73,387			69,099			9,706
Residential mortgage		15,598			15,241			2,008			14,267			13,864			2,165			13,410			12,932			1,856
Residential construction		7,257			6,757			662			15,412			14,962			625			13,105			11,975			1,270
Consumer installment		214			204			11			441			430			19			444			436			21
Total with an allowance recorded		75,684			72,502			5,352			100,431			95,848			11,644			100,346			94,442			12,853
Total	$	115,981		$	105,341		$	5,352		$	318,782		$	252,810		$	11,644		$	322,850		$	268,555		$	12,853
There were no loans more than 90 days past due and still accruing interest at September 30, 2013, December 31, 2012 or September 30, 2012.  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 following table presents the recorded investment (unpaid principal less amounts charged-off) in nonaccrual loans by loan class as of September 30, 2013, December 31, 2012 and September 30, 2102 (in thousands).
	Nonaccrual Loans
	September 30,			December 31,			September 30,
	2013			2012			2012
Commercial (secured by real estate)	$	8,015		$	22,148		$	25,896
Commercial & industrial		609			31,817			32,678
Commercial construction		343			23,843			18,590
Total commercial		8,967			77,808			77,164
Residential mortgage		12,504			12,589			13,996
Residential construction		4,097			18,702			22,935
Consumer installment		520			795			906
Total	$	26,088		$	109,894		$	115,001
Balance as a percentage of unpaid principal		61.6	%		69.5	%		68.8	%
The following table presents the aging of the recorded investment in past due loans as of September 30, 2013, December 31, 2012 and September 30, 2012 by class of loans (in thousands).
	Loans Past Due												Loans Not
As of September 30, 2013	30 - 59 Days			60 - 89 Days			> 90 Days			Total			Past Due			Total
Commercial (secured by real estate)	$	2,026		$	1,283		$	2,429		$	5,738		$	1,737,033		$	1,742,771
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		8,849			3,077			4,652			16,578			1,292,717			1,309,295
Residential construction		3,705			418			924			5,047			312,742			317,789
Consumer installment		853			103			149			1,105			301,547			302,652
Total loans	$	16,212		$	5,072		$	8,482		$	29,766		$	4,237,301		$	4,267,067
As of December 31, 2012
Commercial (secured by real estate)	$	8,106		$	3,232		$	7,476		$	18,814		$	1,794,551		$	1,813,365
Commercial & industrial		1,565			429			867			2,861			455,385			458,246
Commercial construction		2,216			-			4,490			6,706			148,063			154,769
Total commercial		11,887			3,661			12,833			28,381			2,397,999			2,426,380
Residential mortgage		12,292			2,426			4,848			19,566			1,194,637			1,214,203
Residential construction		2,233			1,934			5,159			9,326			372,351			381,677
Consumer installment		1,320			245			289			1,854			150,894			152,748
Total loans	$	27,732		$	8,266		$	23,129		$	59,127		$	4,115,881		$	4,175,008
As of September 30, 2012
Commercial (secured by real estate)	$	5,395		$	5,210		$	11,103		$	21,708		$	1,797,447		$	1,819,155
Commercial & industrial		1,499			295			696			2,490			457,507			459,997
Commercial construction		213			880			3,838			4,931			155,834			160,765
Total commercial		7,107			6,385			15,637			29,129			2,410,788			2,439,917
Residential mortgage		11,771			4,798			5,556			22,125			1,152,111			1,174,236
Residential construction		4,318			2,319			11,054			17,691			371,051			388,742
Consumer installment		1,269			219			394			1,882			133,068			134,950
Total loans	$	24,465		$	13,721		$	32,641		$	70,827		$	4,067,018		$	4,137,845
As of September 30, 2013, December 31, 2012, and September 30, 2012, $4.72 million, $9.50 million and $10.8 million of specific reserves were allocated to customers whose loan terms have been modified in TDRs.  United committed to lend additional amounts totaling up to $3,000, $689,000 and $377,000 as of September 30, 2013, December 31, 2012 and September 30, 2012, 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 additional information on TDRs including the number of loan contracts restructured and the pre- and post-modification recorded investment as of September 30, 2013, December 31, 2012 and September 30, 2012 (dollars in thousands).
	30-Sep-13									31-Dec-12									30-Sep-12
	Number			Pre-			Post-			Number			Pre-Modification			Post-Modification Outstanding Recorded Investment			Number			Pre-			Post-
	of			Modification			Modification			of			Outstanding Recorded Investment						of			Modification			Modification
	Contracts			Outstanding			Outstanding Recorded Investment			Contracts									Contracts			Outstanding Recorded Investment			Outstanding Recorded Investment
				Recorded
				Investment
Commercial (sec by RE)		77		$	47,963		$	43,163			96		$	80,261		$	75,340			101		$	84,672		$	79,645
Commercial & industrial		34			3,051			2,919			32			7,492			7,250			30			7,237			7,199
Commercial construction		12			12,904			12,825			25			37,537			33,809			25			37,832			35,866
Total commercial		123			63,918			58,907			153			125,290			116,399			156			129,741			122,710
Residential mortgage		120			19,032			17,929			117			20,323			19,296			114			18,226			17,487
Residential construction		55			12,360			10,290			67			25,822			23,786			73			28,629			24,772
Consumer installment		36			214			204			51			1,292			1,282			50			1,371			1,363
Total loans		334		$	95,524		$	87,330			388		$	172,727		$	160,763			393		$	177,967		$	166,332
Loans modified under the terms of a TDR during the three and nine months ended September 30, 2013 and 2012 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, 2013 and 2012 that were initially restructured within one year prior to the three and nine months ended September 30, 2013 and 2012 (dollars in thousands).
New Troubled Debt	Number of Contracts			Pre- Modification Outstanding Recorded Investment			Post- Modification Outstanding Recorded Investment			Modified Within the Previous
Restructurings for the Three										Twelve Months that Have
Months Ended September 30, 2013										Subsequently Defaulted During
										the Three Months Ended
										30-Sep-13
										Number of Contracts			Recorded Investment
Commercial (secured by real estate)		1		$	1,841		$	741		$	-		$	-
Commercial & industrial		1			68			68			-			-
Commercial construction		-			-			-			-			-
Total commercial		2			1,909			809			-			-
Residential mortgage		16			2,365			2,207			1			533
Residential construction		3			727			727			1			414
Consumer installment		1			7			7			2			9
Total loans		22		$	5,008		$	3,750			4		$	956
New Troubled Debt	Number of Contracts			Pre-			Post- Modification Outstanding Recorded Investment			Modified Within the Previous
Restructurings for the Nine				Modification Outstanding Recorded Investment						Twelve Months that Have
Months Ended September 30, 2013										Subsequently Defaulted During
										the Nine Months Ended
										30-Sep-13
										Number of Contracts			Recorded Investment
Commercial (secured by real estate)		18		$	11,932		$	10,832		$	1		$	432
Commercial & industrial		10			883			777			1			35
Commercial construction		-			-			-			2			1,454
Total commercial		28			12,815			11,609			4			1,921
Residential mortgage		29			5,129			4,827			3			641
Residential construction		10			1,850			1,721			3			531
Consumer installment		5			28			28			5			29
Total loans		72		$	19,822		$	18,185			15		$	3,122
New Troubled Debt	Number of Contracts			Pre-			Post- Modification Outstanding Recorded Investment			Modified Within the Previous
Restructurings for the Three				Modification Outstanding Recorded Investment						Twelve Months that Have
Months Ended September 30, 2012										Subsequently Defaulted During
										the Three Months Ended
										30-Sep-12
										Number of Contracts			Recorded Investment
Commercial (secured by real estate)		13		$	7,914		$	7,836		$	3		$	324
Commercial & industrial		3			162			162			-			-
Commercial construction		6			5,531			5,451			-			-
Total commercial		22			13,607			13,449			3			324
Residential mortgage		15			2,252			2,102			2			47
Residential construction		12			6,569			6,188			10			2,953
Consumer installment		7			44			43			1			2
Total loans		56		$	22,472		$	21,782			16		$	3,326
New Troubled Debt	Number of Contracts			Pre-			Post- Modification Outstanding Recorded Investment			Modified Within the Previous
Restructurings for the Nine				Modification Outstanding Recorded Investment						Twelve Months that Have
Months Ended September 30, 2012										Subsequently Defaulted During
										the Nine Months Ended
										30-Sep-12
										Number of Contracts			Recorded Investment
Commercial (secured by real estate)		47		$	30,828		$	29,305		$	6		$	2,631
Commercial & industrial		20			3,484			3,484			2			48
Commercial construction		20			34,014			33,934			2			4,174
Total commercial		87			68,326			66,723			10			6,853
Residential mortgage		59			12,819			12,487			6			447
Residential construction		46			17,958			15,738			14			4,550
Consumer installment		22			314			308			2			8
Total loans		214		$	99,417		$	95,256			32		$	11,858
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, 2013, December 31, 2012 and September 30, 2012, 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, 2013	Pass			Watch			Performing			Nonaccrual			Loss			Not Rated			Total
Commercial (secured by real estate)	$	1,603,863		$	55,351		$	75,542		$	8,015		$	-		$	-		$	1,742,771
Commercial & industrial		435,635			10,062			10,342			609			-			766			457,414
Commercial construction		109,332			10,560			16,911			343			-			-			137,146
Total commercial		2,148,830			75,973			102,795			8,967			-			766			2,337,331
Residential mortgage		1,215,149			28,470			53,172			12,504			-			-			1,309,295
Residential construction		283,197			14,943			15,552			4,097			-			-			317,789
Consumer installment		298,823			1,162			2,147			520			-			-			302,652
Total loans	$	3,945,999		$	120,548		$	173,666		$	26,088		$	-		$	766		$	4,267,067
As of December 31, 2012
Commercial (secured by real estate)	$	1,592,677		$	80,997		$	117,543		$	22,148		$	-		$	-		$	1,813,365
Commercial & industrial		401,606			5,404			18,477			31,817			-			942			458,246
Commercial construction		104,296			7,345			19,285			23,843			-			-			154,769
Total commercial		2,098,579			93,746			155,305			77,808			-			942			2,426,380
Residential mortgage		1,102,746			33,689			65,179			12,589			-			-			1,214,203
Residential construction		292,264			32,907			37,804			18,702			-			-			381,677
Consumer installment		147,214			1,086			3,653			795			-			-			152,748
Total loans	$	3,640,803		$	161,428		$	261,941		$	109,894		$	-		$	942		$	4,175,008
As of September 30, 2012
Commercial (secured by real estate)	$	1,591,321		$	75,606		$	126,332		$	25,896		$	-		$	-		$	1,819,155
Commercial & industrial		403,460			4,179			18,740			32,678			-			940			459,997
Commercial construction		108,909			6,086			27,180			18,590			-			-			160,765
Total commercial		2,103,690			85,871			172,252			77,164			-			940			2,439,917
Residential mortgage		1,051,402			36,640			72,198			13,996			-			-			1,174,236
Residential construction		292,002			38,635			35,170			22,935			-			-			388,742
Consumer installment		130,277			881			2,886			906			-			-			134,950
Total loans	$	3,577,371		$	162,027		$	282,506		$	115,001		$	-		$	940		$	4,137,845
Risk Ratings
United categorizes loans into risk categories based on relevant information about the ability of borrowers to service their debt such as:  current financial information, historical payment experience, credit documentation, 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 continuous 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. Loans not meeting the criteria above that are analyzed individually as part of the above described process are considered to be pass rated loans.  Loans listed as not rated are generally deposit account overdrafts that have not been assigned a grade.

Foreclosed_Property

Foreclosed Property	9 Months Ended
	Sep. 30, 2013
Foreclosed Property [Abstract]	'
Foreclosed Property	'
	Note 6 – Foreclosed Property
	Major classifications of foreclosed properties at September 30, 2013, December 31, 2012 and September 30, 2012 are summarized as follows (in thousands).
		September 30,			December 31,			September 30,
		2013			2012			2012
	Commercial real estate	$	1,130		$	6,368		$	9,613
	Commercial construction		376			2,204			3,121
	Total commercial		1,506			8,572			12,734
	Residential mortgage		2,420			5,192			6,509
	Residential construction		1,981			11,454			19,043
	Total foreclosed property		5,907			25,218			38,286
	Less valuation allowance		(1,440	)		(6,954	)		(11,328	)
	Foreclosed property, net	$	4,467		$	18,264		$	26,958
	Balance as a percentage of original loan unpaid principal		41.5	%		39.7	%		36.4	%
	In the second quarter of 2013, United completed the accelerated sales of classified assets including performing and nonperforming classified loans and foreclosed properties.  The classified asset sales resulted in a much lower balance of foreclosed property costs at September 30, 2013 and elevated losses from sales for the first nine months of 2013.
	Activity in the valuation allowance for foreclosed property for the three and nine months ended September 30, 2013 and 2012 is presented in the following table (in thousands).
		Three Months Ended						Nine Months Ended
		September 30,						September 30,
		2013			2012			2013			2012
	Balance at beginning of period	$	3,602		$	11,872		$	6,954		$	18,982
	Additions charged to expense		329			2,394			2,739			5,513
	Disposals		(2,491	)		(2,938	)		(8,253	)		(13,167	)
	Balance at end of period	$	1,440		$	11,328		$	1,440		$	11,328
	Expenses related to foreclosed assets for the three and nine months ended September 30, 2013 and 2012 is presented in the following table (in thousands).
		Three Months Ended						Nine Months Ended
		September 30,						September 30,
		2013			2012			2013			2012
	Net loss on sales	$	513		$	350		$	3,563		$	174
	Provision for unrealized losses		329			2,394			2,739			5,513
	Operating expenses		(648	)		962			1,376			3,695
	Total foreclosed property expense	$	194		$	3,706		$	7,678		$	9,382

Longterm_Debt

Long-term Debt	9 Months Ended
	Sep. 30, 2013
Debt Disclosure [Abstract]	'
Long-term Debt	'
	Note 7 – Long-term Debt
	Long term debt at September 30, 2013, December 31, 2012 and September 30, 2012 consisted of the following (in thousands):
		30-Sep-13		31-Dec-12		30-Sep-12		Issue		Stated		Earliest		Interest Rate
								Date		Maturity		Call
										Date		Date
	2013 senior debentures	$	40,000	$	-	$	-		2013		2018		2015		6	%
	2012 senior debentures		35,000		35,000		-		2012		2017		2017		9
	Total senior debentures		75,000		35,000		-
	2002 subordinated debentures		-		-		30,500		2002		2012		2012		6.75	%
	2003 subordinated debentures		-		35,000		35,000		2003		2015		2010		7.5
	Total subordinated debentures		-		35,000		65,500
	United Community Capital Trust		21,650		21,650		21,650		1998		2028		2008		8.125	%
	United Community Statutory Trust I		5,155		5,155		5,155		2000		2030		2010		10.6
	United Community Capital Trust II		10,309		10,309		10,309		2000		2030		2010		11.295
	Southern Bancorp Capital Trust I		4,382		4,382		4,382		2004		2034		2009	Prime + 1.00
	United Community Statutory Trust II		12,131		12,077		12,059		2008		2038		2013		9
	United Community Statutory Trust III		1,238		1,232		1,230		2008		2038		2013	Prime + 3.00
	Total trust preferred securities		54,865		54,805		54,785
	Total long-term debt	$	129,865	$	124,805	$	120,285
	Interest is paid semiannually for all senior debentures, subordinated debentures and trust preferred securities.
	Senior Debentures
	The 2013 senior debentures are redeemable on or after August 13, 2015 at a redemption price equal to 100% of the principal amount plus any accrued and unpaid interest, and they will mature on August 13, 2018.  The 2012 senior debentures are not redeemable and will mature on October 15, 2017.
	Subordinated Debentures
	The 2003 subordinated debentures were redeemed on September 30, 2013 at a redemption price equal to $35 million (100% of the principal amount) plus all accrued and unpaid interest as of such date. At redemption, the applicable interest rate on the 2003 subordinated debentures was 7.50%.  The 2002 subordinated debentures were retired upon maturity in the fourth quarter of 2012.
	Trust Preferred Securities
	Trust preferred securities qualify as Tier 1 capital under risk based capital guidelines, subject to certain limitations.  The trust preferred securities are mandatorily redeemable upon maturity, or upon earlier redemption at a premium as provided in the indentures.
	The trust preferred securities issued under United Community Statutory Trust II and United Community Statutory Trust III had attached warrants that allowed the holder to redeem the trust preferred securities in exchange for common stock at the exercise price of $100 per share.  The warrants expired unexercised on October 31, 2013.

Reclassifications_Out_of_Accum

Reclassifications Out of Accumulated Other Comprehensive Income	9 Months Ended
	Sep. 30, 2013
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, 2013 (in thousands).
		Amounts Reclassified from
		Accumulated Other Comprehensive
		Income
	Details about Accumulated Other	For the Three Months Ended September 30, 2013			For the Nine Months Ended September 30, 2013			Affected Line Item in the Statement
	Comprehensive Income Components							Where Net Income is Presented
	Unrealized (losses) gains on available-for-sale securities:
		$	-		$	116		Securities gains, net
			-			(45	)	Tax (expense) or benefit
		$	-		$	71		Net of tax
	Amortization of gains included in net income on available-for-sale securities transferred to held to maturity:
		$	214		$	803		Investment securities interest revenue
			(83	)		(310	)	Tax (expense) or benefit
		$	131		$	493		Net of tax
	Gains 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		Other fee revenue
			58			902		Total before tax
			(23	)		(351	)	Tax (expense) or benefit
		$	35		$	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	)	$	(273	)	Salaries and employee benefits expense
	Actuarial losses		(42	)		(126	)	Salaries and employee benefits expense
			(133	)		(399	)	Total before tax
			52			155		Tax (expense) or benefit
		$	(81	)	$	(244	)	Net of tax
	Total reclassifications for the period	$	85		$	871		Net of tax
	Amounts shown above in parentheses reduce earnings

Earnings_Per_Share

Earnings Per Share	9 Months Ended
	Sep. 30, 2013
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, 2013 and 2012, United accrued dividends on preferred stock, including accretion of discounts, as shown in the following table (in thousands).
		Three Months Ended				Nine Months Ended
		30-Sep				30-Sep
		2013		2012		2013		2012
	Series A - 6% fixed	$	3	$	3	$	9	$	9
	Series B - 5% fixed until December 6, 2013, 9% thereafter		2,641		2,619		7,907		7,841
	Series D - LIBOR plus 9.6875%, resets quarterly		415		419		1,250		1,253
	Total preferred stock dividends	$	3,059	$	3,041	$	9,166	$	9,103
	All preferred stock dividends are payable quarterly.
	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.  There were no dilutive securities outstanding for the three and nine months ended September 30, 2012.
	The following table sets forth the computation of basic and diluted earnings per share for the three and nine months ended September 30, 2013 and 2012 (in thousands, except per share data).
		Three Months Ended				Nine Months Ended
		September 30,				September 30,
		2013		2012		2013		2012
	Net income available to common shareholders	$	12,441	$	7,527	$	248,063	$	19,492
	Weighted average shares outstanding:
	Basic		59,100		57,880		58,443		57,826
	Effect of dilutive securities
	Convertible securities		-		-		-		-
	Stock options		1		-		1		-
	Warrants		101		-		-		-
	Diluted		59,202		57,880		58,444		57,826
	Income per common share:
	Basic	$	0.21	$	0.13	$	4.24	$	0.34
	Diluted	$	0.21	$	0.13	$	4.24	$	0.34
	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 issued originally to the U.S. Treasury in conjunction with the issuance of United’s fixed rate cumulative preferred perpetual stock, Series B; 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; 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.

Derivatives_and_Hedging_Activi

Derivatives and Hedging Activities	9 Months Ended
	Sep. 30, 2013
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, 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 net basis by counterparty portfolio.
	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, 2013, December 31, 2012 and September 30, 2012 (in thousands).
	Derivatives accounted for as hedges under ASC 815
					Fair Value
	Interest Rate		Balance Sheet		September 30,				December 31,				September 30,
	Products		Location		2013				2012				2012
	Asset derivatives		Other assets		$	6,289			$	23			$	182
	Liability derivatives		Other liabilities		$	35,451			$	11,900			$	9,758
	Derivatives not accounted for as hedges under ASC 815
					Fair Value
	Interest Rate		Balance Sheet		September 30,				December 31,				September 30,
	Products		Location			2013				2012				2012
	Asset derivatives		Other assets		$	1,803			$	635			$	596
	Liability derivatives		Other liabilities		$	1,818			$	643			$	605
	Derivative contracts that are not accounted for as hedges under ASC 815, Derivatives and Hedging, are between United and certain commercial loan customers with offsetting positions to dealers under a back-to-back swap program.
	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 primarily uses interest rate swaps as part of its interest rate risk management strategy.  At September 30, 2013, United’s interest rate swaps designated as cash flow hedges involve 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.  The swaps are forward starting and do not become effective until 2014 and 2015.  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 at September 30, 2013.  At December 31, 2012 and September 30, 2012, United had three swap contracts outstanding with a 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 two swap contracts outstanding with a total notional amount of $200 million that were designated as cash flow hedges of indexed money market accounts.
	The effective portion of changes in the fair value of derivatives designated as, 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 in 2014 as interest payments are made on United’s LIBOR based variable-rate wholesale borrowings and indexed deposit accounts.  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 the forecasted transactions are no longer expected to occur.  For the same periods in 2012, those amounts were gains of $114,000 and $238,000, respectively.  At September 30, 2013, there were no remaining unamortized balances from terminated positions.  United’s forward starting active cash flow hedges of floating rate liabilities will begin to become effective over the next twelve months.  United recognized $33,000 in hedge ineffectiveness losses on active cash flow hedges in the third quarter of 2013.  No such hedge ineffectiveness gains or losses were recognized on active cash flow hedges in 2012.  United expects that $2.24 million will be reclassified as an increase to deposit interest expense over the next twelve months related to these cash flow hedges.
	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 fixed rate obligations 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, 2013, United had 27 interest rate swaps with an aggregate notional amount of $387 million that were designated as fair value hedges of interest rate risk.  Eight of the interest rate swaps outstanding at September 30, 2013 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 fixed rate corporate bonds resulting from changes in interest rates.  The other 19 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, 2012, United had 9 interest rate swaps with an aggregate notional amount of $122 million that were designated as fair value hedges of fixed rate brokered time deposits.
	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 line item as the offsetting loss or gain on the related derivatives.  During the three and nine months ended September 30, 2013, United recognized net gains of $38,000 and $241,000, respectively, and during the three and nine months ended September 30, 2012, United recognized net gains of $766,000 and $577,000, respectively, related to ineffectiveness of the fair value hedging relationships.  United also recognized a net reduction of interest expense of $2.47 million and $4.73 million, respectively, for the three and nine months ended September 30, 2013 and a net reduction of interest expense of $745,000 and $1.57 million, respectively, for the three and nine months ended September 30, 2012 related to United’s fair value hedges of brokered time deposits, which includes net settlements on the derivatives.  United recognized a $516,000 and $811,000 reduction of interest revenue on securities during the third quarter and first nine months of 2013 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, 2013 and 2012.
	Derivatives in Fair Value Hedging Relationships (in thousands).
	Location of Gain (Loss)		Amount of Gain (Loss) Recognized in								Amount of Gain (Loss) Recognized in
	Recognized in Income		Income on Derivative								Income on Hedged Item
	on Derivative		2013				2012				2013				2012
	Three Months Ended September 30,
	Other fee revenue		$	(2,740	)		$	922			$	2,778			$	(156	)
	Nine Months Ended September 30,
	Other fee revenue		$	(15,796	)		$	1,745			$	16,037			$	(1,168	)
	In most 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 death 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 death 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
		Comprehensive Income									Gain (Loss) Reclassified from Accumulated								Gain (Loss) Recognized in Income on
			on Derivative								Other Comprehensive Income into Income								Derivative
			(Effective Portion)								(Effective Portion)								(Ineffective Portion)
			2013				2012				Location		2013				2012		Location	2013			2012
	Three Months Ended September 30,
											Interest revenue		$	10			$	649
											Other fee revenue			48				114
	Interest rate products		$	(3,507	)		$	(3,943	)		Total		$	58			$	763	Other fee revenue	$	(33	)	$	-
	Nine Months Ended September 30,
											Interest revenue		$	851			$	2,839
											Other fee revenue			53				238
	Interest rate products		$	8,595			$	(8,798	)		Total		$	904			$	3,077	Other fee revenue	$	46		$	-
	Other Derivatives Not Accounted for as Hedges (in thousands).
	Location of Gain (Loss)		Amount of Gain (Loss) Recognized in
	Recognized in Income		Income on Customer Derivatives
	on Derivative		2013				2012
	Three Months Ended September 30,
	Other fee revenue		$	442			$	278
	Nine Months Ended September 30,
	Other fee revenue		$	1,182			$	346
	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, 2013, collateral totaling $25.6 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.
	Change in Valuation Methodology
	As of January 1, 2013, United changed its valuation methodology for over-the-counter derivatives to discount cash flows based on Overnight Index Swap (“OIS”) rates.  Fully collateralized trades are discounted using OIS with no additional economic adjustments to arrive at fair value.  Uncollateralized or partially collateralized trades are also discounted at OIS, but include appropriate economic adjustments for funding costs (i.e. LIBOR-OIS basis adjustment to approximate uncollateralized cost of funds) and credit risk.  United changed its methodology to better align its inputs, assumptions and pricing methodologies with those used in its principal market by most dealers and major market participants.  The changes in valuation methodology are applied prospectively as a change in accounting estimate and are not material to United’s financial position or results of operations.

StockBased_Compensation

Stock-Based Compensation	9 Months Ended
	Sep. 30, 2013
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 option and 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, 2013, 537,000 additional awards could be granted under the plan. Through September 30, 2013, 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 2013.
							Weighted-
							Average		Aggregate
					Weighted-		Remaining		Intrinisic
					Average Exercise		Contractual		Value
	Options	Shares			Price		Term (Years)		$0
	Outstanding at December 31, 2012		482,528		$	97.73
	Granted		5,000			15.09
	Forfeited		(935	)		30.23
	Expired		(115,144	)		92.09
	Outstanding at September 30, 2013		371,449			98.54		3.4	$	38
	Exercisable at September 30, 2013		361,249			100.95		3.2		19
	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.
		Nine Months Ended
		September 30,
		2013
	Expected volatility		30	%
	Expected dividend yield		0	%
	Expected life (in years)		6.25
	Risk-free rate		2.01	%
	No stock options were granted during the nine months ended September 30, 2012.  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.
	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.  Compensation expense relating to stock options of $190,000 was included in earnings for the nine months ended September 30, 2012.  The amount of compensation expense for both periods 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 2013 or 2012.
	The table below presents the activity in restricted stock and restricted stock unit awards for the first nine months of 2013.
					Weighted-
					Average Grant-
	Restricted Stock	Shares			Date Fair Value
	Outstanding at December 31, 2012		485,584		$	10.72
	Granted		795,833			14.69
	Excercised		(190,366	)		13.32
	Cancelled		(17,792	)		9.3
	Outstanding at September 30, 2013		1,073,259			13.23
	Vested at September 30, 2013		22,462			10.11
	Compensation expense for restricted stock and restricted stock units is based on the fair value of restricted stock and restricted stock unit 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 and restricted stock unit grants that are expected to vest is amortized into expense over the vesting period.  For the nine months ended September 30, 2013 and 2012, compensation expense of $2.01 million and $1.18 million, respectively, was recognized related to restricted stock and restricted stock unit awards.  In addition, for the nine months ended September 30, 2013, $118,000 was recognized in other operating expense for restricted stock units granted to members of United’s board of directors.  The total intrinsic value of restricted stock and restricted stock units was $16.1 million at September 30, 2013.
	As of September 30, 2013, there was $12.4 million of unrecognized compensation cost related to non-vested stock options and restricted stock and restricted stock unit awards granted under the plan.  That cost is expected to be recognized over a weighted-average period of 3.7 years.  The aggregate grant date fair value of options and restricted stock and restricted stock unit awards that vested during the nine months ended September 30, 2013, was $2.40 million.

Common_and_Preferred_Stock_Iss

Common and Preferred Stock Issued / Common Stock Issuable	9 Months Ended
	Sep. 30, 2013
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.  The DRIP is currently suspended.
	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, 2013 and 2012, United issued 49,830 and 87,086 shares, respectively, and increased capital by $582,000 and $702,000, respectively, through these programs.
	United offers its common stock as an investment option in its deferred compensation plan.  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 stock and settlement must be accomplished in shares at the time the deferral period is completed. At September 30, 2013 and 2012, 242,262 and 129,270 shares, respectively, were issuable under the deferred compensation plan.

Income_Taxes

Income Taxes	9 Months Ended
	Sep. 30, 2013
Income Tax Disclosure [Abstract]	'
Income Taxes	'
	Note 13 – Income Taxes
	The income tax provision for the three and nine months ended September 30, 2013 was an expense of  $9.52 million and a benefit of $247 million, respectively.  Income tax expense for the three months ended September 30, 2013 represents an effective tax rate of 38%.  Included in income tax expense for the third quarter of 2013 was a $1.00 million partial impairment charge on United’s net deferred tax asset resulting from a reduction in the state income tax rate in North Carolina.  During the third quarter, the State of North Carolina adopted legislation to reduce its corporate income tax rate from the current 6.90% to 6.00% effective January 1, 2014 and to 5.00% effective January 1, 2015.  Because the lower statutory tax rate reduces the rate at which United’s North Carolina net operating loss carryforwards will be recovered, United recognized a partial impairment charge on that component of its net deferred tax asset.  Partially offsetting the $1.00 million charge was the release of a $400,000 previously established reserve for an uncertain tax position related to a tax return whose statute expired during the third quarter and is therefore no longer subject to audit.  The income tax benefit for the first nine months of 2013 reflects the valuation allowance reversal in the second quarter.
	The valuation allowance on deferred tax assets was $4.61 million, $270 million and $272 million, respectively, at September 30, 2013, December 31, 2012 and September 30, 2012.  Management assesses the valuation allowance recorded against deferred tax assets at each reporting period.  The determination of whether a valuation allowance for deferred tax assets 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 its valuation allowance on its net deferred tax asset.  United 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, 2013.  Based on the assessment of all the positive and negative evidence, management concluded that it is more likely than not that nearly all of the net deferred tax asset will be realized based upon future taxable income.  The remaining  valuation allowance of $4.61 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 six 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 considered by management included the fact that United remains in a three-year cumulative loss position and its current informal memorandums of understanding with the banking regulatory agencies.
	United expects to realize $270 million in net deferred tax assets well in advance of the statutory carryforward period.  At September 30, 2013, $47.7 million of existing deferred tax assets were not related to net operating losses or credits and therefore, have no expiration date.  Approximately $190 million of the remaining deferred tax assets relate to federal net operating losses which will expire in annual installments beginning in 2029.  Additionally, $26.0 million of the deferred tax assets relate to state net operating losses which will expire in annual installments beginning in 2023.  Tax credit carryforwards at September 30, 2013 include federal alternative minimum tax credits totaling $3.0 million which have an unlimited carryforward period.  Other federal and state tax credits at September 30, 2013 total $7.39 million and will expire beginning in 2013.
	The valuation allowance could fluctuate in future periods based on the assessment of the positive and negative evidence.  Management's conclusion at September 30, 2013 that it was more likely than not that the net deferred tax assets of $270 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 which 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 the deferred tax asset.  Such an increase to the 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 2009.  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, 2013, December 31, 2012 and September 30, 2012, unrecognized income tax benefits totaled $4.45 million, $5.07 million and $5.61 million, respectively.

Assets_and_Liabilities_Measure

Assets and Liabilities Measured at Fair Value	9 Months Ended
	Sep. 30, 2013
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, the Financial Accounting Standards Board’s Accounting Standards Codification Topic 820 (“ASC 820”) Fair Value Measurements and Disclosures establishes 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 and corporate debt securities. Securities classified as Level 3 include asset-backed securities in less liquid markets.
	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.  Generally, book value approximates fair value.
	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. In accordance with ASC 820, 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.
	Goodwill and Other Intangible Assets
	Goodwill and identified intangible assets are subject to impairment testing. United’s approach to testing goodwill for impairment is to compare the business unit’s carrying value to the implied fair value based on multiples of earnings and tangible book value for recently completed merger transactions.  In the event the fair value is determined to be less than the carrying value, the asset is recorded at fair value as determined by the valuation model. As such, United classifies goodwill and other intangible assets subjected to nonrecurring fair value adjustments as 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, 2013, 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, 2013, December 31, 2012 and September 30, 2012, aggregated by the level in the fair value hierarchy within which those measurements fall (in thousands).
	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
	31-Dec-12	Level 1		Level 2		Level 3		Total
	Assets:
	Securities available for sale
	State and political subdivisions	$	-	$	29,052	$	-	$	29,052
	Mortgage-backed securities		-		1,428,502		-		1,428,502
	Corporate bonds		-		163,312		350		163,662
	Asset-backed securities		-		210,556		-		210,556
	Other		-		2,821		-		2,821
	Deferred compensation plan assets		3,101		-		-		3,101
	Derivative financial instruments		-		658		-		658
	Total assets	$	3,101	$	1,834,901	$	350	$	1,838,352
	Liabilities:
	Deferred compensation plan liability	$	3,101	$	-	$	-	$	3,101
	Brokered certificates of deposit		-		154,641		-		154,641
	Derivative financial instruments		-		12,543		-		12,543
	Total liabilities	$	3,101	$	167,184	$	-	$	170,285
	30-Sep-12	Level 1		Level 2		Level 3		Total
	Assets:
	Securities available for sale:
	State and political subdivisions	$	-	$	28,878	$	-	$	28,878
	Mortgage-backed securities		-		1,382,940		-		1,382,940
	Corporate bonds		-		142,802		350		143,152
Asset-backed securities		-		204,429		-		204,429
Other		-		2,595		-		2,595
Deferred compensation plan assets		3,072		-		-		3,072
Derivative financial instruments		-		778		-		778
Total assets	$	3,072	$	1,762,422	$	350	$	1,765,844
Liabilities:
Deferred compensation plan liability	$	3,072	$	-	$	-	$	3,072
Brokered certificates of deposit		-		122,211		-		122,211
Derivative financial instruments		-		10,363		-		10,363
Total liabilities	$	3,072	$	132,574	$	-	$	135,646
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).
	Securities Available for Sale				Securities Available for Sale
	Three Months Ended				Nine Months Ended
	September 30,				September 30,
Securities Available for Sale	2013		2012		2013		2012
Balance at beginning of period	$	350	$	350	$	350	$	350
Amounts included in earnings		-		-		-		-
Paydowns		-		-		-		-
Balance at end of period	$	350	$	350	$	350	$	350
United has two securities that have Level 3 valuations.  They are trust preferred securities in community banks that have shown deteriorating financial condition during the financial crisis, and both are currently deferring interest payments.  Since both investments are not actively traded, there is no recent trade activity upon which to assess value.  The values assigned to the investments are based on sales price estimates from brokers.  Both investments have a par amount of $1 million.  One was considered impaired in 2010 and was written down to $50,000 with a $950,000 impairment charge to earnings.  The other 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.
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, 2013, December 31, 2012 and September 30, 2012, aggregated by the level in the fair value hierarchy within which those measurements fall (in thousands).
30-Sep-13	Level 1		Level 2		Level 3		Total
Assets
Loans	$	-	$	-	$	76,393	$	76,393
Foreclosed properties		-		-		3,898		3,898
Total	$	-	$	-	$	80,291	$	80,291
31-Dec-12
Assets
Loans	$	-	$	-	$	165,751	$	165,751
Foreclosed properties		-		-		14,788		14,788
Total	$	-	$	-	$	180,539	$	180,539
30-Sep-12
Assets
Loans	$	-	$	-	$	172,909	$	172,909
Foreclosed properties		-		-		20,369		20,369
Total	$	-	$	-	$	193,278	$	193,278
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 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, 2013, December 31, 2012, and September 30, 2012 are as follows (in thousands).
	Carrying		Fair Value Level
30-Sep-13	Amount		Level 1		Level 2		Level 3		Total
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
31-Dec-12
Assets:
Securities held to maturity	$	244,184	$	-	$	261,131	$	-	$	261,131
Loans, net		4,067,871		-		-		3,957,669		3,957,669
Mortgage loans held for sale		28,821		-		29,693		-		29,693
Liabilities:
Deposits		5,952,140		-		5,988,743		-		5,988,743
Federal Home Loan Bank advances		40,125		-		40,125		-		40,125
Long-term debt		124,805		-		-		118,626		118,626
30-Sep-12
Assets:
Securities held to maturity	$	262,648	$	-	$	281,336	$	-	$	281,336
Loans, net		4,030,203		-		-		3,954,607		3,954,607
Mortgage loans held for sale		30,571		-		31,350		-		31,350
Liabilities:
Deposits		5,822,699		-		5,848,540		-		5,848,540
Federal Home Loan Bank advances		50,125		-		50,125		-		50,125
Long-term debt		120,285		-		-		113,624		113,624

Commitments_and_Contingencies

Commitments and Contingencies	9 Months Ended
	Sep. 30, 2013
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, 2013, December 31, 2012 and September 30, 2012, the contractual amount of off-balance sheet instruments (in thousands):
		30-Sep-13		31-Dec-12		30-Sep-12
	Financial instruments whose contract amounts represent credit risk:
	Commitments to extend credit	$	677,891	$	313,798	$	483,844
	Letters of credit		9,818		13,683		13,416
	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, 2013
Summary Of Significant Accounting Policies [Abstract]	'
Clarifying the Scope of Disclosures about Offsetting Assets and Liabilities	'
	In January 2013, the FASB issued Accounting Standards Update No. 2013-01, Clarifying the Scope of Disclosures about Offsetting Assets and Liabilities.  This ASU limits the scope of the new balance sheet offsetting disclosures to derivatives, repurchase agreements, and securities lending transactions to the extent that they are (1) offset in the financial statements or (2) subject to an enforceable master netting agreement.  The disclosure requirements were effective for annual reporting periods beginning on or after January 1, 2013 and interim periods within those annual periods.  This guidance did not have a material impact on United’s financial position or results of operations, and resulted in additional disclosures.
Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income	'
	In February 2013, the FASB issued Accounting Standards Update No. 2013-02, Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income.  The amendments in this update require an entity to provide information about the amounts reclassified out of accumulated other comprehensive income by component and by the respective line items of net income. The standard was effective for fiscal years, and interim periods within those years, beginning after December 15, 2012.  This guidance did not have a material impact on United’s financial position or results of operations, and resulted in additional disclosures.
Inclusion of the Fed Funds Effective Swap Rate (or Overnight Index Swap Rate) as a Benchmark Interest Rate for Hedge Accounting Purposes	'
	In July 2013, the FASB issued Accounting Standards Update No. 2013-10, Inclusion of the Fed Funds Effective Swap Rate (or Overnight Index Swap Rate) as a Benchmark Interest Rate for Hedge Accounting Purposes.  The amendments in this update permit the Fed Funds Effective Swap Rate (OIS) to be used as a benchmark interest rate for hedge accounting in addition to UST and LIBOR. The amendments also remove the restriction on using different benchmark rates for similar hedges. The standard is effective prospectively for qualifying new or re-designated hedging relationships entered into on or after July 17, 2013.  This guidance did not have a material impact on United’s financial position, results of operations or disclosures.
Presentation of unrecognized tax benefit when net operating loss carryforward similar tax loss, or tax credit carryforward exists	'
	In July 2013, the FASB issued Accounting Standards Update 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.  This ASU provides explicit guidance on the financial statement presentation of an unrecognized tax benefit when a net operating loss carryforward, a similar tax loss, or a tax credit carryforward exists.  The amendments in this update are effective for fiscal years, and interim periods within those years, beginning after December 15, 2013.  Since United has both unrecognized tax benefits and net operating loss and tax credit carryforwards, this ASU could have an impact on United’s financial position, results of operations or disclosures; however, United does not expect the impact to be material to United’s financial position, results of operations or disclosures.

Offsetting_Assets_and_Liabilit1

Offsetting Assets and Liabilities (Tables)	9 Months Ended
	Sep. 30, 2013
Offsetting [Abstract]	'
Schedule of assets outstanding under master netting agreements	'
					Gross
		Gross			Amounts					Gross Amounts not Offset
		Amounts of			Offset on the					in the Balance Sheet
		Recognized			Balance			Net Asset		Financial		Collateral
	30-Sep-13	Assets			Sheet			Balance		Instruments		Received		Net Amount
	Repurchase agreements / reverse repurchase agreements	$	405,000		$	(350,000	)	$	55,000	$	-	$	-	$	55,000
	Derivatives		8,092			-			8,092		-		-		8,092
	Total	$	413,092		$	(350,000	)	$	63,092	$	-	$	-	$	63,092
	Weighted average interest rate of reverse repurchase agreements		1.13	%
					Gross
		Gross			Amounts					Gross Amounts not Offset
		Amounts of			Offset on the					in the Balance Sheet
		Recognized			Balance			Net Asset		Financial		Collateral
	31-Dec-12	Assets			Sheet			Balance		Instruments		Received		Net Amount
	Repurchase agreements / reverse repurchase agreements	$	325,000		$	(265,000	)	$	60,000	$	-	$	-	$	60,000
	Securities lending transactions		50,000			(50,000	)		-		-		-		-
	Derivatives		658			-			658		-		-		658
	Total	$	375,658		$	(315,000	)	$	60,658	$	-	$	-	$	60,658
	Weighted average interest rate of reverse repurchase agreements		1.18	%
					Gross
		Gross			Amounts					Gross Amounts not Offset
		Amounts of			Offset on the					in the Balance Sheet
		Recognized			Balance			Net Asset		Financial		Collateral
	30-Sep-12	Assets			Sheet			Balance		Instruments		Received		Net Amount
	Repurchase agreements / reverse repurchase agreements	$	270,000		$	(225,000	)	$	45,000	$	-	$	-	$	45,000
	Securities lending transactions		100,000			(100,000	)		-		-		-		-
	Derivatives		778			-			778		-		-		778
	Total	$	370,778		$	(325,000	)	$	45,778	$	-	$	-	$	45,778
	Weighted average interest rate of reverse repurchase agreements		1.19	%
Schedule of liabilities outstanding under master netting agreements	'
					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		37,269			-			37,269		-		25,579		11,690
	Total	$	387,269		$	(350,000	)	$	37,269	$	-	$	25,579	$	11,690
	Weighted average interest rate of repurchase agreements		0.28	%
					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	$	265,000		$	(265,000	)	$	-	$	-	$	-	$	-
	Securities lending transactions		50,000			(50,000	)		-		-		-		-
	Derivatives		12,543			-			12,543		-		11,493		1,050
	Total	$	327,543		$	(315,000	)	$	12,543	$	-	$	11,493	$	1,050
	Weighted average interest rate of repurchase agreements		0.43	%
					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	$	225,000		$	(225,000	)	$	-	$	-	$	-	$	-
	Securities lending transactions		100,000			(100,000	)		-		-		-		-
	Derivatives		10,363			-			10,363		-		11,126		(763	)
	Total	$	335,363		$	(325,000	)	$	10,363	$	-	$	11,126	$	(763	)
	Weighted average interest rate of repurchase agreements		0.41	%

Securities_Tables

Securities (Tables)	9 Months Ended
	Sep. 30, 2013
Investment Securities [Abstract]	'
Schedule of securities sales activity with realized gains and losses derived using specific identification method	'
		Three Months Ended				Nine Months Ended
		September 30,				September 30,
		2013		2012		2013		2012
	Proceeds from sales	$	5,000	$	-	$	20,751	$	371,103
	Gross gains on sales	$	-	$	-	$	116	$	7,047
	Gross losses on sales		-		-		-		-
	Net gains on sales of securities	$	-	$	-	$	116	$	7,047
	Income tax expense attributable to sales	$	-	$	-	$	45	$	2,631
Schedule of amortized cost, gross unrealized gains and losses and fair value of securities held to maturity	'
				Gross		Gross
		Amortized		Unrealized		Unrealized		Fair
	As of September 30, 2013	Cost		Gains		Losses		Value
	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
	As of December 31, 2012
	State and political subdivisions	$	51,780	$	5,486	$	-	$	57,266
	Mortgage-backed securities(1)		192,404		11,461		-		203,865
	Total	$	244,184	$	16,947	$	-	$	261,131
	As of September 30, 2012
	State and political subdivisions	$	51,790	$	5,795	$	-	$	57,585
	Mortgage-backed securities(1)		210,858		12,893		-		223,751
	Total	$	262,648	$	18,688	$	-	$	281,336
	(1)All are residential type mortgage-backed securities
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, 2013	Cost		Gains		Losses		Value
	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
	As of December 31, 2012
	State and political subdivisions	$	27,717	$	1,354	$	19	$	29,052
	Mortgage-backed securities (1)		1,408,042		22,552		2,092		1,428,502
	Corporate bonds		169,783		1,052		7,173		163,662
	Asset-backed securities		209,411		1,894		749		210,556
	Other		2,821		-		-		2,821
	Total	$	1,817,774	$	26,852	$	10,033	$	1,834,593
	As of September 30, 2012
	State and political subdivisions	$	27,403	$	1,478	$	3	$	28,878
	Mortgage-backed securities (1)		1,356,002		27,689		751		1,382,940
	Corporate bonds		148,315		450		5,613		143,152
	Asset-backed securities		204,522		713		806		204,429
	Other		2,595		-		-		2,595
	Total	$	1,738,837	$	30,330	$	7,173	$	1,761,994
	(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
	As of September 30, 2013	Fair Value		Unrealized		Fair Value		Unrealized		Fair Value		Unrealized
				Loss				Loss				Loss
	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 available for sale securities in an unrealized loss position	'
		Less than 12 Months				12 Months or More				Total
	As of September 30, 2013	Fair Value		Unrealized		Fair Value		Unrealized		Fair Value		Unrealized
				Loss				Loss				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
	As of December 31, 2012
	State and political subdivisions	$	3,674	$	17	$	10	$	2	$	3,684	$	19
	Mortgage-backed securities		326,485		2,092		-		-		326,485		2,092
	Corporate bonds		21,248		136		93,903		7,037		115,151		7,173
	Asset-backed securities		82,188		749		-		-		82,188		749
	Total unrealized loss position	$	433,595	$	2,994	$	93,913	$	7,039	$	527,508	$	10,033
	As of September 30, 2012
	State and political subdivisions	$	-	$	-	$	12	$	3	$	12	$	3
	Mortgage-backed securities		105,296		741		17,059		10		122,355		751
	Corporate bonds		4,893		10		113,590		5,603		118,483		5,613
	Asset-backed securities		90,766		806		-		-		90,766		806
	Total unrealized loss position	$	200,955	$	1,557	$	130,661	$	5,616	$	331,616	$	7,173
Schedule of amortized cost and fair value of held to maturity and available for sale securities by contractual maturity	'
		Available-for-Sale				Held-to-Maturity
		Amortized Cost		Fair Value		Amortized Cost		Fair Value
	State and political subdivisions:
	Within 1 year	$	2,832	$	2,876	$	-	$	-
	1 to 5 years		16,485		17,144		12,472		13,267
	5 to 10 years		2,616		2,616		25,062		26,322
	More than 10 years		848		888		14,211		14,826
			22,781		23,524		51,745		54,415
	Corporate bonds:
	1 to 5 years		38,245		38,388		-		-
	5 to 10 years		206,377		198,370		-		-
	More than 10 years		10,769		10,193		-		-
			255,391		246,951		-		-
	Asset-backed securities:
	1 to 5 years		72,616		72,188		-		-
	5 to 10 years		145,680		146,029		-		-
	More than 10 years		88,665		89,021		-		-
			306,961		307,238		-		-
	Other:
	More than 10 years		2,394		2,394		-		-
			2,394		2,394		-		-
	Total securities other than mortgage-backed securities:
	Within 1 year		2,832		2,876		-		-
	1 to 5 years		127,346		127,720		12,472		13,267
	5 to 10 years		354,673		347,015		25,062		26,322
	More than 10 years		102,676		102,496		14,211		14,826
	Mortgage-backed securities		1,390,280		1,383,317		153,868		160,236
		$	1,977,807	$	1,963,424	$	205,613	$	214,651

Loans_and_Allowance_for_Loan_L1

Loans and Allowance for Loan Losses (Tables)	9 Months Ended
	Sep. 30, 2013
Loans and Allowance For Loan Losses [Abstract]	'
Schedule of classifications of loans	'
		September 30,			December 31,			September 30,
		2013			2012			2012
	Commercial (secured by real estate)	$	1,742,771		$	1,813,365		$	1,819,155
	Commercial & industrial		457,414			458,246			459,997
	Commercial construction		137,146			154,769			160,765
	Total commercial		2,337,331			2,426,380			2,439,917
	Residential mortgage		1,309,295			1,214,203			1,174,236
	Residential construction		317,789			381,677			388,742
	Consumer installment		302,652			152,748			134,950
	Total loans		4,267,067			4,175,008			4,137,845
	Less allowance for loan losses		(80,372	)		(107,137	)		(107,642	)
	Loans, net	$	4,186,695		$	4,067,871		$	4,030,203
Schedule of changes in the allowance for loan losses	'
		Three Months Ended						Nine Months Ended
		September 30,						September 30,
		2013			2012			2013			2012
	Balance beginning of period	$	81,845		$	112,705		$	107,137		$	114,468
	Provision for loan losses		3,000			15,500			62,500			48,500
	Charge-offs:
	Commercial (secured by real estate)		1,928			8,445			34,122			16,791
	Commercial & industrial		826			343			18,581			1,987
	Commercial construction		134			3,198			6,484			3,650
	Residential mortgage		1,306			3,575			10,380			13,356
	Residential construction		1,096			6,231			22,608			21,706
	Consumer installment		419			442			1,691			1,603
	Total loans charged-off		5,709			22,234			93,866			59,093
	Recoveries:
	Commercial (secured by real estate)		71			271			1,556			571
	Commercial & industrial		690			602			1,368			802
	Commercial construction		1			8			60			38
	Residential mortgage		231			48			649			592
	Residential construction		24			555			57			1,153
	Consumer installment		219			187			911			611
	Total recoveries		1,236			1,671			4,601			3,767
	Net charge-offs		4,473			20,563			89,265			55,326
	Balance end of period	$	80,372		$	107,642		$	80,372		$	107,642
Schedule of United's recorded investment in asset	'
		Recorded Investment			Net Sales			Net
					Proceeds			Charge-Off
	Loans considered impaired	$	96,829		$	56,298		$	(40,531	)
	Loans not considered impaired		25,687			15,227			(10,460	)
	Foreclosed properties		8,398			5,933			(2,465	)
	Total assets sold	$	130,914		$	77,458		$	(53,456	)
Schedule of allowance for loan losses and recorded investment in loans by portfolio segment based on impairment method	'
	Nine Months Ended September 30, 2013	Commercial (Secured by Real Estate)			Commercial & Industrial			Commercial Construction			Residential Mortgage			Residential Construction			Consumer Installment			Unallocated			Total
	Allowance for loan losses:
	Beginning balance	$	27,847		$	5,537		$	8,389		$	26,642		$	26,662		$	2,747		$	9,313		$	107,137
	Charge-offs		(34,122	)		(18,581	)		(6,484	)		(10,380	)		(22,608	)		(1,691	)		-			(93,866	)
	Recoveries		1,556			1,368			60			649			57			911			-			4,601
	Provision		28,854			19,608			1,853			3,791			10,231			450			(2,287	)		62,500
	Ending balance	$	24,135		$	7,932		$	3,818		$	20,702		$	14,342		$	2,417		$	7,026		$	80,372
	Ending allowance attributable to loans:
	Individually evaluated for impairment	$	1,975		$	546		$	150		$	2,008		$	662		$	11		$	-		$	5,352
	Collectively evaluated for impairment		22,160			7,386			3,668			18,694			13,680			2,406			7,026			75,020
	Total ending allowance balance	$	24,135		$	7,932		$	3,818		$	20,702		$	14,342		$	2,417		$	7,026		$	80,372
	Loans:
	Individually evaluated for impairment	$	54,463		$	4,105		$	13,478		$	18,970		$	14,121		$	204		$	-		$	105,341
	Collectively evaluated for impairment		1,688,308			453,309			123,668			1,290,325			303,668			302,448			-			4,161,726
	Total loans	$	1,742,771		$	457,414		$	137,146		$	1,309,295		$	317,789		$	302,652		$	-		$	4,267,067
	31-Dec-12
	Allowance for loan losses:
	Ending allowance attributable to loans:
	Individually evaluated for impairment	$	6,106		$	490		$	2,239		$	2,165		$	625		$	19		$	-		$	11,644
	Collectively evaluated for impairment		21,741			5,047			6,150			24,477			26,037			2,728			9,313			95,493
	Total ending allowance balance	$	27,847		$	5,537		$	8,389		$	26,642		$	26,662		$	2,747		$	9,313		$	107,137
	Loans:
	Individually evaluated for impairment	$	104,409		$	51,501		$	40,168		$	22,247		$	34,055		$	430		$	-		$	252,810
	Collectively evaluated for impairment		1,708,956			406,745			114,601			1,191,956			347,622			152,318			-			3,922,198
	Total loans	$	1,813,365		$	458,246		$	154,769		$	1,214,203		$	381,677		$	152,748		$	-		$	4,175,008
	Nine Months Ended September 30, 2012
	Beginning balance	$	31,644		$	5,681		$	6,097		$	29,076		$	30,379		$	2,124		$	9,467		$	114,468
	Charge-offs		(16,791	)		(1,987	)		(3,650	)		(13,356	)		(21,706	)		(1,603	)		-			(59,093	)
	Recoveries		571			802			38			592			1,153			611			-			3,767
	Provision		11,351			362			6,101			11,163			18,233			1,738			(448	)		48,500
	Ending balance	$	26,775		$	4,858		$	8,586		$	27,475		$	28,059		$	2,870		$	9,019		$	107,642
	Ending allowance attributable to loans:
	Individually evaluated for impairment	$	6,692		$	725		$	2,289		$	1,856		$	1,270		$	21		$	-		$	12,853
	Collectively evaluated for impairment		20,083			4,133			6,297			25,619			26,789			2,849			9,019			94,789
	Total ending allowance balance	$	26,775		$	4,858		$	8,586		$	27,475		$	28,059		$	2,870		$	9,019		$	107,642
	Loans:
	Individually evaluated for impairment	$	119,023		$	53,531		$	42,249		$	21,678		$	31,576		$	498		$	-		$	268,555
	Collectively evaluated for impairment		1,700,132			406,466			118,516			1,152,558			357,166			134,452			-			3,869,290
	Total loans	$	1,819,155		$	459,997		$	160,765		$	1,174,236		$	388,742		$	134,950		$	-		$	4,137,845
Schedule of average balances of impaired loans and income recognized on impaired loans	'
		2013									2012
	Three Months Ended September 30,	Average			Interest			Cash Basis			Average			Interest			Cash Basis
		Balance			Revenue			Interest			Balance			Revenue			Interest
					Recognized			Revenue						Recognized			Revenue
					During			Received						During			Received
					Impairment									Impairment
	Commercial (secured by real estate)	$	55,303		$	1,336		$	1,461		$	124,681		$	1,218		$	1,311
	Commercial & industrial		4,189			114			104			43,764			141			611
	Commercial construction		13,501			244			246			43,488			238			255
	Total commercial		72,993			1,694			1,811			211,933			1,597			2,177
	Residential mortgage		19,070			436			446			22,920			254			274
	Residential construction		14,136			346			307			40,653			252			473
	Consumer installment		214			7			7			454			7			8
	Total	$	106,413		$	2,483		$	2,571		$	275,960		$	2,110		$	2,932
	Nine Months Ended September 30,
	Commercial (secured by real estate)	$	76,060		$	2,913		$	3,126		$	121,223		$	3,883		$	4,128
	Commercial & industrial		8,821			333			803			47,263			450			1,921
	Commercial construction		14,620			509			593			40,202			722			1,016
	Total commercial		99,501			3,755			4,522			208,688			5,055			7,065
	Residential mortgage		19,906			882			862			23,547			734			832
	Residential construction		14,219			850			882			48,679			989			1,422
	Consumer installment		228			17			17			393			20			21
	Total	$	133,854		$	5,504		$	6,283		$	281,307		$	6,798		$	9,340
Schedule of recorded investments in individually evaluated impaired loans	'
		30-Sep-13									31-Dec-12									30-Sep-12
		Unpaid			Recorded			Allowance			Unpaid Principal Balance			Recorded Investment			Allowance			Unpaid Principal Balance			Recorded Investment			Allowance
		Principal			Investment			for Loan									for Loan									for Loan
		Balance						Losses									Losses Allocated									Losses Allocated
								Allocated
	With no related allowance recorded:
	Commercial (secured by real estate)	$	25,066		$	20,384		$	-		$	74,066		$	62,609		$	-		$	85,137		$	77,801		$	-
	Commercial & industrial		235			235			-			74,572			49,572			-			76,247			51,247			-
	Commercial construction		1,127			1,127			-			23,938			17,305			-			17,739			16,656			-
	Total commercial		26,428			21,746			-			172,576			129,486			-			179,123			145,704			-
	Residential mortgage		4,768			3,729			-			10,336			8,383			-			11,091			8,746			-
	Residential construction		9,101			7,364			-			35,439			19,093			-			32,228			19,601			-
	Consumer installment		-			-			-			-			-			-			62			62			-
	Total with no related allowance recorded		40,297			32,839			-			218,351			156,962			-			222,504			174,113			-
	With an allowance recorded:
	Commercial (secured by real estate)		36,183			34,079			1,975			44,395			41,800			6,106			44,590			41,222			6,692
	Commercial & industrial		4,002			3,870			546			2,170			1,929			490			2,321			2,284			725
	Commercial construction		12,430			12,351			150			23,746			22,863			2,239			26,476			25,593			2,289
	Total commercial		52,615			50,300			2,671			70,311			66,592			8,835			73,387			69,099			9,706
	Residential mortgage		15,598			15,241			2,008			14,267			13,864			2,165			13,410			12,932			1,856
	Residential construction		7,257			6,757			662			15,412			14,962			625			13,105			11,975			1,270
	Consumer installment		214			204			11			441			430			19			444			436			21
	Total with an allowance recorded		75,684			72,502			5,352			100,431			95,848			11,644			100,346			94,442			12,853
	Total	$	115,981		$	105,341		$	5,352		$	318,782		$	252,810		$	11,644		$	322,850		$	268,555		$	12,853
Schedule of recorded investment in nonaccrual loans by loan class	'
		Nonaccrual Loans
		September 30,			December 31,			September 30,
		2013			2012			2012
	Commercial (secured by real estate)	$	8,015		$	22,148		$	25,896
	Commercial & industrial		609			31,817			32,678
	Commercial construction		343			23,843			18,590
	Total commercial		8,967			77,808			77,164
	Residential mortgage		12,504			12,589			13,996
	Residential construction		4,097			18,702			22,935
	Consumer installment		520			795			906
	Total	$	26,088		$	109,894		$	115,001
	Balance as a percentage of unpaid principal		61.6	%		69.5	%		68.8	%
Schedule of aging of the recorded investment in past due loans	'
		Loans Past Due												Loans Not
	As of September 30, 2013	30 - 59 Days			60 - 89 Days			> 90 Days			Total			Past Due			Total
	Commercial (secured by real estate)	$	2,026		$	1,283		$	2,429		$	5,738		$	1,737,033		$	1,742,771
	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		8,849			3,077			4,652			16,578			1,292,717			1,309,295
	Residential construction		3,705			418			924			5,047			312,742			317,789
	Consumer installment		853			103			149			1,105			301,547			302,652
	Total loans	$	16,212		$	5,072		$	8,482		$	29,766		$	4,237,301		$	4,267,067
	As of December 31, 2012
	Commercial (secured by real estate)	$	8,106		$	3,232		$	7,476		$	18,814		$	1,794,551		$	1,813,365
	Commercial & industrial		1,565			429			867			2,861			455,385			458,246
	Commercial construction		2,216			-			4,490			6,706			148,063			154,769
	Total commercial		11,887			3,661			12,833			28,381			2,397,999			2,426,380
	Residential mortgage		12,292			2,426			4,848			19,566			1,194,637			1,214,203
	Residential construction		2,233			1,934			5,159			9,326			372,351			381,677
	Consumer installment		1,320			245			289			1,854			150,894			152,748
	Total loans	$	27,732		$	8,266		$	23,129		$	59,127		$	4,115,881		$	4,175,008
	As of September 30, 2012
	Commercial (secured by real estate)	$	5,395		$	5,210		$	11,103		$	21,708		$	1,797,447		$	1,819,155
	Commercial & industrial		1,499			295			696			2,490			457,507			459,997
	Commercial construction		213			880			3,838			4,931			155,834			160,765
	Total commercial		7,107			6,385			15,637			29,129			2,410,788			2,439,917
	Residential mortgage		11,771			4,798			5,556			22,125			1,152,111			1,174,236
	Residential construction		4,318			2,319			11,054			17,691			371,051			388,742
	Consumer installment		1,269			219			394			1,882			133,068			134,950
	Total loans	$	24,465		$	13,721		$	32,641		$	70,827		$	4,067,018		$	4,137,845
Schedule of additional information on troubled debt restructurings	'
		30-Sep-13									31-Dec-12									30-Sep-12
		Number			Pre-			Post-			Number			Pre-Modification			Post-Modification Outstanding Recorded Investment			Number			Pre-			Post-
		of			Modification			Modification			of			Outstanding Recorded Investment						of			Modification			Modification
		Contracts			Outstanding			Outstanding Recorded Investment			Contracts									Contracts			Outstanding Recorded Investment			Outstanding Recorded Investment
					Recorded
					Investment
	Commercial (sec by RE)		77		$	47,963		$	43,163			96		$	80,261		$	75,340			101		$	84,672		$	79,645
	Commercial & industrial		34			3,051			2,919			32			7,492			7,250			30			7,237			7,199
	Commercial construction		12			12,904			12,825			25			37,537			33,809			25			37,832			35,866
	Total commercial		123			63,918			58,907			153			125,290			116,399			156			129,741			122,710
	Residential mortgage		120			19,032			17,929			117			20,323			19,296			114			18,226			17,487
	Residential construction		55			12,360			10,290			67			25,822			23,786			73			28,629			24,772
	Consumer installment		36			214			204			51			1,292			1,282			50			1,371			1,363
	Total loans		334		$	95,524		$	87,330			388		$	172,727		$	160,763			393		$	177,967		$	166,332
Schedule of loans modified under the terms of TDR	'
	New Troubled Debt	Number of Contracts			Pre- Modification Outstanding Recorded Investment			Post- Modification Outstanding Recorded Investment			Modified Within the Previous
	Restructurings for the Three										Twelve Months that Have
	Months Ended September 30, 2013										Subsequently Defaulted During
											the Three Months Ended
											30-Sep-13
											Number of Contracts			Recorded Investment
	Commercial (secured by real estate)		1		$	1,841		$	741		$	-		$	-
	Commercial & industrial		1			68			68			-			-
	Commercial construction		-			-			-			-			-
	Total commercial		2			1,909			809			-			-
	Residential mortgage		16			2,365			2,207			1			533
	Residential construction		3			727			727			1			414
	Consumer installment		1			7			7			2			9
	Total loans		22		$	5,008		$	3,750			4		$	956
	New Troubled Debt	Number of Contracts			Pre-			Post- Modification Outstanding Recorded Investment			Modified Within the Previous
	Restructurings for the Nine				Modification Outstanding Recorded Investment						Twelve Months that Have
	Months Ended September 30, 2013										Subsequently Defaulted During
											the Nine Months Ended
											30-Sep-13
											Number of Contracts			Recorded Investment
	Commercial (secured by real estate)		18		$	11,932		$	10,832		$	1		$	432
	Commercial & industrial		10			883			777			1			35
	Commercial construction		-			-			-			2			1,454
	Total commercial		28			12,815			11,609			4			1,921
	Residential mortgage		29			5,129			4,827			3			641
	Residential construction		10			1,850			1,721			3			531
	Consumer installment		5			28			28			5			29
	Total loans		72		$	19,822		$	18,185			15		$	3,122
	New Troubled Debt	Number of Contracts			Pre-			Post- Modification Outstanding Recorded Investment			Modified Within the Previous
	Restructurings for the Three				Modification Outstanding Recorded Investment						Twelve Months that Have
	Months Ended September 30, 2012										Subsequently Defaulted During
											the Three Months Ended
											30-Sep-12
											Number of Contracts			Recorded Investment
	Commercial (secured by real estate)		13		$	7,914		$	7,836		$	3		$	324
	Commercial & industrial		3			162			162			-			-
	Commercial construction		6			5,531			5,451			-			-
	Total commercial		22			13,607			13,449			3			324
	Residential mortgage		15			2,252			2,102			2			47
	Residential construction		12			6,569			6,188			10			2,953
	Consumer installment		7			44			43			1			2
	Total loans		56		$	22,472		$	21,782			16		$	3,326
	New Troubled Debt	Number of Contracts			Pre-			Post- Modification Outstanding Recorded Investment			Modified Within the Previous
	Restructurings for the Nine				Modification Outstanding Recorded Investment						Twelve Months that Have
	Months Ended September 30, 2012										Subsequently Defaulted During
											the Nine Months Ended
											30-Sep-12
											Number of Contracts			Recorded Investment
	Commercial (secured by real estate)		47		$	30,828		$	29,305		$	6		$	2,631
	Commercial & industrial		20			3,484			3,484			2			48
	Commercial construction		20			34,014			33,934			2			4,174
	Total commercial		87			68,326			66,723			10			6,853
	Residential mortgage		59			12,819			12,487			6			447
	Residential construction		46			17,958			15,738			14			4,550
	Consumer installment		22			314			308			2			8
	Total loans		214		$	99,417		$	95,256			32		$	11,858
Schedule of risk category of loans by class of loans	'
								Substandard						Doubtful /
	As of September 30, 2013	Pass			Watch			Performing			Nonaccrual			Loss			Not Rated			Total
	Commercial (secured by real estate)	$	1,603,863		$	55,351		$	75,542		$	8,015		$	-		$	-		$	1,742,771
	Commercial & industrial		435,635			10,062			10,342			609			-			766			457,414
	Commercial construction		109,332			10,560			16,911			343			-			-			137,146
	Total commercial		2,148,830			75,973			102,795			8,967			-			766			2,337,331
	Residential mortgage		1,215,149			28,470			53,172			12,504			-			-			1,309,295
	Residential construction		283,197			14,943			15,552			4,097			-			-			317,789
	Consumer installment		298,823			1,162			2,147			520			-			-			302,652
	Total loans	$	3,945,999		$	120,548		$	173,666		$	26,088		$	-		$	766		$	4,267,067
	As of December 31, 2012
	Commercial (secured by real estate)	$	1,592,677		$	80,997		$	117,543		$	22,148		$	-		$	-		$	1,813,365
	Commercial & industrial		401,606			5,404			18,477			31,817			-			942			458,246
	Commercial construction		104,296			7,345			19,285			23,843			-			-			154,769
	Total commercial		2,098,579			93,746			155,305			77,808			-			942			2,426,380
	Residential mortgage		1,102,746			33,689			65,179			12,589			-			-			1,214,203
	Residential construction		292,264			32,907			37,804			18,702			-			-			381,677
	Consumer installment		147,214			1,086			3,653			795			-			-			152,748
	Total loans	$	3,640,803		$	161,428		$	261,941		$	109,894		$	-		$	942		$	4,175,008
	As of September 30, 2012
	Commercial (secured by real estate)	$	1,591,321		$	75,606		$	126,332		$	25,896		$	-		$	-		$	1,819,155
	Commercial & industrial		403,460			4,179			18,740			32,678			-			940			459,997
	Commercial construction		108,909			6,086			27,180			18,590			-			-			160,765
	Total commercial		2,103,690			85,871			172,252			77,164			-			940			2,439,917
	Residential mortgage		1,051,402			36,640			72,198			13,996			-			-			1,174,236
	Residential construction		292,002			38,635			35,170			22,935			-			-			388,742
	Consumer installment		130,277			881			2,886			906			-			-			134,950
	Total loans	$	3,577,371		$	162,027		$	282,506		$	115,001		$	-		$	940		$	4,137,845

Foreclosed_Property_Tables

Foreclosed Property (Tables)	9 Months Ended
	Sep. 30, 2013
Foreclosed Property [Abstract]	'
Schedule of classifications of foreclosed properties	'
		September 30,			December 31,			September 30,
		2013			2012			2012
	Commercial real estate	$	1,130		$	6,368		$	9,613
	Commercial construction		376			2,204			3,121
	Total commercial		1,506			8,572			12,734
	Residential mortgage		2,420			5,192			6,509
	Residential construction		1,981			11,454			19,043
	Total foreclosed property		5,907			25,218			38,286
	Less valuation allowance		(1,440	)		(6,954	)		(11,328	)
	Foreclosed property, net	$	4,467		$	18,264		$	26,958
	Balance as a percentage of original loan unpaid principal		41.5	%		39.7	%		36.4	%
Schedule of activity in the valuation allowance for foreclosed property	'
		Three Months Ended						Nine Months Ended
		September 30,						September 30,
		2013			2012			2013			2012
	Balance at beginning of period	$	3,602		$	11,872		$	6,954		$	18,982
	Additions charged to expense		329			2,394			2,739			5,513
	Disposals		(2,491	)		(2,938	)		(8,253	)		(13,167	)
	Balance at end of period	$	1,440		$	11,328		$	1,440		$	11,328
Schedule of expenses related to foreclosed assets	'
		Three Months Ended						Nine Months Ended
		September 30,						September 30,
		2013			2012			2013			2012
	Net loss on sales	$	513		$	350		$	3,563		$	174
	Provision for unrealized losses		329			2,394			2,739			5,513
	Operating expenses		(648	)		962			1,376			3,695
	Total foreclosed property expense	$	194		$	3,706		$	7,678		$	9,382

Longterm_Debt_Tables

Long-term Debt (Tables)	9 Months Ended
	Sep. 30, 2013
Debt Disclosure [Abstract]	'
Schedule of long-term debt	'
		30-Sep-13		31-Dec-12		30-Sep-12		Issue		Stated		Earliest		Interest Rate
								Date		Maturity		Call
										Date		Date
	2013 senior debentures	$	40,000	$	-	$	-		2013		2018		2015		6	%
	2012 senior debentures		35,000		35,000		-		2012		2017		2017		9
	Total senior debentures		75,000		35,000		-
	2002 subordinated debentures		-		-		30,500		2002		2012		2012		6.75	%
	2003 subordinated debentures		-		35,000		35,000		2003		2015		2010		7.5
	Total subordinated debentures		-		35,000		65,500
	United Community Capital Trust		21,650		21,650		21,650		1998		2028		2008		8.125	%
	United Community Statutory Trust I		5,155		5,155		5,155		2000		2030		2010		10.6
	United Community Capital Trust II		10,309		10,309		10,309		2000		2030		2010		11.295
	Southern Bancorp Capital Trust I		4,382		4,382		4,382		2004		2034		2009	Prime + 1.00
	United Community Statutory Trust II		12,131		12,077		12,059		2008		2038		2013		9
	United Community Statutory Trust III		1,238		1,232		1,230		2008		2038		2013	Prime + 3.00
	Total trust preferred securities		54,865		54,805		54,785
	Total long-term debt	$	129,865	$	124,805	$	120,285

Reclassifications_Out_of_Accum1

Reclassifications Out of Accumulated Other Comprehensive Income (Tables)	9 Months Ended
	Sep. 30, 2013
Reclassifications Out Of Accumulated Other Comprehensive Income [Abstract]	'
Schedule of reclassifications out of accumulated other comprehensive income	'
		Amounts Reclassified from
		Accumulated Other Comprehensive
		Income
	Details about Accumulated Other	For the Three Months Ended September 30, 2013			For the Nine Months Ended September 30, 2013			Affected Line Item in the Statement
	Comprehensive Income Components							Where Net Income is Presented
	Unrealized (losses) gains on available-for-sale securities:
		$	-		$	116		Securities gains, net
			-			(45	)	Tax (expense) or benefit
		$	-		$	71		Net of tax
	Amortization of gains included in net income on available-for-sale securities transferred to held to maturity:
		$	214		$	803		Investment securities interest revenue
			(83	)		(310	)	Tax (expense) or benefit
		$	131		$	493		Net of tax
	Gains 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		Other fee revenue
			58			902		Total before tax
			(23	)		(351	)	Tax (expense) or benefit
		$	35		$	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	)	$	(273	)	Salaries and employee benefits expense
	Actuarial losses		(42	)		(126	)	Salaries and employee benefits expense
			(133	)		(399	)	Total before tax
			52			155		Tax (expense) or benefit
		$	(81	)	$	(244	)	Net of tax
	Total reclassifications for the period	$	85		$	871		Net of tax

Earnings_Per_Share_Tables

Earnings Per Share (Tables)	9 Months Ended
	Sep. 30, 2013
Earnings Per Share [Abstract]	'
Schedule of accrued dividends on preferred stock, including accretion of discounts	'
		Three Months Ended				Nine Months Ended
		30-Sep				30-Sep
		2013		2012		2013		2012
	Series A - 6% fixed	$	3	$	3	$	9	$	9
	Series B - 5% fixed until December 6, 2013, 9% thereafter		2,641		2,619		7,907		7,841
	Series D - LIBOR plus 9.6875%, resets quarterly		415		419		1,250		1,253
	Total preferred stock dividends	$	3,059	$	3,041	$	9,166	$	9,103
Schedule of computation of basic and diluted loss per share	'
		Three Months Ended				Nine Months Ended
		September 30,				September 30,
		2013		2012		2013		2012
	Net income available to common shareholders	$	12,441	$	7,527	$	248,063	$	19,492
	Weighted average shares outstanding:
	Basic		59,100		57,880		58,443		57,826
	Effect of dilutive securities
	Convertible securities		-		-		-		-
	Stock options		1		-		1		-
	Warrants		101		-		-		-
	Diluted		59,202		57,880		58,444		57,826
	Income per common share:
	Basic	$	0.21	$	0.13	$	4.24	$	0.34
	Diluted	$	0.21	$	0.13	$	4.24	$	0.34

Derivatives_and_Hedging_Activi1

Derivatives and Hedging Activities (Tables)	9 Months Ended
	Sep. 30, 2013
Derivatives and Hedging Activities [Abstract]	'
Schedule of derivative financial instruments on consolidated balance sheet	'
	Derivatives accounted for as hedges under ASC 815
					Fair Value
	Interest Rate		Balance Sheet		September 30,				December 31,				September 30,
	Products		Location		2013				2012				2012
	Asset derivatives		Other assets		$	6,289			$	23			$	182
	Liability derivatives		Other liabilities		$	35,451			$	11,900			$	9,758
	Derivatives not accounted for as hedges under ASC 815
					Fair Value
	Interest Rate		Balance Sheet		September 30,				December 31,				September 30,
	Products		Location			2013				2012				2012
	Asset derivatives		Other assets		$	1,803			$	635			$	596
	Liability derivatives		Other liabilities		$	1,818			$	643			$	605
Schedule of effect of fair value hedging derivative financial instruments on the consolidated statement of operations	'
	Location of Gain (Loss)		Amount of Gain (Loss) Recognized in								Amount of Gain (Loss) Recognized in
	Recognized in Income		Income on Derivative								Income on Hedged Item
	on Derivative		2013				2012				2013				2012
	Three Months Ended September 30,
	Other fee revenue		$	(2,740	)		$	922			$	2,778			$	(156	)
	Nine Months Ended September 30,
	Other fee revenue		$	(15,796	)		$	1,745			$	16,037			$	(1,168	)
Schedule of effect of cash flow hedging derivative financial instruments on other comprehensive income	'
		Amount of Gain (Loss)
		Recognized in Other
		Comprehensive Income									Gain (Loss) Reclassified from Accumulated								Gain (Loss) Recognized in Income on
			on Derivative								Other Comprehensive Income into Income								Derivative
			(Effective Portion)								(Effective Portion)								(Ineffective Portion)
			2013				2012				Location		2013				2012		Location	2013			2012
	Three Months Ended September 30,
											Interest revenue		$	10			$	649
											Other fee revenue			48				114
	Interest rate products		$	(3,507	)		$	(3,943	)		Total		$	58			$	763	Other fee revenue	$	(33	)	$	-
	Nine Months Ended September 30,
											Interest revenue		$	851			$	2,839
											Other fee revenue			53				238
	Interest rate products		$	8,595			$	(8,798	)		Total		$	904			$	3,077	Other fee revenue	$	46		$	-
Schedule of other derivatives not accounted for as hedges	'
	Location of Gain (Loss)		Amount of Gain (Loss) Recognized in
	Recognized in Income		Income on Customer Derivatives
	on Derivative		2013				2012
	Three Months Ended September 30,
	Other fee revenue		$	442			$	278
	Nine Months Ended September 30,
	Other fee revenue		$	1,182			$	346

StockBased_Compensation_Tables

Stock-Based Compensation (Tables)	9 Months Ended
	Sep. 30, 2013
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, 2012		482,528		$	97.73
	Granted		5,000			15.09
	Forfeited		(935	)		30.23
	Expired		(115,144	)		92.09
	Outstanding at September 30, 2013		371,449			98.54		3.4	$	38
	Exercisable at September 30, 2013		361,249			100.95		3.2		19
Schedule of key assumptions used to determine the fair value of options granted to employees	'
		Nine Months Ended
		September 30,
		2013
	Expected volatility		30	%
	Expected dividend yield		0	%
	Expected life (in years)		6.25
	Risk-free rate		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, 2012		485,584		$	10.72
	Granted		795,833			14.69
	Excercised		(190,366	)		13.32
	Cancelled		(17,792	)		9.3
	Outstanding at September 30, 2013		1,073,259			13.23
	Vested at September 30, 2013		22,462			10.11

Assets_and_Liabilities_Measure1

Assets and Liabilities Measured at Fair Value (Tables)	9 Months Ended
	Sep. 30, 2013
Fair Value [Abstract]	'
Schedule of assets and liabilities measured at fair value on a recurring basis	'
	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
	31-Dec-12	Level 1		Level 2		Level 3		Total
	Assets:
	Securities available for sale
	State and political subdivisions	$	-	$	29,052	$	-	$	29,052
	Mortgage-backed securities		-		1,428,502		-		1,428,502
	Corporate bonds		-		163,312		350		163,662
	Asset-backed securities		-		210,556		-		210,556
	Other		-		2,821		-		2,821
	Deferred compensation plan assets		3,101		-		-		3,101
	Derivative financial instruments		-		658		-		658
	Total assets	$	3,101	$	1,834,901	$	350	$	1,838,352
	Liabilities:
	Deferred compensation plan liability	$	3,101	$	-	$	-	$	3,101
	Brokered certificates of deposit		-		154,641		-		154,641
	Derivative financial instruments		-		12,543		-		12,543
	Total liabilities	$	3,101	$	167,184	$	-	$	170,285
	30-Sep-12	Level 1		Level 2		Level 3		Total
	Assets:
	Securities available for sale:
	State and political subdivisions	$	-	$	28,878	$	-	$	28,878
	Mortgage-backed securities		-		1,382,940		-		1,382,940
	Corporate bonds		-		142,802		350		143,152
	Asset-backed securities		-		204,429		-		204,429
	Other		-		2,595		-		2,595
	Deferred compensation plan assets		3,072		-		-		3,072
	Derivative financial instruments		-		778		-		778
	Total assets	$	3,072	$	1,762,422	$	350	$	1,765,844
	Liabilities:
	Deferred compensation plan liability	$	3,072	$	-	$	-	$	3,072
	Brokered certificates of deposit		-		122,211		-		122,211
	Derivative financial instruments		-		10,363		-		10,363
	Total liabilities	$	3,072	$	132,574	$	-	$	135,646
Schedule of assets measured at fair value on a recurring basis using significant unobservable inputs	'
		Securities Available for Sale				Securities Available for Sale
		Three Months Ended				Nine Months Ended
		September 30,				September 30,
	Securities Available for Sale	2013		2012		2013		2012
	Balance at beginning of period	$	350	$	350	$	350	$	350
	Amounts included in earnings		-		-		-		-
	Paydowns		-		-		-		-
	Balance at end of period	$	350	$	350	$	350	$	350
Schedule of presentation of united's assets and liabilities measured at fair value on nonrecurring basis	'
	30-Sep-13	Level 1		Level 2		Level 3		Total
	Assets
	Loans	$	-	$	-	$	76,393	$	76,393
	Foreclosed properties		-		-		3,898		3,898
	Total	$	-	$	-	$	80,291	$	80,291
	31-Dec-12
	Assets
	Loans	$	-	$	-	$	165,751	$	165,751
	Foreclosed properties		-		-		14,788		14,788
	Total	$	-	$	-	$	180,539	$	180,539
	30-Sep-12
	Assets
	Loans	$	-	$	-	$	172,909	$	172,909
	Foreclosed properties		-		-		20,369		20,369
	Total	$	-	$	-	$	193,278	$	193,278
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-13	Amount		Level 1		Level 2		Level 3		Total
	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
	31-Dec-12
	Assets:
	Securities held to maturity	$	244,184	$	-	$	261,131	$	-	$	261,131
	Loans, net		4,067,871		-		-		3,957,669		3,957,669
	Mortgage loans held for sale		28,821		-		29,693		-		29,693
	Liabilities:
	Deposits		5,952,140		-		5,988,743		-		5,988,743
	Federal Home Loan Bank advances		40,125		-		40,125		-		40,125
	Long-term debt		124,805		-		-		118,626		118,626
	30-Sep-12
	Assets:
	Securities held to maturity	$	262,648	$	-	$	281,336	$	-	$	281,336
	Loans, net		4,030,203		-		-		3,954,607		3,954,607
	Mortgage loans held for sale		30,571		-		31,350		-		31,350
	Liabilities:
	Deposits		5,822,699		-		5,848,540		-		5,848,540
	Federal Home Loan Bank advances		50,125		-		50,125		-		50,125
	Long-term debt		120,285		-		-		113,624		113,624

Commitments_and_Contingencies_

Commitments and Contingencies (Tables)	9 Months Ended
	Sep. 30, 2013
Commitments and Contingencies Disclosure [Abstract]	'
Schedule of contractual amount of off-balance sheet instruments	'
		30-Sep-13		31-Dec-12		30-Sep-12
	Financial instruments whose contract amounts represent credit risk:
	Commitments to extend credit	$	677,891	$	313,798	$	483,844
	Letters of credit		9,818		13,683		13,416

Offsetting_Assets_and_Liabilit2

Offsetting Assets and Liabilities - Summary of amounts outstanding under master netting agreements (Details) (USD $)	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2012
In Thousands, unless otherwise specified
Offsetting [Abstract]	'	'	'
Repurchase and reverse repurchase agreements gross amounts of recognized assets	$405,000	$325,000	$270,000
Repurchase and reverse repurchase agreements gross amounts offset on balance sheet assets	-350,000	-265,000	-225,000
Repurchase and reverse repurchase agreements net assets balance	55,000	60,000	45,000
Repurchase and reverse repurchase agreements gross amounts not off set in balance sheet assets of financial instruments	'	'	'
Repurchase and reverse repurchase agreements gross amounts not off set in balance sheet assets of collateral received	'	'	'
Repurchase and reverse repurchase agreements net assets	55,000	60,000	45,000
Securities lending transactions, gross amounts of recognized assets	'	50,000	100,000
Securities lending transactions, gross amounts offset on balance sheet assets	'	-50,000	-100,000
Securities lending transactions, net assets balance	'	'	'
Securities lending transactions, gross amounts not off set in balance sheet assets of financial instruments	'	'	'
Securities lending transactions, gross amounts not off set in balance sheet assets of collateral received	'	'	'
Securities lending transactions, assets	'	'	'
Derivative, gross amounts of recognized assets	8,092	658	778
Derivative, gross amounts offset on balance sheet	'	'	'
Derivatives asset net balance	8,092	658	778
Derivative, gross amounts not off set in balance sheet assets of financial instruments	'	'	'
Derivative, gross amounts not off set in balance sheet assets of collateral received	'	'	'
Derivative asset	8,092	658	778
Offsetting assets gross amounts of recognized assets	413,092	375,658	370,778
Offsetting assets gross amounts offset on balance sheet	-350,000	-315,000	-325,000
Offsetting assets net asset balance	63,092	60,658	45,778
Offsetting assets gross amounts not offset in balance sheet of financial instruments	'	'	'
Offsetting assets gross amounts not offset in the balance sheet of collateral received	'	'	'
Offsetting assets net amount	63,092	60,658	45,778
Weighted average interest rate of reverse repurchase agreements assets	1.13%	1.18%	1.19%
Repurchase and reverse repurchase agreements gross amounts of recognized liabilities	350,000	265,000	225,000
Repurchase and reverse repurchase agreements gross amounts offset on balance sheet liabilities	-350,000	-265,000	-225,000
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	'	'	'
Repurchase and reverse repurchase agreements gross amounts not off set in balance sheet liabilities of collateral pledged	'	'	'
Repurchase and reverse repurchase agreements net liabilities	'	'	'
Securities lending transactions, gross amounts of recognized liabilities	'	50,000	100,000
Securities lending transactions, gross amounts offset on balance sheet	'	-50,000	-100,000
Securities lending transactions, net liabilities balance	'	'	'
Securities lending transactions, gross amounts not offset in balance sheet of financial instruments	'	'	'
Securities lending transactions, gross amounts not offset in the balance sheet of collateral pledged	'	'	'
Securities lending transactions, liability	'	'	'
Derivative liability, gross amounts of recognized liabilities	37,269	12,543	10,363
Derivative liability, gross amounts offset on balance sheet liabilities	'	'	'
Derivative liability, net liabilities balance	37,269	12,543	10,363
Derivative liability, gross amounts not off set in balance sheet liabilities of financial instruments	'	'	'
Derivative liability, gross amounts not off set in balance sheet liabilities of collateral pledged	25,579	11,493	11,126
Derivative liability	11,690	1,050	-763
Offsetting liabilities gross amounts of recognized liabilities	387,269	327,543	335,363
Offsetting liabilities gross amounts offset on balance sheet	-350,000	-315,000	-325,000
Offsetting liabilities, net liabilities balance	37,269	12,543	10,363
Offsetting liabilities gross amounts not offset in balance sheet of financial instruments	'	'	'
Offsetting liabilities gross amounts not offset in the balance sheet of collateral pledged	25,579	11,493	11,126
Offsetting liabilities net amount	$11,690	$1,050	($763)
Weighted average interest rate of reverse repurchase agreements liabilities	0.28%	0.43%	0.41%

Securities_Summary_of_securiti

Securities - Summary of securities sales activity (Details) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Investment Securities [Abstract]	'	'	'	'
Proceeds from sales	$5,000	'	$20,751	$371,103
Gross gains on sales	'	'	116	7,047
Gross losses on sales	'	'	'	'
Net gains on sales of securities	'	'	116	7,047
Income tax expense attributable to sales	'	'	$45	$2,631

Securities_Amortized_cost_gros

Securities - Amortized cost, gross unrealized gains and losses and fair value of securities held to maturity (Details 1) (USD $)	9 Months Ended				12 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013		Sep. 30, 2012		Dec. 31, 2012
Held-to-maturity Securities, Unclassified [Abstract]	'		'		'
Amortized Cost	$205,613		$262,648		$244,184
Gross Unrealized Gains	9,490		18,688		16,947
Gross Unrealized Losses	452		'		'
Fair Value	214,651		281,336		261,131
State and political subdivisions	'		'		'
Held-to-maturity Securities, Unclassified [Abstract]	'		'		'
Amortized Cost	51,745		51,790		51,780
Gross Unrealized Gains	2,723		5,795		5,486
Gross Unrealized Losses	53		'		'
Fair Value	54,415		57,585		57,266
Mortgage-backed securities	'		'		'
Held-to-maturity Securities, Unclassified [Abstract]	'		'		'
Amortized Cost	153,868	[1]	210,858	[1]	192,404	[1]
Gross Unrealized Gains	6,767	[1]	12,893	[1]	11,461	[1]
Gross Unrealized Losses	399	[1]	'	[1]	'	[1]
Fair Value	$160,236	[1]	$223,751	[1]	$203,865	[1]
[1]	All are residential type mortgage-backed securities

Securities_Cost_basis_unrealiz

Securities - Cost basis, unrealized gains and losses, and fair value of securities available for sale (Details 2) (USD $)	9 Months Ended				12 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013		Sep. 30, 2012		Dec. 31, 2012
Investment securities available-for-sale:	'		'		'
Amortized Cost	$1,977,807		$1,738,837		$1,817,774
Gross Unrealized Gains	18,134		30,330		26,852
Gross Unrealized Losses	32,517		7,173		10,033
Fair Value	1,963,424		1,761,994		1,834,593
State and political subdivisions	'		'		'
Investment securities available-for-sale:	'		'		'
Amortized Cost	22,781		27,403		27,717
Gross Unrealized Gains	893		1,478		1,354
Gross Unrealized Losses	150		3		19
Fair Value	23,524		28,878		29,052
Mortgage-backed securities	'		'		'
Investment securities available-for-sale:	'		'		'
Amortized Cost	1,390,280	[1]	1,356,002	[1]	1,408,042	[1]
Gross Unrealized Gains	14,469	[1]	27,689	[1]	22,552	[1]
Gross Unrealized Losses	21,432	[1]	751	[1]	2,092	[1]
Fair Value	1,383,317	[1]	1,382,940	[1]	1,428,502	[1]
Corporate bonds	'		'		'
Investment securities available-for-sale:	'		'		'
Amortized Cost	255,391		148,315		169,783
Gross Unrealized Gains	936		450		1,052
Gross Unrealized Losses	9,376		5,613		7,173
Fair Value	246,951		143,152		163,662
Asset-backed securities	'		'		'
Investment securities available-for-sale:	'		'		'
Amortized Cost	306,961		204,522		209,411
Gross Unrealized Gains	1,836		713		1,894
Gross Unrealized Losses	1,559		806		749
Fair Value	307,238		204,429		210,556
Other	'		'		'
Investment securities available-for-sale:	'		'		'
Amortized Cost	2,394		2,595		2,821
Gross Unrealized Gains	'		'		'
Gross Unrealized Losses	'		'		'
Fair Value	$2,394		$2,595		$2,821
[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 3) (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013
Summary of held to maturity securities in an unrealized loss position	'
Fair Value, Less than 12 Months	$12,834
Unrealized Loss, Less than 12 Months	452
Fair Value, 12 Months or More	'
Unrealized Loss, 12 Months or More	'
Fair Value, Total	12,834
Unrealized Loss, Total	452
State and political subdivisions	'
Summary of held to maturity securities in an unrealized loss position	'
Fair Value, Less than 12 Months	4,825
Unrealized Loss, Less than 12 Months	53
Fair Value, 12 Months or More	'
Unrealized Loss, 12 Months or More	'
Fair Value, Total	4,825
Unrealized Loss, Total	53
Mortgage-backed securities	'
Summary of held to maturity securities in an unrealized loss position	'
Fair Value, Less than 12 Months	8,009
Unrealized Loss, Less than 12 Months	399
Fair Value, 12 Months or More	'
Unrealized Loss, 12 Months or More	'
Fair Value, Total	8,009
Unrealized Loss, Total	$399

Securities_Summary_of_availabl

Securities - Summary of available for sale securities in unrealized loss position (Details 4) (USD $)	9 Months Ended		12 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012
Summary of available for sale securities in an unrealized loss position	'	'	'
Fair Value, Less than 12 Months	$732,740	$200,955	$433,595
Unrealized Loss, Less than 12 Months	25,438	1,557	2,994
Fair Value, 12 Months or More	209,767	130,661	93,913
Unrealized Loss, 12 Months or More	7,079	5,616	7,039
Fair Value, Total	942,507	331,616	527,508
Unrealized Loss, Total	32,517	7,173	10,033
State and political subdivisions	'	'	'
Summary of available for sale securities in an unrealized loss position	'	'	'
Fair Value, Less than 12 Months	4,533	'	3,674
Unrealized Loss, Less than 12 Months	148	'	17
Fair Value, 12 Months or More	10	12	10
Unrealized Loss, 12 Months or More	2	3	2
Fair Value, Total	4,543	12	3,684
Unrealized Loss, Total	150	3	19
Mortgage-backed securities	'	'	'
Summary of available for sale securities in an unrealized loss position	'	'	'
Fair Value, Less than 12 Months	533,681	105,296	326,485
Unrealized Loss, Less than 12 Months	17,958	741	2,092
Fair Value, 12 Months or More	100,534	17,059	'
Unrealized Loss, 12 Months or More	3,474	10	'
Fair Value, Total	634,215	122,355	326,485
Unrealized Loss, Total	21,432	751	2,092
Corporate bonds	'	'	'
Summary of available for sale securities in an unrealized loss position	'	'	'
Fair Value, Less than 12 Months	115,511	4,893	21,248
Unrealized Loss, Less than 12 Months	6,463	10	136
Fair Value, 12 Months or More	53,042	113,590	93,903
Unrealized Loss, 12 Months or More	2,913	5,603	7,037
Fair Value, Total	168,553	118,483	115,151
Unrealized Loss, Total	9,376	5,613	7,173
Asset-backed securities	'	'	'
Summary of available for sale securities in an unrealized loss position	'	'	'
Fair Value, Less than 12 Months	79,015	90,766	82,188
Unrealized Loss, Less than 12 Months	869	806	749
Fair Value, 12 Months or More	56,181	'	'
Unrealized Loss, 12 Months or More	690	'	'
Fair Value, Total	135,196	90,766	82,188
Unrealized Loss, Total	$1,559	$806	$749

Securities_Amortized_cost_and_

Securities - Amortized cost and fair value of held to maturity and available for sale securities (Details 5) (USD $)	Sep. 30, 2013		Dec. 31, 2012		Sep. 30, 2012
In Thousands, unless otherwise specified
Available for Sale - Amortized Cost and Fair Value	'		'		'
Available for Sale, Amortized Cost	$1,977,807		$1,817,774		$1,738,837
Securities available-for-sale	1,963,424		1,834,593		1,761,994
Held to Maturity - Amortized Cost and Fair Value	'		'		'
Held to Maturity, Amortized Cost	205,613		244,184		262,648
Held-To-Maturity, Fair value	214,651		261,131		281,336
State and political subdivisions	'		'		'
Available for Sale - Amortized Cost and Fair Value	'		'		'
Available for Sale, Amortized Cost, Within 1 year	2,832		'		'
Available for Sale, Fair Value, Within 1 year	2,876		'		'
Available for Sale, Amortized Cost, 1 to 5 years	16,485		'		'
Available for Sale, Fair Value, 1 to 5 years	17,144		'		'
Available for Sale, Amortized Cost, 5 to 10 years	2,616		'		'
Available for Sale, Fair Value, 5 to 10 years	2,616		'		'
Available for Sale, Amortized Cost, More than 10 years	848		'		'
Available for Sale, Fair Value, More than 10 years	888		'		'
Available for Sale, Amortized Cost	22,781		'		'
Securities available-for-sale	23,524		'		'
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	12,472		'		'
Held to Maturity, Fair Value, 1 to 5 years	13,267		'		'
Held to Maturity, Amortized Cost, 5 to 10 years	25,062		'		'
Held to Maturity, Fair Value, 5 to 10 years	26,322		'		'
Held to Maturity, Amortized Cost, More than 10 years	14,211		'		'
Held to Maturity, Fair Value, More than 10 years	14,826		'		'
Held to Maturity, Amortized Cost	51,745		51,780		51,790
Held-To-Maturity, Fair value	54,415		57,266		57,585
Corporate bonds	'		'		'
Available for Sale - Amortized Cost and Fair Value	'		'		'
Available for Sale, Amortized Cost, 1 to 5 years	38,245		'		'
Available for Sale, Fair Value, 1 to 5 years	38,388		'		'
Available for Sale, Amortized Cost, 5 to 10 years	206,377		'		'
Available for Sale, Fair Value, 5 to 10 years	198,370		'		'
Available for Sale, Amortized Cost, More than 10 years	10,769		'		'
Available for Sale, Fair Value, More than 10 years	10,193		'		'
Available for Sale, Amortized Cost	255,391		'		'
Securities available-for-sale	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	'		'		'
Asset-backed securities	'		'		'
Available for Sale - Amortized Cost and Fair Value	'		'		'
Available for Sale, Amortized Cost, 1 to 5 years	72,616		'		'
Available for Sale, Fair Value, 1 to 5 years	72,188		'		'
Available for Sale, Amortized Cost, 5 to 10 years	145,680		'		'
Available for Sale, Fair Value, 5 to 10 years	146,029		'		'
Available for Sale, Amortized Cost, More than 10 years	88,665		'		'
Available for Sale, Fair Value, More than 10 years	89,021		'		'
Available for Sale, Amortized Cost	306,961		'		'
Securities available-for-sale	307,238		'		'
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	'		'		'
Other	'		'		'
Available for Sale - Amortized Cost and Fair Value	'		'		'
Available for Sale, Amortized Cost, More than 10 years	2,394		'		'
Available for Sale, Fair Value, More than 10 years	2,394		'		'
Available for Sale, Amortized Cost	2,394		'		'
Securities available-for-sale	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	'		'		'
Total securities other than mortgage-backed securities	'		'		'
Available for Sale - Amortized Cost and Fair Value	'		'		'
Available for Sale, Amortized Cost, Within 1 year	2,832		'		'
Available for Sale, Fair Value, Within 1 year	2,876		'		'
Available for Sale, Amortized Cost, 1 to 5 years	127,346		'		'
Available for Sale, Fair Value, 1 to 5 years	127,720		'		'
Available for Sale, Amortized Cost, 5 to 10 years	354,673		'		'
Available for Sale, Fair Value, 5 to 10 years	347,015		'		'
Available for Sale, Amortized Cost, More than 10 years	102,676		'		'
Available for Sale, Fair Value, More than 10 years	102,496		'		'
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	12,472		'		'
Held to Maturity, Fair Value, 1 to 5 years	13,267		'		'
Held to Maturity, Amortized Cost, 5 to 10 years	25,062		'		'
Held to Maturity, Fair Value, 5 to 10 years	26,322		'		'
Held to Maturity, Amortized Cost, More than 10 years	14,211		'		'
Held to Maturity, Fair Value, More than 10 years	14,826		'		'
Mortgage-backed securities	'		'		'
Available for Sale - Amortized Cost and Fair Value	'		'		'
Available for Sale, Amortized Cost	1,390,280		'		'
Securities available-for-sale	1,383,317		'		'
Held to Maturity - Amortized Cost and Fair Value	'		'		'
Held to Maturity, Amortized Cost	153,868	[1]	192,404	[1]	210,858	[1]
Held-To-Maturity, Fair value	$160,236	[1]	$203,865	[1]	$223,751	[1]
[1]	All are residential type mortgage-backed securities

Securities_Details_Textual

Securities (Details Textual) (USD $)	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2012
In Billions, unless otherwise specified	Security
Investment Securities [Abstract]	'	'	'
Carrying value of secure public deposits, FHLB advances and other secured borrowings	$1.34	$1.40	$1.28
Number of available for sale securities in unrealized loss position	133	'	'
Number of held to maturity securities in unrealized loss position	7	'	'

Loans_and_Allowance_for_Loan_L2

Loans and Allowance for Loan Losses - Major classifications of loans (Details) (USD $)	Sep. 30, 2013	Jun. 30, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Dec. 31, 2011
In Thousands, unless otherwise specified
Classifications of loans	'	'	'	'	'	'
Total loans	$4,267,067	'	$4,175,008	$4,137,845	'	'
Less allowance for loan losses	-80,372	'	-107,137	-107,642	'	'
Loans, net	4,186,695	'	4,067,871	4,030,203	'	'
Loans Receivable	'	'	'	'	'	'
Classifications of loans	'	'	'	'	'	'
Total loans	4,267,067	'	4,175,008	4,137,845	'	'
Less allowance for loan losses	-80,372	-81,845	-107,137	-107,642	-112,705	-114,468
Loans, net	4,186,695	'	4,067,871	4,030,203	'	'
Loans Receivable | Commercial (secured by real estate)	'	'	'	'	'	'
Classifications of loans	'	'	'	'	'	'
Total loans	1,742,771	'	1,813,365	1,819,155	'	'
Less allowance for loan losses	-24,135	'	-27,847	-26,775	'	-31,644
Loans Receivable | Commercial & industrial	'	'	'	'	'	'
Classifications of loans	'	'	'	'	'	'
Total loans	457,414	'	458,246	459,997	'	'
Less allowance for loan losses	-7,932	'	-5,537	-4,858	'	-5,681
Loans Receivable | Commercial construction	'	'	'	'	'	'
Classifications of loans	'	'	'	'	'	'
Total loans	137,146	'	154,769	160,765	'	'
Less allowance for loan losses	-3,818	'	-8,389	-8,586	'	-6,097
Loans Receivable | Commercial	'	'	'	'	'	'
Classifications of loans	'	'	'	'	'	'
Total loans	2,337,331	'	2,426,380	2,439,917	'	'
Loans Receivable | Residential mortgage	'	'	'	'	'	'
Classifications of loans	'	'	'	'	'	'
Total loans	1,309,295	'	1,214,203	1,174,236	'	'
Less allowance for loan losses	-20,702	'	-26,642	-27,475	'	-29,076
Loans Receivable | Residential construction	'	'	'	'	'	'
Classifications of loans	'	'	'	'	'	'
Total loans	317,789	'	381,677	388,742	'	'
Less allowance for loan losses	-14,342	'	-26,662	-28,059	'	-30,379
Loans Receivable | Consumer installment	'	'	'	'	'	'
Classifications of loans	'	'	'	'	'	'
Total loans	302,652	'	152,748	134,950	'	'
Less allowance for loan losses	($2,417)	'	($2,747)	($2,870)	'	($2,124)

Loans_and_Allowance_for_Loan_L3

Loans and Allowance for Loan Losses - Changes in allowance for loan losses (Details 1) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Financing Receivable, Allowance For Credit Losses [Line Items]	'	'	'	'
Balance beginning of period	'	'	$107,137	'
Charge-offs:	'	'	'	'
Total loans charged-off	'	'	53,456	'
Recoveries	'	'	'	'
Balance end of period	80,372	107,642	80,372	107,642
Loans Receivable	'	'	'	'
Financing Receivable, Allowance For Credit Losses [Line Items]	'	'	'	'
Balance beginning of period	81,845	112,705	107,137	114,468
Provision for loan losses	3,000	15,500	62,500	48,500
Charge-offs:	'	'	'	'
Total loans charged-off	5,709	22,234	93,866	59,093
Recoveries	'	'	'	'
Total recoveries	1,236	1,671	4,601	3,767
Net charge-offs	4,473	20,563	89,265	55,326
Balance end of period	80,372	107,642	80,372	107,642
Loans Receivable | Commercial (Secured By Real Estate)	'	'	'	'
Financing Receivable, Allowance For Credit Losses [Line Items]	'	'	'	'
Balance beginning of period	'	'	27,847	31,644
Provision for loan losses	'	'	28,854	11,351
Charge-offs:	'	'	'	'
Total loans charged-off	1,928	8,445	34,122	16,791
Recoveries	'	'	'	'
Total recoveries	71	271	1,556	571
Balance end of period	24,135	26,775	24,135	26,775
Loans Receivable | Commercial & industrial	'	'	'	'
Financing Receivable, Allowance For Credit Losses [Line Items]	'	'	'	'
Balance beginning of period	'	'	5,537	5,681
Provision for loan losses	'	'	19,608	362
Charge-offs:	'	'	'	'
Total loans charged-off	826	343	18,581	1,987
Recoveries	'	'	'	'
Total recoveries	690	602	1,368	802
Balance end of period	7,932	4,858	7,932	4,858
Loans Receivable | Commercial construction	'	'	'	'
Financing Receivable, Allowance For Credit Losses [Line Items]	'	'	'	'
Balance beginning of period	'	'	8,389	6,097
Provision for loan losses	'	'	1,853	6,101
Charge-offs:	'	'	'	'
Total loans charged-off	134	3,198	6,484	3,650
Recoveries	'	'	'	'
Total recoveries	1	8	60	38
Balance end of period	3,818	8,586	3,818	8,586
Loans Receivable | Residential mortgage	'	'	'	'
Financing Receivable, Allowance For Credit Losses [Line Items]	'	'	'	'
Balance beginning of period	'	'	26,642	29,076
Provision for loan losses	'	'	3,791	11,163
Charge-offs:	'	'	'	'
Total loans charged-off	1,306	3,575	10,380	13,356
Recoveries	'	'	'	'
Total recoveries	231	48	649	592
Balance end of period	20,702	27,475	20,702	27,475
Loans Receivable | Residential construction	'	'	'	'
Financing Receivable, Allowance For Credit Losses [Line Items]	'	'	'	'
Balance beginning of period	'	'	26,662	30,379
Provision for loan losses	'	'	10,231	18,233
Charge-offs:	'	'	'	'
Total loans charged-off	1,096	6,231	22,608	21,706
Recoveries	'	'	'	'
Total recoveries	24	555	57	1,153
Balance end of period	14,342	28,059	14,342	28,059
Loans Receivable | Consumer installment	'	'	'	'
Financing Receivable, Allowance For Credit Losses [Line Items]	'	'	'	'
Balance beginning of period	'	'	2,747	2,124
Provision for loan losses	'	'	450	1,738
Charge-offs:	'	'	'	'
Total loans charged-off	419	442	1,691	1,603
Recoveries	'	'	'	'
Total recoveries	219	187	911	611
Balance end of period	$2,417	$2,870	$2,417	$2,870

Loans_and_Allowance_for_Loan_L4

Loans and Allowance for Loan Losses - Summary of net charge offs of assets sold in bulk sale transaction (Details 2) (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013
Financing Receivable, Impaired [Line Items]	'
Recorded Investment	$130,914
Net Sales Proceeds	77,458
Net Charge-offs	-53,456
Loans considered impaired	'
Financing Receivable, Impaired [Line Items]	'
Recorded Investment	96,829
Net Sales Proceeds	56,298
Net Charge-offs	-40,531
Loans not considered impaired	'
Financing Receivable, Impaired [Line Items]	'
Recorded Investment	25,687
Net Sales Proceeds	15,227
Net Charge-offs	-10,460
Foreclosed properties	'
Financing Receivable, Impaired [Line Items]	'
Recorded Investment	8,398
Net Sales Proceeds	5,933
Net Charge-offs	($2,465)

Loans_and_Allowance_for_Loan_L5

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 3) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012
Allowance for loan losses:	'	'	'	'	'
Balance beginning of period	'	'	$107,137	'	'
Charge-offs	'	'	-53,456	'	'
Balance end of period	80,372	107,642	80,372	107,642	'
Ending allowance attributable to loans:	'	'	'	'	'
Total ending allowance balance	80,372	107,642	80,372	107,642	'
Loans:	'	'	'	'	'
Total loans	4,267,067	4,137,845	4,267,067	4,137,845	4,175,008
Loans Receivable	'	'	'	'	'
Allowance for loan losses:	'	'	'	'	'
Balance beginning of period	81,845	112,705	107,137	114,468	'
Charge-offs	-5,709	-22,234	-93,866	-59,093	'
Recoveries	1,236	1,671	4,601	3,767	'
Provision	3,000	15,500	62,500	48,500	'
Balance end of period	80,372	107,642	80,372	107,642	'
Ending allowance attributable to loans:	'	'	'	'	'
Individually evaluated for impairment	5,352	12,853	5,352	12,853	11,644
Collectively evaluated for impairment	75,020	94,789	75,020	94,789	95,493
Total ending allowance balance	80,372	107,642	80,372	107,642	'
Loans:	'	'	'	'	'
Individually evaluated for impairment	105,341	268,555	105,341	268,555	252,810
Collectively evaluated for impairment	4,161,726	3,869,290	4,161,726	3,869,290	3,922,198
Total loans	4,267,067	4,137,845	4,267,067	4,137,845	4,175,008
Loans Receivable | Commercial (secured by real estate)	'	'	'	'	'
Allowance for loan losses:	'	'	'	'	'
Balance beginning of period	'	'	27,847	31,644	'
Charge-offs	-1,928	-8,445	-34,122	-16,791	'
Recoveries	71	271	1,556	571	'
Provision	'	'	28,854	11,351	'
Balance end of period	24,135	26,775	24,135	26,775	'
Ending allowance attributable to loans:	'	'	'	'	'
Individually evaluated for impairment	1,975	6,692	1,975	6,692	6,106
Collectively evaluated for impairment	22,160	20,083	22,160	20,083	21,741
Total ending allowance balance	24,135	26,775	24,135	26,775	'
Loans:	'	'	'	'	'
Individually evaluated for impairment	54,463	119,023	54,463	119,023	104,409
Collectively evaluated for impairment	1,688,308	1,700,132	1,688,308	1,700,132	1,708,956
Total loans	1,742,771	1,819,155	1,742,771	1,819,155	1,813,365
Loans Receivable | Commercial & industrial	'	'	'	'	'
Allowance for loan losses:	'	'	'	'	'
Balance beginning of period	'	'	5,537	5,681	'
Charge-offs	-826	-343	-18,581	-1,987	'
Recoveries	690	602	1,368	802	'
Provision	'	'	19,608	362	'
Balance end of period	7,932	4,858	7,932	4,858	'
Ending allowance attributable to loans:	'	'	'	'	'
Individually evaluated for impairment	546	725	546	725	490
Collectively evaluated for impairment	7,386	4,133	7,386	4,133	5,047
Total ending allowance balance	7,932	4,858	7,932	4,858	'
Loans:	'	'	'	'	'
Individually evaluated for impairment	4,105	53,531	4,105	53,531	51,501
Collectively evaluated for impairment	453,309	406,466	453,309	406,466	406,745
Total loans	457,414	459,997	457,414	459,997	458,246
Loans Receivable | Commercial construction	'	'	'	'	'
Allowance for loan losses:	'	'	'	'	'
Balance beginning of period	'	'	8,389	6,097	'
Charge-offs	-134	-3,198	-6,484	-3,650	'
Recoveries	1	8	60	38	'
Provision	'	'	1,853	6,101	'
Balance end of period	3,818	8,586	3,818	8,586	'
Ending allowance attributable to loans:	'	'	'	'	'
Individually evaluated for impairment	150	2,289	150	2,289	2,239
Collectively evaluated for impairment	3,668	6,297	3,668	6,297	6,150
Total ending allowance balance	3,818	8,586	3,818	8,586	'
Loans:	'	'	'	'	'
Individually evaluated for impairment	13,478	42,249	13,478	42,249	40,168
Collectively evaluated for impairment	123,668	118,516	123,668	118,516	114,601
Total loans	137,146	160,765	137,146	160,765	154,769
Loans Receivable | Residential mortgage	'	'	'	'	'
Allowance for loan losses:	'	'	'	'	'
Balance beginning of period	'	'	26,642	29,076	'
Charge-offs	-1,306	-3,575	-10,380	-13,356	'
Recoveries	231	48	649	592	'
Provision	'	'	3,791	11,163	'
Balance end of period	20,702	27,475	20,702	27,475	'
Ending allowance attributable to loans:	'	'	'	'	'
Individually evaluated for impairment	2,008	1,856	2,008	1,856	2,165
Collectively evaluated for impairment	18,694	25,619	18,694	25,619	24,477
Total ending allowance balance	20,702	27,475	20,702	27,475	'
Loans:	'	'	'	'	'
Individually evaluated for impairment	18,970	21,678	18,970	21,678	22,247
Collectively evaluated for impairment	1,290,325	1,152,558	1,290,325	1,152,558	1,191,956
Total loans	1,309,295	1,174,236	1,309,295	1,174,236	1,214,203
Loans Receivable | Residential construction	'	'	'	'	'
Allowance for loan losses:	'	'	'	'	'
Balance beginning of period	'	'	26,662	30,379	'
Charge-offs	-1,096	-6,231	-22,608	-21,706	'
Recoveries	24	555	57	1,153	'
Provision	'	'	10,231	18,233	'
Balance end of period	14,342	28,059	14,342	28,059	'
Ending allowance attributable to loans:	'	'	'	'	'
Individually evaluated for impairment	662	1,270	662	1,270	625
Collectively evaluated for impairment	13,680	26,789	13,680	26,789	26,037
Total ending allowance balance	14,342	28,059	14,342	28,059	'
Loans:	'	'	'	'	'
Individually evaluated for impairment	14,121	31,576	14,121	31,576	34,055
Collectively evaluated for impairment	303,668	357,166	303,668	357,166	347,622
Total loans	317,789	388,742	317,789	388,742	381,677
Loans Receivable | Consumer installment	'	'	'	'	'
Allowance for loan losses:	'	'	'	'	'
Balance beginning of period	'	'	2,747	2,124	'
Charge-offs	-419	-442	-1,691	-1,603	'
Recoveries	219	187	911	611	'
Provision	'	'	450	1,738	'
Balance end of period	2,417	2,870	2,417	2,870	'
Ending allowance attributable to loans:	'	'	'	'	'
Individually evaluated for impairment	11	21	11	21	19
Collectively evaluated for impairment	2,406	2,849	2,406	2,849	2,728
Total ending allowance balance	2,417	2,870	2,417	2,870	'
Loans:	'	'	'	'	'
Individually evaluated for impairment	204	498	204	498	430
Collectively evaluated for impairment	302,448	134,452	302,448	134,452	152,318
Total loans	302,652	134,950	302,652	134,950	152,748
Loans Receivable | Unallocated	'	'	'	'	'
Allowance for loan losses:	'	'	'	'	'
Balance beginning of period	'	'	9,313	9,467	'
Charge-offs	'	'	'	'	'
Recoveries	'	'	'	'	'
Provision	'	'	-2,287	-448	'
Balance end of period	7,026	9,019	7,026	9,019	'
Ending allowance attributable to loans:	'	'	'	'	'
Individually evaluated for impairment	'	'	'	'	'
Collectively evaluated for impairment	7,026	9,019	7,026	9,019	9,313
Total ending allowance balance	7,026	9,019	7,026	9,019	'
Loans:	'	'	'	'	'
Individually evaluated for impairment	'	'	'	'	'
Collectively evaluated for impairment	'	'	'	'	'
Total loans	'	'	'	'	'

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, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'	'
Average Balance	$106,413	$275,960	$133,854	$281,307
Interest Revenue Recognized During Impairment	2,483	2,110	5,504	6,798
Cash Basis Interest Revenue Received	2,571	2,932	6,283	9,340
Commercial (Secured By Real Estate)	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'	'
Average Balance	55,303	124,681	76,060	121,223
Interest Revenue Recognized During Impairment	1,336	1,218	2,913	3,883
Cash Basis Interest Revenue Received	1,461	1,311	3,126	4,128
Commercial & industrial	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'	'
Average Balance	4,189	43,764	8,821	47,263
Interest Revenue Recognized During Impairment	114	141	333	450
Cash Basis Interest Revenue Received	104	611	803	1,921
Commercial construction	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'	'
Average Balance	13,501	43,488	14,620	40,202
Interest Revenue Recognized During Impairment	244	238	509	722
Cash Basis Interest Revenue Received	246	255	593	1,016
Commercial	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'	'
Average Balance	72,993	211,933	99,501	208,688
Interest Revenue Recognized During Impairment	1,694	1,597	3,755	5,055
Cash Basis Interest Revenue Received	1,811	2,177	4,522	7,065
Residential mortgage	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'	'
Average Balance	19,070	22,920	19,906	23,547
Interest Revenue Recognized During Impairment	436	254	882	734
Cash Basis Interest Revenue Received	446	274	862	832
Residential construction	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'	'
Average Balance	14,136	40,653	14,219	48,679
Interest Revenue Recognized During Impairment	346	252	850	989
Cash Basis Interest Revenue Received	307	473	882	1,422
Consumer installment	'	'	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'	'
Average Balance	214	454	228	393
Interest Revenue Recognized During Impairment	7	7	17	20
Cash Basis Interest Revenue Received	$7	$8	$17	$21

Loans_and_Allowance_for_Loan_L7

Loans and Allowance for Loan Losses - Loans individually evaluated for impairment by class of loans (Details 5) (USD $)	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2012
In Thousands, unless otherwise specified
Loans individually evaluated for impairment by class of loans	'	'	'
Recorded Investment	$130,914	'	'
Loans Receivable	'	'	'
Loans individually evaluated for impairment by class of loans	'	'	'
Unpaid Principal Balance, With no related allowance recorded	40,297	218,351	222,504
Unpaid Principal Balance, With an allowance recorded	75,684	100,431	100,346
Unpaid Principal Balance	115,981	318,782	322,850
Recorded Investment, With no related allowance recorded	32,839	156,962	174,113
Recorded Investment, With allowance recorded	72,502	95,848	94,442
Recorded Investment	105,341	252,810	268,555
Allowance for loan losses allocated with allowance	5,352	11,644	12,853
Amount of allowance for loan losses allocated	5,352	11,644	12,853
Loans Receivable | Commercial (secured by real estate)	'	'	'
Loans individually evaluated for impairment by class of loans	'	'	'
Unpaid Principal Balance, With no related allowance recorded	25,066	74,066	85,137
Unpaid Principal Balance, With an allowance recorded	36,183	44,395	44,590
Recorded Investment, With no related allowance recorded	20,384	62,609	77,801
Recorded Investment, With allowance recorded	34,079	41,800	41,222
Allowance for loan losses allocated with allowance	1,975	6,106	6,692
Amount of allowance for loan losses allocated	1,975	6,106	6,692
Loans Receivable | Commercial & industrial	'	'	'
Loans individually evaluated for impairment by class of loans	'	'	'
Unpaid Principal Balance, With no related allowance recorded	235	74,572	76,247
Unpaid Principal Balance, With an allowance recorded	4,002	2,170	2,321
Recorded Investment, With no related allowance recorded	235	49,572	51,247
Recorded Investment, With allowance recorded	3,870	1,929	2,284
Allowance for loan losses allocated with allowance	546	490	725
Amount of allowance for loan losses allocated	546	490	725
Loans Receivable | Commercial construction	'	'	'
Loans individually evaluated for impairment by class of loans	'	'	'
Unpaid Principal Balance, With no related allowance recorded	1,127	23,938	17,739
Unpaid Principal Balance, With an allowance recorded	12,430	23,746	26,476
Recorded Investment, With no related allowance recorded	1,127	17,305	16,656
Recorded Investment, With allowance recorded	12,351	22,863	25,593
Allowance for loan losses allocated with allowance	150	2,239	2,289
Amount of allowance for loan losses allocated	150	2,239	2,289
Loans Receivable | Commercial	'	'	'
Loans individually evaluated for impairment by class of loans	'	'	'
Unpaid Principal Balance, With no related allowance recorded	26,428	172,576	179,123
Unpaid Principal Balance, With an allowance recorded	52,615	70,311	73,387
Recorded Investment, With no related allowance recorded	21,746	129,486	145,704
Recorded Investment, With allowance recorded	50,300	66,592	69,099
Allowance for loan losses allocated with allowance	2,671	8,835	9,706
Loans Receivable | Residential mortgage	'	'	'
Loans individually evaluated for impairment by class of loans	'	'	'
Unpaid Principal Balance, With no related allowance recorded	4,768	10,336	11,091
Unpaid Principal Balance, With an allowance recorded	15,598	14,267	13,410
Recorded Investment, With no related allowance recorded	3,729	8,383	8,746
Recorded Investment, With allowance recorded	15,241	13,864	12,932
Allowance for loan losses allocated with allowance	2,008	2,165	1,856
Amount of allowance for loan losses allocated	2,008	2,165	1,856
Loans Receivable | Residential construction	'	'	'
Loans individually evaluated for impairment by class of loans	'	'	'
Unpaid Principal Balance, With no related allowance recorded	9,101	35,439	32,228
Unpaid Principal Balance, With an allowance recorded	7,257	15,412	13,105
Recorded Investment, With no related allowance recorded	7,364	19,093	19,601
Recorded Investment, With allowance recorded	6,757	14,962	11,975
Allowance for loan losses allocated with allowance	662	625	1,270
Amount of allowance for loan losses allocated	662	625	1,270
Loans Receivable | Consumer installment	'	'	'
Loans individually evaluated for impairment by class of loans	'	'	'
Unpaid Principal Balance, With no related allowance recorded	'	'	62
Unpaid Principal Balance, With an allowance recorded	214	441	444
Recorded Investment, With no related allowance recorded	'	'	62
Recorded Investment, With allowance recorded	204	430	436
Allowance for loan losses allocated with allowance	11	19	21
Amount of allowance for loan losses allocated	$11	$19	$21

Loans_and_Allowance_for_Loan_L8

Loans and Allowance for Loan Losses - Recorded investment in nonaccrual loans by loan class (Details 6) (Loans Receivable, USD $)	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2012
In Thousands, unless otherwise specified
Recorded investment in nonaccrual loans by loan class	'	'	'
Nonaccrual Loans	$26,088	$109,894	$115,001
Balance as a percentage of unpaid principal	61.60%	69.50%	68.80%
Commercial (secured by real estate)	'	'	'
Recorded investment in nonaccrual loans by loan class	'	'	'
Nonaccrual Loans	8,015	22,148	25,896
Commercial & industrial	'	'	'
Recorded investment in nonaccrual loans by loan class	'	'	'
Nonaccrual Loans	609	31,817	32,678
Commercial construction	'	'	'
Recorded investment in nonaccrual loans by loan class	'	'	'
Nonaccrual Loans	343	23,843	18,590
Commercial	'	'	'
Recorded investment in nonaccrual loans by loan class	'	'	'
Nonaccrual Loans	8,967	77,808	77,164
Residential mortgage	'	'	'
Recorded investment in nonaccrual loans by loan class	'	'	'
Nonaccrual Loans	12,504	12,589	13,996
Residential construction	'	'	'
Recorded investment in nonaccrual loans by loan class	'	'	'
Nonaccrual Loans	4,097	18,702	22,935
Consumer installment	'	'	'
Recorded investment in nonaccrual loans by loan class	'	'	'
Nonaccrual Loans	$520	$795	$906

Loans_and_Allowance_for_Loan_L9

Loans and Allowance for Loan Losses - Aging of recorded investment in past due loans (Details 7) (USD $)	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2012
In Thousands, unless otherwise specified
Aging of the recorded investment in past due loans	'	'	'
Total loans	$4,267,067	$4,175,008	$4,137,845
Loans Receivable	'	'	'
Aging of the recorded investment in past due loans	'	'	'
Loans Past Due, 30 - 59 Days	16,212	27,732	24,465
Loans Past Due, 60 - 89 Days	5,072	8,266	13,721
Loans Past Due, Greater than 90 Days Past Due	8,482	23,129	32,641
Loans, Total Past Due	29,766	59,127	70,827
Loans Not Past Due	4,237,301	4,115,881	4,067,018
Total loans	4,267,067	4,175,008	4,137,845
Loans Receivable | Commercial (secured by real estate)	'	'	'
Aging of the recorded investment in past due loans	'	'	'
Loans Past Due, 30 - 59 Days	2,026	8,106	5,395
Loans Past Due, 60 - 89 Days	1,283	3,232	5,210
Loans Past Due, Greater than 90 Days Past Due	2,429	7,476	11,103
Loans, Total Past Due	5,738	18,814	21,708
Loans Not Past Due	1,737,033	1,794,551	1,797,447
Total loans	1,742,771	1,813,365	1,819,155
Loans Receivable | Commercial & industrial	'	'	'
Aging of the recorded investment in past due loans	'	'	'
Loans Past Due, 30 - 59 Days	763	1,565	1,499
Loans Past Due, 60 - 89 Days	191	429	295
Loans Past Due, Greater than 90 Days Past Due	93	867	696
Loans, Total Past Due	1,047	2,861	2,490
Loans Not Past Due	456,367	455,385	457,507
Total loans	457,414	458,246	459,997
Loans Receivable | Commercial construction	'	'	'
Aging of the recorded investment in past due loans	'	'	'
Loans Past Due, 30 - 59 Days	16	2,216	213
Loans Past Due, 60 - 89 Days	'	'	880
Loans Past Due, Greater than 90 Days Past Due	235	4,490	3,838
Loans, Total Past Due	251	6,706	4,931
Loans Not Past Due	136,895	148,063	155,834
Total loans	137,146	154,769	160,765
Loans Receivable | Commercial	'	'	'
Aging of the recorded investment in past due loans	'	'	'
Loans Past Due, 30 - 59 Days	2,805	11,887	7,107
Loans Past Due, 60 - 89 Days	1,474	3,661	6,385
Loans Past Due, Greater than 90 Days Past Due	2,757	12,833	15,637
Loans, Total Past Due	7,036	28,381	29,129
Loans Not Past Due	2,330,295	2,397,999	2,410,788
Total loans	2,337,331	2,426,380	2,439,917
Loans Receivable | Residential mortgage	'	'	'
Aging of the recorded investment in past due loans	'	'	'
Loans Past Due, 30 - 59 Days	8,849	12,292	11,771
Loans Past Due, 60 - 89 Days	3,077	2,426	4,798
Loans Past Due, Greater than 90 Days Past Due	4,652	4,848	5,556
Loans, Total Past Due	16,578	19,566	22,125
Loans Not Past Due	1,292,717	1,194,637	1,152,111
Total loans	1,309,295	1,214,203	1,174,236
Loans Receivable | Residential construction	'	'	'
Aging of the recorded investment in past due loans	'	'	'
Loans Past Due, 30 - 59 Days	3,705	2,233	4,318
Loans Past Due, 60 - 89 Days	418	1,934	2,319
Loans Past Due, Greater than 90 Days Past Due	924	5,159	11,054
Loans, Total Past Due	5,047	9,326	17,691
Loans Not Past Due	312,742	372,351	371,051
Total loans	317,789	381,677	388,742
Loans Receivable | Consumer installment	'	'	'
Aging of the recorded investment in past due loans	'	'	'
Loans Past Due, 30 - 59 Days	853	1,320	1,269
Loans Past Due, 60 - 89 Days	103	245	219
Loans Past Due, Greater than 90 Days Past Due	149	289	394
Loans, Total Past Due	1,105	1,854	1,882
Loans Not Past Due	301,547	150,894	133,068
Total loans	$302,652	$152,748	$134,950

Recovered_Sheet1

Loans and Allowance for Loan Losses - TDRs and pre and post-modification recorded investment (Details 8) (Loans Receivable, USD $)	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2012
In Thousands, unless otherwise specified	Contract	Contract	Contract
Financing Receivable, Modifications [Line Items]	'	'	'
Number of Contracts	334	388	393
Pre-Modification Outstanding Recorded Investment	$95,524	$172,727	$177,967
Post-Modification Outstanding Recorded Investment	87,330	160,763	166,332
Residential mortgage	'	'	'
Financing Receivable, Modifications [Line Items]	'	'	'
Number of Contracts	120	117	114
Pre-Modification Outstanding Recorded Investment	19,032	20,323	18,226
Post-Modification Outstanding Recorded Investment	17,929	19,296	17,487
Residential construction	'	'	'
Financing Receivable, Modifications [Line Items]	'	'	'
Number of Contracts	55	67	73
Pre-Modification Outstanding Recorded Investment	12,360	25,822	28,629
Post-Modification Outstanding Recorded Investment	10,290	23,786	24,772
Consumer installment	'	'	'
Financing Receivable, Modifications [Line Items]	'	'	'
Number of Contracts	36	51	50
Pre-Modification Outstanding Recorded Investment	214	1,292	1,371
Post-Modification Outstanding Recorded Investment	204	1,282	1,363
Commercial	'	'	'
Financing Receivable, Modifications [Line Items]	'	'	'
Number of Contracts	123	153	156
Pre-Modification Outstanding Recorded Investment	63,918	125,290	129,741
Post-Modification Outstanding Recorded Investment	58,907	116,399	122,710
Commercial | Commercial (secured by real estate)	'	'	'
Financing Receivable, Modifications [Line Items]	'	'	'
Number of Contracts	77	96	101
Pre-Modification Outstanding Recorded Investment	47,963	80,261	84,672
Post-Modification Outstanding Recorded Investment	43,163	75,340	79,645
Commercial | Commercial & industrial	'	'	'
Financing Receivable, Modifications [Line Items]	'	'	'
Number of Contracts	34	32	30
Pre-Modification Outstanding Recorded Investment	3,051	7,492	7,237
Post-Modification Outstanding Recorded Investment	2,919	7,250	7,199
Commercial | Commercial construction	'	'	'
Financing Receivable, Modifications [Line Items]	'	'	'
Number of Contracts	12	25	25
Pre-Modification Outstanding Recorded Investment	12,904	37,537	37,832
Post-Modification Outstanding Recorded Investment	$12,825	$33,809	$35,866

Recovered_Sheet2

Loans and Allowance for Loan Losses - Loans modified under terms of TDR (Details 9) (Loans Receivable, USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
	Contract	Contract	Contract	Contract
Loans modified under the terms of a TDR	'	'	'	'
Number of Contracts	22	56	72	214
Pre-Modification Outstanding Recorded Investment	$5,008	$22,472	$19,822	$99,417
Post Modification Outstanding Recorded Investment	3,750	21,782	18,185	95,256
Number of Contracts	4	16	15	32
Recorded Investment	956	3,326	3,122	11,858
Residential mortgage	'	'	'	'
Loans modified under the terms of a TDR	'	'	'	'
Number of Contracts	16	15	29	59
Pre-Modification Outstanding Recorded Investment	2,365	2,252	5,129	12,819
Post Modification Outstanding Recorded Investment	2,207	2,102	4,827	12,487
Number of Contracts	1	2	3	6
Recorded Investment	533	47	641	447
Residential construction	'	'	'	'
Loans modified under the terms of a TDR	'	'	'	'
Number of Contracts	3	12	10	46
Pre-Modification Outstanding Recorded Investment	727	6,569	1,850	17,958
Post Modification Outstanding Recorded Investment	727	6,188	1,721	15,738
Number of Contracts	1	10	3	14
Recorded Investment	414	2,953	531	4,550
Consumer installment	'	'	'	'
Loans modified under the terms of a TDR	'	'	'	'
Number of Contracts	1	7	5	22
Pre-Modification Outstanding Recorded Investment	7	44	28	314
Post Modification Outstanding Recorded Investment	7	43	28	308
Number of Contracts	2	1	5	2
Recorded Investment	9	2	29	8
Commercial	'	'	'	'
Loans modified under the terms of a TDR	'	'	'	'
Number of Contracts	2	22	28	87
Pre-Modification Outstanding Recorded Investment	1,909	13,607	12,815	68,326
Post Modification Outstanding Recorded Investment	809	13,449	11,609	66,723
Number of Contracts	'	3	4	10
Recorded Investment	'	324	1,921	6,853
Commercial | Commercial (secured by real estate)	'	'	'	'
Loans modified under the terms of a TDR	'	'	'	'
Number of Contracts	1	13	18	47
Pre-Modification Outstanding Recorded Investment	1,841	7,914	11,932	30,828
Post Modification Outstanding Recorded Investment	741	7,836	10,832	29,305
Number of Contracts	'	3	1	6
Recorded Investment	'	324	432	2,631
Commercial | Commercial & industrial	'	'	'	'
Loans modified under the terms of a TDR	'	'	'	'
Number of Contracts	1	3	10	20
Pre-Modification Outstanding Recorded Investment	68	162	883	3,484
Post Modification Outstanding Recorded Investment	68	162	777	3,484
Number of Contracts	'	'	1	2
Recorded Investment	'	'	35	48
Commercial | Commercial construction	'	'	'	'
Loans modified under the terms of a TDR	'	'	'	'
Number of Contracts	'	6	'	20
Pre-Modification Outstanding Recorded Investment	'	5,531	'	34,014
Post Modification Outstanding Recorded Investment	'	5,451	'	33,934
Number of Contracts	'	'	2	2
Recorded Investment	'	'	$1,454	$4,174

Recovered_Sheet3

Loans and Allowance for Loan Losses - Risk category of loans by class of loans (Details 10) (USD $)	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2012
In Thousands, unless otherwise specified
Risk category of loans by class of loans	'	'	'
Total loans	$4,267,067	$4,175,008	$4,137,845
Loans Receivable	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	4,267,067	4,175,008	4,137,845
Loans Receivable | Pass	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	3,945,999	3,640,803	3,577,371
Loans Receivable | Watch	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	120,548	161,428	162,027
Loans Receivable | Performing Substandard	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	173,666	261,941	282,506
Loans Receivable | Nonaccrual Substandard	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	26,088	109,894	115,001
Loans Receivable | Doubtful / Loss	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	'	'	'
Loans Receivable | Not Rated	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	766	942	940
Loans Receivable | Residential mortgage	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	1,309,295	1,214,203	1,174,236
Loans Receivable | Residential mortgage | Pass	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	1,215,149	1,102,746	1,051,402
Loans Receivable | Residential mortgage | Watch	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	28,470	33,689	36,640
Loans Receivable | Residential mortgage | Performing Substandard	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	53,172	65,179	72,198
Loans Receivable | Residential mortgage | Nonaccrual Substandard	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	12,504	12,589	13,996
Loans Receivable | Residential mortgage | Doubtful / Loss	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	'	'	'
Loans Receivable | Residential mortgage | Not Rated	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	'	'	'
Loans Receivable | Residential construction	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	317,789	381,677	388,742
Loans Receivable | Residential construction | Pass	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	283,197	292,264	292,002
Loans Receivable | Residential construction | Watch	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	14,943	32,907	38,635
Loans Receivable | Residential construction | Performing Substandard	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	15,552	37,804	35,170
Loans Receivable | Residential construction | Nonaccrual Substandard	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	4,097	18,702	22,935
Loans Receivable | Residential construction | Doubtful / Loss	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	'	'	'
Loans Receivable | Residential construction | Not Rated	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	'	'	'
Loans Receivable | Consumer installment	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	302,652	152,748	134,950
Loans Receivable | Consumer installment | Pass	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	298,823	147,214	130,277
Loans Receivable | Consumer installment | Watch	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	1,162	1,086	881
Loans Receivable | Consumer installment | Performing Substandard	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	2,147	3,653	2,886
Loans Receivable | Consumer installment | Nonaccrual Substandard	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	520	795	906
Loans Receivable | Consumer installment | Doubtful / Loss	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	'	'	'
Loans Receivable | Consumer installment | Not Rated	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	'	'	'
Loans Receivable | Commercial	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	2,337,331	2,426,380	2,439,917
Loans Receivable | Commercial | Pass	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	2,148,830	2,098,579	2,103,690
Loans Receivable | Commercial | Watch	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	75,973	93,746	85,871
Loans Receivable | Commercial | Performing Substandard	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	102,795	155,305	172,252
Loans Receivable | Commercial | Nonaccrual Substandard	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	8,967	77,808	77,164
Loans Receivable | Commercial | Doubtful / Loss	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	'	'	'
Loans Receivable | Commercial | Not Rated	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	766	942	940
Loans Receivable | Commercial | Commercial (secured by real estate)	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	1,742,771	1,813,365	1,819,155
Loans Receivable | Commercial | Commercial (secured by real estate) | Pass	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	1,603,863	1,592,677	1,591,321
Loans Receivable | Commercial | Commercial (secured by real estate) | Watch	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	55,351	80,997	75,606
Loans Receivable | Commercial | Commercial (secured by real estate) | Performing Substandard	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	75,542	117,543	126,332
Loans Receivable | Commercial | Commercial (secured by real estate) | Nonaccrual Substandard	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	8,015	22,148	25,896
Loans Receivable | Commercial | Commercial (secured by real estate) | Doubtful / Loss	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	'	'	'
Loans Receivable | Commercial | Commercial (secured by real estate) | Not Rated	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	'	'	'
Loans Receivable | Commercial | Commercial & industrial	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	457,414	458,246	459,997
Loans Receivable | Commercial | Commercial & industrial | Pass	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	435,635	401,606	403,460
Loans Receivable | Commercial | Commercial & industrial | Watch	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	10,062	5,404	4,179
Loans Receivable | Commercial | Commercial & industrial | Performing Substandard	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	10,342	18,477	18,740
Loans Receivable | Commercial | Commercial & industrial | Nonaccrual Substandard	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	609	31,817	32,678
Loans Receivable | Commercial | Commercial & industrial | Doubtful / Loss	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	'	'	'
Loans Receivable | Commercial | Commercial & industrial | Not Rated	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	766	942	940
Loans Receivable | Commercial | Commercial construction	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	137,146	154,769	160,765
Loans Receivable | Commercial | Commercial construction | Pass	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	109,332	104,296	108,909
Loans Receivable | Commercial | Commercial construction | Watch	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	10,560	7,345	6,086
Loans Receivable | Commercial | Commercial construction | Performing Substandard	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	16,911	19,285	27,180
Loans Receivable | Commercial | Commercial construction | Nonaccrual Substandard	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	343	23,843	18,590
Loans Receivable | Commercial | Commercial construction | Doubtful / Loss	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	'	'	'
Loans Receivable | Commercial | Commercial construction | Not Rated	'	'	'
Risk category of loans by class of loans	'	'	'
Total loans	'	'	'

Recovered_Sheet4

Loans and Allowance for Loan Losses (Details Textual) (USD $)	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2012
Loans and Allowance for Loan Losses (Additional Textual) [Abstract]	'	'	'
Impaired loans considered assigned for specific reserves	$6,860,000	'	'
Criteria amount for evaluation of impairment	500,000	'	'
Accruing substandard relationship	2,000,000	'	'
FHLB	'	'	'
Loans and Allowance for Loan Losses (Textual) [Abstract]	'	'	'
Pledged as collateral to secure FHLB advances	1,940,000,000	1,900,000,000	1,780,000,000
Loans and Allowance for Loan Losses (Additional Textual) [Abstract]	'	'	'
Specific reserves	4,720,000	9,500,000	10,800,000
Loans outstanding classified as troubled debt restructurings	$3,000	$689,000	$377,000

Foreclosed_Property_Major_clas

Foreclosed Property - Major classifications of foreclosed properties (Details) (USD $)	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2012
In Thousands, unless otherwise specified
Classifications of foreclosed properties	'	'	'
Total foreclosed property	$5,907	$25,218	$38,286
Less valuation allowance	-1,440	-6,954	-11,328
Foreclosed property, net	4,467	18,264	26,958
Balance as a percentage of original loan unpaid principal	41.50%	39.70%	36.40%
Commercial real estate	'	'	'
Classifications of foreclosed properties	'	'	'
Total foreclosed property	1,130	6,368	9,613
Commercial construction	'	'	'
Classifications of foreclosed properties	'	'	'
Total foreclosed property	376	2,204	3,121
Commercial	'	'	'
Classifications of foreclosed properties	'	'	'
Total foreclosed property	1,506	8,572	12,734
Residential mortgage	'	'	'
Classifications of foreclosed properties	'	'	'
Total foreclosed property	2,420	5,192	6,509
Residential construction	'	'	'
Classifications of foreclosed properties	'	'	'
Total foreclosed property	$1,981	$11,454	$19,043

Foreclosed_Property_Activity_i

Foreclosed Property - Activity in the valuation allowance for foreclosed property (Details 1) (USD $)	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
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 year	$1,440	$6,954	$11,328	$3,602	$11,872	$6,954	$18,982
Additions charged to expense	'	'	'	329	2,394	2,739	5,513
Disposals	'	'	'	-2,491	-2,938	-8,253	-13,167
Balance at end of year	$1,440	$6,954	$11,328	$1,440	$11,328	$1,440	$11,328

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, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Expenses related to foreclosed assets	'	'	'	'
Net loss on sales	$513	$350	$3,563	$174
Provision for unrealized losses	329	2,394	2,739	5,513
Operating expenses	-648	962	1,376	3,695
Total foreclosed property expense	$194	$3,706	$7,678	$9,382

Longterm_Debt_Details

Long-term Debt (Details) (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2012	Sep. 30, 2010
Long-term Debt, by Current and Noncurrent [Abstract]	'	'	'	'
Long-term debt	$129,865	$124,805	$120,285	'
2013 senior debentures	'	'	'	'
Long-term Debt, by Current and Noncurrent [Abstract]	'	'	'	'
Long-term debt	40,000	'	'	'
Issue Date	'2013	'	'	'
Stated maturity date	'2018	'	'	'
Earliest call date	'2015	'	'	'
Interest rate	6.00%	'	'	'
2012 senior debentures	'	'	'	'
Long-term Debt, by Current and Noncurrent [Abstract]	'	'	'	'
Long-term debt	35,000	35,000	'	'
Issue Date	'2012	'	'	'
Stated maturity date	'2017	'	'	'
Earliest call date	'2017	'	'	'
Interest rate	9.00%	'	'	'
Total senior debentures	'	'	'	'
Long-term Debt, by Current and Noncurrent [Abstract]	'	'	'	'
Long-term debt	75,000	35,000	'	'
2002 subordinated debentures	'	'	'	'
Long-term Debt, by Current and Noncurrent [Abstract]	'	'	'	'
Long-term debt	'	'	30,500	'
Issue Date	'2002	'	'	'
Stated maturity date	'2012	'	'	'
Earliest call date	'2012	'	'	'
Interest rate	6.75%	'	'	'
2003 subordinated debentures	'	'	'	'
Long-term Debt, by Current and Noncurrent [Abstract]	'	'	'	'
Long-term debt	'	35,000	35,000	'
Issue Date	'2003	'	'	'
Stated maturity date	'2015	'	'	'
Earliest call date	'2010	'	'	'
Interest rate	7.50%	'	'	7.50%
Total subordinated debentures	'	'	'	'
Long-term Debt, by Current and Noncurrent [Abstract]	'	'	'	'
Long-term debt	'	35,000	65,500	'
United Community Capital Trust	'	'	'	'
Long-term Debt, by Current and Noncurrent [Abstract]	'	'	'	'
Long-term debt	21,650	21,650	21,650	'
Issue Date	'1998	'	'	'
Stated maturity date	'2028	'	'	'
Earliest call date	'2008	'	'	'
Interest rate	8.13%	'	'	'
United Community Statutory Trust I	'	'	'	'
Long-term Debt, by Current and Noncurrent [Abstract]	'	'	'	'
Long-term debt	5,155	5,155	5,155	'
Issue Date	'2000	'	'	'
Stated maturity date	'2030	'	'	'
Earliest call date	'2010	'	'	'
Interest rate	10.60%	'	'	'
United Community Capital Trust II	'	'	'	'
Long-term Debt, by Current and Noncurrent [Abstract]	'	'	'	'
Long-term debt	10,309	10,309	10,309	'
Issue Date	'2000	'	'	'
Stated maturity date	'2030	'	'	'
Earliest call date	'2010	'	'	'
Interest rate	11.30%	'	'	'
Southern Bancorp Capital Trust I	'	'	'	'
Long-term Debt, by Current and Noncurrent [Abstract]	'	'	'	'
Long-term debt	4,382	4,382	4,382	'
Issue Date	'2004	'	'	'
Stated maturity date	'2034	'	'	'
Earliest call date	'2009	'	'	'
Prime + Interest rate	1.00%	'	'	'
United Community Statutory Trust II	'	'	'	'
Long-term Debt, by Current and Noncurrent [Abstract]	'	'	'	'
Long-term debt	12,131	12,077	12,059	'
Issue Date	'2008	'	'	'
Stated maturity date	'2038	'	'	'
Earliest call date	'2013	'	'	'
Interest rate	9.00%	'	'	'
United Community Statutory Trust III	'	'	'	'
Long-term Debt, by Current and Noncurrent [Abstract]	'	'	'	'
Long-term debt	1,238	1,232	1,230	'
Issue Date	'2008	'	'	'
Stated maturity date	'2038	'	'	'
Earliest call date	'2013	'	'	'
Prime + Interest rate	3.00%	'	'	'
Trust preferred securities	'	'	'	'
Long-term Debt, by Current and Noncurrent [Abstract]	'	'	'	'
Long-term debt	$54,865	$54,805	$54,785	'

Longterm_Debt_Detail_Textuals

Long-term Debt (Detail Textuals) (USD $)	9 Months Ended
In Millions, except Per Share data, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2010
2013 senior debentures	'	'
Long-term Debt, by Current and Noncurrent [Abstract]	'	'
Redemption period	13-Aug-15	'
Redemption price percentage	100.00%	'
Increased interest rate	6.00%	'
Debentures matured date	'2018	'
2012 senior debentures	'	'
Long-term Debt, by Current and Noncurrent [Abstract]	'	'
Senior Debentures date	15-Oct-17	'
Increased interest rate	9.00%	'
Debentures matured date	'2017	'
2002 subordinated debentures	'	'
Long-term Debt, by Current and Noncurrent [Abstract]	'	'
Increased interest rate	6.75%	'
Debentures matured date	'2012	'
2003 subordinated debentures	'	'
Long-term Debt, by Current and Noncurrent [Abstract]	'	'
Redemption price	$35	'
Redemption price percentage	100.00%	'
Increased interest rate	7.50%	7.50%
Debentures matured date	'2015	'
Trust preferred securities	'	'
Long-term Debt, by Current and Noncurrent [Abstract]	'	'
Common stock exercise price	$100	'

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, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]	'	'	'	'
Securities gains, net	'	'	$116	$7,047
Loan interest revenue	50,114	53,868	151,776	163,805
Other fee revenue	1,860	2,559	8,019	8,797
Tax (expense) or benefit	9,515	-135	-246,681	629
Net of tax	12,441	7,527	248,063	19,492
Reclassifications Out of Accumulated Other Comprehensive Income	'	'	'	'
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]	'	'	'	'
Net of tax	85	'	871	'
Reclassifications Out of Accumulated Other Comprehensive Income | Unrealized (losses) gains on available-for-sale securities	'	'	'	'
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]	'	'	'	'
Securities gains, net	'	'	116	'
Tax (expense) or benefit	'	'	-45	'
Net of tax	'	'	71	'
Reclassifications Out of Accumulated Other Comprehensive Income | Amortization of 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	214	'	803	'
Tax (expense) or benefit	-83	'	-310	'
Net of tax	131	'	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	'
Other fee revenue	48	'	52	'
Total before tax	58	'	902	'
Tax (expense) or benefit	-23	'	-351	'
Net of tax	35	'	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	-133	'	-399	'
Tax (expense) or benefit	52	'	155	'
Net of tax	-81	'	-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	'	-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, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Accrued dividends on preferred stock, including accretion of discounts	'	'	'	'
Total preferred stock dividends	$3,059	$3,041	$9,166	$9,103
Series A - 6% fixed	'	'	'	'
Accrued dividends on preferred stock, including accretion of discounts	'	'	'	'
Total preferred stock dividends	3	3	9	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	2,619	7,907	7,841
Series D - LIBOR plus 9.6875%, resets quarterly	'	'	'	'
Accrued dividends on preferred stock, including accretion of discounts	'	'	'	'
Total preferred stock dividends	$415	$419	$1,250	$1,253

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, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Computation of basic and diluted loss per share	'	'	'	'
Net income available to common shareholders	$12,441	$7,527	$248,063	$19,492
Weighted average shares outstanding:	'	'	'	'
Basic	59,100	57,880	58,443	57,826
Effect of dilutive securities	'	'	'	'
Convertible securities	'	'	'	'
Stock options	1	'	1	'
Warrants	101	'	'	'
Diluted	59,202	57,880	58,444	57,826
Income per common share:	'	'	'	'
Basic (in dollars per share)	$0.21	$0.13	$4.24	$0.34
Diluted (in dollars per share)	$0.21	$0.13	$4.24	$0.34

Earnings_Per_Share_Details_Tex

Earnings Per Share (Details Textual) (USD $)	9 Months Ended
	Sep. 30, 2013
Fletcher International Ltd	'
Class of Stock [Line Items]	'
Exercise of price warrants	21.25
Shares issuable upon the exercise of warrants	1,411,765
Series B - 5% fixed until December 6, 2013, 9% thereafter	'
Class of Stock [Line Items]	'
Exercise of price warrants	61.4
Shares issuable upon exercise of grants	219,909
Fixed percentage of dividend rate on preferred stock	5.00%
Future percentage of dividend rate on preferred stock	9.00%
Employees	'
Class of Stock [Line Items]	'
Shares issuable upon exercise of grants	371,449
Weighted average exercise price of stock options granted to employees	$98.54
Restricted Stock	'
Class of Stock [Line Items]	'
Vesting of restricted stock awards	1,073,259
Series A - 6% fixed	'
Class of Stock [Line Items]	'
Fixed percentage of dividend rate on preferred stock	6.00%
Series D - LIBOR plus 9.6875%, resets quarterly	'
Class of Stock [Line Items]	'
LIBOR variable percentage of dividend rate on preferred stock	9.69%

Derivatives_and_Hedging_Activi2

Derivatives and Hedging Activities - Derivatives accounted for as hedges under ASC 815 (Details) (USD $)	9 Months Ended		12 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012
Other assets	'	'	'
Derivatives accounted for as hedges under ASC 815	'	'	'
Derivatives accounted for as hedges, Interest Rate Products, Balance Sheet Location	'Other assets	'Other assets	'Other assets
Derivatives accounted for as hedges, Asset derivatives. Fair Value	$6,289	$182	$23
Derivatives not accounted for as hedges under ASC 815	'	'	'
Derivatives not accounted for as hedges, Interest Rate Products, Balance Sheet Location	'Other assets	'Other assets	'Other assets
Derivatives not accounted for as hedges, Asset derivatives, Fair Value	1,803	596	635
Other liabilities	'	'	'
Derivatives accounted for as hedges under ASC 815	'	'	'
Derivatives accounted for as hedges, Interest Rate Products, Balance Sheet Location	'Other liabilities	'Other liabilities	'Other liabilities
Derivatives accounted for as hedges, Liability derivatives, Fair Value	35,451	9,758	11,900
Derivatives not accounted for as hedges under ASC 815	'	'	'
Derivatives not accounted for as hedges, Interest Rate Products, Balance Sheet Location	'Other liabilities	'Other liabilities	'Other liabilities
Derivatives not accounted for as hedges, Liability derivatives, Fair Value	$1,818	$605	$643

Derivatives_and_Hedging_Activi3

Derivatives and Hedging Activities - Derivatives in Fair Value Hedging Relationships (Details 1) (Fair value hedging of interest rate risk, Other fee revenue, USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Fair value hedging of interest rate risk | Other fee revenue	'	'	'	'
Effect of fair value hedging derivative financial instruments on the consolidated statement of operations	'	'	'	'
Location of Gain (Loss) Recognized in Income on Derivative	'Other fee revenue	'Other fee revenue	'Other fee revenue	'Other fee revenue
Amount of Gain (Loss) Recognized in Income on Derivative	($2,740)	$922	($15,796)	$1,745
Amount of Gain (Loss) Recognized in Income on Hedged Item	$2,778	($156)	$16,037	($1,168)

Derivatives_and_Hedging_Activi4

Derivatives and Hedging Activities - Derivatives in Cash Flow Hedging Relationships (Details 2) (Cash flow hedging, USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Effect of cash flow hedging derivative financial instruments on other comprehensive income	'	'	'	'
Gain (Loss) Reclassified from Accumulated Other Comprehensive Income into Income (Effective Portion)	$58	$763	$904	$3,077
Interest revenue	'	'	'	'
Effect of cash flow hedging derivative financial instruments on other comprehensive income	'	'	'	'
Location of Gain (Loss) Reclassified from Accumulated Other Comprehensive Income into Income	'Interest revenue	'Interest revenue	'Interest revenue	'Interest revenue
Gain (Loss) Reclassified from Accumulated Other Comprehensive Income into Income (Effective Portion)	10	649	851	2,839
Other fee revenue	'	'	'	'
Effect of cash flow hedging derivative financial instruments on other comprehensive income	'	'	'	'
Location of Gain (Loss) Reclassified from Accumulated Other Comprehensive Income into Income	'Other fee revenue	'Other fee revenue	'Other fee revenue	'Other fee revenue
Gain (Loss) Reclassified from Accumulated Other Comprehensive Income into Income (Effective Portion)	48	114	53	238
Gain (Loss) Recognized in Income on Derivative	-33	'	46	'
Interest rate products	'	'	'	'
Effect of cash flow hedging derivative financial instruments on other comprehensive income	'	'	'	'
Amount of Gain (Loss) Recognized in Other Comprehensive Income on Derivative (Effective Portion)	($3,507)	($3,943)	$8,595	($8,798)

Derivatives_and_Hedging_Activi5

Derivatives and Hedging Activities - Other derivatives not accounted for as hedges (Details 3) (Derivatives not accounted for hedges, Other fee revenue, USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Derivatives not accounted for hedges | Other fee revenue	'	'	'	'
Derivative Instruments, Gain (Loss) [Line Items]	'	'	'	'
Location of Gain (Loss) Recognized in Income on Derivative	'Other fee revenue	'Other fee revenue	'Other fee revenue	'Other fee revenue
Amount of Gain (Loss) Recognized in Income on Customer Derivatives	$442	$278	$1,182	$346

Derivatives_and_Hedging_Activi6

Derivatives and Hedging Activities (Details Textual) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012
	Contract	Contract	Contract	Contract	Contract
Credit risk	'	'	'	'	'
Derivatives and Hedging Activities (Textual) [Abstract]	'	'	'	'	'
Collateral pledged toward derivatives	$25,600,000	'	$25,600,000	'	'
Fair value hedging of interest rate risk	'	'	'	'	'
Derivatives and Hedging Activities (Textual) [Abstract]	'	'	'	'	'
Number of derivative contracts outstanding	27	9	27	9	'
Derivative instruments outstanding	8	'	8	'	'
Recognized net gain (loss) related to ineffectiveness of the fair value hedging relationships	38,000	766,000	241,000	577,000	'
Net reduction of interest expense	516,000	'	811,000	'	'
Remaining number of derivative held	19	'	19	'	'
Derivatives and Hedging Activities (Additional Textual) [Abstract]	'	'	'	'	'
Aggregate notional amount designated as fair value hedges of interest rate risk	387,000,000	122,000,000	387,000,000	122,000,000	'
Aggregate notional amount designated as fair value hedges of interest rate risk on outstanding swap	86,000,000	'	86,000,000	'	'
Cash flow hedging	'	'	'	'	'
Derivatives and Hedging Activities (Textual) [Abstract]	'	'	'	'	'
Number of derivative contracts outstanding	3	2	3	2	3
Recognized net gain (loss) related to ineffectiveness of the fair value hedging relationships	'	'	33,000	'	'
Deferred gains on terminated cash flow hedging	48,000	114,000	53,000	238,000	'
Increase to deposit interest expense	'	'	2,240,000	'	'
Derivatives and Hedging Activities (Additional Textual) [Abstract]	'	'	'	'	'
Aggregate notional amount designated as fair value hedges of interest rate risk	375,000,000	200,000,000	375,000,000	200,000,000	200,000,000
Total notional amount designated as cash flow hedges	200,000,000	'	200,000,000	'	'
Interest expense | Fair value hedging of interest rate risk	'	'	'	'	'
Derivatives and Hedging Activities (Textual) [Abstract]	'	'	'	'	'
Net reduction of interest expense	$2,470,000	$745,000	$4,730,000	$1,570,000	'

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, 2013
Stock Options	'
Shares	'
Outstanding at December 31, 2012	482,528
Granted	5,000
Forfeited	-935
Expired	-115,144
Outstanding at September 30, 2013	371,449
Exercisable at September 30, 2013	361,249
Weighted-Average Exercise Price	'
Outstanding at December 31, 2012	$97.73
Granted	$15.09
Forfeited	$30.23
Expired	$92.09
Outstanding at September 30, 2013	$98.54
Exercisable at September 30, 2013	$100.95
Weighted-Average Remaining Contractual Term (Years), Outstanding	'3 years 4 months 24 days
Weighted-Average Remaining Contractual Term (Years), Exercisable	'3 years 2 months 12 days
Aggregate Intrinsic Value, Outstanding	$38
Aggregate Intrinsic Value, Exercisable	$19

StockBased_Compensation_Detail

Stock-Based Compensation (Details 1)	9 Months Ended
	Sep. 30, 2013
Disclosure Of Compensation Related Costs, Share-Based Payments [Abstract]	'
Expected volatility	30.00%
Expected dividend yield	0.00%
Expected life (in years)	'6 years 3 months
Risk-free rate	2.01%

StockBased_Compensation_Detail1

Stock-Based Compensation (Details 2) (Restricted Stock and Restricted Stock Unit, USD $)	9 Months Ended
	Sep. 30, 2013
Restricted Stock and Restricted Stock Unit	'
Shares	'
Outstanding at December 31, 2012	485,584
Granted	795,833
Excercised	-190,366
Cancelled	-17,792
Outstanding at September 30, 2013	1,073,259
Vested at September 30, 2013	22,462
Weighted-Average Grant-Date Fair Value	'
Outstanding at December 31, 2012	$10.72
Granted	$14.69
Excercised	$13.32
Cancelled	$9.30
Outstanding at September 30, 2013	$13.23
Vested at September 30, 2013	$10.11

StockBased_Compensation_Detail2

Stock-Based Compensation (Details textual) (USD $)	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'
Additional award granted under plan	537,000	'
Vesting period	'4 years	'
Exercisable period	'10 years	'
Unrecognized compensation cost	$12,400,000	'
Recognition period for unrecognized compensation cost related	'3 years 8 months 12 days	'
Aggregate grant date fair value	2,400,000	'
Stock Options	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'
Reduction of compensation expenses due to reversal of recognized expense on grants	56,000	'
Compensation expense	'	190,000
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	2,010,000	1,180,000
Total intrinsic value	$16,100,000	'
Other operating expense for restricted stock units granted	$118,000	'

Common_and_Preferred_Stock_Iss1

Common and Preferred Stock Issued / Common Stock Issuable (Details Textual) (USD $)	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
Common Stock Issued and Issuable and Preferred Stock Issued [Abstract]	'	'
Discount rate to purchase shares of common stock	5.00%	'
Number of shares issued	49,830	87,086
Amount of shares issued	$582,000	$702,000
Number of shares issuable under the deferred compensation plan	242,262	129,270

Income_Taxes_Details_Textual

Income Taxes (Details Textual) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Jun. 30, 2013	Dec. 31, 2012
Income Tax Disclosure [Line Items]	'	'	'	'	'	'
Corporate income tax rate	'	'	6.90%	'	'	'
Income tax expense (benefit)	$9,515,000	($135,000)	($246,681,000)	$629,000	'	'
Income tax effective tax rate	38.00%	'	'	'	'	'
Partial impairment charge on net deferred tax asset	1,000,000	'	1,000,000	'	'	'
Offsetting amount for impairment charges established in reserve for uncertain tax position	400,000	'	400,000	'	'	'
Valuation allowance on deferred tax assets	4,610,000	272,000,000	4,610,000	272,000,000	'	270,000,000
Reversal of the valuation allowance	'	'	'	'	272,000,000	'
Period for cumulative loss position	'	'	'3 years	'	'	'
Net deferred tax asset realized based upon future taxable income	'	'	270,000,000	'	'	'
Deferred tax assets not related to net operating losses or credits	47,700,000	'	47,700,000	'	'	'
Remaining deferred tax assets relate to federal net operating losses	190,000,000	'	190,000,000	'	'	'
Deferred tax assets relate to state net operating losses	26,000,000	'	26,000,000	'	'	'
Federal alternative minimum tax credits	3,000,000	'	3,000,000	'	'	'
Other federal and state tax credits	7,390,000	'	7,390,000	'	'	'
Unrecognized income tax benefits	$4,450,000	$5,610,000	$4,450,000	$5,610,000	'	$5,070,000
Fiscal Year 2014	'	'	'	'	'	'
Income Tax Disclosure [Line Items]	'	'	'	'	'	'
Corporate income tax rate	'	'	6.00%	'	'	'
Fiscal Year 2015	'	'	'	'	'	'
Income Tax Disclosure [Line Items]	'	'	'	'	'	'
Corporate income tax rate	'	'	5.00%	'	'	'

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, 2013	Dec. 31, 2012	Sep. 30, 2012
In Thousands, unless otherwise specified
Level 1	'	'	'
Assets:	'	'	'
Assets, fair value	$3,203	$3,101	$3,072
Liabilities:	'	'	'
Liabilities, fair value	3,203	3,101	3,072
Level 1 | Deferred compensation plan liability	'	'	'
Liabilities:	'	'	'
Liabilities, fair value	3,203	3,101	3,072
Level 1 | Brokered certificates of deposit	'	'	'
Liabilities:	'	'	'
Liabilities, fair value	'	'	'
Level 1 | Derivative financial instruments	'	'	'
Assets:	'	'	'
Assets, fair value	'	'	'
Liabilities:	'	'	'
Liabilities, 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	3,203	3,101	3,072
Level 2	'	'	'
Assets:	'	'	'
Assets, fair value	1,971,166	1,834,901	1,762,422
Liabilities:	'	'	'
Liabilities, fair value	310,551	167,184	132,574
Level 2 | Deferred compensation plan liability	'	'	'
Liabilities:	'	'	'
Liabilities, fair value	'	'	'
Level 2 | Brokered certificates of deposit	'	'	'
Liabilities:	'	'	'
Liabilities, fair value	273,282	154,641	122,211
Level 2 | Derivative financial instruments	'	'	'
Assets:	'	'	'
Assets, fair value	8,092	658	778
Liabilities:	'	'	'
Liabilities, fair value	37,269	12,543	10,363
Level 2 | State and political subdivisions	'	'	'
Assets:	'	'	'
Assets, fair value	23,524	29,052	28,878
Level 2 | Mortgage-backed securities	'	'	'
Assets:	'	'	'
Assets, fair value	1,383,317	1,428,502	1,382,940
Level 2 | Corporate bonds	'	'	'
Assets:	'	'	'
Assets, fair value	246,601	163,312	142,802
Level 2 | Asset-backed securities	'	'	'
Assets:	'	'	'
Assets, fair value	307,238	210,556	204,429
Level 2 | Other	'	'	'
Assets:	'	'	'
Assets, fair value	2,394	2,821	2,595
Level 2 | Deferred compensation plan assets	'	'	'
Assets:	'	'	'
Assets, fair value	'	'	'
Level 3	'	'	'
Assets:	'	'	'
Assets, fair value	350	350	350
Liabilities:	'	'	'
Liabilities, 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	'	'	'
Assets:	'	'	'
Assets, fair value	'	'	'
Liabilities:	'	'	'
Liabilities, 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	350	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	'	'	'
Total	'	'	'
Assets:	'	'	'
Assets, fair value	1,974,719	1,838,352	1,765,844
Liabilities:	'	'	'
Liabilities, fair value	313,754	170,285	135,646
Total | Deferred compensation plan liability	'	'	'
Liabilities:	'	'	'
Liabilities, fair value	3,203	3,101	3,072
Total | Brokered certificates of deposit	'	'	'
Liabilities:	'	'	'
Liabilities, fair value	273,282	154,641	122,211
Total | Derivative financial instruments	'	'	'
Assets:	'	'	'
Assets, fair value	8,092	658	778
Liabilities:	'	'	'
Liabilities, fair value	37,269	12,543	10,363
Total | State and political subdivisions	'	'	'
Assets:	'	'	'
Assets, fair value	23,524	29,052	28,878
Total | Mortgage-backed securities	'	'	'
Assets:	'	'	'
Assets, fair value	1,383,317	1,428,502	1,382,940
Total | Corporate bonds	'	'	'
Assets:	'	'	'
Assets, fair value	246,951	163,662	143,152
Total | Asset-backed securities	'	'	'
Assets:	'	'	'
Assets, fair value	307,238	210,556	204,429
Total | Other	'	'	'
Assets:	'	'	'
Assets, fair value	2,394	2,821	2,595
Total | Deferred compensation plan assets	'	'	'
Assets:	'	'	'
Assets, fair value	$3,203	$3,101	$3,072

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, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Assets measured at fair value on recurring basis using significant unobservable inputs	'	'	'	'
Balance at beginning of period	$350	$350	$350	$350
Amounts included in earnings	'	'	'	'
Paydowns	'	'	'	'
Balance at end of period	$350	$350	$350	$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, 2013	Dec. 31, 2012	Sep. 30, 2012
In Thousands, unless otherwise specified
Level 1	'	'	'
Presentation of United's assets and liabilities measured at fair value on nonrecurring basis	'	'	'
Loans	'	'	'
Foreclosed properties	'	'	'
Total assets	'	'	'
Level 2	'	'	'
Presentation of United's assets and liabilities measured at fair value on nonrecurring basis	'	'	'
Loans	'	'	'
Foreclosed properties	'	'	'
Total assets	'	'	'
Level 3	'	'	'
Presentation of United's assets and liabilities measured at fair value on nonrecurring basis	'	'	'
Loans	76,393	165,751	172,909
Foreclosed properties	3,898	14,788	20,369
Total assets	80,291	180,539	193,278
Total	'	'	'
Presentation of United's assets and liabilities measured at fair value on nonrecurring basis	'	'	'
Loans	76,393	165,751	172,909
Foreclosed properties	3,898	14,788	20,369
Total assets	$80,291	$180,539	$193,278

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, 2013	Dec. 31, 2012	Sep. 30, 2012
In Thousands, unless otherwise specified
Assets:	'	'	'
Securities held to maturity	$214,651	$261,131	$281,336
Loans, net	4,186,695	4,067,871	4,030,203
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	214,651	261,131	281,336
Loans, net	'	'	'
Mortgage loans held for sale	11,979	29,693	31,350
Liabilities:	'	'	'
Deposits	6,117,769	5,988,743	5,848,540
Federal Home Loan Bank advances	125	40,125	50,125
Long-term debt	'	'	'
Level 3	'	'	'
Assets:	'	'	'
Securities held to maturity	'	'	'
Loans, net	4,095,666	3,957,669	3,954,607
Mortgage loans held for sale	'	'	'
Liabilities:	'	'	'
Deposits	'	'	'
Federal Home Loan Bank advances	'	'	'
Long-term debt	129,197	118,626	113,624
Total	'	'	'
Assets:	'	'	'
Securities held to maturity	214,651	261,131	281,336
Loans, net	4,095,666	3,957,669	3,954,607
Mortgage loans held for sale	11,979	29,693	31,350
Liabilities:	'	'	'
Deposits	6,117,769	5,988,743	5,848,540
Federal Home Loan Bank advances	125	40,125	50,125
Long-term debt	129,197	118,626	113,624
Carrying Amount	'	'	'
Assets:	'	'	'
Securities held to maturity	205,613	244,184	262,648
Loans, net	4,186,695	4,067,871	4,030,203
Mortgage loans held for sale	11,987	28,821	30,571
Liabilities:	'	'	'
Deposits	6,112,907	5,952,140	5,822,699
Federal Home Loan Bank advances	125	40,125	50,125
Long-term debt	$129,865	$124,805	$120,285

Assets_and_Liabilities_Measure6

Assets and Liabilities Measured at Fair Value (Details Textual) (USD $)	9 Months Ended	12 Months Ended		9 Months Ended
	Sep. 30, 2013	Dec. 31, 2010	Sep. 30, 2013	Sep. 30, 2013	Sep. 30, 2013
		First Investment	First Investment	Second Investment	Level 3
					Security
Fair Value (Textual) [Abstract]	'	'	'	'	'
Number of securities	'	'	'	'	2
Par value of investment	'	'	$1,000,000	$1,000,000	'
Written down value of investment	'	50,000	'	'	'
Impairment charges of investment	'	950,000	'	'	'
Negative mark to fair value	'	'	'	$700,000	'
Fair Value (Additional Textual) [Abstract]	'	'	'	'	'
Maximum remaining maturity of financial instruments having no defined maturity	'180 days	'	'	'	'
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%	'	'	'	'

Commitments_and_Contingencies_1

Commitments and Contingencies - Contractual amount of off-balance sheet instruments (Details) (USD $)	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2012
In Thousands, unless otherwise specified
Commitments to extend credit	'	'	'
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]	'	'	'
Contractual amount of off-balance sheet instruments	$677,891	$313,798	$483,844
Letters of credit	'	'	'
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]	'	'	'
Contractual amount of off-balance sheet instruments	$9,818	$13,683	$13,416