BNC Bancorp (BNNC) 10-K 13 Mar 14 2013 FY Annual report Financial data

Document_and_Entity_Informatio

Document and Entity Information (USD $)	12 Months Ended
In Millions, except Share data, unless otherwise specified	Dec. 31, 2013	Mar. 10, 2014	Jun. 30, 2013
Document and entity [Abstract]	'	'	'
Entity Registrant Name	'BNC Bancorp	'	'
Entity Central Index Key	'0001210227	'	'
Current Fiscal Year End Date	'--12-31	'	'
Entity Filer Category	'Accelerated Filer	'	'
Document Type	'10-K	'	'
Document Period End Date	31-Dec-13	'	'
Document Fiscal Year Focus	'2013	'	'
Document Fiscal Period Focus	'FY	'	'
Amendment Flag	'false	'	'
Entity Common Stock, Shares Outstanding	'	27,324,457	'
Entity Well-known Seasoned Issuer	'No	'	'
Entity Voluntary Filers	'No	'	'
Entity Current Reporting Status	'Yes	'	'
Entity Public Float	'	'	$282.70

Consolidated_Balance_Sheets

Consolidated Balance Sheets (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Assets	'	'
Cash and due from banks	$35,474	$42,989
Interest-earning deposits in other banks	72,916	191,082
Investment securities available-for-sale, at fair value	270,417	341,539
Investment securities held-to-maturity, at amortized cost (fair value of $236,507 and $118,235 at December 31, 2013 and 2012, respectively)	247,378	114,805
Federal Home Loan Bank stock, at cost	10,720	7,604
Loans held for sale	30,899	57,414
Loans:	'	'
Covered under loss-share agreements	187,661	248,930
Not covered under loss-share agreements	2,088,856	1,786,328
Less allowance for loan losses	-32,875	-40,292
Net loans	2,243,642	1,994,966
Accrued interest receivable	12,955	11,363
Premises and equipment, net	76,126	66,615
Other real estate owned:	'	'
Covered under loss-share agreements	18,773	23,102
Not covered under loss-share agreements	28,833	28,811
FDIC indemnification asset	16,886	53,519
Investment in bank-owned life insurance	78,439	70,756
Goodwill and other intangible assets, net	34,966	32,193
Other assets	51,152	47,030
Total assets	3,229,576	3,083,788
Deposits:	'	'
Non-interest bearing demand	324,532	275,605
Interest-bearing demand	1,299,399	1,221,089
Time deposits	1,082,799	1,159,615
Total deposits	2,706,730	2,656,309
Short-term borrowings	125,592	32,382
Long-term debt	101,509	88,173
Accrued expenses and other liabilities	24,415	24,680
Total liabilities	2,958,246	2,801,544
Preferred stock, no par value, authorized 20,000,000 shares;	'	'
Series A, Fixed Rate Cumulative Perpetual Preferred Stock, $1,000 liquidation value per share, 0 and 31,260 shares issued and outstanding at December 31, 2013 and 2012, respectively	0	30,717
Series B, Mandatorily Convertible Non-Voting Preferred Stock, $10 stated value, 0 and 1,804,566 shares issued and outstanding at December 31, 2013 and 2012, respectively	0	17,161
Common Stock, Number of Shares, Par Value and Other Disclosures [Abstract]	'	'
Common stock, no par value; authorized 60,000,000 shares; 21,310,832 and 20,462,667 shares issued and outstanding at December 31, 2013 and 2012, respectively	168,616	157,541
Common stock, non-voting, no par value; authorized 20,000,000 shares; 5,992,213 and 4,187,647 shares issued and outstanding at December 31, 2013 and 2012, respectively	57,849	40,688
Retained earnings	41,559	30,708
Stock in directors rabbi trust	-3,143	-3,090
Directors deferred fees obligation	3,143	3,090
Accumulated other comprehensive income	3,306	5,429
Total shareholders' equity	271,330	282,244
Total liabilities and shareholders' equity	$3,229,576	$3,083,788

Consolidated_Balance_Sheets_Pa

Consolidated Balance Sheets (Parenthetical) (USD $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2012	Dec. 31, 2011
In Thousands, except Share data, unless otherwise specified			Series A Preferred Stock	Series A Preferred Stock	Preferred stock Series B	Preferred stock Series B	Common stock	Common stock	Non-voting common stock	Non-voting common stock
Statement of Financial Position [Abstract]	'	'	'	'	'	'	'	'	'	'
Held-to-maturity Securities, Fair Value	$236,507	$118,235	'	'	'	'	'	'	'	'
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]	'	'	'	'	'	'	'	'	'	'
Preferred Stock, Shares Authorized	20,000,000	20,000,000	'	'	'	'	'	'	'	'
Preferred Stock, Liquidation Preference Per Share	'	'	$1,000	$1,000	'	'	'	'	'	'
Preferred Stock, Shares Issued	'	'	0	31,260	0	1,804,566	'	'	'	'
Preferred Stock, Shares Outstanding	'	'	0	31,260	0	1,804,566	'	'	'	'
Preferred Stock, Par or Stated Value Per Share	'	'	'	'	$10	$10	'	'	'	'
Common Stock, Number of Shares, Par Value and Other Disclosures [Abstract]	'	'	'	'	'	'	'	'	'	'
Common Stock, No Par Value	'	'	'	'	'	'	$0	$0	$0	$0
Common Stock, Shares Authorized	'	'	'	'	'	'	60,000,000	60,000,000	20,000,000	20,000,000
Common Stock, Shares, Issued	'	'	'	'	'	'	21,310,832	20,462,667	5,992,213	4,187,647
Common Stock, Shares, Outstanding	'	'	'	'	'	'	21,310,832	20,462,667	5,992,213	4,187,647

Consolidated_Statements_of_Inc

Consolidated Statements of Income (USD $)	12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Interest Income:	'	'	'
Loans, including fees	$121,704	$98,668	$87,591
Investment securities:	'	'	'
Taxable	4,366	4,808	5,688
Tax-exempt	12,202	9,749	9,946
Interest-earning balances and other	398	290	118
Total interest income	138,670	113,515	103,343
Interest Expense:	'	'	'
Demand deposits	15,282	14,508	11,719
Time deposits	10,898	15,093	17,836
Short-term borrowings	433	338	489
Long-term debt	3,450	2,952	2,876
Total interest expense	30,063	32,891	32,920
Net Interest Income	108,607	80,624	70,423
Provision for loan losses, net	12,188	22,737	18,214
Net interest income after provision for loan losses	96,419	57,887	52,209
Non-Interest Income:	'	'	'
Mortgage fees	8,979	6,169	2,230
Service charges	4,314	3,149	3,190
Earnings on bank-owned life insurance	2,318	1,771	1,688
Gain (loss) on sale of investment securities, net	-42	3,026	1,202
Bargain purchase gain on acquisition	0	12,706	7,800
Other	7,237	6,317	4,692
Total non-interest income	22,806	33,138	20,802
Non-Interest Expense:	'	'	'
Salaries and employee benefits	52,994	42,200	31,810
Occupancy	6,547	4,965	3,859
Furniture and equipment	5,546	4,241	2,761
Data processing and supplies	3,275	2,773	2,291
Advertising and business development	2,020	1,761	1,733
Insurance, professional and other services	8,392	6,685	4,166
FDIC insurance assessments	2,766	2,166	2,433
Loan, foreclosure and other real estate owned expenses	8,949	10,944	14,072
Other	7,444	6,537	4,739
Total non-interest expense	97,933	82,272	67,864
Income before income tax expense (benefit)	21,292	8,753	5,147
Income tax expense (benefit)	4,045	-1,700	-1,783
Net Income	17,247	10,453	6,930
Less preferred stock dividends and discount accretion	1,060	2,404	2,404
Net Income Available to Common Shareholders	$16,187	$8,049	$4,526
Basic Earnings Per Common Share	$0.61	$0.48	$0.45
Diluted Earnings Per Common Share	$0.61	$0.48	$0.45
Dividends Declared and Paid Per Common Share	$0.20	$0.20	$0.20

Consolidated_Statements_of_Com

Consolidated Statements of Comprehensive Income (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Statement of Comprehensive Income [Abstract]	'	'	'
Net income	$17,247	$10,453	$6,930
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax [Abstract]	'	'	'
Unrealized holding gain (loss) on investments securities available-for-sale	-15,586	3,408	14,210
Tax effect	5,961	-1,314	-5,478
Reclassification of (gains) losses recognized in net income	42	-3,026	-1,202
Tax effect	-16	1,167	463
Amortization of unrealized gains on investment securities transferred from available-for-sale to held-to-maturity	-623	-538	-45
Tax effect	334	207	18
Net of tax amount	-9,888	-96	7,966
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax [Abstract]	'	'	'
Unrealized holding gains (losses)	2,704	-593	-5,376
Tax effect	-1,042	229	2,072
Reclassification of losses recognized in net income	9,863	7,940	5,118
Tax effect	-3,760	-3,061	-1,972
Net of tax amount	7,765	4,515	-158
Total other comprehensive income (loss)	-2,123	4,419	7,808
Total comprehensive income	$15,124	$14,872	$14,738

Consolidated_Statements_of_Sha

Consolidated Statements of Shareholders' Equity (USD $)

Total

Common stock

Non-voting common stock

Common stock warrants

Preferred stock Series A

Preferred stock Series B

Preferred stock Series B-1

Preferred stock Series C

Retained earnings

Stock in directors rabbi trust

Directors deferred fees obligation

Accumulated other comprehensive income (loss)

KeySource

KeySource

First Trust Bank

First Trust Bank

Randolph Bank and Trust

Randolph Bank and Trust

In Thousands, except Share data, unless otherwise specified

Common stock

Common stock

Common stock

Beginning Balance, Value at Dec. 31, 2010

$152,224

$86,791

$0

$2,412

$29,757

$17,161

$0

$0

$22,901

($1,729)

$1,729

($6,798)

'

'

'

'

'

'

Beginning Balance Shares at Dec. 31, 2010

'

9,053,360

0

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Net income

6,930

'

'

'

'

'

'

'

6,930

'

'

'

'

'

'

'

'

'

Directors deferred fees

0

'

'

'

'

'

'

'

'

-776

776

'

'

'

'

'

'

'

Other comprehensive income, net of tax

7,808

'

'

'

'

'

'

'

'

'

'

7,808

'

'

'

'

'

'

Common Stock Issued Pursuant To [Abstract]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Exercised (in shares)

'

6,838

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Exercise of Stock Options

52

52

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Stock-based Compensation, Shares

'

13,242

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Stock-Based Compensation, Value

373

373

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Dividend Reinvestment Plan, Shares

'

27,450

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Dividend Reinvestment Plan, Values

205

205

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Cash Dividends:

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Common Stock, Cash Dividend Per Share

-1,813

'

'

'

'

'

'

'

-1,813

'

'

'

'

'

'

'

'

'

Preferred Stock, Net of Accretion

-1,924

'

'

'

480

'

'

'

-2,404

'

'

'

'

'

'

'

'

'

Ending Balance, Value at Dec. 31, 2011

163,855

87,421

0

2,412

30,237

17,161

0

0

25,614

-2,505

2,505

1,010

'

'

'

'

'

'

Ending Balance, Shares at Dec. 31, 2011

'

9,100,890

0

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Net income

10,453

'

'

'

'

'

'

'

10,453

'

'

'

'

'

'

'

'

'

Directors deferred fees

0

'

'

'

'

'

'

'

'

-585

585

'

'

'

'

'

'

'

Other comprehensive income, net of tax

4,419

'

'

'

'

'

'

'

'

'

'

4,419

'

'

'

'

'

'

Common Stock Issued Pursuant To [Abstract]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Exercised (in shares)

'

48,092

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Exercise of Stock Options

286

286

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Stock-based Compensation, Shares

'

48,098

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Stock-Based Compensation, Value

529

529

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Current Income Tax Benefit

17

17

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Dividend Reinvestment Plan, Shares

'

29,443

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Dividend Reinvestment Plan, Values

225

225

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Shares Traded to Exercise Options, Shares

'

-19,189

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Shares Traded to Exercise Options, Values

-148

-148

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Stock Issued During Period, Shares, Acquisitions

'

'

'

'

'

'

'

'

'

'

'

'

'

1,810,267

'

3,276,101

'

'

Stock Issued During Period, Value, Acquisitions

'

'

'

'

'

'

'

'

'

'

'

'

13,942

13,942

26,177

26,177

'

'

Stock Issued During Period, Shares, Conversion of Convertible Securities

'

6,168,965

4,187,647

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Stock Issued During Period, Value, Conversion of Convertible Securities

0

27,620

40,688

'

'

'

-40,688

-27,620

'

'

'

'

'

'

'

'

'

'

Stock Issued During Period, Value, New Issues

68,308

'

'

'

'

'

40,688

27,620

'

'

'

'

'

'

'

'

'

'

Redemption of Common Stock Warrant

-940

1,472

'

-2,412

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Cash Dividends:

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Common Stock, Cash Dividend Per Share

-2,955

'

'

'

'

'

'

'

-2,955

'

'

'

'

'

'

'

'

'

Preferred Stock, Net of Accretion

-1,924

'

'

'

480

'

'

'

-2,404

'

'

'

'

'

'

'

'

'

Ending Balance, Value at Dec. 31, 2012

282,244

157,541

40,688

0

30,717

17,161

0

0

30,708

-3,090

3,090

5,429

'

'

'

'

'

'

Ending Balance, Shares at Dec. 31, 2012

'

20,462,667

4,187,647

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Net income

17,247

'

'

'

'

'

'

'

17,247

'

'

'

'

'

'

'

'

'

Directors deferred fees

0

'

'

'

'

'

'

'

'

-53

53

'

'

'

'

'

'

'

Other comprehensive income, net of tax

-2,123

'

'

'

'

'

'

'

'

'

'

-2,123

'

'

'

'

'

'

Common Stock Issued Pursuant To [Abstract]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Stock-based Compensation, Shares

'

98,334

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Stock-Based Compensation, Value

1,173

1,173

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Dividend Reinvestment Plan, Shares

'

23,197

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Dividend Reinvestment Plan, Values

260

260

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Stock Issued During Period, Shares, Acquisitions

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

726,634

Stock Issued During Period, Value, Acquisitions

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

9,642

9,642

Stock Issued During Period, Shares, Conversion of Convertible Securities

'

'

1,804,566

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Stock Issued During Period, Value, Conversion of Convertible Securities

0

'

17,161

'

'

-17,161

'

'

'

'

'

'

'

'

'

'

'

'

Redemption of Preferred Stock

-31,260

'

'

'

-31,260

'

'

'

'

'

'

'

'

'

'

'

'

'

Cash Dividends:

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Common Stock, Cash Dividend Per Share

-5,336

'

'

'

'

'

'

'

-5,336

'

'

'

'

'

'

'

'

'

Preferred Stock, Net of Accretion

-517

'

'

'

543

'

'

'

-1,060

'

'

'

'

'

'

'

'

'

Ending Balance, Value at Dec. 31, 2013

$271,330

$168,616

$57,849

$0

$0

$0

$0

$0

$41,559

($3,143)

$3,143

$3,306

'

'

'

'

'

'

Ending Balance, Shares at Dec. 31, 2013

'

21,310,832

5,992,213

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Consolidated_Statements_of_Sha1

Consolidated Statements of Shareholders' Equity (Parenthetical) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Statement of Stockholders' Equity [Abstract]	'	'	'
Common Stock, Dividends, Per Share, Cash Paid	$0.20	$0.20	$0.20

Consolidated_Statements_of_Cas

Consolidated Statements of Cash Flows (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Operating Activities	'	'	'
Net income	$17,247	$10,453	$6,930
Adjustments to reconcile net income to net cash provided by operating activities:	'	'	'
Provision for loan losses, net	12,188	22,737	18,214
Depreciation and amortization	4,615	2,987	2,309
Amortization of premiums, net	4,483	1,436	502
Amortization of intangible assets	1,176	567	416
Deferred income tax provision (benefit)	3,805	-1,910	-3,106
Accretion of fair value purchase accounting adjustments	-16,396	-8,515	-7,461
Bargain purchase gain on acquisition	0	-12,706	-7,800
Cash flow hedge expense	9,863	7,940	5,118
Stock-based compensation	1,173	529	373
Deferred compensation	333	605	1,187
Earnings on bank-owned life insurance	-2,318	-1,771	-1,688
Net loss (gain) on sale of investment securities available-for-sale	42	-3,026	-1,202
Loss on sale of premises and equipment	109	183	0
Losses on other real estate owned	3,173	6,503	9,655
Gain on sale of loans (mortgage fees)	-8,979	-6,169	-2,230
Origination of loans held for sale	-334,325	-274,925	-91,255
Proceeds from sales of loans held for sale	352,130	233,276	91,942
(Increase) decrease in accrued interest receivable	-792	1,048	755
Payments received from FDIC under loss-share agreements	34,576	60,216	21,541
(Increase) decrease in other assets	86,326	-477	-396
(Decrease) increase in accrued expenses and other liabilities	-5,516	553	-4,197
Other operating activities, net	0	0	64
Net cash provided by operating activities	162,913	39,534	39,671
Investing activities	'	'	'
Purchases of investment securities available-for-sale	-97,101	-92,713	-80,815
Purchases of investment securities held-to-maturity	-49,387	-18,693	-5,323
Proceeds from sales of investment securities available-for-sale	18,414	117,381	50,717
Proceeds from maturities and payments of investment securities available-for-sale	49,787	46,386	32,510
Proceeds from maturities and payments of investment securities held-to-maturity	1,313	0	0
(Purchase) redemption of Federal Home Loan Bank stock	-2,486	2,850	463
Net increase in loans	-99,199	-44,335	-157,659
Purchases of premises and equipment	-8,591	-12,221	-10,550
Proceeds from disposal of premises and equipment	47	283	19
Investment in bank-owned life insurance	-502	-12,081	0
Investment in other real estate owned	-2,190	-2,339	-1,035
Proceeds from sales of other real estate owned	32,805	51,353	30,433
Net cash received from acquisitions	14,207	113,466	38,648
Net cash provided by (used in) by investing activities	-142,883	149,337	-102,592
Financing activities	'	'	'
Net increase (decrease) in deposits	-208,854	-15,386	86,139
Net increase (decrease) in short-term borrowings	76,210	-46,508	6,004
Net increase (decrease) in long-term-debt	23,786	-11,587	0
Preferred stock (redeemed) issued , net	-31,260	68,308	0
Common stock issued from exercise of stock options	0	138	52
Common stock issued pursuant to dividend reinvestment plan	260	225	205
Redemption of common stock warrant	0	-940	0
Cash dividends paid, net of accretion	-5,853	-4,879	-3,737
Net cash provided by (used in) financing activities	-145,711	-10,629	88,663
Net increase (decrease) in cash and cash equivalents	-125,681	178,242	25,742
Cash and cash equivalents, beginning of period	234,071	55,829	30,087
Cash and cash equivalents, end of period	108,390	234,071	55,829
Supplemental Statement of Cash Flows Disclosure	'	'	'
Interest paid	30,786	32,113	33,095
Income taxes paid	1,692	1,549	1,101
Summary of Noncash Investing and Financing Activities	'	'	'
Transfer of loans to other real estate owned	27,105	38,569	41,028
Transfer of loans held for sale to loans	19,682	0	0
FDIC indemnification asset increase for losses, net	4,051	31,793	8,721
Transfer of investment securities from available-for-sale to held-to-maturity	$86,526	$0	$85,780

Basis_Presentation

Basis Presentation	12 Months Ended
	Dec. 31, 2013
Accounting Policies [Abstract]	'
Basis Presentation	'
	BASIS OF PRESENTATION
	Organization
	BNC Bancorp (the “Parent Company”) is a bank holding company for Bank of North Carolina (“BNC”), a wholly owned subsidiary, headquartered in High Point, North Carolina. The Parent Company also maintains four wholly-owned special-purpose subsidiary trusts that issue trust preferred securities. The information in the consolidated financial statements relates primarily to BNC. BNC is a full service commercial bank providing commercial banking services tailored to the particular banking needs of the communities it serves in North and South Carolina. BNC’s primary source of revenue is derived from loans to customers, who are predominantly individuals and small to medium size businesses in BNC’s market areas.
	The Parent Company is subject to the rules and regulations of the Federal Reserve Bank. BNC is operating under the Banking Laws of North Carolina, and is subject to the rules and regulations of the North Carolina Commissioner of Banks and the Federal Deposit Insurance Corporation (“FDIC”). Accordingly, the Parent Company and BNC are examined periodically by those regulatory authorities.
	Basis of Presentation
	The accompanying consolidated financial statements include the accounts and transactions of the Parent Company and BNC, collectively referred to herein as the “Company”. All significant intercompany transactions and balances have been eliminated in consolidation.
	Use of Estimates
	The preparation of consolidated financial statements in conformity with accounting principles generally accepted in the United States of America (“GAAP”) requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. On an ongoing basis, the Company evaluates its estimates, including those relating to the allowance for loan losses, determination of fair value of acquired assets and assumed liabilities, and valuation of goodwill and intangible assets.
	Reclassifications
	Certain amounts in the 2012 consolidated financial statements have been reclassified to conform to the 2013 presentation. The reclassifications had no effect on net income, net income available to common shareholders or shareholders' equity as previously reported.
	Business Combinations
	The Company accounts for its business combinations using the acquisition method of accounting. This method requires the use of fair values in determining the carrying values of the purchased assets and assumed liabilities, which are recorded at fair value at acquisition date, and identifiable intangible assets are recorded at fair value. Costs directly related to the business combinations are recorded as expenses as they are incurred. Fair values are subject to refinement for up to one year after the closing date of an acquisition as information relative to closing date fair values become available.
	Cash and Cash Equivalents
	For the purpose of presentation in the statements of cash flows, cash and cash equivalents include cash and due from banks and interest-earning deposits in other banks.
	Federal regulations require financial institutions to set aside a specified amount as a reserve against transaction accounts and time deposits. At December 31, 2013 and 2012, the Company’s reserve requirement was $8.4 million and $24.8 million, respectively.
	Investment Securities
	Investment securities are classified into one of three categories on the date of purchase and accounted for as follows: (1) debt securities that the Company has the positive intent and the ability to hold to maturity are classified as held-to-maturity and reported at amortized cost; (2) debt and equity securities that are bought and held principally for the purpose of selling them in the near term are classified as trading securities and reported at fair value, with unrealized gains and losses included in earnings; and (3) debt and equity securities not classified as either held-to-maturity securities or trading securities are classified as available-for-sale securities and reported at fair value, with unrealized gains and losses, net of taxes, reported as other comprehensive income.
	Premiums are amortized and discounts accreted using the interest method over the remaining terms of the related securities. Dividend and interest income are recognized when earned. Sales of investment securities are recorded at trade date, with realized gains and losses on sales determined using the specific identification method and included in non-interest income.
	Transfers of investment securities into the held-to-maturity category from the available-for-sale category are made at fair value at the date of transfer. The unrealized holding gain or loss at the date of transfer is retained in accumulated other comprehensive income and in the carrying value of the held-to-maturity securities. Such amounts are amortized over the remaining life of the security.
	Our investment securities portfolio includes residential mortgage-backed securities and collateralized mortgage obligations. As the underlying collateral of each of these securities is comprised of a large number of similar residential mortgage loans for which prepayments are probable and the timing and amount of such prepayments can be reasonably estimated, we consider estimates of future principal prepayments of these underlying residential mortgage loans in the calculation of the constant effective yield used to apply the interest method for income recognition.
	The Company evaluates each investment security in a loss position for other-than-temporary impairment (“OTTI”). The Company considers such factors as the length of time and the extent to which the market value has been below amortized cost, long term expectations and recent experience regarding principal and interest payments, intent to sell and whether it is more likely than not that the Company would be required to sell those securities before the anticipated recovery of the amortized cost basis. The credit component of an OTTI loss is recognized in earnings and the non-credit component is recognized in accumulated other comprehensive income in situations where the Company does not intend to sell the security and it is more-likely-than-not that the Company will not be required to sell the security prior to recovery.
	Federal Home Loan Bank Stock
	As a member of the Federal Home Loan Bank of Atlanta (the "FHLB"), the Company is required to maintain an investment in the stock of the FHLB based upon the amount of outstanding FHLB borrowings. This stock does not have a readily determinable fair value and is carried at cost.
	Loans and Leases
	Originated Loans and Leases
	Loans that management has the intent and ability to hold for the foreseeable future or until maturity are reported at their outstanding principal balances, adjusted for any charge-offs, unearned discounts, and unamortized fees and costs on originated loans. Interest income on loans is accrued and credited to income based upon the principal amount outstanding. The net amount of nonrefundable loan origination fees and certain direct costs associated with the lending process are deferred and amortized to interest income over the contractual lives of the loans using methods that approximate the interest method.
	The Company classifies all loans and leases past due when the payment of principal and/or interest based upon contractual terms is greater than 30 days delinquent. When commercial loans are placed on nonaccrual status as described below, a charge-off is recorded, as applicable, to decrease the carrying value of such loans to the estimated fair value of the collateral securing the loan. Consumer loans are placed on nonaccrual status at a specified delinquency date consistent with regulatory guidelines. As such, consumer loans are subject to collateral valuation and charge-off, as applicable, when they are moved to nonaccrual status. The accrual of interest income for commercial loans is discontinued when there is a clear indication that the borrower’s cash flow may not be sufficient to meet payments as they become due, while the accrual of interest income for consumer loans is discontinued when loans reach specific delinquency levels.
	Acquired Loans
	Acquired loans are recorded at their fair value at the acquisition date. Credit discounts are included in the determination of fair value; therefore, an allowance for loan losses is not recorded at the acquisition date. Loans acquired in FDIC-assisted transactions and covered under loss-share agreements are referred to as “covered loans.”
	Acquired loans are evaluated upon acquisition and classified as either purchased impaired or purchased non-impaired. Purchased impaired loans reflect credit deterioration since origination such that it is probable at acquisition that the Company will be unable to collect all contractually required payments. For purchased impaired loans, expected cash flows at the acquisition date in excess of the fair value of loans are recorded as interest income over the life of the loans using a level yield method if the timing and amount of the future cash flows is reasonably estimable. Subsequent to the acquisition date, increases in cash flows over those expected at the acquisition date are recognized prospectively as interest income. Decreases in expected cash flows after the acquisition date are recognized immediately through the provision for loan losses. For purchased non-impaired loans, the difference between the fair value and unpaid principal balance of the loan at the acquisition date is amortized or accreted to interest income over the economic life of the loans using a method that approximates the interest method.
	Covered loans acquired will be reimbursed for a substantial portion of any future losses on them under the terms of the FDIC loss-share agreements. The covered loans are reported in loans exclusive of the expected reimbursement from the FDIC. Covered loans are initially recorded at fair value at the acquisition date. The covered loans are and will be subject to the Company’s internal and external credit review and monitoring. Prospective losses incurred on covered loans are eligible for partial reimbursement by the FDIC. Subsequent decreases in the amount expected to be collected result in a provision for loan losses, an increase in the allowance for loan losses, and a proportional increase to the FDIC indemnification asset for the estimated amount to be reimbursed. Subsequent increases in the amount expected to be collected result in the reversal of any previously-recorded provision for loan losses and related allowance for loan losses and decreases to the FDIC indemnification asset, or accretion of certain fair value amounts into interest income in future periods if no provision for loan losses had been recorded.
	Loans Held for Sale
	The Company originates certain single family, residential first mortgage loans for sale on a presold basis and these loans are classified as loans held for sale. Loans held for sale are carried at the lower of cost or estimated fair value in the aggregate as determined by outstanding commitments from investors. Upon closing, these loans, together with their servicing rights, are sold to other financial institutions under prearranged terms on a best-efforts basis. Gains or losses on loan sales are recognized at the time of sale and are determined by the difference between net sales proceeds and the principal balance of the loans sold, adjusted for net deferred loan fees or costs. Loan origination and commitment fees, net of certain direct loan origination costs, are deferred as an adjustment to the carrying value of the loan until it is sold. The commitments to sell loans and the commitments to originate loans held for sale at a set interest rate, if originated, are considered derivatives under GAAP. The impact of the estimated fair value adjustment was not significant to the consolidated financial statements.
	Nonperforming Loans
	The Company considers a loan impaired, based on current information and events, if it is probable that the Company will be unable to collect the scheduled payments of principal or interest when due according to the contractual terms of the loan agreement. All impaired loans are measured based on the present value of the expected future cash flows discounted at the loan's effective interest rate, the loan's observable market price, or at the fair value of the collateral if the loan is collateral dependent.
	The Company uses several factors in determining if a loan is impaired. Internal asset classification procedures include a thorough review of significant loans and lending relationships and include the accumulation of related data. This data includes loan payment status and the borrowers' financial data, cash flows, operating income or loss, and other factors. These discounted cash flow analyses incorporate adjustments to future cash flows that reflect management’s best estimate based on a combination of historical experience and management judgment.
	Loans are generally classified as nonaccrual if they are past due as to maturity or payment of principal or interest for a period of more than ninety (90) days, unless such loans are well-secured and in the process of collection. If a loan or a portion of a loan is classified as doubtful or is partially charged off, the loan is generally classified as nonaccrual. Loans that are on a current payment status or past due less than ninety (90) days may also be classified as nonaccrual if repayment in full of principal and/or interest is in doubt.
	Loans may be returned to accrual status when all principal and interest amounts contractually due (including arrearages) are reasonably assured of repayment within an acceptable period of time and there is a sustained period of repayment performance (generally, a minimum of six months) by the borrower in accordance with the contractual terms of interest and principal.
	While a loan is classified as nonaccrual and the future collectability of the recorded loan balance is doubtful, collections of interest and principal are generally applied as a reduction to principal outstanding. When future collection of the recorded loan balance is expected, interest income may be recognized on a cash basis. In the case where a nonaccrual loan had been partially charged off, recognition of interest on a cash basis is limited to that which would have been recognized on the recorded loan balance at the contractual interest rate. Receipts in excess of that amount are recorded as recoveries to the allowance for loan losses until prior charge-offs have been fully recovered.
	Restructurings
	Modifications to a borrower’s debt agreement are considered troubled debt restructurings (“TDRs”) if a concession is granted for economic or legal reasons related to a borrower’s financial difficulties that otherwise would not be considered. TDRs are undertaken in order to improve the likelihood of recovery on the loan and may take the form of modifications made with the stated interest rate lower than the current market rate for new debt with similar risk, modifications to the terms and conditions of the loan that fall outside of normal underwriting policies and procedures, or a combination of these modifications. Modifications of covered and other acquired loans that are part of a pool accounted for as a single asset are not considered TDRs. TDRs can involve loans remaining on nonaccrual, moving to nonaccrual, or continuing on accruing status, depending on the individual facts and circumstances of the borrower.
	Allowance for Loan Losses
	The allowance for loan losses is established through a provision for loan losses charged to expense. Loans are charged-off against the allowance when management believes that the collectability of principal is unlikely. Recoveries of amounts previously charged-off are credited to the allowance. The allowance is an amount that management believes will be adequate to absorb probable losses on existing loans based on evaluations of the collectibility of loans. The evaluations take into consideration such factors as changes in the nature and volume of the loan portfolio, overall portfolio quality, historical loan losses, review of specific loans for impairment, and current economic conditions and trends that may affect the borrowers' ability to pay. Accrual of interest is discontinued on loans when management believes, after considering economic and business conditions and collection efforts and the value of the underlying collateral, that the borrowers' financial condition is such that collection is doubtful.
	In addition, various regulatory agencies, as an integral part of their examination process, periodically review BNC’s allowance for loan losses. Such agencies may require BNC to recognize adjustments to the allowance based on their judgments of information available to them at the time of their examination.
	Accounting standards require the presentation of certain disclosure information at the portfolio segment level, which represents the level at which an entity develops and documents a systematic methodology to determine its allowance for loan losses. The Company concluded that its loan and lease portfolio comprises two portfolio segments; originated loans (which include purchased non-credit impaired loans) and purchased credit impaired loans. Originated loans include both commercial loans, which include commercial real estate, commercial construction, commercial and industrial and leases, and retail loans, which include residential construction, residential mortgage and consumer and other loans. The following provides a description of the Company’s accounting policies and methodologies related to each of its portfolio segments:
	Originated Loans
	All commercial and retail loans that are originated by the Company are assigned risk grades based on an assessment of conditions that affect the borrower’s ability to meet contractual obligations under the loan agreement. This process includes reviewing borrowers’ financial information, historical payment experience, credit documentation, public information, and other information specific to each borrower. Loans with outstanding balance of $1 million or more, as well as all other loans included in such relationships, are reviewed on an annual basis. Loans with total committed exposure of $250,000 or more that are risk graded as Special Mention or worse, as well as credit relationships with total credit exposure of $500,000 or more that are risk graded Special Mention or worse, are reviewed on a quarterly basis. All other loans are reviewed at any point management becomes aware of information affecting the borrower’s ability to fulfill their obligations. The Company calculates a specific reserve for each loan that has been deemed impaired, which include commercial loans 90 days or more past due, commercial nonaccrual loans above $250,000, and commercial and retail restructurings above $250,000. The amount of the reserve is based on the present value of expected cash flows discounted at the loan’s effective interest rate, and/or the value of collateral. If foreclosure is probable or the loan is collateral dependent, impairment is measured using the fair value of the loan’s collateral, less estimated costs to sell.
	For acquired loans that are not deemed credit impaired at acquisition, credit discounts representing the principal losses expected over the life of the loan are a component of the initial fair value. Subsequent to the purchase date, the methods utilized to estimate the required allowance for loan losses for these loans is similar to originated loans, however, the Company records a provision for loan losses only when the required allowance, net of any expected reimbursement under any loss-share agreements, exceeds any remaining credit discounts. The remaining differences between the purchase price and the unpaid principal balance at the date of acquisition are recorded in interest income over the economic life of the loans.
	The Company also maintains reserves for collective impairment that reflect an estimate of losses related to non-impaired loans as of the balance sheet date, as well as impaired loans below the parameters described above for specific reserve. Embedded loss estimates are based on estimated migration rates, which are estimated based on historical experience, and current risk mix as indicated by the risk grading process described above. Embedded loss estimates may be adjusted to reflect current economic conditions and current portfolio trends including credit quality, concentrations, aging of the portfolio, and significant policy and underwriting changes.
	Purchased Credit Impaired Loans
	The allowance for loan and lease losses related to purchased credit impaired loans is based on an analysis that is performed each period to estimate the expected cash flows for each of the loan pools. To the extent that the expected cash flows of a loan pool have decreased since the acquisition date, the Company establishes an allowance for loan losses.
	Other Real Estate Owned
	Other real estate owned (“OREO”) acquired through, or in lieu of, loan foreclosure is held for sale and is initially recorded at estimated fair value less cost of disposal at the date of foreclosure, establishing a new cost basis. When property is acquired, the excess, if any, of the loan balance over estimated fair value is charged to the allowance for loan losses. Subsequent to foreclosure, valuations are periodically performed by management and the assets are carried at the lower of carrying amount or fair value less cost to sell. Revenue and expenses from operations and changes in the valuation allowance are included in loan, foreclosure and other real estate owned expenses as a component of non-interest expense.
	Certain OREO properties are subject to loss-sharing agreements with the FDIC and are labeled “covered” on the consolidated balance sheets.
	FDIC Indemnification Asset
	The FDIC indemnification asset is measured separately from the related covered assets as it is not contractually embedded in the assets and is not transferable with the assets should the Company choose to dispose of them. At acquisition date of an FDIC-assisted transaction, fair value is estimated using projected cash flows related to the loss-share agreements based on the expected reimbursements for losses and the applicable loss-sharing percentages and the estimated true-up payment at the expiration of the loss-share agreements, if applicable. These cash flows were discounted to reflect the estimated timing of the receipt of the loss-share reimbursement from the FDIC and the true-up payment to the FDIC. Cash flow projections resulting from the loss-share agreements are reviewed and updated prospectively as loss estimates related to both covered loans and covered other real estate owned change, including the existence of and amount of any required true-up payment owed to the FDIC.
	Premises and Equipment
	Premises and equipment are stated at cost less accumulated depreciation and amortization. Land is carried at cost. Depreciation and amortization are computed using the straight-line method over the estimated useful lives of the respective assets, which are 40 years for buildings and 3 to 10 years for furniture, fixtures and equipment. Leasehold improvements are amortized over the terms of the respective leases or the estimated useful lives of the improvements, whichever is shorter. Repairs and maintenance costs are charged to operations as incurred.
	Bank-Owned Life Insurance
	The Company has purchased life insurance policies on certain current and past key employees and directors where the insurance policy benefits and ownership are retained by the employer. These policies are recorded at their cash surrender value. Income from these policies and changes in the net cash surrender value are recorded in non-interest income as earnings on bank-owned life insurance. The cash value accumulation is permanently tax deferred if the policy is held to the insured person’s death and certain other conditions are met.
	Goodwill and Other Intangible Assets
	Goodwill represents the excess of the purchase price over the fair value of net assets acquired in a business combination. Goodwill is not amortized but is evaluated for impairment on an annual basis, or more frequently if an event occurs indicating that goodwill may be impaired. Any impairment of goodwill or other intangibles will be recognized as an expense in the period of impairment. The Company completes the annual goodwill impairment test as of June 30 of each year and the test indicated there was no impairment of goodwill.
	Identifiable intangible assets are acquired assets that lack physical substance but can be distinguished from goodwill because of contractual or legal rights or because the assets are capable of being sold or exchanged either on their own or in combination with a related contract, asset, or liability. The Company’s identifiable intangible assets relate to premiums on purchased core deposits and are being amortized over their estimated useful lives.
Derivatives
The Company applies hedge accounting to certain interest rate derivatives entered into for risk management purposes. To qualify for hedge accounting, a derivative must be highly effective at reducing the risk associated with the exposure being hedged. In addition, key aspects of achieving hedge accounting are documentation of hedging strategy and hedge effectiveness at the hedge inception and substantiating hedge effectiveness on an ongoing basis. A derivative must be highly effective in accomplishing the hedge objective of offsetting changes in the cash flows of the hedged item for the risk being hedged. Any ineffectiveness in the hedge relationship is recognized in earnings. The effective portion of changes in the fair value of derivatives designated in a hedge relationship and that qualify as cash flow hedges is recorded in accumulated other comprehensive income, net of tax, and is subsequently reclassified into earnings in the period that the hedged transaction affects earnings.
The Company assesses, both at the inception of the hedge and on an ongoing basis, whether derivatives used as hedging instruments are highly effective in offsetting the changes in the cash flow of the hedge items. If it is determined that a derivative is not highly effective as a hedge or ceases to be highly effective, the Company will discontinue hedge accounting prospectively.
Earnings Per Share
Basic earnings per common share is computed using the weighted average number of common shares and participating securities outstanding during the reporting period. Diluted earnings per common share is the amount of earnings available to each share of common stock during the reporting period adjusted to include the effect of potentially dilutive common shares. Potentially dilutive common shares are excluded from the computation of dilutive earnings per share in the periods in which the effect would be anti-dilutive.
Income Taxes
Deferred income taxes are recognized for the tax consequences of temporary differences between financial statement carrying amounts and the tax bases of existing assets and liabilities that will result in taxable or deductible amounts in future years. These temporary differences are multiplied by the enacted income tax rate expected to be in effect when the taxes become payable or receivable. The effect on deferred taxes of a change in tax rates is recognized in income in the period that includes the enactment date. Deferred tax assets are reduced, if necessary, by the amount of such benefits that are not expected to be realized based on available evidence.
Operating Segments
The Company’s operations are managed along two operating segments, consisting of banking operations and mortgage origination. While the chief operating decision maker uses financial information related to these segments to analyze business performance and allocate resources, the mortgage origination segment does not meet the quantitative threshold under GAAP to be considered a reportable segment. As such, these operating segments are aggregated into a single reportable operating segment in the Consolidated Financial Statements. No revenues are derived from foreign countries or from external customers that comprise more than 10% of the Company’s revenues.
Stock Compensation Plans
The Company follows the provisions of the authoritative guidance regarding share-based compensation. This guidance values share-based awards at the grant date fair value and recognizes the expense over the requisite service period.
Recently Adopted and Issued Accounting Standards
In January 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2014-04, Receivables (Topic 310): Reclassification of Residential Real Estate Collateralized Consumer Mortgage Loans upon Foreclosure to clarify that an in substance repossession or foreclosure occurs upon either the creditor obtaining legal title to the residential real estate property or the borrower conveying all interest in the residential real estate property to the creditor to satisfy that loan through completion of a deed in lieu of foreclosure or through a similar legal agreement. The amendments are effective for annual periods, and interim reporting periods within those annual periods, beginning after December 15, 2014. The amendments may be adopted using either a modified retrospective transition method or a prospective transition method and early adoption is permitted. The Company does not expect the adoption of this ASU to have a material impact on its consolidated financial statements.
In July 2013, the FASB issued ASU No. 2013-10, Derivatives and Hedging (Topic 815): Inclusion of the Fed Funds Effective Swap Rate (or Overnight Index Swap Rate) as a Benchmark Interest Rate for Hedge Accounting Purposes to provide guidance on the risks that are permitted to be hedged in a fair value or cash flow hedge. Among those risks for financial assets and financial liabilities is the risk of changes in a hedged item’s fair value or a hedged transaction’s cash flows attributable to changes in the designated benchmark interest rate (referred to as interest rate risk). The provisions were effective prospectively for qualifying new or redesignated hedging relationships entered into on or after July 17, 2013. The adoption of this ASU did not have a material impact on the Company's consolidated financial statements.
In July 2013, the FASB issued ASU No. 2013-11, Income Taxes (Topic 740): Presentation of an Unrecognized Tax Benefit When a Net Operating Loss Carryforward, a Similar Tax Loss, or a Tax Credit Carryforward Exists to provide 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 thereby reducing diversity in practice. The amendments are effective for fiscal years, and interim periods within those years, beginning after December 15, 2013. Early adoption is permitted. The amendments are to be applied prospectively to all unrecognized tax benefits that exist at the effective date with retrospective application permitted. The Company does not expect the adoption of this ASU to have a material impact on its consolidated financial statements.
In February 2013, the FASB issued ASU No. 2013-02, Comprehensive Income (Topic 220): Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income. This ASU requires that companies present either in a single note or parenthetically on the face of the financial statements, the effect of significant amounts reclassified from each component of accumulated other comprehensive income based on its source (e.g., the release due to cash flow hedges from interest rate contracts) and the income statement line items affected by the reclassification (e.g., interest income or interest expense). If a component is not required to be reclassified to net income in its entirety, companies would instead cross reference to the related footnote for additional information. This ASU is effective for fiscal and interim reporting periods beginning after December 15, 2012. The adoption of this ASU did not have a material impact on the Company's consolidated financial statements.
In October 2012, the FASB issued ASU No. 2012-06, Business Combinations (Topic 805): Subsequent Accounting for an Indemnification Asset Recognized at the Acquisition Date as a Result of a Government-Assisted Acquisition of a Financial Institution, which addresses diversity in practice regarding the subsequent measurement of an indemnification asset in a government-assisted acquisition of a financial institution that includes a loss-sharing agreement. The amendments are effective for interim and annual reporting periods beginning on or after December 15, 2012 with early adoption permitted. The adoption of this ASU did not have a material impact on the Company’s consolidated financial statements.
In December 2011, the FASB issued ASU 2011-11, Balance Sheet (Topic 210): Disclosures about Offsetting Assets and Liabilities. Under this update, the Company will be required to disclose both gross information and net information about both instruments and transactions eligible for offset in the statement of financial position and transactions subject to an agreement similar to a master netting arrangement. The scope would include derivatives, sale and repurchase agreements and securities borrowing and securities lending arrangements. This disclosure is intended to enable financial statement users to understand the effect of such arrangements on the Company’s financial position. The objective of this update is to support further convergence between U.S. GAAP and International Financial Reporting Standards. In January 2013, the FASB released ASU 2013-01 Balance Sheet (Topic 210): Clarifying the Scope of Disclosures about Offsetting Assets and Liabilities. Under this update, the FASB limited the scope of ASU 2011-11 to items identified in the implementation guidance which include derivatives, sale and repurchase agreements and securities borrowing and securities lending arrangements that are either offset on the balance sheet or subject to an enforceable master netting agreement. Both of these updates are effective for annual reporting periods beginning on or after January 1, 2013. The adoption of this ASU did not have a material impact on the Company’s consolidated financial statements.

Acquisitions

Acquisitions	12 Months Ended
	Dec. 31, 2013
Business Combinations [Abstract]	'
Acquisitions	'
	ACQUISITIONS
	Acquisition of Randolph Bank & Trust Company
	On October 1, 2013, the Company completed the acquisition of Randolph Bank & Trust Company (“Randolph”) pursuant to the terms of the Agreement and Plan of Merger dated May 31, 2013. Randolph was a commercial bank with approximately $284 million in assets that served small businesses and professionals and operated six branches in the Piedmont-Triad area of North Carolina. This acquisition aligns with the Company’s strategy of growth focused within existing markets.
	Randolph shareholders received 0.87 shares of BNC voting common stock for each share of Randolph common stock, or cash in the amount of $10.00 per share. 80% of Randolph common shares were converted into the right to receive BNC voting common stock, while the remaining 20% were converted into the right to receive cash. As part of the closing, Randolph preferred shareholders, including the United States Department of the Treasury (“Treasury”), received cash payments equal to the liquidation value of their preferred shares.
	A summary of assets received and liabilities assumed for Randolph, as well as the associated fair value adjustments, are as follows (dollars in thousands):
		As Recorded by			Fair				As Recorded
		Randolph			Value Adjustments				by BNC
	Assets
	Cash and due from banks	$	14,207		$	—			$	14,207
	Investment securities available-for-sale	5,082			130			-1	5,212
	Federal Home Loan Bank stock, at cost	630			—				630
	Loans	161,220			(6,973		)	-2	154,247
	Premises and equipment	4,537			811			-3	5,348
	Accrued interest receivable	800			—				800
	Other real estate owned	4,844			(626		)	-4	4,218
	Core deposit intangible	—			2,676			-5	2,676
	Other assets	92,289			1,744			-6	94,033
	Total assets acquired	$	283,609		$	(2,238	)		$	281,371
	Liabilities
	Deposits	$	(260,484	)	$	(523	)	-7	$	(261,007	)
	Long-term borrowings	(6,100		)	(209		)	-8	(6,309		)
	Other liabilities	(1,291		)	—				(1,291		)
	Total liabilities assumed	$	(267,875	)	$	(732	)		$	(268,607	)
	Net assets acquired								12,764
	Total consideration paid								14,037
	Goodwill								$	1,273
	Explanation of fair value adjustments:
	-1	Adjustment for the fair value of the investment securities portfolio.
	-2	Adjustment for the fair value of the loan portfolio.
	-3	Adjustment for the fair value of the premises and equipment.
	-4	Adjustment for the fair value of the other real estate owned.
	-5	Adjustment for the fair value of the core deposit intangible.
	-6	Adjustment for the deferred tax asset recognized from acquisition.
	-7	Adjustment for the fair value of the time deposits.
	-8	Adjustment for the fair value of the borrowings.
	A summary of the consideration paid is as follows (dollars in thousands):
	Common stock issued (726,634 shares)	$	9,642
	Redemption of preferred stock	2,300
	Cash payments to common stockholders	2,095
	Total consideration paid	$	14,037
	The Company incurred transaction-related costs of $4.5 million for the year ended December 31, 2013, which were expensed as incurred. Transaction-related costs primarily include severance costs, professional services, data processing fees, marketing and advertising and other non-interest expenses. None of the goodwill is deductible for tax purposes. All goodwill related to this acquisition was allocated to the banking operations reporting unit.
	The following table presents financial information regarding the former Randolph operations included in our Consolidated Statements of Income from the date of acquisition through December 31, 2013 under the column “Actual from acquisition date through December 31, 2013”. These amounts do not include direct costs as explained above. In addition, the following table presents unaudited pro-forma information as if the acquisition of Randolph had occurred on January 1, 2012 under the “Pro-forma” columns. This pro-forma information gives effect to certain adjustments, including purchase accounting fair value adjustments, amortization of core deposit and other intangibles and related income tax effects. Transaction-related costs related to the acquisition are not reflected in the pro-forma amounts. The pro-forma information does not necessarily reflect the results of operations that would have occurred had the Company merged with Randolph at the beginning of 2012. Cost savings are also not reflected in the unaudited pro-forma amounts for the years ended December 31, 2013 and 2012, respectively.
		Actual from acquisition date through December 31,			Pro-forma year ended December 31,
		2013			2013				2012
	Net interest income	$	29,872		$	116,467			$	91,750
	Non-interest income	5,178			25,192				38,064
	Net income	3,271			18,078				10,967
	Net income available to common shareholders	3,271			17,018				8,361
	Pro-forma earnings per share:
	Basic				$	0.63			$	0.22
	Diluted				$	0.63			$	0.22
	Acquisition of First Trust Bank
	On November 30, 2012, the Company completed the acquisition of First Trust Bank (“First Trust”), which operated three branches in Charlotte, North Carolina. The acquisition of First Trust expanded and enhanced the BNC franchise in the metropolitan Charlotte market.
	A summary of assets received and liabilities assumed for First Trust, as well as the associated fair value adjustments, are as follows (dollars in thousands):
		As Recorded by			Fair					As Recorded
		First Trust			Value Adjustments					by BNC
	Assets
	Cash and due from banks	$	46,079		$	—				$	46,079
	Investment securities available-for-sale	124,616			—					124,616
	Federal Home Loan Bank stock, at cost	753			—					753
	Loans	179,702			(9,820		)	-1		169,882
	Premises and equipment	6,938			866			-2		7,804
	Accrued interest receivable	1,565			—					1,565
Other real estate owned	8,686			(535		)	-3		8,151
Core deposit intangible	—			1,826			-4		1,826
Other assets	12,337			3,295			-5		15,632
Total assets acquired	$	380,676		$	(4,368	)			$	376,308
Liabilities
Deposits	$	(323,139	)	$	(884	)	-6		$	(324,023	)
Short-term borrowings	(7,899		)	—					(7,899		)
Other liabilities	(2,849		)	—					(2,849		)
Total liabilities assumed	$	(333,887	)	$	(884	)			$	(334,771	)
Net assets acquired									41,537
Total consideration paid									36,565
Bargain purchase gain									$	4,972
Explanation of fair value adjustments:
-1	Adjustment for the fair value of the loan portfolio.
-2	Adjustment for fair value of the premises and equipment.
-3	Adjustment for the fair value of the other real estate owned.
-4	Adjustment for the fair value of the core deposit intangible.
-5	Adjustment for the deferred tax asset recognized from acquisition.
-6	Adjustment for the fair value of the time deposits.
A summary of the consideration paid for First Trust is as follows (dollars in thousands):
Common stock issued (3,276,101 shares)	$	26,177
Cash payments to First Trust stockholders	10,388
Total consideration paid	$	36,565
Acquisition of KeySource Financial, Inc.
On September 14, 2012, the Company completed the acquisition of KeySource Financial, Inc. (“KeySource”), which operated one branch in Durham, North Carolina. The acquisition of KeySource expanded and enhanced the BNC franchise in the Raleigh-Durham market.
A summary of assets received and liabilities assumed for KeySource, as well as the associated fair value adjustments, are as follows (dollars in thousands):
	As Recorded by KeySource			Fair Value Adjustments				As Recorded by BNC
Assets
Cash and due from banks	$	19,847		$	—			$	19,847
Investment securities available-for-sale	3,445			—				3,445
Federal Home Loan Bank stock, at cost	430			—				430
Loans	148,295			(8,690		)	-1	139,605
Premises and equipment	650			—				650
Accrued interest receivable	547			—				547
Other real estate owned	1,289			(150		)	-2	1,139
Core deposit intangible	—			621			-3	621
Other assets	4,445			3,516			-4	7,961
Total assets acquired	$	178,948		$	(4,703	)		174,245
Liabilities
Deposits	(151,553		)	(854		)	-5	(152,407		)
Short-term borrowings	(780		)	—				(780		)
Long-term debt	(5,999		)	(48		)	-6	(6,047		)
Other liabilities	(1,754		)	102			-7	(1,652		)
Total liabilities assumed	$	(160,086	)	$	(800	)		(160,886		)
Net assets acquired								13,359
Total consideration paid								13,942
Goodwill								$	583
Explanation of fair value adjustments:
-1	Adjustment for the fair value of the loan portfolio.
-2	Adjustment for the fair value of the other real estate owned.
-3	Adjustment for the fair value of the core deposit intangible.
-4	Adjustment for deferred tax asset recognized from acquisition.
-5	Adjustment for the fair value of the time deposits.
-6	Adjustment for the fair value of the subordinated debt assumed.
-7	Adjustment for the reversal of an accrued liability.
A summary of the consideration paid for KeySource is as follows (dollars in thousands):
Common stock issued (1,810,267 shares)	$	13,686
Fair value of KeySource stock options assumed	256
Total consideration paid	$	13,942
None of the goodwill is deductible for income tax purposes.
Acquisition of Branches from The Bank of Hampton Roads
On September 21, 2012, the Company acquired two branches of Gateway Bank & Trust Company located in Cary and Chapel Hill, North Carolina, respectively, which were owned and operated by The Bank of Hampton Roads (“BHR”). The estimated fair value of the assets acquired, which included cash, premises and equipment, and other assets, totaled $24.1 million, while the estimated fair value of liabilities assumed, which included deposits and other liabilities, totaled $24.5 million. BNC recorded approximately $0.4 million of goodwill related to this acquisition. None of the goodwill is deductible for income tax purposes.
FDIC-Assisted Acquisition of Carolina Federal Savings Bank
On June 8, 2012, the Company acquired certain assets and liabilities of Carolina Federal Savings Bank (“Carolina Federal”), a federal thrift organized under the laws of the United States and headquartered in Charleston, South Carolina, from the FDIC, as receiver of Carolina Federal. Carolina Federal operated two branches in the Charleston market. There is no loss-sharing arrangement with the FDIC with respect to this transaction. The FDIC paid the Company an asset discount in the amount of $10.7 million at closing and the deposits were acquired without a premium.
A summary of the assets received and liabilities assumed from the FDIC for Carolina Federal, as well as the associated fair value adjustments, are as follows (dollars in thousands):
	As Recorded by Carolina Federal			Fair Value Adjustments					As Recorded by BNC
Assets
Cash and due from banks	$	8,394		$	—				$	8,394
Federal Home Loan Bank stock, at cost	112			—					112
Loans	32,328			(2,862		)	-1		29,466
Accrued interest receivable	124			—					124
Core deposit intangible	—			93			-2		93
Other assets	35			1,291			-3		1,326
Total assets acquired	$	40,993		$	(1,478	)			$	39,515
Liabilities
Deposits	$	(52,992	)	$	(148	)	-4		$	(53,140	)
Deferred tax liability	—			(2,981		)	-5		(2,981		)
Other liabilities	(42		)	-					(42		)
Total liabilities assumed	(53,034		)	(3,129		)			(56,163		)
Excess of liabilities assumed over assets acquired	$	(12,041	)
Aggregate fair value adjustments				$	(4,607	)
Cash received from the FDIC									21,400
Net assets acquired (net after-tax gain)									4,752
Income tax effect									2,982
Net assets acquired (bargain purchase gain)									$	7,734
Explanation of fair value adjustments:
-1	Adjustment for the fair value of the loan portfolio.
-2	Adjustment for the fair value of the core deposit intangible.
-3	Adjustment for amount due to BNC from the FDIC.
-4	Adjustment for the fair value of the time deposits.
-5	Adjustment for the deferred tax liability from the acquisition gain.
The Company has determined the above noted acquisitions constitute a business combination as defined by FASB ASC Topic 805: Business Combinations (“ASC Topic 805”), which establishes principles and requirements for how the acquirer of a business recognizes and measures in its financial statements the identifiable assets acquired and the liabilities assumed. The Company has recorded the assets purchased and liabilities assumed at their estimated fair value in accordance with ASC Topic 805.
The estimated fair values are subject to refinement for up to one year after the closing date of the acquisition as additional information regarding closing date fair value becomes available. During this one year period, the causes of any changes in cash flow estimates are considered to determine whether the change results from circumstances that existed as of the acquisition date or if the change results from an event that occurred after the date of acquisition.

Shareholders_Equity

Shareholder's Equity	12 Months Ended
	Dec. 31, 2013
Stockholders' Equity Note [Abstract]	'
Shareholder's Equity	'
	SHAREHOLDERS’ EQUITY
	Conversion of Preferred Stock
	On February 7, 2013, all 1,804,566 shares of the Company’s Mandatorily Convertible Non-Voting Preferred Stock, Series B were converted into 1,804,566 shares of the Company’s non-voting common stock.
	Series A Preferred Stock Issued under TARP
	On December 5, 2008, as part of the United States Treasury’s ("Treasury") Troubled Asset Relief Program (“TARP”) Capital Purchase Program (“CPP”), the Company issued and sold to the Treasury 31,260 shares of Fixed Rate Cumulative Perpetual Preferred Stock, Series A (the “Series A Preferred Stock”), and a warrant to purchase up to 543,337 shares of the Company’s common stock at an exercise price of $8.63 per share.  On August 29, 2012, the Treasury completed the auction and sale of its investment in the Company’s Series A Preferred Stock to private investors.  The Company received no proceeds from the auction. On September 19, 2012, the Company repurchased the warrant from the Treasury for approximately $0.9 million. The warrant has been cancelled.
	On April 29, 2013, the Company redeemed all 31,260 shares of the Series A Preferred Stock that were issued under the Treasury’s TARP CPP. The redemption was made using cash on hand and the proceeds of a $30.0 million term loan that was obtained in April 2013. See further discussion of the terms of the loan agreement at Note 13.

Earnings_Per_Share

Earnings Per Share	12 Months Ended
	Dec. 31, 2013
Earnings Per Share [Abstract]	'
Earnings Per Share	'
	EARNINGS PER SHARE
	Basic earnings per common share is computed using the weighted average number of common shares and participating securities outstanding during the reporting period. Diluted earnings per common share is the amount of earnings available to each share of common stock during the reporting period adjusted to include the effect of potentially dilutive common shares. Potentially dilutive common shares include incremental shares issued for stock options, restricted stock awards and the warrant under the Treasury’s TARP CPP (collectively referred to herein as “Stock Rights”). Potentially dilutive common shares are excluded from the computation of dilutive earnings per share in the periods in which the effect would be anti-dilutive. As discussed in Note 3, the warrant issued in connection with the Treasury’s TARP CPP was repurchased by the Company and canceled in September 2012.
	The Company's basic and diluted earnings per share calculations for the years ended December 31, 2013, 2012 and 2011 are presented in the following table (dollars in thousands, except per share data):
		2013		2012		2011
	Net income available to common shareholders	$	16,187	$	8,049	$	4,526
	Add: Convertible preferred stock dividends	—		361		361
	Net income available to participating common shareholders	$	16,187	$	8,410	$	4,887
	Weighted average common shares - basic	26,495,211		15,790,448		9,073,024
	Add: Effect of convertible preferred stock	187,873		1,804,566		1,804,566
	Weighted average participating common shares - basic	26,683,084		17,595,014		10,877,590
	Effects of dilutive Stock Rights	31,090		4,204		16,541
	Weighted average participating common shares - diluted	26,714,174		17,599,218		10,894,131
	Basic earnings per common share	$	0.61	$	0.48	$	0.45
	Diluted earnings per common share	$	0.61	$	0.48	$	0.45
	For the years ended December 31, 2013, 2012, and 2011, there were 106,283, 428,536 and 677,590 shares, respectively, of Stock Rights excluded in computing diluted common shares outstanding because the exercise price exceeded the average share value for the periods.

Investment_Securities

Investment Securities	12 Months Ended
	Dec. 31, 2013
Investments, Debt and Equity Securities [Abstract]	'
Investment Securities	'
	INVESTMENT SECURITIES
	The amortized cost, gross unrealized gains and losses, and estimated fair values of investment securities at December 31, 2013 and 2012 are presented in the following tables (dollars in thousands):
		Amortized Cost				Gross Unrealized Gains				Gross Unrealized Losses				Fair Value
	December 31, 2013
	Available-for-sale:
	U.S. Government agencies	$	15,720			$	4			$	663			$	15,061
	State and municipals	194,224				2,704				5,665				191,263
	Corporate debt securities	9,011				16				138				8,889
	Other debt securities	4,727				—				347				4,380
	Equity securities	979				—				57				922
	Mortgage-backed securities:
	Residential government sponsored	41,231				1,442				659				42,014
	Other government sponsored	7,615				276				3				7,888
		$	273,507			$	4,442			$	7,532			$	270,417
	Held-to-maturity:
	State and municipals	$	221,378			$	379			$	10,169			$	211,588
	Corporate debt securities	16,000				—				1,081				14,919
	Other debt securities	10,000				—				—				10,000
		$	247,378			$	379			$	11,250			$	236,507
		Amortized Cost				Gross Unrealized Gains				Gross Unrealized Losses				Fair Value
	December 31, 2012
	Available-for-sale:
	U.S. Government agencies	$	15,735			$	660			$	—			$	16,395
	State and municipals	213,679				11,359				1,152				223,886
	Mortgage-backed securities:
	Residential government sponsored	83,764				3,155				29				86,890
	Other government sponsored	13,923				450				5				14,368
		$	327,101			$	15,624			$	1,186			$	341,539
	Held-to-maturity:
	State and municipals	$	108,805			$	4,576			$	146			$	113,235
	Corporate debt securities	6,000				—				1,000				5,000
		$	114,805			$	4,576			$	1,146			$	118,235
	During the second quarter of 2013, the Company transferred $86.5 million of available-for-sale state and municipal debt securities to the held-to-maturity category, reflecting the Company’s intent to hold those securities to maturity. Transfers of investment securities into the held-to-maturity category from the available-for-sale category are made at fair value at the date of transfer. The related $1.2 million of unrealized holding gain that was included in the transfer is retained in accumulated other comprehensive income and in the carrying value of the held-to-maturity securities. This amount will be amortized as an adjustment to interest income over the remaining life of the securities. This will offset the impact of amortization of the net premium created in the transfer. There were no gains or losses recognized as a result of this transfer.
	The amortized cost and estimated fair value of investment securities at December 31, 2013, by contractual maturity, are shown below (dollars in thousands). The expected life of mortgage-backed securities will differ from contractual maturities because borrowers may have the right to call or prepay the underlying mortgage loans with or without call or prepayment penalties. For purposes of the maturity table, mortgage-backed securities have been included in maturity groupings based on the contractual maturity.
		Amortized Cost				Fair Value
	Available-for-sale:
	Due in one year or less	$	2,300			$	2,308
	Due after one through five years	1,683				1,712
	Due after five through ten years	16,535				16,511
	Due after ten years	252,010				248,964
	Total debt securities	272,528				269,495
	Equity securities	979				922
		$	273,507			$	270,417
	Held-to-maturity:
	Due in one year or less	$	542			$	549
	Due after one year through five years	13,847				12,905
	Due after five through ten years	23,018				22,864
	Due after ten years	209,971				200,189
		$	247,378			$	236,507
	At December 31, 2013 and 2012, investment securities with an estimated fair value of approximately $184.0 million and $175.1 million, respectively, were pledged to secure public deposits and for other purposes required or permitted by law.
	The following table presents a summary of realized gains and losses from the sales of investment securities classified as available-for-sale for the years ended December 31, 2013, 2012 and 2011 (dollars in thousands):
		2013				2012				2011
	Proceeds from sales	$	18,414			$	117,381			$	50,717
	Gross realized gains on sales	$	201		-1	$	3,117			$	2,159
	Gross realized losses on sales	(243		)		(91		)		(957		)
	Total realized (losses) gains, net	$	(42	)		$	3,026			$	1,202
	(1) Includes $175 gain derived from the redemption of preferred stock from another financial institution that was purchased at auction from the Treasury.
	The following tables detail gross unrealized losses and fair values of investment securities aggregated by investment category and length of time that the individual securities have been in a continuous unrealized loss position at December 31, 2013 and 2012 (dollars in thousands):
		Less Than 12 Months											12 Months or More							Total
	31-Dec-13	Number of Securities			Fair Value				Unrealized Losses				Number of Securities			Fair Value		Unrealized Losses		Fair Value		Unrealized Losses
	Available-for-sale:
	U.S. Government agencies	5			$	14,583			$	663			—			$	—	$	—	$	14,583	$	663
	State and municipals	47			72,821				3,647				21			27,976		2,018		100,797		5,665
Corporate debt securities	2			7,862				138				—			—		—		7,862		138
Other debt securities	1			4,380				347				—			—		—		4,380		347
Equity securities	1			922				57				—			—		—		922		57
Mortgage-backed securities	15			14,146				444				4			4,582		218		18,728		662
	71			$	114,714			$	5,296			25			$	32,558	$	2,236	$	147,272	$	7,532
Held-to-maturity:
State and municipals	150			$	162,565			$	8,325			25			$	28,238	$	1,844	$	190,803	$	10,169
Corporate debt securities	1			4,939				61				1			2,980		1,020		7,919		1,081
	151			$	167,504			$	8,386			26			$	31,218	$	2,864	$	198,722	$	11,250
	Less Than 12 Months											12 Months or More							Total
31-Dec-12	Number of Securities			Fair Value				Unrealized Losses				Number of Securities			Fair Value		Unrealized Losses		Fair Value		Unrealized Losses
Available-for-sale:
State and municipals	56			$	75,551			$	1,152			—			$	—	$	—	$	75,551	$	1,152
Mortgage-backed securities	23			22,465				34				—			—		—		22,465		34
	112			$	98,016			$	1,186			—			$	—	$	—	$	98,016	$	1,186
Held-to-maturity:
State and municipals	9			$	10,301			$	146			—			$	—	$	—	$	10,301	$	146
Corporate debt securities	—			—				—				2			5,000		1,000		5,000		1,000
	9			$	10,301			$	146			2			$	5,000	$	1,000	$	15,301	$	1,146
At December 31, 2013, the gross unrealized losses reported for the U.S. government agency securities relate to investment securities issued by the Federal Home Loan Mortgage Corporation (“Freddie Mac”) or the United States Small Business Administration. The agency securities with an unrealized loss have been in that position for less than 12 months. The Freddie Mac securities have investment grade ratings. The Company noted that, of the 243 state and municipal securities in an unrealized loss position, only 46 of these securities have been in an unrealized loss position for greater than 12 months. All state and municipal securities in the Company's portfolio were rated as investment grade at December 31, 2013. The corporate debt securities are with well-capitalized and sound financial institutions. These securities are all rated as investment grade. The other debt security is backed by a pool of student loan debt. The security has been in that position for less than 12 months and has an investment grade rating. The equity securities held by the Company consists of common stock that was acquired as part of the Company’s acquisition of Randolph. These shares have been in an unrealized loss position for less than 12 months and there are no concerns about the long-term viability of issuer. The gross unrealized losses reported for the mortgage-backed securities relate to investment securities issued by the Federal National Mortgage Association, the Government National Mortgage Association, or Freddie Mac.
The Company does not intend to sell, and it is not more likely than not that the Company will be required to sell, these investment securities before the anticipated recovery of the amortized cost basis. The unrealized losses for the debt securities are caused by changes in market interest rates and not credit concerns related to the respective issuers. Based on this analysis, the Company does not consider these investment securities to be other-than-temporarily impaired at December 31, 2013.

Loans_and_Allowance_for_Loan_L

Loans and Allowance for Loan Losses	12 Months Ended
	Dec. 31, 2013
Receivables [Abstract]	'
Loans and Allowance for Loan Losses	'
	LOANS AND ALLOWANCE FOR LOAN LOSSES
	Major categories of loans, including loans covered under loss-share agreements with the FDIC (“covered”) and loans not covered under loss-share agreements (“non-covered”) at December 31, 2013 and 2012 are presented below (dollars in thousands):
		December 31, 2013												December 31, 2012
		Covered Loans (1)				Non-covered Loans (2)				Total				Covered Loans (1)			Non-covered Loans (2)				Total
	Commercial real estate	$	96,452			$	1,236,204			$	1,332,656			$	114,757		$	1,034,686			$	1,149,443
	Commercial construction	18,331				226,229				244,560				33,447			183,747				217,194
	Commercial and industrial	5,919				163,020				168,939				10,898			150,870				161,768
	Leases	—				16,137				16,137				—			13,209				13,209
	Total commercial	120,702				1,641,590				1,762,292				159,102			1,382,512				1,541,614
	Residential construction	16				32,418				32,434				215			34,514				34,729
	Residential mortgage	65,024				402,899				467,923				87,015			359,260				446,275
	Consumer and other	1,919				11,949				13,868				2,598			10,042				12,640
		$	187,661			$	2,088,856			$	2,276,517			$	248,930		$	1,786,328			$	2,035,258
	-1	The unpaid principal balance for covered loans was $195.4 million and $272.7 million at December 31, 2013 and 2012, respectively.
	-2	Amount includes $384.0 million and $347.2 million of acquired, non-covered loans as of December 31, 2013 and 2012, respectively.
	Unearned income and net deferred fees and costs totaled $2.3 million and $1.4 million at December 31, 2013 and 2012, respectively.
	A portion of the fair value discount on acquired covered loans has an accretable yield associated with those loans that is accreted into interest income over the estimated remaining life of the loans. The remaining non-accretable difference represents cash flows not expected to be collected. The following tables detail changes in the carrying amount of covered acquired loans and accretable yield for loans receivable for the years ended December 31, 2013 and 2012 (dollars in thousands):
		2013								2012
		Accretable Yield				Carrying Yield				Accretable Yield				Carrying Yield
	Balance at beginning of period	$	(12,895	)		$	248,930			$	(8,387	)		$	320,033
	Reductions from payments and foreclosures, net	—				(69,074		)		—				(74,998		)
	Reclass from non-accretable to accretable yield	(968		)		—				(8,403		)		—
	Accretion	7,805				7,805				3,895				3,895
	Balance at end of period	$	(6,058	)		$	187,661			$	(12,895	)		$	248,930
	The Company evaluates loans acquired with evidence of credit deterioration in accordance with the provisions of ASC Topic 310-30: Loans and Debt Securities Acquired with Deteriorated Credit Quality. Credit-impaired loans are those loans showing evidence of credit deterioration since origination and it is probable, at the date of acquisition, the Company will not collect all contractually required principal and interest payments. The following tables present loans acquired during the years ended December 31, 2013 and 2012, at acquisition date, accounted for under ASC Topic 310-30 (dollars in thousands):
		2013				2012
	Contractually required payments receivable	$	3,781			$	52,865
	Contractual cash flows not expected to be collected (non-accretable)	(1,336		)		(11,716		)
	Expected cash flows	2,445				41,149
	Interest component of expected cash flows	(261		)		(1,954		)
	Fair value of loans acquired	$	2,184			$	39,195
	The acquisition date unpaid balance of loans acquired during the years ended December 31, 2013 and 2012 that did not have credit deterioration was $158.0 million and $254.3 million, respectively, with an estimated fair value of $152.1 million and $240.8 million, respectively. The discount of $5.9 million and $13.5 million for the years ended December 31, 2013 and 2012, respectively, will be amortized on a level-yield basis over the economic life of the loans.
	The Company has loan relationships with its directors and executive officers and with companies with which certain directors and executive officers are associated. The following is a summary of loans to executive officers, directors and their affiliates for the year ended December 31, 2013 (dollars in thousands):
	Balance at beginning of year	$	21,827
	Additional borrowings	15,943
	Loan repayments	-16,249
	Balance at end of year	$	21,521
	The Company has the ability to borrow funds from the Federal Home Loan Bank (“FHLB”) and from the Federal Reserve Bank. At December 31, 2013 and 2012, real estate loans with carrying values of $702.5 million and $462.4 million, respectively, were pledged to secure borrowing facilities from these institutions.
	The Company has adopted comprehensive lending policies, underwriting standards and loan review procedures, which are reviewed on a regular basis.   Each class of financing receivable detailed below is subject to risks that could have an adverse impact on the credit quality of the loan portfolio.
	Commercial real estate loans
	Commercial real estate loans consist primarily of loans secured by nonresidential (owner-occupied and/or non-owner occupied) real estate, multifamily housing, and agricultural loans. Commercial real estate is primarily dependent on successful operation or management of the property in order to generate sufficient cash to repay the outstanding debt. While these loans are normally secured by commercial buildings for office, storage and warehouse space, it is possible that the liquidation of the collateral will not fully satisfy the obligation. High unemployment, generally weak economic conditions or oversupply of properties may result in customers having to provide rental rate concessions to achieve adequate occupancy rates.
	Commercial construction loans
	Commercial construction loans, including land development loans, are highly dependent on the supply and demand for commercial real estate in the markets served by BNC as well as the demand for newly constructed residential homes and lots that customers are developing. Continuing deterioration in demand could result in significant decreases in the underlying collateral values and make repayment of the outstanding loans more difficult for customers.
	Commercial and industrial loans and leases
	Each commercial loan or lease is underwritten based primarily upon the customer’s ability to generate the required cash flow to service the debt in accordance with the contractual terms and conditions of the loan agreement. A complete understanding of the borrower’s businesses including the experience and background of the principals is obtained prior to approval. To the extent that the loan or lease is secured by collateral, which is primarily business assets such as inventory or accounts receivable. To the extent that the principals or other parties provide personal guarantees, the relative financial strength and liquidity of each guarantor is assessed. Common risks include general economic conditions within the markets the Bank serves, as well as risks that are specific to each transaction, including demand for products and services and reductions in the fair value of collateral.
	Residential construction loans
	Residential construction loans are made to established homebuilders and are typically secured by 1-4 family residential property. Significant and rapid declines in real estate values or demand can result in increased difficulty in converting these construction loans to permanent loans. Such a decline in values has led to unprecedented levels of foreclosures and losses within the banking industry. In addition, there has been an increase in the average time houses are on the market for sale.
	Residential mortgage loans
	Each residential mortgage loan is underwritten using credit scoring and analysis tools. These credit scoring tools take into account factors such as payment history, credit utilization, length of credit history, types of credit currently in use, and recent credit inquiries. The borrowers' debt-to-income ratio, sources of income and employment history, among other factors, are also evaluated as part of the underwriting process. To the extent that the loan is secured by collateral, the likely value of that collateral is evaluated. Common risks to each class of non-commercial loans include risks that are not specific to individual transactions such as general economic conditions within the markets BNC serves, particularly unemployment and potential declines in real estate values. Personal events such as disability or change in marital status also add risk to residential mortgage loans. Second mortgage loans and home equity lines of credit generally involve greater credit risk than first mortgage loans because they are secured by mortgages that are subordinate to the first mortgage on the property.  If the borrower is forced into foreclosure, the Company will not receive any proceeds from the sale of the property until the first mortgage has been satisfied. Over the past two years, the Company has tightened underwriting criteria and requirements for second mortgage and home equity lines of credit. This includes requiring higher credit scores from borrowers and limiting loan-to-value ratios.
	At December 31, 2013, second mortgage loans and home equity lines of credit for which the Company did not own or service the related first mortgage loans totaled approximately $103.1 million, which represented approximately 97% of the total second liens held by the Company.  Since substantially all first mortgage loans originated by the Company are eligible for sale in the secondary market, and the Company typically does not service the related first mortgage loans if they are sold, the Company may be unable to track the delinquency status of the related first mortgage loans and whether such loans are at risk of foreclosure by others.  The Company monitors the increased credit risk associated with second mortgage loans and home equity lines of credit for which the Company does not own or service the related first mortgage loans as part of the overall management of the relationship. If the Company identifies significant deterioration in a borrower’s credit quality, the Company may freeze the borrower’s ability to make additional principal draws under the home equity lines of credit.
	Home equity lines of credit are offered as “revolving” lines of credit which have a 15 year maturity and draw period. Borrowers are able to choose scheduled monthly interest-only payments during the term of the line or monthly payments of 1.5% of the outstanding prinicpal, along with associated interest. The full principal amount is due at maturity as a lump-sum balloon payment under the interest-only payment option.  At December 31, 2013, approximately 96% of the home equity lines of credit were paying scheduled monthly interest-only payments. At maturity, home equity loans are re-underwritten based on our current underwriting standards and updated appraisals are obtained.  Our underwriting criteria includes analysis of the loan amount in relation to the borrower's total mortgage debt, in addition to normal credit underwriting guidelines.  If the borrower qualifies under our current underwriting standards, the loans are either renewed, converted to conventional second mortgage loans that are fully amortizing, or refinanced along with the existing first mortgage into a new first mortgage loan.  Borrowers may be required to repay a portion of the outstanding principal balance to qualify for such renewals. The following table summarizes the maturity dates of our home equity lines of credit as of December 31, 2013 (dollars in thousands):
	2014	$	1,923
	2015	1,592
	2016	3,206
	2017	3,615
	2018	4,597
	Thereafter	118,044
		$	132,977
	Consumer and other loans
	Consumer and other loans include loans secured by personal property such as residential real estate, automobiles, marketable securities, other titled recreational vehicles including boats and motorcycles, as well as unsecured consumer debt. The value of underlying collateral within this class is especially volatile due to potential rapid depreciation in values since date of loan origination in excess of principal repayment. Consumer loan collections are sensitive to job loss, illness and other personal factors.
	An analysis of the allowance for loan losses for the years ended December 31, 2013 and 2012 is presented below (dollars in thousands):
	2013		Commercial real estate				Commercial construction				Commercial and industrial				Leases			Residential construction				Residential Mortgage				Consumer and other			Total
	Allowance for loan losses:
Balance January 1, 2013		$	15,718			$	9,807			$	3,578			$	18		$	593			$	10,441			$	137		$	40,292
Charge-offs		(5,492		)		(9,519		)		(3,442		)		—			—				(9,598		)		(377		)	(28,428		)
Recoveries		1,525				2,712				1,721				—			58				1,696				27			7,739
Provision (1)		5,084				1,879				1,017				38			(412		)		4,224				358			12,188
Change in FDIC indemnification asset (1)		(2,083		)		1,859				263				—			(26		)		967				104			1,084
Balance December 31, 2013		$	14,752			$	6,738			$	3,137			$	56		$	213			$	7,730			$	249		$	32,875
Balances as of December 31, 2013:
Specific reserves:
Impaired loans		$	3,209			$	1,595			$	43			$	—		$	35			$	1,361			$	10		$	6,253
Purchase credit impaired loans		2,979				691				552				—			—				1,833				23			6,078
Total specific reserves		6,188				2,286				595				—			35				3,194				33			12,331
General reserves		8,564				4,452				2,542				56			178				4,536				216			20,544
Total		$	14,752			$	6,738			$	3,137			$	56		$	213			$	7,730			$	249		$	32,875
Loans:
Individually evaluated for impairment		$	33,950			$	12,877			$	1,525			$	—		$	356			$	14,037			$	165		$	62,910
Purchase credit impaired loans		100,290				18,460				6,649				—			16				50,825				1,917			178,157
Loans collectively evaluated for impairment		1,198,416				213,223				160,765				16,137			32,062				403,061				11,786			2,035,450
Total		$	1,332,656			$	244,560			$	168,939			$	16,137		$	32,434			$	467,923			$	13,868		$	2,276,517
2012		Commercial real estate				Commercial construction				Commercial and industrial				Leases			Residential construction				Residential Mortgage				Consumer and other			Total
Allowance for loan losses:
Balance January 1, 2012		$	11,789			$	10,957			$	4,338			$	18		$	699			$	3,058			$	149		$	31,008
Charge-offs		(9,123		)		(10,985		)		(4,727		)		—			(219		)		(9,451		)		(205		)	(34,710		)
Recoveries		753				1,467				324				—			126				862				14			3,546
Provision (2)		8,473				1,359				2,192				—			(13		)		10,600				126			22,737
Change in FDIC indemnification asset (2)		3,826				7,009				1,451				—			—				5,372				53			17,711
Balance December 31, 2012		$	15,718			$	9,807			$	3,578			$	18		$	593			$	10,441			$	137		$	40,292
Balances as of December 31, 2012:
Specific reserves:
Impaired loans		$	578			$	3,023			$	4			$	—		$	2			$	1,612			$	—		$	5,219
Purchase credit impaired loans		6,518				2,704				1,569				—			—				4,000				18			14,809
Total specific reserves		7,096				5,727				1,573				—			2				5,612				18			20,028
General reserves		8,622				4,080				2,005				18			591				4,829				119			20,264
Total		$	15,718			$	9,807			$	3,578			$	18		$	593			$	10,441			$	137		$	40,292
Loans:
Individually evaluated for impairment		$	26,076			$	19,367			$	1,682			$	—		$	361			$	16,850			$	127		$	64,463
Purchase credit impaired loans		121,983				34,666				12,397				—			5,741				68,273				2,590			245,650
Loans collectively evaluated for impairment		1,001,384				163,161				147,689				13,209			28,627				361,152				9,923			1,725,145
Total		$	1,149,443			$	217,194			$	161,768			$	13,209		$	34,729			$	446,275			$	12,640		$	2,035,258
-1	The provision for loan losses includes the "net" provision on covered loans after coverage provided by FDIC loss-share agreements, which totaled $0.6 million for the year ended December 31, 2013. This resulted in an increase in the FDIC indemnification asset of $1.1 million, which is the difference between the net provision on covered loans and the total additions to the allowance for loan losses allocable to the covered loan portfolio of $1.7 million for the year ended December 31, 2013.
-2	The provision for loan losses includes the "net" provision on covered loans after coverage provided by FDIC loss-share agreements, which totaled $5.0 million for the year ended December 31, 2012. This resulted in an increase in the FDIC indemnification asset of $17.7 million, which is the difference between the net provision on covered loans and the total additions to the allowance for loan losses allocable to the covered loan portfolio of $22.7 million for the year ended December 31, 2012.
The following tables present information related to impaired loans, excluding purchased impaired loans, at December 31, 2013 and 2012 (dollars in thousands):
	Impaired Loans - With Allowance												Impaired Loans - With No Allowance
December 31, 2013	Recorded Investment				Unpaid Principal Balance				Allowances for Loan Losses Allocated				Recorded Investment			Unpaid Principal Balance
Originated:
Commercial real estate	$	16,261			$	16,228			$	3,164			$	17,129		$	17,116
Commercial construction	7,239				7,218				1,582				5,536			5,902
Commercial and industrial	934				932				42				3			—
Residential construction	357				355				35				—			—
Residential mortgage	8,529				8,513				1,333				3,719			3,699
Consumer and other	104				104				10				37			37
Total originated	33,424				33,350				6,166				26,424			26,754
Acquired (non-covered):
Commercial real estate	490				489				45				557			565
Commercial construction	142				141				14				—			—
Commercial and industrial	185				185				1				406			648
Residential mortgage	636				636				27				1,236			1,528
Consumer and other	—				—				—				24			21
Total acquired (non-covered)	1,453				1,451				87				2,223			2,762
Acquired (covered):
Commercial real estate	—				—				—				173			183
Commercial construction	—				—				—				400			414
Commercial and industrial	—				—				—				3			35
Residential mortgage	—				—				—				5,788			5,877
Total acquired (covered)	—				—				—				6,364			6,509
Total loans	$	34,877			$	34,801			$	6,253			$	35,011		$	36,025
	Impaired Loans - With Allowance												Impaired Loans - With No Allowance
December 31, 2012	Recorded Investment				Unpaid Principal Balance				Allowances for Loan Losses Allocated				Recorded Investment			Unpaid Principal Balance
Originated:
Commercial real estate	$	7,918			$	7,891			$	562			$	17,915		$	17,867
Commercial construction	11,838				11,815				3,022				7,581			7,552
Commercial and industrial	99				99				1				1,352			1,351
Residential construction	362				361				2				—			—
Residential mortgage	10,772				10,755				1,526				4,801			4,788
Consumer and other	—				—				—				124			122
Total originated	30,989				30,921				5,113				31,773			31,680
Acquired (non-covered):
Commercial real estate	500				800				16				248			256
Commercial and industrial	240				240				3				—			—
Residential mortgage	601				607				87				765			895
Consumer and other	—				—				—				5			5
Total acquired (non-covered)	1,341				1,647				106				1,018			1,156
Acquired (covered):
Commercial real estate	—				—				—				548			625
Commercial construction	—				—				—				530			561
Commercial and industrial	—				—				—				143			176
Residential mortgage	—				—				—				5,504			5,749
Total acquired (covered)	—				—				—				6,725			7,111
Total loans	$	32,330			$	32,568			$	5,219			$	39,516		$	39,947
The following tables present information related to the average recorded investment and interest income recognized on impaired loans, excluding purchased impaired loans, for the years ended December 31, 2013 and 2012 (dollars in thousands):
	2013								2012
	Average Recorded Investment				Interest Income Recognized				Average Recorded Investment				Interest Income Recognized
Impaired loans with allowance:
Commercial real estate	$	20,205			$	839			$	19,414			$	2,376
Commercial construction	6,700				246				17,074				1,758
Commercial and industrial	499				28				1,923				177
Residential construction	367				12				272				18
Residential mortgage	11,074				381				13,955				952
Consumer and other	23				—				—				—
Total impaired loans with allowance	$	38,868			$	1,506			$	52,638			$	5,281
Impaired loans with no allowance:
Commercial real estate	$	12,724			$	600			$	22,673			$	2,271
Commercial construction	8,192				346				19,708				3,042
Commercial and industrial	592				30				2,051				276
Residential construction	—				—				473				96
Residential mortgage	10,614				357				19,909				2,205
Consumer and other	40				—				202				18
Total impaired loans with no allowance	$	32,162			$	1,333			$	65,016			$	7,908
For the years ended December 31, 2013 and 2012, the amount of interest income recognized within the period that the loans were impaired was primarily related to loans modified in a troubled debt restructuring (“TDR”) that remained on accrual status. For the years ended December 31, 2013 and 2012, the amount of interest income recognized using a cash-basis method of accounting during the period that the loans were impaired was not material.
The following tables present an aging analysis of the recorded investment in the Company's loans at December 31, 2013 and 2012(dollars in thousands):
December 31, 2013	30-59 Days Past Due				60-89 Days Past Due				Greater than 90 Days Past Due				Non-Accrual			Total Past Due				Current				Total Loans
Originated:
Commercial real estate	$	353			$	—			$	—			$	6,044		$	6,397			$	1,008,236			$	1,014,633
Commercial construction	14				20				—				2,801			2,835				199,305				202,140
Commercial and industrial	533				10				—				245			788				138,779				139,567
Leases	—				—				—				—			—				16,137				16,137
Residential construction	—				—				—				—			—				29,636				29,636
Residential mortgage	1,417				248				—				5,102			6,767				287,893				294,660
Consumer and other	—				—				—				37			37				8,066				8,103
Total originated	2,317				278				—				14,229			16,824				1,688,052				1,704,876
Acquired (non-covered):
Commercial real estate	116				—				—				605			721				220,850				221,571
Commercial construction	50				—				—				—			50				24,039				24,089
Commercial and industrial	—				5				—				591			596				22,857				23,453
Residential construction	—				—				—				—			—				2,782				2,782
Residential mortgage	950				514				—				1,665			3,129				105,110				108,239
Consumer and other	108				1				—				24			133				3,713				3,846
Total acquired (non-covered)	1,224				520				—				2,885			4,629				379,351				383,980
Acquired (covered):
Commercial real estate	1,145				848				—				8,086			10,079				86,373				96,452
Commercial construction	201				38				—				5,111			5,350				12,981				18,331
Commercial and industrial	—				47				—				640			687				5,232				5,919
Residential construction	—				—				—				—			—				16				16
Residential mortgage	313				28				—				9,818			10,159				54,865				65,024
Consumer and other	8				2				—				90			100				1,819				1,919
Total acquired (covered)	1,667				963				—				23,745			26,375				161,286				187,661
Total loans	$	5,208			$	1,761			$	—			$	40,859		$	47,828			$	2,228,689			$	2,276,517
December 31, 2012	30-59 Days Past Due				60-89 Days Past Due				Greater than 90 Days Past Due				Non-Accrual			Total Past Due				Current				Total Loans
Originated:
Commercial real estate	$	731			$	1,080			$	—			$	3,522		$	5,333			$	818,764			$	824,097
Commercial construction	369				—				—				7,586			7,955				145,924				153,879
Commercial and industrial	243				8				—				1,121			1,372				123,040				124,412
Leases	—				—				—				—			—				13,209				13,209
Residential construction	—				—				—				—			—				21,704				21,704
Residential mortgage	1,205				2,133				—				7,356			10,694				282,037				292,731
Consumer and other	9				127				—				—			136				8,988				9,124
Total originated	2,557				3,348				—				19,585			25,490				1,413,666				1,439,156
Acquired (non-covered):
Commercial real estate	1,255				—				—				1,179			2,434				208,155				210,589
Commercial construction	315				—				—				—			315				29,553				29,868
Commercial and industrial	113				—				—				248			361				26,097				26,458
Residential construction	136				—				—				—			136				12,674				12,810
Residential mortgage	960				—				—				1,425			2,385				64,144				66,529
Consumer and other	1				1				—				5			7				911				918
Total acquired (non-covered)	2,780				1				—				2,857			5,638				341,534				347,172
Acquired (covered):
Commercial real estate	5,257				84				—				12,730			18,071				96,686				114,757
Commercial construction	—				113				—				14,961			15,074				18,373				33,447
Commercial and industrial	55				—				—				1,170			1,225				9,673				10,898
Residential construction	—				—				—				—			—				215				215
Residential mortgage	3,593				352				—				18,057			22,002				65,013				87,015
Consumer and other	70				1				—				63			134				2,464				2,598
Total acquired (covered)	8,975				550				—				46,981			56,506				192,424				248,930
Total loans	$	14,312			$	3,899			$	—			$	69,423		$	87,634			$	1,947,624			$	2,035,258
Credit quality indicators
The Company uses several credit quality indicators to manage credit risk in an ongoing manner. The Company's primary credit quality indicators use an internal credit risk rating system that categorizes loans and leases into pass, special mention, or classified categories. Credit risk ratings are applied individually to those classes of loans and leases that have significant or unique credit characteristics that benefit from a case-by-case evaluation. These are typically loans and leases to businesses or individuals in the classes which comprise the commercial portfolio segment. Groups of loans and leases that are underwritten and structured using standardized criteria and characteristics are typically risk rated and monitored collectively. These are typically loans and leases to individuals in the classes which comprise the consumer portfolio segment.
At least annually the Company will review all loans exceeding a certain threshold and assign a risk rating. Loans excluded from the scope of the annual review process are generally classified as pass credits until: (a) they become past due; (b) management becomes aware of a deterioration in the creditworthiness of the borrower; or (c) the customer contacts the Company for a modification or new loan. The Company uses the following definitions for risk ratings:
Special Mention. Loans classified as special mention have a potential weakness that deserves management’s close attention. If left uncorrected, these potential weaknesses may result in deterioration of the repayment prospects for the loan or of the institution’s credit position at some future date.
Substandard. Loans classified as substandard are inadequately protected by the current net worth and payment capacity of the obligor or of the collateral pledged, if any. Loans so classified have a well-defined weakness or weaknesses that jeopardize the liquidation of the debt. They are characterized by the distinct possibility that the institution will sustain some loss if the deficiencies are not corrected.
Doubtful. Loans classified as doubtful have all the weaknesses inherent in those classified as substandard, with the added characteristic that the weaknesses make collection or liquidation in full, on the basis of currently existing facts, conditions, and values, highly questionable and improbable.
Loss. Loans classified as loss are considered uncollectible and are in the process of being charged-off, as soon as practical, once so classified.
The following tables present the recorded investment in the Company’s loans, by credit quality indicator, at December 31, 2013 and 2012(dollars in thousands):
December 31, 2013	Total				Pass Credits				Special Mention				Substandard			Doubtful				Loss
Originated:
Commercial real estate	$	1,014,633			$	930,554			$	37,685			$	46,394		$	—			$	—
Commercial construction	202,140				175,365				13,113				13,662			—				—
Commercial and industrial	139,567				131,658				5,411				2,498			—				—
Leases	16,137				16,137				—				—			—				—
Residential construction	29,636				28,160				1,120				356			—				—
Residential mortgage	294,660				258,042				19,234				17,384			—				—
Consumer and other	8,103				7,807				177				119			—				—
Total originated	1,704,876				1,547,723				76,740				80,413			—				—
Total acquired (non-covered):
Commercial real estate	221,571				195,526				17,343				8,702			—				—
Commercial construction	24,089				21,126				922				2,041			—				—
Commercial and industrial	23,453				18,681				3,328				1,444			—				—
Residential construction	2,782				2,782				—				—			—				—
Residential mortgage	108,239				91,847				10,766				5,626			—				—
Consumer and other	3,846				3,760				62				24			—				—
Total acquired (non-covered):	383,980				333,722				32,421				17,837			—				—
Acquired (covered):
Commercial real estate	96,452				61,091				12,831				17,929			4,601				—
Commercial construction	18,331				9,756				1,397				6,751			427				—
Commercial and industrial	5,919				4,231				796				332			560				—
Residential construction	16				—				16				—			—				—
Residential mortgage	65,024				36,744				13,246				10,296			4,738				—
Consumer and other	1,919				1,726				103				90			—				—
Total acquired (covered)	187,661				113,548				28,389				35,398			10,326				—
Total loans	$	2,276,517			$	1,994,993			$	137,550			$	133,648		$	10,326			$	—
31-Dec-12	Total				Pass Credits				Special Mention				Substandard			Doubtful				Loss
Originated:
Commercial real estate	$	824,097			$	739,050			$	39,562			$	45,485		$	—			$	—
Commercial construction	153,879				115,996				18,088				19,795			—				—
Commercial and industrial	124,412				117,546				4,385				2,481			—				—
Leases	13,209				13,209				—				—			—				—
Residential construction	21,704				19,546				440				1,718			—				—
Residential mortgage	292,731				250,083				21,831				20,817			—				—
Consumer and other	9,124				8,760				320				44			—				—
Total originated	1,439,156				1,264,190				84,626				90,340			—				—
Acquired (non-covered):
Commercial real estate	210,589				192,016				6,993				11,080			500				—
Commercial construction	29,868				24,060				2,228				3,580			—				—
Commercial and industrial	26,458				24,491				1,401				326			—				240
Residential construction	12,810				7,086				176				5,548			—				—
Residential mortgage	66,529				57,965				4,445				4,119			—				—
Consumer and other	918				903				10				5			—				—
Total acquired (non-covered)	347,172				306,521				15,253				24,658			500				240
Acquired (covered):
Commercial real estate	114,757				69,401				19,744				14,960			10,642				10
Commercial construction	33,447				14,605				1,493				9,715			7,634				—
Commercial and industrial	10,898				6,251				2,745				1,118			784				—
Residential construction	215				16				199				—			—				—
Residential mortgage	87,015				46,039				17,069				11,956			11,808				143
Consumer and other	2,598				2,237				291				58			11				1
Total acquired (covered)	248,930				138,549				41,541				37,807			30,879				154
Total loans	$	2,035,258			$	1,709,260			$	141,420			$	152,805		$	31,379			$	394
Modifications
A modification of a loan constitutes a TDR when a borrower is experiencing financial difficulty and the modification constitutes a concession.  The Company offers various types of concessions when modifying a loan; however, forgiveness of principal is rarely granted.  Commercial and industrial loans modified in a TDR often involve temporary interest-only payments, term extensions, and converting revolving credit lines to term loans.  Additional collateral, a co-borrower, or a guarantor is often requested.  Commercial mortgage and construction loans modified in a TDR often involve reducing the interest rate for the remaining term of the loan, extending the maturity date at an interest rate lower than the current market rate for new debt with similar risk, or substituting or adding a new borrower or guarantor.  Construction loans modified in a TDR may also involve extending the interest-only payment period.  Residential mortgage loans modified in a TDR are primarily comprised of loans where monthly payments are lowered to accommodate the borrowers’ financial needs for a period of time.  After the lowered monthly payment period ends, the borrower reverts back to paying principal and interest per the original terms with the maturity date adjusted accordingly.  Land loans are also included in the class of residential mortgage loans.  Land loans are typically structured as interest-only monthly payments with a balloon payment due at maturity.  Land loans modified in a TDR typically involve extending the balloon payment by one to three years, or changing the monthly payments from interest-only to principal and interest.  Home equity modifications are made infrequently and are not offered if the Company also holds the first mortgage.  Home equity modifications are uniquely designed to meet the specific needs of each borrower.  Occasionally, the terms will be modified to a standalone second lien mortgage, thereby changing their loan class from home equity to residential mortgage.
Loans modified in a TDR are, in many cases, already on nonaccrual status and partial charge-offs have in some cases already been taken against the outstanding loan balance.  As a result, loans modified in a TDR for the Company may have the financial effect of increasing the specific allowance associated with the loan.  An allowance for impaired consumer and commercial loans that have been modified in a TDR 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 estimated fair value of the collateral, less any selling costs, if the loan is collateral dependent.  Management exercises significant judgment in developing these estimates. Once we classify a loan a TDR, the loan is only removed from TDR classification under three circumstances: (1) the loan is paid off, (2) the loan is charged off or (3) if, at the beginning of the current fiscal year, the loan has performed in accordance with the modified terms for a minimum of six consecutive months and at the time of modification the loan’s interest rate represented a then current market interest rate for a loan of similar risk.
The following tables provide a summary of loans modified as TDRs at December 31, 2013 and 2012 (dollars in thousands):
	Accrual				Nonaccrual				Total TDRs				Allowance for Loan Losses Allocated
December 31, 2013
Commercial real estate	$	3,986			$	1,107			$	5,093			$	767
Commercial construction	5,472				274				5,746				520
Commercial and industrial	662				—				662				36
Residential mortgage	6,545				625				7,170				476
Consumer and other	105				37				142				11
Total modifications	$	16,770			$	2,043			$	18,813			$	1,810
Total contracts	43				10				53
	Accrual				Nonaccrual				Total TDRs				Allowance for Loan Losses Allocated
31-Dec-12
Commercial real estate	$	16,010			$	2,314			$	18,324			$	904
Commercial construction	11,420				1,030				12,450				1,960
Commercial and industrial	322				1,029				1,351				—
Residential mortgage	8,015				4,639				12,654				1,165
Consumer and other	122				11				133				—
Total modifications	$	35,889			$	9,023			$	44,912			$	4,029
Total contracts	44				20				64
As of December 31, 2013 and 2012, the Company had no available commitments outstanding on TDRs.
The Company offers a variety of modifications to borrowers. The modification categories offered can generally be described in the following categories:
Rate modification - A modification in which the interest rate is changed.
Term modification - A modification in which the maturity date, timing of payments or frequency of payments is changed.
Interest only modification – A modification in which the loan is converted to interest only payments for a period of time.
Payment modification – A modification in which the principal and interest payment are lowered from the original contractual terms.
Combination modification – Any other type of modification, including the use of multiple categories above.
The following tables present new TDRs by modification category for the years ended December 31, 2013 and 2012 (dollars in thousands). All balances represent the recorded investment as of the end of the period in which the modification was made.
	2013
	Rate Modifications				Term Modifications				Interest only Modifications				Payment Modifications			Combination Modifications				Total Modifications
Commercial real estate	$	101			$	648			$	331			$	—		$	1,035			$	2,115
Commercial construction	128				—				152				—			827				1,107
Commercial and industrial	—				129				536				—			—				665
Residential mortgage	452				84				1,076				—			573				2,185
Consumer and other	—				23				—				—			—				23
Total modifications	$	681			$	884			$	2,095			$	—		$	2,435			$	6,095
	2012
	Rate Modifications				Term Modifications				Interest only Modifications				Payment Modifications			Combination Modifications				Total Modifications
Commercial real estate	$	71			$	1,374			$	2,870			$	—		$	10,503			$	14,818
Commercial construction	—				1,897				663				—			2,238				4,798
Commercial and industrial	—				31				—				—			290				321
Residential mortgage	—				—				2,679				829			2,726				6,234
Consumer and other	—				—				11				—			—				11
Total modifications	$	71			$	3,302			$	6,223			$	829		$	15,757			$	26,182
The following tables summarize the period-end balance for loans modified and classified as TDRs in the previous 12 months for which a payment default has occurred during the years ended December 31, 2013 and 2012 (dollars in thousands). The Company defines payment default as movement of the restructuring to nonaccrual status, foreclosure or charge-off, whichever occurs first.
	2013
Commercial real estate	$	5,906
Commercial construction	29
Commercial and industrial	630
Residential mortgage	668
	2012
Commercial real estate	$	337
Residential mortgage	1,438
Loans held for sale
The Company originates certain single family, residential first mortgage loans for sale on a presold basis. Loan sale activity for the years ended December 31, 2013, 2012 and 2011 is summarized below (dollars in thousands):
	2013				2012				2011
Loans held for sale	$	30,899			$	57,414			$	9,596
Proceeds from sales of loans held for sale	352,130				233,276				91,942
Mortgage fees	8,979				6,169				2,230

FDIC_Indemnification_Asset

FDIC Indemnification Asset	12 Months Ended
	Dec. 31, 2013
FDIC Indemnification Asset [Abstract]	'
FDIC Indemnification Asset	'
	FDIC INDEMNIFICATION ASSET
	The Company has recorded an indemnification asset related to loss-share agreements entered into with the FDIC wherein the FDIC will reimburse the Company for certain amounts related to certain acquired loans and other real estate owned should the Company experience a loss. Under the loss sharing arrangements, the FDIC has agreed to absorb 80% of all future losses and workout expenses on these assets which occur prior to the expiration of the loss sharing agreements. The Company entered into the respective loss-share agreements with the acquisition of Beach First National Bank (“Beach First”) and Blue Ridge Savings Bank (“Blue Ridge”).
	Each loss-sharing arrangement consists of one single family residential mortgage loan agreement and one commercial and other loans and other real estate owned agreement. The single family residential mortgage loan loss-share agreements provide for FDIC loss sharing and reimbursement for recoveries to the FDIC for ten years from April 9, 2010 and October 14, 2011 for the purchases of Beach First and Blue Ridge, respectively, and reimbursement to the FDIC for ten years from these dates. The commercial and other loan and other real estate owned loss-share agreements provide for FDIC loss-sharing for five years from the above stated dates, and reimbursement to the FDIC for eight years from the above dates.
	The following tables present activity for the FDIC indemnification asset for the years ended December 31, 2013 and 2012 (dollars in thousands):
		2013			2012
	Balance at beginning of period	$	53,519		$	91,851
	Accretion of present value discount, net	192			1,391
	Post-acquisition adjustments	(2,248		)	20,493
	Receipt of payments from FDIC	(34,577		)	(60,216		)
	Balance at end of period	$	16,886		$	53,519
	The FDIC indemnification asset is measured separately from the related covered assets and is initially recorded at fair value. The fair value was estimated using projected cash flows related to the loss-share agreements based on the expected reimbursements for losses and the applicable loss-share percentages. Cash flow projections are reviewed and updated prospectively as loss estimates related to both covered loans and covered OREO change.

Premises_and_Equipment

Premises and Equipment	12 Months Ended
	Dec. 31, 2013
Property, Plant and Equipment [Abstract]	'
Premises and Equipment	'
	PREMISES AND EQUIPMENT
	The following tables present a summary of the Company’s premises and equipment at December 31, 2013 and 2012 (dollars in thousands):
		2013			2012
	Land	$	23,264		$	20,116
	Buildings and leasehold improvements	49,689			42,584
	Furniture, fixtures and equipment	20,290			16,654
	Construction in progress	178			474
	Premises and equipment, gross	93,421			79,828
	Less accumulated depreciation and amortization	(17,295		)	(13,213		)
	Premises and equipment, net	$	76,126		$	66,615
	Depreciation and amortization expense for the years ended December 31, 2013, 2012 and 2011 amounted to $4.2 million, $3.0 million and $2.3 million, respectively.
	The Company has entered into various non-cancellable operating leases for land and buildings used in its operations that expire at various dates through 2029. Most of the leases contain renewal options. Certain leases provide for periodic rate negotiation or escalation. The leases generally provide for payment of property taxes, insurance and maintenance costs by the Company. Rental expense, including month-to-month leases, reported in non-interest expense was $3.1 million, $2.4 million, and $2.0 million for the years ended December 31, 2013, 2012 and 2011, respectively.
	At December 31, 2013, future minimum rental commitments under non-cancellable operating leases that have a remaining life in excess of one year are as follows (dollars in thousands):
	2014	$	2,776
	2015	2,432
	2016	2,190
	2017	1,988
	2018	1,861
	Thereafter	5,421
	Total	$	16,668

Derivatives

Derivatives	12 Months Ended
	Dec. 31, 2013
Derivative Instruments and Hedging Activities Disclosure [Abstract]	'
Derivatives	'
	DERIVATIVES
	The Company utilizes derivative financial instruments primarily to hedge its exposure to changes in interest rates. All derivative financial instruments are recorded on the balance sheet at their respective fair values. The Company does not use financial instruments or derivatives for any trading or other speculative purposes.
	The primary focus of the Company’s asset/liability management program is to monitor the sensitivity of the Company’s net portfolio value and net income under varying interest rate scenarios to take steps to control its risks. On a quarterly basis, the Company simulates the net portfolio value and net income expected to be earned over a twelve-month period following the date of simulation. The simulation is based on a projection of market interest rates at varying levels and estimates the impact of such market rates on the levels of interest-earning assets and interest-bearing liabilities during the measurement period. Based upon the outcome of the simulation analysis, the Company considers the use of derivatives as a means of reducing the volatility of net portfolio value and projected net income within certain ranges of projected changes in interest rates. The Company evaluates the effectiveness of entering into any derivative instrument agreement by measuring the cost of such an agreement in relation to the reduction in net portfolio value and net income volatility within an assumed range of interest rates. The Company also has derivatives that are a result of a service it provides to certain qualifying customers, which includes a matched book of derivative instruments offered to customers in order to minimize their interest rate risk.
	Derivatives Designated as Cash Flow Hedges of Interest Rate Risk
	The Company has variable rate funding which creates exposure to variability in interest payments due to changes in interest rates. During the first quarter of 2009, the Company entered into a five-year interest rate derivative contract, with a notional amount of $250 million, to offset the effects of interest rate changes on an unsecured $250 million variable rate money market funding arrangement. The maturity date of this interest rate cap is February 16, 2014.
	In March 2013, the Company entered into a forward-starting interest rate swap transaction with a notional amount of $125 million to effectively convert $125 million of its variable-rate money market funding arrangement to fixed interest rate debt as of the forward-starting date of the swap transaction. The effective date of this interest rate swap is September 16, 2014 and the termination date is March 18, 2019. The swap transaction was designated as a cash flow hedge of the changes in cash flows attributable to changes in one-month LIBOR, the benchmark interest rate being hedged, associated with the interest payments made on the first $125 million of the Company's variable rate money market funding arrangement, which are indexed to one-month LIBOR.
	Derivatives Not Designated as Hedges
	The Company utilizes derivative financial instruments, including interest rate swaps, caps and/or floors, as part of its ongoing efforts to mitigate its interest rate risk exposure and to help its commercial customers manage their exposure to interest rate fluctuations. To mitigate the interest rate risk associated with these customer contracts, the Company enters into an offsetting derivative contract position. These derivative positions are recorded at fair value on the Company’s consolidated balance sheet and, due to the matched nature of these derivative instruments, changes in fair value do not impact the Company’s earnings. At December 31, 2013 and 2012, the Company had notional amounts of $31.2 million and $18.0 million, respectively, on interest rate contracts with corporate customers and in offsetting interest rate contracts with another financial institution to mitigate the Company’s rate exposure on its corporate customers’ contracts.
	The following tables present the fair value of the Company’s derivatives at December 31, 2013 and 2012 (dollars in thousands):
		December 31, 2013								December 31, 2012
		Notional Amount		Balance Sheet Location		Fair Value				Notional Amount				Balance Sheet Location	Fair Value
	Derivative assets:
	Derivatives designated as hedging instruments:
	Interest rate cap	$	250,000	Other assets		$	—			$	250,000			Other assets	$	40
	Interest rate swap	125,000		Other assets		2,744				—				Other assets	—
		$	375,000			$	2,744			$	250,000				$	40
	Derivatives not designated as hedging instruments:
	Interest rate swaps	$	27,965	Other assets		$	424			$	11,499			Other assets	$	672
	Interest rate cap/floor	3,256		Other assets		98				6,524				Other assets	330
		$	31,221			$	522			$	18,023				$	1,002
	Derivative liabilities:
	Derivatives not designated as hedging instruments:
	Interest rate swaps	$	31,221	Accrued expenses and other liabilities		$	522			$	18,023			Accrued expenses and other liabilities	$	1,002
	The derivative instruments held by the Company are subject to master netting arrangements which contain a legally enforceable right to offset recognized amounts and settle such amounts on a net basis. The Company has elected to present the financial assets and financial liabilities associated with these arrangements on a gross basis in the Consolidated Balance Sheets. Cash collateral is posted by the counterparty with net liability positions in accordance with contract thresholds.
	Information about financial instruments that are eligible for offset in the consolidated balance sheet at December 31, 2013 and 2012 is presented in the following tables (dollar amounts in thousands):
												Gross Amounts Not Offset in the
												Consolidated Balance Sheets
		Gross Amount Recognized		Gross Amounts Offset in the				Net Amounts				Financial Instruments			Collateral Held/Pledged		Net
				Consolidated Balance Sheets				Presented in the
								Consolidated Balance Sheets
	December 31, 2013
	Derivative assets	$	3,266	$	—			$	3,266			$	—		$	930	$	2,336
	Derivative liabilities	522		—				522				—			522		—
	Total derivative instruments	$	3,788	$	—			$	3,788			$	—		$	1,452	$	2,336
	December 31, 2012
	Derivative assets	$	1,042	$	—			$	1,042			$	—		$	—	$	1,042
	Derivative liabilities	1,002		—				1,002				—			1,002		—
	Total derivative instruments	$	2,044	$	—			$	2,044			$	—		$	1,002	$	1,042
	The Company has recorded a net gain of $1.4 million, net of tax, as accumulated other comprehensive income at December 31, 2013 associated with cash flow hedging instruments and expects a net loss of $0.3 million, net of tax, to be reclassified into earnings within the next 12 months. The following tables present the losses recorded in the Consolidated Statements of Income and Consolidated Statements of Comprehensive Income, respectively, relating to derivative instruments designated as cash flow hedges for the years ended December 31, 2013, 2012 and 2011 (dollars in thousands, net of tax):
		2013		2012				2011
	Derivatives designated as hedging instruments:
	Amount of net gain (losses) recorded in OCI (effective portion)	$	1,662	$	(364	)		$	(3,304	)
	Amount of net losses reclassified from OCI to earnings (1)	6,103		4,878				3,146
	(1) Amount recorded in interest expense on demand deposits in the Consolidated Statements of Income
	The amounts included in accumulated other comprehensive income will be reclassified to interest expense should the hedges no longer be considered effective. No amount of ineffectiveness was included in net income for the years ended December 31, 2013, 2012 and 2011. The Company will continue to assess the effectiveness of the hedges on a quarterly basis.
	Counterparty Credit Risk - By entering into derivative instrument contracts, the Company exposes itself, from time to time, to counterparty credit risk. Counterparty credit risk is the failure of the counterparty to perform under the terms of the derivative contract. When the fair value of a derivative contract is in an asset position, the counterparty has a liability to the Company, which creates credit risk for the Company. The Company attempts to minimize this risk by selecting counterparties with investment grade credit ratings, limiting its exposure to any single counterparty and regularly monitoring its market position with each counterparty.
	Credit-Risk Related Contingent Features – The Company’s derivative instruments contain provisions allowing the financial institution counterparty to terminate the contracts in certain circumstances, such as a default by the Company on its indebtedness or the failure to maintain its regulatory status as a well-capitalized institution. These derivative agreements also contain provisions regarding the posting of collateral by each party. As of December 31, 2013, the aggregate fair value of derivative instruments with credit-risk-related contingent features that were in a net liability position was $0.5 million, for which the Company has posted collateral of $1.2 million.

Goodwill_and_Other_Intangibles

Goodwill and Other Intangibles	12 Months Ended
	Dec. 31, 2013
Goodwill and Intangible Assets Disclosure [Abstract]	'
Goodwill and Other Intangibles	'
	GOODWILL AND OTHER INTANGIBLES
	The following tables present activity for goodwill and other intangible assets for the years ended December 31, 2013 and 2012 (dollars in thousands):
		Goodwill			Other Intangibles			Total
	Balance at December 31, 2011	$	26,129		$	2,986		$	29,115
	Acquisitions	982			2,663			3,645
	Amortization	—			(567		)	(567		)
	Balance at December 31, 2012	$	27,111		$	5,082		$	32,193
	Acquisitions	1,273			2,676			3,949
	Amortization	—			(1,176		)	(1,176		)
	Balance at December 31, 2013	28,384			6,582			34,966
	During the years ended December 31, 2013, 2012 and 2011, the Company recorded amortization expense of $1.2 million, $0.6 million and $0.4 million, respectively, related to other intangible assets. At December 31, 2013, the weighted-average remaining life of core deposit intangibles was 5.6 years.
	The Company performed the annual impairment test of goodwill as of June 30, 2013. The annual impairment test indicated that the estimated fair value exceeded the carrying value (including goodwill) for the Company’s reporting unit. Therefore, a step two analysis was not required and no impairment charge was recorded.
	The following tables present the gross carrying amount and accumulated amortization at December 31, 2013 and 2012 for the Company’s core deposit intangible assets, which are the only identifiable intangible assets subject to amortization (dollars in thousands):
		2013			2012
	Gross carrying amount	$	9,914		$	7,238
	Accumulated amortization	(3,332		)	(2,156		)
	Net book value	$	6,582		$	5,082
	The following table presents estimated future amortization expense for other intangible assets (dollars in thousands):
	2014	$	1,438
	2015	1,263
	2016	1,112
	2017	974
	2018	974
	Thereafter	821
	Total	$	6,582

Deposits

Deposits	12 Months Ended
	Dec. 31, 2013
Deposits [Abstract]	'
Deposits	'
	DEPOSITS
	The following tables present the scheduled maturities of time deposits at December 31, 2013 (dollars in thousands):
		Less than $100,000		$100,000 and Greater		Total
	2014	$	217,752	$	601,819	$	819,571
	2015	29,862		101,304		131,166
	2016	7,535		64,608		72,143
	2017	12,083		25,719		37,802
	2018	2,634		11,901		14,535
	Thereafter	1,722		5,860		7,582
	Total	$	271,588	$	811,211	$	1,082,799

ShortTerm_Borrowings

Short-Term Borrowings	12 Months Ended
	Dec. 31, 2013
Short-term Debt [Abstract]	'
Short-Term Borrowings	'
	SHORT-TERM BORROWINGS
	The following table presents the Company’s short-term borrowings at December 31, 2013 and 2012 (dollars in thousands):
		2013			2012
	Repurchase agreements	$	27,202		$	30,332
	Advances from FHLB	97,300			2,000
	Federal funds purchased	1,090			50
	Total short-term borrowings	$	125,592		$	32,382
	Securities sold under agreements to repurchase generally mature within one day from the transaction date and are collateralized by either U.S. Government Agency obligations, government sponsored mortgage-backed securities or securities issued by local governmental municipalities.
	The Company may purchase federal funds through unsecured federal funds lines of credit totaling $55.0 million at December 31, 2013. These lines are intended for short-term borrowings and are subject to restrictions limiting the frequency and terms of advances. These lines of credit are payable on demand and bear interest based upon the daily federal funds rate.
	In addition, the Company has the ability to borrow funds from the Federal Reserve Bank of Richmond utilizing the discount window and the borrower-in-custody of collateral arrangement. At December 31, 2013, investment securities and commercial loans in the amounts of $2.8 million and $188.2 million, respectively, were assigned under these arrangements. At December 31, 2013, the Company had approximately $152.5 million in borrowing capacity available under these arrangements with no outstanding balance due.
	Additional information on the Company’s short-term borrowings at and for the years ended December 31, 2013, 2012 and 2011 is presented in the following table (dollars in thousands):
		2013			2012			2011
	Maximum outstanding at any month-end during the year	$	143,674		$	40,149		$	100,728
	Average outstanding balance	88,635			30,573			49,146
	Average interest rate for the year	0.49		%	1.11		%	0.99		%
	Average interest rate at year end	0.39		%	0.51		%	0.92		%

LongTerm_Debt

Long-Term Debt	12 Months Ended
	Dec. 31, 2013
Debt Instruments [Abstract]	'
Long-term Debt	'
	LONG-TERM DEBT
	The following tables present the Company’s long-term debt at December 31, 2013 and 2012 (dollars in thousands):
		2013				2012
	FHLB advances	$	51,100			$	62,000
	Term loan	28,875				—
	Junior subordinated debentures	23,713				26,173
		103,688				88,173
	Less: FHLB prepayment penalty	2,179				—
	Total	$	101,509			$	88,173
	The following table details the Company's FHLB advances outstanding at December 31, 2013 and 2012 (dollars in thousands):
	Maturity		Interest Rate		2013				2012
	Dec-14		3.62%		$	—			$	2,000
	Dec-14		3.87%		—				15,000
	Jan-15		1.00%		100				—
	Aug-15		2.37%		6,000				—
	Sep-17		3.73%		—				10,000
	Sep-17		3.66%		—				10,000
	Jan-18		2.15%		15,000				15,000
	Jan-18		2.27%		10,000				10,000
	Jan-20		0.47%		10,000				—
	Jan-20		0.47%		10,000				—
	Total				$	51,100			$	62,000
	During the first quarter of 2013, the Company prepaid and restructured $20.0 million in FHLB advances. The early repayment of the debt resulted in a prepayment penalty of $2.7 million, which is being amortized to interest expense in future periods as an adjustment to the cost of the new FHLB advances.
	The above advances have been made against a $381.0 million line of credit secured by real estate loans in the amount of $514.3 million and investment securities with a fair value of $13.9 million as of December 31, 2013. The weighted average rate for paid on FHLB advances for the years ended December 31, 2013 and 2012, respectively, was 2.46% and 3.13%.
	On April 26, 2013, the Company entered into a $30.0 million senior unsecured term loan agreement (the “Term Loan”). The Term Loan currently bears interest at 5.50% and matures on April 26, 2018. The net proceeds from the Term Loan were used to redeem the Company’s Series A Preferred Stock. The term loan contains certain restrictive covenants, none of which is expected to impact capital resources and liquidity. The Company was in compliance with all covenants of this term loan at December 31, 2013.
	The following tables detail the junior subordinated debentures outstanding at December 31, 2013 and 2012 (dollars in thousands):
		Date of issuance		Shares issued		Interest rate		Maturity date
										2013		2012
	BNC Bancorp	9/14/12	-1	2,435		8.00% fixed		6/30/20		$	—	$	2,460
	BNC Bancorp Capital Trust I	4/3/03		5,000		Libor plus 3.25%		4/15/33		5,155		5,155
	BNC Bancorp Capital Trust II	3/11/04		6,000		Libor plus 2.80%		4/7/34		6,186		6,186
	BNC Capital Trust III	9/23/04		5,000		Libor plus 2.40%		9/23/34		5,155		5,155
	BNC Capital Trust IV	9/27/06		7,000		Libor plus 1.70%		12/31/36		7,217		7,217
	Total									$	23,713	$	26,173
	-1	This subordinated debt obligation was assumed in the purchase of KeySource on September 14, 2012. On July 1, 2013, the Company exercised its redemption option on this debenture.
	The junior subordinated debentures issued by BNC are classified as Tier II capital for regulatory purposes. The junior subordinated debentures issued by the trusts currently qualify as Tier I capital for the Company, subject to certain limitations, and constitute a full and unconditional guarantee by the Company of the trust’s obligations under the preferred securities. At December 31, 2013 and 2012, respectively, the Company had $0.7 million of equity investment in the above wholly-owned Capital Trusts and is included in other assets in the accompanying consolidated balance sheets. The weighted average rate for the junior subordinated debentures outstanding for the years ending December 31, 2013 and 2012 was 2.86% and 3.41%, respectively.

Accumulated_Other_Comprehensiv

Accumulated Other Comprehensive Income	12 Months Ended
	Dec. 31, 2013
Accumulated Other Comprehensive Income [Abstract]	'
Accumulated Other Comprehensive Income	'
	ACCUMULATED OTHER COMPREHENSIVE INCOME
	The following tables present the changes in accumulated other comprehensive income, net of taxes, for the years ended December 31, 2013 and 2012 (dollars in thousands):
		Unrealized Holding Gains (Losses) on Available-For-Sale Investment Securities				Unrealized Holding Gains on Investment Securities Transferred from Available-For-Sale to Held-to-Maturity			Unrealized Holding Gains (Losses) on Cash Flow Hedging Activities			Total Accumulated Other Comprehensive Income
	Balance at December 31, 2012	$	8,872			$	2,881		$	(6,324	)	$	5,429
	Other comprehensive income (loss) before reclassifications	(9,625		)		—			1,662			(7,963		)
	Amounts reclassified from accumulated other comprehensive income	26				(289		)	6,103			5,840
	Amounts transferred as a result of the reclassification of securities from available-for-sale to held-to-maturity	(1,219		)		1,219			—			—
	Net current period other comprehensive income (loss)	(10,818		)		930			7,765			(2,123		)
	Balance at December 31, 2013	$	(1,946	)		$	3,811		$	1,441		$	3,306
		Unrealized Holding Gains on Available-For-Sale Investment Securities				Unrealized Holding Gains on Investment Securities Transferred from Available-For-Sale to Held-to-Maturity			Unrealized Holding Losses on Cash Flow Hedging Activities			Total Accumulated Other Comprehensive Income
	Balance at December 31, 2011	$	8,637			$	3,211		$	(10,838	)	$	1,010
	Other comprehensive income (loss) before reclassifications	2,094				—			(364		)	1,730
	Amounts reclassified from accumulated other comprehensive income	(1,859		)		(330		)	4,878			2,689
	Net current period other comprehensive income (loss)	235				(330		)	4,514			4,419
	Balance at December 31, 2012	$	8,872			$	2,881		$	(6,324	)	$	5,429
	The following table details reclassification adjustments from accumulated other comprehensive income for the years ended December 31, 2013 and 2012 (dollars in thousands):
	Component of accumulated other comprehensive income		2013				Affected Line Item in the Consolidated Statement of Income
	Unrealized holding gains - investment securities available-for-sale		$	(42	)		Gain (loss) on sale of investment securities, net
			16				Income tax benefit (expense)
			(26		)		Total, net of tax
	Unrealized holding gains – investment securities transferred from available-for-sale to held-to-maturity (1)		623				Interest income - investment securities
			(334		)		Income tax benefit (expense)
			289				Total, net of tax
	Unrealized holding losses – cash flow hedge instruments		(9,863		)		Interest expense - demand deposits
			3,760				Income tax benefit (expense)
			(6,103		)		Total, net of tax
	Total reclassifications for the period		$	(5,840	)		Total, net of tax
	Component of accumulated other comprehensive income		2012				Affected Line Item in the Consolidated Statement of Income
	Unrealized holding gains – investment securities available-for-sale		$	3,026			Gain (loss) on sale of investment securities, net
			(1,167		)		Income tax benefit (expense)
			1,859				Total, net of tax
	Unrealized holding gains – investment securities transferred from available-for-sale to held-to-maturity (1)		538				Interest income - investment securities
			(208		)		Income tax benefit (expense)
			330				Total, net of tax
	Unrealized holding losses – cash flow hedge instruments		(7,940		)		Interest expense - demand deposits
			3,062				Income tax benefit (expense)
			(4,878		)		Total, net of tax
	Total reclassifications for the period		$	(2,689	)		Total, net of tax
	-1	The amortization of the unrealized holding gains in accumulated other comprehensive income at the date of transfer partially offsets the amortization of the difference between the par value and fair value of the investment securities at the date of transfer. Both components are amortized as an adjustment of yield.

Fair_Value_Measurements

Fair Value Measurements	12 Months Ended
	Dec. 31, 2013
Fair Value Disclosures [Abstract]	'
Fair Value Measurements	'
	FAIR VALUE MEASUREMENT
	ASC Topic 820, Fair Value Measurements and Disclosures, establishes a framework for measuring fair value, establishes a three-level valuation hierarchy for disclosure of fair value measurement and enhances disclosure requirements for fair value measurements. The valuation hierarchy is based upon the transparency of inputs to the valuation of an asset or liability as of the measurement date. The three levels of valuations are defined as follows:
	Level 1 – Inputs to the valuation methodology are quoted prices (unadjusted) for identical assets or liabilities in active markets.
	Level 2 – Inputs to the valuation methodology include quoted prices for similar assets and liabilities in active markets, and inputs that are observable for the asset or liability, either directly or indirectly, for substantially the full term of the financial instrument.
	Level 3 – Inputs to the valuation methodology are unobservable and significant to the fair value measurement, and require significant management judgment or estimation using pricing models, discounted cash flow methodologies or similar techniques.
	Fair Value on a Recurring Basis – The Company measures certain assets at fair value on a recurring basis and the following is a general description of the methods used to value such assets.
	Investment Securities Available-for-Sale – The fair value of our investment in equity securities available-for-sale is determined by observing quoted prices in an active market for identical securities. As such, the Company classifies these securities as Level 1 valuation. The fair value of the remainder of our investment securities available-for-sale are determined by a third-party pricing service. The valuations provided by the third-party pricing service are based on observable market inputs, which include benchmark yields, reported trades, issuer spreads, benchmark securities, bids, offers and reference data obtained from market research publications. The valuation of mortgage-backed securities also includes new issue data, monthly payment information and “To Be Announced” prices. The valuation of state and municipal securities also include the use of material event notices. We review the prices supplied by the independent pricing service, as well as their underlying pricing methodologies, for reasonableness. At least annually, we will validate prices supplied by the independent pricing service by comparing to prices obtained from a second third-party source. The Company classifies these investment securities as Level 2 valuation.
	Derivative Assets and Liabilities – The values of derivative instruments held or issued by the Company for risk management purposes are traded in over-the-counter markets where quoted market prices are not readily available. For those derivatives, the Company measures fair value using models that use primarily market observable inputs, such as yield curves and option volatilities, and include the value associated with counterparty credit risk. The Company classifies derivative instruments as Level 2 valuation.
	The following tables present information about certain assets and liabilities measured at fair value on a recurring basis at December 31, 2013 and 2012 (dollars in thousands):
			Total Measured at Fair Value			Fair Value Measured Using
	Description					Level 1				Level 2			Level 3
	December 31, 2013
	Assets:
	Investment securities available-for-sale:
	U.S. Government agencies		$	15,061		$	—			$	15,061		$	—
	State and municipals		191,263			—				191,263			—
	Corporate debt securities		8,889			—				8,889			—
	Other debt securities		4,380			—				4,380			—
	Equity securities		922			922				—			—
	Mortgage-backed securities:
	Residential government sponsored		42,014			—				42,014			—
	Other government sponsored		7,888			—				7,888			—
	Total investment securities available-for-sale		270,417			922				269,495			—
	Derivative instruments:
	Interest rate swap - cash flow hedge		2,744			—				2,744			—
	Interest rate cap - cash flow hedge		—			—				—			—
	Interest rate swap - not designated		424			—				424			—
	Interest rate cap/floor - not designated		98			—				98			—
	Total derivative instruments		3,266			—				3,266			—
	Total assets measured at fair value on a recurring basis		$	273,683		$	922			$	272,761		$	—
	Liabilities:
	Interest rate swap - not designated		$	522		$	—			$	522		$	—
	Total liabilities measured at fair value on a recurring basis		$	522		$	—			$	522		$	—
			Total Measured at Fair Value			Fair Value Measured Using
	Description					Level 1				Level 2			Level 3
	December 31, 2012
	Assets:
	Investment securities available-for-sale:
	U.S. Government agencies		$	16,395		$	—			$	16,395		$	—
	State and municipals		223,886			—				223,886			—
	Mortgage-backed securities:
	Residential government sponsored		86,890			—				86,890			—
	Other government sponsored		14,368			—				14,368			—
	Total investment securities available-for-sale		341,539			—				341,539			—
	Derivative instruments:
	Interest rate cap - cash flow hedge		40			—				40			—
	Interest rate swap - not designated		672			—				672			—
	Interest rate cap/floor - not designated		330			—				330			—
	Total derivative instruments		1,042			—				1,042			—
	Total assets measured at fair value on a recurring basis		$	342,581		$	—			$	342,581		$	—
	Liabilities:
	Interest rate swap - not designated		$	1,002		$	—			$	1,002		$	—
	Total liabilities measured at fair value on a recurring basis		$	1,002		$	—			$	1,002		$	—
	Fair Value on a Nonrecurring Basis – The Company measures certain assets at fair value on a nonrecurring basis and the following is a general description of the methods used to value such assets.
	Loans Held for Sale – Loans held for sale are carried at the lower of cost or market value. The fair value of loans held for sale is based on what secondary markets are currently offering for portfolios with similar characteristics. As such, the Company classifies loans subjected to nonrecurring fair value adjustments as Level 2 valuation.
	Impaired Loans – The Company considers a loan impaired when it is probable that the Company will be unable to collect all amounts due according to the original contractual terms of the note agreement, including both principal and interest. Management has determined that nonaccrual loans and loans that have had their terms restructured in a troubled debt restructuring meet this impaired loan definition. For individually evaluated impaired loans, the amount of impairment is based upon the present value of expected future cash flows discounted at the loan’s effective interest rate or the estimated fair value of the underlying collateral for collateral-dependent loans, which the Company classifies as a Level 3 valuation.
	Other Real Estate Owned – Other real estate owned is initially recorded 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, which the Company classifies as a Level 3 valuation.
	The following tables present information about certain assets and liabilities measured at fair value on a nonrecurring basis at December 31, 2013 and 2012 (dollars in thousands):
			Total Measured at Fair Value			Fair Value Measured Using
	Description					Level 1				Level 2			Level 3
	December 31, 2013
	Loans held for sale		$	30,899		$	—			$	30,899		$	—
	Impaired loans		228,736			—				—			228,736
Other real estate owned		47,606			—				—			47,606
Total assets measured at fair value on a nonrecurring basis		$	307,241		$	—			$	30,899		$	276,342
December 31, 2012
Loans held for sale		$	57,414		$	—			$	57,414		$	—
Impaired loans		290,085			—				—			290,085
Other real estate owned		51,913			—				—			51,913
Total assets measured at fair value on a nonrecurring basis		$	399,412		$	—			$	57,414		$	341,998
The following table presents the valuation and unobservable inputs for Level 3 assets and liabilities measured at fair value on a nonrecurring basis at December 31, 2013 (dollars in thousands):
Description		Fair Value			Valuation Methodology		Unobservable Inputs		Range of Inputs
Impaired loans		$	228,736		Appraised value		Discount to reflect current market conditions and ultimate collectability		0% - 20%
Other real estate owned		$	47,606		Appraised value		Discount to reflect current market conditions		0% - 20%
Estimated fair values of financial instruments have been estimated by the Company using the provisions of ASC Topic 825, Financial Instruments (“ASC 825”), which requires disclosure of fair value information about financial instruments, whether or not recognized in the balance sheet, for which it is practicable to estimate that value. In cases where quoted market prices are not available, fair values are based on estimates using present value or other valuation techniques.
Those techniques are significantly affected by the assumptions used, including the discount rate and estimates of future cash flows. In that regard, the derived fair value estimates cannot be substantiated by comparison to independent markets and, in many cases, could not be realized in immediate settlement of the instruments. ASC 825 excludes certain financial instruments and all nonfinancial instruments from its disclosure requirements. Accordingly, the aggregate fair value amounts presented do not represent the underlying value of the Company.
The following tables present the carrying value and estimated fair values of the Company’s financial instruments, including those that are not measured and reported at fair value on a recurring basis or nonrecurring basis, at December 31, 2013 and 2012 (dollars in thousands):
31-Dec-13	Carrying Value			Fair Value				Level 1			Level 2			Level 3
Financial assets:
Cash and cash equivalents	$	108,390		$	108,390			$	108,390		$	—		$	—
Investment securities available-for-sale	270,417			270,417				—			270,417			—
Investment securities held-to-maturity	247,378			236,507				—			236,507			—
Federal Home Loan Bank stock	10,720			10,720				—			10,720			—
Loans held for sale	30,899			30,899				—			30,899			—
Loans receivable, net	2,243,642			2,266,455				—			2,037,719			228,736
Accrued interest receivable	12,955			12,955				—			12,955			—
FDIC indemnification asset	16,886			16,886				—			—			16,886
Investment in bank-owned life insurance	78,439			78,439				—			78,439			—
Interest rate swap derivative - cash flow hedge	2,744			2,744				—			2,744			—
Interest rate cap derivative - cash flow hedge	—			—				—			—			—
Interest rate swap derivative - not designated	424			424				—			424			—
Interest rate cap/floor derivative - not designated	98			98				—			98			—
Financial liabilities:
Demand deposits and savings	$	1,623,931		$	1,623,931			$	—		$	1,623,931		$	—
Time deposits	1,082,799			1,087,333				—			1,087,333			—
Short-term borrowings	125,592			126,126				—			126,126			—
Long-term debt	101,509			97,983				—			97,983			—
Accrued interest payable	1,434			1,434				—			1,434			—
Interest rate swap derivative - not designated	522			522				—			522			—
31-Dec-12	Carrying Value			Fair Value				Level 1			Level 2			Level 3
Financial assets:
Cash and cash equivalents	$	234,071		$	234,071			$	234,071		$	—		$	—
Investment securities available-for-sale	341,539			341,539				—			341,539			—
Investment securities held-to-maturity	114,805			118,235				—			118,235			—
Federal Home Loan Bank stock	7,604			7,604				—			7,604			—
Loans held for sale	57,414			57,414				—			57,414			—
Loans receivable, net	1,994,966			1,976,745				—			1,686,660			290,085
Accrued interest receivable	11,363			11,363				—			11,363			—
FDIC indemnification asset	53,519			53,519				—			—			53,519
Investment in bank-owned life insurance	70,756			70,756				—			70,756			—
Interest rate cap derivative - cash flow hedge	40			40				—			40			—
Interest rate swap derivative - not designated	672			672				—			672			—
Interest rate cap/floor derivative - not designated	330			330				—			330			—
Financial liabilities:
Demand deposits and savings	$	1,496,694		$	1,496,694			$	—		$	1,496,694		$	—
Time deposits	1,159,615			1,170,560				—			1,170,560			—
Short-term borrowings	32,382			32,382				—			32,382			—
Long-term debt	88,173			83,292				—			83,292			—
Accrued interest payable	2,158			2,158				—			2,158			—
Interest rate swap derivative - not designated	1,002			1,002				—			1,002			—
The following methods and assumptions were used to estimate the fair value of financial instruments that have not been previously discussed:
Cash and cash equivalents - The carrying amounts reported in the balance sheets for cash and cash equivalents approximate the fair value of those assets.
Investment securities held-to-maturity - The fair value of our investment securities held-to-maturity are determined by a third-party pricing service. The valuations provided by the third-party pricing service for state and municipal securities are based on observable market inputs, which include benchmark yields, reported trades, issuer spreads, benchmark securities, bids, offers and the use of material event notices.
We review the prices supplied by the independent pricing service, as well as their underlying pricing methodologies, for reasonableness. At least annually, we will validate prices supplied by the independent pricing service by comparing to prices obtained from a second third-party source.
Federal home loan bank stock - The fair value for FHLB stock is its carrying value, since this is the amount for which it could be redeemed. There is no active market for this stock and the Company, in order to be a member of the FHLB, is required to maintain a minimum investment.
Loans receivable, net - The fair values for loans are estimated using discounted cash flow analyses using interest rates currently being offered for loans with similar terms and credit ratings for the same remaining maturities, adjusted for the allowance for loan losses.
FDIC indemnification asset - The fair value for the FDIC indemnification asset is estimated based on discounted future cash flows using current discount rates.
Investment in bank-owned life insurance - The carrying value of life insurance approximates fair value because this investment is carried at cash surrender value, as determined by the insurer.
Accrued interest receivable and accrued interest payable - The carrying amount of accrued interest is assumed to approximate fair value.
Deposits - The fair values disclosed for deposits with no stated maturity (e.g., interest and non-interest checking, passbook savings, and certain types of money market accounts) are, by definition, equal to the amount payable on demand at the reporting date (i.e., their carrying amounts). Fair values for deposits with a stated maturity date (time deposits) are estimated using a discounted cash flow calculation that applies interest rates currently being offered on these accounts to a schedule of aggregated expected monthly maturities on time deposits.
Short-term borrowings - The carrying amount of short-term borrowings is assumed to approximate fair value.
Long-term debt – The fair value is estimated by discounting the future contractual cash flows using current market interest rates for similar debt over the same remaining term.

Regulatory_Capital

Regulatory Capital	12 Months Ended
	Dec. 31, 2013
Banking and Thrift [Abstract]	'
Regulatory Capital Requirements	'
	REGULATORY CAPITAL REQUIREMENTS
	BNC, as a North Carolina banking corporation, may pay cash dividends to the Company only out of undivided profits as determined pursuant to North Carolina General Statutes Section 53-87. However, regulatory authorities may limit payment of dividends by any bank when it is determined that such a limitation is in the public interest and is necessary to ensure financial soundness of the bank.
	The Parent Company and BNC are subject to various regulatory capital requirements administered by the federal banking agencies. Failure to meet minimum capital requirements can initiate certain mandatory - and possibly additional discretionary - actions by regulators that, if undertaken, could have a material adverse effect on the Company’s consolidated financial statements. Capital adequacy guidelines and the regulatory framework for prompt corrective action prescribe specific capital guidelines that involve quantitative measures of BNC’s assets, liabilities, and certain off-balance sheet items as calculated under regulatory accounting practices. BNC’s capital amounts and classification are also subject to qualitative judgments by the regulators about components, risk weightings, and other factors. As of December 31, 2013, the most recent notification from the FDIC categorized BNC as well capitalized under the regulatory framework for prompt corrective action. To be categorized as well capitalized BNC must maintain minimum amounts and ratios, as set forth in the table below. There are no conditions or events since that notification that management believes have changed BNC’s category. Prompt corrective action provisions are not applicable to bank holding companies.
	Quantitative measures established by regulation to ensure capital adequacy require the Parent Company and BNC to maintain minimum amounts and ratios, as prescribed by regulations, of total and Tier I capital to risk-weighted assets and of Tier I capital to average assets. The following tables present BNC’s regulatory capital ratios at December 31, 2013 and 2012 (dollars in thousands):
									For capital adequacy purposes				To be well capitalized under prompt corrective action provisions
			Actual						Minimum				Minimum
	31-Dec-13		Amount				Ratio		Amount		Ratio		Amount		Ratio
	Total capital (to risk weighted assets)		$	313,624			12.66	%	$	198,187	8	%	$	247,734	10	%
	Tier 1 capital (to risk weighted assets)		282,634				11.41	%	99,094		4	%	148,640		6	%
	Tier 1 capital (to average assets)		282,634				8.96	%	126,118		4	%	157,647		5	%
									For capital adequacy purposes				To be well capitalized under prompt corrective action provisions
			Actual						Minimum				Minimum
	31-Dec-12		Amount				Ratio		Amount		Ratio		Amount		Ratio
	Total capital (to risk weighted assets)		$	293,244			13.91	%	$	168,705	8	%	$	210,882	10	%
	Tier 1 capital (to risk weighted assets)		269,192				12.77	%	84,353		4	%	126,529		6	%
	Tier 1 capital (to average assets)		269,192				9.71	%	110,900		4	%	138,625		5	%
	The Company is also subject to these capital requirements. The following table presents the Company’s regulatory capital ratios at December 31, 2013 and 2012:
		2013			2012
	Total capital (to risk-weighted assets)	11.57	%		13.8	%
	Tier 1 capital (to risk-weighted assets)	10.33	%		12.67	%
	Tier 1 capital (to average assets)	8.12	%		9.65	%

Income_Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2013
Income Tax Disclosure [Abstract]	'
Income Taxes	'
	INCOME TAXES
	The following tables present the Company’s income tax expense (benefit) for the years ended December 31, 2013, 2012 and 2011 (dollars in thousands):
		2013			2012			2011
	Current income tax provision:
	Federal	$	(314	)	$	(140	)	$	581
	State	554			350			742
	Total current income tax provision	240			210			1,323
	Deferred income tax provision (benefit):
	Federal	2,382			(2,244		)	(2,821		)
	State	1,423			334			(285		)
	Total deferred income tax provision (benefit)	3,805			(1,910		)	(3,106		)
	Total income tax provision (benefit)	$	4,045		$	(1,700	)	$	(1,783	)
	The following tables present the difference between income tax expense (benefit) and the amount computed by applying the statutory income tax rate for the years ended December 31, 2013, 2012 and 2011 (dollars in thousands):
		2013			2012			2011
	Tax at statutory federal tax rate	$	7,239		$	2,976		$	1,750
	State income tax, net of federal benefit	1,304			451			301
	Tax exempt interest income	(4,008		)	(3,241		)	(3,306		)
	Income from life insurance	(789		)	(601		)	(546		)
	Gain on acquisition	—			(1,690		)	—
	Other	299			405			18
	Total income tax provision (benefit)	$	4,045		$	(1,700	)	$	(1,783	)
	Significant components of deferred tax assets and liabilities at December 31, 2013 and 2012 were as follows (dollars in thousands):
		2013			2012
	Deferred income tax assets:
	Allowance for loan losses	$	10,660		$	10,841
	Net operating loss carryforwards	10,593			6,975
	Deferred compensation	2,203			2,112
	Unrealized loss on interest rate cap	—			3,662
	Other real estate owned writedowns	3,536			3,481
	AMT credit carryforward	3,488			3,323
	Interest on nonaccrual loans	110			113
	Stock-based compensation	546			522
	Fair value adjustments from acquisitions	6,273			8,672
	Other	1,089			922
	Total deferred income tax assets	38,498			40,623
	Deferred income tax liabilities:
	Premises and equipment	2,978			1,932
	Leasing activities	702			486
	Unrealized gains on investment securities and derivatives	2,235			7,373
	Loan costs	979			—
	Core deposit intangibles	2,306			1,755
	FDIC acquisitions	4,424			7,494
	Other	1,554			1,934
	Total deferred income tax liabilities	15,178			20,974
	Less valuation allowance	360			—
	Net deferred income tax asset	$	22,960		$	19,649
	The valuation allowance of $0.4 million at December 31, 2013 relates to the Randolph acquisition net operating loss carryforwards for which realizability is uncertain.
	The Company adjusted its net deferred income tax asset as a result of reductions in the North Carolina corporate income tax rate, which was enacted July 23. 2013 and will reduce the state income tax rate to 6% effective January 1, 2014 and to 5% effective January 1, 2015. The lower corporate income tax rate resulted in the reduction in the net deferred income tax asset at December 31, 2013 and an increase in current period income tax expense for the year ended December 31, 2013.
	In assessing the realizability of the Company's deferred income tax asset, the Company considered whether it is more likely than not that some portion or all of the deferred income tax asset will not be realized in accordance with the guidance provided by ASC 740. The ultimate realization of deferred income tax assets is dependent upon the generation of future taxable income during periods in which those temporary differences become deductible. The Company considers the scheduled reversal of deferred income tax liabilities, projected future taxable income and tax planning strategies in making this assessment. Based on the weight of available evidence, the Company determined that it is more likely than not that it will be able to realize the benefits of the deferred income tax asset, net of valuation allowance, at December 31, 2013.
	At December 31, 2013, the Company had net operating loss and other carryforwards of approximately $28.9 million available to offset future taxable income, expiring in 2030.
	When tax returns are filed, it is highly certain that some positions taken would be sustained upon examination by the taxing authorities, while others are subject to uncertainty about the merits of the position taken or the amount of the position that would be ultimately sustained. The benefit of a tax position is recognized in the financial statements in the period during which, based on all available evidence, management believes it is more likely than not that the position will be sustained upon examination, including the resolution of appeals or litigation processes, if any. Tax positions taken are not offset or aggregated with other positions. Tax positions that meet the more-likely-than-not recognition threshold are measured as the largest amount of tax benefit that is more than 50 percent likely of being realized upon settlement with the applicable taxing authority. The portion of the benefits associated with tax positions taken that exceeds the amount measured as described above is reflected as a liability for unrecognized tax benefits in the accompanying consolidated balance sheet along with any associated interest and penalties that would be payable to the taxing authorities upon examination. The Company did not have an accrual for uncertain tax positions at December 31, 2013 or 2012.
	We are subject to routine audits of our tax returns by the Internal Revenue Service and various state taxing authorities. With few exceptions, we are no longer subject to Federal and state income tax examinations by tax authorities for years before 2010. There are no indications of any material adjustments relating to any examination currently being conducted by any taxing authority.

Commitments_and_Contingencies

Commitments and Contingencies	12 Months Ended
	Dec. 31, 2013
Commitments and Contingencies Disclosure [Abstract]	'
Commitment and Contingencies	'
	COMMITMENTS AND CONTINGENCIES
	The Company is a party to financial instruments with off-balance sheet risk in the normal course of business to meet the financing needs of its customers. These financial instruments include commitments to extend credit, unfunded lines of credit, and standby letters of credit. These instruments involve elements of credit risk in excess of amounts recognized in the accompanying consolidated financial statements.
	The Company's risk of loss in the event of nonperformance by the other party to the commitment to extend credit, lines of credit and standby letters of credit is represented by the contractual amount of these instruments. The Company uses the same credit policies in making commitments under such instruments as it does for on-balance sheet instruments. The amount of collateral obtained, if any, is based on management's evaluation of the borrower. Collateral held varies, but may include accounts receivable, inventory, real estate and time deposits with financial institutions. Since many of the commitments are expected to expire without being drawn upon, the total commitment amounts do not necessarily represent cash requirements.
	At December 31, 2013, the Company committed to purchase up to $8.8 million in limited partnership interests of unconsolidated entities, of which $7.5 million was unfunded at December 31, 2013.
	The following tables present the outstanding off-balance sheet financial instruments whose contract amounts represent potential credit risk at December 31, 2013 and 2012 (dollars in thousands):
		2013		2012
	Commitments under unfunded loans and lines of credit	$	377,021	$	272,308
	Letters of credit	7,926		12,172
	Unused credit card lines	4,120		4,536
	Unfunded commitments for unconsolidated investments	7,450		4,000
	The Company is subject in the normal course of business to various pending and threatened legal proceedings in which claims for monetary damages are asserted. Management, after consultation with legal counsel, does not anticipate that the aggregate ultimate liability arising out of litigation pending or threatened against the Company will be material to the Company’s consolidated financial position. On an on-going basis the Company assesses any potential liabilities or contingencies in connection with such legal proceedings. For those matters where it is deemed probable that the Company will incur losses and the amount of the losses can be reasonably estimated, the Company would record an expense and corresponding liability in its consolidated financial statements.
	As a result of the Company’s FDIC-assisted acquisition activity, the Company has pending litigation as a result of the Beach First and Blue Ridge acquisitions and could have potential litigation from the Carolina Federal acquisition. Any resulting losses from these proceedings would be covered by the terms of the FDIC’s loss-share indemnification agreement.

Employee_Benefits

Employee Benefits	12 Months Ended
	Dec. 31, 2013
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	'
Employee Benefits	'
	EMPLOYEE BENEFITS
	In May 2013, the Company’s shareholders approved the BNC Bancorp 2013 Omnibus Stock Incentive Plan (the “2013 Omnibus Plan”). The Compensation Committee of the BNC Bancorp Board of Directors may grant or award eligible participants with stock options, rights to receive restricted shares of common stock, restricted stock units, stock appreciation rights, and other stock-based awards or any combination of awards (collectively referred to herein as “Rights”). As of May 2013, no further awards were to be granted under the previous BNC Bancorp Omnibus Stock Ownership and Long Term Incentive Plan (the “2006 Omnibus Plan”). At December 31, 2013, the Company had 376,764 grants of Rights issued under the 2006 Omnibus Plan. At December 31, 2013, the Company had 54,750 grants of Rights issued and 1,429,325 Rights available for grants or awards under the 2013 Omnibus Plan.
	On September 14, 2012, the Company merged with KeySource and assumed all of the outstanding and unexercised stock options from KeySource’s non-statutory and incentive stock option plans. At December 31, 2013, the Company had 284,219 grants of stock options issued and 35,607 stock options available for issuance related to these plans.
	Stock Option Awards. The fair value of each option award is estimated on the date of grant using the Black-Scholes-Merton option pricing model. The risk-free interest rate is based on the U.S. Treasury rate for the expected life at the time of grant. Volatility is based on the average volatility of the Company based upon previous trading history. The expected life and forfeiture assumptions are based on historical data. Dividend yield is based on the yield at the time of the option grant. There were no grants of options during the years ended December 31, 2013, 2012 and 2011.
	A summary of the Company’s stock option activity for the year ended December 31, 2013 is presented below (dollars in thousands, except per share data):
		Shares		Weighted Average Exercise Price	Weighted Average Remaining Contractual Term	Aggregate Intrinsic Value
	Outstanding at December 31, 2012	436,939		11.32
	Exercised	—		—
	Forfeited or expired	24,602		11
	Outstanding at December 31, 2013	412,337		11.34	3.14	2,392
	Exercisable at December 31, 2013	409,513		11.35	3.12	2,371
	Share options expected to vest	2,824		9.71	6.31	21
	The related compensation expense recognized for stock option awards was $10,000, $69,000 and $14,000 for the years ended December 31, 2013, 2012 and 2011, respectively. Included in the 2012 amount was $55,000 of additional compensation expense related to the excess fair value of the stock options assumed from KeySource. As of December 31, 2013, there was $7,000 of total unrecognized compensation cost related to non-vested stock options granted under the plans. That cost is expected to be recognized over a weighted average period of 0.86 years. For the years ended December 31, 2013, 2012 and 2011, the intrinsic value of stock option exercised was $0, $85,000 and $1,000, respectively, and the grant-date fair value of options vested was $14,000, $326,000 and $14,000, respectively.
	Cash received from stock option exercises under all share-based payment arrangements for the years ended December 31, 2013, 2012 and 2011 was $0, $0.3 million and $0.1 million, respectively. The actual tax benefit realized for income tax deductions from stock option exercises was $0, $17,000 and $0 for the years ended December 31, 2013, 2012 and 2011, respectively.
	Restricted Stock Awards. A summary of the activity of the Company’s non-vested stock awards for the year ended December 31, 2013 is presented below:
		Number of Shares	Weighted Average Grant-Date Fair Value
	31-Dec-12	153,723	7.73
	Granted	250,675	10.29
	Vested	-100,002	8.55
	Forfeited	-1,000	7.95
	31-Dec-13	303,396	9.58
	The Company measures the fair value of restricted shares based on the price of BNC’s common stock on the grant date, and compensation expense is recorded over the vesting period. The related compensation expense recognized for restricted stock awards for the years ended December 31, 2013, 2012 and 2011 was $1.2 million, $0.5 million and $0.4 million, respectively. As of December 31, 2013, there was $2.1 million of total unrecognized compensation cost related to non-vested restricted stock granted under the plans. That cost is expected to be recognized over a weighted average period of 1.46 years. The grant-date fair value of restricted stock grants vested during the years ended December 31, 2013, 2012 and 2011 was $0.9 million, $0.3 million and $0.1 million, respectively.
	Qualified Profit Sharing 401(k) Plan - The Company maintains a qualified profit sharing 401(k) plan for employees 20.5 years of age or over which covers substantially all employees. Under the plan, employees may contribute up to an annual maximum as determined by the Internal Revenue Code. The Company matches 50% of the employee contributions up to 6% of the participant's compensation. The plan provides that employees' contributions are 100% vested at all times, and the Company's contributions vest at 20% each year after the second year of service. The expense related to the plan for the years ended December 31, 2013, 2012 and 2011 was $0.9 million, $0.8 million and $0.6 million, respectively.
	Employment Agreements - The Company has entered into employment agreements with its chief executive officer and chief financial officer to ensure a stable and competent management base. The agreements provide for a three-year term, with an automatic one-year renewal on each anniversary date. The agreements provide for benefits as set forth in the contracts and cannot be terminated by the Board of Directors, except for cause, without prejudicing the officers’ rights to receive certain vested benefits, including compensation. In the event of a change in control of the Company, as outlined in the agreements, the acquirer will be bound to the terms of the contracts.
	Director and Executive Officer Benefit Plans - The Company has Salary Continuation Agreements and supplemental retirement benefits with its chief executive officer and certain other officers. The Salary Continuation Agreements provide for lifetime benefits to be paid to each executive with the payment amounts varying upon different retirement scenarios, such as normal retirement, early termination, disability, or change in control. The Company has purchased life insurance policies on the participating officers in order to provide future funding of benefit payments. Provisions for the years ended December 31, 2013, 2012 and 2011 totaled $0.3 million, $0.6 million and $0.7 million, respectively, were expensed for future benefits to be provided under these benefit plans. The corresponding liability related to these benefit plans was $6.3 million and $6.1 million as of December 31, 2013 and 2012, respectively.
	The Company also has a deferred compensation plan for its directors. Expense provided under the plan totaled $0.4 million, $0.5 million and $0.5 million for the years ended December 31, 2013, 2012 and 2011, respectively. Since 2003, directors have had the option to invest amounts deferred in Company common stock that is held in a rabbi trust established for that purpose. At December 31, 2013 and 2012, the trust held 339,448 and 337,673 shares of Company common stock, respectively.

Parent_Company_Financial_Data

Parent Company Financial Data	12 Months Ended
	Dec. 31, 2013
Condensed Financial Information of Parent Company Only Disclosure [Abstract]	'
Parent Company Financial Data	'
	PARENT COMPANY FINANCIAL DATA
	The following are condensed financial statements of the Parent Company as of and for the years ended December 31, 2013, 2012 and 2011 (dollars in thousands):
	CONDENSED BALANCE SHEETS
	December 31, 2013 and 2012
		December 31, 2013			December 31, 2012
	Assets
	Cash and due from banks	$	1,392		$	11,103
	Investment in bank subsidiary	320,941			306,816
	Investment in other subsidiaries	1,113			1,113
	Other assets	622			222
	Total assets	$	324,068		$	319,254
	Liabilities and Shareholders' Equity
	Other liabilities	$	150		$	10,837
	Long-term debt	52,588			26,173
	Total liabilities	52,738			37,010
	Shareholders' Equity:
	Series A, Fixed Rate Cumulative Perpetual Preferred stock	—			30,717
	Series B, Mandatorily Convertible Non-Voting Preferred stock	—			17,161
	Common stock, no par value	168,616			157,541
	Common stock, non-voting, no par value	57,849			40,688
	Retained earnings	41,559			30,708
	Stock in directors rabbi trust	(3,143		)	(3,090		)
	Directors deferred fees obligation	3,143			3,090
	Accumulated other comprehensive income	3,306			5,429
	Total shareholders' equity	271,330			282,244
	Total liabilities and shareholders' equity	$	324,068		$	319,254
	CONDENSED STATEMENTS OF INCOME
	Years Ended December 31, 2013, 2012 and 2011
		2013			2012			2011
	Dividends from bank subsidiary	$	13,760		$	3,675		$	2,100
	Equity in undistributed earnings of bank subsidiary	5,434			8,094			5,427
	Other income	625			626			637
	Interest expense	1,920			939			968
	Other expense	652			1,003			266
	Total net income	$	17,247		$	10,453		$	6,930
	CONDENSED STATEMENTS OF CASH FLOWS
	Years Ended December 31, 2013, 2012 and 2011
		2013			2012			2011
	Operating activities
	Net income	$	17,247		$	10,453		$	6,930
	Adjustments to reconcile net income to net cash provided by operating activities:
	Equity in undistributed earnings of bank subsidiary	(5,434		)	(8,094		)	(5,427		)
	Amortization	48			11			11
	(Increase) decrease in other assets	(472		)	2			7
	Increase (decrease) in other liabilities	(10,687		)	10,267			(362		)
	Net cash provided by operating activities	702			12,639			1,159
	Investing activities
	Net cash used in investment in subsidiaries	—			(61,397		)	—
	Financing activities
	Proceeds (repayments) on short-term borrowings	—			(6,280		)	3,025
	Proceeds on long-term debt	26,440			2,460			—
	Proceeds from issuance of preferred stock	(31,260		)	68,308			—
	Redemption of common stock warrant	—			(940		)	—
	Proceeds from exercise of stock options	—			138			52
	Tax benefit from exercise of stock options, net	—			17			—
	Common stock issued pursuant to dividend reinvestment plan	260			225			205
	Cash dividends paid, net of accretion	(5,853		)	(4,879		)	(3,737		)
	Net cash provided by (used in) financing activities	(10,413		)	59,049			(455		)
	Net increase (decrease) in cash and cash equivalents	(9,711		)	10,291			704
	Cash and cash equivalents, beginning of period	11,103			812			108
	Cash and cash equivalents, end of period	$	1,392		$	11,103		$	812

Basis_Presentation_Policies

Basis Presentation (Policies)	12 Months Ended
	Dec. 31, 2013
Accounting Policies [Abstract]	'
Basis of Presentation	'
	Basis of Presentation
	The accompanying consolidated financial statements include the accounts and transactions of the Parent Company and BNC, collectively referred to herein as the “Company”. All significant intercompany transactions and balances have been eliminated in consolidation.
Use of Estimates	'
	Use of Estimates
	The preparation of consolidated financial statements in conformity with accounting principles generally accepted in the United States of America (“GAAP”) requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. On an ongoing basis, the Company evaluates its estimates, including those relating to the allowance for loan losses, determination of fair value of acquired assets and assumed liabilities, and valuation of goodwill and intangible assets.
Reclassifications	'
	Reclassifications
	Certain amounts in the 2012 consolidated financial statements have been reclassified to conform to the 2013 presentation. The reclassifications had no effect on net income, net income available to common shareholders or shareholders' equity as previously reported.
Business Combinations	'
	Business Combinations
	The Company accounts for its business combinations using the acquisition method of accounting. This method requires the use of fair values in determining the carrying values of the purchased assets and assumed liabilities, which are recorded at fair value at acquisition date, and identifiable intangible assets are recorded at fair value. Costs directly related to the business combinations are recorded as expenses as they are incurred. Fair values are subject to refinement for up to one year after the closing date of an acquisition as information relative to closing date fair values become available.
Cash and Cash Equivalents	'
	Cash and Cash Equivalents
	For the purpose of presentation in the statements of cash flows, cash and cash equivalents include cash and due from banks and interest-earning deposits in other banks.
	Federal regulations require financial institutions to set aside a specified amount as a reserve against transaction accounts and time deposits. At December 31, 2013 and 2012, the Company’s reserve requirement was $8.4 million and $24.8 million, respectively.
Investment Securities	'
	Investment Securities
	Investment securities are classified into one of three categories on the date of purchase and accounted for as follows: (1) debt securities that the Company has the positive intent and the ability to hold to maturity are classified as held-to-maturity and reported at amortized cost; (2) debt and equity securities that are bought and held principally for the purpose of selling them in the near term are classified as trading securities and reported at fair value, with unrealized gains and losses included in earnings; and (3) debt and equity securities not classified as either held-to-maturity securities or trading securities are classified as available-for-sale securities and reported at fair value, with unrealized gains and losses, net of taxes, reported as other comprehensive income.
	Premiums are amortized and discounts accreted using the interest method over the remaining terms of the related securities. Dividend and interest income are recognized when earned. Sales of investment securities are recorded at trade date, with realized gains and losses on sales determined using the specific identification method and included in non-interest income.
	Transfers of investment securities into the held-to-maturity category from the available-for-sale category are made at fair value at the date of transfer. The unrealized holding gain or loss at the date of transfer is retained in accumulated other comprehensive income and in the carrying value of the held-to-maturity securities. Such amounts are amortized over the remaining life of the security.
	Our investment securities portfolio includes residential mortgage-backed securities and collateralized mortgage obligations. As the underlying collateral of each of these securities is comprised of a large number of similar residential mortgage loans for which prepayments are probable and the timing and amount of such prepayments can be reasonably estimated, we consider estimates of future principal prepayments of these underlying residential mortgage loans in the calculation of the constant effective yield used to apply the interest method for income recognition.
	The Company evaluates each investment security in a loss position for other-than-temporary impairment (“OTTI”). The Company considers such factors as the length of time and the extent to which the market value has been below amortized cost, long term expectations and recent experience regarding principal and interest payments, intent to sell and whether it is more likely than not that the Company would be required to sell those securities before the anticipated recovery of the amortized cost basis. The credit component of an OTTI loss is recognized in earnings and the non-credit component is recognized in accumulated other comprehensive income in situations where the Company does not intend to sell the security and it is more-likely-than-not that the Company will not be required to sell the security prior to recovery.
Federal Home Loan Bank Stock	'
	Federal Home Loan Bank Stock
	As a member of the Federal Home Loan Bank of Atlanta (the "FHLB"), the Company is required to maintain an investment in the stock of the FHLB based upon the amount of outstanding FHLB borrowings. This stock does not have a readily determinable fair value and is carried at cost.
Loans and Leases	'
	Loans and Leases
	Originated Loans and Leases
	Loans that management has the intent and ability to hold for the foreseeable future or until maturity are reported at their outstanding principal balances, adjusted for any charge-offs, unearned discounts, and unamortized fees and costs on originated loans. Interest income on loans is accrued and credited to income based upon the principal amount outstanding. The net amount of nonrefundable loan origination fees and certain direct costs associated with the lending process are deferred and amortized to interest income over the contractual lives of the loans using methods that approximate the interest method.
	The Company classifies all loans and leases past due when the payment of principal and/or interest based upon contractual terms is greater than 30 days delinquent. When commercial loans are placed on nonaccrual status as described below, a charge-off is recorded, as applicable, to decrease the carrying value of such loans to the estimated fair value of the collateral securing the loan. Consumer loans are placed on nonaccrual status at a specified delinquency date consistent with regulatory guidelines. As such, consumer loans are subject to collateral valuation and charge-off, as applicable, when they are moved to nonaccrual status. The accrual of interest income for commercial loans is discontinued when there is a clear indication that the borrower’s cash flow may not be sufficient to meet payments as they become due, while the accrual of interest income for consumer loans is discontinued when loans reach specific delinquency levels.
	Acquired Loans
	Acquired loans are recorded at their fair value at the acquisition date. Credit discounts are included in the determination of fair value; therefore, an allowance for loan losses is not recorded at the acquisition date. Loans acquired in FDIC-assisted transactions and covered under loss-share agreements are referred to as “covered loans.”
	Acquired loans are evaluated upon acquisition and classified as either purchased impaired or purchased non-impaired. Purchased impaired loans reflect credit deterioration since origination such that it is probable at acquisition that the Company will be unable to collect all contractually required payments. For purchased impaired loans, expected cash flows at the acquisition date in excess of the fair value of loans are recorded as interest income over the life of the loans using a level yield method if the timing and amount of the future cash flows is reasonably estimable. Subsequent to the acquisition date, increases in cash flows over those expected at the acquisition date are recognized prospectively as interest income. Decreases in expected cash flows after the acquisition date are recognized immediately through the provision for loan losses. For purchased non-impaired loans, the difference between the fair value and unpaid principal balance of the loan at the acquisition date is amortized or accreted to interest income over the economic life of the loans using a method that approximates the interest method.
	Covered loans acquired will be reimbursed for a substantial portion of any future losses on them under the terms of the FDIC loss-share agreements. The covered loans are reported in loans exclusive of the expected reimbursement from the FDIC. Covered loans are initially recorded at fair value at the acquisition date. The covered loans are and will be subject to the Company’s internal and external credit review and monitoring. Prospective losses incurred on covered loans are eligible for partial reimbursement by the FDIC. Subsequent decreases in the amount expected to be collected result in a provision for loan losses, an increase in the allowance for loan losses, and a proportional increase to the FDIC indemnification asset for the estimated amount to be reimbursed. Subsequent increases in the amount expected to be collected result in the reversal of any previously-recorded provision for loan losses and related allowance for loan losses and decreases to the FDIC indemnification asset, or accretion of certain fair value amounts into interest income in future periods if no provision for loan losses had been recorded.
	Loans Held for Sale
	The Company originates certain single family, residential first mortgage loans for sale on a presold basis and these loans are classified as loans held for sale. Loans held for sale are carried at the lower of cost or estimated fair value in the aggregate as determined by outstanding commitments from investors. Upon closing, these loans, together with their servicing rights, are sold to other financial institutions under prearranged terms on a best-efforts basis. Gains or losses on loan sales are recognized at the time of sale and are determined by the difference between net sales proceeds and the principal balance of the loans sold, adjusted for net deferred loan fees or costs. Loan origination and commitment fees, net of certain direct loan origination costs, are deferred as an adjustment to the carrying value of the loan until it is sold. The commitments to sell loans and the commitments to originate loans held for sale at a set interest rate, if originated, are considered derivatives under GAAP. The impact of the estimated fair value adjustment was not significant to the consolidated financial statements.
	Nonperforming Loans
	The Company considers a loan impaired, based on current information and events, if it is probable that the Company will be unable to collect the scheduled payments of principal or interest when due according to the contractual terms of the loan agreement. All impaired loans are measured based on the present value of the expected future cash flows discounted at the loan's effective interest rate, the loan's observable market price, or at the fair value of the collateral if the loan is collateral dependent.
	The Company uses several factors in determining if a loan is impaired. Internal asset classification procedures include a thorough review of significant loans and lending relationships and include the accumulation of related data. This data includes loan payment status and the borrowers' financial data, cash flows, operating income or loss, and other factors. These discounted cash flow analyses incorporate adjustments to future cash flows that reflect management’s best estimate based on a combination of historical experience and management judgment.
	Loans are generally classified as nonaccrual if they are past due as to maturity or payment of principal or interest for a period of more than ninety (90) days, unless such loans are well-secured and in the process of collection. If a loan or a portion of a loan is classified as doubtful or is partially charged off, the loan is generally classified as nonaccrual. Loans that are on a current payment status or past due less than ninety (90) days may also be classified as nonaccrual if repayment in full of principal and/or interest is in doubt.
	Loans may be returned to accrual status when all principal and interest amounts contractually due (including arrearages) are reasonably assured of repayment within an acceptable period of time and there is a sustained period of repayment performance (generally, a minimum of six months) by the borrower in accordance with the contractual terms of interest and principal.
	While a loan is classified as nonaccrual and the future collectability of the recorded loan balance is doubtful, collections of interest and principal are generally applied as a reduction to principal outstanding. When future collection of the recorded loan balance is expected, interest income may be recognized on a cash basis. In the case where a nonaccrual loan had been partially charged off, recognition of interest on a cash basis is limited to that which would have been recognized on the recorded loan balance at the contractual interest rate. Receipts in excess of that amount are recorded as recoveries to the allowance for loan losses until prior charge-offs have been fully recovered.
	Restructurings
	Modifications to a borrower’s debt agreement are considered troubled debt restructurings (“TDRs”) if a concession is granted for economic or legal reasons related to a borrower’s financial difficulties that otherwise would not be considered. TDRs are undertaken in order to improve the likelihood of recovery on the loan and may take the form of modifications made with the stated interest rate lower than the current market rate for new debt with similar risk, modifications to the terms and conditions of the loan that fall outside of normal underwriting policies and procedures, or a combination of these modifications. Modifications of covered and other acquired loans that are part of a pool accounted for as a single asset are not considered TDRs. TDRs can involve loans remaining on nonaccrual, moving to nonaccrual, or continuing on accruing status, depending on the individual facts and circumstances of the borrower.
	Allowance for Loan Losses
	The allowance for loan losses is established through a provision for loan losses charged to expense. Loans are charged-off against the allowance when management believes that the collectability of principal is unlikely. Recoveries of amounts previously charged-off are credited to the allowance. The allowance is an amount that management believes will be adequate to absorb probable losses on existing loans based on evaluations of the collectibility of loans. The evaluations take into consideration such factors as changes in the nature and volume of the loan portfolio, overall portfolio quality, historical loan losses, review of specific loans for impairment, and current economic conditions and trends that may affect the borrowers' ability to pay. Accrual of interest is discontinued on loans when management believes, after considering economic and business conditions and collection efforts and the value of the underlying collateral, that the borrowers' financial condition is such that collection is doubtful.
	In addition, various regulatory agencies, as an integral part of their examination process, periodically review BNC’s allowance for loan losses. Such agencies may require BNC to recognize adjustments to the allowance based on their judgments of information available to them at the time of their examination.
	Accounting standards require the presentation of certain disclosure information at the portfolio segment level, which represents the level at which an entity develops and documents a systematic methodology to determine its allowance for loan losses. The Company concluded that its loan and lease portfolio comprises two portfolio segments; originated loans (which include purchased non-credit impaired loans) and purchased credit impaired loans. Originated loans include both commercial loans, which include commercial real estate, commercial construction, commercial and industrial and leases, and retail loans, which include residential construction, residential mortgage and consumer and other loans. The following provides a description of the Company’s accounting policies and methodologies related to each of its portfolio segments:
	Originated Loans
	All commercial and retail loans that are originated by the Company are assigned risk grades based on an assessment of conditions that affect the borrower’s ability to meet contractual obligations under the loan agreement. This process includes reviewing borrowers’ financial information, historical payment experience, credit documentation, public information, and other information specific to each borrower. Loans with outstanding balance of $1 million or more, as well as all other loans included in such relationships, are reviewed on an annual basis. Loans with total committed exposure of $250,000 or more that are risk graded as Special Mention or worse, as well as credit relationships with total credit exposure of $500,000 or more that are risk graded Special Mention or worse, are reviewed on a quarterly basis. All other loans are reviewed at any point management becomes aware of information affecting the borrower’s ability to fulfill their obligations. The Company calculates a specific reserve for each loan that has been deemed impaired, which include commercial loans 90 days or more past due, commercial nonaccrual loans above $250,000, and commercial and retail restructurings above $250,000. The amount of the reserve is based on the present value of expected cash flows discounted at the loan’s effective interest rate, and/or the value of collateral. If foreclosure is probable or the loan is collateral dependent, impairment is measured using the fair value of the loan’s collateral, less estimated costs to sell.
	For acquired loans that are not deemed credit impaired at acquisition, credit discounts representing the principal losses expected over the life of the loan are a component of the initial fair value. Subsequent to the purchase date, the methods utilized to estimate the required allowance for loan losses for these loans is similar to originated loans, however, the Company records a provision for loan losses only when the required allowance, net of any expected reimbursement under any loss-share agreements, exceeds any remaining credit discounts. The remaining differences between the purchase price and the unpaid principal balance at the date of acquisition are recorded in interest income over the economic life of the loans.
	The Company also maintains reserves for collective impairment that reflect an estimate of losses related to non-impaired loans as of the balance sheet date, as well as impaired loans below the parameters described above for specific reserve. Embedded loss estimates are based on estimated migration rates, which are estimated based on historical experience, and current risk mix as indicated by the risk grading process described above. Embedded loss estimates may be adjusted to reflect current economic conditions and current portfolio trends including credit quality, concentrations, aging of the portfolio, and significant policy and underwriting changes.
	Purchased Credit Impaired Loans
	The allowance for loan and lease losses related to purchased credit impaired loans is based on an analysis that is performed each period to estimate the expected cash flows for each of the loan pools. To the extent that the expected cash flows of a loan pool have decreased since the acquisition date, the Company establishes an allowance for loan losses.
Other Real Estate Owned	'
	Other Real Estate Owned
	Other real estate owned (“OREO”) acquired through, or in lieu of, loan foreclosure is held for sale and is initially recorded at estimated fair value less cost of disposal at the date of foreclosure, establishing a new cost basis. When property is acquired, the excess, if any, of the loan balance over estimated fair value is charged to the allowance for loan losses. Subsequent to foreclosure, valuations are periodically performed by management and the assets are carried at the lower of carrying amount or fair value less cost to sell. Revenue and expenses from operations and changes in the valuation allowance are included in loan, foreclosure and other real estate owned expenses as a component of non-interest expense.
	Certain OREO properties are subject to loss-sharing agreements with the FDIC and are labeled “covered” on the consolidated balance sheets.
FDIC Indemnification Asset	'
	FDIC Indemnification Asset
	The FDIC indemnification asset is measured separately from the related covered assets as it is not contractually embedded in the assets and is not transferable with the assets should the Company choose to dispose of them. At acquisition date of an FDIC-assisted transaction, fair value is estimated using projected cash flows related to the loss-share agreements based on the expected reimbursements for losses and the applicable loss-sharing percentages and the estimated true-up payment at the expiration of the loss-share agreements, if applicable. These cash flows were discounted to reflect the estimated timing of the receipt of the loss-share reimbursement from the FDIC and the true-up payment to the FDIC. Cash flow projections resulting from the loss-share agreements are reviewed and updated prospectively as loss estimates related to both covered loans and covered other real estate owned change, including the existence of and amount of any required true-up payment owed to the FDIC.
Premises and Equipment	'
	Premises and Equipment
	Premises and equipment are stated at cost less accumulated depreciation and amortization. Land is carried at cost. Depreciation and amortization are computed using the straight-line method over the estimated useful lives of the respective assets, which are 40 years for buildings and 3 to 10 years for furniture, fixtures and equipment. Leasehold improvements are amortized over the terms of the respective leases or the estimated useful lives of the improvements, whichever is shorter. Repairs and maintenance costs are charged to operations as incurred.
Bank-Owned Life Insurance	'
	Bank-Owned Life Insurance
	The Company has purchased life insurance policies on certain current and past key employees and directors where the insurance policy benefits and ownership are retained by the employer. These policies are recorded at their cash surrender value. Income from these policies and changes in the net cash surrender value are recorded in non-interest income as earnings on bank-owned life insurance. The cash value accumulation is permanently tax deferred if the policy is held to the insured person’s death and certain other conditions are met.
Goodwill and Other Intangible Assets	'
	Goodwill and Other Intangible Assets
	Goodwill represents the excess of the purchase price over the fair value of net assets acquired in a business combination. Goodwill is not amortized but is evaluated for impairment on an annual basis, or more frequently if an event occurs indicating that goodwill may be impaired. Any impairment of goodwill or other intangibles will be recognized as an expense in the period of impairment. The Company completes the annual goodwill impairment test as of June 30 of each year and the test indicated there was no impairment of goodwill.
	Identifiable intangible assets are acquired assets that lack physical substance but can be distinguished from goodwill because of contractual or legal rights or because the assets are capable of being sold or exchanged either on their own or in combination with a related contract, asset, or liability. The Company’s identifiable intangible assets relate to premiums on purchased core deposits and are being amortized over their estimated useful lives.
Derivatives	'
	Derivatives
	The Company applies hedge accounting to certain interest rate derivatives entered into for risk management purposes. To qualify for hedge accounting, a derivative must be highly effective at reducing the risk associated with the exposure being hedged. In addition, key aspects of achieving hedge accounting are documentation of hedging strategy and hedge effectiveness at the hedge inception and substantiating hedge effectiveness on an ongoing basis. A derivative must be highly effective in accomplishing the hedge objective of offsetting changes in the cash flows of the hedged item for the risk being hedged. Any ineffectiveness in the hedge relationship is recognized in earnings. The effective portion of changes in the fair value of derivatives designated in a hedge relationship and that qualify as cash flow hedges is recorded in accumulated other comprehensive income, net of tax, and is subsequently reclassified into earnings in the period that the hedged transaction affects earnings.
	The Company assesses, both at the inception of the hedge and on an ongoing basis, whether derivatives used as hedging instruments are highly effective in offsetting the changes in the cash flow of the hedge items. If it is determined that a derivative is not highly effective as a hedge or ceases to be highly effective, the Company will discontinue hedge accounting prospectively.
Earnings Per Share	'
	Earnings Per Share
	Basic earnings per common share is computed using the weighted average number of common shares and participating securities outstanding during the reporting period. Diluted earnings per common share is the amount of earnings available to each share of common stock during the reporting period adjusted to include the effect of potentially dilutive common shares. Potentially dilutive common shares are excluded from the computation of dilutive earnings per share in the periods in which the effect would be anti-dilutive.
Income Taxes	'
	Income Taxes
	Deferred income taxes are recognized for the tax consequences of temporary differences between financial statement carrying amounts and the tax bases of existing assets and liabilities that will result in taxable or deductible amounts in future years. These temporary differences are multiplied by the enacted income tax rate expected to be in effect when the taxes become payable or receivable. The effect on deferred taxes of a change in tax rates is recognized in income in the period that includes the enactment date. Deferred tax assets are reduced, if necessary, by the amount of such benefits that are not expected to be realized based on available evidence.
Operating Segments	'
	Operating Segments
	The Company’s operations are managed along two operating segments, consisting of banking operations and mortgage origination. While the chief operating decision maker uses financial information related to these segments to analyze business performance and allocate resources, the mortgage origination segment does not meet the quantitative threshold under GAAP to be considered a reportable segment. As such, these operating segments are aggregated into a single reportable operating segment in the Consolidated Financial Statements. No revenues are derived from foreign countries or from external customers that comprise more than 10% of the Company’s revenues.
Stock Compensation Plans	'
	Stock Compensation Plans
	The Company follows the provisions of the authoritative guidance regarding share-based compensation. This guidance values share-based awards at the grant date fair value and recognizes the expense over the requisite service period.
Recently Adopted and Issued Accounting Standards	'
	Recently Adopted and Issued Accounting Standards
	In January 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2014-04, Receivables (Topic 310): Reclassification of Residential Real Estate Collateralized Consumer Mortgage Loans upon Foreclosure to clarify that an in substance repossession or foreclosure occurs upon either the creditor obtaining legal title to the residential real estate property or the borrower conveying all interest in the residential real estate property to the creditor to satisfy that loan through completion of a deed in lieu of foreclosure or through a similar legal agreement. The amendments are effective for annual periods, and interim reporting periods within those annual periods, beginning after December 15, 2014. The amendments may be adopted using either a modified retrospective transition method or a prospective transition method and early adoption is permitted. The Company does not expect the adoption of this ASU to have a material impact on its consolidated financial statements.
	In July 2013, the FASB issued ASU No. 2013-10, Derivatives and Hedging (Topic 815): Inclusion of the Fed Funds Effective Swap Rate (or Overnight Index Swap Rate) as a Benchmark Interest Rate for Hedge Accounting Purposes to provide guidance on the risks that are permitted to be hedged in a fair value or cash flow hedge. Among those risks for financial assets and financial liabilities is the risk of changes in a hedged item’s fair value or a hedged transaction’s cash flows attributable to changes in the designated benchmark interest rate (referred to as interest rate risk). The provisions were effective prospectively for qualifying new or redesignated hedging relationships entered into on or after July 17, 2013. The adoption of this ASU did not have a material impact on the Company's consolidated financial statements.
	In July 2013, the FASB issued ASU No. 2013-11, Income Taxes (Topic 740): Presentation of an Unrecognized Tax Benefit When a Net Operating Loss Carryforward, a Similar Tax Loss, or a Tax Credit Carryforward Exists to provide 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 thereby reducing diversity in practice. The amendments are effective for fiscal years, and interim periods within those years, beginning after December 15, 2013. Early adoption is permitted. The amendments are to be applied prospectively to all unrecognized tax benefits that exist at the effective date with retrospective application permitted. The Company does not expect the adoption of this ASU to have a material impact on its consolidated financial statements.
	In February 2013, the FASB issued ASU No. 2013-02, Comprehensive Income (Topic 220): Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income. This ASU requires that companies present either in a single note or parenthetically on the face of the financial statements, the effect of significant amounts reclassified from each component of accumulated other comprehensive income based on its source (e.g., the release due to cash flow hedges from interest rate contracts) and the income statement line items affected by the reclassification (e.g., interest income or interest expense). If a component is not required to be reclassified to net income in its entirety, companies would instead cross reference to the related footnote for additional information. This ASU is effective for fiscal and interim reporting periods beginning after December 15, 2012. The adoption of this ASU did not have a material impact on the Company's consolidated financial statements.
	In October 2012, the FASB issued ASU No. 2012-06, Business Combinations (Topic 805): Subsequent Accounting for an Indemnification Asset Recognized at the Acquisition Date as a Result of a Government-Assisted Acquisition of a Financial Institution, which addresses diversity in practice regarding the subsequent measurement of an indemnification asset in a government-assisted acquisition of a financial institution that includes a loss-sharing agreement. The amendments are effective for interim and annual reporting periods beginning on or after December 15, 2012 with early adoption permitted. The adoption of this ASU did not have a material impact on the Company’s consolidated financial statements.
	In December 2011, the FASB issued ASU 2011-11, Balance Sheet (Topic 210): Disclosures about Offsetting Assets and Liabilities. Under this update, the Company will be required to disclose both gross information and net information about both instruments and transactions eligible for offset in the statement of financial position and transactions subject to an agreement similar to a master netting arrangement. The scope would include derivatives, sale and repurchase agreements and securities borrowing and securities lending arrangements. This disclosure is intended to enable financial statement users to understand the effect of such arrangements on the Company’s financial position. The objective of this update is to support further convergence between U.S. GAAP and International Financial Reporting Standards. In January 2013, the FASB released ASU 2013-01 Balance Sheet (Topic 210): Clarifying the Scope of Disclosures about Offsetting Assets and Liabilities. Under this update, the FASB limited the scope of ASU 2011-11 to items identified in the implementation guidance which include derivatives, sale and repurchase agreements and securities borrowing and securities lending arrangements that are either offset on the balance sheet or subject to an enforceable master netting agreement. Both of these updates are effective for annual reporting periods beginning on or after January 1, 2013. The adoption of this ASU did not have a material impact on the Company’s consolidated financial statements.

Acquisitions_Tables

Acquisitions (Tables)	12 Months Ended
	Dec. 31, 2013
Randolph Bank and Trust	'
Business Acquisition [Line Items]	'
Business Acquisition, Pro Forma Information	'
	The following table presents financial information regarding the former Randolph operations included in our Consolidated Statements of Income from the date of acquisition through December 31, 2013 under the column “Actual from acquisition date through December 31, 2013”. These amounts do not include direct costs as explained above. In addition, the following table presents unaudited pro-forma information as if the acquisition of Randolph had occurred on January 1, 2012 under the “Pro-forma” columns. This pro-forma information gives effect to certain adjustments, including purchase accounting fair value adjustments, amortization of core deposit and other intangibles and related income tax effects. Transaction-related costs related to the acquisition are not reflected in the pro-forma amounts. The pro-forma information does not necessarily reflect the results of operations that would have occurred had the Company merged with Randolph at the beginning of 2012. Cost savings are also not reflected in the unaudited pro-forma amounts for the years ended December 31, 2013 and 2012, respectively.
		Actual from acquisition date through December 31,			Pro-forma year ended December 31,
		2013			2013				2012
	Net interest income	$	29,872		$	116,467			$	91,750
	Non-interest income	5,178			25,192				38,064
	Net income	3,271			18,078				10,967
	Net income available to common shareholders	3,271			17,018				8,361
	Pro-forma earnings per share:
	Basic				$	0.63			$	0.22
	Diluted				$	0.63			$	0.22
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed	'
	A summary of assets received and liabilities assumed for Randolph, as well as the associated fair value adjustments, are as follows (dollars in thousands):
		As Recorded by			Fair				As Recorded
		Randolph			Value Adjustments				by BNC
	Assets
	Cash and due from banks	$	14,207		$	—			$	14,207
	Investment securities available-for-sale	5,082			130			-1	5,212
	Federal Home Loan Bank stock, at cost	630			—				630
	Loans	161,220			(6,973		)	-2	154,247
	Premises and equipment	4,537			811			-3	5,348
	Accrued interest receivable	800			—				800
	Other real estate owned	4,844			(626		)	-4	4,218
	Core deposit intangible	—			2,676			-5	2,676
	Other assets	92,289			1,744			-6	94,033
	Total assets acquired	$	283,609		$	(2,238	)		$	281,371
	Liabilities
	Deposits	$	(260,484	)	$	(523	)	-7	$	(261,007	)
	Long-term borrowings	(6,100		)	(209		)	-8	(6,309		)
	Other liabilities	(1,291		)	—				(1,291		)
	Total liabilities assumed	$	(267,875	)	$	(732	)		$	(268,607	)
	Net assets acquired								12,764
	Total consideration paid								14,037
	Goodwill								$	1,273
	Explanation of fair value adjustments:
	-1	Adjustment for the fair value of the investment securities portfolio.
	-2	Adjustment for the fair value of the loan portfolio.
	-3	Adjustment for the fair value of the premises and equipment.
	-4	Adjustment for the fair value of the other real estate owned.
	-5	Adjustment for the fair value of the core deposit intangible.
	-6	Adjustment for the deferred tax asset recognized from acquisition.
	-7	Adjustment for the fair value of the time deposits.
	-8	Adjustment for the fair value of the borrowings.
	A summary of the consideration paid is as follows (dollars in thousands):
	Common stock issued (726,634 shares)	$	9,642
	Redemption of preferred stock	2,300
	Cash payments to common stockholders	2,095
	Total consideration paid	$	14,037
First Trust Bank	'
Business Acquisition [Line Items]	'
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed	'
	A summary of assets received and liabilities assumed for First Trust, as well as the associated fair value adjustments, are as follows (dollars in thousands):
		As Recorded by			Fair					As Recorded
		First Trust			Value Adjustments					by BNC
	Assets
	Cash and due from banks	$	46,079		$	—				$	46,079
	Investment securities available-for-sale	124,616			—					124,616
	Federal Home Loan Bank stock, at cost	753			—					753
	Loans	179,702			(9,820		)	-1		169,882
	Premises and equipment	6,938			866			-2		7,804
	Accrued interest receivable	1,565			—					1,565
	Other real estate owned	8,686			(535		)	-3		8,151
	Core deposit intangible	—			1,826			-4		1,826
	Other assets	12,337			3,295			-5		15,632
	Total assets acquired	$	380,676		$	(4,368	)			$	376,308
	Liabilities
	Deposits	$	(323,139	)	$	(884	)	-6		$	(324,023	)
	Short-term borrowings	(7,899		)	—					(7,899		)
	Other liabilities	(2,849		)	—					(2,849		)
	Total liabilities assumed	$	(333,887	)	$	(884	)			$	(334,771	)
	Net assets acquired									41,537
	Total consideration paid									36,565
	Bargain purchase gain									$	4,972
	Explanation of fair value adjustments:
	-1	Adjustment for the fair value of the loan portfolio.
	-2	Adjustment for fair value of the premises and equipment.
	-3	Adjustment for the fair value of the other real estate owned.
	-4	Adjustment for the fair value of the core deposit intangible.
	-5	Adjustment for the deferred tax asset recognized from acquisition.
	-6	Adjustment for the fair value of the time deposits.
	A summary of the consideration paid for First Trust is as follows (dollars in thousands):
	Common stock issued (3,276,101 shares)	$	26,177
	Cash payments to First Trust stockholders	10,388
	Total consideration paid	$	36,565
KeySource Financial Inc	'
Business Acquisition [Line Items]	'
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed	'
	A summary of assets received and liabilities assumed for KeySource, as well as the associated fair value adjustments, are as follows (dollars in thousands):
		As Recorded by KeySource			Fair Value Adjustments				As Recorded by BNC
	Assets
	Cash and due from banks	$	19,847		$	—			$	19,847
	Investment securities available-for-sale	3,445			—				3,445
	Federal Home Loan Bank stock, at cost	430			—				430
	Loans	148,295			(8,690		)	-1	139,605
	Premises and equipment	650			—				650
	Accrued interest receivable	547			—				547
	Other real estate owned	1,289			(150		)	-2	1,139
	Core deposit intangible	—			621			-3	621
	Other assets	4,445			3,516			-4	7,961
	Total assets acquired	$	178,948		$	(4,703	)		174,245
	Liabilities
	Deposits	(151,553		)	(854		)	-5	(152,407		)
	Short-term borrowings	(780		)	—				(780		)
	Long-term debt	(5,999		)	(48		)	-6	(6,047		)
	Other liabilities	(1,754		)	102			-7	(1,652		)
	Total liabilities assumed	$	(160,086	)	$	(800	)		(160,886		)
	Net assets acquired								13,359
	Total consideration paid								13,942
	Goodwill								$	583
	Explanation of fair value adjustments:
	-1	Adjustment for the fair value of the loan portfolio.
	-2	Adjustment for the fair value of the other real estate owned.
	-3	Adjustment for the fair value of the core deposit intangible.
	-4	Adjustment for deferred tax asset recognized from acquisition.
	-5	Adjustment for the fair value of the time deposits.
	-6	Adjustment for the fair value of the subordinated debt assumed.
	-7	Adjustment for the reversal of an accrued liability.
	A summary of the consideration paid for KeySource is as follows (dollars in thousands):
	Common stock issued (1,810,267 shares)	$	13,686
	Fair value of KeySource stock options assumed	256
	Total consideration paid	$	13,942
Carolina Federal Savings Bank	'
Business Acquisition [Line Items]	'
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed	'
	A summary of the assets received and liabilities assumed from the FDIC for Carolina Federal, as well as the associated fair value adjustments, are as follows (dollars in thousands):
		As Recorded by Carolina Federal			Fair Value Adjustments					As Recorded by BNC
	Assets
	Cash and due from banks	$	8,394		$	—				$	8,394
	Federal Home Loan Bank stock, at cost	112			—					112
	Loans	32,328			(2,862		)	-1		29,466
	Accrued interest receivable	124			—					124
	Core deposit intangible	—			93			-2		93
	Other assets	35			1,291			-3		1,326
	Total assets acquired	$	40,993		$	(1,478	)			$	39,515
	Liabilities
	Deposits	$	(52,992	)	$	(148	)	-4		$	(53,140	)
	Deferred tax liability	—			(2,981		)	-5		(2,981		)
	Other liabilities	(42		)	-					(42		)
	Total liabilities assumed	(53,034		)	(3,129		)			(56,163		)
	Excess of liabilities assumed over assets acquired	$	(12,041	)
	Aggregate fair value adjustments				$	(4,607	)
	Cash received from the FDIC									21,400
	Net assets acquired (net after-tax gain)									4,752
	Income tax effect									2,982
	Net assets acquired (bargain purchase gain)									$	7,734
	Explanation of fair value adjustments:
	-1	Adjustment for the fair value of the loan portfolio.
	-2	Adjustment for the fair value of the core deposit intangible.
	-3	Adjustment for amount due to BNC from the FDIC.
	-4	Adjustment for the fair value of the time deposits.
	-5	Adjustment for the deferred tax liability from the acquisition gain.

Earnings_Per_Share_Tables

Earnings Per Share (Tables)	12 Months Ended
	Dec. 31, 2013
Earnings Per Share [Abstract]	'
Schedule of Earnings Per Share, Basic and Diluted	'
	The Company's basic and diluted earnings per share calculations for the years ended December 31, 2013, 2012 and 2011 are presented in the following table (dollars in thousands, except per share data):
		2013		2012		2011
	Net income available to common shareholders	$	16,187	$	8,049	$	4,526
	Add: Convertible preferred stock dividends	—		361		361
	Net income available to participating common shareholders	$	16,187	$	8,410	$	4,887
	Weighted average common shares - basic	26,495,211		15,790,448		9,073,024
	Add: Effect of convertible preferred stock	187,873		1,804,566		1,804,566
	Weighted average participating common shares - basic	26,683,084		17,595,014		10,877,590
	Effects of dilutive Stock Rights	31,090		4,204		16,541
	Weighted average participating common shares - diluted	26,714,174		17,599,218		10,894,131
	Basic earnings per common share	$	0.61	$	0.48	$	0.45
	Diluted earnings per common share	$	0.61	$	0.48	$	0.45

Investment_Securities_Tables

Investment Securities (Tables)	12 Months Ended
	Dec. 31, 2013
Investments, Debt and Equity Securities [Abstract]	'
Marketable Securities	'
	The amortized cost, gross unrealized gains and losses, and estimated fair values of investment securities at December 31, 2013 and 2012 are presented in the following tables (dollars in thousands):
		Amortized Cost				Gross Unrealized Gains				Gross Unrealized Losses				Fair Value
	December 31, 2013
	Available-for-sale:
	U.S. Government agencies	$	15,720			$	4			$	663			$	15,061
	State and municipals	194,224				2,704				5,665				191,263
	Corporate debt securities	9,011				16				138				8,889
	Other debt securities	4,727				—				347				4,380
	Equity securities	979				—				57				922
	Mortgage-backed securities:
	Residential government sponsored	41,231				1,442				659				42,014
	Other government sponsored	7,615				276				3				7,888
		$	273,507			$	4,442			$	7,532			$	270,417
	Held-to-maturity:
	State and municipals	$	221,378			$	379			$	10,169			$	211,588
	Corporate debt securities	16,000				—				1,081				14,919
	Other debt securities	10,000				—				—				10,000
		$	247,378			$	379			$	11,250			$	236,507
		Amortized Cost				Gross Unrealized Gains				Gross Unrealized Losses				Fair Value
	December 31, 2012
	Available-for-sale:
	U.S. Government agencies	$	15,735			$	660			$	—			$	16,395
	State and municipals	213,679				11,359				1,152				223,886
	Mortgage-backed securities:
	Residential government sponsored	83,764				3,155				29				86,890
	Other government sponsored	13,923				450				5				14,368
		$	327,101			$	15,624			$	1,186			$	341,539
	Held-to-maturity:
	State and municipals	$	108,805			$	4,576			$	146			$	113,235
	Corporate debt securities	6,000				—				1,000				5,000
		$	114,805			$	4,576			$	1,146			$	118,235
Investments Classified by Contractual Maturity Date	'
	The amortized cost and estimated fair value of investment securities at December 31, 2013, by contractual maturity, are shown below (dollars in thousands). The expected life of mortgage-backed securities will differ from contractual maturities because borrowers may have the right to call or prepay the underlying mortgage loans with or without call or prepayment penalties. For purposes of the maturity table, mortgage-backed securities have been included in maturity groupings based on the contractual maturity.
		Amortized Cost				Fair Value
	Available-for-sale:
	Due in one year or less	$	2,300			$	2,308
	Due after one through five years	1,683				1,712
	Due after five through ten years	16,535				16,511
	Due after ten years	252,010				248,964
	Total debt securities	272,528				269,495
	Equity securities	979				922
		$	273,507			$	270,417
	Held-to-maturity:
	Due in one year or less	$	542			$	549
	Due after one year through five years	13,847				12,905
	Due after five through ten years	23,018				22,864
	Due after ten years	209,971				200,189
		$	247,378			$	236,507
Schedule of Realized Gain (Loss)	'
	The following table presents a summary of realized gains and losses from the sales of investment securities classified as available-for-sale for the years ended December 31, 2013, 2012 and 2011 (dollars in thousands):
		2013				2012				2011
	Proceeds from sales	$	18,414			$	117,381			$	50,717
	Gross realized gains on sales	$	201		-1	$	3,117			$	2,159
	Gross realized losses on sales	(243		)		(91		)		(957		)
	Total realized (losses) gains, net	$	(42	)		$	3,026			$	1,202
	(1) Includes $175 gain derived from the redemption of preferred stock from another financial institution that was purchased at auction from the Treasury.
Investments in a Continuous Unrealized Loss Position, Fair Value	'
	The following tables detail gross unrealized losses and fair values of investment securities aggregated by investment category and length of time that the individual securities have been in a continuous unrealized loss position at December 31, 2013 and 2012 (dollars in thousands):
		Less Than 12 Months											12 Months or More							Total
	31-Dec-13	Number of Securities			Fair Value				Unrealized Losses				Number of Securities			Fair Value		Unrealized Losses		Fair Value		Unrealized Losses
	Available-for-sale:
	U.S. Government agencies	5			$	14,583			$	663			—			$	—	$	—	$	14,583	$	663
	State and municipals	47			72,821				3,647				21			27,976		2,018		100,797		5,665
	Corporate debt securities	2			7,862				138				—			—		—		7,862		138
	Other debt securities	1			4,380				347				—			—		—		4,380		347
	Equity securities	1			922				57				—			—		—		922		57
	Mortgage-backed securities	15			14,146				444				4			4,582		218		18,728		662
		71			$	114,714			$	5,296			25			$	32,558	$	2,236	$	147,272	$	7,532
	Held-to-maturity:
	State and municipals	150			$	162,565			$	8,325			25			$	28,238	$	1,844	$	190,803	$	10,169
	Corporate debt securities	1			4,939				61				1			2,980		1,020		7,919		1,081
		151			$	167,504			$	8,386			26			$	31,218	$	2,864	$	198,722	$	11,250
		Less Than 12 Months											12 Months or More							Total
	31-Dec-12	Number of Securities			Fair Value				Unrealized Losses				Number of Securities			Fair Value		Unrealized Losses		Fair Value		Unrealized Losses
	Available-for-sale:
	State and municipals	56			$	75,551			$	1,152			—			$	—	$	—	$	75,551	$	1,152
	Mortgage-backed securities	23			22,465				34				—			—		—		22,465		34
		112			$	98,016			$	1,186			—			$	—	$	—	$	98,016	$	1,186
	Held-to-maturity:
	State and municipals	9			$	10,301			$	146			—			$	—	$	—	$	10,301	$	146
	Corporate debt securities	—			—				—				2			5,000		1,000		5,000		1,000
		9			$	10,301			$	146			2			$	5,000	$	1,000	$	15,301	$	1,146

Loans_and_Allowance_for_Loan_L1

Loans and Allowance for Loan Losses (Tables)	12 Months Ended
	Dec. 31, 2013
Receivables [Abstract]	'
Schedule Of Financing Receivable Covered And NonCovered	'
	Major categories of loans, including loans covered under loss-share agreements with the FDIC (“covered”) and loans not covered under loss-share agreements (“non-covered”) at December 31, 2013 and 2012 are presented below (dollars in thousands):
		December 31, 2013												December 31, 2012
		Covered Loans (1)				Non-covered Loans (2)				Total				Covered Loans (1)			Non-covered Loans (2)				Total
	Commercial real estate	$	96,452			$	1,236,204			$	1,332,656			$	114,757		$	1,034,686			$	1,149,443
	Commercial construction	18,331				226,229				244,560				33,447			183,747				217,194
	Commercial and industrial	5,919				163,020				168,939				10,898			150,870				161,768
	Leases	—				16,137				16,137				—			13,209				13,209
	Total commercial	120,702				1,641,590				1,762,292				159,102			1,382,512				1,541,614
	Residential construction	16				32,418				32,434				215			34,514				34,729
	Residential mortgage	65,024				402,899				467,923				87,015			359,260				446,275
	Consumer and other	1,919				11,949				13,868				2,598			10,042				12,640
		$	187,661			$	2,088,856			$	2,276,517			$	248,930		$	1,786,328			$	2,035,258
	-1	The unpaid principal balance for covered loans was $195.4 million and $272.7 million at December 31, 2013 and 2012, respectively.
	-2	Amount includes $384.0 million and $347.2 million of acquired, non-covered loans as of December 31, 2013 and 2012, respectively.
Schedule of Changes in Accretable Yield and Carrying Value of Covered Acquired Loans	'
	The following tables detail changes in the carrying amount of covered acquired loans and accretable yield for loans receivable for the years ended December 31, 2013 and 2012 (dollars in thousands):
		2013								2012
		Accretable Yield				Carrying Yield				Accretable Yield				Carrying Yield
	Balance at beginning of period	$	(12,895	)		$	248,930			$	(8,387	)		$	320,033
	Reductions from payments and foreclosures, net	—				(69,074		)		—				(74,998		)
	Reclass from non-accretable to accretable yield	(968		)		—				(8,403		)		—
	Accretion	7,805				7,805				3,895				3,895
	Balance at end of period	$	(6,058	)		$	187,661			$	(12,895	)		$	248,930
Information About Acquired Entity Loan Portfolio	'
	The following tables present loans acquired during the years ended December 31, 2013 and 2012, at acquisition date, accounted for under ASC Topic 310-30 (dollars in thousands):
		2013				2012
	Contractually required payments receivable	$	3,781			$	52,865
	Contractual cash flows not expected to be collected (non-accretable)	(1,336		)		(11,716		)
	Expected cash flows	2,445				41,149
	Interest component of expected cash flows	(261		)		(1,954		)
	Fair value of loans acquired	$	2,184			$	39,195
Schedule of Related Party Transactions	'
	The following is a summary of loans to executive officers, directors and their affiliates for the year ended December 31, 2013 (dollars in thousands):
	Balance at beginning of year	$	21,827
	Additional borrowings	15,943
	Loan repayments	-16,249
	Balance at end of year	$	21,521
Home Equity Loans By Maturity	'
	The following table summarizes the maturity dates of our home equity lines of credit as of December 31, 2013 (dollars in thousands):
	2014	$	1,923
	2015	1,592
	2016	3,206
	2017	3,615
	2018	4,597
	Thereafter	118,044
		$	132,977
Analysis of Allowance for Loan Losses by Class of Financing Receivable	'
	An analysis of the allowance for loan losses for the years ended December 31, 2013 and 2012 is presented below (dollars in thousands):
	2013		Commercial real estate				Commercial construction				Commercial and industrial				Leases			Residential construction				Residential Mortgage				Consumer and other			Total
	Allowance for loan losses:
	Balance January 1, 2013		$	15,718			$	9,807			$	3,578			$	18		$	593			$	10,441			$	137		$	40,292
	Charge-offs		(5,492		)		(9,519		)		(3,442		)		—			—				(9,598		)		(377		)	(28,428		)
	Recoveries		1,525				2,712				1,721				—			58				1,696				27			7,739
	Provision (1)		5,084				1,879				1,017				38			(412		)		4,224				358			12,188
	Change in FDIC indemnification asset (1)		(2,083		)		1,859				263				—			(26		)		967				104			1,084
	Balance December 31, 2013		$	14,752			$	6,738			$	3,137			$	56		$	213			$	7,730			$	249		$	32,875
	Balances as of December 31, 2013:
	Specific reserves:
	Impaired loans		$	3,209			$	1,595			$	43			$	—		$	35			$	1,361			$	10		$	6,253
	Purchase credit impaired loans		2,979				691				552				—			—				1,833				23			6,078
	Total specific reserves		6,188				2,286				595				—			35				3,194				33			12,331
	General reserves		8,564				4,452				2,542				56			178				4,536				216			20,544
	Total		$	14,752			$	6,738			$	3,137			$	56		$	213			$	7,730			$	249		$	32,875
	Loans:
	Individually evaluated for impairment		$	33,950			$	12,877			$	1,525			$	—		$	356			$	14,037			$	165		$	62,910
	Purchase credit impaired loans		100,290				18,460				6,649				—			16				50,825				1,917			178,157
	Loans collectively evaluated for impairment		1,198,416				213,223				160,765				16,137			32,062				403,061				11,786			2,035,450
	Total		$	1,332,656			$	244,560			$	168,939			$	16,137		$	32,434			$	467,923			$	13,868		$	2,276,517
	2012		Commercial real estate				Commercial construction				Commercial and industrial				Leases			Residential construction				Residential Mortgage				Consumer and other			Total
	Allowance for loan losses:
	Balance January 1, 2012		$	11,789			$	10,957			$	4,338			$	18		$	699			$	3,058			$	149		$	31,008
	Charge-offs		(9,123		)		(10,985		)		(4,727		)		—			(219		)		(9,451		)		(205		)	(34,710		)
	Recoveries		753				1,467				324				—			126				862				14			3,546
	Provision (2)		8,473				1,359				2,192				—			(13		)		10,600				126			22,737
	Change in FDIC indemnification asset (2)		3,826				7,009				1,451				—			—				5,372				53			17,711
	Balance December 31, 2012		$	15,718			$	9,807			$	3,578			$	18		$	593			$	10,441			$	137		$	40,292
	Balances as of December 31, 2012:
	Specific reserves:
	Impaired loans		$	578			$	3,023			$	4			$	—		$	2			$	1,612			$	—		$	5,219
	Purchase credit impaired loans		6,518				2,704				1,569				—			—				4,000				18			14,809
	Total specific reserves		7,096				5,727				1,573				—			2				5,612				18			20,028
	General reserves		8,622				4,080				2,005				18			591				4,829				119			20,264
	Total		$	15,718			$	9,807			$	3,578			$	18		$	593			$	10,441			$	137		$	40,292
	Loans:
	Individually evaluated for impairment		$	26,076			$	19,367			$	1,682			$	—		$	361			$	16,850			$	127		$	64,463
	Purchase credit impaired loans		121,983				34,666				12,397				—			5,741				68,273				2,590			245,650
	Loans collectively evaluated for impairment		1,001,384				163,161				147,689				13,209			28,627				361,152				9,923			1,725,145
	Total		$	1,149,443			$	217,194			$	161,768			$	13,209		$	34,729			$	446,275			$	12,640		$	2,035,258
	-1	The provision for loan losses includes the "net" provision on covered loans after coverage provided by FDIC loss-share agreements, which totaled $0.6 million for the year ended December 31, 2013. This resulted in an increase in the FDIC indemnification asset of $1.1 million, which is the difference between the net provision on covered loans and the total additions to the allowance for loan losses allocable to the covered loan portfolio of $1.7 million for the year ended December 31, 2013.
	-2	The provision for loan losses includes the "net" provision on covered loans after coverage provided by FDIC loss-share agreements, which totaled $5.0 million for the year ended December 31, 2012. This resulted in an increase in the FDIC indemnification asset of $17.7 million, which is the difference between the net provision on covered loans and the total additions to the allowance for loan losses allocable to the covered loan portfolio of $22.7 million for the year ended December 31, 2012.
Schedule Of Impaired Loans	'
	The following tables present information related to impaired loans, excluding purchased impaired loans, at December 31, 2013 and 2012 (dollars in thousands):
		Impaired Loans - With Allowance												Impaired Loans - With No Allowance
	December 31, 2013	Recorded Investment				Unpaid Principal Balance				Allowances for Loan Losses Allocated				Recorded Investment			Unpaid Principal Balance
	Originated:
	Commercial real estate	$	16,261			$	16,228			$	3,164			$	17,129		$	17,116
	Commercial construction	7,239				7,218				1,582				5,536			5,902
	Commercial and industrial	934				932				42				3			—
	Residential construction	357				355				35				—			—
	Residential mortgage	8,529				8,513				1,333				3,719			3,699
	Consumer and other	104				104				10				37			37
	Total originated	33,424				33,350				6,166				26,424			26,754
	Acquired (non-covered):
	Commercial real estate	490				489				45				557			565
	Commercial construction	142				141				14				—			—
	Commercial and industrial	185				185				1				406			648
	Residential mortgage	636				636				27				1,236			1,528
	Consumer and other	—				—				—				24			21
	Total acquired (non-covered)	1,453				1,451				87				2,223			2,762
	Acquired (covered):
	Commercial real estate	—				—				—				173			183
	Commercial construction	—				—				—				400			414
	Commercial and industrial	—				—				—				3			35
	Residential mortgage	—				—				—				5,788			5,877
	Total acquired (covered)	—				—				—				6,364			6,509
	Total loans	$	34,877			$	34,801			$	6,253			$	35,011		$	36,025
		Impaired Loans - With Allowance												Impaired Loans - With No Allowance
	December 31, 2012	Recorded Investment				Unpaid Principal Balance				Allowances for Loan Losses Allocated				Recorded Investment			Unpaid Principal Balance
	Originated:
	Commercial real estate	$	7,918			$	7,891			$	562			$	17,915		$	17,867
	Commercial construction	11,838				11,815				3,022				7,581			7,552
	Commercial and industrial	99				99				1				1,352			1,351
	Residential construction	362				361				2				—			—
	Residential mortgage	10,772				10,755				1,526				4,801			4,788
	Consumer and other	—				—				—				124			122
	Total originated	30,989				30,921				5,113				31,773			31,680
	Acquired (non-covered):
	Commercial real estate	500				800				16				248			256
	Commercial and industrial	240				240				3				—			—
	Residential mortgage	601				607				87				765			895
	Consumer and other	—				—				—				5			5
	Total acquired (non-covered)	1,341				1,647				106				1,018			1,156
	Acquired (covered):
	Commercial real estate	—				—				—				548			625
	Commercial construction	—				—				—				530			561
	Commercial and industrial	—				—				—				143			176
	Residential mortgage	—				—				—				5,504			5,749
	Total acquired (covered)	—				—				—				6,725			7,111
	Total loans	$	32,330			$	32,568			$	5,219			$	39,516		$	39,947
Schedule of Average Recorded Investment and Interest Income Recognized on Impaired Loans	'
	The following tables present information related to the average recorded investment and interest income recognized on impaired loans, excluding purchased impaired loans, for the years ended December 31, 2013 and 2012 (dollars in thousands):
		2013								2012
		Average Recorded Investment				Interest Income Recognized				Average Recorded Investment				Interest Income Recognized
	Impaired loans with allowance:
	Commercial real estate	$	20,205			$	839			$	19,414			$	2,376
	Commercial construction	6,700				246				17,074				1,758
	Commercial and industrial	499				28				1,923				177
	Residential construction	367				12				272				18
	Residential mortgage	11,074				381				13,955				952
	Consumer and other	23				—				—				—
	Total impaired loans with allowance	$	38,868			$	1,506			$	52,638			$	5,281
	Impaired loans with no allowance:
	Commercial real estate	$	12,724			$	600			$	22,673			$	2,271
	Commercial construction	8,192				346				19,708				3,042
	Commercial and industrial	592				30				2,051				276
	Residential construction	—				—				473				96
	Residential mortgage	10,614				357				19,909				2,205
	Consumer and other	40				—				202				18
	Total impaired loans with no allowance	$	32,162			$	1,333			$	65,016			$	7,908
Aging of Financing Receivables	'
	The following tables present an aging analysis of the recorded investment in the Company's loans at December 31, 2013 and 2012(dollars in thousands):
	December 31, 2013	30-59 Days Past Due				60-89 Days Past Due				Greater than 90 Days Past Due				Non-Accrual			Total Past Due				Current				Total Loans
	Originated:
	Commercial real estate	$	353			$	—			$	—			$	6,044		$	6,397			$	1,008,236			$	1,014,633
	Commercial construction	14				20				—				2,801			2,835				199,305				202,140
	Commercial and industrial	533				10				—				245			788				138,779				139,567
	Leases	—				—				—				—			—				16,137				16,137
	Residential construction	—				—				—				—			—				29,636				29,636
	Residential mortgage	1,417				248				—				5,102			6,767				287,893				294,660
	Consumer and other	—				—				—				37			37				8,066				8,103
	Total originated	2,317				278				—				14,229			16,824				1,688,052				1,704,876
	Acquired (non-covered):
	Commercial real estate	116				—				—				605			721				220,850				221,571
	Commercial construction	50				—				—				—			50				24,039				24,089
	Commercial and industrial	—				5				—				591			596				22,857				23,453
	Residential construction	—				—				—				—			—				2,782				2,782
	Residential mortgage	950				514				—				1,665			3,129				105,110				108,239
	Consumer and other	108				1				—				24			133				3,713				3,846
	Total acquired (non-covered)	1,224				520				—				2,885			4,629				379,351				383,980
	Acquired (covered):
	Commercial real estate	1,145				848				—				8,086			10,079				86,373				96,452
	Commercial construction	201				38				—				5,111			5,350				12,981				18,331
	Commercial and industrial	—				47				—				640			687				5,232				5,919
	Residential construction	—				—				—				—			—				16				16
	Residential mortgage	313				28				—				9,818			10,159				54,865				65,024
	Consumer and other	8				2				—				90			100				1,819				1,919
	Total acquired (covered)	1,667				963				—				23,745			26,375				161,286				187,661
	Total loans	$	5,208			$	1,761			$	—			$	40,859		$	47,828			$	2,228,689			$	2,276,517
	December 31, 2012	30-59 Days Past Due				60-89 Days Past Due				Greater than 90 Days Past Due				Non-Accrual			Total Past Due				Current				Total Loans
	Originated:
	Commercial real estate	$	731			$	1,080			$	—			$	3,522		$	5,333			$	818,764			$	824,097
	Commercial construction	369				—				—				7,586			7,955				145,924				153,879
	Commercial and industrial	243				8				—				1,121			1,372				123,040				124,412
	Leases	—				—				—				—			—				13,209				13,209
	Residential construction	—				—				—				—			—				21,704				21,704
	Residential mortgage	1,205				2,133				—				7,356			10,694				282,037				292,731
	Consumer and other	9				127				—				—			136				8,988				9,124
	Total originated	2,557				3,348				—				19,585			25,490				1,413,666				1,439,156
	Acquired (non-covered):
	Commercial real estate	1,255				—				—				1,179			2,434				208,155				210,589
	Commercial construction	315				—				—				—			315				29,553				29,868
	Commercial and industrial	113				—				—				248			361				26,097				26,458
	Residential construction	136				—				—				—			136				12,674				12,810
	Residential mortgage	960				—				—				1,425			2,385				64,144				66,529
	Consumer and other	1				1				—				5			7				911				918
	Total acquired (non-covered)	2,780				1				—				2,857			5,638				341,534				347,172
	Acquired (covered):
	Commercial real estate	5,257				84				—				12,730			18,071				96,686				114,757
	Commercial construction	—				113				—				14,961			15,074				18,373				33,447
	Commercial and industrial	55				—				—				1,170			1,225				9,673				10,898
	Residential construction	—				—				—				—			—				215				215
	Residential mortgage	3,593				352				—				18,057			22,002				65,013				87,015
	Consumer and other	70				1				—				63			134				2,464				2,598
	Total acquired (covered)	8,975				550				—				46,981			56,506				192,424				248,930
	Total loans	$	14,312			$	3,899			$	—			$	69,423		$	87,634			$	1,947,624			$	2,035,258
Financing Receivable Credit Quality Indicators	'
	The following tables present the recorded investment in the Company’s loans, by credit quality indicator, at December 31, 2013 and 2012(dollars in thousands):
	December 31, 2013	Total				Pass Credits				Special Mention				Substandard			Doubtful				Loss
	Originated:
	Commercial real estate	$	1,014,633			$	930,554			$	37,685			$	46,394		$	—			$	—
	Commercial construction	202,140				175,365				13,113				13,662			—				—
	Commercial and industrial	139,567				131,658				5,411				2,498			—				—
	Leases	16,137				16,137				—				—			—				—
	Residential construction	29,636				28,160				1,120				356			—				—
	Residential mortgage	294,660				258,042				19,234				17,384			—				—
	Consumer and other	8,103				7,807				177				119			—				—
	Total originated	1,704,876				1,547,723				76,740				80,413			—				—
	Total acquired (non-covered):
	Commercial real estate	221,571				195,526				17,343				8,702			—				—
	Commercial construction	24,089				21,126				922				2,041			—				—
	Commercial and industrial	23,453				18,681				3,328				1,444			—				—
	Residential construction	2,782				2,782				—				—			—				—
	Residential mortgage	108,239				91,847				10,766				5,626			—				—
	Consumer and other	3,846				3,760				62				24			—				—
	Total acquired (non-covered):	383,980				333,722				32,421				17,837			—				—
	Acquired (covered):
	Commercial real estate	96,452				61,091				12,831				17,929			4,601				—
	Commercial construction	18,331				9,756				1,397				6,751			427				—
	Commercial and industrial	5,919				4,231				796				332			560				—
	Residential construction	16				—				16				—			—				—
	Residential mortgage	65,024				36,744				13,246				10,296			4,738				—
	Consumer and other	1,919				1,726				103				90			—				—
	Total acquired (covered)	187,661				113,548				28,389				35,398			10,326				—
	Total loans	$	2,276,517			$	1,994,993			$	137,550			$	133,648		$	10,326			$	—
	31-Dec-12	Total				Pass Credits				Special Mention				Substandard			Doubtful				Loss
	Originated:
	Commercial real estate	$	824,097			$	739,050			$	39,562			$	45,485		$	—			$	—
	Commercial construction	153,879				115,996				18,088				19,795			—				—
	Commercial and industrial	124,412				117,546				4,385				2,481			—				—
	Leases	13,209				13,209				—				—			—				—
	Residential construction	21,704				19,546				440				1,718			—				—
	Residential mortgage	292,731				250,083				21,831				20,817			—				—
	Consumer and other	9,124				8,760				320				44			—				—
	Total originated	1,439,156				1,264,190				84,626				90,340			—				—
	Acquired (non-covered):
	Commercial real estate	210,589				192,016				6,993				11,080			500				—
	Commercial construction	29,868				24,060				2,228				3,580			—				—
	Commercial and industrial	26,458				24,491				1,401				326			—				240
	Residential construction	12,810				7,086				176				5,548			—				—
	Residential mortgage	66,529				57,965				4,445				4,119			—				—
	Consumer and other	918				903				10				5			—				—
	Total acquired (non-covered)	347,172				306,521				15,253				24,658			500				240
	Acquired (covered):
	Commercial real estate	114,757				69,401				19,744				14,960			10,642				10
	Commercial construction	33,447				14,605				1,493				9,715			7,634				—
	Commercial and industrial	10,898				6,251				2,745				1,118			784				—
	Residential construction	215				16				199				—			—				—
	Residential mortgage	87,015				46,039				17,069				11,956			11,808				143
	Consumer and other	2,598				2,237				291				58			11				1
	Total acquired (covered)	248,930				138,549				41,541				37,807			30,879				154
	Total loans	$	2,035,258			$	1,709,260			$	141,420			$	152,805		$	31,379			$	394
Troubled Debt Restructurings on Financing Receivables	'
	The following tables provide a summary of loans modified as TDRs at December 31, 2013 and 2012 (dollars in thousands):
		Accrual				Nonaccrual				Total TDRs				Allowance for Loan Losses Allocated
	December 31, 2013
	Commercial real estate	$	3,986			$	1,107			$	5,093			$	767
	Commercial construction	5,472				274				5,746				520
	Commercial and industrial	662				—				662				36
	Residential mortgage	6,545				625				7,170				476
	Consumer and other	105				37				142				11
	Total modifications	$	16,770			$	2,043			$	18,813			$	1,810
	Total contracts	43				10				53
		Accrual				Nonaccrual				Total TDRs				Allowance for Loan Losses Allocated
	31-Dec-12
	Commercial real estate	$	16,010			$	2,314			$	18,324			$	904
	Commercial construction	11,420				1,030				12,450				1,960
	Commercial and industrial	322				1,029				1,351				—
	Residential mortgage	8,015				4,639				12,654				1,165
	Consumer and other	122				11				133				—
	Total modifications	$	35,889			$	9,023			$	44,912			$	4,029
	Total contracts	44				20				64
New Troubled Debt Restructurings By Modification Category	'
	The following tables present new TDRs by modification category for the years ended December 31, 2013 and 2012 (dollars in thousands). All balances represent the recorded investment as of the end of the period in which the modification was made.
		2013
		Rate Modifications				Term Modifications				Interest only Modifications				Payment Modifications			Combination Modifications				Total Modifications
	Commercial real estate	$	101			$	648			$	331			$	—		$	1,035			$	2,115
	Commercial construction	128				—				152				—			827				1,107
	Commercial and industrial	—				129				536				—			—				665
	Residential mortgage	452				84				1,076				—			573				2,185
	Consumer and other	—				23				—				—			—				23
	Total modifications	$	681			$	884			$	2,095			$	—		$	2,435			$	6,095
		2012
		Rate Modifications				Term Modifications				Interest only Modifications				Payment Modifications			Combination Modifications				Total Modifications
	Commercial real estate	$	71			$	1,374			$	2,870			$	—		$	10,503			$	14,818
	Commercial construction	—				1,897				663				—			2,238				4,798
	Commercial and industrial	—				31				—				—			290				321
	Residential mortgage	—				—				2,679				829			2,726				6,234
	Consumer and other	—				—				11				—			—				11
	Total modifications	$	71			$	3,302			$	6,223			$	829		$	15,757			$	26,182
Loans Modified in Troubled Debt Restructurings During the Previous 12 months Which Experienced a Payment Default	'
	The following tables summarize the period-end balance for loans modified and classified as TDRs in the previous 12 months for which a payment default has occurred during the years ended December 31, 2013 and 2012 (dollars in thousands). The Company defines payment default as movement of the restructuring to nonaccrual status, foreclosure or charge-off, whichever occurs first.
		2013
	Commercial real estate	$	5,906
	Commercial construction	29
	Commercial and industrial	630
	Residential mortgage	668
		2012
	Commercial real estate	$	337
	Residential mortgage	1,438
Loan Sale Activity On Single Family Residential First Mortgage Loans Originated For Sale On A Presold Basis	'
	Loan sale activity for the years ended December 31, 2013, 2012 and 2011 is summarized below (dollars in thousands):
		2013				2012				2011
	Loans held for sale	$	30,899			$	57,414			$	9,596
	Proceeds from sales of loans held for sale	352,130				233,276				91,942
	Mortgage fees	8,979				6,169				2,230

FDIC_Indemnification_Asset_Tab

FDIC Indemnification Asset (Tables)	12 Months Ended
	Dec. 31, 2013
FDIC Indemnification Asset [Abstract]	'
FDIC Indemnification Asset Roll Forward	'
	The following tables present activity for the FDIC indemnification asset for the years ended December 31, 2013 and 2012 (dollars in thousands):
		2013			2012
	Balance at beginning of period	$	53,519		$	91,851
	Accretion of present value discount, net	192			1,391
	Post-acquisition adjustments	(2,248		)	20,493
	Receipt of payments from FDIC	(34,577		)	(60,216		)
	Balance at end of period	$	16,886		$	53,519

Premises_and_Equipment_Tables

Premises and Equipment (Tables)	12 Months Ended
	Dec. 31, 2013
Property, Plant and Equipment [Abstract]	'
Property, Plant and Equipment	'
	The following tables present a summary of the Company’s premises and equipment at December 31, 2013 and 2012 (dollars in thousands):
		2013			2012
	Land	$	23,264		$	20,116
	Buildings and leasehold improvements	49,689			42,584
	Furniture, fixtures and equipment	20,290			16,654
	Construction in progress	178			474
	Premises and equipment, gross	93,421			79,828
	Less accumulated depreciation and amortization	(17,295		)	(13,213		)
	Premises and equipment, net	$	76,126		$	66,615
Operating Leases of Lessee Disclosure	'
	At December 31, 2013, future minimum rental commitments under non-cancellable operating leases that have a remaining life in excess of one year are as follows (dollars in thousands):
	2014	$	2,776
	2015	2,432
	2016	2,190
	2017	1,988
	2018	1,861
	Thereafter	5,421
	Total	$	16,668

Derivatives_Tables

Derivatives (Tables)	12 Months Ended
	Dec. 31, 2013
Derivative Instruments and Hedging Activities Disclosure [Abstract]	'
Schedule of Interest Rate Derivatives	'
	The following tables present the fair value of the Company’s derivatives at December 31, 2013 and 2012 (dollars in thousands):
		December 31, 2013								December 31, 2012
		Notional Amount		Balance Sheet Location		Fair Value				Notional Amount				Balance Sheet Location	Fair Value
	Derivative assets:
	Derivatives designated as hedging instruments:
	Interest rate cap	$	250,000	Other assets		$	—			$	250,000			Other assets	$	40
	Interest rate swap	125,000		Other assets		2,744				—				Other assets	—
		$	375,000			$	2,744			$	250,000				$	40
	Derivatives not designated as hedging instruments:
	Interest rate swaps	$	27,965	Other assets		$	424			$	11,499			Other assets	$	672
	Interest rate cap/floor	3,256		Other assets		98				6,524				Other assets	330
		$	31,221			$	522			$	18,023				$	1,002
	Derivative liabilities:
	Derivatives not designated as hedging instruments:
	Interest rate swaps	$	31,221	Accrued expenses and other liabilities		$	522			$	18,023			Accrued expenses and other liabilities	$	1,002
Offsetting Assets And Liabilities	'
	Information about financial instruments that are eligible for offset in the consolidated balance sheet at December 31, 2013 and 2012 is presented in the following tables (dollar amounts in thousands):
												Gross Amounts Not Offset in the
												Consolidated Balance Sheets
		Gross Amount Recognized		Gross Amounts Offset in the				Net Amounts				Financial Instruments			Collateral Held/Pledged		Net
				Consolidated Balance Sheets				Presented in the
								Consolidated Balance Sheets
	December 31, 2013
	Derivative assets	$	3,266	$	—			$	3,266			$	—		$	930	$	2,336
	Derivative liabilities	522		—				522				—			522		—
	Total derivative instruments	$	3,788	$	—			$	3,788			$	—		$	1,452	$	2,336
	December 31, 2012
	Derivative assets	$	1,042	$	—			$	1,042			$	—		$	—	$	1,042
	Derivative liabilities	1,002		—				1,002				—			1,002		—
	Total derivative instruments	$	2,044	$	—			$	2,044			$	—		$	1,002	$	1,042
Schedule of Cash Flow Hedges Included in Accumulated Other Comprehensive Income (Loss)	'
	The following tables present the losses recorded in the Consolidated Statements of Income and Consolidated Statements of Comprehensive Income, respectively, relating to derivative instruments designated as cash flow hedges for the years ended December 31, 2013, 2012 and 2011 (dollars in thousands, net of tax):
		2013		2012				2011
	Derivatives designated as hedging instruments:
	Amount of net gain (losses) recorded in OCI (effective portion)	$	1,662	$	(364	)		$	(3,304	)
	Amount of net losses reclassified from OCI to earnings (1)	6,103		4,878				3,146
	(1) Amount recorded in interest expense on demand deposits in the Consolidated Statements of Income

Goodwill_and_Other_Intangibles1

Goodwill and Other Intangibles (Tables)	12 Months Ended
	Dec. 31, 2013
Goodwill and Intangible Assets Disclosure [Abstract]	'
Schedule of Intangible Assets and Goodwill	'
	The following tables present activity for goodwill and other intangible assets for the years ended December 31, 2013 and 2012 (dollars in thousands):
		Goodwill			Other Intangibles			Total
	Balance at December 31, 2011	$	26,129		$	2,986		$	29,115
	Acquisitions	982			2,663			3,645
	Amortization	—			(567		)	(567		)
	Balance at December 31, 2012	$	27,111		$	5,082		$	32,193
	Acquisitions	1,273			2,676			3,949
	Amortization	—			(1,176		)	(1,176		)
	Balance at December 31, 2013	28,384			6,582			34,966
Schedule of Core Deposit Intangible Assets	'
	The following tables present the gross carrying amount and accumulated amortization at December 31, 2013 and 2012 for the Company’s core deposit intangible assets, which are the only identifiable intangible assets subject to amortization (dollars in thousands):
		2013			2012
	Gross carrying amount	$	9,914		$	7,238
	Accumulated amortization	(3,332		)	(2,156		)
	Net book value	$	6,582		$	5,082
Schedule of Expected Amortization Expense	'
	The following table presents estimated future amortization expense for other intangible assets (dollars in thousands):
	2014	$	1,438
	2015	1,263
	2016	1,112
	2017	974
	2018	974
	Thereafter	821
	Total	$	6,582

Deposits_Table

Deposits (Table)	12 Months Ended
	Dec. 31, 2013
Maturities of Time Deposits [Abstract]	'
Maturities Of Time Deposits	'
	The following tables present the scheduled maturities of time deposits at December 31, 2013 (dollars in thousands):
		Less than $100,000		$100,000 and Greater		Total
	2014	$	217,752	$	601,819	$	819,571
	2015	29,862		101,304		131,166
	2016	7,535		64,608		72,143
	2017	12,083		25,719		37,802
	2018	2,634		11,901		14,535
	Thereafter	1,722		5,860		7,582
	Total	$	271,588	$	811,211	$	1,082,799

ShortTerm_Borrowings_Tables

Short-Term Borrowings (Tables)	12 Months Ended
	Dec. 31, 2013
Debt Disclosure [Abstract]	'
Schedule of Short Term Debt	'
	The following table presents the Company’s short-term borrowings at December 31, 2013 and 2012 (dollars in thousands):
		2013			2012
	Repurchase agreements	$	27,202		$	30,332
	Advances from FHLB	97,300			2,000
	Federal funds purchased	1,090			50
	Total short-term borrowings	$	125,592		$	32,382
Summary of Additional Information on Short Term Borrowings	'
	Additional information on the Company’s short-term borrowings at and for the years ended December 31, 2013, 2012 and 2011 is presented in the following table (dollars in thousands):
		2013			2012			2011
	Maximum outstanding at any month-end during the year	$	143,674		$	40,149		$	100,728
	Average outstanding balance	88,635			30,573			49,146
	Average interest rate for the year	0.49		%	1.11		%	0.99		%
	Average interest rate at year end	0.39		%	0.51		%	0.92		%

LongTerm_Debt_Tables

Long-Term Debt (Tables)	12 Months Ended
	Dec. 31, 2013
Debt Instruments [Abstract]	'
Schedule of Debt	'
	The following tables present the Company’s long-term debt at December 31, 2013 and 2012 (dollars in thousands):
		2013				2012
	FHLB advances	$	51,100			$	62,000
	Term loan	28,875				—
	Junior subordinated debentures	23,713				26,173
		103,688				88,173
	Less: FHLB prepayment penalty	2,179				—
	Total	$	101,509			$	88,173
Schedule of Long-term Debt Instruments	'
	The following table details the Company's FHLB advances outstanding at December 31, 2013 and 2012 (dollars in thousands):
	Maturity		Interest Rate		2013				2012
	Dec-14		3.62%		$	—			$	2,000
	Dec-14		3.87%		—				15,000
	Jan-15		1.00%		100				—
	Aug-15		2.37%		6,000				—
	Sep-17		3.73%		—				10,000
	Sep-17		3.66%		—				10,000
	Jan-18		2.15%		15,000				15,000
	Jan-18		2.27%		10,000				10,000
	Jan-20		0.47%		10,000				—
	Jan-20		0.47%		10,000				—
	Total				$	51,100			$	62,000
Schedule Of Junior Subordinated Debt Instruments	'
	The following tables detail the junior subordinated debentures outstanding at December 31, 2013 and 2012 (dollars in thousands):
		Date of issuance		Shares issued		Interest rate		Maturity date
										2013		2012
	BNC Bancorp	9/14/12	-1	2,435		8.00% fixed		6/30/20		$	—	$	2,460
	BNC Bancorp Capital Trust I	4/3/03		5,000		Libor plus 3.25%		4/15/33		5,155		5,155
	BNC Bancorp Capital Trust II	3/11/04		6,000		Libor plus 2.80%		4/7/34		6,186		6,186
	BNC Capital Trust III	9/23/04		5,000		Libor plus 2.40%		9/23/34		5,155		5,155
	BNC Capital Trust IV	9/27/06		7,000		Libor plus 1.70%		12/31/36		7,217		7,217
	Total									$	23,713	$	26,173
	-1	This subordinated debt obligation was assumed in the purchase of KeySource on September 14, 2012. On July 1, 2013, the Company exercised its redemption option on this debenture.

Accumulated_Other_Comprehensiv1

Accumulated Other Comprehensive Income (Tables)	12 Months Ended
	Dec. 31, 2013
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]	'
Schedule of Accumulated Other Comprehensive Income	'
	The following tables present the changes in accumulated other comprehensive income, net of taxes, for the years ended December 31, 2013 and 2012 (dollars in thousands):
		Unrealized Holding Gains (Losses) on Available-For-Sale Investment Securities				Unrealized Holding Gains on Investment Securities Transferred from Available-For-Sale to Held-to-Maturity			Unrealized Holding Gains (Losses) on Cash Flow Hedging Activities			Total Accumulated Other Comprehensive Income
	Balance at December 31, 2012	$	8,872			$	2,881		$	(6,324	)	$	5,429
	Other comprehensive income (loss) before reclassifications	(9,625		)		—			1,662			(7,963		)
	Amounts reclassified from accumulated other comprehensive income	26				(289		)	6,103			5,840
	Amounts transferred as a result of the reclassification of securities from available-for-sale to held-to-maturity	(1,219		)		1,219			—			—
	Net current period other comprehensive income (loss)	(10,818		)		930			7,765			(2,123		)
	Balance at December 31, 2013	$	(1,946	)		$	3,811		$	1,441		$	3,306
		Unrealized Holding Gains on Available-For-Sale Investment Securities				Unrealized Holding Gains on Investment Securities Transferred from Available-For-Sale to Held-to-Maturity			Unrealized Holding Losses on Cash Flow Hedging Activities			Total Accumulated Other Comprehensive Income
	Balance at December 31, 2011	$	8,637			$	3,211		$	(10,838	)	$	1,010
	Other comprehensive income (loss) before reclassifications	2,094				—			(364		)	1,730
	Amounts reclassified from accumulated other comprehensive income	(1,859		)		(330		)	4,878			2,689
	Net current period other comprehensive income (loss)	235				(330		)	4,514			4,419
	Balance at December 31, 2012	$	8,872			$	2,881		$	(6,324	)	$	5,429
Reclassification Out Of Accumulated Other Comprehensive Income	'
	The following table details reclassification adjustments from accumulated other comprehensive income for the years ended December 31, 2013 and 2012 (dollars in thousands):
	Component of accumulated other comprehensive income		2013				Affected Line Item in the Consolidated Statement of Income
	Unrealized holding gains - investment securities available-for-sale		$	(42	)		Gain (loss) on sale of investment securities, net
			16				Income tax benefit (expense)
			(26		)		Total, net of tax
	Unrealized holding gains – investment securities transferred from available-for-sale to held-to-maturity (1)		623				Interest income - investment securities
			(334		)		Income tax benefit (expense)
			289				Total, net of tax
	Unrealized holding losses – cash flow hedge instruments		(9,863		)		Interest expense - demand deposits
			3,760				Income tax benefit (expense)
			(6,103		)		Total, net of tax
	Total reclassifications for the period		$	(5,840	)		Total, net of tax
	Component of accumulated other comprehensive income		2012				Affected Line Item in the Consolidated Statement of Income
	Unrealized holding gains – investment securities available-for-sale		$	3,026			Gain (loss) on sale of investment securities, net
			(1,167		)		Income tax benefit (expense)
			1,859				Total, net of tax
	Unrealized holding gains – investment securities transferred from available-for-sale to held-to-maturity (1)		538				Interest income - investment securities
			(208		)		Income tax benefit (expense)
			330				Total, net of tax
	Unrealized holding losses – cash flow hedge instruments		(7,940		)		Interest expense - demand deposits
			3,062				Income tax benefit (expense)
			(4,878		)		Total, net of tax
	Total reclassifications for the period		$	(2,689	)		Total, net of tax
	-1	The amortization of the unrealized holding gains in accumulated other comprehensive income at the date of transfer partially offsets the amortization of the difference between the par value and fair value of the investment securities at the date of transfer. Both components are amortized as an adjustment of yield.

Fair_Value_Measurements_Tables

Fair Value Measurements (Tables)	12 Months Ended
	Dec. 31, 2013
Fair Value Disclosures [Abstract]	'
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis	'
	The following tables present information about certain assets and liabilities measured at fair value on a recurring basis at December 31, 2013 and 2012 (dollars in thousands):
			Total Measured at Fair Value			Fair Value Measured Using
	Description					Level 1				Level 2			Level 3
	December 31, 2013
	Assets:
	Investment securities available-for-sale:
	U.S. Government agencies		$	15,061		$	—			$	15,061		$	—
	State and municipals		191,263			—				191,263			—
	Corporate debt securities		8,889			—				8,889			—
	Other debt securities		4,380			—				4,380			—
	Equity securities		922			922				—			—
	Mortgage-backed securities:
	Residential government sponsored		42,014			—				42,014			—
	Other government sponsored		7,888			—				7,888			—
	Total investment securities available-for-sale		270,417			922				269,495			—
	Derivative instruments:
	Interest rate swap - cash flow hedge		2,744			—				2,744			—
	Interest rate cap - cash flow hedge		—			—				—			—
	Interest rate swap - not designated		424			—				424			—
	Interest rate cap/floor - not designated		98			—				98			—
	Total derivative instruments		3,266			—				3,266			—
	Total assets measured at fair value on a recurring basis		$	273,683		$	922			$	272,761		$	—
	Liabilities:
	Interest rate swap - not designated		$	522		$	—			$	522		$	—
	Total liabilities measured at fair value on a recurring basis		$	522		$	—			$	522		$	—
			Total Measured at Fair Value			Fair Value Measured Using
	Description					Level 1				Level 2			Level 3
	December 31, 2012
	Assets:
	Investment securities available-for-sale:
	U.S. Government agencies		$	16,395		$	—			$	16,395		$	—
	State and municipals		223,886			—				223,886			—
	Mortgage-backed securities:
	Residential government sponsored		86,890			—				86,890			—
	Other government sponsored		14,368			—				14,368			—
	Total investment securities available-for-sale		341,539			—				341,539			—
	Derivative instruments:
	Interest rate cap - cash flow hedge		40			—				40			—
	Interest rate swap - not designated		672			—				672			—
	Interest rate cap/floor - not designated		330			—				330			—
	Total derivative instruments		1,042			—				1,042			—
	Total assets measured at fair value on a recurring basis		$	342,581		$	—			$	342,581		$	—
	Liabilities:
	Interest rate swap - not designated		$	1,002		$	—			$	1,002		$	—
	Total liabilities measured at fair value on a recurring basis		$	1,002		$	—			$	1,002		$	—
Fair Value Measurements, Nonrecurring	'
	The following tables present information about certain assets and liabilities measured at fair value on a nonrecurring basis at December 31, 2013 and 2012 (dollars in thousands):
			Total Measured at Fair Value			Fair Value Measured Using
	Description					Level 1				Level 2			Level 3
	December 31, 2013
	Loans held for sale		$	30,899		$	—			$	30,899		$	—
	Impaired loans		228,736			—				—			228,736
	Other real estate owned		47,606			—				—			47,606
	Total assets measured at fair value on a nonrecurring basis		$	307,241		$	—			$	30,899		$	276,342
	December 31, 2012
	Loans held for sale		$	57,414		$	—			$	57,414		$	—
	Impaired loans		290,085			—				—			290,085
	Other real estate owned		51,913			—				—			51,913
	Total assets measured at fair value on a nonrecurring basis		$	399,412		$	—			$	57,414		$	341,998
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis, Valuation Techniques	'
	The following table presents the valuation and unobservable inputs for Level 3 assets and liabilities measured at fair value on a nonrecurring basis at December 31, 2013 (dollars in thousands):
	Description		Fair Value			Valuation Methodology		Unobservable Inputs		Range of Inputs
	Impaired loans		$	228,736		Appraised value		Discount to reflect current market conditions and ultimate collectability		0% - 20%
	Other real estate owned		$	47,606		Appraised value		Discount to reflect current market conditions		0% - 20%
Fair Value, by Balance Sheet Grouping	'
	The following tables present the carrying value and estimated fair values of the Company’s financial instruments, including those that are not measured and reported at fair value on a recurring basis or nonrecurring basis, at December 31, 2013 and 2012 (dollars in thousands):
	31-Dec-13	Carrying Value			Fair Value				Level 1			Level 2			Level 3
	Financial assets:
	Cash and cash equivalents	$	108,390		$	108,390			$	108,390		$	—		$	—
	Investment securities available-for-sale	270,417			270,417				—			270,417			—
	Investment securities held-to-maturity	247,378			236,507				—			236,507			—
	Federal Home Loan Bank stock	10,720			10,720				—			10,720			—
	Loans held for sale	30,899			30,899				—			30,899			—
	Loans receivable, net	2,243,642			2,266,455				—			2,037,719			228,736
	Accrued interest receivable	12,955			12,955				—			12,955			—
	FDIC indemnification asset	16,886			16,886				—			—			16,886
	Investment in bank-owned life insurance	78,439			78,439				—			78,439			—
	Interest rate swap derivative - cash flow hedge	2,744			2,744				—			2,744			—
	Interest rate cap derivative - cash flow hedge	—			—				—			—			—
	Interest rate swap derivative - not designated	424			424				—			424			—
	Interest rate cap/floor derivative - not designated	98			98				—			98			—
	Financial liabilities:
	Demand deposits and savings	$	1,623,931		$	1,623,931			$	—		$	1,623,931		$	—
	Time deposits	1,082,799			1,087,333				—			1,087,333			—
	Short-term borrowings	125,592			126,126				—			126,126			—
	Long-term debt	101,509			97,983				—			97,983			—
	Accrued interest payable	1,434			1,434				—			1,434			—
	Interest rate swap derivative - not designated	522			522				—			522			—
	31-Dec-12	Carrying Value			Fair Value				Level 1			Level 2			Level 3
	Financial assets:
	Cash and cash equivalents	$	234,071		$	234,071			$	234,071		$	—		$	—
	Investment securities available-for-sale	341,539			341,539				—			341,539			—
	Investment securities held-to-maturity	114,805			118,235				—			118,235			—
	Federal Home Loan Bank stock	7,604			7,604				—			7,604			—
	Loans held for sale	57,414			57,414				—			57,414			—
	Loans receivable, net	1,994,966			1,976,745				—			1,686,660			290,085
	Accrued interest receivable	11,363			11,363				—			11,363			—
	FDIC indemnification asset	53,519			53,519				—			—			53,519
	Investment in bank-owned life insurance	70,756			70,756				—			70,756			—
	Interest rate cap derivative - cash flow hedge	40			40				—			40			—
	Interest rate swap derivative - not designated	672			672				—			672			—
	Interest rate cap/floor derivative - not designated	330			330				—			330			—
	Financial liabilities:
	Demand deposits and savings	$	1,496,694		$	1,496,694			$	—		$	1,496,694		$	—
	Time deposits	1,159,615			1,170,560				—			1,170,560			—
	Short-term borrowings	32,382			32,382				—			32,382			—
	Long-term debt	88,173			83,292				—			83,292			—
	Accrued interest payable	2,158			2,158				—			2,158			—
	Interest rate swap derivative - not designated	1,002			1,002				—			1,002			—

Regulatory_Capital_Tables

Regulatory Capital (Tables)	12 Months Ended
	Dec. 31, 2013
Banking and Thrift [Abstract]	'
Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations	'
	The following tables present BNC’s regulatory capital ratios at December 31, 2013 and 2012 (dollars in thousands):
									For capital adequacy purposes				To be well capitalized under prompt corrective action provisions
			Actual						Minimum				Minimum
	31-Dec-13		Amount				Ratio		Amount		Ratio		Amount		Ratio
	Total capital (to risk weighted assets)		$	313,624			12.66	%	$	198,187	8	%	$	247,734	10	%
	Tier 1 capital (to risk weighted assets)		282,634				11.41	%	99,094		4	%	148,640		6	%
	Tier 1 capital (to average assets)		282,634				8.96	%	126,118		4	%	157,647		5	%
									For capital adequacy purposes				To be well capitalized under prompt corrective action provisions
			Actual						Minimum				Minimum
	31-Dec-12		Amount				Ratio		Amount		Ratio		Amount		Ratio
	Total capital (to risk weighted assets)		$	293,244			13.91	%	$	168,705	8	%	$	210,882	10	%
	Tier 1 capital (to risk weighted assets)		269,192				12.77	%	84,353		4	%	126,529		6	%
	Tier 1 capital (to average assets)		269,192				9.71	%	110,900		4	%	138,625		5	%
	The Company is also subject to these capital requirements. The following table presents the Company’s regulatory capital ratios at December 31, 2013 and 2012:
		2013			2012
	Total capital (to risk-weighted assets)	11.57	%		13.8	%
	Tier 1 capital (to risk-weighted assets)	10.33	%		12.67	%
	Tier 1 capital (to average assets)	8.12	%		9.65	%

Income_Taxes_Tables

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2013
Income Tax Disclosure [Abstract]	'
Schedule of Components of Income Tax Expense (Benefit)	'
	The following tables present the Company’s income tax expense (benefit) for the years ended December 31, 2013, 2012 and 2011 (dollars in thousands):
		2013			2012			2011
	Current income tax provision:
	Federal	$	(314	)	$	(140	)	$	581
	State	554			350			742
	Total current income tax provision	240			210			1,323
	Deferred income tax provision (benefit):
	Federal	2,382			(2,244		)	(2,821		)
	State	1,423			334			(285		)
	Total deferred income tax provision (benefit)	3,805			(1,910		)	(3,106		)
	Total income tax provision (benefit)	$	4,045		$	(1,700	)	$	(1,783	)
Schedule of Effective Income Tax Rate Reconciliation	'
	The following tables present the difference between income tax expense (benefit) and the amount computed by applying the statutory income tax rate for the years ended December 31, 2013, 2012 and 2011 (dollars in thousands):
		2013			2012			2011
	Tax at statutory federal tax rate	$	7,239		$	2,976		$	1,750
	State income tax, net of federal benefit	1,304			451			301
	Tax exempt interest income	(4,008		)	(3,241		)	(3,306		)
	Income from life insurance	(789		)	(601		)	(546		)
	Gain on acquisition	—			(1,690		)	—
	Other	299			405			18
	Total income tax provision (benefit)	$	4,045		$	(1,700	)	$	(1,783	)
Schedule of Deferred Tax Assets and Liabilities	'
	Significant components of deferred tax assets and liabilities at December 31, 2013 and 2012 were as follows (dollars in thousands):
		2013			2012
	Deferred income tax assets:
	Allowance for loan losses	$	10,660		$	10,841
	Net operating loss carryforwards	10,593			6,975
	Deferred compensation	2,203			2,112
	Unrealized loss on interest rate cap	—			3,662
	Other real estate owned writedowns	3,536			3,481
	AMT credit carryforward	3,488			3,323
	Interest on nonaccrual loans	110			113
	Stock-based compensation	546			522
	Fair value adjustments from acquisitions	6,273			8,672
	Other	1,089			922
	Total deferred income tax assets	38,498			40,623
	Deferred income tax liabilities:
	Premises and equipment	2,978			1,932
	Leasing activities	702			486
	Unrealized gains on investment securities and derivatives	2,235			7,373
	Loan costs	979			—
	Core deposit intangibles	2,306			1,755
	FDIC acquisitions	4,424			7,494
	Other	1,554			1,934
	Total deferred income tax liabilities	15,178			20,974
	Less valuation allowance	360			—
	Net deferred income tax asset	$	22,960		$	19,649

Commitments_and_Contingencies_

Commitments and Contingencies (Tables)	12 Months Ended
	Dec. 31, 2013
Commitments and Contingencies Disclosure [Abstract]	'
Schedule of Fair Value Off Balance Sheet Risks	'
	The following tables present the outstanding off-balance sheet financial instruments whose contract amounts represent potential credit risk at December 31, 2013 and 2012 (dollars in thousands):
		2013		2012
	Commitments under unfunded loans and lines of credit	$	377,021	$	272,308
	Letters of credit	7,926		12,172
	Unused credit card lines	4,120		4,536
	Unfunded commitments for unconsolidated investments	7,450		4,000

Employee_Benefits_Tables

Employee Benefits (Tables)	12 Months Ended
	Dec. 31, 2013
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	'
Disclosure of Share-based Compensation Arrangements by Share-based Payment Award	'
	A summary of the Company’s stock option activity for the year ended December 31, 2013 is presented below (dollars in thousands, except per share data):
		Shares		Weighted Average Exercise Price	Weighted Average Remaining Contractual Term	Aggregate Intrinsic Value
	Outstanding at December 31, 2012	436,939		11.32
	Exercised	—		—
	Forfeited or expired	24,602		11
	Outstanding at December 31, 2013	412,337		11.34	3.14	2,392
	Exercisable at December 31, 2013	409,513		11.35	3.12	2,371
	Share options expected to vest	2,824		9.71	6.31	21
Schedule of Nonvested Restricted Stock Units Activity	'
	A summary of the activity of the Company’s non-vested stock awards for the year ended December 31, 2013 is presented below:
		Number of Shares	Weighted Average Grant-Date Fair Value
	31-Dec-12	153,723	7.73
	Granted	250,675	10.29
	Vested	-100,002	8.55
	Forfeited	-1,000	7.95
	31-Dec-13	303,396	9.58

Parent_Company_Financial_Data_

Parent Company Financial Data (Tables)	12 Months Ended
	Dec. 31, 2013
Condensed Financial Information of Parent Company Only Disclosure [Abstract]	'
Condensed Balance Sheets Of Parent Company Only	'
	The following are condensed financial statements of the Parent Company as of and for the years ended December 31, 2013, 2012 and 2011 (dollars in thousands):
	CONDENSED BALANCE SHEETS
	December 31, 2013 and 2012
		December 31, 2013			December 31, 2012
	Assets
	Cash and due from banks	$	1,392		$	11,103
	Investment in bank subsidiary	320,941			306,816
	Investment in other subsidiaries	1,113			1,113
	Other assets	622			222
	Total assets	$	324,068		$	319,254
	Liabilities and Shareholders' Equity
	Other liabilities	$	150		$	10,837
	Long-term debt	52,588			26,173
	Total liabilities	52,738			37,010
	Shareholders' Equity:
	Series A, Fixed Rate Cumulative Perpetual Preferred stock	—			30,717
	Series B, Mandatorily Convertible Non-Voting Preferred stock	—			17,161
	Common stock, no par value	168,616			157,541
	Common stock, non-voting, no par value	57,849			40,688
	Retained earnings	41,559			30,708
	Stock in directors rabbi trust	(3,143		)	(3,090		)
	Directors deferred fees obligation	3,143			3,090
	Accumulated other comprehensive income	3,306			5,429
	Total shareholders' equity	271,330			282,244
	Total liabilities and shareholders' equity	$	324,068		$	319,254
Condensed Income Statements Of Parent Company Only	'
	CONDENSED STATEMENTS OF INCOME
	Years Ended December 31, 2013, 2012 and 2011
		2013			2012			2011
	Dividends from bank subsidiary	$	13,760		$	3,675		$	2,100
	Equity in undistributed earnings of bank subsidiary	5,434			8,094			5,427
	Other income	625			626			637
	Interest expense	1,920			939			968
	Other expense	652			1,003			266
	Total net income	$	17,247		$	10,453		$	6,930
Condensed Statements Of Cash Flows Of Parent Company Only	'
	CONDENSED STATEMENTS OF CASH FLOWS
	Years Ended December 31, 2013, 2012 and 2011
		2013			2012			2011
	Operating activities
	Net income	$	17,247		$	10,453		$	6,930
	Adjustments to reconcile net income to net cash provided by operating activities:
	Equity in undistributed earnings of bank subsidiary	(5,434		)	(8,094		)	(5,427		)
	Amortization	48			11			11
	(Increase) decrease in other assets	(472		)	2			7
	Increase (decrease) in other liabilities	(10,687		)	10,267			(362		)
	Net cash provided by operating activities	702			12,639			1,159
	Investing activities
	Net cash used in investment in subsidiaries	—			(61,397		)	—
	Financing activities
	Proceeds (repayments) on short-term borrowings	—			(6,280		)	3,025
	Proceeds on long-term debt	26,440			2,460			—
	Proceeds from issuance of preferred stock	(31,260		)	68,308			—
	Redemption of common stock warrant	—			(940		)	—
	Proceeds from exercise of stock options	—			138			52
	Tax benefit from exercise of stock options, net	—			17			—
	Common stock issued pursuant to dividend reinvestment plan	260			225			205
	Cash dividends paid, net of accretion	(5,853		)	(4,879		)	(3,737		)
	Net cash provided by (used in) financing activities	(10,413		)	59,049			(455		)
	Net increase (decrease) in cash and cash equivalents	(9,711		)	10,291			704
	Cash and cash equivalents, beginning of period	11,103			812			108
	Cash and cash equivalents, end of period	$	1,392		$	11,103		$	812

Basis_Presentation_Additional_

Basis Presentation - Additional Information (Details) (USD $)	12 Months Ended		12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2013
	Segments		Furniture and Fixtures	Furniture and Fixtures	Building
			Minimum	Maximum
Accounting Policies [Abstract]	'	'	'	'	'
Cash and Securities Segregated under Federal and Other Regulations	$8.40	$24.80	'	'	'
Property, Plant and Equipment [Line Items]	'	'	'	'	'
Property, Plant and Equipment, Useful Life	'	'	'3 years	'10 years	'40 years
Number of Operating Segments	2	'	'	'	'

Acquisitions_Schedule_of_Recog

Acquisitions - Schedule of Recognized Identified Assets Acquired and Liabilities Assumed Randolph Bank and Trust (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Oct. 02, 2013	Oct. 02, 2013	Oct. 02, 2013		Oct. 02, 2013
In Thousands, unless otherwise specified				Randolph Bank and Trust	As Recorded By Randolph	Measurement Period Adjustments Randolph		As Recorded By BNC For Randolph Acquisition
					Randolph Bank and Trust	Randolph Bank and Trust		Randolph Bank and Trust
Business Acquisition [Line Items]	'	'	'	'	'	'		'
Cash and due from banks	'	'	'	'	$14,207	$0		$14,207
Investment securities available-for-sale	'	'	'	'	5,082	130	[1]	5,212
Federal Home Loan Bank stock, at cost	'	'	'	'	630	0		630
Loans	'	'	'	'	161,220	-6,973	[2]	154,247
Premises and equipment	'	'	'	'	4,537	811	[3]	5,348
Accrued interest receivable	'	'	'	'	800	0		800
Other real estate owned	'	'	'	'	4,844	-626	[4]	4,218
Core deposit intangible	'	'	'	'	0	2,676	[5]	2,676
Other assets	'	'	'	'	92,289	1,744	[6]	94,033
Total assets acquired	'	'	'	284,000	283,609	-2,238		281,371
Deposits	'	'	'	'	-260,484	-523	[7]	-261,007
Long-term borrowings	'	'	'	'	-6,100	-209	[8]	-6,309
Other liabilities	'	'	'	'	-1,291	0		-1,291
Total liabilities assumed	'	'	'	'	-267,875	-732		-268,607
Net assets acquired	'	'	'	'	'	'		12,764
Total consideration paid	'	'	'	14,037	'	'		14,037
Goodwill	28,384	27,111	26,129	'	'	'		1,273
Common stock issued	'	'	'	9,642	'	'		'
Redemption of preferred stock	'	'	'	2,300	'	'		'
Cash payments to common stockholders	'	'	'	$2,095	'	'		'
[1]	Adjustment for the fair value of the investment securities portfolio.
[2]	Adjustment for the fair value of the loan portfolio.
[3]	Adjustment for the fair value of the premises and equipment.
[4]	Adjustment for the fair value of the other real estate owned.
[5]	Adjustment for the fair value of the core deposit intangible.
[6]	Adjustment for the deferred tax asset recognized from acquisition.
[7]	Adjustment for the fair value of the time deposits.
[8]	Adjustment for the fair value of the borrowings.

Acquisitions_Business_Acquisit

Acquisitions - Business Acquisition, Pro Forma Information Randolph Bank and Trust (Details) (Randolph Bank and Trust, USD $)	3 Months Ended	12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2013	Dec. 31, 2012
Randolph Bank and Trust	'	'	'
Business Acquisition [Line Items]	'	'	'
Pro Forma Net interest income since acquisition date	$29,872	'	'
Pro Forma Net interest income	'	116,467	91,750
Pro Forma Non-interest income since acquisition date	5,178	'	'
Pro Forma Non-interest income	'	25,192	38,064
Pro Forma Net income since acquisition date	3,271	'	'
Pro Forma Net income	'	18,078	10,967
Pro Forma Net income available to common shareholders since acquisition date	3,271	'	'
Pro Forma Net income available to common shareholders	'	$17,018	$8,361
Pro Forma Earnings Per Share, Basic (USD per share)	'	$0.63	$0.22
Pro Forma Earnings Per Share, Diluted (USD per share)	'	$0.63	$0.22

Acquisitions_Schedule_of_Recog1

Acquisitions - Schedule of Recognized Identified Assets Acquired and Liabilities Assumed First Trust Bank (Details) (First Trust, USD $)	0 Months Ended
In Thousands, unless otherwise specified	Nov. 30, 2012
Business Acquisition [Line Items]	'
Total consideration paid	$36,565
Cash payments to common stockholders	10,388
Common stock issued	26,177
As Recorded By First Trust	'
Business Acquisition [Line Items]	'
Cash and due from banks	46,079
Investment securities available-for-sale	124,616
Federal Home Loan Bank stock, at cost	753
Loans	179,702
Premises and equipment	6,938
Accrued interest receivable	1,565
Other real estate owned	8,686
Core deposit intangible	0
Other assets	12,337
Total assets acquired	380,676
Deposits	-323,139
Short-term borrowings	-7,899
Other liabilities	-2,849
Total liabilities assumed	-333,887
Measurement Period Adjustments First Trust Acquisition	'
Business Acquisition [Line Items]	'
Cash and due from banks	0
Investment securities available-for-sale	0
Federal Home Loan Bank stock, at cost	0
Loans	-9,820	[1]
Premises and equipment	866	[2]
Accrued interest receivable	0
Other real estate owned	-535	[3]
Core deposit intangible	1,826	[4]
Other assets	3,295	[5]
Total assets acquired	-4,368
Deposits	-884	[6]
Short-term borrowings	0
Other liabilities	0
Total liabilities assumed	-884
As Recorded By BNC For First Trust Acquisition	'
Business Acquisition [Line Items]	'
Cash and due from banks	46,079
Investment securities available-for-sale	124,616
Federal Home Loan Bank stock, at cost	753
Loans	169,882
Premises and equipment	7,804
Accrued interest receivable	1,565
Other real estate owned	8,151
Core deposit intangible	1,826
Other assets	15,632
Total assets acquired	376,308
Deposits	-324,023
Short-term borrowings	-7,899
Other liabilities	-2,849
Total liabilities assumed	-334,771
Net assets acquired	41,537
Bargain purchase gain	$4,972
[1]	Adjustment for the fair value of the loan portfolio.
[2]	Adjustment for fair value of the premises and equipment.
[3]	Adjustment for the fair value of the other real estate owned.
[4]	Adjustment for the fair value of the core deposit intangible.
[5]	Adjustment for the deferred tax asset recognized from acquisition.
[6]	Adjustment for the fair value of the time deposits.

Acquisitions_Schedule_of_Recog2

Acquisitions - Schedule of Recognized Identified Assets Acquired and Liabilities Assumed KeySource Financial Inc (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Sep. 14, 2012	Sep. 14, 2012	Sep. 14, 2012		Sep. 14, 2012
In Thousands, unless otherwise specified				KeySource	As Recorded By KeySource	KeySource Fair Value Adjustments		As Recorded By BNC For KeySource Acquisition
					KeySource	KeySource		KeySource
Business Acquisition [Line Items]	'	'	'	'	'	'		'
Cash and due from banks	'	'	'	'	$19,847	$0		$19,847
Investment securities available-for-sale	'	'	'	'	3,445	0		3,445
Federal Home Loan Bank stock, at cost	'	'	'	'	430	0		430
Loans	'	'	'	'	148,295	-8,690	[1]	139,605
Premises and equipment	'	'	'	'	650	0		650
Accrued interest receivable	'	'	'	'	547	0		547
Other real estate owned	'	'	'	'	1,289	-150	[2]	1,139
Core deposit intangible	'	'	'	'	0	621	[3]	621
Other assets	'	'	'	'	4,445	3,516	[4]	7,961
Total assets acquired	'	'	'	'	178,948	-4,703		174,245
Deposits	'	'	'	'	-151,553	-854	[5]	-152,407
Short-term borrowings	'	'	'	'	-780	0		-780
Long-term borrowings	'	'	'	'	-5,999	-48	[6]	-6,047
Other liabilities	'	'	'	'	-1,754	102	[7]	-1,652
Total liabilities assumed	'	'	'	'	-160,086	-800		-160,886
Net assets acquired	'	'	'	'	'	'		13,359
Total consideration paid	'	'	'	13,942	'	'		'
Goodwill	28,384	27,111	26,129	583	'	'		'
Common stock issued	'	'	'	13,686	'	'		'
Fair value of KeySource stock options assumed	'	'	'	$256	'	'		'
[1]	Adjustment for the fair value of the loan portfolio.
[2]	Adjustment for the fair value of the other real estate owned.
[3]	Adjustment for the fair value of the core deposit intangible.
[4]	Adjustment for deferred tax asset recognized from acquisition.
[5]	Adjustment for the fair value of the time deposits.
[6]	Adjustment for the fair value of the subordinated debt assumed.
[7]	Adjustment for the reversal of an accrued liability.

Acquisitions_Schedule_of_Recog3

Acquisitions - Schedule of Recognized Identified Assets Acquired and Liabilities Assumed Carolina Federal Savings Bank (Details) (Carolina Federal Savings Bank, USD $)	Jun. 08, 2012
In Thousands, unless otherwise specified
As Recorded By Carolina Federal	'
Business Acquisition [Line Items]	'
Cash and due from banks	$8,394
Federal Home Loan Bank stock, at cost	112
Loans	32,328
Accrued interest receivable	124
Core deposit intangible	0
Other assets	35
Total assets acquired	40,993
Deposits	-52,992
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities Noncurrent	0
Other liabilities	-42
Total liabilities assumed	-53,034
BusinessAcquisitionPurchasePriceAllocationNetLiabilitiesAssumed	-12,041
Carolina Federal Fair Value Adjustments	'
Business Acquisition [Line Items]	'
Cash and due from banks	0
Federal Home Loan Bank stock, at cost	0
Loans	-2,862	[1]
Accrued interest receivable	0
Core deposit intangible	93	[2]
Other assets	1,291	[3]
Total assets acquired	-1,478
Deposits	-148	[4]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities Noncurrent	-2,981	[5]
Total liabilities assumed	-3,129
BusinessAcquisitionPurchasePriceAllocationAggregateFairValueAdjustment	-4,607
As Recorded By BNC Carolina Federal Acquisition	'
Business Acquisition [Line Items]	'
Cash and due from banks	8,394
Federal Home Loan Bank stock, at cost	112
Loans	29,466
Accrued interest receivable	124
Core deposit intangible	93
Other assets	1,326
Total assets acquired	39,515
Deposits	-53,140
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities Noncurrent	-2,981
Other liabilities	-42
Total liabilities assumed	-56,163
CashProceedsFromFdicInFDICAssitstedAcquisition	21,400
Net assets acquired	4,752
Income Tax Effect Of Bargain Purchase Gain	2,982
Bargain purchase gain	$7,734
[1]	Adjustment for the fair value of the loan portfolio.
[2]	Adjustment for the fair value of the core deposit intangible.
[3]	Adjustment for amount due to BNC from the FDIC.
[4]	Adjustment for the fair value of the time deposits.
[5]	Adjustment for the deferred tax liability from the acquisition gain.

Acquisitions_Additional_Inform

Acquisitions - Additional Information (Details) (USD $)	0 Months Ended	12 Months Ended			12 Months Ended
	Oct. 02, 2013	Dec. 31, 2013	Jun. 08, 2012	Sep. 21, 2012	Dec. 31, 2012	Dec. 31, 2012	Dec. 31, 2013
	Randolph Bank and Trust	Randolph Bank and Trust	Carolina Federal Savings Bank	BHR Branches Acquired	Common stock	Common stock	Common stock
					First Trust Bank	KeySource	Randolph Bank and Trust
Business Acquisition [Line Items]	'	'	'	'	'	'	'
Stock Issued During Period, Shares, Acquisitions	'	'	'	'	3,276,101	1,810,267	726,634
Total assets acquired	$284,000,000	'	'	$24,100,000	'	'	'
Business Combination, Acquisition Related Costs	'	4,500,000	'	'	'	'	'
Business Acquisition Purchase Price Allocation Total Liabilities Assumed	'	'	'	24,500,000	'	'	'
Business Acquisition, Purchase Price Allocation, Goodwill	'	'	'	400,000	'	'	'
Asset Discount Cash Paid By FDIC	'	'	10,700,000	'	'	'	'
Business Acquisition, Equity Interest Issued or Issuable, Ratio of Shares Issued Per Share of Acquired Entity	0.87	'	'	'	'	'	'
Payments to Acquire Businesses, Per Share of Acquired Entity	$10	'	'	'	'	'	'
Shareholders of Acquired Entity Electing Stock Conversion Option	80.00%	'	'	'	'	'	'
Shareholders of Acquired Entity Electing Cash Payment Option	20.00%	'	'	'	'	'	'

Shareholders_Equity_Shareholde

Shareholder's Equity Shareholders' Equity (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Apr. 26, 2013	Dec. 31, 2012
TARP Auction And Warrant Redemption [Abstract]	'	'	'
Series A Preferred Stock Issued	31,260	'	'
Warrants repurchased from treasury	543,337	'	'
Warrant or right, exercise price	8.63	'	'
Proceeds from (Repurchase of) Equity	$900,000	'	'
Term loan	$28,875,000	$30,000,000	$0
Preferred stock Series B	'	'	'
Class of Stock [Line Items]	'	'	'
Preferred Shares Converted During the Period, Number	1,804,566	'	'
Non-voting common stock	'	'	'
Class of Stock [Line Items]	'	'	'
Stock issued during period, conversion of series b preferred stock	1,804,566	'	'
Series A Preferred Stock	'	'	'
Class of Stock [Line Items]	'	'	'
Stock Redeemed or Called During Period, Shares	31,260	'	'

Earnings_Per_Share_Schedule_of

Earnings Per Share - Schedule of Earnings Per Share Basic and Diluted (Details) (USD $)	12 Months Ended
In Thousands, except Share data, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Earnings Per Share [Abstract]	'	'	'
Net Income Available to Common Shareholders	$16,187	$8,049	$4,526
Add: Cash Dividends on Convertible Preferred Stock	0	361	361
Net Income Available To Participating Common Shareholders	$16,187	$8,410	$4,887
Weighted Average Common Shares - Basic	26,495,211	15,790,448	9,073,024
Add: Effect of Convertible Preferred Stock	187,873	1,804,566	1,804,566
Weighted Average Participating Common Shares - Basic	26,683,084	17,595,014	10,877,590
Effects of Dilutive Stock Rights	31,090	4,204	16,541
Weighted Average Participating Common Shares - Diluted	26,714,174	17,599,218	10,894,131
Basic Earnings Per Common Share	$0.61	$0.48	$0.45
Diluted Earnings Per Common Share	$0.61	$0.48	$0.45
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	106,283	428,536	677,590

Investment_Securities_Marketab

Investment Securities - Marketable Securities (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Schedule of Available-for-sale Securities [Line Items]	'	'
Available-for-sale Securities, Amortized Cost Basis	$273,507	$327,101
Available For Sale Debt Securities, Gross Unrealized Gain, Accumulated In Investments	4,442	15,624
Available For Sale Debt Securities, Gross Unrealized Loss, Accumulated In Investments	7,532	1,186
Available-for-sale Securities, Fair Value	270,417	341,539
Schedule of Held-to-maturity Securities [Line Items]	'	'
Held-to-maturity Securities, Amortized Cost	247,378	114,805
Held To Maturity Securities, Accumulated Unrecognized Holding Gain	379	4,576
Held To Maturity Securities, Accumulated Unrecognized Holding Loss	11,250	1,146
Held-to-maturity Securities, Debt Maturities, Fair Value, Total	236,507	118,235
State And Municipal Securities	'	'
Schedule of Held-to-maturity Securities [Line Items]	'	'
Held-to-maturity Securities, Amortized Cost	221,378	108,805
Held To Maturity Securities, Accumulated Unrecognized Holding Gain	379	4,576
Held To Maturity Securities, Accumulated Unrecognized Holding Loss	10,169	146
Held-to-maturity Securities, Debt Maturities, Fair Value, Total	211,588	113,235
Corporate Debt Securities	'	'
Schedule of Held-to-maturity Securities [Line Items]	'	'
Held-to-maturity Securities, Amortized Cost	16,000	6,000
Held To Maturity Securities, Accumulated Unrecognized Holding Gain	0	0
Held To Maturity Securities, Accumulated Unrecognized Holding Loss	1,081	1,000
Held-to-maturity Securities, Debt Maturities, Fair Value, Total	14,919	5,000
Other Held-to-Maturity Debt Securities	'	'
Schedule of Held-to-maturity Securities [Line Items]	'	'
Held-to-maturity Securities, Amortized Cost	10,000	'
Held To Maturity Securities, Accumulated Unrecognized Holding Gain	0	'
Held To Maturity Securities, Accumulated Unrecognized Holding Loss	0	'
Held-to-maturity Securities, Debt Maturities, Fair Value, Total	10,000	'
US Government Agencies	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Available-for-sale Securities, Amortized Cost Basis	15,720	15,735
Available For Sale Debt Securities, Gross Unrealized Gain, Accumulated In Investments	4	660
Available For Sale Debt Securities, Gross Unrealized Loss, Accumulated In Investments	663	0
Available-for-sale Securities, Fair Value	15,061	16,395
State and Municipal Securities	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Available-for-sale Securities, Amortized Cost Basis	194,224	213,679
Available For Sale Debt Securities, Gross Unrealized Gain, Accumulated In Investments	2,704	11,359
Available For Sale Debt Securities, Gross Unrealized Loss, Accumulated In Investments	5,665	1,152
Available-for-sale Securities, Fair Value	191,263	223,886
Residential Government Sponsored Mortgage Backed Securities	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Available-for-sale Securities, Amortized Cost Basis	41,231	83,764
Available For Sale Debt Securities, Gross Unrealized Gain, Accumulated In Investments	1,442	3,155
Available For Sale Debt Securities, Gross Unrealized Loss, Accumulated In Investments	659	29
Available-for-sale Securities, Fair Value	42,014	86,890
Other Mortgage-backed Securities, Issued by US Government Sponsored Enterprises	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Available-for-sale Securities, Amortized Cost Basis	7,615	13,923
Available For Sale Debt Securities, Gross Unrealized Gain, Accumulated In Investments	276	450
Available For Sale Debt Securities, Gross Unrealized Loss, Accumulated In Investments	3	5
Available-for-sale Securities, Fair Value	7,888	14,368
Corporate Debt Securities	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Available-for-sale Securities, Amortized Cost Basis	9,011	'
Available For Sale Debt Securities, Gross Unrealized Gain, Accumulated In Investments	16	'
Available For Sale Debt Securities, Gross Unrealized Loss, Accumulated In Investments	138	'
Available-for-sale Securities, Fair Value	8,889	'
Schedule of Held-to-maturity Securities [Line Items]	'	'
Held To Maturity Securities, Accumulated Unrecognized Holding Loss	1,081	1,000
Equity Securities	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Available-for-sale Securities, Amortized Cost Basis	979	'
Available For Sale Debt Securities, Gross Unrealized Gain, Accumulated In Investments	0	'
Available For Sale Debt Securities, Gross Unrealized Loss, Accumulated In Investments	57	'
Available-for-sale Securities, Fair Value	922	'
Other Debt Securities	'	'
Schedule of Available-for-sale Securities [Line Items]	'	'
Available-for-sale Securities, Amortized Cost Basis	4,727	'
Available For Sale Debt Securities, Gross Unrealized Gain, Accumulated In Investments	0	'
Available For Sale Debt Securities, Gross Unrealized Loss, Accumulated In Investments	347	'
Available-for-sale Securities, Fair Value	$4,380	'

Investment_Securities_Investme

Investment Securities - Investments Classified by Contractual Maturity Date (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Investments, Debt and Equity Securities [Abstract]	'	'
Available-for-sale Securities, Debt Maturities, Next Twelve Months, Amortized Cost Basis	$2,300	'
Available-for-sale Securities, Debt Maturities, Year Two Through Five, Amortized Cost Basis	1,683	'
Available-for-sale Securities, Debt Maturities, Year Six Through Ten, Amortized Cost Basis	16,535	'
Available-for-sale Securities, Debt Maturities, after Ten Years, Amortized Cost Basis	252,010	'
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Total	272,528	'
Available-for-sale Equity Securities, Amortized Cost Basis	979	'
Available-for-sale Securities, Amortized Cost Basis	273,507	327,101
Held-to-maturity Securities, Debt Maturities, within One Year, Net Carrying Amount	542	'
Held-to-maturity Securities, Debt Maturities, after One Through Five Years, Net Carrying Amount	13,847	'
Held-to-maturity Securities, Debt Maturities, after Five Through Ten Years, Net Carrying Amount	23,018	'
Held-to-maturity Securities, Debt Maturities, after Ten Years, Net Carrying Amount	209,971	'
Held-to-maturity Securities, Debt Maturities, Net Carrying Amount, Total	247,378	114,805
Available-for-sale Securities, Debt Maturities, Next Twelve Months, Fair Value	2,308	'
Available-for-sale Securities, Debt Maturities, Year Two Through Five, Fair Value	1,712	'
Available-for-sale Securities, Debt Maturities, Year Six Through Ten, Fair Value	16,511	'
Available-for-sale Securities, Debt Maturities, after Ten Years, Fair Value	248,964	'
Available-for-sale Securities, Debt Securities, Fair Value	269,495	'
Available-for-sale Securities, Equity Securities, Fair Value	922	'
Available-for-sale Securities, Fair Value	270,417	341,539
Held-to-maturity Securities, Debt Maturities, Next Twelve Months, Fair Value	549	'
Held-to-maturity Securities, Debt Maturities, Year Two Through Five, Fair Value	12,905	'
Held-to-maturity Securities, Debt Maturities, Year Six Through Ten, Fair Value	22,864	'
Held-to-maturity Securities, Debt Maturities, after Ten Years, Fair Value	200,189	'
Held-to-maturity Securities, Debt Maturities, Fair Value, Total	$236,507	$118,235

Investment_Securities_Schedule

Investment Securities - Schedule of Realized Gain (Loss) (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013		Dec. 31, 2012	Dec. 31, 2011
Investments, Debt and Equity Securities [Abstract]	'		'	'
Proceeds from Sale of Available-for-sale Securities, Debt	$18,414		$117,381	$50,717
Available-for-sale Securities, Gross Realized Gains	201	[1]	3,117	2,159
Gross Realized Losses on Sales	-243		-91	-957
Total Realized Gains (Losses), Net	-42		3,026	1,202
Available-for-sale Securities, Gross Realized Gains on Redemption of Preferred Stock	$175		'	'
[1]	Includes $175 gain derived from the redemption of preferred stock from another financial institution that was purchased at auction from the Treasury.

Summary_of_Investment_Securiti

- Summary of Investment Securities, Continuous Unrealized Loss Position (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified	Security	Security
Schedule of Investment Securities [Line Items]	'	'
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	$114,714	$98,016
Available For Sale Securities, Continuous Unrealized Loss Position, Less Than 12 Months, Aggregate Losses Accumulated In Investments	5,296	1,186
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	32,558	0
Available For Sale Securities, Continuous Unrealized Loss Position 12 Months Or Longer, Aggregate Losses Accumulated In Investments	2,236	0
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	147,272	98,016
Available For Sale Securities, Continuous Unrealized Loss Position, Aggregate Losses Accumulated In Investments	7,532	1,186
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	167,504	10,301
Held to maturity Securities, Continuous Unrealized Loss Position Less Than 12 Months, Accumulated Loss	8,386	146
Held-to-maturity Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	31,218	5,000
Held to maturity Securities, Continuous Unrealized Loss Position 12 Months Or Longer, Accumulated Loss	2,864	1,000
Held-to-maturity Securities, Continuous Unrealized Loss Position, Fair Value	198,722	15,301
Held To Maturity Securities, Accumulated Unrecognized Holding Loss	11,250	1,146
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Less than One Year	71	112
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Greater than or Equal to One Year	25	0
Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Less than One Year	151	9
Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Greater than or Equal to One Year	26	2
US Government Agencies	'	'
Schedule of Investment Securities [Line Items]	'	'
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	14,583	'
Available For Sale Securities, Continuous Unrealized Loss Position, Less Than 12 Months, Aggregate Losses Accumulated In Investments	663	'
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	0	'
Available For Sale Securities, Continuous Unrealized Loss Position 12 Months Or Longer, Aggregate Losses Accumulated In Investments	0	'
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	14,583	'
Available For Sale Securities, Continuous Unrealized Loss Position, Aggregate Losses Accumulated In Investments	663	'
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Less than One Year	5	'
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Greater than or Equal to One Year	0	'
State And Municipal Securities	'	'
Schedule of Investment Securities [Line Items]	'	'
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	72,821	75,551
Available For Sale Securities, Continuous Unrealized Loss Position, Less Than 12 Months, Aggregate Losses Accumulated In Investments	3,647	1,152
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	27,976	0
Available For Sale Securities, Continuous Unrealized Loss Position 12 Months Or Longer, Aggregate Losses Accumulated In Investments	2,018	0
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	100,797	75,551
Available For Sale Securities, Continuous Unrealized Loss Position, Aggregate Losses Accumulated In Investments	5,665	1,152
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	162,565	10,301
Held to maturity Securities, Continuous Unrealized Loss Position Less Than 12 Months, Accumulated Loss	8,325	146
Held-to-maturity Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	28,238	0
Held to maturity Securities, Continuous Unrealized Loss Position 12 Months Or Longer, Accumulated Loss	1,844	0
Held-to-maturity Securities, Continuous Unrealized Loss Position, Fair Value	190,803	10,301
Held To Maturity Securities, Accumulated Unrecognized Holding Loss	10,169	146
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Less than One Year	47	56
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Greater than or Equal to One Year	21	0
Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Less than One Year	150	9
Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Greater than or Equal to One Year	25	0
Corporate Debt Securities	'	'
Schedule of Investment Securities [Line Items]	'	'
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	7,862	'
Available For Sale Securities, Continuous Unrealized Loss Position, Less Than 12 Months, Aggregate Losses Accumulated In Investments	138	'
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	0	'
Available For Sale Securities, Continuous Unrealized Loss Position 12 Months Or Longer, Aggregate Losses Accumulated In Investments	0	'
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	7,862	'
Available For Sale Securities, Continuous Unrealized Loss Position, Aggregate Losses Accumulated In Investments	138	'
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	4,939	0
Held to maturity Securities, Continuous Unrealized Loss Position Less Than 12 Months, Accumulated Loss	61	0
Held-to-maturity Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	2,980	5,000
Held to maturity Securities, Continuous Unrealized Loss Position 12 Months Or Longer, Accumulated Loss	1,020	1,000
Held-to-maturity Securities, Continuous Unrealized Loss Position, Fair Value	7,919	5,000
Held To Maturity Securities, Accumulated Unrecognized Holding Loss	1,081	1,000
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Less than One Year	2	'
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Greater than or Equal to One Year	0	'
Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Less than One Year	1	0
Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Greater than or Equal to One Year	1	2
Other Debt Securities	'	'
Schedule of Investment Securities [Line Items]	'	'
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	4,380	'
Available For Sale Securities, Continuous Unrealized Loss Position, Less Than 12 Months, Aggregate Losses Accumulated In Investments	347	'
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	0	'
Available For Sale Securities, Continuous Unrealized Loss Position 12 Months Or Longer, Aggregate Losses Accumulated In Investments	0	'
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	4,380	'
Available For Sale Securities, Continuous Unrealized Loss Position, Aggregate Losses Accumulated In Investments	347	'
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Less than One Year	1	'
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Greater than or Equal to One Year	0	'
Equity Securities	'	'
Schedule of Investment Securities [Line Items]	'	'
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	922	'
Available For Sale Securities, Continuous Unrealized Loss Position, Less Than 12 Months, Aggregate Losses Accumulated In Investments	57	'
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	0	'
Available For Sale Securities, Continuous Unrealized Loss Position 12 Months Or Longer, Aggregate Losses Accumulated In Investments	0	'
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	922	'
Available For Sale Securities, Continuous Unrealized Loss Position, Aggregate Losses Accumulated In Investments	57	'
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Less than One Year	1	'
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Greater than or Equal to One Year	0	'
Collateralized Mortgage Backed Securities	'	'
Schedule of Investment Securities [Line Items]	'	'
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	14,146	22,465
Available For Sale Securities, Continuous Unrealized Loss Position, Less Than 12 Months, Aggregate Losses Accumulated In Investments	444	34
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	4,582	0
Available For Sale Securities, Continuous Unrealized Loss Position 12 Months Or Longer, Aggregate Losses Accumulated In Investments	218	0
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	18,728	22,465
Available For Sale Securities, Continuous Unrealized Loss Position, Aggregate Losses Accumulated In Investments	$662	$34
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Less than One Year	15	23
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Greater than or Equal to One Year	4	0

Investment_Securities_Addition

Investment Securities - Additional Information (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Schedule of Investment Securities [Line Items]	'	'
Fair Value Investment Securities Transferred From AFS To HTM	$86.50	'
Unrealized Holding Gains - Investment Securities Transferred from Available for Sale to Held to Maturity, Net	1.2	'
Security Owned and Pledged as Collateral, Fair Value	$184	$175.10
State And Municipal Securities	'	'
Schedule of Investment Securities [Line Items]	'	'
Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Greater than or Equal to One Year	46	'
Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions	243	'

Loans_and_Allowance_for_Loan_L2

Loans and Allowance for Loan Losses - Schedule of Financing Receivable Covered and NonCovered (Details) (USD $)	Dec. 31, 2013		Dec. 31, 2012
Financing Receivable, Recorded Investment [Line Items]	'		'
Financing Receivable Covered by Loss Sharing Agreement	$187,661,000	[1]	$248,930,000	[1]
Financing Receivable Not Covered by Loss Sharing Agreement	2,088,856,000	[2]	1,786,328,000	[2]
Loans and Leases Receivable, Net	2,276,517,000		2,035,258,000
Unpaid Principal Balance Of Covered Acquired Loans	195,400,000		272,700,000
Commercial Real Estate	'		'
Financing Receivable, Recorded Investment [Line Items]	'		'
Financing Receivable Covered by Loss Sharing Agreement	96,452,000	[1]	114,757,000	[1]
Financing Receivable Not Covered by Loss Sharing Agreement	1,236,204,000	[2]	1,034,686,000	[2]
Loans and Leases Receivable, Net	1,332,656,000		1,149,443,000
Commercial Construction	'		'
Financing Receivable, Recorded Investment [Line Items]	'		'
Financing Receivable Covered by Loss Sharing Agreement	18,331,000	[1]	33,447,000	[1]
Financing Receivable Not Covered by Loss Sharing Agreement	226,229,000	[2]	183,747,000	[2]
Loans and Leases Receivable, Net	244,560,000		217,194,000
Commercial and Industrial	'		'
Financing Receivable, Recorded Investment [Line Items]	'		'
Financing Receivable Covered by Loss Sharing Agreement	5,919,000	[1]	10,898,000	[1]
Financing Receivable Not Covered by Loss Sharing Agreement	163,020,000	[2]	150,870,000	[2]
Loans and Leases Receivable, Net	168,939,000		161,768,000
Leases	'		'
Financing Receivable, Recorded Investment [Line Items]	'		'
Financing Receivable Covered by Loss Sharing Agreement	0	[1]	0	[1]
Financing Receivable Not Covered by Loss Sharing Agreement	16,137,000	[2]	13,209,000	[2]
Loans and Leases Receivable, Net	16,137,000		13,209,000
Total Commercial Loans	'		'
Financing Receivable, Recorded Investment [Line Items]	'		'
Financing Receivable Covered by Loss Sharing Agreement	120,702,000	[1]	159,102,000	[1]
Financing Receivable Not Covered by Loss Sharing Agreement	1,641,590,000	[2]	1,382,512,000	[2]
Loans and Leases Receivable, Net	1,762,292,000		1,541,614,000
Residential Construction	'		'
Financing Receivable, Recorded Investment [Line Items]	'		'
Financing Receivable Covered by Loss Sharing Agreement	16,000	[1]	215,000	[1]
Financing Receivable Not Covered by Loss Sharing Agreement	32,418,000	[2]	34,514,000	[2]
Loans and Leases Receivable, Net	32,434,000		34,729,000
Residential Mortgage	'		'
Financing Receivable, Recorded Investment [Line Items]	'		'
Financing Receivable Covered by Loss Sharing Agreement	65,024,000	[1]	87,015,000	[1]
Financing Receivable Not Covered by Loss Sharing Agreement	402,899,000	[2]	359,260,000	[2]
Loans and Leases Receivable, Net	467,923,000		446,275,000
Consumer and Other	'		'
Financing Receivable, Recorded Investment [Line Items]	'		'
Financing Receivable Covered by Loss Sharing Agreement	1,919,000	[1]	2,598,000	[1]
Financing Receivable Not Covered by Loss Sharing Agreement	11,949,000	[2]	10,042,000	[2]
Loans and Leases Receivable, Net	13,868,000		12,640,000
Financing Receivable	'		'
Financing Receivable, Recorded Investment [Line Items]	'		'
Loans and Leases Receivable, Net	2,276,517,000		2,035,258,000
Acquired (non-covered) | Financing Receivable	'		'
Financing Receivable, Recorded Investment [Line Items]	'		'
Loans and Leases Receivable, Net	$383,980,000		$347,172,000
[1]	The unpaid principal balance for covered loans was $195.4 million and $272.7 million at DecemberB 31, 2013 and 2012, respectively.
[2]	Amount includes $384.0 million and $347.2 million of acquired, non-covered loans as of DecemberB 31, 2013 and 2012, respectively.

Loans_and_Allowance_for_Loan_L3

Loans and Allowance for Loan Losses - Schedule of Changes in Accretable Yield and Carrying Value of Covered Acquired Loans (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Accretable Yield	'	'
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield Movement Schedule [Roll Forward]	'	'
Balance at Beginning of Period	($12,895)	($8,387)
Reductions from Payments and Foreclosures, Net	0	0
Reclasses from Non-Accretable to Accretable Yield	-968	-8,403
Accretion	7,805	3,895
Balance at End of Period	-6,058	-12,895
Carrying Amount	'	'
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield Movement Schedule [Roll Forward]	'	'
Balance at Beginning of Period	248,930	320,033
Reductions from Payments and Foreclosures, Net	-69,074	-74,998
Reclasses from Non-Accretable to Accretable Yield	0	0
Accretion	7,805	3,895
Balance at End of Period	$187,661	$248,930

Loans_and_Allowance_for_Loan_L4

Loans and Allowance for Loan Losses - Information About Acquired Entity Loan Portfolio (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Receivables [Abstract]	'	'
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Acquired During Period, Contractually Required Payments Receivable at Acquisition	$3,781	$52,865
Certain Loans Acquired in Transfer, Nonaccretable Difference	-1,336	-11,716
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Acquired During Period, Consumer, Cash Flows Expected to be Collected at Acquisition	2,445	41,149
Certain Loan Acquired In Transfer Accretable Yield	-261	-1,954
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Acquired During Period, at Acquisition, at Fair Value	$2,184	$39,195

Loans_and_Allowance_for_Loan_L5

Loans and Allowance for Loan Losses - Schedule of Related Party Transaction (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013
Loans and Leases Receivable, Related Parties [Roll Forward]	'
Balance at Beginning of Year	$21,827
Additional Borowings	15,943
Loan Repayments	-16,249
Balance at End of Year	$21,521

Loans_and_Allowance_for_Loan_L6

Loans and Allowance for Loan Losses - Home Equity Loans By Maturity (Details) (USD $)	Dec. 31, 2013
In Thousands, unless otherwise specified
Receivables [Abstract]	'
2014	$1,923
2015	1,592
2016	3,206
2017	3,615
2018	4,597
Thereafter	118,044
Total Home Equity Loans	$132,977

Loans_and_Allowance_for_Loan_L7

Loans and Allowance for Loan Losses - Analysis of Allowance for Loan Losses by Class of Financing Receivables (Details) (USD $)	12 Months Ended
	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Allowance for Loan Losses Rollforward [Line Items]	'		'		'
Loans and leases, Allowance, Beginning Balance	$40,292,000		'		'
Provision for loan losses, net	12,188,000		22,737,000		18,214,000
Loans and leases, Allowance, Ending Balance	32,875,000		40,292,000		'
Loans and Leases Receivable, Net	2,276,517,000		2,035,258,000		'
Net Provision For Loan Losses On Covered Loans	600,000		5,000,000		'
Provision for Loan and Lease Losses Covered by the FDIC	1,700,000	[1]	22,700,000	[1]	'
Commercial Real Estate	'		'		'
Allowance for Loan Losses Rollforward [Line Items]	'		'		'
Loans and leases, Allowance, Beginning Balance	15,718,000		11,789,000		'
Charge-offs	-5,492,000		-9,123,000		'
Recoveries	1,525,000		753,000		'
Provision for loan losses, net	5,084,000	[1]	8,473,000	[2]	'
Change in FDIC Indemnification Asset	-2,083,000	[1]	3,826,000	[2]	'
Loans and leases, Allowance, Ending Balance	14,752,000		15,718,000		'
Impaired loans	3,209,000		578,000		'
Purchase credit impaired loans	2,979,000		6,518,000		'
Total specific reserves	6,188,000		7,096,000		'
General reserves	8,564,000		8,622,000		'
Individually evaluated for impairment	33,950,000		26,076,000		'
Purchase credit impaired loans	100,290,000		121,983,000		'
Loans collectively evaluated for impairment	1,198,416,000		1,001,384,000		'
Loans and Leases Receivable, Net	1,332,656,000		1,149,443,000		'
Commercial Construction	'		'		'
Allowance for Loan Losses Rollforward [Line Items]	'		'		'
Loans and leases, Allowance, Beginning Balance	9,807,000		10,957,000		'
Charge-offs	-9,519,000		-10,985,000		'
Recoveries	2,712,000		1,467,000		'
Provision for loan losses, net	1,879,000	[1]	1,359,000	[2]	'
Change in FDIC Indemnification Asset	1,859,000	[1]	7,009,000	[2]	'
Loans and leases, Allowance, Ending Balance	6,738,000		9,807,000		'
Impaired loans	1,595,000		3,023,000		'
Purchase credit impaired loans	691,000		2,704,000		'
Total specific reserves	2,286,000		5,727,000		'
General reserves	4,452,000		4,080,000		'
Individually evaluated for impairment	12,877,000		19,367,000		'
Purchase credit impaired loans	18,460,000		34,666,000		'
Loans collectively evaluated for impairment	213,223,000		163,161,000		'
Loans and Leases Receivable, Net	244,560,000		217,194,000		'
Commercial and Industrial	'		'		'
Allowance for Loan Losses Rollforward [Line Items]	'		'		'
Loans and leases, Allowance, Beginning Balance	3,578,000		4,338,000		'
Charge-offs	-3,442,000		-4,727,000		'
Recoveries	1,721,000		324,000		'
Provision for loan losses, net	1,017,000	[1]	2,192,000	[2]	'
Change in FDIC Indemnification Asset	263,000	[1]	1,451,000	[2]	'
Loans and leases, Allowance, Ending Balance	3,137,000		3,578,000		'
Impaired loans	43,000		4,000		'
Purchase credit impaired loans	552,000		1,569,000		'
Total specific reserves	595,000		1,573,000		'
General reserves	2,542,000		2,005,000		'
Individually evaluated for impairment	1,525,000		1,682,000		'
Purchase credit impaired loans	6,649,000		12,397,000		'
Loans collectively evaluated for impairment	160,765,000		147,689,000		'
Loans and Leases Receivable, Net	168,939,000		161,768,000		'
Leases	'		'		'
Allowance for Loan Losses Rollforward [Line Items]	'		'		'
Loans and leases, Allowance, Beginning Balance	18,000		18,000		'
Charge-offs	0		0		'
Recoveries	0		0		'
Provision for loan losses, net	38,000	[1]	0	[2]	'
Change in FDIC Indemnification Asset	0	[1]	0	[2]	'
Loans and leases, Allowance, Ending Balance	56,000		18,000		'
Impaired loans	0		0		'
Purchase credit impaired loans	0		0		'
Total specific reserves	0		0		'
General reserves	56,000		18,000		'
Individually evaluated for impairment	0		0		'
Purchase credit impaired loans	0		0		'
Loans collectively evaluated for impairment	16,137,000		13,209,000		'
Loans and Leases Receivable, Net	16,137,000		13,209,000		'
Residential Construction	'		'		'
Allowance for Loan Losses Rollforward [Line Items]	'		'		'
Loans and leases, Allowance, Beginning Balance	593,000		699,000		'
Charge-offs	0		-219,000		'
Recoveries	58,000		126,000		'
Provision for loan losses, net	-412,000	[1]	-13,000	[2]	'
Change in FDIC Indemnification Asset	-26,000	[1]	0	[2]	'
Loans and leases, Allowance, Ending Balance	213,000		593,000		'
Impaired loans	35,000		2,000		'
Purchase credit impaired loans	0		0		'
Total specific reserves	35,000		2,000		'
General reserves	178,000		591,000		'
Individually evaluated for impairment	356,000		361,000		'
Purchase credit impaired loans	16,000		5,741,000		'
Loans collectively evaluated for impairment	32,062,000		28,627,000		'
Loans and Leases Receivable, Net	32,434,000		34,729,000		'
Residential Mortgage	'		'		'
Allowance for Loan Losses Rollforward [Line Items]	'		'		'
Loans and leases, Allowance, Beginning Balance	10,441,000		3,058,000		'
Charge-offs	-9,598,000		-9,451,000		'
Recoveries	1,696,000		862,000		'
Provision for loan losses, net	4,224,000	[1]	10,600,000	[2]	'
Change in FDIC Indemnification Asset	967,000	[1]	5,372,000	[2]	'
Loans and leases, Allowance, Ending Balance	7,730,000		10,441,000		'
Impaired loans	1,361,000		1,612,000		'
Purchase credit impaired loans	1,833,000		4,000,000		'
Total specific reserves	3,194,000		5,612,000		'
General reserves	4,536,000		4,829,000		'
Individually evaluated for impairment	14,037,000		16,850,000		'
Purchase credit impaired loans	50,825,000		68,273,000		'
Loans collectively evaluated for impairment	403,061,000		361,152,000		'
Loans and Leases Receivable, Net	467,923,000		446,275,000		'
Consumer and Other	'		'		'
Allowance for Loan Losses Rollforward [Line Items]	'		'		'
Loans and leases, Allowance, Beginning Balance	137,000		149,000		'
Charge-offs	-377,000		-205,000		'
Recoveries	27,000		14,000		'
Provision for loan losses, net	358,000	[1]	126,000	[2]	'
Change in FDIC Indemnification Asset	104,000	[1]	53,000	[2]	'
Loans and leases, Allowance, Ending Balance	249,000		137,000		'
Impaired loans	10,000		0		'
Purchase credit impaired loans	23,000		18,000		'
Total specific reserves	33,000		18,000		'
General reserves	216,000		119,000		'
Individually evaluated for impairment	165,000		127,000		'
Purchase credit impaired loans	1,917,000		2,590,000		'
Loans collectively evaluated for impairment	11,786,000		9,923,000		'
Loans and Leases Receivable, Net	13,868,000		12,640,000		'
Financing Receivable	'		'		'
Allowance for Loan Losses Rollforward [Line Items]	'		'		'
Loans and leases, Allowance, Beginning Balance	40,292,000		31,008,000		'
Charge-offs	-28,428,000		-34,710,000		'
Recoveries	7,739,000		3,546,000		'
Provision for loan losses, net	12,188,000	[1]	22,737,000	[2]	'
Change in FDIC Indemnification Asset	1,100,000	[1]	17,700,000	[2]	'
Loans and leases, Allowance, Ending Balance	32,875,000		40,292,000		'
Impaired loans	6,253,000		5,219,000		'
Purchase credit impaired loans	6,078,000		14,809,000		'
Total specific reserves	12,331,000		20,028,000		'
General reserves	20,544,000		20,264,000		'
Individually evaluated for impairment	62,910,000		64,463,000		'
Purchase credit impaired loans	178,157,000		245,650,000		'
Loans collectively evaluated for impairment	2,035,450,000		1,725,145,000		'
Loans and Leases Receivable, Net	$2,276,517,000		$2,035,258,000		'
[1]	The provision for loan losses includes the "net" provision on covered loans after coverage provided by FDIC loss-share agreements, which totaled $0.6 million for the year ended DecemberB 31, 2013. This resulted in an increase in the FDIC indemnification asset of $1.1 million, which is the difference between the net provision on covered loans and the total additions to the allowance for loan losses allocable to the covered loan portfolio of $1.7 million for the year ended DecemberB 31, 2013.
[2]	The provision for loan losses includes the "net" provision on covered loans after coverage provided by FDIC loss-share agreements, which totaled $5.0 million for the year ended DecemberB 31, 2012. This resulted in an increase in the FDIC indemnification asset of $17.7 million, which is the difference between the net provision on covered loans and the total additions to the allowance for loan losses allocable to the covered loan portfolio of $22.7 million for the year ended DecemberB 31, 2012.

Loans_and_Allowance_for_Loan_L8

Loans and Allowance for Loan Losses - Schedule of Impaired Loans (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Financing Receivable	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Impaired Financing Receivable, with Related Allowance, Recorded Investment	$34,877	$32,330
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	34,801	32,568
Impaired Financing Receivable, Allowances for Loan Losses Allocated	6,253	5,219
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	35,011	39,516
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	36,025	39,947
Originated | Commercial Real Estate	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Impaired Financing Receivable, with Related Allowance, Recorded Investment	16,261	7,918
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	16,228	7,891
Impaired Financing Receivable, Allowances for Loan Losses Allocated	3,164	562
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	17,129	17,915
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	17,116	17,867
Originated | Commercial Construction	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Impaired Financing Receivable, with Related Allowance, Recorded Investment	7,239	11,838
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	7,218	11,815
Impaired Financing Receivable, Allowances for Loan Losses Allocated	1,582	3,022
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	5,536	7,581
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	5,902	7,552
Originated | Commercial and Industrial	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Impaired Financing Receivable, with Related Allowance, Recorded Investment	934	99
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	932	99
Impaired Financing Receivable, Allowances for Loan Losses Allocated	42	1
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	3	1,352
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	0	1,351
Originated | Residential Construction	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Impaired Financing Receivable, with Related Allowance, Recorded Investment	357	362
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	355	361
Impaired Financing Receivable, Allowances for Loan Losses Allocated	35	2
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	0	0
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	0	0
Originated | Residential Mortgage	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Impaired Financing Receivable, with Related Allowance, Recorded Investment	8,529	10,772
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	8,513	10,755
Impaired Financing Receivable, Allowances for Loan Losses Allocated	1,333	1,526
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	3,719	4,801
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	3,699	4,788
Originated | Consumer Loan	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Impaired Financing Receivable, with Related Allowance, Recorded Investment	104	0
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	104	0
Impaired Financing Receivable, Allowances for Loan Losses Allocated	10	0
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	37	124
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	37	122
Originated | Financing Receivable	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Impaired Financing Receivable, with Related Allowance, Recorded Investment	33,424	30,989
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	33,350	30,921
Impaired Financing Receivable, Allowances for Loan Losses Allocated	6,166	5,113
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	26,424	31,773
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	26,754	31,680
Acquired (non-covered) | Commercial Real Estate	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Impaired Financing Receivable, with Related Allowance, Recorded Investment	490	500
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	489	800
Impaired Financing Receivable, Allowances for Loan Losses Allocated	45	16
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	557	248
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	565	256
Acquired (non-covered) | Commercial Construction	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Impaired Financing Receivable, with Related Allowance, Recorded Investment	142	'
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	141	'
Impaired Financing Receivable, Allowances for Loan Losses Allocated	14	'
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	0	'
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	0	'
Acquired (non-covered) | Commercial and Industrial	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Impaired Financing Receivable, with Related Allowance, Recorded Investment	185	240
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	185	240
Impaired Financing Receivable, Allowances for Loan Losses Allocated	1	3
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	406	0
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	648	0
Acquired (non-covered) | Residential Mortgage	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Impaired Financing Receivable, with Related Allowance, Recorded Investment	636	601
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	636	607
Impaired Financing Receivable, Allowances for Loan Losses Allocated	27	87
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	1,236	765
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	1,528	895
Acquired (non-covered) | Consumer Loan	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Impaired Financing Receivable, with Related Allowance, Recorded Investment	0	0
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	0	0
Impaired Financing Receivable, Allowances for Loan Losses Allocated	0	0
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	24	5
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	21	5
Acquired (non-covered) | Financing Receivable	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Impaired Financing Receivable, with Related Allowance, Recorded Investment	1,453	1,341
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	1,451	1,647
Impaired Financing Receivable, Allowances for Loan Losses Allocated	87	106
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	2,223	1,018
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	2,762	1,156
Acquired (covered) | Commercial Real Estate	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Impaired Financing Receivable, with Related Allowance, Recorded Investment	0	0
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	0	0
Impaired Financing Receivable, Allowances for Loan Losses Allocated	0	0
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	173	548
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	183	625
Acquired (covered) | Commercial Construction	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Impaired Financing Receivable, with Related Allowance, Recorded Investment	0	0
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	0	0
Impaired Financing Receivable, Allowances for Loan Losses Allocated	0	0
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	400	530
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	414	561
Acquired (covered) | Commercial and Industrial	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Impaired Financing Receivable, with Related Allowance, Recorded Investment	0	0
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	0	0
Impaired Financing Receivable, Allowances for Loan Losses Allocated	0	0
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	3	143
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	35	176
Acquired (covered) | Residential Mortgage	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Impaired Financing Receivable, with Related Allowance, Recorded Investment	0	0
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	0	0
Impaired Financing Receivable, Allowances for Loan Losses Allocated	0	0
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	5,788	5,504
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	5,877	5,749
Acquired (covered) | Financing Receivable	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Impaired Financing Receivable, with Related Allowance, Recorded Investment	0	0
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	0	0
Impaired Financing Receivable, Allowances for Loan Losses Allocated	0	0
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	6,364	6,725
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	$6,509	$7,111

Loans_and_Allowance_for_Loan_L9

Loans and Allowance for Loan Losses - Schedule of Average Recorded Investments and Interest Income Recognized on Impaired Loans (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Commercial Real Estate	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	$20,205	$19,414
Impaired Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method	839	2,376
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	12,724	22,673
Impaired Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method	600	2,271
Commercial Construction	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	6,700	17,074
Impaired Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method	246	1,758
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	8,192	19,708
Impaired Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method	346	3,042
Commercial and Industrial	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	499	1,923
Impaired Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method	28	177
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	592	2,051
Impaired Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method	30	276
Residential Construction	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	367	272
Impaired Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method	12	18
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	0	473
Impaired Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method	0	96
Residential Mortgage	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	11,074	13,955
Impaired Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method	381	952
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	10,614	19,909
Impaired Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method	357	2,205
Consumer and Other	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	23	0
Impaired Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method	0	0
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	40	202
Impaired Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method	0	18
Financing Receivable	'	'
Accounts, Notes, Loans and Financing Receivable [Line Items]	'	'
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	38,868	52,638
Impaired Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method	1,506	5,281
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	32,162	65,016
Impaired Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method	$1,333	$7,908

Recovered_Sheet1

Loans and Allowance for Loan Losses - Aging of Financing Receivables (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Loans and Leases Receivable, Net	$2,276,517	$2,035,258
Financing Receivable	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Financing Receivable, Recorded Investment, 30 to 59 Days Past Due	5,208	14,312
Financing Receivable, Recorded Investment, 60 to 89 Days Past Due	1,761	3,899
Financing Receivable, Recorded Investment, Greater than 90 Days Past Due	0	0
Financing Receivable, Recorded Investment, Nonaccrual Status	40,859	69,423
Financing Receivable, Recorded Investment, Total Past Due	47,828	87,634
Financing Receivable, Recorded Investment, Current	2,228,689	1,947,624
Loans and Leases Receivable, Net	2,276,517	2,035,258
Originated | Commercial Real Estate	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Financing Receivable, Recorded Investment, 30 to 59 Days Past Due	353	731
Financing Receivable, Recorded Investment, 60 to 89 Days Past Due	0	1,080
Financing Receivable, Recorded Investment, Greater than 90 Days Past Due	0	0
Financing Receivable, Recorded Investment, Nonaccrual Status	6,044	3,522
Financing Receivable, Recorded Investment, Total Past Due	6,397	5,333
Financing Receivable, Recorded Investment, Current	1,008,236	818,764
Loans and Leases Receivable, Net	1,014,633	824,097
Originated | Commercial Construction	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Financing Receivable, Recorded Investment, 30 to 59 Days Past Due	14	369
Financing Receivable, Recorded Investment, 60 to 89 Days Past Due	20	0
Financing Receivable, Recorded Investment, Greater than 90 Days Past Due	0	0
Financing Receivable, Recorded Investment, Nonaccrual Status	2,801	7,586
Financing Receivable, Recorded Investment, Total Past Due	2,835	7,955
Financing Receivable, Recorded Investment, Current	199,305	145,924
Loans and Leases Receivable, Net	202,140	153,879
Originated | Commercial and Industrial	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Financing Receivable, Recorded Investment, 30 to 59 Days Past Due	533	243
Financing Receivable, Recorded Investment, 60 to 89 Days Past Due	10	8
Financing Receivable, Recorded Investment, Greater than 90 Days Past Due	0	0
Financing Receivable, Recorded Investment, Nonaccrual Status	245	1,121
Financing Receivable, Recorded Investment, Total Past Due	788	1,372
Financing Receivable, Recorded Investment, Current	138,779	123,040
Loans and Leases Receivable, Net	139,567	124,412
Originated | Leases	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Financing Receivable, Recorded Investment, 30 to 59 Days Past Due	0	0
Financing Receivable, Recorded Investment, 60 to 89 Days Past Due	0	0
Financing Receivable, Recorded Investment, Greater than 90 Days Past Due	0	0
Financing Receivable, Recorded Investment, Nonaccrual Status	0	0
Financing Receivable, Recorded Investment, Total Past Due	0	0
Financing Receivable, Recorded Investment, Current	16,137	13,209
Loans and Leases Receivable, Net	16,137	13,209
Originated | Residential Construction	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Financing Receivable, Recorded Investment, 30 to 59 Days Past Due	0	0
Financing Receivable, Recorded Investment, 60 to 89 Days Past Due	0	0
Financing Receivable, Recorded Investment, Greater than 90 Days Past Due	0	0
Financing Receivable, Recorded Investment, Nonaccrual Status	0	0
Financing Receivable, Recorded Investment, Total Past Due	0	0
Financing Receivable, Recorded Investment, Current	29,636	21,704
Loans and Leases Receivable, Net	29,636	21,704
Originated | Residential Mortgage	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Financing Receivable, Recorded Investment, 30 to 59 Days Past Due	1,417	1,205
Financing Receivable, Recorded Investment, 60 to 89 Days Past Due	248	2,133
Financing Receivable, Recorded Investment, Greater than 90 Days Past Due	0	0
Financing Receivable, Recorded Investment, Nonaccrual Status	5,102	7,356
Financing Receivable, Recorded Investment, Total Past Due	6,767	10,694
Financing Receivable, Recorded Investment, Current	287,893	282,037
Loans and Leases Receivable, Net	294,660	292,731
Originated | Consumer and Other	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Financing Receivable, Recorded Investment, 30 to 59 Days Past Due	0	9
Financing Receivable, Recorded Investment, 60 to 89 Days Past Due	0	127
Financing Receivable, Recorded Investment, Greater than 90 Days Past Due	0	0
Financing Receivable, Recorded Investment, Nonaccrual Status	37	0
Financing Receivable, Recorded Investment, Total Past Due	37	136
Financing Receivable, Recorded Investment, Current	8,066	8,988
Loans and Leases Receivable, Net	8,103	9,124
Originated | Financing Receivable	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Financing Receivable, Recorded Investment, 30 to 59 Days Past Due	2,317	2,557
Financing Receivable, Recorded Investment, 60 to 89 Days Past Due	278	3,348
Financing Receivable, Recorded Investment, Greater than 90 Days Past Due	0	0
Financing Receivable, Recorded Investment, Nonaccrual Status	14,229	19,585
Financing Receivable, Recorded Investment, Total Past Due	16,824	25,490
Financing Receivable, Recorded Investment, Current	1,688,052	1,413,666
Loans and Leases Receivable, Net	1,704,876	1,439,156
Acquired (non-covered) | Commercial Real Estate	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Financing Receivable, Recorded Investment, 30 to 59 Days Past Due	116	1,255
Financing Receivable, Recorded Investment, 60 to 89 Days Past Due	0	0
Financing Receivable, Recorded Investment, Greater than 90 Days Past Due	0	0
Financing Receivable, Recorded Investment, Nonaccrual Status	605	1,179
Financing Receivable, Recorded Investment, Total Past Due	721	2,434
Financing Receivable, Recorded Investment, Current	220,850	208,155
Loans and Leases Receivable, Net	221,571	210,589
Acquired (non-covered) | Commercial Construction	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Financing Receivable, Recorded Investment, 30 to 59 Days Past Due	50	315
Financing Receivable, Recorded Investment, 60 to 89 Days Past Due	0	0
Financing Receivable, Recorded Investment, Greater than 90 Days Past Due	0	0
Financing Receivable, Recorded Investment, Nonaccrual Status	0	0
Financing Receivable, Recorded Investment, Total Past Due	50	315
Financing Receivable, Recorded Investment, Current	24,039	29,553
Loans and Leases Receivable, Net	24,089	29,868
Acquired (non-covered) | Commercial and Industrial	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Financing Receivable, Recorded Investment, 30 to 59 Days Past Due	0	113
Financing Receivable, Recorded Investment, 60 to 89 Days Past Due	5	0
Financing Receivable, Recorded Investment, Greater than 90 Days Past Due	0	0
Financing Receivable, Recorded Investment, Nonaccrual Status	591	248
Financing Receivable, Recorded Investment, Total Past Due	596	361
Financing Receivable, Recorded Investment, Current	22,857	26,097
Loans and Leases Receivable, Net	23,453	26,458
Acquired (non-covered) | Residential Construction	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Financing Receivable, Recorded Investment, 30 to 59 Days Past Due	0	136
Financing Receivable, Recorded Investment, 60 to 89 Days Past Due	0	0
Financing Receivable, Recorded Investment, Greater than 90 Days Past Due	0	0
Financing Receivable, Recorded Investment, Nonaccrual Status	0	0
Financing Receivable, Recorded Investment, Total Past Due	0	136
Financing Receivable, Recorded Investment, Current	2,782	12,674
Loans and Leases Receivable, Net	2,782	12,810
Acquired (non-covered) | Residential Mortgage	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Financing Receivable, Recorded Investment, 30 to 59 Days Past Due	950	960
Financing Receivable, Recorded Investment, 60 to 89 Days Past Due	514	0
Financing Receivable, Recorded Investment, Greater than 90 Days Past Due	0	0
Financing Receivable, Recorded Investment, Nonaccrual Status	1,665	1,425
Financing Receivable, Recorded Investment, Total Past Due	3,129	2,385
Financing Receivable, Recorded Investment, Current	105,110	64,144
Loans and Leases Receivable, Net	108,239	66,529
Acquired (non-covered) | Consumer and Other	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Financing Receivable, Recorded Investment, 30 to 59 Days Past Due	108	1
Financing Receivable, Recorded Investment, 60 to 89 Days Past Due	1	1
Financing Receivable, Recorded Investment, Greater than 90 Days Past Due	0	0
Financing Receivable, Recorded Investment, Nonaccrual Status	24	5
Financing Receivable, Recorded Investment, Total Past Due	133	7
Financing Receivable, Recorded Investment, Current	3,713	911
Loans and Leases Receivable, Net	3,846	918
Acquired (non-covered) | Financing Receivable	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Financing Receivable, Recorded Investment, 30 to 59 Days Past Due	1,224	2,780
Financing Receivable, Recorded Investment, 60 to 89 Days Past Due	520	1
Financing Receivable, Recorded Investment, Greater than 90 Days Past Due	0	0
Financing Receivable, Recorded Investment, Nonaccrual Status	2,885	2,857
Financing Receivable, Recorded Investment, Total Past Due	4,629	5,638
Financing Receivable, Recorded Investment, Current	379,351	341,534
Loans and Leases Receivable, Net	383,980	347,172
Acquired (covered) | Commercial Real Estate	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Financing Receivable, Recorded Investment, 30 to 59 Days Past Due	1,145	5,257
Financing Receivable, Recorded Investment, 60 to 89 Days Past Due	848	84
Financing Receivable, Recorded Investment, Greater than 90 Days Past Due	0	0
Financing Receivable, Recorded Investment, Nonaccrual Status	8,086	12,730
Financing Receivable, Recorded Investment, Total Past Due	10,079	18,071
Financing Receivable, Recorded Investment, Current	86,373	96,686
Loans and Leases Receivable, Net	96,452	114,757
Acquired (covered) | Commercial Construction	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Financing Receivable, Recorded Investment, 30 to 59 Days Past Due	201	0
Financing Receivable, Recorded Investment, 60 to 89 Days Past Due	38	113
Financing Receivable, Recorded Investment, Greater than 90 Days Past Due	0	0
Financing Receivable, Recorded Investment, Nonaccrual Status	5,111	14,961
Financing Receivable, Recorded Investment, Total Past Due	5,350	15,074
Financing Receivable, Recorded Investment, Current	12,981	18,373
Loans and Leases Receivable, Net	18,331	33,447
Acquired (covered) | Commercial and Industrial	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Financing Receivable, Recorded Investment, 30 to 59 Days Past Due	0	55
Financing Receivable, Recorded Investment, 60 to 89 Days Past Due	47	0
Financing Receivable, Recorded Investment, Greater than 90 Days Past Due	0	0
Financing Receivable, Recorded Investment, Nonaccrual Status	640	1,170
Financing Receivable, Recorded Investment, Total Past Due	687	1,225
Financing Receivable, Recorded Investment, Current	5,232	9,673
Loans and Leases Receivable, Net	5,919	10,898
Acquired (covered) | Residential Construction	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Financing Receivable, Recorded Investment, 30 to 59 Days Past Due	0	0
Financing Receivable, Recorded Investment, 60 to 89 Days Past Due	0	0
Financing Receivable, Recorded Investment, Greater than 90 Days Past Due	0	0
Financing Receivable, Recorded Investment, Nonaccrual Status	0	0
Financing Receivable, Recorded Investment, Total Past Due	0	0
Financing Receivable, Recorded Investment, Current	16	215
Loans and Leases Receivable, Net	16	215
Acquired (covered) | Residential Mortgage	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Financing Receivable, Recorded Investment, 30 to 59 Days Past Due	313	3,593
Financing Receivable, Recorded Investment, 60 to 89 Days Past Due	28	352
Financing Receivable, Recorded Investment, Greater than 90 Days Past Due	0	0
Financing Receivable, Recorded Investment, Nonaccrual Status	9,818	18,057
Financing Receivable, Recorded Investment, Total Past Due	10,159	22,002
Financing Receivable, Recorded Investment, Current	54,865	65,013
Loans and Leases Receivable, Net	65,024	87,015
Acquired (covered) | Consumer and Other	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Financing Receivable, Recorded Investment, 30 to 59 Days Past Due	8	70
Financing Receivable, Recorded Investment, 60 to 89 Days Past Due	2	1
Financing Receivable, Recorded Investment, Greater than 90 Days Past Due	0	0
Financing Receivable, Recorded Investment, Nonaccrual Status	90	63
Financing Receivable, Recorded Investment, Total Past Due	100	134
Financing Receivable, Recorded Investment, Current	1,819	2,464
Loans and Leases Receivable, Net	1,919	2,598
Acquired (covered) | Financing Receivable	'	'
Financing Receivable, Recorded Investment, Past Due [Line Items]	'	'
Financing Receivable, Recorded Investment, 30 to 59 Days Past Due	1,667	8,975
Financing Receivable, Recorded Investment, 60 to 89 Days Past Due	963	550
Financing Receivable, Recorded Investment, Greater than 90 Days Past Due	0	0
Financing Receivable, Recorded Investment, Nonaccrual Status	23,745	46,981
Financing Receivable, Recorded Investment, Total Past Due	26,375	56,506
Financing Receivable, Recorded Investment, Current	161,286	192,424
Loans and Leases Receivable, Net	$187,661	$248,930

Recovered_Sheet2

Loans and Allowance for Loan Losses - Financing Receivable Credit Quality indicators (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans and Leases Receivable, Net	$2,276,517	$2,035,258
Financing Receivable	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans and Leases Receivable, Net	2,276,517	2,035,258
Pass Credits	1,994,993	1,709,260
Special Mention	137,550	141,420
Substandard	133,648	152,805
Doubtful	10,326	31,379
Loss	0	394
Originated | Commercial Real Estate	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans and Leases Receivable, Net	1,014,633	824,097
Pass Credits	930,554	739,050
Special Mention	37,685	39,562
Substandard	46,394	45,485
Doubtful	0	0
Loss	0	0
Originated | Commercial Construction	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans and Leases Receivable, Net	202,140	153,879
Pass Credits	175,365	115,996
Special Mention	13,113	18,088
Substandard	13,662	19,795
Doubtful	0	0
Loss	0	0
Originated | Commercial and Industrial	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans and Leases Receivable, Net	139,567	124,412
Pass Credits	131,658	117,546
Special Mention	5,411	4,385
Substandard	2,498	2,481
Doubtful	0	0
Loss	0	0
Originated | Leases	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans and Leases Receivable, Net	16,137	13,209
Pass Credits	16,137	13,209
Special Mention	0	0
Substandard	0	0
Doubtful	0	0
Loss	0	0
Originated | Residential Construction	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans and Leases Receivable, Net	29,636	21,704
Pass Credits	28,160	19,546
Special Mention	1,120	440
Substandard	356	1,718
Doubtful	0	0
Loss	0	0
Originated | Residential Mortgage	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans and Leases Receivable, Net	294,660	292,731
Pass Credits	258,042	250,083
Special Mention	19,234	21,831
Substandard	17,384	20,817
Doubtful	0	0
Loss	0	0
Originated | Consumer and Other	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans and Leases Receivable, Net	8,103	9,124
Pass Credits	7,807	8,760
Special Mention	177	320
Substandard	119	44
Doubtful	0	0
Loss	0	0
Originated | Financing Receivable	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans and Leases Receivable, Net	1,704,876	1,439,156
Pass Credits	1,547,723	1,264,190
Special Mention	76,740	84,626
Substandard	80,413	90,340
Doubtful	0	0
Loss	0	0
Acquired (non-covered) | Commercial Real Estate	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans and Leases Receivable, Net	221,571	210,589
Pass Credits	195,526	192,016
Special Mention	17,343	6,993
Substandard	8,702	11,080
Doubtful	0	500
Loss	0	0
Acquired (non-covered) | Commercial Construction	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans and Leases Receivable, Net	24,089	29,868
Pass Credits	21,126	24,060
Special Mention	922	2,228
Substandard	2,041	3,580
Doubtful	0	0
Loss	0	0
Acquired (non-covered) | Commercial and Industrial	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans and Leases Receivable, Net	23,453	26,458
Pass Credits	18,681	24,491
Special Mention	3,328	1,401
Substandard	1,444	326
Doubtful	0	0
Loss	0	240
Acquired (non-covered) | Residential Construction	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans and Leases Receivable, Net	2,782	12,810
Pass Credits	2,782	7,086
Special Mention	0	176
Substandard	0	5,548
Doubtful	0	0
Loss	0	0
Acquired (non-covered) | Residential Mortgage	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans and Leases Receivable, Net	108,239	66,529
Pass Credits	91,847	57,965
Special Mention	10,766	4,445
Substandard	5,626	4,119
Doubtful	0	0
Loss	0	0
Acquired (non-covered) | Consumer and Other	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans and Leases Receivable, Net	3,846	918
Pass Credits	3,760	903
Special Mention	62	10
Substandard	24	5
Doubtful	0	0
Loss	0	0
Acquired (non-covered) | Financing Receivable	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans and Leases Receivable, Net	383,980	347,172
Pass Credits	333,722	306,521
Special Mention	32,421	15,253
Substandard	17,837	24,658
Doubtful	0	500
Loss	0	240
Acquired (covered) | Commercial Real Estate	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans and Leases Receivable, Net	96,452	114,757
Pass Credits	61,091	69,401
Special Mention	12,831	19,744
Substandard	17,929	14,960
Doubtful	4,601	10,642
Loss	0	10
Acquired (covered) | Commercial Construction	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans and Leases Receivable, Net	18,331	33,447
Pass Credits	9,756	14,605
Special Mention	1,397	1,493
Substandard	6,751	9,715
Doubtful	427	7,634
Loss	0	0
Acquired (covered) | Commercial and Industrial	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans and Leases Receivable, Net	5,919	10,898
Pass Credits	4,231	6,251
Special Mention	796	2,745
Substandard	332	1,118
Doubtful	560	784
Loss	0	0
Acquired (covered) | Residential Construction	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans and Leases Receivable, Net	16	215
Pass Credits	0	16
Special Mention	16	199
Substandard	0	0
Doubtful	0	0
Loss	0	0
Acquired (covered) | Residential Mortgage	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans and Leases Receivable, Net	65,024	87,015
Pass Credits	36,744	46,039
Special Mention	13,246	17,069
Substandard	10,296	11,956
Doubtful	4,738	11,808
Loss	0	143
Acquired (covered) | Consumer and Other	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans and Leases Receivable, Net	1,919	2,598
Pass Credits	1,726	2,237
Special Mention	103	291
Substandard	90	58
Doubtful	0	11
Loss	0	1
Acquired (covered) | Financing Receivable	'	'
Financing Receivable, Recorded Investment [Line Items]	'	'
Loans and Leases Receivable, Net	187,661	248,930
Pass Credits	113,548	138,549
Special Mention	28,389	41,541
Substandard	35,398	37,807
Doubtful	10,326	30,879
Loss	$0	$154

Recovered_Sheet3

Loans and Allowance for Loan Losses - Troubled Debt Restructurings on Financing Receivables (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Commercial Real Estate	'	'
Financing Receivable, Modifications [Line Items]	'	'
Financing Receivable, Modifications, Recorded Investment	$5,093	$18,324
Financing Receivables, Modifications, Allowance For Loan Losses Allocated	767	904
Commercial Construction	'	'
Financing Receivable, Modifications [Line Items]	'	'
Financing Receivable, Modifications, Recorded Investment	5,746	12,450
Financing Receivables, Modifications, Allowance For Loan Losses Allocated	520	1,960
Commercial and Industrial	'	'
Financing Receivable, Modifications [Line Items]	'	'
Financing Receivable, Modifications, Recorded Investment	662	1,351
Financing Receivables, Modifications, Allowance For Loan Losses Allocated	36	0
Residential Mortgage	'	'
Financing Receivable, Modifications [Line Items]	'	'
Financing Receivable, Modifications, Recorded Investment	7,170	12,654
Financing Receivables, Modifications, Allowance For Loan Losses Allocated	476	1,165
Consumer and Other	'	'
Financing Receivable, Modifications [Line Items]	'	'
Financing Receivable, Modifications, Recorded Investment	142	133
Financing Receivables, Modifications, Allowance For Loan Losses Allocated	11	0
Total Troubled Debt Restructurings	'	'
Financing Receivable, Modifications [Line Items]	'	'
Financing Receivable, Modifications, Recorded Investment	18,813	44,912
Financing Receivables, Modifications, Allowance For Loan Losses Allocated	1,810	4,029
Total Number Of Contracts	53	64
Accrual | Commercial Real Estate	'	'
Financing Receivable, Modifications [Line Items]	'	'
Financing Receivable, Modifications, Recorded Investment	3,986	16,010
Accrual | Commercial Construction	'	'
Financing Receivable, Modifications [Line Items]	'	'
Financing Receivable, Modifications, Recorded Investment	5,472	11,420
Accrual | Commercial and Industrial	'	'
Financing Receivable, Modifications [Line Items]	'	'
Financing Receivable, Modifications, Recorded Investment	662	322
Accrual | Residential Mortgage	'	'
Financing Receivable, Modifications [Line Items]	'	'
Financing Receivable, Modifications, Recorded Investment	6,545	8,015
Accrual | Consumer and Other	'	'
Financing Receivable, Modifications [Line Items]	'	'
Financing Receivable, Modifications, Recorded Investment	105	122
Accrual | Total Troubled Debt Restructurings	'	'
Financing Receivable, Modifications [Line Items]	'	'
Financing Receivable, Modifications, Recorded Investment	16,770	35,889
Total Number Of Contracts	43	44
Nonaccrual | Commercial Real Estate	'	'
Financing Receivable, Modifications [Line Items]	'	'
Financing Receivable, Modifications, Recorded Investment	1,107	2,314
Nonaccrual | Commercial Construction	'	'
Financing Receivable, Modifications [Line Items]	'	'
Financing Receivable, Modifications, Recorded Investment	274	1,030
Nonaccrual | Commercial and Industrial	'	'
Financing Receivable, Modifications [Line Items]	'	'
Financing Receivable, Modifications, Recorded Investment	0	1,029
Nonaccrual | Residential Mortgage	'	'
Financing Receivable, Modifications [Line Items]	'	'
Financing Receivable, Modifications, Recorded Investment	625	4,639
Nonaccrual | Consumer and Other	'	'
Financing Receivable, Modifications [Line Items]	'	'
Financing Receivable, Modifications, Recorded Investment	37	11
Nonaccrual | Total Troubled Debt Restructurings	'	'
Financing Receivable, Modifications [Line Items]	'	'
Financing Receivable, Modifications, Recorded Investment	$2,043	$9,023
Total Number Of Contracts	10	20

Recovered_Sheet4

Loans and Allowance for Loan Losses - Troubled Debt Restructurings by Modification Category (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Interest Rate Modification	'	'
Financing Receivable, Modifications [Line Items]	'	'
Commercial and Industrial	$101	$71
Commercial Real Estate Construction	128	0
Commercial Real Estate	0	0
Residential Mortgage	452	0
Consumer and Other	0	0
Total Modifications	681	71
Term Modification	'	'
Financing Receivable, Modifications [Line Items]	'	'
Commercial and Industrial	648	1,374
Commercial Real Estate Construction	0	1,897
Commercial Real Estate	129	31
Residential Mortgage	84	0
Consumer and Other	23	0
Total Modifications	884	3,302
Interest Only Modification	'	'
Financing Receivable, Modifications [Line Items]	'	'
Commercial and Industrial	331	2,870
Commercial Real Estate Construction	152	663
Commercial Real Estate	536	0
Residential Mortgage	1,076	2,679
Consumer and Other	0	11
Total Modifications	2,095	6,223
Payment Modification	'	'
Financing Receivable, Modifications [Line Items]	'	'
Commercial and Industrial	0	0
Commercial Real Estate Construction	0	0
Commercial Real Estate	0	0
Residential Mortgage	0	829
Consumer and Other	0	0
Total Modifications	0	829
Combination Modification	'	'
Financing Receivable, Modifications [Line Items]	'	'
Commercial and Industrial	1,035	10,503
Commercial Real Estate Construction	827	2,238
Commercial Real Estate	0	290
Residential Mortgage	573	2,726
Consumer and Other	0	0
Total Modifications	2,435	15,757
Total Modifications Value	'	'
Financing Receivable, Modifications [Line Items]	'	'
Commercial and Industrial	2,115	14,818
Commercial Real Estate Construction	1,107	4,798
Commercial Real Estate	665	321
Residential Mortgage	2,185	6,234
Consumer and Other	23	11
Total Modifications	$6,095	$26,182

Recovered_Sheet5

Loans and Allowance for Loan Losses - Loans Modified in Troubled Debt Restructurings During the Previous 12 months Which Experienced a Payment Default, Period End Balance (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Commercial Real Estate	'	'
Financing Receivable, Modifications [Line Items]	'	'
Financing Receivable Subsequent Default	$5,906	$337
Commercial Construction	'	'
Financing Receivable, Modifications [Line Items]	'	'
Financing Receivable Subsequent Default	29	'
Commercial and Industrial	'	'
Financing Receivable, Modifications [Line Items]	'	'
Financing Receivable Subsequent Default	630	'
Residential Mortgage	'	'
Financing Receivable, Modifications [Line Items]	'	'
Financing Receivable Subsequent Default	$668	$1,438

Recovered_Sheet6

Loans and Allowance for Loan Losses - Loan Sale Activity On Single Family Residential First Mortgage Loans Originated For Sale On A Presold Basis (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Receivables [Abstract]	'	'	'
Loans Receivable Held-for-sale, Net	$30,899	$57,414	$9,596
Proceeds from sales of loans held for sale	352,130	233,276	91,942
Mortgage fees	$8,979	$6,169	$2,230

Recovered_Sheet7

Loans and Allowance for Loan Losses - Additional Information (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Receivables [Abstract]	'	'
Loans and Leases Receivable, Deferred Income	$2.30	$1.40
Acquisition Date Unpaid Balance Of Loans Without Credit Deterioration	158	254.3
Acquisition Date Estimated Fair Value Of Loans Without Credit Deterioration	152.1	240.8
Acquisition Date Discount Recorded On Loans Without Credit Deterioration	5.9	13.5
Loans and Leases Receivable, Collateral for Secured Borrowings	702.5	462.4
Second Mortgage Loans That We Do Not Own Or Service First Mortgage	$103.10	'
Total Second Liens Held by Company, Percent	97.00%	'
Home Equity Line of Credit Maturity and Draw Period	'15 years	'
Percent Home Equity Loans Paying Only Interest	96.00%	'

FDIC_Indemnification_Asset_FDI

FDIC Indemnification Asset - FDIC Indemnification Asset Roll Forward (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
FDIC Indemnification Asset [Abstract]	'	'
Description of Regulatory Assistance	80.00%	'
FDIC Indemnification Asset [Roll Forward]	'	'
FDIC Indemnification Asset, Beginning Balance	$53,519	$91,851
Accretion of Present Value Discount, Net	192	1,391
FDIC Indemnification Asset, Acquisitions	-2,248	20,493
Receipt of Payments from FDIC	-34,577	-60,216
FDIC Indemnification Asset, Ending Balance	$16,886	$53,519

Premises_and_Equipment_Summary

Premises and Equipment - Summary of Premises and Equipment (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Property, Plant and Equipment, Gross [Abstract]	'	'
Land	$23,264	$20,116
Buildings and Leasehold Improvements	49,689	42,584
Furniture, Fixtures and Equipment	20,290	16,654
Construction in Progress, Gross	178	474
Premises and Equipment, Gross	93,421	79,828
Less Accumulated Depreciation and Amortization	-17,295	-13,213
Premises and equipment, net	$76,126	$66,615

Premises_and_Equipment_Schedul

Premises and Equipment - Schedule of Operating Lease Commitments (Details) (USD $)	Dec. 31, 2013
In Thousands, unless otherwise specified
Property, Plant and Equipment [Abstract]	'
2014	$2,776
2015	2,432
2016	2,190
2017	1,988
2018	1,861
Thereafter	5,421
Total	$16,668

Premises_and_Equipment_Additio

Premises and Equipment - Additional Information (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Property, Plant and Equipment [Abstract]	'	'	'
Total Depreciation And Amotization Of Premises And Equipment	$4.20	$3	$2.30
Operating Leases, Rent Expense	$3.10	$2.40	$2

Derivatives_Schedule_of_Intere

Derivatives - Schedule of Interest Rate Derivatives (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Interest Rate Derivatives [Line Items]	'	'
Derivative Asset, Fair Value, Gross Asset	$3,788	$2,044
Designated as Hedging Instrument	'	'
Interest Rate Derivatives [Line Items]	'	'
Derivative Asset, Fair Value, Gross Asset	2,744	40
Derivative Asset, Notional Amount	375,000	250,000
Designated as Hedging Instrument | Interest Rate Cap	'	'
Interest Rate Derivatives [Line Items]	'	'
Derivative Asset, Notional Amount	250,000	250,000
Designated as Hedging Instrument | Interest Rate Cap | Other Assets	'	'
Interest Rate Derivatives [Line Items]	'	'
Derivative Asset, Fair Value, Gross Asset	0	40
Designated as Hedging Instrument | Interest Rate Swap	'	'
Interest Rate Derivatives [Line Items]	'	'
Derivative Asset, Notional Amount	125,000	0
Designated as Hedging Instrument | Interest Rate Swap | Other Assets	'	'
Interest Rate Derivatives [Line Items]	'	'
Derivative Asset, Fair Value, Gross Asset	2,744	0
Not Designated as Hedging Instrument	'	'
Interest Rate Derivatives [Line Items]	'	'
Derivative Asset, Fair Value, Gross Asset	522	1,002
Derivative Asset, Notional Amount	31,221	18,023
Not Designated as Hedging Instrument | Interest Rate Cap	'	'
Interest Rate Derivatives [Line Items]	'	'
Derivative Asset, Notional Amount	3,256	6,524
Not Designated as Hedging Instrument | Interest Rate Cap | Other Assets	'	'
Interest Rate Derivatives [Line Items]	'	'
Derivative Asset, Fair Value, Gross Asset	98	330
Not Designated as Hedging Instrument | Interest Rate Swap	'	'
Interest Rate Derivatives [Line Items]	'	'
Derivative Asset, Notional Amount	27,965	11,499
Derivative Liability, Notional Amount	31,221	18,023
Not Designated as Hedging Instrument | Interest Rate Swap | Other Assets	'	'
Interest Rate Derivatives [Line Items]	'	'
Derivative Asset, Fair Value, Gross Asset	424	672
Not Designated as Hedging Instrument | Interest Rate Swap | Accrued Expenses and Other Liabilities	'	'
Interest Rate Derivatives [Line Items]	'	'
Derivative Liability, Fair Value, Gross Liability	$522	$1,002

Derivatives_Summary_of_Offsett

Derivatives - Summary of Offsetting Assets and Liabilities (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Derivative [Line Items]	'	'
Derivative Asset, Fair Value, Gross Asset	$3,788	$2,044
Derivative Asset	3,788	2,044
Derivative, Collateral, Right to Reclaim Cash	1,452	1,002
Derivative Asset, Fair Value, Amount Not Offset Against Collateral	2,336	1,042
Derivative Assets	'	'
Derivative [Line Items]	'	'
Derivative Asset, Fair Value, Gross Asset	3,266	1,042
Derivative Asset	3,266	1,042
Derivative, Collateral, Right to Reclaim Cash	930	0
Derivative Asset, Fair Value, Amount Not Offset Against Collateral	2,336	1,042
Derivative Liabilities	'	'
Derivative [Line Items]	'	'
Derivative Asset, Fair Value, Gross Asset	522	1,002
Derivative Asset	522	1,002
Derivative, Collateral, Right to Reclaim Cash	522	1,002
Derivative Asset, Fair Value, Amount Not Offset Against Collateral	$0	$0

Derivatives_Schedule_of_Cash_F

Derivatives - Schedule of Cash Flow Hedges Included in Accumulated Other Comprehensive Income (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Derivative Instruments and Hedging Activities Disclosure [Abstract]	'		'		'
Amount of net gain (losses) recorded in OCI (effective portion)	$1,662		($364)		($3,304)
Amount of net loss reclassified from OCI to earnings	$6,103	[1]	$4,878	[1]	$3,146	[1]
[1]	Amount recorded in interest expense on demand deposits in the Consolidated Statements of Income

Derivatives_Additional_Informa

Derivatives - Additional Information (Details) (USD $)

12 Months Ended

3 Months Ended

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Mar. 31, 2009

Mar. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

2009 Interest Rate Cap Derivative Contract

2013 Interest Rate Swap Derivative Contract

Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges

Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges

Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges

Not Designated as Hedging Instrument

Not Designated as Hedging Instrument

Interest Rate Swap

Interest Rate Swap

Accrued Expenses and Other Liabilities

Accrued Expenses and Other Liabilities

Not Designated as Hedging Instrument

Not Designated as Hedging Instrument

Interest Rate Swap

Interest Rate Swap

Not Designated as Hedging Instrument

Not Designated as Hedging Instrument

Derivative [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Accumulated other comprehensive income

$3,306,000

$5,429,000

$1,010,000

'

'

$1,441,000

($6,324,000)

($10,838,000)

'

'

'

'

'

'

Derivative, Term of Contract

'

'

'

'5 years

'

'

'

'

'

'

'

'

'

'

Derivative, Notional Amount

'

'

'

250,000,000

125,000,000

'

'

'

'

18,000,000

'

'

'

'

Amount Designated To Unsecured Variable Rate Money Market Funding Arrangement

'

'

'

250,000,000

125,000,000

'

'

'

'

'

'

'

'

'

Derivative, Inception Date

'

'

'

'

16-Sep-14

'

'

'

'

'

'

'

'

'

Derivative, Maturity Date

'

'

'

16-Feb-14

18-Mar-19

'

'

'

'

'

'

'

'

'

Derivative, Description of Variable Rate Basis

'

'

'

'

'one-month LIBOR

'

'

'

'

'

'

'

'

'

Derivative Asset, Notional Amount

'

'

'

'

'

'

'

'

31,221,000

18,023,000

27,965,000

11,499,000

'

'

Unrealized Gain (Loss) on Interest Rate Cash Flow Hedges, Pretax, Accumulated Other Comprehensive Income (Loss)

1,662,000

-364,000

-3,304,000

'

'

'

'

'

'

'

'

'

'

'

Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months

300,000

'

'

'

'

'

'

'

'

'

'

'

'

'

Gain (Loss) on Interest Rate Cash Flow Hedge Ineffectiveness

0

0

0

'

'

'

'

'

'

'

'

'

'

'

Derivative Liability, Fair Value, Gross Liability

'

'

'

'

'

'

'

'

'

'

'

'

522,000

1,002,000

Collateral Already Posted, Aggregate Fair Value

$1,200,000

'

'

'

'

'

'

'

'

'

'

'

'

'

Goodwill_and_Other_Intangibles2

Goodwill and Other Intangibles - Schedule of Intangible Assets and Goodwill (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Goodwill [Roll Forward]	'	'	'
Goodwill, Beginning Balance	$27,111	$26,129	'
Goodwill, Acquired During Period	1,273	982	'
Goodwill, Ending Balance	28,384	27,111	26,129
Finite-lived Intangible Assets [Roll Forward]	'	'	'
Finite-Lived Intangible Assets, Beginning Balance Net	5,082	2,986	'
Finite-lived Intangible Assets Acquired	2,676	2,663	'
Finite Lived Intangible Assets Amortization Expense	-1,176	-567	'
Finite-Lived Intangible Assets, Ending Balance Net	6,582	5,082	2,986
Goodwill and Other Intangibles [Roll Forward]	'	'	'
Intangible Assets, Beginning Balance Net (Including Goodwill)	32,193	29,115	'
Goodwill and Other Intangibles Acquisitions	3,949	3,645	'
Amortization of Intangible Assets	-1,176	-567	-416
Intangible Assets, Ending Balance Net (Including Goodwill)	$34,966	$32,193	$29,115

Goodwill_and_Other_Intangibles3

Goodwill and Other Intangibles - Schedule of Core Deposit Intangible Assets (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
In Thousands, unless otherwise specified
Goodwill and Intangible Assets Disclosure [Abstract]	'	'	'
Gross carrying amount	$9,914	$7,238	'
Accumulated amortization	-3,332	-2,156	'
Finite-Lived Intangible Assets, Total	$6,582	$5,082	$2,986

Goodwill_and_Other_Intangibles4

Goodwill and Other Intangibles - Schedule of Expected Amortization Expense (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
In Thousands, unless otherwise specified
Goodwill and Intangible Assets Disclosure [Abstract]	'	'	'
2014	$1,438	'	'
2015	1,263	'	'
2016	1,112	'	'
2017	974	'	'
2018	974	'	'
Thereafter	821	'	'
Finite-Lived Intangible Assets, Total	$6,582	$5,082	$2,986

Goodwill_and_Other_Intangibles5

Goodwill and Other Intangibles - Additional Information (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Finite-Lived Intangible Assets [Line Items]	'	'	'
Amortization of intangible assets	$1,176	$567	$416
Core Deposits	'	'	'
Finite-Lived Intangible Assets [Line Items]	'	'	'
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	'5 years 7 months	'	'

Deposits_Maturities_of_Time_De

Deposits - Maturities of Time Deposits (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Time Deposits By Maturity [Line Items]	'	'
Total Time Deposits	$1,082,799	$1,159,615
Time Deposits Less Than $100,000	'	'
Time Deposits By Maturity [Line Items]	'	'
2014	217,752	'
2015	29,862	'
2016	7,535	'
2017	12,083	'
2018	2,634	'
Thereafter	1,722	'
Total Time Deposits	271,588	'
Time Deposits Greater Than $100,000	'	'
Time Deposits By Maturity [Line Items]	'	'
2014	601,819	'
2015	101,304	'
2016	64,608	'
2017	25,719	'
2018	11,901	'
Thereafter	5,860	'
Total Time Deposits	811,211	'
Total Time Deposits	'	'
Time Deposits By Maturity [Line Items]	'	'
2014	819,571	'
2015	131,166	'
2016	72,143	'
2017	37,802	'
2018	14,535	'
Thereafter	7,582	'
Total Time Deposits	$1,082,799	'

ShortTerm_Borrowings_Schedule_

Short-Term Borrowings - Schedule of Short Term Borrowings (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Short-term Debt [Abstract]	'	'
Securities Sold under Agreements to Repurchase	$27,202	$30,332
Federal Home Loan Bank, Advances, Short-term	97,300	2,000
Federal Funds Purchased	1,090	50
Short-term Debt	$125,592	$32,382

ShortTerm_Borrowings_Summary_o

Short-Term Borrowings - Summary of Additional Information on Short Term Borrowings (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Short-term Debt [Abstract]	'	'	'
Maximum Outstanding at any Month-End During the Year	$143,674	$40,149	$100,728
Average Outstanding Balance	$88,635	$30,573	$49,146
Average Interest Rate for the Year	0.49%	1.11%	0.99%
Average Interest Rate at Year-End	0.39%	0.51%	0.92%

ShortTerm_Borrowings_Additiona

Short-Term Borrowings - Additional Information (Details) (USD $)	Dec. 31, 2013
In Millions, unless otherwise specified
Short-term Debt [Line Items]	'
Federal Funds Line of Credit	$55
Federal Reserve Bank Amount Of Available Unused Funds	152.5
Investment Securities	'
Short-term Debt [Line Items]	'
Fair Value of Securities Received as Collateral that Can be Resold or Repledged	2.8
Commercial Loans	'
Short-term Debt [Line Items]	'
Fair Value of Securities Received as Collateral that Can be Resold or Repledged	$188.20

LongTerm_Debt_Schedule_of_Debt

Long-Term Debt - Schedule of Debt (Details) (USD $)	Dec. 31, 2013	Apr. 26, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Debt Disclosure [Abstract]	'	'	'
FHLB advances	$51,100	'	$62,000
Term loan	28,875	30,000	0
Junior subordinated debentures	23,713	'	26,173
Long-term Debt, Gross	103,688	'	88,173
FHLB Prepayment Penalty	2,179	'	0
Long-term debt	$101,509	'	$88,173

LongTerm_Debt_Schedule_of_Long

Long-Term Debt - Schedule of Long-Term Debt Instruments (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Debt Instrument [Line Items]	'	'
FHLB advances	$51,100	$62,000
December 2014 3.62%	'	'
Debt Instrument [Line Items]	'	'
FHLB advances	0	2,000
FHLB Advance Interest Rate	3.62%	'
December 2014 3.87%	'	'
Debt Instrument [Line Items]	'	'
FHLB advances	0	15,000
FHLB Advance Interest Rate	3.87%	'
January 2015 1.00%	'	'
Debt Instrument [Line Items]	'	'
FHLB advances	100	0
FHLB Advance Interest Rate	1.00%	'
August 2015 2.37%	'	'
Debt Instrument [Line Items]	'	'
FHLB advances	6,000	0
FHLB Advance Interest Rate	2.37%	'
September 2017 3.73%	'	'
Debt Instrument [Line Items]	'	'
FHLB advances	0	10,000
FHLB Advance Interest Rate	3.73%	'
September 2017 3.66%	'	'
Debt Instrument [Line Items]	'	'
FHLB advances	0	10,000
FHLB Advance Interest Rate	3.66%	'
January 2018 2.15%	'	'
Debt Instrument [Line Items]	'	'
FHLB advances	15,000	15,000
FHLB Advance Interest Rate	2.15%	'
January 2018 2.27%	'	'
Debt Instrument [Line Items]	'	'
FHLB advances	10,000	10,000
FHLB Advance Interest Rate	2.27%	'
January 2020 FHLB Advance I	'	'
Debt Instrument [Line Items]	'	'
FHLB advances	10,000	0
FHLB Advance Interest Rate	0.47%	'
January 2020 FHLB Advance II	'	'
Debt Instrument [Line Items]	'	'
FHLB advances	$10,000	$0
FHLB Advance Interest Rate	0.47%	'

LongTerm_Debt_Schedule_of_Juni

Long-Term Debt - Schedule of Junior Subordinated Debt Instruments (Details) (USD $)	12 Months Ended
In Thousands, except Share data, unless otherwise specified	Dec. 31, 2013		Dec. 31, 2012
Debt Instrument [Line Items]	'		'
Junior Subordinated Debenture Owed to Unconsolidated Subsidiary Trust	$23,713		$26,173
Debt Instrument, Interest Rate, Stated Percentage	5.50%		'
BNC Bancorp	'		'
Debt Instrument [Line Items]	'		'
Debt Instrument, Issuance Date	14-Sep-12	[1]	'
Debentures Shares Issued	2,435		'
Debt Instrument, Maturity Date	30-Jun-20		'
Junior Subordinated Debenture Owed to Unconsolidated Subsidiary Trust	0		2,460
Debt Instrument, Interest Rate, Stated Percentage	8.00%		'
BNC Bancorp Capital Trust I	'		'
Debt Instrument [Line Items]	'		'
Debt Instrument, Issuance Date	3-Apr-03		'
Debentures Shares Issued	5,000		'
Debt Instrument, Maturity Date	15-Apr-33		'
Junior Subordinated Debenture Owed to Unconsolidated Subsidiary Trust	5,155		5,155
Debt Instrument, Description of Variable Rate Basis	'LIBOR		'
Debt Instrument, Basis Spread on Variable Rate	3.25%		'
BNC Bancorp Capital Trust II	'		'
Debt Instrument [Line Items]	'		'
Debt Instrument, Issuance Date	11-Mar-04		'
Debentures Shares Issued	6,000		'
Debt Instrument, Maturity Date	7-Apr-34		'
Junior Subordinated Debenture Owed to Unconsolidated Subsidiary Trust	6,186		6,186
Debt Instrument, Description of Variable Rate Basis	'LIBOR		'
Debt Instrument, Basis Spread on Variable Rate	2.80%		'
BNC Bancorp Capital Trust III	'		'
Debt Instrument [Line Items]	'		'
Debt Instrument, Issuance Date	23-Sep-04		'
Debentures Shares Issued	5,000		'
Debt Instrument, Maturity Date	23-Sep-34		'
Junior Subordinated Debenture Owed to Unconsolidated Subsidiary Trust	5,155		5,155
Debt Instrument, Description of Variable Rate Basis	'LIBOR		'
Debt Instrument, Basis Spread on Variable Rate	2.40%		'
BNC Bancorp Capital Trust IV	'		'
Debt Instrument [Line Items]	'		'
Debt Instrument, Issuance Date	27-Sep-06		'
Debentures Shares Issued	7,000		'
Debt Instrument, Maturity Date	31-Dec-36		'
Junior Subordinated Debenture Owed to Unconsolidated Subsidiary Trust	$7,217		$7,217
Debt Instrument, Description of Variable Rate Basis	'LIBOR		'
Debt Instrument, Basis Spread on Variable Rate	1.70%		'
[1]	This subordinated debt obligation was assumed in the purchase of KeySource on September 14, 2012. On July 1, 2013, the Company exercised its redemption option on this debenture.

LongTerm_Debt_Additional_Infor

Long-Term Debt - Additional Information (Details) (USD $)	Dec. 31, 2013	Apr. 26, 2013	Dec. 31, 2012	Mar. 31, 2013	Dec. 31, 2013	Dec. 31, 2012
				Federal Home Loan Bank Advances	BNC Bancorp Capital Trusts	BNC Bancorp Capital Trusts
Debt Instrument [Line Items]	'	'	'	'	'	'
Federal Home Loan Bank, Advances, General Debt Obligations, Disclosures, Repayment and Penalties	'	'	'	$20,000,000	'	'
FHLB Prepayment Penalty	'	'	'	2,700,000	'	'
FHLB Advances, Maximum Amount Available	381,000,000	'	'	'	'	'
Real Estate Loans Pledged To FHLB	514,300,000	'	'	'	'	'
Investment Securities Pledged To FHLB	13,900,000	'	'	'	'	'
FHLB Advances, Weighted Average Interest Rate	2.46%	'	3.13%	'	'	'
Term loan	28,875,000	30,000,000	0	'	'	'
Debt Instrument, Interest Rate, Stated Percentage	5.50%	'	'	'	'	'
Investment in other subsidiaries	'	'	'	'	$700,000	$700,000
Weighted Average Rate Trust Preferred Debentures	2.86%	'	3.41%	'	'	'

Accumulated_Other_Comprehensiv2

Accumulated Other Comprehensive Income - Schedule of Accumulated Other Comprehensive Income (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Accumulated Other Comprehensive Income (Loss) [Line Items]	'	'	'
Accumulated Other Comprehensive Income (Loss), Net of Tax, Beginning Balance	$5,429	$1,010	'
Other Comprehensive Income Before Reclassifications	-7,963	1,730	'
Amounts Reclassified From Accumulated Other Comprehensive Income	5,840	2,689	'
Amounts Transferred Due To Securities Transferred From AFS To HTM	0	'	'
Total other comprehensive income (loss)	-2,123	4,419	7,808
Accumulated Other Comprehensive Income (Loss), Net of Tax, Ending Balance	3,306	5,429	1,010
Accumulated Net Unrealized Investment Gain (Loss)	'	'	'
Accumulated Other Comprehensive Income (Loss) [Line Items]	'	'	'
Accumulated Other Comprehensive Income (Loss), Net of Tax, Beginning Balance	8,872	8,637	'
Other Comprehensive Income Before Reclassifications	-9,625	2,094	'
Amounts Reclassified From Accumulated Other Comprehensive Income	26	-1,859	'
Amounts Transferred Due To Securities Transferred From AFS To HTM	-1,219	'	'
Total other comprehensive income (loss)	-10,818	235	'
Accumulated Other Comprehensive Income (Loss), Net of Tax, Ending Balance	-1,946	8,872	'
Unrealized Holding Gains Investment Securities Transferred From Available For Sale To Held To Maturity	'	'	'
Accumulated Other Comprehensive Income (Loss) [Line Items]	'	'	'
Accumulated Other Comprehensive Income (Loss), Net of Tax, Beginning Balance	2,881	3,211	'
Other Comprehensive Income Before Reclassifications	0	0	'
Amounts Reclassified From Accumulated Other Comprehensive Income	-289	-330	'
Amounts Transferred Due To Securities Transferred From AFS To HTM	1,219	'	'
Total other comprehensive income (loss)	930	-330	'
Accumulated Other Comprehensive Income (Loss), Net of Tax, Ending Balance	3,811	2,881	'
Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges	'	'	'
Accumulated Other Comprehensive Income (Loss) [Line Items]	'	'	'
Accumulated Other Comprehensive Income (Loss), Net of Tax, Beginning Balance	-6,324	-10,838	'
Other Comprehensive Income Before Reclassifications	1,662	-364	'
Amounts Reclassified From Accumulated Other Comprehensive Income	6,103	4,878	'
Amounts Transferred Due To Securities Transferred From AFS To HTM	0	'	'
Total other comprehensive income (loss)	7,765	4,514	'
Accumulated Other Comprehensive Income (Loss), Net of Tax, Ending Balance	$1,441	($6,324)	'

Accumulated_Other_Comprehensiv3

Accumulated Other Comprehensive Income - Reclassification Out of Accumulated Other Comprehensive Income (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Accumulated Other Comprehensive Income (Loss) [Line Items]	'		'		'
Income tax expense (benefit)	($4,045)		$1,700		$1,783
Amounts Reclassified From Accumulated Other Comprehensive Income	-5,840		-2,689		'
Unrealized Holding Gains Investment Securities Transferred From Available For Sale To Held To Maturity	'		'		'
Accumulated Other Comprehensive Income (Loss) [Line Items]	'		'		'
Amounts Reclassified From Accumulated Other Comprehensive Income	289		330		'
Unrealized Holding Gains Investment Securities Transferred From Available For Sale To Held To Maturity | Reclassification out of Accumulated Other Comprehensive Income	'		'		'
Accumulated Other Comprehensive Income (Loss) [Line Items]	'		'		'
Amounts Reclassified From Accumulated Other Comprehensive Income	289		330		'
Accumulated Net Unrealized Investment Gain (Loss)	'		'		'
Accumulated Other Comprehensive Income (Loss) [Line Items]	'		'		'
Amounts Reclassified From Accumulated Other Comprehensive Income	-26		1,859		'
Accumulated Net Unrealized Investment Gain (Loss) | Reclassification out of Accumulated Other Comprehensive Income	'		'		'
Accumulated Other Comprehensive Income (Loss) [Line Items]	'		'		'
Amounts Reclassified From Accumulated Other Comprehensive Income	-26		1,859		'
Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges	'		'		'
Accumulated Other Comprehensive Income (Loss) [Line Items]	'		'		'
Amounts Reclassified From Accumulated Other Comprehensive Income	-6,103		-4,878		'
Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges | Reclassification out of Accumulated Other Comprehensive Income	'		'		'
Accumulated Other Comprehensive Income (Loss) [Line Items]	'		'		'
Amounts Reclassified From Accumulated Other Comprehensive Income	-6,103		-4,878		'
Gain (Loss) on Sale of Investment Securities, Net | Accumulated Net Unrealized Investment Gain (Loss) | Reclassification out of Accumulated Other Comprehensive Income	'		'		'
Accumulated Other Comprehensive Income (Loss) [Line Items]	'		'		'
Reclassification From Accumulated Other Comprehensive Income Current Period Before Tax	-42		3,026		'
Interest Income - Investment Securities | Unrealized Holding Gains Investment Securities Transferred From Available For Sale To Held To Maturity | Reclassification out of Accumulated Other Comprehensive Income	'		'		'
Accumulated Other Comprehensive Income (Loss) [Line Items]	'		'		'
Reclassification From Accumulated Other Comprehensive Income Current Period Before Tax	623	[1]	538	[1]	'
Income Tax Benefit (Expense) | Unrealized Holding Gains Investment Securities Transferred From Available For Sale To Held To Maturity | Reclassification out of Accumulated Other Comprehensive Income	'		'		'
Accumulated Other Comprehensive Income (Loss) [Line Items]	'		'		'
Income tax expense (benefit)	-334		-208		'
Income Tax Benefit (Expense) | Accumulated Net Unrealized Investment Gain (Loss) | Reclassification out of Accumulated Other Comprehensive Income	'		'		'
Accumulated Other Comprehensive Income (Loss) [Line Items]	'		'		'
Income tax expense (benefit)	16		-1,167		'
Income Tax Benefit (Expense) | Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges | Reclassification out of Accumulated Other Comprehensive Income	'		'		'
Accumulated Other Comprehensive Income (Loss) [Line Items]	'		'		'
Income tax expense (benefit)	3,760		3,062		'
Interest Expense - Demand Deposits | Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges | Reclassification out of Accumulated Other Comprehensive Income	'		'		'
Accumulated Other Comprehensive Income (Loss) [Line Items]	'		'		'
Reclassification From Accumulated Other Comprehensive Income Current Period Before Tax	($9,863)		($7,940)		'
[1]	The amortization of the unrealized holding gains in accumulated other comprehensive income at the date of transfer partially offsets the amortization of the difference between the par value and fair value of the investment securities at the date of transfer. Both components are amortized as an adjustment of yield.

Fair_Value_Measurements_Schedu

Fair Value Measurements - Schedule of Fair Value, Assets and Liabilities, Measured on Recurring Basis (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investment securities available-for-sale, at fair value	$270,417	$341,539
Derivative Asset, Fair Value, Gross Asset	3,788	2,044
Fair Value, Inputs, Level 1	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investment securities available-for-sale, at fair value	0	0
Fair Value, Inputs, Level 2	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investment securities available-for-sale, at fair value	270,417	341,539
Fair Value, Inputs, Level 3	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investment securities available-for-sale, at fair value	0	0
Fair Value, Measurements, Recurring	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investment securities available-for-sale, at fair value	270,417	341,539
Derivative Asset, Fair Value, Gross Asset	3,266	1,042
Assets, Fair Value Disclosure, Recurring	273,683	342,581
Liabilities, Fair Value Disclosure, Recurring	522	1,002
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 1	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investment securities available-for-sale, at fair value	922	0
Derivative Asset, Fair Value, Gross Asset	0	0
Assets, Fair Value Disclosure, Recurring	922	0
Liabilities, Fair Value Disclosure, Recurring	0	0
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investment securities available-for-sale, at fair value	269,495	341,539
Derivative Asset, Fair Value, Gross Asset	3,266	1,042
Assets, Fair Value Disclosure, Recurring	272,761	342,581
Liabilities, Fair Value Disclosure, Recurring	522	1,002
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 3	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investment securities available-for-sale, at fair value	0	0
Derivative Asset, Fair Value, Gross Asset	0	0
Assets, Fair Value Disclosure, Recurring	0	0
Liabilities, Fair Value Disclosure, Recurring	0	0
US Government Agencies	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investment securities available-for-sale, at fair value	15,061	16,395
US Government Agencies | Fair Value, Measurements, Recurring	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investment securities available-for-sale, at fair value	15,061	16,395
US Government Agencies | Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 1	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investment securities available-for-sale, at fair value	0	0
US Government Agencies | Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investment securities available-for-sale, at fair value	15,061	16,395
US Government Agencies | Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 3	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investment securities available-for-sale, at fair value	0	0
State And Municipal Securities | Fair Value, Measurements, Recurring	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investment securities available-for-sale, at fair value	191,263	223,886
State And Municipal Securities | Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 1	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investment securities available-for-sale, at fair value	0	0
State And Municipal Securities | Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investment securities available-for-sale, at fair value	191,263	223,886
State And Municipal Securities | Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 3	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investment securities available-for-sale, at fair value	0	0
Corporate Debt Securities	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investment securities available-for-sale, at fair value	8,889	'
Corporate Debt Securities | Fair Value, Measurements, Recurring	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investment securities available-for-sale, at fair value	8,889	'
Corporate Debt Securities | Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 1	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investment securities available-for-sale, at fair value	0	'
Corporate Debt Securities | Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investment securities available-for-sale, at fair value	8,889	'
Corporate Debt Securities | Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 3	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investment securities available-for-sale, at fair value	0	'
Other Debt Securities	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investment securities available-for-sale, at fair value	4,380	'
Other Debt Securities | Fair Value, Measurements, Recurring	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investment securities available-for-sale, at fair value	4,380	'
Other Debt Securities | Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 1	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investment securities available-for-sale, at fair value	0	'
Other Debt Securities | Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investment securities available-for-sale, at fair value	4,380	'
Other Debt Securities | Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 3	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investment securities available-for-sale, at fair value	0	'
Equity Securities	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investment securities available-for-sale, at fair value	922	'
Equity Securities | Fair Value, Measurements, Recurring	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investment securities available-for-sale, at fair value	922	'
Equity Securities | Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 1	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investment securities available-for-sale, at fair value	922	'
Equity Securities | Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investment securities available-for-sale, at fair value	0	'
Equity Securities | Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 3	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investment securities available-for-sale, at fair value	0	'
Residential Government Sponsored Mortgage Backed Securities	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investment securities available-for-sale, at fair value	42,014	86,890
Residential Government Sponsored Mortgage Backed Securities | Fair Value, Measurements, Recurring	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investment securities available-for-sale, at fair value	42,014	86,890
Residential Government Sponsored Mortgage Backed Securities | Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 1	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investment securities available-for-sale, at fair value	0	0
Residential Government Sponsored Mortgage Backed Securities | Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investment securities available-for-sale, at fair value	42,014	86,890
Residential Government Sponsored Mortgage Backed Securities | Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 3	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investment securities available-for-sale, at fair value	0	0
Other Mortgage-backed Securities, Issued by US Government Sponsored Enterprises	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investment securities available-for-sale, at fair value	7,888	14,368
Other Mortgage-backed Securities, Issued by US Government Sponsored Enterprises | Fair Value, Measurements, Recurring	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investment securities available-for-sale, at fair value	7,888	14,368
Other Mortgage-backed Securities, Issued by US Government Sponsored Enterprises | Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 1	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investment securities available-for-sale, at fair value	0	0
Other Mortgage-backed Securities, Issued by US Government Sponsored Enterprises | Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investment securities available-for-sale, at fair value	7,888	14,368
Other Mortgage-backed Securities, Issued by US Government Sponsored Enterprises | Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 3	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Investment securities available-for-sale, at fair value	0	0
Interest Rate Swap | Fair Value, Measurements, Recurring	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative Instruments in Hedges, Assets, at Fair Value	2,744	'
Derivative Instruments Not Designated as Hedging Instruments, Asset, at Fair Value	424	672
Derivative Instruments Not Designated as Hedging Instruments, Liability, at Fair Value	522	1,002
Interest Rate Swap | Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 1	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative Instruments in Hedges, Assets, at Fair Value	0	'
Derivative Instruments Not Designated as Hedging Instruments, Asset, at Fair Value	0	0
Derivative Instruments Not Designated as Hedging Instruments, Liability, at Fair Value	0	0
Interest Rate Swap | Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative Instruments in Hedges, Assets, at Fair Value	2,744	'
Derivative Instruments Not Designated as Hedging Instruments, Asset, at Fair Value	424	672
Derivative Instruments Not Designated as Hedging Instruments, Liability, at Fair Value	522	1,002
Interest Rate Swap | Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 3	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative Instruments in Hedges, Assets, at Fair Value	0	'
Derivative Instruments Not Designated as Hedging Instruments, Asset, at Fair Value	0	0
Derivative Instruments Not Designated as Hedging Instruments, Liability, at Fair Value	0	0
Interest Rate Cap | Fair Value, Measurements, Recurring	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative Instruments in Hedges, Assets, at Fair Value	0	40
Derivative Instruments Not Designated as Hedging Instruments, Asset, at Fair Value	98	330
Interest Rate Cap | Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 1	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative Instruments in Hedges, Assets, at Fair Value	0	0
Derivative Instruments Not Designated as Hedging Instruments, Asset, at Fair Value	0	0
Interest Rate Cap | Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative Instruments in Hedges, Assets, at Fair Value	0	40
Derivative Instruments Not Designated as Hedging Instruments, Asset, at Fair Value	98	330
Interest Rate Cap | Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 3	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Derivative Instruments in Hedges, Assets, at Fair Value	0	0
Derivative Instruments Not Designated as Hedging Instruments, Asset, at Fair Value	$0	$0

Fair_Value_Measurements_Summar

Fair Value Measurements - Summary of Fair Value Measurements, Nonrecurring (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Impaired Financing Receivable, Recorded Investment	$228,736	'
Other Real Estate	47,606	'
Fair Value, Inputs, Level 1	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Loans Held-for-sale, Fair Value Disclosure	0	0
Fair Value, Inputs, Level 2	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Loans Held-for-sale, Fair Value Disclosure	30,899	57,414
Fair Value, Inputs, Level 3	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Loans Held-for-sale, Fair Value Disclosure	0	0
Fair Value, Measurements, Nonrecurring	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Loans Held-for-sale, Fair Value Disclosure	30,899	57,414
Impaired Financing Receivable, Recorded Investment	228,736	290,085
Other Real Estate	47,606	51,913
Assets, Fair Value Disclosure, Nonrecurring	307,241	399,412
Fair Value, Measurements, Nonrecurring | Fair Value, Inputs, Level 1	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Loans Held-for-sale, Fair Value Disclosure	0	0
Impaired Financing Receivable, Recorded Investment	0	0
Other Real Estate	0	0
Assets, Fair Value Disclosure, Nonrecurring	0	0
Fair Value, Measurements, Nonrecurring | Fair Value, Inputs, Level 2	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Loans Held-for-sale, Fair Value Disclosure	30,899	57,414
Impaired Financing Receivable, Recorded Investment	0	0
Other Real Estate	0	0
Assets, Fair Value Disclosure, Nonrecurring	30,899	57,414
Fair Value, Measurements, Nonrecurring | Fair Value, Inputs, Level 3	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Loans Held-for-sale, Fair Value Disclosure	0	0
Impaired Financing Receivable, Recorded Investment	228,736	290,085
Other Real Estate	47,606	51,913
Assets, Fair Value Disclosure, Nonrecurring	$276,342	$341,998

Fair_Value_Measurements_Summar1

Fair Value Measurements - Summary of Fair Value, Assets and Liabilities Measured on Nonrecurring Basis, Valuation Techniques (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]	'
Impaired Financing Receivable, Recorded Investment	228,736
Other Real Estate	47,606
Appraisal Valuation | Impaired Financing Receivable, Recorded Investment Member	'
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]	'
Fair Value Measurements, Valuation Techniques	'Appraised value
Appraisal Valuation | Other Real Estate Owned	'
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]	'
Fair Value Measurements, Valuation Techniques	'Appraised value
Minimum | Appraisal Valuation | Impaired Financing Receivable, Recorded Investment Member	'
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]	'
Fair Value Inputs, Comparability Adjustments	0.00%
Minimum | Appraisal Valuation | Other Real Estate Owned	'
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]	'
Fair Value Inputs, Comparability Adjustments	0.00%
Maximum | Appraisal Valuation | Impaired Financing Receivable, Recorded Investment Member	'
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]	'
Fair Value Inputs, Comparability Adjustments	20.00%
Maximum | Appraisal Valuation | Other Real Estate Owned	'
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]	'
Fair Value Inputs, Comparability Adjustments	20.00%

Fair_Value_Measurements_Summar2

Fair Value Measurements - Summary of Fair Value, Balance Sheet Grouping (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
In Thousands, unless otherwise specified
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'
Investment securities available-for-sale, at fair value	$270,417	$341,539	'
Held-to-maturity Securities, Fair Value	236,507	118,235	'
Accrued interest receivable	12,955	11,363	'
FDIC indemnification asset	16,886	53,519	91,851
Bank Owned Life Insurance	78,439	70,756	'
Derivative Asset	3,788	2,044	'
Time deposits	1,082,799	1,159,615	'
Short-term Debt	125,592	32,382	'
Long-term debt	101,509	88,173	'
Estimate of Fair Value Measurement	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'
Cash and Cash Equivalents, Fair Value Disclosure	108,390	234,071	'
Investment securities available-for-sale, at fair value	270,417	341,539	'
Held-to-maturity Securities, Fair Value	236,507	118,235	'
Investment in Federal Home Loan Bank Stock, Fair Value Disclosure	10,720	7,604	'
Loans Held-for-sale, Fair Value Disclosure	30,899	57,414	'
Loans Receivable, Fair Value Disclosure	2,266,455	1,976,745	'
Accrued interest receivable	12,955	11,363	'
FDIC indemnification asset	16,886	53,519	'
Bank Owned Life Insurance	78,439	70,756	'
Demand deposits and savings	1,623,931	1,496,694	'
Time deposits	1,087,333	1,170,560	'
Short-term Debt	126,126	32,382	'
Long-term debt	97,983	83,292	'
Interest Payable	1,434	2,158	'
Derivative Liability	522	1,002	'
Reported Value Measurement	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'
Cash and Cash Equivalents, Fair Value Disclosure	108,390	234,071	'
Investment securities available-for-sale, at fair value	270,417	341,539	'
Held-to-maturity Securities, Fair Value	247,378	114,805	'
Investment in Federal Home Loan Bank Stock, Fair Value Disclosure	10,720	7,604	'
Loans Held-for-sale, Fair Value Disclosure	30,899	57,414	'
Loans Receivable, Fair Value Disclosure	2,243,642	1,994,966	'
Accrued interest receivable	12,955	11,363	'
FDIC indemnification asset	16,886	53,519	'
Bank Owned Life Insurance	78,439	70,756	'
Demand deposits and savings	1,623,931	1,496,694	'
Time deposits	1,082,799	1,159,615	'
Short-term Debt	125,592	32,382	'
Long-term debt	101,509	88,173	'
Interest Payable	1,434	2,158	'
Derivative Liability	522	1,002	'
Fair Value, Inputs, Level 1	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'
Cash and Cash Equivalents, Fair Value Disclosure	108,390	234,071	'
Investment securities available-for-sale, at fair value	0	0	'
Held-to-maturity Securities, Fair Value	0	0	'
Investment in Federal Home Loan Bank Stock, Fair Value Disclosure	0	0	'
Loans Held-for-sale, Fair Value Disclosure	0	0	'
Loans Receivable, Fair Value Disclosure	0	0	'
Accrued interest receivable	0	0	'
FDIC indemnification asset	0	0	'
Bank Owned Life Insurance	0	0	'
Demand deposits and savings	0	0	'
Time deposits	0	0	'
Short-term Debt	0	0	'
Long-term debt	0	0	'
Interest Payable	0	0	'
Derivative Liability	0	0	'
Fair Value, Inputs, Level 2	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'
Cash and Cash Equivalents, Fair Value Disclosure	0	0	'
Investment securities available-for-sale, at fair value	270,417	341,539	'
Held-to-maturity Securities, Fair Value	236,507	118,235	'
Investment in Federal Home Loan Bank Stock, Fair Value Disclosure	10,720	7,604	'
Loans Held-for-sale, Fair Value Disclosure	30,899	57,414	'
Loans Receivable, Fair Value Disclosure	2,037,719	1,686,660	'
Accrued interest receivable	12,955	11,363	'
FDIC indemnification asset	0	0	'
Bank Owned Life Insurance	78,439	70,756	'
Demand deposits and savings	1,623,931	1,496,694	'
Time deposits	1,087,333	1,170,560	'
Short-term Debt	126,126	32,382	'
Long-term debt	97,983	83,292	'
Interest Payable	1,434	2,158	'
Derivative Liability	522	1,002	'
Fair Value, Inputs, Level 3	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'
Cash and Cash Equivalents, Fair Value Disclosure	0	0	'
Investment securities available-for-sale, at fair value	0	0	'
Held-to-maturity Securities, Fair Value	0	0	'
Investment in Federal Home Loan Bank Stock, Fair Value Disclosure	0	0	'
Loans Held-for-sale, Fair Value Disclosure	0	0	'
Loans Receivable, Fair Value Disclosure	228,736	290,085	'
Accrued interest receivable	0	0	'
FDIC indemnification asset	16,886	53,519	'
Bank Owned Life Insurance	0	0	'
Demand deposits and savings	0	0	'
Time deposits	0	0	'
Short-term Debt	0	0	'
Long-term debt	0	0	'
Interest Payable	0	0	'
Derivative Liability	0	0	'
Interest Rate Swap | Designated as Hedging Instrument | Estimate of Fair Value Measurement	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'
Derivative Asset	2,744	'	'
Interest Rate Swap | Designated as Hedging Instrument | Reported Value Measurement	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'
Derivative Asset	2,744	'	'
Interest Rate Swap | Not Designated as Hedging Instrument | Estimate of Fair Value Measurement	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'
Derivative Asset	424	672	'
Interest Rate Swap | Not Designated as Hedging Instrument | Reported Value Measurement	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'
Derivative Asset	424	672	'
Interest Rate Swap | Fair Value, Inputs, Level 1 | Designated as Hedging Instrument	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'
Derivative Asset	0	'	'
Interest Rate Swap | Fair Value, Inputs, Level 1 | Not Designated as Hedging Instrument	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'
Derivative Asset	0	0	'
Interest Rate Swap | Fair Value, Inputs, Level 2 | Designated as Hedging Instrument	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'
Derivative Asset	2,744	'	'
Interest Rate Swap | Fair Value, Inputs, Level 2 | Not Designated as Hedging Instrument	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'
Derivative Asset	424	672	'
Interest Rate Swap | Fair Value, Inputs, Level 3 | Designated as Hedging Instrument	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'
Derivative Asset	0	'	'
Interest Rate Swap | Fair Value, Inputs, Level 3 | Not Designated as Hedging Instrument	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'
Derivative Asset	0	0	'
Interest Rate Cap | Designated as Hedging Instrument | Estimate of Fair Value Measurement	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'
Derivative Asset	0	40	'
Interest Rate Cap | Designated as Hedging Instrument | Reported Value Measurement	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'
Derivative Asset	0	40	'
Interest Rate Cap | Not Designated as Hedging Instrument | Estimate of Fair Value Measurement	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'
Derivative Asset	98	330	'
Interest Rate Cap | Not Designated as Hedging Instrument | Reported Value Measurement	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'
Derivative Asset	98	330	'
Interest Rate Cap | Fair Value, Inputs, Level 1 | Designated as Hedging Instrument	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'
Derivative Asset	0	0	'
Interest Rate Cap | Fair Value, Inputs, Level 1 | Not Designated as Hedging Instrument	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'
Derivative Asset	0	0	'
Interest Rate Cap | Fair Value, Inputs, Level 2 | Designated as Hedging Instrument	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'
Derivative Asset	0	40	'
Interest Rate Cap | Fair Value, Inputs, Level 2 | Not Designated as Hedging Instrument	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'
Derivative Asset	98	330	'
Interest Rate Cap | Fair Value, Inputs, Level 3 | Designated as Hedging Instrument	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'
Derivative Asset	0	0	'
Interest Rate Cap | Fair Value, Inputs, Level 3 | Not Designated as Hedging Instrument	'	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'	'
Derivative Asset	$0	$0	'

Regulatory_Capital_Schedule_of

Regulatory Capital - Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Bank of North Carolina	'	'
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]	'	'
Capital	$313,624	$293,244
Capital to Risk Weighted Assets	12.66%	13.91%
Capital Required for Capital Adequacy	198,187	168,705
Capital Required for Capital Adequacy to Risk Weighted Assets	8.00%	8.00%
Capital Required to be Well Capitalized	247,734	210,882
Capital Required to be Well Capitalized to Risk Weighted Assets	10.00%	10.00%
Tier One Risk Based Capital	282,634	269,192
Tier One Risk Based Capital to Risk Weighted Assets	11.41%	12.77%
Tier One Risk Based Capital Required for Capital Adequacy	99,094	84,353
Tier One Risk Based Capital Required for Capital Adequacy to Risk Weighted Assets	4.00%	4.00%
Tier One Risk Based Capital Required to be Well Capitalized	148,640	126,529
Tier One Risk Based Capital Required to be Well Capitalized to Risk Weighted Assets	6.00%	6.00%
Tier One Leverage Capital	282,634	269,192
Tier One Leverage Capital to Average Assets	8.96%	9.71%
Tier One Leverage Capital Required for Capital Adequacy	126,118	110,900
Tier One Leverage Capital Required for Capital Adequacy to Average Assets	4.00%	4.00%
Tier One Leverage Capital Required to be Well Capitalized	$157,647	$138,625
Tier One Leverage Capital Required to be Well Capitalized to Average Assets	5.00%	5.00%
BNC Bancorp	'	'
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]	'	'
Capital to Risk Weighted Assets	11.57%	13.80%
Tier One Risk Based Capital to Risk Weighted Assets	10.33%	12.67%
Tier One Leverage Capital to Average Assets	8.12%	9.65%

Income_Taxes_Schedule_of_Compo

Income Taxes - Schedule of Components of Income Tax Expense (Benefit) (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Current Income Tax Expense (Benefit), Continuing Operations [Abstract]	'	'	'
Federal	($314)	($140)	$581
State	554	350	742
Total current income tax provision	240	210	1,323
Deferred Income Tax Expense (Benefit), Continuing Operations [Abstract]	'	'	'
Federal	2,382	-2,244	-2,821
State	1,423	334	-285
Total deferred income tax provision (benefit)	3,805	-1,910	-3,106
Total income tax provision (benefit)	$4,045	($1,700)	($1,783)

Income_Taxes_Schedule_of_Effec

Income Taxes - Schedule of Effective Income Tax Rate Reconciliation (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Effective Income Tax Rate Reconciliation, Amount [Abstract]	'	'	'
Tax at statutory federal tax rate	$7,239	$2,976	$1,750
State income tax, net of federal benefit	1,304	451	301
Tax exempt interest income	-4,008	-3,241	-3,306
Income from life insurance	-789	-601	-546
Gain on acquisition	0	-1,690	0
Other	299	405	18
Total income tax provision (benefit)	$4,045	($1,700)	($1,783)

Income_Taxes_Schedule_of_Defer

Income Taxes - Schedule of Deferred Tax Assets and Liabilities (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Deferred Tax Assets, Gross [Abstract]	'	'
Allowance for loan losses	$10,660	$10,841
Net operating loss carryforwards	10,593	6,975
Deferred compensation	2,203	2,112
Unrealized loss on interest rate cap	0	3,662
Other real estate owned writedowns	3,536	3,481
AMT credit carryforward	3,488	3,323
Interest on nonaccrual loans	110	113
Stock-based compensation	546	522
Fair value adjustments from acquisitions	6,273	8,672
Other	1,089	922
Total deferred income tax assets	38,498	40,623
Deferred Tax Liabilities, Gross [Abstract]	'	'
Premises and equipment	2,978	1,932
Leasing activities	702	486
Unrealized gains on investment securities and derivatives	2,235	7,373
Loan costs	979	0
Core deposit intangibles	2,306	1,755
FDIC acquisitions	4,424	7,494
Other	1,554	1,934
Total deferred income tax liabilities	15,178	20,974
Less valuation allowance	360	0
Net deferred income tax asset	$22,960	$19,649

Income_Taxes_Additional_Inform

Income Taxes - Additional Information (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2013
			Tax Year 2014	Tax Year 2015
			NORTH CAROLINA	NORTH CAROLINA
Income Tax [Line Items]	'	'	'	'
Deferred Tax Asset, Valuation Allowance	$360,000	$0	'	'
State Income Tax Rate	'	'	6.00%	5.00%
Operating Loss Carryforwards	$28,900,000	'	'	'

Commitments_and_Contingencies_1

Commitments and Contingencies - Schedule of Fair Value Off Balance Sheet Risks (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Commitments and Contingencies Disclosure [Abstract]	'	'
Commitments under unfunded loans and lines of credit	$377,021	$272,308
Letters of credit	7,926	12,172
Unused credit card lines	4,120	4,536
Unfunded commitments for unconsolidated investments	$7,450	$4,000

Commitments_and_Contingencies_2

Commitments and Contingencies - Additional Information (Details) (USD $)	Dec. 31, 2013
In Millions, unless otherwise specified
Commitments and Contingencies Disclosure [Abstract]	'
Commitment to Purchase Limited Partnership Interest	$8.80
Unfunded Commitment to Purchase Limited Partnership Interest	$7.50

Employee_Benefits_Disclosure_o

Employee Benefits - Disclosure of Share-Based Compensation Arrangements by Share-Based Payment Award (Details) (Employee Stock Option, USD $)	12 Months Ended
In Thousands, except Share data, unless otherwise specified	Dec. 31, 2013
Employee Stock Option	'
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]	'
Outstanding, beginning of period (in shares)	436,939
Exercised (in shares)	0
Forfeited or expired (in shares)	24,602
Outstanding, end of period (in shares)	412,337
Exercisable at December 31, 2013 (in shares)	409,513
Share options expected to vest (in shares)	2,824
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]	'
Outstanding, beginning of period (in shares)	$11.32
Exercised (in shares)	$0
Forfeited or expired (in shares)	$11
Outstanding, end of period (in shares)	$11.34
Exercisable at December 31, 2013 (in shares)	$11.35
Share options expected to vest (in shares)	$9.71
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]	'
Weighted average remaining contractual term (dollars per shares)	'3 years 1 month 20 days
Exercisable at December 31, 2013 (dollars per share)	'3 years 1 month 13 days
Share options expected to vest (dollars per share)	'6 years 3 months 21 days
Aggregate intrinsic value	$2,392
Exercisable at December 31, 2013	2,371
Share options expected to vest	$21

Employee_Benefits_Schedule_of_

Employee Benefits - Schedule of Nonvested Restricted Stock Units Activity (Details) (Restricted Stock, USD $)	12 Months Ended
	Dec. 31, 2013
Restricted Stock	'
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]	'
Restricted stock nonvested, beginning of period (in shares)	153,723
Granted (in shares)	250,675
Vested (in shares)	-100,002
Forfeited (in shares)	-1,000
Restricted stock nonvested, end of period (in shares)	303,396
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]	'
Restricted stock nonvested, beginning of period (dollars per share)	$7.73
Granted (dollars per share)	$10.29
Vested (dollars per share)	$8.55
Forfeited (dollars per share)	$7.95
Restricted stock nonvested, end of period (dollars per share)	$9.58

Employee_Benefits_Additional_I

Employee Benefits - Additional Information (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
Option exercised in period, intrinsic value	$0	$85,000	$1,000
Options, vested in period, fair value	14,000	326,000	14,000
Exercise of stock options, cash received	0	300,000	100,000
Exercise of stock options, tax benefit	0	17,000	0
Fair value of restricted stock, vested in period	900,000	300,000	100,000
Minimum employee age, defined contribution plan	'20.5	'	'
Employer matching contribution percent	50.00%	'	'
Employer matching contribution, percent of compensation	6.00%	'	'
Employee contribution, vesting percentage	100.00%	'	'
Employer matching contribution, vesting rate	20.00%	'	'
Defined Contribution Plan, Cost Recognized	900,000	800,000	600,000
Defined Benefit Plan, Benefits Paid	300,000	600,000	700,000
Defined Benefit Plan, Benefit Obligation	6,300,000	6,100,000	'
Deferred Compensation Arrangement with Individual, Compensation Expense	400,000	500,000	500,000
Common Stock, Shares Held in Employee Trust, Shares	339,448	337,673	'
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross	0	0	0
2006 Omnibus Plan	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
Rights issued	376,764	'	'
2013 Omnibus Plan	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
Rights issued	54,750	'	'
Shares available	1,429,325	'	'
KeySource Plan	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
Grants in period, net of forfeitures	284,219	'	'
Employee Stock Option	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
Allocated Share-based Compensation Expense	10,000	69,000	14,000
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized	7,000	'	'
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition	'10 months 9 days	'	'
Employee Stock Option | KeySource Plan	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
Shares available	35,607	'	'
Allocated Share-based Compensation Expense	'	55,000	'
Restricted Stock	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
Allocated Share-based Compensation Expense	1,200,000	500,000	400,000
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized	$2,100,000	'	'
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition	'1 year 5 months 15 days	'	'

Parent_Company_Financial_Data_1

Parent Company Financial Data - Condensed Balance Sheets of Parent Company Only (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Condensed Financial Statements, Captions [Line Items]	'	'	'	'
Cash and due from banks	$35,474	$42,989	'	'
Other assets	51,152	47,030	'	'
Long-term debt	101,509	88,173	'	'
Series A, Fixed Rate Cumulative Perpetual Preferred stock	0	30,717	'	'
Series B, Mandatorily Convertible Non-Voting Preferred stock	0	17,161	'	'
Common stock, no par value	168,616	157,541	'	'
Common stock, non-voting, no par value	57,849	40,688	'	'
Retained earnings	41,559	30,708	'	'
Stock in directors rabbi trust	-3,143	-3,090	'	'
Directors deferred fees obligation	3,143	3,090	'	'
Accumulated other comprehensive income	3,306	5,429	1,010	'
Total shareholders' equity	271,330	282,244	163,855	152,224
Organization	'	'	'	'
	BASIS OF PRESENTATION
	Organization
	BNC Bancorp (the “Parent Company”) is a bank holding company for Bank of North Carolina (“BNC”), a wholly owned subsidiary, headquartered in High Point, North Carolina. The Parent Company also maintains four wholly-owned special-purpose subsidiary trusts that issue trust preferred securities. The information in the consolidated financial statements relates primarily to BNC. BNC is a full service commercial bank providing commercial banking services tailored to the particular banking needs of the communities it serves in North and South Carolina. BNC’s primary source of revenue is derived from loans to customers, who are predominantly individuals and small to medium size businesses in BNC’s market areas.
	The Parent Company is subject to the rules and regulations of the Federal Reserve Bank. BNC is operating under the Banking Laws of North Carolina, and is subject to the rules and regulations of the North Carolina Commissioner of Banks and the Federal Deposit Insurance Corporation (“FDIC”). Accordingly, the Parent Company and BNC are examined periodically by those regulatory authorities.
	Basis of Presentation
	The accompanying consolidated financial statements include the accounts and transactions of the Parent Company and BNC, collectively referred to herein as the “Company”. All significant intercompany transactions and balances have been eliminated in consolidation.
	Use of Estimates
	The preparation of consolidated financial statements in conformity with accounting principles generally accepted in the United States of America (“GAAP”) requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. On an ongoing basis, the Company evaluates its estimates, including those relating to the allowance for loan losses, determination of fair value of acquired assets and assumed liabilities, and valuation of goodwill and intangible assets.
	Reclassifications
	Certain amounts in the 2012 consolidated financial statements have been reclassified to conform to the 2013 presentation. The reclassifications had no effect on net income, net income available to common shareholders or shareholders' equity as previously reported.
	Business Combinations
	The Company accounts for its business combinations using the acquisition method of accounting. This method requires the use of fair values in determining the carrying values of the purchased assets and assumed liabilities, which are recorded at fair value at acquisition date, and identifiable intangible assets are recorded at fair value. Costs directly related to the business combinations are recorded as expenses as they are incurred. Fair values are subject to refinement for up to one year after the closing date of an acquisition as information relative to closing date fair values become available.
	Cash and Cash Equivalents
	For the purpose of presentation in the statements of cash flows, cash and cash equivalents include cash and due from banks and interest-earning deposits in other banks.
	Federal regulations require financial institutions to set aside a specified amount as a reserve against transaction accounts and time deposits. At December 31, 2013 and 2012, the Company’s reserve requirement was $8.4 million and $24.8 million, respectively.
	Investment Securities
	Investment securities are classified into one of three categories on the date of purchase and accounted for as follows: (1) debt securities that the Company has the positive intent and the ability to hold to maturity are classified as held-to-maturity and reported at amortized cost; (2) debt and equity securities that are bought and held principally for the purpose of selling them in the near term are classified as trading securities and reported at fair value, with unrealized gains and losses included in earnings; and (3) debt and equity securities not classified as either held-to-maturity securities or trading securities are classified as available-for-sale securities and reported at fair value, with unrealized gains and losses, net of taxes, reported as other comprehensive income.
	Premiums are amortized and discounts accreted using the interest method over the remaining terms of the related securities. Dividend and interest income are recognized when earned. Sales of investment securities are recorded at trade date, with realized gains and losses on sales determined using the specific identification method and included in non-interest income.
	Transfers of investment securities into the held-to-maturity category from the available-for-sale category are made at fair value at the date of transfer. The unrealized holding gain or loss at the date of transfer is retained in accumulated other comprehensive income and in the carrying value of the held-to-maturity securities. Such amounts are amortized over the remaining life of the security.
	Our investment securities portfolio includes residential mortgage-backed securities and collateralized mortgage obligations. As the underlying collateral of each of these securities is comprised of a large number of similar residential mortgage loans for which prepayments are probable and the timing and amount of such prepayments can be reasonably estimated, we consider estimates of future principal prepayments of these underlying residential mortgage loans in the calculation of the constant effective yield used to apply the interest method for income recognition.
	The Company evaluates each investment security in a loss position for other-than-temporary impairment (“OTTI”). The Company considers such factors as the length of time and the extent to which the market value has been below amortized cost, long term expectations and recent experience regarding principal and interest payments, intent to sell and whether it is more likely than not that the Company would be required to sell those securities before the anticipated recovery of the amortized cost basis. The credit component of an OTTI loss is recognized in earnings and the non-credit component is recognized in accumulated other comprehensive income in situations where the Company does not intend to sell the security and it is more-likely-than-not that the Company will not be required to sell the security prior to recovery.
	Federal Home Loan Bank Stock
	As a member of the Federal Home Loan Bank of Atlanta (the "FHLB"), the Company is required to maintain an investment in the stock of the FHLB based upon the amount of outstanding FHLB borrowings. This stock does not have a readily determinable fair value and is carried at cost.
	Loans and Leases
	Originated Loans and Leases
	Loans that management has the intent and ability to hold for the foreseeable future or until maturity are reported at their outstanding principal balances, adjusted for any charge-offs, unearned discounts, and unamortized fees and costs on originated loans. Interest income on loans is accrued and credited to income based upon the principal amount outstanding. The net amount of nonrefundable loan origination fees and certain direct costs associated with the lending process are deferred and amortized to interest income over the contractual lives of the loans using methods that approximate the interest method.
	The Company classifies all loans and leases past due when the payment of principal and/or interest based upon contractual terms is greater than 30 days delinquent. When commercial loans are placed on nonaccrual status as described below, a charge-off is recorded, as applicable, to decrease the carrying value of such loans to the estimated fair value of the collateral securing the loan. Consumer loans are placed on nonaccrual status at a specified delinquency date consistent with regulatory guidelines. As such, consumer loans are subject to collateral valuation and charge-off, as applicable, when they are moved to nonaccrual status. The accrual of interest income for commercial loans is discontinued when there is a clear indication that the borrower’s cash flow may not be sufficient to meet payments as they become due, while the accrual of interest income for consumer loans is discontinued when loans reach specific delinquency levels.
	Acquired Loans
	Acquired loans are recorded at their fair value at the acquisition date. Credit discounts are included in the determination of fair value; therefore, an allowance for loan losses is not recorded at the acquisition date. Loans acquired in FDIC-assisted transactions and covered under loss-share agreements are referred to as “covered loans.”
	Acquired loans are evaluated upon acquisition and classified as either purchased impaired or purchased non-impaired. Purchased impaired loans reflect credit deterioration since origination such that it is probable at acquisition that the Company will be unable to collect all contractually required payments. For purchased impaired loans, expected cash flows at the acquisition date in excess of the fair value of loans are recorded as interest income over the life of the loans using a level yield method if the timing and amount of the future cash flows is reasonably estimable. Subsequent to the acquisition date, increases in cash flows over those expected at the acquisition date are recognized prospectively as interest income. Decreases in expected cash flows after the acquisition date are recognized immediately through the provision for loan losses. For purchased non-impaired loans, the difference between the fair value and unpaid principal balance of the loan at the acquisition date is amortized or accreted to interest income over the economic life of the loans using a method that approximates the interest method.
	Covered loans acquired will be reimbursed for a substantial portion of any future losses on them under the terms of the FDIC loss-share agreements. The covered loans are reported in loans exclusive of the expected reimbursement from the FDIC. Covered loans are initially recorded at fair value at the acquisition date. The covered loans are and will be subject to the Company’s internal and external credit review and monitoring. Prospective losses incurred on covered loans are eligible for partial reimbursement by the FDIC. Subsequent decreases in the amount expected to be collected result in a provision for loan losses, an increase in the allowance for loan losses, and a proportional increase to the FDIC indemnification asset for the estimated amount to be reimbursed. Subsequent increases in the amount expected to be collected result in the reversal of any previously-recorded provision for loan losses and related allowance for loan losses and decreases to the FDIC indemnification asset, or accretion of certain fair value amounts into interest income in future periods if no provision for loan losses had been recorded.
	Loans Held for Sale
	The Company originates certain single family, residential first mortgage loans for sale on a presold basis and these loans are classified as loans held for sale. Loans held for sale are carried at the lower of cost or estimated fair value in the aggregate as determined by outstanding commitments from investors. Upon closing, these loans, together with their servicing rights, are sold to other financial institutions under prearranged terms on a best-efforts basis. Gains or losses on loan sales are recognized at the time of sale and are determined by the difference between net sales proceeds and the principal balance of the loans sold, adjusted for net deferred loan fees or costs. Loan origination and commitment fees, net of certain direct loan origination costs, are deferred as an adjustment to the carrying value of the loan until it is sold. The commitments to sell loans and the commitments to originate loans held for sale at a set interest rate, if originated, are considered derivatives under GAAP. The impact of the estimated fair value adjustment was not significant to the consolidated financial statements.
	Nonperforming Loans
	The Company considers a loan impaired, based on current information and events, if it is probable that the Company will be unable to collect the scheduled payments of principal or interest when due according to the contractual terms of the loan agreement. All impaired loans are measured based on the present value of the expected future cash flows discounted at the loan's effective interest rate, the loan's observable market price, or at the fair value of the collateral if the loan is collateral dependent.
	The Company uses several factors in determining if a loan is impaired. Internal asset classification procedures include a thorough review of significant loans and lending relationships and include the accumulation of related data. This data includes loan payment status and the borrowers' financial data, cash flows, operating income or loss, and other factors. These discounted cash flow analyses incorporate adjustments to future cash flows that reflect management’s best estimate based on a combination of historical experience and management judgment.
	Loans are generally classified as nonaccrual if they are past due as to maturity or payment of principal or interest for a period of more than ninety (90) days, unless such loans are well-secured and in the process of collection. If a loan or a portion of a loan is classified as doubtful or is partially charged off, the loan is generally classified as nonaccrual. Loans that are on a current payment status or past due less than ninety (90) days may also be classified as nonaccrual if repayment in full of principal and/or interest is in doubt.
	Loans may be returned to accrual status when all principal and interest amounts contractually due (including arrearages) are reasonably assured of repayment within an acceptable period of time and there is a sustained period of repayment performance (generally, a minimum of six months) by the borrower in accordance with the contractual terms of interest and principal.
	While a loan is classified as nonaccrual and the future collectability of the recorded loan balance is doubtful, collections of interest and principal are generally applied as a reduction to principal outstanding. When future collection of the recorded loan balance is expected, interest income may be recognized on a cash basis. In the case where a nonaccrual loan had been partially charged off, recognition of interest on a cash basis is limited to that which would have been recognized on the recorded loan balance at the contractual interest rate. Receipts in excess of that amount are recorded as recoveries to the allowance for loan losses until prior charge-offs have been fully recovered.
	Restructurings
	Modifications to a borrower’s debt agreement are considered troubled debt restructurings (“TDRs”) if a concession is granted for economic or legal reasons related to a borrower’s financial difficulties that otherwise would not be considered. TDRs are undertaken in order to improve the likelihood of recovery on the loan and may take the form of modifications made with the stated interest rate lower than the current market rate for new debt with similar risk, modifications to the terms and conditions of the loan that fall outside of normal underwriting policies and procedures, or a combination of these modifications. Modifications of covered and other acquired loans that are part of a pool accounted for as a single asset are not considered TDRs. TDRs can involve loans remaining on nonaccrual, moving to nonaccrual, or continuing on accruing status, depending on the individual facts and circumstances of the borrower.
	Allowance for Loan Losses
	The allowance for loan losses is established through a provision for loan losses charged to expense. Loans are charged-off against the allowance when management believes that the collectability of principal is unlikely. Recoveries of amounts previously charged-off are credited to the allowance. The allowance is an amount that management believes will be adequate to absorb probable losses on existing loans based on evaluations of the collectibility of loans. The evaluations take into consideration such factors as changes in the nature and volume of the loan portfolio, overall portfolio quality, historical loan losses, review of specific loans for impairment, and current economic conditions and trends that may affect the borrowers' ability to pay. Accrual of interest is discontinued on loans when management believes, after considering economic and business conditions and collection efforts and the value of the underlying collateral, that the borrowers' financial condition is such that collection is doubtful.
	In addition, various regulatory agencies, as an integral part of their examination process, periodically review BNC’s allowance for loan losses. Such agencies may require BNC to recognize adjustments to the allowance based on their judgments of information available to them at the time of their examination.
	Accounting standards require the presentation of certain disclosure information at the portfolio segment level, which represents the level at which an entity develops and documents a systematic methodology to determine its allowance for loan losses. The Company concluded that its loan and lease portfolio comprises two portfolio segments; originated loans (which include purchased non-credit impaired loans) and purchased credit impaired loans. Originated loans include both commercial loans, which include commercial real estate, commercial construction, commercial and industrial and leases, and retail loans, which include residential construction, residential mortgage and consumer and other loans. The following provides a description of the Company’s accounting policies and methodologies related to each of its portfolio segments:
	Originated Loans
	All commercial and retail loans that are originated by the Company are assigned risk grades based on an assessment of conditions that affect the borrower’s ability to meet contractual obligations under the loan agreement. This process includes reviewing borrowers’ financial information, historical payment experience, credit documentation, public information, and other information specific to each borrower. Loans with outstanding balance of $1 million or more, as well as all other loans included in such relationships, are reviewed on an annual basis. Loans with total committed exposure of $250,000 or more that are risk graded as Special Mention or worse, as well as credit relationships with total credit exposure of $500,000 or more that are risk graded Special Mention or worse, are reviewed on a quarterly basis. All other loans are reviewed at any point management becomes aware of information affecting the borrower’s ability to fulfill their obligations. The Company calculates a specific reserve for each loan that has been deemed impaired, which include commercial loans 90 days or more past due, commercial nonaccrual loans above $250,000, and commercial and retail restructurings above $250,000. The amount of the reserve is based on the present value of expected cash flows discounted at the loan’s effective interest rate, and/or the value of collateral. If foreclosure is probable or the loan is collateral dependent, impairment is measured using the fair value of the loan’s collateral, less estimated costs to sell.
	For acquired loans that are not deemed credit impaired at acquisition, credit discounts representing the principal losses expected over the life of the loan are a component of the initial fair value. Subsequent to the purchase date, the methods utilized to estimate the required allowance for loan losses for these loans is similar to originated loans, however, the Company records a provision for loan losses only when the required allowance, net of any expected reimbursement under any loss-share agreements, exceeds any remaining credit discounts. The remaining differences between the purchase price and the unpaid principal balance at the date of acquisition are recorded in interest income over the economic life of the loans.
	The Company also maintains reserves for collective impairment that reflect an estimate of losses related to non-impaired loans as of the balance sheet date, as well as impaired loans below the parameters described above for specific reserve. Embedded loss estimates are based on estimated migration rates, which are estimated based on historical experience, and current risk mix as indicated by the risk grading process described above. Embedded loss estimates may be adjusted to reflect current economic conditions and current portfolio trends including credit quality, concentrations, aging of the portfolio, and significant policy and underwriting changes.
	Purchased Credit Impaired Loans
	The allowance for loan and lease losses related to purchased credit impaired loans is based on an analysis that is performed each period to estimate the expected cash flows for each of the loan pools. To the extent that the expected cash flows of a loan pool have decreased since the acquisition date, the Company establishes an allowance for loan losses.
	Other Real Estate Owned
	Other real estate owned (“OREO”) acquired through, or in lieu of, loan foreclosure is held for sale and is initially recorded at estimated fair value less cost of disposal at the date of foreclosure, establishing a new cost basis. When property is acquired, the excess, if any, of the loan balance over estimated fair value is charged to the allowance for loan losses. Subsequent to foreclosure, valuations are periodically performed by management and the assets are carried at the lower of carrying amount or fair value less cost to sell. Revenue and expenses from operations and changes in the valuation allowance are included in loan, foreclosure and other real estate owned expenses as a component of non-interest expense.
	Certain OREO properties are subject to loss-sharing agreements with the FDIC and are labeled “covered” on the consolidated balance sheets.
	FDIC Indemnification Asset
	The FDIC indemnification asset is measured separately from the related covered assets as it is not contractually embedded in the assets and is not transferable with the assets should the Company choose to dispose of them. At acquisition date of an FDIC-assisted transaction, fair value is estimated using projected cash flows related to the loss-share agreements based on the expected reimbursements for losses and the applicable loss-sharing percentages and the estimated true-up payment at the expiration of the loss-share agreements, if applicable. These cash flows were discounted to reflect the estimated timing of the receipt of the loss-share reimbursement from the FDIC and the true-up payment to the FDIC. Cash flow projections resulting from the loss-share agreements are reviewed and updated prospectively as loss estimates related to both covered loans and covered other real estate owned change, including the existence of and amount of any required true-up payment owed to the FDIC.
	Premises and Equipment
	Premises and equipment are stated at cost less accumulated depreciation and amortization. Land is carried at cost. Depreciation and amortization are computed using the straight-line method over the estimated useful lives of the respective assets, which are 40 years for buildings and 3 to 10 years for furniture, fixtures and equipment. Leasehold improvements are amortized over the terms of the respective leases or the estimated useful lives of the improvements, whichever is shorter. Repairs and maintenance costs are charged to operations as incurred.
	Bank-Owned Life Insurance
	The Company has purchased life insurance policies on certain current and past key employees and directors where the insurance policy benefits and ownership are retained by the employer. These policies are recorded at their cash surrender value. Income from these policies and changes in the net cash surrender value are recorded in non-interest income as earnings on bank-owned life insurance. The cash value accumulation is permanently tax deferred if the policy is held to the insured person’s death and certain other conditions are met.
	Goodwill and Other Intangible Assets
	Goodwill represents the excess of the purchase price over the fair value of net assets acquired in a business combination. Goodwill is not amortized but is evaluated for impairment on an annual basis, or more frequently if an event occurs indicating that goodwill may be impaired. Any impairment of goodwill or other intangibles will be recognized as an expense in the period of impairment. The Company completes the annual goodwill impairment test as of June 30 of each year and the test indicated there was no impairment of goodwill.
	Identifiable intangible assets are acquired assets that lack physical substance but can be distinguished from goodwill because of contractual or legal rights or because the assets are capable of being sold or exchanged either on their own or in combination with a related contract, asset, or liability. The Company’s identifiable intangible assets relate to premiums on purchased core deposits and are being amortized over their estimated useful lives.
Derivatives
The Company applies hedge accounting to certain interest rate derivatives entered into for risk management purposes. To qualify for hedge accounting, a derivative must be highly effective at reducing the risk associated with the exposure being hedged. In addition, key aspects of achieving hedge accounting are documentation of hedging strategy and hedge effectiveness at the hedge inception and substantiating hedge effectiveness on an ongoing basis. A derivative must be highly effective in accomplishing the hedge objective of offsetting changes in the cash flows of the hedged item for the risk being hedged. Any ineffectiveness in the hedge relationship is recognized in earnings. The effective portion of changes in the fair value of derivatives designated in a hedge relationship and that qualify as cash flow hedges is recorded in accumulated other comprehensive income, net of tax, and is subsequently reclassified into earnings in the period that the hedged transaction affects earnings.
The Company assesses, both at the inception of the hedge and on an ongoing basis, whether derivatives used as hedging instruments are highly effective in offsetting the changes in the cash flow of the hedge items. If it is determined that a derivative is not highly effective as a hedge or ceases to be highly effective, the Company will discontinue hedge accounting prospectively.
Earnings Per Share
Basic earnings per common share is computed using the weighted average number of common shares and participating securities outstanding during the reporting period. Diluted earnings per common share is the amount of earnings available to each share of common stock during the reporting period adjusted to include the effect of potentially dilutive common shares. Potentially dilutive common shares are excluded from the computation of dilutive earnings per share in the periods in which the effect would be anti-dilutive.
Income Taxes
Deferred income taxes are recognized for the tax consequences of temporary differences between financial statement carrying amounts and the tax bases of existing assets and liabilities that will result in taxable or deductible amounts in future years. These temporary differences are multiplied by the enacted income tax rate expected to be in effect when the taxes become payable or receivable. The effect on deferred taxes of a change in tax rates is recognized in income in the period that includes the enactment date. Deferred tax assets are reduced, if necessary, by the amount of such benefits that are not expected to be realized based on available evidence.
Operating Segments
The Company’s operations are managed along two operating segments, consisting of banking operations and mortgage origination. While the chief operating decision maker uses financial information related to these segments to analyze business performance and allocate resources, the mortgage origination segment does not meet the quantitative threshold under GAAP to be considered a reportable segment. As such, these operating segments are aggregated into a single reportable operating segment in the Consolidated Financial Statements. No revenues are derived from foreign countries or from external customers that comprise more than 10% of the Company’s revenues.
Stock Compensation Plans
The Company follows the provisions of the authoritative guidance regarding share-based compensation. This guidance values share-based awards at the grant date fair value and recognizes the expense over the requisite service period.
Recently Adopted and Issued Accounting Standards
In January 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2014-04, Receivables (Topic 310): Reclassification of Residential Real Estate Collateralized Consumer Mortgage Loans upon Foreclosure to clarify that an in substance repossession or foreclosure occurs upon either the creditor obtaining legal title to the residential real estate property or the borrower conveying all interest in the residential real estate property to the creditor to satisfy that loan through completion of a deed in lieu of foreclosure or through a similar legal agreement. The amendments are effective for annual periods, and interim reporting periods within those annual periods, beginning after December 15, 2014. The amendments may be adopted using either a modified retrospective transition method or a prospective transition method and early adoption is permitted. The Company does not expect the adoption of this ASU to have a material impact on its consolidated financial statements.
In July 2013, the FASB issued ASU No. 2013-10, Derivatives and Hedging (Topic 815): Inclusion of the Fed Funds Effective Swap Rate (or Overnight Index Swap Rate) as a Benchmark Interest Rate for Hedge Accounting Purposes to provide guidance on the risks that are permitted to be hedged in a fair value or cash flow hedge. Among those risks for financial assets and financial liabilities is the risk of changes in a hedged item’s fair value or a hedged transaction’s cash flows attributable to changes in the designated benchmark interest rate (referred to as interest rate risk). The provisions were effective prospectively for qualifying new or redesignated hedging relationships entered into on or after July 17, 2013. The adoption of this ASU did not have a material impact on the Company's consolidated financial statements.
In July 2013, the FASB issued ASU No. 2013-11, Income Taxes (Topic 740): Presentation of an Unrecognized Tax Benefit When a Net Operating Loss Carryforward, a Similar Tax Loss, or a Tax Credit Carryforward Exists to provide 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 thereby reducing diversity in practice. The amendments are effective for fiscal years, and interim periods within those years, beginning after December 15, 2013. Early adoption is permitted. The amendments are to be applied prospectively to all unrecognized tax benefits that exist at the effective date with retrospective application permitted. The Company does not expect the adoption of this ASU to have a material impact on its consolidated financial statements.
In February 2013, the FASB issued ASU No. 2013-02, Comprehensive Income (Topic 220): Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income. This ASU requires that companies present either in a single note or parenthetically on the face of the financial statements, the effect of significant amounts reclassified from each component of accumulated other comprehensive income based on its source (e.g., the release due to cash flow hedges from interest rate contracts) and the income statement line items affected by the reclassification (e.g., interest income or interest expense). If a component is not required to be reclassified to net income in its entirety, companies would instead cross reference to the related footnote for additional information. This ASU is effective for fiscal and interim reporting periods beginning after December 15, 2012. The adoption of this ASU did not have a material impact on the Company's consolidated financial statements.
In October 2012, the FASB issued ASU No. 2012-06, Business Combinations (Topic 805): Subsequent Accounting for an Indemnification Asset Recognized at the Acquisition Date as a Result of a Government-Assisted Acquisition of a Financial Institution, which addresses diversity in practice regarding the subsequent measurement of an indemnification asset in a government-assisted acquisition of a financial institution that includes a loss-sharing agreement. The amendments are effective for interim and annual reporting periods beginning on or after December 15, 2012 with early adoption permitted. The adoption of this ASU did not have a material impact on the Company’s consolidated financial statements.
In December 2011, the FASB issued ASU 2011-11, Balance Sheet (Topic 210): Disclosures about Offsetting Assets and Liabilities. Under this update, the Company will be required to disclose both gross information and net information about both instruments and transactions eligible for offset in the statement of financial position and transactions subject to an agreement similar to a master netting arrangement. The scope would include derivatives, sale and repurchase agreements and securities borrowing and securities lending arrangements. This disclosure is intended to enable financial statement users to understand the effect of such arrangements on the Company’s financial position. The objective of this update is to support further convergence between U.S. GAAP and International Financial Reporting Standards. In January 2013, the FASB released ASU 2013-01 Balance Sheet (Topic 210): Clarifying the Scope of Disclosures about Offsetting Assets and Liabilities. Under this update, the FASB limited the scope of ASU 2011-11 to items identified in the implementation guidance which include derivatives, sale and repurchase agreements and securities borrowing and securities lending arrangements that are either offset on the balance sheet or subject to an enforceable master netting agreement. Both of these updates are effective for annual reporting periods beginning on or after January 1, 2013. The adoption of this ASU did not have a material impact on the Company’s consolidated financial statements.
Parent Company	'	'	'	'
Condensed Financial Statements, Captions [Line Items]	'	'	'	'
Cash and due from banks	1,392	11,103	'	'
Investment in bank subsidiary	320,941	306,816	'	'
Investment in other subsidiaries	1,113	1,113	'	'
Other assets	622	222	'	'
Total assets	324,068	319,254	'	'
Other liabilities	150	10,837	'	'
Long-term debt	52,588	26,173	'	'
Total liabilities	52,738	37,010	'	'
Series A, Fixed Rate Cumulative Perpetual Preferred stock	0	30,717	'	'
Series B, Mandatorily Convertible Non-Voting Preferred stock	0	17,161	'	'
Common stock, no par value	168,616	157,541	'	'
Common stock, non-voting, no par value	57,849	40,688	'	'
Retained earnings	41,559	30,708	'	'
Stock in directors rabbi trust	-3,143	-3,090	'	'
Directors deferred fees obligation	3,143	3,090	'	'
Accumulated other comprehensive income	3,306	5,429	'	'
Total shareholders' equity	271,330	282,244	'	'
Total liabilities and shareholders' equity	$324,068	$319,254	'	'

Parent_Company_Financial_Data_2

Parent Company Financial Data - Condensed Income Statements of Parent Company Only (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2010
				Parent Company	Parent Company	Parent Company
Condensed Financial Statements, Captions [Line Items]	'	'	'	'	'	'
Dividends from bank subsidiary	'	'	'	$13,760	$3,675	$2,100
Equity in undistributed earnings of bank subsidiary	'	'	'	5,434	8,094	5,427
Other income	'	'	'	625	626	637
Interest expense	30,063	32,891	32,920	1,920	939	968
Other expense	'	'	'	652	1,003	266
Net Income	$17,247	$10,453	$6,930	$17,247	$10,453	$6,930

Parent_Company_Financial_Data_3

Parent Company Financial Data - Condensed Statements of Cash Flows of Parent Company Only (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Operating activities	'	'	'
Net income	$17,247	$10,453	$6,930
Amortization	4,615	2,987	2,309
Net cash provided by operating activities	162,913	39,534	39,671
Financing activities	'	'	'
Redemption of common stock warrant	0	-940	0
Proceeds from exercise of stock options	0	138	52
Common stock issued pursuant to dividend reinvestment plan	-260	-225	-205
Cash dividends paid, net of accretion	-5,853	-4,879	-3,737
Net cash provided by (used in) financing activities	-145,711	-10,629	88,663
Net increase (decrease) in cash and cash equivalents	-125,681	178,242	25,742
Cash and cash equivalents, beginning of period	234,071	55,829	30,087
Cash and cash equivalents, end of period	108,390	234,071	55,829
Parent Company	'	'	'
Operating activities	'	'	'
Net income	17,247	10,453	6,930
Equity in undistributed earnings of bank subsidiary	-5,434	-8,094	-5,427
Amortization	48	11	11
(Increase) decrease in other assets	-472	2	7
Increase (decrease) in other liabilities	-10,687	10,267	-362
Net cash provided by operating activities	702	12,639	1,159
Investing activities	'	'	'
Net cash used in investment in subsidiaries	0	-61,397	0
Financing activities	'	'	'
Proceeds (repayments) on short-term borrowings	0	-6,280	3,025
Proceeds on long-term debt	26,440	2,460	0
Proceeds from issuance of preferred stock	-31,260	68,308	0
Redemption of common stock warrant	0	-940	0
Proceeds from exercise of stock options	0	138	52
Tax benefit from exercise of stock options, net	0	17	0
Common stock issued pursuant to dividend reinvestment plan	260	225	205
Cash dividends paid, net of accretion	-5,853	-4,879	-3,737
Net cash provided by (used in) financing activities	-10,413	59,049	-455
Net increase (decrease) in cash and cash equivalents	-9,711	10,291	704
Cash and cash equivalents, beginning of period	11,103	812	108
Cash and cash equivalents, end of period	$1,392	$11,103	$812