BNC Bancorp (BNNC) 10-Q 9 Aug 16 2016 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2016	Aug. 04, 2016
Document and entity [Abstract]
Entity Registrant Name	BNC Bancorp
Entity Central Index Key	1,210,227
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Document Type	10-Q
Document Period End Date	Jun. 30, 2016
Document Fiscal Year Focus	2,016
Document Fiscal Period Focus	Q2
Amendment Flag	false
Entity Common Stock, Shares Outstanding		48,087,676

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Assets
Cash and due from banks	$ 70,525	$ 54,319
Interest-earning deposits in other banks	121,865	149,919
Investment securities available-for-sale, at fair value	539,781	490,140
Investment securities held-to-maturity, at amortized cost (fair value of $272,817 and $249,679 at June 30, 2016 and December 31, 2015, respectively)	263,277	244,417
Federal Home Loan Bank stock, at cost	11,582	8,171
Loans held for sale	41,703	39,470
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	4,812,685	4,199,871
Less allowance for loan losses	(33,841)	(31,647)
Net loans	4,778,844	4,168,224
Accrued interest receivable	19,581	18,055
Premises and equipment, net	136,775	112,968
Other real estate owned	30,514	32,561
FDIC indemnification asset	0	1,909
Investment in bank-owned life insurance	172,502	116,806
Goodwill and other intangible assets, net	207,234	152,985
Other assets	84,190	77,012
Total assets	6,478,373	5,666,956
Deposits:
Non-interest bearing demand	889,254	776,479
Interest-bearing demand	2,652,735	2,366,890
Time deposits	1,814,654	1,598,838
Total deposits	5,356,643	4,742,207
Short-term borrowings	106,336	103,212
Long-term debt	245,783	188,351
Accrued expenses and other liabilities	52,550	41,039
Total liabilities	5,761,312	5,074,809
Shareholders' equity:
Preferred stock, no par value; authorized 20,000,000 shares; 0 shares issued and outstanding at June 30, 2016 and December 31, 2015, respectively	0	0
Common stock, no par value; authorized 60,000,000 shares; 40,380,342 and 35,952,883 shares issued and outstanding at June 30, 2016 and December 31, 2015, respectively	549,212	448,728
Common stock, non-voting, no par value; authorized 20,000,000 shares; 4,820,844 shares issued and outstanding at June 30, 2016 and December 31, 2015, respectively	33,507	33,507
Retained earnings	127,581	102,583
Stock in directors rabbi trust	(4,958)	(4,753)
Directors deferred fees obligation	4,958	4,753
Accumulated other comprehensive income	6,761	7,329
Total shareholders' equity	717,061	592,147
Total liabilities and shareholders' equity	6,478,373	5,666,956
Originated loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	3,163,357	2,721,216
Acquired loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 1,649,328	$ 1,478,655

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Statement of Financial Position [Abstract]
Investment securities held-to-maturity	$ 272,817	$ 249,679
Common Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Preferred Stock, Par or Stated Value Per Share	$ 0	$ 0
Preferred Stock, Shares Authorized	20,000,000	20,000,000
Preferred Stock, Shares Issued	0	0
Preferred Stock, Shares Outstanding	0	0
Common stock
Common Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Common Stock, No Par Value	$ 0	$ 0
Common Stock, Shares Authorized	60,000,000	60,000,000
Common Stock, Shares, Issued	40,380,342	35,952,883
Common Stock, Shares, Outstanding	40,380,342	35,952,883
Common stock - nonvoting
Common Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Common Stock, No Par Value	$ 0	$ 0
Common Stock, Shares Authorized	20,000,000	20,000,000
Common Stock, Shares, Issued	4,820,844	4,820,844
Common Stock, Shares, Outstanding	4,820,844	4,820,844

Consolidated Statements of Inco

Consolidated Statements of Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Interest income:
Loans, including fees	$ 51,978	$ 40,494	$ 102,280	$ 79,914
Investment securities:
Taxable	2,908	1,261	5,628	2,427
Tax-exempt	3,294	3,160	6,539	6,341
Interest-earning balances and other	228	132	442	252
Total interest income	58,408	45,047	114,889	88,934
Interest expense:
Demand deposits	3,271	1,703	6,239	3,407
Time deposits	3,433	3,185	6,706	5,923
Short-term borrowings	162	128	328	266
Long-term debt	1,612	1,298	3,196	2,535
Total interest expense	8,478	6,314	16,469	12,131
Net interest income	49,930	38,733	98,420	76,803
Provision for loan losses	698	301	1,345	411
Net interest income after provision for loan losses	49,232	38,432	97,075	76,392
Non-interest income:
Mortgage lending income	2,671	2,777	5,352	5,276
Service charges	2,422	1,810	4,743	3,454
Earnings on bank-owned life insurance	1,160	601	1,918	1,255
Gain (loss) on sale of investment securities, net	4	(4)	(35)	45
Other	2,758	3,509	4,999	4,963
Total non-interest income	9,015	8,693	16,977	14,993
Non-interest expense:
Salaries and employee benefits	19,666	16,202	38,079	33,612
Occupancy	3,508	2,618	6,760	5,199
Furniture and equipment	1,994	1,597	4,071	3,225
Data processing and supplies	1,544	1,073	2,982	2,234
Advertising and business development	923	617	1,607	1,263
Insurance, professional and other services	3,187	1,842	5,461	4,101
FDIC insurance assessments	900	702	1,800	1,437
Loan, foreclosure and other real estate owned expenses	870	3,536	2,246	5,861
Other	4,248	3,212	8,720	6,458
Total non-interest expense	36,840	31,399	71,726	63,390
Income before income tax expense	21,407	15,726	42,326	27,995
Income tax expense	6,760	4,712	13,244	8,223
Net income	$ 14,647	$ 11,014	$ 29,082	$ 19,772
Earnings Per Share [Abstract]
Basic (USD per share)	$ 0.35	$ 0.34	$ 0.71	$ 0.61
Diluted (USD per share)	0.35	0.34	0.71	0.60
Dividends declared and paid per common share	$ 0.05	$ 0.05	$ 0.10	$ 0.10

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Statement of Comprehensive Income [Abstract]
Net income	$ 14,647	$ 11,014	$ 29,082	$ 19,772
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax [Abstract]
Unrealized holding (losses) gains on investments securities available-for-sale	2,814	(3,089)	1,808	(1,735)
Tax effect	(1,042)	1,142	(669)	642
Reclassification of losses (gains) recognized in net income on sale of investment securities available-for-sale	(4)	4	35	(45)
Tax effect	1	(1)	(13)	17
Amortization of unrealized gains on investment securities transferred from available-for-sale to held-to-maturity	(280)	(195)	(772)	(357)
Tax effect	103	72	285	132
Net of tax amount	1,592	(2,067)	674	(1,346)
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax [Abstract]
Unrealized holding losses	(360)	552	(1,972)	(744)
Tax effect	134	(204)	730	276
Net of tax amount	(226)	348	(1,242)	(468)
Total other comprehensive loss	1,366	(1,719)	(568)	(1,814)
Total comprehensive income	$ 16,013	$ 9,295	$ 28,514	$ 17,958

Consolidated Statements of Shar

Consolidated Statements of Shareholders' Equity - USD ($) $ in Thousands	Total	Preferred Stock	Common stock	Common stockSouthcoast Financial Corporation	Retained earnings	Stock in directors rabbi trust	Directors deferred fees obligation	Accumulated other comprehensive income	Common stock - nonvotingCommon stock
Beginning Balance, Value at Dec. 31, 2014	$ 390,388	$ 0	$ 281,488		$ 65,211	$ (3,429)	$ 3,429	$ 10,182	$ 33,507
Beginning Balance Shares at Dec. 31, 2014		0	27,777,737						4,820,844
Net income	19,772				19,772
Directors deferred fees						(1,713)	1,713
Other comprehensive income (loss), net of tax	(1,814)							(1,814)
Stock Repurchased During Period, Shares			(200,000)
Stock Repurchased During Period, Value	(3,622)		$ (3,622)
Common Stock Issued Pursuant To [Abstract]
Dividend reinvestment plan, Shares			9,068
Dividend reinvestment plan, Value	158		$ 158
Stock-based compensation, Shares			97,262
Stock-based compensation, Value	1,349		$ 1,349
Stock options exercised, Shares			170,826
Stock options exercised, Value	2,074		$ 2,074
Shares Withheld for Payment of Taxes, Shares			(26,862)
Shares Withheld for Payment of Taxes, Value	(496)		$ (496)
Shares Traded to Exercise Stock Options, Shares			(60,187)
Shares Traded to Exercise Stock Options, Value	(1,047)		$ (1,047)
Excess income tax benefit	85		85
Cash Dividends:
Common stock	(3,264)				(3,264)
Ending Balance, Value at Jun. 30, 2015	$ 403,583	$ 0	$ 279,989		81,719	(5,142)	5,142	8,368	$ 33,507
Ending Balance, Shares at Jun. 30, 2015		0	27,767,844						4,820,844
Cash Dividends:
Common Stock, Dividends, Per Share, Cash Paid	$ 0.10
Beginning Balance, Value at Mar. 31, 2015								10,087
Net income	$ 11,014
Other comprehensive income (loss), net of tax	(1,719)
Ending Balance, Value at Jun. 30, 2015	403,583	$ 0	$ 279,989		81,719	(5,142)	5,142	8,368	$ 33,507
Ending Balance, Shares at Jun. 30, 2015		0	27,767,844						4,820,844
Beginning Balance, Value at Dec. 31, 2015	592,147	$ 0	$ 448,728		102,583	(4,753)	4,753	7,329	$ 33,507
Beginning Balance Shares at Dec. 31, 2015		0	35,952,883						4,820,844
Net income	29,082				29,082
Directors deferred fees						(205)	205
Other comprehensive income (loss), net of tax	(568)							(568)
Stock Issued During Period, Shares, Acquisitions				4,310,445
Stock Issued During Period, Value, Acquisitions	98,968			$ 98,968
Common Stock Issued Pursuant To [Abstract]
Dividend reinvestment plan, Shares			6,428
Dividend reinvestment plan, Value	139		$ 139
Stock-based compensation, Shares			102,320
Stock-based compensation, Value	1,532		$ 1,532
Stock options exercised, Shares			41,171
Stock options exercised, Value	412		$ 412
Shares Withheld for Payment of Taxes, Shares			(32,905)
Shares Withheld for Payment of Taxes, Value	(567)		$ (567)
Excess income tax benefit	170		170
Cash Dividends:
Common stock	(4,084)				(4,084)
Ending Balance, Value at Jun. 30, 2016	$ 717,061	$ 0	$ 549,212		127,581	(4,958)	4,958	6,761	$ 33,507
Ending Balance, Shares at Jun. 30, 2016		0	40,380,342						4,820,844
Cash Dividends:
Common Stock, Dividends, Per Share, Cash Paid	$ 0.10
Beginning Balance, Value at Mar. 31, 2016								5,395
Net income	$ 14,647
Other comprehensive income (loss), net of tax	1,366
Ending Balance, Value at Jun. 30, 2016	$ 717,061	$ 0	$ 549,212		$ 127,581	$ (4,958)	$ 4,958	$ 6,761	$ 33,507
Ending Balance, Shares at Jun. 30, 2016		0	40,380,342						4,820,844

Consolidated Statements of Sha7

Consolidated Statements of Shareholders' Equity (Parenthetical) - $ / shares	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Statement of Stockholders' Equity [Abstract]
Common Stock, Dividends, Per Share, Cash Paid	$ 0.10	$ 0.10

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Operating Activities
Net income	$ 29,082	$ 19,772
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for loan losses	1,345	411
Asset Impairment Charges	417	0
Depreciation and amortization	3,132	2,893
Amortization of premiums, net	2,490	1,894
Amortization of intangible assets	2,343	1,679
Accretion of fair value purchase accounting adjustments, net	(11,843)	(11,041)
Stock-based compensation	1,532	1,349
Excess income tax benefit of share-based compensation	0	85
Deferred compensation	730	194
Earnings on bank-owned life insurance	(1,918)	(1,255)
Loss (gain) on sale of investment securities, net	35	(45)
Loss (gain) on disposal of premises and equipment	(3)	(11)
Losses on other real estate owned	329	3,218
Gain on sale of loans, net	(7,021)	(5,947)
Origination of loans held for sale	(174,763)	(168,593)
Proceeds from sales of loans held for sale	175,445	175,971
Decrease in accrued interest receivable	(1,526)	(152)
Payments received from FDIC under loss-share agreements	823	2,163
Payment Received from FDIC For Loss Share Termination	2,110	0
Decrease (increase) in other assets	3,460	2,085
Increase in accrued expenses and other liabilities	26	3,242
Net cash provided by operating activities	26,225	27,912
Investing activities
Purchases of investment securities available-for-sale	(31,401)	(87,672)
Purchases of investment securities held-to-maturity	(30,616)	(13,647)
Proceeds from sales of investment securities available-for-sale	5,916	19,877
Proceeds from maturities and payments of investment securities available-for-sale	11,541	14,354
Proceeds from maturities and payments of investment securities held-to-maturity	4,380	11,751
(Purchase) redemption of Federal Home Loan Bank stock	(541)	(2,451)
Net increase in loans	(246,134)	(172,847)
Purchases of premises and equipment	(5,467)	(3,061)
Proceeds from disposal of premises and equipment	3	32
Investment in bank-owned life insurance	(40,341)	(150)
Investment in other real estate owned	(1,115)	(1,256)
Proceeds from sales of other real estate owned	6,733	10,817
Cash Acquired from Acquisition	24,017	0
Net cash used in investing activities	(303,025)	(224,253)
Financing activities
Net increase in deposits	278,978	114,277
Net decrease in short-term borrowings	(9,866)	75,748
Net increase in long-term-debt	(60)	168
Payments for Repurchase of Common Stock	0	(3,622)
Common stock issued from exercise of stock options, net of taxes	412	1,027
Common stock issued pursuant to dividend reinvestment plan	139	158
Common stock repurchased in lieu of income taxes	(567)	(496)
Cash dividends paid	(4,084)	(3,264)
Net cash provided by financing activities	264,952	183,996
Net (decrease) increase in cash and cash equivalents	(11,848)	(12,345)
Cash and cash equivalents, beginning of period	204,238	85,194
Cash and cash equivalents, end of period	192,390	72,849
Supplemental Statement of Cash Flows Disclosure
Interest paid	16,173	12,351
Income taxes paid	9,306	1,617
Summary of Noncash Investing and Financing Activities
Transfer of loans to other real estate owned	4,494	5,129
Transfer of loans held for sale to portfolio loans	2,739	1,137
FDIC indemnification asset decrease, net	$ 27	$ 1,883

Acquisitions

Acquisitions	6 Months Ended
	Jun. 30, 2016
Business Combinations [Abstract]
Acquisitions	ACQUISITIONS Acquisition of Southcoast Financial Corporation On June 17, 2016, the Company completed the acquisition of Southcoast Financial Corporation ("Southcoast"), the holding company for Southcoast Community Bank, pursuant to the terms of the Agreement and Plan of Merger dated August 14, 2015, as amended. Under the merger agreement, Southcoast's shareholders received 0.6068 shares of the Company's voting common stock for each share of Southcoast common stock owned. A summary of the fair value of assets received and liabilities assumed are as follows: As Recorded by Southcoast Fair Value Adjustments As Recorded by BNC Assets (Dollars in thousands) Cash $ 24,019 $ — $ 24,019 Investment securities available-for-sale 30,607 (1,094 ) (1) 29,513 Loans 365,232 (9,233 ) (2) 355,999 Premises and equipment 19,585 2,304 (3) 21,889 Other real estate owned 306 — 306 Core deposit intangible — 3,058 (4) 3,058 Other assets 23,082 845 (5) 23,927 Total assets acquired 462,831 (4,120 ) 458,711 Liabilities Deposits (335,924 ) (175 ) (6) (336,099 ) Borrowings (69,300 ) (1,255 ) (7) (70,555 ) Other liabilities (4,789 ) (91 ) (8) (4,880 ) Total liabilities assumed (410,013 ) (1,521 ) (411,534 ) Net assets acquired $ 52,818 $ (5,641 ) 47,177 Total consideration paid 98,970 Goodwill $ 51,793 Explanation of fair value adjustments: (1) Adjustment to reflect estimated fair value of investment securities available-for-sale. (2) Adjustment to reflect estimated fair value of loans. (3) Adjustment to reflect estimated fair value of premises and equipment. (4) Adjustment to reflect recording of core deposit intangible. (5) Adjustment to reflect recording of deferred tax asset recognized from acquisition. (6) Adjustment to reflect estimated fair value of time deposits based on market rates for similar products. (7) Adjustment to reflect estimated fair value of borrowings based on market rates for similar products. (8) Adjustment to reflect the estimated fair market value of certain leases and other assumed liabilities. A summary of the consideration paid is as follows: (Dollars in thousands) Common stock issued (4,310,445 shares) $ 98,968 Cash payments to common shareholders 2 Total consideration paid $ 98,970 This acquisition expanded and further strengthened the Company's presence in the Charleston, South Carolina metropolitan area, provided a low-cost base of core deposits, and expanded our presence in this key market. None of the goodwill associated with this acquisition is deductible for income tax purposes. All goodwill related to this acquisition was allocated to the banking operations reporting unit. The following table presents unaudited pro-forma information as if the acquisition of Southcoast had occurred on January 1, 2016 under the “Pro-forma” columns. In addition, the following table presents unaudited pro-forma information as if the acquisition of Southcoast and Valley Financial Corporation ("Valley") had occurred on January 1, 2015 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 and is based on our historical results for the periods presented. Transaction-related costs related to each 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 acquired Valley or Southcoast at the beginning of 2016 or 2015. Cost savings are also not reflected in the unaudited pro-forma amounts. Due to the timing of the Southcoast acquisition, the financial performance of the former Southcoast operations included in our Consolidated Statements of Income from the date of acquisition through June 30, 2016 was immaterial. Pro-forma for Six Months Ended June 30, 2016 2015 (Dollars in thousands, except per share data) Net interest income $ 106,078 $ 101,632 Non-interest income 18,130 19,610 Net income 34,039 21,739 Pro-forma earnings per share: Basic $ 0.75 $ 0.51 Diluted $ 0.75 $ 0.51 Acquisition of Branches from CertusBank, N.A. On October 16, 2015, the Company completed the acquisition of seven branches from CertusBank, N.A. (the "Certus branches"), pursuant to the terms of the Purchase and Assumption Agreement dated June 1, 2015. A summary of the fair value of assets received and liabilities assumed are as follows: As Recorded by Certus Fair Value Adjustments As Recorded by BNC Assets (Dollars in thousands) Cash $ 1,297 $ — $ 1,297 Loans 186,354 (3,283 ) (1) 183,071 Premises and equipment 8,542 698 (2) 9,240 Accrued interest receivable 443 — 443 Core deposit intangible — 1,348 (3) 1,348 Other assets 11 734 (4) 745 Total assets acquired 196,647 (503 ) 196,144 Liabilities Deposits (175,783 ) (260 ) (5 ) (176,043 ) Other liabilities (119 ) (487 ) (6 ) (606 ) Total liabilities assumed (175,902 ) (747 ) (176,649 ) Net assets acquired $ 20,745 $ (1,250 ) 19,495 Cash consideration paid 25,692 Goodwill $ 6,197 Explanation of fair value adjustments: (1) Adjustment to reflect estimated fair value of loans. (2) Adjustment to reflect estimated fair value of premises and equipment. (3) Adjustment to reflect recording of core deposit intangible. (4) Adjustment to reflect recording of deferred tax asset recognized from acquisition. (5) Adjustment to reflect estimated fair value of time deposits based on market rates for similar products. (6) Adjustment to reflect the estimated fair market value of certain leases. This acquisition expanded and further strengthened the Company's presence in upstate South Carolina, provided a low-cost base of core deposits and provided an experienced in-market team that enhances our ability to grow in that market. None of the goodwill associated with this acquisition is deductible for income tax purposes. All goodwill related to this acquisition was allocated to the banking operations reporting unit. Acquisition of Valley On July 1, 2015, the Company completed the acquisition of Valley, the holding company for Valley Bank, pursuant to the terms of the Agreement and Plan of Merger dated November 17, 2014. Under the merger agreement, Valley's shareholders received 1.1081 shares of the Company's voting common stock for each share of Valley common stock owned. A summary of assets received and liabilities assumed for Valley, as well as the associated fair value adjustments, are as follows: As Recorded by Valley Fair Value Adjustments Recast Adjustments As Recorded by BNC Assets (Dollars in thousands) Cash and due from banks $ 13,263 $ — $ — $ 13,263 Investment securities available-for-sale 152,125 (796 ) (1) — 151,329 Federal Home Loan Bank stock, at cost 4,338 — — 4,338 Loans 624,006 (15,973 ) (2) (616 ) 607,417 Premises and equipment 8,934 892 (3) — 9,826 Accrued interest receivable 2,263 — — 2,263 Other real estate owned 8,114 — (900 ) 7,214 Core deposit intangible — 6,964 (4) — 6,964 Other assets 31,297 3,641 (5) (225 ) 34,713 Total assets acquired 844,340 (5,272 ) (1,741 ) 837,327 Liabilities Deposits (646,053 ) $ (1,086 ) (6) — (647,139 ) Borrowings (141,087 ) 548 (7) — (140,539 ) Other liabilities (972 ) (458 ) (8) — (1,430 ) Total liabilities assumed (788,112 ) (996 ) — (789,108 ) Net assets acquired $ 56,228 $ (6,268 ) $ (1,741 ) 48,219 Total consideration paid 108,700 Goodwill $ 60,481 Explanation of fair value adjustments: (1) Adjustment to reflect estimated fair value of investment securities available-for-sale. (2) Adjustment to reflect estimated fair value of loans. (3) Adjustment to reflect estimated fair value of premises and equipment. (4) Adjustment to reflect recording of core deposit intangible. (5) Adjustment to reflect recording of deferred tax asset recognized from acquisition. (6) Adjustment to reflect estimated fair value of time deposits based on market rates for similar products. (7) Adjustment to reflect estimated fair value of borrowings based on market rates for similar products. (8) Adjustment to reflect the estimated fair market value of certain leases. A summary of the consideration paid is as follows: (Dollars in thousands) Common stock issued (5,500,697 shares) $ 107,924 Fair value of Valley stock options assumed 773 Cash payments to common shareholders 3 Total consideration paid $ 108,700 With this acquisition, the Company expanded its footprint into Roanoke, Virginia with the addition of nine branches and an experienced in-market team that enhances the Company’s ability to compete in that market. The Company projects cost savings will be recognized in future periods through the elimination of redundant operations. None of the goodwill associated with this acquisition is deductible for income tax purposes. All goodwill related to this acquisition was allocated to the banking operations reporting unit. During the second quarter of 2016, the Company revised its initial estimates and assumptions regarding the valuation of certain acquired loans, acquired other real estate owned, acquired other assets, and acquired deferred tax assets. Because such revision occurred during the first 12 months following the date of acquisition and was not the result of an event that occurred subsequent to the acquisition date, the Company has increased the goodwill recorded in the acquisition of Valley by $1.7 million to reflect this change in estimate. The Company incurred total transaction-related costs of $3.8 million and $1.2 million during the three months ended June 30, 2016 and 2015, respectively, and total transaction-related costs of $5.2 million and $4.1 million during the six months ended June 30, 2016 and 2015, respectively. Transaction-related costs, which are expensed as incurred as a component of non-interest expense, primarily include, but are not limited to, severance costs, professional services, data processing fees, and marketing and advertising expenses. The Company has determined the above noted acquisitions each 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 at the acquisition date or if the change results from an event that occurred after the acquisition date.

Basis of Presentation

Basis of Presentation	6 Months Ended
	Jun. 30, 2016
Accounting Policies [Abstract]
Basis of Presentation	BASIS OF PRESENTATION Organization BNC Bancorp (the "Company") was formed in 2002 to serve as a one-bank holding company for Bank of North Carolina (the "Bank"). The Bank is incorporated under the laws of the State of North Carolina and provides a wide range of banking services tailored to the particular banking needs of the communities we serve. The Bank is principally engaged in the business of attracting deposits from the general public and using those deposits, together with other funding from our lines of credit, to make commercial and consumer loans. The Bank also offers a wide range of banking services, including traditional products such as checking and savings accounts. The Bank conducts operations through 70 full-service banking offices, including 35 branches in North Carolina, 26 branches in South Carolina and nine branches in Virginia. The branches in Virginia and South Carolina operate as BNC Bank. The Company is subject to the rules and regulations of the Board of Governors of the Federal Reserve System. The Bank operates 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 Company and BNC are examined periodically by those regulatory authorities. These consolidated financial statements and notes are presented in accordance with the instructions for Form 10-Q and, therefore, do not include all information and notes necessary for a complete presentation of financial position, results of operations and cash flow activity required in accordance with accounting principles generally accepted in the United States of America (“GAAP”). In the opinion of management, all normal recurring adjustments necessary for a fair statement of the consolidated financial position and consolidated results of operations have been made. The information contained in the consolidated financial statements and footnotes included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2015 should be referred to in connection with these unaudited interim consolidated financial statements. Certain amounts in the 2015 consolidated financial statements have been reclassified to conform to the 2016 presentation. The reclassifications had no effect on net income or shareholders' equity as previously reported. The preparation of consolidated financial statements in conformity with 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. Recently Adopted and Issued Accounting Standards In June 2016, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update (“ASU”) No. 2016-13, Financial Instruments-Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments . The ASU requires an organization to measure all expected credit losses for financial assets held at the reporting date based on historical experience, current conditions, and reasonable and supportable forecasts. Financial institutions and other organizations will now use forward-looking information to better inform their credit loss estimates. Many of the loss estimation techniques applied today will still be permitted, although the inputs to those techniques will change to reflect the full amount of expected credit losses. Organizations will continue to use judgment to determine which loss estimation method is appropriate for their circumstances. Additionally, the ASU amends the accounting for credit losses on available-for-sale debt securities and purchased financial assets with credit deterioration. For public companies, this ASU will be effective for interim and annual periods beginning after December 15, 2019. The Company is currently evaluating the impact the adoption of this ASU will have on its consolidated financial statements. In March 2016, the FASB issued ASU 2016-09, Compensation-Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting , which simplifies several aspects of the accounting for share-based payment award transactions including the income tax consequences, the classification of awards as either equity or liabilities, and the classification on the statement of cash flows. ASU 2016-09 is effective for fiscal years beginning after December 15, 2016 and interim periods within those annual periods. Early adoption is permitted. The Company elected to early adopt ASU 2016-09 in the second quarter of 2016 with an effective date of January 1, 2016. As a result of the adoption, the Company recognized excess tax benefits in the Consolidated Statements of Income and the Consolidated Statements of Cash Flows of $0.2 million for the three and six months ended June 30, 2016, respectively. Prior periods have not been adjusted. In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842) , which will require lessees to recorded as an asset on the balance sheet for the right to use the leased asset and a liability for the corresponding lease obligation for leases with terms of more than 12 months. The accounting treatment for lessors will remain relatively unchanged. The ASU also requires additional qualitative and quantitative disclosures related to the nature, timing and uncertainty of cash flows arising from leases. ASU 2016-02 is effective for fiscal years beginning after December 15, 2018, and interim periods within those fiscal years. Early adoption is permitted. The Company is currently evaluating the impact the adoption of this ASU will have on its consolidated financial statements. In January 2016, the FASB issued ASU 2016-01, Recognition and Measurement of Financial Assets and Financial Liabilities , which revises the accounting treatment related to classification and measurement of investments in equity securities and the presentation of certain fair value changes for financial liabilities measured as fair value. Upon adoption, investments in equity securities, except those accounted for under the equity method or that result in the consolidation of the investee, will be measured at fair value with changes in fair value recognized in net income. Equity investments that do not have a readily determinable fair value may be measured at cost minus impairment, plus or minus changes from observable price changes in an orderly transaction. ASU 2016-01 is effective for fiscal years beginning after December 15, 2017, and interim periods within those fiscal years. Early adoption of certain provisions is permitted. The Company does not expect the adoption of this ASU to have a material impact on its consolidated financial statements. In September 2015, the FASB issued ASU 2015-16, Simplifying the Accounting for Measurement-Period Adjustments (Topic 805) , which eliminates the requirement that an acquirer in a business combination account for measurement-period adjustments retrospectively. Instead, an acquirer will recognize measurement period adjustments during the period in which it determines the amount of the adjustment. ASU 2015-16 is effective for fiscal years beginning after December 15, 2015, and interim periods within those fiscal years. Early adoption is permitted. The Company adopted ASU 2015-16 on January 1, 2016 and the adoption did not have a material impact on the Company's consolidated financial statements. In April 2015, the FASB issued ASU 2015-03, Simplifying the Presentation of Debt Issuance Costs (Subtopic 835-30) , which amends the presentation of debt issuance costs in the balance sheet as a direct deduction from the related debt liability. This update affects disclosures related to debt issuance costs but does not affect existing recognition and measurement guidance for these items. ASU 2015-03 is effective for annual and interim periods beginning after December 15, 2015. Prior to the adoption of ASU 2015-03 on January 1, 2016, the Company recorded debt issuance costs as other assets in the consolidated balance sheet. The Consolidated Balance Sheet as of December 31, 2015 reflects a reduction in other assets and long-term debt of $1.2 million related to the reclassification of debt issuance costs. In February 2015, the FASB issued ASU 2015-02, Amendments to the Consolidation Analysis (Topic 810) , which amends the consolidation analysis required under GAAP. The revised guidance amends the consolidation analysis based on certain fee arrangements or relationships to the reporting entity and, for limited partnerships, requires entities to consider the limited partner’s rights relative to the general partner. ASU 2015-02 is effective for annual and interim periods beginning after December 15, 2015. The Company adopted ASU 2015-02 on January 1, 2016 and the adoption did not have a material impact on the Company's consolidated financial statements. In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606) . This ASU was developed as a joint project with the International Accounting Standards Board to remove inconsistencies in revenue requirements and provide a more robust framework for addressing revenue issues. The ASU’s core principle is that an entity should recognize revenue when it transfers promised goods or services to customers in an amount that reflects the consideration to which an entity expects to be entitled in exchange for those goods or services. In August 2015, the FASB issued ASU No. 2015-14, which deferred the effective date by one year (i.e., interim and annual reporting periods beginning after December 15, 2017). Early adoption is permitted, but not before the original effective date (i.e., interim and annual reporting periods beginning after December 15, 2016). The ASU may be adopted using either a modified retrospective method or a full retrospective method. The Company is currently evaluating the impact the adoption of this ASU will have on its consolidated financial statements.

Earnings Per Share

Earnings Per Share	6 Months Ended
	Jun. 30, 2016
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 and restricted stock awards (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. The Company's basic and diluted earnings per share calculations are presented in the following table: For the Three Months Ended June 30, For the Six Months Ended June 30, 2016 2015 2016 2015 (Dollars in thousands, except per share amounts) Net income $ 14,647 $ 11,014 $ 29,082 $ 19,772 Weighted average common shares - basic 41,468,918 32,585,419 41,129,258 32,632,858 Add: Effect of dilutive Stock Rights 91,079 67,540 99,884 71,222 Weighted average common shares - diluted 41,559,997 32,652,959 41,229,142 32,704,080 Basic earnings per common share $ 0.35 $ 0.34 $ 0.71 $ 0.61 Diluted earnings per common share $ 0.35 $ 0.34 $ 0.71 $ 0.60 For the three and six months ended June 30, 2016 and 2015, respectively, there were no shares of Stock Rights excluded in computing diluted common shares outstanding.

Investment Securities

Investment Securities	6 Months Ended
	Jun. 30, 2016
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 are presented in the following tables: Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value June 30, 2016 (Dollars in thousands) Available-for-sale: U.S. Government agencies $ 11,284 $ 531 $ — $ 11,815 State and municipals 169,122 11,769 1 180,890 Corporate debt securities 51,714 253 1,977 49,990 Asset-backed debt securities 166,167 243 2,109 164,301 Equity securities 15,518 236 427 15,327 Mortgage-backed securities: Residential government sponsored 114,405 1,703 138 115,970 Other government sponsored 1,432 56 — 1,488 $ 529,642 $ 14,791 $ 4,652 $ 539,781 Held-to-maturity: State and municipals $ 244,277 $ 10,251 $ 158 $ 254,370 Corporate debt securities 19,000 527 1,080 18,447 $ 263,277 $ 10,778 $ 1,238 $ 272,817 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value December 31, 2015 (Dollars in thousands) Available-for-sale: U.S. Government agencies $ 12,025 $ 302 $ — $ 12,327 State and municipals 169,907 10,711 — 180,618 Corporate debt securities 48,392 — 689 47,703 Asset-backed debt securities 140,773 15 2,041 138,747 Equity securities 11,520 270 517 11,273 Mortgage-backed securities: Residential government sponsored 97,611 562 396 97,777 Other government sponsored 1,616 79 — 1,695 $ 481,844 $ 11,939 $ 3,643 $ 490,140 Held-to-maturity: State and municipals $ 228,417 $ 6,698 $ 477 $ 234,638 Corporate debt securities 16,000 1 960 15,041 $ 244,417 $ 6,699 $ 1,437 $ 249,679 The amortized cost and estimated fair value of investment securities at June 30, 2016 , by contractual maturity, are shown below. 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: (Dollars in thousands) Due within one year $ 2,219 $ 2,247 Due after one through five years 66,795 70,218 Due after five through ten years 79,474 79,915 Due after ten years 365,636 372,074 Total debt securities 514,124 524,454 Equity securities 15,518 15,327 $ 529,642 $ 539,781 Held-to-maturity: Due within one year $ 6,479 $ 6,579 Due after one year through five years 63,001 64,787 Due after five through ten years 22,537 23,486 Due after ten years 171,260 177,965 $ 263,277 $ 272,817 At June 30, 2016 and December 31, 2015, respectively, investment securities with an estimated fair value of approximately $371.8 million 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 sale of investment securities: Three Months Ended June 30, Six Months Ended June 30, 2016 2015 2016 2015 (Dollars in thousands) Proceeds from sales $ 548 $ 5,342 $ 5,916 $ 19,877 Gross realized gains on sales $ 4 $ — $ 134 $ 82 Gross realized losses on sales — (4 ) (169 ) (37 ) Total realized gains (losses), net $ 4 $ (4 ) $ (35 ) $ 45 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: Less Than 12 Months 12 Months or More Total Number of Securities Fair Value Unrealized Losses Number of Securities Fair Value Unrealized Losses Fair Value Unrealized Losses June 30, 2016 (Dollars in thousands) Available-for-sale: State and municipals 1 $ 454 $ 1 — $ — $ — $ 454 $ 1 Corporate debt securities 4 15,709 1,286 3 9,969 691 25,678 1,977 Asset-backed debt securities 15 79,267 753 18 60,329 1,356 139,596 2,109 Equity securities 1 1,864 4 2 5,846 423 7,710 427 Mortgage-backed securities 9 19,555 114 3 3,825 24 23,380 138 30 $ 116,849 $ 2,158 26 $ 79,969 $ 2,494 $ 196,818 $ 4,652 Held-to-maturity: State and municipals — $ — $ — 13 $ 10,471 $ 158 $ 10,471 $ 158 Corporate debt securities — — — 1 2,920 1,080 2,920 1,080 — $ — $ — 14 $ 13,391 $ 1,238 $ 13,391 $ 1,238 Less Than 12 Months 12 Months or More Total Number of Securities Fair Value Unrealized Losses Number of Securities Fair Value Unrealized Losses Fair Value Unrealized Losses December 31, 2015 (Dollars in thousands) Available-for-sale: Corporate debt securities 6 $ 29,015 $ 658 1 $ 2,969 $ 31 $ 31,984 $ 689 Asset-backed debt securities 29 114,305 1,726 1 4,486 315 118,791 2,041 Equity securities 1 5,200 175 1 637 342 5,837 517 Mortgage-backed securities 20 66,175 327 3 3,432 69 69,607 396 56 $ 214,695 $ 2,886 6 $ 11,524 $ 757 $ 226,219 $ 3,643 Held-to-maturity: State and municipals 13 $ 20,658 $ 210 20 $ 17,072 $ 267 $ 37,730 $ 477 Corporate debt securities — — — 1 3,040 960 3,040 960 13 $ 20,658 $ 210 21 $ 20,112 $ 1,227 $ 40,770 $ 1,437 The Company reviews the investment securities portfolio on a quarterly basis to monitor its exposure to other-than-temporary impairment. A determination as to whether a security’s decline in fair value is other-than-temporary takes into consideration numerous factors and the relative significance of any single factor can vary by security. Some factors the Company may consider in the other-than-temporary impairment analysis include the length of time and extent to which the security has been in an unrealized loss position, changes in security ratings, financial condition and near-term prospects of the issuer, as well as security and industry specific economic conditions. Based on this evaluation, the Company does not believe any unrealized loss at June 30, 2016 represents an other-than-temporary impairment, as these unrealized losses are primarily attributable to changes in interest rates and the current market conditions, and not credit deterioration. The Company has concluded there are no concerns about the long-term viability of the issuers of these securities and the Company currently does not intend to sell, nor does it believe that it will be required to sell, these securities before recovery of their amortized cost basis.

Loans and Allowance for Loan Lo

Loans and Allowance for Loan Losses	6 Months Ended
	Jun. 30, 2016
Receivables [Abstract]
Loans and Allowance for Loan Losses	LOANS AND ALLOWANCE FOR LOAN LOSSES Major categories of loans are presented below: June 30, 2016 December 31, 2015 Originated Acquired (1) Total Originated Acquired (1) Total (Dollars in thousands) Commercial real estate $ 1,812,009 $ 687,337 $ 2,499,346 $ 1,575,555 $ 670,460 $ 2,246,015 Commercial construction 366,856 85,984 452,840 281,591 83,418 365,009 Commercial and industrial 333,995 120,487 454,482 279,495 139,621 419,116 Leases 29,463 — 29,463 26,773 — 26,773 Total commercial 2,542,323 893,808 3,436,131 2,163,414 893,499 3,056,913 Residential construction 79,977 18,055 98,032 59,937 16,084 76,021 Residential mortgage 526,556 731,295 1,257,851 484,895 563,563 1,048,458 Consumer and other 14,501 6,170 20,671 12,970 5,509 18,479 Total portfolio loans $ 3,163,357 $ 1,649,328 $ 4,812,685 $ 2,721,216 $ 1,478,655 $ 4,199,871 (1) Amount includes $0 and $40.9 million of acquired loans covered under FDIC loss-share agreements at June 30, 2016 and December 31, 2015, respectively. The unpaid principal balance for acquired loans covered under FDIC loss-share agreements was $0 and $41.4 million at June 30, 2016 and December 31, 2015, respectively. On May 2, 2016, the Bank entered into an agreement with the FDIC to terminate all existing loss-share agreements with the FDIC. All rights and obligations of the Bank and the FDIC under the FDIC loss share agreements, including the clawback provisions and the settlement of loss share and expense reimbursement claims, have been resolved and terminated under such agreement. The Company evaluates loans acquired with evidence of credit deterioration in accordance with the provisions of ASC 310-30. 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. Generally, the acquired loans that meet the Company’s definition for substandard status fall within the definition of credit-impaired covered loans. The following table presents loans acquired during the six months ended June 30, 2016, at acquisition date, accounted for under ASC 310-30: (Dollars in thousands) Contractually required payments receivable $ 17,168 Contractual cash flows not expected to be collected (non-accretable) (2,072 ) Expected cash flows 15,096 Interest component of expected cash flows (811 ) Fair value of loans acquired $ 14,285 The acquisition date unpaid balance of loans acquired during the six months ended June 30, 2016 that did not have credit deterioration was $348.1 million with an estimated fair value of $341.7 million . The discount will be amortized on a level-yield basis over the economic life of the loans. The following table presents a summary of the activity of the Company's loans accounted for under ASC 310-30: Six Months Ended June 30, 2016 2015 (Dollars in thousands) Balance at beginning of period $ 142,671 $ 150,382 Purchased loans acquired 14,285 — Accretion 2,223 2,975 Transfer to other real estate owned (2,695 ) (944 ) Net payments received (19,397 ) (15,369 ) Net charge-offs (937 ) (725 ) Other activity, net 900 (2,009 ) Balance at end of period $ 137,050 $ 134,310 The following table presents a summary of changes in accretable difference on purchased loans accounted for under ASC 310-30: Six Months Ended June 30, 2016 2015 (Dollars in thousands) Balance at beginning of period $ 2,853 $ 4,418 Accretion (2,223 ) (2,975 ) Accretable difference acquired 811 — Adjustments to accretable difference due to changes in expected future cash flows 1,433 1,867 Balance at end of period $ 2,874 $ 3,310 The Company has the ability to borrow funds from the FHLB and from the Federal Reserve Bank. At June 30, 2016 and December 31, 2015, real estate loans with carrying values of $2.03 billion and $1.68 billion , respectively, were pledged to secure borrowing facilities from these institutions. A summary of the changes to the allowance for loan losses, by class of financing receivable, is presented below: For the three months ended June 30, 2016 Commercial real estate Commercial construction Commercial and industrial Leases Residential construction Residential mortgage Consumer and other Total (Dollars in thousands) Balance March 31, 2016 $ 13,921 $ 5,214 $ 4,468 $ 107 $ 552 $ 8,020 $ 266 $ 32,548 Charge-offs (386 ) — (51 ) — — (407 ) (10 ) (854 ) Recoveries 128 385 131 — 6 790 9 1,449 Provision (1) 784 (357 ) 662 2 (21 ) (382 ) 10 698 Balance June 30, 2016 $ 14,447 $ 5,242 $ 5,210 $ 109 $ 537 $ 8,021 $ 275 $ 33,841 For the three months ended June 30, 2015 Commercial real estate Commercial construction Commercial and industrial Leases Residential construction Residential mortgage Consumer and other Total (Dollars in thousands) Balance March 31, 2015 $ 12,802 $ 3,377 $ 3,116 $ 85 $ 411 $ 9,345 $ 215 $ 29,351 Charge-offs (14 ) (74 ) (24 ) — — (399 ) (210 ) (721 ) Recoveries 375 719 273 — 4 277 109 1,757 Provision (2) (228 ) 1,578 (72 ) 7 48 (1,107 ) 75 301 Change in FDIC indemnification asset (2) 5 (53 ) (38 ) — — 22 11 (53 ) Balance June 30, 2015 $ 12,940 $ 5,547 $ 3,255 $ 92 $ 463 $ 8,138 $ 200 $ 30,635 For the six months ended June 30, 2016 Commercial real estate Commercial construction Commercial and industrial Leases Residential construction Residential mortgage Consumer and other Total (Dollars in thousands) Balance December 31, 2015 $ 13,471 $ 4,525 $ 4,586 $ 78 $ 466 $ 8,201 $ 320 $ 31,647 Charge-offs (574 ) — (54 ) — — (623 ) (19 ) (1,270 ) Recoveries 181 589 285 — 13 932 67 2,067 Provision (1) 1,373 234 424 31 58 (705 ) (70 ) 1,345 Change in FDIC indemnification asset (1) (4 ) (106 ) (31 ) — — 216 (23 ) 52 Balance June 30, 2016 $ 14,447 $ 5,242 $ 5,210 $ 109 $ 537 $ 8,021 $ 275 $ 33,841 For the six months ended June 30, 2015 Commercial real estate Commercial construction Commercial and industrial Leases Residential construction Residential mortgage Consumer and other Total (Dollars in thousands) Balance December 31, 2014 $ 12,685 $ 4,311 $ 3,226 $ 103 $ 570 $ 9,313 $ 191 $ 30,399 Charge-offs (1,560 ) (80 ) (109 ) — — (687 ) (266 ) (2,702 ) Recoveries 552 1,493 486 — 34 469 120 3,154 Provision (2) 1,345 264 (278 ) (11 ) (144 ) (912 ) 147 411 Change in FDIC indemnification asset (2) (82 ) (441 ) (70 ) — 3 (45 ) 8 (627 ) Balance June 30, 2015 $ 12,940 $ 5,547 $ 3,255 $ 92 $ 463 $ 8,138 $ 200 $ 30,635 (1) The provision for loan losses includes the "net" provision on covered loans after coverage provided by FDIC loss-share agreements, which totaled $0 and $(0.4) million for the three and six months ended June 30, 2016, respectively. For the six months ended June 30, 2016, this resulted in an increase in the FDIC indemnification asset of $0.1 million , which is the difference between the net provision on covered loans and the total reduction to the allowance for loan losses allocable to the covered loan portfolio of $0.3 million . (2) The provision for loan losses includes the "net" provision on covered loans after coverage provided by FDIC loss-share agreements, which totaled $0 and $(0.2) million for the three and six months ended June 30, 2015 , respectively. This resulted in a decrease in the FDIC indemnification asset of $0.1 million and $0.6 million , which is the difference between the net provision on covered loans and the total reduction to the allowance for loan losses allocable to the covered loan portfolio of $0.1 million and $0.8 million for the three and six months ended June 30, 2015, respectively. The following table provides a breakdown of the recorded investment in loans and the allowance for loan losses based on the method of determining the allowance: Commercial real estate Commercial construction Commercial and industrial Leases Residential construction Residential mortgage Consumer and other Total Balances at June 30, 2016: (Dollars in thousands) Specific reserves: Impaired loans $ 1,731 $ 132 $ 1,162 $ — $ — $ 1,268 $ 14 $ 4,307 Purchase credit impaired loans 916 256 61 — 1 976 2 2,212 Total specific reserves 2,647 388 1,223 — 1 2,244 16 6,519 General reserves 11,800 4,854 3,987 109 536 5,777 259 27,322 Total $ 14,447 $ 5,242 $ 5,210 $ 109 $ 537 $ 8,021 $ 275 $ 33,841 Loans: Individually evaluated for impairment $ 25,164 $ 3,212 $ 2,058 $ — $ — $ 17,865 $ 61 $ 48,360 Purchase credit impaired loans 81,009 12,603 2,280 — 167 40,853 138 137,050 Loans collectively evaluated for impairment 2,393,173 437,025 450,144 29,463 97,865 1,199,133 20,472 4,627,275 Total $ 2,499,346 $ 452,840 $ 454,482 $ 29,463 $ 98,032 $ 1,257,851 $ 20,671 $ 4,812,685 Balances at December 31, 2015: Specific reserves: Impaired loans $ 2,166 $ 182 $ 646 $ — $ 53 $ 1,562 $ 49 $ 4,658 Purchase credit impaired loans 1,176 354 47 — 5 971 6 2,559 Total specific reserves 3,342 536 693 — 58 2,533 55 7,217 General reserves 10,129 3,989 3,893 78 408 5,668 265 24,430 Total $ 13,471 $ 4,525 $ 4,586 $ 78 $ 466 $ 8,201 $ 320 $ 31,647 Loans: Individually evaluated for impairment $ 26,498 $ 3,223 $ 1,687 $ — $ 825 $ 18,158 $ 129 $ 50,520 Purchase credit impaired loans 85,213 12,497 2,717 — 709 41,336 199 142,671 Loans collectively evaluated for impairment 2,134,304 349,289 414,712 26,773 74,487 988,964 18,151 4,006,680 Total $ 2,246,015 $ 365,009 $ 419,116 $ 26,773 $ 76,021 $ 1,048,458 $ 18,479 $ 4,199,871 The following tables present information related to impaired loans, excluding purchased impaired loans: Impaired Loans - With Allowance Impaired Loans - With No Allowance Recorded Investment Unpaid Principal Balance Allowances for Loan Losses Allocated Recorded Investment Unpaid Principal Balance June 30, 2016 (Dollars in thousands) Originated: Commercial real estate $ 10,839 $ 10,789 $ 1,571 $ 12,609 $ 12,561 Commercial construction 1,300 1,297 95 1,315 1,308 Commercial and industrial 1,733 1,722 678 — — Residential mortgage 5,355 5,331 455 4,239 4,232 Consumer and other 29 29 9 — — Total originated 19,256 19,168 2,808 18,163 18,101 Acquired: Commercial real estate 1,237 1,256 160 578 580 Commercial construction 266 263 36 343 343 Commercial and industrial 331 715 485 1 — Residential mortgage 5,502 5,957 813 2,798 2,819 Consumer and other 31 35 5 — — Total acquired 7,367 8,226 1,499 3,720 3,742 Total impaired loans $ 26,623 $ 27,394 $ 4,307 $ 21,883 $ 21,843 Impaired Loans - With Allowance Impaired Loans - With No Allowance Recorded Investment Unpaid Principal Balance Allowances for Loan Losses Allocated Recorded Investment Unpaid Principal Balance December 31, 2015 (Dollars in thousands) Originated: Commercial real estate $ 11,750 $ 11,736 $ 1,990 $ 13,099 $ 13,068 Commercial construction 1,537 1,533 123 1,325 1,320 Commercial and industrial 1,459 1,451 575 — — Residential construction 343 342 42 306 306 Residential mortgage 8,159 8,141 860 2,154 2,145 Consumer and other 10 10 1 — — Total originated 23,258 23,213 3,591 16,884 16,839 Acquired: Commercial real estate 1,374 1,390 175 330 331 Commercial construction 369 370 59 — — Commercial and industrial 232 304 71 — — Residential construction 109 109 11 68 588 Residential mortgage 5,302 5,632 702 2,572 2,597 Consumer and other 119 119 49 — — Total acquired 7,505 7,924 1,067 2,970 3,516 Total impaired loans $ 30,763 $ 31,137 $ 4,658 $ 19,854 $ 20,355 The following table presents information related to the average recorded investment and interest income recognized on impaired loans, excluding purchased impaired loans: Three Months Ended June 30, Six Months Ended June 30, 2016 2015 2016 2015 Average Recorded Investment Interest Income Average Recorded Investment Interest Income Average Recorded Investment Interest Income Average Recorded Investment Interest Income Impaired loans with allowance: (Dollars in thousands) Commercial real estate $ 12,020 $ 103 $ 12,557 $ 112 $ 12,465 $ 206 $ 12,561 $ 193 Commercial construction 1,388 15 1,522 20 1,529 29 1,648 38 Commercial and industrial 1,705 34 1,447 17 1,680 61 1,440 29 Residential construction 343 4 347 4 369 5 375 7 Residential mortgage 12,200 61 5,390 44 12,723 133 7,335 59 Consumer and other 42 — 11 — 37 — 58 1 Total impaired loans with allowance $ 27,698 $ 217 $ 21,274 $ 197 $ 28,803 $ 434 $ 23,417 $ 327 Impaired loans with no allowance: Commercial real estate $ 13,434 $ 129 $ 22,370 $ 141 $ 13,619 $ 259 $ 20,839 $ 239 Commercial construction 1,893 355 2,627 15 1,815 543 2,608 30 Commercial and industrial 146 1 406 — 136 — 334 — Residential construction — — 112 — 68 — 113 — Residential mortgage 5,941 20 14,026 — 5,794 43 12,558 46 Consumer and other 20 — 81 — 20 — 81 — Total impaired loans with no allowance $ 21,434 $ 505 $ 39,622 $ 156 $ 21,452 $ 845 $ 36,533 $ 315 For the three and six months ended June 30, 2016 and 2015 , the amount of interest income recognized within the period that the loans were impaired was primarily related to loans modified as a troubled debt restructuring ("TDR") that remained on accrual status. The amount of interest income recognized using a cash-basis method of accounting during the period that the loans were impaired was not material. At June 30, 2016 and December 31, 2015, respectively, the Company had $0.6 million and $2.5 million of consumer mortgage loans secured by residential real estate properties for which foreclosure proceedings were in progress. The following tables present an aging analysis of the recorded investment in the Company's loans: Current 30-59 Days Past Due 60-89 Days Past Due Greater than 90 Days Past Due Non-Accrual Total Loans June 30, 2016 (Dollars in thousands) Originated: Commercial real estate $ 1,807,314 $ 2,919 $ — $ — $ 1,776 $ 1,812,009 Commercial construction 366,574 85 80 — 117 366,856 Commercial and industrial 333,463 220 188 — 124 333,995 Leases 29,453 — — 10 — 29,463 Residential construction 79,977 — — — — 79,977 Residential mortgage 522,443 690 53 — 3,370 526,556 Consumer and other 14,431 50 — — 20 14,501 Total originated 3,153,655 3,964 321 10 5,407 3,163,357 Acquired: Commercial real estate 681,672 433 1,556 — 3,676 687,337 Commercial construction 85,138 42 200 — 604 85,984 Commercial and industrial 119,817 244 165 — 261 120,487 Residential construction 18,055 — — — — 18,055 Residential mortgage 722,527 944 653 — 7,171 731,295 Consumer and other 6,086 23 17 — 44 6,170 Total acquired 1,633,295 1,686 2,591 — 11,756 1,649,328 Total loans $ 4,786,950 $ 5,650 $ 2,912 $ 10 $ 17,163 $ 4,812,685 Current 30-59 Days Past Due 60-89 Days Past Due Greater than 90 Days Past Due Non-Accrual Total Loans December 31, 2015 (Dollars in thousands) Originated: Commercial real estate $ 1,571,034 $ 800 $ 564 $ — $ 3,157 $ 1,575,555 Commercial construction 281,345 82 — — 164 281,591 Commercial and industrial 279,116 89 21 — 269 279,495 Leases 26,773 — — — — 26,773 Residential construction 59,631 — — — 306 59,937 Residential mortgage 480,251 1,714 203 — 2,727 484,895 Consumer and other 12,958 12 — — — 12,970 Total originated 2,711,108 2,697 788 — 6,623 2,721,216 Acquired: Commercial real estate 664,153 893 1,139 — 4,275 670,460 Commercial construction 82,994 10 20 — 394 83,418 Commercial and industrial 139,130 69 250 3 169 139,621 Residential construction 15,891 — 16 — 177 16,084 Residential mortgage 552,348 3,266 1,010 — 6,939 563,563 Consumer and other 5,295 77 5 — 132 5,509 Total acquired 1,459,811 4,315 2,440 3 12,086 1,478,655 Total loans $ 4,170,919 $ 7,012 $ 3,228 $ 3 $ 18,709 $ 4,199,871 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. The Company uses the following definitions for risk ratings: Pass - Loans classified as pass are considered to be a satisfactory credit risk and generally considered to be collectible in full. 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 uncollectable and are in the process of being charged-off, as soon as practicable, once so classified. The following tables present the recorded investment in the Company’s loans by credit quality indicator: Pass Special Mention Substandard Doubtful Loss Total June 30, 2016 (Dollars in thousands) Originated: Commercial real estate $ 1,743,190 $ 38,483 $ 30,336 $ — $ — $ 1,812,009 Commercial construction 358,028 5,813 3,015 — — 366,856 Commercial and industrial 324,462 4,391 5,142 — — 333,995 Leases 29,463 — — — — 29,463 Residential construction 79,107 870 — — — 79,977 Residential mortgage 495,854 20,598 10,104 — — 526,556 Consumer and other 14,123 349 29 — — 14,501 Total originated 3,044,227 70,504 48,626 — — 3,163,357 Acquired: Commercial real estate 622,257 29,075 35,793 211 1 687,337 Commercial construction 70,828 6,361 8,677 118 — 85,984 Commercial and industrial 111,798 3,659 5,030 — — 120,487 Residential construction 17,805 — 250 — — 18,055 Residential mortgage 675,179 35,060 20,823 233 — 731,295 Consumer and other 6,019 99 52 — — 6,170 Total acquired 1,503,886 74,254 70,625 562 1 1,649,328 Total loans $ 4,548,113 $ 144,758 $ 119,251 $ 562 $ 1 $ 4,812,685 Pass Special Mention Substandard Doubtful Loss Total December 31, 2015 (Dollars in thousands) Originated: Commercial real estate $ 1,499,554 $ 48,775 $ 27,226 $ — $ — $ 1,575,555 Commercial construction 272,960 6,434 2,197 — — 281,591 Commercial and industrial 270,116 4,855 4,524 — — 279,495 Leases 26,773 — — — — 26,773 Residential construction 59,265 24 648 — — 59,937 Residential mortgage 453,544 20,440 10,911 — — 484,895 Consumer and other 12,566 394 10 — — 12,970 Total originated 2,594,778 80,922 45,516 — — 2,721,216 Acquired: Commercial real estate 596,973 31,318 42,169 — — 670,460 Commercial construction 69,473 5,655 8,163 127 — 83,418 Commercial and industrial 127,911 3,273 8,437 — — 139,621 Residential construction 14,541 470 1,073 — — 16,084 Residential mortgage 504,836 38,763 19,716 248 — 563,563 Consumer and other 5,244 133 132 — — 5,509 Total acquired 1,318,978 79,612 79,690 375 — 1,478,655 Total loans $ 3,913,756 $ 160,534 $ 125,206 $ 375 $ — $ 4,199,871 Modifications Loan modifications are considered a TDR if concessions have been granted to borrowers that are experiencing financial difficulty. The concessions granted generally involve the modification of terms of the loan, such as changes in payment schedule or interest rate, which generally would not otherwise be considered. Restructured loans can involve loans remaining on nonaccrual, moving to nonaccrual, or continuing on accrual status, depending on the individual facts and circumstances of the borrower. Nonaccrual restructured loans are included and treated with all other nonaccrual loans. In addition, all accruing restructured loans are reported as TDRs, which are considered and accounted for as impaired loans. Generally, restructured loans remain on nonaccrual until the customer has attained a sustained period of repayment performance under the modified loan terms (generally a minimum of six months). However, performance prior to the restructuring, or significant events that coincide with the restructuring, are considered in assessing whether the borrower can meet the new terms and whether the loan should be returned to or maintained on accrual status. If the borrower’s ability to meet the revised payment schedule is not reasonably assured, the loan remains on nonaccrual status. 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 as 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: Accrual Nonaccrual Total TDRs Allowance for Loan Losses Allocated June 30, 2016 (Dollars in thousands) Commercial real estate $ 1,673 $ 434 $ 2,107 $ 172 Commercial construction 811 — 811 4 Commercial and industrial 1,127 — 1,127 615 Residential mortgage 6,218 271 6,489 391 Consumer and other 10 — 10 1 Total modifications $ 9,839 $ 705 $ 10,544 $ 1,183 Number of contracts 26 6 32 Accrual Nonaccrual Total TDRs Allowance for Loan Losses Allocated December 31, 2015 (Dollars in thousands) Commercial real estate $ 5,938 $ 720 $ 6,658 $ 331 Commercial construction 893 46 939 16 Commercial and industrial 1,186 — 1,186 484 Residential mortgage 6,691 14 6,705 1 Consumer and other 10 — 10 564 Total modifications $ 14,718 $ 780 $ 15,498 $ 1,396 Number of contracts 35 3 38 At June 30, 2016 and December 31, 2015, 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. Payment modification – A modification in which the principal and interest payment are lowered from the original contractual terms. Interest only modification – A modification in which the loan is converted to interest only payments for a period of time. Combination modification – Any other type of modification, including the use of multiple categories above. The following tables present new TDRs by modification category. All balances represent the recorded investment at the end of the period in which the modification was made. Three Months Ended June 30, 2016 Three Months Ended June 30, 2015 Term Interest Only Total Term Interest Only Total (Dollars in thousands) Commercial real estate $ — $ 261 $ 261 $ — $ 358 $ 358 Commercial and industrial 433 — 433 93 231 324 Residential mortgage — 271 271 — — — Total modifications $ 433 $ 532 $ 965 $ 93 $ 589 $ 682 Six Months Ended June 30, 2016 Six Months Ended June 30, 2015 Term Payment Interest Only Total Term Payment Interest Only Combination Total (Dollars in thousands) Commercial real estate $ — $ 314 $ 261 $ 575 $ 417 $ — $ 358 $ 863 $ 1,638 Commercial and industrial 433 — — 433 93 419 231 — 743 Residential mortgage — — 271 271 — — — — — Total modifications $ 433 $ 314 $ 532 $ 1,279 $ 510 $ 419 $ 589 $ 863 $ 2,381 No loans modified and classified as TDRs in the previous twelve months defaulted during the three and six months ended June 30, 2016, while loans modified and classified as TDRs in the previous twelve months and defaulted during the three and six months ended June 30, 2015 were immaterial. The Company defines payment default as movement of the restructuring to nonaccrual status, foreclosure or charge-off, whichever occurs first. Loans Held for Sale The Company originates certain single family, residential first mortgage loans for sale on a presold basis. Loan sale activity is summarized below: Three Months Ended June 30, Six Months Ended June 30, 2016 2015 2016 2015 (Dollars in thousands) Loans held for sale at period end $ 41,703 $ 36,315 $ 41,703 $ 36,315 Proceeds from sales of mortgage loans originated for sale 91,357 86,049 175,445 175,971 Gain on sales of mortgage loans originated for sale 2,444 2,562 4,987 4,930

Derivatives

Derivatives	6 Months Ended
	Jun. 30, 2016
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. The Company entered into an interest rate swap transaction with a notional amount of $125 million . The interest rate swap was designated as a hedge against 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. The Company receives interest at the one-month LIBOR rate and pays a fixed interest rate under the terms of the swap agreement. The termination date of the swap agreement is March 18, 2019 . Derivatives Not Designated as Hedges The Company utilizes derivative financial instruments, which may include 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. The following table presents the fair value of the Company’s derivatives: June 30, 2016 December 31, 2015 Notional Amount Balance Sheet Location Fair Value Notional Amount Balance Sheet Location Fair Value Derivative assets: (Dollars in thousands) Derivatives not designated as hedging instruments: Interest rate swaps $ 68,438 Other assets $ 2,753 $ 63,320 Other assets $ 1,332 Derivative liabilities: Derivatives designated as hedging instruments: Interest rate swap $ 125,000 Accrued expenses and other liabilities $ 3,057 $ 125,000 Accrued expenses and other liabilities $ 1,085 Derivatives not designated as hedging instruments: Interest rate swaps $ 68,438 Accrued expenses and other liabilities $ 2,753 $ 63,320 Accrued expenses and other liabilities $ 1,332 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 sheets is presented in the following table: Gross Amounts Not Offset in the Consolidated Balance Sheets Gross Amount Recognized Gross Amounts Offset in the Consolidated Balance Sheets Net Amounts Presented in the Consolidated Balance Sheets Financial Instruments Collateral Held/Pledged Net June 30, 2016 (Dollars in thousands) Derivative assets $ 2,753 $ — $ 2,753 $ — $ — $ 2,753 Derivative liabilities 5,810 — 5,810 — 5,810 — Total derivative instruments $ 8,563 $ — $ 8,563 $ — $ 5,810 $ 2,753 December 31, 2015 Derivative assets $ 1,332 $ — $ 1,332 $ — $ — $ 1,332 Derivative liabilities 2,417 — 2,417 — 2,417 — Total derivative instruments $ 3,749 $ — $ 3,749 $ — $ 2,417 $ 1,332 The Company has recorded a loss of $1.9 million , net of tax, as component of accumulated other comprehensive income at June 30, 2016 associated with the cash flow hedging instrument and expects $1.3 million , net of tax, to be reclassified as an increase to interest expense during the next 12 months. The following table presents the amounts recorded in the Consolidated Statements of Comprehensive Income relating to derivative instruments designated as cash flow hedges, net of tax: Three Months Ended June 30, Six Months Ended June 30, 2016 2015 2016 2015 (Dollars in thousands) Amount of net (losses) gains recorded in OCI (effective portion) $ (226 ) $ 348 $ (1,242 ) $ (468 ) No amount of net losses were reclassified to earnings during the three and six months ended June 30, 2016 and 2015, respectively. The amounts included in accumulated other comprehensive income will be reclassified to interest expense should the hedge no longer be considered effective. No amount of ineffectiveness was included in net income for the three and six months ended June 30, 2016 and 2015 , respectively. The Company will continue to assess the effectiveness of the hedge 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. At June 30, 2016 , the aggregate fair value of derivative instruments with credit-risk-related contingent features that were in a net liability position was $5.8 million , for which the Company has posted collateral with a fair value of $8.6 million .

Borrowings

Borrowings	6 Months Ended
	Jun. 30, 2016
Debt Disclosure [Abstract]
Borrowings	BORROWINGS The following table presents the Company’s short-term borrowings: June 30, 2016 December 31, 2015 (Dollars in thousands) Repurchase agreements (1) $ 66,491 $ 64,373 Federal funds purchased 24,845 19,839 Advances from FHLB 15,000 4,000 Revolving credit facility — 15,000 Total short-term borrowings $ 106,336 $ 103,212 (1) 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 $115.0 million at June 30, 2016. 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. The Company has an uncollateralized 364 -day revolving credit facility (the “Credit Agreement”) for an aggregate principal amount of up to $25 million at any time outstanding. The Credit Agreement matures on November 12, 2016 with an interest rate the greater of i) 3.25% , ii) the Prime Rate, or iii) the Federal Funds rate, plus 0.50% . There were no borrowings outstanding under the Credit Agreement at June 30, 2016. The following table presents the Company’s long-term debt: June 30, 2016 December 31, 2015 (Dollars in thousands) Advances from FHLB, net (1) $ 130,856 $ 81,371 Subordinated notes, net (1) 70,719 70,790 Junior subordinated debentures, net (1) 44,208 36,190 Total long-term debt $ 245,783 $ 188,351 (1) Long-term debt balances are presented net of debt issuance costs and unamortized premiums or discounts. The advances from the FHLB have been made against a $1.11 billion line of credit secured by real estate loans and investment securities with carrying values of $1.54 billion and $3.6 million , respectively, at June 30, 2016. The Company has $127.0 million of long-term advances outstanding as of June 30, 2016, with maturity dates ranging from 2017 to 2021 and an average interest rate of 1.94% . The net unamortized premium of $3.9 million at June 30, 2016 is being amortized using a level-yield methodology over the estimated holding period. On September 30, 2014, the Parent Company issued $60.0 million of 5.5% Fixed to Floating Rate Subordinated Notes (the "Subordinated Notes"), all of which are outstanding at June 30, 2016. The Subordinated Notes bear interest at a fixed rate of 5.5% per year for the first 5 years and, from October 1, 2019 to the October 1, 2024 maturity date, the interest rate will reset quarterly to an annual interest rate equal to the then current three-month LIBOR plus 359 basis points. The Subordinated Notes are redeemable by the Parent Company at any quarterly interest payment date beginning on October 1, 2019 to maturity at par, plus accrued and unpaid interest. The Company assumed a junior subordinated note in conjunction with the Valley acquisition with an outstanding balance of $10.7 million at June 30, 2016. The junior subordinated note bears interest at a variable rate of LIBOR plus 5.00% per annum, with a floor of 5.50% and a cap of 9.50% , and has a maturity date of October 15, 2023. The interest rate for the subordinated note was 5.50% at June 30, 2016. 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 June 30, 2016 , commercial loans and investment securities with carrying values of $485.9 million and $2.4 million , respectively, were assigned under these arrangements. At June 30, 2016, the Company had approximately $293.8 million in borrowing capacity available under these arrangements with no outstanding balance due. The following table details the junior subordinated debentures outstanding: Shares issued Interest rate Maturity date June 30, 2016 December 31, (Dollars in thousands) BNC Bancorp Capital Trust I 5,000 LIBOR plus 3.25% 4/15/2033 $ 5,155 $ 5,155 BNC Bancorp Capital Trust II 6,000 LIBOR plus 2.80% 4/7/2034 6,186 6,186 BNC Capital Trust III 5,000 LIBOR plus 2.40% 9/23/2034 5,155 5,155 BNC Capital Trust IV 7,000 LIBOR plus 1.70% 12/31/2036 7,217 7,217 Southcoast Capital Trust III 10,000 LIBOR plus 0.60% 9/30/2035 10,310 — Valley Financial (VA) Statutory Trust I 4,000 LIBOR plus 3.10% 6/26/2033 4,124 4,124 Valley Financial (VA) Statutory Trust II 7,000 LIBOR plus 1.70% 12/15/2035 7,217 7,217 Valley Financial Statutory Trust III 5,000 LIBOR plus 1.70% 1/30/2037 5,155 5,155 50,519 40,209 Unamortized discount 6,130 3,833 Unamortized debt issuance costs 181 186 $ 44,208 $ 36,190 The Company was not aware of any violations of loan covenants at June 30, 2016.

Accumulated Other Comprehensive

Accumulated Other Comprehensive Income	6 Months Ended
	Jun. 30, 2016
Accumulated Other Comprehensive Income [Abstract]
Accumulated Other Comprehensive Income	ACCUMULATED OTHER COMPREHENSIVE INCOME The following table presents the changes in accumulated other comprehensive income, net of taxes: Unrealized Holding Gains (Losses) on Investment Securities Available-For-Sale 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 (Dollars in thousands) Balance at March 31, 2016 $ 4,619 $ 2,477 $ (1,701 ) $ 5,395 Other comprehensive income (loss) before reclassifications 1,772 — (226 ) 1,546 Reclassifications from accumulated other comprehensive income (3 ) (177 ) — (180 ) Net current period other comprehensive income (loss) 1,769 (177 ) (226 ) 1,366 Balance at June 30, 2016 $ 6,388 $ 2,300 $ (1,927 ) $ 6,761 Balance at March 31, 2015 $ 7,912 $ 3,187 $ (1,012 ) $ 10,087 Other comprehensive income (loss) before reclassifications (1,947 ) — 348 (1,599 ) Reclassifications from accumulated other comprehensive income 3 (123 ) — (120 ) Net current period other comprehensive (loss) income (1,944 ) (123 ) 348 (1,719 ) Balance at June 30, 2015 $ 5,968 $ 3,064 $ (664 ) $ 8,368 Unrealized Holding Gains (Losses) on Investment Securities Available-For-Sale 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 (Dollars in thousands) Balance at December 31, 2015 $ 5,227 $ 2,787 $ (685 ) $ 7,329 Other comprehensive income (loss) before reclassifications 1,139 — (1,242 ) (103 ) Reclassifications from accumulated other comprehensive income 22 (487 ) — (465 ) Net current period other comprehensive income (loss) 1,161 (487 ) (1,242 ) (568 ) Balance at June 30, 2016 $ 6,388 $ 2,300 $ (1,927 ) $ 6,761 Balance at December 31, 2014 $ 7,089 $ 3,289 $ (196 ) $ 10,182 Other comprehensive loss before reclassifications (1,093 ) — (468 ) (1,561 ) Reclassifications from accumulated other comprehensive income (28 ) (225 ) — (253 ) Net current period other comprehensive loss (1,121 ) (225 ) (468 ) (1,814 ) Balance at June 30, 2015 $ 5,968 $ 3,064 $ (664 ) $ 8,368 The following table details reclassification adjustments from accumulated other comprehensive income: Three Months Ended June 30, Six Months Ended June 30, Component of Accumulated Other Comprehensive Income 2016 2015 2016 2015 Affected Line Item in the Consolidated Statement of Income (Dollars in thousands) Unrealized holding gains (losses) on investment securities available-for-sale $ 4 $ (4 ) $ (35 ) $ 45 Gain (loss) on sale of investment securities, net (1 ) 1 13 (17 ) Income tax expense 3 (3 ) (22 ) 28 Total, net of tax Unrealized holding gains on investment securities transferred from available-for-sale to held-to-maturity (1) 280 195 772 357 Interest income - investment securities (103 ) (72 ) (285 ) (132 ) Income tax expense 177 123 487 225 Total, net of tax Total reclassifications for the period $ 180 $ 120 $ 465 $ 253 (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	6 Months Ended
	Jun. 30, 2016
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 at 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 –At June 30, 2016, the Company transferred $5.4 million of equity securities available-for-sale from Level 2 of the fair value hierarchy to Level 1, as the Company concluded the trading volume for these securities has increased and the Company believes there is now an active market for determining the fair value of identical securities. The Company now classifies the entire equity securities portfolio 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: Total Measured at Fair Value Fair Value Measured Using Description Level 1 Level 2 Level 3 June 30, 2016 (Dollars in thousands) Assets: Investment securities available-for-sale: U.S. Government agencies $ 11,815 $ — $ 11,815 $ — State and municipals 180,890 — 180,890 — Corporate debt securities 49,990 — 49,990 — Asset backed securities 164,301 — 164,301 — Equity securities 15,327 15,327 — — Mortgage-backed securities: Residential government sponsored 115,970 — 115,970 — Other government sponsored 1,488 — 1,488 — Total investment securities available-for-sale 539,781 15,327 524,454 — Derivative instruments: Interest rate swaps - not designated 2,753 — 2,753 — Total derivative instruments 2,753 — 2,753 — Total assets measured at fair value on a recurring basis $ 542,534 $ 15,327 $ 527,207 $ — Liabilities: Interest rate swap - cash flow hedge $ 3,057 $ — $ 3,057 $ — Interest rate swaps - not designated 2,753 — 2,753 — Total liabilities measured at fair value on a recurring basis $ 5,810 $ — $ 5,810 $ — Total Measured at Fair Value Fair Value Measured Using Description Level 1 Level 2 Level 3 December 31, 2015 (Dollars in thousands) Assets: Investment securities available-for-sale: U.S. Government agencies $ 12,327 $ — $ 12,327 $ — State and municipals 180,618 — 180,618 — Corporate debt securities 47,703 — 47,703 — Other debt securities 138,747 — 138,747 — Equity securities 11,273 637 10,636 — Mortgage-backed securities: Residential government sponsored 97,777 — 97,777 — Other government sponsored 1,695 — 1,695 — Total investment securities available-for-sale 490,140 637 489,503 — Derivative instruments: Interest rate swap - not designated 1,332 — 1,332 — Total derivative instruments 1,332 — 1,332 — Total assets measured at fair value on a recurring basis $ 491,472 $ 637 $ 490,835 $ — Liabilities: Interest rate swap - cash flow hedge $ 1,085 $ — $ 1,085 $ — Interest rate swap - not designated 1,332 — 1,332 — Total liabilities measured at fair value on a recurring basis $ 2,417 $ — $ 2,417 $ — 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 TDR 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. OREO – OREO is initially recorded at the lower of carrying value or fair value, less costs to sell. 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: Total Measured at Fair Value Fair Value Measured Using Description Level 1 Level 2 Level 3 June 30, 2016 (Dollars in thousands) Loans held for sale $ 41,703 $ — $ 41,703 $ — Impaired loans 178,891 — — 178,891 OREO 30,514 — — 30,514 Total assets measured at fair value on a nonrecurring basis $ 251,108 $ — $ 41,703 $ 209,405 December 31, 2015 Loans held for sale $ 39,470 $ — $ 39,470 $ — Impaired loans 185,974 — — 185,974 OREO 32,561 — — 32,561 Total assets measured at fair value on a nonrecurring basis $ 258,005 $ — $ 39,470 $ 218,535 The following table presents the valuation and unobservable inputs for Level 3 assets and liabilities measured at fair value on a nonrecurring basis at June 30, 2016: Description Fair Value (in thousands) Valuation Methodology Unobservable Inputs Range of Inputs Impaired loans $ 178,891 Appraised value Discount to reflect current market conditions and ultimate collectability 0% - 20% OREO 30,514 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: Carrying Value Fair Value Level 1 Level 2 Level 3 June 30, 2016 (Dollars in thousands) Financial assets: Cash and cash equivalents $ 192,390 $ 192,390 $ 192,390 $ — $ — Investment securities available-for-sale 539,781 539,781 15,327 524,454 — Investment securities held-to-maturity 263,277 272,817 — 272,817 — Federal Home Loan Bank stock 11,582 11,582 — 11,582 — Loans held for sale 41,703 41,703 — 41,703 — Loans receivable, net 4,778,844 4,812,508 — 4,633,617 178,891 Accrued interest receivable 19,581 19,581 — 19,581 — Investment in bank-owned life insurance 172,502 172,502 — 172,502 — Interest rate swaps - not designated 2,753 2,753 — 2,753 — Financial liabilities: Demand deposits and savings $ 3,541,989 $ 3,541,989 $ — $ 3,541,989 $ — Time deposits 1,814,654 1,819,646 — 1,819,646 — Short-term borrowings 106,336 106,336 — 106,336 — Long-term debt 245,783 239,575 — 239,575 — Accrued interest payable 2,298 2,298 — 2,298 — Interest rate swap - cash flow hedge 3,057 3,057 — 3,057 — Interest rate swaps - not designated 2,753 2,753 — 2,753 — Carrying Value Fair Value Level 1 Level 2 Level 3 December 31, 2015 (Dollars in thousands) Financial assets: Cash and cash equivalents $ 204,238 $ 204,238 $ 204,238 $ — $ — Investment securities available-for-sale 490,140 490,140 637 489,503 — Investment securities held-to-maturity 244,417 249,679 — 249,679 — Federal Home Loan Bank stock 8,171 8,171 — 8,171 — Loans held for sale 39,470 39,470 — 39,470 — Loans receivable, net 4,168,224 4,228,455 — 4,042,481 185,974 Accrued interest receivable 18,055 18,055 — 18,055 — FDIC indemnification asset 1,909 1,909 — — 1,909 Investment in bank-owned life insurance 116,806 116,806 — 116,806 — Interest rate swaps - not designated 1,332 1,332 — 1,332 — Financial liabilities: Demand deposits and savings $ 3,143,369 $ 3,143,369 $ — $ 3,143,369 $ — Time deposits 1,598,838 1,611,707 — 1,611,707 — Short-term borrowings 103,212 103,212 — 103,212 — Long-term debt 189,578 184,289 — 184,289 — Accrued interest payable 2,002 2,002 — 2,002 — Interest rate swap - cash flow hedge 1,085 1,085 — 1,085 — Interest rate swaps - not designated 1,332 1,332 — 1,332 — 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.

Commitments and Contingencies

Commitments and Contingencies	6 Months Ended
	Jun. 30, 2016
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. The following table presents the outstanding off-balance sheet financial instruments whose contract amounts represent potential credit risk: June 30, 2016 December 31, 2015 (Dollars in thousands) Commitments under unfunded loans and lines of credit $ 1,215,927 $ 1,010,497 Letters of credit 14,595 14,213 We invest as a limited partner in partnerships that operate qualified affordable housing or invest in emerging companies in our geographic region. These limited partnership structures are considered to be variable interest entities ("VIEs") because the limited partners with equity at risk do not have substantive kick-out rights through voting rights or substantive participating rights over the general partner. As a limited partner, we are not the primary beneficiary of the VIEs and do not consolidate them. Our investments in these partnerships are recorded in other assets on the Consolidated Balance Sheets. The Company has committed to invest up to $10.8 million in these VIEs, of which $6.6 million was unfunded at June 30, 2016. At June 30, 2016, our maximum exposure to loss is our $4.2 million recorded investment. 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.

Employee Benefits

Employee Benefits	6 Months Ended
	Jun. 30, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Employee Benefits	EMPLOYEE BENEFITS The Compensation Committee of the Company's Board of Directors may grant or award eligible participants stock options, restricted stock, restricted stock units, stock appreciation rights, and other stock-based awards or any combination of awards (collectively referred to herein as “Rights”). At June 30, 2016, the Company had Rights outstanding from the 2006 BNC Bancorp Omnibus Stock Ownership and Long Term Incentive Plan (the "2006 Omnibus Plan"), the BNC Bancorp 2013 Omnibus Stock Incentive Plan (the "2013 Omnibus Plan") and the KeySource Non-Statutory and Incentive Stock Option plans (the "KeySource Plans"). The 2013 Omnibus Plan and the KeySource Plans are the only plans that are available for future grants. The Company had 118,000 Rights issued under the 2006 Omnibus Plan, 410,393 Rights issued and 813,705 Rights available for grants or awards under the 2013 Omnibus Plan, and 56,537 stock options issued and 35,607 stock options available for issuance related to the KeySource 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. A summary of the Company’s stock option activity for the six months ended June 30, 2016 is presented below: Shares Weighted Average Exercise Price per Share Weighted Average Remaining Contractual Term (Years) Aggregate Intrinsic Value (Dollars in thousands, except per share amounts) Outstanding at December 31, 2015 152,571 $ 9.69 Issued — — Exercised 41,171 10.00 Forfeited or expired — — Outstanding at June 30, 2016 111,400 9.58 2.35 $ 1,463 Exercisable at June 30, 2016 111,400 9.58 2.35 1,463 The related compensation expense recognized for stock options, the intrinsic value of stock option exercised and the grant-date fair value of options that vested was immaterial for the six months ended June 30, 2016 and 2015, respectively. Restricted Stock Awards. A summary of the activity of the Company’s unvested restricted stock awards for the six months ended June 30, 2016 is presented below: Number of Shares Weighted Average Grant-Date Fair Value per Share Unvested at December 31, 2015 516,088 $ 15.78 Granted 61,265 20.95 Vested (102,321 ) 13.49 Forfeited (2,500 ) 19.33 Unvested at June 30, 2016 472,532 $ 16.93 The Company measures the fair value of restricted shares based on the price of the Company's common stock on the grant date, and compensation expense is recorded over the vesting period. The Company recognized compensation expense of $1.5 million and $1.3 million for restricted stock awards for the six months ended June 30, 2016 and 2015 , respectively. At June 30, 2016 , there was $5.7 million of total unrecognized compensation cost related to unvested restricted stock granted under the plans. That cost is expected to be recognized over a weighted average period of 2.03 years . The grant-date fair value of restricted stock grants vested was $1.4 million and $1.3 million during the six months ended June 30, 2016 and 2015, respectively.

Subsequent Event

Subsequent Event	6 Months Ended
	Jun. 30, 2016
Subsequent Event [Abstract]
Subsequent Events	On July 26, 2016, the Company completed the issuance and sale of 2.9 million shares of voting common stock, which yielded net proceeds of $59.6 million . The Company intends to use the net proceeds of this offering for general corporate purposes, including contributing capital to the Bank to maintain or increase regulatory capital levels or support growth in its lending and deposit-gathering activities, financing expansion of BNC's branch system and acquiring other financial institutions, or branches thereof, or businesses engaged in activities that BNC believes could complement its banking business and provide additional sources of non-interest income.

Basis of Presentation (Policies

Basis of Presentation (Policies)	6 Months Ended
	Jun. 30, 2016
Accounting Policies [Abstract]
Basis of Presentation	These consolidated financial statements and notes are presented in accordance with the instructions for Form 10-Q and, therefore, do not include all information and notes necessary for a complete presentation of financial position, results of operations and cash flow activity required in accordance with accounting principles generally accepted in the United States of America (“GAAP”). In the opinion of management, all normal recurring adjustments necessary for a fair statement of the consolidated financial position and consolidated results of operations have been made. The information contained in the consolidated financial statements and footnotes included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2015 should be referred to in connection with these unaudited interim consolidated financial statements.
Use of Estimates	The preparation of consolidated financial statements in conformity with 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.
Recently Adopted and Issued Accounting Standards	Recently Adopted and Issued Accounting Standards In June 2016, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update (“ASU”) No. 2016-13, Financial Instruments-Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments . The ASU requires an organization to measure all expected credit losses for financial assets held at the reporting date based on historical experience, current conditions, and reasonable and supportable forecasts. Financial institutions and other organizations will now use forward-looking information to better inform their credit loss estimates. Many of the loss estimation techniques applied today will still be permitted, although the inputs to those techniques will change to reflect the full amount of expected credit losses. Organizations will continue to use judgment to determine which loss estimation method is appropriate for their circumstances. Additionally, the ASU amends the accounting for credit losses on available-for-sale debt securities and purchased financial assets with credit deterioration. For public companies, this ASU will be effective for interim and annual periods beginning after December 15, 2019. The Company is currently evaluating the impact the adoption of this ASU will have on its consolidated financial statements. In March 2016, the FASB issued ASU 2016-09, Compensation-Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting , which simplifies several aspects of the accounting for share-based payment award transactions including the income tax consequences, the classification of awards as either equity or liabilities, and the classification on the statement of cash flows. ASU 2016-09 is effective for fiscal years beginning after December 15, 2016 and interim periods within those annual periods. Early adoption is permitted. The Company elected to early adopt ASU 2016-09 in the second quarter of 2016 with an effective date of January 1, 2016. As a result of the adoption, the Company recognized excess tax benefits in the Consolidated Statements of Income and the Consolidated Statements of Cash Flows of $0.2 million for the three and six months ended June 30, 2016, respectively. Prior periods have not been adjusted. In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842) , which will require lessees to recorded as an asset on the balance sheet for the right to use the leased asset and a liability for the corresponding lease obligation for leases with terms of more than 12 months. The accounting treatment for lessors will remain relatively unchanged. The ASU also requires additional qualitative and quantitative disclosures related to the nature, timing and uncertainty of cash flows arising from leases. ASU 2016-02 is effective for fiscal years beginning after December 15, 2018, and interim periods within those fiscal years. Early adoption is permitted. The Company is currently evaluating the impact the adoption of this ASU will have on its consolidated financial statements. In January 2016, the FASB issued ASU 2016-01, Recognition and Measurement of Financial Assets and Financial Liabilities , which revises the accounting treatment related to classification and measurement of investments in equity securities and the presentation of certain fair value changes for financial liabilities measured as fair value. Upon adoption, investments in equity securities, except those accounted for under the equity method or that result in the consolidation of the investee, will be measured at fair value with changes in fair value recognized in net income. Equity investments that do not have a readily determinable fair value may be measured at cost minus impairment, plus or minus changes from observable price changes in an orderly transaction. ASU 2016-01 is effective for fiscal years beginning after December 15, 2017, and interim periods within those fiscal years. Early adoption of certain provisions is permitted. The Company does not expect the adoption of this ASU to have a material impact on its consolidated financial statements. In September 2015, the FASB issued ASU 2015-16, Simplifying the Accounting for Measurement-Period Adjustments (Topic 805) , which eliminates the requirement that an acquirer in a business combination account for measurement-period adjustments retrospectively. Instead, an acquirer will recognize measurement period adjustments during the period in which it determines the amount of the adjustment. ASU 2015-16 is effective for fiscal years beginning after December 15, 2015, and interim periods within those fiscal years. Early adoption is permitted. The Company adopted ASU 2015-16 on January 1, 2016 and the adoption did not have a material impact on the Company's consolidated financial statements. In April 2015, the FASB issued ASU 2015-03, Simplifying the Presentation of Debt Issuance Costs (Subtopic 835-30) , which amends the presentation of debt issuance costs in the balance sheet as a direct deduction from the related debt liability. This update affects disclosures related to debt issuance costs but does not affect existing recognition and measurement guidance for these items. ASU 2015-03 is effective for annual and interim periods beginning after December 15, 2015. Prior to the adoption of ASU 2015-03 on January 1, 2016, the Company recorded debt issuance costs as other assets in the consolidated balance sheet. The Consolidated Balance Sheet as of December 31, 2015 reflects a reduction in other assets and long-term debt of $1.2 million related to the reclassification of debt issuance costs. In February 2015, the FASB issued ASU 2015-02, Amendments to the Consolidation Analysis (Topic 810) , which amends the consolidation analysis required under GAAP. The revised guidance amends the consolidation analysis based on certain fee arrangements or relationships to the reporting entity and, for limited partnerships, requires entities to consider the limited partner’s rights relative to the general partner. ASU 2015-02 is effective for annual and interim periods beginning after December 15, 2015. The Company adopted ASU 2015-02 on January 1, 2016 and the adoption did not have a material impact on the Company's consolidated financial statements. In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606) . This ASU was developed as a joint project with the International Accounting Standards Board to remove inconsistencies in revenue requirements and provide a more robust framework for addressing revenue issues. The ASU’s core principle is that an entity should recognize revenue when it transfers promised goods or services to customers in an amount that reflects the consideration to which an entity expects to be entitled in exchange for those goods or services. In August 2015, the FASB issued ASU No. 2015-14, which deferred the effective date by one year (i.e., interim and annual reporting periods beginning after December 15, 2017). Early adoption is permitted, but not before the original effective date (i.e., interim and annual reporting periods beginning after December 15, 2016). The ASU may be adopted using either a modified retrospective method or a full retrospective method. The Company is currently evaluating the impact the adoption of this ASU will have on its consolidated financial statements.

Acquisitions (Tables)

Acquisitions (Tables)	6 Months Ended
	Jun. 30, 2016
Southcoast Financial Corporation
Business Acquisition [Line Items]
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed	A summary of the fair value of assets received and liabilities assumed are as follows: As Recorded by Southcoast Fair Value Adjustments As Recorded by BNC Assets (Dollars in thousands) Cash $ 24,019 $ — $ 24,019 Investment securities available-for-sale 30,607 (1,094 ) (1) 29,513 Loans 365,232 (9,233 ) (2) 355,999 Premises and equipment 19,585 2,304 (3) 21,889 Other real estate owned 306 — 306 Core deposit intangible — 3,058 (4) 3,058 Other assets 23,082 845 (5) 23,927 Total assets acquired 462,831 (4,120 ) 458,711 Liabilities Deposits (335,924 ) (175 ) (6) (336,099 ) Borrowings (69,300 ) (1,255 ) (7) (70,555 ) Other liabilities (4,789 ) (91 ) (8) (4,880 ) Total liabilities assumed (410,013 ) (1,521 ) (411,534 ) Net assets acquired $ 52,818 $ (5,641 ) 47,177 Total consideration paid 98,970 Goodwill $ 51,793 Explanation of fair value adjustments: (1) Adjustment to reflect estimated fair value of investment securities available-for-sale. (2) Adjustment to reflect estimated fair value of loans. (3) Adjustment to reflect estimated fair value of premises and equipment. (4) Adjustment to reflect recording of core deposit intangible. (5) Adjustment to reflect recording of deferred tax asset recognized from acquisition. (6) Adjustment to reflect estimated fair value of time deposits based on market rates for similar products. (7) Adjustment to reflect estimated fair value of borrowings based on market rates for similar products. (8) Adjustment to reflect the estimated fair market value of certain leases and other assumed liabilities. A summary of the consideration paid is as follows: (Dollars in thousands) Common stock issued (4,310,445 shares) $ 98,968 Cash payments to common shareholders 2 Total consideration paid $ 98,970
Business Acquisition, Pro Forma Information	The following table presents unaudited pro-forma information as if the acquisition of Southcoast had occurred on January 1, 2016 under the “Pro-forma” columns. In addition, the following table presents unaudited pro-forma information as if the acquisition of Southcoast and Valley Financial Corporation ("Valley") had occurred on January 1, 2015 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 and is based on our historical results for the periods presented. Transaction-related costs related to each 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 acquired Valley or Southcoast at the beginning of 2016 or 2015. Cost savings are also not reflected in the unaudited pro-forma amounts. Due to the timing of the Southcoast acquisition, the financial performance of the former Southcoast operations included in our Consolidated Statements of Income from the date of acquisition through June 30, 2016 was immaterial. Pro-forma for Six Months Ended June 30, 2016 2015 (Dollars in thousands, except per share data) Net interest income $ 106,078 $ 101,632 Non-interest income 18,130 19,610 Net income 34,039 21,739 Pro-forma earnings per share: Basic $ 0.75 $ 0.51 Diluted $ 0.75 $ 0.51
CertusBank, N.A.
Business Acquisition [Line Items]
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed	A summary of the fair value of assets received and liabilities assumed are as follows: As Recorded by Certus Fair Value Adjustments As Recorded by BNC Assets (Dollars in thousands) Cash $ 1,297 $ — $ 1,297 Loans 186,354 (3,283 ) (1) 183,071 Premises and equipment 8,542 698 (2) 9,240 Accrued interest receivable 443 — 443 Core deposit intangible — 1,348 (3) 1,348 Other assets 11 734 (4) 745 Total assets acquired 196,647 (503 ) 196,144 Liabilities Deposits (175,783 ) (260 ) (5 ) (176,043 ) Other liabilities (119 ) (487 ) (6 ) (606 ) Total liabilities assumed (175,902 ) (747 ) (176,649 ) Net assets acquired $ 20,745 $ (1,250 ) 19,495 Cash consideration paid 25,692 Goodwill $ 6,197 Explanation of fair value adjustments: (1) Adjustment to reflect estimated fair value of loans. (2) Adjustment to reflect estimated fair value of premises and equipment. (3) Adjustment to reflect recording of core deposit intangible. (4) Adjustment to reflect recording of deferred tax asset recognized from acquisition. (5) Adjustment to reflect estimated fair value of time deposits based on market rates for similar products. (6) Adjustment to reflect the estimated fair market value of certain leases.
Valley Financial Corporation
Business Acquisition [Line Items]
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed	A summary of assets received and liabilities assumed for Valley, as well as the associated fair value adjustments, are as follows: As Recorded by Valley Fair Value Adjustments Recast Adjustments As Recorded by BNC Assets (Dollars in thousands) Cash and due from banks $ 13,263 $ — $ — $ 13,263 Investment securities available-for-sale 152,125 (796 ) (1) — 151,329 Federal Home Loan Bank stock, at cost 4,338 — — 4,338 Loans 624,006 (15,973 ) (2) (616 ) 607,417 Premises and equipment 8,934 892 (3) — 9,826 Accrued interest receivable 2,263 — — 2,263 Other real estate owned 8,114 — (900 ) 7,214 Core deposit intangible — 6,964 (4) — 6,964 Other assets 31,297 3,641 (5) (225 ) 34,713 Total assets acquired 844,340 (5,272 ) (1,741 ) 837,327 Liabilities Deposits (646,053 ) $ (1,086 ) (6) — (647,139 ) Borrowings (141,087 ) 548 (7) — (140,539 ) Other liabilities (972 ) (458 ) (8) — (1,430 ) Total liabilities assumed (788,112 ) (996 ) — (789,108 ) Net assets acquired $ 56,228 $ (6,268 ) $ (1,741 ) 48,219 Total consideration paid 108,700 Goodwill $ 60,481 Explanation of fair value adjustments: (1) Adjustment to reflect estimated fair value of investment securities available-for-sale. (2) Adjustment to reflect estimated fair value of loans. (3) Adjustment to reflect estimated fair value of premises and equipment. (4) Adjustment to reflect recording of core deposit intangible. (5) Adjustment to reflect recording of deferred tax asset recognized from acquisition. (6) Adjustment to reflect estimated fair value of time deposits based on market rates for similar products. (7) Adjustment to reflect estimated fair value of borrowings based on market rates for similar products. (8) Adjustment to reflect the estimated fair market value of certain leases. A summary of the consideration paid is as follows: (Dollars in thousands) Common stock issued (5,500,697 shares) $ 107,924 Fair value of Valley stock options assumed 773 Cash payments to common shareholders 3 Total consideration paid $ 108,700

Earnings Per Share (Tables)

Earnings Per Share (Tables)	6 Months Ended
	Jun. 30, 2016
Earnings Per Share [Abstract]
Schedule of Earnings Per Share, Basic and Diluted	The Company's basic and diluted earnings per share calculations are presented in the following table: For the Three Months Ended June 30, For the Six Months Ended June 30, 2016 2015 2016 2015 (Dollars in thousands, except per share amounts) Net income $ 14,647 $ 11,014 $ 29,082 $ 19,772 Weighted average common shares - basic 41,468,918 32,585,419 41,129,258 32,632,858 Add: Effect of dilutive Stock Rights 91,079 67,540 99,884 71,222 Weighted average common shares - diluted 41,559,997 32,652,959 41,229,142 32,704,080 Basic earnings per common share $ 0.35 $ 0.34 $ 0.71 $ 0.61 Diluted earnings per common share $ 0.35 $ 0.34 $ 0.71 $ 0.60

Investment Securities (Tables)

Investment Securities (Tables)	6 Months Ended
	Jun. 30, 2016
Investments, Debt and Equity Securities [Abstract]
Marketable Securities	The amortized cost, gross unrealized gains and losses, and estimated fair values of investment securities are presented in the following tables: Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value June 30, 2016 (Dollars in thousands) Available-for-sale: U.S. Government agencies $ 11,284 $ 531 $ — $ 11,815 State and municipals 169,122 11,769 1 180,890 Corporate debt securities 51,714 253 1,977 49,990 Asset-backed debt securities 166,167 243 2,109 164,301 Equity securities 15,518 236 427 15,327 Mortgage-backed securities: Residential government sponsored 114,405 1,703 138 115,970 Other government sponsored 1,432 56 — 1,488 $ 529,642 $ 14,791 $ 4,652 $ 539,781 Held-to-maturity: State and municipals $ 244,277 $ 10,251 $ 158 $ 254,370 Corporate debt securities 19,000 527 1,080 18,447 $ 263,277 $ 10,778 $ 1,238 $ 272,817 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value December 31, 2015 (Dollars in thousands) Available-for-sale: U.S. Government agencies $ 12,025 $ 302 $ — $ 12,327 State and municipals 169,907 10,711 — 180,618 Corporate debt securities 48,392 — 689 47,703 Asset-backed debt securities 140,773 15 2,041 138,747 Equity securities 11,520 270 517 11,273 Mortgage-backed securities: Residential government sponsored 97,611 562 396 97,777 Other government sponsored 1,616 79 — 1,695 $ 481,844 $ 11,939 $ 3,643 $ 490,140 Held-to-maturity: State and municipals $ 228,417 $ 6,698 $ 477 $ 234,638 Corporate debt securities 16,000 1 960 15,041 $ 244,417 $ 6,699 $ 1,437 $ 249,679
Investments Classified by Contractual Maturity Date	The amortized cost and estimated fair value of investment securities at June 30, 2016 , by contractual maturity, are shown below. 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: (Dollars in thousands) Due within one year $ 2,219 $ 2,247 Due after one through five years 66,795 70,218 Due after five through ten years 79,474 79,915 Due after ten years 365,636 372,074 Total debt securities 514,124 524,454 Equity securities 15,518 15,327 $ 529,642 $ 539,781 Held-to-maturity: Due within one year $ 6,479 $ 6,579 Due after one year through five years 63,001 64,787 Due after five through ten years 22,537 23,486 Due after ten years 171,260 177,965 $ 263,277 $ 272,817
Schedule of Realized Gain (Loss)	The following table presents a summary of realized gains and losses from the sale of investment securities: Three Months Ended June 30, Six Months Ended June 30, 2016 2015 2016 2015 (Dollars in thousands) Proceeds from sales $ 548 $ 5,342 $ 5,916 $ 19,877 Gross realized gains on sales $ 4 $ — $ 134 $ 82 Gross realized losses on sales — (4 ) (169 ) (37 ) Total realized gains (losses), net $ 4 $ (4 ) $ (35 ) $ 45
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: Less Than 12 Months 12 Months or More Total Number of Securities Fair Value Unrealized Losses Number of Securities Fair Value Unrealized Losses Fair Value Unrealized Losses June 30, 2016 (Dollars in thousands) Available-for-sale: State and municipals 1 $ 454 $ 1 — $ — $ — $ 454 $ 1 Corporate debt securities 4 15,709 1,286 3 9,969 691 25,678 1,977 Asset-backed debt securities 15 79,267 753 18 60,329 1,356 139,596 2,109 Equity securities 1 1,864 4 2 5,846 423 7,710 427 Mortgage-backed securities 9 19,555 114 3 3,825 24 23,380 138 30 $ 116,849 $ 2,158 26 $ 79,969 $ 2,494 $ 196,818 $ 4,652 Held-to-maturity: State and municipals — $ — $ — 13 $ 10,471 $ 158 $ 10,471 $ 158 Corporate debt securities — — — 1 2,920 1,080 2,920 1,080 — $ — $ — 14 $ 13,391 $ 1,238 $ 13,391 $ 1,238 Less Than 12 Months 12 Months or More Total Number of Securities Fair Value Unrealized Losses Number of Securities Fair Value Unrealized Losses Fair Value Unrealized Losses December 31, 2015 (Dollars in thousands) Available-for-sale: Corporate debt securities 6 $ 29,015 $ 658 1 $ 2,969 $ 31 $ 31,984 $ 689 Asset-backed debt securities 29 114,305 1,726 1 4,486 315 118,791 2,041 Equity securities 1 5,200 175 1 637 342 5,837 517 Mortgage-backed securities 20 66,175 327 3 3,432 69 69,607 396 56 $ 214,695 $ 2,886 6 $ 11,524 $ 757 $ 226,219 $ 3,643 Held-to-maturity: State and municipals 13 $ 20,658 $ 210 20 $ 17,072 $ 267 $ 37,730 $ 477 Corporate debt securities — — — 1 3,040 960 3,040 960 13 $ 20,658 $ 210 21 $ 20,112 $ 1,227 $ 40,770 $ 1,437

Loans and Allowance for Loan 25

Loans and Allowance for Loan Losses (Tables)	6 Months Ended
	Jun. 30, 2016
Receivables [Abstract]
Schedule of Financing Receivables Originated and Acquired	Major categories of loans are presented below: June 30, 2016 December 31, 2015 Originated Acquired (1) Total Originated Acquired (1) Total (Dollars in thousands) Commercial real estate $ 1,812,009 $ 687,337 $ 2,499,346 $ 1,575,555 $ 670,460 $ 2,246,015 Commercial construction 366,856 85,984 452,840 281,591 83,418 365,009 Commercial and industrial 333,995 120,487 454,482 279,495 139,621 419,116 Leases 29,463 — 29,463 26,773 — 26,773 Total commercial 2,542,323 893,808 3,436,131 2,163,414 893,499 3,056,913 Residential construction 79,977 18,055 98,032 59,937 16,084 76,021 Residential mortgage 526,556 731,295 1,257,851 484,895 563,563 1,048,458 Consumer and other 14,501 6,170 20,671 12,970 5,509 18,479 Total portfolio loans $ 3,163,357 $ 1,649,328 $ 4,812,685 $ 2,721,216 $ 1,478,655 $ 4,199,871 (1) Amount includes $0 and $40.9 million of acquired loans covered under FDIC loss-share agreements at June 30, 2016 and December 31, 2015, respectively. The unpaid principal balance for acquired loans covered under FDIC loss-share agreements was $0 and $41.4 million at June 30, 2016 and December 31, 2015, respectively.
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Table Text Block]	The following table presents loans acquired during the six months ended June 30, 2016, at acquisition date, accounted for under ASC 310-30: (Dollars in thousands) Contractually required payments receivable $ 17,168 Contractual cash flows not expected to be collected (non-accretable) (2,072 ) Expected cash flows 15,096 Interest component of expected cash flows (811 ) Fair value of loans acquired $ 14,285 The following table presents loans acquired during the six months ended June 30, 2016, at acquisition date, accounted for under ASC 310-30: (Dollars in thousands) Contractually required payments receivable $ 17,168 Contractual cash flows not expected to be collected (non-accretable) (2,072 ) Expected cash flows 15,096 Interest component of expected cash flows (811 ) Fair value of loans acquired $ 14,285
Activity of Purchased Loans with Evidence of Credit Deterioration	The following table presents a summary of the activity of the Company's loans accounted for under ASC 310-30: Six Months Ended June 30, 2016 2015 (Dollars in thousands) Balance at beginning of period $ 142,671 $ 150,382 Purchased loans acquired 14,285 — Accretion 2,223 2,975 Transfer to other real estate owned (2,695 ) (944 ) Net payments received (19,397 ) (15,369 ) Net charge-offs (937 ) (725 ) Other activity, net 900 (2,009 ) Balance at end of period $ 137,050 $ 134,310
Summary of Changes in Accretable Difference on Purchased Loans with Credit Deterioration	The following table presents a summary of changes in accretable difference on purchased loans accounted for under ASC 310-30: Six Months Ended June 30, 2016 2015 (Dollars in thousands) Balance at beginning of period $ 2,853 $ 4,418 Accretion (2,223 ) (2,975 ) Accretable difference acquired 811 — Adjustments to accretable difference due to changes in expected future cash flows 1,433 1,867 Balance at end of period $ 2,874 $ 3,310
Schedule of Credit Losses for Financing Receivables, Current [Table Text Block]	A summary of the changes to the allowance for loan losses, by class of financing receivable, is presented below: For the three months ended June 30, 2016 Commercial real estate Commercial construction Commercial and industrial Leases Residential construction Residential mortgage Consumer and other Total (Dollars in thousands) Balance March 31, 2016 $ 13,921 $ 5,214 $ 4,468 $ 107 $ 552 $ 8,020 $ 266 $ 32,548 Charge-offs (386 ) — (51 ) — — (407 ) (10 ) (854 ) Recoveries 128 385 131 — 6 790 9 1,449 Provision (1) 784 (357 ) 662 2 (21 ) (382 ) 10 698 Balance June 30, 2016 $ 14,447 $ 5,242 $ 5,210 $ 109 $ 537 $ 8,021 $ 275 $ 33,841 For the three months ended June 30, 2015 Commercial real estate Commercial construction Commercial and industrial Leases Residential construction Residential mortgage Consumer and other Total (Dollars in thousands) Balance March 31, 2015 $ 12,802 $ 3,377 $ 3,116 $ 85 $ 411 $ 9,345 $ 215 $ 29,351 Charge-offs (14 ) (74 ) (24 ) — — (399 ) (210 ) (721 ) Recoveries 375 719 273 — 4 277 109 1,757 Provision (2) (228 ) 1,578 (72 ) 7 48 (1,107 ) 75 301 Change in FDIC indemnification asset (2) 5 (53 ) (38 ) — — 22 11 (53 ) Balance June 30, 2015 $ 12,940 $ 5,547 $ 3,255 $ 92 $ 463 $ 8,138 $ 200 $ 30,635 For the six months ended June 30, 2016 Commercial real estate Commercial construction Commercial and industrial Leases Residential construction Residential mortgage Consumer and other Total (Dollars in thousands) Balance December 31, 2015 $ 13,471 $ 4,525 $ 4,586 $ 78 $ 466 $ 8,201 $ 320 $ 31,647 Charge-offs (574 ) — (54 ) — — (623 ) (19 ) (1,270 ) Recoveries 181 589 285 — 13 932 67 2,067 Provision (1) 1,373 234 424 31 58 (705 ) (70 ) 1,345 Change in FDIC indemnification asset (1) (4 ) (106 ) (31 ) — — 216 (23 ) 52 Balance June 30, 2016 $ 14,447 $ 5,242 $ 5,210 $ 109 $ 537 $ 8,021 $ 275 $ 33,841 For the six months ended June 30, 2015 Commercial real estate Commercial construction Commercial and industrial Leases Residential construction Residential mortgage Consumer and other Total (Dollars in thousands) Balance December 31, 2014 $ 12,685 $ 4,311 $ 3,226 $ 103 $ 570 $ 9,313 $ 191 $ 30,399 Charge-offs (1,560 ) (80 ) (109 ) — — (687 ) (266 ) (2,702 ) Recoveries 552 1,493 486 — 34 469 120 3,154 Provision (2) 1,345 264 (278 ) (11 ) (144 ) (912 ) 147 411 Change in FDIC indemnification asset (2) (82 ) (441 ) (70 ) — 3 (45 ) 8 (627 ) Balance June 30, 2015 $ 12,940 $ 5,547 $ 3,255 $ 92 $ 463 $ 8,138 $ 200 $ 30,635 (1) The provision for loan losses includes the "net" provision on covered loans after coverage provided by FDIC loss-share agreements, which totaled $0 and $(0.4) million for the three and six months ended June 30, 2016, respectively. For the six months ended June 30, 2016, this resulted in an increase in the FDIC indemnification asset of $0.1 million , which is the difference between the net provision on covered loans and the total reduction to the allowance for loan losses allocable to the covered loan portfolio of $0.3 million . (2) The provision for loan losses includes the "net" provision on covered loans after coverage provided by FDIC loss-share agreements, which totaled $0 and $(0.2) million for the three and six months ended June 30, 2015 , respectively. This resulted in a decrease in the FDIC indemnification asset of $0.1 million and $0.6 million , which is the difference between the net provision on covered loans and the total reduction to the allowance for loan losses allocable to the covered loan portfolio of $0.1 million and $0.8 million for the three and six months ended June 30, 2015, respectively.
Analysis of Allowance for Loan Losses by Class of Financing Receivable	A summary of the changes to the allowance for loan losses, by class of financing receivable, is presented below: For the three months ended June 30, 2016 Commercial real estate Commercial construction Commercial and industrial Leases Residential construction Residential mortgage Consumer and other Total (Dollars in thousands) Balance March 31, 2016 $ 13,921 $ 5,214 $ 4,468 $ 107 $ 552 $ 8,020 $ 266 $ 32,548 Charge-offs (386 ) — (51 ) — — (407 ) (10 ) (854 ) Recoveries 128 385 131 — 6 790 9 1,449 Provision (1) 784 (357 ) 662 2 (21 ) (382 ) 10 698 Balance June 30, 2016 $ 14,447 $ 5,242 $ 5,210 $ 109 $ 537 $ 8,021 $ 275 $ 33,841 For the three months ended June 30, 2015 Commercial real estate Commercial construction Commercial and industrial Leases Residential construction Residential mortgage Consumer and other Total (Dollars in thousands) Balance March 31, 2015 $ 12,802 $ 3,377 $ 3,116 $ 85 $ 411 $ 9,345 $ 215 $ 29,351 Charge-offs (14 ) (74 ) (24 ) — — (399 ) (210 ) (721 ) Recoveries 375 719 273 — 4 277 109 1,757 Provision (2) (228 ) 1,578 (72 ) 7 48 (1,107 ) 75 301 Change in FDIC indemnification asset (2) 5 (53 ) (38 ) — — 22 11 (53 ) Balance June 30, 2015 $ 12,940 $ 5,547 $ 3,255 $ 92 $ 463 $ 8,138 $ 200 $ 30,635 For the six months ended June 30, 2016 Commercial real estate Commercial construction Commercial and industrial Leases Residential construction Residential mortgage Consumer and other Total (Dollars in thousands) Balance December 31, 2015 $ 13,471 $ 4,525 $ 4,586 $ 78 $ 466 $ 8,201 $ 320 $ 31,647 Charge-offs (574 ) — (54 ) — — (623 ) (19 ) (1,270 ) Recoveries 181 589 285 — 13 932 67 2,067 Provision (1) 1,373 234 424 31 58 (705 ) (70 ) 1,345 Change in FDIC indemnification asset (1) (4 ) (106 ) (31 ) — — 216 (23 ) 52 Balance June 30, 2016 $ 14,447 $ 5,242 $ 5,210 $ 109 $ 537 $ 8,021 $ 275 $ 33,841 For the six months ended June 30, 2015 Commercial real estate Commercial construction Commercial and industrial Leases Residential construction Residential mortgage Consumer and other Total (Dollars in thousands) Balance December 31, 2014 $ 12,685 $ 4,311 $ 3,226 $ 103 $ 570 $ 9,313 $ 191 $ 30,399 Charge-offs (1,560 ) (80 ) (109 ) — — (687 ) (266 ) (2,702 ) Recoveries 552 1,493 486 — 34 469 120 3,154 Provision (2) 1,345 264 (278 ) (11 ) (144 ) (912 ) 147 411 Change in FDIC indemnification asset (2) (82 ) (441 ) (70 ) — 3 (45 ) 8 (627 ) Balance June 30, 2015 $ 12,940 $ 5,547 $ 3,255 $ 92 $ 463 $ 8,138 $ 200 $ 30,635 (1) The provision for loan losses includes the "net" provision on covered loans after coverage provided by FDIC loss-share agreements, which totaled $0 and $(0.4) million for the three and six months ended June 30, 2016, respectively. For the six months ended June 30, 2016, this resulted in an increase in the FDIC indemnification asset of $0.1 million , which is the difference between the net provision on covered loans and the total reduction to the allowance for loan losses allocable to the covered loan portfolio of $0.3 million . (2) The provision for loan losses includes the "net" provision on covered loans after coverage provided by FDIC loss-share agreements, which totaled $0 and $(0.2) million for the three and six months ended June 30, 2015 , respectively. This resulted in a decrease in the FDIC indemnification asset of $0.1 million and $0.6 million , which is the difference between the net provision on covered loans and the total reduction to the allowance for loan losses allocable to the covered loan portfolio of $0.1 million and $0.8 million for the three and six months ended June 30, 2015, respectively. The following table provides a breakdown of the recorded investment in loans and the allowance for loan losses based on the method of determining the allowance: Commercial real estate Commercial construction Commercial and industrial Leases Residential construction Residential mortgage Consumer and other Total Balances at June 30, 2016: (Dollars in thousands) Specific reserves: Impaired loans $ 1,731 $ 132 $ 1,162 $ — $ — $ 1,268 $ 14 $ 4,307 Purchase credit impaired loans 916 256 61 — 1 976 2 2,212 Total specific reserves 2,647 388 1,223 — 1 2,244 16 6,519 General reserves 11,800 4,854 3,987 109 536 5,777 259 27,322 Total $ 14,447 $ 5,242 $ 5,210 $ 109 $ 537 $ 8,021 $ 275 $ 33,841 Loans: Individually evaluated for impairment $ 25,164 $ 3,212 $ 2,058 $ — $ — $ 17,865 $ 61 $ 48,360 Purchase credit impaired loans 81,009 12,603 2,280 — 167 40,853 138 137,050 Loans collectively evaluated for impairment 2,393,173 437,025 450,144 29,463 97,865 1,199,133 20,472 4,627,275 Total $ 2,499,346 $ 452,840 $ 454,482 $ 29,463 $ 98,032 $ 1,257,851 $ 20,671 $ 4,812,685 Balances at December 31, 2015: Specific reserves: Impaired loans $ 2,166 $ 182 $ 646 $ — $ 53 $ 1,562 $ 49 $ 4,658 Purchase credit impaired loans 1,176 354 47 — 5 971 6 2,559 Total specific reserves 3,342 536 693 — 58 2,533 55 7,217 General reserves 10,129 3,989 3,893 78 408 5,668 265 24,430 Total $ 13,471 $ 4,525 $ 4,586 $ 78 $ 466 $ 8,201 $ 320 $ 31,647 Loans: Individually evaluated for impairment $ 26,498 $ 3,223 $ 1,687 $ — $ 825 $ 18,158 $ 129 $ 50,520 Purchase credit impaired loans 85,213 12,497 2,717 — 709 41,336 199 142,671 Loans collectively evaluated for impairment 2,134,304 349,289 414,712 26,773 74,487 988,964 18,151 4,006,680 Total $ 2,246,015 $ 365,009 $ 419,116 $ 26,773 $ 76,021 $ 1,048,458 $ 18,479 $ 4,199,871
Schedule Of Impaired Loans	The following tables present information related to impaired loans, excluding purchased impaired loans: Impaired Loans - With Allowance Impaired Loans - With No Allowance Recorded Investment Unpaid Principal Balance Allowances for Loan Losses Allocated Recorded Investment Unpaid Principal Balance June 30, 2016 (Dollars in thousands) Originated: Commercial real estate $ 10,839 $ 10,789 $ 1,571 $ 12,609 $ 12,561 Commercial construction 1,300 1,297 95 1,315 1,308 Commercial and industrial 1,733 1,722 678 — — Residential mortgage 5,355 5,331 455 4,239 4,232 Consumer and other 29 29 9 — — Total originated 19,256 19,168 2,808 18,163 18,101 Acquired: Commercial real estate 1,237 1,256 160 578 580 Commercial construction 266 263 36 343 343 Commercial and industrial 331 715 485 1 — Residential mortgage 5,502 5,957 813 2,798 2,819 Consumer and other 31 35 5 — — Total acquired 7,367 8,226 1,499 3,720 3,742 Total impaired loans $ 26,623 $ 27,394 $ 4,307 $ 21,883 $ 21,843 Impaired Loans - With Allowance Impaired Loans - With No Allowance Recorded Investment Unpaid Principal Balance Allowances for Loan Losses Allocated Recorded Investment Unpaid Principal Balance December 31, 2015 (Dollars in thousands) Originated: Commercial real estate $ 11,750 $ 11,736 $ 1,990 $ 13,099 $ 13,068 Commercial construction 1,537 1,533 123 1,325 1,320 Commercial and industrial 1,459 1,451 575 — — Residential construction 343 342 42 306 306 Residential mortgage 8,159 8,141 860 2,154 2,145 Consumer and other 10 10 1 — — Total originated 23,258 23,213 3,591 16,884 16,839 Acquired: Commercial real estate 1,374 1,390 175 330 331 Commercial construction 369 370 59 — — Commercial and industrial 232 304 71 — — Residential construction 109 109 11 68 588 Residential mortgage 5,302 5,632 702 2,572 2,597 Consumer and other 119 119 49 — — Total acquired 7,505 7,924 1,067 2,970 3,516 Total impaired loans $ 30,763 $ 31,137 $ 4,658 $ 19,854 $ 20,355
Schedule of Average Recorded Investment and Interest Income Recognized on Impaired Loans	The following table presents information related to the average recorded investment and interest income recognized on impaired loans, excluding purchased impaired loans: Three Months Ended June 30, Six Months Ended June 30, 2016 2015 2016 2015 Average Recorded Investment Interest Income Average Recorded Investment Interest Income Average Recorded Investment Interest Income Average Recorded Investment Interest Income Impaired loans with allowance: (Dollars in thousands) Commercial real estate $ 12,020 $ 103 $ 12,557 $ 112 $ 12,465 $ 206 $ 12,561 $ 193 Commercial construction 1,388 15 1,522 20 1,529 29 1,648 38 Commercial and industrial 1,705 34 1,447 17 1,680 61 1,440 29 Residential construction 343 4 347 4 369 5 375 7 Residential mortgage 12,200 61 5,390 44 12,723 133 7,335 59 Consumer and other 42 — 11 — 37 — 58 1 Total impaired loans with allowance $ 27,698 $ 217 $ 21,274 $ 197 $ 28,803 $ 434 $ 23,417 $ 327 Impaired loans with no allowance: Commercial real estate $ 13,434 $ 129 $ 22,370 $ 141 $ 13,619 $ 259 $ 20,839 $ 239 Commercial construction 1,893 355 2,627 15 1,815 543 2,608 30 Commercial and industrial 146 1 406 — 136 — 334 — Residential construction — — 112 — 68 — 113 — Residential mortgage 5,941 20 14,026 — 5,794 43 12,558 46 Consumer and other 20 — 81 — 20 — 81 — Total impaired loans with no allowance $ 21,434 $ 505 $ 39,622 $ 156 $ 21,452 $ 845 $ 36,533 $ 315
Aging of Financing Receivables	The following tables present an aging analysis of the recorded investment in the Company's loans: Current 30-59 Days Past Due 60-89 Days Past Due Greater than 90 Days Past Due Non-Accrual Total Loans June 30, 2016 (Dollars in thousands) Originated: Commercial real estate $ 1,807,314 $ 2,919 $ — $ — $ 1,776 $ 1,812,009 Commercial construction 366,574 85 80 — 117 366,856 Commercial and industrial 333,463 220 188 — 124 333,995 Leases 29,453 — — 10 — 29,463 Residential construction 79,977 — — — — 79,977 Residential mortgage 522,443 690 53 — 3,370 526,556 Consumer and other 14,431 50 — — 20 14,501 Total originated 3,153,655 3,964 321 10 5,407 3,163,357 Acquired: Commercial real estate 681,672 433 1,556 — 3,676 687,337 Commercial construction 85,138 42 200 — 604 85,984 Commercial and industrial 119,817 244 165 — 261 120,487 Residential construction 18,055 — — — — 18,055 Residential mortgage 722,527 944 653 — 7,171 731,295 Consumer and other 6,086 23 17 — 44 6,170 Total acquired 1,633,295 1,686 2,591 — 11,756 1,649,328 Total loans $ 4,786,950 $ 5,650 $ 2,912 $ 10 $ 17,163 $ 4,812,685 Current 30-59 Days Past Due 60-89 Days Past Due Greater than 90 Days Past Due Non-Accrual Total Loans December 31, 2015 (Dollars in thousands) Originated: Commercial real estate $ 1,571,034 $ 800 $ 564 $ — $ 3,157 $ 1,575,555 Commercial construction 281,345 82 — — 164 281,591 Commercial and industrial 279,116 89 21 — 269 279,495 Leases 26,773 — — — — 26,773 Residential construction 59,631 — — — 306 59,937 Residential mortgage 480,251 1,714 203 — 2,727 484,895 Consumer and other 12,958 12 — — — 12,970 Total originated 2,711,108 2,697 788 — 6,623 2,721,216 Acquired: Commercial real estate 664,153 893 1,139 — 4,275 670,460 Commercial construction 82,994 10 20 — 394 83,418 Commercial and industrial 139,130 69 250 3 169 139,621 Residential construction 15,891 — 16 — 177 16,084 Residential mortgage 552,348 3,266 1,010 — 6,939 563,563 Consumer and other 5,295 77 5 — 132 5,509 Total acquired 1,459,811 4,315 2,440 3 12,086 1,478,655 Total loans $ 4,170,919 $ 7,012 $ 3,228 $ 3 $ 18,709 $ 4,199,871
Financing Receivable Credit Quality Indicators	The following tables present the recorded investment in the Company’s loans by credit quality indicator: Pass Special Mention Substandard Doubtful Loss Total June 30, 2016 (Dollars in thousands) Originated: Commercial real estate $ 1,743,190 $ 38,483 $ 30,336 $ — $ — $ 1,812,009 Commercial construction 358,028 5,813 3,015 — — 366,856 Commercial and industrial 324,462 4,391 5,142 — — 333,995 Leases 29,463 — — — — 29,463 Residential construction 79,107 870 — — — 79,977 Residential mortgage 495,854 20,598 10,104 — — 526,556 Consumer and other 14,123 349 29 — — 14,501 Total originated 3,044,227 70,504 48,626 — — 3,163,357 Acquired: Commercial real estate 622,257 29,075 35,793 211 1 687,337 Commercial construction 70,828 6,361 8,677 118 — 85,984 Commercial and industrial 111,798 3,659 5,030 — — 120,487 Residential construction 17,805 — 250 — — 18,055 Residential mortgage 675,179 35,060 20,823 233 — 731,295 Consumer and other 6,019 99 52 — — 6,170 Total acquired 1,503,886 74,254 70,625 562 1 1,649,328 Total loans $ 4,548,113 $ 144,758 $ 119,251 $ 562 $ 1 $ 4,812,685 Pass Special Mention Substandard Doubtful Loss Total December 31, 2015 (Dollars in thousands) Originated: Commercial real estate $ 1,499,554 $ 48,775 $ 27,226 $ — $ — $ 1,575,555 Commercial construction 272,960 6,434 2,197 — — 281,591 Commercial and industrial 270,116 4,855 4,524 — — 279,495 Leases 26,773 — — — — 26,773 Residential construction 59,265 24 648 — — 59,937 Residential mortgage 453,544 20,440 10,911 — — 484,895 Consumer and other 12,566 394 10 — — 12,970 Total originated 2,594,778 80,922 45,516 — — 2,721,216 Acquired: Commercial real estate 596,973 31,318 42,169 — — 670,460 Commercial construction 69,473 5,655 8,163 127 — 83,418 Commercial and industrial 127,911 3,273 8,437 — — 139,621 Residential construction 14,541 470 1,073 — — 16,084 Residential mortgage 504,836 38,763 19,716 248 — 563,563 Consumer and other 5,244 133 132 — — 5,509 Total acquired 1,318,978 79,612 79,690 375 — 1,478,655 Total loans $ 3,913,756 $ 160,534 $ 125,206 $ 375 $ — $ 4,199,871
Troubled Debt Restructurings on Financing Receivables	The following tables provide a summary of loans modified as TDRs: Accrual Nonaccrual Total TDRs Allowance for Loan Losses Allocated June 30, 2016 (Dollars in thousands) Commercial real estate $ 1,673 $ 434 $ 2,107 $ 172 Commercial construction 811 — 811 4 Commercial and industrial 1,127 — 1,127 615 Residential mortgage 6,218 271 6,489 391 Consumer and other 10 — 10 1 Total modifications $ 9,839 $ 705 $ 10,544 $ 1,183 Number of contracts 26 6 32 Accrual Nonaccrual Total TDRs Allowance for Loan Losses Allocated December 31, 2015 (Dollars in thousands) Commercial real estate $ 5,938 $ 720 $ 6,658 $ 331 Commercial construction 893 46 939 16 Commercial and industrial 1,186 — 1,186 484 Residential mortgage 6,691 14 6,705 1 Consumer and other 10 — 10 564 Total modifications $ 14,718 $ 780 $ 15,498 $ 1,396 Number of contracts 35 3 38
New Troubled Debt Restructurings By Modification Category	The following tables present new TDRs by modification category. All balances represent the recorded investment at the end of the period in which the modification was made. Three Months Ended June 30, 2016 Three Months Ended June 30, 2015 Term Interest Only Total Term Interest Only Total (Dollars in thousands) Commercial real estate $ — $ 261 $ 261 $ — $ 358 $ 358 Commercial and industrial 433 — 433 93 231 324 Residential mortgage — 271 271 — — — Total modifications $ 433 $ 532 $ 965 $ 93 $ 589 $ 682 Six Months Ended June 30, 2016 Six Months Ended June 30, 2015 Term Payment Interest Only Total Term Payment Interest Only Combination Total (Dollars in thousands) Commercial real estate $ — $ 314 $ 261 $ 575 $ 417 $ — $ 358 $ 863 $ 1,638 Commercial and industrial 433 — — 433 93 419 231 — 743 Residential mortgage — — 271 271 — — — — — Total modifications $ 433 $ 314 $ 532 $ 1,279 $ 510 $ 419 $ 589 $ 863 $ 2,381
Loans Modified in Troubled Debt Restructurings During the Previous 12 months Which Experienced a Payment Default	No loans modified and classified as TDRs in the previous twelve months defaulted during the three and six months ended June 30, 2016, while loans modified and classified as TDRs in the previous twelve months and defaulted during the three and six months ended June 30, 2015 were immaterial. The Company defines payment default as movement of the restructuring to nonaccrual status, foreclosure or charge-off, whichever occurs first.
Loan Sale Activity On Single Family Residential First Mortgage Loans Originated For Sale On A Presold Basis	Loan sale activity is summarized below: Three Months Ended June 30, Six Months Ended June 30, 2016 2015 2016 2015 (Dollars in thousands) Loans held for sale at period end $ 41,703 $ 36,315 $ 41,703 $ 36,315 Proceeds from sales of mortgage loans originated for sale 91,357 86,049 175,445 175,971 Gain on sales of mortgage loans originated for sale 2,444 2,562 4,987 4,930

Derivatives (Tables)

Derivatives (Tables)	6 Months Ended
	Jun. 30, 2016
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Interest Rate Derivatives	The following table presents the fair value of the Company’s derivatives: June 30, 2016 December 31, 2015 Notional Amount Balance Sheet Location Fair Value Notional Amount Balance Sheet Location Fair Value Derivative assets: (Dollars in thousands) Derivatives not designated as hedging instruments: Interest rate swaps $ 68,438 Other assets $ 2,753 $ 63,320 Other assets $ 1,332 Derivative liabilities: Derivatives designated as hedging instruments: Interest rate swap $ 125,000 Accrued expenses and other liabilities $ 3,057 $ 125,000 Accrued expenses and other liabilities $ 1,085 Derivatives not designated as hedging instruments: Interest rate swaps $ 68,438 Accrued expenses and other liabilities $ 2,753 $ 63,320 Accrued expenses and other liabilities $ 1,332
Offsetting Assets And Liabilities	Information about financial instruments that are eligible for offset in the consolidated balance sheets is presented in the following table: Gross Amounts Not Offset in the Consolidated Balance Sheets Gross Amount Recognized Gross Amounts Offset in the Consolidated Balance Sheets Net Amounts Presented in the Consolidated Balance Sheets Financial Instruments Collateral Held/Pledged Net June 30, 2016 (Dollars in thousands) Derivative assets $ 2,753 $ — $ 2,753 $ — $ — $ 2,753 Derivative liabilities 5,810 — 5,810 — 5,810 — Total derivative instruments $ 8,563 $ — $ 8,563 $ — $ 5,810 $ 2,753 December 31, 2015 Derivative assets $ 1,332 $ — $ 1,332 $ — $ — $ 1,332 Derivative liabilities 2,417 — 2,417 — 2,417 — Total derivative instruments $ 3,749 $ — $ 3,749 $ — $ 2,417 $ 1,332
Schedule of Cash Flow Hedges Included in Accumulated Other Comprehensive Income (Loss)	The following table presents the amounts recorded in the Consolidated Statements of Comprehensive Income relating to derivative instruments designated as cash flow hedges, net of tax: Three Months Ended June 30, Six Months Ended June 30, 2016 2015 2016 2015 (Dollars in thousands) Amount of net (losses) gains recorded in OCI (effective portion) $ (226 ) $ 348 $ (1,242 ) $ (468 )

Borrowings (Tables)

Borrowings (Tables)	6 Months Ended
	Jun. 30, 2016
Debt Disclosure [Abstract]
Schedule of Short Term Debt	The following table presents the Company’s short-term borrowings: June 30, 2016 December 31, 2015 (Dollars in thousands) Repurchase agreements (1) $ 66,491 $ 64,373 Federal funds purchased 24,845 19,839 Advances from FHLB 15,000 4,000 Revolving credit facility — 15,000 Total short-term borrowings $ 106,336 $ 103,212 (1) 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.
Schedule of Long-term Debt Instruments	The following table presents the Company’s long-term debt: June 30, 2016 December 31, 2015 (Dollars in thousands) Advances from FHLB, net (1) $ 130,856 $ 81,371 Subordinated notes, net (1) 70,719 70,790 Junior subordinated debentures, net (1) 44,208 36,190 Total long-term debt $ 245,783 $ 188,351
Schedule of Junior Subordinated Debentures	The following table details the junior subordinated debentures outstanding: Shares issued Interest rate Maturity date June 30, 2016 December 31, (Dollars in thousands) BNC Bancorp Capital Trust I 5,000 LIBOR plus 3.25% 4/15/2033 $ 5,155 $ 5,155 BNC Bancorp Capital Trust II 6,000 LIBOR plus 2.80% 4/7/2034 6,186 6,186 BNC Capital Trust III 5,000 LIBOR plus 2.40% 9/23/2034 5,155 5,155 BNC Capital Trust IV 7,000 LIBOR plus 1.70% 12/31/2036 7,217 7,217 Southcoast Capital Trust III 10,000 LIBOR plus 0.60% 9/30/2035 10,310 — Valley Financial (VA) Statutory Trust I 4,000 LIBOR plus 3.10% 6/26/2033 4,124 4,124 Valley Financial (VA) Statutory Trust II 7,000 LIBOR plus 1.70% 12/15/2035 7,217 7,217 Valley Financial Statutory Trust III 5,000 LIBOR plus 1.70% 1/30/2037 5,155 5,155 50,519 40,209 Unamortized discount 6,130 3,833 Unamortized debt issuance costs 181 186 $ 44,208 $ 36,190

Accumulated Other Comprehensi28

Accumulated Other Comprehensive Income (Tables)	6 Months Ended
	Jun. 30, 2016
Accumulated Other Comprehensive Income [Abstract]
Schedule of Accumulated Other Comprehensive Income	The following table presents the changes in accumulated other comprehensive income, net of taxes: Unrealized Holding Gains (Losses) on Investment Securities Available-For-Sale 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 (Dollars in thousands) Balance at March 31, 2016 $ 4,619 $ 2,477 $ (1,701 ) $ 5,395 Other comprehensive income (loss) before reclassifications 1,772 — (226 ) 1,546 Reclassifications from accumulated other comprehensive income (3 ) (177 ) — (180 ) Net current period other comprehensive income (loss) 1,769 (177 ) (226 ) 1,366 Balance at June 30, 2016 $ 6,388 $ 2,300 $ (1,927 ) $ 6,761 Balance at March 31, 2015 $ 7,912 $ 3,187 $ (1,012 ) $ 10,087 Other comprehensive income (loss) before reclassifications (1,947 ) — 348 (1,599 ) Reclassifications from accumulated other comprehensive income 3 (123 ) — (120 ) Net current period other comprehensive (loss) income (1,944 ) (123 ) 348 (1,719 ) Balance at June 30, 2015 $ 5,968 $ 3,064 $ (664 ) $ 8,368 Unrealized Holding Gains (Losses) on Investment Securities Available-For-Sale 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 (Dollars in thousands) Balance at December 31, 2015 $ 5,227 $ 2,787 $ (685 ) $ 7,329 Other comprehensive income (loss) before reclassifications 1,139 — (1,242 ) (103 ) Reclassifications from accumulated other comprehensive income 22 (487 ) — (465 ) Net current period other comprehensive income (loss) 1,161 (487 ) (1,242 ) (568 ) Balance at June 30, 2016 $ 6,388 $ 2,300 $ (1,927 ) $ 6,761 Balance at December 31, 2014 $ 7,089 $ 3,289 $ (196 ) $ 10,182 Other comprehensive loss before reclassifications (1,093 ) — (468 ) (1,561 ) Reclassifications from accumulated other comprehensive income (28 ) (225 ) — (253 ) Net current period other comprehensive loss (1,121 ) (225 ) (468 ) (1,814 ) Balance at June 30, 2015 $ 5,968 $ 3,064 $ (664 ) $ 8,368
Reclassification Out Of Accumulated Other Comprehensive Income	The following table details reclassification adjustments from accumulated other comprehensive income: Three Months Ended June 30, Six Months Ended June 30, Component of Accumulated Other Comprehensive Income 2016 2015 2016 2015 Affected Line Item in the Consolidated Statement of Income (Dollars in thousands) Unrealized holding gains (losses) on investment securities available-for-sale $ 4 $ (4 ) $ (35 ) $ 45 Gain (loss) on sale of investment securities, net (1 ) 1 13 (17 ) Income tax expense 3 (3 ) (22 ) 28 Total, net of tax Unrealized holding gains on investment securities transferred from available-for-sale to held-to-maturity (1) 280 195 772 357 Interest income - investment securities (103 ) (72 ) (285 ) (132 ) Income tax expense 177 123 487 225 Total, net of tax Total reclassifications for the period $ 180 $ 120 $ 465 $ 253 (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)	6 Months Ended
	Jun. 30, 2016
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: Total Measured at Fair Value Fair Value Measured Using Description Level 1 Level 2 Level 3 June 30, 2016 (Dollars in thousands) Assets: Investment securities available-for-sale: U.S. Government agencies $ 11,815 $ — $ 11,815 $ — State and municipals 180,890 — 180,890 — Corporate debt securities 49,990 — 49,990 — Asset backed securities 164,301 — 164,301 — Equity securities 15,327 15,327 — — Mortgage-backed securities: Residential government sponsored 115,970 — 115,970 — Other government sponsored 1,488 — 1,488 — Total investment securities available-for-sale 539,781 15,327 524,454 — Derivative instruments: Interest rate swaps - not designated 2,753 — 2,753 — Total derivative instruments 2,753 — 2,753 — Total assets measured at fair value on a recurring basis $ 542,534 $ 15,327 $ 527,207 $ — Liabilities: Interest rate swap - cash flow hedge $ 3,057 $ — $ 3,057 $ — Interest rate swaps - not designated 2,753 — 2,753 — Total liabilities measured at fair value on a recurring basis $ 5,810 $ — $ 5,810 $ — Total Measured at Fair Value Fair Value Measured Using Description Level 1 Level 2 Level 3 December 31, 2015 (Dollars in thousands) Assets: Investment securities available-for-sale: U.S. Government agencies $ 12,327 $ — $ 12,327 $ — State and municipals 180,618 — 180,618 — Corporate debt securities 47,703 — 47,703 — Other debt securities 138,747 — 138,747 — Equity securities 11,273 637 10,636 — Mortgage-backed securities: Residential government sponsored 97,777 — 97,777 — Other government sponsored 1,695 — 1,695 — Total investment securities available-for-sale 490,140 637 489,503 — Derivative instruments: Interest rate swap - not designated 1,332 — 1,332 — Total derivative instruments 1,332 — 1,332 — Total assets measured at fair value on a recurring basis $ 491,472 $ 637 $ 490,835 $ — Liabilities: Interest rate swap - cash flow hedge $ 1,085 $ — $ 1,085 $ — Interest rate swap - not designated 1,332 — 1,332 — Total liabilities measured at fair value on a recurring basis $ 2,417 $ — $ 2,417 $ —
Fair Value Measurements, Nonrecurring	The following tables present information about certain assets and liabilities measured at fair value on a nonrecurring basis: Total Measured at Fair Value Fair Value Measured Using Description Level 1 Level 2 Level 3 June 30, 2016 (Dollars in thousands) Loans held for sale $ 41,703 $ — $ 41,703 $ — Impaired loans 178,891 — — 178,891 OREO 30,514 — — 30,514 Total assets measured at fair value on a nonrecurring basis $ 251,108 $ — $ 41,703 $ 209,405 December 31, 2015 Loans held for sale $ 39,470 $ — $ 39,470 $ — Impaired loans 185,974 — — 185,974 OREO 32,561 — — 32,561 Total assets measured at fair value on a nonrecurring basis $ 258,005 $ — $ 39,470 $ 218,535
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 June 30, 2016: Description Fair Value (in thousands) Valuation Methodology Unobservable Inputs Range of Inputs Impaired loans $ 178,891 Appraised value Discount to reflect current market conditions and ultimate collectability 0% - 20% OREO 30,514 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: Carrying Value Fair Value Level 1 Level 2 Level 3 June 30, 2016 (Dollars in thousands) Financial assets: Cash and cash equivalents $ 192,390 $ 192,390 $ 192,390 $ — $ — Investment securities available-for-sale 539,781 539,781 15,327 524,454 — Investment securities held-to-maturity 263,277 272,817 — 272,817 — Federal Home Loan Bank stock 11,582 11,582 — 11,582 — Loans held for sale 41,703 41,703 — 41,703 — Loans receivable, net 4,778,844 4,812,508 — 4,633,617 178,891 Accrued interest receivable 19,581 19,581 — 19,581 — Investment in bank-owned life insurance 172,502 172,502 — 172,502 — Interest rate swaps - not designated 2,753 2,753 — 2,753 — Financial liabilities: Demand deposits and savings $ 3,541,989 $ 3,541,989 $ — $ 3,541,989 $ — Time deposits 1,814,654 1,819,646 — 1,819,646 — Short-term borrowings 106,336 106,336 — 106,336 — Long-term debt 245,783 239,575 — 239,575 — Accrued interest payable 2,298 2,298 — 2,298 — Interest rate swap - cash flow hedge 3,057 3,057 — 3,057 — Interest rate swaps - not designated 2,753 2,753 — 2,753 — Carrying Value Fair Value Level 1 Level 2 Level 3 December 31, 2015 (Dollars in thousands) Financial assets: Cash and cash equivalents $ 204,238 $ 204,238 $ 204,238 $ — $ — Investment securities available-for-sale 490,140 490,140 637 489,503 — Investment securities held-to-maturity 244,417 249,679 — 249,679 — Federal Home Loan Bank stock 8,171 8,171 — 8,171 — Loans held for sale 39,470 39,470 — 39,470 — Loans receivable, net 4,168,224 4,228,455 — 4,042,481 185,974 Accrued interest receivable 18,055 18,055 — 18,055 — FDIC indemnification asset 1,909 1,909 — — 1,909 Investment in bank-owned life insurance 116,806 116,806 — 116,806 — Interest rate swaps - not designated 1,332 1,332 — 1,332 — Financial liabilities: Demand deposits and savings $ 3,143,369 $ 3,143,369 $ — $ 3,143,369 $ — Time deposits 1,598,838 1,611,707 — 1,611,707 — Short-term borrowings 103,212 103,212 — 103,212 — Long-term debt 189,578 184,289 — 184,289 — Accrued interest payable 2,002 2,002 — 2,002 — Interest rate swap - cash flow hedge 1,085 1,085 — 1,085 — Interest rate swaps - not designated 1,332 1,332 — 1,332 —

Commitments and Contingencies (

Commitments and Contingencies (Tables)	6 Months Ended
	Jun. 30, 2016
Commitments and Contingencies Disclosure [Abstract]
Schedule of Fair Value Off Balance Sheet Risks	The following table presents the outstanding off-balance sheet financial instruments whose contract amounts represent potential credit risk: June 30, 2016 December 31, 2015 (Dollars in thousands) Commitments under unfunded loans and lines of credit $ 1,215,927 $ 1,010,497 Letters of credit 14,595 14,213

Employee Benefits (Tables)

Employee Benefits (Tables)	6 Months Ended
	Jun. 30, 2016
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 six months ended June 30, 2016 is presented below: Shares Weighted Average Exercise Price per Share Weighted Average Remaining Contractual Term (Years) Aggregate Intrinsic Value (Dollars in thousands, except per share amounts) Outstanding at December 31, 2015 152,571 $ 9.69 Issued — — Exercised 41,171 10.00 Forfeited or expired — — Outstanding at June 30, 2016 111,400 9.58 2.35 $ 1,463 Exercisable at June 30, 2016 111,400 9.58 2.35 1,463
Schedule of Nonvested Restricted Stock Units Activity	A summary of the activity of the Company’s unvested restricted stock awards for the six months ended June 30, 2016 is presented below: Number of Shares Weighted Average Grant-Date Fair Value per Share Unvested at December 31, 2015 516,088 $ 15.78 Granted 61,265 20.95 Vested (102,321 ) 13.49 Forfeited (2,500 ) 19.33 Unvested at June 30, 2016 472,532 $ 16.93

Acquisitions - Schedule of Reco

Acquisitions - Schedule of Recognized Identified Assets Acquired and Liabilities Assumed Southcoast (Details) - Southcoast Financial Corporation $ in Thousands	Jun. 17, 2016USD ($)
Business Acquisition [Line Items]
Ratio of Shares Issued Per Share of Acquired Entity	0.6068
Total consideration paid	$ 98,970
Common stock issued (4,310,445 shares)	98,968
Cash payments to common stockholders	2
As Recorded By Acquiree
Business Acquisition [Line Items]
Cash and due from banks	24,019
Investment securities available-for-sale	30,607
Loans	365,232
Premises and equipment	19,585
Other real estate owned	306
Core deposit intangible	0
Other assets	23,082
Total assets acquired	462,831
Deposits	(335,924)
Borrowings	(69,300)
Other Liabilities	(4,789)
Total liabilities assumed	(410,013)
Net assets acquired	52,818
Measurement Period Adjustments
Business Acquisition [Line Items]
Cash and due from banks	0
Investment securities available-for-sale	(1,094)
Loans	(9,233)
Premises and equipment	2,304
Other real estate owned	0
Core deposit intangible	3,058
Other assets	845
Total assets acquired	(4,120)
Deposits	(175)
Borrowings	(1,255)
Other Liabilities	(91)
Total liabilities assumed	(1,521)
Net assets acquired	(5,641)
As Recorded By Acquirer
Business Acquisition [Line Items]
Cash and due from banks	24,019
Investment securities available-for-sale	29,513
Loans	355,999
Premises and equipment	21,889
Other real estate owned	306
Core deposit intangible	3,058
Other assets	23,927
Total assets acquired	458,711
Deposits	(336,099)
Borrowings	(70,555)
Other Liabilities	(4,880)
Total liabilities assumed	(411,534)
Net assets acquired	47,177
Total consideration paid	98,970
Goodwill	$ 51,793

Basis of Presentation - Details

Basis of Presentation - Details (Details) $ in Thousands	Jun. 30, 2016USD ($)branch	Dec. 31, 2015USD ($)
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Number of Stores | branch	70
Other Assets | $	$ (84,190)	$ (77,012)
Long-term Debt | $	$ (245,783)	(188,351)
Accounting Standards Update 2015-03 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Other Assets | $		1,200
Long-term Debt | $		$ 1,200
NORTH CAROLINA
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Number of Stores | branch	35
SOUTH CAROLINA
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Number of Stores | branch	26
VIRGINIA
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Number of Stores | branch	9

Acquisitions - Pro Forma Financ

Acquisitions - Pro Forma Financial Disclosures Southcoast (Details) - Southcoast Financial Corporation - USD ($) $ / shares in Units, $ in Thousands	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Business Acquisition [Line Items]
Business Acquisition Pro Forma Net Interest Income	$ 106,078	$ 101,632
Business Acquisition Pro Forma Non Interest Income	18,130	19,610
Business Acquisition, Pro Forma Net Income (Loss)	$ 34,039	$ 21,739
Business Acquisition, Pro Forma Earnings Per Share, Basic	$ 0.75	$ 0.51
Business Acquisition, Pro Forma Earnings Per Share, Diluted	$ 0.75	$ 0.51

Acquisitions - Schedule of Re35

Acquisitions - Schedule of Recognized Identified Assets Acquired and Liabilities Assumed CertusBank N.A. Branches (Details) - CertusBank, N.A. $ in Thousands	Oct. 16, 2015USD ($)branch	Jun. 17, 2016USD ($)
Business Acquisition [Line Items]
Number of Branches Acquired | branch	7
As Recorded By Acquirer
Business Acquisition [Line Items]
Cash and due from banks	$ 1,297
Loans	183,071
Premises and equipment	9,240
Accrued interest receivable	443
Core deposit intangible	1,348
Other assets	745
Total assets acquired	196,144
Deposits	(176,043)
Other Liabilities	(606)
Total liabilities assumed	(176,649)
Net assets acquired	19,495
Total consideration paid	25,692
Goodwill	6,197
As Recorded By Acquiree
Business Acquisition [Line Items]
Cash and due from banks		$ 1,297
Loans		186,354
Premises and equipment		8,542
Accrued interest receivable		443
Core deposit intangible		0
Other assets		11
Total assets acquired	196,647
Deposits		(175,783)
Other Liabilities	(119)
Total liabilities assumed	(175,902)
Net assets acquired	20,745
Measurement Period Adjustments
Business Acquisition [Line Items]
Cash and due from banks		0
Loans		(3,283)
Premises and equipment		698
Accrued interest receivable		0
Core deposit intangible		1,348
Other assets		734
Total assets acquired	(503)
Deposits		(260)
Other Liabilities		$ (487)
Total liabilities assumed	(747)
Net assets acquired	$ (1,250)

Acquisitions - Schedule of Re36

Acquisitions - Schedule of Recognized Identified Assets Acquired and Liabilities Assumed Valley Financial (Details) - Valley Financial Corporation $ in Thousands	Jul. 01, 2015USD ($)branchshares
Business Acquisition [Line Items]
Common stock issued	$ 107,924
Redemption of preferred stock	773
Cash payments to common stockholders	$ 3
Ratio of Shares Issued Per Share of Acquired Entity	1.1081
Total consideration paid	$ 108,700
Number of Branches Acquired | branch	9
Business Acquisition, Goodwill, Expected Tax Deductible Amount	$ 0
As Recorded By Acquiree
Business Acquisition [Line Items]
Cash and due from banks	13,263
Investment securities available-for-sale	152,125
Federal Home Loan Bank stock, at cost	4,338
Loans	624,006
Premises and equipment	8,934
Accrued interest receivable	2,263
Other real estate owned	8,114
Core deposit intangible	0
Other assets	31,297
Total assets acquired	844,340
Deposits	(646,053)
Long-term Debt	(141,087)
Other Liabilities	(972)
Total liabilities assumed	(788,112)
Net assets acquired	56,228
Measurement Period Adjustments
Business Acquisition [Line Items]
Cash and due from banks	0
Investment securities available-for-sale	(796)
Federal Home Loan Bank stock, at cost	0
Loans	(15,973)
Premises and equipment	892
Accrued interest receivable	0
Other real estate owned	0
Core deposit intangible	6,964
Other assets	3,641
Total assets acquired	(5,272)
Deposits	(1,086)
Long-term Debt	548
Other Liabilities	(458)
Total liabilities assumed	(996)
Net assets acquired	(6,268)
Recast Adjustments [Member]
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	(616)
Premises and equipment	0
Accrued interest receivable	0
Other real estate owned	(900)
Core deposit intangible	0
Other assets	(225)
Total assets acquired	(1,741)
Deposits	0
Long-term Debt	0
Other Liabilities	0
Total liabilities assumed	0
Net assets acquired	(1,741)
As Recorded By Acquirer
Business Acquisition [Line Items]
Cash and due from banks	13,263
Investment securities available-for-sale	151,329
Federal Home Loan Bank stock, at cost	4,338
Loans	607,417
Premises and equipment	9,826
Accrued interest receivable	2,263
Other real estate owned	7,214
Core deposit intangible	6,964
Other assets	34,713
Total assets acquired	837,327
Deposits	(647,139)
Long-term Debt	(140,539)
Other Liabilities	(1,430)
Total liabilities assumed	(789,108)
Net assets acquired	48,219
Total consideration paid	108,700
Goodwill	$ 60,481
Common stock
Business Acquisition [Line Items]
Stock Issued During Period, Shares, Acquisitions | shares	5,500,697

Acquisitions - Narrative (Detai

Acquisitions - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Business Combinations [Abstract]
Business Acquisition, Transaction Costs	$ 3.8	$ 1.2	$ 5.2	$ 4.1

Earnings Per Share - Schedule o

Earnings Per Share - Schedule of Earnings Per Share Basic and Diluted (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Earnings Per Share [Abstract]
Net income	$ 14,647	$ 11,014	$ 29,082	$ 19,772
Weighted Average Participating Common Shares - Basic	41,468,918	32,585,419	41,129,258	32,632,858
Effects of Dilutive Stock Rights	91,079	67,540	99,884	71,222
Weighted Average Participating Common Shares - Diluted	41,559,997	32,652,959	41,229,142	32,704,080
Basic (USD per share)	$ 0.35	$ 0.34	$ 0.71	$ 0.61
Diluted (USD per share)	$ 0.35	$ 0.34	$ 0.71	$ 0.60
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	0	0	0	0

Investment Securities - Marketa

Investment Securities - Marketable Securities (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis	$ 529,642	$ 481,844
Available For Sale Debt Securities, Gross Unrealized Gain, Accumulated In Investments	14,791	11,939
Available For Sale Debt Securities, Gross Unrealized Loss, Accumulated In Investments	4,652	3,643
Investment securities available-for-sale, at fair value	539,781	490,140
Schedule of Held-to-maturity Securities [Line Items]
Held-to-maturity Securities, Amortized Cost	263,277	244,417
Held To Maturity Securities, Accumulated Unrecognized Holding Gain	10,778	6,699
Held To Maturity Securities, Accumulated Unrecognized Holding Loss	1,238	1,437
Held-to-maturity Securities, Debt Maturities, Fair Value, Total	272,817	249,679
US Government Agencies
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis	11,284	12,025
Available For Sale Debt Securities, Gross Unrealized Gain, Accumulated In Investments	531	302
Available For Sale Debt Securities, Gross Unrealized Loss, Accumulated In Investments	0	0
Investment securities available-for-sale, at fair value	11,815	12,327
State and Municipal Securities
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis	169,122	169,907
Available For Sale Debt Securities, Gross Unrealized Gain, Accumulated In Investments	11,769	10,711
Available For Sale Debt Securities, Gross Unrealized Loss, Accumulated In Investments	1	0
Investment securities available-for-sale, at fair value	180,890	180,618
Corporate Debt Securities
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis	51,714	48,392
Available For Sale Debt Securities, Gross Unrealized Gain, Accumulated In Investments	253	0
Available For Sale Debt Securities, Gross Unrealized Loss, Accumulated In Investments	1,977	689
Investment securities available-for-sale, at fair value	49,990	47,703
Schedule of Held-to-maturity Securities [Line Items]
Held To Maturity Securities, Accumulated Unrecognized Holding Loss	1,080	960
Asset-backed Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis	166,167	140,773
Available For Sale Debt Securities, Gross Unrealized Gain, Accumulated In Investments	243	15
Available For Sale Debt Securities, Gross Unrealized Loss, Accumulated In Investments	2,109	2,041
Investment securities available-for-sale, at fair value	164,301	138,747
Equity Securities
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis	15,518	11,520
Available For Sale Debt Securities, Gross Unrealized Gain, Accumulated In Investments	236	270
Available For Sale Debt Securities, Gross Unrealized Loss, Accumulated In Investments	427	517
Investment securities available-for-sale, at fair value	15,327	11,273
Residential Government Sponsored Mortgage Backed Securities
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Amortized Cost Basis	114,405	97,611
Available For Sale Debt Securities, Gross Unrealized Gain, Accumulated In Investments	1,703	562
Available For Sale Debt Securities, Gross Unrealized Loss, Accumulated In Investments	138	396
Investment securities available-for-sale, at fair value	115,970	97,777
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	1,432	1,616
Available For Sale Debt Securities, Gross Unrealized Gain, Accumulated In Investments	56	79
Available For Sale Debt Securities, Gross Unrealized Loss, Accumulated In Investments	0	0
Investment securities available-for-sale, at fair value	1,488	1,695
State And Municipal Securities
Schedule of Held-to-maturity Securities [Line Items]
Held-to-maturity Securities, Amortized Cost	244,277	228,417
Held To Maturity Securities, Accumulated Unrecognized Holding Gain	10,251	6,698
Held To Maturity Securities, Accumulated Unrecognized Holding Loss	158	477
Held-to-maturity Securities, Debt Maturities, Fair Value, Total	254,370	234,638
Corporate Debt Securities
Schedule of Held-to-maturity Securities [Line Items]
Held-to-maturity Securities, Amortized Cost	19,000	16,000
Held To Maturity Securities, Accumulated Unrecognized Holding Gain	527	1
Held To Maturity Securities, Accumulated Unrecognized Holding Loss	1,080	960
Held-to-maturity Securities, Debt Maturities, Fair Value, Total	$ 18,447	$ 15,041

Investment Securities - Investm

Investment Securities - Investments Classified by Contractual Maturity Date (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Fiscal Year Maturity [Abstract]
Available-for-sale Securities, Debt Maturities, Next Twelve Months, Amortized Cost Basis	$ 2,219
Available-for-sale Securities, Debt Maturities, Year Two Through Five, Amortized Cost Basis	66,795
Available-for-sale Securities, Debt Maturities, Year Six Through Ten, Amortized Cost Basis	79,474
Available-for-sale Securities, Debt Maturities, after Ten Years, Amortized Cost Basis	365,636
Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Total	514,124
Available-for-sale Equity Securities, Amortized Cost Basis	15,518
Available-for-sale Securities, Amortized Cost Basis	529,642	$ 481,844
Held-to-maturity Securities, Debt Maturities, Net Carrying Amount [Abstract]
Held-to-maturity Securities, Debt Maturities, within One Year, Net Carrying Amount	6,479
Held-to-maturity Securities, Debt Maturities, after One Through Five Years, Net Carrying Amount	63,001
Held-to-maturity Securities, Debt Maturities, after Five Through Ten Years, Net Carrying Amount	22,537
Held-to-maturity Securities, Debt Maturities, after Ten Years, Net Carrying Amount	171,260
Held-to-maturity Securities, Debt Maturities, Amortized Cost, Total	263,277	244,417
Available-for-sale Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract]
Available-for-sale Securities, Debt Maturities, Next Twelve Months, Fair Value	2,247
Available-for-sale Securities, Debt Maturities, Year Two Through Five, Fair Value	70,218
Available-for-sale Securities, Debt Maturities, Year Six Through Ten, Fair Value	79,915
Available-for-sale Securities, Debt Maturities, after Ten Years, Fair Value	372,074
Available-for-sale Securities, Debt Securities, Fair Value	524,454
Available-for-sale Securities, Equity Securities, Fair Value	15,327
Available-for-sale Securities, Fair Value	539,781	490,140
Held-to-maturity Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract]
Held-to-maturity Securities, Debt Maturities, Next Twelve Months, Fair Value	6,579
Held-to-maturity Securities, Debt Maturities, Year Two Through Five, Fair Value	64,787
Held-to-maturity Securities, Debt Maturities, Year Six Through Ten, Fair Value	23,486
Held-to-maturity Securities, Debt Maturities, after Ten Years, Fair Value	177,965
Held-to-maturity Securities, Debt Maturities, Fair Value, Total	$ 272,817	$ 249,679

Investment Securities - Schedul

Investment Securities - Schedule of Realized Gain (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Investments, Debt and Equity Securities [Abstract]
Proceeds from sales	$ 548	$ 5,342	$ 5,916	$ 19,877
Gross realized gains on sales	4	0	134	82
Gross realized losses on sales	0	(4)	(169)	(37)
Total realized (losses) gains, net	$ 4	$ (4)	$ (35)	$ 45

- Summary of Investment Securit

- Summary of Investment Securities, Continuous Unrealized Loss Position (Details) $ in Thousands	Jun. 30, 2016USD ($)Security	Dec. 31, 2015USD ($)Security
Schedule of Investment Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	$ 116,849	$ 214,695
Available For Sale Securities, Continuous Unrealized Loss Position, Less Than 12 Months, Aggregate Losses Accumulated In Investments	2,158	2,886
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	79,969	11,524
Available For Sale Securities, Continuous Unrealized Loss Position 12 Months Or Longer, Aggregate Losses Accumulated In Investments	2,494	757
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	196,818	226,219
Available For Sale Securities, Continuous Unrealized Loss Position, Aggregate Losses Accumulated In Investments	4,652	3,643
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	0	20,658
Held to maturity Securities, Continuous Unrealized Loss Position Less Than 12 Months, Accumulated Loss	0	210
Held-to-maturity Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	13,391	20,112
Held to maturity Securities, Continuous Unrealized Loss Position 12 Months Or Longer, Accumulated Loss	1,238	1,227
Held-to-maturity Securities, Continuous Unrealized Loss Position, Fair Value	13,391	40,770
Held To Maturity Securities, Accumulated Unrecognized Holding Loss	$ 1,238	$ 1,437
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Less than One Year | Security	30	56
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Greater than or Equal to One Year | Security	26	6
Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Less than One Year | Security	0	13
Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Greater than or Equal to One Year | Security	14	21
State And Municipal Securities
Schedule of Investment Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	$ 454
Available For Sale Securities, Continuous Unrealized Loss Position, Less Than 12 Months, Aggregate Losses Accumulated In Investments	1
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	454
Available For Sale Securities, Continuous Unrealized Loss Position, Aggregate Losses Accumulated In Investments	1
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	0	$ 20,658
Held to maturity Securities, Continuous Unrealized Loss Position Less Than 12 Months, Accumulated Loss	0	210
Held-to-maturity Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	10,471	17,072
Held to maturity Securities, Continuous Unrealized Loss Position 12 Months Or Longer, Accumulated Loss	158	267
Held-to-maturity Securities, Continuous Unrealized Loss Position, Fair Value	10,471	37,730
Held To Maturity Securities, Accumulated Unrecognized Holding Loss	$ 158	$ 477
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Less than One Year | Security	1
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Greater than or Equal to One Year | Security	0
Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Less than One Year | Security	0	13
Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Greater than or Equal to One Year | Security	13	20
Corporate Debt Securities
Schedule of Investment Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	$ 15,709	$ 29,015
Available For Sale Securities, Continuous Unrealized Loss Position, Less Than 12 Months, Aggregate Losses Accumulated In Investments	1,286	658
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	9,969	2,969
Available For Sale Securities, Continuous Unrealized Loss Position 12 Months Or Longer, Aggregate Losses Accumulated In Investments	691	31
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	25,678	31,984
Available For Sale Securities, Continuous Unrealized Loss Position, Aggregate Losses Accumulated In Investments	1,977	689
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	0	0
Held to maturity Securities, Continuous Unrealized Loss Position Less Than 12 Months, Accumulated Loss	0	0
Held-to-maturity Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	2,920	3,040
Held to maturity Securities, Continuous Unrealized Loss Position 12 Months Or Longer, Accumulated Loss	1,080	960
Held-to-maturity Securities, Continuous Unrealized Loss Position, Fair Value	2,920	3,040
Held To Maturity Securities, Accumulated Unrecognized Holding Loss	$ 1,080	$ 960
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Less than One Year | Security	4	6
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Greater than or Equal to One Year | Security	3	1
Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Less than One Year | Security	0	0
Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Greater than or Equal to One Year | Security	1	1
Asset-backed Securities [Member]
Schedule of Investment Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	$ 79,267	$ 114,305
Available For Sale Securities, Continuous Unrealized Loss Position, Less Than 12 Months, Aggregate Losses Accumulated In Investments	753	1,726
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	60,329	4,486
Available For Sale Securities, Continuous Unrealized Loss Position 12 Months Or Longer, Aggregate Losses Accumulated In Investments	1,356	315
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	139,596	118,791
Available For Sale Securities, Continuous Unrealized Loss Position, Aggregate Losses Accumulated In Investments	$ 2,109	$ 2,041
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Less than One Year | Security	15	29
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Greater than or Equal to One Year | Security	18	1
Equity Securities
Schedule of Investment Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	$ 1,864	$ 5,200
Available For Sale Securities, Continuous Unrealized Loss Position, Less Than 12 Months, Aggregate Losses Accumulated In Investments	4	175
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	5,846	637
Available For Sale Securities, Continuous Unrealized Loss Position 12 Months Or Longer, Aggregate Losses Accumulated In Investments	423	342
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	7,710	5,837
Available For Sale Securities, Continuous Unrealized Loss Position, Aggregate Losses Accumulated In Investments	$ 427	$ 517
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Less than One Year | Security	1	1
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Greater than or Equal to One Year | Security	2	1
Collateralized Mortgage Backed Securities
Schedule of Investment Securities [Line Items]
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value	$ 19,555	$ 66,175
Available For Sale Securities, Continuous Unrealized Loss Position, Less Than 12 Months, Aggregate Losses Accumulated In Investments	114	327
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value	3,825	3,432
Available For Sale Securities, Continuous Unrealized Loss Position 12 Months Or Longer, Aggregate Losses Accumulated In Investments	24	69
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value	23,380	69,607
Available For Sale Securities, Continuous Unrealized Loss Position, Aggregate Losses Accumulated In Investments	$ 138	$ 396
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Less than One Year | Security	9	20
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Greater than or Equal to One Year | Security	3	3

Investment Securities - Narrati

Investment Securities - Narrative (Details) - USD ($) $ in Millions	Jun. 30, 2016	Dec. 31, 2015
Schedule of Investment Securities [Line Items]
Security Owned and Pledged as Collateral, Fair Value	$ 371.8	$ 371.8

Loans and Allowance for Loan 44

Loans and Allowance for Loan Losses - Schedule of Financing Receivables Originated and Acquired (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	$ 4,812,685	$ 4,199,871
Financing Receivable Covered by Loss Sharing Agreement	0	40,900
Unpaid Principal Balance Of Covered Acquired Loans	0	41,400
Residential construction
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	98,032	76,021
Residential mortgage
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	1,257,851	1,048,458
Consumer and other
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	20,671	18,479
Total commercial
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	3,436,131	3,056,913
Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	2,499,346	2,246,015
Commercial construction
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	452,840	365,009
Commercial and industrial
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	454,482	419,116
Leases
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	29,463	26,773
Originated
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	3,163,357	2,721,216
Originated | Residential construction
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	79,977	59,937
Originated | Residential mortgage
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	526,556	484,895
Originated | Consumer and other
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	14,501	12,970
Originated | Total commercial
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	2,542,323	2,163,414
Originated | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	1,812,009	1,575,555
Originated | Commercial construction
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	366,856	281,591
Originated | Commercial and industrial
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	333,995	279,495
Originated | Leases
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	29,463	26,773
Acquired
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	1,649,328	1,478,655
Acquired | Residential construction
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	18,055	16,084
Acquired | Residential mortgage
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	731,295	563,563
Acquired | Consumer and other
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	6,170	5,509
Acquired | Total commercial
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	893,808	893,499
Acquired | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	687,337	670,460
Acquired | Commercial construction
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	85,984	83,418
Acquired | Commercial and industrial
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	120,487	139,621
Acquired | Leases
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	$ 0	$ 0

Loans and Allowance for Loan 45

Loans and Allowance for Loan Losses - Certain Loans Transferred During Acquisition (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2016USD ($)Security	Dec. 31, 2015Security
Financing Receivable, Recorded Investment [Line Items]
Purchased Loans Contractually Required Principal And Interest	$ 17,168
Contractual cash flows not expected to be collected (non-accretable)	2,072
Fair value of loans acquired	341,700
Unpaid balance of loans acquired	348,100
Purchased Loans Cash Flows Expected To Be Collected	$ 15,096
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Less than One Year | Security	30	56
Certain Loans Acquired in Transfer, Accretable Yield	$ (811)
Purchased Credit Impaired Loans Acquisition Date Fair Value	$ 14,285
Corporate Debt Securities
Financing Receivable, Recorded Investment [Line Items]
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Less than One Year | Security	4	6

Loans and Allowance for Loan 46

Loans and Allowance for Loan Losses - Activity of Purchased Loans with Credit Deterioration (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Receivables [Abstract]
Purchased Loans Contractually Required Principal And Interest	$ 17,168
Purchased Loans With Evidence Of Credit Deterioration As Of The Date Of Purchase	14,285	$ 0
Unpaid balance of loans acquired	348,100
Activity of Loans Purchased with Credit Deterioration Rollforward [Roll Forward]
Balance at beginning of period	142,671	150,382
Accretion	2,223	2,975
Transfer to other real estate owned	2,695	944
Net payments received	19,397	15,369
Net charge-offs	937	725
Other activity, net	900	(2,009)
Balance at end of period	137,050	$ 134,310
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Acquired During Period, at Acquisition, at Fair Value	341,700
Certain Loans Acquired in Transfer, Nonaccretable Difference	(2,072)
Purchased Loans Cash Flows Expected To Be Collected	15,096
Certain Loans Acquired in Transfer, Accretable Yield	(811)
Purchased Credit Impaired Loans Acquisition Date Fair Value	$ 14,285

Loans and Allowance for Loan 47

Loans and Allowance for Loan Losses - Summary of Changes in Accretable Difference on Purchased Loans (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Receivables [Abstract]
Balance at beginning of period	$ 2,853	$ 4,418
Accretion	(2,223)	(2,975)
Purchased Loans Accretable Difference Acquired	811	0
Adjustments to accretable difference due to changes in expected future cash flows	1,433	1,867
Balance at end of period	$ 2,874	$ 3,310

Loans and Allowance for Loan 48

Loans and Allowance for Loan Losses - Analysis of Allowance for Loan Losses by Class of Financing Receivables (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Allowance for Loan and Lease Losses [Roll Forward]
Loans and leases, Allowance, Beginning Balance	$ 32,548	$ 29,351	$ 31,647	$ 30,399
Charge-offs	(854)	(721)	(1,270)	(2,702)
Recoveries	1,449	1,757	2,067	3,154
Provision for loan losses	698	301	1,345	411
Change in FDIC Indemnification Asset		(53)	52	(627)
Loans and leases, Allowance, Ending Balance	33,841	30,635	33,841	30,635
Net Provision For Loan Losses On Covered Loans	0	0	(400)	(200)
Provision for Loan and Lease Losses Covered by the FDIC		100	300	800
Impaired loans	4,307		4,307		$ 4,658
Purchase credit impaired loans	2,212		2,212		2,559
Total specific reserves	6,519		6,519		7,217
General reserves	27,322		27,322		24,430
Individually evaluated for impairment	48,360		48,360		50,520
Purchase credit impaired loans	137,050		137,050		142,671
Loans collectively evaluated for impairment	4,627,275		4,627,275		4,006,680
Loans and Leases Receivable, Net	4,812,685		4,812,685		4,199,871
Residential construction
Allowance for Loan and Lease Losses [Roll Forward]
Loans and leases, Allowance, Beginning Balance	552	411	466	570
Charge-offs	0	0	0	0
Recoveries	6	4	13	34
Provision for loan losses	(21)	48	58	(144)
Change in FDIC Indemnification Asset		0	0	3
Loans and leases, Allowance, Ending Balance	537	463	537	463
Impaired loans	0		0		53
Purchase credit impaired loans	1		1		5
Total specific reserves	1		1		58
General reserves	536		536		408
Individually evaluated for impairment	0		0		825
Purchase credit impaired loans	167		167		709
Loans collectively evaluated for impairment	97,865		97,865		74,487
Loans and Leases Receivable, Net	98,032		98,032		76,021
Residential mortgage
Allowance for Loan and Lease Losses [Roll Forward]
Loans and leases, Allowance, Beginning Balance	8,020	9,345	8,201	9,313
Charge-offs	(407)	(399)	(623)	(687)
Recoveries	790	277	932	469
Provision for loan losses	(382)	(1,107)	(705)	(912)
Change in FDIC Indemnification Asset		22	216	(45)
Loans and leases, Allowance, Ending Balance	8,021	8,138	8,021	8,138
Impaired loans	1,268		1,268		1,562
Purchase credit impaired loans	976		976		971
Total specific reserves	2,244		2,244		2,533
General reserves	5,777		5,777		5,668
Individually evaluated for impairment	17,865		17,865		18,158
Purchase credit impaired loans	40,853		40,853		41,336
Loans collectively evaluated for impairment	1,199,133		1,199,133		988,964
Loans and Leases Receivable, Net	1,257,851		1,257,851		1,048,458
Consumer and other
Allowance for Loan and Lease Losses [Roll Forward]
Loans and leases, Allowance, Beginning Balance	266	215	320	191
Charge-offs	(10)	(210)	(19)	(266)
Recoveries	9	109	67	120
Provision for loan losses	10	75	(70)	147
Change in FDIC Indemnification Asset		11	(23)	8
Loans and leases, Allowance, Ending Balance	275	200	275	200
Impaired loans	14		14		49
Purchase credit impaired loans	2		2		6
Total specific reserves	16		16		55
General reserves	259		259		265
Individually evaluated for impairment	61		61		129
Purchase credit impaired loans	138		138		199
Loans collectively evaluated for impairment	20,472		20,472		18,151
Loans and Leases Receivable, Net	20,671		20,671		18,479
Commercial real estate
Allowance for Loan and Lease Losses [Roll Forward]
Loans and leases, Allowance, Beginning Balance	13,921	12,802	13,471	12,685
Charge-offs	(386)	(14)	(574)	(1,560)
Recoveries	128	375	181	552
Provision for loan losses	784	(228)	1,373	1,345
Change in FDIC Indemnification Asset		5	(4)	(82)
Loans and leases, Allowance, Ending Balance	14,447	12,940	14,447	12,940
Impaired loans	1,731		1,731		2,166
Purchase credit impaired loans	916		916		1,176
Total specific reserves	2,647		2,647		3,342
General reserves	11,800		11,800		10,129
Individually evaluated for impairment	25,164		25,164		26,498
Purchase credit impaired loans	81,009		81,009		85,213
Loans collectively evaluated for impairment	2,393,173		2,393,173		2,134,304
Loans and Leases Receivable, Net	2,499,346		2,499,346		2,246,015
Commercial construction
Allowance for Loan and Lease Losses [Roll Forward]
Loans and leases, Allowance, Beginning Balance	5,214	3,377	4,525	4,311
Charge-offs	0	(74)	0	(80)
Recoveries	385	719	589	1,493
Provision for loan losses	(357)	1,578	234	264
Change in FDIC Indemnification Asset		(53)	(106)	(441)
Loans and leases, Allowance, Ending Balance	5,242	5,547	5,242	5,547
Impaired loans	132		132		182
Purchase credit impaired loans	256		256		354
Total specific reserves	388		388		536
General reserves	4,854		4,854		3,989
Individually evaluated for impairment	3,212		3,212		3,223
Purchase credit impaired loans	12,603		12,603		12,497
Loans collectively evaluated for impairment	437,025		437,025		349,289
Loans and Leases Receivable, Net	452,840		452,840		365,009
Commercial and industrial
Allowance for Loan and Lease Losses [Roll Forward]
Loans and leases, Allowance, Beginning Balance	4,468	3,116	4,586	3,226
Charge-offs	(51)	(24)	(54)	(109)
Recoveries	131	273	285	486
Provision for loan losses	662	(72)	424	(278)
Change in FDIC Indemnification Asset		(38)	(31)	(70)
Loans and leases, Allowance, Ending Balance	5,210	3,255	5,210	3,255
Impaired loans	1,162		1,162		646
Purchase credit impaired loans	61		61		47
Total specific reserves	1,223		1,223		693
General reserves	3,987		3,987		3,893
Individually evaluated for impairment	2,058		2,058		1,687
Purchase credit impaired loans	2,280		2,280		2,717
Loans collectively evaluated for impairment	450,144		450,144		414,712
Loans and Leases Receivable, Net	454,482		454,482		419,116
Leases
Allowance for Loan and Lease Losses [Roll Forward]
Loans and leases, Allowance, Beginning Balance	107	85	78	103
Charge-offs	0	0	0	0
Recoveries	0	0	0	0
Provision for loan losses	2	7	31	(11)
Change in FDIC Indemnification Asset		0	0	0
Loans and leases, Allowance, Ending Balance	109	$ 92	109	$ 92
Impaired loans	0		0		0
Purchase credit impaired loans	0		0		0
Total specific reserves	0		0		0
General reserves	109		109		78
Individually evaluated for impairment	0		0		0
Purchase credit impaired loans	0		0		0
Loans collectively evaluated for impairment	29,463		29,463		26,773
Loans and Leases Receivable, Net	$ 29,463		$ 29,463		$ 26,773

Loans and Allowance for Loan 49

Loans and Allowance for Loan Losses - Schedule of Impaired Loans (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Accounts, Notes, Loans and Financing Receivable [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment	$ 26,623	$ 30,763
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	27,394	31,137
Impaired Financing Receivable, Allowances for Loan Losses Allocated	4,307	4,658
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	21,883	19,854
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	21,843	20,355
Originated
Accounts, Notes, Loans and Financing Receivable [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment	19,256	23,258
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	19,168	23,213
Impaired Financing Receivable, Allowances for Loan Losses Allocated	2,808	3,591
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	18,163	16,884
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	18,101	16,839
Originated | Residential construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment	0	343
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	0	342
Impaired Financing Receivable, Allowances for Loan Losses Allocated	0	42
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	0	306
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	0	306
Originated | Residential mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment	5,355	8,159
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	5,331	8,141
Impaired Financing Receivable, Allowances for Loan Losses Allocated	455	860
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	4,239	2,154
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	4,232	2,145
Originated | Consumer and other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment	29	10
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	29	10
Impaired Financing Receivable, Allowances for Loan Losses Allocated	9	1
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	0	0
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	0	0
Acquired
Accounts, Notes, Loans and Financing Receivable [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment	7,367	7,505
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	8,226	7,924
Impaired Financing Receivable, Allowances for Loan Losses Allocated	1,499	1,067
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	3,720	2,970
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	3,742	3,516
Acquired | Residential construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment		109
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance		109
Impaired Financing Receivable, Allowances for Loan Losses Allocated		11
Impaired Financing Receivable, with No Related Allowance, Recorded Investment		68
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance		588
Acquired | Residential mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment	5,502	5,302
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	5,957	5,632
Impaired Financing Receivable, Allowances for Loan Losses Allocated	813	702
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	2,798	2,572
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	2,819	2,597
Acquired | Consumer and other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment	31	119
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	35	119
Impaired Financing Receivable, Allowances for Loan Losses Allocated	5	49
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	0	0
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	0	0
Commercial real estate | Originated
Accounts, Notes, Loans and Financing Receivable [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment	10,839	11,750
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	10,789	11,736
Impaired Financing Receivable, Allowances for Loan Losses Allocated	1,571	1,990
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	12,609	13,099
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	12,561	13,068
Commercial real estate | Acquired
Accounts, Notes, Loans and Financing Receivable [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment	1,237	1,374
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	1,256	1,390
Impaired Financing Receivable, Allowances for Loan Losses Allocated	160	175
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	578	330
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	580	331
Commercial construction | Originated
Accounts, Notes, Loans and Financing Receivable [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment	1,300	1,537
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	1,297	1,533
Impaired Financing Receivable, Allowances for Loan Losses Allocated	95	123
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	1,315	1,325
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	1,308	1,320
Commercial construction | Acquired
Accounts, Notes, Loans and Financing Receivable [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment	266	369
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	263	370
Impaired Financing Receivable, Allowances for Loan Losses Allocated	36	59
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	343	0
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	343	0
Commercial and industrial | Originated
Accounts, Notes, Loans and Financing Receivable [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment	1,733	1,459
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	1,722	1,451
Impaired Financing Receivable, Allowances for Loan Losses Allocated	678	575
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	0	0
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	0	0
Commercial and industrial | Acquired
Accounts, Notes, Loans and Financing Receivable [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment	331	232
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	715	304
Impaired Financing Receivable, Allowances for Loan Losses Allocated	485	71
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	1	0
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	$ 0	$ 0

Loans and Allowance for Loan 50

Loans and Allowance for Loan Losses - Schedule of Average Recorded Investments and Interest Income Recognized on Impaired Loans (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Accounts, Notes, Loans and Financing Receivable [Line Items]
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	$ 27,698	$ 21,274	$ 28,803	$ 23,417
Impaired Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method	217	197	434	327
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	21,434	39,622	21,452	36,533
Impaired Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method	505	156	845	315
Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	12,020	12,557	12,465	12,561
Impaired Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method	103	112	206	193
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	13,434	22,370	13,619	20,839
Impaired Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method	129	141	259	239
Commercial construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	1,388	1,522	1,529	1,648
Impaired Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method	15	20	29	38
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	1,893	2,627	1,815	2,608
Impaired Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method	355	15	543	30
Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	1,705	1,447	1,680	1,440
Impaired Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method	34	17	61	29
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	146	406	136	334
Impaired Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method	1	0	0	0
Residential construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	343	347	369	375
Impaired Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method	4	4	5	7
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	0	112	68	113
Impaired Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method	0	0	0	0
Residential mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	12,200	5,390	12,723	7,335
Impaired Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method	61	44	133	59
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	5,941	14,026	5,794	12,558
Impaired Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method	20	0	43	46
Consumer and other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	42	11	37	58
Impaired Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method	0	0	0	1
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	20	81	20	81
Impaired Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method	$ 0	$ 0	$ 0	$ 0

Loans and Allowance for Loan 51

Loans and Allowance for Loan Losses - Aging of Financing Receivables (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Current	$ 4,786,950	$ 4,170,919
Financing Receivable, Recorded Investment, Nonaccrual Status	17,163	18,709
Loans and Leases Receivable, Net	4,812,685	4,199,871
Commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and Leases Receivable, Net	2,499,346	2,246,015
Commercial construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and Leases Receivable, Net	452,840	365,009
Commercial and industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and Leases Receivable, Net	454,482	419,116
Leases
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and Leases Receivable, Net	29,463	26,773
30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Total Past Due	5,650	7,012
60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Total Past Due	2,912	3,228
Greater than 90 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Total Past Due	10	3
Residential construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and Leases Receivable, Net	98,032	76,021
Residential mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and Leases Receivable, Net	1,257,851	1,048,458
Consumer and other
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and Leases Receivable, Net	20,671	18,479
Originated
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Current	3,153,655	2,711,108
Financing Receivable, Recorded Investment, Nonaccrual Status	5,407	6,623
Loans and Leases Receivable, Net	3,163,357	2,721,216
Originated | Commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Current	1,807,314	1,571,034
Financing Receivable, Recorded Investment, Nonaccrual Status	1,776	3,157
Loans and Leases Receivable, Net	1,812,009	1,575,555
Originated | Commercial construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Current	366,574	281,345
Financing Receivable, Recorded Investment, Nonaccrual Status	117	164
Loans and Leases Receivable, Net	366,856	281,591
Originated | Commercial and industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Current	333,463	279,116
Financing Receivable, Recorded Investment, Nonaccrual Status	124	269
Loans and Leases Receivable, Net	333,995	279,495
Originated | Leases
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Current	29,453	26,773
Financing Receivable, Recorded Investment, Nonaccrual Status	0	0
Loans and Leases Receivable, Net	29,463	26,773
Originated | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Total Past Due	3,964	2,697
Originated | 30-59 Days Past Due | Commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Total Past Due	2,919	800
Originated | 30-59 Days Past Due | Commercial construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Total Past Due	85	82
Originated | 30-59 Days Past Due | Commercial and industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Total Past Due	220	89
Originated | 30-59 Days Past Due | Leases
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Total Past Due	0	0
Originated | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Total Past Due	321	788
Originated | 60-89 Days Past Due | Commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Total Past Due	0	564
Originated | 60-89 Days Past Due | Commercial construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Total Past Due	80	0
Originated | 60-89 Days Past Due | Commercial and industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Total Past Due	188	21
Originated | 60-89 Days Past Due | Leases
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Total Past Due	0	0
Originated | Greater than 90 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Total Past Due	10	0
Originated | Greater than 90 Days Past Due | Commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Total Past Due	0	0
Originated | Greater than 90 Days Past Due | Commercial construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Total Past Due	0	0
Originated | Greater than 90 Days Past Due | Commercial and industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Total Past Due	0	0
Originated | Greater than 90 Days Past Due | Leases
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Total Past Due	10	0
Originated | Residential construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Current	79,977	59,631
Financing Receivable, Recorded Investment, Nonaccrual Status	0	306
Loans and Leases Receivable, Net	79,977	59,937
Originated | Residential construction | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Total Past Due	0	0
Originated | Residential construction | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Total Past Due	0	0
Originated | Residential construction | Greater than 90 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Total Past Due	0	0
Originated | Residential mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Current	522,443	480,251
Financing Receivable, Recorded Investment, Nonaccrual Status	3,370	2,727
Loans and Leases Receivable, Net	526,556	484,895
Originated | Residential mortgage | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Total Past Due	690	1,714
Originated | Residential mortgage | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Total Past Due	53	203
Originated | Residential mortgage | Greater than 90 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Total Past Due	0	0
Originated | Consumer and other
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Current	14,431	12,958
Financing Receivable, Recorded Investment, Nonaccrual Status	20	0
Loans and Leases Receivable, Net	14,501	12,970
Originated | Consumer and other | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Total Past Due	50	12
Originated | Consumer and other | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Total Past Due	0	0
Originated | Consumer and other | Greater than 90 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Total Past Due	0	0
Acquired
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Current	1,633,295	1,459,811
Financing Receivable, Recorded Investment, Nonaccrual Status	11,756	12,086
Loans and Leases Receivable, Net	1,649,328	1,478,655
Acquired | Commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Current	681,672	664,153
Financing Receivable, Recorded Investment, Nonaccrual Status	3,676	4,275
Loans and Leases Receivable, Net	687,337	670,460
Acquired | Commercial construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Current	85,138	82,994
Financing Receivable, Recorded Investment, Nonaccrual Status	604	394
Loans and Leases Receivable, Net	85,984	83,418
Acquired | Commercial and industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Current	119,817	139,130
Financing Receivable, Recorded Investment, Nonaccrual Status	261	169
Loans and Leases Receivable, Net	120,487	139,621
Acquired | Leases
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans and Leases Receivable, Net	0	0
Acquired | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Total Past Due	1,686	4,315
Acquired | 30-59 Days Past Due | Commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Total Past Due	433	893
Acquired | 30-59 Days Past Due | Commercial construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Total Past Due	42	10
Acquired | 30-59 Days Past Due | Commercial and industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Total Past Due	244	69
Acquired | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Total Past Due	2,591	2,440
Acquired | 60-89 Days Past Due | Commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Total Past Due	1,556	1,139
Acquired | 60-89 Days Past Due | Commercial construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Total Past Due	200	20
Acquired | 60-89 Days Past Due | Commercial and industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Total Past Due	165	250
Acquired | Greater than 90 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Total Past Due	0	3
Acquired | Greater than 90 Days Past Due | Commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Total Past Due	0	0
Acquired | Greater than 90 Days Past Due | Commercial construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Total Past Due	0	0
Acquired | Greater than 90 Days Past Due | Commercial and industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Total Past Due	0	3
Acquired | Residential construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Current	18,055	15,891
Financing Receivable, Recorded Investment, Nonaccrual Status	0	177
Loans and Leases Receivable, Net	18,055	16,084
Acquired | Residential construction | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Total Past Due	0	0
Acquired | Residential construction | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Total Past Due	0	16
Acquired | Residential construction | Greater than 90 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Total Past Due	0	0
Acquired | Residential mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Current	722,527	552,348
Financing Receivable, Recorded Investment, Nonaccrual Status	7,171	6,939
Loans and Leases Receivable, Net	731,295	563,563
Acquired | Residential mortgage | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Total Past Due	944	3,266
Acquired | Residential mortgage | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Total Past Due	653	1,010
Acquired | Residential mortgage | Greater than 90 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Total Past Due	0	0
Acquired | Consumer and other
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Current	6,086	5,295
Financing Receivable, Recorded Investment, Nonaccrual Status	44	132
Loans and Leases Receivable, Net	6,170	5,509
Acquired | Consumer and other | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Total Past Due	23	77
Acquired | Consumer and other | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Total Past Due	17	5
Acquired | Consumer and other | Greater than 90 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing Receivable, Recorded Investment, Total Past Due	$ 0	$ 0

Loans and Allowance for Loan 52

Loans and Allowance for Loan Losses - Financing Receivable Credit Quality indicators (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	$ 4,812,685	$ 4,199,871
Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	2,499,346	2,246,015
Commercial construction
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	452,840	365,009
Commercial and industrial
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	454,482	419,116
Leases
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	29,463	26,773
Originated
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	3,163,357	2,721,216
Originated | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	1,812,009	1,575,555
Originated | Commercial construction
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	366,856	281,591
Originated | Commercial and industrial
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	333,995	279,495
Originated | Leases
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	29,463	26,773
Acquired
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	1,649,328	1,478,655
Acquired | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	687,337	670,460
Acquired | Commercial construction
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	85,984	83,418
Acquired | Commercial and industrial
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	120,487	139,621
Acquired | Leases
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	0	0
Pass
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	4,548,113	3,913,756
Pass | Originated
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	3,044,227	2,594,778
Pass | Originated | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	1,743,190	1,499,554
Pass | Originated | Commercial construction
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	358,028	272,960
Pass | Originated | Commercial and industrial
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	324,462	270,116
Pass | Originated | Leases
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	29,463	26,773
Pass | Acquired
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	1,503,886	1,318,978
Pass | Acquired | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	622,257	596,973
Pass | Acquired | Commercial construction
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	70,828	69,473
Pass | Acquired | Commercial and industrial
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	111,798	127,911
Special Mention
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	144,758	160,534
Special Mention | Originated
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	70,504	80,922
Special Mention | Originated | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	38,483	48,775
Special Mention | Originated | Commercial construction
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	5,813	6,434
Special Mention | Originated | Commercial and industrial
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	4,391	4,855
Special Mention | Originated | Leases
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	0	0
Special Mention | Acquired
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	74,254	79,612
Special Mention | Acquired | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	29,075	31,318
Special Mention | Acquired | Commercial construction
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	6,361	5,655
Special Mention | Acquired | Commercial and industrial
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	3,659	3,273
Substandard
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	119,251	125,206
Substandard | Originated
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	48,626	45,516
Substandard | Originated | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	30,336	27,226
Substandard | Originated | Commercial construction
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	3,015	2,197
Substandard | Originated | Commercial and industrial
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	5,142	4,524
Substandard | Originated | Leases
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	0	0
Substandard | Acquired
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	70,625	79,690
Substandard | Acquired | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	35,793	42,169
Substandard | Acquired | Commercial construction
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	8,677	8,163
Substandard | Acquired | Commercial and industrial
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	5,030	8,437
Doubtful
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	562	375
Doubtful | Originated
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	0	0
Doubtful | Originated | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	0	0
Doubtful | Originated | Commercial construction
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	0	0
Doubtful | Originated | Commercial and industrial
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	0	0
Doubtful | Originated | Leases
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	0	0
Doubtful | Acquired
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	562	375
Doubtful | Acquired | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	211	0
Doubtful | Acquired | Commercial construction
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	118	127
Doubtful | Acquired | Commercial and industrial
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	0	0
Loss
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	1	0
Loss | Originated
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	0	0
Loss | Originated | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	0	0
Loss | Originated | Commercial construction
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	0	0
Loss | Originated | Commercial and industrial
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	0	0
Loss | Originated | Leases
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	0	0
Loss | Acquired
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	1	0
Loss | Acquired | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	1	0
Loss | Acquired | Commercial construction
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	0	0
Loss | Acquired | Commercial and industrial
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	0	0
Residential construction
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	98,032	76,021
Residential construction | Originated
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	79,977	59,937
Residential construction | Acquired
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	18,055	16,084
Residential construction | Pass | Originated
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	79,107	59,265
Residential construction | Pass | Acquired
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	17,805	14,541
Residential construction | Special Mention | Originated
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	870	24
Residential construction | Special Mention | Acquired
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	0	470
Residential construction | Substandard | Originated
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	0	648
Residential construction | Substandard | Acquired
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	250	1,073
Residential construction | Doubtful | Originated
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	0	0
Residential construction | Doubtful | Acquired
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	0	0
Residential construction | Loss | Originated
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	0	0
Residential construction | Loss | Acquired
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	0	0
Residential mortgage
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	1,257,851	1,048,458
Residential mortgage | Originated
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	526,556	484,895
Residential mortgage | Acquired
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	731,295	563,563
Residential mortgage | Pass | Originated
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	495,854	453,544
Residential mortgage | Pass | Acquired
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	675,179	504,836
Residential mortgage | Special Mention | Originated
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	20,598	20,440
Residential mortgage | Special Mention | Acquired
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	35,060	38,763
Residential mortgage | Substandard | Originated
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	10,104	10,911
Residential mortgage | Substandard | Acquired
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	20,823	19,716
Residential mortgage | Doubtful | Originated
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	0	0
Residential mortgage | Doubtful | Acquired
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	233	248
Residential mortgage | Loss | Originated
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	0	0
Residential mortgage | Loss | Acquired
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	0	0
Consumer and other
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	20,671	18,479
Consumer and other | Originated
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	14,501	12,970
Consumer and other | Acquired
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	6,170	5,509
Consumer and other | Pass | Originated
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	14,123	12,566
Consumer and other | Pass | Acquired
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	6,019	5,244
Consumer and other | Special Mention | Originated
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	349	394
Consumer and other | Special Mention | Acquired
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	99	133
Consumer and other | Substandard | Originated
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	29	10
Consumer and other | Substandard | Acquired
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	52	132
Consumer and other | Doubtful | Originated
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	0	0
Consumer and other | Doubtful | Acquired
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	0	0
Consumer and other | Loss | Originated
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	0	0
Consumer and other | Loss | Acquired
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Net	$ 0	$ 0

Loans and Allowance for Loan 53

Loans and Allowance for Loan Losses - Troubled Debt Restructurings on Financing Receivables (Details) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2016USD ($)contract	Dec. 31, 2015USD ($)contract
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment	$ 10,544	$ 15,498
Financing Receivables, Modifications, Allowance For Loan Losses Allocated	$ 1,183	$ 1,396
Total Number Of Contracts | contract	32	38
Commercial real estate
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment	$ 2,107	$ 6,658
Financing Receivables, Modifications, Allowance For Loan Losses Allocated	172	331
Commercial construction
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment	811	939
Financing Receivables, Modifications, Allowance For Loan Losses Allocated	4	16
Commercial and industrial
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment	1,127	1,186
Financing Receivables, Modifications, Allowance For Loan Losses Allocated	615	484
Accrual
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment	$ 9,839	$ 14,718
Total Number Of Contracts | contract	26	35
Accrual | Commercial real estate
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment	$ 1,673	$ 5,938
Accrual | Commercial construction
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment	811	893
Accrual | Commercial and industrial
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment	1,127	1,186
Nonaccrual
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment	$ 705	$ 780
Total Number Of Contracts | contract	6	3
Nonaccrual | Commercial real estate
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment	$ 434	$ 720
Nonaccrual | Commercial construction
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment	0	46
Nonaccrual | Commercial and industrial
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment	0	0
Residential mortgage
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment	6,489	6,705
Financing Receivables, Modifications, Allowance For Loan Losses Allocated	391	1
Residential mortgage | Accrual
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment	6,218	6,691
Residential mortgage | Nonaccrual
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment	271	14
Consumer and other
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment	10	10
Financing Receivables, Modifications, Allowance For Loan Losses Allocated	1	564
Consumer and other | Accrual
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment	10	10
Consumer and other | Nonaccrual
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Recorded Investment	$ 0	$ 0

Loans and Allowance for Loan 54

Loans and Allowance for Loan Losses - Troubled Debt Restructurings by Modification Category (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 965	$ 682	$ 1,279	$ 2,381
Commercial real estate
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Post-Modification Recorded Investment	261	358	575	1,638
Commercial and Industrial [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Post-Modification Recorded Investment	433	324
Commercial and industrial
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Post-Modification Recorded Investment			433	743
Residential Mortgage
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Post-Modification Recorded Investment	271	0	271	0
Term
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Post-Modification Recorded Investment	433	93	433	510
Term | Commercial real estate
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Post-Modification Recorded Investment	0	0	0	417
Term | Commercial and Industrial [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Post-Modification Recorded Investment	433	93
Term | Commercial and industrial
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Post-Modification Recorded Investment			433	93
Term | Residential Mortgage
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Post-Modification Recorded Investment	0	0	0	0
Interest Only Modification
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Post-Modification Recorded Investment	532	589	532	589
Interest Only Modification | Commercial real estate
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Post-Modification Recorded Investment	261	358	261	358
Interest Only Modification | Commercial and Industrial [Member]
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Post-Modification Recorded Investment	0	231
Interest Only Modification | Commercial and industrial
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Post-Modification Recorded Investment			0	231
Interest Only Modification | Residential Mortgage
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Post-Modification Recorded Investment	$ 271	$ 0	271	0
Payment
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Post-Modification Recorded Investment			314	419
Payment | Commercial real estate
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Post-Modification Recorded Investment			314	0
Payment | Commercial and industrial
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Post-Modification Recorded Investment			0	419
Payment | Residential Mortgage
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Post-Modification Recorded Investment			$ 0	0
Combination
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Post-Modification Recorded Investment				863
Combination | Commercial real estate
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Post-Modification Recorded Investment				863
Combination | Commercial and industrial
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Post-Modification Recorded Investment				0
Combination | Residential Mortgage
Financing Receivable, Modifications [Line Items]
Financing Receivable, Modifications, Post-Modification Recorded Investment				$ 0

Loans and Allowance for Loan 55

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 ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Receivables [Abstract]
Loans Receivable Held-for-sale, Net	$ 41,703	$ 36,315	$ 41,703	$ 36,315	$ 39,470
Proceeds from Sale of Mortgage Loans Held-for-sale	91,357	86,049	175,445	175,971
Mortgage fees	$ 2,444	$ 2,562	$ 4,987	$ 4,930

Loans and Allowance for Loan 56

Loans and Allowance for Loan Losses - Narrative (Details) - USD ($)	Jun. 30, 2016	Dec. 31, 2015
Receivables [Abstract]
Unpaid balance of loans acquired	$ 348,100,000
Loans and Leases Receivable, Collateral for Secured Borrowings	2,030,000,000	$ 1,680,000,000
Mortgage Loans in Process of Foreclosure, Amount	600,000	2,500,000
Loans and Leases Receivable, Impaired, Commitment to Lend	0	$ 0
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Acquired During Period, at Acquisition, at Fair Value	$ 341,700,000

Derivatives - Schedule of Inter

Derivatives - Schedule of Interest Rate Derivatives (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Interest Rate Derivatives [Line Items]
Derivative Asset, Fair Value, Gross Asset	$ 8,563	$ 3,749
Not Designated as Hedging Instrument | Interest Rate Swap
Interest Rate Derivatives [Line Items]
Derivative Asset, Notional Amount	68,438	63,320
Derivative Liability, Notional Amount	68,438	63,320
Not Designated as Hedging Instrument | Interest Rate Swap | Other Assets
Interest Rate Derivatives [Line Items]
Derivative Asset, Fair Value, Gross Asset	2,753	1,332
Not Designated as Hedging Instrument | Interest Rate Swap | Accrued Expenses and Other Liabilities
Interest Rate Derivatives [Line Items]
Derivative Liability, Fair Value, Gross Liability	2,753	1,332
Designated as Hedging Instrument | Interest Rate Swap
Interest Rate Derivatives [Line Items]
Derivative Liability, Notional Amount	125,000	125,000
Designated as Hedging Instrument | Interest Rate Swap | Accrued Expenses and Other Liabilities
Interest Rate Derivatives [Line Items]
Derivative Liability, Fair Value, Gross Liability	$ 3,057	$ 1,085

Derivatives - Summary of Offset

Derivatives - Summary of Offsetting Assets and Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Derivative [Line Items]
Derivative Asset, Fair Value, Gross Asset	$ 8,563	$ 3,749
Interest rate swaps - not designated	8,563	3,749
Derivative, Collateral, Right to Reclaim Cash	5,810	2,417
Derivative Asset, Fair Value, Amount Not Offset Against Collateral	2,753	1,332
Derivative Assets
Derivative [Line Items]
Derivative Asset, Fair Value, Gross Asset	2,753	1,332
Interest rate swaps - not designated	2,753	1,332
Derivative, Collateral, Right to Reclaim Cash	0	0
Derivative Asset, Fair Value, Amount Not Offset Against Collateral	2,753	1,332
Derivative Liabilities
Derivative [Line Items]
Derivative Asset, Fair Value, Gross Asset	5,810	2,417
Interest rate swaps - not designated	5,810	2,417
Derivative, Collateral, Right to Reclaim Cash	5,810	2,417
Derivative Asset, Fair Value, Amount Not Offset Against Collateral	$ 0	$ 0

Derivatives - Schedule of Cash

Derivatives - Schedule of Cash Flow Hedges Included in Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Amount of net gain (losses) recorded in OCI (effective portion)	$ (226)	$ 348	$ (1,242)	$ (468)

Derivatives - Narrative (Detail

Derivatives - Narrative (Details) - USD ($)	3 Months Ended			6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Mar. 31, 2013	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Derivative [Line Items]
Derivative, Maturity Date				Mar. 18, 2019
Accumulated other comprehensive loss	$ (6,761,000)			$ (6,761,000)		$ (7,329,000)
Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months				1,300,000
Gain (Loss) on Interest Rate Cash Flow Hedge Ineffectiveness	0	$ 0		0	$ 0
Derivative, Net Liability Position, Aggregate Fair Value	5,800,000			5,800,000
Collateral Already Posted, Aggregate Fair Value	8,600,000			8,600,000
2013 Interest Rate Swap Derivative Contract
Derivative [Line Items]
Derivative, Notional Amount			$ 125,000,000
Amount Designated To Unsecured Variable Rate Money Market Funding Arrangement			$ 125,000,000
Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges
Derivative [Line Items]
Accumulated other comprehensive loss	$ (1,900,000)			$ (1,900,000)

Borrowings - Schedule of Short

Borrowings - Schedule of Short Term Borrowings (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Debt Disclosure [Abstract]
Repurchase agreements	$ 66,491	$ 64,373
Federal funds purchased	24,845	19,839
Advances from FHLB	15,000	4,000
Revolving credit facility	0	15,000
Total short-term borrowings	$ 106,336	$ 103,212

Borrowings - Schedule of Long-T

Borrowings - Schedule of Long-Term Debt (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Debt Disclosure [Abstract]
Advances from FHLB	$ 130,856	$ 81,371
Subordinated notes	70,719	70,790
Junior subordinated debentures	44,208	36,190
Total long-term debt	$ 245,783	$ 188,351

Borrowings - Schedule of Federa

Borrowings - Schedule of Federal Home Loan Bank Advances (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2016	Dec. 31, 2015
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Long-term Federal Home Loan Bank Advances, Noncurrent	$ 127,000
Federal Home Loan Bank, Advances, General Debt Obligations, Maximum Amount Available	1,110,000
Advances from FHLB	$ 130,856	$ 81,371
Minimum
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Debt Instrument, Maturity Date Range, Start	2,017
Maximum
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Debt Instrument, Maturity Date Range, Start	2,021

Borrowings - Schedule of Junior

Borrowings - Schedule of Junior Subordinated Debt (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2016	Dec. 31, 2015
Short-term Debt [Line Items]
Junior Subordinated Debenture Owed to Unconsolidated Subsidiary Trust, Including Unamortized Discount	$ 50,519	$ 40,209
Unamortized debt issuance costs	181	186
Junior subordinated debentures	$ 44,208	36,190
BNC Bancorp Capital Trust I
Short-term Debt [Line Items]
Shares issued	5,000
Junior Subordinated Debenture Owed to Unconsolidated Subsidiary Trust, Including Unamortized Discount	$ 5,155	5,155
BNC Bancorp Capital Trust II
Short-term Debt [Line Items]
Shares issued	6,000
Junior Subordinated Debenture Owed to Unconsolidated Subsidiary Trust, Including Unamortized Discount	$ 6,186	6,186
BNC Capital Trust III
Short-term Debt [Line Items]
Shares issued	5,000
Junior Subordinated Debenture Owed to Unconsolidated Subsidiary Trust, Including Unamortized Discount	$ 5,155	5,155
BNC Capital Trust IV
Short-term Debt [Line Items]
Shares issued	7,000
Junior Subordinated Debenture Owed to Unconsolidated Subsidiary Trust, Including Unamortized Discount	$ 7,217	7,217
Southcoast Capital Trust III [Member]
Short-term Debt [Line Items]
Shares issued	10,000
Junior Subordinated Debenture Owed to Unconsolidated Subsidiary Trust, Including Unamortized Discount	$ 10,310	0
Valley Financial (VA) Statutory Trust I
Short-term Debt [Line Items]
Shares issued	4,000
Junior Subordinated Debenture Owed to Unconsolidated Subsidiary Trust, Including Unamortized Discount	$ 4,124	4,124
Valley Financial (VA) Statutory Trust II
Short-term Debt [Line Items]
Shares issued	7,000
Junior Subordinated Debenture Owed to Unconsolidated Subsidiary Trust, Including Unamortized Discount	$ 7,217	7,217
Valley Financial Statutory Trust III
Short-term Debt [Line Items]
Shares issued	5,000
Junior Subordinated Debenture Owed to Unconsolidated Subsidiary Trust, Including Unamortized Discount	$ 5,155	5,155
Junior Subordinated Debt [Member]
Short-term Debt [Line Items]
Unamortized discount	$ 6,130	$ 3,833
Junior Subordinated Debt [Member] | London Interbank Offered Rate (LIBOR) [Member] | BNC Bancorp Capital Trust I
Short-term Debt [Line Items]
Spread on variable rate	3.25%
Junior Subordinated Debt [Member] | London Interbank Offered Rate (LIBOR) [Member] | BNC Bancorp Capital Trust II
Short-term Debt [Line Items]
Spread on variable rate	2.80%
Junior Subordinated Debt [Member] | London Interbank Offered Rate (LIBOR) [Member] | BNC Capital Trust III
Short-term Debt [Line Items]
Spread on variable rate	2.40%
Junior Subordinated Debt [Member] | London Interbank Offered Rate (LIBOR) [Member] | BNC Capital Trust IV
Short-term Debt [Line Items]
Spread on variable rate	1.70%
Junior Subordinated Debt [Member] | London Interbank Offered Rate (LIBOR) [Member] | Southcoast Capital Trust III [Member]
Short-term Debt [Line Items]
Spread on variable rate	0.60%
Junior Subordinated Debt [Member] | London Interbank Offered Rate (LIBOR) [Member] | Valley Financial (VA) Statutory Trust I
Short-term Debt [Line Items]
Spread on variable rate	3.10%
Junior Subordinated Debt [Member] | London Interbank Offered Rate (LIBOR) [Member] | Valley Financial (VA) Statutory Trust II
Short-term Debt [Line Items]
Spread on variable rate	1.70%
Junior Subordinated Debt [Member] | London Interbank Offered Rate (LIBOR) [Member] | Valley Financial Statutory Trust III
Short-term Debt [Line Items]
Spread on variable rate	1.70%

Borrowings - Additional Informa

Borrowings - Additional Information (Details) - USD ($)	6 Months Ended
	Jun. 30, 2016	Dec. 31, 2015
Short-term Debt [Line Items]
Federal Funds Line of Credit	$ 115,000,000
Revolving credit facility	0	$ 15,000,000
Federal Home Loan Bank, Advances, General Debt Obligations, Maximum Amount Available	1,110,000,000
Long-term debt	245,783,000	$ 188,351,000
Federal Reserve Bank Amount Of Available Unused Funds	293,800,000
Federal Funds Borrowed	0
Long-term Federal Home Loan Bank Advances, Noncurrent	$ 127,000,000
Revolving Credit Facility [Member]
Short-term Debt [Line Items]
Line of Credit Facility, Expiration Period	364 days
Line of Credit Facility, Maximum Borrowing Capacity	$ 25,000,000
Debt Instrument, Interest Rate, Stated Percentage	3.25%
Revolving credit facility	$ 0
Mortgages | Federal Home Loan Bank [Member]
Short-term Debt [Line Items]
Fair Value of Securities Received as Collateral that Can be Resold or Repledged	1,540,000,000
Investment Securities [Member] | Federal Home Loan Bank [Member]
Short-term Debt [Line Items]
Fair Value of Securities Received as Collateral that Can be Resold or Repledged	3,600,000
Investment Securities [Member] | Federal Reserve Bank [Member]
Short-term Debt [Line Items]
Fair Value of Securities Received as Collateral that Can be Resold or Repledged	2,400,000
Commercial | Federal Reserve Bank [Member]
Short-term Debt [Line Items]
Fair Value of Securities Received as Collateral that Can be Resold or Repledged	$ 485,900,000
Federal Funds Effective Swap Rate [Member] | Revolving Credit Facility [Member]
Short-term Debt [Line Items]
Spread on variable rate	0.50%
Federal Home Loan Bank Advances [Member]
Short-term Debt [Line Items]
Debt Instrument, Unamortized Discount (Premium), Net	$ 3,900,000
Debt, Weighted Average Interest Rate	1.94%
Valley Financial Corporation | Junior Subordinated Debt [Member]
Short-term Debt [Line Items]
Long-term debt	$ 10,700,000
Long-term Debt, Percentage Bearing Variable Interest, Percentage Rate	5.00%
Debt Instrument, Interest Rate, Effective Percentage	5.50%
Minimum | Valley Financial Corporation | Junior Subordinated Debt [Member]
Short-term Debt [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	5.50%
Maximum | Valley Financial Corporation | Junior Subordinated Debt [Member]
Short-term Debt [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	9.50%
September Two Thousand Fourteen Subordinated Notes [Member] | Subordinated Debt [Member]
Short-term Debt [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	5.50%
Debt Instrument, Interest Rate, Duration of Fixed Rate Terms	5 years
Debt Instrument, Face Amount	$ 60,000,000
September Two Thousand Fourteen Subordinated Notes [Member] | Subordinated Debt [Member] | London Interbank Offered Rate (LIBOR) [Member]
Short-term Debt [Line Items]
Spread on variable rate	3.59%

Accumulated Other Comprehensi66

Accumulated Other Comprehensive Income - Schedule of Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance, Value			$ 592,147	$ 390,388
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	$ 1,546	$ (1,599)	(103)	(1,561)
Amounts Reclassified From Accumulated Other Comprehensive Income	(180)	(120)	(465)	(253)
Total other comprehensive (loss) income	1,366	(1,719)	(568)	(1,814)
Ending Balance, Value	717,061	403,583	717,061	403,583
Accumulated Net Unrealized Investment Gain (Loss)
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance, Value	4,619	7,912	5,227	7,089
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	1,772	(1,947)	1,139	(1,093)
Amounts Reclassified From Accumulated Other Comprehensive Income	(3)	3	22	(28)
Total other comprehensive (loss) income	1,769	(1,944)	1,161	(1,121)
Ending Balance, Value	6,388	5,968	6,388	5,968
Unrealized Holding Gains Investment Securities Transferred From Available For Sale To Held To Maturity
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance, Value	2,477	3,187	2,787	3,289
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	0	0	0	0
Amounts Reclassified From Accumulated Other Comprehensive Income	(177)	(123)	(487)	(225)
Total other comprehensive (loss) income	(177)	(123)	(487)	(225)
Ending Balance, Value	2,300	3,064	2,300	3,064
Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance, Value	(1,701)	(1,012)	(685)	(196)
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	(226)	348	(1,242)	(468)
Amounts Reclassified From Accumulated Other Comprehensive Income	0	0	0	0
Total other comprehensive (loss) income	(226)	348	(1,242)	(468)
Ending Balance, Value	(1,927)	(664)	(1,927)	(664)
Accumulated other comprehensive income
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance, Value	5,395	10,087	7,329	10,182
Ending Balance, Value	$ 6,761	$ 8,368	$ 6,761	$ 8,368

Accumulated Other Comprehensi67

Accumulated Other Comprehensive Income - Reclassification Out of Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Accumulated Other Comprehensive Income (Loss) [Line Items]
Income tax expense (benefit)	$ (6,760)	$ (4,712)	$ (13,244)	$ (8,223)
Amounts Reclassified From Accumulated Other Comprehensive Income	180	120	465	253
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	(22)	(3)	(25)	28
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	310	123	310	225
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	(35)	(4)	(39)	45
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	492	195	492	357
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)	13	1	14	(17)
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)	$ (182)	$ (72)	$ (182)	$ (132)

Fair Value Measurements - Sched

Fair Value Measurements - Schedule of Fair Value, Assets and Liabilities, Measured on Recurring Basis (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available-for-sale, at fair value	$ 539,781	$ 490,140
Derivative Asset, Fair Value, Gross Asset	8,563	3,749
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available-for-sale, at fair value	15,327	637
Interest rate swap - cash flow hedge	0	0
Interest rate swaps - not designated	0	0
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available-for-sale, at fair value	524,454	489,503
Interest rate swap - cash flow hedge	3,057	1,085
Interest rate swaps - not designated	2,753	1,332
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 - cash flow hedge	0	0
Interest rate swaps - not designated	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	539,781	490,140
Derivative Asset, Fair Value, Gross Asset	2,753	1,332
Assets, Fair Value Disclosure, Recurring	542,534	491,472
Total liabilities measured at fair value on a recurring basis	5,810	2,417
Fair Value, Measurements, Recurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available-for-sale, at fair value	15,327	637
Derivative Asset, Fair Value, Gross Asset	0	0
Assets, Fair Value Disclosure, Recurring	15,327	637
Total liabilities measured at fair value on a recurring basis	0	0
Fair Value, Measurements, Recurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available-for-sale, at fair value	524,454	489,503
Derivative Asset, Fair Value, Gross Asset	2,753	1,332
Assets, Fair Value Disclosure, Recurring	527,207	490,835
Total liabilities measured at fair value on a recurring basis	5,810	2,417
Fair Value, Measurements, Recurring | 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
Total liabilities measured at fair value on a recurring basis	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	11,815	12,327
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	11,815	12,327
US Government Agencies | Fair Value, Measurements, Recurring | 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 | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available-for-sale, at fair value	11,815	12,327
US Government Agencies | Fair Value, Measurements, Recurring | 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	180,890	180,618
State And Municipal Securities | Fair Value, Measurements, Recurring | 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 | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available-for-sale, at fair value	180,890	180,618
State And Municipal Securities | Fair Value, Measurements, Recurring | 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	49,990	47,703
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	49,990	47,703
Corporate Debt Securities | Fair Value, Measurements, Recurring | 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
Corporate Debt Securities | Fair Value, Measurements, Recurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available-for-sale, at fair value	49,990	47,703
Corporate Debt Securities | Fair Value, Measurements, Recurring | 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 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	164,301	138,747
Other Debt Securities | Fair Value, Measurements, Recurring | 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 Debt Securities | Fair Value, Measurements, Recurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available-for-sale, at fair value	164,301	138,747
Other Debt Securities | Fair Value, Measurements, Recurring | 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
Equity Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available-for-sale, at fair value	15,327	11,273
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	15,327	11,273
Equity Securities | Fair Value, Measurements, Recurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available-for-sale, at fair value	15,327	637
Equity Securities | Fair Value, Measurements, Recurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available-for-sale, at fair value	0	10,636
Equity Securities | Fair Value, Measurements, Recurring | 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
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	115,970	97,777
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	115,970	97,777
Residential Government Sponsored Mortgage Backed Securities | Fair Value, Measurements, Recurring | 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 | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available-for-sale, at fair value	115,970	97,777
Residential Government Sponsored Mortgage Backed Securities | Fair Value, Measurements, Recurring | 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	1,488	1,695
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	1,488	1,695
Other Mortgage-backed Securities, Issued by US Government Sponsored Enterprises | Fair Value, Measurements, Recurring | 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 | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available-for-sale, at fair value	1,488	1,695
Other Mortgage-backed Securities, Issued by US Government Sponsored Enterprises | Fair Value, Measurements, Recurring | 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 Not Designated as Hedging Instruments, Asset, at Fair Value	2,753	1,332
Interest rate swap - cash flow hedge	3,057	1,085
Interest rate swaps - not designated	2,753	1,332
Interest Rate Swap | Fair Value, Measurements, Recurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Instruments Not Designated as Hedging Instruments, Asset, at Fair Value	0	0
Interest rate swap - cash flow hedge	0	0
Interest rate swaps - not designated	0	0
Interest Rate Swap | Fair Value, Measurements, Recurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Instruments Not Designated as Hedging Instruments, Asset, at Fair Value	2,753	1,332
Interest rate swap - cash flow hedge	3,057	1,085
Interest rate swaps - not designated	2,753	1,332
Interest Rate Swap | Fair Value, Measurements, Recurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Instruments Not Designated as Hedging Instruments, Asset, at Fair Value	0	0
Interest rate swap - cash flow hedge	0	0
Interest rate swaps - not designated	$ 0	$ 0

Fair Value Measurements - Summa

Fair Value Measurements - Summary of Fair Value Measurements, Nonrecurring (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held for sale	$ 0	$ 0
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held for sale	41,703	39,470
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held for sale	0	0
Fair Value, Measurements, Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held for sale	41,703	39,470
Impaired loans	178,891	185,974
OREO	30,514	32,561
Total assets measured at fair value on a nonrecurring basis	251,108	258,005
Fair Value, Measurements, Nonrecurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held for sale	0	0
Impaired loans	0	0
OREO	0	0
Total assets measured at fair value on a nonrecurring basis	0	0
Fair Value, Measurements, Nonrecurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held for sale	41,703	39,470
Impaired loans	0	0
OREO	0	0
Total assets measured at fair value on a nonrecurring basis	41,703	39,470
Fair Value, Measurements, Nonrecurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held for sale	0	0
Impaired loans	178,891	185,974
OREO	30,514	32,561
Total assets measured at fair value on a nonrecurring basis	$ 209,405	$ 218,535

Fair Value Measurements - Sum70

Fair Value Measurements - Summary of Fair Value, Assets and Liabilities Measured on Nonrecurring Basis, Valuation Techniques (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2016	Dec. 31, 2015
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, Nonrecurring
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Impaired loans	$ 178,891	$ 185,974
OREO	$ 30,514	$ 32,561

Fair Value Measurements - Sum71

Fair Value Measurements - Summary of Fair Value, Balance Sheet Grouping (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investment securities available-for-sale, at fair value	$ 539,781	$ 490,140
Investment securities held-to-maturity	272,817	249,679
Accrued interest receivable	19,581	18,055
FDIC indemnification asset	0	1,909
Investment in bank-owned life insurance	172,502	116,806
Interest rate swaps - not designated	8,563	3,749
Time deposits	1,814,654	1,598,838
Short-term borrowings	106,336	103,212
Long-term debt	245,783	188,351
Estimate of Fair Value Measurement
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	192,390	204,238
Investment securities available-for-sale, at fair value	539,781	490,140
Investment securities held-to-maturity	272,817	249,679
Federal Home Loan Bank stock	11,582	8,171
Loans held for sale	41,703	39,470
Loans receivable, net	4,812,508	4,228,455
Accrued interest receivable	19,581	18,055
FDIC indemnification asset	1,322	1,909
Investment in bank-owned life insurance	172,502	116,806
Demand deposits and savings	3,541,989	3,143,369
Time deposits	1,819,646	1,611,707
Short-term borrowings	106,336	103,212
Long-term debt	239,575	184,289
Accrued interest payable	2,298	2,002
Interest rate swap - cash flow hedge	3,057	1,085
Interest rate swaps - not designated	2,753	1,332
Reported Value Measurement
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	192,390	204,238
Investment securities available-for-sale, at fair value	539,781	490,140
Investment securities held-to-maturity	263,277	244,417
Federal Home Loan Bank stock	11,582	8,171
Loans held for sale	41,703	39,470
Loans receivable, net	4,778,844	4,168,224
Accrued interest receivable	19,581	18,055
FDIC indemnification asset	0	1,909
Investment in bank-owned life insurance	172,502	116,806
Demand deposits and savings	3,541,989	3,143,369
Time deposits	1,814,654	1,598,838
Short-term borrowings	106,336	103,212
Long-term debt	245,783	189,578
Accrued interest payable	2,298	2,002
Interest rate swap - cash flow hedge	3,057	1,085
Interest rate swaps - not designated	2,753	1,332
Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	192,390	204,238
Investment securities available-for-sale, at fair value	15,327	637
Investment securities held-to-maturity	0	0
Federal Home Loan Bank stock	0	0
Loans held for sale	0	0
Loans receivable, net	0	0
Accrued interest receivable	0	0
FDIC indemnification asset	0	0
Investment in bank-owned life insurance	0	0
Demand deposits and savings	0	0
Time deposits	0	0
Short-term borrowings	0	0
Long-term debt	0	0
Accrued interest payable	0	0
Interest rate swap - cash flow hedge	0	0
Interest rate swaps - not designated	0	0
Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	0	0
Investment securities available-for-sale, at fair value	524,454	489,503
Investment securities held-to-maturity	272,817	249,679
Federal Home Loan Bank stock	11,582	8,171
Loans held for sale	41,703	39,470
Loans receivable, net	4,633,617	4,042,481
Accrued interest receivable	19,581	18,055
FDIC indemnification asset	0	0
Investment in bank-owned life insurance	172,502	116,806
Demand deposits and savings	3,541,989	3,143,369
Time deposits	1,819,646	1,611,707
Short-term borrowings	106,336	103,212
Long-term debt	239,575	184,289
Accrued interest payable	2,298	2,002
Interest rate swap - cash flow hedge	3,057	1,085
Interest rate swaps - not designated	2,753	1,332
Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	0	0
Investment securities available-for-sale, at fair value	0	0
Investment securities held-to-maturity	0	0
Federal Home Loan Bank stock	0	0
Loans held for sale	0	0
Loans receivable, net	178,891	185,974
Accrued interest receivable	0	0
FDIC indemnification asset	1,322	1,909
Investment in bank-owned life insurance	0	0
Demand deposits and savings	0	0
Time deposits	0	0
Short-term borrowings	0	0
Long-term debt	0	0
Accrued interest payable	0	0
Interest rate swap - cash flow hedge	0	0
Interest rate swaps - not designated	0	0
Interest Rate Swap | Not Designated as Hedging Instrument | Estimate of Fair Value Measurement
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest rate swaps - not designated	2,753	1,332
Interest Rate Swap | Not Designated as Hedging Instrument | Reported Value Measurement
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest rate swaps - not designated	2,753	1,332
Interest Rate Swap | Level 1 | Not Designated as Hedging Instrument
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest rate swaps - not designated	0	0
Interest Rate Swap | Level 2 | Not Designated as Hedging Instrument
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest rate swaps - not designated	2,753	1,332
Interest Rate Swap | Level 3 | Not Designated as Hedging Instrument
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest rate swaps - not designated	$ 0	$ 0

Commitments and Contingencies -

Commitments and Contingencies - Schedule of Fair Value Off Balance Sheet Risks (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Commitments and Contingencies Disclosure [Abstract]
Commitments under unfunded loans and lines of credit	$ 1,215,927	$ 1,010,497
Letters of credit	$ 14,595	$ 14,213

Commitments and Contingencies73

Commitments and Contingencies - Narrative (Details) $ in Millions	Jun. 30, 2016USD ($)
Commitments and Contingencies Disclosure [Abstract]
Commitment to Purchase Limited Partnership Interest	$ 10.8
Unfunded Commitment to Purchase Limited Partnership Interest	6.6
Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Amount	$ 4.2

Employee Benefits - Disclosure

Employee Benefits - Disclosure of Share-Based Compensation Arrangements by Share-Based Payment Award (Details) $ / shares in Units, $ in Thousands	6 Months Ended
	Jun. 30, 2016USD ($)$ / sharesshares
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Options, Grants in Period, Gross | shares	0
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Granted (USD per share) | $ / shares	$ 0
Employee Stock Option
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Outstanding, beginning of period (in shares) | shares	152,571
Exercised (in shares) | shares	41,171
Forfeited or expired (in shares) | shares	0
Outstanding, end of period (in shares) | shares	111,400
Exercisable at December 31, 2013 (in shares) | shares	111,400
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Outstanding, beginning of period (in shares) | $ / shares	$ 9.69
Exercised (in shares) | $ / shares	10
Forfeited or expired (in shares) | $ / shares	0
Outstanding, end of period (in shares) | $ / shares	9.58
Exercisable at December 31, 2013 (in shares) | $ / shares	$ 9.58
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]
Weighted average remaining contractual term (dollars per shares)	2 years 4 months 6 days
Exercisable at December 31, 2013 (dollars per share)	2 years 4 months 6 days
Aggregate intrinsic value | $	$ 1,463
Exercisable at December 31, 2013 | $	$ 1,463

Employee Benefits - Schedule of

Employee Benefits - Schedule of Nonvested Restricted Stock Units Activity (Details) - Restricted Stock	6 Months Ended
	Jun. 30, 2016$ / sharesshares
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) | shares	516,088
Granted (in shares) | shares	61,265
Vested (in shares) | shares	(102,321)
Forfeited (in shares) | shares	(2,500)
Restricted stock nonvested, end of period (in shares) | shares	472,532
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) | $ / shares	$ 15.78
Granted (dollars per share) | $ / shares	20.95
Vested (dollars per share) | $ / shares	13.49
Forfeited (dollars per share) | $ / shares	19.33
Restricted stock nonvested, end of period (dollars per share) | $ / shares	$ 16.93

Employee Benefits - Narrative (

Employee Benefits - Narrative (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options, Grants in Period, Gross	0
2006 Omnibus Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Rights issued	118,000
2013 Omnibus Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Outstanding, Options (in shares)	410,393
Shares available	813,705
KeySource Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Outstanding, Options (in shares)	56,537
Employee Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Outstanding, Options (in shares)	111,400		152,571
Employee Stock Option | KeySource Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available	35,607
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocated Share-based Compensation Expense	$ 1.5	$ 1.3
Compensation Cost Not yet Recognized	$ 5.7
Compensation Cost Not yet Recognized, Period for Recognition	2 years 11 days
Fair value of restricted stock, vested in period	$ 1.4	$ 1.3

Subsequent Event (Details)

Subsequent Event (Details) - USD ($) $ in Thousands, shares in Millions	Jul. 26, 2016	Jun. 30, 2016	Dec. 31, 2015
Subsequent Event [Line Items]
Common stock issued		$ 549,212	$ 448,728
Subsequent Event [Member]
Subsequent Event [Line Items]
Common stock issued, shares	2.9
Common stock issued	$ 59,600

Uncategorized Items - bncn-2016

Label	Element	Value
Southcoast Financial Corporation [Member] | Common Stock [Member]
Stock Issued During Period, Shares, Acquisitions	us-gaap_StockIssuedDuringPeriodSharesAcquisitions	4,310,445