FCB Financial 10-K 24 Feb 17 2016 FY Annual report Financial data

Document and Entity Information

Document and Entity Information - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Feb. 01, 2017	Jun. 30, 2016
Document Information [Line Items]
Document Type	10-K
Amendment Flag	false
Document Period End Date	Dec. 31, 2016
Document Fiscal Year Focus	2,016
Document Fiscal Period Focus	FY
Trading Symbol	FCB
Entity Registrant Name	FCB FINANCIAL HOLDINGS, INC.
Entity Central Index Key	1,476,651
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	Yes
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Filer Category	Large Accelerated Filer
Entity Public Float			$ 1,310
Class A common stock
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		41,278,222
Class B common stock
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		114,822

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Assets:
Cash and due from banks	$ 52,903	$ 44,696
Interest-earning deposits in other banks	30,973	57,764
Investment securities:
Available for sale securities, at fair value	1,876,434	1,524,622
Federal Home Loan Bank and other bank stock, at cost	51,656	59,477
Total investment securities	1,928,090	1,584,099
Loans held for sale	20,220	2,514
Loans:
Loans	6,634,894	5,193,187
Allowance for loan losses	(37,897)	(29,126)
Loans, net	6,596,997	5,164,061
Premises and equipment, net	36,652	36,954
Other real estate owned	19,228	39,340
Goodwill	81,204	81,204
Core deposit intangible	4,691	5,880
Deferred tax assets, net	61,391	75,176
Bank-owned life insurance	198,438	168,246
Other assets	59,347	71,552
Total assets	9,090,134	7,331,486
Transaction accounts:
Noninterest-bearing	905,905	637,047
Interest-bearing	4,183,972	2,935,418
Total transaction accounts	5,089,877	3,572,465
Time deposits	2,215,794	1,858,173
Total deposits	7,305,671	5,430,638
Borrowings (including FHLB advances of $592,250 and $806,500, respectively)	751,103	983,183
Other liabilities	50,919	41,556
Total liabilities	8,107,693	6,455,377
Commitments and contingencies (Note 17)
Stockholders’ Equity:
Additional paid-in capital	875,314	850,609
Retained earnings	188,451	88,535
Accumulated other comprehensive income (loss)	(3,995)	(9,443)
Treasury stock, at cost; 2,694,489, 1,977,374 Class A and 192,132, 192,132 Class B common shares	(77,373)	(53,635)
Total stockholders’ equity	982,441	876,109
Total liabilities and stockholders’ equity	9,090,134	7,331,486
Class A common stock
Stockholders’ Equity:
Common stock	44	39
Class B common stock
Stockholders’ Equity:
Common stock	0	4
Acquired loans portfolio segment
Loans:
Loans	375,488	582,424
Allowance for loan losses	(1,410)	(2,270)
New loans portfolio segment
Loans:
Loans	6,259,406	4,610,763
Allowance for loan losses	$ (33,543)	$ (23,745)

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
FHLB advances	$ 592,250	$ 806,500
Treasury stock, shares (in shares)	2,886,621	2,169,506
Class A common stock
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized (in shares)	100,000,000	100,000,000
Common stock, shares issued (in shares)	43,663,586	39,103,945
Common stock, shares outstanding (in shares)	40,969,097	37,126,571
Treasury stock, shares (in shares)	2,694,489	1,977,374
Class B common stock
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized (in shares)	50,000,000	50,000,000
Common stock, shares issued (in shares)	380,606	3,926,014
Common stock, shares outstanding (in shares)	188,474	3,733,882
Treasury stock, shares (in shares)	192,132	192,132

Consolidated Statements of Inco

Consolidated Statements of Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Interest income:
Interest and fees on loans	$ 258,261	$ 196,123	$ 158,670
Interest and dividends on investment securities	60,706	52,741	44,545
Other interest income	349	176	211
Total interest income	319,316	249,040	203,426
Interest expense:
Interest on deposits	44,329	26,141	22,758
Interest on borrowings	7,271	5,103	5,496
Total interest expense	51,600	31,244	28,254
Net interest income	267,716	217,796	175,172
Provision for loan losses	7,655	6,823	10,243
Net interest income after provision for loan losses	260,061	210,973	164,929
Noninterest income:
Service charges and fees	3,467	3,184	2,963
Loan and other fees	8,895	8,611	6,793
Bank-owned life insurance income	5,192	4,610	4,175
FDIC loss share indemnification loss	0	(65,529)	(21,425)
Income from resolution of acquired assets	3,345	9,605	4,899
Gain on sales of other real estate owned	3,126	8,107	144
Gain on investment securities	1,819	1,906	12,105
Other noninterest income	3,873	4,184	7,378
Total noninterest income (loss)	29,717	(25,322)	17,032
Noninterest expense:
Salaries and employee benefits	76,231	69,021	73,241
Occupancy and equipment expenses	13,591	14,397	14,064
Loan and other real estate related expenses	7,356	7,740	14,868
Professional services	5,207	5,412	5,629
Data processing and network	11,461	10,671	10,744
Regulatory assessments and insurance	7,872	8,196	7,839
Amortization of intangibles	1,189	1,631	1,710
Marketing and promotions	3,851	3,612	1,865
Other operating expenses	7,199	5,924	15,672
Total noninterest expense	133,957	126,604	145,632
Income before income tax expense	155,821	59,047	36,329
Income tax expense	55,905	5,656	13,957
Net income	$ 99,916	$ 53,391	$ 22,372
Earnings per share:
Basic earnings per share (in dollars per shares)	$ 2.45	$ 1.29	$ 0.59
Diluted earnings per share (in dollars per shares)	$ 2.31	$ 1.23	$ 0.58
Weighted average shares outstanding:
Weighted average number of common shares—basic (in shares)	40,716,588	41,300,979	38,054,158
Weighted average number of common shares—diluted (in shares)	43,225,164	43,293,607	38,258,316

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Statement of Comprehensive Income [Abstract]
Net income	$ 27,896	$ 26,064	$ 23,504	$ 22,452	$ 29,749	$ 21,140	$ 19,376	$ (16,874)	$ 99,916	$ 53,391	$ 22,372
Other comprehensive income (loss):
Unrealized net holding gains (losses) on investment securities available for sale, net of taxes of $(4,467), $5,399, and $(4,430), respectively									7,115	(8,598)	7,051
Reclassification adjustment for realized (gains) losses on investment securities available for sale included in net income, net of taxes of $1,048, $956, and $3,013, respectively									(1,667)	(1,524)	(4,797)
Total other comprehensive income (loss)									5,448	(10,122)	2,254
Total comprehensive income									$ 105,364	$ 43,269	$ 24,626

Consolidated Statements of Com6

Consolidated Statements of Comprehensive Income (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Statement of Comprehensive Income [Abstract]
Unrealized net holding gains (losses) on investment securities available for sale, taxes	$ (4,467)	$ 5,399	$ (4,430)
Reclassification adjustment for realized (gains) losses on investment securities available for sale included in net income, taxes	$ 1,048	$ 956	$ 3,013

Consolidated Statements of Chan

Consolidated Statements of Changes in Stockholders' Equity - USD ($) $ in Thousands	Total	Additional Paid in Capital	Retained Earnings	Treasury Stock	Accumulated Other Comprehensive Income (loss)	Class A common stock	Class A common stockCommon Stock	Class B common stock	Class B common stockCommon Stock
Beginning balance at Dec. 31, 2013	$ 716,114	$ 723,631	$ 12,772	$ (18,751)	$ (1,575)		$ 29		$ 8
Beginning balance (in shares) at Dec. 31, 2013							28,065,002		7,827,152
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	22,372		22,372
Shares issued in offering, net	104,475	104,469					$ 6
Shares issued in offering, net (in shares)							5,274,045
Settlement of RSU shares	(5,688)	(5,688)
Settlement of RSU shares/ Restricted stock awards (in shares)							243,499
Deferred placement fee	(10,000)	(10,000)
Exchange of B shares to A shares							$ 1		$ (1)
Exchange of B shares to A shares (in shares)							887,104		(887,104)
Stock-based compensation, RSU, RSA and warrant expense	21,747	21,747
Other	379	379
Other comprehensive income (loss)	2,254				2,254
Ending balance at Dec. 31, 2014	851,653	834,538	35,144	(18,751)	679		$ 36		$ 7
Ending balance (in shares) at Dec. 31, 2014							34,469,650		6,940,048
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	$ 53,391		53,391
Exchange of B shares to A shares							$ 3		$ (3)
Exchange of B shares to A shares (in shares)	3,206,166						3,206,166	(3,206,166)	(3,206,166)
Stock-based compensation, RSU, RSA and warrant expense	$ 5,290	5,290
Excess tax benefit of stock-based compensation	2,048	2,048
Treasury stock purchases	(34,884)			(34,884)		$ (34,900)
Treasury stock purchases (in shares)						(1,050,062)	(1,050,062)
Exercise of stock options	8,793	8,793
Exercise of stock options (in shares)							500,817
Other	(60)	(60)
Other comprehensive income (loss)	(10,122)				(10,122)
Ending balance at Dec. 31, 2015	876,109	850,609	88,535	(53,635)	(9,443)		$ 39		$ 4
Ending balance (in shares) at Dec. 31, 2015						37,126,571	37,126,571	3,733,882	3,733,882
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	$ 99,916		99,916
Settlement of RSU shares/ Restricted stock awards (in shares)							121,212
Exchange of B shares to A shares							$ 4		$ (4)
Exchange of B shares to A shares (in shares)	3,545,408						3,545,408	(3,545,408)	(3,545,408)
Stock-based compensation, RSU, RSA and warrant expense	$ 5,613	5,613
Excess tax benefit of stock-based compensation	2,110	2,110
Treasury stock purchases	(23,738)			(23,738)		$ (23,700)
Treasury stock purchases (in shares)						(717,115)	(717,115)
Exercise of stock options	17,042	17,041					$ 1
Exercise of stock options (in shares)							893,021
Other	(59)	(59)
Other comprehensive income (loss)	5,448				5,448
Ending balance at Dec. 31, 2016	$ 982,441	$ 875,314	$ 188,451	$ (77,373)	$ (3,995)		$ 44		$ 0
Ending balance (in shares) at Dec. 31, 2016						40,969,097	40,969,097	188,474	188,474

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Cash Flows From Operating Activities:
Net income	$ 99,916	$ 53,391	$ 22,372
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Provision for loan losses	7,655	6,823	10,243
Amortization of intangible assets	1,189	1,631	1,710
Depreciation and amortization of premises and equipment	3,583	3,792	3,894
Amortization of discount on loans	(930)	(2,657)	(4,701)
Net amortization (accretion) of premium (discount) on investment securities	1,586	1,883	2,384
Net amortization (accretion) of premium (discount) on time deposits	(50)	(336)	(1,691)
Net amortization (accretion) of premium (discount) on FHLB advances and other borrowings	(2,635)	(2,609)	(1,569)
Impairment of other real estate owned	1,751	728	2,690
Impairment of fixed assets HFS	48	0	0
FDIC Loss share indemnification loss	0	65,529	21,425
(Gain) loss on investment securities	(1,819)	(1,906)	(12,105)
(Gain) loss on sale of loans	(1,635)	(1,717)	(538)
(Gain) loss on sale of other real estate owned	(3,126)	(8,107)	(144)
(Gain) loss on sale of premises and equipment	48	174	(8)
Deferred tax expense	10,364	(21,395)	(7,293)
Stock-based compensation	5,613	5,290	21,747
Increase in cash surrender value of BOLI	(5,192)	(4,610)	(4,175)
(Gain) on life insurance proceeds	0	0	(1,594)
Net change in operating assets and liabilities:
Net change in loans held for sale	(16,071)	(379)	(707)
Collection from FDIC on loss share indemnification asset	0	0	6,652
Settlement of FDIC loss share agreement	0	(14,815)	0
Net change in other assets	8,499	49	(21,314)
Net change in other liabilities	(10,717)	(12,539)	9,323
Net cash provided by (used in) operating activities	98,077	68,220	46,601
Cash Flows From Investing Activities:
Purchase of investment securities available for sale	(750,482)	(676,708)	(1,361,290)
Sales of investment securities available for sale	342,137	354,733	1,291,261
Paydown and maturities of investment securities held to maturity	0	0	372
Paydown and maturities of investment securities available for sale	89,421	139,996	147,726
Purchase of FHLB and other bank stock	(113,362)	(81,207)	(103,179)
Sales of FHLB and other bank stock	121,183	88,621	72,475
Net cash paid in acquisition	0	0	(14,073)
Net change in loans	(1,357,875)	(939,514)	(921,906)
Purchase of loans	(200,480)	(395,649)	(243,544)
Proceeds from sale of loans	106,450	52,362	23,517
Purchase of bank-owned life insurance	(25,000)	(25,000)	(60,000)
Proceeds from sale of other real estate owned	34,274	64,139	35,093
Purchase of premises and equipment	(4,925)	(1,958)	(3,135)
Proceeds from the sale of premises and equipment	1,548	0	3,855
Capitalized expenditures on foreclosed real estate	(543)	0	0
Proceeds from life insurance	0	1,193	1,197
Net cash provided by (used in) investing activities	(1,757,654)	(1,418,992)	(1,131,631)
Cash Flows From Financing Activities:
Net change in deposits	1,875,083	1,452,439	322,717
Net change in FHLB advances and other borrowings	(214,250)	(177,186)	544,046
Net change in repurchase agreements	(15,195)	94,997	(3,031)
Repurchase of stock	(23,738)	(34,884)	0
Proceeds from capital raise	0	0	104,475
Deferred placement fee	0	0	(10,000)
Settlement of RSU shares	0	0	(5,688)
Exercise of stock options	17,042	8,793	0
Excess tax benefit from share based payments	2,110	2,048	0
Other financing costs	(59)	(60)	379
Net cash provided by (used in) financing activities	1,640,993	1,346,147	952,898
Net Change in Cash and Cash Equivalents	(18,584)	(4,625)	(132,132)
Cash and Cash Equivalents at Beginning of Period	102,460	107,085	239,217
Cash and Cash Equivalents at End of Period	83,876	102,460	107,085
Supplemental Disclosures of Cash Flow Information:
Interest paid	50,631	30,788	27,742
Income taxes paid	60,192	36,304	9,932
Supplemental disclosure of noncash investing and financing activities:
Transfer of loans to other real estate owned	12,244	21,573	22,399
Fair value of assets acquired	0	0	957,324
Goodwill recorded	0	0	47,335
Liabilities assumed	$ 0	$ 0	$ 962,194

Summary of Significant Accounti

Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2016
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Nature of Operations FCB Financial Holdings, Inc. (the “Company”), formerly known as Bond Street Holdings, Inc., is a national bank holding company with one wholly-owned national bank subsidiary, Florida Community Bank, N.A. (“Florida Community Bank” or the “Bank”), headquartered in Weston, Florida, offering a comprehensive range of traditional banking products and services to individual and corporate customers through 46 banking centers located in Florida at December 31, 2016 . Principles of Consolidation The consolidated financial statements include the accounts of the Company, its wholly-owned subsidiary, the Bank, and the Bank’s subsidiaries, which consist of a group of real estate holding companies. Intercompany transactions and balances have been eliminated in consolidation. Use of Estimates The Company’s financial reporting and accounting policies conform to U.S. GAAP. The preparation of financial statements in conformity with U.S. 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 consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Material estimates subject to significant change include the allowance for loan losses, valuation of and accounting for acquired loans, the carrying value of OREO, the fair value of financial instruments, the valuation of goodwill and other intangible assets, acquisition-related fair value computations, stock-based compensation and deferred taxes. Business combinations The Company accounts for transactions that meet the definition of a purchase business combination by recording the assets acquired and liabilities assumed at their fair value upon acquisition. The operations of the acquisitions are included in the consolidated financial statements from the date of acquisition. Intangible assets, indemnification contracts and contingent consideration are identified and recognized individually. If the fair value of the assets acquired exceeds the purchase price plus the fair value of the liabilities assumed, a bargain purchase gain is recognized. Conversely, if the purchase price plus the fair value of the liabilities assumed exceeds the fair value of the assets acquired, goodwill is recognized. The Company’s assumptions utilized to determine the fair value of assets acquired and liabilities assumed conform to market conditions at the date of acquisition. The provisional amounts recorded are updated if better information is obtained about the initial assumptions used to determine fair value or if new information is obtained regarding the facts and circumstances that existed at the date of acquisition. The provisional amounts may be adjusted through the completion of the measurement period, which does not exceed one year from the date of acquisition. Fair Value Measurement The Company uses estimates of fair value in applying various accounting standards for its consolidated financial statements on either a recurring or non-recurring basis. Fair value is defined as the price to sell an asset or transfer a liability in an orderly transaction between willing and able market participants. The Company groups its assets and liabilities measured at fair value in three hierarchy levels, based on the observability and transparency of the inputs. These levels are as follows: Level 1—Unadjusted quoted prices in active markets that are accessible at the measurement date for identical assets or liabilities; Level 2—Observable inputs other than level 1 inputs, including quoted prices for similar assets and liabilities, quoted prices for identical assets and liabilities in less active markets and other inputs that can be corroborated by observable market data; Level 3—Unobservable inputs supported by limited or no market activity or data and inputs requiring significant management judgment or estimation; valuation techniques utilizing level 3 inputs include option pricing models, discounted cash flow models and similar techniques. It is the Company’s policy to maximize the use of observable inputs and minimize the use of unobservable inputs in estimating fair value. Unobservable inputs are utilized in determining fair value estimates only to the extent that observable inputs are not available. The need to use unobservable inputs generally results from a lack of market liquidity and trading volume. Transfers between levels of fair value hierarchy are recorded at the end of the reporting period. Accounting Standards Codification (“ASC”) Topic 825, Financial Instruments, allows the Company an irrevocable option for measurement of eligible financial assets or financial liabilities at fair value on an instrument by instrument basis (the fair value option). An election may be made at the time an eligible financial asset, financial liability or firm commitment is recognized or when certain specified reconsideration events occur. The Company has not elected the fair value option for any eligible financial instrument as of December 31, 2016 or 2015 . Transfers of Financial Assets Transfers of financial assets are accounted for as sales, when control over the assets has been surrendered. A gain or loss is recognized in earnings upon completion of the sale based on the difference between the sales proceeds and the carrying value of the assets. Control over the transferred assets is deemed to have been surrendered when the assets have been isolated from the Company, the transferee obtains the right (free of conditions that constrain it from taking advantage of that right) to pledge or exchange the transferred assets and the Company does not maintain effective control over the transferred assets through an agreement to repurchase them before their maturity. Cash and Cash Equivalents Cash and cash equivalents include cash and due from banks, interest-bearing deposits with banks, Federal funds sold and securities purchased under resale agreements or similar arrangements. Cash and cash equivalents have original maturities of three months or less . Accordingly, the carrying amount of such instruments is considered a reasonable estimate of fair value. Restrictions on Cash The Bank is required to maintain reserve balances with the FRB. Such reserve requirements are based on a percentage of deposit liabilities and may be satisfied by cash on hand or on deposit. Because the amount of cash on hand exceeded the requirement, there was no reserve with the FRB as of December 31, 2016 . Investment Securities The Company determines the classification of investment securities at the time of purchase. If the Company has the intent and the ability at the time of purchase to hold debt securities until maturity, they are classified as held-to-maturity. Investment securities held-to-maturity are stated at amortized cost. Debt securities the Company does not intend to hold to maturity are classified as available for sale and carried at estimated fair value with unrealized gains or losses reported as a separate component of stockholders’ equity in accumulated other comprehensive income, net of applicable income taxes. Available for sale securities are a part of the Company’s asset/liability management strategy and may be sold in response to changes in interest rates, prepayment risk or other market factors. Interest income and dividends on securities are recognized in interest income on an accrual basis. Premiums and discounts on debt securities are amortized as an adjustment to interest income over the period to maturity of the related security using the effective interest method. Realized gains or losses on the sale of securities are determined using the specific identification method. The Company reviews investment securities for impairment on a quarterly basis or more frequently if events and circumstances warrant. In order to determine if a decline in fair value below amortized cost represents OTTI, management considers several factors, including but not limited to, the length of time and extent to which the fair value has been less than the amortized cost basis, the financial condition and near-term prospects of the issuer (considering factors such as adverse conditions specific to the issuer and the security and ratings agency actions) and the Company’s intent and ability to retain the investment in order to allow for an anticipated recovery in fair value. The Company recognizes OTTI of a debt security for which there has been a decline in fair value below amortized cost if (i) management intends to sell the security, (ii) it is more likely than not that the Company will be required to sell the security before recovery of its amortized cost basis, or (iii) the Company does not expect to recover the entire amortized cost basis of the security. The amount by which amortized cost exceeds the fair value of a debt security that is considered to have OTTI is separated into a component representing the credit loss, which is recognized in earnings, and a component related to all other factors, which is recognized in other comprehensive income. The measurement of the credit loss component is equal to the difference between the debt security’s amortized cost basis and the present value of its expected future cash flows discounted at the security’s effective yield. If the Company intends to sell the security, or if it is more likely than not it will be required to sell the security before recovery, an OTTI write-down is recognized in earnings equal to the entire difference between the amortized cost basis and fair value of the security. The Bank, as a member of the FHLB is required to maintain an investment in the stock of the FHLB. No market exists for this stock, and the Bank’s investment can be liquidated only through redemption by the FHLB, at the discretion of and subject to conditions imposed by the FHLB. Historically, FHLB stock redemptions have been at cost (par value), which equals the Company’s carrying value. The Company monitors its investment in FHLB stock for impairment through review of recent financial results of the FHLB including capital adequacy and liquidity position, dividend payment history, redemption history and information from credit agencies. The Company has not identified any indicators of impairment of FHLB stock. Loans The Company’s accounting methods for loans differ depending on whether the loans are new (“New” loans) or acquired (“Acquired” loans), and for acquired loans, whether the loans were acquired at a discount as a result of credit deterioration since the date of origination. New Loans The Company accounts for originated loans and purchased loans not acquired through business acquisitions as New loans. New loans that management has the intent and ability to hold for the foreseeable future are reported at their outstanding principal balances net of any allowance for loan losses, unamortized deferred fees and costs and unamortized premiums or discounts. The net amount of nonrefundable loan origination fees and certain direct costs associated with the lending process are deferred and amortized into interest income over the contractual lives of the New loans using methods which approximate the level yield method. Discounts and premiums are amortized or accreted into interest income over the estimated term of the New loans using methods that approximate the level yield method. Interest income on New loans is accrued based on the unpaid principal balance outstanding and the contractual terms of the loan agreements. Acquired Loans Acquired loans are accounted for under ASC 310-30 unless the loan type is excluded from the scope of ASC 310-30 (i.e. loans where borrowers have revolving privileges at acquisition date, or “Non-ASC 310-30” loans). The Company has elected to account for loans acquired with deteriorated credit quality since origination under ASC 310-30 (“ASC 310-30” loans or pools) due to the following: • There is evidence of credit quality deterioration since origination resulting in a “Day 1” discount attributable, at least in part, to credit quality; • The loans were acquired in a business combination or asset purchase; and • The loans are not to be subsequently accounted for at fair value. The Company has elected this policy for loans acquired through business combinations exhibiting credit deterioration since origination, except those loan types which have been scoped out of ASC 310-30. Substantially all loans acquired through the FDIC-assisted acquisitions had a fair value discount at acquisition date due at least in part to deterioration in credit quality since origination. However, there was a separate grouping of loans individually identified with substantial credit impairment that would be explicitly scoped into ASC 310-30 from those that were classified by analogy. The Company determined that a loan would be explicitly scoped into ASC 310-30 if there was evidence of credit deterioration at Day 1 and that it was probable that the Company would be unable to collect all contractual cash flows receivable. The loans that were classified by analogy were determined to have evidence of credit deterioration at Day 1 and that it was possible, not probable, that the Company would be unable to collect all contractual cash flows receivable. For each acquisition, ASC 310-30 loans are aggregated into pools based on common risk characteristics, which includes similar credit risk of the loans based on whether loans were analogized or were explicitly scoped into ASC 310-30, internal risk ratings for commercial real estate, land and development and commercial loans; and performing status for consumer and single family residential loans. Pools of loans are further aggregated by collateral type (e.g. commercial real estate, single family residential, etc.). The Company did not elect to aggregate loans into pools that were acquired from separate acquisitions completed in the same fiscal quarter. Acquired loans are recorded at their fair value at the acquisition date. Fair value for acquired loans is based on a discounted cash flow methodology that considers factors including the type of loan and related collateral type, delinquency and credit classification status, fixed or variable interest rate, term of loan, whether or not the loan was amortizing, and current discount rates. Additional assumptions used include default rates, loss severity, loss curves and prepayment speeds. Discounts due to credit quality are included in the determination of fair value; therefore an allowance for loan losses is not recorded at the acquisition date. The discount rates used for the cash flow methodology are based on market rates for new originations of comparable loans at the time of acquisition and include adjustments for liquidity concerns. The fair value is determined from the discounted cash flows for each individual loan, and for ASC 310-30 loans are then aggregated at the unit of account, or pool level. For acquired loans with deteriorated credit quality, the Company makes an estimate of the total cash flows it expects to collect from the loans in each pool, which includes undiscounted expected principal and interest as well as cash received through other forms of satisfaction (e.g. foreclosure). The excess of contractual amounts over the total cash flows expected to be collected from the loans is referred to as non-accretable difference, which is not accreted into income. The excess of the expected undiscounted cash flows over the carrying value of the loans is referred to as accretable discount. Accretable discount is recognized as interest income on a level-yield basis over the expected term of the loans in each pool. The Company continues to estimate cash flows expected to be collected over the expected term of the ASC 310-30 loans on a quarterly basis. Subsequent increases in total cash flows expected to be collected are recognized as an adjustment to the accretable discount with the amount of periodic accretion adjusted over the remaining expected term of the loans. Subsequent decreases in cash flows expected to be collected over the expected term of the loans are recognized as impairment in the current period through a provision for loan losses. Each pool is accounted for as a single asset with a single composite interest rate and an aggregate expectation of cash flows. Resolutions of loans may include sales to third parties, receipt of payments in settlement with the borrower, or foreclosure of the collateral. Upon these resolutions, the Company’s policy is to remove an individual ASC 310-30 loan from a pool based on comparing the amount received from its resolution with its contractual amount. Any difference between these amounts is absorbed by the nonaccretable difference. This removal method assumes that the amount received from these resolutions approximates the pool performance expectations of cash flows. The accretable yield percentage is unaffected by the resolution. Any changes in the effective yield for the remaining loans in the pool are addressed by the quarterly cash flow evaluation process for each pool. For loans that are resolved by payment in full, there is no release of the nonaccretable difference for the pool because there is no difference between the amount received at resolution and the contractual amount of the loan. Payments received in excess of expected cash flows may result in an ASC 310-30 pool becoming fully amortized and its carrying value reduced to zero even though outstanding contractual balances remain related to loans in the pool. Once the carrying value of an ASC 310-30 pool is reduced to zero, any future proceeds from the borrower or from the sale of loans are recognized as interest income upon receipt. There were six ASC 310-30 pools whose carrying value had been reduced to zero as of December 31, 2016 . These pools had an aggregate Unpaid Principal Balance (“UPB” or “UPBs”) of $456 thousand as of December 31, 2016 . For the year ended December 31, 2016 , the Company sold approximately $75.3 million of loans accounted for under ASC 310-30. These sales resulted in proceeds that exceeded the carrying value of the accounting pool in which the loans resided of $27.2 million which was recognized as interest income. Non-ASC 310-30 loans are recorded at their estimated fair value as of the acquisition date and subsequently accounted for under ASC Topic 310-20, Receivables—Nonrefundable Fees and Other Costs (“ASC 310-20”). The fair value discount is accreted using methods which approximate the level-yield method over the remaining term of the loans and is recognized as a component of interest income. Loans Held for Sale Certain residential fixed rate and adjustable rate mortgage loans originated by the Company with the intent to sell in the secondary market are carried at the lower of cost or fair value, as determined by outstanding commitments from investors or prevailing market prices. These loans are generally sold on a non-recourse basis with servicing released. Gains and losses on the sale of loans recognized in earnings are measured based on the difference between proceeds received and the carrying amount of the loans, inclusive of deferred origination fees and costs, if any. Nonaccrual Loans For New and Non-ASC 310-30 loans, the Company classifies loans as past due when the payment of principal or interest is greater than 30 days delinquent based on the contractual next payment due date. The Company’s policies related to when loans are placed on nonaccrual status conform to guidelines prescribed by regulatory authorities. Loans are placed on nonaccrual status when it is probable that principal or interest is not fully collectible, or generally when principal or interest becomes 90 days past due, whichever occurs first. Loans secured by 1-4 single family residential properties may remain in accruing status until they are 180 days past due if management determines that it does not have concern over the collectability of principal and interest because the loan is adequately collateralized and in the process of collection. When loans are placed on nonaccrual status, interest receivable is reversed against interest income in the current period and amortization of any discount ceases. Interest payments received thereafter are applied as a reduction to the remaining principal balance unless management believes that the ultimate collection of the principal is likely, in which case payments are recognized in earnings on a cash basis. Loans are removed from nonaccrual status when they become current as to both principal and interest and the collectability of principal and interest is no longer doubtful. Generally, a nonaccrual loan that is restructured remains on nonaccrual for a period of six months to demonstrate the borrower can meet the restructured terms. 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 may result in the loan being returned to accrual status after a shorter performance period. If the borrower’s ability to meet the revised payment schedule is not reasonably assured, the loan remains classified as a nonaccrual loan. Contractually delinquent ASC 310-30 loans are not classified as nonaccrual as long as the discount continues to be accreted on the corresponding ASC 310-30 pool. Troubled Debt Restructurings In certain situations due to economic or legal reasons related to a borrower’s financial difficulties, the Company may grant a concession to the borrower for other than an insignificant period of time that it would not otherwise consider. At that time, except for ASC 310-30 loans, which are accounted for as pools, the related loan is classified as a troubled debt restructuring (“TDR”) and considered impaired. Modified ASC 310-30 loans accounted for in pools are not accounted for as TDRs, are not separated from the pools and are not classified as impaired loans. The concessions granted may include rate reductions, principal forgiveness, payment forbearance, extensions of maturity at rates of interest below those commensurate with the risk profile of the borrower, and other actions intended to minimize economic loss. A troubled debt restructured loan is generally placed on nonaccrual status at the time of the modification unless the borrower has no history of missed payments for six months prior to the restructuring. If the borrower performs pursuant to the modified loan terms for at least six months and the remaining loan balance is considered collectible, the loan is returned to accrual status. Impaired Loans An ASC 310-30 pool is considered to be impaired when it is probable that the Company will be unable to collect all the cash flows expected at acquisition, plus additional cash flows expected to be collected arising from changes in estimates after acquisition. All ASC 310-30 pools are evaluated individually for impairment based their expected total cash flows. The discount continues to be accreted on ASC 310-30 pools as long as there are expected future cash flows in excess of the current carrying amount of the pool. Non-ASC 310-30 and New loans are considered impaired when, based on current information and events, it is probable that the Company will be unable to collect the scheduled payments of principal or interest when due, according to the contractual terms of the loan agreements. All Non-ASC 310-30 and new loans of $250,000 or greater with an internal risk rating of substandard or below and on nonaccrual, as well as loans classified as TDRs are reviewed individually for impairment on a quarterly basis. Allowance for Loan Losses The Company’s ALL is established for both performing and nonperforming loans. The Company’s ALL is the amount considered adequate to absorb probable losses within the portfolio based on management’s evaluation of the size and current risk characteristics of the loan portfolio. Such evaluation considers numerous factors including, but not limited to, internal risk ratings, loss forecasts, collateral values, geographic location, borrower FICO scores, delinquency rates, nonperforming and restructured loans, origination channels, product mix, underwriting practices, industry conditions, economic trends and net charge-off trends. The ALL relates to new loans, estimated additional losses arising on Non-ASC 310-30 loans subsequent to the acquisitions and additional impairment recognized as a result of decreases in expected cash flows on ASC 310-30 pools due to further credit deterioration or other factors since the acquisitions. The ALL consists of both specific and general components. For ASC 310-30 pools, a specific valuation allowance is established when it is probable that the Company will be unable to collect all of the cash flows expected at acquisition, plus the additional cash flows expected to be collected arising from changes in estimates after acquisition. Expected cash flows are estimated on an individual loan basis and then aggregated at the ASC 310-30 pool level. The analysis of expected pool cash flows incorporates updated pool level expected prepayment rate, default rate, delinquency level and loss severity given default assumptions. These analyses incorporate information about loan performance, collateral values, the financial condition of the borrower, internal risk ratings, the Company’s own and industry historical delinquency and default severity data. The carrying value for ASC 310-30 pools is reduced by the amount of the calculated impairment, which is also the basis in which future accretion income is calculated. A charge-off is taken for an individual ASC 310-30 loan when it is deemed probable that the loan will be resolved for an amount less than its carrying value. The charge-off is taken to the specific allowance or mark as applicable. Alternatively, an improvement in the expected cash flows related to ASC 310-30 pools results in a reduction or recoupment of any previously established specific allowance with a corresponding credit to the provision for loan losses. Any recoupment recorded is limited to the amount of the remaining specific allowance for that pool, with any excess of expected cash flow resulting in a reclassification from non-accretable to accretable yield and an increase in the prospective yield of the pool. The new and Non-ASC 310-30 loan portfolios have limited delinquency and credit loss history and have not yet exhibited an observable loss trend. The credit quality of loans in these loan portfolios are impacted by delinquency status and debt service coverage generated by the borrowers’ businesses and fluctuations in the value of real estate collateral. Management considers delinquency status to be the most meaningful indicator of the credit quality of one-to-four single family residential, home equity loans and lines of credit and other consumer loans. Delinquency statistics are updated at least monthly. Internal risk ratings are considered the most meaningful indicator of credit quality for Non ASC 310-30 and new commercial, construction, land and development, and commercial real estate loans. Internal risk ratings are a key factor in identifying loans that are individually evaluated for impairment and impact management’s estimates of loss factors used in determining the amount of the ALL. Internal risk ratings are updated on a continuous basis. Relationships with balances in excess of $250,000 are re-evaluated at least annually and more frequently if circumstances indicate that a change in risk rating may be warranted. New and Non-ASC 310-30 loans of $250,000 or greater with an internal risk rating of substandard or below and on nonaccrual, as well as loans classified as TDR are reviewed individually for impairment on a quarterly basis. The specific allowance established for these loans is based on a thorough analysis of the most probable source of repayment, including the present value of the loan’s expected future cash flows, the loan’s estimated market value or the estimated fair value of the underlying collateral less costs of disposition. General allowances are established for new and Non-ASC 310-30 loans that are not evaluated individually for impairment, which are evaluated by loan category based on common risk characteristics. In this process, general loan loss factors are established based on the following: industry historical losses segmented by portfolio and asset categories; trends in delinquencies and nonaccruals by loan portfolio segment and asset categories within those segments; portfolio segment and asset category production trends, including average risk ratings and loan-to value (“LTV”) ratios; current industry conditions, including real estate market trends; general economic conditions; credit concentrations by portfolio and asset categories; and portfolio quality, which encompasses an assessment of the quality and relevance of borrowers’ financial information and collateral valuations and average risk rating and migration trends within portfolios and asset categories. Other adjustments for qualitative factors may be made to the allowance after an assessment of internal and external influences on credit quality and loss severity that are not fully reflected in the historical loss or risk rating data. For these measurements, the Company uses assumptions and methodologies that are relevant to estimating the level of impairment and probable losses in the loan portfolio. To the extent that the data supporting such assumptions has limitations, management’s judgment and experience play a key role in recording the allowance estimates. Qualitative adjustments are considered for: portfolio credit quality trends, including levels of delinquency, charge-offs, nonaccrual, restructuring and other factors; policy and credit standards, including quality and experience of lending and credit management; and general economic factors, including national, regional and local conditions and trends. Additions to the ALL are made by provisions charged to earnings. The allowance is decreased by charge-offs of balances no longer deemed collectible. Charge-offs on new and Non-ASC 310-30 loans are recognized as follows: commercial loans are written-off when management determines them to be uncollectible; for unsecured consumer loans at 90 days past due; and for residential real estate loans and secured consumer loans when they become 120 to 180 days past due, depending on the collateral type. The Company reports recoveries on a cash basis at the time received. Recoveries on ASC 310-30 loans that were charged-off and Non-ASC 310-30 loans that were charged-off prior to the Acquisitions are recognized in earnings as income from resolution of acquired assets and do not affect the allowance for loan losses. All other recoveries are credited to the ALL. Loss Share Indemnification Asset and Clawback Liability On March 4, 2015, the Bank entered into an agreement with the FDIC to terminate all loss sharing agreements which were entered into in 2010 and 2011 in conjunction with the Bank’s acquisition of substantially all of the assets (“Covered Assets”) and assumption of substantially all of the liabilities of six failed banks in FDIC-assisted acquisitions. Under the early termination, all rights and obligations of the Bank and the FDIC under the loss share agreements, including the clawback provisions, have been eliminated. The amounts previously covered by the loss sharing agreements were the pre-acquisition book value of the underlying assets, the contractual balance of unfunded commitments that were acquired, and certain future net direct costs applicable to the Covered Assets. As required by the respective loss sharing agreements, the Company submitted a loss share certificate to the FDIC on a quarterly basis requesting reimbursement for losses on covered assets and covered expenses. Covered expenses were recorded in non-interest expense when incurred with an offsetting increase to the loss share indemnification asset and non-interest income for the amount expected to be reimbursed by the FDIC. Certain covered expenses were claimed upon resolution of the Covered Asset, resulting in the expense and the related reimbursements from the FDIC occurring in different periods. The Company reviewed and updated the cash flows expected to be collected on Covered Assets and the FDIC loss share indemnification a

Investment Securities

Investment Securities	12 Months Ended
	Dec. 31, 2016
Investments, Debt and Equity Securities [Abstract]
Investment Securities	INVESTMENT SECURITIES The amortized cost, gross unrealized gains and losses and approximate fair values of securities available for sale are as follows: Amortized Cost Unrealized Fair Value December 31, 2016 Gains Losses (Dollars in thousands) Available for sale: U.S. Government agencies and sponsored enterprises obligations $ 16,512 $ 76 $ 274 $ 16,314 U.S. Government agencies and sponsored enterprises mortgage-backed securities 566,377 1,760 9,691 558,446 State and municipal obligations 28,109 148 578 27,679 Asset-backed securities 574,521 3,852 550 577,823 Corporate bonds and other debt securities 560,191 4,490 5,387 559,294 Preferred stock and other equity securities 137,228 814 1,164 136,878 Total available for sale $ 1,882,938 $ 11,140 $ 17,644 $ 1,876,434 Amortized Cost Unrealized Fair Value December 31, 2015 Gains Losses (Dollars in thousands) Available for sale: U.S. Government agencies and sponsored enterprises obligations $ 20,930 $ 100 $ 142 $ 20,888 U.S. Government agencies and sponsored enterprises mortgage-backed securities 392,123 2,587 1,595 393,115 State and municipal obligations 2,041 174 — 2,215 Asset-backed securities 503,240 383 9,689 493,934 Corporate bonds and other debt securities 450,489 1,596 7,190 444,895 Preferred stock and other equity securities 171,170 1,153 2,748 169,575 Total available for sale $ 1,539,993 $ 5,993 $ 21,364 $ 1,524,622 As part of the Company’s liquidity management strategy, the Company pledges loans and securities to secure borrowings from the FHLB. The Company also pledges securities to collateralize public deposits, repurchase agreements and interest rate swaps. The carrying value of all pledged securities totaled $594.0 million and $939.6 million at December 31, 2016 and 2015 , respectively. The amortized cost and estimated fair value of securities available for sale, by contractual maturity, are as follows: Amortized Cost Fair Value December 31, 2016 (Dollars in thousands) Available for sale: Due in one year or less $ — $ — Due after one year through five years 182,333 182,132 Due after five years through ten years 104,086 102,346 Due after ten years 275,813 277,005 U.S. Government agencies and sponsored enterprises obligations, mortgage-backed securities and tax-exempt mortgage securities, and asset-backed securities 1,183,478 1,178,073 Preferred stock and other equity securities 137,228 136,878 Total available for sale $ 1,882,938 $ 1,876,434 For purposes of the maturity table, U.S Government agencies and sponsored enterprises obligations, agency mortgage-backed securities and asset-backed securities, the principal of which are repaid periodically, are presented as a single amount. The expected lives of these securities will differ from contractual maturities because borrowers may have the right to prepay the underlying loans with or without prepayment penalties. The following tables present the estimated fair values and gross unrealized losses on investment securities available for sale, aggregated by investment category and length of time individual securities have been in a continuous unrealized loss position as of the periods presented: Less than 12 Months 12 Months or More Total December 31, 2016 Fair Value Unrealized Loss Fair Value Unrealized Loss Fair Value Unrealized Loss (Dollars in thousands) Available for sale: U.S. Government agencies and sponsored enterprises obligations $ 11,577 $ 274 $ — $ — $ 11,577 $ 274 U.S. Government agencies and sponsored enterprises mortgage-backed securities 372,145 9,261 11,781 430 383,926 9,691 State and municipal obligations 25,490 578 — — 25,490 578 Asset-backed securities 11,309 21 34,855 529 46,164 550 Corporate bonds and other debt securities 179,925 3,042 77,934 2,345 257,859 5,387 Preferred stock and other equity securities 49,996 1,144 5,123 20 55,119 1,164 Total available for sale $ 650,442 $ 14,320 $ 129,693 $ 3,324 $ 780,135 $ 17,644 Less than 12 Months 12 Months or More Total December 31, 2015 Fair Value Unrealized Loss Fair Value Unrealized Loss Fair Value Unrealized Loss (Dollars in thousands) Available for sale: U.S. Government agencies and sponsored enterprises obligations $ 15,687 $ 142 $ — $ — $ 15,687 $ 142 U.S. Government agencies and sponsored enterprises mortgage-backed securities 225,109 1,391 12,584 204 237,693 1,595 State and municipal obligations — — — — — — Asset-backed securities 354,912 6,290 78,112 3,399 433,024 9,689 Corporate bonds and other debt securities 347,302 7,190 — — 347,302 7,190 Preferred stock and other equity securities 96,543 1,740 19,000 1,008 115,543 2,748 Total available for sale $ 1,039,553 $ 16,753 $ 109,696 $ 4,611 $ 1,149,249 $ 21,364 At December 31, 2016 , the Company’s security portfolio consisted of 364 securities, of which 149 securities were in an unrealized loss position. A total of 113 were in an unrealized loss position for less than 12 months. The unrealized losses for these securities resulted primarily from changes in interest rates and spreads. The Company monitors its investment securities for OTTI. Impairment is evaluated on an individual security basis considering numerous factors, and its relative significance varying by situation. The Company has evaluated the nature of unrealized losses in the investment securities portfolio to determine if OTTI exists. The unrealized losses relate to changes in market interest rates and specific market conditions that do not represent credit-related impairments. Furthermore, the Company does not intend to sell nor is it more likely than not that it will be required to sell these investments before the recovery of their amortized cost basis. Management has completed an assessment of each security in an unrealized loss position for credit impairment, including securities with existing characteristics that are covered under the Volcker Rule, and has determined that no individual security was other-than-temporarily impaired at December 31, 2016 or 2015 . The following describes the basis under which the Company has evaluated OTTI: U.S. Government Agencies and Sponsored Enterprises Obligations and Agency Mortgage-Backed Securities (“MBS”): The unrealized losses associated with U.S. Government agencies and sponsored enterprises obligations and agency MBS are primarily driven by changes in interest rates. These securities have either an explicit or implicit U.S. government guarantee. Asset-Backed Securities and Corporate Bonds & Other Debt Securities: Securities were generally underwritten in accordance with the Company’s investment standards prior to the decision to purchase, without relying on a bond issuer’s guarantee in making the investment decision. These investments are investment grade and will continue to be monitored as part of the Company’s ongoing impairment analysis, but are expected to perform in accordance with their terms. Preferred Stock and Other Equity Securities: The unrealized losses associated with preferred stock and other equity securities in large U.S. financial institutions are primarily driven by changes in interest rates. These securities were generally underwritten in accordance with the Company’s investment standards prior to the decision to purchase. Gross realized gains and losses on the sale of securities available for sale are shown below. The cost of securities sold is based on the specific identification method. Years Ended December 31, 2016 2015 2014 (Dollars in thousands) Gross realized gains $ 3,645 $ 2,065 $ 14,328 Gross realized losses (2,066 ) (1,047 ) (2,281 ) Net realized gains $ 1,579 $ 1,018 $ 12,047

Loans, Net

Loans, Net	12 Months Ended
	Dec. 31, 2016
Receivables [Abstract]
Loans, Net	LOANS, NET The Company’s loan portfolio consists of New and Acquired loans. The Company classifies originated loans and purchased loans not acquired through business combinations as New loans. The Company classifies loans acquired through business combinations as Acquired loans. All acquired loans not specifically excluded under ASC 310-30 are accounted for under ASC 310-30. The remaining portfolio of acquired loans excluded under ASC 310-30 are accounted for under ASC 310-20 and are classified as Non-ASC 310-30 loans. The following tables summarize the Company’s loans by portfolio and segment as of the periods presented, net of deferred fees, costs, premiums and discounts: December 31, 2016 ASC 310-30 Loans Non-ASC 310-30 Loans New Loans (1) Total (Dollars in thousands) Real estate loans: Commercial real estate $ 130,628 $ 38,786 $ 1,438,427 $ 1,607,841 Owner-occupied commercial real estate — 18,477 769,814 788,291 1-4 single family residential 31,476 66,854 2,012,856 2,111,186 Construction, land and development 17,657 6,338 651,253 675,248 Home equity loans and lines of credit — 42,295 49,819 92,114 Total real estate loans $ 179,761 $ 172,750 $ 4,922,169 $ 5,274,680 Other loans: Commercial and industrial $ 15,147 $ 5,815 $ 1,332,869 $ 1,353,831 Consumer 1,681 334 4,368 6,383 Total other loans 16,828 6,149 1,337,237 1,360,214 Total loans held in portfolio $ 196,589 $ 178,899 $ 6,259,406 $ 6,634,894 Allowance for loan losses (37,897 ) Loans held in portfolio, net $ 6,596,997 December 31, 2015 ASC 310-30 Loans Non-ASC 310-30 Loans New Loans (1) Total (Dollars in thousands) Real estate loans: Commercial real estate $ 247,628 $ 55,985 $ 998,141 $ 1,301,754 Owner-occupied commercial real estate — 21,101 524,728 545,829 1-4 single family residential 40,922 84,111 1,541,255 1,666,288 Construction, land and development 28,017 6,338 537,494 571,849 Home equity loans and lines of credit — 49,407 30,945 80,352 Total real estate loans $ 316,567 $ 216,942 $ 3,632,563 $ 4,166,072 Other loans: Commercial and industrial $ 36,783 $ 9,312 $ 972,803 $ 1,018,898 Consumer 2,390 430 5,397 8,217 Total other loans 39,173 9,742 978,200 1,027,115 Total loans held in portfolio $ 355,740 $ 226,684 $ 4,610,763 $ 5,193,187 Allowance for loan losses (29,126 ) Loans held in portfolio, net $ 5,164,061 (1) Balance includes $3.2 million and $7.1 million of deferred fees, costs, and premium and discount as of December 31, 2016 and 2015 , respectively. At December 31, 2016 and 2015 , the UPB of ASC 310-30 loans were $231.5 million and $457.9 million , respectively. At December 31, 2016 and 2015 , the Company had pledged loans as collateral for FHLB advances of $3.20 billion and $2.13 billion , respectively. The recorded investments of consumer mortgage loans secured by residential real estate properties for which formal foreclosure proceedings are in process as of December 31, 2016 totaled $6.3 million . The balance of real estate owned includes $1.7 million and $4.9 million of residential real estate properties as of December 31, 2016 and 2015, respectively. The Company held $433.0 million and $464.2 million of syndicated national loans as of December 31, 2016 and 2015 , respectively. During the years ended December 31, 2016 , 2015 and 2014 the Company purchased approximately $199.0 million , $379.3 million and $377.1 million in 1-4 single family residential loans from third parties. During the years ended December 31, 2016 , 2015 and 2014 , the Company sold approximately $128.7 million , $91.8 million and $39.3 million , respectively in loans to third parties. The accretable discount on ASC 310-30 loans represents the amount by which the undiscounted expected cash flows on such loans exceed their carrying value. The change in expected cash flow for certain ASC 310-30 loan pools resulted in the reclassification of $(28.7) million , $43.0 million and $28.5 million between non-accretable and accretable discount during the years ended December 31, 2016 , 2015 and 2014 , respectively. Changes in accretable discount for ASC 310-30 loans were as follows: Years Ended December 31, 2016 2015 2014 (Dollars in thousands) Balance at January 1, $ 144,152 $ 156,197 $ 148,501 Additions to accretable discount from GFB acquisition — — 40,444 Accretion (54,427 ) (55,019 ) (61,281 ) Reclassifications from non-accretable difference (28,735 ) 42,974 28,533 Balance at December 31, $ 60,990 $ 144,152 $ 156,197

Allowance for Loan Losses

Allowance for Loan Losses	12 Months Ended
	Dec. 31, 2016
Receivables [Abstract]
Allowance for Loan Losses	ALLOWANCE FOR LOAN LOSSES The Company’s accounting method for loans and the corresponding ALL differs depending on whether the loans are New or Acquired. The Company assesses and monitors credit risk and portfolio performance using distinct methodologies for Acquired loans, both ASC 310-30 loans and Non-ASC 310-30 loans, and New loans. Within each of these portfolios, the Company further disaggregates the portfolios into the following segments: Commercial real estate, Owner-occupied commercial real estate, 1-4 single family residential, Construction, land and development, Home equity loans and lines of credit, Commercial and industrial and Consumer. The ALL reflects management’s estimate of probable credit losses inherent in each of the segments. Changes in the ALL by loan portfolio and segment for the years ended December 31, 2016 , 2015 , and 2014 are as follows: Commercial Real Estate Owner- Occupied Commercial Real Estate 1- 4 Single Family Residential Construction, Land and Development Home Equity Loans and Lines of Credit Commercial and Industrial Consumer Total (Dollars in thousands) Balance at January 1, 2016 $ 8,450 $ 2,243 $ 6,425 $ 3,404 $ 483 $ 7,665 $ 456 $ 29,126 Provision (credit) for ASC 310-30 loans (124 ) — 3 (128 ) — (108 ) (156 ) (513 ) Provision (credit) for non-ASC 310-30 loans (1,512 ) (401 ) (31 ) 11 (21 ) 316 8 (1,630 ) Provision (credit) for New loans 2,024 756 982 1,351 213 4,440 32 9,798 Total provision 388 355 954 1,234 192 4,648 (116 ) 7,655 Charge-offs for ASC 310-30 loans (429 ) — (31 ) (33 ) — (79 ) (106 ) (678 ) Charge-offs for non-ASC 310-30 loans — (1 ) — — (35 ) — (6 ) (42 ) Charge-offs for New loans — — — — — — — — Total charge-offs (429 ) (1 ) (31 ) (33 ) (35 ) (79 ) (112 ) (720 ) Recoveries for ASC 310-30 loans 910 — 31 72 — 11 — 1,024 Recoveries for non-ASC 310-30 loans 804 — — — 8 — — 812 Recoveries for New loans — — — — — — — — Total recoveries 1,714 — 31 72 8 11 — 1,836 Ending ALL balance ASC 310-30 loans 2,255 — 29 239 — 277 144 2,944 Non-ASC 310-30 loans 376 61 301 47 243 376 6 1,410 New loans 7,492 2,536 7,049 4,391 405 11,592 78 33,543 Balance at December 31, 2016 $ 10,123 $ 2,597 $ 7,379 $ 4,677 $ 648 $ 12,245 $ 228 $ 37,897 Commercial Real Estate Owner- Occupied Commercial Real Estate 1- 4 Single Family Residential Construction, Land and Development Home Equity Loans and Lines of Credit Commercial and Industrial Consumer Total (Dollars in thousands) Balance at January 1, 2015 $ 8,206 $ 1,020 $ 4,740 $ 2,456 $ 355 $ 5,745 $ 358 $ 22,880 Provision (credit) for ASC 310-30 loans (1,487 ) — (37 ) (681 ) — (39 ) 175 (2,069 ) Provision (credit) for non-ASC 310-30 loans 589 405 46 (39 ) 138 11 6 1,156 Provision (credit) for New loans 1,012 818 2,066 1,317 122 2,417 (16 ) 7,736 Total provision 114 1,223 2,075 597 260 2,389 165 6,823 Charge-offs for ASC 310-30 loans (270 ) — (436 ) (56 ) — (643 ) (60 ) (1,465 ) Charge-offs for non-ASC 310-30 loans — — (128 ) — (132 ) — (8 ) (268 ) Charge-offs for New loans — — — — — (15 ) — (15 ) Total charge-offs (270 ) — (564 ) (56 ) (132 ) (658 ) (68 ) (1,748 ) Recoveries for ASC 310-30 loans 400 — 174 407 — 177 1 1,159 Recoveries for non-ASC 310-30 loans — — — — — — — — Recoveries for New loans — — — — — 12 — 12 Total recoveries 400 — 174 407 — 189 1 1,171 Ending ALL balance ASC 310-30 loans 1,898 — 26 328 — 453 406 3,111 Non-ASC 310-30 loans 1,084 463 332 36 291 60 4 2,270 New loans 5,468 1,780 6,067 3,040 192 7,152 46 23,745 Balance at December 31, 2015 $ 8,450 $ 2,243 $ 6,425 $ 3,404 $ 483 $ 7,665 $ 456 $ 29,126 Commercial Real Estate Owner- Occupied Commercial Real Estate 1- 4 Single Family Residential Construction, Land and Development Home Equity Loans and Lines of Credit Commercial and Industrial Consumer Total (Dollars in thousands) Balance at January 1, 2014 $ 4,458 $ 376 $ 1,443 $ 1,819 $ 265 $ 6,198 $ 174 $ 14,733 Provision (credit) for ASC 310-30 loans 735 — 271 107 — (716 ) 245 642 Provision (credit) for non-ASC 310-30 loans 490 53 362 75 442 67 35 1,524 Provision (credit) for New loans 2,678 591 2,695 895 (56 ) 1,229 45 8,077 Total provision 3,903 644 3,328 1,077 386 580 325 10,243 Charge-offs for ASC 310-30 loans (270 ) — (31 ) (1,244 ) — (678 ) (113 ) (2,336 ) Charge-offs for non-ASC 310-30 loans — — — — (296 ) (24 ) (29 ) (349 ) Charge-offs for New loans — — — (6 ) — (348 ) — (354 ) Total charge-offs (270 ) — (31 ) (1,250 ) (296 ) (1,050 ) (142 ) (3,039 ) Recoveries for ASC 310-30 loans 115 — — 810 — 13 1 939 Recoveries for non-ASC 310-30 loans — — — — — — — — Recoveries for New loans — — — — — 4 — 4 Total recoveries 115 — — 810 — 17 1 943 Ending ALL balance ASC 310-30 loans 3,255 — 325 658 — 958 290 5,486 Non-ASC 310-30 loans 495 58 414 75 285 49 6 1,382 New loans 4,456 962 4,001 1,723 70 4,738 62 16,012 Balance at December 31, 2014 $ 8,206 $ 1,020 $ 4,740 $ 2,456 $ 355 $ 5,745 $ 358 $ 22,880 Credit Quality Indicators In evaluating credit risk, the Company looks at multiple factors; however, management considers delinquency status to be the most meaningful indicator of the credit quality of 1-4 single family residential, home equity loans and lines of credit and consumer loans. Delinquency statistics are updated at least monthly. Internal risk ratings are considered the most meaningful indicator of credit quality for Non-ASC 310-30 and New commercial, construction, land and development and commercial real estate loans. Internal risk ratings are updated on a continuous basis. The following tables present an aging analysis of the recorded investment for delinquent loans by portfolio and segment (excluding loans accounted for under ASC 310-30): Accruing December 31, 2016 30 to 59 Days Past Due 60 to 89 Days Past Due 90 Days or More Past Due Non- Accrual Total (Dollars in thousands) New loans: Real estate loans: Commercial real estate $ — $ — $ — $ 581 $ 581 Owner-occupied commercial real estate — — — — — 1-4 single family residential 1,593 — — 1,821 3,414 Construction, land and development 449 — — — 449 Home equity loans and lines of credit 255 — — 243 498 Total real estate loans $ 2,297 $ — $ — $ 2,645 $ 4,942 Other loans: Commercial and industrial $ — $ — $ — $ — $ — Consumer — — — — — Total other loans — — — — — Total new loans $ 2,297 $ — $ — $ 2,645 $ 4,942 Acquired loans: Real estate loans: Commercial real estate $ — $ — $ — $ 4,720 $ 4,720 Owner-occupied commercial real estate 93 — — 2,502 2,595 1-4 single family residential 207 — — 2,728 2,935 Construction, land and development — — — — — Home equity loans and lines of credit 520 42 — 2,557 3,119 Total real estate loans $ 820 $ 42 $ — $ 12,507 $ 13,369 Other loans: Commercial and industrial $ — $ 128 $ — $ 325 $ 453 Consumer — — — — — Total other loans — 128 — 325 453 Total acquired loans $ 820 $ 170 $ — $ 12,832 $ 13,822 Accruing December 31, 2015 30 to 59 Days Past Due 60 to 89 Days Past Due 90 Days or More Past Due Non- Accrual Total (Dollars in thousands) New loans: Real estate loans: Commercial real estate $ — $ — $ — $ — $ — Owner-occupied commercial real estate — 113 — — 113 1-4 single family residential 9,439 869 — 1,454 11,762 Construction, land and development 467 — — — 467 Home equity loans and lines of credit 64 — — — 64 Total real estate loans $ 9,970 $ 982 $ — $ 1,454 $ 12,406 Other loans: Commercial and industrial $ — $ — $ — $ — $ — Consumer — — — — — Total other loans — — — — — Total new loans $ 9,970 $ 982 $ — $ 1,454 $ 12,406 Acquired Loans: Real estate loans: Commercial real estate $ 63 $ — $ — $ 5,282 $ 5,345 Owner-occupied commercial real estate — 95 — 2,247 2,342 1-4 single family residential 1,393 697 — 3,016 5,106 Construction, land and development — — — — — Home equity loans and lines of credit 490 97 — 2,295 2,882 Total real estate loans $ 1,946 $ 889 $ — $ 12,840 $ 15,675 Other loans: Commercial and industrial $ 90 $ — $ — $ 877 $ 967 Consumer — — — 23 23 Total other loans 90 — — 900 990 Total acquired loans $ 2,036 $ 889 $ — $ 13,740 $ 16,665 Loans exhibiting potential credit weaknesses that deserve management's attention and that, if left uncorrected, may result in deterioration of the repayment capacity of the borrower, are categorized as special mention. Loans with well-defined credit weaknesses including payment defaults, declining collateral values, frequent overdrafts, operating losses, increasing balance sheet leverage, inadequate cash flow, project cost overruns, unreasonable construction delays, past due real estate taxes or exhausted interest reserves, are assigned an internal risk rating of substandard. A loan with a weakness so severe that collection in full is highly questionable or improbable will be assigned an internal risk rating of doubtful. The following table summarizes the Company’s commercial Non-ASC 310-30 and New loans by key indicators of credit quality. Loans accounted for under ASC 310-30 are excluded from the following analysis because their related allowance is determined by loan pool performance: December 31, 2016 Pass Special Mention Substandard Doubtful (Dollars in thousands) New loans: Commercial real estate $ 1,435,633 $ — $ 2,794 $ — Owner-occupied commercial real estate 769,640 174 — — Construction, land and development 651,253 — — — Commercial and industrial 1,332,869 — — — Total new loans $ 4,189,395 $ 174 $ 2,794 $ — Acquired loans: Commercial real estate $ 33,705 $ — $ 5,081 $ — Owner-occupied commercial real estate 18,388 — 89 — Construction, land and development 6,338 — — — Commercial and industrial 5,134 — 681 — Total acquired loans $ 63,565 $ — $ 5,851 $ — December 31, 2015 Pass Special Substandard Doubtful (Dollars in thousands) New loans: Commercial real estate $ 998,141 $ — $ — $ — Owner-occupied commercial real estate 524,728 — — — Construction, land and development 537,494 — — — Commercial and industrial 972,803 — — — Total new loans $ 3,033,166 $ — $ — $ — Acquired loans: Commercial real estate $ 50,328 $ — $ 5,657 $ — Owner-occupied commercial real estate 18,854 — 2,247 — Construction, land and development 6,338 — — — Commercial and industrial 6,715 1,352 1,245 — Total acquired loans $ 82,235 $ 1,352 $ 9,149 $ — Internal risk ratings are key factors in identifying loans to be individually evaluated for impairment and impact management’s estimates of loss factors used in determining the amount of the ALL. The following table shows the Company’s investment in loans disaggregated based on the method of evaluating impairment: Loans - Recorded Investment Allowance for Credit Loss December 31, 2016 Individually Evaluated for Impairment Collectively Evaluated for Impairment ASC 310- 30 Loans Individually Evaluated for Impairment Collectively Evaluated for Impairment ASC 310- 30 Loans (Dollars in thousands) New loans: Real estate loans: Commercial real estate $ 581 $ 1,437,846 $ — $ 221 $ 7,271 $ — Owner-occupied commercial real estate — 769,814 — — 2,536 — 1-4 single family residential 524 2,012,332 — — 7,049 — Construction, land and development — 651,253 — — 4,391 — Home equity loans and lines of credit 66 49,753 — 66 339 — Total real estate loans $ 1,171 $ 4,920,998 $ — $ 287 $ 21,586 $ — Other loans Commercial and industrial $ — $ 1,332,869 $ — $ — $ 11,592 $ — Consumer — 4,368 — — 78 — Total other loans $ — $ 1,337,237 $ — $ — $ 11,670 $ — Acquired loans: Real estate loans: Commercial real estate $ 4,720 $ 34,066 $ 130,628 $ 175 $ 201 $ 2,255 Owner-occupied commercial real estate — 18,477 — — 61 — 1-4 single family residential 1,612 65,242 31,476 88 213 29 Construction, land and development — 6,338 17,657 — 47 239 Home equity loans and lines of credit 1,050 41,245 — — 243 — Total real estate loans $ 7,382 $ 165,368 $ 179,761 $ 263 $ 765 $ 2,523 Other loans Commercial and industrial 325 5,490 15,147 325 51 277 Consumer — 334 1,681 — 6 144 Total other loans $ 325 $ 5,824 $ 16,828 $ 325 $ 57 $ 421 Loans - Recorded Investment Allowance for Credit Loss December 31, 2015 Individually Evaluated for Impairment Collectively Evaluated for Impairment ASC 310- 30 Loans Individually Evaluated for Impairment Collectively Evaluated for Impairment ASC 310- 30 Loans (Dollars in thousands) New loans: Real estate loans: Commercial real estate $ — $ 998,141 $ — $ — $ 5,468 $ — Owner-occupied commercial real estate — 524,728 — — 1,780 — 1-4 single family residential — 1,541,255 — — 6,067 — Construction, land and development — 537,494 — — 3,040 — Home equity loans and lines of credit — 30,945 — — 192 — Total real estate loans $ — $ 3,632,563 $ — $ — $ 16,547 $ — Other loans Commercial and industrial — 972,803 — — 7,152 — Consumer — 5,397 — — 46 — Total other loans $ — $ 978,200 $ — $ — $ 7,198 $ — Acquired Loans: Real estate loans: Commercial real estate $ 5,282 $ 50,703 $ 247,628 $ 829 $ 255 $ 1,898 Owner-occupied commercial real estate 2,244 18,857 — 399 64 — 1-4 single family residential 263 83,848 40,922 — 332 26 Construction, land and development — 6,338 28,017 — 36 328 Home equity loans and lines of credit 916 48,491 — — 291 — Total real estate loans $ 8,705 $ 208,237 $ 316,567 $ 1,228 $ 978 $ 2,252 Other loans Commercial and industrial 877 8,435 36,783 — 60 453 Consumer — 430 2,390 — 4 406 Total other loans $ 877 $ 8,865 $ 39,173 $ — $ 64 $ 859 The following tables set forth certain information regarding the Company’s impaired loans (excluding loans accounted for under ASC 310-30) that were evaluated for specific reserves: Impaired Loans - With Allowance Impaired Loans - With no Allowance December 31, 2016 Recorded Investment Unpaid Principal Balance Related Allowance Recorded Investment Unpaid Principal Balance (Dollars in thousands) New loans: Real estate loans: Commercial real estate $ 581 $ 581 $ 221 $ — $ — Owner-occupied commercial real estate — — — — — 1-4 single family residential — — — 524 524 Construction, land and development — — — — — Home equity loans and lines of credit 66 66 66 — — Total real estate loans $ 647 $ 647 $ 287 $ 524 $ 524 Other loans Commercial and industrial — — — — — Consumer — — — — — Total other loans $ — $ — $ — $ — $ — Acquired loans: Real estate loans: Commercial real estate $ 630 $ 650 $ 175 $ 4,090 $ 5,397 Owner-occupied commercial real estate — — — — — 1-4 single family residential 565 512 88 1,047 1,047 Construction, land and development — — — — — Home equity loans and lines of credit — — — 1,050 1,415 Total real estate loans $ 1,195 $ 1,162 $ 263 $ 6,187 $ 7,859 Other loans Commercial and industrial 325 325 325 — — Consumer — — — — — Total other loans $ 325 $ 325 $ 325 $ — $ — Impaired Loans - With Allowance Impaired Loans - With no Allowance December 31, 2015 Recorded Investment Unpaid Principal Balance Related Allowance Recorded Investment Unpaid Principal Balance (Dollars in thousands) New loans: Real estate loans: Commercial real estate $ — $ — $ — $ — $ — Owner-occupied commercial real estate — — — — — 1-4 single family residential — — — — — Construction, land and development — — — — — Home equity loans and lines of credit — — — — — Total real estate loans $ — $ — $ — $ — $ — Other loans Commercial and industrial — — — — — Consumer — — — — — Total other loans $ — $ — $ — $ — $ — Acquired loans: Real estate loans: Commercial real estate $ 4,555 $ 4,924 $ 829 $ 727 $ 750 Owner-occupied commercial real estate 2,244 2,310 399 — — 1-4 single family residential — — — 263 264 Construction, land and development — — — — — Home equity loans and lines of credit — — — 916 1,048 Total real estate loans $ 6,799 $ 7,234 $ 1,228 $ 1,906 $ 2,062 Other loans Commercial and industrial — — — 877 1,825 Consumer — — — — — Total other loans $ — $ — $ — $ 877 $ 1,825 Years Ended December 31, 2016 2015 Average Recorded Investment Interest Income Recognized Average Recorded Investment Interest Income Recognized (Dollars in thousands) Impaired loans with no related allowance: Real estate loans: Commercial real estate $ 4,245 $ — $ 414 $ — Owner-occupied commercial real estate — — — — 1-4 single family residential 816 — 133 — Construction, land and development — — — — Home equity loans and lines of credit 1,272 — 925 — Total real estate loans $ 6,333 $ — $ 1,472 $ — Other loans: Commercial and industrial — — 627 — Consumer — — — — Total other loans $ — $ — $ 627 $ — Impaired loans with an allowance: Real estate loans: Commercial real estate $ 959 $ — $ 4,789 $ — Owner-occupied commercial real estate — — 1,144 — 1-4 single family residential 424 — — — Construction, land and development — — — — Home equity loans and lines of credit 44 — — — Total real estate loans $ 1,427 $ — $ 5,933 $ — Other loans: Commercial and industrial 170 — — — Consumer — — — — Total other loans $ 170 $ — $ — $ —

Covered Assets and Loss Sharing

Covered Assets and Loss Sharing Agreements	12 Months Ended
	Dec. 31, 2016
Text Block [Abstract]
Covered Assets and Loss Sharing Agreements	COVERED ASSETS AND LOSS SHARING AGREEMENTS On March 4, 2015, the Bank entered into an agreement with the FDIC to terminate all loss sharing agreements which were entered into in 2010 and 2011 in conjunction with the Bank’s acquisition of substantially all of the assets (“covered assets”) and assumption of substantially all of the liabilities of six failed banks in FDIC-assisted acquisitions. Under the early termination agreements, all rights and obligations of the Bank and the FDIC under the loss share agreements, including the clawback provisions, have been eliminated. The Bank paid the FDIC $14.8 million as consideration for the early termination to settle its obligation under the FDIC Clawback Liability. The early termination was recorded in the Bank’s financial statements by removing the FDIC Indemnification Asset receivable, the FDIC Clawback liability and recording a one-time, pre-tax loss on termination of $65.5 million . Subsequent to acquisition, when a provision for loan loss is required for a loan that is covered under a loss sharing agreement, the Company records an increase in the loss share indemnification asset and an increase to noninterest income in the consolidated statements of income based on the applicable loss sharing ratio. An increases in the loss share indemnification asset of $3.9 million was included in noninterest income for the year ended December 31, 2014 related to the provision for loan losses on Covered Loans, including both ASC 310-30 and Non-ASC 310-30 loans. Changes in the loss share indemnification asset for the periods presented were as follows: Years Ended December 31, 2016 2015 2014 (Dollars in thousands) Balance at beginning of period $ — $ 63,168 $ 87,229 Termination of FDIC loss sharing agreements — (63,168 ) — Reimbursable expenses — — 4,999 Amortization — — (24,653 ) Income resulting from impairment and charge-off of covered assets, net — — 3,948 Expense resulting from recoupment and disposition of covered assets, net — — (3,627 ) FDIC claims submissions — — (4,728 ) Balance at end of period $ — $ — $ 63,168 The following table summarizes the changes in the clawback liability, included in other liabilities, for the periods presented: Years Ended December 31, 2016 2015 2014 (Dollars in thousands) Balance at beginning of period $ — $ 13,846 $ 11,753 Termination of FDIC loss sharing agreements — (13,846 ) — Amortization impact — — 748 Remeasurement impact — — 1,345 Balance at end of period $ — $ — $ 13,846

Premises and Equipment

Premises and Equipment	12 Months Ended
	Dec. 31, 2016
Property, Plant and Equipment [Abstract]
Premises and Equipment	NOTE 6. PREMISES AND EQUIPMENT The major components of premises and equipment are as follows: December 31, 2016 2015 (Dollars in thousands) Land $ 7,624 $ 8,256 Building and improvements 24,653 25,413 Furniture, fixtures and equipment 13,197 11,836 Leasehold improvements 4,454 2,978 Construction in Process 525 240 Software 3,021 2,859 Total 53,474 51,582 Less: Accumulated depreciation (16,822 ) (14,628 ) Total premises and equipment, net $ 36,652 $ 36,954 Total depreciation expense for the years ended December 31, 2016 , 2015 and 2014 totaled $3.6 million , $3.8 million and $3.9 million , respectively. Operating Leases The Company has entered into various operating leases for premises and equipment used in its operation. Total rental expense for the years ended December 31, 2016 , 2015 and 2014 totaled $7.6 million , $7.5 million , and $7.3 million , respectively. As of December 31, 2016, future minimum lease payments under non-cancellable operating leases were as follows (in thousands): Years Ended December 31, 2017 2018 2019 2020 2021 Thereafter Total Future minimum lease payments $ 5,128 $ 4,994 $ 4,597 $ 4,336 $ 3,118 $ 14,737 $ 36,910

Goodwill and Intangibles

Goodwill and Intangibles	12 Months Ended
	Dec. 31, 2016
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Intangibles	GOODWILL AND INTANGIBLES Goodwill and core deposit intangibles are summarized as follows: December 31, 2016 2015 (Dollars in thousands) Goodwill $ 81,204 $ 81,204 Core deposit intangible 14,370 14,370 Less: Accumulated amortization (9,679 ) (8,490 ) Net core deposit intangible $ 4,691 $ 5,880 Amortization expense for core deposit intangibles for the years ended December 31, 2016 , 2015 , and 2014 totaled $1.2 million , $1.6 million and $1.7 million , respectively. The estimated amount of amortization expense for core deposit intangible assets to be recognized over the next five fiscal years is as follows: 2017 2018 2019 2020 2021 (Dollars in thousands) Core deposit intangible $ 1,023 $ 1,023 $ 1,023 $ 491 $ 360

Derivatives

Derivatives	12 Months Ended
	Dec. 31, 2016
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivatives	DERIVATIVES The Company is a party to interest rate derivatives that are not designated as hedging instruments. These derivatives are interest rate swaps that the Company enters into with customers to allow customers to convert variable rate loans to fixed rates. At the same time the interest rate swap is entered into with the customer, an offsetting interest rate swap is entered into with another financial institution. The changes in the fair value of the swaps offset each other, except for any differences in the credit risk of the counterparties, which is determined by considering the risk rating, probability of default and loss of given default of each counterparty. The Company recorded $4.4 million , $5.2 million and $4.5 million of customer swap fees in noninterest income in the accompanying consolidated statements of income for the years ended December 31, 2016 , 2015 , and 2014 , respectively. No credit changes in counterparty credit were identified. There was no change in the fair value of derivative assets and derivative liabilities attributable to credit risk included in noninterest expense in the consolidated statements of income for the years ended December 31, 2016 , 2015 , and 2014 . No derivative positions held by the Company as of December 31, 2016 were designated as hedging instruments under ASC 815-10. The following tables summarize the Company’s derivatives outstanding included in other assets and other liabilities in the accompanying consolidated balance sheets: Derivative Assets Derivative Liabilities December 31, 2016 Notional Fair Value Notional Fair Value (Dollars in thousands) Derivatives not designated as hedging instruments under ASC 815-10 Interest rate contracts—pay floating, receive fixed $ 708,426 $ 15,268 $ 182,848 $ 2,908 Interest rate contracts—pay fixed, receive floating 182,848 — 708,426 12,360 Total derivatives $ 891,274 $ 15,268 $ 891,274 $ 15,268 Derivative Assets Derivative Liabilities December 31, 2015 Notional Fair Value Notional Fair Value (Dollars in thousands) Derivatives not designated as hedging instruments under ASC 815-10 Interest rate contracts—pay floating, receive fixed $ 690,175 $ 21,553 $ 8,298 $ 2 Interest rate contracts—pay fixed, receive floating 8,298 — 690,175 21,551 Total derivatives $ 698,473 $ 21,553 $ 698,473 $ 21,553 The derivative transactions entered into with a financial institution are subject to an enforceable master netting arrangement. The following table summarizes the gross and net fair values of the Company’s derivatives outstanding with this counterparty included in other liabilities in the accompanying consolidated balance sheets: December 31, 2016 Gross amounts of recognized liabilities Gross amounts offset in the consolidated balance sheets Net amounts in the consolidated balance sheets (Dollars in thousands) Offsetting derivative liabilities Counterparty A—Interest rate contracts $ 15,268 $ (2,908 ) $ 12,360 Total $ 15,268 $ (2,908 ) $ 12,360 December 31, 2015 Gross amounts of recognized liabilities Gross amounts offset in the consolidated balance sheets Net amounts in the consolidated balance sheets (Dollars in thousands) Offsetting derivative liabilities Counterparty A—Interest rate contracts $ 21,553 $ (2 ) $ 21,551 Total $ 21,553 $ (2 ) $ 21,551 At December 31, 2016 , the Company has pledged investment securities available for sale with a carrying amount of $24.7 million as collateral for the interest rate swaps in a liability position. The amount of collateral required to be posted by the Company varies based on the settlement value of outstanding swaps. As of December 31, 2016 and 2015 , substantially all of the floating rate terms within the interest rate contracts held by the Company were indexed to 1-month LIBOR . The fair value of the derivative assets and liabilities are included in a table in Note 19 “Fair Value Measurements,” in the line items “Derivative assets” and “Derivative liabilities.”

Deposits

Deposits	12 Months Ended
	Dec. 31, 2016
Banking and Thrift [Abstract]
Deposits	DEPOSITS The following table sets forth the Company’s deposits by category: December 31, 2016 2015 (Dollars in thousands) Noninterest-bearing demand deposits $ 905,905 $ 637,047 Interest-bearing demand deposits 1,004,452 608,454 Interest-bearing NOW accounts 398,823 347,832 Savings and money market accounts 2,780,697 1,979,132 Time deposits 2,215,794 1,858,173 Total deposits $ 7,305,671 $ 5,430,638 Time deposits $100,000 and greater $ 1,675,162 $ 1,323,520 Time deposits greater than $250,000 843,683 587,590 The aggregate amount of overdraft demand deposits reclassified to loans was $468 thousand at December 31, 2016 . The aggregate amount of maturities for time deposits for each of the five years following the latest balance sheet date totaled $1.58 billion , $463.8 million , $160.0 million , $11.0 million and $2.7 million , respectively. The Company holds brokered deposits through an insured deposit sweep program of $693.9 million and $425.1 million at December 31, 2016 and 2015 , respectively. The Company holds brokered certificates of deposit of $1.2 million and $3.3 million at December 31, 2016 and 2015 , respectively.

FHLB and Other Borrowings

FHLB and Other Borrowings	12 Months Ended
	Dec. 31, 2016
Federal Home Loan Banks [Abstract]
FHLB and Other Borrowings	FHLB AND OTHER BORROWINGS Advances from the FHLB and other borrowings outstanding for the periods presented are as follows: December 31, 2016 Range of Contractual Interest Rates December 31, 2015 Range of Contractual Interest Rates (Dollars in thousands) Repayable during the years ending December 31, 2017 $ 473,870 0.62% - 4.35% $ 843,754 0.35% - 1.35% 2018 50,000 1.53 % 72,500 4.05% - 4.35% 2019 and beyond 200,000 1.34% - 1.61% 50,000 1.53 % Total contractual outstanding 723,870 966,254 Fair value adjustment 846 3,482 Total FHLB advances and securities sold under repurchase agreements 724,716 969,736 Retail repurchase agreements 26,387 13,447 Total borrowings $ 751,103 $ 983,183 For the years ended December 31, 2016 and 2015 , the Company maintained advances with the FHLB averaging $612.1 million and $973.4 million , respectively, with an average cost of approximately 0.94% and 0.41% , respectively. Substantially all FHLB advances outstanding at December 31, 2016 and 2015 had fixed interest rates. Interest expense on FHLB advances was $5.8 million , $4.0 million and $5.0 million for the years ended December 31, 2016 , 2015 and 2014 , respectively, including a reduction for amortization of the fair value adjustment on FHLB advances of $380 thousand , for the year ended December 31, 2014. The fair value adjustment is being amortized as a reduction to interest expense over the remaining term of the advances using the effective yield method. The Company pledges loans and securities as collateral for FHLB advances. See Notes 3 and 4 to these consolidated financial statements for further information. At December 31, 2016 , the Company had additional capacity to borrow from the FHLB of $1.52 billion . Also, at December 31, 2016 , the Company has unused credit lines with financial institutions of $345.0 million .

Regulatory Capital

Regulatory Capital	12 Months Ended
	Dec. 31, 2016
Banking and Thrift [Abstract]
Regulatory Capital	REGULATORY CAPITAL The Company and the Bank are subject to regulatory capital adequacy requirements promulgated by federal regulatory agencies. The Board of Governors of the Federal Reserve System establishes capital requirements, including well capitalized standards, for the Company, and the OCC has similar requirements for the Bank. Failure to meet minimum capital requirements can initiate certain mandatory and possibly additional discretionary actions by regulators that, if undertaken, could have a direct material effect on the Company’s financial statements. The capital amounts and classification are also subject to qualitative judgments by the regulators about components, risk weightings and other factors. Banking regulations identify five capital categories for insured depository institutions: well capitalized, adequately capitalized, undercapitalized, significantly undercapitalized and critically undercapitalized. As of December 31, 2016 and 2015 , all capital ratios of the Company and the Bank exceeded the well capitalized levels under the applicable regulatory capital adequacy guidelines. The ability of the Company and the Bank to pay dividends is subject to statutory and regulatory restrictions on the payment of cash dividends. Quantitative measures established by regulation to ensure capital adequacy require the Company and Bank to maintain minimum amounts and ratios (set forth in the following table) of total and Tier I capital (as defined) to average assets (as defined). Management believes, at December 31, 2016 and 2015 , that the Company and Bank met all capital adequacy requirements to which they are subject. The Bank’s and Company’s regulatory capital levels are as follows: Actual Minimum Capital Requirement Minimum To Be Well Capitalized Amount Ratio Amount Ratio Amount Ratio (Dollars in thousands) December 31, 2016 Tier 1 leverage ratio Company $ 891,584 10.3 % $ 346,518 4.0 % $ 433,148 5.0 % Bank 795,207 9.3 % 340,856 4.0 % 426,070 5.0 % Common equity tier 1 capital ratio Company 891,584 11.9 % 336,328 4.5 % 485,807 6.5 % Bank 795,207 10.9 % 329,194 4.5 % 475,503 6.5 % Tier 1 risk-based capital ratio Company 891,584 11.9 % 448,437 6.0 % 597,916 8.0 % Bank 795,207 10.9 % 438,926 6.0 % 585,234 8.0 % Total risk-based capital ratio Company 930,821 12.5 % 597,916 8.0 % 747,395 10.0 % Bank 834,679 11.4 % 585,234 8.0 % 731,543 10.0 % Actual Minimum Capital Requirement Minimum To Be Well Capitalized Amount Ratio Amount Ratio Amount Ratio (Dollars in thousands) December 31, 2015 Tier 1 leverage ratio Company $ 717,229 10.3 % $ 278,319 4.0 % $ 347,899 5.0 % Bank 678,608 9.9 % 273,721 4.0 % 342,151 5.0 % Common equity tier 1 capital ratio Company 717,229 12.1 % 267,511 4.5 % 386,405 6.5 % Bank 678,608 11.6 % 262,378 4.5 % 378,991 6.5 % Tier 1 risk-based capital ratio Company 717,229 12.1 % 356,682 6.0 % 475,576 8.0 % Bank 678,608 11.6 % 349,838 6.0 % 466,450 8.0 % Total risk-based capital ratio Company 717,229 12.1 % 475,576 8.0 % 594,470 10.0 % Bank 678,608 11.6 % 466,450 8.0 % 583,063 10.0 % The FDIC Order that the Bank entered into upon the acquisition of Old Premier requires the institution to maintain a ratio of Tier 1 common equity to total assets of at least 10% for a period of three years following its first FDIC-assisted transaction, and thereafter maintain a capital level sufficient to be well capitalized under regulatory standards during the remaining period of ownership of the investors subject to the FDIC Order. The Bank is currently subject to the well capitalized requirement but is no longer subject to the 10% Tier 1 common equity ratio requirement. The Bank is subject to regulations of certain federal and state agencies and can be periodically examined by those authorities. As a consequence, the Bank’s business is susceptible to the impacts of federal legislation and regulations issued by, but not limited to, the Board of Governors of the Federal Reserve System, OCC and FDIC.

Accumulated Other Comprehensive

Accumulated Other Comprehensive Income	12 Months Ended
	Dec. 31, 2016
Equity [Abstract]
Accumulated Other Comprehensive Income	ACCUMULATED OTHER COMPREHENSIVE INCOME Changes in AOCI for the periods indicated are summarized as follows: Year Ended December 31, 2016 Before Tax Tax Effect Net of Tax (Dollars in thousands) Balance at beginning of period $ (15,371 ) $ 5,928 $ (9,443 ) Unrealized gain (loss) on investment securities available for sale: Net unrealized holdings gain (loss) arising during the period 11,582 (4,467 ) 7,115 Amounts reclassified to (gain) loss on investment securities (2,715 ) 1,048 (1,667 ) Balance at end of period $ (6,504 ) $ 2,509 $ (3,995 ) Year Ended December 31, 2015 Before Tax Tax Effect Net of Tax (Dollars in thousands) Balance at beginning of period $ 1,106 $ (427 ) $ 679 Unrealized gain (loss) on investment securities available for sale: Net unrealized holdings gain (loss) arising during the period (13,997 ) 5,399 (8,598 ) Amounts reclassified to (gain) loss on investment securities (2,480 ) 956 (1,524 ) Balance at end of period $ (15,371 ) $ 5,928 $ (9,443 ) Year Ended December 31, 2014 Before Tax Tax Effect Net of Tax (Dollars in thousands) Balance at beginning of period $ (2,565 ) $ 990 $ (1,575 ) Unrealized gain (loss) on investment securities available for sale: Net unrealized holdings gain (loss) arising during the period 11,481 (4,430 ) 7,051 Amounts reclassified to (gain) loss on investment securities (7,810 ) 3,013 (4,797 ) Balance at end of period $ 1,106 $ (427 ) $ 679

Stockholders' Equity

Stockholders' Equity	12 Months Ended
	Dec. 31, 2016
Equity [Abstract]
Stockholders' Equity	STOCKHOLDERS’ EQUITY Class A and Class B Common Stock The shares of common stock of the Company are divided into two classes: Class A common stock and Class B common stock. The Class A common stock possesses all of the voting power for all matters requiring action by holders of the Company’s common stock, with certain limited exceptions. Each share of Class B common stock is convertible into one share of Class A common stock, subject to certain restrictions . The Class A common stock is not convertible. Other than with respect to voting rights and the restrictions on transfer and conversion relating to the Class B common stock, the Class A common stock and the Class B common stock are treated equally and identically, including with respect to distributions. In 2016 and 2015 , the Company converted 3,545,408 and 3,206,166 , respectively, Class B common shares to Class A common shares in a voluntary exchange with certain shareholders. This exchange was made on 1 :1 ratio and no consideration was paid or received by the Company. Total Class B common shares issued and outstanding decreased by 3,545,408 and 3,206,166 while Class A common shares issued and outstanding increased by 3,545,408 and 3,206,166 for the years ended December 31, 2016 and 2015 , respectively. This is recorded as “Exchange of B shares to A shares” in the consolidated statements of changes in stockholders’ equity. Preferred Stock There are 10 million preferred shares authorized and none issued and outstanding at December 31, 2016 or 2015 . Preferred stock has a par value of $.001 . Treasury Stock During the year ended December 31, 2016 , the Company repurchased 717,115 shares of Class A common stock at a weighted average price of $33.08 per share for an aggregate amount of $23.7 million from shareholders. The Company accounted for these transactions under the cost method and held 2,886,621 common shares with a cost of $77.4 million in Treasury Stock as of December 31, 2016 . During the year ended December 31, 2015 the Company repurchased 1,050,062 shares of Class A common stock at a weighted average price of $33.20 per share for an aggregate amount of $34.9 million from shareholders. The Company accounted for these transactions under the cost method and held 2,169,506 common shares with a cost of $53.6 million in Treasury Stock as of December 31, 2015 .These transactions are recorded as “Treasury stock purchases” in the accompanying consolidated statements of changes in stockholders’ equity. Warrants During 2009, the Company issued, as a distribution in respect of its existing equity, warrants to purchase an aggregate of 3,310,428 shares of Class A common stock (the “2009 Warrants”). The 2009 Warrants provide the recipient a right to purchase one share of Class A common stock for an exercise price ranging between $24.24 and $28.28 per warrant. The recipients can only exercise the warrants on the sixth, eighteenth, and thirtieth month anniversaries of the occurrence of a Qualified IPO . The Company’s public offering constituted a Qualified IPO with respect to the Company’s Amended 2009 Warrants. Prior to December 31, 2013, the Company had not recorded any expense in the accompanying consolidated financial statements associated with the Original 2009 Warrants as it was a distribution in respect of its then existing equity. On November 19, 2013, the Company amended the 2009 Warrants (the “Amended 2009 Warrants”) whereby the exercise period and expiration date was extended to November 12, 2019 . The Amended 2009 Warrants also provide clarification for certain matters relating to the definition of a “Special Transaction”. The incremental change in fair value of the Amended 2009 Warrants was determined utilizing the Black-Scholes pricing model methodology as of November 19, 2013, the date of amendment, compared to the fair value of the Original 2009 Warrants immediately prior to the modification. The amount related to the change in fair value resulting from the modification at grant date was $4.0 million . The assumptions used to calculate the fair values of the Original 2009 Warrants and Amended 2009 Warrants are summarized below: Original 2009 Warrants Immediately Prior to Modification Amended 2009 Warrants Immediately After Modification Expected volatility 30.0 % 30.0 % Expected dividend yield 2.5 % 2.5 % Expected term (years) 3.0 6.0 Risk-free interest rate 0.58 % 1.70 % Weighted average fair value (per warrant) $ 1.28 $ 2.49 Total fair value (in thousands) $ 4,226 $ 8,254 Since the Company’s common stock did not trade on any exchange at the time of the modification, the expected volatility is based on the volatility of comparable peer banks. The expected term represents the period of time that the 2009 warrants are expected to be outstanding from the amendment date. The risk-free interest rate is based on the US Treasury yields for the expected term of the instrument. The following table presents the activity during the year ended December 31, 2016 related to the Amended 2009 Warrants: Amended 2009 Warrants Warrants Weighted Average Exercise Price Aggregate Intrinsic Value Weighted Average Remaining Contractual Life (Years) (Dollars in thousands, except per share data) Outstanding at January 1, 2016 3,024,123 $ 26.42 Granted — — Exercised (338,196 ) 25.96 $ 2,821 Forfeited — — Expired — — Outstanding at December 31, 2016 2,685,927 26.48 56,993 2.87 Exercisable at December 31, 2016 1,582,449 25.23 35,564 2.87 Vested at December 31, 2016 2,685,927 26.48 56,993 2.87 Vested and expected to vest at December 31, 2016 2,685,927 26.48 56,993 2.87 As of December 31, 2016 , there were 2,685,927 outstanding 2009 Warrants with an expiration date of November 12, 2019. There is no remaining expense to be recognized from the Amended 2009 Warrants. During 2010, the Company issued warrants to directors and employees to purchase an aggregate of 2,142,000 shares of Class A common stock (the “2010 Warrants”). The 2010 Warrants provided the recipient a right to purchase one share of Class A common stock for an exercise price at December 31, 2012 ranging between $26 and $32 per warrant. All 2010 Warrants were relinquished by the recipients and cancelled (the “Cancellation”) by the Company in 2013. The Company has not recorded any expense in the accompanying consolidated financial statements associated with the 2010 Warrants or the Cancellation of the 2010 Warrants as a Qualified IPO did not occur on or prior to the Cancellation. The holders of the 2010 Warrants received replacement awards in the form of stock options and restricted stock units (the “2013 RSUs”) from the 2013 Incentive Plan. The Company has accounted for this as a modification. Refer to Note 14 “Stock-based Compensation and Other Benefit Plans” for more information and calculation of the fair value modification.

Stock-Based Compensation and Ot

Stock-Based Compensation and Other Benefit Plans	12 Months Ended
	Dec. 31, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Stock-Based Compensation and Other Benefit Plans	STOCK-BASED COMPENSATION AND OTHER BENEFIT PLANS 2009 Equity Incentive Plan In 2009, the Company approved the 2009 Equity Incentive Plan (the “2009 Option Plan”) covering its directors, employees and affiliates. The 2009 Option Plan provided for the grant of options to acquire shares of common stock up to an aggregate of the lesser of 10% of issued common stock or 4.375 million shares of common stock. When the options are exercised, the shares issued upon such exercise will be newly issued shares. On four different dates in 2013, the Company granted an aggregate of 370,499 options to employees with a Three Year Vesting Period and a weighted average exercise price of $19.63 . The options granted to employees expire 10 years from grant date. Also in 2013, the Company granted 70,000 stock options to directors without vesting requirements and a weighted average exercise price of $19.25 . The options granted to directors can be exercised within 10 years from grant date. On three different dates in 2014, the Company granted an aggregate of 605,250 options with a Three Year Vesting Period from the 2009 Option Plan to employees with a weighted average exercise price of $21.99 , the estimated fair value of the Company’s stock on the date of grant, and an aggregate fair value of $4.5 million . The options granted to employees expire 10 years from grant date. Also in 2014, the Company granted 90,000 options from the 2009 Option Plan to directors that vest at a rate of 25% per calendar quarter in 2014. The options have an exercise price of $19.75 , the estimated fair value of the Company’s stock on the date of grant and an aggregate fair value of $0.5 million . The options granted to directors expire 10 years from grant date. In November 2014, the 2009 Option Plan expired on the fifth anniversary of plan’s adoption date. As of December 31, 2014, there were no remaining awards available from the 2009 Option Plan. The following tables present the activity during the year ended December 31, 2016 related to the 2009 Option Plan: 2009 Option Plan Options Weighted Average Exercise Price Aggregate Intrinsic Value Weighted Average Remaining Contractual Life (Years) (Dollars in thousands, except per share data) Outstanding at January 1, 2016 3,707,898 $ 20.67 Granted — — Exercised (549,928 ) 20.78 $ 9,547 Forfeited (49,984 ) 22.34 Expired (751 ) 22.97 Outstanding at December 31, 2016 3,107,235 20.62 84,138 4.69 Exercisable at December 31, 2016 2,937,302 20.55 79,745 4.52 Vested at December 31, 2016 2,937,302 20.55 79,745 4.52 Vested and expected to vest at December 31, 2016 3,107,236 20.62 84,138 4.69 The fair values of the stock options granted for the year ended December 31, 2014 were determined utilizing the Black-Scholes pricing model methodology. No awards were granted from the 2009 Option Plan during the years ended December 31, 2016 or 2015 . A summary of assumptions used to calculate the fair values of the 2009 Option Plan awards is presented below: 2009 Option Plan Years Ended December 31, 2016 2015 2014 Expected volatility — % — % 33.6 - 36.7% Expected dividend yield — % — % 1.3 - 2.5% Expected term (years) — — 5.5 - 6.5 Risk-free interest rate — % — % 2.32 - 2.70% Weighted average grant date fair value $ — $ — $ 7.14 The expected volatility is based on the volatility of comparable peer banks. The expected term represents the period of time that the 2009 Option Plan awards are expected to be outstanding from the date of grant. The risk-free interest rate is based on the US Treasury yields for the expected term of the instrument. A summary of selected data related to stock-based compensation expense follows: 2009 Option Plan Years Ended December 31, 2016 2015 2014 (Dollars in thousands) Stock-based compensation expense $ 1,707 $ 2,239 $ 2,125 Tax benefit realized from stock awards exercised 3,622 1,618 — Fair value of stock-based awards that vested during the year 1,882 2,724 2,319 Amount of cash received from exercise of awards 11,427 8,163 — Total intrinsic value of awards exercised during the year 9,547 4,940 — 2009 Option Plan December 31, 2016 2015 2014 (Dollars in thousands) Unrecognized compensation expense related to stock-based compensation $ 569 $ 2,561 $ 4,949 Weighted-average life over which expense is expected to be recognized (years) 0.78 1.72 2.54 2013 Stock Incentive Plan In 2013, the Company approved the 2013 Stock Incentive Plan (the “2013 Incentive Plan”) covering its executive management, directors, individual consultants and employees. The 2013 Incentive Plan provides that awards may be granted under the plan with respect to an aggregate of 3,000,000 shares of common stock of the Company. Awards may be made under the 2013 Incentive Plan in the form of (a) incentive stock options, (b) options that do not qualify as incentive stock options, (c) stock appreciation rights, (d) restricted stock, (e) restricted stock units and (f) unrestricted stock; provided, that the number of shares of restricted stock, restricted stock units, and shares of unrestricted stock awarded under the Plan shall not exceed 500,000 , in the aggregate. When the options are exercised, the shares issued upon such exercise will be newly issued shares. On August 6, 2014, the Company completed the initial public offering of 7,520,000 shares of Class A common stock for $22.00 per share. This public offering constituted a “Qualified IPO” with respect to the Company’s Option awards (“2013 Plan Options”) and 2013 Stock Incentive Plan Restricted Stock Units (“2013 RSUs”). During the year ended December 31, 2014, the Company recognized $5.5 million in expense resulting from the Plan Options as a “Qualified IPO” transaction was completed. During 2013, all 2010 Warrants were relinquished by the recipients and cancelled by the Company. The holders of the 2010 Warrants received replacement awards in the form of 2013 Plan Options and 2013 RSUs. The Company has accounted for this as a modification and recognized the fair value of the cancelled 2010 Warrants as a reduction to 2013 Incentive Plan expense. The amount related to the change in fair value resulting from the 2010 Warrants at the cancellation date was $1.5 million and was recorded in the consolidated financial statements at the completion of the Qualified IPO. A summary of assumptions used to calculate the fair values of the cancelled 2010 Warrants is presented below: Original 2010 Warrants Immediately Prior to Cancellation Original Expected volatility 30.0 % 30.0 % Expected dividend yield 2.5 % 2.5 % Expected term (years) 3.6 — Risk-free interest rate 1.06 % 1.06 % Weighted average fair value (per warrant) $ 0.70 $ — Total fair value (in thousands) $ 1,499 $ — 2013 Incentive Plan – Stock Options On December 23, 2013, the Company granted 1,500,000 options with immediate vesting and 673,000 options that vest in equal installments over a period of three years . The 2013 Incentive Plan options (the “2013 Plan Options”) granted in 2013 have an exercise price of $19.75 , the estimated fair value of the Company’s stock on the date of grant, and expire on December 23, 2023 . The vested 2013 Plan Options are exercisable with respect to one-third each on February 6, 2015, February 6, 2016 and February 6, 2017. For the year ended December 31, 2014, no awards were granted by the Company from the 2013 Stock Incentive Plan. On two different dates during the year ended December 31, 2015, the Company granted an aggregate of 120,500 options with a Three Year Vesting Period from the 2013 Option Plan to employees with a weighted average exercise price of $27.36 , the estimated fair value of the Company’s stock on the date of grant, and an aggregate fair value of $960 thousand . The options granted to employees expire 10 years from grant date. Also in 2015, the Company granted 129,000 options from the 2013 Option Plan to directors that vest at a rate of 25% per calendar quarter in 2015. The options have an exercise price of $23.97 , the estimated fair value of the Company’s stock on the date of grant and an aggregate fair value of $881 thousand . The options granted to directors expire 10 years from grant date. The following tables present the activity during the year ended December 31, 2016 related to the 2013 Plan Options: 2013 Plan Options Options Weighted Average Exercise Price Aggregate Intrinsic Value Weighted Average Remaining Contractual Life (Years) (Dollars in thousands, except per share data) Outstanding at January 1, 2016 2,367,187 $ 20.37 Granted 80,000 29.98 Exercised (248,760 ) 20.85 $ 3,888 Forfeited (34,169 ) 23.03 Expired — — Outstanding at December 31, 2016 2,164,258 20.63 58,596 7.16 Exercisable at December 31, 2016 1,381,232 20.60 37,427 7.18 Vested at December 31, 2016 1,881,236 20.38 51,402 7.09 Vested and expected to vest at December 31, 2016 2,164,258 20.63 58,596 7.16 The fair value of the 2013 Plan Options granted for the years ended December 31, 2016 and 2015 were determined utilizing the Black-Scholes pricing model methodology. No awards were granted from the 2013 Option Plan during the year ended December 31, 2014. A summary of assumptions used to calculate the fair values of the 2013 Plan Options awards is presented below: 2013 Plan Options Years Ended December 31, 2016 2015 2014 Expected volatility 24.7 % 31.1 % — % Expected dividend yield 1.25 % 1.25 % — % Expected term (years) 6.0 6.2 — Risk-free interest rate 1.37 % 1.63 % — % Weighted average grant date fair value $ 6.57 $ 7.38 $ — The expected volatility is based on the volatility of comparable peer banks. The expected term represents the period of time that the 2013 Plan Option awards are expected to be outstanding from the date of grant. The risk-free interest rate is based on the US Treasury yields for the expected term of the instrument. A summary of selected data related to stock-based compensation expense follows: 2013 Plan Options Years Ended December 31, 2016 2015 2014 (Dollars in thousands) Stock-based compensation expense $ 1,655 $ 2,002 $ 5,463 Tax benefit realized from stock awards exercised 1,380 158 — Grant date fair value of stock-based awards that vested during the year 4,313 1,181 914 Amount of cash received from exercise of option awards 5,186 714 — Total intrinsic value of awards exercised during the year 3,888 465 — 2013 Plan Options December 31, 2016 2015 2014 (Dollars in thousands) Unrecognized compensation expense related to stock-based compensation $ 333 $ 1,633 $ 1,918 Weighted-average life over which expense is expected to be recognized (years) 1.24 1.53 1.98 2013 Incentive Plan – Restricted Stock Units On December 23, 2013, the Company granted 500,000 2013 RSUs (the “2013 RSUs”) to certain executives of the Company with immediate vesting under the 2013 Incentive Plan. The 2013 RSUs constitute the right to receive from the Company an equal number of shares of Class A Common Stock of the Company (the “RSU Shares”) or, in the sole discretion of the 2013 Incentive Plan administrator, a cash payment equal to the value of the RSU Shares on the date that the RSUs are exercised or settled. During September 2014, the Company recognized $9.9 million in expense attributable to the grant date fair value of the 2013 RSUs as a Qualified IPO transaction was completed. The 2013 RSU shares were delivered to the recipients on September 5, 2014 and may not be transferred or sold by the recipients until February 6, 2015. The recipients received 243,499 RSU shares at settlement, which 256,501 shares were withheld to satisfy required income tax withholdings. As of December 31, 2014, there are no remaining shares of restricted stock, restricted stock units, or unrestricted stock awards available for issuance under the 2013 Incentive Plan. The Company has recognized $3.8 million in income tax benefit for the year ended December 31, 2014 related to the 2013 RSUs. 2016 Stock Incentive Plan In 2016, the Company approved the FCB Financial Holdings, Inc. 2016 Stock Incentive Plan (the “2016 Incentive Plan”) covering its executive management, directors, individual consultants and employees. The 2016 Incentive Plan provides that awards may be granted under the plan with respect to an aggregate of 2,000,000 shares of Class A Common Stock of the Company. Awards may be made under the Plan in the form of (a) incentive stock options, (b) options that do not qualify as incentive stock options, (c) stock appreciation rights, (d) restricted stock, (e) restricted stock units and (f) unrestricted stock. Awards under the Plan may also be made in the form of performance awards by making the awards subject to the achievement of performance criteria described in the Plan or other performance criteria. An incentive stock option may be granted only to a person who is an employee of the Company or a parent or subsidiary of the Company on the date of grant. Shares issued pursuant to the Plan may be authorized but unissued Common Stock, authorized and issued Common Stock held in the Company’s treasury or Common Stock acquired by the Company for the purposes of the Plan. 2016 Incentive Plan - Stock Options In August 2016, the Company granted 827,500 options that vest in-full (i.e. cliff vesting) on the 5 -year anniversary of the grant date from the 2016 Incentive Plan to employees with an exercise price of $36.11 , the estimated fair value of the Company's stock on the date of grant and an aggregate fair value of $7.1 million . The options granted to employees expire 10 years from the grant date. The following tables present the activity during the year ended December 31, 2016 related to the 2016 Plan Options: 2016 Plan Options Options Weighted Average Exercise Price Aggregate Intrinsic Value Weighted Average Remaining Contractual Life (Years) (Dollars in thousands, except per share data) Outstanding at January 1, 2016 — $ — Granted 827,500 36.11 Exercised — — $ — Forfeited — — Expired — — Outstanding at December 31, 2016 827,500 36.11 9,591 9.61 Exercisable at December 31, 2016 — — — — Vested at December 31, 2016 — — — — Vested and expected to vest at December 31, 2016 827,500 36.11 9,591 9.61 The fair value of the 2016 Plan Options granted for the year ended December 31, 2016 were determined utilizing the Black-Scholes pricing model methodology. A summary of assumptions used to calculate the fair values of the 2016 Plan Options awards is presented below: 2016 Plan Options Expected volatility 24.0 % Expected dividend yield 1.25 % Expected term (years) 7.5 Risk-free interest rate 1.42 % Weighted average grant date fair value $ 8.62 The expected volatility is based on the volatility of comparable peer banks. The expected term represents the period of time that the 2016 Plan Option awards are expected to be outstanding from the date of grant. The risk-free interest rate is based on the US Treasury yields for the expected term of the instrument. A summary of selected data related to stock-based compensation expense for the year ended December 31, 2016 are as follows: 2016 Plan Options (Dollars in thousands) Stock-based compensation expense $ 570 Unrecognized compensation expense related to stock-based compensation 6,563 Weighted-average life over which expense is expected to be recognized (years) 4.61 2016 Incentive Plan - Restricted Stock Awards On March 29, 2016, the Compensation Committee granted 121,212 restricted shares (the "Award") of Class A Common Stock to certain Executives. Shareholder's approved the Plan at the 2016 Annual Meeting of Stockholders on May 16, 2016 which was determined to be the grand date of the Award. The fair value of the Awards on the grant date was $4.2 million and will be recognized as compensation expense over the requisite vesting period ending December 31, 2018. The Company recognized $1.4 million of compensation expense during the year ended December 31, 2016. Florida Community Bank, N.A. 401(k) Plan The Company sponsors the Florida Community Bank, N.A. 401(k) Plan, a tax-qualified, deferred compensation plan (the “401(k) Plan”). Under the terms of the 401(k) Plan eligible employees may contribute a portion of compensation not exceeding the limits set by law. Employees are eligible to participate in the plan after the first month following 90 days of service. Effective January 1, 2015, the 401(k) Plan allows a matching employer contribution equal to 100% of elective deferrals that do not exceed 3% of compensation. Prior to 2015, the 401(k) Plan allowed a matching employer contribution equal to 100% of elective deferrals that do not exceed 2% of compensation. Matching contributions are fully vested after three years of service. Total 401(k) matching employer contribution expense totaled $978 thousand , $868 thousand and $404 thousand for the years ended December 31, 2016, 2015 and 2014, respectively. Executive Incentive Plan During the year ended December 31, 2015 , the Compensation Committee of the Board of Directors of the Company approved the adoption of the FCB Financial Holdings, Inc. Executive Incentive Plan (the “EIP”). The EIP provides for Annual Incentive Awards and Long-Term Incentive Awards, both of which are subject to achievement of specified performance goals. Annual Incentive Awards- The Compensation Committee approved Annual Awards under the EIP in respect to the Company’s Core Pre-Tax Profits for fiscal year 2015. The Company recognized $6.0 million and $5.1 million of compensation expense for the years ended December 31, 2016 and 2015 , respectively. Long-Term Incentive Awards- The Compensation Committee granted a Long-Term Award of cash phantom units (“CPUs”) under the Long-Term Incentive component of the EIP which covers a three -year period ending December 31, 2017 (the “Performance Period”). The value of the award is determined by the Company’s common share price at the end of the performance period. Based on the estimated value of the award, the Company recognized $377 thousand and $1.1 million of compensation expense for the years ended December 31, 2016 and 2015 , respectively. Management Long-Term Incentive Plan During the year ended December 31, 2015, the Compensation Committee of the Board of Directors of the Company approved the FCB Financial Holdings, Inc. Management Long-Term Incentive Plan (“MLTIP”) for certain employees of the Company. The MLTIP provides participants the opportunity to receive a cash award that may be adjusted for the Company’s performance over a three year period ending on December 31, 2018. The estimated award amount will be recognized over the three year service period beginning on January 1, 2016. The Company recognized $1.1 million in compensation expense related to this plan for the year ended December 31, 2016 .

Basic and Diluted Earnings Per

Basic and Diluted Earnings Per Share	12 Months Ended
	Dec. 31, 2016
Earnings Per Share [Abstract]
Basic and Diluted Earnings Per Share	BASIC AND DILUTED EARNINGS PER SHARE Basic EPS is calculated by dividing net income available to common stockholders by the weighted average number of common shares outstanding during the period. Diluted EPS reflects the effect of common stock equivalents, including stock options and warrants, calculated using the treasury stock method. Common stock equivalents are excluded from the computation of diluted EPS in periods in which the effect is anti-dilutive. The following table presents the computation of basic and diluted EPS: Years Ended December 31, 2016 2015 2014 (Dollars in thousands, except share and per share data) Net income available to common stockholders $ 99,916 $ 53,391 $ 22,372 Weighted average number of common shares—basic 40,716,588 41,300,979 38,054,158 Effect of dilutive securities: Employee stock-based compensation awards and warrants 2,508,576 1,992,628 204,158 Weighted average number of common shares—diluted 43,225,164 43,293,607 38,258,316 Basic earnings per share $ 2.45 $ 1.29 $ 0.59 Diluted earnings per share $ 2.31 $ 1.23 $ 0.58 Weighted average anti-dilutive warrants, stock options and RSUs 330,095 91,923 7,822,029

Income Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2016
Income Tax Disclosure [Abstract]
Income Taxes	INCOME TAXES The components of the expense and benefit for income taxes for the periods presented are as follows: Years Ended December 31, 2016 2015 2014 (Dollars in thousands) Current income tax expense: Federal $ 39,528 $ 23,610 $ 18,329 State 6,013 3,441 2,921 Total current income tax expense 45,541 27,051 21,250 Deferred income tax expense (benefit): Federal 9,161 (19,157 ) (6,332 ) State 1,203 (2,238 ) (961 ) Total deferred income tax expense (benefit) 10,364 (21,395 ) (7,293 ) Total income tax expense (benefit) $ 55,905 $ 5,656 $ 13,957 A reconciliation of the expected income tax expense or benefit at the statutory federal income tax rate of 35% to the Company’s actual income tax expense or benefit and effective tax rate for the periods presented is as follows: Years Ended December 31, 2016 2015 2014 Amount % Amount % Amount % (Dollars in thousands) Tax expense (benefit) at federal income tax rate $ 54,537 35.00 % $ 20,667 35.00 % $ 12,747 35.00 % Increase (decrease) resulting from: Bank-owned life insurance (1,817 ) (1.17 )% (1,614 ) (2.73 )% (2,019 ) (5.56 )% Stock compensation 234 0.15 % 729 1.23 % 2,870 7.90 % Dividends received deduction (1,919 ) (1.23 )% (2,104 ) (3.56 )% (1,168 ) (3.21 )% GFB NUBIL Revaluation — — % (4,954 ) (8.39 )% — — % NOL Valuation Allowance — — % (9,061 ) (15.35 )% — — % State tax, net of federal benefit 4,777 3.07 % 1,619 2.74 % 1,238 3.41 % Other 93 0.06 % 374 0.62 % 289 0.79 % Total $ 55,905 35.88 % $ 5,656 9.56 % $ 13,957 38.33 % Deferred income tax assets and liabilities reflect the tax effect of estimated temporary differences between the carrying amount of assets and liabilities for financial reporting purposes and the amounts used for the same items for income tax reporting purposes. The significant components of the net deferred tax assets and liabilities for the periods presented are as follows: December 31, 2016 2015 (Dollars in thousands) Deferred tax assets: Excess tax basis over carrying value of assets: Other real estate owned $ 12,991 $ 15,740 Total 12,991 15,740 Excess carrying value over tax basis of liabilities: Deposits — 19 Repo Loans 324 1,330 Total 324 1,349 Net operating loss carry forward: Federal 9,287 9,790 State 921 971 Total 10,208 10,761 Amortization 21,555 25,052 Depreciation 660 848 Unrealized losses on securities available for sale 2,509 5,930 Allowance for loan losses 12,807 9,468 Non-qualified stock options 7,695 6,458 Other 2,696 2,794 Gross deferred tax assets 71,445 78,400 Valuation allowance — — Gross deferred tax assets, net of valuation allowance 71,445 78,400 Deferred tax liabilities: Loans (7,542 ) (966 ) Restricted securities (2,260 ) (2,257 ) Other (252 ) (1 ) Gross deferred tax liabilities (10,054 ) (3,224 ) Deferred tax assets (liabilities), net $ 61,391 $ 75,176 At December 31, 2016 , the Company had deferred tax assets for federal and state net operating losses of $9.3 million and $921 thousand , respectively. The federal and state net operating loss carryforwards are attributable to the acquisition of Great Florida Bank and are subject to an annual limitation. These deferred tax assets for net operating losses will expire in years 2028 through 2034 . The Company records a valuation allowance to reduce its deferred tax assets if, based on the weight of available evidence, both positive and negative, for each respective tax jurisdiction, it is more likely than not that some portion or all of such deferred tax assets will not be realized. Management believes the Company will realize the benefits from certain federal and state net operating loss carryforwards and as such, in 2015, reversed the valuation allowance of $9.1 million previously provided on the deferred tax assets for federal and state net operating loss carryforwards. The reversal of the valuation allowance on the deferred tax assets was recognized as a reduction of income tax expense. The Company is subject to U.S. federal income tax as well as state income tax for Florida and New York. The Company’s federal income tax return for 2013 is currently subject to examination. The Company had no uncertain tax positions at December 31, 2016, 2015 or 2014. The Company’s policy is to classify interest and penalties associated with income taxes within other expenses. The Company did not incur interest or penalties associated with income taxes at December 31, 2016, 2015 or 2014.

Commitments and Contingencies

Commitments and Contingencies	12 Months Ended
	Dec. 31, 2016
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	COMMITMENTS AND CONTINGENCIES The Company issues off-balance sheet financial instruments in connection with its lending activities and to meet the financing needs of its customers. These financial instruments include commitments to fund loans and lines of credit as well as commercial and standby letters of credit. These commitments expose the Company to varying degrees of credit and market risk which are essentially the same as those involved in extending loans to customers. The Company follows the same credit policies in making commitments as it does for instruments recorded on the Company’s consolidated balance sheet. Collateral is obtained based on management’s assessment of the customer’s credit risk. The Company’s exposure to credit loss is represented by the contractual amount of these commitments. As of December 31, 2016 and 2015 , the Company’s reserve for unfunded commitments totaled $1.6 million and $1.5 million , respectively. Fees collected on off-balance sheet financial instruments represent the fair value of those commitments and are deferred and amortized over their term. Financial Instruments Commitments Unfunded commitments are as follows: December 31, 2016 2015 (Dollars in thousands) Commitments to fund loans $ 724,380 $ 578,730 Unused lines of credit 410,068 358,601 Commercial and standby letters of credit 26,200 14,410 Total $ 1,160,648 $ 951,741 Commitments to fund loans: Commitments to fund loans are agreements to lend funds to customers as long as there is no violation of any condition established in the contract. To accommodate the financial needs of customers, the Company makes commitments under various terms to lend funds to consumers and businesses. Commitments to fund loans generally have fixed expiration dates or other termination clauses and may require payment of a fee. Many of these commitments are expected to expire without being funded and, therefore, the total commitment amounts do not necessarily represent future liquidity requirements. The Company evaluates each customer’s creditworthiness on a case-by-case basis. The amount of collateral required in connection with a commitment to fund is based on management’s credit evaluation of the counterparty. Unused lines of credit: Unfunded commitments under lines of credit include commercial, commercial real estate, home equity and consumer lines of credit to existing customers. Some of these commitments may mature without being fully funded. Commercial and standby letters of credit: Letters of credit are conditional commitments issued by the Company to guarantee the performance of a customer to a third party. Letters of credit are primarily issued to support trade transactions or guarantee arrangements. The credit risk involved in issuing letters of credit is essentially the same as that involved in extending loan facilities to customers. The Company generally holds collateral supporting those commitments if deemed necessary. Other Commitments and Contingencies Legal Proceedings The Company, from time to time, is involved as plaintiff or defendant in various legal actions arising in the normal course of business. While the ultimate outcome of any such proceedings cannot be predicted with certainty, it is the opinion of management, based upon advice of legal counsel, that no proceedings exist, either individually or in the aggregate, which, if determined adversely to the Company, would have a material effect on the Company’s consolidated balance sheet, results of operations or cash flows.

Parent Company Financial Statem

Parent Company Financial Statements	12 Months Ended
	Dec. 31, 2016
Parent company
Parent Company Financial Statements	PARENT COMPANY FINANCIAL STATEMENTS Condensed Balance Sheets of FCB Financial Holdings, Inc. (Parent company only) for the periods presented are as follows: PARENT COMPANY CONDENSED BALANCE SHEETS December 31, 2016 2015 (Dollars in thousands) Assets: Cash and due from banks $ 18,126 $ 9,112 Available for sale securities 129,970 167,524 Investment in bank subsidiary 885,296 773,508 Other assets 9,874 12,980 Total assets $ 1,043,266 $ 963,124 Liabilities and stockholders’ equity: Total liabilities 61,182 87,432 Stockholders’ equity 982,084 875,692 Total liabilities and stockholders’ equity $ 1,043,266 $ 963,124 Condensed Statements of Income of FCB Financial Holdings, Inc. (Parent company only) for the periods presented are as follows: PARENT COMPANY CONDENSED STATEMENTS OF INCOME Years Ended December 31, 2016 2015 2014 (Dollars in thousands) Income: Interest and dividends on investment securities $ 7,831 $ 8,602 $ 4,838 Gain (loss) on investment securities (586 ) 688 (197 ) Total income 7,245 9,290 4,641 Expense: Interest on borrowings 884 551 — Stock-based compensation expense 577 829 13,205 Professional services 707 950 1,243 Directors fees 800 598 3,700 Warrant expense — — 4,122 Insurance expense 1,034 1,505 1,451 Other noninterest expense 7,261 6,500 3,715 Total expense 11,263 10,933 27,436 Income (loss) before income taxes and equity in undistributed income of subsidiaries (4,018 ) (1,643 ) (22,795 ) Income tax expense (benefit) (3,671 ) (2,901 ) (8,836 ) Income (loss) before equity in undistributed income of subsidiaries (347 ) 1,258 (13,959 ) Equity in income of subsidiary 100,263 52,133 36,331 Net income $ 99,916 $ 53,391 $ 22,372 Condensed Statements of Comprehensive Income of FCB Financial Holdings, Inc. (Parent company only) for periods presented are as follows: PARENT COMPANY CONDENSED STATEMENTS OF COMPREHENSIVE INCOME Years Ended December 31, 2016 2015 2014 (Dollars in thousands) Net income $ 99,916 $ 53,391 $ 22,372 Other comprehensive income (loss): Unrealized net holding gains (losses) on investment securities available for sale, net of taxes of $(620), $(227), and $(1,666), respectively 988 362 2,653 Reclassification adjustment for (gains) losses on investment securities available for sale included in net income, net of taxes of $63, $384, and $(443), respectively (100 ) (612 ) 705 Total other comprehensive income (loss) 888 (250 ) 3,358 Total comprehensive income $ 100,804 $ 53,141 $ 25,730 Condensed Statements of Cash Flows of FCB Financial Holdings, Inc. (Parent company only) for periods presented are as follows: PARENT COMPANY CONDENSED STATEMENTS OF CASH FLOWS Years Ended December 31, 2016 2015 2014 (Dollars in thousands) Cash flows from operating activities: Net income $ 99,916 $ 53,391 $ 22,372 Adjustments to reconcile net income to net cash used in operating activities: Equity in earnings of subsidiaries (100,263 ) (52,133 ) (36,331 ) (Gain) loss on investment securities 586 (688 ) 197 Stock-based compensation and warrant expense 577 829 17,326 Depreciation of premises and equipment — 1 2 Deferred tax expense (735 ) 1,272 — Net change in operating assets and liabilities: (Increase)/decrease in due from subsidiaries 4,478 8,476 (8,026 ) Increase/(decrease) in due to subsidiaries 1,745 (1,979 ) 1,895 Net change in other assets 1,382 1,052 (558 ) Net change in other liabilities (4,365 ) (2,806 ) (30 ) Net cash provided by (used in) operating activities 3,321 7,415 (3,153 ) Cash flows from investing activities: Purchases of investment securities available for sale (67,934 ) (169,728 ) (149,794 ) Sales of investment securities available for sale 106,347 110,649 128,559 Payments and maturities of investment securities — 2,005 — Capital contribution — (35,000 ) (172,000 ) Net cash provided by (used in) investing activities 38,413 (92,074 ) (193,235 ) Cash flows from financing activities: Proceeds from capital raise, net — — 104,475 Deferred costs from capital raise — — (97 ) Deferred placement fee — — (10,000 ) Settlement of RSU shares — — (5,688 ) Repurchase common stock (23,738 ) (34,884 ) — Exercise of stock options 17,042 8,793 — Excess tax benefit from share-based payments 2,110 2,048 — Net change in repurchase agreements (28,134 ) 87,254 — Net cash provided by (used in) financing activities (32,720 ) 63,211 88,690 Net Change in Cash 9,014 (21,448 ) (107,698 ) Cash at Beginning of Period 9,112 30,560 138,258 Cash at End of Period $ 18,126 $ 9,112 $ 30,560

Fair Value Measurements

Fair Value Measurements	12 Months Ended
	Dec. 31, 2016
Fair Value Disclosures [Abstract]
Fair Value Measurements	FAIR VALUE MEASUREMENTS When determining the fair value measurements for assets and liabilities and the related fair value hierarchy, the Company considers the principal or most advantageous market in which it would transact and the assumptions that market participants would use when pricing the asset or liability. When possible, the Company looks to active and observable markets to price identical assets or liabilities. When identical assets and liabilities are not traded in active markets, the Company looks to market observable data for similar assets and liabilities. It is the Company’s policy to maximize the use of observable inputs, minimize the use of unobservable inputs and use unobservable inputs to measure fair value to the extent that observable inputs are not available. The need to use unobservable inputs generally results from the lack of market liquidity, resulting in diminished observability of both actual trades and assumptions that would otherwise be available to value these instruments, or the value of the underlying collateral is not market observable. Although third party price indications may be available for an asset or liability, limited trading activity would make it difficult to support the observability of these quotations. Financial Instruments Carried at Fair Value on a Recurring Basis The following is a description of the valuation methodologies used for financial instruments measured at fair value on a recurring basis, as well as the general classification of each instrument under the valuation hierarchy. Investment Securities—Investment securities available for sale are carried at fair value on a recurring basis. When available, fair value is based on quoted prices for the identical security in an active market and as such, would be classified as Level 1. If quoted market prices are not available, fair values are estimated using quoted prices of securities with similar characteristics, discounted cash flows or matrix pricing models. Investment securities available for sale for which Level 1 valuations are not available are classified as Level 2 if the valuation incorporates primarily observable inputs. Level 2 securities include U.S. Government agencies and sponsored enterprises obligations and agency mortgage-backed securities; state and municipal obligations; asset-backed securities; and corporate debt and other securities. Pricing of these securities is generally spread driven. Observable inputs that may impact the valuation of these securities include benchmark yield curves, credit spreads, reported trades, dealer quotes, bids, issuer spreads, current rating, historical constant prepayment rates, historical voluntary prepayment rates, structural and waterfall features of individual securities, published collateral data, and for certain securities, historical constant default rates and default severities. Interest Rate Derivatives—Interest rate derivatives are reported at estimated fair value utilizing Level 2 inputs and are included in other assets and other liabilities and consist of interest rate swaps where there is no significant deterioration in the counterparties (loan customers) credit risk since origination of the interest rate swap. The Company values its interest rate swap positions using market prices provided by a third party which uses primarily observable market inputs. Interest rate derivatives are further described in Note 8 “Derivatives.” For purposes of potential valuation adjustments to our derivative positions, the Company evaluates the credit risk of its counterparties as well as our own credit risk. Accordingly, the Company has considered factors such as the likelihood of default, expected loss given default, net exposures and remaining contractual life, among other things, in determining if any estimated fair value adjustments related to credit risk are required. The Company reviews counterparty exposure quarterly, and when necessary, appropriate adjustments are made to reflect the exposure. For the years ended December 31, 2016 , 2015 or 2014 , the Company has not realized any losses due to a counterparty’s inability to pay any net uncollateralized position. As of December 31, 2016 , there were no interest rate derivatives classified as Level 3. Contingent consideration issued to the FDIC—In conjunction with the 2010 and 2011 acquisitions, the Bank issued contingent consideration to the FDIC in the form of EAAs. The estimated fair value of the EAAs were derived from an estimation of the future fair value of the Company’s stock and a range of potential payment liabilities was determined in accordance with the terms of each agreement. Management assigned a probability to each potential payment liability based on its judgment about the likelihood of the event occurring. This expected value was the basis for estimating the fair value of the contingent consideration. As of December 31, 2016 , the Company had no remaining EAAs, as the EAAs reached final settlement with the FDIC on September 29, 2014. Clawback liability—The fair value of the FDIC clawback liability was estimated using a discounted cash flow technique based on projected cash flows related to the resolution of Covered Assets and a discount rate using a risk free rate, plus a premium that took into account the Company’s credit risk, resulting in Level 3 classification. On March 4, 2015, the Bank entered into an agreement with the FDIC to terminate all loss sharing agreements which were entered into in 2010 and 2011 in conjunction with the Bank’s acquisition of substantially all of the assets (“covered assets”) and assumption of substantially all of the liabilities of six failed banks in FDIC-assisted acquisitions. Under the early termination, all rights and obligations of the Bank and the FDIC under the loss share agreements, including the clawback liability, have been eliminated. The following table presents the assets and liabilities measured at fair value on a recurring basis: December 31, 2016 Level 1 Level 2 Level 3 Total (Dollars in thousands) Assets: U.S. Government agencies and sponsored enterprises obligations $ — $ 16,314 $ — $ 16,314 U.S. Government agencies and sponsored enterprises mortgage-backed securities — 558,446 — 558,446 State and municipal obligations — 27,679 — 27,679 Asset-backed securities — 577,823 — 577,823 Corporate bonds and other debt securities 53,517 505,777 — 559,294 Preferred stocks and other equity securities 6,908 129,970 — 136,878 Derivative assets—Interest rate contracts — 15,268 — 15,268 Total $ 60,425 $ 1,831,277 $ — $ 1,891,702 Liabilities: Derivative liabilities—Interest rate contracts $ — $ 15,268 $ — $ 15,268 Total $ — $ 15,268 $ — $ 15,268 December 31, 2015 Level 1 Level 2 Level 3 Total (Dollars in thousands) Assets: U.S. Government agencies and sponsored enterprises obligations $ — $ 20,888 $ — $ 20,888 U.S. Government agencies and sponsored enterprises mortgage-backed securities — 393,115 — 393,115 State and municipal obligations — 2,215 — 2,215 Asset-backed securities — 493,934 — 493,934 Corporate bonds and other debt securities — 444,895 — 444,895 Preferred stocks and other equity securities 2,052 167,523 — 169,575 Derivative assets—Interest rate contracts — 21,553 — 21,553 Total $ 2,052 $ 1,544,123 $ — $ 1,546,175 Liabilities: Derivative liabilities—Interest rate contracts $ — $ 21,553 $ — $ 21,553 Total $ — $ 21,553 $ — $ 21,553 The Company's policy is to recognize transfers into or out of a level of the fair value hierarchy as of the end of the reporting period. There were $53.5 million of financial assets transfered from level 2 to level 1 of the fair value hierarchy during the year ended December 31, 2016 . There were no transfers between levels of the fair value hierarchy during the year ended December 31, 2015 . The following tables reconcile changes in the fair value of liabilities measured at fair value on a recurring basis and classified in level 3 of the fair value hierarchy for the periods presented: Years Ended December 31, 2016 2015 2014 Clawback Liability EAAs Clawback Liability EAAs Clawback Liability EAAs (Dollars in thousands) Balance at beginnning of period $ — $ — $ 13,846 $ — $ 11,753 $ 1,114 Losses (gains) included in other noninterest expenses — — — — 2,093 1,466 Termination of FDIC loss sharing agreements — — (13,846 ) — — — Final EAA settlement on FCB — — — — — (1,458 ) Final EAA settlement on PAB — — — — — (1,122 ) Balance at end of period $ — $ — $ — $ — $ 13,846 $ — The inputs used to determine the estimated fair value of loans include market conditions, loan term, underlying collateral characteristics and discount rates. The inputs used to determine fair value of OREO include market conditions, estimated marketing period or holding period, underlying collateral characteristics and discount rates. For the years ended December 31, 2016 and 2015 , there was not a change in the methods or significant assumptions used to estimate fair value. Financial Instruments Measured at Fair Value on a Non-Recurring Basis The following is a description of the methodologies used to estimate the fair values of assets and liabilities measured at fair value on a non-recurring basis, and the level within the fair value hierarchy in which those measurements are typically classified. Impaired loans and OREO—The carrying amount of collateral dependent impaired loans is typically based on the fair value of the underlying collateral, which may be real estate or other business assets, less estimated costs to sell. The carrying value of OREO is initially measured based on the fair value, less estimated cost to sell, of the real estate acquired in foreclosure and subsequently adjusted to the lower of cost or estimated fair value, less estimated cost to sell. Fair values of real estate collateral are typically based on real estate appraisals which utilize market and income valuation techniques incorporating both observable and unobservable inputs. When current appraisals are not available, the Company may use brokers’ price opinions, home price indices, or other available information about changes in real estate market conditions to adjust the latest appraised value available. These adjustments to appraised values may be subjective and involve significant management judgment. The fair value of collateral consisting of other business assets is generally based on appraisals that use market approaches to valuation, incorporating primarily unobservable inputs. Fair value measurements related to collateral dependent impaired loans and OREO are classified within level 3 of the fair value hierarchy. The following table shows significant unobservable inputs used in the non-recurring fair value measurement of level 3 assets and liabilities: Level 3 Assets: December 31, 2016 December 31, 2015 Valuation Technique Unobservable Inputs Range (Weighted Average) (Dollars in thousands) Impaired Loans $ 8,878 $ 9,582 Third party appraisals and discounted cash flows Collateral discounts and discount rates 0% - 100% (9.9%) Other real estate owned 19,228 39,340 Third party appraisals Collateral discounts and estimated cost to sell 10 % The following table provides information about certain assets measured at fair value on a non-recurring basis: Years Ended December 31, 2016 2015 2014 (Dollars in thousands) Negative valuation adjustments: Impaired loans $ 700 $ 1,071 $ 174 Foreclosed real estate 1,219 674 1,829 Impairment charges resulting from the non-recurring changes in fair value of underlying collateral of impaired loans are included in the provision for loan losses in the consolidated statement of income. Impairment charges resulting from the non-recurring changes in fair value of OREO are included in other real estate and acquired assets resolution expenses in the consolidated statement of income. The carrying amounts and estimated fair values, as well as the level within the fair value hierarchy, of the Company’s financial instruments are as follows: December 31, 2016 Carrying Value Fair Value Level 1 Level 2 Level 3 (Dollars in thousands) Financial Assets: Cash and cash equivalents $ 83,876 $ 83,876 $ 83,876 $ — $ — Available for sale securities 1,876,434 1,876,434 60,425 1,816,009 — FHLB and other bank stock 51,656 51,656 — 51,656 — Loans, net 6,596,997 6,556,914 — — 6,556,914 Loans held for sale 20,220 20,220 — 20,220 — Bank-owned life insurance 198,438 198,438 — 198,438 — Derivative assets—Interest rate contracts 15,268 15,268 — 15,268 — Financial Liabilities: Deposits $ 7,305,671 $ 7,306,148 $ — $ 7,306,148 $ — Advances from the FHLB and other borrowings 751,103 745,855 — 745,855 — Derivative liabilities—Interest rate contracts 15,268 15,268 — 15,268 — December 31, 2015 Carrying Value Fair Value Level 1 Level 2 Level 3 (Dollars in thousands) Financial Assets: Cash and cash equivalents $ 102,460 $ 102,460 $ 102,460 $ — $ — Available for sale securities 1,524,622 1,524,622 2,052 1,522,570 — FHLB and other bank stock 59,477 59,477 — 59,477 — Loans, net 5,164,061 5,207,971 — — 5,207,971 Loans held for sale 2,514 2,514 — 2,514 — Bank-owned life insurance 168,246 168,246 — 168,246 — Derivative assets—Interest rate contracts 21,553 21,553 — 21,553 — Financial Liabilities: Deposits $ 5,430,638 $ 5,430,501 $ — $ 5,430,501 $ — Advances from the FHLB and other borrowings 983,183 981,997 — 981,997 — Derivative liabilities—Interest rate contracts 21,553 21,553 — 21,553 — Certain financial instruments are carried at amounts that approximate fair value due to their short-term nature and generally negligible credit risk. Financial instruments for which fair value approximates the carrying amount at December 31, 2016 and 2015 , include cash and cash equivalents. The following methods and assumptions were used to estimate the fair value of each class of financial instruments. Estimates may differ from actual exit value as defined by ASC 820. FHLB and Other Bank Stock: FHLB and other bank stock can be liquidated only by redemption by the issuer, as there is no market for these securities. These securities are carried at par, which has historically represented the redemption price and is therefore considered to approximate fair value. Loans: Fair values for loans are based on a discounted cash flow methodology that considers various factors, including the type of loan and related collateral, classification status, fixed or variable interest rate, term of loan, whether or not the loan was amortizing and current discount rates. Loans are grouped together according to similar characteristics and are treated in the aggregate when applying various valuation techniques. The discount rates used for loans are based on current market rates for new originations of comparable credit risk and include adjustments for liquidity concerns. The ALL is considered a reasonable estimate of the required adjustment to fair value to reflect the impact of credit risk. Loans Held for Sale: Fair values of mortgage loans held for sale are based on commitments on hand from investors or prevailing market prices. Bank-owned Life Insurance: The Company holds life insurance policies on certain officers. The carrying value of these policies approximates fair value as it is based on the cash surrender value adjusted for other charges or amounts due that are probable at settlement. Deposits: The fair value of demand deposits, savings accounts and money market deposits is the amount payable on demand at the reporting date. The fair value of fixed-maturity certificates of deposit is estimated using discounted cash flow analysis and using the rates currently offered for deposits of similar remaining maturities. Advances from the FHLB and Other Borrowings: The fair value of advances from the FHLB and other borrowings are estimated by discounting the future cash flows using the current rate at which similar borrowings with similar remaining maturities could be obtained. EAAs: The estimated fair value of EAAs are derived from an estimation of the future fair value of the Company’s stock and a range of potential payment liabilities are determined in accordance with the terms of each agreement. As of December 31, 2016 , the Company had no remaining EAAs, as the EAAs reached final settlement with the FDIC on September 29, 2014.

Quarterly Financial Data (Unaud

Quarterly Financial Data (Unaudited)	12 Months Ended
	Dec. 31, 2016
Quarterly Financial Information Disclosure [Abstract]
Quarterly Financial Data (Unaudited)	QUARTERLY FINANCIAL DATA (UNAUDITED) The summary quarterly financial information set forth below for each of the last eight quarters has been derived from the Company’s unaudited interim consolidated financial statements and other financial information. The summary historical quarterly financial information includes all adjustments consisting of normal recurring accruals that the Company considers necessary for a fair presentation of the financial position and the results of operations for these periods. The information below is only a summary and should be read in conjunction with “Management’s Discussion and Analysis of Financial Condition and Results of Operations” and the consolidated historical financial statements and the related notes thereto included in this Form 10-K filing. Quarters Ended December 31, 2016 Q4 Q3 Q2 Q1 (Dollars in thousands, except per share data) Selected Income Statement data: Interest income $ 85,580 $ 80,800 $ 77,208 $ 75,728 Interest expense 14,514 13,522 12,278 11,286 Net interest income 71,066 67,278 64,930 64,442 Provision for loan losses 2,249 1,990 1,976 1,440 Net interest income after provision for loan losses 68,817 65,288 62,954 63,002 Noninterest income 7,919 8,142 8,222 5,434 Noninterest expense 33,646 33,036 33,975 33,300 Income (loss) before income tax expense (benefit) 43,090 40,394 37,201 35,136 Income tax expense (benefit) 15,194 14,330 13,697 12,684 Net income (loss) $ 27,896 $ 26,064 $ 23,504 $ 22,452 Earnings (loss) per share: Basic $ 0.68 $ 0.64 $ 0.58 $ 0.55 Diluted $ 0.64 $ 0.60 $ 0.55 $ 0.52 Quarters Ended December 31, 2015 Q4 Q3 Q2 Q1 (Dollars in thousands, except per share data) Selected Income Statement data: Interest income $ 71,157 $ 65,023 $ 57,411 $ 55,449 Interest expense 9,188 8,254 7,237 6,565 Net interest income 61,969 56,769 50,174 48,884 Provision for loan losses 2,329 675 2,470 1,349 Net interest income after provision for loan losses 59,640 56,094 47,704 47,535 Noninterest income 7,543 7,072 14,152 (54,089 ) Noninterest expense 33,201 30,706 32,047 30,650 Income (loss) before income tax expense (benefit) 33,982 32,460 29,809 (37,204 ) Income tax expense (benefit) 4,233 11,320 10,433 (20,330 ) Net income (loss) $ 29,749 $ 21,140 $ 19,376 $ (16,874 ) Earnings (loss) per share: Basic $ 0.73 $ 0.51 $ 0.47 $ (0.41 ) Diluted $ 0.68 $ 0.48 $ 0.45 $ (0.41 )

Summary of Significant Accoun29

Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2016
Accounting Policies [Abstract]
Nature of Operations	Nature of Operations FCB Financial Holdings, Inc. (the “Company”), formerly known as Bond Street Holdings, Inc., is a national bank holding company with one wholly-owned national bank subsidiary, Florida Community Bank, N.A. (“Florida Community Bank” or the “Bank”), headquartered in Weston, Florida, offering a comprehensive range of traditional banking products and services to individual and corporate customers through 46 banking centers located in Florida at December 31, 2016 .
Principles of Consolidation	Principles of Consolidation The consolidated financial statements include the accounts of the Company, its wholly-owned subsidiary, the Bank, and the Bank’s subsidiaries, which consist of a group of real estate holding companies. Intercompany transactions and balances have been eliminated in consolidation.
Use of Estimates	Use of Estimates The Company’s financial reporting and accounting policies conform to U.S. GAAP. The preparation of financial statements in conformity with U.S. 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 consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Material estimates subject to significant change include the allowance for loan losses, valuation of and accounting for acquired loans, the carrying value of OREO, the fair value of financial instruments, the valuation of goodwill and other intangible assets, acquisition-related fair value computations, stock-based compensation and deferred taxes.
Business Combinations	Business combinations The Company accounts for transactions that meet the definition of a purchase business combination by recording the assets acquired and liabilities assumed at their fair value upon acquisition. The operations of the acquisitions are included in the consolidated financial statements from the date of acquisition. Intangible assets, indemnification contracts and contingent consideration are identified and recognized individually. If the fair value of the assets acquired exceeds the purchase price plus the fair value of the liabilities assumed, a bargain purchase gain is recognized. Conversely, if the purchase price plus the fair value of the liabilities assumed exceeds the fair value of the assets acquired, goodwill is recognized. The Company’s assumptions utilized to determine the fair value of assets acquired and liabilities assumed conform to market conditions at the date of acquisition. The provisional amounts recorded are updated if better information is obtained about the initial assumptions used to determine fair value or if new information is obtained regarding the facts and circumstances that existed at the date of acquisition. The provisional amounts may be adjusted through the completion of the measurement period, which does not exceed one year from the date of acquisition.
Fair Value Measurement	Fair Value Measurement The Company uses estimates of fair value in applying various accounting standards for its consolidated financial statements on either a recurring or non-recurring basis. Fair value is defined as the price to sell an asset or transfer a liability in an orderly transaction between willing and able market participants. The Company groups its assets and liabilities measured at fair value in three hierarchy levels, based on the observability and transparency of the inputs. These levels are as follows: Level 1—Unadjusted quoted prices in active markets that are accessible at the measurement date for identical assets or liabilities; Level 2—Observable inputs other than level 1 inputs, including quoted prices for similar assets and liabilities, quoted prices for identical assets and liabilities in less active markets and other inputs that can be corroborated by observable market data; Level 3—Unobservable inputs supported by limited or no market activity or data and inputs requiring significant management judgment or estimation; valuation techniques utilizing level 3 inputs include option pricing models, discounted cash flow models and similar techniques. It is the Company’s policy to maximize the use of observable inputs and minimize the use of unobservable inputs in estimating fair value. Unobservable inputs are utilized in determining fair value estimates only to the extent that observable inputs are not available. The need to use unobservable inputs generally results from a lack of market liquidity and trading volume. Transfers between levels of fair value hierarchy are recorded at the end of the reporting period. Accounting Standards Codification (“ASC”) Topic 825, Financial Instruments, allows the Company an irrevocable option for measurement of eligible financial assets or financial liabilities at fair value on an instrument by instrument basis (the fair value option). An election may be made at the time an eligible financial asset, financial liability or firm commitment is recognized or when certain specified reconsideration events occur. The Company has not elected the fair value option for any eligible financial instrument as of December 31, 2016 or 2015 .
Transfers of Financial Assets	Transfers of Financial Assets Transfers of financial assets are accounted for as sales, when control over the assets has been surrendered. A gain or loss is recognized in earnings upon completion of the sale based on the difference between the sales proceeds and the carrying value of the assets. Control over the transferred assets is deemed to have been surrendered when the assets have been isolated from the Company, the transferee obtains the right (free of conditions that constrain it from taking advantage of that right) to pledge or exchange the transferred assets and the Company does not maintain effective control over the transferred assets through an agreement to repurchase them before their maturity.
Cash and Cash Equivalents/ Restrictions on Cash	Cash and Cash Equivalents Cash and cash equivalents include cash and due from banks, interest-bearing deposits with banks, Federal funds sold and securities purchased under resale agreements or similar arrangements. Cash and cash equivalents have original maturities of three months or less . Accordingly, the carrying amount of such instruments is considered a reasonable estimate of fair value. Restrictions on Cash The Bank is required to maintain reserve balances with the FRB. Such reserve requirements are based on a percentage of deposit liabilities and may be satisfied by cash on hand or on deposit. Because the amount of cash on hand exceeded the requirement, there was no reserve with the FRB as of December 31, 2016 .
Investment Securities	Investment Securities The Company determines the classification of investment securities at the time of purchase. If the Company has the intent and the ability at the time of purchase to hold debt securities until maturity, they are classified as held-to-maturity. Investment securities held-to-maturity are stated at amortized cost. Debt securities the Company does not intend to hold to maturity are classified as available for sale and carried at estimated fair value with unrealized gains or losses reported as a separate component of stockholders’ equity in accumulated other comprehensive income, net of applicable income taxes. Available for sale securities are a part of the Company’s asset/liability management strategy and may be sold in response to changes in interest rates, prepayment risk or other market factors. Interest income and dividends on securities are recognized in interest income on an accrual basis. Premiums and discounts on debt securities are amortized as an adjustment to interest income over the period to maturity of the related security using the effective interest method. Realized gains or losses on the sale of securities are determined using the specific identification method. The Company reviews investment securities for impairment on a quarterly basis or more frequently if events and circumstances warrant. In order to determine if a decline in fair value below amortized cost represents OTTI, management considers several factors, including but not limited to, the length of time and extent to which the fair value has been less than the amortized cost basis, the financial condition and near-term prospects of the issuer (considering factors such as adverse conditions specific to the issuer and the security and ratings agency actions) and the Company’s intent and ability to retain the investment in order to allow for an anticipated recovery in fair value. The Company recognizes OTTI of a debt security for which there has been a decline in fair value below amortized cost if (i) management intends to sell the security, (ii) it is more likely than not that the Company will be required to sell the security before recovery of its amortized cost basis, or (iii) the Company does not expect to recover the entire amortized cost basis of the security. The amount by which amortized cost exceeds the fair value of a debt security that is considered to have OTTI is separated into a component representing the credit loss, which is recognized in earnings, and a component related to all other factors, which is recognized in other comprehensive income. The measurement of the credit loss component is equal to the difference between the debt security’s amortized cost basis and the present value of its expected future cash flows discounted at the security’s effective yield. If the Company intends to sell the security, or if it is more likely than not it will be required to sell the security before recovery, an OTTI write-down is recognized in earnings equal to the entire difference between the amortized cost basis and fair value of the security. The Bank, as a member of the FHLB is required to maintain an investment in the stock of the FHLB. No market exists for this stock, and the Bank’s investment can be liquidated only through redemption by the FHLB, at the discretion of and subject to conditions imposed by the FHLB. Historically, FHLB stock redemptions have been at cost (par value), which equals the Company’s carrying value. The Company monitors its investment in FHLB stock for impairment through review of recent financial results of the FHLB including capital adequacy and liquidity position, dividend payment history, redemption history and information from credit agencies. The Company has not identified any indicators of impairment of FHLB stock.
Loans	Loans The Company’s accounting methods for loans differ depending on whether the loans are new (“New” loans) or acquired (“Acquired” loans), and for acquired loans, whether the loans were acquired at a discount as a result of credit deterioration since the date of origination.
New Loans	New Loans The Company accounts for originated loans and purchased loans not acquired through business acquisitions as New loans. New loans that management has the intent and ability to hold for the foreseeable future are reported at their outstanding principal balances net of any allowance for loan losses, unamortized deferred fees and costs and unamortized premiums or discounts. The net amount of nonrefundable loan origination fees and certain direct costs associated with the lending process are deferred and amortized into interest income over the contractual lives of the New loans using methods which approximate the level yield method. Discounts and premiums are amortized or accreted into interest income over the estimated term of the New loans using methods that approximate the level yield method. Interest income on New loans is accrued based on the unpaid principal balance outstanding and the contractual terms of the loan agreements.
Acquired Loans	Acquired Loans Acquired loans are accounted for under ASC 310-30 unless the loan type is excluded from the scope of ASC 310-30 (i.e. loans where borrowers have revolving privileges at acquisition date, or “Non-ASC 310-30” loans). The Company has elected to account for loans acquired with deteriorated credit quality since origination under ASC 310-30 (“ASC 310-30” loans or pools) due to the following: • There is evidence of credit quality deterioration since origination resulting in a “Day 1” discount attributable, at least in part, to credit quality; • The loans were acquired in a business combination or asset purchase; and • The loans are not to be subsequently accounted for at fair value. The Company has elected this policy for loans acquired through business combinations exhibiting credit deterioration since origination, except those loan types which have been scoped out of ASC 310-30. Substantially all loans acquired through the FDIC-assisted acquisitions had a fair value discount at acquisition date due at least in part to deterioration in credit quality since origination. However, there was a separate grouping of loans individually identified with substantial credit impairment that would be explicitly scoped into ASC 310-30 from those that were classified by analogy. The Company determined that a loan would be explicitly scoped into ASC 310-30 if there was evidence of credit deterioration at Day 1 and that it was probable that the Company would be unable to collect all contractual cash flows receivable. The loans that were classified by analogy were determined to have evidence of credit deterioration at Day 1 and that it was possible, not probable, that the Company would be unable to collect all contractual cash flows receivable. For each acquisition, ASC 310-30 loans are aggregated into pools based on common risk characteristics, which includes similar credit risk of the loans based on whether loans were analogized or were explicitly scoped into ASC 310-30, internal risk ratings for commercial real estate, land and development and commercial loans; and performing status for consumer and single family residential loans. Pools of loans are further aggregated by collateral type (e.g. commercial real estate, single family residential, etc.). The Company did not elect to aggregate loans into pools that were acquired from separate acquisitions completed in the same fiscal quarter. Acquired loans are recorded at their fair value at the acquisition date. Fair value for acquired loans is based on a discounted cash flow methodology that considers factors including the type of loan and related collateral type, delinquency and credit classification status, fixed or variable interest rate, term of loan, whether or not the loan was amortizing, and current discount rates. Additional assumptions used include default rates, loss severity, loss curves and prepayment speeds. Discounts due to credit quality are included in the determination of fair value; therefore an allowance for loan losses is not recorded at the acquisition date. The discount rates used for the cash flow methodology are based on market rates for new originations of comparable loans at the time of acquisition and include adjustments for liquidity concerns. The fair value is determined from the discounted cash flows for each individual loan, and for ASC 310-30 loans are then aggregated at the unit of account, or pool level. For acquired loans with deteriorated credit quality, the Company makes an estimate of the total cash flows it expects to collect from the loans in each pool, which includes undiscounted expected principal and interest as well as cash received through other forms of satisfaction (e.g. foreclosure). The excess of contractual amounts over the total cash flows expected to be collected from the loans is referred to as non-accretable difference, which is not accreted into income. The excess of the expected undiscounted cash flows over the carrying value of the loans is referred to as accretable discount. Accretable discount is recognized as interest income on a level-yield basis over the expected term of the loans in each pool. The Company continues to estimate cash flows expected to be collected over the expected term of the ASC 310-30 loans on a quarterly basis. Subsequent increases in total cash flows expected to be collected are recognized as an adjustment to the accretable discount with the amount of periodic accretion adjusted over the remaining expected term of the loans. Subsequent decreases in cash flows expected to be collected over the expected term of the loans are recognized as impairment in the current period through a provision for loan losses. Each pool is accounted for as a single asset with a single composite interest rate and an aggregate expectation of cash flows. Resolutions of loans may include sales to third parties, receipt of payments in settlement with the borrower, or foreclosure of the collateral. Upon these resolutions, the Company’s policy is to remove an individual ASC 310-30 loan from a pool based on comparing the amount received from its resolution with its contractual amount. Any difference between these amounts is absorbed by the nonaccretable difference. This removal method assumes that the amount received from these resolutions approximates the pool performance expectations of cash flows. The accretable yield percentage is unaffected by the resolution. Any changes in the effective yield for the remaining loans in the pool are addressed by the quarterly cash flow evaluation process for each pool. For loans that are resolved by payment in full, there is no release of the nonaccretable difference for the pool because there is no difference between the amount received at resolution and the contractual amount of the loan. Payments received in excess of expected cash flows may result in an ASC 310-30 pool becoming fully amortized and its carrying value reduced to zero even though outstanding contractual balances remain related to loans in the pool. Once the carrying value of an ASC 310-30 pool is reduced to zero, any future proceeds from the borrower or from the sale of loans are recognized as interest income upon receipt. There were six ASC 310-30 pools whose carrying value had been reduced to zero as of December 31, 2016 . These pools had an aggregate Unpaid Principal Balance (“UPB” or “UPBs”) of $456 thousand as of December 31, 2016 . For the year ended December 31, 2016 , the Company sold approximately $75.3 million of loans accounted for under ASC 310-30. These sales resulted in proceeds that exceeded the carrying value of the accounting pool in which the loans resided of $27.2 million which was recognized as interest income. Non-ASC 310-30 loans are recorded at their estimated fair value as of the acquisition date and subsequently accounted for under ASC Topic 310-20, Receivables—Nonrefundable Fees and Other Costs (“ASC 310-20”). The fair value discount is accreted using methods which approximate the level-yield method over the remaining term of the loans and is recognized as a component of interest income.
Loans Held for Sale	Loans Held for Sale Certain residential fixed rate and adjustable rate mortgage loans originated by the Company with the intent to sell in the secondary market are carried at the lower of cost or fair value, as determined by outstanding commitments from investors or prevailing market prices. These loans are generally sold on a non-recourse basis with servicing released. Gains and losses on the sale of loans recognized in earnings are measured based on the difference between proceeds received and the carrying amount of the loans, inclusive of deferred origination fees and costs, if any.
Nonaccrual Loans	Nonaccrual Loans For New and Non-ASC 310-30 loans, the Company classifies loans as past due when the payment of principal or interest is greater than 30 days delinquent based on the contractual next payment due date. The Company’s policies related to when loans are placed on nonaccrual status conform to guidelines prescribed by regulatory authorities. Loans are placed on nonaccrual status when it is probable that principal or interest is not fully collectible, or generally when principal or interest becomes 90 days past due, whichever occurs first. Loans secured by 1-4 single family residential properties may remain in accruing status until they are 180 days past due if management determines that it does not have concern over the collectability of principal and interest because the loan is adequately collateralized and in the process of collection. When loans are placed on nonaccrual status, interest receivable is reversed against interest income in the current period and amortization of any discount ceases. Interest payments received thereafter are applied as a reduction to the remaining principal balance unless management believes that the ultimate collection of the principal is likely, in which case payments are recognized in earnings on a cash basis. Loans are removed from nonaccrual status when they become current as to both principal and interest and the collectability of principal and interest is no longer doubtful. Generally, a nonaccrual loan that is restructured remains on nonaccrual for a period of six months to demonstrate the borrower can meet the restructured terms. 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 may result in the loan being returned to accrual status after a shorter performance period. If the borrower’s ability to meet the revised payment schedule is not reasonably assured, the loan remains classified as a nonaccrual loan. Contractually delinquent ASC 310-30 loans are not classified as nonaccrual as long as the discount continues to be accreted on the corresponding ASC 310-30 pool.
Troubled Debt Restructurings	Troubled Debt Restructurings In certain situations due to economic or legal reasons related to a borrower’s financial difficulties, the Company may grant a concession to the borrower for other than an insignificant period of time that it would not otherwise consider. At that time, except for ASC 310-30 loans, which are accounted for as pools, the related loan is classified as a troubled debt restructuring (“TDR”) and considered impaired. Modified ASC 310-30 loans accounted for in pools are not accounted for as TDRs, are not separated from the pools and are not classified as impaired loans. The concessions granted may include rate reductions, principal forgiveness, payment forbearance, extensions of maturity at rates of interest below those commensurate with the risk profile of the borrower, and other actions intended to minimize economic loss. A troubled debt restructured loan is generally placed on nonaccrual status at the time of the modification unless the borrower has no history of missed payments for six months prior to the restructuring. If the borrower performs pursuant to the modified loan terms for at least six months and the remaining loan balance is considered collectible, the loan is returned to accrual status.
Impaired Loans	Impaired Loans An ASC 310-30 pool is considered to be impaired when it is probable that the Company will be unable to collect all the cash flows expected at acquisition, plus additional cash flows expected to be collected arising from changes in estimates after acquisition. All ASC 310-30 pools are evaluated individually for impairment based their expected total cash flows. The discount continues to be accreted on ASC 310-30 pools as long as there are expected future cash flows in excess of the current carrying amount of the pool. Non-ASC 310-30 and New loans are considered impaired when, based on current information and events, it is probable that the Company will be unable to collect the scheduled payments of principal or interest when due, according to the contractual terms of the loan agreements. All Non-ASC 310-30 and new loans of $250,000 or greater with an internal risk rating of substandard or below and on nonaccrual, as well as loans classified as TDRs are reviewed individually for impairment on a quarterly basis.
Allowance for Loan Losses	Allowance for Loan Losses The Company’s ALL is established for both performing and nonperforming loans. The Company’s ALL is the amount considered adequate to absorb probable losses within the portfolio based on management’s evaluation of the size and current risk characteristics of the loan portfolio. Such evaluation considers numerous factors including, but not limited to, internal risk ratings, loss forecasts, collateral values, geographic location, borrower FICO scores, delinquency rates, nonperforming and restructured loans, origination channels, product mix, underwriting practices, industry conditions, economic trends and net charge-off trends. The ALL relates to new loans, estimated additional losses arising on Non-ASC 310-30 loans subsequent to the acquisitions and additional impairment recognized as a result of decreases in expected cash flows on ASC 310-30 pools due to further credit deterioration or other factors since the acquisitions. The ALL consists of both specific and general components. For ASC 310-30 pools, a specific valuation allowance is established when it is probable that the Company will be unable to collect all of the cash flows expected at acquisition, plus the additional cash flows expected to be collected arising from changes in estimates after acquisition. Expected cash flows are estimated on an individual loan basis and then aggregated at the ASC 310-30 pool level. The analysis of expected pool cash flows incorporates updated pool level expected prepayment rate, default rate, delinquency level and loss severity given default assumptions. These analyses incorporate information about loan performance, collateral values, the financial condition of the borrower, internal risk ratings, the Company’s own and industry historical delinquency and default severity data. The carrying value for ASC 310-30 pools is reduced by the amount of the calculated impairment, which is also the basis in which future accretion income is calculated. A charge-off is taken for an individual ASC 310-30 loan when it is deemed probable that the loan will be resolved for an amount less than its carrying value. The charge-off is taken to the specific allowance or mark as applicable. Alternatively, an improvement in the expected cash flows related to ASC 310-30 pools results in a reduction or recoupment of any previously established specific allowance with a corresponding credit to the provision for loan losses. Any recoupment recorded is limited to the amount of the remaining specific allowance for that pool, with any excess of expected cash flow resulting in a reclassification from non-accretable to accretable yield and an increase in the prospective yield of the pool. The new and Non-ASC 310-30 loan portfolios have limited delinquency and credit loss history and have not yet exhibited an observable loss trend. The credit quality of loans in these loan portfolios are impacted by delinquency status and debt service coverage generated by the borrowers’ businesses and fluctuations in the value of real estate collateral. Management considers delinquency status to be the most meaningful indicator of the credit quality of one-to-four single family residential, home equity loans and lines of credit and other consumer loans. Delinquency statistics are updated at least monthly. Internal risk ratings are considered the most meaningful indicator of credit quality for Non ASC 310-30 and new commercial, construction, land and development, and commercial real estate loans. Internal risk ratings are a key factor in identifying loans that are individually evaluated for impairment and impact management’s estimates of loss factors used in determining the amount of the ALL. Internal risk ratings are updated on a continuous basis. Relationships with balances in excess of $250,000 are re-evaluated at least annually and more frequently if circumstances indicate that a change in risk rating may be warranted. New and Non-ASC 310-30 loans of $250,000 or greater with an internal risk rating of substandard or below and on nonaccrual, as well as loans classified as TDR are reviewed individually for impairment on a quarterly basis. The specific allowance established for these loans is based on a thorough analysis of the most probable source of repayment, including the present value of the loan’s expected future cash flows, the loan’s estimated market value or the estimated fair value of the underlying collateral less costs of disposition. General allowances are established for new and Non-ASC 310-30 loans that are not evaluated individually for impairment, which are evaluated by loan category based on common risk characteristics. In this process, general loan loss factors are established based on the following: industry historical losses segmented by portfolio and asset categories; trends in delinquencies and nonaccruals by loan portfolio segment and asset categories within those segments; portfolio segment and asset category production trends, including average risk ratings and loan-to value (“LTV”) ratios; current industry conditions, including real estate market trends; general economic conditions; credit concentrations by portfolio and asset categories; and portfolio quality, which encompasses an assessment of the quality and relevance of borrowers’ financial information and collateral valuations and average risk rating and migration trends within portfolios and asset categories. Other adjustments for qualitative factors may be made to the allowance after an assessment of internal and external influences on credit quality and loss severity that are not fully reflected in the historical loss or risk rating data. For these measurements, the Company uses assumptions and methodologies that are relevant to estimating the level of impairment and probable losses in the loan portfolio. To the extent that the data supporting such assumptions has limitations, management’s judgment and experience play a key role in recording the allowance estimates. Qualitative adjustments are considered for: portfolio credit quality trends, including levels of delinquency, charge-offs, nonaccrual, restructuring and other factors; policy and credit standards, including quality and experience of lending and credit management; and general economic factors, including national, regional and local conditions and trends. Additions to the ALL are made by provisions charged to earnings. The allowance is decreased by charge-offs of balances no longer deemed collectible. Charge-offs on new and Non-ASC 310-30 loans are recognized as follows: commercial loans are written-off when management determines them to be uncollectible; for unsecured consumer loans at 90 days past due; and for residential real estate loans and secured consumer loans when they become 120 to 180 days past due, depending on the collateral type. The Company reports recoveries on a cash basis at the time received. Recoveries on ASC 310-30 loans that were charged-off and Non-ASC 310-30 loans that were charged-off prior to the Acquisitions are recognized in earnings as income from resolution of acquired assets and do not affect the allowance for loan losses. All other recoveries are credited to the ALL.
Loss Share Indemnification Asset and Clawback Liability	Loss Share Indemnification Asset and Clawback Liability On March 4, 2015, the Bank entered into an agreement with the FDIC to terminate all loss sharing agreements which were entered into in 2010 and 2011 in conjunction with the Bank’s acquisition of substantially all of the assets (“Covered Assets”) and assumption of substantially all of the liabilities of six failed banks in FDIC-assisted acquisitions. Under the early termination, all rights and obligations of the Bank and the FDIC under the loss share agreements, including the clawback provisions, have been eliminated. The amounts previously covered by the loss sharing agreements were the pre-acquisition book value of the underlying assets, the contractual balance of unfunded commitments that were acquired, and certain future net direct costs applicable to the Covered Assets. As required by the respective loss sharing agreements, the Company submitted a loss share certificate to the FDIC on a quarterly basis requesting reimbursement for losses on covered assets and covered expenses. Covered expenses were recorded in non-interest expense when incurred with an offsetting increase to the loss share indemnification asset and non-interest income for the amount expected to be reimbursed by the FDIC. Certain covered expenses were claimed upon resolution of the Covered Asset, resulting in the expense and the related reimbursements from the FDIC occurring in different periods. The Company reviewed and updated the cash flows expected to be collected on Covered Assets and the FDIC loss share indemnification asset on a quarterly basis as loss and recovery estimates related to Covered Assets change. Decreases in the amount of cash flows expected to be collected on Covered Loans after acquisition resulted in a provision for loan loss, an increase in the ALL, and a proportional increase to the FDIC loss share indemnification asset and income for the estimated amount to be reimbursed. Increases in the amount of cash flows expected to be collected on Covered Loans after acquisition resulted in the reversal of any previously-recorded provision for loan losses and related ALL and a decrease to the FDIC loss share indemnification asset, or prospective adjustment to the accretable discount if no provision for loan losses had been previously recorded. If no provision for loan losses had been previously recorded, improvements in the expected cash flows from the Covered Loans, which was reflected as an adjustment to yield and accreted into income over the remaining expected term of the loans, decreases the expected cash flows to be collected from the loss sharing agreement, with such decreases reducing the yield to be accreted on a prospective basis if the total expected cash flows from the loss sharing agreement exceeded its carrying amount; and, if the carrying amount of the FDIC loss share indemnification asset exceeded the total expected cash flows, the excess was amortized as a reduction of income over the shorter of (1) the remaining expected term of the respective loans or (2) the remaining term of the loss sharing agreement. As a result, the value of the FDIC loss share indemnification asset fluctuated over time based upon the performance of the Covered Assets and as the Company received payments from the FDIC under the loss sharing agreements. The loss sharing agreements between the Company and the FDIC for certain of the Acquisitions included clawback provisions that obligated the Company to pay the FDIC a certain amount in the event that losses incurred by the Company did not reach a specified threshold upon expiration of the loss sharing agreement. The fair value of the clawback liability was initially estimated using the same discounted cash flow model used to determine the loss share indemnification asset, using a discount rate that took into account the Company’s credit risk. The clawback liability was re-measured quarterly based on the terms of the applicable loss sharing agreement, changes in projected losses on Covered Assets and the cumulative servicing amount, if applicable. The clawback liability was included in other liabilities and the amortization and loss on re-measurement was included in loss share indemnification loss within noninterest income in the accompanying Consolidated Statements of Income.
Premises and Equipment	Premises and Equipment Premises and equipment are stated at cost less accumulated depreciation or amortization. Depreciation and amortization are computed using the straight-line method over the estimated useful lives of the related assets, except for land which is stated at cost. The useful lives of premises and equipment are: 39 years for bank premises; 3 to 5 years for computer equipment and software; and 5 years for furniture and equipment. Leasehold improvements are amortized on a straight-line basis over the lesser of the lease terms, including certain renewals that were deemed probable at lease inception, or the estimated useful lives of the improvements. Purchased software and external direct costs of computer software developed for internal use are capitalized provided certain criteria are met and amortized over the useful lives of the software. Rent expense and rental income on operating leases are recorded using the straight-line method over the appropriate lease terms.
OREO	OREO Real estate properties acquired through, or in lieu of, foreclosure or in connection with the Acquisitions, are held for sale and are initially recorded at their fair value less disposition costs. When such assets are acquired, any shortfall between the loan carrying value and the estimated fair value of the underlying collateral less disposition costs is recorded as an adjustment to the allowance for loan losses while any excess is recognized in income. The Company periodically performs a valuation of the property held; any excess of carrying value over fair value less disposition costs is charged to earnings as impairment. Routine maintenance and real estate taxes are expensed as incurred.
BOLI	BOLI The Bank owns life insurance policies on certain directors and current and former employees. These policies are recorded at the amount that can be realized under the insurance contract at the balance sheet date, which is the cash surrender value adjusted for other charges or other amounts due that are probable at settlement, if applicable. Increases in the cash surrender value of these policies are included in noninterest income in the Consolidated Statements of Income. The Company’s BOLI policies are invested in general account and hybrid account products that have been underwritten by highly-rated third party insurance carriers.
Goodwill and Other Intangible Assets	Goodwill and Other Intangible Assets Goodwill represents the excess of consideration transferred in business combinations over the fair value of net tangible and identifiable intangible assets acquired. Goodwill is not amortized, but is tested for impairment annually or more frequently if events or circumstances indicate that impairment may have occurred. The Company performs its annual goodwill impairment test in the fourth fiscal quarter. The Company has a single reporting unit. The impairment test compares the estimated fair value of the reporting unit to its carrying amount. If the fair value of the reporting unit exceeds its carrying amount, no impairment is indicated. If the fair value of the reporting unit is less than its carrying amount, impairment of goodwill is measured as the excess of the carrying amount of goodwill over its implied fair value. The Company uses the fair value of the Company’s publicly traded stock to estimate the fair value of the reporting unit. The estimated fair value of the reporting unit at the last impairment testing date exceeded its carrying amount; therefore, no impairment of goodwill was indicated. Core deposit intangible (“CDI”) is a measure of the value of checking and savings deposit relationships acquired in a business combination. The fair value of the CDI stemming from any given business combination is based on the present value of the expected cost savings attributable to the core deposit funding relative to an alternative source of funding. CDI is amortized over the estimated useful lives of the existing deposit relationships acquired, but does not exceed 10 years. The Company evaluates such identifiable intangibles for impairment when events and circumstances indicate that its carrying amount may not be recoverable. If an impairment loss is determined to exist, the loss is reflected as an impairment charge in the Consolidated Statements of Income for the period in which such impairment is identified. No impairment charges were required to be recorded for the years ended December 31, 2016 , 2015 or 2014 .
Income Taxes	Income Taxes Income tax expense (benefit) is determined using the asset and liability method and consists of income taxes that are currently payable and deferred income taxes. Deferred income tax expense is determined by recognizing deferred tax assets and liabilities for future tax consequences attributable to temporary differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases. Deferred tax assets and liabilities are measured using enacted tax rates that are expected to apply to taxable income in years in which those temporary differences are expected to be recovered or settled. Changes in tax rates on deferred tax assets and liabilities are recognized in income in the period that includes the enactment date. A valuation allowance is established for deferred tax assets when management determines that it is more likely than not that some portion or all of a deferred tax asset will not be realized. In making such determinations, the Company considers all available positive and negative evidence that may impact the realization of deferred tax assets. These considerations include the amount of taxable income generated in statutory carryback periods, future reversals of existing taxable temporary differences, projected future taxable income and available tax planning strategies. The Company files a consolidated federal income tax return including the results of its wholly owned subsidiary, the Bank. The Company estimates income taxes payable based on the amount it expects to owe the various tax authorities (i.e., federal and state). Income taxes represent the net estimated amount due to, or to be received from, such tax authorities. In estimating income taxes, management assesses the relative merits and risks of the appropriate tax treatment of transactions, taking into account statutory, judicial, and regulatory guidance in the context of the Company’s tax position. Although the Company uses the best available information to record income taxes, underlying estimates and assumptions can change over time as a result of unanticipated events or circumstances such as changes in tax laws and judicial guidance influencing its overall tax position. An uncertain tax position is recognized only if it is more-likely-than-not to be sustained upon examination, including resolution of any related appeals or litigation process, based on the technical merits of the position. The amount of tax benefit recognized in the financial statements is the largest amount of benefit that is more than fifty percent likely to be sustained upon ultimate settlement of the uncertain tax position. If the initial assessment fails to result in recognition of a tax benefit, the Company subsequently recognizes a tax benefit if there are changes in tax law or case law that raise the likelihood of prevailing on the technical merits of the position to more-likely-than-not, the statute of limitations expires, or there is a completion of an examination resulting in a settlement of that tax year or position with the appropriate agency. The Company recognizes interest related to unrecognized tax benefits in income tax expense (benefit) and penalties, if any, in other operating expenses.
Derivatives	Derivatives The Company accounts for derivative instruments in accordance with FASB ASC Topic 815, “Derivatives and Hedging.” All derivatives are evaluated at inception as to whether or not they are hedging or non-hedging activities, and appropriate documentation is maintained to support the final determination. The Company recognizes all derivatives as either assets or liabilities on the Consolidated Balance Sheets and measures those instruments at fair value. Certain derivative transactions with a particular counterparty, another financial institution, are subject to an enforceable master netting arrangement. The gross liabilities and gross assets to this counterparty are reported on a net basis. Management periodically reviews contracts from various functional areas of the Company to identify potential derivatives embedded within selected contracts. As of December 31, 2016, the Company had interest derivative positions that are not designated as hedging instruments. See Note 8 “Derivatives” for a description of these instruments.
Contingent Consideration Issued to the FDIC	Contingent Consideration Issued to the FDIC In conjunction with certain Acquisitions, the Bank issued contingent consideration to the FDIC in the form of equity appreciation agreements (“EAAs”). Based on their settlement provisions, these instruments were classified as other liabilities in the accompanying Consolidated Balance Sheets and were adjusted to estimated fair value at each financial statement date, with changes in value reflected in other noninterest expenses in the accompanying Consolidated Statements of Income. The fair value of the contingent consideration was based upon projections of the Company’s future estimate value by a third party financial institution valuation specialist. The valuation was based upon the Company’s financial projections and the valuation specialist’s assumptions about the future market valuation of the financial projections derived from historical market price ratios including price to tangible book value and price to earnings. These future projected prices were discounted at a market required equity return derived from the capital asset pricing model. In accordance with the terms of each of the agreements, a range of potential consideration was estimated and a probability was assigned based on management’s judgment to each estimated payment liability to determine a probability weighted expected value. As of December 31, 2016 , the Company had no remaining EAAs, as the EAAs reached final settlement with the FDIC on September 29, 2014.
Off-Balance Sheet Arrangements	$3 Billion". This analysis involves calculating an average reserve rate for unfunded commitments using a rolling eight quarter basis of the most recent data available. Based on this peer group analysis, FCB records a reserve for unfunded commitments calculated using a rate in line with peer banks." id="sjs-B28">Off-Balance Sheet Arrangements The Company enters into contractual loan commitments to extend credit, normally with fixed expiration dates or termination clauses, at specified rates and for specific purposes. Since a portion of the commitments are expected to expire without being drawn upon, the total commitment amounts do not necessarily represent future cash requirements. Substantially all of the commitments to extend credit are contingent upon customers maintaining specific credit standards until the time of loan funding. The Company decreases its exposure to loss under these commitments by subjecting them to credit approval and monitoring procedures. Standby letters of credit are written conditional commitments issued by the Company to guarantee the performance of a customer to a third party. In the event the customer does not perform in accordance with the terms of the agreement with the third party, the Company would be required to fund the commitment. The maximum potential amount of future payments the Company could be required to make is represented by the contractual amount of the commitment. If the commitment is funded, the Company would be entitled to seek recovery from the customer. The Company’s policies generally require that standby letter of credit arrangements contain security and debt covenants similar to those contained in loan agreements. The Company assesses the credit risk associated with certain commitments to extend credit and establish a liability for probable credit losses. The Company’s exposure to credit loss is represented by the contractual amount of these commitments. The Company records a reserve in the amount considered adequate to absorb estimated losses. Since the Company has limited credit loss history, management performs an analysis of reserve rates for banks in in the FFIEC Group 1 – "Commercial Banks with assets >$3 Billion". This analysis involves calculating an average reserve rate for unfunded commitments using a rolling eight quarter basis of the most recent data available. Based on this peer group analysis, FCB records a reserve for unfunded commitments calculated using a rate in line with peer banks.
Stock-based Compensation	Stock-based Compensation The Company sponsors an incentive stock option plan established in 2009 (the “2009 Option Plan”) under which options may be granted periodically to key employees and directors of the Company or its affiliates at a specific exercise price to acquire shares of the Company’s Class A common stock. Compensation cost is measured based on the estimated fair value of the award at the grant date and is recognized in earnings on a straight-line basis over the requisite service period. The fair value of stock options is estimated at the date of grant using the Black-Scholes option pricing model. This model requires assumptions as to the expected stock volatility, dividends, terms and risk-free rates. The expected volatility is based on the volatility of comparable peer banks. The expected term represents the period of time that options are expected to be outstanding from the grant date. The risk-free interest rate is based on the US Treasury yield curve in effect at the time of grant for the appropriate life of each option. The expected dividend yield was determined by management based on the expected dividends to be declared over the expected term of the options. In the fourth quarter of 2013, the Company established the 2013 Stock Incentive Plan (the “2013 Incentive Plan”) covering its executive management, directors, individual consultants and employees to receive stock awards for the Company’s common stock. The 2013 Incentive Plan provided that the awards were not exercisable until certain performance conditions were met, which included the completion of an IPO raising at least $100 million (a “Qualified IPO”) or a “Special Transaction”, generally defined as the consummation of a transaction representing a change of control of the Company. On August 6, 2014, the Company completed the initial public offering of 7,520,000 shares of Class A common stock for $22.00 per share. This public offering constituted a “Qualified IPO” with respect to the Company’s Option awards and 2013 Incentive Plan. In 2016, the Company approved the FCB Financial Holdings, Inc. 2016 Stock Incentive Plan (the “2016 Incentive Plan”) covering its executive management, directors, individual consultants and employees. The 2016 Incentive Plan provides that awards may be granted under the plan with respect to an aggregate of 2,000,000 shares of Class A Common Stock of the Company. Shares issued pursuant to the Plan may be authorized but unissued Common Stock, authorized and issued Common Stock held in the Company’s treasury or Common Stock acquired by the Company for the purposes of the Plan. See Note 14 “Stock-based Compensation and Other Benefit Plans” for further information regarding the 2009 Option Plan and the 2013 and 2016 Incentive Plans.
Earnings per Share	Earnings per Share Basic earnings per common share is calculated by dividing net income available to common stockholders by the weighted average number of common shares outstanding during the period. Diluted earnings per common share reflect the effect of common stock equivalents, including stock options and unvested shares, calculated using the treasury stock method. Common stock equivalents are excluded from the computation of diluted earnings per common share in periods in which the effect is anti-dilutive.
Segment Reporting	Segment Reporting The Company operates in one reportable segment of business, Community Banking, which includes the Bank, the Company’s sole banking subsidiary. Through the Bank, the Company provides a broad range of retail and commercial banking services. Management makes operating decisions and assesses performance based on an ongoing review of these banking operations, which constitute the Company’s only operating segment.
Recent Adopted and Issued Accounting Pronouncements	Recently Adopted Accounting Pronouncements In June 2014, the FASB issued ASU No. 2014-12, “Compensation- Stock Compensation (Topic 718) —Accounting for Share-Based Payments When the Terms of an Award Provide That a Performance Target Could be Achieved after the Requisite Service Period”. This update provides specific guidance on whether to treat a performance target that could be achieved after the requisite service period as a performance condition that affects vesting or as a non-vesting condition that affects the grant-date fair value of an award. This ASU became effective for the first quarter ended March 31, 2016. The adoption of this ASU did not have a material impact on the Company’s consolidated financial statements. In November 2014, the FASB issued ASU No. 2014-16, “Determining Whether the Host Contract in a Hybrid Financial Instrument Issued in the Form of a Share is More Akin to Debt or Equity – a consensus of the FASB Emerging Issues Task Force (ASC 815, Derivatives and Hedging)”. This update requires an entity to determine the nature of an instrument by evaluating all economic characteristics and risks of the entire hybrid instrument when determining whether the host is more akin to debit or equity. This ASU became effective for the first quarter ended March 31, 2016. The adoption of this ASU did not have a material impact on the Company’s consolidated financial statements. In January 2015, the FASB issued ASU No. 2015-1, “Simplifying Income Statement Presentation by Eliminating the Concept of Extraordinary Items (ASC 225-20, Extraordinary and Unusual Items)” which eliminates the concept of extraordinary items. The amendments are effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2015 for all entities. Under the ASU, extraordinary items will no longer be segregated from the results of ordinary operations and presented separately on the consolidated financial statements. This ASU became effective for the first quarter ended March 31, 2016. The adoption of this ASU did not have a material impact on the Company’s consolidated financial statements. In February 2015, the FASB issued ASU No. 2015-2, “Amendments to the Consolidated Analysis (ASC 810, Consolidation)” which amends the consolidation requirements of ASC 810 by reducing the number of consolidation models. The guidance places more emphasis on risk of loss when determining a controlling financial interest; reduces the frequency of the application of related-party guidance when determining a controlling financial interest and changes the consolidation requirements of limited partnerships. This ASU became effective for the first quarter ended March 31, 2016. The adoption of this ASU did not have a material impact on the Company’s consolidated financial statements. In September 2015, the FASB issued ASU No. 2015-16, “Business Combinations (Topic 805): Simplifying the Accounting for Measurement-Period Adjustments” which requires an acquirer to recognize adjustments to provisional amounts that are identified during the measurement period in the reporting period in which the adjustment amounts are determined. The amendments in this ASU require that the acquirer record, in the same period’s financial statements, the effect on earnings of changes in depreciation, amortization, or other income effects, if any, as a result of the change to the provisional amounts, calculated as if the accounting had been completed at the acquisition date. This ASU became effective for the first quarter ended March 31, 2016. The adoption of this ASU did not have a material impact on the Company’s consolidated financial statements. Recent Issued Accounting Pronouncements In May 2014, the FASB issued ASU No. 2014-09, “Revenue from Contracts with Customers (Topic 606)”, which will supersede the revenue recognition requirements in Topic 605, Revenue Recognition, and most industry-specific revenue recognition guidance throughout the Accounting Standards Codification. Under ASU No. 2014-09, revenue should be recognized to depict the transfer of goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. In applying the guidance, an entity should 1) identify the contract(s) with a customer, 2) identify the performance obligations in the contract, 3) determine the transaction price, 4) allocate the transaction price to the performance obligations in the contract, and 5) recognize revenue when the entity satisfies a performance obligation. For public entities, the amendments in this update are effective for annual reporting periods beginning after December 15, 2016, including interim periods within that reporting period. In August 2015, the FASB issued ASU No. 2015-14 delaying the effective date of ASU No. 2014-09. Public business entities, certain not-for-profit entities, and certain employee benefit plans should apply the guidance in Update 2014-09 to annual reporting periods beginning after December 15, 2017, including interim reporting periods within that reporting period. Because this guidance does not apply to revenue associated with financial instruments, including loans or securities, the new guidance is not expected to have a material impact on the components of income most closely associated with financial instruments, including securities gains/losses and interest income. The Company is currently evaluating this guidance to determine the impact on components of noninterest income. The Company does not plan to early adopt this guidance and has not yet identified which transition method will be applied upon adoption. In January 2016, the FASB issued ASU No. 2016-01, “Financial Instruments-Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities” which: • Requires equity investments (except those accounted for under the equity method of accounting or those that result in consolidation of the investee) to be measured at fair value with changes in fair value recognized in net income. • Simplifies the impairment assessment of equity investments without readily determinable fair values by requiring a qualitative assessment to identify impairment. When a qualitative assessment indicates that impairment exists, an entity is required to measure the investment at fair value. • Eliminates the requirement for public business entities to disclose the method(s) and significant assumptions used to estimate the fair value that is required to be disclosed for financial instruments measured at amortized cost on the balance sheet. • Requires public business entities to use the exit price notion when measuring the fair value of financial instruments for disclosure purposes. • Requires an entity to present separately in other comprehensive income the portion of the total change in the fair value of a liability resulting from a change in the instrument-specific credit risk when the entity has elected to measure the liability at fair value in accordance with the fair value option for financial instruments. • Requires separate presentation of financial assets and financial liabilities by measurement category and form of financial asset (that is, securities or loans and receivables) on the balance sheet or the accompanying notes to the financial statements. • Clarifies that an entity should evaluate the need for a valuation allowance on a deferred tax asset related to available-for-sale securities in combination with the entity’s other deferred tax assets. For public business entities, the amendments in this ASU are effective for fiscal years beginning after December 15, 2017, including interim periods within those fiscal years. Early application by public business entities to financial statements of fiscal years or interim periods that have not yet been issued or, by all other entities, that have not yet been made available for issuance of the following amendments in this ASU are permitted as of the beginning of the fiscal year of adoption: 1. An entity should present separately in other comprehensive income the portion of the total change in the fair value of a liability resulting from a change in the instrument-specific credit risk if the entity has elected to measure the liability at fair value in accordance with the fair value option for financial instruments. 2. Entities that are not public business entities are not required to apply the fair value of financial instruments disclosure guidance in the General Subsection of Section 825-10-50. Except for the early application guidance discussed above, early adoption of the amendments in this ASU is not permitted. An entity should apply the amendments by means of a cumulative-effect adjustment to the balance sheet as of the beginning of the fiscal year of adoption. The amendments related to equity securities without readily determinable fair values (including disclosure requirements) should be applied prospectively to equity investments that exist as of the date of adoption of the ASU. The Company is currently evaluating this guidance to determine the impact on its consolidated financial position, results of operations or cash flows. In February 2016, the FASB issued ASU No. 2016-02, “Leases (Topic 842)” which created Topic 842, Leases, and supersedes the leases requirements in Topic 840, Leases. Topic 842 specifies the accounting for leases. The core principal of Topic 842 is that a lessee should recognize the assets and liabilities that arise from leases. A lessee should recognize in the statement of financial position a liability to make lease payments (the lease liability) and a right-of-use asset representing its right to use the underlying asset for the lease term. For leases with a term of 12 months or less, a lessee is permitted to make an accounting policy election by class of underlying asset not to recognize lease assets and liabilities. For public entities, the amendments in this ASU are effective for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. Early application of the amendments in this ASU is permitted. The Company does not believe the adoption of this guidance will have a material impact on its consolidated financial position, results of operations or cash flows. In March 2016, the FASB issued ASU No. 2016-06, “Derivatives and Hedging (Topic 815): Contingent Put and Call Options in Debt Instruments” which clarifies the requirements for assessing whether contingent call (put) options that can accelerate the payment of principal on debt instruments are clearly and closely related to their debt hosts. An entity performing the assessment under the amendments in this ASU is required to assess the embedded call (put) options solely in accordance with the four-stop decision sequence. The amendments are an improvement to GAAP because they eliminate diversity in practice in assessing embedded contingent call (put) options in debt instruments. For public business entities, the amendments in this ASU are effective for financial statements issued for fiscal years beginning after December 15, 2016, and interim periods within those fiscal years. An entity should apply the amendments in this ASU on a modified retrospective basis to existing debt instruments as of the beginning of the fiscal year for which the amendments are effective. Early adoption is permitted, including adoption in an interim period. If an entity early adopts the amendments in an interim period, any adjustments should be reflected as of the beginning of the fiscal year that includes that interim period. The Company does not believe the adoption of this guidance will have a material impact on its consolidated financial position, results of operations or cash flows. In March 2016, the FASB issued ASU No. 2016-07, “Investments-Equity Method and Joint Ventures (Topic 323): Simplifying the Transition to the Equity Method of Accounting” which eliminate the requirement that when an investment qualifies for use of the equity method as a result of an increase in the level of ownership interest or degree of influence, an investor must adjust the investment, results of operations, and retained earnings retroactively on a step-by-step basis as if the equity method had been in effect during all previous periods that the investment had been held. The amendments require that the equity method investor add the cost of acquiring the additional interest in the investee to the current basis of the investor’s previously held interest and adopt the equity method of accounting as of the date the investment becomes qualified for equity method accounting. Therefore, upon qualifying for the equity method of accounting, no retroactive adjustment of the investment is required. The amendments in this ASU require that an entity that has an available-for-sale equity security that becomes qualified for the equity method of accounting recognize through earnings the unrealized holding gain or loss in accumulated other comprehensive income at the date the investment becomes qualified for use of the equity method. The amendments in this ASU are effective for all entities for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2016. The amendments should be applied prospectively upon their effective date to increases in the level of ownership interest or degree of influence that result in the adoption of the equity method. Earlier application is permitted. The Company does not believe the adoption of this guidance will have a material impact on its consolidated financial position, results of operations or cash flows. In March 2016, the FASB issued ASU No. 2016-09, “Compensation-Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting” which simplifies several aspects of the accounting for employee share-based payment transactions including the accounting for income taxes, forfeitures, and statutory tax withholding requirements, as well as classification in the statement of cash flows. This ASU eliminates equity treatment for tax benefits or deficiencies that result from differences between the compensation cost recognized for GAAP purposes and the related tax deduction at settlement or expiration with such changes recognized in income tax expense and excludes excess tax benefits and tax deficiencies from the calculation of assumed proceeds for earnings per share purposes since such amounts are recognized in the income statement, which will result in greater volatility in earnings per share. In addition, this ASU simplifies the statements of cash flows by eliminating the bifurcation of excess tax benefits from operating activities to financing activities. Upon adoption, the amendments in this ASU provide for a tiered transition approach whereby amendments related to the timing of when excess tax benefits are recognized, minimum statutory withholding requirements and forfeitures should be applied using a modified retrospective transition method by means of a cumulative-effect adjustment to equity as of the beginning of the period in which the guidance is adopted. Amendments related to the presentation of employee taxes paid on the statement of cash flows when an employer withholds shares to meet the minimum statutory withholding requirement should be applied retrospectively. Amendments requiring recognition of excess tax benefits and tax deficiencies in the income statement should be applied prospectively. An entity may elect to apply the amendments related to the presentation of excess tax benefits on the statement of cash flows using either a prospective transition method or a retrospective transition method. This ASU is effective for annual reporting periods beginning after December 15, 2016, and interim periods within those annual periods with early adoption permitted. The Company expects to elect to account for forfeitures of stock-based awards when they occur and to adopt the presentation of the excess tax benefits on the statement of cash flows on a retrospective basis. The adoption of this guidance is not expected to be material to the consolidated financial statements, results of operations or cash flows. In May 2016, the FASB issued ASU No. 2016-10, “Revenue from Contracts with Customers (Topic 606): Identifying Performance Obligations and Licensing.” The amendments in this ASU do not change the core principle of the guidance in Topic 606. Rather, the amendments in this ASU clarify the following two aspects of Topic 606: identifying performance obligations and the licensing implementation guidance, while retaining the related principles for those areas. The amendments in this ASU affect the guidance in ASU 2014-09, “Revenue from Contracts with Customers (Topic 606)”, which is not yet effective. The effective date and transition requirements for the amendments in this ASU are the same as the effective date and transition requirements in Topic 606 (and any other Topic amended by ASU 2014-09). ASU 2015-14, “Revenue from Contracts with Customers (Topic 606): Deferral of the Effective Date”, deferred the effective date of ASU 2014-09 by one year. Public business entities, certain not-for-profit entities, and certain employee benefit plans should apply the guidance in ASU 2014-09 to annual reporting periods beginning after December 15, 2017, including interim reporting periods within that reporting period. The Company is currently evaluating this guidance to determine the impact on its consolidated financial position, results of operations or cash flows. In May 2016, the FASB issued ASU No. 2016-12, “Revenue from Contracts with Customers (Topic 606): Narrow-Scope Improvements and Practical Expedients.” The amendments in this ASU do not change the core principle of the guidance in Topic 606. Rather, the amendments in this ASU clarify the guidance on assessing collectability, presentation of sales taxes, noncash consideration, and completed contracts and contract modifications at transition. The amendments in this ASU affect the guidance in ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606), which is not yet effective. The effective date and transition requirements for the amendments in this ASU are the same as the effective date and transition requirements in Topic 606 (and any other Topic amended by ASU 2014-09). ASU 2015-14, “Revenue from Contracts with Customers (Topic 606): Deferral of the Effective Date”, deferred the effective date of ASU 2014-09 by one year. Public business entities, certain not-for-profit entities, and certain employee benefit plans should apply the guidance in ASU 2014-09 to annual reporting periods beginning after December 15, 2017, including interim reporting periods within that reporting period. The Company is currently evaluating this guidance to determine the impact on its consolidated financial position, results of operations or cash flows. In June 2016, the FASB issued ASU No. 2016-13, “Financial Instruments - Credit losses (Topic 326): Measurement of credit losses on financial instruments.” Topic 326 amends guidance on reporting credit losses for assets held at amortized cost basis and available for sale debt securities. For assets held at amortized cost basis, Topic 326 eliminates the probable initial recognition threshold in current GAAP and, instead, requires an entity to reflect its current estimate of all expected credit losses. The allowance for credit losses is a valuation account that is deducted from the amortized cost basis of the financial assets to present the net amount expected to be collected. For available for sale debt securities, credit losses should be measured in a manner similar to current GAAP, however Topic 326 will require that credit losses be presented as an allowance rather than as a write-down. This ASU affects entities holding financial assets and net investment in leases that are not accounted for at fair value through net income. The amendments affect loans, debt securities, trade receivables, net investments in leases, off balance sheet credit exposures, reinsurance receivables, and any other financial assets not excluded from the scope that have the contractual right to receive cash. For public business entities that are SEC filers, the amendments in this ASU are effective for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years. For all other public business entities, the amendments in this ASU are effective for fiscal years beginning after December 15, 2020, including interim periods within those fiscal years. All entities may adopt the amendments in this ASU earlier as of the fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. An entity will apply the amendments in this ASU through a cumulative-effect adjustment to retained earnings as of the beginning of the first reporting period in which the guidance is effective (that is, a modified-retrospective approach). A prospective transition approach is required for debt securities for which an other-than-temporary impairment had been recognized before the effective date. The effect of a prospective transition approach is to maintain the same amortized cost basis before and after the effective date of this ASU. Amounts previously recognized in accumulated other comprehensive income as of the date of adoption that relate to improvements in cash flows expected to be collected should continue to be accreted into income over the remaining life of the asset. Recoveries of amounts previously written off relating to improvements in cash flows after the date of adoption should be recorded in earnings when received. The Company is currently evaluating this guidance to determine the impact on its consolidated financial position, results of operations or cash flows. In August 2016, the FASB issued ASU No. 2016-15, "Statement of cash flows (Topic 230): Classification of certain cash receipts and cash payments." The objective of this guidance is to reduce the diversity in practice in how certain cash receipts and cash payments are presented and classified in the statement of cash flows under Topic 230, Statement of Cash Flows, and other Topics. This ASU addresses the following eight specific cash flow issues: Debt prepayment or debt extinguishment costs; settlement of zero-coupon debt instruments or other debt instruments with coupon interest rates that are insignificant in relation to the effective interest rate of the borrowing; contingent consideration payments made after a business combination; proceeds from the settlement of insurance claims; proceeds from the settlement of corporate-owned life insurance policies (COLIs) (including bank-owned life insurance policies (BOLIs)); distributions received from equity method investees; beneficial interests in securitization transactions; and separately identifiable cash flows and application of the predominance principle. The amendments in this Update are effective for public business entities for fiscal years beginning after December 15, 2017, and interim periods within those fiscal years. Early adoption is permitted, including adoption in an interim period. The amendments in this ASU should be applied using a retrospective transition method to each period presented. The Company is currently evaluating this guidance to determine the impact on its consolidated financial position, results of operations or cash flows. In October 2016, the FASB issued ASU No. 2016-16, "Income Taxes (Topic 740): Intra-Entity Transfers of Assets Other Than Inventory." The objective of issuing this ASU is to improve the accounting for the income tax consequences of intra-entity transfers of assets other than inventory. Current GAAP prohibits the recognition of current and deferred income taxes for an intra-entity asset transfer until the asset has been sold to an outside party. This prohibition on recognition is an exception to the principle of comprehensive recognition of current and deferred income taxes in GAAP. As such, the Board decided that an entity should recognize the income tax consequences of an intra-entity transfer of an asset other than inventory when the transfer occurs. Consequently, the amendments in this guidance eliminate the exception for an intra-entity transfer of an asset other than inventory. For public business entities, the amendments in this guidance are effective for annual reporting periods beginning after December 15, 2017, including interim reporting periods within those annual reporting periods. Early adoption is permitted for all entities as of the beginning of an annual reporting period for which financial statements (interim or annual) have not been issued or made available for issuance. That is, earlier adoption should be in the first interim period if an entity issues interim financial statements. The Company is currently evaluating this guidance to determine the impact on its consolidated financial position, results of operations or cash flows. In October 2016, the FASB issued ASU No. 2016-17, "Consolidation (Topic 810): Interests Held through Related Parties That Are under Common Control." This ASU is being issued to amend the consolidation guidance in ASU 2015-02 "Amendments to the Consolidated Analysis (ASC 810, Consolidations)" on how a reporting entity that is the single decision maker of a VIE should treat indirect interests in the entity held through related parties that are under common control with the reporting entity when determining whether it is the primary beneficiary of that VIE. The amendments in this ASU are effective for public business entities for fiscal years beginning after December 15, 2016, including interim periods within those fiscal years. Early adoption is permitted, including adoption in an interim period. If an entity early adopts the amendments in an interim period, any adjustments should be reflected as of the beginning of the fiscal year that includes that interim period. Entities that have not yet adopted the amendments in ASU 2015-02 are required to adopt the amendments in this ASU at the same time they adopt the amendments in ASU 2015-02 and should apply the same transition method elected for the application of ASU 2015-02. Entities that already have adopted the amendments in ASU 2015-02 are required to apply the amendments in this ASU retrospectively to all relevant prior periods beginning with the fiscal year in which the amendments in ASU 2015- 02 initially were applied. The Company is currently evaluating this guidance to determine the impact on its consolidated financial position, results of operations or cash flows. In November 2016, the FASB issued ASU No. 2016-18, "Statement of Cash Flows (Topic 230): Restricted Cash (a consensus of the FASB Emerging Issues Task Force)." The amendments in this ASU require that a statement of cash flows explain the change during the period in the total of cash, cash equivalents, and amounts generally described as restricted cash or restricted cash equivalents. Therefore, amounts generally described as restricted cash and restricted cash equivalents should be included with cash and cash equivalents when reconciling the beginning-of-period and end-of-period total amounts shown on the statement of cash flows. The amendments in this ASU do not provide a definition of restricted cash or restricted cash equivalents. The amendments in this ASU are effective for public business entities for fiscal years beginning after December 15, 2017, and interim periods within those fiscal years. Early adoption is permitted, including adoption in an interim period. If an entity early adopts the amendments in an interim period, any adjustments should be reflected as of the beginning of the fiscal year that includes that interim period. The amendments in this ASU should be applied using a retrospective transition method to each period presented. The Company is currently evaluating this guidance to determine the impact on its consolidated financial position, results of operations or cash flows.

Investment Securities (Tables)

Investment Securities (Tables)	12 Months Ended
	Dec. 31, 2016
Investments, Debt and Equity Securities [Abstract]
Summary of Amortized Cost, Gross Unrealized Gains and Losses and Approximate Fair Values of Securities Available for Sale	The amortized cost, gross unrealized gains and losses and approximate fair values of securities available for sale are as follows: Amortized Cost Unrealized Fair Value December 31, 2016 Gains Losses (Dollars in thousands) Available for sale: U.S. Government agencies and sponsored enterprises obligations $ 16,512 $ 76 $ 274 $ 16,314 U.S. Government agencies and sponsored enterprises mortgage-backed securities 566,377 1,760 9,691 558,446 State and municipal obligations 28,109 148 578 27,679 Asset-backed securities 574,521 3,852 550 577,823 Corporate bonds and other debt securities 560,191 4,490 5,387 559,294 Preferred stock and other equity securities 137,228 814 1,164 136,878 Total available for sale $ 1,882,938 $ 11,140 $ 17,644 $ 1,876,434 Amortized Cost Unrealized Fair Value December 31, 2015 Gains Losses (Dollars in thousands) Available for sale: U.S. Government agencies and sponsored enterprises obligations $ 20,930 $ 100 $ 142 $ 20,888 U.S. Government agencies and sponsored enterprises mortgage-backed securities 392,123 2,587 1,595 393,115 State and municipal obligations 2,041 174 — 2,215 Asset-backed securities 503,240 383 9,689 493,934 Corporate bonds and other debt securities 450,489 1,596 7,190 444,895 Preferred stock and other equity securities 171,170 1,153 2,748 169,575 Total available for sale $ 1,539,993 $ 5,993 $ 21,364 $ 1,524,622
Schedule of Amortized Cost and Estimated Fair Value of Securities Available for Sale	The amortized cost and estimated fair value of securities available for sale, by contractual maturity, are as follows: Amortized Cost Fair Value December 31, 2016 (Dollars in thousands) Available for sale: Due in one year or less $ — $ — Due after one year through five years 182,333 182,132 Due after five years through ten years 104,086 102,346 Due after ten years 275,813 277,005 U.S. Government agencies and sponsored enterprises obligations, mortgage-backed securities and tax-exempt mortgage securities, and asset-backed securities 1,183,478 1,178,073 Preferred stock and other equity securities 137,228 136,878 Total available for sale $ 1,882,938 $ 1,876,434
Summary of Estimated Fair Values and Gross Unrealized Losses on Investment Securities Available for Sale	The following tables present the estimated fair values and gross unrealized losses on investment securities available for sale, aggregated by investment category and length of time individual securities have been in a continuous unrealized loss position as of the periods presented: Less than 12 Months 12 Months or More Total December 31, 2016 Fair Value Unrealized Loss Fair Value Unrealized Loss Fair Value Unrealized Loss (Dollars in thousands) Available for sale: U.S. Government agencies and sponsored enterprises obligations $ 11,577 $ 274 $ — $ — $ 11,577 $ 274 U.S. Government agencies and sponsored enterprises mortgage-backed securities 372,145 9,261 11,781 430 383,926 9,691 State and municipal obligations 25,490 578 — — 25,490 578 Asset-backed securities 11,309 21 34,855 529 46,164 550 Corporate bonds and other debt securities 179,925 3,042 77,934 2,345 257,859 5,387 Preferred stock and other equity securities 49,996 1,144 5,123 20 55,119 1,164 Total available for sale $ 650,442 $ 14,320 $ 129,693 $ 3,324 $ 780,135 $ 17,644 Less than 12 Months 12 Months or More Total December 31, 2015 Fair Value Unrealized Loss Fair Value Unrealized Loss Fair Value Unrealized Loss (Dollars in thousands) Available for sale: U.S. Government agencies and sponsored enterprises obligations $ 15,687 $ 142 $ — $ — $ 15,687 $ 142 U.S. Government agencies and sponsored enterprises mortgage-backed securities 225,109 1,391 12,584 204 237,693 1,595 State and municipal obligations — — — — — — Asset-backed securities 354,912 6,290 78,112 3,399 433,024 9,689 Corporate bonds and other debt securities 347,302 7,190 — — 347,302 7,190 Preferred stock and other equity securities 96,543 1,740 19,000 1,008 115,543 2,748 Total available for sale $ 1,039,553 $ 16,753 $ 109,696 $ 4,611 $ 1,149,249 $ 21,364
Summary of Gross Realized Gains and Losses on Sale of Securities Available for Sale	Gross realized gains and losses on the sale of securities available for sale are shown below. The cost of securities sold is based on the specific identification method. Years Ended December 31, 2016 2015 2014 (Dollars in thousands) Gross realized gains $ 3,645 $ 2,065 $ 14,328 Gross realized losses (2,066 ) (1,047 ) (2,281 ) Net realized gains $ 1,579 $ 1,018 $ 12,047

Loans, Net (Tables)

Loans, Net (Tables)	12 Months Ended
	Dec. 31, 2016
Receivables [Abstract]
Schedule of Loans by Portfolio and Segment	The following tables summarize the Company’s loans by portfolio and segment as of the periods presented, net of deferred fees, costs, premiums and discounts: December 31, 2016 ASC 310-30 Loans Non-ASC 310-30 Loans New Loans (1) Total (Dollars in thousands) Real estate loans: Commercial real estate $ 130,628 $ 38,786 $ 1,438,427 $ 1,607,841 Owner-occupied commercial real estate — 18,477 769,814 788,291 1-4 single family residential 31,476 66,854 2,012,856 2,111,186 Construction, land and development 17,657 6,338 651,253 675,248 Home equity loans and lines of credit — 42,295 49,819 92,114 Total real estate loans $ 179,761 $ 172,750 $ 4,922,169 $ 5,274,680 Other loans: Commercial and industrial $ 15,147 $ 5,815 $ 1,332,869 $ 1,353,831 Consumer 1,681 334 4,368 6,383 Total other loans 16,828 6,149 1,337,237 1,360,214 Total loans held in portfolio $ 196,589 $ 178,899 $ 6,259,406 $ 6,634,894 Allowance for loan losses (37,897 ) Loans held in portfolio, net $ 6,596,997 December 31, 2015 ASC 310-30 Loans Non-ASC 310-30 Loans New Loans (1) Total (Dollars in thousands) Real estate loans: Commercial real estate $ 247,628 $ 55,985 $ 998,141 $ 1,301,754 Owner-occupied commercial real estate — 21,101 524,728 545,829 1-4 single family residential 40,922 84,111 1,541,255 1,666,288 Construction, land and development 28,017 6,338 537,494 571,849 Home equity loans and lines of credit — 49,407 30,945 80,352 Total real estate loans $ 316,567 $ 216,942 $ 3,632,563 $ 4,166,072 Other loans: Commercial and industrial $ 36,783 $ 9,312 $ 972,803 $ 1,018,898 Consumer 2,390 430 5,397 8,217 Total other loans 39,173 9,742 978,200 1,027,115 Total loans held in portfolio $ 355,740 $ 226,684 $ 4,610,763 $ 5,193,187 Allowance for loan losses (29,126 ) Loans held in portfolio, net $ 5,164,061 (1) Balance includes $3.2 million and $7.1 million of deferred fees, costs, and premium and discount as of December 31, 2016 and 2015 , respectively.
Summary of Changes in Accretable Discount for ASC 310-30 Loans	Changes in accretable discount for ASC 310-30 loans were as follows: Years Ended December 31, 2016 2015 2014 (Dollars in thousands) Balance at January 1, $ 144,152 $ 156,197 $ 148,501 Additions to accretable discount from GFB acquisition — — 40,444 Accretion (54,427 ) (55,019 ) (61,281 ) Reclassifications from non-accretable difference (28,735 ) 42,974 28,533 Balance at December 31, $ 60,990 $ 144,152 $ 156,197

Allowance for Loan Losses (Tabl

Allowance for Loan Losses (Tables)	12 Months Ended
	Dec. 31, 2016
Receivables [Abstract]
Summary of Changes in Allowance for Loan Losses by Loan Class and Portfolio Segment	Changes in the ALL by loan portfolio and segment for the years ended December 31, 2016 , 2015 , and 2014 are as follows: Commercial Real Estate Owner- Occupied Commercial Real Estate 1- 4 Single Family Residential Construction, Land and Development Home Equity Loans and Lines of Credit Commercial and Industrial Consumer Total (Dollars in thousands) Balance at January 1, 2016 $ 8,450 $ 2,243 $ 6,425 $ 3,404 $ 483 $ 7,665 $ 456 $ 29,126 Provision (credit) for ASC 310-30 loans (124 ) — 3 (128 ) — (108 ) (156 ) (513 ) Provision (credit) for non-ASC 310-30 loans (1,512 ) (401 ) (31 ) 11 (21 ) 316 8 (1,630 ) Provision (credit) for New loans 2,024 756 982 1,351 213 4,440 32 9,798 Total provision 388 355 954 1,234 192 4,648 (116 ) 7,655 Charge-offs for ASC 310-30 loans (429 ) — (31 ) (33 ) — (79 ) (106 ) (678 ) Charge-offs for non-ASC 310-30 loans — (1 ) — — (35 ) — (6 ) (42 ) Charge-offs for New loans — — — — — — — — Total charge-offs (429 ) (1 ) (31 ) (33 ) (35 ) (79 ) (112 ) (720 ) Recoveries for ASC 310-30 loans 910 — 31 72 — 11 — 1,024 Recoveries for non-ASC 310-30 loans 804 — — — 8 — — 812 Recoveries for New loans — — — — — — — — Total recoveries 1,714 — 31 72 8 11 — 1,836 Ending ALL balance ASC 310-30 loans 2,255 — 29 239 — 277 144 2,944 Non-ASC 310-30 loans 376 61 301 47 243 376 6 1,410 New loans 7,492 2,536 7,049 4,391 405 11,592 78 33,543 Balance at December 31, 2016 $ 10,123 $ 2,597 $ 7,379 $ 4,677 $ 648 $ 12,245 $ 228 $ 37,897 Commercial Real Estate Owner- Occupied Commercial Real Estate 1- 4 Single Family Residential Construction, Land and Development Home Equity Loans and Lines of Credit Commercial and Industrial Consumer Total (Dollars in thousands) Balance at January 1, 2015 $ 8,206 $ 1,020 $ 4,740 $ 2,456 $ 355 $ 5,745 $ 358 $ 22,880 Provision (credit) for ASC 310-30 loans (1,487 ) — (37 ) (681 ) — (39 ) 175 (2,069 ) Provision (credit) for non-ASC 310-30 loans 589 405 46 (39 ) 138 11 6 1,156 Provision (credit) for New loans 1,012 818 2,066 1,317 122 2,417 (16 ) 7,736 Total provision 114 1,223 2,075 597 260 2,389 165 6,823 Charge-offs for ASC 310-30 loans (270 ) — (436 ) (56 ) — (643 ) (60 ) (1,465 ) Charge-offs for non-ASC 310-30 loans — — (128 ) — (132 ) — (8 ) (268 ) Charge-offs for New loans — — — — — (15 ) — (15 ) Total charge-offs (270 ) — (564 ) (56 ) (132 ) (658 ) (68 ) (1,748 ) Recoveries for ASC 310-30 loans 400 — 174 407 — 177 1 1,159 Recoveries for non-ASC 310-30 loans — — — — — — — — Recoveries for New loans — — — — — 12 — 12 Total recoveries 400 — 174 407 — 189 1 1,171 Ending ALL balance ASC 310-30 loans 1,898 — 26 328 — 453 406 3,111 Non-ASC 310-30 loans 1,084 463 332 36 291 60 4 2,270 New loans 5,468 1,780 6,067 3,040 192 7,152 46 23,745 Balance at December 31, 2015 $ 8,450 $ 2,243 $ 6,425 $ 3,404 $ 483 $ 7,665 $ 456 $ 29,126 Commercial Real Estate Owner- Occupied Commercial Real Estate 1- 4 Single Family Residential Construction, Land and Development Home Equity Loans and Lines of Credit Commercial and Industrial Consumer Total (Dollars in thousands) Balance at January 1, 2014 $ 4,458 $ 376 $ 1,443 $ 1,819 $ 265 $ 6,198 $ 174 $ 14,733 Provision (credit) for ASC 310-30 loans 735 — 271 107 — (716 ) 245 642 Provision (credit) for non-ASC 310-30 loans 490 53 362 75 442 67 35 1,524 Provision (credit) for New loans 2,678 591 2,695 895 (56 ) 1,229 45 8,077 Total provision 3,903 644 3,328 1,077 386 580 325 10,243 Charge-offs for ASC 310-30 loans (270 ) — (31 ) (1,244 ) — (678 ) (113 ) (2,336 ) Charge-offs for non-ASC 310-30 loans — — — — (296 ) (24 ) (29 ) (349 ) Charge-offs for New loans — — — (6 ) — (348 ) — (354 ) Total charge-offs (270 ) — (31 ) (1,250 ) (296 ) (1,050 ) (142 ) (3,039 ) Recoveries for ASC 310-30 loans 115 — — 810 — 13 1 939 Recoveries for non-ASC 310-30 loans — — — — — — — — Recoveries for New loans — — — — — 4 — 4 Total recoveries 115 — — 810 — 17 1 943 Ending ALL balance ASC 310-30 loans 3,255 — 325 658 — 958 290 5,486 Non-ASC 310-30 loans 495 58 414 75 285 49 6 1,382 New loans 4,456 962 4,001 1,723 70 4,738 62 16,012 Balance at December 31, 2014 $ 8,206 $ 1,020 $ 4,740 $ 2,456 $ 355 $ 5,745 $ 358 $ 22,880
Summary of Aging Analysis of Recorded Investment for Loans by Portfolio and Segment	The following tables present an aging analysis of the recorded investment for delinquent loans by portfolio and segment (excluding loans accounted for under ASC 310-30): Accruing December 31, 2016 30 to 59 Days Past Due 60 to 89 Days Past Due 90 Days or More Past Due Non- Accrual Total (Dollars in thousands) New loans: Real estate loans: Commercial real estate $ — $ — $ — $ 581 $ 581 Owner-occupied commercial real estate — — — — — 1-4 single family residential 1,593 — — 1,821 3,414 Construction, land and development 449 — — — 449 Home equity loans and lines of credit 255 — — 243 498 Total real estate loans $ 2,297 $ — $ — $ 2,645 $ 4,942 Other loans: Commercial and industrial $ — $ — $ — $ — $ — Consumer — — — — — Total other loans — — — — — Total new loans $ 2,297 $ — $ — $ 2,645 $ 4,942 Acquired loans: Real estate loans: Commercial real estate $ — $ — $ — $ 4,720 $ 4,720 Owner-occupied commercial real estate 93 — — 2,502 2,595 1-4 single family residential 207 — — 2,728 2,935 Construction, land and development — — — — — Home equity loans and lines of credit 520 42 — 2,557 3,119 Total real estate loans $ 820 $ 42 $ — $ 12,507 $ 13,369 Other loans: Commercial and industrial $ — $ 128 $ — $ 325 $ 453 Consumer — — — — — Total other loans — 128 — 325 453 Total acquired loans $ 820 $ 170 $ — $ 12,832 $ 13,822 Accruing December 31, 2015 30 to 59 Days Past Due 60 to 89 Days Past Due 90 Days or More Past Due Non- Accrual Total (Dollars in thousands) New loans: Real estate loans: Commercial real estate $ — $ — $ — $ — $ — Owner-occupied commercial real estate — 113 — — 113 1-4 single family residential 9,439 869 — 1,454 11,762 Construction, land and development 467 — — — 467 Home equity loans and lines of credit 64 — — — 64 Total real estate loans $ 9,970 $ 982 $ — $ 1,454 $ 12,406 Other loans: Commercial and industrial $ — $ — $ — $ — $ — Consumer — — — — — Total other loans — — — — — Total new loans $ 9,970 $ 982 $ — $ 1,454 $ 12,406 Acquired Loans: Real estate loans: Commercial real estate $ 63 $ — $ — $ 5,282 $ 5,345 Owner-occupied commercial real estate — 95 — 2,247 2,342 1-4 single family residential 1,393 697 — 3,016 5,106 Construction, land and development — — — — — Home equity loans and lines of credit 490 97 — 2,295 2,882 Total real estate loans $ 1,946 $ 889 $ — $ 12,840 $ 15,675 Other loans: Commercial and industrial $ 90 $ — $ — $ 877 $ 967 Consumer — — — 23 23 Total other loans 90 — — 900 990 Total acquired loans $ 2,036 $ 889 $ — $ 13,740 $ 16,665
Summary of Commercial Non-ASC 310-30 and New Loans by Key Indicators of Credit Quality	The following table summarizes the Company’s commercial Non-ASC 310-30 and New loans by key indicators of credit quality. Loans accounted for under ASC 310-30 are excluded from the following analysis because their related allowance is determined by loan pool performance: December 31, 2016 Pass Special Mention Substandard Doubtful (Dollars in thousands) New loans: Commercial real estate $ 1,435,633 $ — $ 2,794 $ — Owner-occupied commercial real estate 769,640 174 — — Construction, land and development 651,253 — — — Commercial and industrial 1,332,869 — — — Total new loans $ 4,189,395 $ 174 $ 2,794 $ — Acquired loans: Commercial real estate $ 33,705 $ — $ 5,081 $ — Owner-occupied commercial real estate 18,388 — 89 — Construction, land and development 6,338 — — — Commercial and industrial 5,134 — 681 — Total acquired loans $ 63,565 $ — $ 5,851 $ — December 31, 2015 Pass Special Substandard Doubtful (Dollars in thousands) New loans: Commercial real estate $ 998,141 $ — $ — $ — Owner-occupied commercial real estate 524,728 — — — Construction, land and development 537,494 — — — Commercial and industrial 972,803 — — — Total new loans $ 3,033,166 $ — $ — $ — Acquired loans: Commercial real estate $ 50,328 $ — $ 5,657 $ — Owner-occupied commercial real estate 18,854 — 2,247 — Construction, land and development 6,338 — — — Commercial and industrial 6,715 1,352 1,245 — Total acquired loans $ 82,235 $ 1,352 $ 9,149 $ —
Summary of Loans Based on Method for Determining Allowance	The following table shows the Company’s investment in loans disaggregated based on the method of evaluating impairment: Loans - Recorded Investment Allowance for Credit Loss December 31, 2016 Individually Evaluated for Impairment Collectively Evaluated for Impairment ASC 310- 30 Loans Individually Evaluated for Impairment Collectively Evaluated for Impairment ASC 310- 30 Loans (Dollars in thousands) New loans: Real estate loans: Commercial real estate $ 581 $ 1,437,846 $ — $ 221 $ 7,271 $ — Owner-occupied commercial real estate — 769,814 — — 2,536 — 1-4 single family residential 524 2,012,332 — — 7,049 — Construction, land and development — 651,253 — — 4,391 — Home equity loans and lines of credit 66 49,753 — 66 339 — Total real estate loans $ 1,171 $ 4,920,998 $ — $ 287 $ 21,586 $ — Other loans Commercial and industrial $ — $ 1,332,869 $ — $ — $ 11,592 $ — Consumer — 4,368 — — 78 — Total other loans $ — $ 1,337,237 $ — $ — $ 11,670 $ — Acquired loans: Real estate loans: Commercial real estate $ 4,720 $ 34,066 $ 130,628 $ 175 $ 201 $ 2,255 Owner-occupied commercial real estate — 18,477 — — 61 — 1-4 single family residential 1,612 65,242 31,476 88 213 29 Construction, land and development — 6,338 17,657 — 47 239 Home equity loans and lines of credit 1,050 41,245 — — 243 — Total real estate loans $ 7,382 $ 165,368 $ 179,761 $ 263 $ 765 $ 2,523 Other loans Commercial and industrial 325 5,490 15,147 325 51 277 Consumer — 334 1,681 — 6 144 Total other loans $ 325 $ 5,824 $ 16,828 $ 325 $ 57 $ 421 Loans - Recorded Investment Allowance for Credit Loss December 31, 2015 Individually Evaluated for Impairment Collectively Evaluated for Impairment ASC 310- 30 Loans Individually Evaluated for Impairment Collectively Evaluated for Impairment ASC 310- 30 Loans (Dollars in thousands) New loans: Real estate loans: Commercial real estate $ — $ 998,141 $ — $ — $ 5,468 $ — Owner-occupied commercial real estate — 524,728 — — 1,780 — 1-4 single family residential — 1,541,255 — — 6,067 — Construction, land and development — 537,494 — — 3,040 — Home equity loans and lines of credit — 30,945 — — 192 — Total real estate loans $ — $ 3,632,563 $ — $ — $ 16,547 $ — Other loans Commercial and industrial — 972,803 — — 7,152 — Consumer — 5,397 — — 46 — Total other loans $ — $ 978,200 $ — $ — $ 7,198 $ — Acquired Loans: Real estate loans: Commercial real estate $ 5,282 $ 50,703 $ 247,628 $ 829 $ 255 $ 1,898 Owner-occupied commercial real estate 2,244 18,857 — 399 64 — 1-4 single family residential 263 83,848 40,922 — 332 26 Construction, land and development — 6,338 28,017 — 36 328 Home equity loans and lines of credit 916 48,491 — — 291 — Total real estate loans $ 8,705 $ 208,237 $ 316,567 $ 1,228 $ 978 $ 2,252 Other loans Commercial and industrial 877 8,435 36,783 — 60 453 Consumer — 430 2,390 — 4 406 Total other loans $ 877 $ 8,865 $ 39,173 $ — $ 64 $ 859
Summary of Company's Impaired Loans Evaluated for Specific Reserves	The following tables set forth certain information regarding the Company’s impaired loans (excluding loans accounted for under ASC 310-30) that were evaluated for specific reserves: Impaired Loans - With Allowance Impaired Loans - With no Allowance December 31, 2016 Recorded Investment Unpaid Principal Balance Related Allowance Recorded Investment Unpaid Principal Balance (Dollars in thousands) New loans: Real estate loans: Commercial real estate $ 581 $ 581 $ 221 $ — $ — Owner-occupied commercial real estate — — — — — 1-4 single family residential — — — 524 524 Construction, land and development — — — — — Home equity loans and lines of credit 66 66 66 — — Total real estate loans $ 647 $ 647 $ 287 $ 524 $ 524 Other loans Commercial and industrial — — — — — Consumer — — — — — Total other loans $ — $ — $ — $ — $ — Acquired loans: Real estate loans: Commercial real estate $ 630 $ 650 $ 175 $ 4,090 $ 5,397 Owner-occupied commercial real estate — — — — — 1-4 single family residential 565 512 88 1,047 1,047 Construction, land and development — — — — — Home equity loans and lines of credit — — — 1,050 1,415 Total real estate loans $ 1,195 $ 1,162 $ 263 $ 6,187 $ 7,859 Other loans Commercial and industrial 325 325 325 — — Consumer — — — — — Total other loans $ 325 $ 325 $ 325 $ — $ — Impaired Loans - With Allowance Impaired Loans - With no Allowance December 31, 2015 Recorded Investment Unpaid Principal Balance Related Allowance Recorded Investment Unpaid Principal Balance (Dollars in thousands) New loans: Real estate loans: Commercial real estate $ — $ — $ — $ — $ — Owner-occupied commercial real estate — — — — — 1-4 single family residential — — — — — Construction, land and development — — — — — Home equity loans and lines of credit — — — — — Total real estate loans $ — $ — $ — $ — $ — Other loans Commercial and industrial — — — — — Consumer — — — — — Total other loans $ — $ — $ — $ — $ — Acquired loans: Real estate loans: Commercial real estate $ 4,555 $ 4,924 $ 829 $ 727 $ 750 Owner-occupied commercial real estate 2,244 2,310 399 — — 1-4 single family residential — — — 263 264 Construction, land and development — — — — — Home equity loans and lines of credit — — — 916 1,048 Total real estate loans $ 6,799 $ 7,234 $ 1,228 $ 1,906 $ 2,062 Other loans Commercial and industrial — — — 877 1,825 Consumer — — — — — Total other loans $ — $ — $ — $ 877 $ 1,825
Summary of Impaired Loans Average Recorded Investment and Interest Income Recognized	Years Ended December 31, 2016 2015 Average Recorded Investment Interest Income Recognized Average Recorded Investment Interest Income Recognized (Dollars in thousands) Impaired loans with no related allowance: Real estate loans: Commercial real estate $ 4,245 $ — $ 414 $ — Owner-occupied commercial real estate — — — — 1-4 single family residential 816 — 133 — Construction, land and development — — — — Home equity loans and lines of credit 1,272 — 925 — Total real estate loans $ 6,333 $ — $ 1,472 $ — Other loans: Commercial and industrial — — 627 — Consumer — — — — Total other loans $ — $ — $ 627 $ — Impaired loans with an allowance: Real estate loans: Commercial real estate $ 959 $ — $ 4,789 $ — Owner-occupied commercial real estate — — 1,144 — 1-4 single family residential 424 — — — Construction, land and development — — — — Home equity loans and lines of credit 44 — — — Total real estate loans $ 1,427 $ — $ 5,933 $ — Other loans: Commercial and industrial 170 — — — Consumer — — — — Total other loans $ 170 $ — $ — $ —

Covered Assets and Loss Shari33

Covered Assets and Loss Sharing Agreements (Tables)	12 Months Ended
	Dec. 31, 2016
Text Block [Abstract]
Summary of Changes in Loss Share Indemnification Asset	Changes in the loss share indemnification asset for the periods presented were as follows: Years Ended December 31, 2016 2015 2014 (Dollars in thousands) Balance at beginning of period $ — $ 63,168 $ 87,229 Termination of FDIC loss sharing agreements — (63,168 ) — Reimbursable expenses — — 4,999 Amortization — — (24,653 ) Income resulting from impairment and charge-off of covered assets, net — — 3,948 Expense resulting from recoupment and disposition of covered assets, net — — (3,627 ) FDIC claims submissions — — (4,728 ) Balance at end of period $ — $ — $ 63,168
Summary of Changes in Clawback Liability Included Other Liabilities	The following table summarizes the changes in the clawback liability, included in other liabilities, for the periods presented: Years Ended December 31, 2016 2015 2014 (Dollars in thousands) Balance at beginning of period $ — $ 13,846 $ 11,753 Termination of FDIC loss sharing agreements — (13,846 ) — Amortization impact — — 748 Remeasurement impact — — 1,345 Balance at end of period $ — $ — $ 13,846

Premises and Equipment (Tables)

Premises and Equipment (Tables)	12 Months Ended
	Dec. 31, 2016
Property, Plant and Equipment [Abstract]
Components of Premises and Equipment	The major components of premises and equipment are as follows: December 31, 2016 2015 (Dollars in thousands) Land $ 7,624 $ 8,256 Building and improvements 24,653 25,413 Furniture, fixtures and equipment 13,197 11,836 Leasehold improvements 4,454 2,978 Construction in Process 525 240 Software 3,021 2,859 Total 53,474 51,582 Less: Accumulated depreciation (16,822 ) (14,628 ) Total premises and equipment, net $ 36,652 $ 36,954
Schedule of Future Minimum Rental Payments Under Non-Cancellable Operating Leases	As of December 31, 2016, future minimum lease payments under non-cancellable operating leases were as follows (in thousands): Years Ended December 31, 2017 2018 2019 2020 2021 Thereafter Total Future minimum lease payments $ 5,128 $ 4,994 $ 4,597 $ 4,336 $ 3,118 $ 14,737 $ 36,910

Goodwill and Intangibles (Table

Goodwill and Intangibles (Tables)	12 Months Ended
	Dec. 31, 2016
Goodwill and Intangible Assets Disclosure [Abstract]
Summary of Goodwill and Other Intangible Assets	Goodwill and core deposit intangibles are summarized as follows: December 31, 2016 2015 (Dollars in thousands) Goodwill $ 81,204 $ 81,204 Core deposit intangible 14,370 14,370 Less: Accumulated amortization (9,679 ) (8,490 ) Net core deposit intangible $ 4,691 $ 5,880
Estimated Amortization Expense for Core Deposit Intangible Assets to be Recognized	The estimated amount of amortization expense for core deposit intangible assets to be recognized over the next five fiscal years is as follows: 2017 2018 2019 2020 2021 (Dollars in thousands) Core deposit intangible $ 1,023 $ 1,023 $ 1,023 $ 491 $ 360

Derivatives (Tables)

Derivatives (Tables)	12 Months Ended
	Dec. 31, 2016
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Summary of Derivatives Outstanding Included in Other Assets and Liabilities	The following tables summarize the Company’s derivatives outstanding included in other assets and other liabilities in the accompanying consolidated balance sheets: Derivative Assets Derivative Liabilities December 31, 2016 Notional Fair Value Notional Fair Value (Dollars in thousands) Derivatives not designated as hedging instruments under ASC 815-10 Interest rate contracts—pay floating, receive fixed $ 708,426 $ 15,268 $ 182,848 $ 2,908 Interest rate contracts—pay fixed, receive floating 182,848 — 708,426 12,360 Total derivatives $ 891,274 $ 15,268 $ 891,274 $ 15,268 Derivative Assets Derivative Liabilities December 31, 2015 Notional Fair Value Notional Fair Value (Dollars in thousands) Derivatives not designated as hedging instruments under ASC 815-10 Interest rate contracts—pay floating, receive fixed $ 690,175 $ 21,553 $ 8,298 $ 2 Interest rate contracts—pay fixed, receive floating 8,298 — 690,175 21,551 Total derivatives $ 698,473 $ 21,553 $ 698,473 $ 21,553
Summary of Gross and Net Fair Values of Derivatives Outstanding Included in Other Liabilities	The following table summarizes the gross and net fair values of the Company’s derivatives outstanding with this counterparty included in other liabilities in the accompanying consolidated balance sheets: December 31, 2016 Gross amounts of recognized liabilities Gross amounts offset in the consolidated balance sheets Net amounts in the consolidated balance sheets (Dollars in thousands) Offsetting derivative liabilities Counterparty A—Interest rate contracts $ 15,268 $ (2,908 ) $ 12,360 Total $ 15,268 $ (2,908 ) $ 12,360 December 31, 2015 Gross amounts of recognized liabilities Gross amounts offset in the consolidated balance sheets Net amounts in the consolidated balance sheets (Dollars in thousands) Offsetting derivative liabilities Counterparty A—Interest rate contracts $ 21,553 $ (2 ) $ 21,551 Total $ 21,553 $ (2 ) $ 21,551

Deposits (Tables)

Deposits (Tables)	12 Months Ended
	Dec. 31, 2016
Banking and Thrift [Abstract]
Summary of Company's Deposits by Category	The following table sets forth the Company’s deposits by category: December 31, 2016 2015 (Dollars in thousands) Noninterest-bearing demand deposits $ 905,905 $ 637,047 Interest-bearing demand deposits 1,004,452 608,454 Interest-bearing NOW accounts 398,823 347,832 Savings and money market accounts 2,780,697 1,979,132 Time deposits 2,215,794 1,858,173 Total deposits $ 7,305,671 $ 5,430,638 Time deposits $100,000 and greater $ 1,675,162 $ 1,323,520 Time deposits greater than $250,000 843,683 587,590

FHLB and Other Borrowings (Tabl

FHLB and Other Borrowings (Tables)	12 Months Ended
	Dec. 31, 2016
Federal Home Loan Banks [Abstract]
FHLB Advances and Other Borrowings Outstanding	Advances from the FHLB and other borrowings outstanding for the periods presented are as follows: December 31, 2016 Range of Contractual Interest Rates December 31, 2015 Range of Contractual Interest Rates (Dollars in thousands) Repayable during the years ending December 31, 2017 $ 473,870 0.62% - 4.35% $ 843,754 0.35% - 1.35% 2018 50,000 1.53 % 72,500 4.05% - 4.35% 2019 and beyond 200,000 1.34% - 1.61% 50,000 1.53 % Total contractual outstanding 723,870 966,254 Fair value adjustment 846 3,482 Total FHLB advances and securities sold under repurchase agreements 724,716 969,736 Retail repurchase agreements 26,387 13,447 Total borrowings $ 751,103 $ 983,183

Regulatory Capital (Tables)

Regulatory Capital (Tables)	12 Months Ended
	Dec. 31, 2016
Banking and Thrift [Abstract]
Regulatory Capital Levels	The Bank’s and Company’s regulatory capital levels are as follows: Actual Minimum Capital Requirement Minimum To Be Well Capitalized Amount Ratio Amount Ratio Amount Ratio (Dollars in thousands) December 31, 2016 Tier 1 leverage ratio Company $ 891,584 10.3 % $ 346,518 4.0 % $ 433,148 5.0 % Bank 795,207 9.3 % 340,856 4.0 % 426,070 5.0 % Common equity tier 1 capital ratio Company 891,584 11.9 % 336,328 4.5 % 485,807 6.5 % Bank 795,207 10.9 % 329,194 4.5 % 475,503 6.5 % Tier 1 risk-based capital ratio Company 891,584 11.9 % 448,437 6.0 % 597,916 8.0 % Bank 795,207 10.9 % 438,926 6.0 % 585,234 8.0 % Total risk-based capital ratio Company 930,821 12.5 % 597,916 8.0 % 747,395 10.0 % Bank 834,679 11.4 % 585,234 8.0 % 731,543 10.0 % Actual Minimum Capital Requirement Minimum To Be Well Capitalized Amount Ratio Amount Ratio Amount Ratio (Dollars in thousands) December 31, 2015 Tier 1 leverage ratio Company $ 717,229 10.3 % $ 278,319 4.0 % $ 347,899 5.0 % Bank 678,608 9.9 % 273,721 4.0 % 342,151 5.0 % Common equity tier 1 capital ratio Company 717,229 12.1 % 267,511 4.5 % 386,405 6.5 % Bank 678,608 11.6 % 262,378 4.5 % 378,991 6.5 % Tier 1 risk-based capital ratio Company 717,229 12.1 % 356,682 6.0 % 475,576 8.0 % Bank 678,608 11.6 % 349,838 6.0 % 466,450 8.0 % Total risk-based capital ratio Company 717,229 12.1 % 475,576 8.0 % 594,470 10.0 % Bank 678,608 11.6 % 466,450 8.0 % 583,063 10.0 %

Accumulated Other Comprehensi40

Accumulated Other Comprehensive Income (Tables)	12 Months Ended
	Dec. 31, 2016
Equity [Abstract]
Schedule of Changes in Accumulated Other Comprehensive Income	Changes in AOCI for the periods indicated are summarized as follows: Year Ended December 31, 2016 Before Tax Tax Effect Net of Tax (Dollars in thousands) Balance at beginning of period $ (15,371 ) $ 5,928 $ (9,443 ) Unrealized gain (loss) on investment securities available for sale: Net unrealized holdings gain (loss) arising during the period 11,582 (4,467 ) 7,115 Amounts reclassified to (gain) loss on investment securities (2,715 ) 1,048 (1,667 ) Balance at end of period $ (6,504 ) $ 2,509 $ (3,995 ) Year Ended December 31, 2015 Before Tax Tax Effect Net of Tax (Dollars in thousands) Balance at beginning of period $ 1,106 $ (427 ) $ 679 Unrealized gain (loss) on investment securities available for sale: Net unrealized holdings gain (loss) arising during the period (13,997 ) 5,399 (8,598 ) Amounts reclassified to (gain) loss on investment securities (2,480 ) 956 (1,524 ) Balance at end of period $ (15,371 ) $ 5,928 $ (9,443 ) Year Ended December 31, 2014 Before Tax Tax Effect Net of Tax (Dollars in thousands) Balance at beginning of period $ (2,565 ) $ 990 $ (1,575 ) Unrealized gain (loss) on investment securities available for sale: Net unrealized holdings gain (loss) arising during the period 11,481 (4,430 ) 7,051 Amounts reclassified to (gain) loss on investment securities (7,810 ) 3,013 (4,797 ) Balance at end of period $ 1,106 $ (427 ) $ 679

Stockholders' Equity (Tables)

Stockholders' Equity (Tables)	12 Months Ended
	Dec. 31, 2016
Schedule of Activity of Warrants	The following table presents the activity during the year ended December 31, 2016 related to the Amended 2009 Warrants: Amended 2009 Warrants Warrants Weighted Average Exercise Price Aggregate Intrinsic Value Weighted Average Remaining Contractual Life (Years) (Dollars in thousands, except per share data) Outstanding at January 1, 2016 3,024,123 $ 26.42 Granted — — Exercised (338,196 ) 25.96 $ 2,821 Forfeited — — Expired — — Outstanding at December 31, 2016 2,685,927 26.48 56,993 2.87 Exercisable at December 31, 2016 1,582,449 25.23 35,564 2.87 Vested at December 31, 2016 2,685,927 26.48 56,993 2.87 Vested and expected to vest at December 31, 2016 2,685,927 26.48 56,993 2.87
2009 Warrants
Summary of Assumptions used to Calculate Fair Values	The assumptions used to calculate the fair values of the Original 2009 Warrants and Amended 2009 Warrants are summarized below: Original 2009 Warrants Immediately Prior to Modification Amended 2009 Warrants Immediately After Modification Expected volatility 30.0 % 30.0 % Expected dividend yield 2.5 % 2.5 % Expected term (years) 3.0 6.0 Risk-free interest rate 0.58 % 1.70 % Weighted average fair value (per warrant) $ 1.28 $ 2.49 Total fair value (in thousands) $ 4,226 $ 8,254

Stock-Based Compensation and 42

Stock-Based Compensation and Other Benefit Plans (Tables)	12 Months Ended
	Dec. 31, 2016
2009 Option plan
Schedule of Option Activity	Plan. The following tables present the activity during the year ended December 31, 2016 related to the 2009 Option Plan: 2009 Option Plan Options Weighted Average Exercise Price Aggregate Intrinsic Value Weighted Average Remaining Contractual Life (Years) (Dollars in thousands, except per share data) Outstanding at January 1, 2016 3,707,898 $ 20.67 Granted — — Exercised (549,928 ) 20.78 $ 9,547 Forfeited (49,984 ) 22.34 Expired (751 ) 22.97 Outstanding at December 31, 2016 3,107,235 20.62 84,138 4.69 Exercisable at December 31, 2016 2,937,302 20.55 79,745 4.52 Vested at December 31, 2016 2,937,302 20.55 79,745 4.52 Vested and expected to vest at December 31, 2016 3,107,236 20.62 84,138 4.69
Summary of Stock- based Compensation Expense	A summary of selected data related to stock-based compensation expense follows: 2009 Option Plan Years Ended December 31, 2016 2015 2014 (Dollars in thousands) Stock-based compensation expense $ 1,707 $ 2,239 $ 2,125 Tax benefit realized from stock awards exercised 3,622 1,618 — Fair value of stock-based awards that vested during the year 1,882 2,724 2,319 Amount of cash received from exercise of awards 11,427 8,163 — Total intrinsic value of awards exercised during the year 9,547 4,940 — 2009 Option Plan December 31, 2016 2015 2014 (Dollars in thousands) Unrecognized compensation expense related to stock-based compensation $ 569 $ 2,561 $ 4,949 Weighted-average life over which expense is expected to be recognized (years) 0.78 1.72 2.54
2009 Equity incentive plan
Summary of Assumptions used to Calculate Fair Values	A summary of assumptions used to calculate the fair values of the 2009 Option Plan awards is presented below: 2009 Option Plan Years Ended December 31, 2016 2015 2014 Expected volatility — % — % 33.6 - 36.7% Expected dividend yield — % — % 1.3 - 2.5% Expected term (years) — — 5.5 - 6.5 Risk-free interest rate — % — % 2.32 - 2.70% Weighted average grant date fair value $ — $ — $ 7.14
2010 Warrants
Summary of Assumptions used to Calculate Fair Values	A summary of assumptions used to calculate the fair values of the cancelled 2010 Warrants is presented below: Original 2010 Warrants Immediately Prior to Cancellation Original Expected volatility 30.0 % 30.0 % Expected dividend yield 2.5 % 2.5 % Expected term (years) 3.6 — Risk-free interest rate 1.06 % 1.06 % Weighted average fair value (per warrant) $ 0.70 $ — Total fair value (in thousands) $ 1,499 $ —
2013 Stock incentive plan
Schedule of Option Activity	The following tables present the activity during the year ended December 31, 2016 related to the 2013 Plan Options: 2013 Plan Options Options Weighted Average Exercise Price Aggregate Intrinsic Value Weighted Average Remaining Contractual Life (Years) (Dollars in thousands, except per share data) Outstanding at January 1, 2016 2,367,187 $ 20.37 Granted 80,000 29.98 Exercised (248,760 ) 20.85 $ 3,888 Forfeited (34,169 ) 23.03 Expired — — Outstanding at December 31, 2016 2,164,258 20.63 58,596 7.16 Exercisable at December 31, 2016 1,381,232 20.60 37,427 7.18 Vested at December 31, 2016 1,881,236 20.38 51,402 7.09 Vested and expected to vest at December 31, 2016 2,164,258 20.63 58,596 7.16
Summary of Assumptions used to Calculate Fair Values	A summary of assumptions used to calculate the fair values of the 2013 Plan Options awards is presented below: 2013 Plan Options Years Ended December 31, 2016 2015 2014 Expected volatility 24.7 % 31.1 % — % Expected dividend yield 1.25 % 1.25 % — % Expected term (years) 6.0 6.2 — Risk-free interest rate 1.37 % 1.63 % — % Weighted average grant date fair value $ 6.57 $ 7.38 $ —
Summary of Stock- based Compensation Expense	A summary of selected data related to stock-based compensation expense follows: 2013 Plan Options Years Ended December 31, 2016 2015 2014 (Dollars in thousands) Stock-based compensation expense $ 1,655 $ 2,002 $ 5,463 Tax benefit realized from stock awards exercised 1,380 158 — Grant date fair value of stock-based awards that vested during the year 4,313 1,181 914 Amount of cash received from exercise of option awards 5,186 714 — Total intrinsic value of awards exercised during the year 3,888 465 — 2013 Plan Options December 31, 2016 2015 2014 (Dollars in thousands) Unrecognized compensation expense related to stock-based compensation $ 333 $ 1,633 $ 1,918 Weighted-average life over which expense is expected to be recognized (years) 1.24 1.53 1.98
2016 Stock incentive plan
Schedule of Option Activity	The following tables present the activity during the year ended December 31, 2016 related to the 2016 Plan Options: 2016 Plan Options Options Weighted Average Exercise Price Aggregate Intrinsic Value Weighted Average Remaining Contractual Life (Years) (Dollars in thousands, except per share data) Outstanding at January 1, 2016 — $ — Granted 827,500 36.11 Exercised — — $ — Forfeited — — Expired — — Outstanding at December 31, 2016 827,500 36.11 9,591 9.61 Exercisable at December 31, 2016 — — — — Vested at December 31, 2016 — — — — Vested and expected to vest at December 31, 2016 827,500 36.11 9,591 9.61
Summary of Assumptions used to Calculate Fair Values	A summary of assumptions used to calculate the fair values of the 2016 Plan Options awards is presented below: 2016 Plan Options Expected volatility 24.0 % Expected dividend yield 1.25 % Expected term (years) 7.5 Risk-free interest rate 1.42 % Weighted average grant date fair value $ 8.62
Summary of Stock- based Compensation Expense	A summary of selected data related to stock-based compensation expense for the year ended December 31, 2016 are as follows: 2016 Plan Options (Dollars in thousands) Stock-based compensation expense $ 570 Unrecognized compensation expense related to stock-based compensation 6,563 Weighted-average life over which expense is expected to be recognized (years) 4.61

Basic and Diluted Earnings Pe43

Basic and Diluted Earnings Per Share (Tables)	12 Months Ended
	Dec. 31, 2016
Earnings Per Share [Abstract]
Computation of Basic and Diluted Earnings Per Share	The following table presents the computation of basic and diluted EPS: Years Ended December 31, 2016 2015 2014 (Dollars in thousands, except share and per share data) Net income available to common stockholders $ 99,916 $ 53,391 $ 22,372 Weighted average number of common shares—basic 40,716,588 41,300,979 38,054,158 Effect of dilutive securities: Employee stock-based compensation awards and warrants 2,508,576 1,992,628 204,158 Weighted average number of common shares—diluted 43,225,164 43,293,607 38,258,316 Basic earnings per share $ 2.45 $ 1.29 $ 0.59 Diluted earnings per share $ 2.31 $ 1.23 $ 0.58 Weighted average anti-dilutive warrants, stock options and RSUs 330,095 91,923 7,822,029

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2016
Income Tax Disclosure [Abstract]
Components of Expense and Benefit for Income Taxes	The components of the expense and benefit for income taxes for the periods presented are as follows: Years Ended December 31, 2016 2015 2014 (Dollars in thousands) Current income tax expense: Federal $ 39,528 $ 23,610 $ 18,329 State 6,013 3,441 2,921 Total current income tax expense 45,541 27,051 21,250 Deferred income tax expense (benefit): Federal 9,161 (19,157 ) (6,332 ) State 1,203 (2,238 ) (961 ) Total deferred income tax expense (benefit) 10,364 (21,395 ) (7,293 ) Total income tax expense (benefit) $ 55,905 $ 5,656 $ 13,957
Reconciliation of Expected Income Tax Expense or Benefit at Statutory Federal Income Tax Rate to Actual Income Tax Expense or Benefit and Effective Tax Rate	A reconciliation of the expected income tax expense or benefit at the statutory federal income tax rate of 35% to the Company’s actual income tax expense or benefit and effective tax rate for the periods presented is as follows: Years Ended December 31, 2016 2015 2014 Amount % Amount % Amount % (Dollars in thousands) Tax expense (benefit) at federal income tax rate $ 54,537 35.00 % $ 20,667 35.00 % $ 12,747 35.00 % Increase (decrease) resulting from: Bank-owned life insurance (1,817 ) (1.17 )% (1,614 ) (2.73 )% (2,019 ) (5.56 )% Stock compensation 234 0.15 % 729 1.23 % 2,870 7.90 % Dividends received deduction (1,919 ) (1.23 )% (2,104 ) (3.56 )% (1,168 ) (3.21 )% GFB NUBIL Revaluation — — % (4,954 ) (8.39 )% — — % NOL Valuation Allowance — — % (9,061 ) (15.35 )% — — % State tax, net of federal benefit 4,777 3.07 % 1,619 2.74 % 1,238 3.41 % Other 93 0.06 % 374 0.62 % 289 0.79 % Total $ 55,905 35.88 % $ 5,656 9.56 % $ 13,957 38.33 %
Significant Components of Net Deferred Tax Assets and Liabilities	The significant components of the net deferred tax assets and liabilities for the periods presented are as follows: December 31, 2016 2015 (Dollars in thousands) Deferred tax assets: Excess tax basis over carrying value of assets: Other real estate owned $ 12,991 $ 15,740 Total 12,991 15,740 Excess carrying value over tax basis of liabilities: Deposits — 19 Repo Loans 324 1,330 Total 324 1,349 Net operating loss carry forward: Federal 9,287 9,790 State 921 971 Total 10,208 10,761 Amortization 21,555 25,052 Depreciation 660 848 Unrealized losses on securities available for sale 2,509 5,930 Allowance for loan losses 12,807 9,468 Non-qualified stock options 7,695 6,458 Other 2,696 2,794 Gross deferred tax assets 71,445 78,400 Valuation allowance — — Gross deferred tax assets, net of valuation allowance 71,445 78,400 Deferred tax liabilities: Loans (7,542 ) (966 ) Restricted securities (2,260 ) (2,257 ) Other (252 ) (1 ) Gross deferred tax liabilities (10,054 ) (3,224 ) Deferred tax assets (liabilities), net $ 61,391 $ 75,176

Commitments and Contingencies (

Commitments and Contingencies (Tables)	12 Months Ended
	Dec. 31, 2016
Commitments and Contingencies Disclosure [Abstract]
Summary of Unfunded Commitments	Unfunded commitments are as follows: December 31, 2016 2015 (Dollars in thousands) Commitments to fund loans $ 724,380 $ 578,730 Unused lines of credit 410,068 358,601 Commercial and standby letters of credit 26,200 14,410 Total $ 1,160,648 $ 951,741

Parent Company Financial Stat46

Parent Company Financial Statements (Tables) - Parent company	12 Months Ended
	Dec. 31, 2016
Condensed Balance Sheets	Condensed Balance Sheets of FCB Financial Holdings, Inc. (Parent company only) for the periods presented are as follows: PARENT COMPANY CONDENSED BALANCE SHEETS December 31, 2016 2015 (Dollars in thousands) Assets: Cash and due from banks $ 18,126 $ 9,112 Available for sale securities 129,970 167,524 Investment in bank subsidiary 885,296 773,508 Other assets 9,874 12,980 Total assets $ 1,043,266 $ 963,124 Liabilities and stockholders’ equity: Total liabilities 61,182 87,432 Stockholders’ equity 982,084 875,692 Total liabilities and stockholders’ equity $ 1,043,266 $ 963,124
Condensed Statements of Income	Condensed Statements of Income of FCB Financial Holdings, Inc. (Parent company only) for the periods presented are as follows: PARENT COMPANY CONDENSED STATEMENTS OF INCOME Years Ended December 31, 2016 2015 2014 (Dollars in thousands) Income: Interest and dividends on investment securities $ 7,831 $ 8,602 $ 4,838 Gain (loss) on investment securities (586 ) 688 (197 ) Total income 7,245 9,290 4,641 Expense: Interest on borrowings 884 551 — Stock-based compensation expense 577 829 13,205 Professional services 707 950 1,243 Directors fees 800 598 3,700 Warrant expense — — 4,122 Insurance expense 1,034 1,505 1,451 Other noninterest expense 7,261 6,500 3,715 Total expense 11,263 10,933 27,436 Income (loss) before income taxes and equity in undistributed income of subsidiaries (4,018 ) (1,643 ) (22,795 ) Income tax expense (benefit) (3,671 ) (2,901 ) (8,836 ) Income (loss) before equity in undistributed income of subsidiaries (347 ) 1,258 (13,959 ) Equity in income of subsidiary 100,263 52,133 36,331 Net income $ 99,916 $ 53,391 $ 22,372
Condensed Statements of Comprehensive Income	Condensed Statements of Comprehensive Income of FCB Financial Holdings, Inc. (Parent company only) for periods presented are as follows: PARENT COMPANY CONDENSED STATEMENTS OF COMPREHENSIVE INCOME Years Ended December 31, 2016 2015 2014 (Dollars in thousands) Net income $ 99,916 $ 53,391 $ 22,372 Other comprehensive income (loss): Unrealized net holding gains (losses) on investment securities available for sale, net of taxes of $(620), $(227), and $(1,666), respectively 988 362 2,653 Reclassification adjustment for (gains) losses on investment securities available for sale included in net income, net of taxes of $63, $384, and $(443), respectively (100 ) (612 ) 705 Total other comprehensive income (loss) 888 (250 ) 3,358 Total comprehensive income $ 100,804 $ 53,141 $ 25,730
Condensed Statements of Cash Flows	Condensed Statements of Cash Flows of FCB Financial Holdings, Inc. (Parent company only) for periods presented are as follows: PARENT COMPANY CONDENSED STATEMENTS OF CASH FLOWS Years Ended December 31, 2016 2015 2014 (Dollars in thousands) Cash flows from operating activities: Net income $ 99,916 $ 53,391 $ 22,372 Adjustments to reconcile net income to net cash used in operating activities: Equity in earnings of subsidiaries (100,263 ) (52,133 ) (36,331 ) (Gain) loss on investment securities 586 (688 ) 197 Stock-based compensation and warrant expense 577 829 17,326 Depreciation of premises and equipment — 1 2 Deferred tax expense (735 ) 1,272 — Net change in operating assets and liabilities: (Increase)/decrease in due from subsidiaries 4,478 8,476 (8,026 ) Increase/(decrease) in due to subsidiaries 1,745 (1,979 ) 1,895 Net change in other assets 1,382 1,052 (558 ) Net change in other liabilities (4,365 ) (2,806 ) (30 ) Net cash provided by (used in) operating activities 3,321 7,415 (3,153 ) Cash flows from investing activities: Purchases of investment securities available for sale (67,934 ) (169,728 ) (149,794 ) Sales of investment securities available for sale 106,347 110,649 128,559 Payments and maturities of investment securities — 2,005 — Capital contribution — (35,000 ) (172,000 ) Net cash provided by (used in) investing activities 38,413 (92,074 ) (193,235 ) Cash flows from financing activities: Proceeds from capital raise, net — — 104,475 Deferred costs from capital raise — — (97 ) Deferred placement fee — — (10,000 ) Settlement of RSU shares — — (5,688 ) Repurchase common stock (23,738 ) (34,884 ) — Exercise of stock options 17,042 8,793 — Excess tax benefit from share-based payments 2,110 2,048 — Net change in repurchase agreements (28,134 ) 87,254 — Net cash provided by (used in) financing activities (32,720 ) 63,211 88,690 Net Change in Cash 9,014 (21,448 ) (107,698 ) Cash at Beginning of Period 9,112 30,560 138,258 Cash at End of Period $ 18,126 $ 9,112 $ 30,560

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	12 Months Ended
	Dec. 31, 2016
Fair Value Disclosures [Abstract]
Summary of Assets and Liabilities Measured at Fair Value on a Recurring Basis	The following table presents the assets and liabilities measured at fair value on a recurring basis: December 31, 2016 Level 1 Level 2 Level 3 Total (Dollars in thousands) Assets: U.S. Government agencies and sponsored enterprises obligations $ — $ 16,314 $ — $ 16,314 U.S. Government agencies and sponsored enterprises mortgage-backed securities — 558,446 — 558,446 State and municipal obligations — 27,679 — 27,679 Asset-backed securities — 577,823 — 577,823 Corporate bonds and other debt securities 53,517 505,777 — 559,294 Preferred stocks and other equity securities 6,908 129,970 — 136,878 Derivative assets—Interest rate contracts — 15,268 — 15,268 Total $ 60,425 $ 1,831,277 $ — $ 1,891,702 Liabilities: Derivative liabilities—Interest rate contracts $ — $ 15,268 $ — $ 15,268 Total $ — $ 15,268 $ — $ 15,268 December 31, 2015 Level 1 Level 2 Level 3 Total (Dollars in thousands) Assets: U.S. Government agencies and sponsored enterprises obligations $ — $ 20,888 $ — $ 20,888 U.S. Government agencies and sponsored enterprises mortgage-backed securities — 393,115 — 393,115 State and municipal obligations — 2,215 — 2,215 Asset-backed securities — 493,934 — 493,934 Corporate bonds and other debt securities — 444,895 — 444,895 Preferred stocks and other equity securities 2,052 167,523 — 169,575 Derivative assets—Interest rate contracts — 21,553 — 21,553 Total $ 2,052 $ 1,544,123 $ — $ 1,546,175 Liabilities: Derivative liabilities—Interest rate contracts $ — $ 21,553 $ — $ 21,553 Total $ — $ 21,553 $ — $ 21,553
Schedule of Changes in Fair Value of Liabilities Measured at Fair Value on Recurring Basis and Classified in Level 3 of Fair Value Hierarchy for Periods Presented	The following tables reconcile changes in the fair value of liabilities measured at fair value on a recurring basis and classified in level 3 of the fair value hierarchy for the periods presented: Years Ended December 31, 2016 2015 2014 Clawback Liability EAAs Clawback Liability EAAs Clawback Liability EAAs (Dollars in thousands) Balance at beginnning of period $ — $ — $ 13,846 $ — $ 11,753 $ 1,114 Losses (gains) included in other noninterest expenses — — — — 2,093 1,466 Termination of FDIC loss sharing agreements — — (13,846 ) — — — Final EAA settlement on FCB — — — — — (1,458 ) Final EAA settlement on PAB — — — — — (1,122 ) Balance at end of period $ — $ — $ — $ — $ 13,846 $ —
Significant Unobservable Inputs in Fair Value Measurement Level 3 Assets and Liabilities	The following table shows significant unobservable inputs used in the non-recurring fair value measurement of level 3 assets and liabilities: Level 3 Assets: December 31, 2016 December 31, 2015 Valuation Technique Unobservable Inputs Range (Weighted Average) (Dollars in thousands) Impaired Loans $ 8,878 $ 9,582 Third party appraisals and discounted cash flows Collateral discounts and discount rates 0% - 100% (9.9%) Other real estate owned 19,228 39,340 Third party appraisals Collateral discounts and estimated cost to sell 10 %
Summary of Fair Value Measurements Related to Collateral Dependent Impaired Loans and OREO are Classified within Level 3 of the Fair Value Hierarchy	The following table provides information about certain assets measured at fair value on a non-recurring basis: Years Ended December 31, 2016 2015 2014 (Dollars in thousands) Negative valuation adjustments: Impaired loans $ 700 $ 1,071 $ 174 Foreclosed real estate 1,219 674 1,829
Schedule of Carrying Amounts and Estimated Fair Values, as well as the Level within the Fair Value Hierarchy	The carrying amounts and estimated fair values, as well as the level within the fair value hierarchy, of the Company’s financial instruments are as follows: December 31, 2016 Carrying Value Fair Value Level 1 Level 2 Level 3 (Dollars in thousands) Financial Assets: Cash and cash equivalents $ 83,876 $ 83,876 $ 83,876 $ — $ — Available for sale securities 1,876,434 1,876,434 60,425 1,816,009 — FHLB and other bank stock 51,656 51,656 — 51,656 — Loans, net 6,596,997 6,556,914 — — 6,556,914 Loans held for sale 20,220 20,220 — 20,220 — Bank-owned life insurance 198,438 198,438 — 198,438 — Derivative assets—Interest rate contracts 15,268 15,268 — 15,268 — Financial Liabilities: Deposits $ 7,305,671 $ 7,306,148 $ — $ 7,306,148 $ — Advances from the FHLB and other borrowings 751,103 745,855 — 745,855 — Derivative liabilities—Interest rate contracts 15,268 15,268 — 15,268 — December 31, 2015 Carrying Value Fair Value Level 1 Level 2 Level 3 (Dollars in thousands) Financial Assets: Cash and cash equivalents $ 102,460 $ 102,460 $ 102,460 $ — $ — Available for sale securities 1,524,622 1,524,622 2,052 1,522,570 — FHLB and other bank stock 59,477 59,477 — 59,477 — Loans, net 5,164,061 5,207,971 — — 5,207,971 Loans held for sale 2,514 2,514 — 2,514 — Bank-owned life insurance 168,246 168,246 — 168,246 — Derivative assets—Interest rate contracts 21,553 21,553 — 21,553 — Financial Liabilities: Deposits $ 5,430,638 $ 5,430,501 $ — $ 5,430,501 $ — Advances from the FHLB and other borrowings 983,183 981,997 — 981,997 — Derivative liabilities—Interest rate contracts 21,553 21,553 — 21,553 —

Quarterly Financial Data (Una48

Quarterly Financial Data (Unaudited) (Tables)	12 Months Ended
	Dec. 31, 2016
Quarterly Financial Information Disclosure [Abstract]
Summary of Quarterly Financial Data	The information below is only a summary and should be read in conjunction with “Management’s Discussion and Analysis of Financial Condition and Results of Operations” and the consolidated historical financial statements and the related notes thereto included in this Form 10-K filing. Quarters Ended December 31, 2016 Q4 Q3 Q2 Q1 (Dollars in thousands, except per share data) Selected Income Statement data: Interest income $ 85,580 $ 80,800 $ 77,208 $ 75,728 Interest expense 14,514 13,522 12,278 11,286 Net interest income 71,066 67,278 64,930 64,442 Provision for loan losses 2,249 1,990 1,976 1,440 Net interest income after provision for loan losses 68,817 65,288 62,954 63,002 Noninterest income 7,919 8,142 8,222 5,434 Noninterest expense 33,646 33,036 33,975 33,300 Income (loss) before income tax expense (benefit) 43,090 40,394 37,201 35,136 Income tax expense (benefit) 15,194 14,330 13,697 12,684 Net income (loss) $ 27,896 $ 26,064 $ 23,504 $ 22,452 Earnings (loss) per share: Basic $ 0.68 $ 0.64 $ 0.58 $ 0.55 Diluted $ 0.64 $ 0.60 $ 0.55 $ 0.52 Quarters Ended December 31, 2015 Q4 Q3 Q2 Q1 (Dollars in thousands, except per share data) Selected Income Statement data: Interest income $ 71,157 $ 65,023 $ 57,411 $ 55,449 Interest expense 9,188 8,254 7,237 6,565 Net interest income 61,969 56,769 50,174 48,884 Provision for loan losses 2,329 675 2,470 1,349 Net interest income after provision for loan losses 59,640 56,094 47,704 47,535 Noninterest income 7,543 7,072 14,152 (54,089 ) Noninterest expense 33,201 30,706 32,047 30,650 Income (loss) before income tax expense (benefit) 33,982 32,460 29,809 (37,204 ) Income tax expense (benefit) 4,233 11,320 10,433 (20,330 ) Net income (loss) $ 29,749 $ 21,140 $ 19,376 $ (16,874 ) Earnings (loss) per share: Basic $ 0.73 $ 0.51 $ 0.47 $ (0.41 ) Diluted $ 0.68 $ 0.48 $ 0.45 $ (0.41 )

Summary of Significant Accoun49

Summary of Significant Accounting Policies - Additional Information (Detail)	Aug. 06, 2014$ / sharesshares	Mar. 31, 2015USD ($)	Mar. 31, 2014USD ($)	Dec. 31, 2016USD ($)SegmentsSubsidiaryBankingCentersLoan_Gradeshares	Dec. 31, 2015USD ($)	Dec. 31, 2014USD ($)
Schedule Of Significant Accounting Policies [Line Items]
Number of wholly owned subsidiary | Subsidiary				1
Number of banking centers | BankingCenters				46
Aggregate unpaid principal balance				$ 456,000
Proceeds from sale of loan				75,300,000
Sale of loans, Interest income				27,200,000
Loans, threshold for individual impairment testing				250,000
Impairment of goodwill				0
Initial public offering				$ 0	$ 0	$ 104,475,000
Number of reportable segment | Segments				1
2016 Stock incentive plan | Class A common stock
Schedule Of Significant Accounting Policies [Line Items]
Common stock, capital shares reserved for future issuance (in shares) | shares				2,000,000
Bank premises
Schedule Of Significant Accounting Policies [Line Items]
Premises and equipment, useful life				39 years
Furniture and equipment
Schedule Of Significant Accounting Policies [Line Items]
Premises and equipment, useful life				5 years
IPO | Class A common stock
Schedule Of Significant Accounting Policies [Line Items]
Common stock, shares issued (in shares) | shares	7,520,000
Common stock, shares issued (in dollars per share) | $ / shares	$ 22
Unpaid principal balance
Schedule Of Significant Accounting Policies [Line Items]
Number of pools carrying values previously reduced to zero (in pools) | Loan_Grade				6
Core deposit intangible
Schedule Of Significant Accounting Policies [Line Items]
Estimated useful life of intangible assets				10 years
Asset impairment charges		$ 0	$ 0	$ 0
Minimum | Computer equipment and software
Schedule Of Significant Accounting Policies [Line Items]
Premises and equipment, useful life				3 years
Minimum | IPO | 2013 Stock incentive plan | 2013 Plan options
Schedule Of Significant Accounting Policies [Line Items]
Initial public offering				$ 100,000,000
Maximum | Computer equipment and software
Schedule Of Significant Accounting Policies [Line Items]
Premises and equipment, useful life				5 years

Investment Securities - Summary

Investment Securities - Summary of Amortized Cost, Gross Unrealized Gains and Losses and Approximate Fair Values of Securities Available for Sale (Detail) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Schedule of Available-for-sale Securities [Line Items]
Available for sale securities, amortized cost	$ 1,882,938	$ 1,539,993
Available for sale securities, unrealized gains	11,140	5,993
Available for sale securities, unrealized losses	17,644	21,364
Available for sale securities, at fair value	1,876,434	1,524,622
U.S. Government agencies and sponsored enterprises obligations
Schedule of Available-for-sale Securities [Line Items]
Available for sale securities, amortized cost	16,512	20,930
Available for sale securities, unrealized gains	76	100
Available for sale securities, unrealized losses	274	142
Available for sale securities, at fair value	16,314	20,888
U.S. Government agencies and sponsored enterprises mortgage-backed securities
Schedule of Available-for-sale Securities [Line Items]
Available for sale securities, amortized cost	566,377	392,123
Available for sale securities, unrealized gains	1,760	2,587
Available for sale securities, unrealized losses	9,691	1,595
Available for sale securities, at fair value	558,446	393,115
State and municipal obligations
Schedule of Available-for-sale Securities [Line Items]
Available for sale securities, amortized cost	28,109	2,041
Available for sale securities, unrealized gains	148	174
Available for sale securities, unrealized losses	578	0
Available for sale securities, at fair value	27,679	2,215
Asset-backed securities
Schedule of Available-for-sale Securities [Line Items]
Available for sale securities, amortized cost	574,521	503,240
Available for sale securities, unrealized gains	3,852	383
Available for sale securities, unrealized losses	550	9,689
Available for sale securities, at fair value	577,823	493,934
Corporate bonds and other debt securities
Schedule of Available-for-sale Securities [Line Items]
Available for sale securities, amortized cost	560,191	450,489
Available for sale securities, unrealized gains	4,490	1,596
Available for sale securities, unrealized losses	5,387	7,190
Available for sale securities, at fair value	559,294	444,895
Preferred stocks and other equity securities
Schedule of Available-for-sale Securities [Line Items]
Available for sale securities, amortized cost	137,228	171,170
Available for sale securities, unrealized gains	814	1,153
Available for sale securities, unrealized losses	1,164	2,748
Available for sale securities, at fair value	$ 136,878	$ 169,575

Investment Securities - Additio

Investment Securities - Additional Information (Detail) $ in Millions	Dec. 31, 2016USD ($)Securities	Dec. 31, 2015USD ($)
Investments, Debt and Equity Securities [Abstract]
Carrying value of pledged securities | $	$ 594	$ 939.6
Security portfolio consisted	364
Securities were in an unrealized loss position	149
Unrealized loss position for less than 12 months	113

Investment Securities - Schedul

Investment Securities - Schedule of Amortized Cost and Estimated Fair Value of Securities Available for Sale (Detail) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Investments, Debt and Equity Securities [Abstract]
Available for sale, due in one year or less at amortized cost	$ 0
Available for sale, due after one year through five years at amortized cost	182,333
Available for sale, due after five years through ten years at amortized cost	104,086
Available for sale, due after ten years at amortized cost	275,813
U.S. Government agencies and sponsored enterprises obligations, mortgage-backed securities and tax-exempt mortgage securities, and asset-backed securities at amortized cost	1,183,478
Preferred stock and other equity securities, amortized cost	137,228
Available for sale securities, amortized cost	1,882,938	$ 1,539,993
Available for sale securities, due in one year or less at fair value	0
Available for sale securities, due after one year through five years at fair value	182,132
Available for sale securities, due after 5 years through 10 years at fair value	102,346
Available for sale securities, due after 10 years at fair value	277,005
U.S. Government agencies and sponsored enterprises obligations, mortgage-backed securities and tax-exempt mortgage securities, and asset-backed securities at fair value	1,178,073
Preferred stock and other equity securities, fair value	136,878
Available for sale securities, at fair value	$ 1,876,434	$ 1,524,622

Investment Securities - Summa53

Investment Securities - Summary of Estimated Fair Values and Gross Unrealized Losses on Investment Securities Available for Sale (Detail) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Schedule of Available-for-sale Securities [Line Items]
Available for sale securities at fair value, less than 12 months	$ 650,442	$ 1,039,553
Available for sale securities unrealized loss, less than 12 months	14,320	16,753
Available for sale securities at fair value, 12 months or more	129,693	109,696
Available for sale securities unrealized loss, 12 months or more	3,324	4,611
Available for sale securities, total fair value	780,135	1,149,249
Available for sale securities, total unrealized loss	17,644	21,364
U.S. Government agencies and sponsored enterprises obligations
Schedule of Available-for-sale Securities [Line Items]
Available for sale securities at fair value, less than 12 months	11,577	15,687
Available for sale securities unrealized loss, less than 12 months	274	142
Available for sale securities at fair value, 12 months or more	0	0
Available for sale securities unrealized loss, 12 months or more	0	0
Available for sale securities, total fair value	11,577	15,687
Available for sale securities, total unrealized loss	274	142
U.S. Government agencies and sponsored enterprises mortgage-backed securities
Schedule of Available-for-sale Securities [Line Items]
Available for sale securities at fair value, less than 12 months	372,145	225,109
Available for sale securities unrealized loss, less than 12 months	9,261	1,391
Available for sale securities at fair value, 12 months or more	11,781	12,584
Available for sale securities unrealized loss, 12 months or more	430	204
Available for sale securities, total fair value	383,926	237,693
Available for sale securities, total unrealized loss	9,691	1,595
State and municipal obligations
Schedule of Available-for-sale Securities [Line Items]
Available for sale securities at fair value, less than 12 months	25,490	0
Available for sale securities unrealized loss, less than 12 months	578	0
Available for sale securities at fair value, 12 months or more	0	0
Available for sale securities unrealized loss, 12 months or more	0	0
Available for sale securities, total fair value	25,490	0
Available for sale securities, total unrealized loss	578	0
Asset-backed securities
Schedule of Available-for-sale Securities [Line Items]
Available for sale securities at fair value, less than 12 months	11,309	354,912
Available for sale securities unrealized loss, less than 12 months	21	6,290
Available for sale securities at fair value, 12 months or more	34,855	78,112
Available for sale securities unrealized loss, 12 months or more	529	3,399
Available for sale securities, total fair value	46,164	433,024
Available for sale securities, total unrealized loss	550	9,689
Corporate bonds and other debt securities
Schedule of Available-for-sale Securities [Line Items]
Available for sale securities at fair value, less than 12 months	179,925	347,302
Available for sale securities unrealized loss, less than 12 months	3,042	7,190
Available for sale securities at fair value, 12 months or more	77,934	0
Available for sale securities unrealized loss, 12 months or more	2,345	0
Available for sale securities, total fair value	257,859	347,302
Available for sale securities, total unrealized loss	5,387	7,190
Preferred stocks and other equity securities
Schedule of Available-for-sale Securities [Line Items]
Available for sale securities at fair value, less than 12 months	49,996	96,543
Available for sale securities unrealized loss, less than 12 months	1,144	1,740
Available for sale securities at fair value, 12 months or more	5,123	19,000
Available for sale securities unrealized loss, 12 months or more	20	1,008
Available for sale securities, total fair value	55,119	115,543
Available for sale securities, total unrealized loss	$ 1,164	$ 2,748

Investment Securities - Summa54

Investment Securities - Summary of Gross Realized Gains and Losses on Sale of Securities Available for Sale (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Investments, Debt and Equity Securities [Abstract]
Gross realized gains	$ 3,645	$ 2,065	$ 14,328
Gross realized losses	(2,066)	(1,047)	(2,281)
Net realized gains	$ 1,579	$ 1,018	$ 12,047

Loans, Net - Schedule of Loans

Loans, Net - Schedule of Loans by Portfolio and Segment (Detail) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan amount	$ 6,634,894	$ 5,193,187
Allowance for loan losses	(37,897)	(29,126)	$ (22,880)	$ (14,733)
Loans, net	6,596,997	5,164,061
Total real estate loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan amount	5,274,680	4,166,072
Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan amount	1,607,841	1,301,754
Allowance for loan losses	(10,123)	(8,450)	(8,206)	(4,458)
Owner-occupied commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan amount	788,291	545,829
Allowance for loan losses	(2,597)	(2,243)	(1,020)	(376)
1-4 single family residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan amount	2,111,186	1,666,288
Allowance for loan losses	(7,379)	(6,425)	(4,740)	(1,443)
Construction, land and development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan amount	675,248	571,849
Allowance for loan losses	(4,677)	(3,404)	(2,456)	(1,819)
Home equity loans and lines of credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan amount	92,114	80,352
Allowance for loan losses	(648)	(483)	(355)	(265)
Total other loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan amount	1,360,214	1,027,115
Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan amount	1,353,831	1,018,898
Allowance for loan losses	(12,245)	(7,665)	(5,745)	(6,198)
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan amount	6,383	8,217
Allowance for loan losses	(228)	(456)	(358)	$ (174)
Acquired loans portfolio segment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan amount	375,488	582,424
Allowance for loan losses	(1,410)	(2,270)	(1,382)
Acquired loans portfolio segment | ASC 310-30 Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan amount	196,589	355,740
Allowance for loan losses	(2,944)	(3,111)	(5,486)
Acquired loans portfolio segment | Non-ASC 310-30 Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan amount	178,899	226,684
Acquired loans portfolio segment | Total real estate loans | ASC 310-30 Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan amount	179,761	316,567
Allowance for loan losses	(2,523)	(2,252)
Acquired loans portfolio segment | Total real estate loans | Non-ASC 310-30 Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan amount	172,750	216,942
Acquired loans portfolio segment | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	(376)	(1,084)	(495)
Acquired loans portfolio segment | Commercial real estate | ASC 310-30 Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan amount	130,628	247,628
Allowance for loan losses	(2,255)	(1,898)	(3,255)
Acquired loans portfolio segment | Commercial real estate | Non-ASC 310-30 Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan amount	38,786	55,985
Acquired loans portfolio segment | Owner-occupied commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	(61)	(463)	(58)
Acquired loans portfolio segment | Owner-occupied commercial real estate | ASC 310-30 Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan amount	0	0
Allowance for loan losses	0	0	0
Acquired loans portfolio segment | Owner-occupied commercial real estate | Non-ASC 310-30 Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan amount	18,477	21,101
Acquired loans portfolio segment | 1-4 single family residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	(301)	(332)	(414)
Acquired loans portfolio segment | 1-4 single family residential | ASC 310-30 Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan amount	31,476	40,922
Allowance for loan losses	(29)	(26)	(325)
Acquired loans portfolio segment | 1-4 single family residential | Non-ASC 310-30 Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan amount	66,854	84,111
Acquired loans portfolio segment | Construction, land and development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	(47)	(36)	(75)
Acquired loans portfolio segment | Construction, land and development | ASC 310-30 Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan amount	17,657	28,017
Allowance for loan losses	(239)	(328)	(658)
Acquired loans portfolio segment | Construction, land and development | Non-ASC 310-30 Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan amount	6,338	6,338
Acquired loans portfolio segment | Home equity loans and lines of credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	(243)	(291)	(285)
Acquired loans portfolio segment | Home equity loans and lines of credit | ASC 310-30 Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan amount	0	0
Allowance for loan losses	0	0	0
Acquired loans portfolio segment | Home equity loans and lines of credit | Non-ASC 310-30 Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan amount	42,295	49,407
Acquired loans portfolio segment | Total other loans | ASC 310-30 Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan amount	16,828	39,173
Allowance for loan losses	(421)	(859)
Acquired loans portfolio segment | Total other loans | Non-ASC 310-30 Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan amount	6,149	9,742
Acquired loans portfolio segment | Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	(376)	(60)	(49)
Acquired loans portfolio segment | Commercial and industrial | ASC 310-30 Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan amount	15,147	36,783
Allowance for loan losses	(277)	(453)	(958)
Acquired loans portfolio segment | Commercial and industrial | Non-ASC 310-30 Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan amount	5,815	9,312
Acquired loans portfolio segment | Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	(6)	(4)	(6)
Acquired loans portfolio segment | Consumer | ASC 310-30 Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan amount	1,681	2,390
Allowance for loan losses	(144)	(406)	(290)
Acquired loans portfolio segment | Consumer | Non-ASC 310-30 Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan amount	334	430
New loans portfolio segment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan amount	6,259,406	4,610,763
Allowance for loan losses	(33,543)	(23,745)	(16,012)
New loans portfolio segment | Total real estate loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan amount	4,922,169	3,632,563
New loans portfolio segment | Total real estate loans | ASC 310-30 Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan amount	0	0
Allowance for loan losses	0	0
New loans portfolio segment | Commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan amount	1,438,427	998,141
Allowance for loan losses	(7,492)	(5,468)	(4,456)
New loans portfolio segment | Commercial real estate | ASC 310-30 Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan amount	0	0
Allowance for loan losses	0	0
New loans portfolio segment | Owner-occupied commercial real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan amount	769,814	524,728
Allowance for loan losses	(2,536)	(1,780)	(962)
New loans portfolio segment | Owner-occupied commercial real estate | ASC 310-30 Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan amount	0	0
Allowance for loan losses	0	0
New loans portfolio segment | 1-4 single family residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan amount	2,012,856	1,541,255
Allowance for loan losses	(7,049)	(6,067)	(4,001)
New loans portfolio segment | 1-4 single family residential | ASC 310-30 Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan amount	0	0
Allowance for loan losses	0	0
New loans portfolio segment | Construction, land and development
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan amount	651,253	537,494
Allowance for loan losses	(4,391)	(3,040)	(1,723)
New loans portfolio segment | Construction, land and development | ASC 310-30 Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan amount	0	0
Allowance for loan losses	0	0
New loans portfolio segment | Home equity loans and lines of credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan amount	49,819	30,945
Allowance for loan losses	(405)	(192)	(70)
New loans portfolio segment | Home equity loans and lines of credit | ASC 310-30 Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan amount	0	0
Allowance for loan losses	0	0
New loans portfolio segment | Total other loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan amount	1,337,237	978,200
New loans portfolio segment | Total other loans | ASC 310-30 Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan amount	0	0
Allowance for loan losses	0	0
New loans portfolio segment | Commercial and industrial
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan amount	1,332,869	972,803
Allowance for loan losses	(11,592)	(7,152)	(4,738)
New loans portfolio segment | Commercial and industrial | ASC 310-30 Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan amount	0	0
Allowance for loan losses	0	0
New loans portfolio segment | Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan amount	4,368	5,397
Allowance for loan losses	(78)	(46)	$ (62)
New loans portfolio segment | Consumer | ASC 310-30 Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan amount	0	0
Allowance for loan losses	$ 0	$ 0

Loans, Net - Schedule of Loan56

Loans, Net - Schedule of Loans by Portfolio and Segment (Footnote) (Detail) - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015
New loans portfolio segment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Net deferred fees, costs, and premium and discount	$ 3.2	$ 7.1

Loans, Net - Additional Informa

Loans, Net - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]
Pledged loans as collateral for FHLB advances with a carrying amount	$ 3,200,000	$ 2,130,000
Loan amount	6,634,894	5,193,187
Purchase of residential mortgage loans from third parties	199,000	379,300	$ 377,100
Sale of loans to third parties	128,700	91,800	39,300
Change in expected cash flow for certain ASC 310-30 loan pools resulted in the reclassification	(28,700)	43,000	$ 28,500
ASC 310-30 Loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
UPB of ASC 310-30 loans	231,500	457,900
1-4 single family residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Recorded investments of consumer mortgage loans secured by residential real estate properties for which formal foreclosure proceedings are in process	6,300
Other real estate	1,700	4,900
Loan amount	2,111,186	1,666,288
Syndicated national loans
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan amount	$ 433,000	$ 464,200

Loans, Net - Summary of Changes

Loans, Net - Summary of Changes in Accretable Discount for ASC 310-30 Loans (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield Movement Schedule [Roll Forward]
Balance at January 1,	$ 144,152	$ 156,197	$ 148,501
Additions to accretable discount from GFB acquisition	0	0	40,444
Accretion	(54,427)	(55,019)	(61,281)
Reclassifications from non-accretable difference	(28,735)	42,974	28,533
Balance at December 31,	$ 60,990	$ 144,152	$ 156,197

Allowance for Loan Losses - Sum

Allowance for Loan Losses - Summary of Changes in Allowance for Loan Losses by Loan Class and Portfolio Segment (Detail) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance				$ 29,126				$ 22,880	$ 29,126	$ 22,880	$ 14,733
Total provision	$ 2,249	$ 1,990	$ 1,976	1,440	$ 2,329	$ 675	$ 2,470	1,349	7,655	6,823	10,243
Total charge-offs									(720)	(1,748)	(3,039)
Total recoveries									1,836	1,171	943
Ending balance	37,897				29,126				37,897	29,126	22,880
Acquired loans portfolio segment
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance				2,270				1,382	2,270	1,382
Total provision									(1,630)	1,156	1,524
Total charge-offs									(42)	(268)	(349)
Total recoveries									812	0	0
Ending balance	1,410				2,270				1,410	2,270	1,382
Acquired loans portfolio segment | ASC 310-30 Loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance				3,111				5,486	3,111	5,486
Total provision									(513)	(2,069)	642
Total charge-offs									(678)	(1,465)	(2,336)
Total recoveries									1,024	1,159	939
Ending balance	2,944				3,111				2,944	3,111	5,486
New loans portfolio segment
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance				23,745				16,012	23,745	16,012
Total provision									9,798	7,736	8,077
Total charge-offs									0	(15)	(354)
Total recoveries									0	12	4
Ending balance	33,543				23,745				33,543	23,745	16,012
Commercial real estate
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance				8,450				8,206	8,450	8,206	4,458
Total provision									388	114	3,903
Total charge-offs									(429)	(270)	(270)
Total recoveries									1,714	400	115
Ending balance	10,123				8,450				10,123	8,450	8,206
Commercial real estate | Acquired loans portfolio segment
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance				1,084				495	1,084	495
Total provision									(1,512)	589	490
Total charge-offs									0	0	0
Total recoveries									804	0	0
Ending balance	376				1,084				376	1,084	495
Commercial real estate | Acquired loans portfolio segment | ASC 310-30 Loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance				1,898				3,255	1,898	3,255
Total provision									(124)	(1,487)	735
Total charge-offs									(429)	(270)	(270)
Total recoveries									910	400	115
Ending balance	2,255				1,898				2,255	1,898	3,255
Commercial real estate | New loans portfolio segment
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance				5,468				4,456	5,468	4,456
Total provision									2,024	1,012	2,678
Total charge-offs									0	0	0
Total recoveries									0	0	0
Ending balance	7,492				5,468				7,492	5,468	4,456
Commercial real estate | New loans portfolio segment | ASC 310-30 Loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance				0					0
Ending balance	0				0				0	0
Owner-occupied commercial real estate
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance				2,243				1,020	2,243	1,020	376
Total provision									355	1,223	644
Total charge-offs									(1)	0	0
Total recoveries									0	0	0
Ending balance	2,597				2,243				2,597	2,243	1,020
Owner-occupied commercial real estate | Acquired loans portfolio segment
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance				463				58	463	58
Total provision									(401)	405	53
Total charge-offs									(1)	0	0
Total recoveries									0	0	0
Ending balance	61				463				61	463	58
Owner-occupied commercial real estate | Acquired loans portfolio segment | ASC 310-30 Loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance				0				0	0	0
Total provision									0	0	0
Total charge-offs									0	0	0
Total recoveries									0	0	0
Ending balance	0				0				0	0	0
Owner-occupied commercial real estate | New loans portfolio segment
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance				1,780				962	1,780	962
Total provision									756	818	591
Total charge-offs									0	0	0
Total recoveries									0	0	0
Ending balance	2,536				1,780				2,536	1,780	962
Owner-occupied commercial real estate | New loans portfolio segment | ASC 310-30 Loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance				0					0
Ending balance	0				0				0	0
1-4 single family residential
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance				6,425				4,740	6,425	4,740	1,443
Total provision									954	2,075	3,328
Total charge-offs									(31)	(564)	(31)
Total recoveries									31	174	0
Ending balance	7,379				6,425				7,379	6,425	4,740
1-4 single family residential | Acquired loans portfolio segment
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance				332				414	332	414
Total provision									(31)	46	362
Total charge-offs									0	(128)	0
Total recoveries									0	0	0
Ending balance	301				332				301	332	414
1-4 single family residential | Acquired loans portfolio segment | ASC 310-30 Loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance				26				325	26	325
Total provision									3	(37)	271
Total charge-offs									(31)	(436)	(31)
Total recoveries									31	174	0
Ending balance	29				26				29	26	325
1-4 single family residential | New loans portfolio segment
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance				6,067				4,001	6,067	4,001
Total provision									982	2,066	2,695
Total charge-offs									0	0	0
Total recoveries									0	0	0
Ending balance	7,049				6,067				7,049	6,067	4,001
1-4 single family residential | New loans portfolio segment | ASC 310-30 Loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance				0					0
Ending balance	0				0				0	0
Construction, land and development
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance				3,404				2,456	3,404	2,456	1,819
Total provision									1,234	597	1,077
Total charge-offs									(33)	(56)	(1,250)
Total recoveries									72	407	810
Ending balance	4,677				3,404				4,677	3,404	2,456
Construction, land and development | Acquired loans portfolio segment
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance				36				75	36	75
Total provision									11	(39)	75
Total charge-offs									0	0	0
Total recoveries									0	0	0
Ending balance	47				36				47	36	75
Construction, land and development | Acquired loans portfolio segment | ASC 310-30 Loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance				328				658	328	658
Total provision									(128)	(681)	107
Total charge-offs									(33)	(56)	(1,244)
Total recoveries									72	407	810
Ending balance	239				328				239	328	658
Construction, land and development | New loans portfolio segment
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance				3,040				1,723	3,040	1,723
Total provision									1,351	1,317	895
Total charge-offs									0	0	(6)
Total recoveries									0	0	0
Ending balance	4,391				3,040				4,391	3,040	1,723
Construction, land and development | New loans portfolio segment | ASC 310-30 Loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance				0					0
Ending balance	0				0				0	0
Home equity loans and lines of credit
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance				483				355	483	355	265
Total provision									192	260	386
Total charge-offs									(35)	(132)	(296)
Total recoveries									8	0	0
Ending balance	648				483				648	483	355
Home equity loans and lines of credit | Acquired loans portfolio segment
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance				291				285	291	285
Total provision									(21)	138	442
Total charge-offs									(35)	(132)	(296)
Total recoveries									8	0	0
Ending balance	243				291				243	291	285
Home equity loans and lines of credit | Acquired loans portfolio segment | ASC 310-30 Loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance				0				0	0	0
Total provision									0	0	0
Total charge-offs									0	0	0
Total recoveries									0	0	0
Ending balance	0				0				0	0	0
Home equity loans and lines of credit | New loans portfolio segment
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance				192				70	192	70
Total provision									213	122	(56)
Total charge-offs									0	0	0
Total recoveries									0	0	0
Ending balance	405				192				405	192	70
Home equity loans and lines of credit | New loans portfolio segment | ASC 310-30 Loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance				0					0
Ending balance	0				0				0	0
Commercial and industrial
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance				7,665				5,745	7,665	5,745	6,198
Total provision									4,648	2,389	580
Total charge-offs									(79)	(658)	(1,050)
Total recoveries									11	189	17
Ending balance	12,245				7,665				12,245	7,665	5,745
Commercial and industrial | Acquired loans portfolio segment
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance				60				49	60	49
Total provision									316	11	67
Total charge-offs									0	0	(24)
Total recoveries									0	0	0
Ending balance	376				60				376	60	49
Commercial and industrial | Acquired loans portfolio segment | ASC 310-30 Loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance				453				958	453	958
Total provision									(108)	(39)	(716)
Total charge-offs									(79)	(643)	(678)
Total recoveries									11	177	13
Ending balance	277				453				277	453	958
Commercial and industrial | New loans portfolio segment
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance				7,152				4,738	7,152	4,738
Total provision									4,440	2,417	1,229
Total charge-offs									0	(15)	(348)
Total recoveries									0	12	4
Ending balance	11,592				7,152				11,592	7,152	4,738
Commercial and industrial | New loans portfolio segment | ASC 310-30 Loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance				0					0
Ending balance	0				0				0	0
Consumer
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance				456				358	456	358	174
Total provision									(116)	165	325
Total charge-offs									(112)	(68)	(142)
Total recoveries									0	1	1
Ending balance	228				456				228	456	358
Consumer | Acquired loans portfolio segment
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance				4				6	4	6
Total provision									8	6	35
Total charge-offs									(6)	(8)	(29)
Total recoveries									0	0	0
Ending balance	6				4				6	4	6
Consumer | Acquired loans portfolio segment | ASC 310-30 Loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance				406				290	406	290
Total provision									(156)	175	245
Total charge-offs									(106)	(60)	(113)
Total recoveries									0	1	1
Ending balance	144				406				144	406	290
Consumer | New loans portfolio segment
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance				46				$ 62	46	62
Total provision									32	(16)	45
Total charge-offs									0	0	0
Total recoveries									0	0	0
Ending balance	78				46				78	46	$ 62
Consumer | New loans portfolio segment | ASC 310-30 Loans
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance				$ 0					0
Ending balance	$ 0				$ 0				$ 0	$ 0

Allowance for Loan Losses - Agi

Allowance for Loan Losses - Aging Analysis of Recorded Investment for Loans by Portfolio and Segment (Detail) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
New loans portfolio segment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non- Accrual	$ 2,645	$ 1,454
Financing receivable, recorded investment, past due	4,942	12,406
New loans portfolio segment | 30 to 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	2,297	9,970
New loans portfolio segment | 60 to 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	0	982
New loans portfolio segment | 90 Days or More Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	0	0
Acquired loans portfolio segment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non- Accrual	12,832	13,740
Financing receivable, recorded investment, past due	13,822	16,665
Acquired loans portfolio segment | 30 to 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	820	2,036
Acquired loans portfolio segment | 60 to 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	170	889
Acquired loans portfolio segment | 90 Days or More Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	0	0
Total real estate loans | New loans portfolio segment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non- Accrual	2,645	1,454
Financing receivable, recorded investment, past due	4,942	12,406
Total real estate loans | New loans portfolio segment | 30 to 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	2,297	9,970
Total real estate loans | New loans portfolio segment | 60 to 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	0	982
Total real estate loans | New loans portfolio segment | 90 Days or More Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	0	0
Total real estate loans | Acquired loans portfolio segment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non- Accrual	12,507	12,840
Financing receivable, recorded investment, past due	13,369	15,675
Total real estate loans | Acquired loans portfolio segment | 30 to 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	820	1,946
Total real estate loans | Acquired loans portfolio segment | 60 to 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	42	889
Total real estate loans | Acquired loans portfolio segment | 90 Days or More Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	0	0
Commercial real estate | New loans portfolio segment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non- Accrual	581	0
Financing receivable, recorded investment, past due	581	0
Commercial real estate | New loans portfolio segment | 30 to 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	0	0
Commercial real estate | New loans portfolio segment | 60 to 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	0	0
Commercial real estate | New loans portfolio segment | 90 Days or More Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	0	0
Commercial real estate | Acquired loans portfolio segment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non- Accrual	4,720	5,282
Financing receivable, recorded investment, past due	4,720	5,345
Commercial real estate | Acquired loans portfolio segment | 30 to 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	0	63
Commercial real estate | Acquired loans portfolio segment | 60 to 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	0	0
Commercial real estate | Acquired loans portfolio segment | 90 Days or More Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	0	0
Owner-occupied commercial real estate | New loans portfolio segment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non- Accrual	0	0
Financing receivable, recorded investment, past due	0	113
Owner-occupied commercial real estate | New loans portfolio segment | 30 to 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	0	0
Owner-occupied commercial real estate | New loans portfolio segment | 60 to 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	0	113
Owner-occupied commercial real estate | New loans portfolio segment | 90 Days or More Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	0	0
Owner-occupied commercial real estate | Acquired loans portfolio segment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non- Accrual	2,502	2,247
Financing receivable, recorded investment, past due	2,595	2,342
Owner-occupied commercial real estate | Acquired loans portfolio segment | 30 to 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	93	0
Owner-occupied commercial real estate | Acquired loans portfolio segment | 60 to 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	0	95
Owner-occupied commercial real estate | Acquired loans portfolio segment | 90 Days or More Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	0	0
1-4 single family residential | New loans portfolio segment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non- Accrual	1,821	1,454
Financing receivable, recorded investment, past due	3,414	11,762
1-4 single family residential | New loans portfolio segment | 30 to 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	1,593	9,439
1-4 single family residential | New loans portfolio segment | 60 to 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	0	869
1-4 single family residential | New loans portfolio segment | 90 Days or More Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	0	0
1-4 single family residential | Acquired loans portfolio segment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non- Accrual	2,728	3,016
Financing receivable, recorded investment, past due	2,935	5,106
1-4 single family residential | Acquired loans portfolio segment | 30 to 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	207	1,393
1-4 single family residential | Acquired loans portfolio segment | 60 to 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	0	697
1-4 single family residential | Acquired loans portfolio segment | 90 Days or More Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	0	0
Construction, land and development | New loans portfolio segment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non- Accrual	0	0
Financing receivable, recorded investment, past due	449	467
Construction, land and development | New loans portfolio segment | 30 to 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	449	467
Construction, land and development | New loans portfolio segment | 60 to 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	0	0
Construction, land and development | New loans portfolio segment | 90 Days or More Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	0	0
Construction, land and development | Acquired loans portfolio segment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non- Accrual	0	0
Financing receivable, recorded investment, past due	0	0
Construction, land and development | Acquired loans portfolio segment | 30 to 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	0	0
Construction, land and development | Acquired loans portfolio segment | 60 to 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	0	0
Construction, land and development | Acquired loans portfolio segment | 90 Days or More Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	0	0
Home equity loans and lines of credit | New loans portfolio segment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non- Accrual	243	0
Financing receivable, recorded investment, past due	498	64
Home equity loans and lines of credit | New loans portfolio segment | 30 to 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	255	64
Home equity loans and lines of credit | New loans portfolio segment | 60 to 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	0	0
Home equity loans and lines of credit | New loans portfolio segment | 90 Days or More Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	0	0
Home equity loans and lines of credit | Acquired loans portfolio segment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non- Accrual	2,557	2,295
Financing receivable, recorded investment, past due	3,119	2,882
Home equity loans and lines of credit | Acquired loans portfolio segment | 30 to 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	520	490
Home equity loans and lines of credit | Acquired loans portfolio segment | 60 to 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	42	97
Home equity loans and lines of credit | Acquired loans portfolio segment | 90 Days or More Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	0	0
Total other loans | New loans portfolio segment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non- Accrual	0	0
Financing receivable, recorded investment, past due	0	0
Total other loans | New loans portfolio segment | 30 to 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	0	0
Total other loans | New loans portfolio segment | 60 to 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	0	0
Total other loans | New loans portfolio segment | 90 Days or More Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	0	0
Total other loans | Acquired loans portfolio segment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non- Accrual	325	900
Financing receivable, recorded investment, past due	453	990
Total other loans | Acquired loans portfolio segment | 30 to 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	0	90
Total other loans | Acquired loans portfolio segment | 60 to 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	128	0
Total other loans | Acquired loans portfolio segment | 90 Days or More Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	0	0
Commercial and industrial | New loans portfolio segment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non- Accrual	0	0
Financing receivable, recorded investment, past due	0	0
Commercial and industrial | New loans portfolio segment | 30 to 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	0	0
Commercial and industrial | New loans portfolio segment | 60 to 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	0	0
Commercial and industrial | New loans portfolio segment | 90 Days or More Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	0	0
Commercial and industrial | Acquired loans portfolio segment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non- Accrual	325	877
Financing receivable, recorded investment, past due	453	967
Commercial and industrial | Acquired loans portfolio segment | 30 to 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	0	90
Commercial and industrial | Acquired loans portfolio segment | 60 to 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	128	0
Commercial and industrial | Acquired loans portfolio segment | 90 Days or More Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	0	0
Consumer | New loans portfolio segment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non- Accrual	0	0
Financing receivable, recorded investment, past due	0	0
Consumer | New loans portfolio segment | 30 to 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	0	0
Consumer | New loans portfolio segment | 60 to 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	0	0
Consumer | New loans portfolio segment | 90 Days or More Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	0	0
Consumer | Acquired loans portfolio segment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non- Accrual	0	23
Financing receivable, recorded investment, past due	0	23
Consumer | Acquired loans portfolio segment | 30 to 59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	0	0
Consumer | Acquired loans portfolio segment | 60 to 89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	0	0
Consumer | Acquired loans portfolio segment | 90 Days or More Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Financing receivable, recorded investment, past due	$ 0	$ 0

Allowance for Loan Losses - S61

Allowance for Loan Losses - Summary of Commercial Non-ASC 310-30 and New Loans by Key Indicators of Credit Quality (Detail) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Financing Receivable, Recorded Investment [Line Items]
Loan amount	$ 6,634,894	$ 5,193,187
New loans portfolio segment
Financing Receivable, Recorded Investment [Line Items]
Loan amount	6,259,406	4,610,763
Acquired loans portfolio segment
Financing Receivable, Recorded Investment [Line Items]
Loan amount	375,488	582,424
Pass | New loans portfolio segment
Financing Receivable, Recorded Investment [Line Items]
Loan amount	4,189,395	3,033,166
Pass | Acquired loans portfolio segment
Financing Receivable, Recorded Investment [Line Items]
Loan amount	63,565	82,235
Special Mention | New loans portfolio segment
Financing Receivable, Recorded Investment [Line Items]
Loan amount	174	0
Special Mention | Acquired loans portfolio segment
Financing Receivable, Recorded Investment [Line Items]
Loan amount	0	1,352
Substandard | New loans portfolio segment
Financing Receivable, Recorded Investment [Line Items]
Loan amount	2,794	0
Substandard | Acquired loans portfolio segment
Financing Receivable, Recorded Investment [Line Items]
Loan amount	5,851	9,149
Doubtful | New loans portfolio segment
Financing Receivable, Recorded Investment [Line Items]
Loan amount	0	0
Doubtful | Acquired loans portfolio segment
Financing Receivable, Recorded Investment [Line Items]
Loan amount	0	0
Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loan amount	1,607,841	1,301,754
Commercial real estate | New loans portfolio segment
Financing Receivable, Recorded Investment [Line Items]
Loan amount	1,438,427	998,141
Commercial real estate | Pass | New loans portfolio segment
Financing Receivable, Recorded Investment [Line Items]
Loan amount	1,435,633	998,141
Commercial real estate | Pass | Acquired loans portfolio segment
Financing Receivable, Recorded Investment [Line Items]
Loan amount	33,705	50,328
Commercial real estate | Special Mention | New loans portfolio segment
Financing Receivable, Recorded Investment [Line Items]
Loan amount	0	0
Commercial real estate | Special Mention | Acquired loans portfolio segment
Financing Receivable, Recorded Investment [Line Items]
Loan amount	0	0
Commercial real estate | Substandard | New loans portfolio segment
Financing Receivable, Recorded Investment [Line Items]
Loan amount	2,794	0
Commercial real estate | Substandard | Acquired loans portfolio segment
Financing Receivable, Recorded Investment [Line Items]
Loan amount	5,081	5,657
Commercial real estate | Doubtful | New loans portfolio segment
Financing Receivable, Recorded Investment [Line Items]
Loan amount	0	0
Commercial real estate | Doubtful | Acquired loans portfolio segment
Financing Receivable, Recorded Investment [Line Items]
Loan amount	0	0
Owner-occupied commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Loan amount	788,291	545,829
Owner-occupied commercial real estate | New loans portfolio segment
Financing Receivable, Recorded Investment [Line Items]
Loan amount	769,814	524,728
Owner-occupied commercial real estate | Pass | New loans portfolio segment
Financing Receivable, Recorded Investment [Line Items]
Loan amount	769,640	524,728
Owner-occupied commercial real estate | Pass | Acquired loans portfolio segment
Financing Receivable, Recorded Investment [Line Items]
Loan amount	18,388	18,854
Owner-occupied commercial real estate | Special Mention | New loans portfolio segment
Financing Receivable, Recorded Investment [Line Items]
Loan amount	174	0
Owner-occupied commercial real estate | Special Mention | Acquired loans portfolio segment
Financing Receivable, Recorded Investment [Line Items]
Loan amount	0	0
Owner-occupied commercial real estate | Substandard | New loans portfolio segment
Financing Receivable, Recorded Investment [Line Items]
Loan amount	0	0
Owner-occupied commercial real estate | Substandard | Acquired loans portfolio segment
Financing Receivable, Recorded Investment [Line Items]
Loan amount	89	2,247
Owner-occupied commercial real estate | Doubtful | New loans portfolio segment
Financing Receivable, Recorded Investment [Line Items]
Loan amount	0	0
Owner-occupied commercial real estate | Doubtful | Acquired loans portfolio segment
Financing Receivable, Recorded Investment [Line Items]
Loan amount	0	0
Construction, land and development
Financing Receivable, Recorded Investment [Line Items]
Loan amount	675,248	571,849
Construction, land and development | New loans portfolio segment
Financing Receivable, Recorded Investment [Line Items]
Loan amount	651,253	537,494
Construction, land and development | Pass | New loans portfolio segment
Financing Receivable, Recorded Investment [Line Items]
Loan amount	651,253	537,494
Construction, land and development | Pass | Acquired loans portfolio segment
Financing Receivable, Recorded Investment [Line Items]
Loan amount	6,338	6,338
Construction, land and development | Special Mention | New loans portfolio segment
Financing Receivable, Recorded Investment [Line Items]
Loan amount	0	0
Construction, land and development | Special Mention | Acquired loans portfolio segment
Financing Receivable, Recorded Investment [Line Items]
Loan amount	0	0
Construction, land and development | Substandard | New loans portfolio segment
Financing Receivable, Recorded Investment [Line Items]
Loan amount	0	0
Construction, land and development | Substandard | Acquired loans portfolio segment
Financing Receivable, Recorded Investment [Line Items]
Loan amount	0	0
Construction, land and development | Doubtful | New loans portfolio segment
Financing Receivable, Recorded Investment [Line Items]
Loan amount	0	0
Construction, land and development | Doubtful | Acquired loans portfolio segment
Financing Receivable, Recorded Investment [Line Items]
Loan amount	0	0
Commercial and industrial
Financing Receivable, Recorded Investment [Line Items]
Loan amount	1,353,831	1,018,898
Commercial and industrial | New loans portfolio segment
Financing Receivable, Recorded Investment [Line Items]
Loan amount	1,332,869	972,803
Commercial and industrial | Pass | New loans portfolio segment
Financing Receivable, Recorded Investment [Line Items]
Loan amount	1,332,869	972,803
Commercial and industrial | Pass | Acquired loans portfolio segment
Financing Receivable, Recorded Investment [Line Items]
Loan amount	5,134	6,715
Commercial and industrial | Special Mention | New loans portfolio segment
Financing Receivable, Recorded Investment [Line Items]
Loan amount	0	0
Commercial and industrial | Special Mention | Acquired loans portfolio segment
Financing Receivable, Recorded Investment [Line Items]
Loan amount	0	1,352
Commercial and industrial | Substandard | New loans portfolio segment
Financing Receivable, Recorded Investment [Line Items]
Loan amount	0	0
Commercial and industrial | Substandard | Acquired loans portfolio segment
Financing Receivable, Recorded Investment [Line Items]
Loan amount	681	1,245
Commercial and industrial | Doubtful | New loans portfolio segment
Financing Receivable, Recorded Investment [Line Items]
Loan amount	0	0
Commercial and industrial | Doubtful | Acquired loans portfolio segment
Financing Receivable, Recorded Investment [Line Items]
Loan amount	$ 0	$ 0

Allowance for Loan Losses - S62

Allowance for Loan Losses - Summary of Loans Based on Method for Determining Allowance (Detail) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loan amount	$ 6,634,894	$ 5,193,187
Allowance for credit loss, ASC 310-30 loans	37,897	29,126	$ 22,880	$ 14,733
New loans portfolio segment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loan amount	6,259,406	4,610,763
Allowance for credit loss, ASC 310-30 loans	33,543	23,745	16,012
Acquired loans portfolio segment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loan amount	375,488	582,424
Allowance for credit loss, ASC 310-30 loans	1,410	2,270	1,382
ASC 310-30 Loans | Acquired loans portfolio segment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loan amount	196,589	355,740
Allowance for credit loss, ASC 310-30 loans	2,944	3,111	5,486
Total real estate loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loan amount	5,274,680	4,166,072
Total real estate loans | New loans portfolio segment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans - recorded investment, Individually evaluated for impairment	1,171	0
Loans - recorded investment, Collectively evaluated for impairment	4,920,998	3,632,563
Loan amount	4,922,169	3,632,563
Allowance for credit loss, Individually evaluated for impairment	287	0
Allowance for credit loss, Collectively evaluated for impairment	21,586	16,547
Total real estate loans | Acquired loans portfolio segment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans - recorded investment, Individually evaluated for impairment	7,382	8,705
Loans - recorded investment, Collectively evaluated for impairment	165,368	208,237
Allowance for credit loss, Individually evaluated for impairment	263	1,228
Allowance for credit loss, Collectively evaluated for impairment	765	978
Total real estate loans | ASC 310-30 Loans | New loans portfolio segment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loan amount	0	0
Allowance for credit loss, ASC 310-30 loans	0	0
Total real estate loans | ASC 310-30 Loans | Acquired loans portfolio segment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loan amount	179,761	316,567
Allowance for credit loss, ASC 310-30 loans	2,523	2,252
Commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loan amount	1,607,841	1,301,754
Allowance for credit loss, ASC 310-30 loans	10,123	8,450	8,206	4,458
Commercial real estate | New loans portfolio segment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans - recorded investment, Individually evaluated for impairment	581	0
Loans - recorded investment, Collectively evaluated for impairment	1,437,846	998,141
Loan amount	1,438,427	998,141
Allowance for credit loss, Individually evaluated for impairment	221	0
Allowance for credit loss, Collectively evaluated for impairment	7,271	5,468
Allowance for credit loss, ASC 310-30 loans	7,492	5,468	4,456
Commercial real estate | Acquired loans portfolio segment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans - recorded investment, Individually evaluated for impairment	4,720	5,282
Loans - recorded investment, Collectively evaluated for impairment	34,066	50,703
Allowance for credit loss, Individually evaluated for impairment	175	829
Allowance for credit loss, Collectively evaluated for impairment	201	255
Allowance for credit loss, ASC 310-30 loans	376	1,084	495
Commercial real estate | ASC 310-30 Loans | New loans portfolio segment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loan amount	0	0
Allowance for credit loss, ASC 310-30 loans	0	0
Commercial real estate | ASC 310-30 Loans | Acquired loans portfolio segment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loan amount	130,628	247,628
Allowance for credit loss, ASC 310-30 loans	2,255	1,898	3,255
Owner-occupied commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loan amount	788,291	545,829
Allowance for credit loss, ASC 310-30 loans	2,597	2,243	1,020	376
Owner-occupied commercial real estate | New loans portfolio segment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans - recorded investment, Individually evaluated for impairment	0	0
Loans - recorded investment, Collectively evaluated for impairment	769,814	524,728
Loan amount	769,814	524,728
Allowance for credit loss, Individually evaluated for impairment	0	0
Allowance for credit loss, Collectively evaluated for impairment	2,536	1,780
Allowance for credit loss, ASC 310-30 loans	2,536	1,780	962
Owner-occupied commercial real estate | Acquired loans portfolio segment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans - recorded investment, Individually evaluated for impairment	0	2,244
Loans - recorded investment, Collectively evaluated for impairment	18,477	18,857
Allowance for credit loss, Individually evaluated for impairment	0	399
Allowance for credit loss, Collectively evaluated for impairment	61	64
Allowance for credit loss, ASC 310-30 loans	61	463	58
Owner-occupied commercial real estate | ASC 310-30 Loans | New loans portfolio segment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loan amount	0	0
Allowance for credit loss, ASC 310-30 loans	0	0
Owner-occupied commercial real estate | ASC 310-30 Loans | Acquired loans portfolio segment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loan amount	0	0
Allowance for credit loss, ASC 310-30 loans	0	0	0
1-4 single family residential
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loan amount	2,111,186	1,666,288
Allowance for credit loss, ASC 310-30 loans	7,379	6,425	4,740	1,443
1-4 single family residential | New loans portfolio segment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans - recorded investment, Individually evaluated for impairment	524	0
Loans - recorded investment, Collectively evaluated for impairment	2,012,332	1,541,255
Loan amount	2,012,856	1,541,255
Allowance for credit loss, Individually evaluated for impairment	0	0
Allowance for credit loss, Collectively evaluated for impairment	7,049	6,067
Allowance for credit loss, ASC 310-30 loans	7,049	6,067	4,001
1-4 single family residential | Acquired loans portfolio segment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans - recorded investment, Individually evaluated for impairment	1,612	263
Loans - recorded investment, Collectively evaluated for impairment	65,242	83,848
Allowance for credit loss, Individually evaluated for impairment	88	0
Allowance for credit loss, Collectively evaluated for impairment	213	332
Allowance for credit loss, ASC 310-30 loans	301	332	414
1-4 single family residential | ASC 310-30 Loans | New loans portfolio segment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loan amount	0	0
Allowance for credit loss, ASC 310-30 loans	0	0
1-4 single family residential | ASC 310-30 Loans | Acquired loans portfolio segment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loan amount	31,476	40,922
Allowance for credit loss, ASC 310-30 loans	29	26	325
Construction, land and development
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loan amount	675,248	571,849
Allowance for credit loss, ASC 310-30 loans	4,677	3,404	2,456	1,819
Construction, land and development | New loans portfolio segment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans - recorded investment, Individually evaluated for impairment	0	0
Loans - recorded investment, Collectively evaluated for impairment	651,253	537,494
Loan amount	651,253	537,494
Allowance for credit loss, Individually evaluated for impairment	0	0
Allowance for credit loss, Collectively evaluated for impairment	4,391	3,040
Allowance for credit loss, ASC 310-30 loans	4,391	3,040	1,723
Construction, land and development | Acquired loans portfolio segment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans - recorded investment, Individually evaluated for impairment	0	0
Loans - recorded investment, Collectively evaluated for impairment	6,338	6,338
Allowance for credit loss, Individually evaluated for impairment	0	0
Allowance for credit loss, Collectively evaluated for impairment	47	36
Allowance for credit loss, ASC 310-30 loans	47	36	75
Construction, land and development | ASC 310-30 Loans | New loans portfolio segment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loan amount	0	0
Allowance for credit loss, ASC 310-30 loans	0	0
Construction, land and development | ASC 310-30 Loans | Acquired loans portfolio segment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loan amount	17,657	28,017
Allowance for credit loss, ASC 310-30 loans	239	328	658
Home equity loans and lines of credit
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loan amount	92,114	80,352
Allowance for credit loss, ASC 310-30 loans	648	483	355	265
Home equity loans and lines of credit | New loans portfolio segment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans - recorded investment, Individually evaluated for impairment	66	0
Loans - recorded investment, Collectively evaluated for impairment	49,753	30,945
Loan amount	49,819	30,945
Allowance for credit loss, Individually evaluated for impairment	66	0
Allowance for credit loss, Collectively evaluated for impairment	339	192
Allowance for credit loss, ASC 310-30 loans	405	192	70
Home equity loans and lines of credit | Acquired loans portfolio segment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans - recorded investment, Individually evaluated for impairment	1,050	916
Loans - recorded investment, Collectively evaluated for impairment	41,245	48,491
Allowance for credit loss, Individually evaluated for impairment	0	0
Allowance for credit loss, Collectively evaluated for impairment	243	291
Allowance for credit loss, ASC 310-30 loans	243	291	285
Home equity loans and lines of credit | ASC 310-30 Loans | New loans portfolio segment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loan amount	0	0
Allowance for credit loss, ASC 310-30 loans	0	0
Home equity loans and lines of credit | ASC 310-30 Loans | Acquired loans portfolio segment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loan amount	0	0
Allowance for credit loss, ASC 310-30 loans	0	0	0
Total other loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loan amount	1,360,214	1,027,115
Total other loans | New loans portfolio segment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans - recorded investment, Individually evaluated for impairment	0	0
Loans - recorded investment, Collectively evaluated for impairment	1,337,237	978,200
Loan amount	1,337,237	978,200
Allowance for credit loss, Individually evaluated for impairment	0	0
Allowance for credit loss, Collectively evaluated for impairment	11,670	7,198
Total other loans | Acquired loans portfolio segment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans - recorded investment, Individually evaluated for impairment	325	877
Loans - recorded investment, Collectively evaluated for impairment	5,824	8,865
Allowance for credit loss, Individually evaluated for impairment	325	0
Allowance for credit loss, Collectively evaluated for impairment	57	64
Total other loans | ASC 310-30 Loans | New loans portfolio segment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loan amount	0	0
Allowance for credit loss, ASC 310-30 loans	0	0
Total other loans | ASC 310-30 Loans | Acquired loans portfolio segment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loan amount	16,828	39,173
Allowance for credit loss, ASC 310-30 loans	421	859
Commercial and industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loan amount	1,353,831	1,018,898
Allowance for credit loss, ASC 310-30 loans	12,245	7,665	5,745	6,198
Commercial and industrial | New loans portfolio segment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans - recorded investment, Individually evaluated for impairment	0	0
Loans - recorded investment, Collectively evaluated for impairment	1,332,869	972,803
Loan amount	1,332,869	972,803
Allowance for credit loss, Individually evaluated for impairment	0	0
Allowance for credit loss, Collectively evaluated for impairment	11,592	7,152
Allowance for credit loss, ASC 310-30 loans	11,592	7,152	4,738
Commercial and industrial | Acquired loans portfolio segment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans - recorded investment, Individually evaluated for impairment	325	877
Loans - recorded investment, Collectively evaluated for impairment	5,490	8,435
Allowance for credit loss, Individually evaluated for impairment	325	0
Allowance for credit loss, Collectively evaluated for impairment	51	60
Allowance for credit loss, ASC 310-30 loans	376	60	49
Commercial and industrial | ASC 310-30 Loans | New loans portfolio segment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loan amount	0	0
Allowance for credit loss, ASC 310-30 loans	0	0
Commercial and industrial | ASC 310-30 Loans | Acquired loans portfolio segment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loan amount	15,147	36,783
Allowance for credit loss, ASC 310-30 loans	277	453	958
Consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loan amount	6,383	8,217
Allowance for credit loss, ASC 310-30 loans	228	456	358	$ 174
Consumer | New loans portfolio segment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans - recorded investment, Individually evaluated for impairment	0	0
Loans - recorded investment, Collectively evaluated for impairment	4,368	5,397
Loan amount	4,368	5,397
Allowance for credit loss, Individually evaluated for impairment	0	0
Allowance for credit loss, Collectively evaluated for impairment	78	46
Allowance for credit loss, ASC 310-30 loans	78	46	62
Consumer | Acquired loans portfolio segment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans - recorded investment, Individually evaluated for impairment	0	0
Loans - recorded investment, Collectively evaluated for impairment	334	430
Allowance for credit loss, Individually evaluated for impairment	0	0
Allowance for credit loss, Collectively evaluated for impairment	6	4
Allowance for credit loss, ASC 310-30 loans	6	4	6
Consumer | ASC 310-30 Loans | New loans portfolio segment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loan amount	0	0
Allowance for credit loss, ASC 310-30 loans	0	0
Consumer | ASC 310-30 Loans | Acquired loans portfolio segment
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loan amount	1,681	2,390
Allowance for credit loss, ASC 310-30 loans	$ 144	$ 406	$ 290

Allowance for Loan Losses - S63

Allowance for Loan Losses - Summary of Impaired Loans Evaluated for Specific Reserves (Detail) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Total real estate loans | New loans portfolio segment
Financing Receivable, Impaired [Line Items]
Impaired loans - with allowance, Recorded investment	$ 647	$ 0
Impaired loans - with allowance, Unpaid principal balance	647	0
Impaired loans - with allowance, Related allowance	287	0
Impaired loans - with no allowance, Recorded investment	524	0
Impaired loans - with no allowance, Unpaid principal balance	524	0
Total real estate loans | Acquired loans portfolio segment
Financing Receivable, Impaired [Line Items]
Impaired loans - with allowance, Recorded investment	1,195	6,799
Impaired loans - with allowance, Unpaid principal balance	1,162	7,234
Impaired loans - with allowance, Related allowance	263	1,228
Impaired loans - with no allowance, Recorded investment	6,187	1,906
Impaired loans - with no allowance, Unpaid principal balance	7,859	2,062
Commercial real estate | New loans portfolio segment
Financing Receivable, Impaired [Line Items]
Impaired loans - with allowance, Recorded investment	581	0
Impaired loans - with allowance, Unpaid principal balance	581	0
Impaired loans - with allowance, Related allowance	221	0
Impaired loans - with no allowance, Recorded investment	0	0
Impaired loans - with no allowance, Unpaid principal balance	0	0
Commercial real estate | Acquired loans portfolio segment
Financing Receivable, Impaired [Line Items]
Impaired loans - with allowance, Recorded investment	630	4,555
Impaired loans - with allowance, Unpaid principal balance	650	4,924
Impaired loans - with allowance, Related allowance	175	829
Impaired loans - with no allowance, Recorded investment	4,090	727
Impaired loans - with no allowance, Unpaid principal balance	5,397	750
Owner-occupied commercial real estate | New loans portfolio segment
Financing Receivable, Impaired [Line Items]
Impaired loans - with allowance, Recorded investment	0	0
Impaired loans - with allowance, Unpaid principal balance	0	0
Impaired loans - with allowance, Related allowance	0	0
Impaired loans - with no allowance, Recorded investment	0	0
Impaired loans - with no allowance, Unpaid principal balance	0	0
Owner-occupied commercial real estate | Acquired loans portfolio segment
Financing Receivable, Impaired [Line Items]
Impaired loans - with allowance, Recorded investment	0	2,244
Impaired loans - with allowance, Unpaid principal balance	0	2,310
Impaired loans - with allowance, Related allowance	0	399
Impaired loans - with no allowance, Recorded investment	0	0
Impaired loans - with no allowance, Unpaid principal balance	0	0
1-4 single family residential | New loans portfolio segment
Financing Receivable, Impaired [Line Items]
Impaired loans - with allowance, Recorded investment	0	0
Impaired loans - with allowance, Unpaid principal balance	0	0
Impaired loans - with allowance, Related allowance	0	0
Impaired loans - with no allowance, Recorded investment	524	0
Impaired loans - with no allowance, Unpaid principal balance	524	0
1-4 single family residential | Acquired loans portfolio segment
Financing Receivable, Impaired [Line Items]
Impaired loans - with allowance, Recorded investment	565	0
Impaired loans - with allowance, Unpaid principal balance	512	0
Impaired loans - with allowance, Related allowance	88	0
Impaired loans - with no allowance, Recorded investment	1,047	263
Impaired loans - with no allowance, Unpaid principal balance	1,047	264
Construction, land and development | New loans portfolio segment
Financing Receivable, Impaired [Line Items]
Impaired loans - with allowance, Recorded investment	0	0
Impaired loans - with allowance, Unpaid principal balance	0	0
Impaired loans - with allowance, Related allowance	0	0
Impaired loans - with no allowance, Recorded investment	0	0
Impaired loans - with no allowance, Unpaid principal balance	0	0
Construction, land and development | Acquired loans portfolio segment
Financing Receivable, Impaired [Line Items]
Impaired loans - with allowance, Recorded investment	0	0
Impaired loans - with allowance, Unpaid principal balance	0	0
Impaired loans - with allowance, Related allowance	0	0
Impaired loans - with no allowance, Recorded investment	0	0
Impaired loans - with no allowance, Unpaid principal balance	0	0
Home equity loans and lines of credit | New loans portfolio segment
Financing Receivable, Impaired [Line Items]
Impaired loans - with allowance, Recorded investment	66	0
Impaired loans - with allowance, Unpaid principal balance	66	0
Impaired loans - with allowance, Related allowance	66	0
Impaired loans - with no allowance, Recorded investment	0	0
Impaired loans - with no allowance, Unpaid principal balance	0	0
Home equity loans and lines of credit | Acquired loans portfolio segment
Financing Receivable, Impaired [Line Items]
Impaired loans - with allowance, Recorded investment	0	0
Impaired loans - with allowance, Unpaid principal balance	0	0
Impaired loans - with allowance, Related allowance	0	0
Impaired loans - with no allowance, Recorded investment	1,050	916
Impaired loans - with no allowance, Unpaid principal balance	1,415	1,048
Total other loans | New loans portfolio segment
Financing Receivable, Impaired [Line Items]
Impaired loans - with allowance, Recorded investment	0	0
Impaired loans - with allowance, Unpaid principal balance	0	0
Impaired loans - with allowance, Related allowance	0	0
Impaired loans - with no allowance, Recorded investment	0	0
Impaired loans - with no allowance, Unpaid principal balance	0	0
Total other loans | Acquired loans portfolio segment
Financing Receivable, Impaired [Line Items]
Impaired loans - with allowance, Recorded investment	325	0
Impaired loans - with allowance, Unpaid principal balance	325	0
Impaired loans - with allowance, Related allowance	325	0
Impaired loans - with no allowance, Recorded investment	0	877
Impaired loans - with no allowance, Unpaid principal balance	0	1,825
Commercial and industrial | New loans portfolio segment
Financing Receivable, Impaired [Line Items]
Impaired loans - with allowance, Recorded investment	0	0
Impaired loans - with allowance, Unpaid principal balance	0	0
Impaired loans - with allowance, Related allowance	0	0
Impaired loans - with no allowance, Recorded investment	0	0
Impaired loans - with no allowance, Unpaid principal balance	0	0
Commercial and industrial | Acquired loans portfolio segment
Financing Receivable, Impaired [Line Items]
Impaired loans - with allowance, Recorded investment	325	0
Impaired loans - with allowance, Unpaid principal balance	325	0
Impaired loans - with allowance, Related allowance	325	0
Impaired loans - with no allowance, Recorded investment	0	877
Impaired loans - with no allowance, Unpaid principal balance	0	1,825
Consumer | New loans portfolio segment
Financing Receivable, Impaired [Line Items]
Impaired loans - with allowance, Recorded investment	0	0
Impaired loans - with allowance, Unpaid principal balance	0	0
Impaired loans - with allowance, Related allowance	0	0
Impaired loans - with no allowance, Recorded investment	0	0
Impaired loans - with no allowance, Unpaid principal balance	0	0
Consumer | Acquired loans portfolio segment
Financing Receivable, Impaired [Line Items]
Impaired loans - with allowance, Recorded investment	0	0
Impaired loans - with allowance, Unpaid principal balance	0	0
Impaired loans - with allowance, Related allowance	0	0
Impaired loans - with no allowance, Recorded investment	0	0
Impaired loans - with no allowance, Unpaid principal balance	$ 0	$ 0

Allowance for Loan Losses - S64

Allowance for Loan Losses - Summary of Impaired Loans Average Recorded Investment and Interest Income Recognized (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Total real estate loans
Financing Receivable, Impaired [Line Items]
Impaired loans with no related allowance - Average recorded investment	$ 6,333	$ 1,472
Impaired loans with no related allowance - Interest income recognized	0	0
Impaired loans with an allowance - Average recorded investment	1,427	5,933
Impaired loans with an allowance - Interest income recognized	0	0
Commercial real estate
Financing Receivable, Impaired [Line Items]
Impaired loans with no related allowance - Average recorded investment	4,245	414
Impaired loans with no related allowance - Interest income recognized	0	0
Impaired loans with an allowance - Average recorded investment	959	4,789
Impaired loans with an allowance - Interest income recognized	0	0
Owner-occupied commercial real estate
Financing Receivable, Impaired [Line Items]
Impaired loans with no related allowance - Average recorded investment	0	0
Impaired loans with no related allowance - Interest income recognized	0	0
Impaired loans with an allowance - Average recorded investment	0	1,144
Impaired loans with an allowance - Interest income recognized	0	0
1-4 single family residential
Financing Receivable, Impaired [Line Items]
Impaired loans with no related allowance - Average recorded investment	816	133
Impaired loans with no related allowance - Interest income recognized	0	0
Impaired loans with an allowance - Average recorded investment	424	0
Impaired loans with an allowance - Interest income recognized	0	0
Construction, land and development
Financing Receivable, Impaired [Line Items]
Impaired loans with no related allowance - Average recorded investment	0	0
Impaired loans with no related allowance - Interest income recognized	0	0
Impaired loans with an allowance - Average recorded investment	0	0
Impaired loans with an allowance - Interest income recognized	0	0
Home equity loans and lines of credit
Financing Receivable, Impaired [Line Items]
Impaired loans with no related allowance - Average recorded investment	1,272	925
Impaired loans with no related allowance - Interest income recognized	0	0
Impaired loans with an allowance - Average recorded investment	44	0
Impaired loans with an allowance - Interest income recognized	0	0
Total other loans
Financing Receivable, Impaired [Line Items]
Impaired loans with no related allowance - Average recorded investment	0	627
Impaired loans with no related allowance - Interest income recognized	0	0
Impaired loans with an allowance - Average recorded investment	170	0
Impaired loans with an allowance - Interest income recognized	0	0
Commercial and industrial
Financing Receivable, Impaired [Line Items]
Impaired loans with no related allowance - Average recorded investment	0	627
Impaired loans with no related allowance - Interest income recognized	0	0
Impaired loans with an allowance - Average recorded investment	170	0
Impaired loans with an allowance - Interest income recognized	0	0
Consumer
Financing Receivable, Impaired [Line Items]
Impaired loans with no related allowance - Average recorded investment	0	0
Impaired loans with no related allowance - Interest income recognized	0	0
Impaired loans with an allowance - Average recorded investment	0	0
Impaired loans with an allowance - Interest income recognized	$ 0	$ 0

Covered Assets and Loss Shari65

Covered Assets and Loss Sharing Agreements - Additional Information (Detail) - USD ($) $ in Thousands	Mar. 04, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Banking and Thrift [Abstract]
Consideration paid	$ 14,800	$ 0	$ 14,815	$ 0
Loss on termination of agreement with FDIC	$ 65,500
Increases in the loss share indemnification asset, were included in non-interest income				$ 3,900

Covered Assets and Loss Shari66

Covered Assets and Loss Sharing Agreements - Summary of Changes in Loss Share Indemnification Asset (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
FDIC Indemnification Asset [Roll Forward]
Balance at beginning of period	$ 0	$ 63,168	$ 87,229
Termination of FDIC loss sharing agreements	0	(63,168)	0
Reimbursable expenses	0	0	4,999
Amortization	0	0	(24,653)
Income resulting from impairment and charge-off of covered assets, net	0	0	3,948
Expense resulting from recoupment and disposition of covered assets, net	0	0	(3,627)
FDIC claims submissions	0	0	(4,728)
Balance at end of period	$ 0	$ 0	$ 63,168

Covered Assets and Loss Shari67

Covered Assets and Loss Sharing Agreements - Summary of Changes in Clawback Liability included Other Liabilities (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Other Liabilities Disclosure [Abstract]
Balance at beginning of period	$ 0	$ 13,846	$ 11,753
Termination of FDIC loss sharing agreements	0	(13,846)	0
Amortization impact	0	0	748
Remeasurement impact	0	0	1,345
Balance at end of period	$ 0	$ 0	$ 13,846

Premises and Equipment - Compon

Premises and Equipment - Components of Premises and Equipment (Detail) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Property, Plant and Equipment, Net [Abstract]
Land	$ 7,624	$ 8,256
Building and improvements	24,653	25,413
Furniture, fixtures and equipment	13,197	11,836
Leasehold improvements	4,454	2,978
Construction in Process	525	240
Software	3,021	2,859
Total	53,474	51,582
Less: Accumulated depreciation	(16,822)	(14,628)
Total premises and equipment, net	$ 36,652	$ 36,954

Premises and Equipment - Additi

Premises and Equipment - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Property, Plant and Equipment, Net [Abstract]
Depreciation expense	$ 3.6	$ 3.8	$ 3.9
Rental expense	$ 7.6	$ 7.5	$ 7.3

Premises and Equipment - Schedu

Premises and Equipment - Schedule of Future Minimum Rental Payments Under Non-Cancellable Operating Leases (Details) $ in Thousands	Dec. 31, 2016USD ($)
Property, Plant and Equipment [Abstract]
2,017	$ 5,128
2,018	4,994
2,019	4,597
2,020	4,336
2,021	3,118
Thereafter	14,737
Total	$ 36,910

Goodwill and Intangibles - Summ

Goodwill and Intangibles - Summary of Goodwill and Other Intangible Assets (Detail) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill	$ 81,204	$ 81,204
Core deposit intangible	14,370	14,370
Less: Accumulated amortization	(9,679)	(8,490)
Net core deposit intangible	$ 4,691	$ 5,880

Goodwill and Intangibles - Addi

Goodwill and Intangibles - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization expense	$ 1,189	$ 1,631	$ 1,710

Goodwill and Intangibles - Esti

Goodwill and Intangibles - Estimated Amortization Expense for Core Deposit Intangible Assets to be Recognized (Detail) - Core deposit intangible $ in Thousands	Dec. 31, 2016USD ($)
Acquired Finite-Lived Intangible Assets [Line Items]
Expected amortization expense in 2017	$ 1,023
Expected amortization expense in 2018	1,023
Expected amortization expense in 2019	1,023
Expected amortization expense in 2020	491
Expected amortization expense in 2021	$ 360

Derivatives - Additional Inform

Derivatives - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Derivative [Line Items]
Carrying value of pledged securities	$ 594	$ 939.6
Floating rate terms within interest rate contracts were indexed	1-month LIBOR	1-month LIBOR
Customer swap fees
Derivative [Line Items]
Customer swap fees in non-interest income in the accompanying consolidated statements of operations	$ 4.4	$ 5.2	$ 4.5
Interest rate swap
Derivative [Line Items]
Carrying value of pledged securities	$ 24.7

Derivatives - Summary of Deriva

Derivatives - Summary of Derivatives Outstanding Included in Other Assets and Liabilities (Detail) - Not designated as hedging instrument - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Derivatives, Fair Value [Line Items]
Derivative assets, notional	$ 891,274	$ 698,473
Derivative assets, fair value	15,268	21,553
Derivative liabilities, notional	891,274	698,473
Derivative liabilities, fair value	15,268	21,553
Interest rate swap | Interest rate contracts—pay floating, receive fixed
Derivatives, Fair Value [Line Items]
Derivative assets, notional	708,426	690,175
Derivative assets, fair value	15,268	21,553
Derivative liabilities, notional	182,848	8,298
Derivative liabilities, fair value	2,908	2
Interest rate swap | Interest rate contracts—pay fixed, receive floating
Derivatives, Fair Value [Line Items]
Derivative assets, notional	182,848	8,298
Derivative assets, fair value	0	0
Derivative liabilities, notional	708,426	690,175
Derivative liabilities, fair value	$ 12,360	$ 21,551

Derivatives - Summary of Gross

Derivatives - Summary of Gross and Net Fair Values of Derivatives Outstanding Included in Other Liabilities (Detail) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Offsetting Liabilities [Line Items]
Gross amounts of recognized liabilities	$ 15,268	$ 21,553
Gross amounts offset in the consolidated balance sheets	(2,908)	(2)
Net amounts in the consolidated balance sheets	12,360	21,551
Interest rate swap | Counterparty A—Interest rate contracts
Offsetting Liabilities [Line Items]
Gross amounts of recognized liabilities	15,268	21,553
Gross amounts offset in the consolidated balance sheets	(2,908)	(2)
Net amounts in the consolidated balance sheets	$ 12,360	$ 21,551

Deposits - Summary of Company's

Deposits - Summary of Company's Deposits by Category (Detail) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Banking and Thrift [Abstract]
Noninterest-bearing demand deposits	$ 905,905	$ 637,047
Interest-bearing demand deposits	1,004,452	608,454
Interest-bearing NOW accounts	398,823	347,832
Savings and money market accounts	2,780,697	1,979,132
Time deposits	2,215,794	1,858,173
Total deposits	7,305,671	5,430,638
Time deposits $100,000 and greater	1,675,162	1,323,520
Time deposits greater than $250,000	$ 843,683	$ 587,590

Deposits - Additional Informati

Deposits - Additional Information (Detail) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Banking and Thrift [Abstract]
Aggregate amount of overdraft demand deposits reclassified to loans	$ 468
Aggregate amount of time deposits, Year one	1,580,000
Aggregate amount of time deposits, Year two	463,800
Aggregate amount of time deposits, Year three	160,000
Aggregate amount of time deposits, Year four	11,000
Aggregate amount of time deposits, Year five	2,700
Brokered deposits through an insured deposits sweep program	693,900	$ 425,100
Brokered certificates of deposit	$ 1,200	$ 3,300

FHLB and Other Borrowings - FHL

FHLB and Other Borrowings - FHLB Advances and Other Borrowings Outstanding (Detail) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Federal home loan bank, advances, maturities summary, due in next 12 months	$ 473,870	$ 843,754
Federal home loan bank, advances, maturities summary, due in year 2	50,000	72,500
Federal home loan bank, advances, maturities summary, due in year 3	200,000	50,000
Total contractual outstanding	723,870	966,254
Fair value adjustment	846	3,482
Total FHLB advances and securities sold under repurchase agreements	724,716	969,736
Retail repurchase agreements	26,387	13,447
Total borrowings	$ 751,103	$ 983,183
2,017
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Range of contractual interest rate (minimum)	0.62%	0.35%
Range of contractual interest rate (maximum)	4.35%	1.35%
2,018
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Range of contractual interest rate at period end	1.53%
Range of contractual interest rate (minimum)		4.05%
Range of contractual interest rate (maximum)		4.35%
2019 and beyond
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Range of contractual interest rate at period end		1.53%
Range of contractual interest rate (minimum)	1.34%
Range of contractual interest rate (maximum)	1.61%

FHLB and Other Borrowings - Add

FHLB and Other Borrowings - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Weighted-average interest rates on FHLB	0.94%	0.41%
Additional capacity to borrow from FHLB	$ 1,520,000,000
Unused credit lines with financial institutions	345,000,000
Federal home loan bank advances
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Interest expense on FHLB advances	5,800,000	$ 4,000,000	$ 5,000,000
Reduction for amortization of fair value adjustment on FHLB advances			$ 380,000
Weighted average
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Advances with FHLB	$ 612,100,000	$ 973,400,000

Regulatory Capital - Regulatory

Regulatory Capital - Regulatory Capital Levels (Detail) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Company
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Tier 1 leverage ratio, actual amount	$ 891,584	$ 717,229
Tier 1 leverage ratio, actual ratio	10.30%	10.30%
Tier 1 leverage ratio, minimum capital requirement, amount	$ 346,518	$ 278,319
Tier 1 leverage ratio, minimum capital requirement, ratio	4.00%	4.00%
Tier 1 leverage ratio, minimum to be well capitalized, amount	$ 433,148	$ 347,899
Tier 1 leverage ratio, minimum to be well capitalized, ratio	5.00%	5.00%
Common equity tier 1 capital ratio, actual amount	$ 891,584	$ 717,229
Common equity tier 1 capital ratio, actual ratio	11.90%	12.10%
Common equity tier 1 capital ratio, minimum capital requirement amount	$ 336,328	$ 267,511
Common equity tier 1 capital ratio, minimum capital requirement ratio	4.50%	4.50%
Common equity tier 1 capital ratio, minimum to be well capitalized amount	$ 485,807	$ 386,405
Common equity tier 1 capital ratio, minimum to be well capitalized ratio	6.50%	6.50%
Tier 1 risk-based capital ratio, actual amount	$ 891,584	$ 717,229
Tier 1 risk-based capital ratio, actual ratio	11.90%	12.10%
Tier 1 risk-based capital ratio, minimum capital requirement, amount	$ 448,437	$ 356,682
Tier 1 risk-based capital ratio, minimum capital requirement, ratio	6.00%	6.00%
Tier 1 risk-based capital ratio, minimum to be well capitalized, amount	$ 597,916	$ 475,576
Tier 1 risk-based capital ratio, minimum to be well capitalized, ratio	8.00%	8.00%
Total risk-based capital ratio, actual amount	$ 930,821	$ 717,229
Total risk-based capital ratio, actual ratio	12.50%	12.10%
Total risk-based capital ratio, minimum capital requirement, amount	$ 597,916	$ 475,576
Total risk-based capital ratio, minimum capital requirement, ratio	8.00%	8.00%
Total risk-based capital ratio, minimum to be Well capitalized, amount	$ 747,395	$ 594,470
Total risk-based capital ratio, minimum to be well capitalized, ratio	10.00%	10.00%
Bank
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Tier 1 leverage ratio, actual amount	$ 795,207	$ 678,608
Tier 1 leverage ratio, actual ratio	9.30%	9.90%
Tier 1 leverage ratio, minimum capital requirement, amount	$ 340,856	$ 273,721
Tier 1 leverage ratio, minimum capital requirement, ratio	4.00%	4.00%
Tier 1 leverage ratio, minimum to be well capitalized, amount	$ 426,070	$ 342,151
Tier 1 leverage ratio, minimum to be well capitalized, ratio	5.00%	5.00%
Common equity tier 1 capital ratio, actual amount	$ 795,207	$ 678,608
Common equity tier 1 capital ratio, actual ratio	10.90%	11.60%
Common equity tier 1 capital ratio, minimum capital requirement amount	$ 329,194	$ 262,378
Common equity tier 1 capital ratio, minimum capital requirement ratio	4.50%	4.50%
Common equity tier 1 capital ratio, minimum to be well capitalized amount	$ 475,503	$ 378,991
Common equity tier 1 capital ratio, minimum to be well capitalized ratio	6.50%	6.50%
Tier 1 risk-based capital ratio, actual amount	$ 795,207	$ 678,608
Tier 1 risk-based capital ratio, actual ratio	10.90%	11.60%
Tier 1 risk-based capital ratio, minimum capital requirement, amount	$ 438,926	$ 349,838
Tier 1 risk-based capital ratio, minimum capital requirement, ratio	6.00%	6.00%
Tier 1 risk-based capital ratio, minimum to be well capitalized, amount	$ 585,234	$ 466,450
Tier 1 risk-based capital ratio, minimum to be well capitalized, ratio	8.00%	8.00%
Total risk-based capital ratio, actual amount	$ 834,679	$ 678,608
Total risk-based capital ratio, actual ratio	11.40%	11.60%
Total risk-based capital ratio, minimum capital requirement, amount	$ 585,234	$ 466,450
Total risk-based capital ratio, minimum capital requirement, ratio	8.00%	8.00%
Total risk-based capital ratio, minimum to be Well capitalized, amount	$ 731,543	$ 583,063
Total risk-based capital ratio, minimum to be well capitalized, ratio	10.00%	10.00%

Regulatory Capital - Additional

Regulatory Capital - Additional Information (Detail) - FDIC order	12 Months Ended
	Dec. 31, 2016
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Ratio of Tier 1 common equity to total assets	10.00%
Minimum period required to maintain Tier 1 common equity to total assets ratio	3 years

Accumulated Other Comprehensi83

Accumulated Other Comprehensive Income - Schedule of Changes in Accumulated Other Comprehensive Income (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Changes In Accumulated Other Comprehensive Income [Abstract]
Balance at beginning of period	$ (15,371)	$ 1,106	$ (2,565)
Balance at beginning of period, tax effect	5,928	(427)	990
Balance at beginning of period, net of tax	(9,443)	679	(1,575)
Balance at end of period	(6,504)	(15,371)	1,106
Balance at end of period, tax effect	2,509	5,928	(427)
Balance at end of period, net of tax	(3,995)	(9,443)	679
Unrealized Gain (Loss) on Investment Securities Available for Sale
Changes In Accumulated Other Comprehensive Income [Abstract]
Net unrealized holdings gain (loss) arising during the period	11,582	(13,997)	11,481
Net unrealized holdings gain (loss) arising during the period, tax effect	(4,467)	5,399	(4,430)
Net unrealized holdings gain (loss) arising during the period, net of tax	7,115	(8,598)	7,051
Amounts reclassified to (gain) loss on investment securities	(2,715)	(2,480)	(7,810)
Amounts reclassified to (gain) loss on investment securities, tax effect	1,048	956	3,013
Amounts reclassified to (gain) loss on investment securities, net of tax	$ (1,667)	$ (1,524)	$ (4,797)

Stockholders' Equity - Addition

Stockholders' Equity - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2016USD ($)Class_of_Stock$ / sharesshares	Dec. 31, 2015USD ($)$ / sharesshares	Dec. 31, 2012USD ($)$ / sharesshares	Dec. 31, 2009$ / sharesshares	Dec. 31, 2010shares
Capital Unit [Line Items]
Number of classes of common stock | Class_of_Stock	2
Common stock due to conversion, shares	Each share of Class B common stock is convertible into one share of Class A common stock, subject to certain restrictions
Increase (decrease) in shares issued and outstanding due to conversion	3,545,408	3,206,166
Common stock exchange ratio	100.00%
Consideration paid or received on conversion of stock | $	$ 0
Preferred stock, shares authorized (in shares)	10,000,000	10,000,000
Preferred stock, shares issued (in shares)	0
Preferred stock, shares outstanding (in shares)		0
Preferred stock, par value (in dollars per share) | $ / shares	$ 0.001	$ 0.001
Treasury stock, value acquired, cost | $	$ 23,738,000	$ 34,884,000
Treasury stock, shares (in shares)	2,886,621	2,169,506
Treasury stock, value | $	$ 77,373,000	$ 53,635,000
Fair value adjustments related to warrants | $		$ 4,000,000
2009 Warrants
Capital Unit [Line Items]
Award description	The recipients can only exercise the warrants on the sixth, eighteenth, and thirtieth month anniversaries of the occurrence of a Qualified IPO
Warrant expense description	Prior to December 31, 2013, the Company had not recorded any expense in the accompanying consolidated financial statements associated with the Original 2009 Warrants as it was a distribution in respect of its then existing equity.
Warrants expiration date	Nov. 12, 2019
Warrants outstanding (in shares)	2,685,927
Stock-based compensation expense | $	$ 0		$ 0
2010 Warrants
Capital Unit [Line Items]
Stock-based compensation expense | $			$ 0
Class A common stock
Capital Unit [Line Items]
Treasury stock, shares repurchased (in shares)	(717,115)	(1,050,062)
Treasury stock, per share (in dollars per share) | $ / shares	$ 33.08	$ 33.20
Treasury stock, value acquired, cost | $	$ 23,700,000	$ 34,900,000
Treasury stock, shares (in shares)	2,694,489	1,977,374
Class A common stock | 2009 Warrants
Capital Unit [Line Items]
Warrants to purchase shares (in shares)				3,310,428
Number of shares each warrant entitles to purchase (in shares)				1
Class A common stock | 2009 Warrants | Minimum
Capital Unit [Line Items]
Exercise price range (in dollars per share) | $ / shares				$ 24.24
Class A common stock | 2009 Warrants | Maximum
Capital Unit [Line Items]
Exercise price range (in dollars per share) | $ / shares				$ 28.28
Class A common stock | 2010 Warrants | Directors and employees
Capital Unit [Line Items]
Warrants to purchase shares (in shares)					2,142,000
Number of shares each warrant entitles to purchase (in shares)			1
Warrant expense description	The Company has not recorded any expense in the accompanying consolidated financial statements associated with the 2010 Warrants
Class A common stock | 2010 Warrants | Minimum | Directors and employees
Capital Unit [Line Items]
Exercise price range (in dollars per share) | $ / shares			$ 26
Class A common stock | 2010 Warrants | Maximum | Directors and employees
Capital Unit [Line Items]
Exercise price range (in dollars per share) | $ / shares			$ 32
Class B common stock
Capital Unit [Line Items]
Increase (decrease) in shares issued and outstanding due to conversion	(3,545,408)	(3,206,166)
Treasury stock, shares (in shares)	192,132	192,132
Share-based compensation award, Tranche one | 2009 Warrants
Capital Unit [Line Items]
Warrants vesting period				6 months
Share-based compensation award Tranche two | 2009 Warrants
Capital Unit [Line Items]
Warrants vesting period				18 months
Share-based compensation award, Tranche three | 2009 Warrants
Capital Unit [Line Items]
Warrants vesting period				13 months

Stockholders' Equity - Summary

Stockholders' Equity - Summary of Assumptions Used to Calculate Fair Values of Warrants (Detail) - 2009 Warrants $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2016USD ($)$ / shares
Original 2009 Warrants Immediately Prior to Modification
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Expected volatility	30.00%
Expected dividend yield	2.50%
Expected term (years)	3 years
Risk-free interest rate	0.58%
Weighted average fair value (per warrant) | $ / shares	$ 1.28
Total fair value (in thousands) | $	$ 4,226
Amended 2009 Warrants Immediately After Modification
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Expected volatility	30.00%
Expected dividend yield	2.50%
Expected term (years)	6 years
Risk-free interest rate	1.70%
Weighted average fair value (per warrant) | $ / shares	$ 2.49
Total fair value (in thousands) | $	$ 8,254

Stockholders' Equity - Schedule

Stockholders' Equity - Schedule of Activity of Warrants (Detail) - 2009 Warrants $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2016USD ($)$ / sharesshares
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Options outstanding, beginning balance (in shares) | shares	3,024,123
Warrants, granted (in shares) | shares	0
Warrants, exercised (in shares) | shares	(338,196)
Warrants, forfeited (in shares) | shares	0
Warrants, expired (in shares) | shares	0
Options outstanding, ending balance (in shares) | shares	2,685,927
Warrants, exercisable (in shares) | shares	1,582,449
Warrants, vested (in shares) | shares	2,685,927
Warrants, vested and expected to vest | shares	2,685,927
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Options outstanding, beginning balance, weighted average exercise price (in dollars per share) | $ / shares	$ 26.42
Weighted average exercise price, granted (in dollars per share) | $ / shares	0
Weighted average exercise price, exercised (in dollars per share) | $ / shares	25.96
Weighted average exercise price, forfeited (in dollars per share) | $ / shares	0
Weighted average exercise price, expired (in dollars per share) | $ / shares	0
Options outstanding, ending balance, weighted average exercise price (in dollars per share) | $ / shares	26.48
Weighted average exercise price, exercisable (in dollars per share) | $ / shares	25.23
Weighted average exercise price, vested | $ / shares	26.48
Weighted average exercise price, vested and expected to vest | $ / shares	$ 26.48
Aggregate intrinsic value, exercised | $	$ 2,821
Aggregate intrinsic value, outstanding | $	56,993
Aggregate intrinsic value, exercisable | $	35,564
Aggregate intrinsic value, vested | $	56,993
Aggregate intrinsic value, vested and expected to vest | $	$ 56,993
Weighted average remaining contractual life (years), outstanding	2 years 10 months 13 days
Weighted average remaining contractual life (years), exercisable	2 years 10 months 13 days
Weighted average remaining contractual life (years), vested	2 years 10 months 13 days
Weighted average remaining contractual life (years), vested and expected to vest	2 years 10 months 13 days

Stock-Based Compensation and 87

Stock-Based Compensation and Other Benefit Plans - 2009 Equity Incentive Plan - Additional Information (Detail) - 2009 Equity incentive plan - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2009
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Aggregate percent of common stock that may be granted under the plan				10.00%
Aggregate shares of common stock that may be granted under the plan				4,375,000
Stock based compensation awards, option grants during the period (in shares)	0
Options granted, weighted average exercise price (in dollars per share)	$ 0
Director
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock based compensation awards, option grants during the period (in shares)		90,000	70,000
Options granted, weighted average exercise price (in dollars per share)		$ 19.75	$ 19.25
Stock based compensation awards, expiration period		10 years	10 years
Stock based compensation awards, shares vesting percentage		25.00%
Stock based compensation awards, aggregate fair value on grant date		$ 0.5
Employees
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock based compensation awards, option grants during the period (in shares)		605,250	370,499
Options vesting period		3 years	3 years
Options granted, weighted average exercise price (in dollars per share)		$ 21.99	$ 19.63
Stock based compensation awards, expiration period		10 years	10 years
Stock based compensation awards, aggregate fair value on grant date		$ 4.5

Stock-Based Compensation and 88

Stock-Based Compensation and Other Benefit Plans - Schedule of Option Activity - 2009 Equity Incentive Plan (Detail) - 2009 Equity incentive plan - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Options outstanding, beginning balance (in shares)	3,707,898
Granted, options (in shares)	0
Exercised, options (in shares)	(549,928)
Forfeited, options (in shares)	(49,984)
Expired, options (in shares)	(751)
Options outstanding, ending balance (in shares)	3,107,235	3,707,898
Exercisable, options (in shares)	2,937,302
Vested, options (in shares)	2,937,302
Vested and expected to vest, options (in shares)	3,107,236
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period, Weighted Average Exercise Price [Abstract]
Options outstanding, beginning balance, weighted average exercise price (in dollars per share)	$ 20.67
Options granted, weighted average exercise price (in dollars per share)	0
Options exercised, weighted average exercise price (in dollars per share)	20.78
Options forfeited, weighted average exercise price (in dollars per share)	22.34
Options expired, weighted average exercise price (in dollars per share)	22.97
Options outstanding, ending balance, weighted average exercise price (in dollars per share)	20.62	$ 20.67
Exercisable, weighted average exercise price (in dollars per share)	20.55
Vested, weighted average exercise price (in dollars per share)	20.55
Vested and expected to vest, weighted average exercise price (in dollars per share)	$ 20.62
Exercised, aggregate intrinsic value	$ 9,547	$ 4,940	$ 0
Options outstanding, aggregate intrinsic value	84,138
Exercisable, aggregate intrinsic value	79,745
Vested, aggregate intrinsic value	79,745
Vested and expected to vest, aggregate intrinsic value	$ 84,138
Options outstanding, weighted average remaining contractual term	4 years 8 months 8 days
Exercisable, weighted average remaining contractual term	4 years 6 months 7 days
Vested, weighted average remaining contractual term	4 years 6 months 7 days
Vested and expected to vest, weighted average remaining contractual term	4 years 8 months 8 days

Stock-Based Compensation and 89

Stock-Based Compensation and Other Benefit Plans - Schedule of Assumptions used for Estimating Fair Values of Option Plan Awards (Detail) - $ / shares	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
2009 Equity incentive plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected volatility, minimum		33.60%
Expected volatility, maximum		36.70%
Expected volatility	0.00%	0.00%
Expected dividend yield	0.00%	0.00%
Expected term (years)	0 days	0 days
Risk-free interest rate	0.00%	0.00%
Risk-free interest rate, minimum		2.32%
Risk-free interest rate, maximum		2.70%
Weighted average grant date fair value (in dollars per share)	$ 0	$ 0	$ 7.14
2009 Equity incentive plan | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected dividend yield		1.30%
Expected term (years)		5 years 6 months
2009 Equity incentive plan | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected dividend yield		2.50%
Expected term (years)		6 years 6 months
2013 Stock incentive plan | 2013 Plan options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected volatility	24.70%	31.10%	0.00%
Expected dividend yield	1.25%	1.25%	0.00%
Expected term (years)	6 years	6 years 2 months 12 days	0 days
Risk-free interest rate	1.37%	1.63%	0.00%
Weighted average grant date fair value (in dollars per share)	$ 6.57	$ 7.38	$ 0

Stock-Based Compensation and 90

Stock-Based Compensation and Other Benefit Plans - Summary of Stock-based Compensation Expense (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
2009 Equity incentive plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	$ 1,707	$ 2,239	$ 2,125
Tax benefit realized from stock awards exercised	3,622	1,618	0
Fair value of stock-based awards that vested during the year	1,882	2,724	2,319
Amount of cash received from exercise of awards	11,427	8,163	0
Total intrinsic value of awards exercised during the year	9,547	4,940	0
Unrecognized compensation expense related to stock-based compensation	$ 569	$ 2,561	$ 4,949
Weighted-average life over which expense is expected to be recognized (years)	9 months 10 days	1 year 8 months 19 days	2 years 6 months 14 days
2013 Stock incentive plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense		$ 5,500
2013 Stock incentive plan | 2013 Plan options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	$ 1,655	2,002	$ 5,463
Tax benefit realized from stock awards exercised	1,380	158	0
Fair value of stock-based awards that vested during the year	4,313	1,181	914
Amount of cash received from exercise of awards	5,186	714	0
Total intrinsic value of awards exercised during the year	3,888	465	0
Unrecognized compensation expense related to stock-based compensation	$ 333	$ 1,633	$ 1,918
Weighted-average life over which expense is expected to be recognized (years)	1 year 2 months 26 days	1 year 6 months 11 days	1 year 11 months 23 days
2016 Stock incentive plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	$ 570
Total intrinsic value of awards exercised during the year	0
Unrecognized compensation expense related to stock-based compensation	$ 6,563
Weighted-average life over which expense is expected to be recognized (years)	4 years 7 months 9 days

Stock-Based Compensation and 91

Stock-Based Compensation and Other Benefit Plans - 2013 Stock Incentive Plan - Additional Information (Detail) - USD ($)	Sep. 05, 2014	Dec. 23, 2013	Sep. 30, 2014	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2012	Aug. 06, 2014	Dec. 31, 2013
Class A common stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock, shares issued (in shares)				43,663,586	39,103,945
Class A common stock | IPO
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock, shares issued (in shares)								7,520,000
Common stock, shares issued price (in dollars per share)								$ 22
2013 Stock incentive plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Aggregate shares of common stock that may be granted under the plan (in shares)									3,000,000
Stock-based compensation expense					$ 5,500,000
Options granted (in shares)						0
2013 Stock incentive plan | 2013 Plan options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense				$ 1,655,000	2,002,000	$ 5,463,000
Options granted (in shares)				80,000
Options vesting period		3 years
Options granted, weighted average exercise price (in dollars per share)		$ 19.75		$ 29.98
Estimated fair value of grant, expiration period				Dec. 23, 2023
Award description				The vested 2013 Plan Options are exercisable with respect to one-third each on February 6, 2015, February 6, 2016 and February 6, 2017.
Tax benefits on options exercised				$ 1,380,000	$ 158,000	$ 0
2013 Stock incentive plan | 2013 Plan options | Director
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options granted (in shares)		1,500,000			129,000
Options granted, weighted average exercise price (in dollars per share)					$ 23.97
Stock based compensation awards, expiration period					10 years
Stock based compensation awards, shares vesting percentage					25.00%
Stock based compensation awards, aggregate fair value on grant date					$ 881,000
2013 Stock incentive plan | 2013 Plan options | Employees
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options granted (in shares)		673,000
2013 Stock incentive plan | Restricted stock units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense			$ 9,900,000
Shares granted (in shares)		500,000
Shares received by recipients (in shares)	243,499
Shares withheld to satisfy income tax withholdings (in shares)	256,501
Stock based compensation, shares available for grant (in shares)					0
Tax benefits on options exercised					$ 3,800,000
2013 Stock incentive plan | Restricted stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock based compensation, shares available for grant (in shares)					0
2013 Stock incentive plan | Unrestricted stock awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock based compensation, shares available for grant (in shares)					0
2010 Warrants
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense							$ 0
Change in fair value of warrants									$ 1,500,000
Share-based compensation award, Tranche one | 2013 Stock incentive plan | 2013 Plan options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock based compensation awards, shares vesting percentage				33.33%
Share-based compensation award Tranche two | 2013 Stock incentive plan | 2013 Plan options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock based compensation awards, shares vesting percentage				33.33%
Share-based compensation award, Tranche three | 2013 Stock incentive plan | 2013 Plan options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock based compensation awards, shares vesting percentage				33.33%
Employees | 2013 Stock incentive plan | 2013 Plan options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options granted (in shares)					120,500
Options vesting period					3 years
Options granted, weighted average exercise price (in dollars per share)					$ 27.36
Stock based compensation awards, aggregate fair value on grant date					$ 960,000
Stock based compensation awards, expiration period					10 years
Maximum | 2013 Stock incentive plan | Restricted stock, restricted stock units, and unrestricted stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Aggregate shares of common stock that may be granted under the plan (in shares)									500,000

Stock-Based Compensation and 92

Stock-Based Compensation and Other Benefit Plans - Summary of Assumptions Used to Calculate Fair Values of Cancelled 2010 Warrants (Detail) - 2010 Warrants - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total fair value (in thousands)		$ 1,500
Original 2010 Warrants Immediately Prior to Cancellation
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected volatility	30.00%
Expected dividend yield	2.50%
Expected term (years)	3 years 7 months 6 days
Risk-free interest rate	1.06%
Weighted average fair value (per warrant)	$ 0.70
Total fair value (in thousands)	$ 1,499
Original 2010 Warrants Immediately After to Cancellation
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected volatility	30.00%
Expected dividend yield	2.50%
Expected term (years)	0 days
Risk-free interest rate	1.06%
Weighted average fair value (per warrant)	$ 0
Total fair value (in thousands)	$ 0

Stock-Based Compensation and 93

Stock-Based Compensation and Other Benefit Plans - Schedule of Option Activity - 2013 Stock Incentive Plan (Detail) - 2013 Stock incentive plan - USD ($) $ / shares in Units, $ in Thousands	Dec. 23, 2013	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Granted, options (in shares)				0
2013 Plan options
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Options outstanding, beginning balance (in shares)		2,367,187
Granted, options (in shares)		80,000
Exercised, options (in shares)		(248,760)
Forfeited, options (in shares)		(34,169)
Expired, options (in shares)		0
Options outstanding, ending balance (in shares)		2,164,258	2,367,187
Exercisable, options (in shares)		1,381,232
Vested, options (in shares)		1,881,236
Vested and expected to vest, options (in shares)		2,164,258
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Options outstanding, beginning balance, weighted average exercise price (in dollars per share)		$ 20.37
Options granted, weighted average exercise price (in dollars per share)	$ 19.75	29.98
Options exercised, weighted average exercise price (in dollars per share)		20.85
Options forfeited, weighted average exercise price (in dollars per share)		23.03
Options expired, weighted average exercise price (in dollars per share)		0
Options outstanding, ending balance, weighted average exercise price (in dollars per share)		20.63	$ 20.37
Exercisable, weighted average exercise price (in dollars per share)		20.60
Vested, weighted average exercise price (in dollars per share)		20.38
Vested and expected to vest, weighted average exercise price (in dollars per share)		$ 20.63
Exercised, aggregate intrinsic value		$ 3,888	$ 465	$ 0
Options outstanding, aggregate intrinsic value		58,596
Exercisable, aggregate intrinsic value		37,427
Vested, aggregate intrinsic value		51,402
Vested and expected to vest, aggregate intrinsic value		$ 58,596
Options outstanding, weighted average remaining contractual term		7 years 1 month 27 days
Exercisable, weighted average remaining contractual term		7 years 2 months 4 days
Vested, weighted average remaining contractual term		7 years 1 month 2 days
Vested and expected to vest, weighted average remaining contractual term		7 years 1 month 27 days

Stock-Based Compensation and 94

Stock-Based Compensation and Other Benefit Plans Stock-Based Compensation and Other Benefit Plans - 2016 Stock Incentive Plan - Additional Information (Detail) - 2016 Stock incentive plan - USD ($) $ / shares in Units, $ in Thousands	Mar. 29, 2016	Aug. 31, 2016	Dec. 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted, options (in shares)		827,500	827,500
Options vesting period		5 years
Options granted, weighted average exercise price (in dollars per share)		$ 36.11	$ 36.11
Stock based compensation awards, aggregate fair value on grant date		$ 7,100
Stock based compensation awards, expiration period		10 years
Stock-based compensation expense			$ 570
Class A common stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock, capital shares reserved for future issuance (in shares)			2,000,000
Restricted stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted (in shares)	121,212
Share-based compensation grant date fair value			$ 4,200
Stock-based compensation expense			$ 1,400

Stock-Based Compensation and 95

Stock-Based Compensation and Other Benefit Plans Stock-Based Compensation and Other Benefit Plans - Schedule of Option Activity - 2016 Stock Incentive Plan (Detail) - 2016 Stock incentive plan - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended	12 Months Ended
	Aug. 31, 2016	Dec. 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Options outstanding, beginning balance (in shares)		0
Granted, options (in shares)	827,500	827,500
Exercised, options (in shares)		0
Forfeited, options (in shares)		0
Expired, options (in shares)		0
Options outstanding, ending balance (in shares)		827,500
Exercisable, options (in shares)		0
Vested, options (in shares)		0
Vested and expected to vest, options (in shares)		827,500
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Options outstanding, beginning balance, weighted average exercise price (in dollars per share)		$ 0
Options granted, weighted average exercise price (in dollars per share)	$ 36.11	36.11
Options exercised, weighted average exercise price (in dollars per share)		0
Options forfeited, weighted average exercise price (in dollars per share)		0
Options expired, weighted average exercise price (in dollars per share)		0
Options outstanding, ending balance, weighted average exercise price (in dollars per share)		36.11
Exercisable, weighted average exercise price (in dollars per share)		0
Vested, weighted average exercise price (in dollars per share)		0
Vested and expected to vest, weighted average exercise price (in dollars per share)		$ 36.11
Exercised, aggregate intrinsic value		$ 0
Options outstanding, aggregate intrinsic value		9,591
Exercisable, aggregate intrinsic value		0
Vested, aggregate intrinsic value		0
Vested and expected to vest, aggregate intrinsic value		$ 9,591
Options outstanding, weighted average remaining contractual term		9 years 7 months 9 days
Exercisable, weighted average remaining contractual term		0 days
Vested, weighted average remaining contractual term		0 days
Vested and expected to vest, weighted average remaining contractual term		9 years 7 months 9 days

Stock-Based Compensation and 96

Stock-Based Compensation and Other Benefit Plans Stock-Based Compensation and Other Benefit Plans - Schedule of Assumptions used for Estimating Fair Values of 2016 Stock Incentive Plan (Detail) - 2016 Stock incentive plan	12 Months Ended
	Dec. 31, 2016$ / shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected volatility	24.00%
Expected dividend yield	1.25%
Expected term (years)	7 years 6 months
Risk-free interest rate	1.42%
Weighted average grant date fair value	$ 8.62

Stock-Based Compensation and 97

Stock-Based Compensation and Other Benefit Plans - Florida Community Bank, N.A. 401(k) Plan - Additional Information (Detail) - Florida community bank, N.A. 401(k) plan - USD ($) $ in Thousands	Jan. 01, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Defined Contribution Plan Disclosure [Line Items]
401 (k) Plan, matching employer contribution percentage	100.00%			100.00%
401 (k) Plan, percentage of compensation matched	3.00%			2.00%
Years of service after which matching contributions are fully vested		3 years
Total 401(k) matching employer contribution expense		$ 978	$ 868	$ 404

Stock-Based Compensation and 98

Stock-Based Compensation and Other Benefit Plans - Executive Incentive Plan - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Annual incentive awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	$ 6,000,000	$ 5,100,000
Executive incentive plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted-average life over which expense is expected to be recognized (years)	3 years
Stock-based compensation expense	$ 0
Cash phantom units (CPUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	$ 377,000	$ 1,100,000

Stock-Based Compensation and 99

Stock-Based Compensation and Other Benefit Plans - Management Long Term Incentive Plan - Additional Information (Detail) $ in Millions	12 Months Ended
	Dec. 31, 2016USD ($)
Management long-term incentive plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	$ 1.1

Basic and Diluted Earnings P100

Basic and Diluted Earnings Per Share - Computation of Basic and Diluted Earnings Per Share (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Earnings Per Share [Abstract]
Net income available to common stockholders	$ 27,896	$ 26,064	$ 23,504	$ 22,452	$ 29,749	$ 21,140	$ 19,376	$ (16,874)	$ 99,916	$ 53,391	$ 22,372
Weighted average number of common shares—basic (in shares)									40,716,588	41,300,979	38,054,158
Effect of dilutive securities:
Employee stock-based compensation awards and warrants (in shares)									2,508,576	1,992,628	204,158
Weighted average number of common shares—diluted (in shares)									43,225,164	43,293,607	38,258,316
Basic earnings per share (in dollars per shares)	$ 0.68	$ 0.64	$ 0.58	$ 0.55	$ 0.73	$ 0.51	$ 0.47	$ (0.41)	$ 2.45	$ 1.29	$ 0.59
Diluted earnings per share (in dollars per shares)	$ 0.64	$ 0.60	$ 0.55	$ 0.52	$ 0.68	$ 0.48	$ 0.45	$ (0.41)	$ 2.31	$ 1.23	$ 0.58
Weighted average anti-dilutive warrants, stock options and RSUs (in shares)									330,095	91,923	7,822,029

Income Taxes - Components of Ex

Income Taxes - Components of Expense and Benefit for Income Taxes (Detail) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Current income tax expense:
Federal									$ 39,528	$ 23,610	$ 18,329
State									6,013	3,441	2,921
Total current income tax expense									45,541	27,051	21,250
Deferred income tax expense (benefit):
Federal									9,161	(19,157)	(6,332)
State									1,203	(2,238)	(961)
Total deferred income tax expense (benefit)									10,364	(21,395)	(7,293)
Total income tax expense (benefit)	$ 15,194	$ 14,330	$ 13,697	$ 12,684	$ 4,233	$ 11,320	$ 10,433	$ (20,330)	$ 55,905	$ 5,656	$ 13,957

Income Taxes - Additional Infor

Income Taxes - Additional Information (Detail) - USD ($)	3 Months Ended	12 Months Ended
	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income Taxes [Line Items]
Tax assessment		$ 0
Tax expense (benefit) at federal income tax rate		35.00%	35.00%	35.00%
Deferred tax assets for federal net operating losses		$ 9,287,000	$ 9,790,000
Deferred tax assets for state net operating losses		$ 921,000	971,000
Reversal of valuation allowance, description		Management believes the Company will realize the benefits from certain federal and state net operating loss carryforwards and as such, in 2015, reversed the valuation allowance of $9.1 million previously provided on the deferred tax assets for federal and state net operating loss carryforwards. The reversal of the valuation allowance on the deferred tax assets was recognized as a reduction of income tax expense.
Reversal of valuation allowance	$ 9,100,000
Uncertain tax positions		$ 0	0	$ 0
Interest and penalties associated with income taxes		$ 0	$ 0	$ 0
Minimum
Income Taxes [Line Items]
Operating loss carryforwards expiration year		2,028
Maximum
Income Taxes [Line Items]
Operating loss carryforwards expiration year		2,034

Income Taxes - Reconciliation o

Income Taxes - Reconciliation of Expected Income Tax Expense or Benefit at Statutory Federal Income Tax Rate to Actual Income Tax Expense or Benefit and Effective Tax Rate (Detail) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income tax expense or benefit
Tax expense (benefit) at federal income tax rate									$ 54,537	$ 20,667	$ 12,747
Bank-owned life insurance									(1,817)	(1,614)	(2,019)
Stock compensation									234	729	2,870
Dividends received deduction									(1,919)	(2,104)	(1,168)
GFB NUBIL Revaluation									0	(4,954)	0
NOL Valuation Allowance									0	(9,061)	0
State tax, net of federal benefit									4,777	1,619	1,238
Other									93	374	289
Total income tax expense (benefit)	$ 15,194	$ 14,330	$ 13,697	$ 12,684	$ 4,233	$ 11,320	$ 10,433	$ (20,330)	$ 55,905	$ 5,656	$ 13,957
Effective tax rates
Tax expense (benefit) at federal income tax rate									35.00%	35.00%	35.00%
Bank-owned life insurance									(1.17%)	(2.73%)	(5.56%)
Stock compensation									0.15%	1.23%	7.90%
Dividends received deduction									(1.23%)	(3.56%)	(3.21%)
GFB NUBIL Revaluation									0.00%	(8.39%)	0.00%
NOL Valuation Allowance									0.00%	(15.35%)	0.00%
State tax, net of federal benefit									3.07%	2.74%	3.41%
Other									0.06%	0.62%	0.79%
Total									35.88%	9.56%	38.33%

Income Taxes - Significant Comp

Income Taxes - Significant Components of Net Deferred Tax Assets and Liabilities (Detail) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Deferred tax assets:
Excess tax basis over carrying value of assets	$ 12,991	$ 15,740
Excess carrying value over tax basis of liabilities	324	1,349
Net operating loss carry forward:
Federal	9,287	9,790
State	921	971
Total	10,208	10,761
Amortization	21,555	25,052
Depreciation	660	848
Unrealized losses on securities available for sale	2,509	5,930
Allowance for loan losses	12,807	9,468
Non-qualified stock options	7,695	6,458
Other	2,696	2,794
Gross deferred tax assets	71,445	78,400
Valuation allowance	0	0
Gross deferred tax assets, net of valuation allowance	71,445	78,400
Deferred tax liabilities:
Loans	(7,542)	(966)
Restricted securities	(2,260)	(2,257)
Other	(252)	(1)
Gross deferred tax liabilities	(10,054)	(3,224)
Deferred tax assets (liabilities), net	61,391	75,176
Other real estate owned
Deferred tax assets:
Excess tax basis over carrying value of assets	12,991	15,740
Deposits
Deferred tax assets:
Excess carrying value over tax basis of liabilities	0	19
Repo Loans
Deferred tax assets:
Excess carrying value over tax basis of liabilities	$ 324	$ 1,330

Commitments and Contingencies -

Commitments and Contingencies - Additional Information (Detail) - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015
Commitments and Contingencies Disclosure [Abstract]
Reserve for unfunded commitments	$ 1.6	$ 1.5

Commitments and Contingencie106

Commitments and Contingencies - Summary of Unfunded Commitments (Detail) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Line of Credit Facility [Line Items]
Unfunded credit extension commitments	$ 1,160,648	$ 951,741
Commitments to fund loans
Line of Credit Facility [Line Items]
Unfunded credit extension commitments	724,380	578,730
Unused lines of credit
Line of Credit Facility [Line Items]
Unfunded credit extension commitments	410,068	358,601
Commercial and standby letters of credit
Line of Credit Facility [Line Items]
Unfunded credit extension commitments	$ 26,200	$ 14,410

Parent Company Financial Sta107

Parent Company Financial Statements - Condensed Balance Sheets (Detail) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Assets:
Cash and due from banks	$ 52,903	$ 44,696
Available for sale securities	1,876,434	1,524,622
Other assets	59,347	71,552
Total assets	9,090,134	7,331,486
Liabilities and stockholders' equity:
Total liabilities	8,107,693	6,455,377
Stockholders’ equity	982,441	876,109	$ 851,653	$ 716,114
Total liabilities and stockholders’ equity	9,090,134	7,331,486
Parent company
Assets:
Cash and due from banks	18,126	9,112
Available for sale securities	129,970	167,524
Investment in bank subsidiary	885,296	773,508
Other assets	9,874	12,980
Total assets	1,043,266	963,124
Liabilities and stockholders' equity:
Total liabilities	61,182	87,432
Stockholders’ equity	982,084	875,692
Total liabilities and stockholders’ equity	$ 1,043,266	$ 963,124

Parent Company Financial Sta108

Parent Company Financial Statements - Condensed Statements of Income (Detail) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income:
Interest and dividends on investment securities									$ 60,706	$ 52,741	$ 44,545
Gain on investment securities									1,819	1,906	12,105
Expense:
Interest on borrowings									7,271	5,103	5,496
Stock-based compensation expense									5,613	5,290	21,747
Professional services									5,207	5,412	5,629
Other noninterest expense									7,199	5,924	15,672
Total noninterest expense	$ 33,646	$ 33,036	$ 33,975	$ 33,300	$ 33,201	$ 30,706	$ 32,047	$ 30,650	133,957	126,604	145,632
Income before income tax expense	43,090	40,394	37,201	35,136	33,982	32,460	29,809	(37,204)
Income tax expense	15,194	14,330	13,697	12,684	4,233	11,320	10,433	(20,330)	55,905	5,656	13,957
Net income	$ 27,896	$ 26,064	$ 23,504	$ 22,452	$ 29,749	$ 21,140	$ 19,376	$ (16,874)	99,916	53,391	22,372
Parent company
Income:
Interest and dividends on investment securities									7,831	8,602	4,838
Gain on investment securities									(586)	688	(197)
Total income									7,245	9,290	4,641
Expense:
Interest on borrowings									884	551	0
Stock-based compensation expense									577	829	13,205
Professional services									707	950	1,243
Directors fees									800	598	3,700
Warrant expense									0	0	4,122
Insurance expense									1,034	1,505	1,451
Other noninterest expense									7,261	6,500	3,715
Total noninterest expense									11,263	10,933	27,436
Income before income tax expense									(4,018)	(1,643)	(22,795)
Income tax expense									(3,671)	(2,901)	(8,836)
Income (loss) before equity in undistributed income of subsidiaries									(347)	1,258	(13,959)
Equity in income of subsidiary									100,263	52,133	36,331
Net income									$ 99,916	$ 53,391	$ 22,372

Parent Company Financial Sta109

Parent Company Financial Statements - Condensed Statements of Comprehensive Income (Loss) (Detail) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Condensed Statement of Income Captions [Line Items]
Net income	$ 27,896	$ 26,064	$ 23,504	$ 22,452	$ 29,749	$ 21,140	$ 19,376	$ (16,874)	$ 99,916	$ 53,391	$ 22,372
Other comprehensive income (loss):
Unrealized net holding gains (losses) on investment securities available for sale, net of taxes of $(620), $(227), and $(1,666), respectively									7,115	(8,598)	7,051
Reclassification adjustment for (gains) losses on investment securities available for sale included in net income, net of taxes of $63, $384, and $(443), respectively									(1,667)	(1,524)	(4,797)
Total other comprehensive income (loss)									5,448	(10,122)	2,254
Total comprehensive income									105,364	43,269	24,626
Parent company
Condensed Statement of Income Captions [Line Items]
Net income									99,916	53,391	22,372
Other comprehensive income (loss):
Unrealized net holding gains (losses) on investment securities available for sale, net of taxes of $(620), $(227), and $(1,666), respectively									988	362	2,653
Reclassification adjustment for (gains) losses on investment securities available for sale included in net income, net of taxes of $63, $384, and $(443), respectively									(100)	(612)	705
Total other comprehensive income (loss)									888	(250)	3,358
Total comprehensive income									$ 100,804	$ 53,141	$ 25,730

Parent Company Financial Sta110

Parent Company Financial Statements - Condensed Statements of Comprehensive Income (Loss) (Parenthetical) (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Condensed Statement of Income Captions [Line Items]
Unrealized net holding gains (losses) on investment securities available for sale, taxes	$ (4,467)	$ 5,399	$ (4,430)
Reclassification adjustment for (gains) losses on investment securities available for sale included in net income (loss), Taxes	1,048	956	3,013
Parent company
Condensed Statement of Income Captions [Line Items]
Unrealized net holding gains (losses) on investment securities available for sale, taxes	(620)	(227)	(1,666)
Reclassification adjustment for (gains) losses on investment securities available for sale included in net income (loss), Taxes	$ 63	$ 384	$ (443)

Parent Company Financial Sta111

Parent Company Financial Statements - Condensed Statements of Cash Flows (Detail) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Cash Flows From Operating Activities:
Net income	$ 27,896	$ 26,064	$ 23,504	$ 22,452	$ 29,749	$ 21,140	$ 19,376	$ (16,874)	$ 99,916	$ 53,391	$ 22,372
Adjustments to reconcile net income to net cash used in operating activities:
(Gain) loss on investment securities									(1,819)	(1,906)	(12,105)
Depreciation of premises and equipment									3,600	3,800	3,900
Deferred tax expense									10,364	(21,395)	(7,293)
Net change in operating assets and liabilities:
Net change in other assets									8,499	49	(21,314)
Net change in other liabilities									(10,717)	(12,539)	9,323
Net cash provided by (used in) operating activities									98,077	68,220	46,601
Cash Flows From Investing Activities:
Purchases of investment securities available for sale									(750,482)	(676,708)	(1,361,290)
Sales of investment securities available for sale									342,137	354,733	1,291,261
Payments and maturities of investment securities									89,421	139,996	147,726
Net cash provided by (used in) investing activities									(1,757,654)	(1,418,992)	(1,131,631)
Cash Flows From Financing Activities:
Proceeds from capital raise, net									0	0	104,475
Settlement of RSU shares									0	0	(5,688)
Repurchase common stock									(23,738)	(34,884)	0
Exercise of stock options									17,042	8,793	0
Excess tax benefit from share based payments									2,110	2,048	0
Net change in repurchase agreements									(15,195)	94,997	(3,031)
Net cash provided by (used in) financing activities									1,640,993	1,346,147	952,898
Net Change in Cash and Cash Equivalents									(18,584)	(4,625)	(132,132)
Cash and Cash Equivalents at Beginning of Period				102,460				107,085	102,460	107,085	239,217
Cash and Cash Equivalents at End of Period	83,876				102,460				83,876	102,460	107,085
Parent company
Cash Flows From Operating Activities:
Net income									99,916	53,391	22,372
Adjustments to reconcile net income to net cash used in operating activities:
Equity in earnings of subsidiaries									(100,263)	(52,133)	(36,331)
(Gain) loss on investment securities									586	(688)	197
Stock-based compensation and warrant expense									577	829	17,326
Depreciation of premises and equipment									0	1	2
Deferred tax expense									(735)	1,272	0
Net change in operating assets and liabilities:
(Increase)/decrease in due from subsidiaries									4,478	8,476	(8,026)
Increase/(decrease) in due to subsidiaries									1,745	(1,979)	1,895
Net change in other assets									1,382	1,052	(558)
Net change in other liabilities									(4,365)	(2,806)	(30)
Net cash provided by (used in) operating activities									3,321	7,415	(3,153)
Cash Flows From Investing Activities:
Purchases of investment securities available for sale									(67,934)	(169,728)	(149,794)
Sales of investment securities available for sale									106,347	110,649	128,559
Payments and maturities of investment securities									0	2,005	0
Capital contribution									0	(35,000)	(172,000)
Net cash provided by (used in) investing activities									38,413	(92,074)	(193,235)
Cash Flows From Financing Activities:
Proceeds from capital raise, net									0	0	104,475
Deferred costs from capital raise									0	0	(97)
Deferred placement fee									0	0	(10,000)
Settlement of RSU shares									0	0	(5,688)
Repurchase common stock									(23,738)	(34,884)	0
Exercise of stock options									17,042	8,793	0
Excess tax benefit from share based payments									2,110	2,048	0
Net change in repurchase agreements									(28,134)	87,254	0
Net cash provided by (used in) financing activities									(32,720)	63,211	88,690
Net Change in Cash and Cash Equivalents									9,014	(21,448)	(107,698)
Cash and Cash Equivalents at Beginning of Period				$ 9,112				$ 30,560	9,112	30,560	138,258
Cash and Cash Equivalents at End of Period	$ 18,126				$ 9,112				$ 18,126	$ 9,112	$ 30,560

Fair Value Measurements - Summa

Fair Value Measurements - Summary of Assets and Liabilities Measured at Fair Value on a Recurring Basis (Detail) - Fair value, measurements, recurring - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Assets:
Assets, fair value	$ 1,891,702	$ 1,546,175
Liabilities:
Liabilities, fair value	15,268	21,553
Derivative liabilities—Interest rate contracts | Interest rate contracts
Liabilities:
Liabilities, fair value	15,268	21,553
Level 1
Assets:
Assets, fair value	60,425	2,052
Liabilities:
Liabilities, fair value	0	0
Level 1 | Derivative liabilities—Interest rate contracts | Interest rate contracts
Liabilities:
Liabilities, fair value	0	0
Level 2
Assets:
Assets, fair value	1,831,277	1,544,123
Liabilities:
Liabilities, fair value	15,268	21,553
Level 2 | Derivative liabilities—Interest rate contracts | Interest rate contracts
Liabilities:
Liabilities, fair value	15,268	21,553
Level 3
Assets:
Assets, fair value	0	0
Liabilities:
Liabilities, fair value	0	0
Level 3 | Derivative liabilities—Interest rate contracts | Interest rate contracts
Liabilities:
Liabilities, fair value	0	0
U.S. Government agencies and sponsored enterprises obligations
Assets:
Assets, fair value	16,314	20,888
U.S. Government agencies and sponsored enterprises obligations | Level 1
Assets:
Assets, fair value	0	0
U.S. Government agencies and sponsored enterprises obligations | Level 2
Assets:
Assets, fair value	16,314	20,888
U.S. Government agencies and sponsored enterprises obligations | Level 3
Assets:
Assets, fair value	0	0
U.S. Government agencies and sponsored enterprises mortgage-backed securities
Assets:
Assets, fair value	558,446	393,115
U.S. Government agencies and sponsored enterprises mortgage-backed securities | Level 1
Assets:
Assets, fair value	0	0
U.S. Government agencies and sponsored enterprises mortgage-backed securities | Level 2
Assets:
Assets, fair value	558,446	393,115
U.S. Government agencies and sponsored enterprises mortgage-backed securities | Level 3
Assets:
Assets, fair value	0	0
State and municipal obligations
Assets:
Assets, fair value	27,679	2,215
State and municipal obligations | Level 1
Assets:
Assets, fair value	0	0
State and municipal obligations | Level 2
Assets:
Assets, fair value	27,679	2,215
State and municipal obligations | Level 3
Assets:
Assets, fair value	0	0
Asset-backed securities
Assets:
Assets, fair value	577,823	493,934
Asset-backed securities | Level 1
Assets:
Assets, fair value	0	0
Asset-backed securities | Level 2
Assets:
Assets, fair value	577,823	493,934
Asset-backed securities | Level 3
Assets:
Assets, fair value	0	0
Corporate bonds and other debt securities
Assets:
Assets, fair value	559,294	444,895
Corporate bonds and other debt securities | Level 1
Assets:
Assets, fair value	53,517	0
Corporate bonds and other debt securities | Level 2
Assets:
Assets, fair value	505,777	444,895
Corporate bonds and other debt securities | Level 3
Assets:
Assets, fair value	0	0
Preferred stocks and other equity securities
Assets:
Assets, fair value	136,878	169,575
Preferred stocks and other equity securities | Level 1
Assets:
Assets, fair value	6,908	2,052
Preferred stocks and other equity securities | Level 2
Assets:
Assets, fair value	129,970	167,523
Preferred stocks and other equity securities | Level 3
Assets:
Assets, fair value	0	0
Derivative assets—Interest rate contracts | Interest rate contracts
Assets:
Assets, fair value	15,268	21,553
Derivative assets—Interest rate contracts | Level 1 | Interest rate contracts
Assets:
Assets, fair value	0	0
Derivative assets—Interest rate contracts | Level 2 | Interest rate contracts
Assets:
Assets, fair value	15,268	21,553
Derivative assets—Interest rate contracts | Level 3 | Interest rate contracts
Assets:
Assets, fair value	$ 0	$ 0

Fair Value Measurements - Addit

Fair Value Measurements - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2016USD ($)Instruments	Dec. 31, 2015USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Transfers of financial assets between levels of the fair value hierarchy | $	$ 53,500,000	$ 0
Due from FDIC | $	$ 0
VAIs
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
No remaining agreements settled with the FDIC | Instruments	0
EAAs
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
No remaining agreements settled with the FDIC | Instruments	0

Fair Value Measurements - Sched

Fair Value Measurements - Schedule of Changes in Fair Value of Liabilities Measured at Fair Value on Recurring Basis and Classified in Level 3 of Fair Value Hierarchy for Periods Presented (Detail) - Level 3 - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Clawback Liability
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at beginnning of period	$ 0	$ 13,846	$ 11,753
Losses (gains) included in other noninterest expenses	0	0	2,093
Termination of FDIC loss sharing agreements	0	(13,846)	0
Final EAA settlement on FCB	0	0	0
Final EAA settlement on PAB	0	0	0
Balance at end of period	0	0	13,846
EAAs
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at beginnning of period	0	0	1,114
Losses (gains) included in other noninterest expenses	0	0	1,466
Termination of FDIC loss sharing agreements	0	0	0
Final EAA settlement on FCB	0	0	(1,458)
Final EAA settlement on PAB	0	0	(1,122)
Balance at end of period	$ 0	$ 0	$ 0

Fair Value Measurements - Signi

Fair Value Measurements - Significant Unobservable Inputs in Fair Value Measurement Level 3 Assets and Liabilities (Detail) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]
Other real estate owned		$ 19,228	$ 39,340
Level 3
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]
Fair value, loans		6,556,914	5,207,971
Level 3 | Fair value, measurements, nonrecurring | Impaired Loans
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]
Fair value, loans		$ 8,878	9,582
Valuation Technique	Third party appraisals and discounted cash flows
Unobservable Inputs		Collateral discounts and discount rates
Level 3 | Fair value, measurements, nonrecurring | Other real estate owned
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]
Other real estate owned		$ 19,228	$ 39,340
Valuation Technique	Third party appraisals
Unobservable Inputs		Collateral discounts and estimated cost to sell
Discount rate		10.00%
Minimum | Level 3 | Fair value, measurements, nonrecurring | Impaired Loans
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]
Discount rate		0.00%
Maximum | Level 3 | Fair value, measurements, nonrecurring | Impaired Loans
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]
Discount rate		100.00%
Weighted average | Level 3 | Fair value, measurements, nonrecurring | Impaired Loans
Fair Value Of Assets And Liabilities Measured On Non Recurring Basis [Line Items]
Discount rate		9.90%

Fair Value Measurements - Su116

Fair Value Measurements - Summary of Fair Value Measurements Related to Collateral Dependent Impaired Loans and OREO are Classified Within Level 3 of the Fair Value Hierarchy (Detail) - Fair value, measurements, nonrecurring - Level 3 - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Impaired loans
Negative valuation adjustments:
Negative fair valuation adjustments	$ 700	$ 1,071	$ 174
Foreclosed real estate
Negative valuation adjustments:
Negative fair valuation adjustments	$ 1,219	$ 674	$ 1,829

Fair Value Measurements - Sc117

Fair Value Measurements - Schedule of Carrying Amounts and Estimated Fair Values, as well as the Level Within the Fair Value Hierarchy (Detail) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Financial Assets:
Cash and cash equivalents	$ 83,876	$ 102,460	$ 107,085	$ 239,217
Available for sale securities	1,876,434	1,524,622
FHLB and other bank stock	51,656	59,477
Loans held for sale	20,220	2,514
Bank-owned life insurance	198,438	168,246
Financial Liabilities:
Deposits	7,305,671	5,430,638
Advances from the FHLB and other borrowings	751,103	983,183
Carrying Value
Financial Assets:
Cash and cash equivalents	83,876	102,460
Available for sale securities	1,876,434	1,524,622
FHLB and other bank stock	51,656	59,477
Loans, net	6,596,997	5,164,061
Loans held for sale	20,220	2,514
Bank-owned life insurance	198,438	168,246
Derivative assets—Interest rate contracts	15,268	21,553
Financial Liabilities:
Deposits	7,305,671	5,430,638
Advances from the FHLB and other borrowings	751,103	983,183
Derivative liabilities—Interest rate contracts	15,268	21,553
Fair Value
Financial Assets:
Cash and cash equivalents	83,876	102,460
Available for sale securities	1,876,434	1,524,622
FHLB and other bank stock	51,656	59,477
Loans, net	6,556,914	5,207,971
Loans held for sale	20,220	2,514
Bank-owned life insurance	198,438	168,246
Derivative assets—Interest rate contracts	15,268	21,553
Financial Liabilities:
Deposits	7,306,148	5,430,501
Advances from the FHLB and other borrowings	745,855	981,997
Derivative liabilities—Interest rate contracts	15,268	21,553
Level 1
Financial Assets:
Cash and cash equivalents	83,876	102,460
Available for sale securities	60,425	2,052
FHLB and other bank stock	0	0
Loans, net	0	0
Loans held for sale	0	0
Bank-owned life insurance	0	0
Derivative assets—Interest rate contracts	0	0
Financial Liabilities:
Deposits	0	0
Advances from the FHLB and other borrowings	0	0
Derivative liabilities—Interest rate contracts	0	0
Level 2
Financial Assets:
Cash and cash equivalents	0	0
Available for sale securities	1,816,009	1,522,570
FHLB and other bank stock	51,656	59,477
Loans, net	0	0
Loans held for sale	20,220	2,514
Bank-owned life insurance	198,438	168,246
Derivative assets—Interest rate contracts	15,268	21,553
Financial Liabilities:
Deposits	7,306,148	5,430,501
Advances from the FHLB and other borrowings	745,855	981,997
Derivative liabilities—Interest rate contracts	15,268	21,553
Level 3
Financial Assets:
Cash and cash equivalents	0	0
Available for sale securities	0	0
FHLB and other bank stock	0	0
Loans, net	6,556,914	5,207,971
Loans held for sale	0	0
Bank-owned life insurance	0	0
Derivative assets—Interest rate contracts	0	0
Financial Liabilities:
Deposits	0	0
Advances from the FHLB and other borrowings	0	0
Derivative liabilities—Interest rate contracts	$ 0	$ 0

Quarterly Financial Data (Un118

Quarterly Financial Data (Unaudited) - Summary of Quarterly Financial Data (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Selected Income Statement data:
Interest income	$ 85,580	$ 80,800	$ 77,208	$ 75,728	$ 71,157	$ 65,023	$ 57,411	$ 55,449	$ 319,316	$ 249,040	$ 203,426
Interest expense	14,514	13,522	12,278	11,286	9,188	8,254	7,237	6,565	51,600	31,244	28,254
Net interest income	71,066	67,278	64,930	64,442	61,969	56,769	50,174	48,884	267,716	217,796	175,172
Provision for loan losses	2,249	1,990	1,976	1,440	2,329	675	2,470	1,349	7,655	6,823	10,243
Net interest income after provision for loan losses	68,817	65,288	62,954	63,002	59,640	56,094	47,704	47,535	260,061	210,973	164,929
Noninterest income	7,919	8,142	8,222	5,434	7,543	7,072	14,152	(54,089)	29,717	(25,322)	17,032
Noninterest expense	33,646	33,036	33,975	33,300	33,201	30,706	32,047	30,650	133,957	126,604	145,632
Income before income tax expense	43,090	40,394	37,201	35,136	33,982	32,460	29,809	(37,204)
Income tax expense	15,194	14,330	13,697	12,684	4,233	11,320	10,433	(20,330)	55,905	5,656	13,957
Net income	$ 27,896	$ 26,064	$ 23,504	$ 22,452	$ 29,749	$ 21,140	$ 19,376	$ (16,874)	$ 99,916	$ 53,391	$ 22,372
Earnings per share:
Basic earnings per share (in dollars per shares)	$ 0.68	$ 0.64	$ 0.58	$ 0.55	$ 0.73	$ 0.51	$ 0.47	$ (0.41)	$ 2.45	$ 1.29	$ 0.59
Diluted earnings per share (in dollars per shares)	$ 0.64	$ 0.60	$ 0.55	$ 0.52	$ 0.68	$ 0.48	$ 0.45	$ (0.41)	$ 2.31	$ 1.23	$ 0.58