FB Financial (FBK) 10-Q 12 May 17 2017 Q1 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2017	May 11, 2017
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 31, 2017
Document Fiscal Year Focus	2,017
Document Fiscal Period Focus	Q1
Trading Symbol	FBK
Entity Registrant Name	FB Financial Corp
Entity Central Index Key	1,649,749
Current Fiscal Year End Date	--12-31
Entity Filer Category	Non-accelerated Filer
Entity Common Stock, Shares Outstanding		24,154,323

Consolidated balance sheets (Un

Consolidated balance sheets (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
ASSETS
Cash and due from banks	$ 53,748	$ 50,157
Federal funds sold	18,512	13,037
Interest bearing deposits in financial institutions	57,292	73,133
Cash and cash equivalents	129,552	136,327
Investments:
Available-for-sale securities, at fair value	567,886	582,183
Federal Home Loan Bank stock, at cost	7,743	7,743
Loans held for sale, at fair value	365,173	507,442
Loans	1,900,995	1,848,784
Less: allowance for loan losses	22,898	21,747
Net loans	1,878,097	1,827,037
Premises and equipment, net	66,108	66,651
Foreclosed real estate, net	6,811	7,403
Interest receivable	7,247	7,241
Mortgage servicing rights	47,593	32,070
Goodwill	46,867	46,867
Core deposit intangible, net	4,171	4,563
Other assets	39,211	51,354
Total assets	3,166,459	3,276,881
Demand deposits
Noninterest-bearing	696,112	697,072
Interest-bearing	1,473,535	1,449,382
Savings deposits	142,019	134,077
Time deposits	389,533	391,031
Total deposits	2,701,199	2,671,562
Securities sold under agreements to repurchase	18,130	21,561
Short-term borrowings		150,000
Long-term debt	44,552	44,892
Accrued expenses and other liabilities	60,436	58,368
Total liabilities	2,824,317	2,946,383
Shareholders' equity :
Common stock, $1 par value; 75,000,000 and 25,000,000 shares authorized; 24,154,323 and 24,107,660 shares issued and outstanding at March 31, 2017 and December 31, 2016, respectively	24,155	24,108
Additional paid-in capital	214,160	213,480
Retained earnings	104,152	93,784
Accumulated other comprehensive loss, net	(325)	(874)
Total shareholders' equity	342,142	330,498
Total liabilities and shareholders' equity	$ 3,166,459	$ 3,276,881

Consolidated balance sheets (U3

Consolidated balance sheets (Unaudited) (Parenthetical) - $ / shares	Mar. 31, 2017	Dec. 31, 2016
Statement Of Financial Position [Abstract]
Common stock, par value	$ 1	$ 1
Common stock, shares authorized	75,000,000	25,000,000
Common stock, shares issued	24,154,323	24,107,660
Common stock, shares outstanding	24,154,323	24,107,660

Consolidated statements of inco

Consolidated statements of income (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Interest income:
Interest and fees on loans	$ 29,006	$ 24,312
Interest on securities
Taxable	2,567	3,045
Tax-exempt	1,040	705
Other	276	180
Total interest income	32,889	28,242
Deposits
Demand and savings accounts	1,531	1,397
Time deposits	583	362
Short-term borrowings	10	59
Long-term debt	514	481
Total interest expense	2,638	2,299
Net interest income	30,251	25,943
Provision for loan losses	(257)	(9)
Net interest income after provision for loan losses	30,508	25,952
Noninterest income:
Mortgage banking income	25,080	24,503
Service charges on deposit accounts	1,766	1,983
ATM and interchange fees	2,047	2,035
Investment services income	814	693
Gain on sale of securities	1	1,400
Gain (loss) on sales or write-downs of foreclosed assets	748	(11)
Gain on other assets		140
Other income	631	292
Total noninterest income	31,087	31,035
Noninterest expenses:
Salaries, commissions and employee benefits	29,006	23,788
Occupancy and equipment expense	3,109	3,170
Legal and professional fees	1,428	1,032
Data processing	1,501	728
Merger and conversion	487	606
Amortization of core deposit intangibles	392	552
Amortization of mortgage servicing rights		1,457
Impairment of mortgage servicing rights		773
Regulatory fees and deposit insurance assessments	435	487
Software license and maintenance fees	457	509
Advertising	2,932	2,250
Other expense	6,670	5,995
Total noninterest expense	46,417	41,347
Income before income taxes	15,178	15,640
Income tax expense (Note 7)	5,425	1,041
Net income	$ 9,753	$ 14,599
Per share information:
Basic	24,138,437	17,180,000
Fully diluted	24,610,991	17,180,000
Earnings per share
Basic	$ 0.40	$ 0.85
Fully diluted	$ 0.40	$ 0.85
Pro Forma (C Corporation basis) (Note 7):
Income tax expense	$ 5,425	$ 5,837
Net income	$ 9,753	$ 9,803
Earnings per share
Basic	$ 0.40	$ 0.57
Fully diluted	$ 0.40	$ 0.57

Consolidated statements of comp

Consolidated statements of comprehensive income (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Statement Of Income And Comprehensive Income [Abstract]
Net income	$ 9,753	$ 14,599
Other comprehensive income, net of tax:
Net change in unrealized (loss) gain in available-for-sale securities, net of taxes of $354 and $538	550	8,206
Reclassification adjustment for gain on sale of securities included in net income, net of tax expense of $0 and $157	(1)	(1,243)
Comprehensive income	$ 10,302	$ 21,562

Consolidated statements of com6

Consolidated statements of comprehensive income (Unaudited) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Statement Of Income And Comprehensive Income [Abstract]
Net change in unrealized gain (loss) in available for sale securities, tax	$ 354	$ 538
Reclassification adjustment for gain on sale of securities included in net income, tax	$ 0	$ 157

Consolidated statements of chan

Consolidated statements of changes in shareholders' equity (Unaudited) - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Income, Net
Balance at Dec. 31, 2015	$ 236,674	$ 17,180	$ 94,544	$ 122,493	$ 2,457
Net income	14,599			14,599
Other comprehensive income, net of taxes	6,963				6,963
Cash dividends paid	(5,000)			(5,000)
Balance at Mar. 31, 2016	253,236	17,180	94,544	132,092	9,420
Balance at Dec. 31, 2016	330,498	24,108	213,480	93,784	(874)
Fair value election on mortgage servicing rights, net of taxes of $396 (See Note 1)	615			615
Net income	9,753			9,753
Other comprehensive income, net of taxes	549				549
Stock based compensation expense	1,352		1,352
Restricted stock units vested and distributed, net of shares withheld for taxes	(625)	47	(672)
Balance at Mar. 31, 2017	$ 342,142	$ 24,155	$ 214,160	$ 104,152	$ (325)

Consolidated statements of cha8

Consolidated statements of changes in shareholders' equity (Unaudited) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Statement Of Stockholders Equity [Abstract]
Cash dividends paid, per share		$ 0.29
Fair Value Election on Mortgage Servicing Rights Retained Earnings Adjustment, Tax	$ 396

Consolidated Statements of Cash

Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Cash flows from operating activities:
Net income	$ 9,753	$ 14,599
Adjustments to reconcile net income to net cash used in operating activities:
Depreciation expense	1,002	1,015
Amortization of core deposit intangibles	392	552
Capitalization of mortgage servicing rights	(15,013)	(9,130)
Amortization of mortgage servicing rights		1,457
Change in fair value of mortgage servicing rights	501
Impairment of mortgage servicing rights		773
Stock-based compensation expense	1,352
Provision for loan losses	(257)	(9)
Provision for mortgage loan repurchases	183	390
Accretion of yield on purchased loans	(1,160)	(826)
Accretion of discounts and amortization of premiums on securities, net	708	289
Gain on sales of securities	(1)	(1,400)
Origination of loans held for sale	(1,346,535)	(749,775)
Proceeds from sale of loans held for sale	1,507,296	794,887
Gain on sale and change in fair value of loans held for sale	(22,833)	(22,507)
Net (gain) loss on sales or write-downs of foreclosed assets	(748)	11
(Gain) loss on other assets		(140)
Provision for deferred income tax	5,425	949
Changes in:
Other assets and interest receivable	11,954	(9,112)
Accrued expenses and other liabilities	(4,732)	(8,868)
Net cash provided by operating activities	147,287	13,155
Activity in available-for-sale securities:
Sales		102,263
Maturities, prepayments and calls	19,480	19,895
Purchases	(4,987)	(52,074)
Net increase in loans	(46,190)	(8,808)
Purchases of premises and equipment	(459)	(1,653)
Proceeds from the sale of foreclosed assets	2,228	1,560
Net cash (used in) provided by investing activities	(29,928)	61,183
Cash flows from financing activities:
Net increase in demand and savings deposits	31,135	41,438
Net increase (decrease) in time deposits	(1,498)	(10,779)
Net (decrease) increase in securities sold under agreements to repurchase	(3,431)	(64,744)
Increase (decrease) in short-term borrowings	(150,000)	(18,000)
Payments on long-term debt	(340)	(415)
Dividends paid		(5,000)
Net cash used in financing activities	(124,134)	(57,500)
Net change in cash and cash equivalents	(6,775)	16,838
Cash and cash equivalents at beginning of the period	136,327	97,723
Cash and cash equivalents at end of the period	129,552	114,561
Supplemental cash flow information:
Interest paid	2,330	2,361
Taxes paid	31	797
Supplemental noncash disclosures:
Transfers from loans to foreclosed real estate	888	530
Transfers from foreclosed real estate to loans		67
Transfers from loans held for sale to loans	4,341	$ 1,232
Fair value election of mortgage servicing rights	$ 1,011

Basis of Presentation

Basis of Presentation	3 Months Ended
	Mar. 31, 2017
Accounting Policies [Abstract]
Basis of presentation	Note (1)—Basis of presentation: FB Financial Corporation (the “Company”) is a bank holding company, headquartered in Nashville, Tennessee. FB Financial operates through its wholly owned banking subsidiary, FirstBank (the “Bank”), with 45 full-service bank branches across Tennessee, north Alabama and north Georgia, and a national mortgage business across the Southeast. The consolidated financial statements, including the notes thereto of the Company, formerly First South Bancorp, Inc. until the Company name was changed in 2016, have been prepared in accordance with United States generally accepted accounting principles (“GAAP’) interim reporting requirements, and therefore do not include all information and notes included in the annual consolidated financial statements in conformity with GAAP. These interim consolidated financial statements and notes thereto should be read in conjunction with the Company’s audited consolidated financial statements and accompanying notes included in the Company’s Annual Report on Form 10-K. The unaudited consolidated financial statements include all adjustments, consisting of normal recurring adjustments, necessary for a fair presentation of the results for the interim periods. The results for interim periods are not necessarily indicative of results for a full year. The accompanying consolidated financial statements have been prepared in conformity with GAAP and general banking industry. In preparing the financial statements, management is required to make estimates and assumptions that affect the reported amounts of assets and liabilities as of the date of the balance sheet and the reported results of operations for the periods then ended. Actual results could differ significantly from those estimates. Material estimates that are particularly susceptible to significant changes in the near term relate to the determination of the allowance for loan losses, the valuation of real estate acquired in connection with foreclosures or in satisfaction of loans, and the determination of the fair value of financial instruments, including investment securities, derivatives and mortgage servicing rights. In connection with the determination of the estimated fair value of foreclosed real estate and impaired loans, management obtains independent appraisals for significant properties. Certain prior period amounts have been reclassified to conform to the current period presentation without any impact on the reported amounts of net income or shareholders’ equity. On June 28, 2016, the Company declared a 100-for-1 stock split, increasing the number of issued and authorized shares from 171,800 to 17,180,000 and 250,000 to 25,000,000, respectively. Additional shares issued as a result of the stock split were distributed immediately upon issuance to the shareholder on that date. Share and per share amounts included in the consolidated financial statements and notes thereto reflect the effect of the split for all periods presented. Additionally, in July 2016, the Company increased the authorized shares from 25,000,000 to 75,000,000. On August 19, 2016, the Company filed a Registration Statement on Form S-1 with the Securities and Exchange Commission (“SEC”) which was declared effective by the SEC on September 15, 2016. The Company sold and issued 6,764,704 shares of common stock at $19 per share pursuant to that Registration Statement. Total proceeds received by the Company, net of offering costs, were approximately $115,525. The proceeds were used to fund a $55,000 distribution to the majority shareholder and to repay all $10,075 aggregate principal amount of subordinated notes held by the majority shareholder, plus any accrued and unpaid interest thereon. The Company qualifies as an “emerging growth company” as defined by the Jumpstart Our Business Startups Act (“JOBS Act”). The Company terminated its S-Corporation status and became a taxable corporate entity (“C Corporation”) on September 16, 2016 in connection with its initial public offering. Pro forma amounts for income tax expense and basic and diluted earnings per share have been presented assuming the Company’s pro forma combined effective tax rate of 37.32% for the three months ended March 31, 2016, as if it had been a C Corporation during that period. As of March 31, 2017, the Company is considered a “controlled company” and is controlled by the Company’s Executive Chairman and former sole shareholder, James W. Ayers. Basic earnings per common share are net income divided by the weighted average number of common shares outstanding during the period. Diluted earnings per common share include the dilutive effect of additional potential common shares issuable under the restricted stock units granted but not yet vested and distributable. Unearned compensation plus assumed proceeds from the applicable tax benefits are used to repurchase common stock at the average market price. There were no dilutive instruments outstanding during the three months ended March 31, 2016; therefore, diluted net income per common share is the same as basic net income per share for these periods. The following is a summary of the basic and diluted earnings per common share calculation for each of the periods presented: Three Months Ended March 31, 2017 2016 Basic earnings per share calculation: Net income $ 9,753 $ 14,599 Weighted-average basic shares outstanding 24,138,437 17,180,000 Basic earnings per share $ 0.40 $ 0.85 Diluted earnings per share: Net income $ 9,753 $ 14,599 Weighted-average basic shares outstanding 24,138,437 17,180,000 Average diluted common shares outstanding 472,554 — Weighted-average diluted shares outstanding 24,610,991 17,180,000 Diluted earnings per share $ 0.40 $ 0.85 Pro forma earnings per share: Pro forma net income $ 9,753 $ 9,803 Weighted-average basic shares outstanding 24,138,437 17,180,000 Pro forma basic earnings per share $ 0.40 $ 0.57 Pro forma diluted earnings per share: Pro forma net income $ 9,753 $ 9,803 Weighted-average diluted shares outstanding 24,610,991 17,180,000 Pro forma diluted earnings per share $ 0.40 $ 0.57 Except as set forth below, the Company did not adopt any new accounting policies that were not disclosed in the Company’s 2016 audited financial statements included on Form 10-K. As of January 1, 2017, the Company elected to account for its mortgage servicing rights under the fair value option as permitted under ASC 860-50-35, Transfers and Servicing There are currently no new accounting standards that have been issued that will have a significant impact on the Company’s financial position, results of operations or cash flows upon adoption that were not disclosed in the Company’s 2016 audited financial statements included on Form 10-K. 1

Mergers and acquisitions

Mergers and acquisitions	3 Months Ended
	Mar. 31, 2017
Business Combinations [Abstract]
Mergers and acquisitions	Note (2)—Mergers and acquisitions: Clayton Bank and Trust and American City Bank On February 8, 2017, the Company and FirstBank entered into a Stock Purchase Agreement (the “Purchase Agreement”) with Clayton HC, Inc., a Tennessee Corporation (“Seller”), Clayton Bank and Trust, a Tennessee state bank and wholly-owned subsidiary of Seller (“CBT”), American City Bank, a Tennessee state bank and wholly-owned subsidiary of Seller (“ACB,” and together with CBT, the “Clayton Banks”), and James L. Clayton, the majority shareholder of Seller (“Clayton”). On the terms and subject to the conditions set forth in the Purchase Agreement, FirstBank has committed to purchase from Seller all of the issued and outstanding shares of the Clayton Banks (the “Stock Purchase”). Following the consummation of the Stock Purchase, the Clayton Banks will merge with and into FirstBank, with FirstBank continuing as the surviving banking corporation. The acquisition is valued at approximately $284.2 million at the date of announcement. The Clayton Banks had approximately $1,199 million in assets, $1,065 million in loans and $929 million in deposits, and 18 banking offices in Tennessee as of March 31, 2017. Consummation of the Stock Purchase is subject to, among other things, the receipt of approval by regulatory authorities. The acquisition is expected to be completed sometime in the third quarter of 2017, subject to the satisfaction of the closing conditions thereto. In connection with the transaction, the Company incurred $487 in merger and conversion expenses during the three month ended March 31, 2017. Northwest Georgia Bank On September 18, 2015, the Bank completed its acquisition of Northwest Georgia Bank (NWGB), a bank headquartered in Ringgold, Georgia, pursuant to that certain Agreement and Plan of Merger dated April 27, 2015 by and between the Bank and NWGB. Pursuant to the Agreement and Plan of Merger, NWGB was merged with and into the Bank, with the Bank as the surviving entity. Prior to the acquisition, NWGB operated six banking locations in Georgia and Tennessee. The acquisition of NWGB allowed the Company to further its strategic initiatives by expanding its geographic footprint into certain markets of Georgia and Tennessee. The Company acquired NWGB in a $1,500 cash purchase. The Company recorded a bargain purchase gain of $2,794 and a core deposit intangible asset of $4,931. The fair value of the core deposit intangible is being amortized on a straight-line basis over the estimated useful life, currently expected to be approximately 10 years. In connection with the transaction, the Company incurred $606 in merger and conversion expenses during the three months ended March 31, 2016.

Investment securities

Investment securities	3 Months Ended
	Mar. 31, 2017
Investments Debt And Equity Securities [Abstract]
Investment securities	Note (3)—Investment securities: The amortized cost of securities and their fair values at March 31, 2017 and December 31, 2016 are shown below: March 31, 2017 Amortized cost Gross unrealized gains Gross unrealized losses Fair Value Securities Available-for-Sale Debt securities U.S. government agency securities $ 999 $ — $ (12 ) $ 987 Mortgage-backed securities - residential 432,499 824 (7,380 ) 425,943 Municipals, tax exempt 119,182 3,149 (1,771 ) 120,560 Treasury securities 11,817 — (44 ) 11,773 Total debt securities 564,497 3,973 (9,207 ) 559,263 Equity securities 8,762 1 (140 ) 8,623 Total securities available-for-sale $ 573,259 $ 3,974 $ (9,347 ) $ 567,886 December 31, 2016 Amortized cost Gross unrealized gains Gross unrealized losses Fair Value Securities Available-for-Sale Debt securities U.S. government agency securities $ 998 $ — $ (13 ) $ 985 Mortgage-backed securities - residential 450,874 939 (7,905 ) 443,908 Municipals, tax exempt 116,034 3,003 (2,114 ) 116,923 Treasury securities 11,809 — (52 ) 11,757 Total debt securities 579,715 3,942 (10,084 ) 573,573 Equity securities 8,744 1 (135 ) 8,610 Total securities available-for-sale $ 588,459 $ 3,943 $ (10,219 ) $ 582,183 Securities pledged at March 31, 2017 and December 31, 2016 had a carrying amount of $401,409 and $390,814, respectively, and were pledged to secure Federal Home Loan Bank advances, a Federal Reserve Bank line of credit, public deposits and repurchase agreements. The amortized cost and fair value of debt securities by contractual maturity at March 31, 2017 and December 31, 2016 are shown below. Maturities may differ from contractual maturities in mortgage-backed securities because the mortgage underlying the security may be called or repaid without any penalties. Therefore, mortgage-backed securities are not included in the maturity categories in the following maturity summary. March 31, 2017 December 31, 2016 Available-for-sale Available-for-sale Amortized cost Fair value Amortized cost Fair value Due in one year or less $ 11,332 $ 11,429 $ 9,290 $ 9,352 Due in one to five 28,982 30,069 25,520 26,340 Due in five to ten years 27,447 28,486 31,122 32,248 Due in over ten years 64,237 63,336 62,909 61,725 131,998 133,320 128,841 129,665 Mortgage-backed securities - residential 432,499 425,943 450,874 443,908 $ 564,497 $ 559,263 $ 579,715 $ 573,573 Sales of available-for-sale securities were as follows: Three Months Ended March 31, 2017 2016 Proceeds from sales $ — $ 102,263 Gross realized gains — 1,400 Gross realized losses — — The Company also recognized $1 in gains related to the early call of available-for-sale securities for the three months ended March 31, 2017. Subsequent to March 31, 2017, the Company sold $12,135 in available-for-sale securities and recognized a gain of $23 related to this transaction. The following tables show gross unrealized losses at March 31, 2017 and December 31, 2016, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position: March 31, 2017 Less than 12 months 12 months or more Total Fair Value Unrealized Loss Fair Value Unrealized Loss Fair Value Unrealized loss U.S. government agency securities $ 987 $ 12 $ — $ — $ 987 $ 12 Mortgage-backed securities - residential 376,680 6,730 18,307 650 394,987 7,380 Municipals, tax exempt 40,529 1,757 216 14 40,745 1,771 Treasury securities 11,773 44 — — 11,773 $ 44 Total debt securities 429,969 8,543 18,523 664 448,492 9,207 Equity securities — — 3,005 140 3,005 140 $ 429,969 $ 8,543 $ 21,528 $ 804 $ 451,497 $ 9,347 December 31, 2016 Less than 12 months 12 months or more Total Fair Value Unrealized Loss Fair Value Unrealized Loss Fair Value Unrealized loss U.S. government agency securities $ 985 $ 13 $ — $ — $ 985 $ 13 Mortgage-backed securities - residential 390,595 7,230 19,073 675 409,668 7,905 Municipals, tax exempt 43,132 2,114 — — 43,132 2,114 Treasury securities 10,256 52 — — 10,256 52 Total debt securities 444,968 9,409 19,073 675 464,041 10,084 Equity securities — — 3,126 135 3,126 135 $ 444,968 $ 9,409 $ 22,199 $ 810 $ 467,167 $ 10,219 As of March 31, 2017 and December 31, 2016, the Company’s securities portfolio consisted of 335 and 329 securities, 143 and 151 of which were in an unrealized loss position, respectively. The Company evaluates securities with unrealized losses for other-than-temporary impairment (OTTI), and the Company recorded no OTTI for the three months ended March 31, 2017 and 2016. The unrealized losses associated with these investment securities are primarily driven by interest rates and are not due to the credit quality of the securities. For debt securities, the Company currently does not intend to sell those investments with unrealized losses, and it is unlikely that the Company will be required to sell the investments before recovery of their amortized cost bases, which may be maturity. For equity securities, the Company has evaluated the near-term prospects of the investment in relation to the severity and duration of the impairment and based on that evaluation has the ability and intent to hold these investments until a recovery of fair value.

Loans and Allowance for Loan Lo

Loans and Allowance for Loan Losses	3 Months Ended
	Mar. 31, 2017
Receivables [Abstract]
Loans and allowance for loan losses	Note (4)—Loans and allowance for loan losses: Loans outstanding at March 31, 2017 and December 31, 2016, by major lending classification are as follows: March 31, December 31, 2017 2016 Commercial and industrial $ 399,333 $ 386,233 Construction 267,998 245,905 Residential real estate: 1-to-4 family mortgage 302,166 294,924 Residential line of credit 177,928 177,190 Multi-family mortgage 45,244 44,977 Commercial real estate: Owner occupied 359,120 357,346 Non-owner occupied 273,716 267,902 Consumer and other 75,490 74,307 Gross loans 1,900,995 1,848,784 Less: Allowance for loan losses (22,898 ) (21,747 ) Net loans $ 1,878,097 $ 1,827,037 As of March 31, 2017 and December 31, 2016, $287,214 and $525,180, respectively, of 1-to-4 family mortgage loans and loans held for sale were pledged to the Federal Home Loan Bank of Cincinnati securing advances against the Bank’s line. As of March 31, 2017 and December 31, 2016, $31,309 and $40,537, respectively, of multi-family mortgage loans were pledged to the Federal Home Loan Bank of Cincinnati securing advances against the Bank’s line. The following provides the allowance for loan losses by portfolio segment and the related investment in loans net of unearned interest for the three months ended March 31, 2017 and 2016: Commercial and industrial Construction 1-to-4 family residential mortgage Residential line of credit Multi- family residential mortgage Commercial real estate owner occupied Commercial real estate non-owner occupied Consumer and other Total Three Months Ended March 31, 2017 Beginning balance - December 31, 2016 $ 5,309 $ 4,940 $ 3,197 $ 1,613 $ 504 $ 3,302 $ 2,019 $ 863 $ 21,747 Provision for loan losses 179 635 (239 ) (155 ) 4 81 (998 ) 236 (257 ) Recoveries of loans previously charged-off 83 29 26 56 — 4 1,639 13 1,850 Loans charged off (169 ) (6 ) (88 ) — — — — (179 ) (442 ) Ending balance - March 31, 2017 $ 5,402 $ 5,598 $ 2,896 $ 1,514 $ 508 $ 3,387 $ 2,660 $ 933 $ 22,898 Commercial and industrial Construction 1-to-4 family residential mortgage Residential line of credit Multi- family residential mortgage Commercial real estate owner occupied Commercial real estate non-owner occupied Consumer and other Total Three Months Ended March 31, 2016 Beginning balance - December 31, 2015 $ 5,135 $ 5,143 $ 4,176 $ 2,201 $ 311 $ 3,682 $ 2,622 $ 1,190 $ 24,460 Provision for loan losses 99 (666 ) 42 (163 ) 279 325 113 (38 ) (9 ) Recoveries of loans previously charged-off 10 41 62 37 — 6 4 72 232 Loans charged off (2 ) — — — — — — (250 ) (252 ) Ending balance - March 31, 2016 $ 5,242 $ 4,518 $ 4,280 $ 2,075 $ 590 $ 4,013 $ 2,739 $ 974 $ 24,431 The following table provides the allocation of the allowance for loan losses by loan category broken out between loans individually evaluated for impairment and loans collectively evaluated for impairment as of March 31, 2017 and December 31, 2016: March 31, 2017 Commercial and industrial Construction 1-to-4 family residential mortgage Residential line of credit Multi- family residential mortgage Commercial real estate owner occupied Commercial real estate non-owner occupied Consumer and other Total Amount of allowance allocated to: Individually evaluated for impairment $ 34 $ — $ 22 $ — $ — $ 102 $ 85 $ — $ 243 Collectively evaluated for impairment 5,368 5,598 2,874 1,514 508 3,285 2,575 933 22,655 Acquired with deteriorated credit quality — — — — — — — — — Ending balance - March 31, 2017 $ 5,402 $ 5,598 $ 2,896 $ 1,514 $ 508 $ 3,387 $ 2,660 $ 933 $ 22,898 December 31, 2016 Commercial and industrial Construction 1-to-4 family residential mortgage Residential line of credit Multi- family residential mortgage Commercial real estate owner occupied Commercial real estate non-owner occupied Consumer and other Total Year-end amount of allowance allocated to: Individually evaluated for impairment $ 135 $ — $ 23 $ — $ — $ 113 $ 242 $ — $ 513 Collectively evaluated for impairment 5,174 4,940 3,174 1,613 504 3,189 1,777 863 21,234 Acquired with deteriorated credit quality — — — — — — — — — Ending balance - December 31, 2016 $ 5,309 $ 4,940 $ 3,197 $ 1,613 $ 504 $ 3,302 $ 2,019 $ 863 $ 21,747 The following table provides the amount of loans by loan category broken between loans individually evaluated for impairment and loans collectively evaluated for impairment as of March 31, 2017 and December 31, 2016: March 31, 2017 Commercial and industrial Construction 1-to-4 family residential mortgage Residential line of credit Multi- family residential mortgage Commercial real estate owner occupied Commercial real estate non-owner occupied Consumer and other Total Loans, net of unearned income Individually evaluated for impairment $ 1,272 $ 305 $ 2,216 $ — $ 1,014 $ 2,459 $ 2,128 $ 25 $ 9,419 Collectively evaluated for impairment 397,583 263,424 297,817 177,928 44,205 352,623 266,436 75,461 1,875,477 Acquired with deteriorated credit quality 478 4,269 2,133 — 25 4,038 5,152 4 16,099 Ending balance - March 31, 2017 $ 399,333 $ 267,998 $ 302,166 $ 177,928 $ 45,244 $ 359,120 $ 273,716 $ 75,490 $ 1,900,995 December 31, 2016 Commercial and industrial Construction 1-to-4 family residential mortgage Residential line of credit Multi- family residential mortgage Commercial real estate owner occupied Commercial real estate non-owner occupied Consumer and other Total Loans, net of unearned income Individually evaluated for impairment $ 1,476 $ 2,686 $ 2,471 $ 311 $ 1,027 $ 2,752 $ 2,201 $ 27 $ 12,951 Collectively evaluated for impairment 384,279 238,900 290,346 176,879 43,922 350,812 260,361 74,276 1,819,775 Acquired with deteriorated credit quality 478 4,319 2,107 — 28 3,782 5,340 4 16,058 Ending balance - December 31, 2016 $ 386,233 $ 245,905 $ 294,924 $ 177,190 $ 44,977 $ 357,346 $ 267,902 $ 74,307 $ 1,848,784 The Company categorizes loans into risk categories based on relevant information about the ability of borrowers to service their debt such as: current financial information, historical payment experience, credit documentation, public information, and current economic trends, among other factors. The Company analyzes loans individually by classifying the loans as to credit risk. The Company’s risk rating definitions include: Watch. Loans rated as watch includes loans in which management believes conditions have occurred, or may occur, which could result in the loan being downgraded to a worse rated category. Also included in watch are loans rated as special mention, which have a potential weakness that deserves management’s close attention. If left uncorrected, these potential weaknesses may result in deterioration of the repayment prospects for the loan or of the institution’s credit position at some future date. Substandard. Loans rated as substandard are inadequately protected by the current net worth and paying capacity of the obligor or of the collateral pledged, if any. Loans so rated have a well-defined weakness or weaknesses that jeopardize the liquidation of the debt. They are characterized by the distinct possibility that the institution will sustain some loss if the deficiencies are not corrected. Also included in this category are loans considered doubtful, which have all the weaknesses previously described and management believes those weaknesses may make collection or liquidation in full, on the basis of currently existing facts, conditions, and values, highly questionable and improbable. Loans not meeting the criteria above are considered to be pass rated loans. The following table shows credit quality indicators by portfolio class at March 31, 2017 and December 31, 2016: March 31, 2017 Pass Watch Substandard Total Commercial and industrial $ 362,172 $ 34,722 $ 2,439 $ 399,333 Construction 260,791 2,341 4,866 267,998 Residential real estate: 1-to-4 family mortgage 285,819 6,894 9,453 302,166 Residential line of credit 173,491 2,016 2,421 177,928 Multi-family mortgage 44,058 147 1,039 45,244 Commercial real estate: Owner occupied 341,784 8,947 8,389 359,120 Non-owner occupied 258,887 6,283 8,546 273,716 Consumer and other 74,742 345 403 75,490 Total $ 1,801,744 $ 61,695 $ 37,556 $ 1,900,995 December 31, 2016 Pass Watch Substandard Total Commercial and industrial $ 351,046 $ 31,074 $ 4,113 $ 386,233 Construction 236,588 4,612 4,705 245,905 Residential real estate: 1-to-4 family mortgage 277,948 6,945 10,031 294,924 Residential line of credit 173,011 1,875 2,304 177,190 Multi-family mortgage 43,770 152 1,055 44,977 Commercial real estate: Owner occupied 338,698 10,459 8,189 357,346 Non-owner occupied 249,877 10,273 7,752 267,902 Consumer and other 73,454 417 436 74,307 Total $ 1,744,392 $ 65,807 $ 38,585 $ 1,848,784 Loans acquired in business combinations that exhibited at the date of acquisition evidence of deterioration of credit quality since origination such that it was probable that all contractually required payments would not be collected are considered to be purchased credit impaired and were as follows at March 31, 2017 and December 31, 2016: March 31, 2017 December 31, 2016 Commercial and industrial $ 478 $ 478 Construction 4,269 4,319 Residential real estate: 1-to-4 family mortgage 2,133 2,107 Residential line of credit — — Multi-family mortgage 25 28 Commercial real estate: Owner occupied 4,038 3,782 Non-owner occupied 5,152 5,340 Consumer and other 4 4 Total $ 16,099 $ 16,058 The following table presents the current value of loans determined to be impaired at the time of acquisition at March 31, 2017 and December 31, 2016: March 31, 2017 December 31, 2016 Contractually-required principal and interest $ 21,997 $ 22,961 Nonaccretable difference (3,756 ) (4,459 ) Cash flows expected to be collected 18,241 18,502 Accretable yield (2,142 ) (2,444 ) Carrying value $ 16,099 $ 16,058 Changes in accretable yield and nonaccretable difference of purchased loans were as follows: Accretable yield Nonaccretable Difference Purchased Credit Impaired Purchased Non-impaired Purchased Credit Impaired Purchased Non-impaired Total Balance at December 31, 2016 $ (2,444 ) $ (1,240 ) $ (4,459 ) $ — $ (8,143 ) Principal reductions/ pay-offs (698 ) — 698 — — Charge-offs — — 5 — 5 Recoveries (23 ) — — — (23 ) Accretion 1,023 137 — — 1,160 Balance at March 31, 2017 $ (2,142 ) $ (1,103 ) $ (3,756 ) $ — $ (7,001 ) Balance at December 31, 2015 $ (1,637 ) $ (2,008 ) $ (8,369 ) $ (209 ) $ (12,223 ) Principal reductions/ pay-offs (231 ) — 231 — — Charge-offs — — 440 — 440 Sale of credit card portfolio — — — 70 70 Accretion 408 418 — — 826 Balance at March 31, 2016 $ (1,460 ) $ (1,590 ) $ (7,698 ) $ (139 ) $ (10,887 ) Nonperforming loans include loans that are no longer accruing interest (non-accrual loans) and loans past due ninety or more days and still accruing interest. Nonperforming loans and impaired loans are defined differently. Some loans may be included in both categories, whereas other loans may only be included in one category. Loans acquired with deteriorated credit quality amounting to $16,099 and $16,058, respectively, at March 31, 2017 and December 31, 2016 have been excluded from the tables below in accordance with ASC-310-10-50, Receivables- Overall- Disclosure The following table provides the period-end amounts of loans that are past due thirty to eighty-nine days, past due ninety or more days and still accruing interest, loans not accruing interest and loans current on payments accruing interest by category at March 31, 2017 and December 31, 2016: March 31, 2017 30-89 days past due 90 days or more and accruing interest Non-accrual loans Loans current on payments and accruing interest Total Commercial and industrial $ 436 $ 123 $ 1,092 $ 397,204 $ 398,855 Construction 174 194 248 263,113 263,729 Residential real estate: 1-to-4 family mortgage 3,601 346 1,950 294,136 300,033 Residential line of credit 1,307 780 285 175,556 177,928 Multi-family mortgage — — — 45,219 45,219 Commercial real estate: Owner occupied 217 81 1,933 352,851 355,082 Non-owner occupied 81 — 2,170 266,313 268,564 Consumer and other 355 66 28 75,037 75,486 Total $ 6,171 $ 1,590 $ 7,706 $ 1,869,429 $ 1,884,896 December 31, 2016 30-89 days past due 90 days or more and accruing interest Non-accrual loans Loans current on payments and accruing interest Total Commercial and industrial $ 262 $ 127 $ 1,297 $ 384,069 $ 385,755 Construction 441 17 254 240,874 241,586 Residential real estate: 1-to-4 family mortgage 3,130 697 2,289 286,701 292,817 Residential line of credit 1,139 433 601 175,017 177,190 Multi-family mortgage — — — 44,949 44,949 Commercial real estate: Owner occupied 186 — 2,007 351,371 353,564 Non-owner occupied 158 — 2,251 260,153 262,562 Consumer and other 433 55 30 73,785 74,303 Total $ 5,749 $ 1,329 $ 8,729 $ 1,816,919 $ 1,832,726 Impaired loans recognized in conformity with ASC 310 at March 31, 2017 and December 31, 2016, segregated by class, were as follows: March 31, 2017 Recorded investment Unpaid principal Related allowance With a related allowance recorded: Commercial and industrial $ 727 $ 869 $ 34 Construction — — — Residential real estate: 1-to-4 family mortgage 99 365 22 Residential line of credit — — — Multi-family mortgage — — — Commercial real estate: Owner occupied 623 654 102 Non-owner occupied 521 1,048 85 Consumer and other — — — Total $ 1,970 $ 2,936 $ 243 With no related allowance recorded Commercial and industrial $ 545 $ 676 $ — Construction 305 317 — Residential real estate: 1-to-4 family mortgage 2,117 2,118 — Residential line of credit — — — Multi-family mortgage 1,014 1,014 — Commercial real estate: Owner occupied 1,836 2,943 — Non-owner occupied 1,607 2,339 — Consumer and other 25 26 — Total $ 7,449 $ 9,433 $ — Total impaired loans $ 9,419 $ 12,369 $ 243 December 31, 2016 Recorded investment Unpaid principal Related allowance With a related allowance recorded: Commercial and industrial $ 854 $ 854 $ 135 Construction — — — Residential real estate: 1-to-4 family mortgage 103 369 23 Residential line of credit — — — Multi-family mortgage — — — Commercial real estate: Owner occupied 635 654 113 Non-owner occupied 1,151 1,678 242 Consumer and other 1 1 — Total $ 2,744 $ 3,556 $ 513 With no related allowance recorded: Commercial and industrial $ 622 $ 746 $ — Construction 2,686 2,694 — Residential real estate: 1-to-4 family mortgage 2,368 2,370 — Residential line of credit 311 321 — Multi-family mortgage 1,027 1,027 — Commercial real estate: Owner occupied 2,117 3,205 — Non-owner occupied 1,050 1,781 — Consumer and other 26 26 — Total $ 10,207 $ 12,170 $ — Total impaired loans $ 12,951 $ 15,726 $ 513 Average recorded investment and interest income on a cash basis recognized during the three months ended March 31, 2017 and 2016 on impaired loans, segregated by class, were as follows: Three Months Ended March 31, 2017 Average recorded investment Interest income recognized (cash basis) With a related allowance recorded: Commercial and industrial $ 791 $ 5 Construction — — Residential real estate: 1-to-4 family mortgage 101 — Residential line of credit — — Multi-family mortgage — — Commercial real estate: Owner occupied 629 12 Non-owner occupied 836 — Consumer and other 1 — Total $ 2,357 $ 17 With no related allowance recorded Commercial and industrial 584 $ 9 Construction 1,496 5 Residential real estate: 1-to-4 family mortgage 2,243 17 Residential line of credit 156 — Multi-family mortgage 1,021 11 Commercial real estate: Owner occupied 1,977 38 Non-owner occupied 1,329 — Consumer and other 26 1 Total $ 8,828 $ 81 Total impaired loans $ 11,185 $ 98 Three Months Ended March 31, 2016 With a related allowance recorded: Commercial and industrial $ 1,051 $ 5 Construction 154 — Residential real estate: 1-to-4 family mortgage 2,187 16 Residential line of credit 163 — Multi-family mortgage — — Commercial real estate: Owner occupied 1,310 — Non-owner occupied 2,905 6 Consumer and other — — Total $ 7,770 $ 27 With no related allowance recorded Commercial and industrial $ 573 $ 1 Construction 2,685 31 Residential real estate: 1-to-4 family mortgage 1,749 42 Residential line of credit — — Multi-family mortgage 1,066 1 Commercial real estate: Owner occupied 1,095 30 Non-owner occupied 1,112 — Consumer and other — — Total $ 8,280 $ 105 Total impaired loans $ 16,050 $ 132 December 31, 2016 Recorded investment Unpaid principal Related allowance Average recorded investment Interest income recognized (cash basis) With a related allowance recorded: Commercial and industrial $ 854 $ 854 $ 135 $ 994 $ 17 Construction — — — 154 — Residential real estate: 1-to-4 family mortgage 103 369 23 1,750 1 Residential line of credit — — — — — Multi-family mortgage — — — 1,756 — Commercial real estate: Owner occupied 635 654 113 1,777 25 Non-owner occupied 1,151 1,678 242 1 — Consumer and other 1 1 — — — Total $ 2,744 $ 3,556 $ 513 $ 6,432 $ 43 With no related allowance recorded: Commercial and industrial $ 622 $ 746 $ — $ 494 $ 20 Construction 2,686 2,694 — 2,622 132 Residential real estate: 1-to-4 family mortgage 2,368 2,370 — 1,329 137 Residential line of credit 311 321 — 156 10 Multi-family mortgage 1,027 1,027 — 1,051 37 Commercial real estate: Owner occupied 2,117 3,205 — 1,120 119 Non-owner occupied 1,050 1,781 — 1,050 — Consumer and other 26 26 — 13 — Total $ 10,207 $ 12,170 $ — $ 7,835 $ 455 Total impaired loans $ 12,951 $ 15,726 $ 513 $ 14,267 $ 498 As of March 31, 2017 and December 31, 2016, the Company has a recorded investment in troubled debt restructurings of $8,681 and $8,802, respectively. The modifications included extensions of the maturity date and/or a stated rate of interest to one lower than the current market rate. The Company has allocated $234 and $402 of specific reserves for those loans at March 31, 2017 and December 31, 2016, respectively, and has committed to lend additional amounts totaling up to $0 and $1, respectively to these customers. Of these loans, $4,262 and $4,265 were classified as non-accrual loans as of March 31, 2017 and December 31, 2016. The following table presents the financial effect of TDRs recorded during the periods indicated: Three Months Ended March 31, 2017 Number of loans Pre-modification outstanding recorded investment Post-modification outstanding recorded investment Charge offs and specific reserves Commercial and industrial 1 $ 5 $ 5 $ — Commercial real estate: Owner occupied 1 377 377 — Non-owner occupied 2 711 711 — Total 4 $ 1,093 $ 1,093 $ — Three Months Ended March 31, 2016 Number of loans Pre-modification outstanding recorded investment Post-modification outstanding recorded investment Charge offs and specific reserves Residential real estate: 1-to-4 family mortgage 2 $ 443 $ 433 $ 39 Total 2 $ 443 $ 433 $ 39 There were no loans modified as troubled debt restructurings for which there was a payment default within twelve months following the modification during the three months ended March 31, 2017 or 2016. A loan is considered to be in payment default once it is 90 days contractually past due under the modified terms. The terms of certain other loans were modified during the three months ended March 31, 2017 and 2016 that did not meet the definition of a troubled debt restructuring. The modification of these loans involved either a modification of the terms of a loan to borrowers who were not experiencing financial difficulties or a delay in a payment that was considered to be insignificant. In order to determine whether a borrower is experiencing financial difficulty, an evaluation is performed of the probability that the borrower will be in payment default on any of its debt in the foreseeable future without the modification. This evaluation is performed under the company’s internal underwriting policy.

Foreclosed Real Estate

Foreclosed Real Estate	3 Months Ended
	Mar. 31, 2017
Real Estate [Abstract]
Foreclosed Real Estate	Note (5)—Foreclosed real estate: The amount reported as real estate acquired through foreclosure proceedings is carried at fair value less estimated cost to sell the property. The following table summarizes the foreclosed real estate for the three months ended March 31, 2017 and 2016: Three Months Ended March 31, 2017 2016 Balance at beginning of period $ 7,403 $ 11,641 Transfers from loans 888 530 Properties sold (2,228 ) (1,560 ) Gain on sale of foreclosed assets 871 57 Transferred to loans — (67 ) Write-downs and partial liquidations (123 ) (68 ) Balance at end of period $ 6,811 $ 10,533 Foreclosed residential real estate properties included in the table above totaled $2,568 and $2,143 as of March 31, 2017 and December 31, 2016, respectively. The recorded investment in residential mortgage loans secured by residential real estate properties for which foreclosure proceedings are in process totaled $153 and $96 at March 31, 2017 and December 31, 2016, respectively.

Mortgage Servicing Rights

Mortgage Servicing Rights	3 Months Ended
	Mar. 31, 2017
Transfers And Servicing Of Financial Assets [Abstract]
Mortgage servicing rights	Note (6)—Mortgage servicing rights: Changes in the Company’s mortgage servicing rights were as follows for the three months ended March 31, 2017 and 2016: Three Months Ended March 31, 2017 2016 Carrying value at December 31 $ 32,070 $ 29,711 Fair value impact of change in accounting policy (See Note 1) 1,011 — Carrying value at beginning of period 33,081 29,711 Capitalization 15,013 9,130 Amortization — (1,457 ) Impairment — (773 ) Change in fair value: Due to pay-offs/pay-downs (265 ) — Due to change in valuation inputs or assumptions (236 ) — Carrying value at March 31 $ 47,593 $ 36,611 The following table summarizes servicing income and expense included in mortgage banking income and other noninterest expense within the Mortgage Segment operating results, respectively, for the three months ended March 31, 2017 and 2016, respectively: Three Months Ended March 31, 2017 2016 Servicing income: Servicing income $ 2,748 $ 1,996 Change in fair value of mortgage servicing rights (501 ) — Gross servicing income 2,247 1,996 Servicing expenses: Servicing asset amortization — 1,457 Servicing asset impairment — 773 Other servicing expenses 926 408 Gross servicing expenses 926 2,638 Net servicing (loss) income $ 1,321 $ (642 ) Data and key economic assumptions related to the Company’s mortgage servicing rights as of March 31, 2017 and December 31, 2016 are as follows: March 31, December 31, 2017 2016 Unpaid principal balance $ 4,102,412 $ 2,833,958 Weighted-average prepayment speed (CPR) 8.40 % 8.40 % Estimated impact on fair value of a 10% increase (1,800 ) (1,256 ) Estimated impact on fair value of a 20% increase (3,487 ) (2,434 ) Discount rate 9.79 % 9.54 % Estimated impact on fair value of a 100 bp increase (1,987 ) (1,394 ) Estimated impact on fair value of a 200 bp increase (3,821 ) (2,679 ) Weighted-average coupon interest rate 3.65 % 3.59 % Weighted-average servicing fee (basis points) 28 27 Weighted-average remaining maturity (in months) 326 328 During the year ended December 31, 2016, the Company sold $34,118 of mortgage servicing rights on $3,332,903 of serviced mortgage loans, of which the Company continued to subservice until they were transferred in during the first quarter and into April 2017. As of March 31, 2017 and December 31, 2016, the Company subserviced $787,905 and $3,332,903, respectively, related to this transaction. On March 7, 2017, the Company signed a letter of intent to sell approximately $1,086,465 in serviced mortgage loan balances. The sale was completed on April 7, 2017, recognizing a gain of $17 and transaction costs of approximately $248 in conjunction with the transaction.

Income Taxes

Income Taxes	3 Months Ended
	Mar. 31, 2017
Income Tax Disclosure [Abstract]
Income Taxes	Note (7)—Income taxes: In connection with the initial public offering, as discussed in Note 1, the Company terminated its S-Corporation status and became a taxable entity (C Corporation) on September 16, 2016. As such, periods prior to September 16, 2016 will only reflect an effective state income tax rate. During the third quarter of 2016, the deferred tax net liability increased $13,181 from the conversion in the taxable status. The deferred tax net liability is the result of timing differences in the recognition of income/deductions for generally accepted accounting principles (GAAP) and tax purposes. The consolidated statements of income present pro forma statements of income for the three months ended March 31, 2016. Allocation of federal and state income taxes between current and deferred portions is as follows: For the three months ended March 31, 2017 2016 Current $ — $ 92 Deferred 5,425 949 Total $ 5,425 $ 1,041 Federal income tax expense for the three months ended March 31, 2017 and 2016 differs from the statutory federal rate of 35% due to the following: For the three months ended March 31, 2017 2016 Federal taxes calculated at statutory rate $ 5,305 $ — Increase (decrease) resulting from: State taxes, net of federal benefit 610 1,001 Benefit of equity based compensation (195 ) — Other (295 ) 40 Income tax expense, as reported $ 5,425 $ 1,041 The components of the net deferred tax liability at March 31, 2017 and December 31, 2016, are as follows: March 31, December 31, 2017 2016 Deferred tax assets: Allowance for loan losses $ 8,967 $ 8,516 Amortization of core deposit intangible 1,031 996 Compensation related 4,491 7,552 Unrealized loss on securities 2,107 2,462 Net operating loss carryforward 3,212 — Other 2,349 2,430 Subtotal 22,157 21,956 Deferred tax liabilities: FHLB stock dividends (827 ) (827 ) Depreciation (6,476 ) (6,548 ) Mortgage servicing rights (18,637 ) (12,558 ) Other (6,175 ) (6,203 ) Subtotal (32,115 ) (26,136 ) Net deferred tax liability $ (9,958 ) $ (4,180 ) In recording the impact of the conversion to a C Corporation during the third quarter of 2016, the Company recorded a deferred income tax expense of $2,955 related to the unrealized gain on available for sale securities through the income statement in accordance with ASC 740-20-45-8; therefore, the amount shown in other comprehensive income has not been reduced by the above expense. This difference will remain in OCI until the underlying securities are sold or mature in accordance with the portfolio approach allowed under ASC 740. Tax periods for all fiscal years after 2012 remain open to examination by the federal and state taxing jurisdictions to which the Company is subject.

Commitments and Contingencies

Commitments and Contingencies	3 Months Ended
	Mar. 31, 2017
Commitments And Contingencies Disclosure [Abstract]
Commitments and Contingencies	Note (8)—Commitments and contingencies: Some financial instruments, such as loan commitments, credit lines, letters of credit, and overdraft protection, are issued to meet customer financing needs. These are agreements to provide credit or to support the credit of others, as long as conditions established in the contract are met, and usually have expiration dates. Commitments may expire without being used. Off-balance sheet risk to credit loss exists up to the face amount of these instruments, although material losses are not anticipated. The same credit policies are used to make such commitments as are used for loans, including obtaining collateral at exercise of the commitment. March 31, December 31, 2017 2016 Commitments to extend credit, excluding interest rate lock commitments $ 647,395 $ 726,122 Letters of credit 23,486 22,547 Balance at end of period $ 670,881 $ 748,669 In connection with the sale of mortgage loans to third party investors, the Bank makes usual and customary representations and warranties as to the propriety of its origination activities. Occasionally, the investors require the Bank to repurchase loans sold to them under the terms of the warranties. When this happens, the loans are recorded at fair value with a corresponding charge to a valuation reserve. The total principal amount of loans repurchased (or indemnified for) was $849 for three months ended March 31, 2017 and 2016. The Bank has established a reserve associated with loan repurchases. This reserve is recorded in accrued expenses and other liabilities on the consolidated balance sheet. The following table summarizes the activity in the repurchase reserve: March 31, 2017 2016 Balance at beginning of period $ 2,659 $ 2,156 Provision for loan repurchases or indemnifications 183 390 Recoveries on previous losses — — Losses on loans repurchased or indemnified — — Balance at end of period $ 2,842 $ 2,546

Derivatives

Derivatives	3 Months Ended
	Mar. 31, 2017
Derivative Instruments And Hedging Activities Disclosure [Abstract]
Derivatives	Note (9)—Derivatives: The Company utilizes derivative financial instruments as part of its ongoing efforts to manage its interest rate risk exposure as well as the exposure for its customers. Derivative financial instruments are included in the Consolidated Balance Sheets line item “Other assets” or “Other liabilities” at fair value in accordance with ASC 815, “ Derivatives and Hedging The Company enters into commitments to originate loans whereby the interest rate on the loan is determined prior to funding (rate-lock commitments). Under such commitments, interest rates for a mortgage loan are typically locked in for forty-five days with the customer. These interest rate lock commitments are recorded at fair value in the Company’s Consolidated Balance Sheets. The notional amount of commitments to fund fixed-rate mortgage loans was $449,009 and $532,920 at March 31, 2017 and December 31, 2016, respectively. The Company also enters into mandatory delivery forward commitments to sell residential mortgage loans to secondary market investors. The notional amount of commitments to sell residential mortgage loans to secondary market investors was $598,500 and $829,000 at March 31, 2017 and December 31, 2016, respectively. Gains and losses arising from changes in the valuation of the commitments are recognized currently in earnings and are reflected under the line item “Mortgage banking income” on the Consolidated Statements of Income. The Company has entered into derivative instruments that are not designated as hedging instruments to help its commercial customers manage their exposure to interest rate fluctuations. To mitigate the interest rate risk associated with these customer contracts, the Company enters into an offsetting derivative contract position. The Company manages its credit risk, or potential risk of default by its commercial customers, through credit limit approval and monitoring procedures. At March 31, 2017 and December 31, 2016, the Company had notional amounts of $78,223 and $22,243, respectively, on interest rate contracts with corporate customers and $78,223 and $22,243, respectively, in offsetting interest rate contracts with other financial institutions to mitigate the Company’s rate exposure on its corporate customers’ contracts and certain fixed-rate loans. The fair value on the swaps was $1,215 and $586 at March 31, 2017 and December 31, 2016, respectively. Certain financial instruments, including derivatives, may be eligible for offset in the Consolidated Balance Sheet when the “right of setoff” exists or when the instruments are subject to an enforceable master netting agreement, which includes the right of the non-defaulting party or non-affected party to offset recognized amounts, including collateral posted with the counterparty, to determine a net receivable or net payable upon early termination of the agreement. Certain of the Company’s derivative instruments are subject to master netting agreements. The Company has not elected to offset such financial instruments in the Consolidated Balance Sheets. The following table provides details on the Company’s derivative financial instruments as of the dates presented: Balance Sheet Classification Fair Value March 31, December 31, 2017 2016 Derivative assets: Not designated as hedging: Interest rate swaps Other Assets $ 1,215 $ 586 Forward commitments Other Assets — 12,731 Interest rate-lock commitments Other Assets 9,370 6,428 Total $ 10,585 $ 19,745 Derivative liabilities: Not designated as hedging: Interest rate swaps Other Liabilities $ 1,215 $ 586 Forward commitments Other Liabilities 3,445 — Total $ 4,660 $ 586 Gains (losses) included in the Consolidated Statements of Income related to the Company’s derivative financial instruments were as follows: Three Months Ended March 31, 2017 2016 Derivatives not designated as hedging instruments: Interest rate lock commitments: Included in mortgage banking income $ 2,942 $ 7,268 Forward commitments: Included in mortgage banking income (3,320 ) (8,753 ) Total $ (378 ) $ (1,485 )

Fair Value of Financial Instrum

Fair Value of Financial Instruments	3 Months Ended
	Mar. 31, 2017
Fair Value Disclosures [Abstract]
Fair value of financial instruments	Note (10)—Fair value of financial instruments: ASC 820-10 establishes a framework for measuring the fair value of assets and liabilities according to a hierarchy that prioritizes the inputs to valuation techniques used to measure fair value into three broad levels. The fair value hierarchy gives the highest priority to quoted prices in active markets for identical assets and liabilities (Level 1) and the lowest priority to unobservable inputs (Level 3). The hierarchy maximizes the use of observable inputs and minimizes the use of unobservable inputs by requiring that the most observable inputs be used when available. Observable inputs are inputs that market participants would use in pricing the asset or liability based on market data obtained from sources independent of the Company. Unobservable inputs are inputs that are derived from assumptions based on management’s estimate of assumptions that market participants would use in pricing the asset or liability based on the best information available under the circumstances. The hierarchy is broken down into the following three levels, based on the reliability of inputs: Level 1: Unadjusted quoted prices in active markets for identical assets or liabilities that are accessible at the measurement date. Level 2: Significant other observable inputs other than Level 1 prices, such as quoted prices for similar assets or liabilities, quoted prices in markets that are not active or other inputs that are observable or can be corroborated by observable market data. Level 3: Significant unobservable inputs for assets or liabilities that are derived from assumptions based on management’s estimate of assumptions that market participants would use in pricing the assets or liabilities. The Company records the fair values of financial assets and liabilities on a recurring and non-recurring basis using the following methods and assumptions: Available-for-sale securities—Available-for-sale securities are recorded at fair value on a recurring basis. Fair values for securities are based on quoted market prices, where available. If quoted prices are not available, fair values are based on quoted market prices of similar instruments or are determined by matrix pricing, which is a mathematical technique widely used in the industry to value debt securities without relying exclusively on quoted prices for the specific securities but rather by relying on the pricing relationship or correlation among other benchmark quoted securities. Available-for-sale securities valued using quoted market prices of similar instruments or that are valued using matrix pricing are classified as Level 2. When significant inputs to the valuation are unobservable, the available-for-sale securities are classified within Level 3 of the fair value hierarchy. Where no active market exists for a security or other benchmark securities, fair value is estimated by the Company with reference to discount margins for other high risk securities. Loans held for sale—Loans held for sale are carried at fair value. Fair value is used is determined using current secondary market prices for loans with similar characteristics, that is, using Level 2 inputs. Derivatives—The fair value of the interest rate swaps are based upon fair values provided from entities that engage in interest rate swap activity and is based upon projected future cash flows and interest rates. Fair value of commitments is based on fees currently charged to enter into similar agreements, and for fixed-rate commitments, the difference between current levels of interest rates and the committed rates is also considered. These financial instruments are classified as Level 2. Foreclosed real estate—Foreclosed real estate (“REO”) is comprised of commercial and residential real estate obtained in partial or total satisfaction of loan obligations. REO acquired in settlement of indebtedness is recorded at the lower of the carrying amount of the loan or the fair value of the real estate less costs to sell. Fair value is determined on a nonrecurring basis based on appraisals by qualified licensed appraisers and is adjusted for management’s estimates of costs to sell and holding period discounts. The valuations are classified as Level 3. Mortgage servicing rights—Servicing rights are carried at fair value. Fair value is determined using an income approach with various assumptions including expected cash flows, market discount rates, prepayment speeds, servicing costs, and other factors. Mortgage servicing rights are disclosed as Level 3. Impaired loans—Loans considered impaired under FASB ASC 310, Receivables, are loans for which, based on current information and events, it is probable that the creditor will be unable to collect all amounts due according to the contractual terms of the loan agreement. Fair value adjustments for impaired loans are recorded on a non-recurring basis as either partial write downs based on observable market prices or current appraisal of the collateral. Impaired loans are classified as Level 3. The following methods were used to estimate the fair value of the Company’s financial instruments which were not previously presented: Cash and cash equivalents—Cash and cash equivalents consist of cash and due from banks with other financial institutions and federal funds sold. The carrying amount reported in the consolidated balance sheets approximates the fair value based upon the short-term nature of these assets. Also included are interest-bearing deposits in financial institutions. Interest bearing deposits in financial institutions consist of interest bearing accounts at the Federal Reserve Bank and Federal Home Loan Bank. The carrying value reported in the consolidated balance sheets approximates the fair value based upon the short-term nature of the assets. Federal Home Loan Bank stock—The carrying value of Federal Home Loan Bank stock reported in the consolidated balance sheets approximates the fair value as the stock is redeemable at the carrying value. Loans—For variable rate loans that re-price frequently and with no significant change in credit risk, fair values are based upon carrying values. Fixed rate loan fair values are estimated using a discounted cash flow analysis based upon interest rates currently being offered for loans with similar terms to borrowers of similar credit quality. Deposits—The fair value disclosed for demand deposits (both interest bearing and noninterest bearing) and savings deposits are equal to the amount payable on demand as of the reporting date. The fair value of the time deposits is estimated using a discounted cash flow method based upon current rates for similar types of accounts. Short term borrowings—The fair value of the lines of credit which represent federal funds purchased approximate the carrying value of the amounts reported on the balance sheet due to the short-term nature of these liabilities. Securities sold under agreement to repurchase—The fair value of the securities sold under agreement to repurchase approximate the carrying value of the amounts reported on the balance sheet due to the short-term nature of these liabilities. Long-term debt—The fair value of long-term debt is determined using discounted cash flows using current rates. Accrued interest payable and receivable – The carrying amounts of accrued interest approximate fair value. The estimated fair values of the Company’s financial instruments are as follows: Fair Value March 31, 2017 Carrying amount Level 1 Level 2 Level 3 Total Financial assets: Cash and cash equivalents $ 129,552 $ 129,552 $ — $ — $ 129,552 Available-for-sale securities 567,886 — 563,337 4,549 567,886 Federal Home Loan Bank Stock 7,743 — — 7,743 7,743 Loans, net 1,878,097 — 1,876,703 209 1,876,912 Loans held for sale 365,173 — 365,173 — 365,173 Interest receivable 7,247 — 7,247 — 7,247 Mortgage servicing rights 47,593 — — 47,593 47,593 Derivatives 10,585 — 10,585 — 10,585 Financial liabilities: Deposits: Without stated maturities $ 2,311,666 $ 2,311,666 $ — $ — $ 2,311,666 With stated maturities 389,533 — 386,568 — 386,568 Securities sold under agreement to repurchase 18,130 18,130 — — 18,130 Interest payable 928 522 406 — 928 Long-term debt 44,552 — 43,661 — 43,661 Derivatives 4,660 — 4,660 — 4,660 Fair Value December 31, 2016 Carrying amount Level 1 Level 2 Level 3 Total Financial assets: Cash and cash equivalents $ 136,327 $ 136,327 $ — $ — $ 136,327 Available-for-sale securities 582,183 — 577,634 4,549 582,183 Federal Home Loan Bank Stock 7,743 — — 7,743 7,743 Loans, net 1,827,037 — 1,822,054 1,281 1,823,335 Loans held for sale 507,442 — 507,442 — 507,442 Interest receivable 7,241 — 7,241 — 7,241 Mortgage servicing rights, net 32,070 — — 33,081 33,081 Derivatives 19,745 — 19,745 — 19,745 Financial liabilities: Deposits: Without stated maturities $ 2,280,531 $ 2,280,531 $ — $ — $ 2,280,531 With stated maturities 391,031 — 390,484 — 390,484 Securities sold under agreement to repurchase 21,561 21,561 — — 21,561 Short term borrowings 150,000 150,000 — — 150,000 Interest payable 620 237 383 — 620 Long-term debt 44,892 — 43,994 — 43,994 Derivatives 586 — 586 — 586 The balances and levels of the assets measured at fair value on a recurring basis at March 31, 2017 are presented in the following tables: At March 31, 2017 Quoted prices in active markets for identical assets (liabilities) (level 1) Significant other observable inputs (level 2) Significant unobservable inputs (level 3) Total Recurring valuations: Financial assets: Available-for-sale securities: U.S. government agency securities $ — $ 987 $ — $ 987 Mortgage-backed securities — 425,943 — 425,943 Municipals, tax-exempt — 120,560 — 120,560 Treasury securities — 11,773 — 11,773 Equity securities — 4,074 4,549 8,623 Total $ — $ 563,337 $ 4,549 $ 567,886 Loans held for sale — 365,173 — 365,173 Mortgage servicing rights — — 47,593 47,593 Derivatives — 10,585 — 10,585 Financial Liabilities: Derivatives $ — $ 4,660 $ — $ 4,660 The balances and levels of the assets measured at fair value on a non-recurring basis at March 31, 2017 are presented in the following tables: At March 31, 2017 Quoted prices in active markets for identical assets (liabilities) (level 1) Significant other observable inputs (level 2) Significant unobservable inputs (level 3) Total Non-recurring valuations: Financial assets: Foreclosed assets $ — $ — $ 942 $ 942 Impaired loans: Commercial and industrial — — 55 55 Commercial real estate: Non-owner occupied — — 154 154 Total $ — $ — $ 209 $ 209 The balances and levels of the assets measured at fair value on a recurring basis at December 31, 2016 are presented in the following tables: At December 31, 2016 Quoted prices in active markets for identical (liabilities) (level 1) Significant other observable inputs (level 2) Significant unobservable inputs (level 3) Total Recurring valuations: Financial assets: Available-for-sale securities: U.S. government agency securities $ — $ 985 $ — $ 985 Mortgage-backed securities — 443,908 — 443,908 Municipals, tax-exempt — 116,923 — 116,923 Treasury securities — 11,757 — 11,757 Equity securities — 4,061 4,549 8,610 Total $ — $ 577,634 $ 4,549 $ 582,183 Loans held for sale — 507,442 — 507,442 Derivatives — 19,745 — 19,745 Financial Liabilities: Derivatives $ — $ 586 $ — $ 586 The balances and levels of the assets measured at fair value on a non-recurring basis at December 31, 2016 are presented in the following tables: At December 31, 2016 Quoted prices in active markets for identical (liabilities) (level 1) Significant other observable inputs (level 2) Significant unobservable inputs (level 3) Total Non-recurring valuations: Financial assets: Foreclosed assets $ — $ — $ 2,315 $ 2,315 Mortgage servicing rights — — 32,070 32,070 Impaired Loans: Commercial and industrial — — 542 542 Commercial real estate: Owner occupied — — 635 635 Non-owner occupied — — — — Construction — — — — Residential real estate: 1-4 family mortgage — — 103 103 Multifamily — — — — Consumer and other — — 1 1 Total $ — $ — $ 1,281 $ 1,281 There were no transfers between Level 1, 2 or 3 during the periods presented. There was no change in fair value on available-for-sale securities measured at fair value on a recurring basis using significant unobservable inputs, or Level 3 inputs, during either of the three months ended March 31, 2017 and 2016. The fair value of certain of the Company’s equity are determined from information derived from external parties that calculate discounted cash flows using swap and LIBOR curves plus spreads that adjust for loss severities, volatility, credit risk and optionality. When available, broker quotes are used to validate the model. Industry research reports as well as assumptions about specific-issuer defaults and deferrals are reviewed and incorporated into the calculations. There is no established market for the Company’s equity securities, and as such, the Company has estimated that historical costs approximates market value. The following table presents information as of March 31, 2017 about significant unobservable inputs (Level 3) used in the valuation of assets measured at fair value on a nonrecurring basis: Financial instrument Fair Valuation technique Significant Unobservable inputs Range of inputs Impaired loans $ 209 Valuation of collateral Discount for comparable sales 0%-30% Foreclosed assets $ 942 Appraised value of property less costs to sell Discount for costs to sell 0%-10% The following table presents information as of December 31, 2016 about significant unobservable inputs (Level 3) used in the valuation of assets measured at fair value on a nonrecurring basis: Financial instrument Fair Valuation technique Significant Unobservable inputs Range of inputs Impaired loans $ 1,281 Valuation of collateral Discount for comparable sales 0%-30% Foreclosed assets $ 2,315 Appraised value of property less costs to sell Discount for costs to sell 0%-10% Mortgage servicing rights, net $ 33,081 Discounted cash flows See Note 6 See Note 6 Appraisals for both collateral-dependent impaired loans and real estate owned are performed by certified general appraisers (for commercial properties) or certified residential appraisers (for residential properties) whose qualifications and licenses have been reviewed and verified by the Company. Once received, a member of the lending administrative department reviews the assumptions and approaches utilized in the appraisal as well as the overall resulting fair value in comparison with independent data sources such as recent market data or industry wide statistics. Fair value option The Company elected to measure all loans originated for sale at fair value under the fair value option as permitted under ASC 825. Electing to measure these assets at fair value reduces certain timing differences and better matches the changes in fair value of the loans with changes in the fair value of derivative instruments used to economically hedge them. Net gains of $7,606 and $1,579 resulting from fair value changes of the mortgage loans were recorded in income during the three months ended March 31, 2017 and 2016, respectively. The amount does not reflect changes in fair values of related derivative instruments used to hedge exposure to market-related risks associated with these mortgage loans. The change in fair value of both loans held for sale and the related derivative instruments are recorded in Mortgage Banking Income in the Consolidated Statements of Income. The Company’s valuation of loans held for sale incorporates an assumption for credit risk; however, given the short-term period that the Company holds these loans, valuation adjustments attributable to instrument-specific credit risk is nominal. Interest income on loans held for sale measured at fair value is accrued as it is earned based on contractual rates and is reflected in loan interest income in the Consolidated Statements of Income. The following table summarizes the differences between the fair value and the principal balance for loans held for sale measured at fair value as of March 31, 2017 and December 31, 2016: March 31, 2017 Aggregate fair value Aggregate Unpaid Principal Balance Difference Mortgage loans held for sale measured at fair value $ 365,173 $ 351,628 $ 13,545 Past due loans of 90 days or more — — — Nonaccrual loans — — — December 31, 2016 Mortgage loans held for sale measured at fair value $ 507,442 $ 501,503 $ 5,939 Past due loans of 90 days or more — — — Nonaccrual loans — — —

Segment Reporting

Segment Reporting	3 Months Ended
	Mar. 31, 2017
Segment Reporting [Abstract]
Segment Reporting	Note (11)—Segment reporting: The Company and the Bank are engaged in the business of banking and provide a full range of financial services. The Company determines reportable segments based on the significance of the segment’s operating results to the overall Company, the products and services offered, customer characteristics, processes and service delivery of the segments and the regular financial performance review and allocation of resources by the Chief Executive Officer (“CEO”), the Company’s chief operating decision maker. The Company has identified two distinct reportable segments—Banking and Mortgage. The Company’s primary segment is Banking, which provides a full range of deposit and lending products and services to corporate, commercial and consumer customers. The Company offers full-service conforming residential mortgage products, including conforming residential loans and services through the Mortgage segment utilizing mortgage offices outside of the geographic footprint of the Banking operations as well as internet delivery channels. Additionally, the Mortgage Segment includes the servicing of residential mortgage loans and the packaging and securitization of loans to governmental agencies. The residential mortgage products and services originated in our Banking footprint and related revenues and expenses are included in our Banking segment. The Company’s mortgage division represents a distinct reportable segment which differs from the Company’s primary business of commercial and retail banking. The financial performance of the Mortgage segment is assessed based on results of operations reflecting direct revenues and expenses and allocated expenses. This approach gives management a better indication of the operating performance of the segment. When assessing the Banking segment’s financial performance the CEO utilizes reports with indirect revenues and expenses including but not limited to the investment portfolio, electronic delivery channels and areas that primarily support the banking segment operations. Therefore these are included in the results of the Banking segment. Other indirect revenue and expenses related to general administrative areas are also included in the internal financial results reports of the Banking segment utilized by the CEO for analysis and are thus included for Banking segment reporting. The Mortgage segment utilizes funding sources from the Banking segment in order to fund mortgage loans that are ultimately sold on the secondary market. The Mortgage segment uses the proceeds from loan sales to repay obligations due to the Banking segment. During 2016, the Company realigned its segment reporting structure to reclassify mortgage banking income and related expenses associated with retail mortgage originations within our Banking geographic footprint from the Mortgage segment to the Banking segment. This change was made to capture all of the product and service offerings for our Banking customer base within our banking geographic footprint into the Banking segment while capturing all of the mortgage banking activities outside of the banking footprint into the Mortgage segment to allow our CEO to better determine resource allocations and operating performance for each segment. As such, the tables below have been revised to reflect the reclassification for all periods presented. The following tables provides segment financial information for the three months ended March 31, 2017 and 2016 follows: Three Months Ended March 31, 2017 Banking Mortgage Consolidated Net interest income $ 29,856 $ 395 $ 30,251 Provision for loan loss (257 ) — (257 ) Mortgage banking income 5,666 19,414 25,080 Other noninterest income 6,007 — 6,007 Depreciation 864 138 1,002 Amortization of intangibles 392 — 392 Amortization and impairment of mortgage servicing rights — — — Loss on sale of mortgage servicing rights — — — Other noninterest mortgage banking expense 4,836 17,532 22,368 Other noninterest expense 22,655 — 22,655 Income before income taxes 13,039 2,139 15,178 Income tax expense 5,425 Net income 9,753 Total assets $ 2,705,118 $ 461,341 $ 3,166,459 Goodwill 46,767 100 46,867 Three Months Ended March 31, 2016 Banking Mortgage Consolidated Net interest income $ 26,014 $ (71 ) $ 25,943 Provision for loan loss (9 ) — (9 ) Mortgage banking income 6,147 18,356 24,503 Other noninterest income 6,532 — 6,532 Depreciation 901 114 1,015 Amortization of intangibles 552 — 552 Amortization and impairment of mortgage servicing rights — 2,914 2,914 Loss on sale of mortgage servicing rights — — — Other noninterest mortgage banking expense 3,858 12,712 16,570 Other noninterest expense 20,296 — 20,296 Income before income taxes 13,095 2,545 15,640 Income tax expense 1,041 Net income 14,599 Total assets $ 2,532,060 $ 323,503 $ 2,855,563 Goodwill 46,767 100 46,867 Our Banking segment provides our Mortgage segment with a warehouse line of credit that is used to fund mortgage loans held for sale. The warehouse line of credit had a prime interest rate of 4.00% and 3.50% as of March 31, 2017 and 2016, respectively. The amount of interest paid by our Mortgage segment to our Banking segment under this warehouse line of credit is recorded as interest income to our Banking segment and as interest expense to our Mortgage segment, both of which are included in the calculation of net interest income for each segment. The amount of interest paid by our Mortgage segment to our Banking segment under this warehouse line of credit was $3,551 and $2,259 for the three months ended March 31, 2017 and 2016, respectively.

Minimum Capital Requirements

Minimum Capital Requirements	3 Months Ended
	Mar. 31, 2017
Banking And Thrift [Abstract]
Minimum capital requirements	Note (12)—Minimum capital requirements: Banks and bank holding companies are subject to regulatory capital requirements administered by federal banking agencies. Capital adequacy guidelines and, additionally for banks, prompt corrective action regulations involve quantitative measures of assets, liabilities, and certain off-balance sheet items calculated under regulatory accounting practices. Capital amounts and classifications are also subject to qualitative judgments by regulators. Failure to meet capital requirements can initiate regulatory action. For March 31, 2017 and December 31, 2016 Interim Final Basel III rules require the Bank to maintain minimum amounts and ratios of common equity Tier I capital to risk-weighted assets. Additionally under Basel III rules, the decision was made to opt-out of including accumulated other comprehensive income in regulatory capital. As of March 31, 2017 and December 31, 2016, the Bank and Company met all capital adequacy requirements to which it is subject. Also, as of March 31, 2017, the most recent notification from the FDIC, the Bank was well capitalized under the regulatory framework for prompt corrective action. There are no conditions or events since that notification that management believes have changed the Bank’s category. The table below includes new regulatory capital ratio requirements that became effective on January 1, 2015. Beginning in 2016, an additional conservation buffer was added to the minimum requirements for capital adequacy purposes, subject to a three year phase-in period. The capital conservative buffer will be fully phased in January 1, 2019 at 2.5 percent. Actual and required capital amounts and ratios are presented below at period-end. Actual For capital adequacy purposes Minimum Capital adequacy with capital buffer To be well capitalized under prompt corrective action provisions Amount Ratio Amount Ratio Amount Ratio Amount Ratio March 31, 2017 Total Capital (to risk-weighted assets) FB Financial Corporation $ 350,667 13.76 % $ 203,876 8.0 % $ 235,732 9.25 % N/A N/A FirstBank 316,013 12.42 % 203,551 8.0 % 235,356 9.25 % $ 254,439 10.0 % Tier 1 Capital (to risk-weighted assets) FB Financial Corporation $ 327,769 12.87 % $ 152,806 6.0 % $ 184,641 7.25 % N/A N/A FirstBank 293,115 11.52 % 152,664 6.0 % 184,469 7.25 % $ 152,664 6.0 % Tier 1 Capital (to average assets) FB Financial Corporation $ 327,769 10.46 % $ 125,342 4.0 % N/A N/A N/A N/A FirstBank 293,115 9.36 % 125,263 4.0 % N/A N/A $ 156,579 5.0 % Common Equity Tier 1 Capital (to risk-weighted assets) FB Financial Corporation $ 297,769 11.69 % $ 114,625 4.5 % $ 146,465 5.75 % N/A N/A FirstBank 293,115 11.52 % 114,498 4.5 % 146,303 5.75 % $ 165,386 6.5 % Actual For capital adequacy purposes Minimum Capital adequacy with capital buffer To be well capitalized under prompt corrective action provisions Amount Ratio Amount Ratio Amount Ratio Amount Ratio December 31, 2016 Total Capital (to risk-weighted assets) FB Financial Corporation $ 338,893 13.03 % $ 208,069 8.0 % $ 224,325 8.63 % N/A N/A FirstBank 304,018 11.72 % 207,521 8.0 % 223,733 8.63 % $ 259,401 10.0 % Tier 1 Capital (to risk-weighted assets) FB Financial Corporation $ 317,146 12.19 % $ 156,101 6.0 % $ 172,362 6.63 % N/A N/A FirstBank 282,271 10.88 % 155,664 6.0 % 171,879 6.63 % $ 155,664 6.0 % Tier 1 Capital (to average assets) FB Financial Corporation $ 317,146 10.05 % $ 126,227 4.0 % N/A N/A N/A N/A FirstBank 282,271 8.95 % 126,155 4.0 % N/A N/A $ 157,693 5.0 % Common Equity Tier 1 Capital (to risk-weighted assets) FB Financial Corporation $ 287,146 11.04 % $ 117,043 4.5 % $ 133,299 5.13 % N/A N/A FirstBank 282,271 10.88 % 116,748 4.5 % 132,963 5.13 % $ 168,636 6.5 %

Stock-Based Compensation

Stock-Based Compensation	3 Months Ended
	Mar. 31, 2017
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Stock-Based Compensation	Note (13) — The Company granted shares of common stock and restricted stock units as a part of its initial public offering for the benefit of employees and executive officers. Restricted stock unit grants are subject to time-based vesting. The total number of restricted stock units granted represents the maximum number of restricted stock units eligible to vest based upon the service conditions set forth in the grant agreements. Following the initial public offering, participants in the EBI Plans were given the option to elect conversion of their outstanding cash-settled EBI Units to stock-settled EBI Units. The following table summarizes information about vested and unvested restricted stock units outstanding at March 31, 2017: Restricted Stock Units Outstanding Weighted Average Grant Date Fair Value Balance, December 31, 2016 1,200,848 $ 19.00 Grants 73,801 33.48 Released and distributed (vested) (70,687 ) 19.00 Forfeited/expired (544 ) 19.00 Balance, March 31, 2017 1,203,418 $ 19.15 The total fair value of restricted stock units vested and released was $1,343 for the three months ended March 31, 2017. The compensation cost related to restricted stock units (included in salaries and employee benefits) was $1,352 for the three months ended March 31, 2017. As of March 31, 2017, there was $16,842 of total unrecognized compensation cost related to nonvested restricted stock units which is expected to be recognized over a weighted-average period of 3.70 At March 31, 2017 and December 31, 2016, there were 67,470 and 180,447 units valued at $2,384 and $4,683, respectively, remaining in the equity based incentive plans for employees who elected cash settlement of EBI units. Employee Stock Purchase Plan: In 2016, the Company adopted an employee stock purchase plan (“ESPP”) under which employees, through payroll deductions, are able to purchase shares of Company common stock. The purchase price is 85%, with respect to the first offering period, or 95%, with respect to the current offering period, of the lower of the price on the first or last day of the offering period. The maximum number of shares issuable during any offering period is 200,000 shares and a participant may not purchase more than 725 shares during any offering period (and, in any event, no more than $25,000 worth of common stock in any calendar year). There were not any shares issued under the ESPP during the three months ended March 31, 2017. As of March 31, 2017 and December 31, 2016, there were 2,479,623 shares available for issuance under the ESPP.

Related party transactions

Related party transactions	3 Months Ended
	Mar. 31, 2017
Related Party Transactions [Abstract]
Related party transactions	Note (14)—Related party transactions: (A) Loans: The Bank has made and expects to continue to make loans to the directors, certain management and executive officers of the Company and their affiliates in the ordinary course of business. In management’s opinion, these transactions with directors and executive officers complied with federal banking Regulation O and were made on substantially the same terms as those prevailing at the time for comparable transactions with other unaffiliated persons and did not involve more than the normal risk. An analysis of loans to executive officers, certain management, and directors of the Bank and their affiliates follows: Loans outstanding at January 1, 2017 $ 27,370 New loans and advances 2,065 Repayments (1,975 ) Loans outstanding at March 31, 2017 $ 27,460 Unfunded commitments to certain executive officers and directors and their associates totaled $7,099 and $6,838 at March 31, 2017 and December 31, 2016, respectively. (B) Deposits: The Bank held deposits from related parties totaling $155,390 and $150,373 as of March 31, 2017 and December 31, 2016, respectively. (C) Leases: The Bank leases various office spaces from entities related to the majority shareholder and his son, who is also a Director of the Company, under varying terms. The Company had $153 and $174 in unamortized leasehold improvements related to these leases at March 31, 2017 and December 31, 2016, respectively. These improvements are being amortized over a term not to exceed the length of the lease. Lease expense for these properties totaled $126 and $134 for the three months ended March 31, 2017 and 2016, respectively. (D) Subordinated debt: On February 12, 1996, the Company borrowed $775 from the shareholder through a term subordinated note. On August 26, 1999, the Company borrowed $3,300 from the shareholder through a term subordinated note. On June 30, 2006, the Company borrowed $6,000 from the shareholder through a term subordinated note. The total of $10,075 was repaid with cash proceeds from the sale of common stock in the initial public offering, as discussed in Note 1. The Company paid interest payments related to these subordinated debentures to the shareholder amounting to approximately $68 for the three months ended March 31, 2016. (E) Investment securities transactions: The Company holds an investment in a fund that was issued by an entity owned by one of its directors. The balance in the investment was $1,145 and $1,145 as of March 31, 2017 and December 31, 2016, respectively. (F) Aviation time sharing agreement: Effective May 24, 2016, the Company entered an aviation time sharing agreement with an entity owned by the majority shareholder and his son, who is also a Director of the Company. This replaces the previous agreement dated December 21, 2012. During the three months ended March 31, 2017 and 2016, the Company made payments of $25 and $18, respectively, under these agreements.

Basis of Presentation (Tables)

Basis of Presentation (Tables)	3 Months Ended
	Mar. 31, 2017
Accounting Policies [Abstract]
Summary of Basic and Diluted Earnings Per Common Share	The following is a summary of the basic and diluted earnings per common share calculation for each of the periods presented: Three Months Ended March 31, 2017 2016 Basic earnings per share calculation: Net income $ 9,753 $ 14,599 Weighted-average basic shares outstanding 24,138,437 17,180,000 Basic earnings per share $ 0.40 $ 0.85 Diluted earnings per share: Net income $ 9,753 $ 14,599 Weighted-average basic shares outstanding 24,138,437 17,180,000 Average diluted common shares outstanding 472,554 — Weighted-average diluted shares outstanding 24,610,991 17,180,000 Diluted earnings per share $ 0.40 $ 0.85 Pro forma earnings per share: Pro forma net income $ 9,753 $ 9,803 Weighted-average basic shares outstanding 24,138,437 17,180,000 Pro forma basic earnings per share $ 0.40 $ 0.57 Pro forma diluted earnings per share: Pro forma net income $ 9,753 $ 9,803 Weighted-average diluted shares outstanding 24,610,991 17,180,000 Pro forma diluted earnings per share $ 0.40 $ 0.57

Investment securities (Tables)

Investment securities (Tables)	3 Months Ended
	Mar. 31, 2017
Investments Debt And Equity Securities [Abstract]
Summary of Amortized Cost of Securities and Fair Values	The amortized cost of securities and their fair values at March 31, 2017 and December 31, 2016 are shown below: March 31, 2017 Amortized cost Gross unrealized gains Gross unrealized losses Fair Value Securities Available-for-Sale Debt securities U.S. government agency securities $ 999 $ — $ (12 ) $ 987 Mortgage-backed securities - residential 432,499 824 (7,380 ) 425,943 Municipals, tax exempt 119,182 3,149 (1,771 ) 120,560 Treasury securities 11,817 — (44 ) 11,773 Total debt securities 564,497 3,973 (9,207 ) 559,263 Equity securities 8,762 1 (140 ) 8,623 Total securities available-for-sale $ 573,259 $ 3,974 $ (9,347 ) $ 567,886 December 31, 2016 Amortized cost Gross unrealized gains Gross unrealized losses Fair Value Securities Available-for-Sale Debt securities U.S. government agency securities $ 998 $ — $ (13 ) $ 985 Mortgage-backed securities - residential 450,874 939 (7,905 ) 443,908 Municipals, tax exempt 116,034 3,003 (2,114 ) 116,923 Treasury securities 11,809 — (52 ) 11,757 Total debt securities 579,715 3,942 (10,084 ) 573,573 Equity securities 8,744 1 (135 ) 8,610 Total securities available-for-sale $ 588,459 $ 3,943 $ (10,219 ) $ 582,183
Schedule of Amortized Cost and Fair Value of Debt Securities by Contractual Maturity	Therefore, mortgage-backed securities are not included in the maturity categories in the following maturity summary. March 31, 2017 December 31, 2016 Available-for-sale Available-for-sale Amortized cost Fair value Amortized cost Fair value Due in one year or less $ 11,332 $ 11,429 $ 9,290 $ 9,352 Due in one to five 28,982 30,069 25,520 26,340 Due in five to ten years 27,447 28,486 31,122 32,248 Due in over ten years 64,237 63,336 62,909 61,725 131,998 133,320 128,841 129,665 Mortgage-backed securities - residential 432,499 425,943 450,874 443,908 $ 564,497 $ 559,263 $ 579,715 $ 573,573
Summary of Sales of Available-for-Sale Securities	Sales of available-for-sale securities were as follows: Three Months Ended March 31, 2017 2016 Proceeds from sales $ — $ 102,263 Gross realized gains — 1,400 Gross realized losses — —
Schedule of Gross Unrealized Losses	The following tables show gross unrealized losses at March 31, 2017 and December 31, 2016, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position: March 31, 2017 Less than 12 months 12 months or more Total Fair Value Unrealized Loss Fair Value Unrealized Loss Fair Value Unrealized loss U.S. government agency securities $ 987 $ 12 $ — $ — $ 987 $ 12 Mortgage-backed securities - residential 376,680 6,730 18,307 650 394,987 7,380 Municipals, tax exempt 40,529 1,757 216 14 40,745 1,771 Treasury securities 11,773 44 — — 11,773 $ 44 Total debt securities 429,969 8,543 18,523 664 448,492 9,207 Equity securities — — 3,005 140 3,005 140 $ 429,969 $ 8,543 $ 21,528 $ 804 $ 451,497 $ 9,347 December 31, 2016 Less than 12 months 12 months or more Total Fair Value Unrealized Loss Fair Value Unrealized Loss Fair Value Unrealized loss U.S. government agency securities $ 985 $ 13 $ — $ — $ 985 $ 13 Mortgage-backed securities - residential 390,595 7,230 19,073 675 409,668 7,905 Municipals, tax exempt 43,132 2,114 — — 43,132 2,114 Treasury securities 10,256 52 — — 10,256 52 Total debt securities 444,968 9,409 19,073 675 464,041 10,084 Equity securities — — 3,126 135 3,126 135 $ 444,968 $ 9,409 $ 22,199 $ 810 $ 467,167 $ 10,219

Loans and Allowance for Loan 26

Loans and Allowance for Loan Losses (Tables)	3 Months Ended
	Mar. 31, 2017
Receivables [Abstract]
Loans Outstanding by Major Lending Classification	Loans outstanding at March 31, 2017 and December 31, 2016, by major lending classification are as follows: March 31, December 31, 2017 2016 Commercial and industrial $ 399,333 $ 386,233 Construction 267,998 245,905 Residential real estate: 1-to-4 family mortgage 302,166 294,924 Residential line of credit 177,928 177,190 Multi-family mortgage 45,244 44,977 Commercial real estate: Owner occupied 359,120 357,346 Non-owner occupied 273,716 267,902 Consumer and other 75,490 74,307 Gross loans 1,900,995 1,848,784 Less: Allowance for loan losses (22,898 ) (21,747 ) Net loans $ 1,878,097 $ 1,827,037
Allowance for Loan Losses by Portfolio Segment and Related Investment in Loans Net of Unearned Interest	The following provides the allowance for loan losses by portfolio segment and the related investment in loans net of unearned interest for the three months ended March 31, 2017 and 2016: Commercial and industrial Construction 1-to-4 family residential mortgage Residential line of credit Multi- family residential mortgage Commercial real estate owner occupied Commercial real estate non-owner occupied Consumer and other Total Three Months Ended March 31, 2017 Beginning balance - December 31, 2016 $ 5,309 $ 4,940 $ 3,197 $ 1,613 $ 504 $ 3,302 $ 2,019 $ 863 $ 21,747 Provision for loan losses 179 635 (239 ) (155 ) 4 81 (998 ) 236 (257 ) Recoveries of loans previously charged-off 83 29 26 56 — 4 1,639 13 1,850 Loans charged off (169 ) (6 ) (88 ) — — — — (179 ) (442 ) Ending balance - March 31, 2017 $ 5,402 $ 5,598 $ 2,896 $ 1,514 $ 508 $ 3,387 $ 2,660 $ 933 $ 22,898 Commercial and industrial Construction 1-to-4 family residential mortgage Residential line of credit Multi- family residential mortgage Commercial real estate owner occupied Commercial real estate non-owner occupied Consumer and other Total Three Months Ended March 31, 2016 Beginning balance - December 31, 2015 $ 5,135 $ 5,143 $ 4,176 $ 2,201 $ 311 $ 3,682 $ 2,622 $ 1,190 $ 24,460 Provision for loan losses 99 (666 ) 42 (163 ) 279 325 113 (38 ) (9 ) Recoveries of loans previously charged-off 10 41 62 37 — 6 4 72 232 Loans charged off (2 ) — — — — — — (250 ) (252 ) Ending balance - March 31, 2016 $ 5,242 $ 4,518 $ 4,280 $ 2,075 $ 590 $ 4,013 $ 2,739 $ 974 $ 24,431
Allocation of Allowance for Loan Losses by Loan Category Broken Out Between Loans Individually and Collectively Evaluated for Impairment	The following table provides the allocation of the allowance for loan losses by loan category broken out between loans individually evaluated for impairment and loans collectively evaluated for impairment as of March 31, 2017 and December 31, 2016: March 31, 2017 Commercial and industrial Construction 1-to-4 family residential mortgage Residential line of credit Multi- family residential mortgage Commercial real estate owner occupied Commercial real estate non-owner occupied Consumer and other Total Amount of allowance allocated to: Individually evaluated for impairment $ 34 $ — $ 22 $ — $ — $ 102 $ 85 $ — $ 243 Collectively evaluated for impairment 5,368 5,598 2,874 1,514 508 3,285 2,575 933 22,655 Acquired with deteriorated credit quality — — — — — — — — — Ending balance - March 31, 2017 $ 5,402 $ 5,598 $ 2,896 $ 1,514 $ 508 $ 3,387 $ 2,660 $ 933 $ 22,898 December 31, 2016 Commercial and industrial Construction 1-to-4 family residential mortgage Residential line of credit Multi- family residential mortgage Commercial real estate owner occupied Commercial real estate non-owner occupied Consumer and other Total Year-end amount of allowance allocated to: Individually evaluated for impairment $ 135 $ — $ 23 $ — $ — $ 113 $ 242 $ — $ 513 Collectively evaluated for impairment 5,174 4,940 3,174 1,613 504 3,189 1,777 863 21,234 Acquired with deteriorated credit quality — — — — — — — — — Ending balance - December 31, 2016 $ 5,309 $ 4,940 $ 3,197 $ 1,613 $ 504 $ 3,302 $ 2,019 $ 863 $ 21,747
Amount of Loans by Loan Category Broken Between Loans Individually and Collectively Evaluated for Impairment	The following table provides the amount of loans by loan category broken between loans individually evaluated for impairment and loans collectively evaluated for impairment as of March 31, 2017 and December 31, 2016: March 31, 2017 Commercial and industrial Construction 1-to-4 family residential mortgage Residential line of credit Multi- family residential mortgage Commercial real estate owner occupied Commercial real estate non-owner occupied Consumer and other Total Loans, net of unearned income Individually evaluated for impairment $ 1,272 $ 305 $ 2,216 $ — $ 1,014 $ 2,459 $ 2,128 $ 25 $ 9,419 Collectively evaluated for impairment 397,583 263,424 297,817 177,928 44,205 352,623 266,436 75,461 1,875,477 Acquired with deteriorated credit quality 478 4,269 2,133 — 25 4,038 5,152 4 16,099 Ending balance - March 31, 2017 $ 399,333 $ 267,998 $ 302,166 $ 177,928 $ 45,244 $ 359,120 $ 273,716 $ 75,490 $ 1,900,995 December 31, 2016 Commercial and industrial Construction 1-to-4 family residential mortgage Residential line of credit Multi- family residential mortgage Commercial real estate owner occupied Commercial real estate non-owner occupied Consumer and other Total Loans, net of unearned income Individually evaluated for impairment $ 1,476 $ 2,686 $ 2,471 $ 311 $ 1,027 $ 2,752 $ 2,201 $ 27 $ 12,951 Collectively evaluated for impairment 384,279 238,900 290,346 176,879 43,922 350,812 260,361 74,276 1,819,775 Acquired with deteriorated credit quality 478 4,319 2,107 — 28 3,782 5,340 4 16,058 Ending balance - December 31, 2016 $ 386,233 $ 245,905 $ 294,924 $ 177,190 $ 44,977 $ 357,346 $ 267,902 $ 74,307 $ 1,848,784
Credit Quality Indicators by Portfolio Class	The following table shows credit quality indicators by portfolio class at March 31, 2017 and December 31, 2016: March 31, 2017 Pass Watch Substandard Total Commercial and industrial $ 362,172 $ 34,722 $ 2,439 $ 399,333 Construction 260,791 2,341 4,866 267,998 Residential real estate: 1-to-4 family mortgage 285,819 6,894 9,453 302,166 Residential line of credit 173,491 2,016 2,421 177,928 Multi-family mortgage 44,058 147 1,039 45,244 Commercial real estate: Owner occupied 341,784 8,947 8,389 359,120 Non-owner occupied 258,887 6,283 8,546 273,716 Consumer and other 74,742 345 403 75,490 Total $ 1,801,744 $ 61,695 $ 37,556 $ 1,900,995 December 31, 2016 Pass Watch Substandard Total Commercial and industrial $ 351,046 $ 31,074 $ 4,113 $ 386,233 Construction 236,588 4,612 4,705 245,905 Residential real estate: 1-to-4 family mortgage 277,948 6,945 10,031 294,924 Residential line of credit 173,011 1,875 2,304 177,190 Multi-family mortgage 43,770 152 1,055 44,977 Commercial real estate: Owner occupied 338,698 10,459 8,189 357,346 Non-owner occupied 249,877 10,273 7,752 267,902 Consumer and other 73,454 417 436 74,307 Total $ 1,744,392 $ 65,807 $ 38,585 $ 1,848,784
Purchased Credit Impaired	Loans acquired in business combinations that exhibited at the date of acquisition evidence of deterioration of credit quality since origination such that it was probable that all contractually required payments would not be collected are considered to be purchased credit impaired and were as follows at March 31, 2017 and December 31, 2016: March 31, 2017 December 31, 2016 Commercial and industrial $ 478 $ 478 Construction 4,269 4,319 Residential real estate: 1-to-4 family mortgage 2,133 2,107 Residential line of credit — — Multi-family mortgage 25 28 Commercial real estate: Owner occupied 4,038 3,782 Non-owner occupied 5,152 5,340 Consumer and other 4 4 Total $ 16,099 $ 16,058
Current Value of Loans Impaired at the Time of Acquisition	The following table presents the current value of loans determined to be impaired at the time of acquisition at March 31, 2017 and December 31, 2016: March 31, 2017 December 31, 2016 Contractually-required principal and interest $ 21,997 $ 22,961 Nonaccretable difference (3,756 ) (4,459 ) Cash flows expected to be collected 18,241 18,502 Accretable yield (2,142 ) (2,444 ) Carrying value $ 16,099 $ 16,058
Changes in Accretable Yield and Nonaccretable Difference of Purchased Loans	Changes in accretable yield and nonaccretable difference of purchased loans were as follows: Accretable yield Nonaccretable Difference Purchased Credit Impaired Purchased Non-impaired Purchased Credit Impaired Purchased Non-impaired Total Balance at December 31, 2016 $ (2,444 ) $ (1,240 ) $ (4,459 ) $ — $ (8,143 ) Principal reductions/ pay-offs (698 ) — 698 — — Charge-offs — — 5 — 5 Recoveries (23 ) — — — (23 ) Accretion 1,023 137 — — 1,160 Balance at March 31, 2017 $ (2,142 ) $ (1,103 ) $ (3,756 ) $ — $ (7,001 ) Balance at December 31, 2015 $ (1,637 ) $ (2,008 ) $ (8,369 ) $ (209 ) $ (12,223 ) Principal reductions/ pay-offs (231 ) — 231 — — Charge-offs — — 440 — 440 Sale of credit card portfolio — — — 70 70 Accretion 408 418 — — 826 Balance at March 31, 2016 $ (1,460 ) $ (1,590 ) $ (7,698 ) $ (139 ) $ (10,887 )
Past Due Loans	Nonperforming loans include loans that are no longer accruing interest (non-accrual loans) and loans past due ninety or more days and still accruing interest. Nonperforming loans and impaired loans are defined differently. Some loans may be included in both categories, whereas other loans may only be included in one category. Loans acquired with deteriorated credit quality amounting to $16,099 and $16,058, respectively, at March 31, 2017 and December 31, 2016 have been excluded from the tables below in accordance with ASC-310-10-50, Receivables- Overall- Disclosure The following table provides the period-end amounts of loans that are past due thirty to eighty-nine days, past due ninety or more days and still accruing interest, loans not accruing interest and loans current on payments accruing interest by category at March 31, 2017 and December 31, 2016: March 31, 2017 30-89 days past due 90 days or more and accruing interest Non-accrual loans Loans current on payments and accruing interest Total Commercial and industrial $ 436 $ 123 $ 1,092 $ 397,204 $ 398,855 Construction 174 194 248 263,113 263,729 Residential real estate: 1-to-4 family mortgage 3,601 346 1,950 294,136 300,033 Residential line of credit 1,307 780 285 175,556 177,928 Multi-family mortgage — — — 45,219 45,219 Commercial real estate: Owner occupied 217 81 1,933 352,851 355,082 Non-owner occupied 81 — 2,170 266,313 268,564 Consumer and other 355 66 28 75,037 75,486 Total $ 6,171 $ 1,590 $ 7,706 $ 1,869,429 $ 1,884,896 December 31, 2016 30-89 days past due 90 days or more and accruing interest Non-accrual loans Loans current on payments and accruing interest Total Commercial and industrial $ 262 $ 127 $ 1,297 $ 384,069 $ 385,755 Construction 441 17 254 240,874 241,586 Residential real estate: 1-to-4 family mortgage 3,130 697 2,289 286,701 292,817 Residential line of credit 1,139 433 601 175,017 177,190 Multi-family mortgage — — — 44,949 44,949 Commercial real estate: Owner occupied 186 — 2,007 351,371 353,564 Non-owner occupied 158 — 2,251 260,153 262,562 Consumer and other 433 55 30 73,785 74,303 Total $ 5,749 $ 1,329 $ 8,729 $ 1,816,919 $ 1,832,726
Impaired Loans Recognized, Segregated by Class	Impaired loans recognized in conformity with ASC 310 at March 31, 2017 and December 31, 2016, segregated by class, were as follows: March 31, 2017 Recorded investment Unpaid principal Related allowance With a related allowance recorded: Commercial and industrial $ 727 $ 869 $ 34 Construction — — — Residential real estate: 1-to-4 family mortgage 99 365 22 Residential line of credit — — — Multi-family mortgage — — — Commercial real estate: Owner occupied 623 654 102 Non-owner occupied 521 1,048 85 Consumer and other — — — Total $ 1,970 $ 2,936 $ 243 With no related allowance recorded Commercial and industrial $ 545 $ 676 $ — Construction 305 317 — Residential real estate: 1-to-4 family mortgage 2,117 2,118 — Residential line of credit — — — Multi-family mortgage 1,014 1,014 — Commercial real estate: Owner occupied 1,836 2,943 — Non-owner occupied 1,607 2,339 — Consumer and other 25 26 — Total $ 7,449 $ 9,433 $ — Total impaired loans $ 9,419 $ 12,369 $ 243 December 31, 2016 Recorded investment Unpaid principal Related allowance With a related allowance recorded: Commercial and industrial $ 854 $ 854 $ 135 Construction — — — Residential real estate: 1-to-4 family mortgage 103 369 23 Residential line of credit — — — Multi-family mortgage — — — Commercial real estate: Owner occupied 635 654 113 Non-owner occupied 1,151 1,678 242 Consumer and other 1 1 — Total $ 2,744 $ 3,556 $ 513 With no related allowance recorded: Commercial and industrial $ 622 $ 746 $ — Construction 2,686 2,694 — Residential real estate: 1-to-4 family mortgage 2,368 2,370 — Residential line of credit 311 321 — Multi-family mortgage 1,027 1,027 — Commercial real estate: Owner occupied 2,117 3,205 — Non-owner occupied 1,050 1,781 — Consumer and other 26 26 — Total $ 10,207 $ 12,170 $ — Total impaired loans $ 12,951 $ 15,726 $ 513 Average recorded investment and interest income on a cash basis recognized during the three months ended March 31, 2017 and 2016 on impaired loans, segregated by class, were as follows: Three Months Ended March 31, 2017 Average recorded investment Interest income recognized (cash basis) With a related allowance recorded: Commercial and industrial $ 791 $ 5 Construction — — Residential real estate: 1-to-4 family mortgage 101 — Residential line of credit — — Multi-family mortgage — — Commercial real estate: Owner occupied 629 12 Non-owner occupied 836 — Consumer and other 1 — Total $ 2,357 $ 17 With no related allowance recorded Commercial and industrial 584 $ 9 Construction 1,496 5 Residential real estate: 1-to-4 family mortgage 2,243 17 Residential line of credit 156 — Multi-family mortgage 1,021 11 Commercial real estate: Owner occupied 1,977 38 Non-owner occupied 1,329 — Consumer and other 26 1 Total $ 8,828 $ 81 Total impaired loans $ 11,185 $ 98 Three Months Ended March 31, 2016 With a related allowance recorded: Commercial and industrial $ 1,051 $ 5 Construction 154 — Residential real estate: 1-to-4 family mortgage 2,187 16 Residential line of credit 163 — Multi-family mortgage — — Commercial real estate: Owner occupied 1,310 — Non-owner occupied 2,905 6 Consumer and other — — Total $ 7,770 $ 27 With no related allowance recorded Commercial and industrial $ 573 $ 1 Construction 2,685 31 Residential real estate: 1-to-4 family mortgage 1,749 42 Residential line of credit — — Multi-family mortgage 1,066 1 Commercial real estate: Owner occupied 1,095 30 Non-owner occupied 1,112 — Consumer and other — — Total $ 8,280 $ 105 Total impaired loans $ 16,050 $ 132 December 31, 2016 Recorded investment Unpaid principal Related allowance Average recorded investment Interest income recognized (cash basis) With a related allowance recorded: Commercial and industrial $ 854 $ 854 $ 135 $ 994 $ 17 Construction — — — 154 — Residential real estate: 1-to-4 family mortgage 103 369 23 1,750 1 Residential line of credit — — — — — Multi-family mortgage — — — 1,756 — Commercial real estate: Owner occupied 635 654 113 1,777 25 Non-owner occupied 1,151 1,678 242 1 — Consumer and other 1 1 — — — Total $ 2,744 $ 3,556 $ 513 $ 6,432 $ 43 With no related allowance recorded: Commercial and industrial $ 622 $ 746 $ — $ 494 $ 20 Construction 2,686 2,694 — 2,622 132 Residential real estate: 1-to-4 family mortgage 2,368 2,370 — 1,329 137 Residential line of credit 311 321 — 156 10 Multi-family mortgage 1,027 1,027 — 1,051 37 Commercial real estate: Owner occupied 2,117 3,205 — 1,120 119 Non-owner occupied 1,050 1,781 — 1,050 — Consumer and other 26 26 — 13 — Total $ 10,207 $ 12,170 $ — $ 7,835 $ 455 Total impaired loans $ 12,951 $ 15,726 $ 513 $ 14,267 $ 498
Financial Effect of TDRs	The following table presents the financial effect of TDRs recorded during the periods indicated: Three Months Ended March 31, 2017 Number of loans Pre-modification outstanding recorded investment Post-modification outstanding recorded investment Charge offs and specific reserves Commercial and industrial 1 $ 5 $ 5 $ — Commercial real estate: Owner occupied 1 377 377 — Non-owner occupied 2 711 711 — Total 4 $ 1,093 $ 1,093 $ — Three Months Ended March 31, 2016 Number of loans Pre-modification outstanding recorded investment Post-modification outstanding recorded investment Charge offs and specific reserves Residential real estate: 1-to-4 family mortgage 2 $ 443 $ 433 $ 39 Total 2 $ 443 $ 433 $ 39

Foreclosed Real Estate (Tables)

Foreclosed Real Estate (Tables)	3 Months Ended
	Mar. 31, 2017
Real Estate [Abstract]
Summary of Foreclosed Real Estate	The following table summarizes the foreclosed real estate for the three months ended March 31, 2017 and 2016: Three Months Ended March 31, 2017 2016 Balance at beginning of period $ 7,403 $ 11,641 Transfers from loans 888 530 Properties sold (2,228 ) (1,560 ) Gain on sale of foreclosed assets 871 57 Transferred to loans — (67 ) Write-downs and partial liquidations (123 ) (68 ) Balance at end of period $ 6,811 $ 10,533

Mortgage Servicing Rights (Tabl

Mortgage Servicing Rights (Tables)	3 Months Ended
	Mar. 31, 2017
Transfers And Servicing Of Financial Assets [Abstract]
Schedule of Changes in Mortgage Servicing Rights	Changes in the Company’s mortgage servicing rights were as follows for the three months ended March 31, 2017 and 2016: Three Months Ended March 31, 2017 2016 Carrying value at December 31 $ 32,070 $ 29,711 Fair value impact of change in accounting policy (See Note 1) 1,011 — Carrying value at beginning of period 33,081 29,711 Capitalization 15,013 9,130 Amortization — (1,457 ) Impairment — (773 ) Change in fair value: Due to pay-offs/pay-downs (265 ) — Due to change in valuation inputs or assumptions (236 ) — Carrying value at March 31 $ 47,593 $ 36,611
Schedule of Servicing Income and Expense Included in Mortgage Banking Income	The following table summarizes servicing income and expense included in mortgage banking income and other noninterest expense within the Mortgage Segment operating results, respectively, for the three months ended March 31, 2017 and 2016, respectively: Three Months Ended March 31, 2017 2016 Servicing income: Servicing income $ 2,748 $ 1,996 Change in fair value of mortgage servicing rights (501 ) — Gross servicing income 2,247 1,996 Servicing expenses: Servicing asset amortization — 1,457 Servicing asset impairment — 773 Other servicing expenses 926 408 Gross servicing expenses 926 2,638 Net servicing (loss) income $ 1,321 $ (642 )
Schedule of Data and Key Economic Assumptions Related to Mortgage Servicing Rights	Data and key economic assumptions related to the Company’s mortgage servicing rights as of March 31, 2017 and December 31, 2016 are as follows: March 31, December 31, 2017 2016 Unpaid principal balance $ 4,102,412 $ 2,833,958 Weighted-average prepayment speed (CPR) 8.40 % 8.40 % Estimated impact on fair value of a 10% increase (1,800 ) (1,256 ) Estimated impact on fair value of a 20% increase (3,487 ) (2,434 ) Discount rate 9.79 % 9.54 % Estimated impact on fair value of a 100 bp increase (1,987 ) (1,394 ) Estimated impact on fair value of a 200 bp increase (3,821 ) (2,679 ) Weighted-average coupon interest rate 3.65 % 3.59 % Weighted-average servicing fee (basis points) 28 27 Weighted-average remaining maturity (in months) 326 328

Income Taxes (Tables)

Income Taxes (Tables)	3 Months Ended
	Mar. 31, 2017
Income Tax Disclosure [Abstract]
Schedule of Allocation of Federal and State Income Taxes between Current and Deferred Portions	Allocation of federal and state income taxes between current and deferred portions is as follows: For the three months ended March 31, 2017 2016 Current $ — $ 92 Deferred 5,425 949 Total $ 5,425 $ 1,041
Schedule of Differences in Federal Income Tax Expense and State Tax Expense from Statutory Federal and State Rates	Federal income tax expense for the three months ended March 31, 2017 and 2016 differs from the statutory federal rate of 35% due to the following: For the three months ended March 31, 2017 2016 Federal taxes calculated at statutory rate $ 5,305 $ — Increase (decrease) resulting from: State taxes, net of federal benefit 610 1,001 Benefit of equity based compensation (195 ) — Other (295 ) 40 Income tax expense, as reported $ 5,425 $ 1,041
Schedule of Net Deferred Tax liability	The components of the net deferred tax liability at March 31, 2017 and December 31, 2016, are as follows: March 31, December 31, 2017 2016 Deferred tax assets: Allowance for loan losses $ 8,967 $ 8,516 Amortization of core deposit intangible 1,031 996 Compensation related 4,491 7,552 Unrealized loss on securities 2,107 2,462 Net operating loss carryforward 3,212 — Other 2,349 2,430 Subtotal 22,157 21,956 Deferred tax liabilities: FHLB stock dividends (827 ) (827 ) Depreciation (6,476 ) (6,548 ) Mortgage servicing rights (18,637 ) (12,558 ) Other (6,175 ) (6,203 ) Subtotal (32,115 ) (26,136 ) Net deferred tax liability $ (9,958 ) $ (4,180 )

Commitments and Contingencies (

Commitments and Contingencies (Tables)	3 Months Ended
	Mar. 31, 2017
Commitments And Contingencies Disclosure [Abstract]
Summary of Financial instruments with Off-Balance Sheet Credit Risk	Commitments may expire without being used. Off-balance sheet risk to credit loss exists up to the face amount of these instruments, although material losses are not anticipated. The same credit policies are used to make such commitments as are used for loans, including obtaining collateral at exercise of the commitment. March 31, December 31, 2017 2016 Commitments to extend credit, excluding interest rate lock commitments $ 647,395 $ 726,122 Letters of credit 23,486 22,547 Balance at end of period $ 670,881 $ 748,669
Summary of Allowance for Loan Repurchases or Indemnifications	The following table summarizes the activity in the repurchase reserve: March 31, 2017 2016 Balance at beginning of period $ 2,659 $ 2,156 Provision for loan repurchases or indemnifications 183 390 Recoveries on previous losses — — Losses on loans repurchased or indemnified — — Balance at end of period $ 2,842 $ 2,546

Derivatives (Tables)

Derivatives (Tables)	3 Months Ended
	Mar. 31, 2017
Derivative Instruments And Hedging Activities Disclosure [Abstract]
Schedule of Derivative Financial Instruments	The following table provides details on the Company’s derivative financial instruments as of the dates presented: Balance Sheet Classification Fair Value March 31, December 31, 2017 2016 Derivative assets: Not designated as hedging: Interest rate swaps Other Assets $ 1,215 $ 586 Forward commitments Other Assets — 12,731 Interest rate-lock commitments Other Assets 9,370 6,428 Total $ 10,585 $ 19,745 Derivative liabilities: Not designated as hedging: Interest rate swaps Other Liabilities $ 1,215 $ 586 Forward commitments Other Liabilities 3,445 — Total $ 4,660 $ 586
Schedule of Gains (Losses) Included in the Consolidated Statements of Income Related to Derivative Financial Instruments	Gains (losses) included in the Consolidated Statements of Income related to the Company’s derivative financial instruments were as follows: Three Months Ended March 31, 2017 2016 Derivatives not designated as hedging instruments: Interest rate lock commitments: Included in mortgage banking income $ 2,942 $ 7,268 Forward commitments: Included in mortgage banking income (3,320 ) (8,753 ) Total $ (378 ) $ (1,485 )

Fair Value of Financial Instr32

Fair Value of Financial Instruments (Tables)	3 Months Ended
	Mar. 31, 2017
Fair Value Disclosures [Abstract]
Estimated Fair Values of Financial Instruments	The estimated fair values of the Company’s financial instruments are as follows: Fair Value March 31, 2017 Carrying amount Level 1 Level 2 Level 3 Total Financial assets: Cash and cash equivalents $ 129,552 $ 129,552 $ — $ — $ 129,552 Available-for-sale securities 567,886 — 563,337 4,549 567,886 Federal Home Loan Bank Stock 7,743 — — 7,743 7,743 Loans, net 1,878,097 — 1,876,703 209 1,876,912 Loans held for sale 365,173 — 365,173 — 365,173 Interest receivable 7,247 — 7,247 — 7,247 Mortgage servicing rights 47,593 — — 47,593 47,593 Derivatives 10,585 — 10,585 — 10,585 Financial liabilities: Deposits: Without stated maturities $ 2,311,666 $ 2,311,666 $ — $ — $ 2,311,666 With stated maturities 389,533 — 386,568 — 386,568 Securities sold under agreement to repurchase 18,130 18,130 — — 18,130 Interest payable 928 522 406 — 928 Long-term debt 44,552 — 43,661 — 43,661 Derivatives 4,660 — 4,660 — 4,660 Fair Value December 31, 2016 Carrying amount Level 1 Level 2 Level 3 Total Financial assets: Cash and cash equivalents $ 136,327 $ 136,327 $ — $ — $ 136,327 Available-for-sale securities 582,183 — 577,634 4,549 582,183 Federal Home Loan Bank Stock 7,743 — — 7,743 7,743 Loans, net 1,827,037 — 1,822,054 1,281 1,823,335 Loans held for sale 507,442 — 507,442 — 507,442 Interest receivable 7,241 — 7,241 — 7,241 Mortgage servicing rights, net 32,070 — — 33,081 33,081 Derivatives 19,745 — 19,745 — 19,745 Financial liabilities: Deposits: Without stated maturities $ 2,280,531 $ 2,280,531 $ — $ — $ 2,280,531 With stated maturities 391,031 — 390,484 — 390,484 Securities sold under agreement to repurchase 21,561 21,561 — — 21,561 Short term borrowings 150,000 150,000 — — 150,000 Interest payable 620 237 383 — 620 Long-term debt 44,892 — 43,994 — 43,994 Derivatives 586 — 586 — 586
Balances and Levels of Assets Measured at Fair Value on Recurring Basis	The balances and levels of the assets measured at fair value on a recurring basis at March 31, 2017 are presented in the following tables: At March 31, 2017 Quoted prices in active markets for identical assets (liabilities) (level 1) Significant other observable inputs (level 2) Significant unobservable inputs (level 3) Total Recurring valuations: Financial assets: Available-for-sale securities: U.S. government agency securities $ — $ 987 $ — $ 987 Mortgage-backed securities — 425,943 — 425,943 Municipals, tax-exempt — 120,560 — 120,560 Treasury securities — 11,773 — 11,773 Equity securities — 4,074 4,549 8,623 Total $ — $ 563,337 $ 4,549 $ 567,886 Loans held for sale — 365,173 — 365,173 Mortgage servicing rights — — 47,593 47,593 Derivatives — 10,585 — 10,585 Financial Liabilities: Derivatives $ — $ 4,660 $ — $ 4,660 The balances and levels of the assets measured at fair value on a recurring basis at December 31, 2016 are presented in the following tables: At December 31, 2016 Quoted prices in active markets for identical (liabilities) (level 1) Significant other observable inputs (level 2) Significant unobservable inputs (level 3) Total Recurring valuations: Financial assets: Available-for-sale securities: U.S. government agency securities $ — $ 985 $ — $ 985 Mortgage-backed securities — 443,908 — 443,908 Municipals, tax-exempt — 116,923 — 116,923 Treasury securities — 11,757 — 11,757 Equity securities — 4,061 4,549 8,610 Total $ — $ 577,634 $ 4,549 $ 582,183 Loans held for sale — 507,442 — 507,442 Derivatives — 19,745 — 19,745 Financial Liabilities: Derivatives $ — $ 586 $ — $ 586
Balances and Levels of Assets Measured at Fair Value on Non-recurring Basis	The balances and levels of the assets measured at fair value on a non-recurring basis at March 31, 2017 are presented in the following tables: At March 31, 2017 Quoted prices in active markets for identical assets (liabilities) (level 1) Significant other observable inputs (level 2) Significant unobservable inputs (level 3) Total Non-recurring valuations: Financial assets: Foreclosed assets $ — $ — $ 942 $ 942 Impaired loans: Commercial and industrial — — 55 55 Commercial real estate: Non-owner occupied — — 154 154 Total $ — $ — $ 209 $ 209 The balances and levels of the assets measured at fair value on a non-recurring basis at December 31, 2016 are presented in the following tables: At December 31, 2016 Quoted prices in active markets for identical (liabilities) (level 1) Significant other observable inputs (level 2) Significant unobservable inputs (level 3) Total Non-recurring valuations: Financial assets: Foreclosed assets $ — $ — $ 2,315 $ 2,315 Mortgage servicing rights — — 32,070 32,070 Impaired Loans: Commercial and industrial — — 542 542 Commercial real estate: Owner occupied — — 635 635 Non-owner occupied — — — — Construction — — — — Residential real estate: 1-4 family mortgage — — 103 103 Multifamily — — — — Consumer and other — — 1 1 Total $ — $ — $ 1,281 $ 1,281
Information About Significant Unobservable Inputs (Level 3) Used in Valuation of Assets Measured at Fair Value on Nonrecurring Basis	The following table presents information as of March 31, 2017 about significant unobservable inputs (Level 3) used in the valuation of assets measured at fair value on a nonrecurring basis: Financial instrument Fair Valuation technique Significant Unobservable inputs Range of inputs Impaired loans $ 209 Valuation of collateral Discount for comparable sales 0%-30% Foreclosed assets $ 942 Appraised value of property less costs to sell Discount for costs to sell 0%-10% The following table presents information as of December 31, 2016 about significant unobservable inputs (Level 3) used in the valuation of assets measured at fair value on a nonrecurring basis: Financial instrument Fair Valuation technique Significant Unobservable inputs Range of inputs Impaired loans $ 1,281 Valuation of collateral Discount for comparable sales 0%-30% Foreclosed assets $ 2,315 Appraised value of property less costs to sell Discount for costs to sell 0%-10% Mortgage servicing rights, net $ 33,081 Discounted cash flows See Note 6 See Note 6
Differences between Fair Value and Principal Balance for Loans Held for Sale Measured at Fair Value	The following table summarizes the differences between the fair value and the principal balance for loans held for sale measured at fair value as of March 31, 2017 and December 31, 2016: March 31, 2017 Aggregate fair value Aggregate Unpaid Principal Balance Difference Mortgage loans held for sale measured at fair value $ 365,173 $ 351,628 $ 13,545 Past due loans of 90 days or more — — — Nonaccrual loans — — — December 31, 2016 Mortgage loans held for sale measured at fair value $ 507,442 $ 501,503 $ 5,939 Past due loans of 90 days or more — — — Nonaccrual loans — — —

Segment Reporting (Tables)

Segment Reporting (Tables)	3 Months Ended
	Mar. 31, 2017
Segment Reporting [Abstract]
Schedule of Segment Financial Information	The following tables provides segment financial information for the three months ended March 31, 2017 and 2016 follows: Three Months Ended March 31, 2017 Banking Mortgage Consolidated Net interest income $ 29,856 $ 395 $ 30,251 Provision for loan loss (257 ) — (257 ) Mortgage banking income 5,666 19,414 25,080 Other noninterest income 6,007 — 6,007 Depreciation 864 138 1,002 Amortization of intangibles 392 — 392 Amortization and impairment of mortgage servicing rights — — — Loss on sale of mortgage servicing rights — — — Other noninterest mortgage banking expense 4,836 17,532 22,368 Other noninterest expense 22,655 — 22,655 Income before income taxes 13,039 2,139 15,178 Income tax expense 5,425 Net income 9,753 Total assets $ 2,705,118 $ 461,341 $ 3,166,459 Goodwill 46,767 100 46,867 Three Months Ended March 31, 2016 Banking Mortgage Consolidated Net interest income $ 26,014 $ (71 ) $ 25,943 Provision for loan loss (9 ) — (9 ) Mortgage banking income 6,147 18,356 24,503 Other noninterest income 6,532 — 6,532 Depreciation 901 114 1,015 Amortization of intangibles 552 — 552 Amortization and impairment of mortgage servicing rights — 2,914 2,914 Loss on sale of mortgage servicing rights — — — Other noninterest mortgage banking expense 3,858 12,712 16,570 Other noninterest expense 20,296 — 20,296 Income before income taxes 13,095 2,545 15,640 Income tax expense 1,041 Net income 14,599 Total assets $ 2,532,060 $ 323,503 $ 2,855,563 Goodwill 46,767 100 46,867

Minimum Capital Requirements (T

Minimum Capital Requirements (Tables)	3 Months Ended
	Mar. 31, 2017
Banking And Thrift [Abstract]
Schedule of Actual and Required Capital Amounts and Ratios	Actual and required capital amounts and ratios are presented below at period-end. Actual For capital adequacy purposes Minimum Capital adequacy with capital buffer To be well capitalized under prompt corrective action provisions Amount Ratio Amount Ratio Amount Ratio Amount Ratio March 31, 2017 Total Capital (to risk-weighted assets) FB Financial Corporation $ 350,667 13.76 % $ 203,876 8.0 % $ 235,732 9.25 % N/A N/A FirstBank 316,013 12.42 % 203,551 8.0 % 235,356 9.25 % $ 254,439 10.0 % Tier 1 Capital (to risk-weighted assets) FB Financial Corporation $ 327,769 12.87 % $ 152,806 6.0 % $ 184,641 7.25 % N/A N/A FirstBank 293,115 11.52 % 152,664 6.0 % 184,469 7.25 % $ 152,664 6.0 % Tier 1 Capital (to average assets) FB Financial Corporation $ 327,769 10.46 % $ 125,342 4.0 % N/A N/A N/A N/A FirstBank 293,115 9.36 % 125,263 4.0 % N/A N/A $ 156,579 5.0 % Common Equity Tier 1 Capital (to risk-weighted assets) FB Financial Corporation $ 297,769 11.69 % $ 114,625 4.5 % $ 146,465 5.75 % N/A N/A FirstBank 293,115 11.52 % 114,498 4.5 % 146,303 5.75 % $ 165,386 6.5 % Actual For capital adequacy purposes Minimum Capital adequacy with capital buffer To be well capitalized under prompt corrective action provisions Amount Ratio Amount Ratio Amount Ratio Amount Ratio December 31, 2016 Total Capital (to risk-weighted assets) FB Financial Corporation $ 338,893 13.03 % $ 208,069 8.0 % $ 224,325 8.63 % N/A N/A FirstBank 304,018 11.72 % 207,521 8.0 % 223,733 8.63 % $ 259,401 10.0 % Tier 1 Capital (to risk-weighted assets) FB Financial Corporation $ 317,146 12.19 % $ 156,101 6.0 % $ 172,362 6.63 % N/A N/A FirstBank 282,271 10.88 % 155,664 6.0 % 171,879 6.63 % $ 155,664 6.0 % Tier 1 Capital (to average assets) FB Financial Corporation $ 317,146 10.05 % $ 126,227 4.0 % N/A N/A N/A N/A FirstBank 282,271 8.95 % 126,155 4.0 % N/A N/A $ 157,693 5.0 % Common Equity Tier 1 Capital (to risk-weighted assets) FB Financial Corporation $ 287,146 11.04 % $ 117,043 4.5 % $ 133,299 5.13 % N/A N/A FirstBank 282,271 10.88 % 116,748 4.5 % 132,963 5.13 % $ 168,636 6.5 %

Stock-Based Compensation (Table

Stock-Based Compensation (Tables)	3 Months Ended
	Mar. 31, 2017
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Summary of Vested and Unvested Restricted Stock Units Outstanding	The following table summarizes information about vested and unvested restricted stock units outstanding at March 31, 2017: Restricted Stock Units Outstanding Weighted Average Grant Date Fair Value Balance, December 31, 2016 1,200,848 $ 19.00 Grants 73,801 33.48 Released and distributed (vested) (70,687 ) 19.00 Forfeited/expired (544 ) 19.00 Balance, March 31, 2017 1,203,418 $ 19.15

Related party transactions (Tab

Related party transactions (Tables)	3 Months Ended
	Mar. 31, 2017
Related Party Transactions [Abstract]
Schedule of Loans Analysis to Executive Officers, Certain Management, Bank Directors and Their Affiliates	An analysis of loans to executive officers, certain management, and directors of the Bank and their affiliates follows: Loans outstanding at January 1, 2017 $ 27,370 New loans and advances 2,065 Repayments (1,975 ) Loans outstanding at March 31, 2017 $ 27,460

Basis of Presentation - Additio

Basis of Presentation - Additional Information (Details) $ / shares in Units, $ in Thousands	Jan. 02, 2017USD ($)	Sep. 15, 2016USD ($)$ / sharesshares	Aug. 15, 2016USD ($)	Jun. 28, 2016shares	Mar. 31, 2017Branchshares	Mar. 31, 2016shares	Dec. 31, 2016shares	Jul. 31, 2016shares
Class Of Stock [Line Items]
Description of stock split					the Company declared a 100-for-1 stock split, increasing the number of issued and authorized shares from 171,800 to 17,180,000 and 250,000 to 25,000,000, respectively.
Stock split ratio				0.01
Common stock, shares issued					24,154,323		24,107,660
Common stock, shares authorized					75,000,000		25,000,000
Dilutive instruments outstanding					472,554	0
ASC 860-50-35, Transfers and Servicing
Class Of Stock [Line Items]
Adjustment to retained earnings | $	$ 615
Pro forma
Class Of Stock [Line Items]
Effective tax rate					37.32%
Initial Public Offering
Class Of Stock [Line Items]
Common stock sold and issued, shares		6,764,704
Common stock sold and issued, price per share | $ / shares		$ 19
Proceeds from issuance of common stock, net of offering costs | $		$ 115,525
Distribution to majority shareholder from net proceeds | $		55,000
Repayments of aggregate principal amount of subordinated notes from net proceeds | $		$ 10,075	$ 10,075
Minimum
Class Of Stock [Line Items]
Common stock, shares issued				171,800
Common stock, shares authorized				250,000				25,000,000
Maximum
Class Of Stock [Line Items]
Common stock, shares issued				17,180,000
Common stock, shares authorized				25,000,000				75,000,000
FirstBank
Class Of Stock [Line Items]
Number of bank branches | Branch					45

Basis of Presentation - Schedul

Basis of Presentation - Schedule of Basic and Diluted Earnings Per Common Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Basic earnings per share calculation:
Net income	$ 9,753	$ 14,599
Weighted-average basic shares outstanding	24,138,437	17,180,000
Basic earnings per share	$ 0.40	$ 0.85
Diluted earnings per share:
Net income	$ 9,753	$ 14,599
Weighted-average basic shares outstanding	24,138,437	17,180,000
Average diluted common shares outstanding	472,554	0
Weighted-average diluted shares outstanding	24,610,991	17,180,000
Diluted earnings per share	$ 0.40	$ 0.85
Pro forma earnings per share:
Pro forma net income	$ 9,753	$ 9,803
Weighted-average basic shares outstanding	24,138,437	17,180,000
Pro forma basic earnings per share	$ 0.40	$ 0.57
Pro forma diluted earnings per share:
Pro forma net income	$ 9,753	$ 9,803
Weighted-average diluted shares outstanding	24,610,991	17,180,000
Pro forma diluted earnings per share	$ 0.40	$ 0.57

Mergers and acquisitions - Addi

Mergers and acquisitions - Additional Information (Details) $ in Thousands	Feb. 08, 2017USD ($)	Sep. 18, 2015USD ($)	Mar. 31, 2017USD ($)BranchBankingOffice	Mar. 31, 2016USD ($)	Dec. 31, 2016USD ($)
Business Acquisition [Line Items]
Assets			$ 3,166,459	$ 2,855,563	$ 3,276,881
Deposits			2,701,199		$ 2,671,562
Merger and conversion			$ 487	606
Clayton Banks
Business Acquisition [Line Items]
Business acquisition, date of acquisition agreement			Feb. 8, 2017
Acquisition value	$ 284,200
Assets			$ 1,199,000
Loans			1,065,000
Deposits			$ 929,000
Number of banking offices | BankingOffice			18
Merger and conversion			$ 487
Northwest Georgia Bank
Business Acquisition [Line Items]
Business acquisition, date of acquisition agreement			Apr. 27, 2015
Merger and conversion				$ 606
Business acquisition, effective date of acquisition			Sep. 18, 2015
Number of branches operated prior to acquisition | Branch			6
Cash purchase price		$ 1,500
Business combination, bargain purchase gain		2,794
Core deposit intangible asset		$ 4,931
Estimated useful life of intangible assets		10 years

Investment Securities - Summary

Investment Securities - Summary of Amortized Cost of Securities and Fair Values (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Schedule Of Available For Sale Securities [Line Items]
Amortized cost	$ 573,259	$ 588,459
Gross unrealized gains	3,974	3,943
Gross unrealized losses	(9,347)	(10,219)
Available-for-sale securities, at fair value	567,886	582,183
Debt Securities
Schedule Of Available For Sale Securities [Line Items]
Amortized cost	564,497	579,715
Gross unrealized gains	3,973	3,942
Gross unrealized losses	(9,207)	(10,084)
Available-for-sale securities, at fair value	559,263	573,573
Debt Securities | U.S. Government Agency Securities
Schedule Of Available For Sale Securities [Line Items]
Amortized cost	999	998
Gross unrealized losses	(12)	(13)
Available-for-sale securities, at fair value	987	985
Debt Securities | Mortgage-backed Securities - Residential
Schedule Of Available For Sale Securities [Line Items]
Amortized cost	432,499	450,874
Gross unrealized gains	824	939
Gross unrealized losses	(7,380)	(7,905)
Available-for-sale securities, at fair value	425,943	443,908
Debt Securities | Municipals, Tax Exempt
Schedule Of Available For Sale Securities [Line Items]
Amortized cost	119,182	116,034
Gross unrealized gains	3,149	3,003
Gross unrealized losses	(1,771)	(2,114)
Available-for-sale securities, at fair value	120,560	116,923
Debt Securities | Treasury Securities
Schedule Of Available For Sale Securities [Line Items]
Amortized cost	11,817	11,809
Gross unrealized losses	(44)	(52)
Available-for-sale securities, at fair value	11,773	11,757
Equity Securities
Schedule Of Available For Sale Securities [Line Items]
Amortized cost	8,762	8,744
Gross unrealized gains	1	1
Gross unrealized losses	(140)	(135)
Available-for-sale securities, at fair value	$ 8,623	$ 8,610

Investment Securities - Additio

Investment Securities - Additional Information (Details)	May 12, 2017USD ($)	Mar. 31, 2017USD ($)security	Mar. 31, 2016USD ($)	Dec. 31, 2016USD ($)security
Schedule Of Available For Sale Securities [Line Items]
Securities pledged, carrying amount		$ 401,409,000		$ 390,814,000
Recognized gains on early call of available-for-sale securities		$ 1,000
Sale of available-for-sale securities			$ 102,263,000
Number of securities in securities portfolio | security		335		329
Number of securities in securities portfolio, unrealized loss position | security		143		151
Other-than-temporary impairment recorded by the company		$ 0	$ 0
Subsequent Event
Schedule Of Available For Sale Securities [Line Items]
Sale of available-for-sale securities	$ 12,135,000
Recognized gain on available-for-sale securities	$ 23,000

Investment Securities - Schedul

Investment Securities - Schedule of Amortized Cost and Fair Value of Debt Securities by Contractual Maturity (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Schedule Of Available For Sale Securities [Line Items]
Amortized cost, Due in one year or less	$ 11,332	$ 9,290
Amortized cost, Due in one to five	28,982	25,520
Amortized cost, Due in five to ten years	27,447	31,122
Amortized cost, Due in over ten years	64,237	62,909
Amortized cost, Total	131,998	128,841
Total debt securities, Amortized cost	564,497	579,715
Fair value, Due in one year or less	11,429	9,352
Fair value, Due in one to five	30,069	26,340
Fair value, Due in five to ten years	28,486	32,248
Fair value, Due in over ten years	63,336	61,725
Fair value, Total	133,320	129,665
Total debt securities, Fair value	559,263	573,573
Mortgage-backed Securities - Residential
Schedule Of Available For Sale Securities [Line Items]
Total debt securities, Amortized cost	432,499	450,874
Total debt securities, Fair value	$ 425,943	$ 443,908

Investment Securities - Summa43

Investment Securities - Summary of Sales of Available-for-Sale Securities (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2016USD ($)
Available For Sale Securities Gross Realized Gain Loss [Abstract]
Proceeds from sales	$ 102,263
Gross realized gains	$ 1,400

Investment Securities - Sched44

Investment Securities - Schedule of Gross Unrealized Losses (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2017	Dec. 31, 2016
Schedule Of Available For Sale Securities [Line Items]
Fair Value, Less than 12 months	$ 429,969	$ 444,968
Unrealized Loss, Less than 12 months	8,543	9,409
Fair Value, 12 months or more	21,528	22,199
Unrealized Loss, 12 months or more	804	810
Fair Value, Total	451,497	467,167
Unrealized Losses, Total	9,347	10,219
Debt Securities
Schedule Of Available For Sale Securities [Line Items]
Fair Value, Less than 12 months	429,969	444,968
Unrealized Loss, Less than 12 months	8,543	9,409
Fair Value, 12 months or more	18,523	19,073
Unrealized Loss, 12 months or more	664	675
Fair Value, Total	448,492	464,041
Unrealized Losses, Total	9,207	10,084
Debt Securities | U.S. Government Agency Securities
Schedule Of Available For Sale Securities [Line Items]
Fair Value, Less than 12 months	987	985
Unrealized Loss, Less than 12 months	12	13
Fair Value, Total	987	985
Unrealized Losses, Total	12	13
Debt Securities | Mortgage-backed Securities - Residential
Schedule Of Available For Sale Securities [Line Items]
Fair Value, Less than 12 months	376,680	390,595
Unrealized Loss, Less than 12 months	6,730	7,230
Fair Value, 12 months or more	18,307	19,073
Unrealized Loss, 12 months or more	650	675
Fair Value, Total	394,987	409,668
Unrealized Losses, Total	7,380	7,905
Debt Securities | Municipals, Tax Exempt
Schedule Of Available For Sale Securities [Line Items]
Fair Value, Less than 12 months	40,529	43,132
Unrealized Loss, Less than 12 months	1,757	2,114
Fair Value, 12 months or more	216
Unrealized Loss, 12 months or more	14
Fair Value, Total	40,745	43,132
Unrealized Losses, Total	1,771	2,114
Debt Securities | Treasury Securities
Schedule Of Available For Sale Securities [Line Items]
Fair Value, Less than 12 months	11,773	10,256
Unrealized Loss, Less than 12 months	44	52
Fair Value, Total	11,773	10,256
Unrealized Losses, Total	44	52
Equity Securities
Schedule Of Available For Sale Securities [Line Items]
Fair Value, 12 months or more	3,005	3,126
Unrealized Loss, 12 months or more	140	135
Fair Value, Total	3,005	3,126
Unrealized Losses, Total	$ 140	$ 135

Loans and Allowance for Loan 45

Loans and Allowance for Loan Losses - Loans Outstanding by Major Lending Classification (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016	Mar. 31, 2016	Dec. 31, 2015
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans	$ 1,900,995	$ 1,848,784
Less: Allowance for loan losses	(22,898)	(21,747)	$ (24,431)	$ (24,460)
Net loans	1,878,097	1,827,037
Commercial and Industrial
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans	399,333	386,233
Less: Allowance for loan losses	(5,402)	(5,309)	(5,242)	(5,135)
Construction
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans	267,998	245,905
Less: Allowance for loan losses	(5,598)	(4,940)	(4,518)	(5,143)
Residential Real Estate | 1-to-4 Family Mortgage
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans	302,166	294,924
Less: Allowance for loan losses	(2,896)	(3,197)	(4,280)	(4,176)
Residential Real Estate | Residential Line of Credit
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans	177,928	177,190
Less: Allowance for loan losses	(1,514)	(1,613)	(2,075)	(2,201)
Residential Real Estate | Multi-Family Mortgage
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans	45,244	44,977
Less: Allowance for loan losses	(508)	(504)	(590)	(311)
Commercial Real Estate | Owner Occupied
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans	359,120	357,346
Less: Allowance for loan losses	(3,387)	(3,302)	(4,013)	(3,682)
Commercial Real Estate | Non-Owner Occupied
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans	273,716	267,902
Less: Allowance for loan losses	(2,660)	(2,019)	(2,739)	(2,622)
Consumer and Other
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans	75,490	74,307
Less: Allowance for loan losses	$ (933)	$ (863)	$ (974)	$ (1,190)

Loans and Allowance for Loan 46

Loans and Allowance for Loan Losses - Additional Information (Details) - USD ($)	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans	$ 1,900,995,000		$ 1,848,784,000
Acquired with deteriorated credit quality	16,099,000		16,058,000
Recorded investment in troubled debt restructurings	8,681,000		8,802,000
Allocation to specific reserves	234,000		402,000
Commitments to lend additional amounts to customers	0		1,000
Non-accrual loans	4,262,000		4,265,000
Payment default for loans modified as troubled debt restructurings	0	$ 0
FHLB Cincinnati | 1-to-4 Family Mortgage And Loans Held for Sale
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans	287,214,000		525,180,000
FHLB Cincinnati | Multi-Family Mortgage
Financing Receivable Recorded Investment Past Due [Line Items]
Gross loans	$ 31,309,000		$ 40,537,000

Loans and Allowance for Loan 47

Loans and Allowance for Loan Losses - Allowance for Loan Losses by Portfolio Segment and Related Investment in Loans Net of Unearned Interest (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Accounts Notes And Loans Receivable [Line Items]
Beginning balance	$ 21,747	$ 24,460
Provision for loan losses	(257)	(9)
Recoveries of loans previously charged-off	1,850	232
Loans charged off	(442)	(252)
Ending balance	22,898	24,431
Commercial and Industrial
Accounts Notes And Loans Receivable [Line Items]
Beginning balance	5,309	5,135
Provision for loan losses	179	99
Recoveries of loans previously charged-off	83	10
Loans charged off	(169)	(2)
Ending balance	5,402	5,242
Construction
Accounts Notes And Loans Receivable [Line Items]
Beginning balance	4,940	5,143
Provision for loan losses	635	(666)
Recoveries of loans previously charged-off	29	41
Loans charged off	(6)
Ending balance	5,598	4,518
Residential Real Estate | 1-to-4 Family Mortgage
Accounts Notes And Loans Receivable [Line Items]
Beginning balance	3,197	4,176
Provision for loan losses	(239)	42
Recoveries of loans previously charged-off	26	62
Loans charged off	(88)
Ending balance	2,896	4,280
Residential Real Estate | Residential Line of Credit
Accounts Notes And Loans Receivable [Line Items]
Beginning balance	1,613	2,201
Provision for loan losses	(155)	(163)
Recoveries of loans previously charged-off	56	37
Ending balance	1,514	2,075
Residential Real Estate | Multi-Family Mortgage
Accounts Notes And Loans Receivable [Line Items]
Beginning balance	504	311
Provision for loan losses	4	279
Ending balance	508	590
Commercial Real Estate | Owner Occupied
Accounts Notes And Loans Receivable [Line Items]
Beginning balance	3,302	3,682
Provision for loan losses	81	325
Recoveries of loans previously charged-off	4	6
Ending balance	3,387	4,013
Commercial Real Estate | Non-Owner Occupied
Accounts Notes And Loans Receivable [Line Items]
Beginning balance	2,019	2,622
Provision for loan losses	(998)	113
Recoveries of loans previously charged-off	1,639	4
Ending balance	2,660	2,739
Consumer and Other
Accounts Notes And Loans Receivable [Line Items]
Beginning balance	863	1,190
Provision for loan losses	236	(38)
Recoveries of loans previously charged-off	13	72
Loans charged off	(179)	(250)
Ending balance	$ 933	$ 974

Loans and Allowance for Loan 48

Loans and Allowance for Loan Losses - Allocation of Allowance for Loan Losses by Loan Category Broken Out Between Loans Individually Evaluated for Impairment and Collectively Evaluated for Impairment (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016	Mar. 31, 2016	Dec. 31, 2015
Accounts Notes And Loans Receivable [Line Items]
Individually evaluated for impairment	$ 243	$ 513
Collectively evaluated for impairment	22,655	21,234
Ending balance	22,898	21,747	$ 24,431	$ 24,460
Commercial and Industrial
Accounts Notes And Loans Receivable [Line Items]
Individually evaluated for impairment	34	135
Collectively evaluated for impairment	5,368	5,174
Ending balance	5,402	5,309	5,242	5,135
Construction
Accounts Notes And Loans Receivable [Line Items]
Collectively evaluated for impairment	5,598	4,940
Ending balance	5,598	4,940	4,518	5,143
Residential Real Estate | 1-to-4 Family Mortgage
Accounts Notes And Loans Receivable [Line Items]
Individually evaluated for impairment	22	23
Collectively evaluated for impairment	2,874	3,174
Ending balance	2,896	3,197	4,280	4,176
Residential Real Estate | Residential Line of Credit
Accounts Notes And Loans Receivable [Line Items]
Collectively evaluated for impairment	1,514	1,613
Ending balance	1,514	1,613	2,075	2,201
Residential Real Estate | Multi-Family Mortgage
Accounts Notes And Loans Receivable [Line Items]
Collectively evaluated for impairment	508	504
Ending balance	508	504	590	311
Commercial Real Estate | Owner Occupied
Accounts Notes And Loans Receivable [Line Items]
Individually evaluated for impairment	102	113
Collectively evaluated for impairment	3,285	3,189
Ending balance	3,387	3,302	4,013	3,682
Commercial Real Estate | Non-Owner Occupied
Accounts Notes And Loans Receivable [Line Items]
Individually evaluated for impairment	85	242
Collectively evaluated for impairment	2,575	1,777
Ending balance	2,660	2,019	2,739	2,622
Consumer and Other
Accounts Notes And Loans Receivable [Line Items]
Collectively evaluated for impairment	933	863
Ending balance	$ 933	$ 863	$ 974	$ 1,190

Loans and Allowance for Loan 49

Loans and Allowance for Loan Losses - Amount of Loans by Loan Category Broken Out Between Loans Individually Evaluated for Impairment and Collectively Evaluated for Impairment (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Accounts Notes And Loans Receivable [Line Items]
Individually evaluated for impairment	$ 9,419	$ 12,951
Collectively evaluated for impairment	1,875,477	1,819,775
Acquired with deteriorated credit quality	16,099	16,058
Gross loans	1,900,995	1,848,784
Commercial and Industrial
Accounts Notes And Loans Receivable [Line Items]
Individually evaluated for impairment	1,272	1,476
Collectively evaluated for impairment	397,583	384,279
Acquired with deteriorated credit quality	478	478
Gross loans	399,333	386,233
Construction
Accounts Notes And Loans Receivable [Line Items]
Individually evaluated for impairment	305	2,686
Collectively evaluated for impairment	263,424	238,900
Acquired with deteriorated credit quality	4,269	4,319
Gross loans	267,998	245,905
Residential Real Estate | 1-to-4 Family Mortgage
Accounts Notes And Loans Receivable [Line Items]
Individually evaluated for impairment	2,216	2,471
Collectively evaluated for impairment	297,817	290,346
Acquired with deteriorated credit quality	2,133	2,107
Gross loans	302,166	294,924
Residential Real Estate | Residential Line of Credit
Accounts Notes And Loans Receivable [Line Items]
Individually evaluated for impairment		311
Collectively evaluated for impairment	177,928	176,879
Gross loans	177,928	177,190
Residential Real Estate | Multi-Family Mortgage
Accounts Notes And Loans Receivable [Line Items]
Individually evaluated for impairment	1,014	1,027
Collectively evaluated for impairment	44,205	43,922
Acquired with deteriorated credit quality	25	28
Gross loans	45,244	44,977
Commercial Real Estate | Owner Occupied
Accounts Notes And Loans Receivable [Line Items]
Individually evaluated for impairment	2,459	2,752
Collectively evaluated for impairment	352,623	350,812
Acquired with deteriorated credit quality	4,038	3,782
Gross loans	359,120	357,346
Commercial Real Estate | Non-Owner Occupied
Accounts Notes And Loans Receivable [Line Items]
Individually evaluated for impairment	2,128	2,201
Collectively evaluated for impairment	266,436	260,361
Acquired with deteriorated credit quality	5,152	5,340
Gross loans	273,716	267,902
Consumer and Other
Accounts Notes And Loans Receivable [Line Items]
Individually evaluated for impairment	25	27
Collectively evaluated for impairment	75,461	74,276
Acquired with deteriorated credit quality	4	4
Gross loans	$ 75,490	$ 74,307

Loans and Allowance for Loan 50

Loans and Allowance for Loan Losses - Credit Quality Indicators by Portfolio Class (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Financing Receivable Allowance For Credit Losses [Line Items]
Gross loans	$ 1,900,995	$ 1,848,784
Pass
Financing Receivable Allowance For Credit Losses [Line Items]
Gross loans	1,801,744	1,744,392
Watch
Financing Receivable Allowance For Credit Losses [Line Items]
Gross loans	61,695	65,807
Substandard
Financing Receivable Allowance For Credit Losses [Line Items]
Gross loans	37,556	38,585
Commercial and Industrial
Financing Receivable Allowance For Credit Losses [Line Items]
Gross loans	399,333	386,233
Commercial and Industrial | Pass
Financing Receivable Allowance For Credit Losses [Line Items]
Gross loans	362,172	351,046
Commercial and Industrial | Watch
Financing Receivable Allowance For Credit Losses [Line Items]
Gross loans	34,722	31,074
Commercial and Industrial | Substandard
Financing Receivable Allowance For Credit Losses [Line Items]
Gross loans	2,439	4,113
Construction
Financing Receivable Allowance For Credit Losses [Line Items]
Gross loans	267,998	245,905
Construction | Pass
Financing Receivable Allowance For Credit Losses [Line Items]
Gross loans	260,791	236,588
Construction | Watch
Financing Receivable Allowance For Credit Losses [Line Items]
Gross loans	2,341	4,612
Construction | Substandard
Financing Receivable Allowance For Credit Losses [Line Items]
Gross loans	4,866	4,705
Residential Real Estate | 1-to-4 Family Mortgage
Financing Receivable Allowance For Credit Losses [Line Items]
Gross loans	302,166	294,924
Residential Real Estate | Residential Line of Credit
Financing Receivable Allowance For Credit Losses [Line Items]
Gross loans	177,928	177,190
Residential Real Estate | Multi-Family Mortgage
Financing Receivable Allowance For Credit Losses [Line Items]
Gross loans	45,244	44,977
Residential Real Estate | Pass | 1-to-4 Family Mortgage
Financing Receivable Allowance For Credit Losses [Line Items]
Gross loans	285,819	277,948
Residential Real Estate | Pass | Residential Line of Credit
Financing Receivable Allowance For Credit Losses [Line Items]
Gross loans	173,491	173,011
Residential Real Estate | Pass | Multi-Family Mortgage
Financing Receivable Allowance For Credit Losses [Line Items]
Gross loans	44,058	43,770
Residential Real Estate | Watch | 1-to-4 Family Mortgage
Financing Receivable Allowance For Credit Losses [Line Items]
Gross loans	6,894	6,945
Residential Real Estate | Watch | Residential Line of Credit
Financing Receivable Allowance For Credit Losses [Line Items]
Gross loans	2,016	1,875
Residential Real Estate | Watch | Multi-Family Mortgage
Financing Receivable Allowance For Credit Losses [Line Items]
Gross loans	147	152
Residential Real Estate | Substandard | 1-to-4 Family Mortgage
Financing Receivable Allowance For Credit Losses [Line Items]
Gross loans	9,453	10,031
Residential Real Estate | Substandard | Residential Line of Credit
Financing Receivable Allowance For Credit Losses [Line Items]
Gross loans	2,421	2,304
Residential Real Estate | Substandard | Multi-Family Mortgage
Financing Receivable Allowance For Credit Losses [Line Items]
Gross loans	1,039	1,055
Commercial Real Estate | Owner Occupied
Financing Receivable Allowance For Credit Losses [Line Items]
Gross loans	359,120	357,346
Commercial Real Estate | Non-Owner Occupied
Financing Receivable Allowance For Credit Losses [Line Items]
Gross loans	273,716	267,902
Commercial Real Estate | Pass | Owner Occupied
Financing Receivable Allowance For Credit Losses [Line Items]
Gross loans	341,784	338,698
Commercial Real Estate | Pass | Non-Owner Occupied
Financing Receivable Allowance For Credit Losses [Line Items]
Gross loans	258,887	249,877
Commercial Real Estate | Watch | Owner Occupied
Financing Receivable Allowance For Credit Losses [Line Items]
Gross loans	8,947	10,459
Commercial Real Estate | Watch | Non-Owner Occupied
Financing Receivable Allowance For Credit Losses [Line Items]
Gross loans	6,283	10,273
Commercial Real Estate | Substandard | Owner Occupied
Financing Receivable Allowance For Credit Losses [Line Items]
Gross loans	8,389	8,189
Commercial Real Estate | Substandard | Non-Owner Occupied
Financing Receivable Allowance For Credit Losses [Line Items]
Gross loans	8,546	7,752
Consumer and Other
Financing Receivable Allowance For Credit Losses [Line Items]
Gross loans	75,490	74,307
Consumer and Other | Pass
Financing Receivable Allowance For Credit Losses [Line Items]
Gross loans	74,742	73,454
Consumer and Other | Watch
Financing Receivable Allowance For Credit Losses [Line Items]
Gross loans	345	417
Consumer and Other | Substandard
Financing Receivable Allowance For Credit Losses [Line Items]
Gross loans	$ 403	$ 436

Loans and Allowance for Loan 51

Loans and Allowance for Loan Losses - Purchased Credit Impaired (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Financing Receivable Allowance For Credit Losses [Line Items]
Acquired with deteriorated credit quality	$ 16,099	$ 16,058
Commercial and Industrial
Financing Receivable Allowance For Credit Losses [Line Items]
Acquired with deteriorated credit quality	478	478
Construction
Financing Receivable Allowance For Credit Losses [Line Items]
Acquired with deteriorated credit quality	4,269	4,319
Residential Real Estate | 1-to-4 Family Mortgage
Financing Receivable Allowance For Credit Losses [Line Items]
Acquired with deteriorated credit quality	2,133	2,107
Residential Real Estate | Multi-Family Mortgage
Financing Receivable Allowance For Credit Losses [Line Items]
Acquired with deteriorated credit quality	25	28
Commercial Real Estate | Owner Occupied
Financing Receivable Allowance For Credit Losses [Line Items]
Acquired with deteriorated credit quality	4,038	3,782
Commercial Real Estate | Non-Owner Occupied
Financing Receivable Allowance For Credit Losses [Line Items]
Acquired with deteriorated credit quality	5,152	5,340
Consumer and Other
Financing Receivable Allowance For Credit Losses [Line Items]
Acquired with deteriorated credit quality	$ 4	$ 4

Loans and Allowance for Loan 52

Loans and Allowance for Loan Losses - Current Value of Loans Impaired at the Time of Acquisition (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Receivables [Abstract]
Contractually-required principal and interest	$ 21,997	$ 22,961
Nonaccretable difference	(3,756)	(4,459)
Cash flows expected to be collected	18,241	18,502
Accretable yield	(2,142)	(2,444)
Carrying value	$ 16,099	$ 16,058

Loans and Allowance for Loan 53

Loans and Allowance for Loan Losses - Changes in Accretable Yield and Nonaccretable Difference of Purchased Loans (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Accounts Notes And Loans Receivable [Line Items]
Accretable yield, Beginning balance	$ (2,444)
Accretable yield, Accretion	1,160	$ 826
Accretable yield, Ending balance	(2,142)
Nonaccretable difference, Beginning balance	(4,459)
Nonaccretable difference, Ending balance	(3,756)
Beginning balance	(8,143)	(12,223)
Charge-offs	5	440
Recoveries	(23)
Sale of credit card portfolio		70
Accretion	1,160	826
Ending balance	(7,001)	(10,887)
Purchased Credit Impaired
Accounts Notes And Loans Receivable [Line Items]
Accretable yield, Beginning balance	(2,444)	(1,637)
Accretable yield, Principal reductions/ pay-offs	(698)	(231)
Accretable yield, Recoveries	(23)
Accretable yield, Accretion	1,023	408
Accretable yield, Ending balance	(2,142)	(1,460)
Nonaccretable difference, Beginning balance	(4,459)	(8,369)
Nonaccretable difference, Principal reductions/ pay-offs	698	231
Nonaccretable difference, Charge-offs	5	440
Nonaccretable difference, Ending balance	(3,756)	(7,698)
Purchased Non-impaired
Accounts Notes And Loans Receivable [Line Items]
Accretable yield, Beginning balance	(1,240)	(2,008)
Accretable yield, Accretion	137	418
Accretable yield, Ending balance	$ (1,103)	(1,590)
Nonaccretable difference, Beginning balance		(209)
Nonaccretable difference, Sale of credit card portfolio		70
Nonaccretable difference, Ending balance		$ (139)

Loans and Allowance for Loan 54

Loans and Allowance for Loan Losses - Past Due Loans (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Financing Receivable Recorded Investment Past Due [Line Items]
Loans	$ 1,884,896	$ 1,832,726
Non Accruing
Financing Receivable Recorded Investment Past Due [Line Items]
Loans	7,706	8,729
30-89 Days Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Loans	6,171	5,749
90 Days or More and Accruing Interest
Financing Receivable Recorded Investment Past Due [Line Items]
Loans	1,590	1,329
Financing Receivables Current
Financing Receivable Recorded Investment Past Due [Line Items]
Loans	1,869,429	1,816,919
Commercial and Industrial
Financing Receivable Recorded Investment Past Due [Line Items]
Loans	398,855	385,755
Commercial and Industrial | Non Accruing
Financing Receivable Recorded Investment Past Due [Line Items]
Loans	1,092	1,297
Commercial and Industrial | 30-89 Days Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Loans	436	262
Commercial and Industrial | 90 Days or More and Accruing Interest
Financing Receivable Recorded Investment Past Due [Line Items]
Loans	123	127
Commercial and Industrial | Financing Receivables Current
Financing Receivable Recorded Investment Past Due [Line Items]
Loans	397,204	384,069
Construction
Financing Receivable Recorded Investment Past Due [Line Items]
Loans	263,729	241,586
Construction | Non Accruing
Financing Receivable Recorded Investment Past Due [Line Items]
Loans	248	254
Construction | 30-89 Days Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Loans	174	441
Construction | 90 Days or More and Accruing Interest
Financing Receivable Recorded Investment Past Due [Line Items]
Loans	194	17
Construction | Financing Receivables Current
Financing Receivable Recorded Investment Past Due [Line Items]
Loans	263,113	240,874
Residential Real Estate | 1-to-4 Family Mortgage
Financing Receivable Recorded Investment Past Due [Line Items]
Loans	300,033	292,817
Residential Real Estate | 1-to-4 Family Mortgage | Non Accruing
Financing Receivable Recorded Investment Past Due [Line Items]
Loans	1,950	2,289
Residential Real Estate | Residential Line of Credit
Financing Receivable Recorded Investment Past Due [Line Items]
Loans	177,928	177,190
Residential Real Estate | Residential Line of Credit | Non Accruing
Financing Receivable Recorded Investment Past Due [Line Items]
Loans	285	601
Residential Real Estate | Multi-Family Mortgage
Financing Receivable Recorded Investment Past Due [Line Items]
Loans	45,219	44,949
Residential Real Estate | 30-89 Days Past Due | 1-to-4 Family Mortgage
Financing Receivable Recorded Investment Past Due [Line Items]
Loans	3,601	3,130
Residential Real Estate | 30-89 Days Past Due | Residential Line of Credit
Financing Receivable Recorded Investment Past Due [Line Items]
Loans	1,307	1,139
Residential Real Estate | 90 Days or More and Accruing Interest | 1-to-4 Family Mortgage
Financing Receivable Recorded Investment Past Due [Line Items]
Loans	346	697
Residential Real Estate | 90 Days or More and Accruing Interest | Residential Line of Credit
Financing Receivable Recorded Investment Past Due [Line Items]
Loans	780	433
Residential Real Estate | Financing Receivables Current | 1-to-4 Family Mortgage
Financing Receivable Recorded Investment Past Due [Line Items]
Loans	294,136	286,701
Residential Real Estate | Financing Receivables Current | Residential Line of Credit
Financing Receivable Recorded Investment Past Due [Line Items]
Loans	175,556	175,017
Residential Real Estate | Financing Receivables Current | Multi-Family Mortgage
Financing Receivable Recorded Investment Past Due [Line Items]
Loans	45,219	44,949
Commercial Real Estate | Owner Occupied
Financing Receivable Recorded Investment Past Due [Line Items]
Loans	355,082	353,564
Commercial Real Estate | Owner Occupied | Non Accruing
Financing Receivable Recorded Investment Past Due [Line Items]
Loans	1,933	2,007
Commercial Real Estate | Non-Owner Occupied
Financing Receivable Recorded Investment Past Due [Line Items]
Loans	268,564	262,562
Commercial Real Estate | Non-Owner Occupied | Non Accruing
Financing Receivable Recorded Investment Past Due [Line Items]
Loans	2,170	2,251
Commercial Real Estate | 30-89 Days Past Due | Owner Occupied
Financing Receivable Recorded Investment Past Due [Line Items]
Loans	217	186
Commercial Real Estate | 30-89 Days Past Due | Non-Owner Occupied
Financing Receivable Recorded Investment Past Due [Line Items]
Loans	81	158
Commercial Real Estate | 90 Days or More and Accruing Interest | Owner Occupied
Financing Receivable Recorded Investment Past Due [Line Items]
Loans	81
Commercial Real Estate | Financing Receivables Current | Owner Occupied
Financing Receivable Recorded Investment Past Due [Line Items]
Loans	352,851	351,371
Commercial Real Estate | Financing Receivables Current | Non-Owner Occupied
Financing Receivable Recorded Investment Past Due [Line Items]
Loans	266,313	260,153
Consumer and Other
Financing Receivable Recorded Investment Past Due [Line Items]
Loans	75,486	74,303
Consumer and Other | Non Accruing
Financing Receivable Recorded Investment Past Due [Line Items]
Loans	28	30
Consumer and Other | 30-89 Days Past Due
Financing Receivable Recorded Investment Past Due [Line Items]
Loans	355	433
Consumer and Other | 90 Days or More and Accruing Interest
Financing Receivable Recorded Investment Past Due [Line Items]
Loans	66	55
Consumer and Other | Financing Receivables Current
Financing Receivable Recorded Investment Past Due [Line Items]
Loans	$ 75,037	$ 73,785

Loans and Allowance for Loan 55

Loans and Allowance for Loan Losses - Impaired Loans Recognized, Segregated by Class (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Financing Receivable Impaired [Line Items]
Impaired loans with related allowance, Recorded investment	$ 1,970		$ 2,744
Impaired loans with related allowance, Unpaid principal	2,936		3,556
Impaired loans with related allowance, Related allowance	243		513
Impaired loan with no related allowance, Recorded investment	7,449		10,207
Impaired loan with no related allowance, Unpaid principal	9,433		12,170
Total impaired loans, Recorded investment	9,419		12,951
Total impaired loans, Unpaid principal	12,369		15,726
Total impaired loans, Related allowance	243		513
Impaired loans with related allowance, Average recorded investment	2,357	$ 7,770	6,432
Impaired loans with related allowance, Interest income recognized (cash basis)	17	27	43
Impaired loan with no related allowance, Average recorded investment	8,828	8,280	7,835
Impaired loan with no related allowance, Interest income recognized (cash basis)	81	105	455
Total impaired loans, Average recorded investment	11,185	16,050	14,267
Total impaired loans, Interest income recognized (cash basis)	98	132	498
Commercial and Industrial
Financing Receivable Impaired [Line Items]
Impaired loans with related allowance, Recorded investment	727		854
Impaired loans with related allowance, Unpaid principal	869		854
Impaired loans with related allowance, Related allowance	34		135
Impaired loan with no related allowance, Recorded investment	545		622
Impaired loan with no related allowance, Unpaid principal	676		746
Impaired loans with related allowance, Average recorded investment	791	1,051	994
Impaired loans with related allowance, Interest income recognized (cash basis)	5	5	17
Impaired loan with no related allowance, Average recorded investment	584	573	494
Impaired loan with no related allowance, Interest income recognized (cash basis)	9	1	20
Construction
Financing Receivable Impaired [Line Items]
Impaired loan with no related allowance, Recorded investment	305		2,686
Impaired loan with no related allowance, Unpaid principal	317		2,694
Impaired loans with related allowance, Average recorded investment		154	154
Impaired loan with no related allowance, Average recorded investment	1,496	2,685	2,622
Impaired loan with no related allowance, Interest income recognized (cash basis)	5	31	132
Residential Real Estate | 1-to-4 Family Mortgage
Financing Receivable Impaired [Line Items]
Impaired loans with related allowance, Recorded investment	99		103
Impaired loans with related allowance, Unpaid principal	365		369
Impaired loans with related allowance, Related allowance	22		23
Impaired loan with no related allowance, Recorded investment	2,117		2,368
Impaired loan with no related allowance, Unpaid principal	2,118		2,370
Impaired loans with related allowance, Average recorded investment	101	2,187	1,750
Impaired loans with related allowance, Interest income recognized (cash basis)		16	1
Impaired loan with no related allowance, Average recorded investment	2,243	1,749	1,329
Impaired loan with no related allowance, Interest income recognized (cash basis)	17	42	137
Residential Real Estate | Residential Line of Credit
Financing Receivable Impaired [Line Items]
Impaired loan with no related allowance, Recorded investment			311
Impaired loan with no related allowance, Unpaid principal			321
Impaired loans with related allowance, Average recorded investment		163
Impaired loan with no related allowance, Average recorded investment	156		156
Impaired loan with no related allowance, Interest income recognized (cash basis)			10
Residential Real Estate | Multi-Family Mortgage
Financing Receivable Impaired [Line Items]
Impaired loan with no related allowance, Recorded investment	1,014		1,027
Impaired loan with no related allowance, Unpaid principal	1,014		1,027
Impaired loans with related allowance, Average recorded investment			1,756
Impaired loan with no related allowance, Average recorded investment	1,021	1,066	1,051
Impaired loan with no related allowance, Interest income recognized (cash basis)	11	1	37
Commercial Real Estate | Owner Occupied
Financing Receivable Impaired [Line Items]
Impaired loans with related allowance, Recorded investment	623		635
Impaired loans with related allowance, Unpaid principal	654		654
Impaired loans with related allowance, Related allowance	102		113
Impaired loan with no related allowance, Recorded investment	1,836		2,117
Impaired loan with no related allowance, Unpaid principal	2,943		3,205
Impaired loans with related allowance, Average recorded investment	629	1,310	1,777
Impaired loans with related allowance, Interest income recognized (cash basis)	12		25
Impaired loan with no related allowance, Average recorded investment	1,977	1,095	1,120
Impaired loan with no related allowance, Interest income recognized (cash basis)	38	30	119
Commercial Real Estate | Non-Owner Occupied
Financing Receivable Impaired [Line Items]
Impaired loans with related allowance, Recorded investment	521		1,151
Impaired loans with related allowance, Unpaid principal	1,048		1,678
Impaired loans with related allowance, Related allowance	85		242
Impaired loan with no related allowance, Recorded investment	1,607		1,050
Impaired loan with no related allowance, Unpaid principal	2,339		1,781
Impaired loans with related allowance, Average recorded investment	836	2,905	1
Impaired loans with related allowance, Interest income recognized (cash basis)		6
Impaired loan with no related allowance, Average recorded investment	1,329	$ 1,112	1,050
Consumer and Other
Financing Receivable Impaired [Line Items]
Impaired loans with related allowance, Recorded investment			1
Impaired loans with related allowance, Unpaid principal			1
Impaired loan with no related allowance, Recorded investment	25		26
Impaired loan with no related allowance, Unpaid principal	26		26
Impaired loans with related allowance, Average recorded investment	1
Impaired loan with no related allowance, Average recorded investment	26		$ 13
Impaired loan with no related allowance, Interest income recognized (cash basis)	$ 1

Loans and Allowance for Loan 56

Loans and Allowance for Loan Losses - Financial Effect of TDRs (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2017USD ($)loan	Mar. 31, 2016USD ($)loan
Troubled Debt Restructurings [Line Items]
Number of loans | loan	4	2
Pre-modification outstanding recorded investment	$ 1,093	$ 443
Post-modification outstanding recorded investment	$ 1,093	433
Charge offs and specific reserves		$ 39
Commercial and Industrial
Troubled Debt Restructurings [Line Items]
Number of loans | loan	1
Pre-modification outstanding recorded investment	$ 5
Post-modification outstanding recorded investment	$ 5
Commercial Real Estate | Owner Occupied
Troubled Debt Restructurings [Line Items]
Number of loans | loan	1
Pre-modification outstanding recorded investment	$ 377
Post-modification outstanding recorded investment	$ 377
Commercial Real Estate | Non-Owner Occupied
Troubled Debt Restructurings [Line Items]
Number of loans | loan	2
Pre-modification outstanding recorded investment	$ 711
Post-modification outstanding recorded investment	$ 711
Residential Real Estate | 1-to-4 Family Mortgage
Troubled Debt Restructurings [Line Items]
Number of loans | loan		2
Pre-modification outstanding recorded investment		$ 443
Post-modification outstanding recorded investment		433
Charge offs and specific reserves		$ 39

Foreclosed Real Estate - Summar

Foreclosed Real Estate - Summary of Foreclosed Real Estate (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Real Estate [Abstract]
Balance at beginning of period	$ 7,403	$ 11,641
Transfers from loans	888	530
Properties sold	(2,228)	(1,560)
Gain on sale of foreclosed assets	871	57
Transferred to loans		(67)
Write-downs and partial liquidations	(123)	(68)
Balance at end of period	$ 6,811	$ 10,533

Foreclosed Real Estate - Additi

Foreclosed Real Estate - Additional Information (Details) - Residential Real Estate Properties - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Real Estate Properties [Line Items]
Foreclosed residential real estate properties	$ 2,568	$ 2,143
Total foreclosure proceedings in process	$ 153	$ 96

Mortgage Servicing Rights - Sch

Mortgage Servicing Rights - Schedule of Changes in Mortgage Servicing Rights (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Transfers And Servicing [Abstract]
Carrying value at December 31	$ 32,070	$ 29,711
Fair value impact of change in accounting policy (See Note 1)	1,011
Carrying value at beginning of period	33,081	29,711
Capitalization	15,013	9,130
Amortization		(1,457)
Impairment		(773)
Change in fair value:
Due to pay-offs/pay-downs	(265)
Due to change in valuation inputs or assumptions	(236)
Carrying value at March 31	$ 47,593	$ 36,611

Mortgage Servicing Rights - S60

Mortgage Servicing Rights - Schedule of Servicing Income and Expense Included in Mortgage Banking Income (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Servicing income:
Servicing income	$ 2,748	$ 1,996
Change in fair value of mortgage servicing rights	(501)
Gross servicing income	2,247	1,996
Servicing expenses:
Servicing asset amortization		1,457
Servicing asset impairment		773
Other servicing expenses	926	408
Gross servicing expenses	926	2,638
Net servicing (loss) income	$ 1,321	$ (642)

Mortgage Servicing Rights - S61

Mortgage Servicing Rights - Schedule of Data and Key Economic Assumptions Related to Mortgage Servicing Rights (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2017	Dec. 31, 2016
Transfers And Servicing [Abstract]
Unpaid principal balance	$ 4,102,412	$ 2,833,958
Weighted-average prepayment speed (CPR)	8.40%	8.40%
Estimated impact on fair value of a 10% increase	$ (1,800)	$ (1,256)
Estimated impact on fair value of a 20% increase	$ (3,487)	$ (2,434)
Discount rate	9.79%	9.54%
Estimated impact on fair value of a 100 bp increase	$ (1,987)	$ (1,394)
Estimated impact on fair value of a 200 bp increase	$ (3,821)	$ (2,679)
Weighted-average coupon interest rate	3.65%	3.59%
Weighted-average servicing fee (basis points)	0.28%	0.27%
Weighted-average remaining maturity (in months)	326 months	328 months

Mortgage Servicing Rights - Add

Mortgage Servicing Rights - Additional Information (Details) - USD ($) $ in Thousands	Apr. 01, 2017	Mar. 07, 2017	Dec. 31, 2016	Mar. 31, 2017
Servicing Assets At Fair Value [Line Items]
Mortgage servicing rights sold			$ 34,118
Mortgage loans serviced			3,332,903
Mortgage Loans Subserviced			$ 3,332,903	$ 787,905
Serviced mortgage loan intended to be sold		$ 1,086,465
Subsequent Event
Servicing Assets At Fair Value [Line Items]
Gain on sale of serviced mortgage loan transaction	$ 17
Servicing asset transaction costs	$ 248

Income Taxes - Additional Infor

Income Taxes - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Sep. 30, 2016	Mar. 31, 2016
Income Taxes [Line Items]
Deferred tax liability increased due to change in taxable status		$ 13,181
Statutory federal income tax rate	35.00%		35.00%
Deferred income tax expense related to unrealized gain on available for sale securities	$ 5,425		$ 949
C Corporation
Income Taxes [Line Items]
Deferred income tax expense related to unrealized gain on available for sale securities		$ 2,955

Income Taxes - Schedule of Allo

Income Taxes - Schedule of Allocation of Federal and State Income Taxes between Current and Deferred Portions (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Income Tax Disclosure [Abstract]
Current		$ 92
Deferred	$ 5,425	949
Total	$ 5,425	$ 1,041

Income Taxes - Schedule of Diff

Income Taxes - Schedule of Differences in Federal Income Tax Expense and State Tax Expense from Statutory Federal and State Rates (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Income Tax Disclosure [Abstract]
Federal taxes calculated at statutory rate	$ 5,305
Increase (decrease) resulting from:
State taxes, net of federal benefit	610	$ 1,001
Benefit of equity based compensation	(195)
Other	(295)	40
Total	$ 5,425	$ 1,041

Income Taxes - Schedule of Net

Income Taxes - Schedule of Net Deferred Tax liability (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Deferred tax assets:
Allowance for loan losses	$ 8,967	$ 8,516
Amortization of core deposit intangible	1,031	996
Compensation related	4,491	7,552
Unrealized loss on securities	2,107	2,462
Net operating loss carryforward	3,212
Other	2,349	2,430
Subtotal	22,157	21,956
Deferred tax liabilities:
FHLB stock dividends	(827)	(827)
Depreciation	(6,476)	(6,548)
Mortgage servicing rights	(18,637)	(12,558)
Other	(6,175)	(6,203)
Subtotal	(32,115)	(26,136)
Net deferred tax liability	$ (9,958)	$ (4,180)

Commitments and Contingencies -

Commitments and Contingencies - Summary of Financial Instruments with Off-Balance Sheet Credit Risk (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Fair Value Off Balance Sheet Risks Disclosure Information [Line Items]
Financial instruments with off-balance sheet credit loss	$ 670,881	$ 748,669
Commitments to Extend Credit, Excluding Interest Rate Lock Commitments
Fair Value Off Balance Sheet Risks Disclosure Information [Line Items]
Financial instruments with off-balance sheet credit loss	647,395	726,122
Letter of Credit
Fair Value Off Balance Sheet Risks Disclosure Information [Line Items]
Financial instruments with off-balance sheet credit loss	$ 23,486	$ 22,547

Commitments and Contingencies68

Commitments and Contingencies - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Commitments And Contingencies Disclosure [Abstract]
Total principal amount of loans repurchased or indemnified	$ 849	$ 849

Commitments and Contingencies69

Commitments and Contingencies - Summary of Allowance for Loan Repurchases or Indemnifications (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Commitments And Contingencies Disclosure [Abstract]
Balance at beginning of period	$ 2,659	$ 2,156
Provision for loan repurchases or indemnifications	183	390
Balance at end of period	$ 2,842	$ 2,546

Derivatives - Additional Inform

Derivatives - Additional Information (Details) - USD ($)	3 Months Ended
	Mar. 31, 2017	Dec. 31, 2016
Derivative [Line Items]
Lock in period for interest rates	45 days
Interest Rate Contracts with Corporate Customers
Derivative [Line Items]
Notional amount	$ 78,223,000	$ 22,243,000
Offsetting Interest Rate Contracts with Other Financial Institutions
Derivative [Line Items]
Notional amount	78,223,000	22,243,000
Interest Rate Swaps
Derivative [Line Items]
Fair value on swap	1,215,000	586,000
Commitments to Fund Fixed-Rate Mortgage Loans
Derivative [Line Items]
Notional amount	449,009,000	532,920,000
Commitments to Sell Residential Mortgage Loans
Derivative [Line Items]
Notional amount	$ 598,500,000	$ 829,000,000

Derivatives - Schedule of Deriv

Derivatives - Schedule of Derivative Financial Instruments (Details) - Not Designated As Hedging - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Derivatives Fair Value [Line Items]
Derivative assets	$ 10,585	$ 19,745
Derivative liabilities	4,660	586
Other Assets | Interest Rate Swaps
Derivatives Fair Value [Line Items]
Derivative assets	1,215	586
Other Assets | Forward commitments
Derivatives Fair Value [Line Items]
Derivative assets		12,731
Other Assets | Interest rate-lock commitments
Derivatives Fair Value [Line Items]
Derivative assets	9,370	6,428
Other Liabilities | Interest Rate Swaps
Derivatives Fair Value [Line Items]
Derivative liabilities	1,215	$ 586
Other Liabilities | Forward commitments
Derivatives Fair Value [Line Items]
Derivative liabilities	$ 3,445

Derivatives - Schedule of Gains

Derivatives - Schedule of Gains (Losses) Included in the Consolidated Statements of Income Related to Derivative Financial Instruments (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Derivatives Fair Value [Line Items]
Gains (losses) on derivative financial instruments	$ (378)	$ (1,485)
Derivatives Not Designated As Hedging Instruments | Included in Mortgage Banking Income | Interest rate-lock commitments
Derivatives Fair Value [Line Items]
Gains (losses) on derivative financial instruments	2,942	7,268
Derivatives Not Designated As Hedging Instruments | Included in Mortgage Banking Income | Forward commitments
Derivatives Fair Value [Line Items]
Gains (losses) on derivative financial instruments	$ (3,320)	$ (8,753)

Fair Value Measurements - Estim

Fair Value Measurements - Estimated Fair Values of Financial Instruments (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016	Mar. 31, 2016	Dec. 31, 2015
Financial assets:
Available-for-sale securities, at fair value	$ 567,886	$ 582,183
Interest receivable	7,247	7,241
Mortgage servicing rights, net	47,593	33,081	$ 36,611	$ 29,711
Carrying Amount
Financial assets:
Cash and cash equivalents	129,552	136,327
Available-for-sale securities, at fair value	567,886	582,183
Federal Home Loan Bank Stock	7,743	7,743
Loans, net	1,878,097	1,827,037
Loans held for sale	365,173	507,442
Interest receivable	7,247	7,241
Mortgage servicing rights, net	47,593	32,070
Derivatives assets	10,585	19,745
Financial liabilities:
Deposits, Without stated maturities	2,311,666	2,280,531
Deposits, With stated maturities	389,533	391,031
Securities sold under agreement to repurchase	18,130	21,561
Short term borrowings		150,000
Interest payable	928	620
Long-term debt	44,552	44,892
Derivatives liabilities	4,660	586
Fair Value
Financial assets:
Cash and cash equivalents	129,552	136,327
Available-for-sale securities, at fair value	567,886	582,183
Federal Home Loan Bank Stock	7,743	7,743
Loans, net	1,876,912	1,823,335
Loans held for sale	365,173	507,442
Interest receivable	7,247	7,241
Mortgage servicing rights, net	47,593	33,081
Derivatives assets	10,585	19,745
Financial liabilities:
Deposits, Without stated maturities	2,311,666	2,280,531
Deposits, With stated maturities	386,568	390,484
Securities sold under agreement to repurchase	18,130	21,561
Short term borrowings		150,000
Interest payable	928	620
Long-term debt	43,661	43,994
Derivatives liabilities	4,660	586
Fair Value | Fair Value Level 1
Financial assets:
Cash and cash equivalents	129,552	136,327
Financial liabilities:
Deposits, Without stated maturities	2,311,666	2,280,531
Securities sold under agreement to repurchase	18,130	21,561
Short term borrowings		150,000
Interest payable	522	237
Fair Value | Fair Value Level 2
Financial assets:
Available-for-sale securities, at fair value	563,337	577,634
Loans, net	1,876,703	1,822,054
Loans held for sale	365,173	507,442
Interest receivable	7,247	7,241
Derivatives assets	10,585	19,745
Financial liabilities:
Deposits, With stated maturities	386,568	390,484
Interest payable	406	383
Long-term debt	43,661	43,994
Derivatives liabilities	4,660	586
Fair Value | Fair Value Level 3
Financial assets:
Available-for-sale securities, at fair value	4,549	4,549
Federal Home Loan Bank Stock	7,743	7,743
Loans, net	209	1,281
Mortgage servicing rights, net	$ 47,593	$ 33,081

Fair Value Measurements - Balan

Fair Value Measurements - Balances and Levels of Assets Measured at Fair Value on Recurring and Nonrecurring Basis (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016	Mar. 31, 2016	Dec. 31, 2015
Financial assets:
Available-for-sale securities, at fair value	$ 567,886	$ 582,183
Mortgage servicing rights, net	47,593	33,081	$ 36,611	$ 29,711
Foreclosed real estate, net	6,811	7,403	$ 10,533	$ 11,641
Impaired loans	9,419	12,951
Fair Value, Measurements, Recurring
Financial assets:
Available-for-sale securities, at fair value	567,886	582,183
Loans held for sale	365,173	507,442
Mortgage servicing rights, net	47,593
Derivatives assets	10,585	19,745
Financial liabilities:
Derivatives liabilities	4,660	586
Fair Value, Measurements, Recurring | U.S. Government Agency Securities
Financial assets:
Available-for-sale securities, at fair value	987	985
Fair Value, Measurements, Recurring | Mortgage-backed Securities
Financial assets:
Available-for-sale securities, at fair value	425,943	443,908
Fair Value, Measurements, Recurring | Municipals, Tax Exempt
Financial assets:
Available-for-sale securities, at fair value	120,560	116,923
Fair Value, Measurements, Recurring | Treasury Securities
Financial assets:
Available-for-sale securities, at fair value	11,773	11,757
Fair Value, Measurements, Recurring | Equity Securities
Financial assets:
Available-for-sale securities, at fair value	8,623	8,610
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2)
Financial assets:
Available-for-sale securities, at fair value	563,337	577,634
Loans held for sale	365,173	507,442
Derivatives assets	10,585	19,745
Financial liabilities:
Derivatives liabilities	4,660	586
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | U.S. Government Agency Securities
Financial assets:
Available-for-sale securities, at fair value	987	985
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | Mortgage-backed Securities
Financial assets:
Available-for-sale securities, at fair value	425,943	443,908
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | Municipals, Tax Exempt
Financial assets:
Available-for-sale securities, at fair value	120,560	116,923
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | Treasury Securities
Financial assets:
Available-for-sale securities, at fair value	11,773	11,757
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | Equity Securities
Financial assets:
Available-for-sale securities, at fair value	4,074	4,061
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3)
Financial assets:
Available-for-sale securities, at fair value	4,549	4,549
Mortgage servicing rights, net	47,593
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | Equity Securities
Financial assets:
Available-for-sale securities, at fair value	4,549	4,549
Fair Value, Measurements, Nonrecurring
Financial assets:
Mortgage servicing rights, net		32,070
Foreclosed real estate, net	942	2,315
Impaired loans	209	1,281
Fair Value, Measurements, Nonrecurring | Commercial and Industrial
Financial assets:
Impaired loans	55	542
Fair Value, Measurements, Nonrecurring | Consumer and Other
Financial assets:
Impaired loans		1
Fair Value, Measurements, Nonrecurring | Non-Owner Occupied | Commercial Real Estate
Financial assets:
Impaired loans	154
Fair Value, Measurements, Nonrecurring | Owner Occupied | Commercial Real Estate
Financial assets:
Impaired loans		635
Fair Value, Measurements, Nonrecurring | 1-to-4 Family Mortgage | Residential Real Estate
Financial assets:
Impaired loans		103
Fair Value, Measurements, Nonrecurring | Significant Unobservable Inputs (Level 3)
Financial assets:
Mortgage servicing rights, net		32,070
Foreclosed real estate, net	942	2,315
Impaired loans	209	1,281
Fair Value, Measurements, Nonrecurring | Significant Unobservable Inputs (Level 3) | Commercial and Industrial
Financial assets:
Impaired loans	55	542
Fair Value, Measurements, Nonrecurring | Significant Unobservable Inputs (Level 3) | Consumer and Other
Financial assets:
Impaired loans		1
Fair Value, Measurements, Nonrecurring | Significant Unobservable Inputs (Level 3) | Non-Owner Occupied | Commercial Real Estate
Financial assets:
Impaired loans	$ 154
Fair Value, Measurements, Nonrecurring | Significant Unobservable Inputs (Level 3) | Owner Occupied | Commercial Real Estate
Financial assets:
Impaired loans		635
Fair Value, Measurements, Nonrecurring | Significant Unobservable Inputs (Level 3) | 1-to-4 Family Mortgage | Residential Real Estate
Financial assets:
Impaired loans		$ 103

Fair Value Measurements - Addit

Fair Value Measurements - Additional Information (Details) - USD ($)	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Change in fair value on available for sale of securities on recurring basis	$ 0
Mortgage Loans
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Net gains from fair value changes of mortgage loans	$ 7,606,000	$ 1,579,000

Fair Value Measurements - Infor

Fair Value Measurements - Information about Significant Unobservable Inputs (Level 3) Used in Valuation of Assets Measured at Fair Value on Nonrecurring Basis (Details) - Fair Value, Measurements, Nonrecurring - Significant Unobservable Inputs (Level 3) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2017	Dec. 31, 2016
Valuation of collateral | Minimum
Fair Value Inputs Assets Quantitative Information [Line Items]
Discount rate	0.00%	0.00%
Valuation of collateral | Maximum
Fair Value Inputs Assets Quantitative Information [Line Items]
Discount rate	30.00%	30.00%
Valuation of collateral | Impaired Loans
Fair Value Inputs Assets Quantitative Information [Line Items]
Fair value of assets	$ 209	$ 1,281
Appraised value of property less costs to sell | Minimum
Fair Value Inputs Assets Quantitative Information [Line Items]
Discount rate	0.00%	0.00%
Appraised value of property less costs to sell | Maximum
Fair Value Inputs Assets Quantitative Information [Line Items]
Discount rate	10.00%	10.00%
Appraised value of property less costs to sell | Foreclosed Assets
Fair Value Inputs Assets Quantitative Information [Line Items]
Fair value of assets	$ 942	$ 2,315
Discounted cash flows | Mortgage Servicing Rights, Net
Fair Value Inputs Assets Quantitative Information [Line Items]
Fair value of assets		$ 33,081

Fair Value Measurements - Sched

Fair Value Measurements - Schedule of Differences between Fair Value and Principal Balance for Loans Held for Sale Measured at Fair Value (Details) - USD ($)	Mar. 31, 2017	Dec. 31, 2016
Fair Value
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Mortgage loans held for sale measured at fair value	$ 365,173	$ 507,442
Aggregate Unpaid Principal Balance
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Mortgage loans held for sale measured at fair value	351,628	501,503
Difference
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Mortgage loans held for sale measured at fair value	$ 13,545	$ 5,939

Segment Reporting - Additional

Segment Reporting - Additional Information (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2017USD ($)Segment	Mar. 31, 2016USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments | Segment	2
Interest paid	$ 2,330	$ 2,361
Interest income	29,006	24,312
Mortgage Segment
Segment Reporting Information [Line Items]
Interest paid	$ 3,551	$ 2,259
Mortgage Segment | Prime Interest Rate
Segment Reporting Information [Line Items]
Warehouse line of credit interest rate	4.00%	3.50%
Banking Segment
Segment Reporting Information [Line Items]
Interest income	$ 3,551	$ 2,259

Segment Reporting - Schedule of

Segment Reporting - Schedule of Segment Financial Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Segment Reporting Information [Line Items]
Net interest income	$ 30,251	$ 25,943
Provision for loan losses	(257)	(9)
Mortgage banking income	25,080	24,503
Other noninterest income	6,007	6,532
Depreciation and amortization	1,002	1,015
Amortization of intangibles	392	552
Amortization and impairment of mortgage servicing rights		2,914
Other noninterest mortgage banking expense	22,368	16,570
Other noninterest expense	22,655	20,296
Income before income taxes	15,178	15,640
Income tax expense	5,425	1,041
Net income	9,753	14,599
Total assets	3,166,459	2,855,563	$ 3,276,881
Goodwill	46,867	46,867	$ 46,867
Banking Segment
Segment Reporting Information [Line Items]
Net interest income	29,856	26,014
Provision for loan losses	(257)	(9)
Mortgage banking income	5,666	6,147
Other noninterest income	6,007	6,532
Depreciation and amortization	864	901
Amortization of intangibles	392	552
Other noninterest mortgage banking expense	4,836	3,858
Other noninterest expense	22,655	20,296
Income before income taxes	13,039	13,095
Total assets	2,705,118	2,532,060
Goodwill	46,767	46,767
Mortgage Segment
Segment Reporting Information [Line Items]
Net interest income	395	(71)
Mortgage banking income	19,414	18,356
Depreciation and amortization	138	114
Amortization and impairment of mortgage servicing rights		2,914
Other noninterest mortgage banking expense	17,532	12,712
Income before income taxes	2,139	2,545
Total assets	461,341	323,503
Goodwill	$ 100	$ 100

Minimum Capital Requirements -

Minimum Capital Requirements - Additional Information (Details)	3 Months Ended
	Mar. 31, 2017
Banking And Thrift [Abstract]
Capital conservative buffer percentage	2.50%
Description of capital adequacy purposes	Beginning in 2016, an additional conservation buffer was added to the minimum requirements for capital adequacy purposes, subject to a three year phase-in period. The capital conservative buffer will be fully phased in January 1, 2019 at 2.5 percent.

Minimum Capital Requirements 81

Minimum Capital Requirements - Schedule of Actual and Required Capital Amounts and Ratios (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
FB Financial Corporation
Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Total Capital (to risk-weighted assets), Actual Amount	$ 350,667	$ 338,893
Total Capital (to risk-weighted assets), Actual Ratio	13.76%	13.03%
Total Capital (to risk-weighted assets), For capital adequacy purposes, Amount	$ 203,876	$ 208,069
Total Capital (to risk-weighted assets), For capital adequacy purposes, Ratio	8.00%	8.00%
Total Capital (to risk-weighted assets), Minimum Capital adequacy with capital buffer, Amount	$ 235,732	$ 224,325
Total Capital (to risk-weighted assets), Minimum Capital adequacy with capital buffer, Ratio	9.25%	8.63%
Tier 1 Capital (to risk-weighted assets), Actual Amount	$ 327,769	$ 317,146
Tier 1 Capital (to risk-weighted assets), Actual Ratio	12.87%	12.19%
Tier 1 Capital (to risk-weighted assets), For capital adequacy purposes, Amount	$ 152,806	$ 156,101
Tier 1 Capital (to risk-weighted assets), For capital adequacy purposes, Ratio	6.00%	6.00%
Tier 1 Capital (to risk-weighted assets), Minimum Capital adequacy with capital buffer, Amount	$ 184,641	$ 172,362
Tier 1 Capital (to risk-weighted assets), Minimum Capital adequacy with capital buffer, Ratio	7.25%	6.63%
Tier 1 Capital (to average assets), Actual Amount	$ 327,769	$ 317,146
Tier 1 Capital (to average assets), Actual Ratio	10.46%	10.05%
Tier 1 Capital (to average assets), For capital adequacy purposes, Amount	$ 125,342	$ 126,227
Tier 1 Capital (to average assets), For capital adequacy purposes, Ratio	4.00%	4.00%
Common Equity Tier 1 Capital (to risk-weighted assets), Actual Amount	$ 297,769	$ 287,146
Common Equity Tier 1 Capital (to risk-weighted assets), Actual Ratio	11.69%	11.04%
Common Equity Tier 1 Capital (to risk-weighted assets), For capital adequacy purposes, Amount	$ 114,625	$ 117,043
Common Equity Tier 1 Capital (to risk-weighted assets), For capital adequacy purposes, Ratio	4.50%	4.50%
Common Equity Tier 1 Capital (to risk-weighted assets), Minimum Capital adequacy with capital buffer, Amount	$ 146,465	$ 133,299
Common Equity Tier 1 Capital (to risk-weighted assets), Minimum Capital adequacy with capital buffer, Ratio	5.75%	5.13%
FirstBank
Compliance With Regulatory Capital Requirements Under Banking Regulations [Line Items]
Total Capital (to risk-weighted assets), Actual Amount	$ 316,013	$ 304,018
Total Capital (to risk-weighted assets), Actual Ratio	12.42%	11.72%
Total Capital (to risk-weighted assets), For capital adequacy purposes, Amount	$ 203,551	$ 207,521
Total Capital (to risk-weighted assets), For capital adequacy purposes, Ratio	8.00%	8.00%
Total Capital (to risk-weighted assets), Minimum Capital adequacy with capital buffer, Amount	$ 235,356	$ 223,733
Total Capital (to risk-weighted assets), Minimum Capital adequacy with capital buffer, Ratio	9.25%	8.63%
Total Capital (to risk-weighted assets), To be well capitalized under prompt corrective action provisions, Amount	$ 254,439	$ 259,401
Total Capital (to risk-weighted assets), To be well capitalized under prompt corrective action provisions, Ratio	10.00%	10.00%
Tier 1 Capital (to risk-weighted assets), Actual Amount	$ 293,115	$ 282,271
Tier 1 Capital (to risk-weighted assets), Actual Ratio	11.52%	10.88%
Tier 1 Capital (to risk-weighted assets), For capital adequacy purposes, Amount	$ 152,664	$ 155,664
Tier 1 Capital (to risk-weighted assets), For capital adequacy purposes, Ratio	6.00%	6.00%
Tier 1 Capital (to risk-weighted assets), Minimum Capital adequacy with capital buffer, Amount	$ 184,469	$ 171,879
Tier 1 Capital (to risk-weighted assets), Minimum Capital adequacy with capital buffer, Ratio	7.25%	6.63%
Tier 1 Capital (to risk-weighted assets), To be well capitalized under prompt corrective action provisions Amount	$ 152,664	$ 155,664
Tier 1 Capital (to risk-weighted assets), To be well capitalized under prompt corrective action provisions Ratio	6.00%	6.00%
Tier 1 Capital (to average assets), Actual Amount	$ 293,115	$ 282,271
Tier 1 Capital (to average assets), Actual Ratio	9.36%	8.95%
Tier 1 Capital (to average assets), For capital adequacy purposes, Amount	$ 125,263	$ 126,155
Tier 1 Capital (to average assets), For capital adequacy purposes, Ratio	4.00%	4.00%
Tier 1 Capital (to average assets), To be well capitalized under prompt corrective action provisions, Amount	$ 156,579	$ 157,693
Tier 1 Capital (to average assets), To be well capitalized under prompt corrective action provisions, Ratio	5.00%	5.00%
Common Equity Tier 1 Capital (to risk-weighted assets), Actual Amount	$ 293,115	$ 282,271
Common Equity Tier 1 Capital (to risk-weighted assets), Actual Ratio	11.52%	10.88%
Common Equity Tier 1 Capital (to risk-weighted assets), For capital adequacy purposes, Amount	$ 114,498	$ 116,748
Common Equity Tier 1 Capital (to risk-weighted assets), For capital adequacy purposes, Ratio	4.50%	4.50%
Common Equity Tier 1 Capital (to risk-weighted assets), Minimum Capital adequacy with capital buffer, Amount	$ 146,303	$ 132,963
Common Equity Tier 1 Capital (to risk-weighted assets), Minimum Capital adequacy with capital buffer, Ratio	5.75%	5.13%
Common Equity Tier 1 Capital (to risk-weighted assets), To be well capitalized under prompt corrective action provisions, Amount	$ 165,386	$ 168,636
Common Equity Tier 1 Capital (to risk-weighted assets), To be well capitalized under prompt corrective action provisions, Ratio	6.50%	6.50%

Stock-Based Compensation - Summ

Stock-Based Compensation - Summary of Vested and Unvested Restricted Stock Units Outstanding (Details) - Restricted Stock Units	3 Months Ended
	Mar. 31, 2017$ / sharesshares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Restricted Stock Units Outstanding, Balance, beginning of period | shares	1,200,848
Restricted Stock Units Outstanding, Grants | shares	73,801
Restricted Stock Units Outstanding, Released and distributed (vested) | shares	(70,687)
Restricted Stock Units Outstanding, Forfeited/expired | shares	(544)
Restricted Stock Units Outstanding, Balance, end of period | shares	1,203,418
Weighted Average Grant Date Fair Value, Balance, beginning of period | $ / shares	$ 19
Weighted Average Grant Date Fair Value, Grants | $ / shares	33.48
Weighted Average Grant Date Fair Value, Released and distributed (vested) | $ / shares	19
Weighted Average Grant Date Fair Value, Forfeited/expired | $ / shares	19
Weighted Average Grant Date Fair Value, Balance, end of period | $ / shares	$ 19.15

Stock-Based Compensation - Addi

Stock-Based Compensation - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2017	Dec. 31, 2016
Restricted Stock Units
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Fair value of restricted stock units vested and released	$ 1,343
Compensation cost related to restricted stock units	1,352
Unrecognized compensation cost related to nonvested restricted stock units	$ 16,842
Expected weighted-average period to be recognized	3 years 8 months 12 days
EBI Units
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
EBI Units remaining in equity based incentive plans for employees, units	67,470	180,447
EBI Units remaining in equity based incentive plans for employees, value	$ 2,384	$ 4,683
Employee Stock Purchase Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Maximum number of shares issuable		200,000
Purchase price percentage of first offering period		85.00%
Purchase price percentage of current offering period		95.00%
Maximum number of shares per participant		725
Maximum worth of award per participant		$ 25,000
Shares issued under plan		0
Number of shares reserved for issuance	2,479,623	2,479,623

Related Party Transactions - Sc

Related Party Transactions - Schedule of Loans Analysis to Executive Officers, Certain Management, Bank Directors and Their Affiliates (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2017USD ($)
Related Party Transactions [Abstract]
Loans outstanding, Beginning balance	$ 27,370
New loans and advances	2,065
Repayments	(1,975)
Loans outstanding, Ending balance	$ 27,460

Related Party Transactions - Ad

Related Party Transactions - Additional Information (Details) - USD ($) $ in Thousands	Sep. 15, 2016	Aug. 15, 2016	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016	Jun. 30, 2006	Aug. 26, 1999	Feb. 12, 1996
Related Party Transaction [Line Items]
Unfunded commitments			$ 0		$ 1
Deposits from related parties			155,390		150,373
Aviation Time Sharing Agreement
Related Party Transaction [Line Items]
Payments to related party			25	$ 18
Initial Public Offering
Related Party Transaction [Line Items]
Repayments of subordinated debt	$ 10,075	$ 10,075
Certain Executive Officers and Directors and Their Associates
Related Party Transaction [Line Items]
Unfunded commitments			7,099		6,838
Shareholders
Related Party Transaction [Line Items]
Unamortized leasehold improvements			153		174
Lease expense			126	$ 134
Subordinated debt						$ 6,000	$ 3,300	$ 775
Payment of interest			68
Director
Related Party Transaction [Line Items]
Amount of investment held by the company			$ 1,145		$ 1,145