CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Cash flows from operating activities:      
Net income $ 31,533 $ 24,407 $ 10,816
Adjustments to reconcile net income to net cash provided by operating activities:      
Provision for loan losses 5,591 11,127 92
Depreciation on premises and equipment 5,080 5,139 3,464
Amortization of intangible assets 2,147 2,460 2,115
FDIC loss-sharing expense 1,661 566 3,491
Amortization of restricted stock awards 555 517 468
Compensation expense for stock option grants 492 413 240
Increase in cash surrender value of life insurance (1,497) (1,474) (1,065)
Provision for deferred income taxes 14,541 6,474 4,064
Investment securities amortization, net 1,133 1,202 857
Other-than-temporary impairment on investment securities 824 461 190
Gain on sales of investment securities, net (14,702) (193) (77)
Gain on sales of other real estate owned (113) (600) (761)
Write-down of other real estate owned 247 114 1,530
Origination of loans held for sale (1,176,716) (943,844) (88,444)
Proceeds from sales of loans held for sale 1,184,739 1,002,770 88,562
Gain on loans sold and held for sale (35,127) (34,017) (1,994)
Amortization of mortgage servicing rights 6,141 5,015 421
Impairment (recapture) of mortgage servicing rights 3,135 448 (83)
Gain on sales of other assets     (3,224)
Net change in operating assets and liabilities:      
Accrued interest receivable (505) 945 646
Accrued interest payable 66 (88) 50
Accrued income taxes receivable / payable 2,892 (4,775) (3,048)
Other assets (6,399) (2,774) 1,797
Other liabilities (175) (648) 1,391
Net cash provided by operating activities 25,543 73,645 21,498
Investment securities available for sale:      
Purchases (198,680) (83,668) (30,405)
Sales 115,999 62,751 24,958
Maturities and payments 74,948 29,989 30,594
Investment securities held to maturity:      
Purchases (2,617) (809) (8,509)
Maturities 11,019 14,225 15,283
Net increase in loans (335,943) (209,109) (94,858)
Purchases of premises and equipment (2,071) (6,008) (2,920)
Purchase of bank-owned life insurance (20,000) (20,000)  
Purchases of nonmarketable equity securities (4,103) (5,311)  
Sales of nonmarketable equity securities 90 1,918  
Proceeds from sales of other real estate owned 6,199 6,617 10,928
Net cash (paid) acquired in acquisitions (5,191) (20,053) 85,021
Net cash (used in) provided by investing activities (360,350) (229,458) 30,092
Cash flows from financing activities:      
Net increase in deposits 36,718 217,015 2,674
Net increase (decrease) in short-term borrowings 24,019 (22,176) 25,324
Proceeds from FHLB borrowings 1,015,000 47,500 112,500
Payments made on FHLB borrowings (817,500) (67,500) (117,500)
Proceeds from other borrowings     14,000
Payments made on other borrowings   (14,177) (7,857)
Proceeds from issuance of subordinated debt, net of issuance costs   55,325  
Payments made on subordinated debt (8,000)    
Cash dividends paid on preferred stock     (4,254)
Cash dividends paid on common stock (9,853) (7,692) (3,512)
Proceeds from issuance of common stock in initial public offering, net of issuance costs 71,475    
Proceeds from issuance of common stock under employee benefit plans 1,318 470 215
Cash distributions to noncontrolling interests (129) (380)  
Net cash provided by (used in) financing activities 313,048 208,385 21,590
Net (decrease) increase in cash and cash equivalents (21,759) 52,572 73,180
Cash and cash equivalents:      
Beginning of year 212,475 159,903 86,723
End of year 190,716 212,475 159,903
Cash payments for:      
Interest paid on deposits and borrowed funds 15,929 12,977 8,493
Income tax paid 1,073 8,541 4,684
Supplemental disclosures of noncash investing and financing activities:      
Transfer of loans to other real estate owned $ 4,839 $ 3,533 6,509
Issuance of common stock for preferred dividends     2,903
Cash portion of merger consideration accrued for at year-end     20,053
Private Placement      
Supplemental disclosures of noncash investing and financing activities:      
Stock Issued During Period, Value, New Issues     16,156
Series C preferred stock      
Supplemental disclosures of noncash investing and financing activities:      
Conversion of preferred stock into common stock     23,600
Series D preferred stock      
Supplemental disclosures of noncash investing and financing activities:      
Conversion of preferred stock into common stock     22,470
Series E preferred stock      
Supplemental disclosures of noncash investing and financing activities:      
Conversion of preferred stock into common stock     6,300
Series F preferred stock      
Supplemental disclosures of noncash investing and financing activities:      
Conversion of preferred stock into common stock     $ 5,000