CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2019	Mar. 31, 2018
Cash flows from operating activities
Net income		$ 11,635	$ 4,251
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization of premises and equipment		814	775
Provision for loan losses		4,500	17,800
Amortization of intangibles		364	169
Net accretion of loans		(963)	(179)
Accretion on bank premises		(21)	(16)
Accretion on deposits		(328)	(15)
Amortization (accretion) on borrowings, net		58	(45)
Stock-based compensation		828	(370)
Gains on sales of securities available-for-sale, net	[1]	(8)
(Gains) losses on equity securities, net		(103)	121
Gains on sale of loans held-for-sale, net		(19)	(17)
Loans originated for resale		(1,497)	(1,045)
Proceeds from sale of loans held-for-sale		1,148	1,145
Increase in cash surrender value of bank owned life insurance		(822)	(189)
Amortization of premiums and accretion of discounts on securities available-for-sale		683	1,045
Amortization of subordinated debt issuance costs		82	86
Increase in accrued interest receivable		(550)	(550)
Net change in operating leases		1,408
Decrease (increase) in other assets		3,723	(2,269)
Decrease in other liabilities		(7,933)	(464)
Net cash provided by operating activities		12,999	20,233
Securities available-for-sale:
Purchases		(107,405)	(46,333)
Sales		94,075
Maturities, calls and principal repayments		35,371	39,503
Net purchases of restricted investment in bank stocks		(591)	(1,125)
Payments on loans held-for-sale			112
Net increase in loans		(70,278)	(69,837)
Purchases of premises and equipment		(257)	(139)
Cash and cash equivalents acquired in acquisition		13,741
Net cash used in investing activities		(35,344)	(77,819)
Cash flows from financing activities
Net increase (decrease) in deposits		86,124	(45,526)
Increase in subordinated debentures			73,525
Advances of Federal Home Loan Bank ("FHLB") borrowings		420,000	435,000
Repayments of FHLB borrowings		(480,833)	(410,000)
Cash dividends paid on common stock		(2,657)	(2,410)
Repurchase of treasury stock		(250)
Proceeds from exercise of stock options		143	202
Net cash provided by financing activities		22,527	50,791
Net change in cash and cash equivalents		182	(6,795)
Cash and cash equivalents at beginning of period		172,366	149,582
Cash and cash equivalents at end of period		172,548	142,787
Cash payments for:
Interest paid on deposits and borrowings		22,340	10,927
Income taxes			1,223
Investing:
Transfer of loans to other real estate owned			538
Transfer of loans from held-for-investment to held-for-sale			24,236
Business combination:
Fair value of assets acquired, net of cash and cash equivalents		534,166
Fair value of liabilities assumed		$ 488,475

[1] Not within scope of ASC 606