Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Cash flows from operating activities:
Net income	$ 18,922	$ 8,464
Adjustments to reconcile net income to net cash (used in) provided by operating activities:
Provision for loan losses	1,534	41
Depreciation and amortization	2,527	2,983
Current income tax receivable	2,968	(4,233)
Deferred income taxes	1,929	(609)
Net excess tax benefit on stock-based compensation	(753)	(371)
Discount accretion, net of premium amortization on securities	442	821
Loan accretion	(4,193)	(6,508)
Gain on sale of mortgages, net	(6,276)	(6,803)
Origination of loans held for sale, net of repayments	(176,105)	(219,584)
Proceeds from sales of loans held for sale	171,330	235,104
Bank-owned life insurance income	(421)	(452)
Gain on the sale of other real estate owned, net	(368)	78
Impairment on other real estate owned	596	38
Stock-based compensation	375	833
Operating lease payments	(1,406)
Acquisition-related costs		(7,957)
Increase in other assets	716	(5,630)
(Decrease) increase in other liabilities	(15,437)	14,294
Net cash provided by (used in) operating activities	(3,620)	10,509
Cash flows from investing activities:
Purchase of FHLB stock	(4,248)	(2,950)
Proceeds from redemption of FHLB stock	7,229	8,690
Proceeds from maturities of investment securities held-to-maturity	13,217	15,526
Proceeds from maturities of investment securities available-for-sale	48,328	55,152
Proceeds from sales of investment securities available-for-sale		33,202
Purchase of investment securities held-to-maturity		(40,735)
Purchase of investment securities available-for-sale		(42,199)
Net increase (decrease) in loans	(159,027)	9,135
Purchases of premises and equipment, net	(1,688)	(1,905)
Proceeds from sales of other real estate owned	1,262	36
Net cash activity from acquisition		68,984
Net cash (used in) provided by investing activities	(94,927)	102,936
Cash flows from financing activities:
Net increase (decrease) in deposits	178,826	(160)
(Decrease) increase in repurchase agreements	(6,504)	10,724
Advances from FHLB	319,041
FHLB repayments	(392,280)	(85,605)
Issuance of stock under purchase and equity compensation plans	(1,646)	(517)
Proceeds from exercise of stock options	2,221	4,360
Payment of dividends	(5,409)	(2,741)
Net cash provided by (used in) financing activities	94,249	(73,939)
(Decrease) increase in cash, cash equivalents and restricted cash	(4,298)	39,506
Cash, cash equivalents and restricted cash at beginning of the year	119,556	257,364
Cash, cash equivalents and restricted cash at end of period	115,258	296,870
Supplemental disclosure of cash flow information during the period:
Cash paid for interest	6,539	3,723
Net tax (payments) refunds	(86)	164
Supplemental schedule of non-cash activities:
Loans transferred to other real estate owned at fair value	288	127
Decrease in loans purchased but not settled	(7,974)	(15,068)
Loans transferred from loans held for sale to loans	198	878
Lease right-of-use assets obtained in exchange for operating lease liabilities	$ 30,474
Treasury stock reissued for acquisition		$ 110,213