Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Cash flows from operating activities:
Net income	$ 24,698	$ 13,069
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Provision for loan losses	9,700	22,369
Depreciation and amortization	9,862	10,864
Current income tax receivable	570	3,310
Deferred income taxes	2,116	6,846
Net excess tax (benefit) deficit on stock-based compensation	(3,442)	86
Discount accretion, net of premium amortization	1,953	2,352
Loan Accretion	(18,936)	(27,939)
Gain on sale of mortgage loans, net	(1,716)	(2,251)
Origination of loans held for sale, net of repayments	(66,333)	(79,747)
Proceeds from sales of loans held for sale	75,619	71,756
Bank-owned life insurance income	(1,417)	(1,378)
Gain on the sale of other real estate owned, net	(2,254)	(4,120)
Impairment on other real estate owned	766	262
Loss (gain) on sale of fixed assets	33	(1,840)
Gain on banking center divestitures	(2,886)
Stock-based compensation	2,771	2,692
(Increase) decrease in other assets	(2,299)	(6,892)
(Decrease) increase in other liabilities	9,917	17,747
Net cash provided by (used in) operating activities	38,722	27,186
Cash flows from investing activities:
Purchase of FHLB stock	(7,377)	(1,859)
Proceeds from redemption of FHLB stock	6,789	7,051
Proceeds from redemption of FRB stock		4,964
Proceeds from maturities of investment securities held-to-maturity	55,083	69,218
Proceeds from maturities of investment securities available-for-sale	171,326	207,413
Purchase of investment securities available-for-sale	(98,503)	(4,872)
Net increase in loans	(273,127)	(239,203)
Sales (purchases) of premises and equipment, net	(1,769)	1,328
Purchase of bank-owned life insurance		(10,344)
Proceeds from sales of loans	33,813	9,231
Proceeds from sales of other real estate owned	5,580	8,227
Net cash provided by (used in) investing activities	(108,185)	51,154
Cash flows from financing activities:
Net increase (decrease) in deposits	80,579	(15,670)
Increase (decrease) in repurchase agreements	803	(23,216)
Advances from FHLB	263,129	71,359
FHLB payoffs	(172,679)	(60,000)
Issuance of stock under purchase and equity compensation plans	(7,125)	(322)
Proceeds from exercise of stock options	78
Payment of dividends	(6,898)	(4,296)
Repurchase of shares		(87,310)
Net cash proivded by (used in) financing activities	157,887	(119,455)
Increase (decrease) in cash and cash equivalents	88,424	(41,115)
Cash and cash equivalents at beginning of the year	152,736	166,092
Cash and cash equivalents at end of year	241,160	124,977
Supplemental disclosure of cash flow information during the period:
Cash paid for interest	11,437	9,336
Net tax (refunds) payments	33	(2,152)
Supplemental schedule of non-cash investing activities:
Loans transferred to other real estate owned at fair value	760	4,755
Loans purchased but not settled	6,554	$ 11,537
Transfer of Loans Held-for-sale to Portfolio Loans	$ 4,406