Consolidated Statements of Cash Flows (unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Cash flows from operating activities:
Net income	$ 27,455	$ 26,331
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for loan losses	3,650	4,150
Depreciation and (accretion)	(2,913)	(5,011)
Net amortization on securities	4,865	4,699
Increase in cash surrender value of bank owned life insurance	(1,690)	(1,358)
Amortization of intangible assets	800	1,810
Share based compensation expense	1,972	1,597
Net securities gains	(260)	(449)
Increase in accrued interest receivable	(772)	(297)
Small Business Administration ("SBA") loans originated for sale	(15,523)	(7,220)
Proceeds from sale of the guaranteed portion of SBA loans	17,290	8,042
Gain on sale of the guaranteed portion of SBA loans	(1,442)	(670)
Loss on sale of loans	33
(Increase) decrease in other assets	(664)	2,468
Increase (decrease) in accrued expenses and other liabilities	3,824	(5,668)
Net cash provided by operating activities	36,625	28,424
Cash flows from investing activities:
Purchases of securities available for sale	(87,916)	(263,576)
Purchases of securities, restricted	(404,267)	(299,908)
Purchases of securities held to maturity	(3,628)	(43,489)
Proceeds from sales of securities available for sale	26,685	264,358
Redemption of securities, restricted	404,776	300,181
Maturities, calls and principal payments of securities available for sale	89,630	137,821
Maturities, calls and principal payments of securities held to maturity	36,390	23,766
Net increase in loans	(319,312)	(176,770)
Proceeds from loan sale	2,574
Proceeds from sales of other real estate owned, net		278
Purchase of bank owned life insurance		(30,000)
Purchase of premises and equipment	(2,595)	(2,500)
Net cash used in investing activities	(257,663)	(89,839)
Cash flows from financing activities:
Net increase in deposits	277,345	80,762
Net decrease in federal funds purchased	(50,000)	(20,000)
Net decrease in Federal Home Loan Bank advances	(19,733)	(27,624)
Repayment of junior subordinated debentures	(352)
Net increase in repurchase agreements	172	203
Net proceeds from issuance of common stock	721	688
Repurchase of surrendered stock from vesting of restricted stock awards	(330)	(328)
Cash dividends paid	(13,670)	(12,095)
Net cash provided by financing activities	194,153	21,606
Net decrease in cash and cash equivalents	(26,885)	(39,809)
Cash and cash equivalents at beginning of period	113,838	104,558
Cash and cash equivalents at end of period	86,953	64,749
Cash paid for:
Interest	17,660	13,690
Income tax	4,195	$ 17,082
Noncash investing and financing activities:
Conversion of junior subordinated debentures	$ 15,350