Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
CASH FLOWS FROM OPERATING ACTIVITIES:
NET INCOME	$ 47,851	$ 39,405
Adjustments to reconcile net income to net cash provided by operating activities:
Net amortization of premiums, discounts and deferred loan fees and costs	3,548	3,763
Depreciation and amortization	4,114	3,272
Amortization of intangible assets	452	489
Provision for loan and lease losses	3,822	4,872
Loans originated for sale	(35,270)	(42,575)
Proceeds from sales of loans held for sale	34,932	43,444
Gains on sales of securities	0	(2,524)
Change in market value of equity securities	366	0
Gains on proceeds from bank owned life insurance policies	(421)	(45)
Gains on sales of loans held for sale	(546)	(1,347)
Gains on other real estate and other repossessed assets	(98)	(527)
Losses (gains) on sales of premises and equipment	3	(850)
Long-term debt prepayment penalty	0	2,828
Stock-based compensation	1,930	1,982
Deferred tax benefit	(1,263)	0
Excess tax benefits	313	582
Increase in other assets	(1,438)	(5,780)
Increase in other liabilities	8,105	198
NET CASH PROVIDED BY OPERATING ACTIVITIES	66,400	47,187
CASH FLOWS FROM INVESTING ACTIVITIES:
Proceeds from repayments and maturities of available for sale securities	68,240	68,852
Proceeds from repayments and maturities of held to maturity securities	18,229	33,345
Proceeds from sales of equity securities	2,155	0
Proceeds from sales of available for sale securities	0	4,500
Purchase of available for sale securities	(68,845)	(113,770)
Purchase of held to maturity securities	(37,655)	(21,157)
Purchase of equity securities	(469)	0
Purchase of bank owned life insurance	0	(33,000)
Death benefit proceeds from bank owned life insurance policy	755	148
Proceeds from redemptions of Federal Home Loan Bank stock	5,716	11,942
Purchases of Federal Home Loan Bank stock	(6,598)	(9,626)
Net increase in loans and leases	(181,561)	(226,022)
Proceeds from sales of other real estate and repossessed assets	1,795	3,972
Proceeds from dispositions and sales of premises and equipment	61	1,638
Purchases of premises and equipment	(3,899)	(2,070)
NET CASH USED IN INVESTING ACTIVITIES	(202,076)	(281,248)
CASH FLOWS FROM FINANCING ACTIVITIES:
Net increase in deposits	274,029	264,654
(Decrease) increase in federal funds purchased and securities sold under agreements to repurchase	(77,538)	77,606
Proceeds from other borrowings	39,437	276,212
Repayments of other borrowings	(46,700)	(342,757)
Exercise of stock options	307	313
Retirement of restricted stock	(759)	(773)
Dividends paid	(15,797)	(14,078)
NET CASH PROVIDED BY FINANCING ACTIVITIES	172,979	261,177
Net increase in cash and cash equivalents	37,303	27,116
Cash and cash equivalents, beginning of period	142,933	175,801
CASH AND CASH EQUIVALENTS, END OF PERIOD	180,236	202,917
Supplemental schedule of non-cash investing and financing activities
Cash paid during the period for income taxes	4,614	18,908
Cash paid during the period for interest	25,748	18,649
Transfer of loans and leases into other repossessed assets and other real estate owned	$ 3,608	$ 3,542