Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Operating Activities
Net income	$ 23,262	$ 17,835
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for loan losses	1,500	1,500
Gains on sales of loans	(1,296)	(1,589)
Proceeds from sales of loans	45,928	54,280
Loans originated for sale	(43,972)	(53,238)
Net gains from sales/writedowns of other real estate and repossessed assets	(547)	(570)
Depreciation of premises and equipment	2,775	2,479
Amortization of intangible assets	2,169	1,825
Net gains on sale of investment securities	(19)	(579)
Net amortization of premiums and discounts on investment securities	1,493	1,373
Share-based compensation expense	749	755
Net increase in interest receivable and other assets	(921)	(9,562)
Net decrease in interest payable and other liabilities	(11,875)	(7,038)
Net cash provided by operating activities	19,246	7,471
Investment securities – available-for-sale:
Proceeds from sales	0	13,172
Proceeds from maturities, calls and principal reductions	42,925	57,449
Investment securities – held-to-maturity:
Proceeds from maturities, calls and principal reductions	8,133	7,542
Purchases	(16,965)	(72,748)
Net increase in loans	(101,915)	(20,233)
Proceeds from sales of other real estate and repossessed assets	2,901	3,693
Purchases of premises and equipment, net of disposals	(2,406)	(1,469)
Net cash used in investing activities	(67,327)	(12,594)
Financing Activities
Net increase in interest- and noninterest-bearing demand deposits and savings accounts	234,102	247,244
Net decrease in time deposits	(40,753)	(5,862)
Net decrease in securities sold under agreements to repurchase with customers and other short-term borrowings	(113,816)	(17,231)
Proceeds from long-term borrowings	50,000	0
Repayment of long-term borrowings	(18,558)	0
Cash dividends paid	(9,961)	(7,899)
Proceeds from directors’ stock plans and exercise of stock options, net of shares withheld	382	447
Cash paid for payroll taxes upon conversion of share-based awards	(730)	(658)
Net cash provided by financing activities	100,666	216,041
Net increase in cash and cash equivalents	52,585	210,918
Cash and cash equivalents at beginning of period	238,789	183,020
Cash and cash equivalents at end of period	291,374	393,938
Supplemental Disclosure of Cash Flow Information:
Interest paid	5,080	3,426
Loans transferred to other real estate and repossessed assets	1,667	3,662
Income Taxes Paid	$ 0	$ 9,800