CONSOLIDATED CONDENSED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Cash Flow From Operating Activities:
Net income	$ 17,693	$ 16,172
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for loan losses	550
Depreciation and amortization	1,835	$ 1,534
Change in deferred taxes	3,324	3,643
Share-based compensation	593	517
Tax benefit from stock options exercised	(3)	(14)
Loans originated for sale	(87,689)	(69,384)
Proceeds from sales of loans	93,955	70,227
Gains on sales of securities available for sale	(997)	(1,025)
Change in interest receivable	1,579	427
Change in interest payable	818	484
Other adjustments	(6,862)	(4,883)
Net cash provided by operating activities	24,796	17,698
Cash Flows from Investing Activities:
Net change in interest-bearing deposits	(45,138)	(35,708)
Purchases of:
Securities available for sale	(32,632)	(20,193)
Securities held to maturity	(35,086)	(39,542)
Proceeds from sales of securities available for sale	69,623	38,198
Proceeds from maturities of:
Securities available for sale	13,137	14,887
Securities held to maturity	19,134	18,685
Change in Federal Reserve and Federal Home Loan Bank stock	80	80
Net change in loans	(20,235)	(43,939)
Proceeds from the sale of other real estate owned	2,084	2,799
Other adjustments	(1,226)	(1,311)
Net cash used in investing activities	(30,259)	(66,044)
Net change in :
Demand and savings deposits	44,902	(4,643)
Certificates of deposit and other time deposits	(24,650)	12,024
Borrowings	110,060	59,484
Repayment of borrowings	(136,321)	(44,319)
Cash dividends on common stock	(4,509)	(3,049)
Stock issued under employee benefit plans	119	129
Stock issued under dividend reinvestment and stock purchase plans	165	135
Stock options exercised	73	355
Tax benefit from stock options exercised	3	14
Stock redeemed	(811)	(1,157)
Net cash provided by (used in) financing activities	(10,969)	18,973
Net Change in Cash and Cash Equivalents	(16,432)	(29,373)
Cash and Cash Equivalents at beginning of period	102,170	118,616
Cash and Cash Equivalents at end of period	85,738	89,243
Additional cash flow information:
Interest paid	5,954	5,484
Income tax paid	3,500	500
Loans transferred to other real estate owned	32	$ 2,109
Fixed assets transferred to other real estate owned	360
Non-cash investing activities using trade date accounting	$ 19,935	$ 20,424