Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
CASH FLOWS FROM OPERATING ACTIVITIES:
Net Income	$ 26,910	$ 28,129
Adjustments to reconcile net income to net cash provided by operating activities
Depreciation and amortization	6,388	6,153
Provision for loan losses	200	6,752
Deferred income tax expense	5,372	563
Net (gain) loss on sale of securities	315	(71)
Net loss on fixed assets	110	390
Gain (Loss) on Sale of Derivatives	0	(1,122)
Net loss on other real estate owned and foreclosed assets	630	232
Realized gain on sale leaseback transaction	(517)	(517)
Stock based compensation	1,362	1,496
Excess tax benefit related to equity award activity	(546)	(449)
Increase in cash surrender value of life insurance policies	(1,727)	(1,443)
Gain Realized on Life Insurance Policies	0	(1,964)
Change in fair value on loans held for sale	(184)	(225)
Net change in:
Trading assets	(489)	0
Loans held for sale	(3,656)	(7,018)
Other assets	16,057	1,572
Increase (Decrease) in Other Operating Liabilities	(12,353)	(4,154)
Total adjustments	10,962	2,439
Net cash provided by operating activities	37,872	30,568
Cash flows used in investing activities
Proceeds from sales of securities available for sale	14,344	673
Proceeds from maturities and principal repayments of securities available for sale	34,849	23,510
Purchases of securities available for sale	(34,193)	(868)
Proceeds from maturities and principal repayments of securities held to maturity	29,030	20,216
Purchases of securities held to maturity	(81,859)	(43,493)
Redemption of Federal Home Loan Bank stock		(2,576)
Investments in low income housing projects	(12,272)	(3,748)
Purchases of life insurance policies	(100)	(101)
Proceeds from life insurance policies	0	5,735
Net increase in loans	(1,137)	(177,486)
Cash used in business combinations, net of cash acquired	(13,448)	0
Purchases of bank premises and equipment	(4,537)	(3,915)
Proceeds from the sale of bank premises and equipment	347	759
Payments on early termination of hedging relationship		(1,122)
Proceeds from the sale of other real estate owned and foreclosed assets	3,879	2,810
Net capital improvements to other real estate owned	(765)	(875)
Net cash used in investing activities	(65,862)	(175,329)
Cash flows provided by financing activities
Net decrease in time deposits	(39,853)	(40,770)
Net increase in other deposits	367,667	352,513
Net repayments of short-term Federal Home Loan Bank borrowings	(10,000)	(75,000)
Repayments of long-term Federal Home Loan Bank borrowings	(3,000)	(5,000)
Net decrease in customer repurchase agreements	(28,451)	(17,522)
Net decrease in other short term borrowings		(5,000)
Repayments of subordinated debentures	(30,000)	0
Net proceeds from exercise of stock options	311	468
Restricted stock awards issued, net of awards surrendered	(645)	(642)
Excess tax benefit from stock based compensation	546	449
Tax benefit from deferred compensation distribution	165	128
Proceeds from shares issued under direct stock purchase plan	1,327	643
Common dividends paid	(12,555)	(10,967)
Net cash provided by financing activities	245,512	199,300
Net increase in cash and cash equivalents	217,522	54,539
Cash and cash equivalents at beginning of year	178,254	216,325
Cash and cash equivalents at end of period	395,776	270,864
Supplemental schedule of noncash investing and financing activities
Real Estate Owned, Transfer from Real Estate Owned	983	4,257
Other net transfers to other real estate owned	142
Increase (decrease) in capital commitments relating to low income housing project investments	(1,055)	25,840
Common stock issued for acquisition	86,415	$ 0
Fair value of assets acquired, net of cash acquired	598,376
Fair value of liabilities assumed	$ 498,513