Consolidated Statements of Cash Flows (Unaudited) $ in Thousands	9 Months Ended
	Sep. 30, 2015 USD ($)	Sep. 30, 2014 USD ($)
CASH FLOWS FROM OPERATING ACTIVITIES:
Net Income	$ 45,505	$ 43,867
Adjustments to reconcile net income to net cash provided by operating activities
Depreciation and amortization	9,327	9,182
Provision for loan losses	1,000	8,653
Deferred income tax expense	5,372	459
Net (gain) loss on sale of securities	315	(138)
Net loss on fixed assets	213	505
Gain (Loss) on Sale of Derivatives	0	1,122
Net loss on other real estate owned and foreclosed assets	1,070	361
Realized gain on sale leaseback transaction	(775)	(775)
Stock based compensation	2,028	2,075
Excess tax benefit related to equity award activity	(776)	(438)
Increase in cash surrender value of life insurance policies	(2,685)	(2,213)
Gain Realized on Life Insurance Policies	0	(1,964)
Change in fair value on loans held for sale	(3)	(1)
Net change in
Trading assets	(454)	0
Loans held for sale	(4,585)	(3,697)
Other assets	4,314	11,156
Increase (Decrease) in Other Operating Liabilities	2,209	(792)
Total adjustments	16,570	23,495
Net cash provided by operating activities	62,075	67,362
Cash flows used in investing activities
Proceeds from sales of securities available for sale	14,344	945
Proceeds from maturities and principal repayments of securities available for sale	60,507	35,936
Purchases of securities available for sale	(49,086)	(36,577)
Proceeds from maturities and principal repayments of securities held to maturity	44,706	32,864
Purchases of securities held to maturity	(117,286)	(54,681)
Redemption of Federal Home Loan Bank stock		6,693
Investments in low income housing projects	(14,817)	(13,660)
Purchases of life insurance policies	(115)	(10,116)
Proceeds from life insurance policies	0	6,309
Net increase in loans	(65,650)	(242,207)
Cash used in business combinations, net of cash acquired	(13,448)	0
Purchases of bank premises and equipment	(6,846)	(5,987)
Proceeds from the sale of bank premises and equipment	1,233	1,064
Payments on early termination of hedging relationship		(1,122)
Proceeds from the sale of other real estate owned and foreclosed assets	7,378	4,269
Net capital improvements to other real estate owned	(961)	(1,772)
Net cash used in investing activities	(140,041)	(278,042)
Cash flows provided by financing activities
Net decrease in time deposits	(54,293)	(71,164)
Net increase in other deposits	326,440	387,180
Net repayments of short-term Federal Home Loan Bank borrowings	(10,000)	(75,000)
Repayments of long-term Federal Home Loan Bank borrowings	(7,000)	(5,000)
Net increase (decrease) in customer repurchase agreements	(9,441)	3,904
Increase (Decrease) in Payables under Repurchase Agreements	(50,000)	0
Net decrease in other short term borrowings		(5,000)
Repayments of subordinated debentures	(30,000)	0
Net proceeds from exercise of stock options	1,365	583
Restricted stock awards issued, net of awards surrendered	(645)	(643)
Excess tax benefit from stock based compensation	776	438
Tax benefit from deferred compensation distribution	172	134
Proceeds from shares issued under direct stock purchase plan	2,023	959
Common dividends paid	(19,357)	(16,704)
Net cash provided by financing activities	150,040	219,687
Net increase in cash and cash equivalents	72,074	9,007
Cash and cash equivalents at beginning of year	178,254	216,325
Cash and cash equivalents at end of period	250,328	225,332
Supplemental schedule of noncash investing and financing activities
Real Estate Owned, Transfer from Real Estate Owned	2,134	5,039
Other net transfers to other real estate owned	142
Net increase in capital commitments relating to low income housing project investments	2,085	27,839
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