Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 45,451	$ 29,637
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	16,325	13,041
Provision for loan and lease losses	10,526	11,635
Net amortization of premium on securities	21,339	18,993
Securities gains, net	(9,230)	(2,460)
Decrease in trading account securities	0	1,801
Stock based compensation	2,635	2,683
Write downs and losses on repossessed assets, net	1,686	1,365
Loans originated for sale	(1,087,510)	(694,622)
Proceeds on sales of loans held for sale	1,083,285	665,837
Net gains on sale of loans held for sale	(27,102)	(17,604)
(Increase) decrease in accrued interest receivable	170	(603)
Increase in prepaid expenses	(1,021)	(857)
Decrease in accrued interest payable	(177)	(1,176)
Capitalization of servicing rights	(11,766)	(5,955)
Write downs and losses on sales of assets, net	897	624
Other, net	8,137	6,772
NET CASH PROVIDED BY OPERATING ACTIVITIES	53,645	29,111
CASH FLOWS FROM INVESTING ACTIVITIES:
Proceeds from the sale of securities available for sale	877,077	699,830
Proceeds from the sale of other investments	12,917	10,178
Proceeds from the sale of time deposits in other financial institutions	2,925	0
Proceeds from the maturity of and principal paydowns on securities available for sale	124,084	104,089
Proceeds from the maturity of and principal paydowns on securities held to maturity	1,338	2,217
Proceeds from the maturity of and principal paydowns on time deposits in other financial institutions	250	750
Proceeds from the maturity of and principal paydowns on other investments	619	0
Purchase of securities available for sale	(774,657)	(543,407)
Purchase of securities held to maturity	0	(20,944)
Purchase of other investments	(9,833)	(8,849)
Net increase in loans and leases	(225,356)	(317,604)
Purchase of bank owned life insurance policies	(1,100)	0
Capital expenditures	(4,982)	(5,738)
Net cash and cash equivalents received in acquisition	(6,861)	0
Proceeds from the sale of equipment	1,108	175
Proceeds on sale of OREO and other repossessed assets	6,328	14,578
NET CASH PROVIDED (USED) BY INVESTING ACTIVITIES	3,857	(64,725)
CASH FLOWS FROM FINANCING ACTIVITIES:
Net increase in demand deposits and savings accounts	118,311	100,466
Net decrease in time deposit accounts	(26,326)	(40,246)
Net decrease in short-term borrowings	(25,901)	(31,451)
Proceeds from short term FHLB advances	276,100	230,000
Repayments of short term FHLB advances	(270,000)	(259,000)
Proceeds from other borrowings	29,000	5,000
Repayments of other borrowings	(134,803)	(20,596)
Purchase of treasury stock	(2,856)	(625)
Proceeds from issuance of common stock	2,330	662
Excess tax benefits on exercised stock options	671	119
Dividends paid	(6,794)	(6,149)
NET CASH USED BY FINANCING ACTIVITIES	(40,268)	(21,820)
Net increase (decrease) in cash and cash equivalents	17,234	(57,434)
Cash and cash equivalents at beginning of year	73,871	125,270
CASH AND CASH EQUIVALENTS AT END OF PERIOD	91,105
Supplemental disclosures:
Cash paid for income/franchise taxes	7,305	2,632
Cash paid for interest	24,690	26,925
Loans transferred to OREO	5,206	6,528
Purchases of securities available for sale, accrued, not paid	3,523	2,089
Stock consideration granted for acquisition	$ 53,052	$ 0