Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
OPERATING ACTIVITIES
Net income	$ 43,414	$ 38,680
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for loan losses	608	6,749
Provision for unfunded loan commitments	(262)	143
Depreciation and amortization	3,510	4,320
Net amortization of discounts and premiums	2,800	2,757
Stock-based compensation expense	594	508
Securities gains, net	(41)	(5)
Net gain on sale of merchant card servicing business	0	(3,093)
Tax expense from stock-based compensation	0	47
Mortgage loans originated for sale	(28,652)	(55,702)
Proceeds from the sale of loans	27,894	77,540
Gain on the sale of loans, net	(232)	(776)
Net increase in interest receivable	(604)	(21)
Net decrease in interest payable	(423)	(2,230)
Net decrease in other assets	10,749	21,543
Net decrease in other liabilities	(897)	(22,543)
Net Cash Provided by Operating Activities	58,458	67,917
INVESTING ACTIVITIES
Purchases of securities available-for-sale	(149,268)	(102,419)
Proceeds from maturities, prepayments and calls of securities available-for-sale	46,662	50,177
Proceeds from sales of securities available-for-sale	1,418	94
Net (payments for) proceeds from Federal Home Loan Bank stock	(5,366)	265
Net increase in loans	(244,836)	(177,433)
Proceeds from sale of loans not originated for resale	5,408	0
Purchases of premises and equipment	(3,220)	(2,599)
Proceeds from the sale of premises and equipment	98	625
Proceeds from the sale of merchant card servicing business	0	4,750
Net Cash Used in Investing Activities	(349,104)	(226,540)
FINANCING ACTIVITIES
Net increase in core deposits	176,182	41,570
Net increase in certificates of deposit	52,491	13,785
Net decrease in securities sold under repurchase agreements	(10,763)	(29,292)
Net increase in short-term borrowings	125,000	100,000
Repayments of long-term borrowings	(1,768)	(11,711)
Repayment of junior subordinated debt	0	(45,000)
Treasury shares issued-net	(163)	(86)
Cash dividends paid to common shareholders	(14,858)	(13,379)
Tax expense from stock-based compensation	0	(47)
Net Cash Provided by Financing Activities	326,121	55,840
Net increase (decrease) in cash and cash equivalents	35,475	(102,783)
Cash and cash equivalents at beginning of period	108,356	337,711
Cash and Cash Equivalents at End of Period	143,831	234,928
Supplemental Disclosures
Loans transferred to held for sale	1,300	0
Interest paid	9,590	13,668
Income taxes paid, net of refunds	12,900	8,130
Transfers of loans to other real estate owned	$ 430	$ 493