Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
OPERATING ACTIVITIES
Net income	$ 14,033	$ 12,330
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for loan losses	289	2,307
Provision for unfunded loan commitments	(57)	753
Depreciation and amortization	1,115	1,590
Net amortization of discounts and premiums	966	861
Stock-based compensation expense	135	117
Securities gains, net	(1)	(2)
Net gain on sale of merchant card servicing business	0	(3,093)
Tax expense from stock-based compensation	0	35
Mortgage loans originated for sale	(4,897)	(17,742)
Proceeds from the sale of loans	5,922	37,661
Gain on the sale of loans, net	(22)	(329)
Net increase in interest receivable	(543)	(776)
Net decrease in interest payable	(284)	(1,094)
Net decrease in other assets	3,648	1,865
Net increase (decrease) in other liabilities	2,061	(20,029)
Net Cash Provided by Operating Activities	22,365	14,454
INVESTING ACTIVITIES
Purchases of securities available-for-sale	(60,559)	(33,302)
Proceeds from maturities, prepayments and calls of securities available-for-sale	21,598	13,426
Proceeds from sales of securities available-for-sale	0	94
Net proceeds from the redemption of Federal Home Loan Bank stock	1,666	2,129
Net increase in loans	(62,749)	(39,284)
Purchases of premises and equipment	(457)	(652)
Proceeds from the sale of premises and equipment	64	142
Proceeds from the sale of merchant card servicing business	0	4,750
Net Cash Used in Investing Activities	(100,437)	(52,697)
FINANCING ACTIVITIES
Net increase (decrease) in core deposits	157,874	(28,866)
Net increase in certificates of deposit	38,061	28,808
Net increase in securities sold under repurchase agreements	4,587	1,775
Net decrease in short-term borrowings	(40,000)	(25,000)
Repayments of long-term borrowings	(584)	(10,566)
Treasury shares (purchased) sold-net	(161)	0
Cash dividends paid to common shareholders	(4,758)	(4,460)
Tax expense from stock-based compensation	0	(35)
Net Cash Provided by (Used in) Financing Activities	155,019	(38,344)
Net increase (decrease) in cash and cash equivalents	76,947	(76,587)
Cash and cash equivalents at beginning of period	108,356	337,711
Cash and Cash Equivalents at End of Period	185,303	261,124
Supplemental Disclosures
Interest paid	3,358	5,268
Income taxes paid, net of refunds	0	(45)
Transfers of loans to other real estate owned	$ 186	$ 126