Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
Operating Activities
Net Income	$ 32,223	$ 33,219
Adjustment to reconcile net income to net cash provided by operating activities:
Provision for credit losses	18,011	14,838
Deferred tax expense	9,441	2,507
Depreciation and amortization	6,899	5,736
Net gains on securities and other assets	(892)	(1,392)
Net amortization of premiums and discounts on securities	278	1,075
Net amortization of premiums and discounts on long term debt	(88)	(84)
Income from increase in cash surrender value of bank owned life insurance	(4,219)	(4,369)
Decrease in interest receivable	1,807	1,426
Decrease in interest payable	(1,297)	(2,087)
(Decrease) increase in income taxes payable	(1,093)	6,294
Increase (Decrease) in FDIC insurance	9,205	3,500
Other-net	(2,434)	(6,067)
Net cash provided by operating activities	67,841	54,596
Investing Activities
Proceeds from sales	671	0
Proceeds from maturities and redemptions	258,097	410,909
Purchases	(410,435)	(395,337)
Purchases of FHLB stock	(15,378)	0
Proceeds from the redemption of FHLB stock	9,902	7,317
Proceeds from bank owned life insurance	2,092	2,071
Proceeds from sale of loans	20,760	15,981
Proceeds from sales of other assets	10,880	15,301
Net increase in loans	(94,250)	(185,018)
Purchases of premises and equipment	(4,576)	(6,468)
Net cash used in investing activities	(222,237)	(135,244)
Financing Activities
Net decrease in federal funds purchased	(23,000)	(54,800)
Net increase in other short-term borrowings	218,401	203,792
Net increase (decrease) in deposits	59,945	(10,206)
Repayments of other long-term debt	(29,883)	(25,358)
Repayments of subordinated debentures	(34,702)	0
Discount on dividend reinvestment plan purchases	(84)	(67)
Dividends paid	(16,630)	(13,633)
Proceeds from reissuance of treasury stock	176	617
Purchase of treasury stock	(29,553)	(9,112)
Tax benefit of stock options exercised	0	1
Net cash provided by financing activities	144,670	91,234
Net (decrease) increase in cash and cash equivalents	(9,726)	10,586
Cash and cash equivalents at January 1	102,982	78,478
September 30, 2013	$ 93,256	$ 89,064