CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
CASH FLOWS FROM OPERATING ACTIVITIES
Interest and dividends received	$ 59,834	$ 66,789
Service charges and other fees received	8,905	8,030
Interest paid	(4,343)	(7,504)
Cash paid to vendors and employees	(34,057)	(34,081)
Income taxes paid	(22,200)
Proceeds from FDIC loss share agreement	187	1,316
Net cash provided by operating activities	8,326	34,550
CASH FLOWS FROM INVESTING ACTIVITIES
Proceeds from redemption of FHLB stock	5,670	3,467
Proceeds from sale of investment securities	99,155
Proceeds from repayment of investment securities	136,939	129,203
Proceeds from maturity of investment securities	6,533	36,397
Purchases of investment securities	(197,690)	(360,846)
Net decrease in loan and lease finance receivables	83,023	52,869
Proceeds from sales of premises and equipment	5	25
Purchase of premises and equipment	(1,059)	(711)
Proceeds from sales of other real estate owned	3,443	6,507
Net cash provided by/(used in) investing activities	136,019	(133,089)
CASH FLOWS FROM FINANCING ACTIVITIES
Net (decrease)/increase in transaction deposits	(85,560)	115,807
Net decrease in time deposits	(2,266)	(40,248)
Repayment of junior subordinated debentures	(20,619)	(6,805)
Net decrease in other borrowings	(26,000)
Net increase/(decrease) in customer repurchase agreements	26,871	(31,802)
Cash dividends on common stock		(8,903)
Repurchase of common stock	(24)
Proceeds from exercise of stock options	95	1,355
Tax benefit related to exercise of stock options	5	110
Net cash (used in)/provided by financing activities	(107,498)	29,514
NET INCREASE/(DECREASE) IN CASH AND CASH EQUIVALENTS	36,847	(69,025)
CASH AND CASH EQUIVALENTS, beginning of period	98,431	345,343
CASH AND CASH EQUIVALENTS, end of period	135,278	276,318
RECONCILIATION OF NET EARNINGS TO NET CASH PROVIDED BY OPERATING ACTIVITIES
Net earnings	21,615	22,268
Adjustments to reconcile net earnings to net cash provided by operating activities:
Gain on sale of investment securities	(2,094)
Loss on sale of premises and equipment, net	6
Gain on sale of other real estate owned	(512)	(151)
Amortization of capitalized prepayment penalty on borrowings	68	68
Increase in bank owned life insurance	(743)	(750)
Net amortization of premiums and discounts on investment securities	6,786	5,448
Accretion of SJB discount	(4,393)	(4,692)
Provision for credit losses
Valuation adjustment on other real estate owned	73	226
Change in FDIC loss share asset	4,023	2,944
Proceeds from FDIC loss share agreement	187	1,316
Stock-based compensation	461	405
Depreciation, amortization, net	831	2,158
Change in accrued interest receivable	(630)	137
Change in accrued interest payable	(187)	(109)
Change in other assets and liabilities	(17,176)	5,282
Total adjustments	(13,289)	12,282
Net cash provided by operating activities	8,326	34,550
SUPPLEMENTAL DISCLOSURE OF NONCASH INVESTING ACTIVITIES
Securities purchased and not settled	4,630	2,014
Transfer of loans to other real estate owned	$ 1,303	$ 808