Condensed Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
Net cash provided by operating activities before extraordinary net gain	$ 19,500	$ 46,844
Extraordinary gain on extinguishment of junior subordinated debentures, net of income taxes	0	(32,840)
Net cash provided by operating activities	19,500	14,004
Investing activities:
Proceeds from maturities, calls, and prepayments of investment securities available-for-sale	333,769	13,360
Proceeds from maturities, calls of investment securities held-to-maturity	310	470
Purchases of investment securities available-for-sale	(398,174)	(30,585)
Proceeds from sale of FHLB stock	94	0
Net decrease in loans	25,803	209,041
Purchases of premises and equipment	(631)	(350)
Proceeds from sales of OREO	706	8,872
Net cash (used in) provided by investing activities	(38,123)	200,808
Financing activities:
Net decrease in deposits	(16,321)	(228,773)
Tax effect of nonvested restricted stock	(83)	0
Net proceeds from issuance of common stock	0	168,074
Extinguishment of junior subordinated debentures, net	0	(13,625)
Net decrease in FHLB and other borrowings	0	(176,000)
Net cash used in financing activities	(16,404)	(250,324)
Net increase (decrease) in cash and cash equivalents	(35,027)	(35,512)
Cash and cash equivalents at beginning of period	128,439	271,264
Cash and cash equivalents at end of period	93,412	235,752
Supplemental disclosures of cash flow information:
Interest paid	4,057	15,290
Loans transferred to OREO	$ 1,267	$ 9,186