Unaudited Consolidated Statements of Cash Flows (USD $) In Thousands	6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010
Cash flows from operating activities:
Net income	$ 29,548	$ 12,582
Adjustments to reconcile net income to net cash used in operating activities:
Amortization of deferred loan origination fees, net of costs	(27)	346
Amortization of premiums, net of accretion of discounts	6,186	13,426
Amortization of core deposit intangible	71	23
Accretion of FDIC loss-share indemnification asset, net	(2,231)	(1,314)
Other-than-temporary impairments on securities		2,428
Depreciation and amortization of premises and equipment	2,748	2,596
Deferred income taxes, net	(2,753)	(4,099)
Provision for loan and lease losses, net	8,149	8,114
Stock-based compensation	682	546
Fair value adjustment of servicing asset	(483)	(975)
(Gain) loss on:
Sale of securities	(9,130)	(23,853)
Sale of mortgage loans held for sale	(2,441)	(2,104)
Derivatives	7,571	37,251
Sale of foreclosed real estate	135	143
Sale of premises and equipment	38	1,865
Originations and purchases of loans held-for-sale	(106,955)	(106,289)
Proceeds from sale of loans held-for-sale	36,608	35,451
Net (increase) decrease in:
Trading securities	466	467
Accrued interest receivable	2,286	(977)
Other assets	1,111	(6,706)
Net increase (decrease) in:
Accrued interest payable on deposits and borrowings	(618)	1,553
Accrued expenses and other liabilities	(22,062)	2,833
Net cash used in operating activities	(51,101)	(26,693)
Purchases of:
Investment securities available-for-sale	(492,533)	(3,932,574)
Investment securities held-to-maturity	(209,112)
FHLB stock	(1,283)	(2,560)
Equity options	(370)	(1,110)
Maturities and redemptions of:
Investment securities available-for-sale	446,958	1,257,926
Investment securities held-to-maturity	33,412
FHLB stock		10,077
Proceeds from sales of:
Investment securities available-for-sale	252,836	2,466,565
Foreclosed real estate	5,806	2,481
Other repossessed assets	2,842
Premises and equipment	11	635
Origination and purchase of loans, excluding loans held-for-sale	(87,675)	(61,155)
Principal repayment of loans, including covered loans	133,000	84,275
Reimbursements from the FDIC on shared loss agreements	39,870
Additions to premises and equipment	(2,474)	(934)
Cash and cash equivalents received in FDIC-assisted acquisition		89,777
Net cash provided by (used in) investing activities	121,288	(86,597)
Net increase (decrease) in:
Deposits	(204,576)	65,050
Short term borrowings	(10,658)	(3,979)
Securities sold under agreement to repurchase	2,600
Proceeds from:
Exercise of stock options		21
Issuance of common stock, net		94,390
Issuance of preferred stock, net		189,089
Repayments and advances form purchase money note issued to the FDIC		(5,433)
Purchase of treasury stock	(29,242)
Termination of derivative instruments	10,648	(25,109)
Dividends paid on preferred stock	(2,401)	(2,934)
Dividends paid on common stock	(4,475)	(2,294)
Net cash provided by (used in) financing activities	(238,104)	308,801
Net change in cash and cash equivalents	(167,917)	195,511
Cash and cash equivalents at beginning of period	448,946	277,123
Cash and cash equivalents at end of period	281,029	472,634
Supplemental Cash Flow Disclosure and Schedule of Non-cash Activities:
Interest paid	80,854	82,160
Income taxes paid	3,848	6,281
Mortgage loans securitized into mortgage-backed securities	71,007	68,155
Securities sold but not yet delivered		1,490
Securities purchased but not yet received		533
Transfer from loans to foreclosed real estate and other repossed assets	$ 10,464	$ 7,522