Consolidated Statements Of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2011		Dec. 31, 2010		Dec. 31, 2009
INTEREST INCOME
Interest and fees on non-covered loans	$ 319,702		$ 336,320		$ 355,195
Interest and fees on covered loans	86,011		73,812
Interest and dividends on investment securities
Taxable	85,785		67,388		60,195
Exempt from federal income tax	8,653		8,839		7,794
Dividends	12		14		22
Interest on temporary investments and interest bearing deposits	1,590		2,223		526
Total interest income	501,753		488,596		423,732
INTEREST EXPENSE
Interest on deposits	55,743		76,241		88,742
Interest on securities sold under agreements to repurchase and federal funds purchased	539		517		680
Interest on term debt	9,255		9,229		4,576
Interest on junior subordinated debentures	7,764		7,825		9,026
Total interest expense	73,301		93,812		103,024
Net interest income	428,452		394,784		320,708
PROVISION FOR NON-COVERED LOAN AND LEASE LOSSES	46,220		113,668		209,124
PROVISION FOR COVERED LOAN AND LEASE LOSSES	16,141		5,151
Net interest income after provision for loan and lease losses	366,091		275,965		111,584
NON-INTEREST INCOME
Service charges on deposit accounts	33,096		34,874		32,957
Brokerage commissions and fees	12,787		11,661		7,597
Mortgage banking revenue, net	26,550		21,214		18,688
Gain (loss) on investment securities, net
Gain on sale of investment securities, net	7,735		2,326		8,896
Total other-than-temporary impairment losses	(190)		(93)		(12,556)
Portion of other-than-temporary impairment losses (transferred from) recognized in other comprehensive income	(169)		(321)		1,983
Total gain (loss) on investment securities, net	7,376		1,912		(1,677)
(Loss) gain on junior subordinated debentures carried at fair value	(2,197)		4,980		6,482
Bargain purchase gain on acquisition			6,437
Change in FDIC indemnification asset	(6,168)		(16,445)
Other income	12,674		11,271		9,469
Total non-interest income	84,118		75,904		73,516
NON-INTEREST EXPENSE
Salaries and employee benefits	179,480		162,875		126,850
Net occupancy and equipment	51,284		45,940		39,673
Communications	11,214		10,464		7,671
Marketing	6,138		6,225		4,529
Services	24,170		22,576		21,918
Supplies	2,824		3,998		3,257
FDIC assessments	10,768		15,095		15,825
Net loss on non-covered other real estate owned	10,690		8,097		23,204
Net loss (gain) on covered other real estate owned	7,481		(2,172)
Intangible amortization and impairment	4,948		5,389		6,165
Goodwill impairment					111,952
Merger-related expenses	360		6,675		273
Other expenses	29,614		32,576		18,086
Total non-interest expense	338,971		317,738		379,403
Income (loss) before provision for (benefit from) income taxes	111,238		34,131		(194,303)
Provision for (benefit from) income taxes	36,742		5,805		(40,937)
Net income (loss)	74,496		28,326		(153,366)
Preferred stock dividends			12,192		12,866
Dividends and undistributed earnings allocated to participating securities	356	[1]	67	[1]	30	[1]
Net earnings (loss) available to common shareholders	$ 74,140		$ 16,067		$ (166,262)
Earnings (loss) per common share:
Basic	$ 0.65		$ 0.15		$ (2.36)
Diluted	$ 0.65		$ 0.15		$ (2.36)
Weighted average number of common shares outstanding:
Basic	114,220		107,922		70,399
Diluted	114,409		108,153		70,399

[1] Represents dividends paid and undistributed earnings allocated to nonvested restricted stock awards.