Consolidated Statements of Income (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2011		Dec. 31, 2010		Dec. 31, 2009
Interest Income
Loans	$ 218,420		$ 157,292		$ 117,062
Taxable securities	21,870		18,276		17,300
Tax-exempt securities	10,142		9,348		8,458
Federal funds sold and deposits in banks	839		963		215
Total interest income	251,271		185,879		143,035
Interest Expense
Deposits	10,478		16,733		23,250
Federal Home Loan Bank and Federal Reserve Bank borrowings	2,980		2,841		2,759
Long-term obligations	579		1,029		1,197
Other borrowings	498		489		477
Total interest expense	14,535		21,092		27,683
Net Interest Income	236,736		164,787		115,352
Provision (recapture) for loan and lease losses	5,752		47,346		63,500
Net interest income after provision (recapture) for loan and lease losses	230,984		117,441		51,852
Noninterest Income (Loss)
Service charges and other fees	26,632		24,698		15,181
Gain on bank acquisitions, net of tax	1,830		9,818		0
Merchant services fees	7,385		7,502		7,321
Redemption of Visa and MasterCard shares	0		0		49
Gain on sale of investment securities, net	134		58		1,077
Impairment charge on investment securities	(2,950)		0		0
Bank owned life insurance	2,188		2,041		2,023
Change in FDIC loss sharing asset	(49,496)		4,908		0
Other	4,994		3,756		4,039
Total noninterest income (loss)	(9,283)		52,781		29,690
Noninterest Expense
Compensation and employee benefits	81,552		69,780		47,275
Occupancy	18,963		16,814		12,128
Merchant processing	3,698		4,364		3,449
Advertising and promotion	3,686		3,081		1,943
Data processing	8,484		8,769		5,482
Legal and professional fees	6,486		5,684		3,871
Taxes, licenses and fees	4,446		2,858		2,478
Regulatory premiums	4,337		6,485		5,777
Net cost (benefit) of operation of other real estate owned	(1,022)		787		861
Amortization of intangibles	4,319		3,922		1,045
FDIC clawback liability	3,656		0		0
Other	17,154		14,603		10,179
Total noninterest expense	155,759		137,147		94,488
Income (loss) before income taxes	65,942		33,075		(12,946)
Provision (benefit) for income taxes	17,905		2,291		(8,978)
Net Income (Loss)	48,037		30,784		(3,968)
Net Income (Loss) Applicable to Common Shareholders	48,037		25,837		(8,371)
Per Common Share
Earnings (loss) basic (dollars per share)	$ 1.22	[1]	$ 0.73	[1]	$ (0.38)
Earnings (loss) diluted (dollars per share)	$ 1.21	[1]	$ 0.72	[1]	$ (0.38)
Dividends paid per common share ($ per share)	$ 0.27		$ 0.04		$ 0.07
Weighted average number of common shares outstanding	39,103		35,209		21,854
Weighted average number of diluted common shares outstanding	39,180		35,392		21,854
Noncovered Loans [Member]
Interest Expense
Provision (recapture) for loan and lease losses	7,400		41,291		63,500
Covered Loans [Member]
Interest Expense
Provision (recapture) for loan and lease losses	$ (1,648)		$ 6,055		$ 0

[1] Due to averaging of shares, quarterly earnings per share may not add up to the totals reported for the full year.