Allowance for Non-Covered Loan Loss and Credit Quality (Non-Covered Loans Sold) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Non Covered Loans Sold [Line Items]
Total	$ 35,751	$ 1,536	$ 53,264	$ 5,964
Term & Multifamily [Member]
Non Covered Loans Sold [Line Items]
Total	0	1,289	2,850	4,940
Construction & Development [Member]
Non Covered Loans Sold [Line Items]
Total	0	0	3,515	0
Residential Development [Member]
Non Covered Loans Sold [Line Items]
Total	340	0	363	0
Term [Member]
Non Covered Loans Sold [Line Items]
Total	35,411	0	46,536	0
LOC & Other [Member]
Non Covered Loans Sold [Line Items]
Total	0	55	0	832
Mortgage [Member]
Non Covered Loans Sold [Line Items]
Total	0	192	0	192
Home Equity Loans & Lines [Member]
Non Covered Loans Sold [Line Items]
Total	0	0	0	0
Consumer & Other [Member]
Non Covered Loans Sold [Line Items]
Total	$ 0	$ 0	$ 0	$ 0