Covered Assets And Indemnification Asset (Narrative) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2011 Evergreen Bank [Member]	Dec. 31, 2010 Evergreen Bank [Member]	Dec. 31, 2011 Rainier Pacific Bank [Member]	Dec. 31, 2010 Rainier Pacific Bank [Member]	Dec. 31, 2011 Nevada Security Bank [Member]	Dec. 31, 2010 Nevada Security Bank [Member]
Outstanding unpaid principal of covered loans		$ 209.5	$ 286.6	$ 379.0	$ 481.7	$ 260.2	$ 295.4
Recaptured provision on covered loans	$ 3.5
Range of risk rating for loans and leases, minimum	1
Range of risk rating for loans and leases, maximum	10