Business Combinations (Schedule Of Net Assets (Liabilities) Received From The FDIC And The Estimated Fair Value Adjustments) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended			12 Months Ended						0 Months Ended
	Dec. 31, 2010	Dec. 31, 2011	Dec. 31, 2009	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]	Jan. 22, 2010 Evergreen Bank [Member]	Jan. 22, 2010 Evergreen Bank [Member] Fair Value Adjustments [Member]	Feb. 26, 2010 Rainier Pacific Bank [Member]	Feb. 26, 2010 Rainier Pacific Bank [Member] Fair Value Adjustments [Member]	Jun. 18, 2010 Nevada Security Bank [Member]	Jun. 18, 2010 Nevada Security Bank [Member] Fair Value Adjustments [Member]
Cost basis net assets (liabilities)				$ 58,800		$ 50,300		$ 53,600			$ 58,811		$ (50,295)		$ 53,629
Cash payment received from (paid to) the FDIC						59,400		30,000					59,351		(29,950)
Loans	5,557,066	5,795,130									(117,449)		(103,137)		(112,975)
Other real estate owned											(2,422)		(6,581)		(17,939)
Other intangible assets											440		6,253		322
FDIC indemnification asset	146,413	91,089		28,547	40,606	28,272	43,726	34,270	62,081		71,755		76,603		99,160
Deposits	(9,433,805)	(9,236,690)	(7,440,434)								(1,023)		(1,828)		(1,950)
Term debt		(245,535)									(2,496)		(13,035)
Other	(242,465)	(247,606)									(1,179)		(3,139)		(690)
Bargain purchase gain (goodwill)	$ (6,437)			$ (6,400)						$ (6,437)	$ 6,437		$ (35,808)		$ (10,393)