Covered Assets and FDIC Indemnification Asset (Summary of Activity Related to the FDIC Indemnification Asset) (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Balance, beginning of period	$ 131,872,000.000	$ 141,955,000.000	$ 146,413,000.000
Acquisitions		99,160,000.000		247,518,000.000
Change in FDIC indemnification asset	(5,551,000.000)	263,000.000	(2,646,000.000)	873,000.000
Transfers to due from FDIC and other	(9,393,000.000)	(16,024,000.000)	(26,839,000.000)	(23,037,000.000)
Balance, end of period	116,928,000.000	225,354,000.000	116,928,000.000	225,354,000.000
Evergreen Bank [Member]
Balance, beginning of period	40,379,000.000	71,696,000.000	40,606,000.000
Acquisitions				71,755,000.000
Change in FDIC indemnification asset	(2,895,000.000)	539,000.000	1,850,000.000	939,000.000
Transfers to due from FDIC and other	(1,366,000.000)	(167,000.000)	(6,338,000.000)	(626,000.000)
Balance, end of period	36,118,000.000	72,068,000.000	36,118,000.000	72,068,000.000
Rainier Pacific Bank [Member]
Balance, beginning of period	37,875,000.000	70,259,000.000	43,726,000.000
Acquisitions				76,603,000.000
Change in FDIC indemnification asset	(811,000.000)	(360,000.000)	(4,921,000.000)	(150,000.000)
Transfers to due from FDIC and other	(1,065,000.000)	(15,301,000.000)	(2,806,000.000)	(21,855,000.000)
Balance, end of period	35,999,000.000	54,598,000.000	35,999,000.000	54,598,000.000
Nevada Security Bank [Member]
Balance, beginning of period	53,618,000.000		62,081,000.000
Acquisitions		99,160,000.000		99,160,000.000
Change in FDIC indemnification asset	(1,845,000.000)	84,000.000	425,000.000	84,000.000
Transfers to due from FDIC and other	(6,962,000.000)	(556,000.000)	(17,695,000.000)	(556,000.000)
Balance, end of period	$ 44,811,000.000	$ 98,688,000.000	$ 44,811,000.000	$ 98,688,000.000