Covered Assets and FDIC Indemnification Asset (Major Types of Covered Loans) (Details) (USD $)	Jun. 30, 2011	Dec. 31, 2010
Commercial real estate, Term & multifamily	$ 3,532,134,000	$ 3,483,475,000
Commercial real estate, Construction & development	184,707,000	247,814,000
Commercial real estate, Residential development	112,657,000	147,813,000
Commercial, Term	572,402,000	509,453,000
Commercial, LOC & other	788,268,000	747,419,000
Residential, Mortgage	245,034,000	222,416,000
Residential, Home equity loans & lines	277,453,000	278,585,000
Consumer & other	34,584,000	33,043,000
Total	5,747,239,000	5,670,018,000
Evergreen Bank [Member] | Covered Loans [Member]
Commercial real estate, Term & multifamily	107,772,000	124,743,000
Commercial real estate, Construction & development	12,398,000	14,162,000
Commercial real estate, Residential development	7,055,000	11,024,000
Commercial, Term	15,406,000	18,828,000
Commercial, LOC & other	9,655,000	11,876,000
Residential, Mortgage	8,079,000	8,129,000
Residential, Home equity loans & lines	5,278,000	6,737,000
Consumer & other	2,293,000	2,781,000
Total	167,936,000	198,280,000
Rainier Pacific Bank [Member] | Covered Loans [Member]
Commercial real estate, Term & multifamily	276,358,000	303,585,000
Commercial real estate, Construction & development	690,000	854,000
Commercial real estate, Residential development	171,000	2,310,000
Commercial, Term	8,913,000	10,811,000
Commercial, LOC & other	12,623,000	14,320,000
Residential, Mortgage	31,120,000	35,026,000
Residential, Home equity loans & lines	22,925,000	25,163,000
Consumer & other	6,416,000	8,058,000
Total	359,216,000	400,127,000
Nevada Security Bank [Member] | Covered Loans [Member]
Commercial real estate, Term & multifamily	131,819,000	141,314,000
Commercial real estate, Construction & development	6,730,000	7,419,000
Commercial real estate, Residential development	8,721,000	11,372,000
Commercial, Term	12,932,000	12,961,000
Commercial, LOC & other	6,202,000	9,031,000
Residential, Mortgage	1,869,000	1,669,000
Residential, Home equity loans & lines	3,251,000	3,725,000
Total	171,524,000	187,491,000
Covered Loans [Member]
Commercial real estate, Term & multifamily	515,949,000	569,642,000
Commercial real estate, Construction & development	19,818,000	22,435,000
Commercial real estate, Residential development	15,947,000	24,706,000
Commercial, Term	37,251,000	42,600,000
Commercial, LOC & other	28,480,000	35,227,000
Residential, Mortgage	41,068,000	44,824,000
Residential, Home equity loans & lines	31,454,000	35,625,000
Consumer & other	8,709,000	10,839,000
Total	$ 698,676,000	$ 785,898,000