Other Real Estate Owned (Narrative) (Details) (USD $)	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2011 California [Member]	Dec. 31, 2010 California [Member]	Dec. 31, 2011 Texas [Member]	Dec. 31, 2010 Texas [Member]	Dec. 31, 2011 Washington State [Member]	Dec. 31, 2010 Washington State [Member]	Dec. 31, 2011 Nevada [Member]	Dec. 31, 2011 Other States [Member]	Dec. 31, 2011 Residential [Member] California [Member]	Dec. 31, 2010 Residential [Member] California [Member]	Dec. 31, 2011 Residential [Member] Texas [Member]	Dec. 31, 2010 Residential [Member] Texas [Member]	Dec. 31, 2011 Residential [Member] Washington State [Member]	Dec. 31, 2010 Residential [Member] Washington State [Member]	Dec. 31, 2011 Residential [Member] Nevada [Member]	Dec. 31, 2010 Residential [Member] Nevada [Member]	Dec. 31, 2011 Commercial [Member] California [Member]	Dec. 31, 2010 Commercial [Member] California [Member]	Dec. 31, 2011 Commercial [Member] Texas [Member]	Dec. 31, 2010 Commercial [Member] Texas [Member]	Dec. 31, 2011 Commercial [Member] Nevada [Member]	Dec. 31, 2011 Commercial [Member] Other States [Member]	Dec. 31, 2010 Commercial [Member] Other States [Member]	Dec. 31, 2011 Commercial Building Construction Projects [Member] California [Member]	Dec. 31, 2010 Commercial Building Construction Projects [Member] California [Member]	Dec. 31, 2011 Commercial Building Construction Projects [Member] Texas [Member]	Dec. 31, 2010 Commercial Building Construction Projects [Member] Texas [Member]	Dec. 31, 2011 Commercial Building Construction Projects [Member] Washington State [Member]	Dec. 31, 2010 Commercial Building Construction Projects [Member] Washington State [Member]	Dec. 31, 2011 Residential Construction Projects [Member] California [Member]	Dec. 31, 2010 Residential Construction Projects [Member] California [Member]	Dec. 31, 2010 Residential Construction Projects [Member] Texas [Member]	Dec. 31, 2010 Residential Construction Projects [Member] Washington State [Member]	Dec. 31, 2011 Retail Stores [Member] Washington State [Member]	Dec. 31, 2011 Office And Commercial Use Buildings [Member] California [Member]	Dec. 31, 2010 Office And Commercial Use Buildings [Member] California [Member]	Dec. 31, 2011 Family Residential Properties [Member] California [Member]	Dec. 31, 2010 Family Residential Properties [Member] California [Member]	Dec. 31, 2011 Family Residential Properties [Member] Texas [Member]	Dec. 31, 2010 Family Residential Properties [Member] Texas [Member]	Dec. 31, 2011 Family Residential Properties [Member] Washington State [Member]	Dec. 31, 2010 Family Residential Properties [Member] Washington State [Member]	Dec. 31, 2011 Family Residential Properties [Member] Other States [Member]	Dec. 31, 2010 Multi-Family Residences [Member] Texas [Member]	Dec. 31, 2010 Industrial Building [Member] Texas [Member]
Other Real Estate Owned [Line Items]
Increased value of other real estate owned	$ 15,000,000
Percentage of value increased, other real estate owned	19.30%
Carrying value of other real estate owned		$ 32,300,000	$ 55,900,000	$ 48,600,000	$ 12,900,000	$ 3,900,000	$ 4,300,000	$ 4,800,000	$ 3,000,000	$ 9,900,000	$ 14,300,000	$ 11,700,000	$ 3,600,000	$ 1,200,000	$ 1,300,000	$ 3,500,000	$ 3,300,000	$ 4,800,000	$ 8,100,000	$ 33,500,000	$ 906,000	$ 1,300,000	$ 2,100,000	$ 1,300,000	$ 3,500,000	$ 4,800,000	$ 2,400,000	$ 1,900,000	$ 658,000	$ 949,000	$ 588,000	$ 9,700,000	$ 3,700,000	$ 1,800,000	$ 1,600,000	$ 13,200,000	$ 18,400,000	$ 395,000	$ 605,000	$ 959,000	$ 786,000	$ 531,000	$ 241,000	$ 878,000	$ 1,700,000	$ 291,000
Number of real estate properties										5	7	3	2	3	1			4	6	8	1	1	3	3	2	2	3	2	1	1	1	3	2	2	2	12	11	2	3	3	3	3	1	4	2