Covered Assets And Indemnification Asset (Estimated Fair Value Of Acquired Loans) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2011 Estimated Fair Value [Member]	Jan. 22, 2010 Estimated Fair Value [Member] Evergreen Bank [Member]	Feb. 26, 2010 Estimated Fair Value [Member] Rainier Pacific Bank [Member]	Jun. 18, 2010 Estimated Fair Value [Member] Nevada Security Bank [Member]
Commercial real estate, Term & multifamily	$ 3,558,295	$ 3,483,475	$ 627,064	$ 141,076	$ 331,869	$ 154,119
Commercial real estate, Construction & development	165,066	247,814	28,875	18,832	562	9,481
Commercial real estate, Residential development	90,073	147,813	42,200	16,219	10,340	15,641
Commercial, Term	625,766	509,453	60,379	27,272	14,850	18,257
Commercial, LOC & other	832,999	747,419	53,542	23,965	18,169	11,408
Residential, Mortgage	315,927	222,416	53,322	11,886	39,897	1,539
Residential, Home equity loans & lines	272,192	278,585	43,758	8,308	31,029	4,421
Consumer & other	38,860	33,043	17,200	4,935	11,624	641
Total	$ 5,899,178	$ 5,670,018	$ 926,340	$ 252,493	$ 458,340	$ 215,507