Income Taxes Deferred Tax Asset (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
Deferred Tax Asset and Liability, Net [Line Items]
NOL carryforwards - federal	$ 206,841,000	$ 242,318,000
NOL carryforwards - state	19,831,000	21,443,000
Tax credits - federal	13,172,000	7,671,000
Tax credits - state	2,421,000	2,594,000
Allowance for losses on loans	54,951,000	61,385,000
Deferred compensation	13,727,000	10,760,000
Bonus accrual	4,901,000	4,670,000
Intangibles	4,591,000	2,284,000
Deferred Tax Assets, Unrealized Losses on Available-for-Sale Securities, Gross	1,368,000	0
Purchase accounting premiums and discounts	3,470,000	2,087,000
Nonaccrual loans	2,543,000	1,931,000
Deferred rent	1,309,000	1,119,000
Other	1,143,000	3,394,000
Deferred tax assets	330,268,000	361,656,000
Unrealized gain on available-for-sale securities	0	22,627,000
FHLB Seattle dividends	15,451,000	16,325,000
Mortgage servicing rights	19,851,000	11,869,000
Fair value - Llans held for sale	389,000	8,966,000
Deferred loan fees	6,799,000	5,867,000
Prepaid expenses	1,955,000	2,151,000
ASC 740 (FIN 48) - temporary differences	0	5,000
Deferred tax liabilities	44,445,000	67,810,000
Deferred Tax Assets, Valuation Allowance	(1,764,000)	(1,764,000)
Net deferred tax asset	284,059,000	292,082,000
Domestic Tax Authority [Member]
Deferred Tax Asset and Liability, Net [Line Items]
Net operatin loss carryforwards	591,000,000
State and Local Jurisdiction [Member]
Deferred Tax Asset and Liability, Net [Line Items]
Net operatin loss carryforwards	$ 332,700,000