v2.4.0.6
Summary of Significant Accounting Policies (Details) (USD $)
12 Months Ended
Dec. 31, 2011
location
Accounting Policies [Line Items]  
Number Of Branch Locations 102
Number Of Days Used To Determine Treatment As Cash Equivalent 90 days
Number of Days of Delinqunecy at Which Loans Are Categorized As Non Accrual Status 90 days
Loans and Leases Receivable, Nonaccrual Loans Considered Impaired $ 250,000
Loans and Leases Receivable, Loans Evaluated For Impairment On Quarterly Basis, Outstanding $ 250,000
Core Deposits [Member]
 
Accounting Policies [Line Items]  
Estimated life of CDI, in years 10
WASHINGTON
 
Accounting Policies [Line Items]  
Number Of Branch Locations 77
OREGON
 
Accounting Policies [Line Items]  
Number Of Branch Locations 25