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Subsequent Events	3 Months Ended
Subsequent Events	Dec. 31, 2013
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events Branch acquisition - Effective January 23, 2014, Washington Federal, the wholly owned subsidiary of the Company, entered into a Purchase and Assumption Agreement for the acquisition of deposits expected to total approximately $610 million, loans totaling approximately $4 million, and related assets, from Bank of America, National Association, for an aggregate purchase price of 1.30% of the average daily closing deposits, which is estimated to be $8 million. This acquisition represents a total of 23 branches located in Arizona and Nevada. Subject to regulatory approval and the satisfaction of customary closing conditions, the transaction is expected to close in the second calendar quarter of 2014.