Summary of Significant Accounting Policies	3 Months Ended
Dec. 31, 2014
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	Summary of Significant Accounting Policies Nature of Operations - Washington Federal, Inc. is a Washington corporation headquartered in Seattle, Washington. The Company is a bank holding company that conducts its operations through a federally-insured national bank subsidiary. The Bank is principally engaged in the business of attracting deposits from the general public and investing these funds, together with borrowings and other funds, in one-to-four family residential real estate loans, multi-family real estate loans and commercial loans. As used throughout this document, the terms "Washington Federal" or the "Company" refer to Washington Federal, Inc. and its consolidated subsidiaries and the term "Bank" refers to the operating subsidiary Washington Federal, National Association. Basis of Presentation - The unaudited interim financial statements included in this report have been prepared by Washington Federal. All intercompany transactions and accounts have been eliminated in consolidation. The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America (“GAAP”) requires management to make estimates and assumptions that affect amounts reported in the financial statements. Actual results could differ from these estimates. In the opinion of management, all adjustments (consisting only of normal recurring accruals) necessary for a fair presentation are reflected in the interim financial statements. The September 30, 2014 Consolidated Statement of Financial Condition was derived from audited financial statements. The information included in this Form 10-Q should be read in conjunction with the financial statements and related notes in the Company’s 2014 Annual Report on Form 10-K (“2014 Form 10-K”) as filed with the SEC. Interim results are not necessarily indicative of results for a full year. Summary of Significant Accounting Policies - The significant accounting policies used in preparation of our consolidated financial statements are disclosed in our 2014 Form 10-K. Other than as discussed below, there have not been any material changes in our significant accounting policies compared to those contained in our 2014 Form 10-K disclosure for the year ended September 30, 2014. Correction of Immaterial Errors Related to Prior Periods - During the three months ended December 31, 2014, the Company made an $8,200,000 adjustment which increased the value of real estate owned and other income to correct an error in prior years. The adjustment reflects a one-time correction necessary to change the accounting for real estate owned to be in conformity with GAAP. The Company also made an $8,900,000 adjustment which decreased accrued interest receivable and other income as a result of the Company identifying a reconciliation error which had overstated interest income and accrued interest receivable. Based upon an evaluation of all relevant factors, management believes these correcting adjustments did not have a material impact on the Company’s current quarter financial statement or on any previously reported quarterly or yearly results. Off-Balance-Sheet Credit Exposures – The only material off-balance-sheet credit exposures are loans in process and unused lines of credit, which had a combined balance at December 31, 2014 and September 30, 2014, excluding covered loans, of $584,227,000 and $583,838,000, respectively. The Company estimates losses on off-balance-sheet credit exposures by allocating a loss percentage derived from historical loss factors for each asset class. Reclassifications - Reclassification of Other Expenses into Product delivery and Information technology line items have been made to the financial statements for years prior to September 30, 2014 to conform to current year classifications.

Summary of Significant Accounting Policies

Nature of Operations - Washington Federal, Inc. is a Washington corporation headquartered in Seattle, Washington. The Company is a bank holding company that conducts its operations through a federally-insured national bank subsidiary. The Bank is principally engaged in the business of attracting deposits from the general public and investing these funds, together with borrowings and other funds, in one-to-four family residential real estate loans, multi-family real estate loans and commercial loans. As used throughout this document, the terms "Washington Federal" or the "Company" refer to Washington Federal, Inc. and its consolidated subsidiaries and the term "Bank" refers to the operating subsidiary Washington Federal, National Association.

Basis of Presentation - The unaudited interim financial statements included in this report have been prepared by Washington Federal. All intercompany transactions and accounts have been eliminated in consolidation. The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America (“GAAP”) requires management to make estimates and assumptions that affect amounts reported in the financial statements. Actual results could differ from these estimates. In the opinion of management, all adjustments (consisting only of normal recurring accruals) necessary for a fair presentation are reflected in the interim financial statements. The September 30, 2014 Consolidated Statement of Financial Condition was derived from audited financial statements.

The information included in this Form 10-Q should be read in conjunction with the financial statements and related notes in the Company’s 2014 Annual Report on Form 10-K (“2014 Form 10-K”) as filed with the SEC. Interim results are not necessarily indicative of results for a full year.

Summary of Significant Accounting Policies - The significant accounting policies used in preparation of our consolidated financial statements are disclosed in our 2014 Form 10-K. Other than as discussed below, there have not been any material changes in our significant accounting policies compared to those contained in our 2014 Form 10-K disclosure for the year ended September 30, 2014.

Correction of Immaterial Errors Related to Prior Periods - During the three months ended December 31, 2014, the Company made an $8,200,000 adjustment which increased the value of real estate owned and other income to correct an error in prior years. The adjustment reflects a one-time correction necessary to change the accounting for real estate owned to be in conformity with GAAP. The Company also made an $8,900,000 adjustment which decreased accrued interest receivable and other income as a result of the Company identifying a reconciliation error which had overstated interest income and accrued interest receivable. Based upon an evaluation of all relevant factors, management believes these correcting adjustments did not have a material impact on the Company’s current quarter financial statement or on any previously reported quarterly or yearly results.

Off-Balance-Sheet Credit Exposures – The only material off-balance-sheet credit exposures are loans in process and unused lines of credit, which had a combined balance at December 31, 2014 and September 30, 2014, excluding covered loans, of $584,227,000 and $583,838,000, respectively. The Company estimates losses on off-balance-sheet credit exposures by allocating a loss percentage derived from historical loss factors for each asset class.

Reclassifications - Reclassification of Other Expenses into Product delivery and Information technology line items have been made to the financial statements for years prior to September 30, 2014 to conform to current year classifications.