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Financial Information - Washington Federal, INC. Statement of Financial Condition (Details) (USD $) In Thousands, except Share data, unless otherwise specified | Sep. 30, 2012 | Sep. 30, 2011 | Sep. 30, 2010 | Sep. 30, 2009
--- | --- | --- | --- | ---
Assets |  |  |  |
Other Assets | $ 137,219 | $ 59,710 |  |
Assets | 12,472,944 | 13,440,749 |  |
Liabilities |  |  |  |
Liabilities | 10,573,192 | 11,534,216 |  |
Stockholders’ equity |  |  |  |
Common stock, $1.00 par value, 300,000,000 shares authorized;129,950,223 and 129,853,534 shares issued; 106,177,615 and 108,976,410 shares outstanding | 129,950 | 129,854 |  |
Accumulated other comprehensive income (loss), net of tax | 13,306 | 85,789 |  |
Treasury stock, at cost; 23,772,608 and 20,877,124 shares | (310,579) | (268,665) |  |
Retained earnings | 480,780 | 376,712 |  |
Stockholders' Equity | 1,899,752 | 1,906,533 | 1,841,147 | 1,745,485
Liabilities and Equity | 12,472,944 | 13,440,749 |  |
Common stock, par value (in dollars per share) | $ 1 | $ 1 |  |
Common stock, shares authorized (in shares) | 300,000,000 | 300,000,000 |  |
Common stock, shares issued (in shares) | 129,950,223 | 129,853,534 |  |
Common stock, shares outstanding (in shares) | 106,177,615 | 108,976,410 |  |
Treasury stock, shares (in shares) | 23,772,608 | 20,877,124 |  |
Parent Company [Member] |  |  |  |
Assets |  |  |  |
Cash | 61,926 | 27,699 |  |
Investment in subsidiary | 1,846,375 | 1,885,498 |  |
Other Assets | 1 | 37 |  |
Dividend receivable | 0 | 0 |  |
Assets | 1,908,302 | 1,913,234 |  |
Liabilities |  |  |  |
Borrowed money | 0 | 0 |  |
Dividend payable and other liabilities | 8,550 | 6,700 |  |
Other liabilities | 0 | 1 |  |
Liabilities | 8,550 | 6,701 |  |
Stockholders’ equity |  |  |  |
Common stock, $1.00 par value, 300,000,000 shares authorized;129,950,223 and 129,853,534 shares issued; 106,177,615 and 108,976,410 shares outstanding | 129,950 | 129,854 |  |
Paid-in capital | 1,586,295 | 1,582,843 |  |
Accumulated other comprehensive income (loss), net of tax | 13,306 | 85,789 |  |
Treasury stock, at cost; 23,772,608 and 20,877,124 shares | (310,579) | (268,665) |  |
Retained earnings | 480,780 | 376,712 |  |
Stockholders' Equity | 1,899,752 | 1,906,533 |  |
Liabilities and Equity | $ 1,908,302 | $ 1,913,234 |  |

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- Definition Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 130 -Paragraph 14, 17, 26 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=20435746&loc=d3e637-108580 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=20435746&loc=SL7669686-108580 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14 -URI http://asc.fasb.org/extlink&oid=20435746&loc=d3e681-108580 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 31 -Article 5 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 12 -Paragraph 10 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Staff Position (FSP) -Number FAS115-1/124-1 -Paragraph 15D -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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- Definition Number of common and preferred shares that were previously issued and that were repurchased by the issuing entity and held in treasury on the financial statement date. This stock has no voting rights and receives no dividends. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.28,29) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30 -Article 5 + Details
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