XML 63 R27.htm IDEA: XBRL DOCUMENT
v2.4.1.9

Dividends (Details) (USD $) | 3 Months Ended | 0 Months Ended
--- | --- | ---
Dec. 31, 2014 | Sep. 30, 2014 | Dec. 31, 2013 | Jan. 21, 2015
Subsequent Event [Line Items] |  |  |  |
Cash dividends per share (in dollars per share) | $ 0.15 us-gaap_CommonStockDividendsPerShareCashPaid | $ 0.11 us-gaap_CommonStockDividendsPerShareCashPaid | $ 0.10 us-gaap_CommonStockDividendsPerShareCashPaid |
Common Stock, Dividends, Per Share, Declared |  | $ 0.11 us-gaap_CommonStockDividendsPerShareDeclared |  |
Subsequent Event [Member] |  |  |  |
Subsequent Event [Line Items] |  |  |  |
Common Stock, Dividends, Per Share, Declared |  |  |  | $ 0.13 us-gaap_CommonStockDividendsPerShareDeclared / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember
Common Stock, Dividends, Increase in Declared Amount, Per Share |  |  |  | $ 0.02 wfsl_CommonStockDividendsIncreaseinDeclaredAmountPerShare / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember
Common Stock, Dividends, Increase in Declared Amount, Percent |  |  |  | 18.00%wfsl_CommonStockDividendsIncreaseinDeclaredAmountPercent / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember

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- Definition Aggregate dividends paid during the period for each share of common stock outstanding. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 + Details
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- Definition Aggregate dividends declared during the period for each share of common stock outstanding. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 + Details
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