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Dividend (Detail) (USD $) | 1 Months Ended | 0 Months Ended | 12 Months Ended
--- | --- | --- | ---
Dec. 17, 2013 | Aug. 07, 2013 | May 08, 2013 | Dec. 10, 2012 | Aug. 07, 2012 | Jan. 12, 2012 | Sep. 30, 2013 | Sep. 30, 2012
Stockholders' Equity Note [Abstract] |  |  |  |  |  |  |  |
Common Stock, Dividends, Per Share, Declared | $ 0.10 | $ 0.10 | $ 0.10 | $ 0.20 | $ 0.12 | $ 0.10 | $ 0.4 | $ 0.22

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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=6959260&loc=d3e187085-122770 + Details
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- Details
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