CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (Unaudited) (Parenthetical) - $ / shares |
6 Months Ended | |
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Mar. 31, 2018 |
Mar. 31, 2017 |
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| Statement of Stockholders' Equity [Abstract] | ||
| Purchase of treasury stock (in shares) | 336,386 | 135,147 |
| Issuance of treasury stock (in shares) | 326,827 | 215,058 |
| Cancellations of treasury stock (in shares) | 5,214 | 2,640 |
| Dividends, per share (in dollars per share) | $ 0.38 | $ 0.34 |
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- Definition Aggregate dividends paid during the period for each share of common stock outstanding. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- References No definition available.
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- Definition Number of treasury shares (units) reissued during the period, excluding reissuance of shares (units) held in treasury used to satisfy equity-based compensation obligations exercised by the holders of such rights. Upon reissuance of shares (units) from treasury, either the common or preferred stock (unit) reissued is outstanding. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Number of shares that have been repurchased during the period and are being held in treasury. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Number of shares of common and preferred stock retired from treasury during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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