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Stock repurchase program (Details) (USD $)
Share data in Thousands, unless otherwise specified |
1 Months Ended | 12 Months Ended | 2 Months Ended | |||
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Jun. 30, 2014
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Nov. 30, 2011
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Sep. 30, 2014
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Sep. 30, 2013
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Sep. 30, 2012
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Nov. 17, 2014
Subsequent events
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| Stock repurchase programs | ||||||
| Stock repurchase programs, authorized amount | $ 125,000,000 | |||||
| Stock repurchase program, increase in authorized amount | 150,000,000 | |||||
| Amount remaining available for future stock repurchases | 135,200,000 | |||||
| Common shares repurchased | 2,700 | 1,000 | 600 | 800 | ||
| Common shares repurchased, cost | $ 113,135,000 | $ 32,525,000 | $ 12,796,000 | $ 30,600,000 | ||
| X | ||||||||||
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- Definition
Increase in amount of a stock repurchase plan authorized by an entity's Board of Directors. No definition available.
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Equity impact of the value of stock that has been repurchased during the period and has not been retired and is not held in treasury. Some state laws may mandate the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of a stock repurchase plan authorized by an entity's Board of Directors. No definition available.
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| X | ||||||||||
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- Definition
Amount remaining of a stock repurchase plan authorized by an entity's Board of Directors. No definition available.
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