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Fair Value Measurements (Details) (USD $)
In Thousands, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
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Sep. 30, 2012
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Sep. 30, 2011
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Sep. 30, 2010
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| Fair Value Measurements [Abstract] | |||
| Deferred retirement benefits, discount rate | 4.50% | 4.50% | |
| Impairment on assets held for sale | $ 1,918 | ||
| Impairment charge to property | $ 908 | ||
| X | ||||||||||
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- Definition
The interest rate used to adjust for the time value of money for the plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Details
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- Definition
The aggregate amount of write-downs for impairments recognized during the period for long lived assets held for use (including those held for disposal by means other than sale). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The aggregate amount of write-downs for impairments recognized during the period for long-lived assets held for abandonment, exchange or sale. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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