Summary of Significant Accounting Policies - Impairment of Long-Lived Assets (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
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Sep. 30, 2016 |
Sep. 30, 2015 |
Sep. 30, 2014 |
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| Accounting Policies [Abstract] | |||
| Impairment loss | $ 0 | $ 541 | $ 0 |
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- References No definition available.
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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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