Summary of Significant Accounting Policies (Foreign Currency Transactions and Translation) (Details) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Sep. 30, 2016 |
Sep. 30, 2015 |
Sep. 30, 2014 |
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| Organization, Consolidation and Presentation of Financial Statements [Abstract] | |||
| Foreign currency transaction gain (loss), before tax | $ (0.1) | $ 0.3 | $ 0.1 |
| X | ||||||||||
- Definition Amount before tax of foreign currency transaction realized and unrealized gain (loss) recognized in the income statement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- References No definition available.
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