Stock-Based Compensation (Schedule of Restricted Stock Units Activity) (Parenthetical) (Details)	6 Months Ended
Mar. 31, 2016 shares
Restricted Stock Units (RSUs) \| Chief Executive Officer and Other Senior Managers
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based compensation accelerated vesting shares	84,043

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

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