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Accounts Payable and Accrued Expenses (Details) - USD ($)
$ in Thousands
Mar. 31, 2016
Sep. 30, 2015
Payables and Accruals [Abstract]    
Accounts payable $ 8,096 $ 14,498
Accrued compensation and benefits 17,955 17,534
Other accrued expenses 8,675 10,588
Accounts payable and accrued expenses, total $ 34,726 $ 42,620