Accrued Expenses and Other Current Liabilities (Schedule of Restructuring and Related Costs) (Details) $ in Thousands	9 Months Ended
	Jun. 30, 2015 USD ($)
Restructuring Reserve [Roll Forward]
Balance as of September 30, 2014	$ 1,317
Expense - charged to accrual	1,824
Payments and accrual adjustments	(1,341)
Balance as of June 30, 2015	1,800
Severance-related accruals
Restructuring Reserve [Roll Forward]
Balance as of September 30, 2014	1,317
Expense - charged to accrual	1,087
Payments and accrual adjustments	(1,135)
Balance as of June 30, 2015	1,269
Restructuring- related accruals
Restructuring Reserve [Roll Forward]
Balance as of September 30, 2014	0
Expense - charged to accrual	737
Payments and accrual adjustments	(206)
Balance as of June 30, 2015	$ 531