Accrued Expenses and Other Current Liabilities (Schedule of Restructuring and Related Costs) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
Restructuring Reserve [Roll Forward]
Beginning balance	$ 1,521	$ 405
Expense - charged to accrual	723	1,358
Payments and accrual adjustments	(1,643)	(242)
Ending balance	601	1,521
Severance-related accruals
Restructuring Reserve [Roll Forward]
Beginning balance	1,105	5
Expense - charged to accrual	723	1,128
Payments and accrual adjustments	(1,305)	(28)
Ending balance	523	1,105
Restructuring-related accruals
Restructuring Reserve [Roll Forward]
Beginning balance	416	400
Expense - charged to accrual	0	230
Payments and accrual adjustments	(338)	(214)
Ending balance	$ 78	$ 416