Accrued Expenses and Other Current Liabilities (Schedule of Product Warranty Accruals) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2011
Schedule of Product Warranty Accruals [Abstract]
Balance at beginning of period	$ 4,100	$ 4,158	$ 4,851
Provision for product warranty - expense	2,914	(49)	970
Adjustments and utilization of warranty accrual	(2,453)	(9)	(1,663)
Current portion	4,030	3,692	4,158
Non-current portion	531	408	0
Balance at end of period	$ 4,561	$ 4,100	$ 4,158

Carrying value as of the balance sheet date of obligations incurred through that date and payable for estimated claims under standard and extended warranty protection rights granted to customers.

+ References+ Details

Carrying value as of the balance sheet date of obligations incurred through that date and payable for estimated claims under standard and extended warranty protection rights granted to customers. For classified balance sheets, represents the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

+ References+ Details

- Definition

Carrying value as of the balance sheet date of obligations incurred through that date and due after one year (or beyond the operating cycle if longer) for estimated claims under standard and extended warranty protection rights granted to customers.

+ References+ Details