Other Income (Expense) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Dec. 31, 2011	Jan. 01, 2011
Component of Other Income (Expense), Nonoperating [Line Items]
Other income (expense), net	$ 518	$ 1,754
Foreign exchange gain (loss)
Component of Other Income (Expense), Nonoperating [Line Items]
Other income (expense), net	313	6
Gain (Loss) on deferred compensation investments, net (Note 14)
Component of Other Income (Expense), Nonoperating [Line Items]
Other income (expense), net	(41)	1,554
Interest and dividend income [Member]
Component of Other Income (Expense), Nonoperating [Line Items]
Other income (expense), net	202	183
Interest expense [Member]
Component of Other Income (Expense), Nonoperating [Line Items]
Other income (expense), net	(2)	(15)
Other-net
Component of Other Income (Expense), Nonoperating [Line Items]
Other income (expense), net	$ 46	$ 26