Other Income (Expense) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Mar. 31, 2012	Apr. 02, 2011	Mar. 31, 2012	Apr. 02, 2011
Component of Other Income (Expense), Nonoperating [Line Items]
Other Nonoperating Income (Expense)	$ 1,888	$ 9,181	$ 2,206	$ 10,767
Foreign exchange gain (loss)
Component of Other Income (Expense), Nonoperating [Line Items]
Other Nonoperating Income (Expense)	(11)	(451)	302	(445)
Gain (Loss) on deferred compensation investments, net (Note 14)
Component of Other Income (Expense), Nonoperating [Line Items]
Other Nonoperating Income (Expense)	1,541	3,117	1,488	4,670
Translation adjustment related to dissolution of Finland
Component of Other Income (Expense), Nonoperating [Line Items]
Other Nonoperating Income (Expense)	0	6,511	0	6,511
Other-net
Component of Other Income (Expense), Nonoperating [Line Items]
Other Nonoperating Income (Expense)	$ 358	$ 4	$ 416	$ 31