Restructuring (Narrative) (Details) (USD $)	12 Months Ended
	Sep. 30, 2011	Oct. 01, 2010	Oct. 02, 2009
Restructuring Charges	$ 2,363,000	$ (1,040,000)	$ 15,982,000
Restructuring Reserve	2,028,000	2,189,000	3,279,000
Payments for Restructuring	(2,852,000)	(1,541,000)	(5,934,000)
Inventory Write-down	0	0	3,458,000
Asset Impairment Charges	0	0	5,616,000
Other Restructuring Costs	328,000	451,000	(198,000)
2011 restructuring and other charges [Member]
Restructuring Charges	2,400,000
Restructuring Reserve	2,600,000
Payments for Restructuring	2,200,000
2009 restructure and other charges [Member]
Restructuring Charges			16,000,000
Payments for Restructuring	700,000
Restructuring and Related Cost, Number of Positions Eliminated			150
Inventory Write-down			3,500,000
Severance Costs			4,500,000
Asset Impairment Charges			5,600,000
Business Exit Costs			2,100,000
Other Asset Impairment Charges			2,300,000
Other Restructuring Costs			$ 1,500,000