Restructuring and Other Charges (Details 2) (USD $)	3 Months Ended		9 Months Ended
	Oct. 01, 2011	Oct. 02, 2010	Oct. 01, 2011	Oct. 02, 2010
Activity associated with Restructuring Plan
Restructuring and other charges (credits)	$ (433,000)	$ (1,682,000)	$ 277,000	$ (3,073,000)
Ending Balance	5,591,000		5,591,000
Restructuring and Other Charges (Textual) [Abstract]
Maximum Amount of estimated lease losses based on changes in assumptions	8,300,000		8,300,000
Restructuring Plan 2010 [Member]
Activity associated with Restructuring Plan
Beginning Balance	2,169,000		9,529,000
Restructuring and other charges (credits)	(168,000)		608,000
Non-cash charges			3,000
Cash payments	(919,000)		(9,270,000)
Effect of foreign currency translation	(88,000)		124,000
Ending Balance	994,000		994,000
Restructuring and Other Charges (Textual) [Abstract]
Severance costs paid to date			8,200,000
Restructuring Plan 2010 [Member] | Severance and Benefits [Member]
Activity associated with Restructuring Plan
Beginning Balance	770,000		9,095,000
Restructuring and other charges (credits)	(124,000)		(887,000)
Non-cash charges			0
Cash payments	(477,000)		(8,237,000)
Effect of foreign currency translation	(22,000)		176,000
Ending Balance	147,000		147,000
Restructuring Plan 2010 [Member] | Excess Facilities [Member]
Activity associated with Restructuring Plan
Beginning Balance	1,399,000		434,000
Restructuring and other charges (credits)	(44,000)		1,495,000
Non-cash charges			3,000
Cash payments	(442,000)		(1,033,000)
Effect of foreign currency translation	(66,000)		(52,000)
Ending Balance	847,000		847,000
Other Restructuring Plans [Member]
Activity associated with Restructuring Plan
Beginning Balance	5,339,000		5,542,000
Restructuring and other charges (credits)	(265,000)		(331,000)
Non-cash charges			134,000
Cash payments	(238,000)		(770,000)
Effect of foreign currency translation	(239,000)		22,000
Ending Balance	4,597,000		4,597,000
Other Restructuring Plans [Member] | Severance and Benefits [Member]
Activity associated with Restructuring Plan
Beginning Balance	22,000		103,000
Restructuring and other charges (credits)	(24,000)		(101,000)
Non-cash charges			0
Cash payments	0		(4,000)
Effect of foreign currency translation	2,000		2,000
Ending Balance	0		0
Other Restructuring Plans [Member] | Excess Facilities [Member]
Activity associated with Restructuring Plan
Beginning Balance	5,312,000		5,434,000
Restructuring and other charges (credits)	(241,000)		(230,000)
Non-cash charges			134,000
Cash payments	(238,000)		(766,000)
Effect of foreign currency translation	(241,000)		20,000
Ending Balance	4,592,000		4,592,000
Other Restructuring Plans [Member] | Others [Member]
Activity associated with Restructuring Plan
Beginning Balance	5,000		5,000
Restructuring and other charges (credits)	0		0
Non-cash charges			0
Cash payments	0		0
Effect of foreign currency translation	0		0
Ending Balance	$ 5,000		$ 5,000