Restructuring and Other Charges (Details) (USD $)	3 Months Ended		6 Months Ended		3 Months Ended	6 Months Ended	12 Months Ended	3 Months Ended	6 Months Ended	3 Months Ended	6 Months Ended		3 Months Ended	6 Months Ended	3 Months Ended	6 Months Ended	3 Months Ended	6 Months Ended
	Jul. 02, 2011	Jul. 03, 2010	Jul. 02, 2011	Jul. 03, 2010	Jul. 02, 2011 Restructuring Plan 2010 [Member]	Jul. 02, 2011 Restructuring Plan 2010 [Member]	Jan. 01, 2011 Restructuring Plan 2010 [Member]	Jul. 02, 2011 Restructuring Plan 2010 [Member] Severance and Benefits [Member]	Jul. 02, 2011 Restructuring Plan 2010 [Member] Severance and Benefits [Member]	Jul. 02, 2011 Restructuring Plan 2010 [Member] Excess Facilities [Member]	Jul. 02, 2011 Restructuring Plan 2010 [Member] Excess Facilities [Member]	Jul. 02, 2011 Restructuring Plan 2010 [Member] Accounts Payable and Accrued Liabilities [Member]	Jul. 02, 2011 Other Restructuring Plans [Member]	Jul. 02, 2011 Other Restructuring Plans [Member]	Jul. 02, 2011 Other Restructuring Plans [Member] Severance and Benefits [Member]	Jul. 02, 2011 Other Restructuring Plans [Member] Severance and Benefits [Member]	Jul. 02, 2011 Other Restructuring Plans [Member] Excess Facilities [Member]	Jul. 02, 2011 Other Restructuring Plans [Member] Excess Facilities [Member]	Jul. 02, 2011 Other Restructuring Plans [Member] Others [Member]	Apr. 02, 2011 Other Restructuring Plans [Member] Others [Member]	Jan. 01, 2011 Other Restructuring Plans [Member] Others [Member]	Jul. 02, 2011 Severance and Benefits [Member]	Jul. 02, 2011 Estimated Lease Losses [Member]	Jul. 02, 2011 Accounts Payable and Accrued Liabilities [Member]	Jul. 02, 2011 Other Long Term Liabilities [Member]
Activity associated with Restructuring Plan
Beginning Balance					$ 3,151,000	$ 9,529,000		$ 2,177,000	$ 9,095,000	$ 974,000	$ 434,000		$ 5,387,000	$ 5,542,000	$ 26,000	$ 103,000	$ 5,356,000	$ 5,434,000	$ 5,000	$ 5,000	$ 5,000	$ 800,000	$ 6,700,000	$ 2,100,000	$ 5,400,000
Restructuring and other charges (credits)	751,000	(317,000)	710,000	(1,391,000)	622,000	776,000		(159,000)	(763,000)	781,000	1,539,000		129,000	(66,000)	(2,000)	(77,000)	131,000	11,000
Non-cash charges					1,000	3,000				1,000	3,000		71,000	134,000			71,000	134,000
Cash payments					(1,648,000)	(8,351,000)		(1,275,000)	(7,760,000)	(373,000)	(591,000)		(290,000)	(532,000)	(2,000)	(4,000)	(288,000)	(528,000)
Effect of foreign currency translation					43,000	212,000		27,000	198,000	16,000	14,000		42,000	261,000			42,000	261,000
Ending Balance	7,500,000		7,500,000		2,169,000	2,169,000	9,529,000	770,000	770,000	1,399,000	1,399,000		5,339,000	5,339,000	22,000	22,000	5,312,000	5,312,000	5,000	5,000	5,000	800,000	6,700,000	2,100,000	5,400,000
Restructuring and Other Charges (Textuals) [Abstract]
Amount accrued for restructuring plans	7,500,000		7,500,000		2,169,000	2,169,000	9,529,000	770,000	770,000	1,399,000	1,399,000		5,339,000	5,339,000	22,000	22,000	5,312,000	5,312,000	5,000	5,000	5,000	800,000	6,700,000	2,100,000	5,400,000
Maximum Amount of estimated lease losses based on changes in assumptions	10,000,000		10,000,000
Total cost associated with Restructuring Plan						14,000,000		8,300,000
Asset Impairment							3,700,000
Lease loss accruals			1,500,000		2,000,000	1,200,000
Severance costs paid to date						7,800,000
Total severance and termination benefit to be paid												800,000
Amount of charges related to vacated facilities					800,000	1,500,000
Severance And Related Benefits Credits					$ 200,000	$ 800,000