RESTRUCTURING CHARGES - Restructuring Accrual (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jul. 01, 2012	Jul. 03, 2011	Jul. 01, 2012	Jul. 03, 2011
Restructuring Reserve [Roll Forward]
Restructuring Reserve - Beginning Balance	$ 2,412		$ 2,743
Restructuring charges	831	(13)	1,551	(78)
Payments	(1,355)		(2,460)
Reserve adjustments	(10)		39
Foreign currency changes	(21)		(16)
Restructuring Reserve - Ending Balance	1,857		1,857
Employee Severance Costs
Restructuring Reserve [Roll Forward]
Restructuring Reserve - Beginning Balance	264		82
Restructuring charges	729		1,315
Payments	(833)		(1,295)
Reserve adjustments	(10)		53
Foreign currency changes	0		(5)
Restructuring Reserve - Ending Balance	150		150
Contract Termination Costs
Restructuring Reserve [Roll Forward]
Restructuring Reserve - Beginning Balance	2,148		2,661
Restructuring charges	0		0
Payments	(420)		(929)
Reserve adjustments	0		(14)
Foreign currency changes	(21)		(11)
Restructuring Reserve - Ending Balance	1,707		1,707
Other Costs
Restructuring Reserve [Roll Forward]
Restructuring Reserve - Beginning Balance	0		0
Restructuring charges	102		236
Payments	(102)		(236)
Reserve adjustments	0		0
Foreign currency changes	0		0
Restructuring Reserve - Ending Balance	$ 0		$ 0