Restructuring And Other, Net (Schedule Of Restructuring And Other, Net) (Details) (USD $) In Thousands	3 Months Ended	6 Months Ended	12 Months Ended
	Apr. 03, 2011	Jul. 03, 2011	Dec. 31, 2010
Ending Balance		$ 2,847
Pre-2010 Activities [Member]
Beginning Balance	3,322	3,322	13,071
Change in estimate	(432)		(2,432)
Cash payments	(263)	(301)	(7,317)
Ending Balance	2,627	2,326	3,322
Pre-2010 Activities [Member] | Severance And Benefits [Member]
Beginning Balance	21	21	2,905
Change in estimate			240
Cash payments	(21)		(3,124)
Ending Balance			21
Pre-2010 Activities [Member] | Facility Exit Costs [Member]
Beginning Balance	3,301	3,301	10,166
Change in estimate	(432)		(2,672)
Cash payments	(242)	(301)	(4,193)
Ending Balance	2,627	2,326	3,301
Q1 2010 Activity [Member]
Provision			405
Cash payments			(405)
Q1 2010 Activity [Member] | Severance And Benefits [Member]
Provision			405
Cash payments			(405)
Q2 2010 Activity [Member]
Beginning Balance	488	488
Provision	202		890
Cash payments	(690)		(402)
Ending Balance			488
Q2 2010 Activity [Member] | Severance And Benefits [Member]
Beginning Balance	488	488
Provision	202		890
Cash payments	(690)		(402)
Ending Balance			488
Q3 2010 Activity [Member]
Beginning Balance	126	126
Provision			382
Change in estimate	(47)
Cash payments	(79)		(72)
Other			(184)
Ending Balance			126
Q3 2010 Activity [Member] | Severance And Benefits [Member]
Beginning Balance	126	126
Provision			382
Change in estimate	(47)
Cash payments	(79)		(72)
Other			(184)
Ending Balance			126
Q4 2010 Activity [Member]
Beginning Balance	98	98
Provision	117		98
Cash payments	(215)
Ending Balance			98
Q4 2010 Activity [Member] | Severance And Benefits [Member]
Beginning Balance	98	98
Provision	117		98
Cash payments	(215)
Ending Balance			98
Q1 2011 Activity [Member]
Provision	572
Cash payments	(241)	(154)
Ending Balance	331	177
Q1 2011 Activity [Member] | Severance And Benefits [Member]
Provision	572
Cash payments	(241)	(154)
Ending Balance	331	177
Q2 2011 Activity [Member]
Provision		344
Ending Balance		344
Q2 2011 Activity [Member] | Severance And Benefits [Member]
Provision		344
Ending Balance		344
Severance And Benefits [Member]
Ending Balance		521
Facility Exit Costs [Member]
Ending Balance		$ 2,326