Restructuring, Reorganization, Relocation and Severance (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Apr. 01, 2012	Apr. 03, 2011
Restructuring Cost and Reserve [Line Items]
Restructuring, reorganization, relocation and severance	$ 0	$ 285
Restructuring Reserve [Roll Forward]
Beginning accrued liability	2,213
Charged to expense, net	0
Expenditures	0
Write-offs and adjustments	52
Ending accrued liability	2,265
Employee Severance [Member]
Restructuring Reserve [Roll Forward]
Beginning accrued liability	113
Charged to expense, net	0
Expenditures	0
Write-offs and adjustments	52
Ending accrued liability	165
Manufacturing Transfer [Member]
Restructuring Reserve [Roll Forward]
Beginning accrued liability	2,100
Charged to expense, net	0
Expenditures	0
Write-offs and adjustments	0
Ending accrued liability	2,100
Manufacturing Transfer Plan [Member] | Manufacturing Transfer [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring, reorganization, relocation and severance	$ 0