Restructuring, Reorganization, Relocation and Severance (Details) (USD $)	3 Months Ended		9 Months Ended								3 Months Ended		9 Months Ended	3 Months Ended		9 Months Ended	3 Months Ended		9 Months Ended	3 Months Ended		9 Months Ended	3 Months Ended	9 Months Ended	3 Months Ended	12 Months Ended	3 Months Ended		9 Months Ended	3 Months Ended		9 Months Ended	3 Months Ended		9 Months Ended	3 Months Ended		9 Months Ended	3 Months Ended		9 Months Ended
	Sep. 28, 2014	Sep. 29, 2013	Sep. 28, 2014	Sep. 29, 2013	Sep. 28, 2014 Second Quarter 2014 Restructuring Plan [Member]	Sep. 28, 2014 Group Structure Reorganization [Member]	Sep. 29, 2013 Group Structure Reorganization [Member]	Sep. 28, 2014 First Quarter 2014 Restructuring Plan [Member]	Sep. 28, 2014 Second Quarter 2014 Restructuring Plan [Member]	Sep. 28, 2014 Second Quarter 2014 Restructuring Plan [Member] Realignment Costs [Member]	Sep. 28, 2014 Second Quarter 2014 Restructuring Plan [Member] Acquisition Related Earn Out [Member]	Jun. 29, 2014 Second Quarter 2014 Restructuring Plan [Member] Acquisition Related Earn Out [Member]	Sep. 28, 2014 Second Quarter 2014 Restructuring Plan [Member] Acquisition Related Earn Out [Member]	Sep. 28, 2014 Second Quarter 2014 Restructuring Plan [Member] Inventory Write-offs [Member]	Jun. 29, 2014 Second Quarter 2014 Restructuring Plan [Member] Inventory Write-offs [Member]	Sep. 28, 2014 Second Quarter 2014 Restructuring Plan [Member] Inventory Write-offs [Member]	Sep. 28, 2014 Second Quarter 2014 Restructuring Plan [Member] Impairment and Other Asset Write-off [Member]	Jun. 29, 2014 Second Quarter 2014 Restructuring Plan [Member] Impairment and Other Asset Write-off [Member]	Sep. 28, 2014 Second Quarter 2014 Restructuring Plan [Member] Impairment and Other Asset Write-off [Member]	Sep. 28, 2014 Second Quarter 2014 Restructuring Plan [Member] Restructuring Charges [Member]	Jun. 29, 2014 Second Quarter 2014 Restructuring Plan [Member] Restructuring Charges [Member]	Sep. 28, 2014 Second Quarter 2014 Restructuring Plan [Member] Restructuring Charges [Member]	Mar. 30, 2014 First Quarter 2014 Restructuring Plan [Member]	Sep. 28, 2014 First Quarter 2014 Restructuring Plan [Member]	Dec. 31, 2012 Group Structure Reorganization [Member]	Dec. 31, 2013 Group Structure Reorganization [Member]	Sep. 28, 2014 Realignment Costs [Member] Second Quarter 2014 Restructuring Plan [Member]	Jun. 29, 2014 Realignment Costs [Member] Second Quarter 2014 Restructuring Plan [Member]	Sep. 28, 2014 Realignment Costs [Member] Second Quarter 2014 Restructuring Plan [Member]	Sep. 28, 2014 Second Quarter 2014 Restructuring Plan [Member]	Jun. 29, 2014 Second Quarter 2014 Restructuring Plan [Member]	Sep. 28, 2014 Second Quarter 2014 Restructuring Plan [Member]	Sep. 28, 2014 General and Administrative Expense [Member] Second Quarter 2014 Restructuring Plan [Member]	Jun. 29, 2014 General and Administrative Expense [Member] Second Quarter 2014 Restructuring Plan [Member]	Sep. 28, 2014 General and Administrative Expense [Member] Second Quarter 2014 Restructuring Plan [Member]	Sep. 28, 2014 Cost of Sales [Member] Second Quarter 2014 Restructuring Plan [Member]	Jun. 29, 2014 Cost of Sales [Member] Second Quarter 2014 Restructuring Plan [Member]	Sep. 28, 2014 Cost of Sales [Member] Second Quarter 2014 Restructuring Plan [Member]	Sep. 28, 2014 Restructuring Charges [Member] Second Quarter 2014 Restructuring Plan [Member]	Jun. 29, 2014 Restructuring Charges [Member] Second Quarter 2014 Restructuring Plan [Member]	Sep. 28, 2014 Restructuring Charges [Member] Second Quarter 2014 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Actual savings anticipated by restructuring activity									$ 10,000,000															$ 1,800,000
Restructuring, reorganization, relocation and severance	7,699,000	0	11,259,000	1,090,000	9,928,000	0	1,090,000	1,331,000			0	2,500,000	2,500,000	230,000	755,000	985,000	1,831,000	466,000	2,297,000	7,699,000	2,228,000	11,259,000	1,300,000		2,900,000	1,100,000	9,760,000	5,949,000	17,041,000	9,760,000	5,949,000	17,041,000	1,831,000	2,966,000	4,797,000	230,000	755,000	985,000	7,699,000	2,228,000	11,259,000
Restructuring Reserve [Roll Forward]
Beginning accrued liability			50,000	2,692,000	0	50,000	2,692,000	0
Restructuring, reorganization, relocation and severance	7,699,000	0	11,259,000	1,090,000	9,928,000	0	1,090,000	1,331,000			0	2,500,000	2,500,000	230,000	755,000	985,000	1,831,000	466,000	2,297,000	7,699,000	2,228,000	11,259,000	1,300,000		2,900,000	1,100,000	9,760,000	5,949,000	17,041,000	9,760,000	5,949,000	17,041,000	1,831,000	2,966,000	4,797,000	230,000	755,000	985,000	7,699,000	2,228,000	11,259,000
Expenditures			(4,847,000)	(3,466,000)	(3,466,000)	(50,000)	(3,466,000)	(1,331,000)
Write-offs and adjustments				50,000			50,000
Ending accrued liability	6,462,000	366,000	6,462,000	366,000	6,462,000	0	366,000	0
Expected total cost of restructuring plan									$ 26,000,000	$ 24,000,000																$ 4,000,000