Acquisition Integration Initiatives (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 29, 2014
Restructuring Reserve [Roll Forward]
Balance as of December 28, 2013	$ 2,388
Expenses	2,647
Payments	2,150
Balance as of March 29, 2014	2,885
Employee Severance [Member]
Restructuring Reserve [Roll Forward]
Balance as of December 28, 2013	1,619
Expenses	2,548
Payments	1,707
Balance as of March 29, 2014	2,460
Inventory and Product [Member]
Restructuring Reserve [Roll Forward]
Balance as of December 28, 2013	584
Expenses	9
Payments	334
Balance as of March 29, 2014	259
Facility Closing [Member]
Restructuring Reserve [Roll Forward]
Balance as of December 28, 2013	77
Expenses	90
Payments	98
Balance as of March 29, 2014	69
Other Restructuring [Member]
Restructuring Reserve [Roll Forward]
Balance as of December 28, 2013	108
Expenses	0
Payments	11
Balance as of March 29, 2014	$ 97