Acquisition Integration Initiatives (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 27, 2014
Restructuring Reserve [Roll Forward]
Balance as of December 28, 2013	$ 2,388
Expenses	4,110
Payments	5,950
Balance as of September 27, 2014	548
Employee Severance [Member]
Restructuring Reserve [Roll Forward]
Balance as of December 28, 2013	1,619
Expenses	3,641
Payments	4,832
Balance as of September 27, 2014	428
Inventory and Product [Member]
Restructuring Reserve [Roll Forward]
Balance as of December 28, 2013	584
Expenses	(151)
Payments	433
Balance as of September 27, 2014	0
Facility Closing [Member]
Restructuring Reserve [Roll Forward]
Balance as of December 28, 2013	77
Expenses	620
Payments	628
Balance as of September 27, 2014	69
Other Restructuring [Member]
Restructuring Reserve [Roll Forward]
Balance as of December 28, 2013	108
Expenses	0
Payments	57
Balance as of September 27, 2014	$ 51