Acquisition Integration Initiatives (Details) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 28, 2014
Restructuring Reserve [Roll Forward]
Balance as of December 28, 2013	$ 2,388
Expenses	3,983
Payments	4,131
Balance as of June 28, 2014	2,240
Employee Severance [Member]
Restructuring Reserve [Roll Forward]
Balance as of December 28, 2013	1,619
Expenses	3,640
Payments	3,413
Balance as of June 28, 2014	1,846
Inventory and Product [Member]
Restructuring Reserve [Roll Forward]
Balance as of December 28, 2013	584
Expenses	44
Payments	392
Balance as of June 28, 2014	236
Facility Closing [Member]
Restructuring Reserve [Roll Forward]
Balance as of December 28, 2013	77
Expenses	299
Payments	307
Balance as of June 28, 2014	69
Other Restructuring [Member]
Restructuring Reserve [Roll Forward]
Balance as of December 28, 2013	108
Expenses	0
Payments	19
Balance as of June 28, 2014	$ 89