Contingencies (Details) In Thousands, unless otherwise specified	3 Months Ended	6 Months Ended	12 Months Ended	6 Months Ended
	Jun. 28, 2014 USD ($)	Jun. 28, 2014 USD ($)	Dec. 31, 2012 USD ($)	Jun. 28, 2014 Huntsville Site [Member] USD ($)	Jun. 28, 2014 Huntsville Site [Member] Investigation Report [Member] USD ($)	Jun. 28, 2014 Norco Site [Member] Remediation, Project Management, Regulatory Oversight, and Investigative and Feasability Studies [Member] USD ($)	Jun. 28, 2014 Tekelec Matter [Member] EUR (€)
Site Contingency [Line Items]
Litigation Settlement, Gross			$ 110,000
Environmental Costs Recovered	4,000	37,000
Environmental Remediation Expense To Date				4,000		46,000
Additional Expected Project Expenditures Low Estimate				3,000	500	16,130
Additional Expected Project Expenditures High Estimate				4,000	750	24,500
Loss Contingency, Range of Possible Loss, Maximum							11,333
Loss Contingency Damages Sought Value							3,742
Loss Contingency, Expenses Sought, Value							€ 312