Fair Value Measurement - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 27, 2015	Sep. 30, 2016	Sep. 27, 2015	Dec. 31, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impairment of long-lived assets held for sale			$ 3,700
Asset impairment charges and facility consolidation	$ 15,218	$ 0	18,946	$ 17,079
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Deferred compensation investments	31,300		31,300		$ 27,800
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of total long-term debt	$ 4,420,000		$ 4,420,000		$ 4,310,000