Derivative Financial Instruments Balance Sheet Location (Details) - USD ($) $ in Thousands	Sep. 25, 2016	Dec. 31, 2015	Sep. 27, 2015
Derivatives, Fair Value [Line Items]
Derivative Liability	$ (30,185)	$ (22,918)	$ (24,042)
Derivative assets (liabilities), at fair value, net	(30,185)	(22,918)	(27,812)
Current derivative liability	0	0	(3,770)
Designated As Hedging [Member]
Derivatives, Fair Value [Line Items]
Derivative assets (liabilities), at fair value, net	0	(22,918)	(24,042)
Not Designated As Hedging [Member]
Derivatives, Fair Value [Line Items]
Derivative assets (liabilities), at fair value, net	(30,185)	0	(3,770)
Interest Rate Swap [Member] | Designated As Hedging [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability	0	(22,918)	(24,042)
Interest Rate Swap [Member] | Not Designated As Hedging [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability	(30,185)	0	0
Current derivative liability	$ 0	$ 0	$ (3,770)