Derivative Financial Instruments Balance Sheet Location (Details) (USD $)	Mar. 29, 2015	Dec. 31, 2014	Mar. 30, 2014
Derivatives, Fair Value [Line Items]
Derivative Liability	$ (19,252,000)us-gaap_DerivativeLiabilitiesNoncurrent	$ (14,649,000)us-gaap_DerivativeLiabilitiesNoncurrent	$ (27,789,000)us-gaap_DerivativeLiabilitiesNoncurrent
Derivative assets (liabilities), at fair value, net	(29,241,000)	(26,440,000)	(27,789,000)
Derivative Liability, Current	9,989,000us-gaap_DerivativeLiabilitiesCurrent	11,791,000us-gaap_DerivativeLiabilitiesCurrent	0us-gaap_DerivativeLiabilitiesCurrent
Designated As Hedging [Member]
Derivatives, Fair Value [Line Items]
Derivative assets (liabilities), at fair value, net	(19,252,000)	(14,649,000)	(6,657,000)
Not Designated As Hedging [Member]
Derivatives, Fair Value [Line Items]
Derivative assets (liabilities), at fair value, net	(9,989,000)	(11,791,000)	(21,132,000)
Interest Rate Swap [Member] \| Designated As Hedging [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability	(19,252,000)	(14,649,000)	(6,657,000)
Interest Rate Swap [Member] \| Not Designated As Hedging [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability			21,132,000
Derivative Liability, Current	9,989,000	11,791,000	0
Cash Flow Hedging [Member] \| Forward-Starting Interest Rate Swap [Member]
Derivatives, Fair Value [Line Items]
Accumulated Other Comprehensive Income (Loss), Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Effect Net of Tax	$ 3,200,000

Accumulated change, net of tax, in accumulated gains and losses from derivative instruments designated and qualifying as the effective portion of cash flow hedges. Includes an entity's share of an equity investee's Increase or Decrease in deferred hedging gains or losses.

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Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, expected to be settled within one year or normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset.

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- Definition

Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, expected to be settled after one year or the normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset.

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