Changes in Accumulated Other Comprehensive Income by Component Reclassifications Out of AOCI (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 29, 2015	Mar. 30, 2014
Accumulated Other Comprehensive Income (Loss) [Line Items]
Net effect of swaps	$ 116	$ (371)
Provision (benefit) for taxes	44,394	30,251
Net loss	(83,833)	(83,540)
Reclassification out of Accumulated Other Comprehensive Income [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Provision (benefit) for taxes	(224)	(307)
Net loss	1,462	1,678
Interest Rate Contracts [Member] | Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Net effect of swaps	$ 1,686	$ 1,985