Changes in Accumulated Other Comprehensive Income by Component Reclassifications Out of AOCI (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 29, 2014	Jun. 30, 2013	Jun. 29, 2014	Jun. 30, 2013	Jun. 29, 2014	Jun. 30, 2013
Accumulated Other Comprehensive Income (Loss) [Line Items]
Net effect of swaps	$ (315)	$ (2,273)	$ 56	$ 6,938	$ 1	$ 6,589
Income (loss) before taxes	51,090	59,050	(62,701)	(85,735)	151,481	86,869
Provision (benefit) for taxes	(7,188)	(11,660)	23,063	23,999	(21,179)	(17,917)
Net income (loss)	43,902	47,390	(39,638)	(61,736)	130,302	68,952
Reclassification out of Accumulated Other Comprehensive Income [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Income (loss) before taxes	1,986	1,986	3,971	10,160	7,943	9,811
Provision (benefit) for taxes	(307)	(307)	(614)	(1,536)	(1,228)	(1,482)
Net income (loss)	1,679	1,679	3,357	8,624	6,715	8,329
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	$ (1,986)	$ (1,986)	$ (3,971)	$ (10,160)	$ (7,943)	$ (9,811)