Changes in Accumulated Other Comprehensive Income by Component Reclassifications Out of AOCI (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		12 Months Ended
	Mar. 30, 2014	Mar. 31, 2013	Mar. 30, 2014	Mar. 31, 2013
Accumulated Other Comprehensive Income (Loss) [Line Items]
Net effect of swaps	$ 371	$ 9,211	$ (1,957)	$ 8,689
Income (loss) before taxes	(113,791)	(144,785)	159,441	75,783
Provision (benefit) for taxes	30,251	35,659	(25,651)	(17,638)
Net income (loss)	(83,540)	(109,126)	133,790	58,145
Reclassification out of Accumulated Other Comprehensive Income [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Income (loss) before taxes	1,985	8,174	7,943	8,142
Provision (benefit) for taxes	(307)	(1,229)	(1,228)	(1,445)
Net income (loss)	1,678	6,945	6,715	6,697
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	$ (1,985)	$ (8,174)	$ (7,943)	$ (8,142)