Stockholders' Equity Reclassifications Out of Accumulated Other Comprehensive Income (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended					12 Months Ended
	Mar. 31, 2013	Dec. 30, 2012	Sep. 23, 2012	Jun. 24, 2012	Mar. 25, 2012	Dec. 29, 2013		Dec. 30, 2012	Dec. 25, 2011
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Selling, general and administrative costs	$ 176,872	$ 186,501	$ 169,459	$ 172,820	$ 182,332	$ 706,354		$ 711,112	$ 687,558
Income tax expense(1)	1,780	(11,492)	2,539	(1,647)	(160)	73,165		(10,760)	(86,065)
Unrealized Loss on Available-For-Sale Security [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Income tax expense(1)						298
Unrealized Loss on Available-For-Sale Security [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Selling, general and administrative costs						729
Income tax expense(1)						298
Total reclassification, net of tax						431
Accumulated Defined Benefit Plans Adjustment [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Income tax expense(1)						71,601
Accumulated Defined Benefit Plans Adjustment [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total recognized in other comprehensive (income)/loss						(17,303)	[1]
Income tax expense(1)						(7,091)
Total reclassification, net of tax						(10,212)
Selling, General and Administrative Expenses [Member] | Accumulated Defined Benefit Plans Adjustment [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Prior service credit						(14,996)	[2]
Recognized actuarial loss						43,457	[2]
Discontinued Operations [Member] | Accumulated Defined Benefit Plans Adjustment [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Curtailments						(49,122)
Settlement						$ 3,358

[1] There were no reclassifications relating to noncontrolling interest for the year ended December 29, 2013.

[2] These accumulated other comprehensive income components are included in the computation of net periodic benefit cost for pension and other retirement benefits. See Note 11 and 12 for additional information