Consolidation Program and Restructuring Charge (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 29, 2013	Dec. 30, 2012	Sep. 29, 2013	Sep. 30, 2012	Sep. 29, 2013
Consolidation Program and Restructuring Charge [Abstract]
Restructuring and Related Cost, Number of Positions Eliminated			560
Restructuring Cost and Reserve [Line Items]
Costs of Sales			$ 8,493	$ 2,764
Product Development			3,515	2,479
Selling, distribution and administration			23,473	5,887
Restructuring and Related Cost, Cost Incurred to Date	4,093	36,045	35,481	11,130	71,526
Restructuring Reserve [Roll Forward]
Restructuring Reserve, Ending Balance	0		0		0
Breakdown of Current Period Pension Charges
Pension Charges Due to Settlements			3,526
Pension Charges Due to Curtailments			2,959
Curtailment/settlement losses			6,485
Facility Costs [Member]
Restructuring Reserve [Roll Forward]
Restructuring Reserve, Beginning Balance			1,157
Restructuring Reserve, Settled without Cash			1,157
Severance Costs [Member]
Restructuring Reserve [Roll Forward]
Restructuring Reserve, Beginning Balance			34,888
Restructuring Reserve, Current Period Charges			27,267
Restructuring Reserve, Settled with Cash			(24,620)
Restructuring Reserve, Ending Balance	37,535		37,535		37,535
Contract Termination [Member]
Restructuring Reserve [Roll Forward]
Restructuring Reserve, Beginning Balance			0
Restructuring Reserve, Current Period Charges			1,729
Restructuring Reserve, Settled with Cash			1,729
Restructuring Reserve, Ending Balance	0		0		0
Non-Cash Pension Charges [Member]
Restructuring Reserve [Roll Forward]
Restructuring Reserve, Beginning Balance			0
Restructuring Reserve, Current Period Charges			6,485
Restructuring Reserve, Settled without Cash			6,485
Restructuring Reserve, Ending Balance	$ 0		$ 0		$ 0