Condensed Consolidated Statements Of Comprehensive Income (Loss) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Apr. 01, 2012	Apr. 03, 2011
Condensed Consolidated Statements Of Comprehensive Income (Loss) [Abstract]
Net loss:	$ (242,090)	$ (6,077)
Other comprehensive loss:
Foreign currency translation adjustments	3,501	4,920
Unrealized gain (loss) on investment, net of tax of $0 and $(2), respectively	11	(4)
Amortization of benefit plan costs, net of tax of $0 and $(221), respectively	(2,119)	399
Other comprehensive income (loss), net of tax	1,393	5,315
Total comprehensive loss	$ (240,697)	$ (762)