Comprehensive Income (Details) (USD $)	Jul. 01, 2012	Dec. 31, 2011
Accumulated other comprehensive income, net of related tax [Abstract]
Foreign currency translation adjustments	$ 23,200,000	$ 29,900,000
Unrecognized pension costs	(73,900,000)	(77,500,000)
Net gain (loss) on cash flow hedges	3,000,000	2,300,000
Accumulated other comprehensive income (loss)	$ (47,691,000)	$ (45,331,000)