CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $) In Millions, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2012	Sep. 29, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Oct. 01, 2011	Jul. 02, 2011	Apr. 02, 2011	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Statement of Comprehensive Income [Abstract]
Net (loss) income	$ (80.1)	$ 17.8	$ 8.4	$ (1.0)	$ (20.9)	$ 41.2	$ 5.4	$ 25.9	$ (55.0)	$ 51.5	$ 54.4
Other comprehensive income (loss):
Pension and postretirement liability adjustments, net of $0.8, $3.9 and $1.0 tax benefit									(0.1)	(7.1)	(1.7)
Change in fair value of cash flow hedges, net of $0.0, $0.1 and $0.1 tax benefit									0	(0.2)	(0.3)
Reclassification adjustment for hedge gains and losses included in net (loss) income, net of $0.0, $0.2 and $0.1 tax benefit									0.1	0.5	0.1
Foreign currency translation adjustments									11.7	(14.4)	1.1
Total other comprehensive income (loss)									11.7	(21.2)	(0.8)
Comprehensive (loss) income									$ (43.3)	$ 30.3	$ 53.6