CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $) In Millions, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2013	Oct. 05, 2013	Jul. 06, 2013	Apr. 06, 2013	Dec. 31, 2012	Sep. 29, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME [Abstract]
Net (loss) income	$ (47.1)	$ 29.7	$ (3.2)	$ 0.9	$ (80.1)	$ 17.8	$ 8.4	$ (1.0)	$ (19.7)	$ (55.0)	$ 51.5
Other comprehensive income (loss):
Pension and postretirement liability adjustments, net of $(4.3), $0.9 and $3.9 tax (provision) benefit									6.7	(0.1)	(7.1)
Change in fair value of cash flow hedges, net of $(0.2), $0.0 and $0.1 tax (provision) benefit									0.5	0	(0.2)
Reclassification adjustment for hedge gains and losses included in net (loss) income, net of $(0.2), $0.0 and $0.3 tax (provision) benefit									(0.6)	0.1	0.5
Foreign currency translation adjustments									5.2	11.7	(14.4)
Total other comprehensive income (loss)									11.8	11.7	(21.2)
Comprehensive (loss) income									$ (7.9)	$ (43.3)	$ 30.3