CONSOLIDATED STATEMENTS OF COMPREHENSIVE (LOSS) INCOME (Unaudited) (Parenthetical) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jul. 06, 2013	Jun. 30, 2012	Jul. 06, 2013	Jun. 30, 2012
Other comprehensive (loss) income:
Tax provision, Change in fair value of cash flow hedges	$ 0.1	$ 0.1	$ 0.2	$ 0.1
Tax (benefit) provision, Reclassification adjustment for hedge gains and losses included in net (loss) income	(0.1)	0	(0.1)	0
Tax benefit, Pension and postretirement liability adjustments	$ 0.1	$ 0	$ 0.2	$ 0