Schedule of Computation of Basic and Diluted Earnings Per Share (Detail) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 30, 2014	Mar. 31, 2013
Earnings Per Share Disclosure [Line Items]
Net income (loss)	$ (9.3)	$ (0.5)
Weighted average shares outstanding	125.4	127.2
Net income (loss) per share	$ (0.07)	$ 0.00
Assumed exercise of common stock equivalents
Diluted weighted average common and common equivalent shares	125.4	127.2
Net income (loss) per share	$ (0.07)	$ 0.00
Anti-dilutive common stock equivalents, non-vested stock, DSUs, RSUs, and PUs	3.1	4.1