Other Income (Expense) - Net - Computation of Other Income (Expense) - Net (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 28, 2013	Sep. 29, 2012	Sep. 28, 2013	Sep. 29, 2012
Other Income And Expenses [Abstract]
Interest income	$ 0.1		$ 0.3	$ 0.5
Foreign exchange loss	(0.9)	(0.2)	(3.4)	(0.9)
Other				(0.1)
Total other income (expense) - net	$ (0.8)	$ (0.2)	$ (3.1)	$ (0.5)