Schedule of Other Expense Net (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 29, 2014	Jun. 30, 2013	Jun. 29, 2014	Jun. 30, 2013
Components of Other Income (Expense) [Line Items]
Interest expense	$ 2.1	$ 1.6	$ 3.4	$ 3.3
Interest income	(0.2)	(0.1)	(0.4)	(0.3)
Other (income) expense, net	0.7	0.1	0.7	3.2
Other expense, net	$ 2.6	$ 1.6	$ 3.7	$ 6.2