Accumulated Other Comprehensive (Loss) Income - Changes in Accumulated Other Comprehensive (Loss) Income by Component (Detail) - USD ($) $ in Millions	6 Months Ended
	Jul. 01, 2017	Jul. 02, 2016
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	$ (117.9)	$ (76.2)
OCI before reclassifications	22.7	(12.1)
Amounts reclassified from AOCI	(1.7)	(2.5)
Net current-period OCI	21.0	(14.6)
Ending balance	(96.9)	(90.8)
Gains and Losses on Derivative Instruments [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	(0.1)	(4.7)
OCI before reclassifications	0.5	5.8
Amounts reclassified from AOCI	(1.5)	(2.7)
Net current-period OCI	(1.0)	3.1
Ending balance	(1.1)	(1.6)
Pension Benefit Plan Items [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	(14.4)	(10.1)
Amounts reclassified from AOCI	(0.2)	0.2
Net current-period OCI	(0.2)	0.2
Ending balance	(14.6)	(9.9)
Currency Translation Adjustment [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	(103.4)	(61.4)
OCI before reclassifications	22.2	(17.9)
Net current-period OCI	22.2	(17.9)
Ending balance	$ (81.2)	$ (79.3)