Retirement Plans - Schedule of Components of Net Periodic Pension Cost (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 30, 2017	Dec. 31, 2016	Jan. 02, 2016
Benefit Plans [Line Items]
Service cost	$ 1.9	$ 2.1
Interest cost	0.6	0.2	$ 0.4
Expected return on plan assets	0.1	0.4	(0.5)
Amortization of prior service costs	0.0	0.0
Recognized net loss due to settlement		(0.1)
Amortization of net actuarial loss	0.0	0.0
Curtailment gain	(18.2)
Employees contribution	(0.4)	(0.2)
Net periodic pension cost	(2.9)	2.0	(0.1)
U.S. Plan [Member]
Benefit Plans [Line Items]
Interest cost	0.3	0.4	0.4
Expected return on plan assets	0.4	0.6	(0.5)
Amortization of prior service costs	0.0	0.0
Recognized net loss due to settlement		(0.1)
Amortization of net actuarial loss	0.0	0.0
Net periodic pension cost	0.1	0.1	$ (0.1)
International Plans [Member]
Benefit Plans [Line Items]
Service cost	1.9	2.1
Interest cost	0.3	0.2
Expected return on plan assets	(0.3)	(0.2)
Amortization of prior service costs	0.0	0.0
Amortization of net actuarial loss	0.0	0.0
Curtailment gain	(18.2)
Employees contribution	(0.4)	(0.2)
Net periodic pension cost	$ (3.0)	$ 1.9