Retirement Plans - Schedule of Benefit Payments Expected to be Paid (Detail) $ in Millions	Dec. 31, 2016 USD ($)
Schedule of Expected Future Pension Benefit Payment [Line Items]
FY 2017	$ 2.9
FY 2018	2.8
FY 2019	2.5
FY 2020	2.5
FY 2021	2.4
FY 2022 through FY 2026	13.0
U.S. Plan [Member]
Schedule of Expected Future Pension Benefit Payment [Line Items]
FY 2017	0.9
FY 2018	0.9
FY 2019	0.8
FY 2020	0.8
FY 2021	0.8
FY 2022 through FY 2026	4.5
International Plans [Member]
Schedule of Expected Future Pension Benefit Payment [Line Items]
FY 2017	2.0
FY 2018	1.9
FY 2019	1.7
FY 2020	1.7
FY 2021	1.6
FY 2022 through FY 2026	$ 8.5