Retirement Benefit Plans - Summary of Benefits Expected to be Paid Out (Detail) $ in Millions	Dec. 31, 2019 USD ($)
U.S. and Puerto Rico [Member]
Schedule of Expected Future Pension Benefit Payment [Line Items]
2020	$ 20.2
2021	21.5
2022	22.4
2023	23.4
2024	23.8
2025-2029	126.1
Foreign [Member]
Schedule of Expected Future Pension Benefit Payment [Line Items]
2020	27.5
2021	29.7
2022	28.3
2023	29.5
2024	29.6
2025-2029	$ 158.9

Amount of benefits for defined benefit plan expected to be paid in five fiscal years after fifth fiscal year following latest fiscal year.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920

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Amount of benefits for defined benefit plan expected to be paid in next fiscal year following latest fiscal year.

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Amount of benefits for defined benefit plan expected to be paid in fifth fiscal year following latest fiscal year.

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Amount of benefits for defined benefit plan expected to be paid in fourth fiscal year following latest fiscal year.

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Amount of benefits for defined benefit plan expected to be paid in third fiscal year following latest fiscal year.

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Amount of benefits for defined benefit plan expected to be paid in second fiscal year following latest fiscal year.

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