Estimated Future Benefit Payments (Detail) $ in Millions	Dec. 31, 2016 USD ($)
U.S. Plan
Schedule of Pension Expected Future Benefit Payments [Line Items]
2017	$ 69.0
2018	69.1
2019	69.8
2020	68.6
2021	69.0
2022-2026	344.4
Non U.S. Plans
Schedule of Pension Expected Future Benefit Payments [Line Items]
2017	2.1
2018	2.5
2019	2.2
2020	2.8
2021	3.0
2022-2026	19.3
Supplemental Plan
Schedule of Pension Expected Future Benefit Payments [Line Items]
2017	9.0
2018	11.3
2019	12.6
2020	12.3
2021	11.9
2022-2026	$ 56.2

Schedule of Pension Expected Future Benefit Payments [Line Items]

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- Definition

Amount of benefits from a defined benefit plan expected to be paid in the five fiscal years after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e1928-114920

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- Definition

Amount of benefits from a defined benefit plan expected to be paid in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

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- Definition

Amount of benefits from a defined benefit plan expected to be paid in the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

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- Definition

Amount of benefits from a defined benefit plan expected to be paid in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

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- Definition

Amount of benefits from a defined benefit plan expected to be paid in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

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Amount of benefits from a defined benefit plan expected to be paid in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

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