Retirement Plans - Defined Benefit Plan, Estimated Future Benefit Payments (Detail) $ in Thousands	Dec. 31, 2020 USD ($)
Estimated Future Benefit Payments [Abstract]
2021	$ 6,456
2022	4,877
2023	4,546
2024	4,738
2025	5,985
2026 - 2030	31,688
U.S. Retiree Healthcare Plan
Estimated Future Benefit Payments [Abstract]
2021	1,279
2022	1,338
2023	1,460
2024	1,534
2025	1,549
2026 - 2030	7,790
Non-U.S. Pension Plans [Member]
Estimated Future Benefit Payments [Abstract]
2021	5,177
2022	3,539
2023	3,086
2024	3,204
2025	4,436
2026 - 2030	$ 23,898

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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-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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- Definition

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

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

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

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

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

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