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Retirement Plans - Defined Benefit Plan, Amounts Recognized in Other Comprehensive Income (Loss) (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Defined Benefit Plan Disclosure [Line Items]
Total recognized in other comprehensive (loss) income	$ 7,381	$ (42,070)	$ (11,780)
United States [Member] | Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Net gain (loss) arising during the year	32	(10,616)	8,879
Net loss	27	48,239	2,925
Total recognized in other comprehensive (loss) income	59	37,623	11,804
United States [Member] | Retiree Healthcare Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Prior service (cost) credit		130
Net gain (loss) arising during the year	(648)	(670)	13
Prior service credit	(19)	(19)
Total recognized in other comprehensive (loss) income	(667)	(559)	13
Non-U.S. Pension Plans [Member] | Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Prior service (cost) credit		44	(636)
Net gain (loss) arising during the year	(8,940)	4,088	1,609
Prior service credit	(108)	(35)	(168)
Net loss	2,079	680	1,191
Other Plans	18	(354)
Currency impact	178	583	(2,033)
Total recognized in other comprehensive (loss) income	$ (6,773)	$ 5,006	$ (37)

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Amount, before tax, of cost (credit) of benefit change attributable to participants' prior service from plan amendment or plan initiation of defined benefit plan, that has not been recognized in net periodic benefit cost (credit).

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Amount, before tax, of reclassification adjustment from accumulated other comprehensive (income) loss for prior service cost (credit) of defined benefit plan.

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