Accumulated Other Comprehensive Income (Loss) - Summary of Changes in Accumulated Other Comprehensive Income (Detail) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2020	Mar. 31, 2019
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance	$ 891,783
Other comprehensive income before reclassifications	(40,374)	$ 3,687
Amounts reclassified from AOCI	(2)	541
Remeasurement adjustment related to the Tax Act (1)		(5,325)
Net current-period other comprehensive income	(40,376)	(1,097)
Ending Balance	866,778
Foreign Currency Translation Adjustments [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance	(104,037)	(108,481)
Other comprehensive income before reclassifications	(41,182)	3,687
Net current-period other comprehensive income	(41,182)	3,687
Ending Balance	(145,219)	(104,794)
Defined Benefit Pension Plan Adjustments [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance	(32,205)	(33,083)
Other comprehensive income before reclassifications	808
Amounts reclassified from AOCI		543
Remeasurement adjustment related to the Tax Act (1)		(5,325)
Net current-period other comprehensive income	808	(4,782)
Ending Balance	(31,397)	(37,865)
Cash Flow Hedge Adjustments [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance	72	81
Amounts reclassified from AOCI	(2)	(2)
Net current-period other comprehensive income	(2)	(2)
Ending Balance	70	79
AOCI Attributable to Parent [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance	(136,170)	(141,483)
Ending Balance	$ (176,546)	$ (142,580)

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Amount after tax, before reclassification adjustments of other comprehensive income (loss).

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