Accumulated Other Comprehensive Income (Loss) - Summary of Changes in Accumulated Other Comprehensive Income (Loss) (Detail) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance	[1]	$ 807,425
Other comprehensive income before reclassifications		8,556	$ (45,000)	$ 25,632
Amounts reclassified from AOCI		2,082	3,080	2,270
Remeasurement adjustment related to the Tax Act	[2]	(5,325)
Net current period other comprehensive income		5,313	(41,920)	27,902
Ending Balance	[1]	891,783	807,425
Foreign Currency Translation Adjustments [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance		(108,481)	(70,561)	(96,775)
Other comprehensive income before reclassifications		4,444	(37,920)	26,214
Net current period other comprehensive income		4,444	(37,920)	26,214
Ending Balance		(104,037)	(108,481)	(70,561)
Defined Benefit Pension Plan Adjustments [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance		(33,083)	(29,093)	(30,790)
Other comprehensive income before reclassifications		4,112	(7,080)	(582)
Amounts reclassified from AOCI		2,091	3,090	2,279
Remeasurement adjustment related to the Tax Act	[2]	(5,325)
Net current period other comprehensive income		878	(3,990)	1,697
Ending Balance		(32,205)	(33,083)	(29,093)
Cash Flow Hedge Adjustments [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance		81	91	100
Amounts reclassified from AOCI		(9)	(10)	(9)
Net current period other comprehensive income		(9)	(10)	(9)
Ending Balance		72	81	91
AOCI Attributable to Parent [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance		(141,483)	(99,563)	(127,465)
Ending Balance		$ (136,170)	$ (141,483)	$ (99,563)

[1] The 2018 amounts for the noted line items have been retrospectively changed from the amounts originally reported as a result of the Company’s first quarter 2019 change in method of accounting for U.S. inventory valuation from LIFO to FIFO.

[2] Amounts in parentheses denote expense to statement of income.