Stockholders' Equity - Accumulated Other Comprehensive Income (Loss), Net of Tax (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance	$ 1,077,964	$ 999,433
Other comprehensive income (loss) before reclassifications	(14,629)	(18,678)
Adjustments for items reclassified to earnings, net of tax	849	1,336
Net other comprehensive income (loss)	(13,780)	(17,342)
Balance	969,628	866,699
Currency Translation Adjustments [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance	(92,178)	(67,724)
Other comprehensive income (loss) before reclassifications	(18,068)	(19,743)
Adjustments for items reclassified to earnings, net of tax	0	0
Net other comprehensive income (loss)	(18,068)	(19,743)
Balance	(110,246)	(87,467)
Employee Benefit Plans [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance	(131,669)	(170,644)
Other comprehensive income (loss) before reclassifications	3,439	1,065
Adjustments for items reclassified to earnings, net of tax	849	1,336
Net other comprehensive income (loss)	4,288	2,401
Balance	(127,381)	(168,243)
AOCI Attributable to Noncontrolling Interest [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive income (loss) before reclassifications	(1)	1
Net other comprehensive income (loss)	(1)	1
Balance	(1)	1
Accumulated Other Comprehensive Income (Loss), Net of Tax [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance	(223,847)	(238,368)
Other comprehensive income (loss) before reclassifications	(14,628)	(18,679)
Adjustments for items reclassified to earnings, net of tax	849	1,336
Net other comprehensive income (loss)	(13,779)	(17,343)
Balance	(237,626)	(255,711)
Total AOCI [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance	(223,847)	(238,368)
Balance	$ (237,627)	$ (255,710)