Accumulated Other Comprehensive Loss - Changes in Accumulated Other Comprehensive Income (Loss) (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Accumulated Other Comprehensive Income Loss Net Of Tax [Line Items]
Beginning Balance			$ (205,184)
Ending Balance	$ (209,714)		(209,714)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss), before Reclassification and Tax	(12,877)	$ 7,668	(4,235)	$ 3,279
Other Comprehensive (Income) Loss, Defined Benefit Plan, before Reclassification Adjustment, Tax (Benefit) Expense	(63)	(32)	(244)	(277)
Other Comprehensive Income (Loss), Defined Benefit Plan, Amortization of Actuarial Losses, Reclassification Adjustment from AOCI, before Tax	192	1,128	424	2,252
Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Credit, Reclassification Adjustment from AOCI, before Tax	44	63	93	128
Other Comprehensive (Income) Loss, Defined Benefit Plan, Reclassification Adjustment from AOCI, Tax Expense (Benefit)	(4)	(95)	(8)	(188)
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, Tax	142	182	81	66
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, Tax	153	92	155	141
Curtailment [Member]
Accumulated Other Comprehensive Income Loss Net Of Tax [Line Items]
Other Comprehensive Income (Loss), Defined Benefit Plan, Settlement and Curtailment Gain (Loss), before Tax		117		117
Cumulative currency translation adjustment [Member]
Accumulated Other Comprehensive Income Loss Net Of Tax [Line Items]
Beginning Balance	(130,375)	(142,899)	(138,751)	(136,579)
Other comprehensive income (loss) before reclassifications	(17,361)	8,522	(8,691)	2,202
Amounts reclassified from accumulated other comprehensive income (loss)	0	0	(294)	0
Ending Balance	(147,736)	(134,377)	(147,736)	(134,377)
Benefit plan liabilities [Member]
Accumulated Other Comprehensive Income Loss Net Of Tax [Line Items]
Beginning Balance	(64,319)	(103,340)	(65,303)	(106,079)
Other comprehensive income (loss) before reclassifications	1,831	(602)	2,538	1,041
Amounts reclassified from accumulated other comprehensive income (loss)	232	1,213	509	2,309
Ending Balance	(62,256)	(102,729)	(62,256)	(102,729)
Fair value change of derivatives [Member]
Accumulated Other Comprehensive Income Loss Net Of Tax [Line Items]
Beginning Balance	1,301	191	(1,130)	762
Other comprehensive income (loss) before reclassifications	(657)	1,008	1,815	576
Amounts reclassified from accumulated other comprehensive income (loss)	(366)	(257)	(407)	(396)
Ending Balance	278	942	278	942
Accumulated other comprehensive loss [Member]
Accumulated Other Comprehensive Income Loss Net Of Tax [Line Items]
Ending Balance	$ (209,714)	$ (236,164)	$ (209,714)	$ (236,164)