Accumulated Other Comprehensive Income (Loss) - Changes in Accumulated Other Comprehensive Income (Loss) (Additional Information) (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Additional Detail [Line Items]
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss), before Reclassification and Tax	$ (848)	$ (7,953)	$ 1,966	$ (10,240)
Other Comprehensive (Income) Loss, Defined Benefit Plan, before Reclassification Adjustment, Tax (Benefit) Expense	(918)	8,530	(907)	8,725
Other Comprehensive Income (Loss), Defined Benefit Plan, Loss Arising During Period, before Tax	3,224
Other Comprehensive Income (Loss), Defined Benefit Plan, Amortization of Actuarial Losses, Reclassification Adjustment from AOCI, before Tax	970	961	1,743	1,986
Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Credit, Reclassification Adjustment from AOCI, before Tax	34	81	113	159
Other Comprehensive (Income) Loss, Defined Benefit Plan, Reclassification Adjustment from AOCI, Tax Expense (Benefit)	(389)	234	(573)	487
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Tax Expense (Benefit)	429	(580)	882	701
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Tax Expense	217	$ 21	305	134
Adjustments for New Accounting Principle, Early Adoption [Member]
Additional Detail [Line Items]
Other Comprehensive (Income) Loss, Defined Benefit Plan, Reclassification Adjustment from AOCI, before Tax				8,569
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, before Tax				70
Settlement [Member]
Additional Detail [Line Items]
Other Comprehensive Income (Loss), Defined Benefit Plan, Settlement and Curtailment Gain (Loss), before Tax	(65)		(65)
Curtailment [Member]
Additional Detail [Line Items]
Other Comprehensive Income (Loss), Defined Benefit Plan, Settlement and Curtailment Gain (Loss), before Tax	$ (204)		$ (204)	$ 1,188