Accumulated Other Comprehensive Loss - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During the Period Related to Translation of Foreign Subsidiaries Utilizing a Functional Currency Other Than the US Dollar	$ (1,576)	$ 6,045	$ (38,015)	$ 803
Unrecognized Net Defined Benefit Plan Costs [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other Comprehensive (Loss) Reclassification Adjustment from AOCI, Pension and other Postretirement Benefit Plans, before tax	(2,500)		(4,900)
Benefit for Income Taxes	700		1,300
Amortization of net actuarial (losses), before tax	(2,900)		(5,700)
Net prior service credit arising during period, before tax	400		800
Accumulated Translation Adjustment [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During the Period Related to Translation of Foreign Subsidiaries Utilizing a Functional Currency Other Than the US Dollar	10,200		(22,700)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period Related to Intra-Entity Transactions of a Long-Term Investment Nature, Net of Tax	100		(2,900)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Related to Net Investment Hedges, before Reclassification and Tax	(15,600)		(16,200)
Foreign currency translation, tax benefit (provision) related to net investment hedges	$ 3,600		$ 3,800