Commitments and Contingencies - Activity in Recorded Environmental Liabilities (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2020
Accrual for Environmental Loss Contingencies [Roll Forward]
Balance at beginning of period	$ 42,592
Expenditures	(918)
Accretion of discount	216
Foreign currency translation adjustments	(183)
Balance at end of period	$ 42,592	$ 41,707
Less amounts reported in Accrued expenses		9,379
Amounts reported in Other noncurrent liabilities		$ 32,328