Commitments and Contingencies (Tables)

3 Months Ended

Mar. 31, 2018

Commitments and Contingencies Disclosure [Abstract]

Activity in Recorded Environmental Liabilities

We had the following activity in our recorded environmental liabilities for the three months endedMarch 31, 2018, as follows (in thousands):

Beginning balance at December 31, 2017	$	39,808
Expenditures	(2,612		)
Accretion of discount	225
Additions and revisions of estimates	16,236
Foreign currency translation adjustments	786
Ending balance at March 31, 2018	54,443
Less amounts reported in Accrued expenses	5,060
Amounts reported in Other noncurrent liabilities	$	49,383