Commitments and Contingencies (Tables)

3 Months Ended

Mar. 31, 2021

Commitments And Contingencies Disclosure [Abstract]

Roll-forward of Remediation Reserves Included in Accrued Expenses and Other Liabilities

A roll-forward of remediation reserves included in accrued expenses and other liabilities on the Condensed Consolidated Balance Sheets is comprised of the following:

	As of
	March 31,			December 31,
	2021			2020
Balance at beginning of period	$	10,642		$	11,444
Remediation expense		199			2,769
Net remediation payments		(398	)		(3,639	)
Other activity(1)		(12	)		68
Balance at end of the period	$	10,431		$	10,642

⁽¹⁾ Other activity includes currency translation adjustments not recorded through remediation expense.