Commitments and Contingencies (Tables)

3 Months Ended

Mar. 31, 2021

Commitments and Contingencies Disclosure [Abstract]

Summary of Balance Sheet Classification of Environmental Liabilities

These balances are broken down on the condensed consolidated balance sheets as follows:

	Balance sheet location	March 31, 2021		December 31, 2020
Current portion of environmental remediation obligations	Other current liabilities	$	0.5	$	0.4
Long-term portion of environmental remediation obligations	Other liabilities	3.1		3.0
Total		$	3.6	$	3.4

Schedule Of Indemnification Asset For Environmental Loss Contingencies

These balances are broken down on the condensed consolidated balance sheets as follows:

	Balance sheet location	March 31, 2021		December 31, 2020
Current portion of indemnification assets	Other current assets	$	0.5	$	0.4
Non-current portion of indemnification assets	Other assets	3.1		3.0
Total		$	3.6	$	3.4