XML 60 R48.htm IDEA: XBRL DOCUMENT v3.21.2
Commitments and Contingencies - Additional Information (Details) - USD ($)
$ in Millions
Jun. 30, 2021
Dec. 31, 2020
Commitments And Contingencies Disclosure [Abstract]    
Environmental liabilities $ 5.7 $ 3.9
Other Assets [Member]    
Commitments And Contingencies Disclosure [Abstract]    
Indemnification assets related to third party escrow funds, state funds or insurance $ 4.2 $ 3.1