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Receivables (Details) - USD ($)
$ in Millions
Jun. 30, 2021
Dec. 31, 2020
Receivables [Abstract]    
Trade receivables $ 281.0 $ 161.0
Income tax receivable 5.0 2.0
Other receivables 25.0 23.0
Allowance for doubtful accounts (2.0) (2.0)
Total $ 310.0 $ 184.0