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Receivables (Details) - USD ($)
$ in Millions
Sep. 30, 2020
Dec. 31, 2019
Receivables [Abstract]    
Trade receivables $ 183.0 $ 111.0
Income tax receivable 26.0 35.0
Other receivables 21.0 19.0
Allowance for doubtful accounts (2.0) (1.0)
Total $ 228.0 $ 164.0