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Condensed Consolidated Statements of Cash Flows (Parenthetical) - USD ($)
$ in Millions
6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Dec. 31, 2019
Capital expenditures incurred but not yet paid $ 3.9 $ 7.8  
Other Current Assets [Member]      
Restricted Cash 1.0 0.7 $ 0.8
Other Assets [Member]      
Restricted Cash $ 5.6 $ 6.8 $ 6.1