XML 60 R51.htm IDEA: XBRL DOCUMENT v3.20.1
Supplemental Financial Information - Additional Information (Details) - USD ($)
$ in Millions
1 Months Ended
Feb. 28, 2019
Feb. 28, 2019
Mar. 31, 2020
Dec. 31, 2019
Mar. 31, 2019
Dec. 31, 2018
Condensed Balance Sheet Statements, Captions [Line Items]            
Restricted cash     $ 1.3 $ 1.3    
Capital expenditures incurred but not yet paid     $ 24.7 $ 36.0 $ 38.5 $ 52.1
2019 Seller Loan            
Condensed Balance Sheet Statements, Captions [Line Items]            
Financed value $ 53.6 $ 53.6