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Description of Business (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2020
Jun. 30, 2020
Dec. 31, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]      
Decrease in rental revenue, percentage 6.00%    
Decrease in unit utilization, percentage 5.20%    
Decrease in horsepower utilization, percentage 4.50%    
Capital expenditures   $ 11.0 $ 69.9