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Other Current Assets and Other Current Liabilities (Details) - USD ($)
$ in Millions
Dec. 31, 2018
Dec. 31, 2017
Other Current Assets And Other Current Liabilities [Line Items]    
Accrued sales tax $ 44.9  
Accrued interest 16.4  
Accrued payroll and benefits 10.7  
Accrued capital expenditures $ 7.9  
Predecessor    
Other Current Assets And Other Current Liabilities [Line Items]    
Accrued equipment and other asset purchases   $ 27.8
Accrued payroll and benefits   8.3
Accrued property taxes   0.7
Prepaid expenses   $ 3.8