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Revenue - Narrative (Details) - USD ($)
$ in Thousands
1 Months Ended 2 Months Ended 3 Months Ended 8 Months Ended 9 Months Ended
Sep. 30, 2017
Aug. 31, 2017
Sep. 30, 2018
Sep. 30, 2017
Aug. 31, 2017
Sep. 30, 2018
Sep. 30, 2017
Accounting Policies [Line Items]              
Description of revenue timing           Substantially all of the Company's customer contracts are for a duration of less than one year.  
Shipping and Handling              
Accounting Policies [Line Items]              
Shipping and handling costs $ 1,962   $ 6,662     $ 20,267  
Shipping and Handling | Predecessor              
Accounting Policies [Line Items]              
Shipping and handling costs   $ 4,432     $ 16,292    
Maximum              
Accounting Policies [Line Items]              
Sales revenue not recognized at shipment (as a percent)     2.00%     2.00%  
Maximum | Predecessor              
Accounting Policies [Line Items]              
Sales revenue not recognized at shipment (as a percent)       2.00%     2.00%