Revenue - Schedule of Company-wide Geographic Data (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	Aug. 31, 2017		Sep. 30, 2018
Disaggregation of Revenue [Line Items]
Total	$ 41,725	[1]		$ 148,109			$ 444,396
United States
Disaggregation of Revenue [Line Items]
Total	26,646			97,679			289,178
Canada
Disaggregation of Revenue [Line Items]
Total	3,100			11,402			35,677
Mexico
Disaggregation of Revenue [Line Items]
Total	5,212			16,767			48,305
France
Disaggregation of Revenue [Line Items]
Total	3,763			11,944			38,981
All other countries
Disaggregation of Revenue [Line Items]
Total	$ 3,004			$ 10,317			$ 32,255
Predecessor
Disaggregation of Revenue [Line Items]
Total			$ 81,518		$ 353,926	[1]
Predecessor | United States
Disaggregation of Revenue [Line Items]
Total			54,641		222,186
Predecessor | Canada
Disaggregation of Revenue [Line Items]
Total			6,248		26,897
Predecessor | Mexico
Disaggregation of Revenue [Line Items]
Total			8,659		37,418
Predecessor | France
Disaggregation of Revenue [Line Items]
Total			5,439		25,216
Predecessor | All other countries
Disaggregation of Revenue [Line Items]
Total			$ 6,531		$ 42,209

[1] * Adjusted due to the adoption of ASU No. 2017-07, "Compensation – Retirement Benefits (Topic 715): Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost." See Note 3 - New Accounting Standards, for additional information.