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Basis of Presentation and Summary of Significant Accounting Policies - Basis of Presentation (Details) - USD ($)
12 Months Ended
Jul. 12, 2017
Dec. 31, 2017
Dec. 31, 2018
Common Stock, par value (in dollars per share)   $ 0.0001 $ 0.0001
SourceHOV      
Fiscal period duration   365 days  
Novitex      
Fiscal period duration   172 days  
Quinpario      
Goodwill and other intangible assets recorded $ 0    
Net cash from trust 27,000,000    
Accrued fees payable $ 4,800,000