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Equity (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 6 Months Ended
Jan. 02, 2019
Mar. 31, 2019
Jun. 30, 2020
Jun. 30, 2019
Dec. 31, 2019
Dec. 31, 2018
Class of Stock [Line Items]            
Proceeds from the issuance of stock     $ 0 $ 31,057    
Payments on bridge term loan     $ 0 $ 31,382    
Shares outstanding of successor company (in shares) 15,614,981   15,761,000   15,735,000  
Bridge Term Loan            
Class of Stock [Line Items]            
Conversion of loan to common stock $ 1,100          
Carrying value of debt     $ 543   $ 725 $ 32,500
Payments on bridge term loan 31,400          
Common Stock            
Class of Stock [Line Items]            
Issuance of common stock for rights offering (in shares)   3,382,000        
Rights Offering | Common Stock            
Class of Stock [Line Items]            
Proceeds from the issuance of stock 31,400          
Aggregate offering price $ 32,500          
Aggregate shares sold (in shares) 3,381,894          
Purchase price (usd per share) $ 9.61          
Issuance of common stock for rights offering (in shares) 3,381,894