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Convertible Preferred Stock - Additional Information (Detail) - USD ($)
$ / shares in Units, $ in Thousands
 5 Months Ended 7 Months Ended 12 Months Ended
May 19, 2020
Jul. 16, 2019
Dec. 31, 2018
Aug. 13, 2018
Dec. 31, 2020
Dec. 31, 2019
Temporary Equity [Line Items]            
Issuance of Series B Convertible Preferred Stock     $ 0 $ 0 $ 0 $ 175,000
Conversion price per share (in dollars per share)   $ 4.00     $ 4.00  
Series A 10% Convertible Preferred Stock            
Temporary Equity [Line Items]            
Convertible preferred stock issued/ sold (in shares)   210,000        
Redemption value of convertible preferred stock issued   $ 210,000        
Fair value of convertible preferred stock issued   $ 200,000        
Aggregate amount of redemption requirement $ 210,000          
Accrued and unpaid dividends $ 2,900          
Preferred stock, quarterly dividends rate         10.00% 10.00%
Series B Convertible Preferred Stock            
Temporary Equity [Line Items]            
Convertible preferred stock issued/ sold (in shares)   175,000        
Issuance of Series B Convertible Preferred Stock   $ 175,000        
Preferred stock, quarterly dividends rate         10.00% 10.00%
Series B Convertible Preferred Stock | Covey Park Equity Owners            
Temporary Equity [Line Items]            
Aggregate common stock upon conversion         43,750,000  
Series A and Series B Convertible Preferred Stock | Covey Park Equity Owners            
Temporary Equity [Line Items]            
Aggregate common stock upon conversion           96,250,000