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Stock Compensation Plans and Share-Based Compensation Awards - Awards, UAR, RSA (Details)
$ / shares in Units, shares in Thousands, $ in Thousands
3 Months Ended 5 Months Ended
May 25, 2018
employee
$ / shares
Mar. 31, 2020
USD ($)
$ / shares
shares
Mar. 31, 2019
USD ($)
May 23, 2018
USD ($)
Stock Compensation Plans and Share-Based Compensation Awards        
Share-based compensation expense   $ 3,585 $ 1,845  
RSAs        
Stock Compensation Plans and Share-Based Compensation Awards        
Fair value (in dollars per share) | $ / shares $ 16.00      
Share-based compensation expense     100 $ 0
Unrecognized compensation expense   $ 100 200  
Number of employees or former employees who held awards | employee 35      
Total fair value of share based awards vested     $ 200  
Number outstanding        
Balance at beginning of period (in shares) | shares   8    
Vested (in shares) | shares   (3)    
Balance at end of period (in shares) | shares   5    
Weighted average grant date fair value        
Balance at beginning of period (in dollars per share) | $ / shares   $ 16.00    
Vested (in dollars per share) | $ / shares   16.00    
Balance at end of period (in dollars per share) | $ / shares   $ 16.00    
RSAs | Maximum        
Stock Compensation Plans and Share-Based Compensation Awards        
Share-based compensation expense   $ 100    
Total fair value of share based awards vested   $ 100