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Incentive Plan - Restricted Stock Narrative (Details)
$ in Thousands
1 Months Ended 12 Months Ended
May 15, 2019
shares
May 21, 2018
shares
Aug. 31, 2017
Dec. 31, 2019
USD ($)
shares
Dec. 31, 2018
USD ($)
Restricted Stock Units          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Total fair value of share-based awards vested | $       $ 300 $ 1,400
Vesting period     2 years    
Performance shares          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Shares issued in period       284,625  
Fair value at grant date | $       $ 3,300  
Fair value of units vested | $       $ 1,000 5,500
Granted during period (in shares)       0  
Restricted stock          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Fair value of units vested | $       $ 33 $ 77
Granted during period (in shares)       653,160  
Restricted stock | Non-employee          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Vesting period   10 months      
Granted during period (in shares) 120,000 48,400      
Restricted stock | Members of management          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Vesting period 3 years        
Granted during period (in shares) 533,160        
Maximum | Performance shares          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Units as a percent of initial award       1.50