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Commitment and Contingencies (Details) - USD ($)
3 Months Ended
Jan. 20, 2020
Mar. 31, 2020
Dec. 31, 2019
Loss Contingencies [Line Items]      
Subscription agreement amount   $ 2,600,000  
Unfunded commitments   $ 0  
Aegis | Breach of contract      
Loss Contingencies [Line Items]      
Maximum litigation reimbursement amount $ 900,000    
Percentage of future losses reimbursable   60.00%  
Estimate of possible loss   $ 4,800,000  
Settlement amount   $ 0  
CMC | Subsidiaries      
Loss Contingencies [Line Items]      
Indirect ownership percentage owned by parent     81.00%
CMC | Subsidiaries | DGI      
Loss Contingencies [Line Items]      
Remaining ownership percentage owned by noncontrolling interest     19.00%