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Commitments and Contingencies - Narrative (Details) - USD ($)
May 08, 2020
Mar. 31, 2020
Dec. 31, 2019
Nov. 06, 2014
Loss Contingencies [Line Items]        
Common stock, shares issued (in shares)   47,571,416 46,810,676  
DBMG Class Action | Pending Litigation [Member] | Subsequent Event        
Loss Contingencies [Line Items]        
Settlement (in usd per share) $ 35.95      
Damages sought (shares) 568,550      
Damages sought $ 20,400,000      
Settlement, contribution 1,000,000.0      
Settlement, contribution from other party $ 8,100,000      
Litigation, ownership percentage 7.52%      
Litigation settlement, contribution (in usd per share) $ 3.51      
DBMG Class Action | Pending Litigation [Member] | Subsequent Event | Insurance [Member]        
Loss Contingencies [Line Items]        
Settlement, contribution $ 12,400,000      
DBMG Class Action Payment One | Pending Litigation [Member] | Subsequent Event        
Loss Contingencies [Line Items]        
Settlement (in usd per share) $ 2.51      
Damages sought (shares) 289,902      
Damages sought $ 700,000      
DBMG Class Action Payment Two | Pending Litigation [Member] | Subsequent Event        
Loss Contingencies [Line Items]        
Settlement (in usd per share) $ 1.00      
Damages sought $ 289,902      
DBMG        
Loss Contingencies [Line Items]        
Common stock, shares issued (in shares)       721,000