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Commitments and Contingencies - Legal Proceedings (Details)
$ in Thousands
Aug. 02, 2019
USD ($)
Dec. 31, 2019
USD ($)
Aug. 31, 2019
action
Loss Contingencies [Line Items]      
Stockholder derivative actions | action     3
Milbeck Federal Securities Litigation      
Loss Contingencies [Line Items]      
Agreement to settle $ 28,250    
Insurance Settlements Receivable   $ 28,250  
Loss Contingency Accrual   $ 28,250