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Severance - Additional Information (Details)
$ in Thousands
3 Months Ended
Apr. 10, 2020
USD ($)
Apr. 08, 2020
Employee
Jun. 30, 2020
USD ($)
Dec. 31, 2019
USD ($)
Restructuring Cost And Reserve [Line Items]        
Accrued liabilities     $ 5,661 $ 9,031
Transition Separation Agreement        
Restructuring Cost And Reserve [Line Items]        
Restructuring charges $ 1,100      
Accrued liabilities     800  
Reduction in Force        
Restructuring Cost And Reserve [Line Items]        
Number of employees terminated | Employee   95    
Restructuring charges     2,100  
Termination Benefits | Transition Separation Agreement        
Restructuring Cost And Reserve [Line Items]        
Payments for restructuring     $ 300