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Restructuring - Additional Information (Details)
12 Months Ended
Oct. 18, 2019
USD ($)
Position
Dec. 31, 2020
USD ($)
Dec. 31, 2019
USD ($)
Restructuring Cost And Reserve [Line Items]      
Restructuring and related activities, initiation date Oct. 18, 2019    
Expected number of positions eliminated | Position 160    
Restructuring and related charges $ 13,400,000   $ 13,401,000
Restructuring and related activities description   The Restructuring included a reduction in headcount of approximately 160 employees across the Company. The Company recorded a charge of $13.4 million in the fourth quarter of 2019 as a result of the Restructuring, which consisted of one-time termination benefits for employee severance, benefits and related costs, all of which resulted in cash expenditures and substantially all of which were paid out by December 31, 2020.  
Restructuring accrual   $ 462,000 9,201,000
Accounts payable and accrued expenses      
Restructuring Cost And Reserve [Line Items]      
Restructuring accrual   500,000 9,000,000.0
Other long-term liabilities      
Restructuring Cost And Reserve [Line Items]      
Restructuring accrual   $ 0 $ 200,000