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Accounts Receivable and Revenue Concentration - Narrative (Details) - USD ($)
3 Months Ended
Feb. 26, 2021
Mar. 31, 2021
Mar. 31, 2020
Receivables [Abstract]      
Bad debt expense   $ 0 $ 0
Workforce Reduction      
Restructuring Cost and Reserve [Line Items]      
Positions eliminated (in percentage) 35.00%    
Workforce Reduction | One-time Termination Benefits      
Restructuring Cost and Reserve [Line Items]      
Total estimated one-time costs of termination benefits $ 1,300,000 1,300,000  
Termination benefits paid   200,000  
Workforce Reduction | One-time Termination Benefits | Other accrued liabilities      
Restructuring Cost and Reserve [Line Items]      
Termination related costs accrued   1,100,000  
Workforce Reduction | One-time Termination Benefits | General and Administrative Expense      
Restructuring Cost and Reserve [Line Items]      
Termination related costs incurred   $ 1,000,000.0