Quarterly report pursuant to Section 13 or 15(d)

Long-Term Debt - Property and Equipment Loan (Details)

v3.21.2
Long-Term Debt - Property and Equipment Loan (Details) - USD ($)
$ in Thousands
1 Months Ended 3 Months Ended 9 Months Ended
Dec. 17, 2020
Sep. 26, 2018
May 31, 2021
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Apr. 30, 2021
Dec. 31, 2020
Jul. 02, 2018
Debt Instrument [Line Items]                    
Principal amount     $ 53,500              
Property and equipment loan                    
Debt Instrument [Line Items]                    
Principal amount $ 900                 $ 2,000
Borrowings   $ 2,000                
Debt term 3 years 3 years                
Outstanding debt     600 $ 0   $ 0     $ 833  
Principal payments               $ 200    
Effective interest rate during period (as a percent)       0.00% 4.30% 5.90% 4.80%      
Property and equipment loan | Interest Expense                    
Debt Instrument [Line Items]                    
Deferred loan fees written off to interest expense (less than)     $ 100              
Property and equipment loan | Prime                    
Debt Instrument [Line Items]                    
Basis spread on variable rate (as a percent) 1.00% 1.00%