Quarterly report pursuant to Section 13 or 15(d)

Revenue Recognition - Additional Information (Details)

v3.21.1
Revenue Recognition - Additional Information (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2021
Dec. 31, 2020
Disaggregation of Revenue [Line Items]    
Deferred revenue $ 3,137 $ 3,302
Lease term 12 months  
Accounts receivable, net of allowances $ 2,276 $ 3,224
Contract with Customer, Liability, Non-Cancellable Backlog 890  
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-04-01    
Disaggregation of Revenue [Line Items]    
Remaining performance obligation, amount $ 1,193  
Remaining performance obligation, period 9 months  
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-01-01    
Disaggregation of Revenue [Line Items]    
Remaining performance obligation, amount $ 964  
Remaining performance obligation, period 1 year  
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-01-01    
Disaggregation of Revenue [Line Items]    
Remaining performance obligation, amount $ 980  
Remaining performance obligation, period  
Minimum    
Disaggregation of Revenue [Line Items]    
Accounts receivable payment terms 30 days  
Maximum    
Disaggregation of Revenue [Line Items]    
Accounts receivable payment terms 90 days