Annual report pursuant to Section 13 and 15(d)

Revenue Recognition - Additional Information (Details)

v3.20.4
Revenue Recognition - Additional Information (Details) - USD ($)
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]    
Impairment charges related to contract assets $ 0 $ 0
Minimum | Accounts Receivable    
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]    
Payment terms 30 days  
Maximum | Accounts Receivable    
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]    
Payment terms 90 days