Annual report pursuant to Section 13 and 15(d)

Revenue Recognition - Additional Information (Details)

v3.20.4
Revenue Recognition - Additional Information (Details) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Jan. 01, 2019
Disaggregation Of Revenue [Line Items]      
Total capitalized costs $ 2,889 $ 4,525  
Contract liabilities $ 5 $ 291  
Other Assets      
Disaggregation Of Revenue [Line Items]      
Total capitalized costs     $ 3,330