Annual report pursuant to Section 13 and 15(d)

Revenue Recognition - Summary of Deferred Revenue Activity (Details)

v3.20.4
Revenue Recognition - Summary of Deferred Revenue Activity (Details)
$ in Thousands
12 Months Ended
Dec. 31, 2020
USD ($)
Change In Contract With Customer, Liability Rollforward [Roll Forward]  
Beginning balance $ 3,281
Deferral of revenue 1,922
Recognition of deferred revenue (1,901)
Ending balance $ 3,302