Annual report pursuant to Section 13 and 15(d)

Revenue Recognition - Additional Information (Detail)

v3.20.4
Revenue Recognition - Additional Information (Detail)
$ in Millions
12 Months Ended
Dec. 31, 2020
USD ($)
Segments
Disaggregation of Revenue [Line Items]  
Prepaid commission expense | $ $ 0.7
Number of operating segments | Segments 3
Minimum [Member]  
Disaggregation of Revenue [Line Items]  
Sale of subscription revenue term 3 months
Maximum [Member]  
Disaggregation of Revenue [Line Items]  
Sale of subscription revenue term 2 years