Annual report pursuant to Section 13 and 15(d)

Related Party Transactions - Additional Information (Details)

v3.21.1
Related Party Transactions - Additional Information (Details) - USD ($)
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Related Party Transaction [Line Items]      
Revenue from related parties     $ 0
ShotSpotter Labs      
Related Party Transaction [Line Items]      
Revenue from related parties $ 200,000 $ 600,000