Annual report pursuant to Section 13 and 15(d)

Contingent Earn-Out Consideration - Additional Information (Detail)

v3.20.1
Contingent Earn-Out Consideration - Additional Information (Detail) - USD ($)
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Business Acquisition, Contingent Consideration [Line Items]    
Estimated contingent earn-out $ 19,000 $ 55,000
Increase (Decrease) in contingent earn-out liabilities 41,000 76,000
Cash payments for contingent earn-out consideration $ 0 $ 100,000