XML 69 R60.htm IDEA: XBRL DOCUMENT v3.20.2
Acquisitions - Summary of Consideration for Acquisition (Detail) (Parenthetical) - USD ($)
 1 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2020
Sep. 30, 2020
Dec. 31, 2019
Business Acquisition [Line Items]      
Total consideration   $ 13,200,000 $ 11,800,000
Adjustment to goodwill   88,000 [1] $ 61,000
Sonar Acquisition      
Business Acquisition [Line Items]      
Total consideration $ 13,227,000 13,200,000  
Adjustment to goodwill   $ 88,000  
[1] Included working capital adjustments finalized subsequent to the Sonar acquisition in December 2019, resulting in total consideration of approximately $13.2 million and an adjustment to goodwill in the amount of $88,000 during the nine months ended September 30, 2020