XML 77 R68.htm IDEA: XBRL DOCUMENT v3.20.2
Summary of Changes in Carrying Amount of Goodwill (Detail) - USD ($)
 3 Months Ended 9 Months Ended 12 Months Ended
Mar. 31, 2020
Sep. 30, 2020
Dec. 31, 2019
Goodwill And Intangible Assets Disclosure [Abstract]      
Balance as of December 31, 2019 $ 33,433,000 $ 33,433,000  
Adjustment to goodwill   (88,000) [1] $ (61,000)
Impairment of goodwill $ (14,200,000) (14,213,000) [2]  
Balance as of September 30, 2020   $ 19,132,000 $ 33,433,000
[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
[2] The impairment as of September 30, 2020 is recorded on the income statement within impairment of goodwill.