Quarterly report pursuant to Section 13 or 15(d)

Intangible Assets, Net - Additional Information (Detail)

v3.20.2
Intangible Assets, Net - Additional Information (Detail) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Dec. 31, 2019
Amortization expenses of intangible assets $ 664 $ 705 $ 2,069 $ 1,401 $ 2,107
Intangible assets wrote off due to disposal     6    
Accumulated amortization of intangible assets related to disposal     5    
Non-compete Agreement [Member]          
Intangible assets wrote off due to disposal     6    
Accumulated amortization of intangible assets related to disposal     $ 5