Acquisition - Additional Information (Detail) - USD ($) $ in Thousands		3 Months Ended	9 Months Ended
	Jun. 04, 2020	Sep. 30, 2020	Sep. 30, 2020	Jul. 31, 2020	Dec. 31, 2019
Business Acquisition Contingent Consideration [Line Items]
Acquisition of equity	100.00%
Contingent consideration	$ 10,300
Fair value	$ 600
EIS revenue		$ 5,300	$ 5,800
Net revenue		400	600
Assets Current		184,090	184,090		$ 179,498
Liabilities		220,494	220,494		$ 215,620
Joint Venture Agreement | Joint Venture Agreement
Business Acquisition Contingent Consideration [Line Items]
Percentage of equity hold in joint venture				70.00%
Voting interest in joint venture				50.00%
Net assets acquired				$ 1,000
Assets Current		6,200	6,200
Long-Lived Assets		8,700	8,700
Liabilities		7,300	7,300
Customer Lists [Member]
Business Acquisition Contingent Consideration [Line Items]
Acquired intangible assets		4,200	4,200
Tradename [Member]
Business Acquisition Contingent Consideration [Line Items]
Acquired intangible assets		$ 600	$ 600
Customer Lists and Tradename [Member]
Business Acquisition Contingent Consideration [Line Items]
Intangible assets, Useful Life		10 years