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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 |  |  |

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