Business Segment, Geographic, and Concentration Risk Information - Summary of Revenue by Geographical Segment (Detail) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2022	Mar. 31, 2021
Total revenue:
Total consolidated revenue	$ 29,724	$ 41,025
United States
Total revenue:
Total consolidated revenue	29,135	38,645
China
Total revenue:
Total consolidated revenue	589	205
Other Foreign Countries
Total revenue:
Total consolidated revenue		$ 2,175

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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+ Details