Business Segment, Geographic, and Concentration Risk Information - Summary of Revenue by Geographical Segment (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Total revenue:
Total consolidated revenue	$ 120,181	$ 144,391	$ 101,229
United States
Total revenue:
Total consolidated revenue	114,457	82,362	67,794
China
Total revenue:
Total consolidated revenue	2,666	39,796	2,105
South Korea
Total revenue:
Total consolidated revenue	1,112	2,354	513
India
Total revenue:
Total consolidated revenue	906		3,066
Austria
Total revenue:
Total consolidated revenue	115	226	4,422
Spain
Total revenue:
Total consolidated revenue	47	2,354	20,000
United Kingdom
Total revenue:
Total consolidated revenue		19,289	1,023
Other Foreign Countries
Total revenue:
Total consolidated revenue	$ 878	$ 364	$ 2,306