Segment, Customer and Geographic Information - Long Lived Assets by Geographical Location (Detail) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Long-Lived Assets by Geographical Areas [Line Items]
Total long-lived assets	$ 8,640	$ 10,969
United States
Long-Lived Assets by Geographical Areas [Line Items]
Total long-lived assets	8,444	10,705
Europe and Other
Long-Lived Assets by Geographical Areas [Line Items]
Total long-lived assets	$ 196	$ 264