Long-Lived Assets by Geographic Location (Detail) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Segment Reporting Information [Line Items]
Property and equipment, net	$ 4,066	$ 2,827
Operating lease ROU assets	2,088	3,405
Americas
Segment Reporting Information [Line Items]
Property and equipment, net	545	606
Operating lease ROU assets	1,344	2,100
Europe and the Middle East
Segment Reporting Information [Line Items]
Property and equipment, net	334	73
Operating lease ROU assets	135	224
Asia-Pacific
Segment Reporting Information [Line Items]
Property and equipment, net	3,187	2,148
Operating lease ROU assets	$ 609	$ 1,081