Restructuring and Severance - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Restructuring Cost And Reserve [Line Items]
Restructuring and severance expenses	$ 817,000	$ 1,716,000
Impairment of ROU operating lease asset	281,000	1,294,000
3VR
Restructuring Cost And Reserve [Line Items]
Restructuring and severance expenses	817,000	1,716,000
3VR | Severance
Restructuring Cost And Reserve [Line Items]
Restructuring and severance expenses	296,000	375,000
3VR | Facility Rental
Restructuring Cost And Reserve [Line Items]
Restructuring and severance expenses	521	1,341,000
Impairment of ROU operating lease asset	$ 281,000
3VR | Impairment of ROU Operating Lease Asset
Restructuring Cost And Reserve [Line Items]
Restructuring and severance expenses		$ 1,296,000