Revenues - Schedule of Revenues on Disaggregated Basis (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Disaggregation Of Revenue [Line Items]
Revenues	$ 4,648	$ 11,001	$ 15,585	$ 32,269
License and service fees
Disaggregation Of Revenue [Line Items]
Revenues	788	741	2,326	2,619
Hosted environment usage fees
Disaggregation Of Revenue [Line Items]
Revenues	644	749	1,840	2,309
Cloud based usage fees
Disaggregation Of Revenue [Line Items]
Revenues	3,196	9,254	10,865	26,438
Consulting services and other
Disaggregation Of Revenue [Line Items]
Revenues	$ 20	$ 257	$ 554	$ 903