Organization, Business and Summary of Significant Accounting Policies - Summary of Revenue from Contracts with Customers (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Disaggregation Of Revenue [Line Items]
Revenues	$ 79,336	$ 74,544	$ 260,002	$ 231,633
Technology Solutions
Disaggregation Of Revenue [Line Items]
Revenues	66,354	68,066	227,991	211,287
Nebula
Disaggregation Of Revenue [Line Items]
Revenues	12,982	6,478	32,011	20,346
Legal Technology
Disaggregation Of Revenue [Line Items]
Revenues	71,059	66,444	234,630	205,451
Legal Technology | Technology Solutions
Disaggregation Of Revenue [Line Items]
Revenues	58,077	59,966	202,619	185,105
Legal Technology | Nebula
Disaggregation Of Revenue [Line Items]
Revenues	12,982	6,478	32,011	20,346
Data Recovery
Disaggregation Of Revenue [Line Items]
Revenues	8,277	8,100	25,372	26,182
Data Recovery | Technology Solutions
Disaggregation Of Revenue [Line Items]
Revenues	$ 8,277	$ 8,100	25,372	26,182
Data Recovery | Nebula
Disaggregation Of Revenue [Line Items]
Revenues