Organization, Business and Summary of Significant Accounting Policies - Summary of Revenue from Contracts with Customers (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Disaggregation Of Revenue [Line Items]
Revenues	$ 90,659	$ 81,898
Technology Solutions
Disaggregation Of Revenue [Line Items]
Revenues	82,487	75,781
Nebula
Disaggregation Of Revenue [Line Items]
Revenues	8,172	6,117
Legal Technology
Disaggregation Of Revenue [Line Items]
Revenues	82,006	72,357
Legal Technology | Technology Solutions
Disaggregation Of Revenue [Line Items]
Revenues	73,834	66,240
Legal Technology | Nebula
Disaggregation Of Revenue [Line Items]
Revenues	8,172	6,117
Data Recovery
Disaggregation Of Revenue [Line Items]
Revenues	8,653	9,541
Data Recovery | Technology Solutions
Disaggregation Of Revenue [Line Items]
Revenues	$ 8,653	$ 9,541