Significant Accounting Policies - Summary of Information Services Revenue by Timing of Recognition (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Significant Accounting Policies [Line Items]
Revenues	$ 846,268	$ 817,097	$ 752,547
Information Services [Member]
Significant Accounting Policies [Line Items]
Revenues	53,230	50,540	46,383
Information Services [Member] | Transferred over Time [Member]
Significant Accounting Policies [Line Items]
Revenues	51,941	49,560	45,102
Information Services [Member] | Transferred at Point in Time [Member]
Significant Accounting Policies [Line Items]
Revenues	$ 1,289	$ 980	$ 1,281