Acquisitions and Equity Investments - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Dec. 31, 2022	May 01, 2022	Apr. 09, 2021
Business Acquisition [Line Items]
Contingent consideration payable		$ 1,600
Contingent consideration paid	$ 12,447	$ 12,340
RFQ hub Holdings LLC [Member]
Business Acquisition [Line Items]
Recorded investments			$ 34,400
Proportionate share in net earnings	200
RFQ hub Holdings LLC [Member] | Prepaid Expenses and Other Assets [Member]
Business Acquisition [Line Items]
Recorded investments	35,700
Muni Brokers L L C [Member]
Business Acquisition [Line Items]
Contingent consideration payable	$ 12,400
Contingent consideration paid			$ 8,300
Muni Brokers L L C [Member] | Accounts Payable, Accrued Expenses and Other Liabilities [Member]
Business Acquisition [Line Items]
Contingent consideration payable				$ 22,500