Segments - Summary of Depreciation and Amortization Expense by Segment (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Segment Reporting [Line Items]
Depreciation and amortization expense	$ 19,253	$ 11,152	$ 38,489	$ 21,556
Investment Banking Advisory
Segment Reporting [Line Items]
Depreciation and amortization expense	18,579	10,506	37,157	20,289
Valuations and Opinions
Segment Reporting [Line Items]
Depreciation and amortization expense	$ 674	$ 646	$ 1,332	$ 1,267