Segment Reporting and Disaggregated Revenue - Company's Revenue by Distribution Channel (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Segment Reporting Information [Line Items]
Revenues	$ 61,093	$ 148,392
Total commission and fee revenue
Segment Reporting Information [Line Items]
Revenues	16,435	100,287
Commission and fee revenue
Segment Reporting Information [Line Items]
Revenues	13,727	89,170
Contingent commission
Segment Reporting Information [Line Items]
Revenues	2,708	11,117
Agent | Total commission and fee revenue
Segment Reporting Information [Line Items]
Revenues	11,227	54,876
Agent | Commission and fee revenue
Segment Reporting Information [Line Items]
Revenues	9,812	49,092
Agent | Contingent commission
Segment Reporting Information [Line Items]
Revenues	1,415	5,784
Direct | Total commission and fee revenue
Segment Reporting Information [Line Items]
Revenues	5,208	45,411
Direct | Commission and fee revenue
Segment Reporting Information [Line Items]
Revenues	3,915	40,078
Direct | Contingent commission
Segment Reporting Information [Line Items]
Revenues	$ 1,293	$ 5,333