Equity Method Investments and Other - Schedule of Carrying Value of Equity Method Investments (Details) - USD ($) $ in Thousands	Mar. 31, 2026	Dec. 31, 2025
Schedule of Equity Method Investments [Line Items]
Carrying Value	$ 72,101	$ 77,365
Equity method investments
Schedule of Equity Method Investments [Line Items]
Carrying Value	50,403	53,498
Arena Special Opportunities Fund, LP units
Schedule of Equity Method Investments [Line Items]
Carrying Value	$ 24,011	$ 26,936
Ownership %	13.40%	14.00%
JVM Funds LLC
Schedule of Equity Method Investments [Line Items]
Carrying Value	$ 14,155	$ 14,911
Ownership %	10.10%	10.10%
Hudson Ventures Fund II LP units
Schedule of Equity Method Investments [Line Items]
Carrying Value	$ 5,397	$ 5,503
Ownership %	2.50%	2.50%
RISCOM
Schedule of Equity Method Investments [Line Items]
Carrying Value	$ 4,026	$ 3,307
Ownership %	20.00%	20.00%
Brewer Lane Ventures Fund II LP units
Schedule of Equity Method Investments [Line Items]
Carrying Value	$ 2,522	$ 2,251
Ownership %	2.30%	2.40%
Dowling Capital Partners LP units
Schedule of Equity Method Investments [Line Items]
Carrying Value	$ 292	$ 590
Ownership %	5.00%	5.00%
Arena SOP LP units
Schedule of Equity Method Investments [Line Items]
Carrying Value	$ 0	$ 0
Ownership %	11.30%	11.20%