Consolidation - Schedule of Assets and Liabilities Measured at Fair Value on Recurring Basis (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Assets
Cash equivalents	$ 340,276	$ 225,736
Total assets measured at fair value	436,828	324,666
Liabilities
Total liabilities measured at fair value	20,800	36,100
Level 1
Assets
Cash equivalents	340,276	225,736
Total assets measured at fair value	434,282	323,210
Liabilities
Total liabilities measured at fair value	0	0
Level 2
Assets
Cash equivalents	0	0
Total assets measured at fair value	2,546	1,456
Liabilities
Total liabilities measured at fair value	0	0
Level 3
Assets
Cash equivalents	0	0
Total assets measured at fair value	0	0
Liabilities
Total liabilities measured at fair value	20,800	36,100
Consolidated Investment Products | Fair Value, Measurements, Recurring
Assets
Cash equivalents	86,491	127,695
Total assets measured at fair value	2,719,843	2,398,412
Liabilities
Notes payable	2,359,828	2,171,946
Short sales	225	356
Total liabilities measured at fair value	2,360,053	2,172,302
Consolidated Investment Products | Fair Value, Measurements, Recurring | Debt investments
Assets
Investments	2,566,761	2,246,600
Consolidated Investment Products | Fair Value, Measurements, Recurring | Equity investments
Assets
Investments	66,591	24,117
Consolidated Investment Products | Level 1 | Fair Value, Measurements, Recurring
Assets
Cash equivalents	86,491	127,695
Total assets measured at fair value	152,762	150,688
Liabilities
Notes payable	0	0
Short sales	225	356
Total liabilities measured at fair value	225	356
Consolidated Investment Products | Level 1 | Fair Value, Measurements, Recurring | Debt investments
Assets
Investments	91	0
Consolidated Investment Products | Level 1 | Fair Value, Measurements, Recurring | Equity investments
Assets
Investments	66,180	22,993
Consolidated Investment Products | Level 2 | Fair Value, Measurements, Recurring
Assets
Cash equivalents	0	0
Total assets measured at fair value	2,536,337	2,240,035
Liabilities
Notes payable	2,359,828	2,171,946
Short sales	0	0
Total liabilities measured at fair value	2,359,828	2,171,946
Consolidated Investment Products | Level 2 | Fair Value, Measurements, Recurring | Debt investments
Assets
Investments	2,536,337	2,239,924
Consolidated Investment Products | Level 2 | Fair Value, Measurements, Recurring | Equity investments
Assets
Investments	0	111
Consolidated Investment Products | Level 3 | Fair Value, Measurements, Recurring
Assets
Cash equivalents	0	0
Total assets measured at fair value	30,744	7,689
Liabilities
Notes payable	0	0
Short sales	0	0
Total liabilities measured at fair value	0	0
Consolidated Investment Products | Level 3 | Fair Value, Measurements, Recurring | Debt investments
Assets
Investments	30,333	6,676
Consolidated Investment Products | Level 3 | Fair Value, Measurements, Recurring | Equity investments
Assets
Investments	$ 411	$ 1,013