Consolidation - Schedule of Assets and Liabilities Measured at Fair Value on Recurring Basis (Details) - USD ($) $ in Thousands	Jun. 30, 2025	Dec. 31, 2024
Assets
Cash equivalents	$ 137,523	$ 225,736
Total assets measured at fair value	239,229	324,666
Liabilities
Total liabilities measured at fair value	20,000	36,100
Level 1
Assets
Cash equivalents	137,523	225,736
Total assets measured at fair value	236,883	323,210
Liabilities
Total liabilities measured at fair value	0	0
Level 2
Assets
Cash equivalents	0	0
Total assets measured at fair value	2,346	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	20,000	36,100
Fair Value, Measurements, Recurring | Consolidated Investment Products
Assets
Cash equivalents	66,224	127,695
Total assets measured at fair value	2,313,904	2,398,412
Liabilities
Notes payable	2,021,538	2,171,946
Short sales	287	356
Total liabilities measured at fair value	2,021,825	2,172,302
Fair Value, Measurements, Recurring | Debt investments | Consolidated Investment Products
Assets
Investments	2,210,253	2,246,600
Fair Value, Measurements, Recurring | Equity investments | Consolidated Investment Products
Assets
Investments	37,427	24,117
Fair Value, Measurements, Recurring | Level 1 | Consolidated Investment Products
Assets
Cash equivalents	66,224	127,695
Total assets measured at fair value	107,927	150,688
Liabilities
Notes payable	0	0
Short sales	287	356
Total liabilities measured at fair value	287	356
Fair Value, Measurements, Recurring | Level 1 | Debt investments | Consolidated Investment Products
Assets
Investments	5,064	0
Fair Value, Measurements, Recurring | Level 1 | Equity investments | Consolidated Investment Products
Assets
Investments	36,639	22,993
Fair Value, Measurements, Recurring | Level 2 | Consolidated Investment Products
Assets
Cash equivalents	0	0
Total assets measured at fair value	2,131,353	2,240,035
Liabilities
Notes payable	2,021,538	2,171,946
Short sales	0	0
Total liabilities measured at fair value	2,021,538	2,171,946
Fair Value, Measurements, Recurring | Level 2 | Debt investments | Consolidated Investment Products
Assets
Investments	2,131,343	2,239,924
Fair Value, Measurements, Recurring | Level 2 | Equity investments | Consolidated Investment Products
Assets
Investments	10	111
Fair Value, Measurements, Recurring | Level 3 | Consolidated Investment Products
Assets
Cash equivalents	0	0
Total assets measured at fair value	74,624	7,689
Liabilities
Notes payable	0	0
Short sales	0	0
Total liabilities measured at fair value	0	0
Fair Value, Measurements, Recurring | Level 3 | Debt investments | Consolidated Investment Products
Assets
Investments	73,846	6,676
Fair Value, Measurements, Recurring | Level 3 | Equity investments | Consolidated Investment Products
Assets
Investments	$ 778	$ 1,013