Investments - Schedule of Investments (Details) - USD ($)	Sep. 30, 2026	Dec. 31, 2025
Equity Securities without Readily Determinable Fair Value [Line Items]
Equity investments	$ 613,558,000	$ 0
Loan held for sale	59,326,000	0
Investments held to maturity, at amortized cost	79,550,000	88,480,000
Total investments	10,277,810,000	9,211,816,000
Variable Interest Entity, Primary Beneficiary
Equity Securities without Readily Determinable Fair Value [Line Items]
Equity method investments	389,633,000	521,124,000
Investments held to maturity, at amortized cost	72,072,000	82,198,000
Equity method - performance allocations
Equity Securities without Readily Determinable Fair Value [Line Items]
Equity method investments	8,211,947,000	7,309,239,000
Equity method - capital interests
Equity Securities without Readily Determinable Fair Value [Line Items]
Equity method investments	1,296,486,000	1,801,436,000
Equity method - other
Equity Securities without Readily Determinable Fair Value [Line Items]
Equity method investments	$ 16,943,000	$ 12,661,000

Amount excluding accrued interest, after allowance for credit loss, of investment in debt security measured at amortized cost (held-to-maturity).

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