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Fair Value - Financial Instruments Not Carried at Fair Value (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Financial assets not carried at fair value:
Loans held-for-investment	$ 18,862,712	$ 15,437,013
HTM debt securities	216,936	431,424
Financial liabilities not carried at fair value:
Securitized financing, net	5,131,453	3,196,426
Carrying Value
Financial assets not carried at fair value:
Loans held-for-investment	18,862,712	15,437,013
HTM debt securities	179,567	406,961
Financial liabilities not carried at fair value:
Secured financing agreements	12,678,948	11,151,557
Securitized financing, net	5,131,453	3,196,426
Unsecured senior notes	4,283,836	2,994,682
Fair Value
Financial assets not carried at fair value:
Loans held-for-investment	18,996,541	15,546,013
HTM debt securities	146,442	382,394
Financial liabilities not carried at fair value:
Secured financing agreements	12,785,314	11,215,974
Securitized financing, net	5,154,262	3,190,559
Unsecured senior notes	$ 4,438,777	$ 3,017,102

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- Definition

Represents the carrying value as of the balance sheet date , including the current and noncurrent portions, of collateralized debt obligations and principal amount outstanding for securitized loans only (across all types of loans) and the amount of the participation liability at the end of the accounting period.

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The value of the collateral (typically cash) that the entity receives in a financing transaction in exchange for securities lent. This item represents a liability in the financial statements of the lender of the securities.

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

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Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

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Amortized cost, after allowance for credit loss, of financing receivable. Excludes financing receivable covered under loss sharing agreement and net investment in lease.

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