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Variable Interest Entities - (Schedule of Aggregate Assets and Liabilities from VIEs) (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Variable Interest Entity [Line Items]
Aggregate Assets	$ 41,687,360	$ 39,895,540
Aggregate Liabilities	35,931,225	34,208,770
Variable Interest Entity, Primary Beneficiary [Member] | Securitization Interests [Member]
Variable Interest Entity [Line Items]
Aggregate Assets	42,360	148,463
Aggregate Liabilities	$ 11,814	$ 132,035

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