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Secured Debt Arrangements, Net - Assets Under Barclays Private Securitization (Parenthetical) (Details) $ in Thousands, € in Millions, £ in Millions, kr in Billions	9 Months Ended	12 Months Ended
	Sep. 30, 2025 USD ($)	Dec. 31, 2024 USD ($)	Sep. 30, 2025 GBP (£)	Sep. 30, 2025 EUR (€)	Sep. 30, 2025 SEK (kr)	Dec. 31, 2024 GBP (£)	Dec. 31, 2024 EUR (€)	Dec. 31, 2024 SEK (kr)
Debt Instrument [Line Items]
Debt instrument, facility feature, period	1 year	1 year
Line of Credit
Debt Instrument [Line Items]
Borrowings outstanding	$ 5,896,015	$ 4,814,973
Barclays Securitization | Line of Credit
Debt Instrument [Line Items]
Borrowings outstanding	$ 1,680,125	$ 1,587,779	£ 800.3	€ 335.2	kr 2.0	£ 716.8	€ 493.9	kr 2.0

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