First Priority Infrastructure Term Loan

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Represents the number of shares acquired in the equity security investment.

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Represents the percentage ownership in the equity security investment.

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Loan Payable, Extension Term

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Loan Payable, Payment Deferral Interest Rate

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Loan Payable, Payment Deferral Term

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Loans Payable, Basis Spread

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Number of Domestic Natural Gas Power Plants

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Number Of Properties By Which Investment Is Secured

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Upsize To Term Loan

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Face (par) amount of debt instrument at time of issuance.

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Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Number of shares of investment owned.

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Including the current and noncurrent portions, aggregate carrying value as of the balance sheet date of loans payable (with maturities initially due after one year or beyond the operating cycle if longer).

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Amount of investment in mortgage loan on real estate by entity with substantial portion of business acquiring and holding investment real estate or interest in real estate.

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Amount of increase in mortgage loan on real estate by entity with substantial portion of business acquiring and holding investment real estate or interest in real estate, from new investment.

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The cash inflow from repayments of the balance excluding interest (principal) on loans receivable and leases held for investment purposes.

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The cash inflow associated with the sale of receivables arising from the financing of goods and services.

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Related-Party Transactions - Investments in Loans and Securities (Details) € in Millions	1 Months Ended								12 Months Ended				132 Months Ended
	Aug. 31, 2023 USD ($)	Mar. 31, 2022 USD ($) Item	Jul. 31, 2019 USD ($)	Apr. 30, 2019 USD ($)	Feb. 28, 2019 USD ($) powerPlant	Mar. 31, 2018 EUR (€)	Jan. 31, 2018 USD ($) powerPlant	Dec. 31, 2012 USD ($) shares	Dec. 31, 2023 USD ($) shares	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2012 USD ($) shares	Dec. 31, 2022 USD ($) shares	Dec. 31, 2020 USD ($)
Related-Party Transactions
Acquisitions/originations/additional funding									$ 3,474,242,000	$ 10,178,734,000	$ 13,990,579,000
Loan balance									$ 20,219,886,000	21,186,033,000	18,413,649,000		$ 21,186,033,000	$ 12,139,908,000
SEREF
Related-Party Transactions
Number of shares acquired (in shares) \| shares												9,140,000
Number of shares redeemed (in shares) \| shares									1,892,313				0
Proceeds from shares redeemed									$ 2,500,000
Remaining held (in shares) \| shares									7,247,687
Ownership percentage									2.30%
Purchase of First Mortgage Loan Participation
Related-Party Transactions
Number of properties securing investment \| powerPlant							3
Purchase of First Mortgage Loan Participation \| First mortgage loan participation
Related-Party Transactions
Acquisitions/originations/additional funding							$ 130,000,000
Affiliated Entity \| SEREF
Related-Party Transactions
Number of shares redeemed (in shares) \| shares									1,892,313
Proceeds from shares redeemed									$ 2,500,000
Remaining held (in shares) \| shares									7,247,687
Ownership percentage									2.00%
Affiliated Entity \| Residential Mortgage Originator
Related-Party Transactions
Proceeds from sale of receivables									$ 0	4,400,000	3,500,000
Affiliated Entity \| Residential Mortgage Originator \| Residential Loans
Related-Party Transactions
Acquisitions/originations/additional funding									0	$ 1,100,000,000	$ 1,200,000,000
Affiliated Entity \| SEREF
Related-Party Transactions
Number of shares acquired (in shares) \| shares								9,140,000
Investment securities value								$ 14,700,000				$ 14,700,000
Ownership acquired in investment								4.00%
Affiliated Entity \| Origination of First Mortgage Loan
Related-Party Transactions
Proceeds from repayments on loans	$ 29,400,000
First priority term loan	$ 339,200,000
Affiliated Entity \| Development And Recapitalization Of Luxury Rental Cabins
Related-Party Transactions
Loans payable									148,500,000
Loan number of extension options \| Item		3
Loan extension term		1 year
Loan payable, payment deferral term		10 months
Loan payable, payment deferral interest rate		3.00%
Loans payable, payment deferral, interest									2,300,000
Affiliated Entity \| Development And Recapitalization Of Luxury Rental Cabins \| SOFR
Related-Party Transactions
Loans payable, basis spread		6.50%
Affiliated Entity \| Office portfolio located in Spain \| SEREF
Related-Party Transactions
Acquisitions/originations/additional funding \| €						€ 55.0
Affiliated Entity \| Purchase of First Priority Infrastructure Term Loan Participation \| Starwood Energy Group
Related-Party Transactions
Acquisitions/originations/additional funding			$ 16,000,000	$ 5,000,000	$ 60,000,000
First priority term loan					$ 925,000,000
Upsize to term loan			$ 350,000,000
Number of domestic natural gas power plants \| powerPlant					4
Loan balance									$ 60,700,000
Affiliated Entity \| Loans Payable \| Development And Recapitalization Of Luxury Rental Cabins
Related-Party Transactions
Face amount		$ 200,000,000
Maturity period		24 months