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Financing Receivable, Number Of Mortgage Loans

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First Priority Infrastructure Term Loan

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Increase (Decrease) in Equity Securities, Carrying Value, Additional Contribution

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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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Investment Securities Value at Acquisition

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Mortgage Loans On Real Estate, Loan Foreclosure And Converted To Equity Control Interest During Period

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Number of Domestic Natural Gas Power Plants

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Number Of Units

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Upsize To Term Loan

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Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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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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Amount of investment in equity security without readily determinable fair value.

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

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Related-Party Transactions - Investments in Loans and Securities (Details) $ in Thousands, € in Millions, £ in Millions	1 Months Ended													2 Months Ended	4 Months Ended	12 Months Ended
	Dec. 31, 2025 EUR (€)	Jun. 30, 2025 USD ($) extension	May 31, 2025 USD ($)	Jan. 31, 2025 USD ($) unit	Dec. 31, 2024 USD ($) loan	May 31, 2024 USD ($) extension	Apr. 30, 2024 USD ($) extension	Aug. 31, 2023 USD ($)	Jul. 31, 2023	Jul. 31, 2019 USD ($)	Apr. 30, 2019 USD ($)	Feb. 28, 2019 USD ($) powerPlant	Dec. 31, 2012 USD ($) shares	Feb. 25, 2026 USD ($)	Jul. 31, 2019 USD ($)	Dec. 31, 2025 USD ($) mortgageLoan transaction shares	Dec. 31, 2024 USD ($) shares	Dec. 31, 2023 USD ($) shares	Dec. 31, 2012 USD ($) shares	Dec. 31, 2025 EUR (€) mortgageLoan shares	Jul. 31, 2024 USD ($)	Apr. 30, 2024 GBP (£)	Mar. 31, 2022 USD ($)
Related-Party Transactions
Number of related-party loan transactions \| transaction																8
Loan foreclosure and equity control																$ 196,543	$ 351,131	$ 102,774
Proceeds from loans sold																229,867	87,269	95,271
Loans held-for-investment, net of credit loss allowances of $440,842 and $448,295					$ 15,437,013											$ 18,862,712	15,437,013
Weighted-average Spread Above Index																3.40%				3.40%
Other equity investments, carrying value					$ 16,436											$ 16,436	16,436
Acquisitions/originations/additional funding																$ 8,934,637	$ 4,781,916	$ 3,474,242
SEREF
Related-Party Transactions
Number of shares acquired (in shares) \| shares																			9,140,000
Number of shares redeemed (in shares) \| shares																3,944,520	2,767,038	1,892,313
Proceeds from shares redeemed																$ 5,100	$ 3,700	$ 2,500
Remaining held (in shares) \| shares																536,129				536,129
Ownership percentage																2.30%
Equity interest in a data center business in Ireland
Related-Party Transactions
Cost method, Participation / Ownership %					0.72%											0.54%	0.72%			0.54%
Other equity investments, carrying value					$ 7,672											$ 7,672	$ 7,672
Cost method investments, combined voting interest, percentage																50.00%				50.00%
Additional contribution																	$ 300
Affiliated Entity \| SEREF
Related-Party Transactions
Number of shares redeemed (in shares) \| shares																3,944,520	2,767,038	1,892,313
Proceeds from shares redeemed																$ 5,100	$ 3,700	$ 2,500
Remaining held (in shares) \| shares																536,129				536,129
Ownership percentage																2.30%
Affiliated Entity \| SEREF
Related-Party Transactions
Number of shares acquired (in shares) \| shares													9,140,000
Investment securities value													$ 14,700						$ 14,700
Ownership acquired in investment													4.00%
Affiliated Entity \| SEREF \| Mezzanine Loans \| Ireland
Related-Party Transactions
Loan foreclosure and equity control \| €	€ 28.4
Proceeds from loans sold \| €	€ 4.8
Affiliated Entity \| Sponsor \| Non-Interest-Bearing Loan
Related-Party Transactions
Face Amount																$ 3,300				€ 2.8
Construction of Data Center in Ashburn \| Affiliated Entity \| Affiliates Of Manager \| Borrower
Related-Party Transactions
Limited liability company or limited partnership, members or limited partners, ownership interest			92.50%
Construction of Luxury Condominium Project \| Affiliated Entity \| Affiliates Of Manager \| Borrower
Related-Party Transactions
Limited liability company or limited partnership, members or limited partners, ownership interest				90.00%
Development and Recapitalization of Luxury Rental Cabins \| Affiliated Entity
Related-Party Transactions
Loan extension term					24 months
Conditional extension term					1 year
Loans payable, interest rate decrease					2.25%
Loans payable, basis spread					4.25%												4.25%
Loan payable, payment deferral term									10 months
Loan payable, payment deferral interest rate									3.00%
Loans payable																147,500
Loans payable, payment deferral, interest																18,900
Sale of Participating Interests in Commercial Loans to Private Investment Fund \| Affiliated Entity
Related-Party Transactions
Number of commercial loans to a private investment fund \| loan					4
Amounts of transaction					$ 40,100
Future funding commitments \| Affiliated Entity
Related-Party Transactions
Amounts of transaction					15,900
Refinancing of Medical Office Portfolio \| Affiliated Entity
Related-Party Transactions
Loan number of extension options \| extension						3
Loan extension term						1 year
Refinancing of Medical Office Portfolio \| Affiliated Entity \| SOFR
Related-Party Transactions
Loans payable, basis spread						5.50%
Refinancing of Medical Office Portfolio \| Affiliated Entity \| Horizontal Risk Retention Certificates
Related-Party Transactions
Face Amount						$ 23,000
Vacation Cottages, Caravan Homes, and Resorts Portfolio Acquisition \| Affiliated Entity
Related-Party Transactions
Loan number of extension options \| extension							2
Loan extension term							1 year
Loans payable \| £																						£ 352.0
Vacation Cottages, Caravan Homes, and Resorts Portfolio Acquisition \| Affiliated Entity \| Sterling Over Night Indexed Average (SONIA)
Related-Party Transactions
Loans payable, basis spread							5.40%															5.40%
Purchase of FREMF 2024-KF163 \| Affiliated Entity \| Primary beneficiary
Related-Party Transactions
Loans held-for-investment, net of credit loss allowances of $440,842 and $448,295																					$ 77,100
Weighted-average Spread Above Index																					6.00%
Newly Formed FREMF 2024-KF163 Trust \| Affiliated Entity \| Primary beneficiary
Related-Party Transactions
Loans held-for-investment, net of credit loss allowances of $440,842 and $448,295																$ 1,000,000
Number of mortgage loans \| mortgageLoan																24				24
Newly Formed FREMF 2024-KF163 Trust \| Affiliates Of Manager \| Primary beneficiary
Related-Party Transactions
Loans held-for-investment, net of credit loss allowances of $440,842 and $448,295																$ 495,000
Number of mortgage loans \| mortgageLoan																11				11
Purchase of First Priority Infrastructure Term Loan Participation \| Affiliated Entity \| Starwood Energy Group
Related-Party Transactions
Acquisitions/originations/additional funding										$ 16,000	$ 5,000	$ 60,000
First priority term loan												$ 925,000
Upsize to term loan															$ 350,000
Number of domestic natural gas power plants \| powerPlant												4
Origination of First Mortgage Loan \| Affiliated Entity
Related-Party Transactions
First priority term loan								$ 339,200
Proceeds from repayments on loans								$ 29,400
Loans Payable \| Construction of Data Center in Herndon \| Affiliated Entity
Related-Party Transactions
Face Amount		$ 587,100
Debt instrument, face amount, percentage of origination		49.00%
Amount funded																$ 58,600
Maturity period		4 years
Loan number of extension options \| extension		2
Loan extension term		1 year
Basis spread		3.00%
Debt instrument, face amount, percentage of origination, third party		51.00%
Loans Payable \| Construction of Data Center in Herndon \| Affiliated Entity \| Starwood Property Trust, Inc
Related-Party Transactions
Face Amount		$ 287,700
Loans Payable \| Construction of Data Center in Ashburn \| Affiliated Entity
Related-Party Transactions
Face Amount			$ 638,500
Debt instrument, face amount, percentage of origination			33.33%
Amount funded																144,600
Maturity period			5 years	4 years
Basis spread			2.50%
Debt instrument, floor on variable rate			2.00%
Debt instrument, face amount, percentage of origination, third party			66.67%
Loans Payable \| Construction of Data Center in Ashburn \| Affiliated Entity \| Starwood Property Trust, Inc
Related-Party Transactions
Face Amount			$ 212,800
Loans Payable \| Construction of Luxury Condominium Project \| Affiliated Entity
Related-Party Transactions
Face Amount				$ 388,400
Debt instrument, face amount, percentage of origination				49.00%
Amount funded																$ 72,100
Loan extension term				1 year
Basis spread				4.25%
Debt instrument, floor on variable rate				3.00%
Debt instrument, face amount, percentage of origination, third party				51.00%
Number of units \| unit				81
Loans Payable \| Construction of Luxury Condominium Project \| Affiliated Entity \| Starwood Property Trust, Inc
Related-Party Transactions
Face Amount				$ 190,300
Loans Payable \| Development and Recapitalization of Luxury Rental Cabins \| Affiliated Entity
Related-Party Transactions
Face Amount					$ 25,000												$ 25,000						$ 200,000
Loans Payable \| Refinancing of Medical Office Portfolio \| Affiliated Entity
Related-Party Transactions
Face Amount						$ 39,500
Maturity period						2 years
Loans Payable \| Refinancing of Medical Office Portfolio \| Affiliated Entity \| Subsequent Event
Related-Party Transactions
Repayments of debt														$ 39,500
Loans Payable \| Vacation Cottages, Caravan Homes, and Resorts Portfolio Acquisition \| Affiliated Entity
Related-Party Transactions
Face Amount							$ 219,800															£ 176.0
Debt instrument, discount, percentage							1.00%
Secured Borrowings \| Refinancing of Medical Office Portfolio \| Affiliated Entity \| MED 2024-MOB
Related-Party Transactions
Face Amount						$ 450,500