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Loan Securitization/Sale Activities - Narrative (Details) - USD ($)	3 Months Ended	12 Months Ended
	Mar. 31, 2024	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Commercial and Residential Lending Segment
Loan Transfer Activities
Net gains (losses) on the sale of loan qualifying for sales treatment		$ (400,000)	$ 300,000	$ 0
Commercial and Residential Lending Segment | First Mortgage Loan
Loan Transfer Activities
Loans held-for-sale face amount		231,700,000
Proceeds		229,900,000
Commercial and Residential Lending Segment | First Mortgage and Mezzanine Loan
Loan Transfer Activities
Loans held-for-sale face amount			40,100,000
Commercial and Residential Lending Segment | Mezzanine Loans
Loan Transfer Activities
Loans held-for-sale face amount				95,500,000
Investing and Servicing Loan Sales
Loan Transfer Activities
Loans held-for-sale face amount		42,500,000	127,900,000
Proceeds		43,500,000	124,800,000
Investing and Servicing Loan Sales | Residential Loans
Loan Transfer Activities
Loans held-for-sale face amount		0	0	0
Infrastructure Lending Segment
Loan Transfer Activities
Loans held-for-sale face amount		0	49,500,000	0
Proceeds			47,100,000
Loans held for sale Sold fair value adjustment	$ 1,500,000
RMBS
Loan Transfer Activities
Payments to acquire marketable securities		$ 0	$ 0	$ 0

X

- Definition

Net gain or loss resulting from the difference between the sale price and the carrying value when a financial asset transferred in a securitization, asset-backed financing arrangement, or similar transfer is accounted for as a sale, including those transactions in which the seller or transferor has continuing involvement with the financial assets that have been transferred.

+ References

No definition available.

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- References

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+ Details

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X

- Definition

Represents the fair value of loans held-for-sale, sold during the period.

+ References

No definition available.

+ Details

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- Definition

Loans Held for Sale, Sold Fair Value Adjustment

+ References

No definition available.

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- Definition

Represents the par value of loans held-for-sale, sold during the period.

+ References

No definition available.

+ Details

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- Definition

Amount of cash outflow for purchase of marketable security.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 11
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481830/320-10-45-11

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