Loans and Investments - Summary of Impaired Loans (Details) $ in Thousands	6 Months Ended	12 Months Ended
Jun. 30, 2025 USD ($) loan	Dec. 31, 2024 USD ($) loan
Loans and Investments
UPB	$ 617,789	$ 611,696
Carrying Value	596,940	589,036
Allowance for Credit Losses	$ 144,649	$ 143,749
Wtd. Avg. First Dollar LTV Ratio	0	0
Wtd. Avg. Last Dollar LTV Ratio	0.99	0.99
Number of impaired loans (less unearned revenue and other holdbacks and adjustments) by asset class \| loan	27	27
Multifamily
Loans and Investments
UPB	$ 462,354	$ 456,261
Carrying Value	452,304	444,400
Allowance for Credit Losses	$ 61,787	$ 60,887
Wtd. Avg. First Dollar LTV Ratio	0	0
Wtd. Avg. Last Dollar LTV Ratio	0.99	0.99
Land
Loans and Investments
UPB	$ 134,215	$ 134,215
Carrying Value	127,868	127,868
Allowance for Credit Losses	$ 77,869	$ 77,869
Wtd. Avg. First Dollar LTV Ratio	0	0
Wtd. Avg. Last Dollar LTV Ratio	0.99	0.99
Retail
Loans and Investments
UPB	$ 19,520	$ 19,520
Carrying Value	15,068	15,068
Allowance for Credit Losses	$ 3,293	$ 3,293
Wtd. Avg. First Dollar LTV Ratio	0	0
Wtd. Avg. Last Dollar LTV Ratio	0.87	0.87
Commercial
Loans and Investments
UPB	$ 1,700	$ 1,700
Carrying Value	1,700	1,700
Allowance for Credit Losses	$ 1,700	$ 1,700
Wtd. Avg. First Dollar LTV Ratio	0	0
Wtd. Avg. Last Dollar LTV Ratio	1	1

Carrying value of impaired financing receivables.

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For an impaired loan, the weighted average loan to value ratio that is calculated by comparing the total of the carrying value of the company's loan and all senior lien positions within the capital stack to the fair value of the underlying collateral to determine the point at which the company will absorb a total loss of its position.

+ References

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The number of impaired loans (less unearned revenue and other holdbacks and adjustments) by asset class.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount, excluding accrued interest, of allowance for credit loss at acquisition date of financing receivable purchased with credit deterioration. Excludes net investment in lease.

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Amount at par value of financing receivable purchased with credit deterioration.

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