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Loans and Investments - Schedule of Non-Performing Loans (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2024	Dec. 31, 2023
Loans and Investments
UPB	$ 629,255	$ 427,929
Loans and investments, gross	11,565,538	12,615,006
Non-performing loans
Loans and Investments
UPB	625,366	274,152
Loans and investments, gross	594,292	262,739
Multifamily
Loans and Investments
UPB	473,820	272,494
Multifamily | Non-performing loans
Loans and Investments
UPB	622,746	271,532
Loans and investments, gross	591,682	260,129
Commercial
Loans and Investments
UPB	1,700	1,700
Commercial | Non-performing loans
Loans and Investments
UPB	1,700	1,700
Loans and investments, gross	1,700	1,700
Retail
Loans and Investments
UPB	19,520	19,520
Retail | Non-performing loans
Loans and Investments
UPB	920	920
Loans and investments, gross	$ 910	$ 910

X

- Definition

Amortized cost excluding accrued interest, before allowance for credit loss, of financing receivable. Excludes net investment in lease.

+ References

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