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Real Estate Owned - Brooklyn Development - Additional Information (Details) - USD ($) $ in Thousands |  | 3 Months Ended | 6 Months Ended | 12 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Aug. 03, 2022 | Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2021 | Jun. 30, 2024 | Jun. 30, 2023 | Dec. 31, 2020 | Jun. 13, 2024 | Dec. 31, 2023 | Jun. 30, 2020 | Dec. 31, 2015
Real Estate [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt related to real estate owned, held for investment, net |  |  | $ 235,418 |  |  |  | $ 235,418 |  |  |  | $ 161,562 |  |
Increase in Specific CECL Allowance, net |  |  |  |  | $ (10,000) | $ (20,000) |  |  |  |  |  |  |
Realized gain (loss) on investments |  |  |  |  |  |  | $ (679) | $ (86,604) |  |  |  |  |
Debt Instrument, Variable Interest Rate, Type [Extensible Enumeration] |  |  |  |  |  |  | Secured Overnight Financing Rate [Member] |  |  |  |  |  |
Debt instrument, covenant, unencumbered liquidity, threshold |  |  | 100,000 |  |  |  | $ 100,000 |  |  |  |  |  |
Debt instrument, covenant, net worth threshold |  |  | 600,000 |  |  |  | 600,000 |  |  |  |  |  |
Aggregate Notional Amount (in thousands) |  |  |  |  |  |  |  |  |  | $ 73,700 |  |  |
Interest rate caps |  |  |  |  |  |  |  |  |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate Notional Amount (in thousands) |  |  |  |  |  |  |  |  |  |  |  | $ 1,100 |
Interest rate caps | Not Designated as Hedging Instrument |  |  |  |  |  |  |  |  |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate Notional Amount (in thousands) |  |  | 238,535 |  |  |  | 238,535 |  |  |  | 164,835 |  |
Derivative Financial Instruments, Assets | Interest rate caps | Not Designated as Hedging Instrument |  |  |  |  |  |  |  |  |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate Notional Amount (in thousands) |  |  | 700 |  |  |  | 700 |  |  |  | 1,400 |  |
Letter of Credit |  |  |  |  |  |  |  |  |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Maximum amount of borrowings |  |  | 388,400 |  |  |  | $ 388,400 |  |  |  |  |  |
Line of credit facility, option to extend, period |  |  |  |  |  |  | 1 year |  |  |  |  |  |
Mortgages |  |  |  |  |  |  |  |  |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt related to real estate owned, held for investment, net |  |  | 163,100 |  |  |  | $ 163,100 |  |  |  | 161,600 |  |
Less: deferred financing costs |  |  | 2,600 |  |  |  | 2,600 |  |  |  | 3,200 |  |
JV Partner |  |  |  |  |  |  |  |  |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Financing receivable, loan in process |  | $ 164,800 |  |  |  |  |  |  |  |  |  |  |
JV Partner | Joint venture |  |  |  |  |  |  |  |  |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Equity method investment, ownership percentage |  | 100.00% |  |  |  |  |  |  |  |  |  |  |
Subordinate Mortgage Portfolio Segment |  |  |  |  |  |  |  |  |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Mortgage loans on real estate, commercial and consumer, net | [1],[2] |  | 384,777 |  |  |  | $ 384,777 |  |  |  | 432,734 |  |
Multifamily Development - Brooklyn, NY |  |  |  |  |  |  |  |  |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate for repurchase facility |  |  |  |  |  |  | 2.55% |  |  |  |  |  |
Multifamily Development - Brooklyn, NY | Subordinate Mortgage Portfolio Segment |  |  |  |  |  |  |  |  |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt related to real estate owned, held for investment, net |  |  |  |  |  |  |  |  |  |  |  |  | $ 122,200
Increase in Specific CECL Allowance, net |  |  |  |  |  |  |  |  | $ (30,000) |  |  |  |
Deed-In-Lieu Of Foreclosure |  |  |  |  |  |  |  |  |  |  |  |  |
Real Estate [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Mortgage loans on real estate, commercial and consumer, net |  | $ 226,500 | 451,600 |  |  |  | $ 451,600 |  |  |  | 374,200 |  |
Real estate investment property, net |  | 270,100 |  |  |  |  |  |  |  |  |  |  |
Realized gain (loss) on investments |  | $ 43,600 |  |  |  |  |  |  |  |  |  |  |
Financing receivable, construction and finance costs capitalized |  |  | 39,900 | $ 15,200 |  |  | 77,400 | $ 29,100 |  |  |  |  |
Construction costs |  |  | $ 230,400 |  |  |  | $ 230,400 |  |  |  | $ 152,900 |  |
[1] | Includes $232,991 pledged as collateral under secured debt arrangements in 2023.
[2] | Net of $377,819 and $219,482 CECL Allowances comprised of $342,500 and $193,000 Specific CECL Allowance and $35,319 and $26,482 General CECL Allowance in 2024 and 2023, respectively.

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