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Agreements and Transactions with Related Parties - Other Related Party (Details) $ in Thousands | 1 Months Ended | 3 Months Ended | 12 Months Ended |
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Apr. 30, 2023 USD ($) | Jul. 31, 2022 USD ($) | Apr. 30, 2022 USD ($) | Feb. 28, 2022 USD ($) | Mar. 31, 2020 USD ($) | Jan. 31, 2019 USD ($) | Jun. 30, 2018 USD ($) property loan | Mar. 31, 2023 USD ($) shares | Mar. 31, 2022 USD ($) | Dec. 31, 2021 USD ($) | Dec. 31, 2020 USD ($) item | Dec. 31, 2019 USD ($) | Dec. 31, 2018 USD ($) loan | Dec. 31, 2017 USD ($) loan property item | Dec. 31, 2016 USD ($) property | Dec. 31, 2015 USD ($) | Dec. 31, 2022 USD ($)
Agreements and Transactions with Related Parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Due from related party |  |  |  |  |  |  |  | $ 113,105 |  |  |  |  |  |  |  |  | $ 77,419
Due to related party |  |  |  |  |  |  |  | 12,481 |  |  |  |  |  |  |  |  | 12,350
Investment made |  |  |  |  |  |  |  | $ 380,633 | $ 2,656,874 |  |  |  |  |  |  |  |
Indirect ownership percentage |  |  |  |  |  |  |  | 9.20% |  |  |  |  |  |  |  |  |
Distribution received |  |  |  |  |  |  |  | $ 4,700 |  |  |  |  |  |  |  |  |
Income from equity affiliates |  |  |  |  |  |  |  | 14,326 | 7,212 |  |  |  |  |  |  |  |
AMAC III |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and Transactions with Related Parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Distribution received |  |  |  |  |  |  |  | 600 |  |  |  |  |  |  |  |  |
Other Related Party Transactions |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and Transactions with Related Parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Due from related party |  |  |  |  |  |  |  | 113,100 |  |  |  |  |  |  |  |  | $ 77,400
Commercial Mortgage Backed Security [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and Transactions with Related Parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans assumed |  |  |  |  |  |  |  |  |  | $ 26,000 |  |  |  |  |  |  |
Retail property |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and Transactions with Related Parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Property purchased |  |  |  |  |  |  |  |  |  | $ 32,500 |  |  |  |  |  |  |
Maturity date of March 2030 | Private Label [Member] | Lexford Portfolio [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and Transactions with Related Parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Principal amount |  |  |  |  | $ 34,600 |  |  |  |  |  |  |  |  |  |  |  |
Maturity date of March 2025 | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and Transactions with Related Parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Base spread (as a percent) |  | 5.50% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Preferred Equity Investments In Mortgage Loans [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and Transactions with Related Parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity investment |  |  |  |  |  |  |  | 9,600 |  |  |  |  |  |  |  |  |
Allowance for credit loss |  |  |  |  |  |  |  | 8,000 |  |  |  |  |  |  |  |  |
Bridge Loan [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and Transactions with Related Parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Principal amount |  |  |  |  |  |  |  | 35,000 |  |  |  |  |  |  |  |  |
Bridge Loan [Member] | Single Family [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and Transactions with Related Parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loan committed |  |  |  |  |  |  |  | 16,000 |  |  | $ 32,500 |  |  |  |  |  |
Investment made |  |  |  |  |  |  |  |  |  |  | $ 3,500 |  |  |  |  |  |
Bridge Loan [Member] | Maturity Date Of June 2021 [Member] | Lexford Portfolio [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and Transactions with Related Parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Base spread (as a percent) |  |  |  |  |  |  | 4.00% |  |  |  |  |  |  |  |  |  |
Paydowns of principal made by borrower |  |  |  |  |  |  |  |  |  |  |  | $ 250,000 |  |  |  |  |
Unsecured financing provided by an unsecured lender to certain parent entities of the property owners |  |  |  |  |  |  |  | 50,000 |  |  |  |  |  |  |  |  |
Distribution received |  |  |  |  |  |  |  | 4,700 |  |  |  |  |  |  |  |  |
Bridge Loan [Member] | Matures In May 2025 | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member] | Subsequent event |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and Transactions with Related Parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Base spread (as a percent) | 5.25% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
LIBOR floor (as a percentage) | 0.75% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Bridge loan, six multifamily properties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and Transactions with Related Parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
UPB converted to a mezzanine loan |  |  |  |  |  | $ 2,000 |  |  |  |  |  |  |  |  |  |  |
Lexford Portfolio [Member] | Maturity date of March 2030 | Private Label [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and Transactions with Related Parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fixed rate of interest (as a percent) |  |  |  |  | 3.30% |  |  |  |  |  |  |  |  |  |  |  |
Lexford Portfolio [Member] | Bridge Loan [Member] | Maturity date December 2029 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and Transactions with Related Parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maximum exposure under guaranty |  |  |  |  |  |  |  | 600,000 |  |  |  |  |  |  |  |  |
ACM, Certain executives and Consortium of independent outside investors | AMAC III |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and Transactions with Related Parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest income recorded |  |  |  |  |  |  |  | 700 | 300 |  |  |  |  |  |  |  |
Amount invested |  |  |  |  |  |  |  | 25,200 |  |  |  | $ 30,000 |  |  |  |  |
Ownership interest (as a percent) |  |  |  |  |  |  |  |  |  |  |  | 18.00% |  |  |  |  |
ACM, Certain executives and Consortium of independent outside investors | Private Label [Member] | AMAC III |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and Transactions with Related Parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of ownership interest of related party in the entity |  |  |  |  |  |  |  |  |  |  |  | 100.00% |  |  |  |  |
Amount of loan to related party |  |  |  |  |  |  |  |  |  |  |  | $ 15,600 |  |  |  |  |
ACM, Certain executives and Consortium of independent outside investors | Mezzanine Loan [Member] | Matures in April 2023 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and Transactions with Related Parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fixed rate of interest (as a percent) |  |  |  |  |  |  |  |  |  |  | 9.00% |  |  |  |  |  |
ACM, Certain executives and Consortium of independent outside investors | AMAC III |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and Transactions with Related Parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss on investment |  |  |  |  |  |  |  | 400 | 500 |  |  |  |  |  |  |  |
ACM, Certain executives and Consortium of independent outside investors | AMAC III | Private Label [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and Transactions with Related Parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fixed rate of interest (as a percent) |  |  |  |  |  |  |  |  |  |  |  | 3.735% |  |  |  |  |
ACM | Residential Mortgage Banking Company Acquisitions [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and Transactions with Related Parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest income recorded |  |  |  |  |  |  |  | $ 900 | 5,000 |  |  |  |  |  |  |  |
Acquisition purchase price |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 9,600 |
Noncontrolling interest in equity method investment acquired (as a percent) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 50.00% |
Indirect ownership percentage |  |  |  |  |  |  |  | 12.30% |  |  |  |  |  |  |  |  |
Cash distribution received |  |  |  |  |  |  |  |  | 7,500 |  |  |  |  |  |  |  |
ACM | Agency Platform Acquisition [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and Transactions with Related Parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of shares held by related party | shares |  |  |  |  |  |  |  | 2,535,870 |  |  |  |  |  |  |  |  |
OP units hold as part of acquisition | shares |  |  |  |  |  |  |  | 10,615,085 |  |  |  |  |  |  |  |  |
Aggregate percentage of voting power held by related party |  |  |  |  |  |  |  | 6.60% |  |  |  |  |  |  |  |  |
ACM | Preferred Equity Investments In Mortgage Loans [Member] | Single Family [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and Transactions with Related Parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Investment made |  |  |  |  |  |  |  |  |  |  | $ 4,600 |  |  |  |  |  |
ACM | Bridge Loan [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and Transactions with Related Parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity participation interest (as a percentage) |  |  |  |  |  |  |  |  |  |  | 18.90% |  |  |  |  |  |
ACM | Bridge Loan [Member] | Single Family [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and Transactions with Related Parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loan committed |  |  |  |  |  |  |  |  |  |  | $ 30,500 |  |  |  |  |  |
ACM | Bridge Loan [Member] | Single Family [Member] | Subsequent event |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and Transactions with Related Parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loan committed upsized | $ 38,400 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consortium of investors including other unaffiliated investors, certain of officers and chief executive officer | Matures in April 2023 | Multifamily [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and Transactions with Related Parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of properties owned | item |  |  |  |  |  |  |  |  |  |  | 2 |  |  |  |  |  |
Consortium of investors including other unaffiliated investors, certain of officers and chief executive officer | Maturity date of August 2022 | One multifamily property |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and Transactions with Related Parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Principal amount |  |  |  |  |  |  |  |  |  |  | $ 35,400 |  |  |  |  |  |
Consortium of investors including other unaffiliated investors, certain of officers and chief executive officer | Preferred Equity Investments In Mortgage Loans [Member] | Maturity date of September 2019 | Multifamily [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and Transactions with Related Parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity investment |  |  |  |  |  |  |  |  |  |  | 3,400 |  |  |  |  |  |
Consortium of investors including other unaffiliated investors, certain of officers and chief executive officer | Bridge loan, one multifamily property | Maturity date of August 2022 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and Transactions with Related Parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Principal amount |  |  |  |  |  |  |  |  |  |  | $ 34,000 |  |  |  |  |  |
Consortium of investors including other unaffiliated investors, certain of officers and chief executive officer | Bridge loan, one multifamily property | Maturity date of August 2022 | London Interbank Offered Rate (LIBOR) [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and Transactions with Related Parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Variable rate, spread (as a percent) |  |  |  |  |  |  |  |  |  |  | 3.50% |  |  |  |  |  |
Consortium of investors including other unaffiliated investors, certain of officers and chief executive officer | Bridge loan, two multifamily properties | Matures in April 2023 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and Transactions with Related Parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Principal amount |  |  |  |  |  |  |  |  |  |  | $ 14,800 |  |  |  |  |  |
Percentage of ownership interest of related party in the entity |  |  |  |  |  |  |  |  |  |  | 50.00% |  |  |  |  |  |
Consortium of investors including other unaffiliated investors, certain of officers and chief executive officer | AMAC III | Bridge loan, one multifamily property |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and Transactions with Related Parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Principal amount |  |  |  |  |  |  |  |  |  |  |  | $ 34,000 |  |  |  |  |
Consortium of investors including an immediate family member of our officers | Multifamily [Member] | Federal National Mortgage Association Certificates and Obligations (FNMA) [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and Transactions with Related Parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Principal amount |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 46,900 |  |  |
Interest income recorded |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 100 |  |  |
Percentage of ownership interest of related party in the entity |  |  |  |  |  |  |  |  |  |  |  |  |  | 17.60% |  |  |
Percentage of maximum loss-sharing obligation unpaid principal balance |  |  |  |  |  |  |  |  |  |  |  |  |  | 5.00% |  |  |
Consortium of investors including an immediate family member of our officers | AMAC III | Bridge loan, one multifamily property |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and Transactions with Related Parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Principal amount |  |  |  |  |  |  |  |  |  |  |  | $ 7,000 |  |  |  |  |
Certain certain officers, chief executive officer, and other unaffiliated investors | Bridge Loan [Member] | Maturity date of August 2023 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and Transactions with Related Parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest income recorded |  |  |  |  |  |  |  | $ 500 | 300 |  |  |  |  |  |  |  |
Percentage of ownership interest of related party in the entity |  |  |  |  |  |  |  |  |  |  |  |  | 75.00% |  |  |  |
Certain certain officers, chief executive officer, and other unaffiliated investors | Bridge loan, several multifamily properties | Maturity date of August 2023 | London Interbank Offered Rate (LIBOR) [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and Transactions with Related Parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Base spread (as a percent) |  |  |  |  |  |  |  |  |  |  |  |  | 4.75% |  |  |  |
LIBOR floor (as a percentage) |  |  |  |  |  |  |  |  |  |  |  |  | 0.25% |  |  |  |
Certain certain officers, chief executive officer, and other unaffiliated investors | Bridge loan, one multifamily property | Maturity date of August 2023 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and Transactions with Related Parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Principal amount |  |  |  |  |  |  |  |  |  |  |  |  | $ 21,700 |  |  |  |
Certain certain officers, chief executive officer, and other unaffiliated investors | Bridge loan, two multifamily properties | Matures in April 2023 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and Transactions with Related Parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest income recorded |  |  |  |  |  |  |  | 100 | 100 |  |  |  |  |  |  |  |
Certain certain officers, chief executive officer, and other unaffiliated investors | Bridge loan, two multifamily properties | Maturity date of 2020 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and Transactions with Related Parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Base spread (as a percent) |  |  |  |  |  |  |  |  |  |  |  |  |  | 5.25% |  |  |
Certain certain officers, chief executive officer, and other unaffiliated investors | Bridge loan, two multifamily properties | Maturity date of October 2022 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and Transactions with Related Parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Principal amount |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 28,000 |  |  |
Base spread (as a percent) |  |  |  |  |  |  |  |  |  |  |  |  |  | 1.80% |  |  |
Interest income recorded |  |  |  |  |  |  |  | $ 500 |  |  |  |  |  |  |  |  |
Percentage of ownership interest of related party in the entity |  |  |  |  |  |  |  |  |  |  |  |  |  | 45.00% |  |  |
Number of properties owned | property |  |  |  |  |  |  |  |  |  |  |  |  |  | 2 |  |  |
Number of bridge loans originated | item |  |  |  |  |  |  |  |  |  |  |  |  |  | 2 |  |  |
Refinanced loan amount |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 31,100 |  |  |
Certain certain officers, chief executive officer, and other unaffiliated investors | Bridge loan, two multifamily properties | Maturity date of October 2022 | London Interbank Offered Rate (LIBOR) [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and Transactions with Related Parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Base spread (as a percent) |  |  |  |  |  |  |  |  |  |  |  |  |  | 4.00% |  |  |
Certain certain officers, chief executive officer, and other unaffiliated investors | Bridge loan, two multifamily properties | Maturity date of October 2022 | Minimum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and Transactions with Related Parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
LIBOR floor (as a percentage) |  |  |  |  |  |  |  |  |  |  |  |  |  | 1.24% |  |  |
Certain certain officers, chief executive officer, and other unaffiliated investors | Bridge loan, two multifamily properties | Maturity date of October 2022 | Maximum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and Transactions with Related Parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
LIBOR floor (as a percentage) |  |  |  |  |  |  |  |  |  |  |  |  |  | 1.54% |  |  |
Chairman and Chief executive officer | Minimum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and Transactions with Related Parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership interest limit of our common stock under company charter (as a percent) |  |  |  |  |  |  |  | 5.00% |  |  |  |  |  |  |  |  |
President [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and Transactions with Related Parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of our former Manager's outstanding membership interest of related party in another related party |  |  |  |  |  |  |  | 35.00% |  |  |  |  |  |  |  |  |
Director [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and Transactions with Related Parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of portfolios of multifamily properties |  |  |  |  |  |  |  | 2 |  |  |  |  |  |  |  |  |
Director [Member] | Ginkgo Investment Company LLC |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and Transactions with Related Parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of managing member |  |  |  |  |  |  |  |  |  |  |  |  |  | 33.00% |  |  |
Immediate family member of chief executive officer | LLC |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and Transactions with Related Parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of ownership interest of related party in the entity |  |  |  |  |  |  |  |  |  | 10.00% |  |  |  |  |  |  |
Immediate family member of chief executive officer | Matures in October 2023 | Preferred equity interest financing agreement |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and Transactions with Related Parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest income recorded |  |  |  |  |  |  |  | $ 500 |  |  |  |  |  |  |  |  |
Immediate family member of chief executive officer | Maturity date of March 2025 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and Transactions with Related Parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of ownership interest of related party in the entity |  | 10.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Immediate family member of chief executive officer | Preferred Equity Investments In Mortgage Loans [Member] | Matures in October 2023 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and Transactions with Related Parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fixed rate of interest (as a percent) |  |  |  |  |  |  |  |  |  |  | 12.00% |  |  |  |  |  |
Immediate family member of chief executive officer | Preferred Equity Investments In Mortgage Loans [Member] | Matures in April 2023 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and Transactions with Related Parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fixed rate of interest (as a percent) |  |  |  |  |  |  |  |  |  |  | 12.00% |  |  |  |  |  |
Immediate family member of chief executive officer | Bridge Loan [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and Transactions with Related Parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity participation interest (as a percentage) |  |  |  |  |  |  |  |  |  |  | 21.80% |  |  |  |  |  |
Immediate family member of chief executive officer | Bridge Loan [Member] | Matures in October 2023 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and Transactions with Related Parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Base spread (as a percent) |  |  |  |  |  |  |  |  |  |  | 5.50% |  |  |  |  |  |
Interest income recorded |  |  |  |  |  |  |  |  | 200 |  |  |  |  |  |  |  |
Immediate family member of chief executive officer | Bridge Loan [Member] | Matures in October 2023 | London Interbank Offered Rate (LIBOR) [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and Transactions with Related Parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
LIBOR floor (as a percentage) |  |  |  |  |  |  |  |  |  |  | 0.75% |  |  |  |  |  |
Immediate family member of chief executive officer | Bridge Loan [Member] | Matures in May 2023 | London Interbank Offered Rate (LIBOR) [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and Transactions with Related Parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Base spread (as a percent) |  |  |  |  |  |  |  |  |  |  | 5.50% |  |  |  |  |  |
LIBOR floor (as a percentage) |  |  |  |  |  |  |  |  |  |  | 0.75% |  |  |  |  |  |
Amount invested |  |  |  |  |  |  |  | 21,100 |  |  |  |  |  |  |  |  |
Immediate family member of chief executive officer | Bridge Loan [Member] | Matures in April 2023 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and Transactions with Related Parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest income recorded |  |  |  |  |  |  |  | 300 |  |  |  |  |  |  |  |  |
Principal Paydowns |  |  |  |  |  |  |  |  |  |  | $ 700 |  |  |  |  |  |
Lexford Portfolio [Member] | Bridge Loan [Member] | Maturity Date Of June 2021 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and Transactions with Related Parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Principal amount |  |  |  |  |  |  | $ 280,500 |  |  |  |  |  |  |  |  |  |
Number of bridge loans originated | loan |  |  |  |  |  |  | 12 |  |  |  |  |  |  |  |  |  |
Number of multifamily properties renovated | property |  |  |  |  |  |  | 72 |  |  |  |  |  |  |  |  |  |
Entity controlled by our chief executive officer |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and Transactions with Related Parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Reimbursement for flights chartered by the company's executives |  |  |  |  |  |  |  | 200 |  |  |  |  |  |  |  |  |
Certain Officers and Managers | Mezzanine Loan [Member] | Maturity date of January 2024 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and Transactions with Related Parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fixed rate of interest (as a percent) |  |  |  |  |  | 10.00% |  |  |  |  |  |  |  |  |  |  |
Certain Officers and Managers | Bridge loan, six multifamily properties | Maturity date of 2019 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and Transactions with Related Parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Base spread (as a percent) |  |  |  |  |  |  |  |  |  |  |  | 4.50% |  |  |  |  |
Number of properties owned | property |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 6 |  |
Proceeds from repayment in full |  |  |  |  |  |  |  |  |  |  |  | $ 10,900 |  | $ 6,800 |  |  |
Number of bridge loans paid off | loan |  |  |  |  |  |  |  |  |  |  |  |  | 4 | 1 |  |  |
Remaining bridge loan from repayment |  |  |  |  |  |  |  |  |  |  |  | 12,900 |  |  |  |  |
Proceeds from repayment of debt |  |  |  |  |  |  |  |  |  |  |  | $ 28,300 |  |  |  |  |
Certain Officers and Managers | Bridge loan, six multifamily properties | Maturity date of 2019 | London Interbank Offered Rate (LIBOR) [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and Transactions with Related Parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Base spread (as a percent) |  |  |  |  |  |  |  |  |  |  |  | 0.25% |  |  |  |  |
Certain Officers and Managers | Bridge loan, six multifamily properties | Maturity date of 2019 | Minimum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and Transactions with Related Parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of ownership interest of related party in the entity |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 10.50% |  |
Certain Officers and Managers | Bridge loan, six multifamily properties | Maturity date of 2019 | Maximum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and Transactions with Related Parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of ownership interest of related party in the entity |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 12.00% |  |
Certain Officers and Managers | Bridge loan, six multifamily properties | Maturity date of January 2019 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and Transactions with Related Parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Principal amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 48,000 |  |
Certain Officers and Managers | Bridge loan, six multifamily properties | Maturity date of January 2024 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and Transactions with Related Parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest income recorded |  |  |  |  |  |  |  | $ 100 |  |  |  |  |  |  |  |  |
Ginkgo Investment Company LLC | Federal National Mortgage Association Certificates and Obligations (FNMA) [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and Transactions with Related Parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of maximum loss-sharing obligation unpaid principal balance |  |  |  |  |  |  |  |  |  |  |  |  |  | 20.00% |  |  |
Loan purchased a multifamily apartment complex which assumed |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 8,300 |  |  |
Percentage of ownership after transaction |  |  |  |  |  |  |  | 3.60% |  |  |  |  |  |  |  |  |
Percentage of loan assumption fee |  |  |  |  |  |  |  |  |  |  |  |  |  | 1.00% |  |  |
Servicing revenue |  |  |  |  |  |  |  | $ 100 |  |  |  |  |  |  |  |  |
Consortium of affiliated investors | Lexford Portfolio [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and Transactions with Related Parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Management fee, percentage of gross revenues of underlying properties |  |  |  |  |  |  |  | 4.75% |  |  |  |  |  |  |  |  |
Real estate investment fund sponsored and managed by Chief executive officer and immediate family member of chief executive officer | Bridge Loan [Member] | Maturity date of March 2024 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and Transactions with Related Parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest income recorded |  |  |  |  |  |  |  | $ 1,400 | $ 700 |  |  |  |  |  |  |  |
Loan committed |  |  |  |  |  |  |  |  |  | $ 63,400 |  |  |  |  |  |  |
Real estate investment fund sponsored and managed by Chief executive officer and immediate family member of chief executive officer | Bridge Loan [Member] | Maturity date of March 2024 | London Interbank Offered Rate (LIBOR) [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and Transactions with Related Parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Base spread (as a percent) |  |  |  |  |  |  |  |  |  | 3.75% |  |  |  |  |  |  |
LIBOR floor (as a percentage) |  |  |  |  |  |  |  |  |  | 0.25% |  |  |  |  |  |  |
Real estate investment fund sponsored and managed by Chief executive officer and immediate family member of chief executive officer | Bridge Loan [Member] | Maturity date of March 2025 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and Transactions with Related Parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Principal amount |  | $ 46,200 |  | $ 39,400 |  |  |  |  |  |  |  |  |  |  |  |  |
Interest income recorded |  |  |  |  |  |  |  | 100 |  |  |  |  |  |  |  |  |
Real estate investment fund sponsored and managed by Chief executive officer and immediate family member of chief executive officer | Bridge Loan [Member] | Maturity date of March 2025 | London Interbank Offered Rate (LIBOR) [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and Transactions with Related Parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity participation interest (as a percentage) |  |  |  | 2.25% |  |  |  |  |  |  |  |  |  |  |  |  |
Base spread (as a percent) |  |  |  | 4.00% |  |  |  |  |  |  |  |  |  |  |  |  |
LIBOR floor (as a percentage) |  |  |  | 0.25% |  |  |  |  |  |  |  |  |  |  |  |  |
Real estate investment fund sponsored and managed by Chief executive officer and immediate family member of chief executive officer | Bridge Loan [Member] | Maturity date of March 2025 | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and Transactions with Related Parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity participation interest (as a percentage) |  | 70.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Real estate investment fund sponsored and managed by Chief executive officer and immediate family member of chief executive officer | Bridge Loan [Member] | Maturity date of May 2025 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and Transactions with Related Parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Principal amount |  |  | $ 67,100 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest income recorded |  |  |  |  |  |  |  | $ 100 |  |  |  |  |  |  |  |  |
Real estate investment fund sponsored and managed by Chief executive officer and immediate family member of chief executive officer | Bridge Loan [Member] | Maturity date of May 2025 | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and Transactions with Related Parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity participation interest (as a percentage) |  |  | 2.25% |  |  |  |  |  |  |  |  |  |  |  |  |  |
Base spread (as a percent) |  |  | 4.63% |  |  |  |  |  |  |  |  |  |  |  |  |  |
LIBOR floor (as a percentage) |  |  | 0.25% |  |  |  |  |  |  |  |  |  |  |  |  |  |
LLC |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and Transactions with Related Parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amount invested |  |  |  |  |  |  |  |  |  | $ 4,200 |  |  |  |  |  |  |
LLC | LLC |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and Transactions with Related Parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership interest (as a percent) |  |  |  |  |  |  |  |  |  | 49.30% |  |  |  |  |  |  |

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- Definition The amount of mortgage loans converted to mezzanine loans during the reporting period. + References No definition available. + Details
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- Definition Represents the percentage of noncontrolling interest in the equity method investment acquired by the entity. + References No definition available. + Details
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- Definition Minimum variable interest rate for loans receivable. + References No definition available. + Details
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- Definition Represents the fixed interest rate on the mortgage loan receivable or the weighted average interest rate on a group of loans. + References No definition available. + Details
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- Definition It represents the refinanced balance with mezzanine loan by unaffiliated borrower. + References No definition available. + Details
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- Definition The number of portfolios of multifamily properties as of the balance sheet date. + References No definition available. + Details
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- Definition The cash inflow associated with outstanding amount of collection, whether partial or full, of long-term loans to a related party. Alternate caption: Proceeds from Advances to Affiliates. + References No definition available. + Details
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- Definition Represents the maximum percentage of ownership interest of the Company's common stock allowed under the company's charter. + References No definition available. + Details
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- Definition Amount of Payments To Purchase Property. + References No definition available. + Details
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- Definition The percentage of equity participation interest. + References No definition available. + Details
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- Definition Represent information pertaining to percentage of loan assumption fee. + References No definition available. + Details
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- Definition Represents the percentage of outstanding membership interest of a related party in another related party. + References No definition available. + Details
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- Definition The minimum amount the entity agreed to fund under the related party commitment. + References No definition available. + Details
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- Definition Represents the percentage of ownership of common stock or equity participation owned by related party. + References No definition available. + Details
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- Definition Represents the number of bridge loan originated with relevant mortgage property owned by related parties. + References No definition available. + Details
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- Definition The amount of reimbursements made to related party during the period for flights chartered by the company's executives. + References No definition available. + Details
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