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Agreements and Transactions with Related Parties - Other Related Party (Details) $ in Thousands | 1 Months Ended | 3 Months Ended | 6 Months Ended | 12 Months Ended |  |
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Jun. 30, 2021 USD ($) item shares | Mar. 31, 2021 USD ($) | Jan. 31, 2021 | Dec. 31, 2020 USD ($) | Oct. 31, 2020 USD ($) | Aug. 31, 2020 USD ($) | Mar. 31, 2020 USD ($) property | Sep. 30, 2019 USD ($) | Jan. 31, 2019 USD ($) | Jun. 30, 2018 USD ($) property loan | Jun. 30, 2021 USD ($) item shares | Jun. 30, 2020 USD ($) | Jun. 30, 2021 USD ($) item shares | Jun. 30, 2020 USD ($) | Dec. 31, 2019 USD ($) loan | Dec. 31, 2018 USD ($) | Dec. 31, 2017 USD ($) loan property item | Dec. 31, 2016 USD ($) property shares | Dec. 31, 2015 USD ($) | Jul. 31, 2019 USD ($) | Jun. 30, 2019 USD ($)
Agreements and transactions with related parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Due to related party | $ 6,184 |  |  | $ 2,365 |  |  |  |  |  |  | $ 6,184 |  | $ 6,184 |  |  |  |  |  |  |  |
Due from related parties | 11,084 |  |  | 12,449 |  |  |  |  |  |  | 11,084 |  | 11,084 |  |  |  |  |  |  |  |
Entitled to annual fee | $ 300 |  |  |  |  |  |  |  |  |  | $ 300 |  | $ 300 |  |  |  |  |  |  |  |
Equity participation interest (as a percentage) | 33.00% |  |  |  |  |  |  |  |  |  | 33.00% |  | 33.00% |  |  |  |  |  |  |  |
Investment made |  |  |  |  |  |  |  |  |  |  |  |  | $ 2,814,170 | $ 1,117,004 |  |  |  |  |  |  |
Indirect ownership percentage |  |  |  |  |  |  |  |  |  |  |  |  | 9.20% |  |  |  |  |  |  |  |
(Income) loss from equity affiliates |  |  |  |  |  |  |  |  |  |  | $ (4,759) | $ (20,408) | $ (27,010) | (24,401) |  |  |  |  |  |  |
Single-Family Rental |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and transactions with related parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Investment made |  |  |  | 3,500 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating Partnership Units | Special voting preferred shares |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and transactions with related parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of preferred stock shares paired with each OP units | shares |  |  |  |  |  |  |  |  |  |  |  |  | 1 |  |  |  |  |  |  |  |
Preferred equity investments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and transactions with related parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity investment | $ 7,800 |  |  |  |  |  |  |  |  |  | 7,800 |  | $ 7,800 |  |  |  |  |  |  |  |
Preferred equity investments | Single-Family Rental |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and transactions with related parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Investment made |  |  |  |  | $ 4,600 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Bridge loans |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and transactions with related parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Principal amount | 35,000 |  |  |  |  |  |  |  |  |  | 35,000 |  | 35,000 |  |  |  |  |  |  |  |
Bridge loans | Single-Family Rental |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and transactions with related parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loan committed | 1,500 |  |  | $ 32,500 | $ 30,500 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Bridge loans | Preferred equity interest financing agreement |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and transactions with related parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest income recorded |  |  |  |  |  |  |  |  |  |  | 300 | 600 | 700 | 1,400 |  |  |  |  |  |  |
Bridge Loan Several Multifamily Properties [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and transactions with related parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Principal amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 37,500 |  |  |  |  |
Percentage of ownership interest of related party in the entity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 85.00% |  |  |  |  |
Bridge Loan Six Multifamily Properties [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and transactions with related parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
UPB converted to a mezzanine loan |  |  |  |  |  |  |  |  | $ 2,000 |  |  |  |  |  |  |  |  |  |  |  |
Bridge Loan Six Multifamily Properties [Member] | Maturity Date September 2019 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and transactions with related parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Principal amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 12,900 |  |  |
Lexford Portfolio | Maturity date of March 2030 | Private Label |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and transactions with related parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Principal amount |  |  |  |  |  |  | $ 34,600 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fixed rate of interest (as a percent) |  |  |  |  |  |  | 3.30% |  |  |  |  |  |  |  |  |  |  |  |  |  |
Lexford Portfolio | Bridge loans | Maturity Date Of June 2021 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and transactions with related parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Paydowns of principal made by borrower |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 250,000 |  |  |  |  |  |
Base spread (as a percent) |  |  |  |  |  |  |  |  |  | 4.00% |  |  |  |  |  |  |  |  |  |  |
Unsecured financing provided by an unsecured lender to certain parent entities of the property owners | 50,000 |  |  |  |  |  |  |  |  |  | 50,000 |  | 50,000 |  |  |  |  |  |  |  |
ACM, Certain executives and Consortium of independent outside investors | Mature date of April 2030 | Private Label |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and transactions with related parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Principal amount |  |  |  |  |  |  | $ 14,800 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fixed rate of interest (as a percent) |  |  |  |  |  |  | 3.10% |  |  |  |  |  |  |  |  |  |  |  |  |  |
ACM, Certain executives and Consortium of independent outside investors | Mezzanine loans | Mature date of April 2030 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and transactions with related parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of properties owned | property |  |  |  |  |  |  | 2 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of ownership interest of related party in the entity |  |  |  |  |  |  | 50.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest income recorded |  |  |  |  |  |  |  |  |  |  | 100 |  | 100 |  |  |  |  |  |  |  |
Equity investment |  |  |  |  |  |  | $ 3,400 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fixed rate of interest (as a percent) |  |  |  |  |  |  | 9.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |
ACM, Certain executives and Consortium of independent outside investors | Mezzanine loans | Maturity date of March 2030 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and transactions with related parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest income recorded |  |  |  |  |  |  |  |  |  |  |  | 200 |  | 200 |  |  |  |  |  |  |
ACM, Certain executives and Consortium of independent outside investors | AMAC III |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and transactions with related parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amount invested | $ 15,700 |  |  |  |  |  |  |  |  |  | 15,700 |  | 15,700 |  |  |  |  |  |  |  | $ 30,000
Ownership interest (as a percent) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 18.00%
Interest income recorded |  |  |  |  |  |  |  |  |  |  | 300 | 700 | 600 | 1,600 |  |  |  |  |  |  |
Loss on investment |  |  |  |  |  |  |  |  |  |  |  | 500 |  | 600 |  |  |  |  |  |  |
ACM, Certain executives and Consortium of independent outside investors | AMAC III | Private Label |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and transactions with related parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of ownership interest of related party in the entity |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 100.00% |  |  |  |  |  |
Fixed rate of interest (as a percent) |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3.735% |  |  |  |  |  |
Amount of loan to related party |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 15,600 |  |  |  |  |  |
ACM / Our "Former Manager" | Residential Mortgage Banking Company |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and transactions with related parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest income recorded |  |  |  |  |  |  |  |  |  |  | 4,800 | 20,900 | 27,300 | 23,800 |  |  |  |  |  |  |
Noncontrolling interest in equity method investment acquired (as a percent) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 50.00% |  |
Indirect ownership percentage |  |  | 12.30% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 22.50% |  |
Acquisition purchase price |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 9,600 |  |
Cash distribution received |  |  |  |  |  |  |  |  |  |  | $ 5,600 |  | $ 18,700 |  |  |  |  |  |  |  |
ACM / Our "Former Manager" | ACM Acquisition |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and transactions with related parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of preferred stock shares paired with each OP units | shares |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1 |  |  |
Number of shares held by related party | shares | 2,828,629 |  |  |  |  |  |  |  |  |  | 2,828,629 |  | 2,828,629 |  |  |  |  |  |  |  |
OP units hold as part of acquisition | shares |  |  |  |  |  |  |  |  |  |  |  |  | 10,692,668 |  |  |  |  |  |  |  |
Aggregate percentage of voting power held by related party | 8.60% |  |  |  |  |  |  |  |  |  | 8.60% |  | 8.60% |  |  |  |  |  |  |  |
Consortium of investors including other unaffiliated investors, certain of officers and chief executive officer | Bridge Loan Several Multifamily Properties [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and transactions with related parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Principal amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 19,500 |  |  |  |  |
Base spread (as a percent) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 4.00% |  |  |  |  |
Interest income recorded |  |  |  |  |  |  |  |  |  |  |  |  | $ 600 |  |  |  |  |  |  |  |
Consortium of investors including other unaffiliated investors, certain of officers and chief executive officer | Bridge Loan Several Multifamily Properties [Member] | LIBOR |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and transactions with related parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Base spread (as a percent) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2.125% |  |  |  |  |
Consortium of investors including other unaffiliated investors, certain of officers and chief executive officer | Bridge Loan Several Multifamily Properties [Member] | Multifamily |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and transactions with related parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest income recorded |  |  |  |  |  |  |  |  |  |  |  | 300 |  |  |  |  |  |  |  |  |
Consortium of investors including other unaffiliated investors, certain of officers and chief executive officer | Bridge Loan One Multifamily Property [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and transactions with related parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Principal amount | $ 34,000 |  |  |  |  |  |  |  |  |  | $ 34,000 |  | 34,000 |  |  |  |  |  |  |  |
Consortium of investors including other unaffiliated investors, certain of officers and chief executive officer | Bridge Loan One Multifamily Property [Member] | Maturity Date Of August 2022 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and transactions with related parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Principal amount | $ 34,000 |  |  |  |  | $ 35,400 |  |  |  |  | 34,000 |  | 34,000 |  |  |  |  |  |  |  |
Consortium of investors including other unaffiliated investors, certain of officers and chief executive officer | Bridge Loan One Multifamily Property [Member] | Maturity Date Of August 2022 | LIBOR |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and transactions with related parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Variable rate, spread (as a percent) |  |  |  |  |  | 3.50% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consortium of investors including an immediate family member of our officers | Multifamily | Fannie Mae |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and transactions with related parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of maximum loss-sharing obligation unpaid principal balance |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 5.00% |  |  |  |
Principal amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 46,900 |  |  |  |
Percentage of ownership interest of related party in the entity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 17.60% |  |  |  |
Consortium of investors including an immediate family member of our officers | Maximum | Multifamily | Fannie Mae |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and transactions with related parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest income recorded |  |  |  |  |  |  |  |  |  |  |  |  | 100 |  |  |  |  |  |  |  |
Consortium of investors including an immediate family member of our officers | Bridge Loan Several Multifamily Properties [Member] | Multifamily |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and transactions with related parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest income recorded |  |  |  |  |  |  |  |  |  |  |  |  |  | 600 |  |  |  |  |  |  |
Consortium of investors including an immediate family member of our officers | Bridge Loan One Multifamily Property [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and transactions with related parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Principal amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 7,000 |
Certain certain officers, chief executive officer, and other unaffiliated investors | Bridge Loan Several Multifamily Properties [Member] | Maturity Date Of January 2021 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and transactions with related parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Due to related party |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 9,400 |  |  |  |  |
Percentage of ownership interest of related party in the entity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 75.00% |  |  |  |  |
Interest income recorded |  |  |  |  |  |  |  |  |  |  | 100 | 100 | 300 | 300 |  |  |  |  |  |  |
Certain certain officers, chief executive officer, and other unaffiliated investors | Bridge Loan Several Multifamily Properties [Member] | Maturity Date Of January 2021 [Member] | LIBOR |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and transactions with related parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Base spread (as a percent) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 5.00% |  |  |  |  |
Certain certain officers, chief executive officer, and other unaffiliated investors | Bridge Loan Several Multifamily Properties [Member] | Maturity Date Of January 2021 [Member] | Minimum | LIBOR |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and transactions with related parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Base spread (as a percent) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1.25% |  |  |  |  |
Certain certain officers, chief executive officer, and other unaffiliated investors | Bridge Loan One Multifamily Property [Member] | Maturity Date Of June 2021 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and transactions with related parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Principal amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 21,700 |  |  |  |  |
Percentage of ownership interest of related party in the entity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 75.00% |  |  |  |  |
Interest income recorded |  |  |  |  |  |  |  |  |  |  | 300 | 300 | 700 | 700 |  |  |  |  |  |  |
Certain certain officers, chief executive officer, and other unaffiliated investors | Bridge Loan One Multifamily Property [Member] | Maturity Date Of June 2021 [Member] | LIBOR |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and transactions with related parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Base spread (as a percent) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 4.75% |  |  |  |  |
Certain certain officers, chief executive officer, and other unaffiliated investors | Bridge Loan One Multifamily Property [Member] | Maturity Date Of June 2021 [Member] | Minimum | LIBOR |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and transactions with related parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Base spread (as a percent) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1.25% |  |  |  |  |
Certain certain officers, chief executive officer, and other unaffiliated investors | Bridge Loan Two Multifamily Properties [Member] | Maturity date of October 2021 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and transactions with related parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Principal amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 31,100 |  |  |  |
Certain certain officers, chief executive officer, and other unaffiliated investors | Bridge Loan Two Multifamily Properties [Member] | Maturity date of October 2021 | LIBOR |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
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 [Member] | Maturity date of October 2021 | Minimum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and transactions with related parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Base spread (as a percent) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1.80% |  |  |  |
Certain certain officers, chief executive officer, and other unaffiliated investors | Bridge Loan Two Multifamily Properties [Member] | Maturity Date Of Fourth Quarter 2020 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and transactions with related parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Principal amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 28,000 |  |  |  |
Number of properties owned | property |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2 |  |  |  |
Percentage of ownership interest of related party in the entity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 45.00% |  |  |  |
Base spread (as a percent) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 5.25% |  |  |  |
Interest income recorded |  |  |  |  |  |  |  |  |  |  | $ 500 | 500 | $ 1,000 | 1,000 |  |  |  |  |  |  |
Number of bridge loans originated | item |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2 |  |  |  |
Certain certain officers, chief executive officer, and other unaffiliated investors | Bridge Loan Two Multifamily Properties [Member] | Maturity Date Of Fourth Quarter 2020 [Member] | Minimum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
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 [Member] | Maturity Date Of Fourth Quarter 2020 [Member] | Maximum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and transactions with related parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
LIBOR floor (as a percentage) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1.54% |  |  |  |
Chief executive officer | Minimum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and transactions with related parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership interest limit of our common stock under company charter (as a percent) | 5.00% |  |  |  |  |  |  |  |  |  | 5.00% |  | 5.00% |  |  |  |  |  |  |  |
Mr. Ivan Kaufman |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and transactions with related parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of our Former Manager's outstanding membership interest of related party in another related party | 35.00% |  |  |  |  |  |  |  |  |  | 35.00% |  | 35.00% |  |  |  |  |  |  |  |
Board of Directors |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and transactions with related parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of portfolios of multifamily properties | item | 2 |  |  |  |  |  |  |  |  |  | 2 |  | 2 |  |  |  |  |  |  |  |
Board of Directors | Ginkgo Investment Company LLC [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and transactions with related parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of managing member |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 33.00% |  |  |  |
Immediate family member of chief executive officer | Matures in October 2023 [Member] | Preferred equity interest financing agreement |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and transactions with related parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest income recorded |  |  |  |  |  |  |  |  |  |  | $ 100 |  | $ 200 |  |  |  |  |  |  |  |
Immediate family member of chief executive officer | Matures in May 2023 [Member] | Preferred equity interest financing agreement |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and transactions with related parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest income recorded |  |  |  |  |  |  |  |  |  |  | 200 |  | 300 |  |  |  |  |  |  |  |
Immediate family member of chief executive officer | Preferred equity investments | Matures in October 2023 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
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 | Matures in May 2023 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and transactions with related parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fixed rate of interest (as a percent) |  |  |  |  | 12.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Immediate family member of chief executive officer | Bridge loans |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and transactions with related parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity participation interest (as a percentage) |  |  |  | 21.80% | 18.90% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Immediate family member of chief executive officer | Bridge loans | Land |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and transactions with related parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Principal amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 17,700 |  |  |  |  |
Paydowns of principal made by borrower |  |  |  |  |  |  |  | $ 4,700 |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of ownership interest of related party in the entity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 10.80% |  |  |  |  |
Interest income recorded |  |  |  |  |  |  |  |  |  |  |  |  |  | 100 |  |  |  |  |  |  |
Fixed rate of interest (as a percent) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 10.00% |  |  |  |  |
Immediate family member of chief executive officer | Bridge loans | Matures in October 2023 [Member] | LIBOR |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and transactions with related parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Base spread (as a percent) |  |  |  | 5.50% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
LIBOR floor (as a percentage) |  |  |  | 0.75% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Immediate family member of chief executive officer | Bridge loans | Matures in May 2023 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and transactions with related parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Base spread (as a percent) |  |  |  |  | 5.50% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
LIBOR floor (as a percentage) |  |  |  |  | 0.75% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Immediate family member of chief executive officer | Bridge Loan Several Multifamily Properties [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and transactions with related parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of ownership interest of related party in the entity |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 23.90% |  |  |  |  |  |
LIBOR floor (as a percentage) |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2.375% |  |  |  |  |  |
Interest income recorded |  |  |  |  |  |  |  |  |  |  |  | 800 |  | 1,400 |  |  |  |  |  |  |
Immediate family member of chief executive officer | Bridge Loan Several Multifamily Properties [Member] | LIBOR |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and transactions with related parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Base spread (as a percent) |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 4.25% |  |  |  |  |  |
Lexford Portfolio | Preferred equity investments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and transactions with related parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
(Income) loss from equity affiliates |  |  |  |  |  |  |  |  |  |  |  | $ 200 |  | 200 |  |  |  |  |  |  |
Lexford Portfolio | Bridge loans | Maturity Date Of June 2021 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and transactions with related parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Principal amount |  |  |  |  |  |  |  |  |  | $ 280,500 |  |  |  |  |  |  |  |  |  |  |
Interest income recorded |  |  |  |  |  |  |  |  |  |  |  |  | 200 |  |  |  |  |  |  |  |
Maximum exposure under guaranty | $ 609,300 |  |  |  |  |  |  |  |  |  | 609,300 |  | 609,300 |  |  |  |  |  |  |  |
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 |  |  |  |  |  |  |  |  |  |  |  |  | 100 | $ 300 |  |  |  |  |  |  |
Certain Officers And Managers [Member] | Mezzanine loans | Maturity Date January 2024 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and transactions with related parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fixed rate of interest (as a percent) |  |  |  |  |  |  |  |  | 10.00% |  |  |  |  |  |  |  |  |  |  |  |
Certain Officers And Managers [Member] | Bridge Loan Six Multifamily Properties [Member] | Maturity Date September 2019 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and transactions with related parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Principal amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 48,000 |  |  |
Number of properties owned | property |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 6 |  |  |
Base spread (as a percent) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 4.50% |  |  |
Interest income recorded |  |  |  |  |  |  |  |  |  |  |  |  | $ 100 |  |  |  |  |  |  |  |
Number of bridge loans paid off | loan |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 4 |  | 1 |  |  |  |
Proceeds from repayment in full |  |  |  |  |  |  |  |  | $ 10,900 |  |  |  |  |  | $ 28,300 |  | $ 6,800 |  |  |  |
Certain Officers And Managers [Member] | Bridge Loan Six Multifamily Properties [Member] | Maturity Date September 2019 [Member] | Minimum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and transactions with related parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of ownership interest of related party in the entity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 10.50% |  |  |
Base spread (as a percent) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0.25% |  |  |
Certain Officers And Managers [Member] | Bridge Loan Six Multifamily Properties [Member] | Maturity Date September 2019 [Member] | Maximum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and transactions with related parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of ownership interest of related party in the entity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 12.00% |  |  |
Ginkgo Investment Company LLC [Member] | Fannie Mae |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and transactions with related parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loan purchased a multifamily apartment complex which assumed |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 8,300 |  |  |  |
Percentage of maximum loss-sharing obligation unpaid principal balance |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 20.00% |  |  |  |
Percentage of loan assumption fee |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1.00% |  |  |  |
Percentage of ownership after transaction |  |  |  |  |  |  |  |  |  |  |  |  | 3.60% |  |  |  |  |  |  |  |
Ginkgo Investment Company LLC [Member] | Maximum | Fannie Mae |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and transactions with related parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Servicing revenue |  |  |  |  |  |  |  |  |  |  |  |  | $ 100 |  |  |  |  |  |  |  |
Consortium Of Affiliated Investors [Member] | Lexford Portfolio |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
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 imediate family member of chief executive officer | Bridge loans | Maturity date of March 2024 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and transactions with related parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Principal amount |  | $ 63,400 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest income recorded |  |  |  |  |  |  |  |  |  |  | $ 700 |  | $ 700 |  |  |  |  |  |  |  |
Real estate investment fund sponsored and managed by Chief executive officer and imediate family member of chief executive officer | Bridge loans | Maturity date of March 2024 | LIBOR |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreements and transactions with related parties |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Base spread (as a percent) |  | 3.75% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
LIBOR floor (as a percentage) |  | 0.25% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |

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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 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 The percentage points (also referred to as 'margin') added to the reference rate as stated in the loan agreement and used to compute the variable rate on the loans receivable. For instance, the loan agreement might state that the interest rate the borrower is obligated to pay is the London Interbank Offered Rate (LIBOR) plus three quarters (3/4) of a percentage point adjusted quarterly (each three months). LIBOR in this example is the index or reference rate, 3/4 percentage point is the margin, the reference rate plus the margin is the fully indexed rate. This element would be used to report separately the margin. + References No definition available. + Details
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