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Related Party Transactions (Details) | 1 Months Ended | 3 Months Ended | 9 Months Ended |
--- | --- | --- | --- | ---
Aug. 31, 2025 USD ($) | Apr. 30, 2024 USD ($) | Apr. 30, 2023 USD ($) | Aug. 31, 2022 USD ($) community | Nov. 30, 2021 USD ($) | Sep. 30, 2021 | Oct. 31, 2018 USD ($) apartment | May 31, 2018 USD ($) apartment | Sep. 30, 2025 USD ($) | Sep. 30, 2024 USD ($) | Sep. 30, 2025 USD ($) | Sep. 30, 2024 USD ($) | Dec. 31, 2024 USD ($)
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Payments to acquire equity method investments |  |  |  |  |  |  |  |  |  |  | $ 31,024,000 | $ 4,977,000 |
Notes and other receivables |  |  |  |  |  |  |  |  | $ 221,628,000 |  | 221,628,000 |  | $ 206,706,000
Apartment home community development development in Burlingame, CA |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Commitment funded amount |  |  | $ 11,200,000 |  |  |  |  |  |  |  |  |  |
Apartment home community in Ventura, CA |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Commitment funded amount |  |  |  |  | $ 18,300,000 |  |  |  |  |  | 11,000,000 |  |
Commitment to fund, amount |  |  |  |  | $ 13,000,000 |  |  |  |  |  |  |  |
Commitment to unfund preferred equity investment in the project |  |  |  |  |  |  |  |  |  |  | 2,000,000 |  |
Related Party |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Notes receivable |  |  |  | $ 11,200,000 |  |  |  |  |  |  |  |  |
Notes receivable, interest rate |  |  |  | 9.50% |  |  |  |  |  |  |  |  |
Number of communities owned | community |  |  |  | 3 |  |  |  |  |  |  |  |  |
Related Party | Apartment home community development development in Burlingame, CA |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Payments to acquire equity method investments |  |  |  |  |  |  | $ 18,600,000 |  |  |  |  |  |
Apartment homes | apartment |  |  |  |  |  |  | 268 |  |  |  |  |  |
Preferred return rate |  |  | 11.00% |  |  | 9.00% | 12.00% |  |  |  |  |  |
Related Party | Related Party Bridge Loan On Property Acquired By Wesco I |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Notes receivable | $ 81,200,000 |  |  |  |  |  |  |  |  |  |  |  |
Notes receivable, interest rate | 5.50% |  |  |  |  |  |  |  |  |  |  |  |
Related Party | Related Party Bridge Loan On Property Acquired By BEX II |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Notes receivable |  | $ 53,600,000 |  |  |  |  |  |  |  |  |  |  |
Notes receivable, interest rate |  | 1.50% |  |  |  |  |  |  |  |  |  |  |
Related Party | Marcus & Millichap Company (MMC) |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Brokerage commissions |  |  |  |  |  |  |  |  | 0 | $ 0 | $ 0 | 0 |
Related Party | Marcus & Millichap Company (MMC) | Apartment home community in Ventura, CA |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Apartment homes | apartment |  |  |  |  |  |  |  | 400 |  |  |  |  |
Preferred return rate |  |  |  |  |  |  |  | 10.25% |  |  | 9.00% |  |
Commitment to fund preferred equity investment |  |  |  |  |  |  |  | $ 26,500,000 |  |  |  |  |
Affiliated Entity |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Notes and other receivables |  |  |  |  |  |  |  |  | 88,100,000 |  | $ 88,100,000 |  | $ 5,600,000
Management and Other Fees From Affiliates | Related Party |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Related party transaction, amounts of transaction |  |  |  |  |  |  |  |  | 2,400,000 | 2,800,000 | 7,200,000 | 8,400,000 |
Revenues from Development and Redevelopment Fees | Related Party |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Related party transaction, amounts of transaction |  |  |  |  |  |  |  |  | $ 100,000 | $ 200,000 | $ 100,000 | $ 500,000 |

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