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Real Estate Disposition Activities (Details) ft² in Thousands, $ in Thousands | 3 Months Ended | 12 Months Ended | 24 Months Ended
--- | --- | --- | ---
Dec. 31, 2021 USD ($) ft² residential_condominium home community | Jun. 30, 2021 USD ($) home | Mar. 31, 2021 USD ($) home | Dec. 31, 2021 USD ($) ft² residential_condominium land_parcel community home | Dec. 31, 2020 USD ($) home | Dec. 31, 2019 USD ($) home | Dec. 31, 2021 USD ($) ft² residential_condominium community
Summary of income from discontinued operations |  |  |  |  |  |  |
Gain on sale of communities |  |  |  | $ 602,235 | $ 340,444 | $ 166,105 |
Number of land parcels sold | land_parcel |  |  |  | 1 |  |  |
Number of communities held for sale | community | 1 |  |  | 1 |  |  | 1
Number of residential condominiums sold | residential_condominium |  |  |  | 53 |  |  | 123
Number of residential condominiums remaining to be sold | residential_condominium | 49 |  |  | 49 |  |  | 49
Gain on for-sale condominiums |  |  |  | $ 3,110 | 8,213 | 0 |
Other selling, general and administrative expense |  |  |  | 4,087 | 5,662 | $ 3,812 |
For-sale condominium inventory | $ 146,535 |  |  | 146,535 | $ 267,219 |  | $ 146,535
eaves Stamford |  |  |  |  |  |  |
Summary of income from discontinued operations |  |  |  |  |  |  |
Number of apartment homes sold | home |  |  | 238 |  |  |  |
Gross sales price |  |  | $ 72,000 |  |  |  |
Net cash proceeds |  |  | $ 70,062 |  |  |  |
Avalon Norwalk |  |  |  |  |  |  |
Summary of income from discontinued operations |  |  |  |  |  |  |
Number of apartment homes sold | home |  | 311 |  |  |  |  |
Gross sales price |  | $ 103,000 |  |  |  |  |
Net cash proceeds |  | $ 101,422 |  |  |  |  |
AVA Cortez Hill |  |  |  |  |  |  |
Summary of income from discontinued operations |  |  |  |  |  |  |
Number of apartment homes sold | home |  | 299 |  |  |  |  |
Gross sales price |  | $ 96,500 |  |  |  |  |
Net cash proceeds |  | $ 94,648 |  |  |  |  |
Avalon Redmond Place |  |  |  |  |  |  |
Summary of income from discontinued operations |  |  |  |  |  |  |
Number of apartment homes sold | home |  | 222 |  |  |  |  |
Gross sales price |  | $ 97,700 |  |  |  |  |
Net cash proceeds |  | $ 86,750 |  |  |  |  |
Avalon Bronxville |  |  |  |  |  |  |
Summary of income from discontinued operations |  |  |  |  |  |  |
Number of apartment homes sold | home |  | 110 |  |  |  |  |
Gross sales price |  | $ 89,000 |  |  |  |  |
Net cash proceeds |  | $ 88,088 |  |  |  |  |
Avalon Glen Cove & Avalon Glen Cove North |  |  |  |  |  |  |
Summary of income from discontinued operations |  |  |  |  |  |  |
Number of apartment homes sold | home |  | 367 |  |  |  |  |
Gross sales price |  | $ 126,000 |  |  |  |  |
Net cash proceeds |  | $ 125,564 |  |  |  |  |
eaves Lawrenceville |  |  |  |  |  |  |
Summary of income from discontinued operations |  |  |  |  |  |  |
Number of apartment homes sold | home | 632 |  |  |  |  |  |
Gross sales price | $ 208,000 |  |  |  |  |  |
Net cash proceeds | $ 203,705 |  |  |  |  |  |
Avalon at Center Place |  |  |  |  |  |  |
Summary of income from discontinued operations |  |  |  |  |  |  |
Number of apartment homes sold | home | 225 |  |  |  |  |  |
Gross sales price | $ 75,000 |  |  |  |  |  |
Net cash proceeds | $ 71,841 |  |  |  |  |  |
Other real estate |  |  |  |  |  |  |
Summary of income from discontinued operations |  |  |  |  |  |  |
Gross sales price |  |  |  | 7,858 |  |  |
Net cash proceeds |  |  |  | $ 8,150 |  |  |
Wholly owned properties |  |  |  |  |  |  |
Summary of income from discontinued operations |  |  |  |  |  |  |
Number of apartment communities sold | community |  |  |  | 9 |  |  |
Number of apartment homes sold | home |  |  |  | 2,404 | 1,817 | 1,660 |
Sale of communities gross sales price |  |  |  | $ 867,200 |  |  |
Gain on sale of communities |  |  |  | 602,235 |  |  |
Gross sales price |  |  |  | 875,058 | $ 634,250 | $ 431,280 |
Net cash proceeds |  |  |  | 850,230 | $ 619,773 | 422,041 |
Repayments of secured debt |  |  |  |  |  | $ 21,700 |
The Park Loggia |  |  |  |  |  |  |
Summary of income from discontinued operations |  |  |  |  |  |  |
Net cash proceeds |  |  |  | $ 135,458 |  |  |
Number of residential units in development | residential_condominium | 172 |  |  | 172 |  |  | 172
Commercial square feet | ft² | 66 |  |  | 66 |  |  | 66
Gain on for-sale condominiums |  |  |  | $ 3,110 |  |  |

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