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v3.19.3.a.u2

Subsequent Events (Details) | 1 Months Ended | 12 Months Ended
--- | --- | ---
Feb. 29, 2020 USD ($) | Jan. 31, 2020 USD ($) community apartment | Dec. 31, 2019 community unit | Dec. 31, 2018 community unit
Subsequent Event [Line Items] |  |  |  |
Number of units acquired | unit |  |  | 849 |
Subsequent Event |  |  |  |
Subsequent Event [Line Items] |  |  |  |
Proceeds from related party debt |  | $ 85,800,000 |  |
Percentage of price to par value | 99.628% |  |  |
Apartment Building |  |  |  |
Subsequent Event [Line Items] |  |  |  |
Number of communities acquired | community |  |  | 4 | 1
Number of units acquired | unit |  |  | 849 | 166
Canadian Pension Plan Investment Board (CPPIB) | Subsequent Event |  |  |  |
Subsequent Event [Line Items] |  |  |  |
Limited partnership interest |  | 45.00% |  |
Future value of development |  | $ 1,000,000,000.0 |  |
Canadian Pension Plan Investment Board (CPPIB) | Apartment Building | Subsequent Event |  |  |  |
Subsequent Event [Line Items] |  |  |  |
Number of communities acquired | community |  | 6 |  |
Number of units acquired | apartment |  | 2,020 |  |
Unsecured Bonds 2.650% | Senior Notes | Subsequent Event |  |  |  |
Subsequent Event [Line Items] |  |  |  |
Proceeds from issuance of unsecured debt | $ 500,000,000.0 |  |  |
Coupon rate | 2.65% |  |  |

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