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Commitments and Contingencies - Additional Information (Details) $ in Millions | 12 Months Ended
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Dec. 31, 2021 USD ($) Agreement | Dec. 31, 2020 USD ($) | Dec. 31, 2019 USD ($)
Commitments And Contingencies [Line Items] |  |  |
Equity method investment period | 3 years |  |
Percentage of expected non-recourse construction debt | 60.00% |  |
Initial minimum co-investment of combined equity | $ | $ 750.0 |  |
Number of joint venture agreements | Agreement | 3 |  |
Compensation expense, recognized | $ | $ 0.1 | $ 0.5 | $ 0.4
Number of deferred compensation agreement with former executive officer | Agreement | 1 |  |
Equity Residential [Member] |  |  |
Commitments And Contingencies [Line Items] |  |  |
Ownership Percentage | 75.00% |  |
Toll Brothers Inc. [Member] |  |  |
Commitments And Contingencies [Line Items] |  |  |
Ownership Percentage | 25.00% |  |

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