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v3.20.2

Commitments and Contingencies (Details) $ in Millions | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2020 USD ($) property | Dec. 31, 2019 USD ($) property
Purchase Commitment [Line Items] |  |
Single-family properties sales in escrow | property | 108 | 305
Single-family properties sales in escrow, selling price | $ 26.7 | $ 57.5
Estimated litigation liability | 2.9 |
Surety bond |  |
Purchase Commitment [Line Items] |  |
Surety bonds related to development contracts | 36.0 | 14.5
Single Family Properties |  |
Purchase Commitment [Line Items] |  |
Purchase price of commitment to acquire single-family properties | 99.8 | 75.1
Land |  |
Purchase Commitment [Line Items] |  |
Purchase price of commitment to acquire single-family properties | $ 65.5 | $ 44.3
Commitment To Acquire Properties |  |
Purchase Commitment [Line Items] |  |
Number of properties | property | 396 | 289

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