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v3.22.2

Related Party Transactions (Details) $ in Millions | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Jun. 30, 2022 USD ($) Lot | Jun. 30, 2021 USD ($) Lot | Jun. 30, 2022 USD ($) Lot | Jun. 30, 2021 USD ($) Lot | Sep. 30, 2021 USD ($) Lot
Related Party Transaction [Line Items] |  |  |  |  |
Number of Units in Real Estate Property | Lot | 65,300 |  | 65,300 |  | 64,400
Number of Lots Sold | Lot | 3,473 | 3,858 | 13,777 | 11,013 |
Revenue, Net (Deprecated 2018-01-31) | $ 308.5 | $ 312.9 | $ 1,137.7 | $ 907.1 |
D.R. Horton, Inc. [Member] |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Related Party Transaction, Selling, General and Administrative Expenses from Transactions with Related Party |  |  | 3.1 | 2.9 |
Related Party Transaction, Expenses from Transactions with Related Party |  |  | 5.5 | 3.4 |
Costs and Expenses, Related Party |  |  | 5.6 | 5.5 |
Deferred Revenue, Period Increase (Decrease) | 0.5 | (3.9) | 2.1 | (3.9) |
Related Party Transaction, Purchases from Related Party | 0.4 | $ 1.3 | 2.0 | $ 4.2 |
Payments for Commissions | 0.2 |  |  |  |
Due to Related Parties, Current | $ 1.1 |  | $ 1.1 |  | $ 6.7
D.R. Horton, Inc. [Member] | Maximum [Member] |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Related Party Transaction, Rate |  |  | 16.00% |  |
D.R. Horton, Inc. [Member] | Minimum [Member] |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Related Party Transaction, Rate |  |  | 12.00% |  |
D.R. Horton, Inc. [Member] |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Number of Lots Sold | Lot | 3,038 | 3,719 | 11,823 | 10,466 |
Revenue from Related Parties | $ 257.6 | $ 300.4 | $ 975.7 | $ 860.0 |
D.R. Horton, Inc. [Member] | Other Income |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Revenue from Related Parties | $ 0.0 | 2.4 | $ 0.0 | 2.4 |
Under Contract [Member] | D.R. Horton, Inc. [Member] |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Number of Units in Real Estate Property | Lot | 19,300 |  | 19,300 |  | 21,000
Related Party Transaction, Purchase Obligation from Parent | $ 1,496.5 |  | $ 1,496.5 |  | $ 1,582.7
Under Contract [Member] | D.R. Horton, Inc. [Member] | Notes Payable, Other Payables |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Related Party Deposit Liabilities | 0.0 |  | 0.0 |  | 0.7
Under Contract [Member] | D.R. Horton, Inc. [Member] | Cash |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Related Party Deposit Liabilities | $ 139.2 |  | $ 139.2 |  | $ 143.1
Right of First Offer [Member] | D.R. Horton, Inc. [Member] |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Number of Units in Real Estate Property | Lot | 19,100 |  | 19,100 |  | 18,200
Other Expense [Member] | D.R. Horton, Inc. [Member] |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Related Party Transaction, Amounts of Transaction | $ 18.3 | 14.9 | $ 56.1 | 43.1 |
Deposits [Member] | D.R. Horton, Inc. [Member] |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Related Party Transaction, Amounts of Transaction | $ 4.2 | $ 3.5 | $ 9.6 | $ 27.7 |
Land [Member] | D.R. Horton, Inc. [Member] |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Number of Lots Sold | Lot | 0 | 7 | 0 | 21 |
Revenue from Related Parties | $ 0.0 | $ 3.0 | $ 0.0 | $ 6.0 |
Real Estate [Member] | Residential Real Estate [Member] |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Revenue, Net (Deprecated 2018-01-31) | $ 303.0 | $ 307.4 | $ 1,100.0 | $ 894.5 |

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