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v3.22.2

Notes Payable (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | ---
Jun. 30, 2022 | Jun. 30, 2022 | Mar. 01, 2022 | Sep. 30, 2021 | Jun. 30, 2020 | Sep. 30, 2019
Estimate of Fair Value Measurement [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Notes payable, Fair value | $ 5,700.0 | $ 5,700.0 |  | $ 5,500.0 |  |
Letters of Credit Outstanding, Amount | 244.7 | 244.7 |  |  |  |
Notes payable | 5,975.2 | 5,975.2 |  | 5,412.4 |  |
Fair Value, Inputs, Level 2 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Notes payable, Fair value | 3,500.0 | 3,500.0 |  | 3,900.0 |  |
Fair Value, Inputs, Level 3 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Notes payable, Fair value | 2,200.0 | 2,200.0 |  | 1,600.0 |  |
Intersegment Eliminations [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Notes payable | 0.0 | 0.0 |  | (0.7) |  |
Forestar Group [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Unamortized Debt Issuance Expense | 6.9 | 6.9 |  | 8.0 |  |
Notes payable | 705.6 | 705.6 |  | 704.5 |  |
Financial Services [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Line of Credit Facility, Current Borrowing Capacity | 1,600.0 | 1,600.0 |  |  |  |
Participating Mortgage Loans, Mortgage Obligations, Amount | 2,000.0 | $ 2,000.0 |  |  |  |
Advance Pay Downs on Mortgage Repurchase Facility | $ 632.0 |  |  |  |  |
Assets Sold under Agreements to Repurchase, Interest Rate | 3.30% | 3.30% |  |  |  |
Notes payable | $ 1,405.7 | $ 1,405.7 |  | 1,494.6 |  |
Deposit Liabilities, Collateral Issued, Financial Instruments | 2,100.0 | 2,100.0 |  |  |  |
Financial Services [Member] | Maximum [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Line of Credit Facility, Current Borrowing Capacity | 2,100.0 | 2,100.0 |  |  |  |
Forestar Group [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Line of Credit Facility, Current Borrowing Capacity | 410.0 | 410.0 |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity | $ 600.0 | $ 600.0 |  |  |  |
Letters of credit, sublimit borrowing capacity, as a percentage | 50.00% | 50.00% |  |  |  |
Revolving credit facility | $ 0.0 | $ 0.0 |  | 0.0 |  |
Letters of Credit Outstanding, Amount | 56.0 | 56.0 |  |  |  |
Line of Credit Facility, Remaining Borrowing Capacity | 354.0 | 354.0 |  |  |  |
Authorized Repurchase Of Debt Securities |  |  |  |  | $ 30.0 |
Debt Repurchase Authorization Remaining | 30.0 | 30.0 |  |  |  |
Letter of Credit, Maximum Borrowing Capacity (in dollars) | 100.0 | 100.0 |  |  |  |
Notes payable | 705.6 | 705.6 |  | 704.5 |  |
Home Building Consolidated |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Unamortized Debt Issuance Expense | 13.3 | 13.3 |  | 16.5 |  |
Line of Credit Facility, Current Borrowing Capacity | 2,190.0 | 2,190.0 |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity | $ 3,000.0 | $ 3,000.0 |  |  |  |
Letters of credit, sublimit borrowing capacity, as a percentage | 100.00% | 100.00% |  |  |  |
Revolving credit facility | $ 400.0 | $ 400.0 |  | 0.0 |  |
Letters of Credit Outstanding, Amount | 188.7 | 188.7 |  |  |  |
Line of Credit Facility, Remaining Borrowing Capacity | 1,600.0 | 1,600.0 |  |  |  |
Authorized Repurchase Of Debt Securities |  |  |  |  |  | $ 500.0
Debt Repurchase Authorization Remaining | 500.0 | 500.0 |  |  |  |
Notes payable | $ 3,688.9 | 3,688.9 |  | 3,213.3 |  |
Proceeds from Lines of Credit |  | 2,500.0 |  |  |  |
Repayments of Lines of Credit |  | $ 2,100.0 |  |  |  |
Line of Credit Facility, Interest Rate at Period End | 4.80% | 4.80% |  |  |  |
Rental |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Line of Credit Facility, Current Borrowing Capacity | $ 649.6 | $ 649.6 | $ 625.0 |  |  |
Line of Credit Facility, Maximum Borrowing Capacity | $ 1,250.0 | $ 1,250.0 |  |  |  |
Letters of credit, sublimit borrowing capacity, as a percentage | 50.00% | 50.00% |  |  |  |
Revolving credit facility | $ 175.0 | $ 175.0 |  | 0.0 |  |
Letters of Credit Outstanding, Amount | 0.0 | 0.0 |  |  |  |
Line of Credit Facility, Remaining Borrowing Capacity | 474.6 | 474.6 |  |  |  |
Letter of Credit, Maximum Borrowing Capacity (in dollars) | 100.0 | 100.0 |  |  |  |
Notes payable | $ 175.0 | $ 175.0 |  | 0.0 |  |
Line of Credit Facility, Interest Rate at Period End | 3.10% | 3.10% |  |  |  |
Rental | Maximum [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Line of Credit Facility, Current Borrowing Capacity | $ 750.0 | $ 750.0 |  |  |  |
4.375% senior notes due 2022 [Member] | Home Building Consolidated |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Notes payable | $ 349.9 | $ 349.9 |  | 349.6 |  |
Debt Instrument, Interest Rate, Stated Percentage | 4.375% | 4.375% |  |  |  |
4.75% senior notes due 2023 [Member] | Home Building Consolidated |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Notes payable | $ 299.8 | $ 299.8 |  | 299.5 |  |
Debt Instrument, Interest Rate, Stated Percentage | 4.75% | 4.75% |  |  |  |
5.75% senior notes due 2023 [Member] | Home Building Consolidated |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Notes payable | $ 399.5 | $ 399.5 |  | 399.1 |  |
Debt Instrument, Interest Rate, Stated Percentage | 5.75% | 5.75% |  |  |  |
SeniorNoteFortyTwo [Member] | Home Building Consolidated |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Notes payable | $ 498.0 | $ 498.0 |  | 497.3 |  |
Debt Instrument, Interest Rate, Stated Percentage | 2.50% | 2.50% |  |  |  |
SeniorNoteFortyFour | Home Building Consolidated |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Notes payable | $ 496.9 | $ 496.9 |  | 496.2 |  |
Debt Instrument, Interest Rate, Stated Percentage | 2.60% | 2.60% |  |  |  |
Senior Note Forty Six | Home Building Consolidated |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Notes payable | $ 595.2 | $ 595.2 |  | 594.5 |  |
Debt Instrument, Interest Rate, Stated Percentage | 1.30% | 1.30% |  |  |  |
Senior Note Forty Five | Home Building Consolidated |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Notes payable | $ 495.5 | $ 495.5 |  | 494.9 |  |
Debt Instrument, Interest Rate, Stated Percentage | 1.40% | 1.40% |  |  |  |
Senior Note Member Forty Six | Forestar Group [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Notes payable | $ 396.2 | $ 396.2 |  | 395.5 |  |
Debt Instrument, Interest Rate, Stated Percentage | 3.85% | 3.85% |  |  |  |
Senior Note Member Forty Three | Forestar Group [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Notes payable | $ 296.9 | $ 296.9 |  | 296.5 |  |
Debt Instrument, Interest Rate, Stated Percentage | 5.00% | 5.00% |  |  |  |
Secured Debt [Member] | Forestar Group [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Notes payable | $ 12.5 | $ 12.5 |  | 12.5 |  |
Secured Debt [Member] | Home Building Consolidated |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Notes payable | $ 154.1 | $ 154.1 |  | $ 82.2 |  |

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