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v3.23.2

Notes Payable (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended |  |  |
--- | --- | --- | --- | --- | ---
Sep. 30, 2023 | Mar. 31, 2023 | Jun. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2020 | Sep. 30, 2019
Estimate of Fair Value Measurement [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Notes payable, Fair value |  |  | $ 5,900.0 | $ 5,700.0 |  |
Letters of Credit Outstanding, Amount |  |  | 253.2 |  |  |
Notes payable |  |  | 6,105.3 | 6,066.9 |  |
Fair Value, Inputs, Level 2 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Notes payable, Fair value |  |  | 3,000.0 | 3,100.0 |  |
Fair Value, Inputs, Level 3 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Notes payable, Fair value |  |  | 2,900.0 | 2,600.0 |  |
Intersegment Eliminations [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Notes payable |  |  | 0.0 | 0.0 |  |
Forestar Group [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Unamortized Debt Issuance Expense |  |  | 5.3 | 6.5 |  |
Notes payable |  |  | 707.2 | 706.0 |  |
Financial Services [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Notes payable |  |  | 1,685.6 | 1,618.3 |  |
Forestar Group [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Line of Credit Facility, Current Borrowing Capacity |  |  | 410.0 |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  |  | $ 600.0 |  |  |
Letters of credit, sublimit borrowing capacity, as a percentage |  |  | 50.00% |  |  |
Revolving credit facility |  |  | $ 0.0 | 0.0 |  |
Letters of Credit Outstanding, Amount |  |  | 29.8 |  |  |
Line of Credit Facility, Remaining Borrowing Capacity |  |  | 380.2 |  |  |
Authorized Repurchase Of Debt Securities |  |  |  |  | $ 30.0 |
Debt Repurchase Authorization Remaining |  |  | 30.0 |  |  |
Letter of Credit, Maximum Borrowing Capacity (in dollars) |  |  | 100.0 |  |  |
Notes payable |  |  | 707.2 | 706.0 |  |
Home Building Consolidated |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Unamortized Debt Issuance Expense |  |  | 9.2 | 12.2 |  |
Line of Credit Facility, Current Borrowing Capacity |  |  | 2,190.0 |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  |  | $ 3,000.0 |  |  |
Letters of credit, sublimit borrowing capacity, as a percentage |  |  | 100.00% |  |  |
Revolving credit facility |  |  | $ 0.0 | 0.0 |  |
Letters of Credit Outstanding, Amount |  |  | 223.4 |  |  |
Line of Credit Facility, Remaining Borrowing Capacity |  |  | 1,970.0 |  |  |
Authorized Repurchase Of Debt Securities |  |  |  |  |  | $ 500.0
Debt Repurchase Authorization Remaining |  |  | 500.0 |  |  |
Notes payable |  |  | 2,712.5 | 2,942.6 |  |
Rental |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Line of Credit Facility, Current Borrowing Capacity |  |  | 1,025.0 |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  |  | $ 1,250.0 |  |  |
Letters of credit, sublimit borrowing capacity, as a percentage |  |  | 50.00% |  |  |
Revolving credit facility |  |  | $ 1,000.0 | 800.0 |  |
Line of Credit Facility, Remaining Borrowing Capacity |  |  | 25.0 |  |  |
Letter of Credit, Maximum Borrowing Capacity (in dollars) |  |  | 100.0 |  |  |
Notes payable |  |  | $ 1,000.0 | 800.0 |  |
Line of Credit Facility, Interest Rate at Period End |  |  | 7.50% |  |  |
Proceeds from Lines of Credit |  |  | $ 575.0 |  |  |
Repayments of Lines of Credit |  |  | $ 375.0 |  |  |
4.75% senior notes due 2023 [Member] | Home Building Consolidated |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  | 4.75% |  |  |
Maturities of Senior Debt |  | $ 300.0 |  |  |  |
Notes payable |  |  | $ 0.0 | 299.9 |  |
5.75% senior notes due 2023 [Member] | Home Building Consolidated |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  | 5.75% |  |  |
Notes payable |  |  | $ 400.0 | 399.6 |  |
5.75% senior notes due 2023 [Member] | Home Building Consolidated | Subsequent Event [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Maturities of Senior Debt | $ 400.0 |  |  |  |  |
Debt Instrument, Redemption Price, Percentage | 100.00% |  |  |  |  |
SeniorNoteFortyTwo [Member] | Home Building Consolidated |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  | 2.50% |  |  |
Notes payable |  |  | $ 498.8 | 498.2 |  |
SeniorNoteFortyFour | Home Building Consolidated |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  | 2.60% |  |  |
Notes payable |  |  | $ 497.8 | 497.1 |  |
Senior Note Forty Six | Home Building Consolidated |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  | 1.30% |  |  |
Notes payable |  |  | $ 596.3 | 595.5 |  |
Senior Note Forty Five | Home Building Consolidated |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  | 1.40% |  |  |
Notes payable |  |  | $ 496.3 | 495.7 |  |
Senior Note Member Forty Six | Forestar Group [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  | 3.85% |  |  |
Notes payable |  |  | $ 397.2 | 396.5 |  |
Senior Note Member Forty Three | Forestar Group [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  | 5.00% |  |  |
Notes payable |  |  | $ 297.5 | 297.0 |  |
Secured Debt [Member] | Forestar Group [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Notes payable |  |  | 12.5 | 12.5 |  |
Secured Debt [Member] | Home Building Consolidated |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Notes payable |  |  | 223.3 | 156.6 |  |
Commitments to Extend Credit | Financial Services [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Line of Credit Facility, Current Borrowing Capacity |  |  | 2,000.0 |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  |  | 2,300.0 |  |  |
Deposit Liabilities, Collateral Issued, Financial Instruments |  |  | 2,030.0 |  |  |
Participating Mortgage Loans, Mortgage Obligations, Amount |  |  | $ 1,990.0 |  |  |
Assets Sold under Agreements to Repurchase, Interest Rate |  |  | 6.70% |  |  |
Notes payable |  |  | $ 1,385.9 | 1,618.3 |  |
Warehouse Agreement Borrowings | Financial Services [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Line of Credit Facility, Current Borrowing Capacity |  |  | 300.0 |  |  |
Deposit Liabilities, Collateral Issued, Financial Instruments |  |  | 376.5 |  |  |
Participating Mortgage Loans, Mortgage Obligations, Amount |  |  | $ 360.0 |  |  |
Assets Sold under Agreements to Repurchase, Interest Rate |  |  | 6.50% |  |  |
Notes payable |  |  | $ 299.7 | $ 0.0 |  |

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