The total repurchase amount authorized by an entity's Board of Directors under a debt repurchase plan.

No definition available.

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The remaining repurchase amount authorized by an entity's Board of Directors under a debt repurchase plan.

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No definition available.

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- Definition

Maximum borrowing capacity of letter of credit.

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No definition available.

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- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
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-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

+ References

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- Definition

Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 50
-Paragraph 3
-Subparagraph e
-URI http://asc.fasb.org/extlink&oid=75038535&loc=d3e64711-112823

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- Definition

The cash outflow for the extinguishment of long-term borrowing, with the highest claim on the assets of the entity in case of bankruptcy or liquidation, before its maturity.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Subparagraph (b)
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- Definition

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

+ References

No definition available.

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- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition

Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

+ References

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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- Definition

Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-SubTopic 10
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-Subparagraph (SX 210.12-04.(a))
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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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-Subparagraph (SX 210.12-04.(a))
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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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No definition available.

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Including the current and noncurrent portions, aggregate carrying amount of all types of notes payable, as of the balance sheet date, with initial maturities beyond one year or beyond the normal operating cycle, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
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The cash inflow from a contractual arrangement with the lender, including letter of credit, standby letter of credit and revolving credit arrangements, under which borrowings can be made up to a specific amount at any point in time with maturities due beyond one year or the operating cycle, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3255-108585

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The cash outflow for the settlement of obligation drawn from a contractual arrangement with the lender, including letter of credit, standby letter of credit and revolving credit arrangements, under which borrowings can be made up to a specific amount at any point in time with maturities due beyond one year or the operating cycle, if longer.

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- Definition

The remaining balance of debt issuance expenses that were capitalized and are being amortized against income over the lives of the respective bond issues. This does not include the amounts capitalized as part of the cost of the utility plant or asset.

+ References

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Notes Payable - Homebuilding Textuals (Details) - USD ($)		3 Months Ended	12 Months Ended
	Aug. 01, 2018	Dec. 31, 2017	Sep. 30, 2018	Jun. 30, 2018	Oct. 05, 2017	Sep. 30, 2017
Debt Instrument [Line Items]
Unamortized Debt Issuance Expense			$ 8,500,000			$ 9,500,000
Notes payable			3,203,500,000			2,871,600,000
Maturities of Long-term Debt [Abstract]
Maturities of notes payable in fiscal 2019			1,100,000,000
Maturities of notes payable in fiscal 2020			618,900,000
Maturities of notes payable in fiscal 2021			400,000,000
Maturities of notes payable in fiscal 2022			350,000,000
Maturities of notes payable in fiscal 2023			700,000,000
Letters of credit, amount outstanding			128,500,000
Homebuilding [Member]
Debt Instrument [Line Items]
Notes payable			2,445,900,000			2,451,600,000
Maturities of Long-term Debt [Abstract]
Line of credit, current borrowing capacity			1,325,000,000	$ 1,275,000,000
Line of credit, maximum borrowing capacity			$ 1,900,000,000
Letter of Credit, Maximum Borrowing Capacity			50.00%
Proceeds from Lines of Credit			$ 1,800,000,000
Repayments of Lines of Credit			1,800,000,000
Line of credit, amount outstanding			0			0
Authorized repurchase of debt securities	$ 500,000,000
Debt repurchase program, remaining authorized repurchase amount			500,000,000
Homebuilding [Member] \| Revolving credit facility [Member]
Maturities of Long-term Debt [Abstract]
Letters of credit, amount outstanding			107,200,000
Forestar Group [Member]
Debt Instrument [Line Items]
Notes payable			111,700,000
Maturities of Long-term Debt [Abstract]
Line of credit, current borrowing capacity			380,000,000
Line of credit, maximum borrowing capacity			$ 570,000,000
Letter of Credit, Maximum Borrowing Capacity			50.00%
Line of credit, amount outstanding			$ 0
Forestar Group [Member] \| Revolving credit facility [Member]
Maturities of Long-term Debt [Abstract]
Letters of credit, amount outstanding			$ 4,500,000
Senior Note Member Forty [Member] \| Forestar Group [Member]
Debt Instrument [Line Items]
Senior notes, stated interest rate			3.75%		3.75%
Maturities of Long-term Debt [Abstract]
Debt Instrument, Face Amount					$ 120,000,000
Early Repayment of Senior Debt		$ 1,100,000
Senior Note Member Thirty-One [Member] \| Homebuilding [Member]
Debt Instrument [Line Items]
Senior notes, stated interest rate		2.55%	2.55%
Notes payable			$ 397,900,000			0
Maturities of Long-term Debt [Abstract]
Debt Instrument, Face Amount		$ 400,000,000	$ 400,000,000
Debt Instrument, Maturity Date			Dec. 01, 2020
Senior Notes Subject to Repurchase Upon Change of Control and Ratings Downgrade [Member] \| Homebuilding [Member]
Maturities of Long-term Debt [Abstract]
Debt Instrument, Redemption Price, Percentage			101.00%
Senior Note Twenty Six [Member] \| Homebuilding [Member]
Debt Instrument [Line Items]
Senior notes, stated interest rate		3.625%	3.625%
Notes payable			$ 0			$ 399,700,000
Maturities of Long-term Debt [Abstract]
Early Repayment of Senior Debt		$ 400,000,000
Segment Reconciling Items [Member]
Debt Instrument [Line Items]
Notes payable			$ 8,200,000