Business Acquisition, Number of Finished Lots Acquired

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- Definition

Business Acquisition, Number of Homes Acquired

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- Definition

Business Acquisition, Number of Lots Under Option Contracts

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- Definition

Business Information

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No definition available.

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- Definition

Amount charged to advertising expense for the period, which are expenses incurred with the objective of increasing revenue for a specified brand, product or product line.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 720
-SubTopic 35
-Section 50
-Paragraph 1
-Subparagraph (b)
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Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 4
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A deposit made by a purchaser of real estate to evidence good faith. It is customary for a buyer to give the seller earnest money at the time a sales contract is signed. The earnest money generally is credited to the down payment at closing, which is applied at closing as a component of payment against the purchase price.

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- Definition

The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity.

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The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

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- Definition

The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
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- Definition

The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate.

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-Name Accounting Standards Codification
-Topic 740
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Summary of Significant Accounting Policies (Details) $ in Millions	3 Months Ended	12 Months Ended
	Dec. 31, 2020 USD ($) Home	Sep. 30, 2021 USD ($)	Sep. 30, 2020 USD ($)	Sep. 30, 2019 USD ($)
Business Information [Line Items]
Cash and cash equivalents		$ 3,210.4	$ 3,018.5
Payments to Acquire Businesses, Net of Cash Acquired	$ 23.0	24.5	9.7	$ 315.8
Business Acquisition, Number of Homes Acquired \| Home	90
Business Acquisition, Number of Finished Lots Acquired \| Home	95
Business Acquisition, Number of Lots Under Option Contracts \| Home	840
Advertising expense		36.1	41.7	$ 47.0
Unrecognized Tax Benefits that Would Impact Effective Tax Rate		$ 2.9	8.9
Forestar Group [Member]
Business Information [Line Items]
Noncontrolling Interest, Ownership Percentage by Parent		63.00%
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners		37.00%
Subsidiaries [Member]
Business Information [Line Items]
Cash and cash equivalents		$ 55.9	51.3
Variable Interest Entity, Not Primary Beneficiary [Member]
Business Information [Line Items]
Earnest Money Deposits		870.2	519.6
Accounts Receivable [Member]
Business Information [Line Items]
Cash and cash equivalents		$ 478.9	$ 237.6