Interest (Details) - USD ($) $ in Thousands	12 Months Ended
Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2023
Real Estate Inventory, Capitalized Interest Costs [Roll Forward]
Capitalized interest in inventory, beginning of period	$ 124,182	$ 112,580	$ 109,088
Interest incurred	86,529	79,835	71,981
Capitalized interest impaired	(1,462)	0	0
Capitalized interest amortized to home construction and land sales expenses	(77,404)	(68,233)	(68,489)
Capitalized interest in inventory, end of period	$ 131,845	$ 124,182	$ 112,580

Real Estate Inventory, Capitalized Interest Costs, Impaired

No definition available.

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Data Type:	xbrli:monetaryItemType
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- Definition

Carrying amount as of the balance sheet date of interest costs that were capitalized to properties under development during the land development and construction period of a project, and which are included in inventory.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 835
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483013/835-20-50-1

+ Details

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Period Type:	instant

- Definition

Amount of interest cost charged to cost of sales that had been previously capitalized to inventory.

+ References

+ Details

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- Definition

The amount of interest capitalized to an operative builder's inventory during the period.

+ References

+ Details

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

+ Details

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