Summary of Significant Accounting Policies (Tables)

12 Months Ended

Sep. 30, 2020

Accounting Policies [Abstract]

Goodwill by reporting segment

The Company’s goodwill balances by reporting segment were as follows:

	September 30,
	2020		2019
	(In millions)
East	$	26.4	$	26.4
Midwest	49.7		49.7
Southeast	40.1		40.1
South Central	15.9		15.9
Southwest	—		—
West	2.2		2.2
Forestar	29.2		29.2
Total goodwill	$	163.5	$	163.5