Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
OPERATING ACTIVITIES
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	$ 40.5	$ 22.1
Adjustments:
Depreciation and amortization	0.8	0.8
Deferred income taxes	(0.2)	2.2
Equity in earnings of unconsolidated ventures	(1.1)	(0.2)
Stock-based compensation expense	0.4	0.3
Production Related Impairments or Charges	0.6	0.4
Gain on sale of assets	(0.5)	0.0
Changes in operating assets and liabilities:
Increase in real estate	(55.5)	(218.6)
Decrease (increase) in other assets	2.6	(2.6)
Increase (decrease) in accounts payable and other accrued liabilities	(12.2)	1.0
Increase in accrued development costs	12.2	12.6
(Decrease) increase in earnest money deposits on sales contracts	(6.2)	21.1
Decrease in income taxes receivable	0.0	4.2
Net cash provided by (used in) operating activities	5.8	(158.7)
INVESTING ACTIVITIES
Expenditures for property, equipment, software and other	(1.5)	(0.1)
Return of investment in unconsolidated ventures	1.5	2.1
Proceeds from sale of assets	3.2	0.0
Net cash provided by investing activities	3.2	2.0
FINANCING ACTIVITIES
Distributions to noncontrolling interests, net	0.0	(0.1)
Cash paid for shares withheld for taxes	(0.1)	(0.1)
Net cash used in financing activities	(0.1)	(0.2)
Net increase (decrease) in cash and cash equivalents	8.9	(156.9)
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	162.5	237.4
SUPPLEMENTAL DISCLOSURES OF NON-CASH ACTIVITIES
Note payable issued for real estate	0.0	12.5
Issuance of common stock not settled	$ 1.7	$ 0.0