Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
OPERATING ACTIVITIES
Net income	$ 432.5	$ 286.7
Adjustments to reconcile net income to net cash used in operating activities:
Depreciation and amortization	19.0	16.9
Amortization of discounts and fees	3.1	2.6
Stock-based compensation expense	16.6	18.1
Equity in earnings of unconsolidated entities	(0.5)	(0.6)
Distributions of earnings of unconsolidated entities	0.0	0.5
Deferred income taxes	7.2	3.9
Inventory and land option charges	3.8	8.0
Gain on sale of assets	(31.1)	(2.0)
Changes in operating assets and liabilities:
Increase in construction in progress and finished homes	(334.8)	(500.3)
Increase in residential land and lots – developed, under development, held for development and held for sale	(373.1)	(435.9)
Decrease (increase) in other assets	2.0	(34.0)
Net decrease in mortgage loans held for sale	46.9	174.2
Increase in accounts payable, accrued expenses and other liabilities	94.6	88.8
Net cash (used in) provided by operating activities	(113.8)	(373.1)
INVESTING ACTIVITIES
Expenditures for property and equipment	(21.6)	(20.2)
Proceeds from sale of assets	62.8	10.4
Expenditures related to rental properties	(59.6)	(11.4)
Return of investment in unconsolidated entities	1.9	4.4
Net principal increase of other mortgage loans and real estate owned	(0.6)	(0.6)
Payments related to business acquisitions	(0.7)	(293.0)
Net cash (used in) provided by investing activities	(17.8)	(310.4)
FINANCING ACTIVITIES
Proceeds from notes payable	495.7	578.3
Repayment of notes payable	0.0	(276.1)
Payments on mortgage repurchase facility, net	(38.6)	(163.8)
Proceeds from stock associated with certain employee benefit plans	4.1	8.6
Cash paid for shares withheld for taxes	(17.3)	(4.1)
Cash dividends paid	(64.6)	(56.0)
Repurchases of common stock	(163.1)	(140.6)
Distributions to noncontrolling interests, net	(0.4)	(0.5)
Proceeds from (Payments for) Other Financing Activities	(2.3)	0.0
Net cash (used in) provided by financing activities	213.5	(54.2)
Net increase (decrease) in cash, cash equivalents and restricted cash	81.9	(737.7)
Cash, cash equivalents and restricted cash at beginning of period	1,514.0	1,506.0
Cash, cash equivalents and restricted cash at end of period	1,595.9	768.3
SUPPLEMENTAL DISCLOSURES OF NON-CASH ACTIVITIES:
Stock issued under employee incentive plans	31.8	9.4
Capital Expenditures Incurred but Not yet Paid	7.7	15.2
Accrual for holdback payment related to acquisition	$ 9.5	$ 27.7