Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
OPERATING ACTIVITIES
Net income	$ 286.7	$ 188.8
Adjustments to reconcile net income to net cash used in operating activities:
Depreciation and amortization	16.9	16.2
Amortization of discounts and fees	2.6	1.2
Stock-based compensation expense	18.1	13.6
Equity in earnings of unconsolidated entities	(0.6)	(2.3)
Distributions of earnings of unconsolidated entities	0.5	0.2
Deferred income taxes	3.9	126.3
Inventory and land option charges	8.0	3.7
Gain on sale of assets	(2.0)	(13.4)
Changes in operating assets and liabilities:
Increase in construction in progress and finished homes	(500.3)	(302.3)
Increase in residential land and lots – developed, under development, held for development and held for sale	(435.9)	(185.2)
(Increase) decrease in other assets	(34.0)	4.3
Decrease in mortgage loans held for sale	174.2	49.1
Increase in accounts payable, accrued expenses and other liabilities	88.8	24.8
Net cash (used in) provided by operating activities	(373.1)	(75.0)
INVESTING ACTIVITIES
Expenditures for property and equipment	(20.2)	(25.3)
Proceeds from sale of assets	10.4	24.8
Expenditures related to multi-family rental properties	(11.4)	(19.1)
Return of investment in unconsolidated entities	4.4	14.9
Net principal (increase) decrease of other mortgage loans and real estate owned	(0.6)	0.1
Payments related to business acquisitions, net of cash acquired	(293.0)	(156.4)
Net cash (used in) provided by investing activities	(310.4)	(161.0)
FINANCING ACTIVITIES
Proceeds from notes payable	578.3	1,113.9
Repayment of notes payable	(276.1)	(825.8)
Payments on mortgage repurchase facility, net	(163.8)	(32.6)
Proceeds from stock associated with certain employee benefit plans	8.6	14.6
Cash paid for shares withheld for taxes	(4.1)	(10.3)
Cash dividends paid	(56.0)	(47.0)
Repurchases of common stock	(140.6)	(25.4)
Distributions to noncontrolling interests, net	(0.5)	(1.7)
Net cash (used in) provided by financing activities	(54.2)	185.7
DECREASE IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH	(737.7)	(50.3)
Cash, cash equivalents and restricted cash at beginning of period	1,506.0	1,024.3
Cash, cash equivalents and restricted cash at end of period	768.3	974.0
Supplemental disclosures of non-cash activities:
Stock issued under employee incentive plans	9.4	13.9
Accrual for holdback payment related to acquisition	$ 27.7	$ 0.0