Consolidated Statements of Cash Flows (Unaudited) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022 USD ($)	Sep. 30, 2021 USD ($)	Sep. 30, 2022 USD ($)	Sep. 30, 2021 USD ($)
Operating Activities:
Net income	$ 144,400	$ 145,954	$ 482,363	$ 410,996
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Stock-based compensation expense			50,348	26,832
Depreciation and amortization			20,663	23,930
Inventory Impairments	28,415		29,075	0
Gain on sale of other assets			0	(2,014)
Amortization of discount of marketable debt securities			(1,082)	0
Loss on debt retirement	0	12,150	0	12,150
Deferred income tax benefit			(4,180)	(4,847)
Net changes in assets and liabilities:
Trade and other receivables			(19,321)	(55,529)
Mortgage loans held-for-sale, net			91,696	(16,365)
Prepaids and other assets			(8,050)	9,919
Accounts payable and accrued and other liabilities			12,506	88,273
Net cash provided by (used in) operating activities			343,953	(86,522)
Investing Activities:
Purchases of marketable securities			(291,126)	0
Proceeds from sale of other assets			0	2,014
Purchases of property and equipment			(21,429)	(23,028)
Net cash used in investing activities			(312,555)	(21,014)
Financing Activities:
Proceeds from (payments on) mortgage repurchase facility, net			(60,086)	13,404
Repayments of senior notes			0	(136,394)
Proceeds from issuance of senior notes			0	694,662
Dividend payments			(106,785)	(83,189)
Payments of deferred financing costs			0	(1,720)
Issuance of shares under stock-based compensation programs, net			(11,545)	(15,553)
Net cash provided by (used in) financing activities			(178,416)	471,210
Net increase (decrease) in cash, cash equivalents and restricted cash			(147,018)	363,674
Cash, cash equivalents and restricted cash:
Beginning of period			603,459	503,972
End of period	456,441	867,646	456,441	867,646
Reconciliation of cash, cash equivalents and restricted cash:
Total cash, cash equivalents and restricted cash	456,441	867,646	456,441	867,646
Homebuilding:
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Inventory Impairments	28,415	0	29,075	0
Reconciliation of cash, cash equivalents and restricted cash:
Cash and cash equivalents	417,298	761,715	417,298	761,715
Restricted cash	4,657	12,047	4,657	12,047
Financial Services:
Reconciliation of cash, cash equivalents and restricted cash:
Cash and cash equivalents	$ 34,486	$ 93,884	34,486	93,884
Housing Completed or Under Construction
Net changes in assets and liabilities:
Housing completed or under construction and land under development			(319,083)	(461,105)
Land and Land Under Development
Net changes in assets and liabilities:
Housing completed or under construction and land under development			$ 9,018	$ (118,762)