Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Cash flows from operating activities:
Net income	$ 1,946,320	$ 1,406,839	$ 1,016,700
Adjustments to reconcile net income to net cash from operating activities:
Deferred income tax expense	59,168	137,598	105,438
Land-related charges	12,302	20,305	27,101
Loss on debt retirement	61,469	0	4,927
Goodwill impairment	0	20,190	0
Depreciation and amortization	69,953	66,081	53,999
Share-based compensation expense	36,745	32,843	28,368
Other, net	(13,504)	(1,112)	1,155
Increase (decrease) in cash due to:
Inventories	(1,266,398)	2,988	(237,741)
Residential mortgage loans available-for-sale	(382,813)	(56,732)	(48,261)
Other assets	(159,906)	(46,307)	(16,668)
Accounts payable, accrued and other liabilities	640,685	201,649	140,984
Net cash provided by operating activities	1,004,021	1,784,342	1,076,002
Cash flows from investing activities:
Capital expenditures	(72,781)	(58,354)	(58,119)
Investments in unconsolidated entities	(101,591)	(753)	(9,515)
Distributions of capital from unconsolidated entities	53,927	27,939	214
Business acquisitions	(10,400)	(83,251)	(163,724)
Other investing activities, net	6,713	6,472	6,458
Net cash used in investing activities	(124,132)	(107,947)	(224,686)
Cash flows from financing activities:
Repayments of notes payable	(836,893)	(65,267)	(309,985)
Borrowings under revolving credit facility	0	700,000	0
Repayments under revolving credit facility	0	(700,000)	0
Financial Services borrowings (repayments), net	214,302	85,248	(21,841)
Stock option exercises	11	111	6,399
Share repurchases	(897,303)	(170,676)	(274,333)
Cash paid for shares withheld for taxes	(10,842)	(14,853)	(11,450)
Dividends paid	(147,834)	(130,179)	(122,350)
Net cash used in financing activities	(1,678,559)	(295,616)	(733,560)
Net increase (decrease)	(798,670)	1,380,779	117,756
Cash, cash equivalents, and restricted cash at beginning of period	2,632,235	1,251,456	1,133,700
Cash, cash equivalents, and restricted cash at end of period	1,833,565	2,632,235	1,251,456
Supplemental Cash Flow Information:
Interest paid (capitalized), net	10,856	3,057	5,605
Income taxes paid, net	$ 457,406	$ 264,248	$ 137,119