Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Operating Activities:
Net income	$ 110,690	$ 36,760
Adjustments to reconcile net income to net cash provided by operating activities:
Stock-based compensation expense	9,926	4,440
Depreciation and amortization	7,003	5,152
Net (gain) loss on marketable equity securities	0	13,268
Deferred income tax expense	(1,348)	1,131
Net changes in assets and liabilities:
Trade and other receivables	(40,282)	(1,611)
Mortgage loans held-for-sale, net	1,767	63,100
Prepaids and other assets	(23,594)	(8,460)
Accounts payable and accrued and other liabilities	61,558	(1,131)
Net cash used in operating activities	(57,957)	(37,173)
Investing Activities:
Purchases of marketable securities	0	(9,782)
Sales of marketable securities	0	9,276
Purchases of property and equipment	(5,749)	(6,512)
Net cash used in investing activities	(5,749)	(7,018)
Financing Activities:
Payments on mortgage repurchase facility, net	15,092	(40,872)
Repayment of senior notes	0	(250,000)
Proceeds from issuance of senior notes	347,725	298,050
Dividend payments	(26,665)	(20,768)
Payments of deferred financing costs	(819)	0
Issuance of shares under stock-based compensation programs, net	1,009	8,194
Net cash provided by (used in) financing activities	336,342	(5,396)
Net increase (decrease) in cash, cash equivalents and restricted cash	272,636	(49,587)
Cash, cash equivalents and restricted cash:
Beginning of period	503,972	474,212
End of period	776,608	424,625
Reconciliation of cash, cash equivalents and restricted cash:
Total cash, cash equivalents and restricted cash	776,608	424,625
Homebuilding:
Reconciliation of cash, cash equivalents and restricted cash:
Cash and cash equivalents	678,194	386,704
Restricted cash	17,314	15,762
Financial Services:
Reconciliation of cash, cash equivalents and restricted cash:
Cash and cash equivalents	81,100	22,159
Housing Completed or Under Construction
Net changes in assets and liabilities:
Housing completed or under construction and land under development	(218,655)	(178,873)
Land and Land Under Development
Net changes in assets and liabilities:
Housing completed or under construction and land under development	$ 34,978	$ 29,051