Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Cash flows from operating activities:
Net income	$ 602,703	$ 494,090	$ 474,338
Adjustments to reconcile net income to net cash from operating activities:
Deferred income tax expense	334,787	311,699	223,769
Write-down of land and deposits and pre-acquisition costs	19,357	11,467	11,168
Depreciation and amortization	54,007	46,222	39,864
Share-based compensation expense	22,228	24,752	29,292
Loss on debt retirements	657	0	8,584
Other, net	1,614	(4,865)	(2,566)
Increase (decrease) in cash due to:
Inventories	(897,092)	(917,298)	(337,939)
Residential mortgage loans available-for-sale	(99,527)	(104,609)	(53,734)
Other assets	(45,721)	(175,150)	(46,249)
Accounts payable, accrued and other liabilities	75,257	(23,898)	(38,646)
Net cash provided by (used in) operating activities	68,270	(337,590)	307,881
Cash flows from investing activities:
Capital expenditures	(39,295)	(45,440)	(48,790)
Investment in unconsolidated subsidiaries	(14,539)	(454)	(9)
Cash used for business acquisition	(430,458)	0	(82,419)
Other investing activities, net	13,100	11,330	8,605
Net cash used in investing activities	(471,192)	(34,564)	(122,613)
Cash flows from financing activities:
Proceeds from debt issuance	1,995,937	498,087	0
Repayments of debt	(986,919)	(239,193)	(250,631)
Borrowings under revolving credit facility	619,000	125,000	0
Repayments under revolving credit facility	(619,000)	(125,000)	0
Financial Services borrowings	63,744	127,636	34,577
Stock option exercises	5,845	10,535	15,627
Share repurchases	(603,206)	(442,738)	(253,019)
Dividends paid	(124,666)	(115,958)	(75,646)
Net cash provided by (used in) financing activities	350,735	(161,631)	(529,092)
Net increase (decrease)	(52,187)	(533,785)	(343,824)
Cash, cash equivalents, and restricted cash at beginning of period	775,435	1,309,220	1,653,044
Cash, cash equivalents, and restricted cash at end of period	723,248	775,435	1,309,220
Supplemental Cash Flow Information:
Interest paid (capitalized), net	(26,538)	(4,193)	(4,561)
Income taxes paid (refunded), net	$ 2,743	$ (5,654)	$ 1,030