Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Cash flows from operating activities:
Net income	$ 91,518	$ 83,300
Adjustments to reconcile net income to net cash from operating activities:
Deferred income tax expense	39,226	50,026
Depreciation and amortization	13,209	13,113
Share-based compensation expense	14,161	9,355
Other, net	4,090	4,447
Increase (decrease) in cash due to:
Inventories	(267,014)	(381,910)
Residential mortgage loans available-for-sale	194,117	151,886
Other assets	21,858	(25,133)
Accounts payable, accrued and other liabilities	(71,362)	31,999
Net cash provided by (used in) operating activities	39,803	(62,917)
Cash flows from investing activities:
Capital expenditures	(9,996)	(9,460)
Investment in unconsolidated subsidiaries	(14,802)	(13,534)
Cash used for business acquisition	0	(430,011)
Other investing activities, net	1,423	1,253
Net cash used in investing activities	(23,375)	(451,752)
Cash flows from financing activities:
Proceeds from debt issuance	0	991,575
Repayments of debt	(1,067)	(702)
Borrowings under revolving credit facility	0	220,000
Repayments under revolving credit facility	0	(220,000)
Financial Services borrowings (repayments)	(191,240)	(149,263)
Stock option exercises	11,118	52
Share repurchases	(105,522)	(52,745)
Dividends paid	(29,102)	(31,568)
Net cash provided by (used in) financing activities	(315,813)	757,349
Net increase (decrease)	(299,385)	242,680
Cash, cash equivalents, and restricted cash at beginning of period	723,248	775,435
Cash, cash equivalents, and restricted cash at end of period	423,863	1,018,115
Supplemental Cash Flow Information:
Interest paid (capitalized), net	12,830	(23,124)
Income taxes paid (refunded), net	$ 1,043	$ 1,212