Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands		3 Months Ended		9 Months Ended
		Aug. 31, 2017	Aug. 31, 2016	Aug. 31, 2017	Aug. 31, 2016
Total revenues		$ 1,144,001	$ 913,283	$ 2,965,391	$ 2,402,704
Homebuilding:
Revenues		1,140,787	910,111	2,957,105	2,394,315
Construction and land costs		(955,001)	(760,490)	(2,499,677)	(2,018,022)
Selling, general and administrative expenses		(109,095)	(98,144)	(305,901)	(279,886)
Operating income		76,691	51,477	151,527	96,407
Interest income		347	109	747	395
Interest expense	[1]	0	0	(6,307)	(5,667)
Equity in income (loss) of unconsolidated joint ventures				921	(2,616)
Total pretax income (loss)		79,208	53,463	152,649	94,287
Financial services:
Revenues		3,214	3,172	8,286	8,389
Expenses		(890)	(891)	(2,525)	(2,621)
Income tax expense	[2]	(29,000)	(14,100)	(56,400)	(26,200)
Net income		$ 50,208	$ 39,363	$ 96,249	$ 68,087
Earnings Per Share, Basic (in dollars per share)		$ 0.58	$ 0.46	$ 1.12	$ 0.79
Earnings Per Share, Diluted (in dollars per share)		$ 0.51	$ 0.42	$ 1.00	$ 0.72
Weighted average shares outstanding — basic (in shares)		85,974	84,457	85,517	85,952
Weighted average shares outstanding — diluted (in shares)		98,912	95,203	97,624	96,437
Cash dividends declared per common share (in dollars per share)		$ 0.0250	$ 0.0250	$ 0.075	$ 0.075
Homebuilding [Member]
Homebuilding:
Equity in income (loss) of unconsolidated joint ventures		$ (814)	$ (536)	$ (679)	$ (1,964)
Total pretax income (loss)		76,224	51,050	145,288	89,171
Financial services [Member]
Homebuilding:
Operating income		2,324	2,281	5,761	5,768
Equity in income (loss) of unconsolidated joint ventures		660	132	1,600	(652)
Total pretax income (loss)		$ 2,984	$ 2,413	$ 7,361	$ 5,116

[1] Interest incurred and interest expensed for the nine months ended August 31, 2017 included a charge of $5.7 million for the early extinguishment of debt

[2] (a) Amounts reflect the favorable net impact of federal energy tax credits we earned from building energy-efficient homes through December 31, 2016. The net impact of these tax credits was $2.6 million and $6.7 million for the three months ended August 31, 2017 and 2016, respectively, and $3.8 million and $10.4 million for the nine months ended August 31, 2017 and 2016, respectively.