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Operating and Reporting Segments (Homebuilding Financial Information) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Aug. 31, 2021	Aug. 31, 2020	Aug. 31, 2021	Aug. 31, 2020
Segment Reporting Information [Line Items]
Revenues	$ 6,941,403	$ 5,870,254	$ 18,697,116	$ 15,662,964
Operating earnings (loss)	1,924,495	951,674	4,576,449	2,222,101
East
Segment Reporting Information [Line Items]
Revenues	1,678,851	1,478,659	4,602,560	3,908,421
Operating earnings (loss)	356,895	244,189	928,805	586,104
Central
Segment Reporting Information [Line Items]
Revenues	1,268,817	1,063,621	3,294,842	2,839,415
Operating earnings (loss)	197,229	132,678	488,300	292,031
Texas
Segment Reporting Information [Line Items]
Revenues	827,229	747,934	2,270,566	1,933,918
Operating earnings (loss)	186,008	116,111	491,708	269,071
West
Segment Reporting Information [Line Items]
Revenues	2,775,556	2,212,211	7,338,906	5,920,804
Operating earnings (loss)	608,815	342,834	1,423,332	847,835
Other
Segment Reporting Information [Line Items]
Revenues	8,056	2,695	22,732	24,162
Operating earnings (loss)	(19,114)	(22,068)	(56,657)	(89,538)
Homebuilding
Segment Reporting Information [Line Items]
Revenues	6,558,509	5,505,120	17,529,606	14,626,720
Operating earnings (loss)	$ 1,329,833	$ 813,744	$ 3,275,488	$ 1,905,503

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