Operating and Reporting Segments (Homebuilding Financial Information) (Details) - USD ($) $ in Thousands	3 Months Ended
	Feb. 28, 2021	Feb. 29, 2020
Segment Reporting Information [Line Items]
Revenues	$ 5,325,468	$ 4,505,337
Operating earnings (loss)	1,449,859	510,399
East
Segment Reporting Information [Line Items]
Revenues	1,355,942	1,152,332
Operating earnings (loss)	262,083	148,754
Central
Segment Reporting Information [Line Items]
Revenues	928,442	789,510
Operating earnings (loss)	132,023	55,723
Texas
Segment Reporting Information [Line Items]
Revenues	644,078	473,228
Operating earnings (loss)	129,643	53,073
West
Segment Reporting Information [Line Items]
Revenues	2,009,579	1,748,769
Operating earnings (loss)	321,706	224,907
Other
Segment Reporting Information [Line Items]
Revenues	5,015	8,277
Operating earnings (loss)	(12,275)	(22,059)
Homebuilding
Segment Reporting Information [Line Items]
Revenues	4,943,056	4,172,116
Operating earnings (loss)	$ 833,180	$ 460,398