Segment Information (Segment Financial Information) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Aug. 31, 2022	Aug. 31, 2021	Aug. 31, 2022	Aug. 31, 2021	Nov. 30, 2021
Segment Reporting Information [Line Items]
Inventory impairments and land option contract abandonments			$ 9,371	$ 11,222
Revenues:
Total revenues	$ 1,844,895	$ 1,467,102	4,963,746	4,049,732
Pretax income (loss):
Pretax income (loss)	326,229	174,197	787,156	471,412
Inventories: Homes under Construction	2,696,548		2,696,548		$ 2,103,038
Inventories: Land under development	3,040,154		3,040,154		2,699,791
Inventories: Land held for future development or sale	53,300		53,300		45,200
Inventories	5,736,702		5,736,702		4,802,829
Assets
Total assets	6,730,589		6,730,589		5,835,918
Land Option Contract Abandonment [Member]
Pretax income (loss):
Land option contract abandonment charges	5,900	400	6,800	1,300
Home Building [Member]
Segment Reporting Information [Line Items]
Inventory impairments and land option contract abandonments	8,464	6,701	9,371	11,222
Revenues:
Total revenues	1,838,888	1,461,896	4,947,868	4,035,939
Pretax income (loss):
Pretax income (loss)	321,604	164,816	755,414	442,883
Inventories	5,736,702		5,736,702		4,802,829
Assets
Total assets	6,674,067		6,674,067		5,791,716
Home Building [Member] | West Coast [Member]
Segment Reporting Information [Line Items]
Inventory impairments and land option contract abandonments	4,465	6,458	4,622	10,376
Revenues:
Total revenues	829,405	663,563	2,249,496	1,803,769
Pretax income (loss):
Pretax income (loss)	171,041	93,247	418,593	228,508
Assets
Total assets	2,755,936		2,755,936		2,520,374
Home Building [Member] | Southwest [Member]
Segment Reporting Information [Line Items]
Inventory impairments and land option contract abandonments	432	243	596	536
Revenues:
Total revenues	321,808	234,933	822,499	680,679
Pretax income (loss):
Pretax income (loss)	77,368	46,021	177,908	127,985
Assets
Total assets	1,074,914		1,074,914		938,300
Home Building [Member] | Central [Member]
Segment Reporting Information [Line Items]
Inventory impairments and land option contract abandonments	1,311	0	1,897	70
Revenues:
Total revenues	443,581	384,532	1,231,949	1,084,795
Pretax income (loss):
Pretax income (loss)	79,258	53,375	183,574	150,650
Assets
Total assets	1,495,817		1,495,817		1,168,242
Home Building [Member] | Southeast [Member]
Segment Reporting Information [Line Items]
Inventory impairments and land option contract abandonments	2,256	0	2,256	240
Revenues:
Total revenues	244,094	178,868	643,924	466,696
Pretax income (loss):
Pretax income (loss)	40,202	19,979	99,527	50,955
Assets
Total assets	920,828		920,828		684,752
Home Building [Member] | Corporate and Other [Member]
Pretax income (loss):
Pretax income (loss)	(46,265)	$ (47,806)	(124,188)	$ (115,215)
Assets
Total assets	$ 426,572		$ 426,572		$ 480,048