Summary Of Significant Accounting Policies (Communities with Indicators of Impairment and Communities with Valuation Adjustments Recorded) (Details) $ in Thousands	12 Months Ended
Nov. 30, 2023 USD ($) community	Nov. 30, 2022 USD ($) community
Accounting Policies [Abstract]
# of communities with potential indicators of impairment \| community	25	15
Communities with valuation adjustments, # of communities \| community	18	9
Communities with valuation adjustments, Fair Value \| $	$ 95,731	$ 105,042
Communities with valuation adjustments, Valuation Adjustments \| $	$ 37,500	$ 33,563

Amount of inventory reserves for last-in first-out (LIFO) and other inventory valuation methods.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(6))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 330
-SubTopic 10
-Section 50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483080/330-10-50-1

Name:	us-gaap_InventoryAdjustments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant