Summary Of Significant Accounting Policies (Communities with Indicators of Impairment and Communities with Valuation Adjustments Recorded) (Details) $ in Thousands	12 Months Ended
Nov. 30, 2022 USD ($) community	Nov. 30, 2021 USD ($) community
Accounting Policies [Abstract]
# of communities with potential indicators of impairment \| community	15	4
Communities with valuation adjustments, # of communities \| community	9	1
Communities with valuation adjustments, Fair Value \| $	$ 105,042	$ 5,267
Communities with valuation adjustments, Valuation Adjustments \| $	$ 33,563	$ 11,849

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

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 330
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=116847112&loc=d3e4492-108314

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.6(b))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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