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Commitments and Contingent Liabilities	3 Months Ended
Commitments and Contingent Liabilities	Feb. 28, 2019
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingent Liabilities	Commitments and Contingent Liabilities The Company is party to various claims, legal actions and complaints arising in the ordinary course of business. In the opinion of management, the disposition of these matters will not have a material adverse effect on the Company’s consolidated financial statements. The Company is also a party to various lawsuits involving purchases and sales of real property. These lawsuits include claims regarding representations and warranties made in connection with the transfer of properties and disputes regarding the obligation to purchase or sell properties. In July 2017, CalAtlantic Group, Inc., a subsidiary of the Company, was notified by the San Francisco Regional Water Quality Control Board of CalAtlantic’s non-compliance with the Clean Water Act at a development in San Ramon, CA. In February 2019, the Company paid monetary sanctions that were not material to resolve this matter.