Financial Services (Schedule of Assets and Liabilities) (Details) - USD ($) $ in Thousands		Aug. 31, 2021	Nov. 30, 2020	Aug. 31, 2020	Nov. 30, 2019
Assets
Cash and cash equivalents		$ 351,345	$ 682,529	$ 723,126	$ 454,858
Receivables		295,092	272,659
Other assets		111,022	125,510
Total assets		5,756,347	5,356,442
Financial Service [Member]
Assets
Cash and cash equivalents		1,204	1,339	$ 1,093
Receivables		1,708	1,988
Investments in unconsolidated joint ventures		11,151	10,978
Other assets	[1]	23,355	21,897
Total assets		37,418	36,202
Liabilities
Accounts payable and accrued expenses		2,308	2,629
Total liabilities		2,308	2,629
Contract assets		$ 23,100	$ 21,500

[1] Other assets at August 31, 2021 and November 30, 2020 included $23.1 million and $21.5 million, respectively, of contract assets for estimated future renewal commissions.