Homebuilding Senior Notes and Other Debts Payable (Letter of Credit Facilities) (Details) - USD ($) $ in Thousands	May 31, 2020	Nov. 30, 2019
Performance letters of credit
Line of Credit Facility [Line Items]
Letters of credit outstanding	$ 726,191	$ 715,793
Financial letters of credit
Line of Credit Facility [Line Items]
Letters of credit outstanding	220,264	184,075
Surety bonds
Line of Credit Facility [Line Items]
Letters of credit outstanding	2,995,941	2,946,167
Anticipated future costs related to site improvements subject to performance surety bonds
Line of Credit Facility [Line Items]
Letters of credit outstanding	$ 1,496,571	$ 1,427,145