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Lennar Homebuilding Senior Notes And Other Debts Payable (Schedule of Letter of Credit Facilities) (Details) - USD ($) $ in Thousands	Nov. 30, 2021	Nov. 30, 2020
Line of Credit Facility [Line Items]
Letters of credit outstanding	$ 1,400,000
Performance letters of credit
Line of Credit Facility [Line Items]
Letters of credit outstanding	924,584	$ 752,096
Financial Letters Of Credit
Line of Credit Facility [Line Items]
Letters of credit outstanding	425,843	283,193
Surety bonds
Line of Credit Facility [Line Items]
Letters of credit outstanding	3,553,047	3,087,711
Anticipated future costs primarily for site improvements related to performance surety bonds
Line of Credit Facility [Line Items]
Letters of credit outstanding	$ 1,690,861	$ 1,584,642