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Financial Instruments and Fair Value Disclosures - (Mortgage Servicing Rights Unobservable Inputs) (Details) - Lennar Financial Services - Level 3
May 31, 2023
Nov. 30, 2022
Mortgage prepayment rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable inputs for valuation of mortgage servicing rights 0.08 0.08
Discount rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable inputs for valuation of mortgage servicing rights 0.13 0.13
Delinquency rate    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Unobservable inputs for valuation of mortgage servicing rights 0.09 0.07