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Fair Value Disclosures (Level 4 loan UPB vs FV) (Details 1) - USD ($)
$ in Thousands
Oct. 31, 2021
Oct. 31, 2020
Aggregate unpaid principal and fair value of mortgage loans held for sale    
Fair value $ 247,211 $ 231,797
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Assets Held-for-sale [Member] | Residential Mortgage [Member]    
Aggregate unpaid principal and fair value of mortgage loans held for sale    
Aggregate unpaid principal balance 244,467 225,826
Fair value 247,211 231,797
Excess $ 2,744 $ 5,971