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Retirement Plans - Changes in Accumulated Other Comprehensive Income in the Plan (Details) - Pension Plan - USD ($)
$ in Thousands
12 Months Ended
Oct. 31, 2019
Oct. 31, 2018
Changes recognized in other comprehensive income:    
Net loss (gain) arising during the year $ 1,306 $ (807)
Amortization of prior service cost (45) (45)
Amortization of net loss (402) (700)
Total recognized in other comprehensive income 859 (1,552)
Total recognized in net periodic benefit and other comprehensive income $ 1,234 $ (854)