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Retirement Plans - Net Benefit Costs (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Apr. 30, 2022	Apr. 30, 2021	Apr. 30, 2022	Apr. 30, 2021
Retirement Benefits [Abstract]
Administrative expenses	$ 179	$ 69	$ 359	$ 138
Interest cost	130	138	260	275
Expected return on plan assets	(128)	(236)	(255)	(472)
Prior service cost	11	11	22	22
Recognized actuarial loss	100	184	199	368
Net periodic benefit cost	$ 292	$ 166	$ 585	$ 331

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