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Retirement Plans - Narrative (Details) - USD ($)	3 Months Ended		6 Months Ended
	Apr. 30, 2020	Apr. 30, 2019	Apr. 30, 2020	Apr. 30, 2019
Retirement Benefits [Abstract]
Average earnings			5 years
Contributions	$ 0	$ 150,000	$ 0	$ 300,000

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- Definition

Defined Benefit Plan, Average Earnings, Term

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- Definition

Amount of contribution received by defined benefit plan from employer which increases plan assets.

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