Employee Benefits (Narrative) (Details) - USD ($) $ in Thousands	6 Months Ended
	Apr. 30, 2019	Apr. 30, 2018
Retirement Benefits, Description [Abstract]
Defined benefit plan, contributions by employer	$ 2,500	$ 2,500
Defined benefit plan, estimated future employer contributions in current fiscal year	$ 7,500
Expected rate of return on plan assets for determining net periodic pension cost	8.00%