Employee Benefits (Schedule of Components of Net Periodic Pension Costs) (Details) - USD ($) $ in Thousands	3 Months Ended
	Jan. 31, 2016	Jan. 31, 2015
General Discussion of Pension and Other Postretirement Benefits [Abstract]
Service cost	$ 2,300	$ 2,000
Interest cost	1,200	1,100
Expected returns on assets	(1,600)	(1,500)
Amortization of prior service cost	0	0
Recognized net actuarial loss	400	200
Net periodic pension cost	$ 2,300	$ 1,800