Stockholders' Equity (Schedule of Changes in Accumulated Other Comprehensive Income (Loss))(Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Jul. 31, 2016	Jul. 31, 2015	Jul. 31, 2016	Jul. 31, 2015	Oct. 31, 2015
Foreign Currency Translation Adjustment [Roll Forward]
Foreign Currency Translation Adjustment, Beginning Balance			$ (171,800)	$ (92,400)	$ (92,400)
Foreign Currency Translation Adjustment, Gross change in value for the period			(188,400)		(79,400)
Foreign Currency Translation Adjustment, Reclassification adjustments for loss realized in net income					0
Foreign Currency Translation Adjustment, Tax effect for the period			0		0
Foreign Currency Translation Adjustment, Ending Balance	$ (360,200)		(360,200)		(171,800)
Change in Value of Derivative Instruments [Roll Forward]
Change in Value of Derivative Instruments, Beginning Balance			0	(100)	(100)
Change in Value of Derivative Instruments, Gross change in value for the period			0		0
Change in Value of Derivative Instruments, Reclassification adjustments for loss realized in net income					100
Change in value of derivative instruments, Tax effect for the period	0	$ 0	0	(30)	0
Change in Value of Derivative Instruments, Ending Balance	0		0		0
Minimum Pension Liability [Roll Forward]
Minimum Pension Liability, Beginning Balance			(19,800)	(13,700)	(13,700)
Minimum Pension Liability, Gross change in value for the period			0		(10,000)
Minimum Pension Liability, Reclassification adjustments for loss realized in net income					0
Minimum Pension Liability, Tax effect for the period			0		3,900
Minimum Pension Liability, Ending Balance	(19,800)		(19,800)		(19,800)
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Total, Beginning balance			(191,643)	$ (106,200)	(106,200)
Gross change in value for the period			(188,400)		(89,400)
Reclassification adjustments for loss realized in net income					100
Tax effect for the period			0		3,900
Total, Ending balance	$ (380,032)		$ (380,032)		$ (191,643)