Summary of Significant Accounting Policies (Narrative) (Details) (USD $)	1 Months Ended	3 Months Ended								12 Months Ended				0 Months Ended				12 Months Ended
	Jan. 31, 2013	Oct. 31, 2013	Jul. 31, 2013	Apr. 30, 2013	Jan. 31, 2013	Oct. 31, 2012	Jul. 31, 2012	Apr. 30, 2012	Jan. 31, 2012	Oct. 31, 2013	Oct. 31, 2012	Oct. 31, 2011	Oct. 28, 2011 building	Mar. 10, 2011 Interest Rate Swap [Member] swap	Oct. 31, 2013 Interest Rate Swap [Member]	Oct. 31, 2013 Interest Rate Swap [Member] Accrued Liabilities [Member]	Oct. 31, 2012 Interest Rate Swap [Member] Accrued Liabilities [Member]	Oct. 31, 2013 Building [Member] Minimum [Member]	Oct. 31, 2013 Building [Member] Maximum [Member]	Oct. 31, 2013 Machinery and equipment [Member] Minimum [Member]	Oct. 31, 2013 Machinery and equipment [Member] Maximum [Member]
Estimates and Critical Accounting Policies [Abstract]
Goodwill impairment										$ 0	$ 0
Foreign Currency Translation [Abstract]
Net foreign exchange gain (loss)										100,000	(1,500,000)	(1,000,000)
Financial Instruments [Abstract]
Number of floating-to-fixed interest rate swaps														5
Notional amount of interest rate derivatives														200,000,000
Interest rate swaps, lower maturity range														2 months
Interest rate swaps, higher maturity range														14 months
Fixed rate on interest rate swaps, lower range														1.27%
Fixed rate on interest rate swaps, higher range														1.78%
Derivative liability, fair value															1,700,000	300,000	300,000
Reclassification from OCI to interest expense in next 12 months															1,600,000
Reclassification from OCI to interest expense after the next 12 months															70,000
Insurance Recoveries [Abstract]
Number of buildings with insurance claims													1
Insurance recoveries	19,100,000				14,100,000					14,084,000	5,000,000	0
Property, Plant and Equipment [Abstract]
Property, plant and equipment, useful life, (years)																		35 years	40 years	3 years	15 years
Interest capitalized included in construction in progress										3,100,000	2,500,000
Treasury Stock [Abstract]
Number of shares in treasury		2,339,740				1,006,512				2,339,740	1,006,512
Number of shares purchased		960,000	0	0	460,000	0	321,000	0	663,000	1,420,728	984,027
Gain (Loss) on Disposition of Business		(21,100,000)								(21,062,000)	0	0
Proceeds from Insurance Settlement, Operating Activities				$ 11,200,000	$ 2,900,000	$ 5,000,000