Derivative Financial Instruments Not Designated for Hedge Accounting (Details) (USD $)	12 Months Ended
	Oct. 31, 2014 NrCounterparty	Oct. 31, 2013 NrCounterparty	Oct. 31, 2012 NrCounterparty
Derivative Instruments Not Designated As Hedging Instruments [Line Items]
2017 senior notes principal value repurchased		$ 250,000,000
Foreign Exchange Contracts [Member]
Derivative Instruments Not Designated As Hedging Instruments [Line Items]
Total number of foreign exchange contracts counterparties of other derivatives not designated as hedging instruments	4	5	8
Notional amount of other derivative financial instruments not designated for hedge accounting	16,800,000	59,100,000	35,700,000
Other assets fair value	289,000	34,000
Other liabilities fair value	290,000	981,000
Net gains (losses) recognized	15,000	1,293,000	288,000
Stock Index Futures Contracts [Member]
Derivative Instruments Not Designated As Hedging Instruments [Line Items]
Total number of stock index futures counterparties of other derivatives not designated as hedging instruments	1	1	1
Notional amount of other derivative financial instruments not designated for hedge accounting	177,300,000	200,700,000	97,100,000
Other assets fair value	2,685,000	81,000
Other liabilities fair value	1,614,000	7,288,000
Net gains (losses) recognized	(12,902,000)	(31,861,000)	(11,361,000)
Interest Rate Futures Contracts Member [Member]
Derivative Instruments Not Designated As Hedging Instruments [Line Items]
Total number of interest rate futures counterparties of other derivatives not designated as hedging instruments	1	0	0
Notional amount of other derivative financial instruments not designated for hedge accounting	12,400,000
Other assets fair value	0
Other liabilities fair value	83,000
Net gains (losses) recognized	(75,000)	0	0
Commodity Futures Contracts [Member]
Derivative Instruments Not Designated As Hedging Instruments [Line Items]
Total number of commodity futures counterparties of other derivatives not designated as hedging instruments	1	1	1
Notional amount of other derivative financial instruments not designated for hedge accounting	32,300,000	12,900,000	11,800,000
Other assets fair value	1,442,000	219,000
Other liabilities fair value	631,000	143,000
Net gains (losses) recognized	720,000	842,000	693,000
Interest Rate Contract [Member]
Derivative Instruments Not Designated As Hedging Instruments [Line Items]
Net gains (losses) recognized	0	(3,075,000)	0
Total [Member]
Derivative Instruments Not Designated As Hedging Instruments [Line Items]
Other assets fair value	4,416,000	334,000
Other liabilities fair value	2,618,000	8,412,000
Net gains (losses) recognized	$ (12,242,000)	$ (32,801,000)	$ (10,380,000)