Pension and Other Post-Retirement Benefit Matters Pension cash flows (Details) (USD $) In Thousands, unless otherwise specified	Oct. 31, 2012
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Estimated Future Employer Contributions in Next Fiscal Year, Description	$ 5,321
Pension Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Expected Future Benefit Payments, Next Twelve Months	3,480
Defined Benefit Plan, Expected Future Benefit Payments, Year Two	3,630
Defined Benefit Plan, Expected Future Benefit Payments, Year Three	3,900
Defined Benefit Plan, Expected Future Benefit Payments, Year Four	3,960
Defined Benefit Plan, Expected Future Benefit Payments, Year Five	4,230
Defined Benefit Plans, Expected Future Benefit Payments, Thereafter	23,300
Other Postretirement Benefit Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Expected Future Benefit Payments, Next Twelve Months	92
Defined Benefit Plan, Expected Future Benefit Payments, Year Two	86
Defined Benefit Plan, Expected Future Benefit Payments, Year Three	82
Defined Benefit Plan, Expected Future Benefit Payments, Year Four	81
Defined Benefit Plan, Expected Future Benefit Payments, Year Five	74
Defined Benefit Plans, Expected Future Benefit Payments, Thereafter	$ 308