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Retirement, Pension and Other Postretirement Plans - Defined Benefit Plan Effect of One Percentage Point Change in Assumed Health Care Cost Trend Rates and Discount Rate (Detail)
$ in Thousands
12 Months Ended
Oct. 31, 2015
USD ($)
Postretirement Benefit Plans, United States [Member]  
Pension Plans Postretirement And Other Employee Benefits [Line Items]  
Effect on total service and interest cost components increase in 2015 $ (777)
Effect on postretirement obligation increase as of October 31, 2015 (9,474)
Effect on total service and interest cost components increase in 2015 663
Effect on postretirement obligation increase as of October 31, 2015 10,492
Effect on total service and interest cost components decrease in 2015 946
Effect on postretirement obligation decrease as of October 31, 2015 12,040
Effect on total service and interest cost components decrease in 2015 (524)
Effect on postretirement obligation decrease as of October 31, 2015 (8,419)
Postretirement Benefit Plans, International [Member]  
Pension Plans Postretirement And Other Employee Benefits [Line Items]  
Effect on total service and interest cost components increase in 2015 (6)
Effect on postretirement obligation increase as of October 31, 2015 (96)
Effect on total service and interest cost components increase in 2015 17
Effect on postretirement obligation increase as of October 31, 2015 120
Effect on total service and interest cost components decrease in 2015 7
Effect on postretirement obligation decrease as of October 31, 2015 126
Effect on total service and interest cost components decrease in 2015 (13)
Effect on postretirement obligation decrease as of October 31, 2015 $ (93)