Fair Value Measurements (Details) - USD ($) $ in Thousands	Jul. 31, 2015	Oct. 31, 2014	Oct. 12, 2011	Nov. 01, 2006
Level 1
Current Assets
Cash equivalents	$ 5,141	$ 20,776
Other Current Assets
Derivatives	0	0
Other Accrued Liabilities
Derivatives	0	0
Level 2
Current Assets
Cash equivalents	0	0
Other Current Assets
Derivatives	16,246	2,820
Other Accrued Liabilities
Derivatives	7,546	7,294
Term Loan due 2019 | Level 1
Long-term Obligations Including Amounts due within One Year
Long-term debt	0	0
Term Loan due 2019 | Level 2
Long-term Obligations Including Amounts due within One Year
Long-term debt	$ 375,098	$ 379,108
6.0% Senior Notes due 2016
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	6.00%	6.00%		6.00%
6.0% Senior Notes due 2016 | Level 1
Long-term Obligations Including Amounts due within One Year
Long-term debt	$ 0	$ 0
6.0% Senior Notes due 2016 | Level 2
Long-term Obligations Including Amounts due within One Year
Long-term debt	$ 263,440	$ 272,025
5.125% Senior Notes due 2021
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	5.125%	5.125%	5.125%
5.125% Senior Notes due 2021 | Level 1
Long-term Obligations Including Amounts due within One Year
Long-term debt	$ 0	$ 0
5.125% Senior Notes due 2021 | Level 2
Long-term Obligations Including Amounts due within One Year
Long-term debt	$ 514,570	$ 547,000
6.625% Senior Notes due 2036
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	6.625%	6.625%		6.625%
6.625% Senior Notes due 2036 | Level 1
Long-term Obligations Including Amounts due within One Year
Long-term debt	$ 0	$ 0
6.625% Senior Notes due 2036 | Level 2
Long-term Obligations Including Amounts due within One Year
Long-term debt	159,760	181,095
Carrying Value
Current Assets
Cash equivalents	5,141	20,776
Other Current Assets
Derivatives	16,246	2,820
Other Accrued Liabilities
Derivatives	7,546	7,294
Carrying Value | Term Loan due 2019
Long-term Obligations Including Amounts due within One Year
Long-term debt	375,000	375,000
Carrying Value | 6.0% Senior Notes due 2016
Long-term Obligations Including Amounts due within One Year
Long-term debt	249,446	249,131
Carrying Value | 5.125% Senior Notes due 2021
Long-term Obligations Including Amounts due within One Year
Long-term debt	497,097	496,806
Carrying Value | 6.625% Senior Notes due 2036
Long-term Obligations Including Amounts due within One Year
Long-term debt	148,545	148,522
Total Fair Value
Current Assets
Cash equivalents	5,141	20,776
Other Current Assets
Derivatives	16,246	2,820
Other Accrued Liabilities
Derivatives	7,546	7,294
Total Fair Value | Term Loan due 2019
Long-term Obligations Including Amounts due within One Year
Long-term debt	375,098	379,108
Total Fair Value | 6.0% Senior Notes due 2016
Long-term Obligations Including Amounts due within One Year
Long-term debt	263,440	272,025
Total Fair Value | 5.125% Senior Notes due 2021
Long-term Obligations Including Amounts due within One Year
Long-term debt	514,570	547,000
Total Fair Value | 6.625% Senior Notes due 2036
Long-term Obligations Including Amounts due within One Year
Long-term debt	$ 159,760	$ 181,095