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Liabilities and Restructuring Charges - Components of Accounts Payable and Accrued Liabilities (Detail) (USD $)
In Thousands, unless otherwise specified
Jan. 31, 2015
Oct. 31, 2014
Payables and Accruals [Abstract]    
Payroll and related benefits $ 158,778us-gaap_EmployeeRelatedLiabilitiesCurrent $ 302,295us-gaap_EmployeeRelatedLiabilitiesCurrent
Other accrued liabilities 55,317us-gaap_OtherAccruedLiabilitiesCurrent 66,666us-gaap_OtherAccruedLiabilitiesCurrent
Accounts payable 28,240us-gaap_AccountsPayableCurrent 28,152us-gaap_AccountsPayableCurrent
Total $ 242,335us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent $ 397,113us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent [1]
[1] Derived from audited financial statements.