Components of Accounts Payable and Accrued Liabilities (Detail) (USD $) In Thousands, unless otherwise specified	Apr. 30, 2014	Oct. 31, 2013
Accounts payable and accrued liabilities Current
Payroll and related benefits	$ 216,440	$ 302,374
Other accrued liabilities	45,790	47,248
Accounts payable	13,381	8,575
Total	$ 275,611	$ 358,197	[1]

[1] Derived from audited financial statements.