Other Balance Sheet Accounts - Schedule of Other Non current Liabilities (Detail) (USD $) In Thousands, unless otherwise specified	Oct. 31, 2014	Jan. 31, 2014
Payables and Accruals [Abstract]
Deferred income taxes and income taxes payable	$ 106,759	$ 108,760
Customer liability, noncurrent	2,546	13,953
Financing obligation, building in progress-leased facility	102,975	40,171
Long-term lease liabilities and other	703,530	594,303
Other noncurrent liabilities	$ 915,810	$ 757,187