Balance Sheet Components - Other Assets (Detail) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Deferred Costs Capitalized Prepaid And Other Assets Disclosure [Abstract]
Deferred tax assets, net	$ 299,739	$ 229,975
Prepaid expenses, non-current	49,799	61,039
Debt issuance costs, net	35,982	41,847
Deposits	32,445	25,543
Restricted cash, non-current	15,644	16,178
Derivative instruments	3,224	4,118
Other assets, non-current	6,899	8,624
Other assets	$ 443,732	$ 387,324