Balance Sheet Components - Other Current Liabilities (Detail) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Other Liabilities Disclosure [Abstract]
Deferred tax liabilities, net	$ 72,004	$ 72,004
Deferred installation revenue	46,524	43,145
Customer deposits	15,136	15,174
Derivative instruments	4,014	6,515
Deferred recurring revenue	3,982	5,007
Deferred rent	2,292	3,865
Asset retirement obligations	2,106	1,290
Other current liabilities	1,618	958
Other current liabilities, total	$ 147,676	$ 147,958