Balance Sheet Components - Other Liabilities (Detail) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Other Liabilities Disclosure [Abstract]
Asset retirement obligations	$ 96,823	$ 92,979
Deferred tax liabilities, net	252,287	274,341
Deferred installation revenue	117,021	96,744
Deferred rent	97,782	76,566
Accrued taxes	64,378	56,208
Dividends payable	6,669	8,495
Customer deposits	10,849	4,773
Deferred recurring revenue	4,236	2,681
Derivative instruments	6,381	140
Other liabilities	5,284	10,321
Other liabilities noncurrent	$ 661,710	$ 623,248