Balance Sheet Components - Other Current Liabilities (Detail) - USD ($) $ in Thousands	Dec. 31, 2018	Jan. 01, 2018	Dec. 31, 2017
Other Liabilities Disclosure [Abstract]
Deferred revenue, current	$ 73,143		$ 87,300
Customer deposits	20,430		16,598
Derivative instruments	8,812		34,466
Deferred rent	6,466		6,546
Dividends payable	8,795		11,181
Asset retirement obligations	6,776		1,716
Other current liabilities	2,573		2,107
Other current liabilities, total	$ 126,995	$ 143,699	$ 159,914