Accrued Expenses and Other Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Accounts Payable and Accrued Liabilities, Current [Abstract]
Payroll and other related benefits	$ 111,421	$ 108,230
Bandwidth and co-location	61,084	48,228
Property, use and other taxes	52,959	47,364
Professional service fees	4,277	4,636
Other accrued expenses	9,036	7,708
Total	238,777	216,166
Deferred rent	29,668	32,876
Uncertain tax positions	73,231	53,641
Other long-term liabilities	15,792	6,751
Total	$ 118,691	$ 93,268