Information about Geographic Areas and Products - Geographic Disclosures (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Revenues by geography
Total revenues		$ 788,926	$ 589,222
Percentage of U.S. revenues in North America		94.00%	95.00%
Property and equipment by geography
Property and equipment, net	[1]	$ 350,651		$ 347,216
Percentage of U.S. net property and equipment in North America		76.00%
North America
Revenues by geography
Total revenues		$ 525,551	$ 387,473
Property and equipment by geography
Property and equipment, net		226,935		227,471
EMEA
Revenues by geography
Total revenues		193,832	152,426
Property and equipment by geography
Property and equipment, net		80,478		82,526
Asia Pacific and other
Revenues by geography
Total revenues		69,543	$ 49,323
Property and equipment by geography
Property and equipment, net		$ 43,238		$ 37,219

[1] We adopted Topic 842 using the modified retrospective method as of January 1, 2019 and elected the transition option that allows us not to restate the comparative periods in our condensed consolidated financial statements in the year of adoption. See Note 2 for further details.