Breakdown of Revenue and Non-Current Assets by Geographical Areas - Revenue by Geographical Area (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	$ 437,614	$ 528,147	$ 940,990	$ 1,086,270
Americas
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	185,674	213,974	377,419	431,967
EMEA
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	159,621	194,359	349,735	404,002
Asia-Pacific
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	$ 92,319	$ 119,814	$ 213,836	$ 250,301