Segment Information - Revenues by Geographic Area (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Segment Reporting Information [Line Items]
Revenues	$ 594,069	$ 689,246
Operating Segments
Segment Reporting Information [Line Items]
Revenues	669,965	780,126
Operating Segments | North America
Segment Reporting Information [Line Items]
Revenues	343,846	414,948
Operating Segments | International
Segment Reporting Information [Line Items]
Revenues	326,119	365,178
Operating Segments | International | EMEA
Segment Reporting Information [Line Items]
Revenues	215,286	216,349
Operating Segments | International | Latin America
Segment Reporting Information [Line Items]
Revenues	59,661	75,250
Operating Segments | International | Asia Pacific
Segment Reporting Information [Line Items]
Revenues	51,172	73,579
Sales adjustments
Segment Reporting Information [Line Items]
Revenues	$ (75,896)	$ (90,880)