Segments and Geographical Information - Net Revenues by Geographic Area (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Segment Reporting Information [Line Items]
Net revenues	$ 490,259	$ 356,482	$ 927,183	$ 666,823
United States
Segment Reporting Information [Line Items]
Net revenues	254,020	207,021	491,123	390,294
The Netherlands
Segment Reporting Information [Line Items]
Net revenues	156,428	109,532	295,959	209,331
Other International
Segment Reporting Information [Line Items]
Net revenues	$ 79,811	$ 39,929	$ 140,101	$ 67,198