Segments and Geographical Information - Net Revenues by Geographic Area (Detail) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Segment Reporting Information [Line Items]
Net revenues	[1]	$ 845,486	$ 761,653	$ 660,206
United States
Segment Reporting Information [Line Items]
Net revenues	[1]	585,874	532,569	491,410
the Netherlands
Segment Reporting Information [Line Items]
Net revenues	[1]	167,128	156,817	122,494
Other international
Segment Reporting Information [Line Items]
Net revenues	[1]	$ 92,484	$ 72,267	$ 46,302

[1] 2 Long-lived assets are attributed to countries based on entity that owns the assets.