Segment Information - Schedule of Reportable Segment Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Segment Reporting Information [Line Items]
Sales to external customers	$ 279,268	$ 256,708
Intercompany sales	0	0
Operating income (loss)	$ 31,147	$ 24,541
Operating margin %	11.20%	9.60%
Operating Segments | Americas
Segment Reporting Information [Line Items]
Sales to external customers	$ 167,342	$ 158,502
Intercompany sales	27,832	36,176
Operating income (loss)	$ 31,345	$ 23,909
Operating margin %	18.70%	15.10%
Operating Segments | International
Segment Reporting Information [Line Items]
Sales to external customers	$ 111,926	$ 98,206
Intercompany sales	60,688	51,110
Operating income (loss)	$ 8,408	$ 7,569
Operating margin %	7.50%	7.70%
Operating Segments | Corporate
Segment Reporting Information [Line Items]
Sales to external customers	$ 0	$ 0
Intercompany sales	0	0
Operating income (loss)	(8,606)	(6,937)
Reconciling Items
Segment Reporting Information [Line Items]
Sales to external customers	0	0
Intercompany sales	(88,520)	(87,286)
Operating income (loss)	$ 0	$ 0