Segment Information - Schedule of Reportable Segment Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Segment Reporting Information [Line Items]
Sales to external customers	$ 295,998	$ 287,011	$ 575,266	$ 543,719
Intercompany sales	0	0	0	0
Adjusted operating income (loss)	48,995	39,917	80,142	64,458
Restructuring and other charges	(1,338)	(227)	(1,808)	(958)
Currency exchange gains (losses), net	242	(1,557)	(1,708)	991
Operating income	47,899	38,133	76,626	64,491
Total Assets	1,416,249	1,285,370	1,416,249	1,285,370	$ 1,422,863
Americas
Segment Reporting Information [Line Items]
Restructuring and other charges			(700)
International
Segment Reporting Information [Line Items]
Restructuring and other charges			(2,200)	(800)
Operating Segments | Americas
Segment Reporting Information [Line Items]
Sales to external customers	177,623	179,565	344,965	338,067
Intercompany sales	30,037	35,242	57,869	71,418
Adjusted operating income (loss)	$ 44,671	$ 37,454	$ 76,016	$ 61,363
Adjusted operating margin %	25.10%	20.90%	22.00%	18.20%
Total Assets	$ 893,997	$ 908,868	$ 893,997	$ 908,868
Operating Segments | International
Segment Reporting Information [Line Items]
Sales to external customers	118,375	107,446	230,301	205,652
Intercompany sales	69,648	61,064	130,337	112,174
Adjusted operating income (loss)	$ 12,741	$ 10,892	$ 21,148	$ 18,461
Adjusted operating margin %	10.80%	10.10%	9.20%	9.00%
Total Assets	$ 516,064	$ 363,012	$ 516,064	$ 363,012
Operating Segments | Corporate
Segment Reporting Information [Line Items]
Sales to external customers	0	0	0	0
Intercompany sales	0	0	0	0
Adjusted operating income (loss)	(8,417)	(8,429)	(17,022)	(15,366)
Total Assets	4,675	3,571	4,675	3,571
Reconciling Items
Segment Reporting Information [Line Items]
Sales to external customers	0	0	0	0
Intercompany sales	(99,685)	(96,306)	(188,206)	(183,592)
Adjusted operating income (loss)
Total Assets	$ 1,513	$ 9,919	$ 1,513	$ 9,919