Business Segments - Information on Company's Business Segments (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
Segment Reporting Information [Line Items]
Sales to external customers	$ 780,954	$ 764,057	$ 2,476,113	$ 2,296,341
Intersegment sales	0	0	0	0
Segment profit (loss)	41,096	24,753	93,193	90,865
Restructuring	4,845	1,907	11,690	7,755
Segment assets	2,165,747		2,165,747		2,102,754
Reportable Geographical Components [Member]
Segment Reporting Information [Line Items]
Sales to external customers	780,954	764,057	2,476,113	2,296,341
Reportable Geographical Components [Member] | North America [Member]
Segment Reporting Information [Line Items]
Sales to external customers	413,486	408,615	1,298,278	1,191,521
Intersegment sales	3,488	2,121	9,981	8,959
Segment profit (loss)	45,516	31,726	120,445	103,158
Restructuring	(72)	73	105	1,961
Segment assets	930,369		930,369		866,847
Reportable Geographical Components [Member] | Europe [Member]
Segment Reporting Information [Line Items]
Sales to external customers	265,182	258,028	879,081	806,182
Intersegment sales	2,395	2,440	6,745	6,837
Segment profit (loss)	5,497	(7,500)	(10,548)	(14,784)
Restructuring	4,854	1,517	11,232	5,476
Segment assets	711,351		711,351		680,920
Reportable Geographical Components [Member] | South America [Member]
Segment Reporting Information [Line Items]
Sales to external customers	39,967	43,069	121,139	138,746
Intersegment sales	0	0	0	0
Segment profit (loss)	(11,115)	(1,838)	(17,931)	(5,760)
Restructuring	0	0	0	0
Segment assets	122,276		122,276		138,469
Reportable Geographical Components [Member] | Asia Pacific [Member]
Segment Reporting Information [Line Items]
Sales to external customers	62,319	54,345	177,615	159,892
Intersegment sales	1,350	3,013	4,822	7,434
Segment profit (loss)	1,198	2,365	1,227	8,251
Restructuring	63	317	353	318
Segment assets	262,708		262,708		243,736
Eliminations and other [Member]
Segment Reporting Information [Line Items]
Intersegment sales	(7,233)	(7,574)	(21,548)	(23,230)
Segment assets	$ 139,043		$ 139,043		$ 172,782