Business Segments - Information on Company's Business Segments (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2013
Segment Reporting Information [Line Items]
Sales to external customers	$ 857,553	$ 784,707	$ 1,695,159	$ 1,532,284
Intersegment sales	0	0	0	0
Segment profit (loss)	18,676	38,348	52,097	66,112
Restructuring	3,756	1,088	6,845	5,848
Segment assets	2,236,845		2,236,845		2,102,754
Reportable Geographical Components [Member] | North America [Member]
Segment Reporting Information [Line Items]
Sales to external customers	452,187	400,098	884,792	782,906
Intersegment sales	3,134	3,104	6,493	6,838
Segment profit (loss)	36,469	37,626	74,929	71,432
Restructuring	79	104	177	1,888
Segment assets	949,061		949,061		866,847
Reportable Geographical Components [Member] | Europe [Member]
Segment Reporting Information [Line Items]
Sales to external customers	305,738	283,647	613,899	548,154
Intersegment sales	2,123	2,550	4,350	4,397
Segment profit (loss)	(12,863)	(1,231)	(16,045)	(7,284)
Restructuring	3,515	989	6,378	3,959
Segment assets	755,113		755,113		680,920
Reportable Geographical Components [Member] | South America [Member]
Segment Reporting Information [Line Items]
Sales to external customers	41,406	50,275	81,172	95,677
Intersegment sales	0	0	0	0
Segment profit (loss)	(4,309)	(541)	(6,816)	(3,922)
Restructuring	0	0	0	0
Segment assets	145,305		145,305		138,469
Reportable Geographical Components [Member] | Asia Pacific [Member]
Segment Reporting Information [Line Items]
Sales to external customers	58,222	50,687	115,296	105,547
Intersegment sales	1,625	2,316	3,472	4,421
Segment profit (loss)	(621)	2,494	29	5,886
Restructuring	162	(5)	290	1
Segment assets	254,970		254,970		243,736
Reportable Geographical Components [Member] | Total geographical [Member]
Segment Reporting Information [Line Items]
Sales to external customers	857,553	784,707	1,695,159	1,532,284
Eliminations and other [Member]
Segment Reporting Information [Line Items]
Intersegment sales	(6,882)	(7,970)	(14,315)	(15,656)
Segment assets	$ 132,396		$ 132,396		$ 172,782