Schedule of Reportable Segment Information (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
Segment Reporting Information [Line Items]
Sales to external customers	$ 282,493	$ 285,859	$ 547,538	$ 555,745
Intercompany sales	0	0	0	0
Net income:
Continuing operations	22,132	23,315	35,654	41,942
Discontinued operations	356	734	860	1,393
North America
Segment Reporting Information [Line Items]
Sales to external customers	138,782	142,684	268,303	271,620
Intercompany sales	30,696	31,796	58,593	60,341
Net income:
Continuing operations	19,196	17,032	31,676	29,637
Discontinued operations	0	0	0
Europe
Segment Reporting Information [Line Items]
Sales to external customers	78,883	67,997	153,821	141,120
Intercompany sales	28,238	22,433	57,096	47,669
Net income:
Continuing operations	6,199	3,210	10,316	8,593
Discontinued operations	0	0	0
International
Segment Reporting Information [Line Items]
Sales to external customers	64,828	75,178	125,414	143,005
Intercompany sales	4,789	6,039	8,638	10,916
Net income:
Continuing operations	2,544	7,770	6,403	15,566
Discontinued operations	356	734	860	1,393
Reconciling Items
Segment Reporting Information [Line Items]
Sales to external customers	0	0	0
Intercompany sales	(63,723)	(60,268)	(124,327)	(118,926)
Net income:
Continuing operations	(5,807)	(4,697)	(12,741)	(11,854)
Discontinued operations	$ 0		$ 0	$ 0