Segment Reporting (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Segment Reporting Information [Line Items]
Intra-segment sales elimination to conform to current presentation		$ 6,491
Sales to clients [Abstract]
Net sales	111,003	112,750
Operating segment income (loss) [Abstract]
Operating income (loss)	1,971	(1,586)
Interest expense, net	(1,069)	(826)
Income (loss) before income taxes	902	(2,412)
Americas [Member]
Sales to clients [Abstract]
Net sales	86,514	86,346
Operating segment income (loss) [Abstract]
Operating income (loss)	12,093	7,951
Europe [Member]
Sales to clients [Abstract]
Net sales	19,681	22,392
Operating segment income (loss) [Abstract]
Operating income (loss)	(201)	1,423
Asia Pacific [Member]
Sales to clients [Abstract]
Net sales	9,706	8,120
Operating segment income (loss) [Abstract]
Operating income (loss)	347	114
Intersegment Sales Elimination [Member]
Sales to clients [Abstract]
Net sales	(4,898)	(4,108)
Corporate [Member]
Operating segment income (loss) [Abstract]
Operating income (loss)	$ (10,268)	$ (11,074)