Segment Reporting (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Sales	$ 199,493	$ 201,259	$ 373,205	$ 373,849
Americas [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Sales	135,689	129,490	247,102	237,632
Europe, Middle East, Africa [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Sales	43,414	49,383	87,218	94,992
Asia Pacific [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Sales	$ 20,390	$ 22,386	$ 38,885	$ 41,225