Segment Reporting (Details 2) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Net sales
Revenue from External Customers Attributed to Entity's, United States	$ 1,076,222	$ 1,086,233	$ 863,780
Total	1,803,737	1,843,092	1,431,122
Long-lived assets
Long-Lived Assets in Entity's United States	246,118	230,926	204,137
Total	437,999	402,164	365,559
France [Member]
Net sales
Revenue from External Customers Attributed to Foreign Countries	298,158	316,514	238,310
United Kingdom [Member]
Net sales
Revenue from External Customers Attributed to Foreign Countries	103,523	122,100	104,071
Long-lived assets
Long-Lived Assets in Foreign Countries	20,878	18,268	17,750
Germany [Member]
Long-lived assets
Long-Lived Assets in Foreign Countries	34,213	31,006	28,751
Singapore [Member]
Long-lived assets
Long-Lived Assets in Foreign Countries	43,239	37,827	25,174
Philippines [Member]
Long-lived assets
Long-Lived Assets in Foreign Countries	22,658	23,214	22,284
Brazil [Member]
Long-lived assets
Long-Lived Assets in Foreign Countries	18,410	18,773	21,061
All Other Countries [Member]
Net sales
Revenue from External Customers Attributed to Foreign Countries	325,834	318,245	224,961
Long-lived assets
Long-Lived Assets in Foreign Countries	$ 52,483	$ 42,150	$ 46,402