Business Segment and Geographic Information (Operations by Geographic Area) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended										12 Months Ended
	Dec. 31, 2013		Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012		Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Segment Reporting Information [Line Items]
Net sales	$ 136,231		$ 142,820	$ 132,452	$ 125,979	$ 124,176		$ 129,134	$ 125,296	$ 120,155	$ 537,482	[1]	$ 498,761	[1]	$ 548,341	[1]
Long-Lived Assets	304,773	[2]				307,346	[2]				304,773	[2]	307,346	[2]	306,809	[2]
United States [Member]
Segment Reporting Information [Line Items]
Net sales											118,263	[1]	115,035	[1]	109,581	[1]
Long-Lived Assets	64,545	[2]				64,845	[2]				64,545	[2]	64,845	[2]	65,432	[2]
Asia [Member]
Segment Reporting Information [Line Items]
Net sales											275,969	[1]	250,682	[1]	271,132	[1]
Long-Lived Assets	68,613	[2]				69,830	[2]				68,613	[2]	69,830	[2]	64,181	[2]
Europe [Member]
Segment Reporting Information [Line Items]
Net sales											132,126	[1]	123,040	[1]	154,423	[1]
Long-Lived Assets	171,615	[2]				172,671	[2]				171,615	[2]	172,671	[2]	177,196	[2]
Other regions [Member]
Segment Reporting Information [Line Items]
Net sales											11,124	[1]	10,004	[1]	13,205	[1]
Long-Lived Assets	$ 0	[2]				$ 0	[2]				$ 0	[2]	$ 0	[2]	$ 0	[2]

[1] Net sales are allocated to countries based on the location of the customer.

[2] Long-lived assets are based on the location of the asset and are comprised of goodwill and other intangibles and property, plant and equipment.