Income Taxes (Narrative) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Income Taxes [Line Items]
Income tax incentives	$ 927	$ 1,734
Net impact of tax incentives, per diluted share	$ 0.02	$ 0.03
Unrecognized tax benefits including interest and penalties	$ 16,600
Interest on unrecognized tax	1,700
Penalty on unrecognized tax	1,600
China [Member]
Income Taxes [Line Items]
Income tax incentives	0	$ 353
Malaysia [Member}
Income Taxes [Line Items]
Income tax incentives	$ 367	419
Income tax holidays expiration date	2025
Thailand [Member]
Income Taxes [Line Items]
Income tax incentives	$ 560	$ 962
Income tax holidays expiration date	2028