Income Taxes (Narrative) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2017	Jun. 30, 2016
Income Taxes [Line Items]
Income tax incentives		$ 4,170	$ 2,044
Net impact of tax incentives, per diluted share		$ 0.08	$ 0.04
Unrecognized tax benefits including interest and penalties	$ 9,000	$ 9,000
Interest on unrecognized tax	17	17
Additional reserve for uncertain tax benefits	$ 900
China [Member]
Income Taxes [Line Items]
Income tax incentives		$ 471	$ 0
Income tax holidays expiration date		2018
Malaysia [Member}
Income Taxes [Line Items]
Income tax incentives		$ 1,773	707
Income tax holidays expiration date		2021
Thailand [Member]
Income Taxes [Line Items]
Income tax incentives		$ 1,926	$ 1,337
Income tax holidays expiration date		2028