Income Taxes (Narrative) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017
Income Taxes [Line Items]
Cumulative undistributed earnings of foreign subsidiaries				$ 928,000
Foreign earnings repatriated	$ 277,000
Income tax incentives	$ 2,874	$ 1,255
Net impact of tax incentives, per diluted share	$ 0.06	$ 0.03
Unrecognized tax benefits including interest and penalties	$ 300
Interest on unrecognized tax	47
Decreases related to prior year tax positions	500
Scenario Forecast [Member]
Income Taxes [Line Items]
Foreign earnings repatriated			$ 223,000
State And Local Jurisdiction [Member]
Income Taxes [Line Items]
Income tax expense on foreign earnings expected to be repatriated	9,400
Foreign Country [Member]
Income Taxes [Line Items]
Income tax expense on foreign earnings expected to be repatriated	$ 30,700
China [Member]
Income Taxes [Line Items]
Income tax holidays expiration date	2018
Income tax incentives	$ 422	$ 167
Malaysia [Member}
Income Taxes [Line Items]
Income tax holidays expiration date	2021
Income tax incentives	$ 1,308	532
Thailand [Member]
Income Taxes [Line Items]
Income tax holidays expiration date	2028
Income tax incentives	$ 1,144	$ 556