Other Comprehensive Income (Loss) (Accumulated Other Comprehensive Loss In Equity) (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Other Comprehensive Income (Loss), before Tax [Abstract]
Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax	$ (12,676)	$ 14,377
Accumulated Other Comprehensive Income (Loss), Unrealized Loss on Pension Obligation	(1,404)	(654)
Unrealized gain on post-retirement benefit obligations	20,358	16,939
Unrealized gain (loss) on hedging instruments	7,345	(793)
Accumulated other comprehensive income (loss)	$ 13,623	$ 29,869