Fair Value Measurement (Financial Assets And Liabilities Measured At Fair Value On A Recurring Basis) (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Assets, Fair Value Disclosure [Abstract]
Cash equivalents	$ 28,022	$ 65,384
Available for sale securities	9,785
Interest Rate Swap [Member]
Assets, Fair Value Disclosure [Abstract]
Interest rate swap contracts	1,790	1,471
Liabilities, Fair Value Disclosure [Abstract]
Interest rate swap contracts	392	762
Foreign Exchange Forward [Member]
Assets, Fair Value Disclosure [Abstract]
Foreign currency derivatives	5,370	6,096
Liabilities, Fair Value Disclosure [Abstract]
Foreign currency derivatives	2,571	3,147
Other Contract [Member]
Assets, Fair Value Disclosure [Abstract]
Other derivatives	23,425	12,308
Level I [Member]
Assets, Fair Value Disclosure [Abstract]
Cash equivalents	28,022	65,384
Available for sale securities	9,785
Level II [Member] | Interest Rate Swap [Member]
Assets, Fair Value Disclosure [Abstract]
Interest rate swap contracts	1,790	1,471
Liabilities, Fair Value Disclosure [Abstract]
Interest rate swap contracts	392	762
Level II [Member] | Foreign Exchange Forward [Member]
Assets, Fair Value Disclosure [Abstract]
Foreign currency derivatives	5,370	6,096
Liabilities, Fair Value Disclosure [Abstract]
Foreign currency derivatives	2,571	3,147
Level II [Member] | Other Contract [Member]
Assets, Fair Value Disclosure [Abstract]
Other derivatives	2,204
Level III [Member] | Other Contract [Member]
Assets, Fair Value Disclosure [Abstract]
Other derivatives	$ 21,221	$ 12,308