Fair Value Measurement (Financial Assets And Liabilities Measured At Fair Value On A Recurring Basis) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Assets, Fair Value Disclosure [Abstract]
Cash equivalents	$ 191,214	$ 68,498
Marketable securities	4,448	1,173
Foreign currency derivatives	1,884	3,509
Interest Rate Swap [Member]
Liabilities, Fair Value Disclosure [Abstract]
Derivative liabilities	1,966	356
Foreign Exchange Forward [Member]
Liabilities, Fair Value Disclosure [Abstract]
Derivative liabilities	1,888	3,121
Level I [Member]
Assets, Fair Value Disclosure [Abstract]
Cash equivalents	191,214	68,498
Marketable securities	4,448	1,173
Foreign currency derivatives	0	0
Level I [Member] | Interest Rate Swap [Member]
Liabilities, Fair Value Disclosure [Abstract]
Derivative liabilities	0	0
Level I [Member] | Foreign Exchange Forward [Member]
Liabilities, Fair Value Disclosure [Abstract]
Derivative liabilities	0	0
Level II [Member]
Assets, Fair Value Disclosure [Abstract]
Cash equivalents	0	0
Marketable securities	0	0
Foreign currency derivatives	1,884	3,509
Level II [Member] | Interest Rate Swap [Member]
Liabilities, Fair Value Disclosure [Abstract]
Derivative liabilities	1,966	356
Level II [Member] | Foreign Exchange Forward [Member]
Liabilities, Fair Value Disclosure [Abstract]
Derivative liabilities	1,888	3,121
Level III [Member]
Assets, Fair Value Disclosure [Abstract]
Cash equivalents	0	0
Marketable securities	0	0
Foreign currency derivatives	0	0
Level III [Member] | Interest Rate Swap [Member]
Liabilities, Fair Value Disclosure [Abstract]
Derivative liabilities	0	0
Level III [Member] | Foreign Exchange Forward [Member]
Liabilities, Fair Value Disclosure [Abstract]
Derivative liabilities	$ 0	$ 0