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Financial Instruments and Fair Value Measurements (Schedule of Derivative Instruments in Statement of Financial Position, Fair Value) (Details) - USD ($)
$ in Thousands
Feb. 18, 2020
Dec. 31, 2018
Forward Currency Contracts [Member] | Cash Flow Hedging [Member] | Designated as Hedging Instrument [Member]    
Derivatives, Fair Value [Line Items]    
Notional amounts   $ 9,017
Cash flow hedges , other derivative assets   $ 370
Interest Rate Swap [Member]    
Derivatives, Fair Value [Line Items]    
Notional amounts $ 50,000