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Derivatives and Hedging (Narrative) (Details) - USD ($)
Mar. 31, 2020
Dec. 31, 2019
Derivative Instruments And Hedging Activities Disclosures [Line Items]    
Accumulated unrealized gain on foreign currency contracts , net of tax $ 100,000  
Maximum [Member]    
Derivative Instruments And Hedging Activities Disclosures [Line Items]    
Accumulated unrealized gain on foreign currency contracts , net of tax   $ 100,000
Foreign Exchange Forward Contracts [Member] | Designated as Hedging Instrument [Member] | Cash Flow Hedges [Member]    
Derivative Instruments And Hedging Activities Disclosures [Line Items]    
Notional value of derivative contracts $ 3,400,000 $ 4,900,000