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Derivative Instruments (Narrative) (Details) - USD ($) $ in Thousands | Jun. 30, 2020 | Dec. 31, 2019 | Nov. 30, 2019 | Oct. 31, 2019 | Sep. 30, 2019 | Aug. 31, 2019 | Jul. 31, 2019
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Scenario, Forecast [Member] | Foreign Exchange Contract Used [Member] |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |
Derivative, Notional Amount |  |  |  | $ 7,948 | $ 7,695 | $ 8,595 |
Scenario, Forecast [Member] | Foreign Exchange Contract Entered [Member] |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |
Derivative, Notional Amount | $ 10,000 | $ 2,042 | $ 2,988 |  | $ 1,251 | $ 653 |
Subsequent Events [Member] | Foreign Exchange Contract Used [Member] |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |
Derivative, Notional Amount |  |  |  |  |  |  | $ 14,130
Subsequent Events [Member] | Foreign Exchange Contract Entered [Member] |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |
Derivative, Notional Amount |  |  |  |  |  |  | $ 3,234

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- Definition Aggregate notional amount specified by the derivative(s). Expressed as an absolute value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 12 -Section 13 -Sentence Column B + Details
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