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Financial Instruments and Fair Value Measurements (Schedule of Cash Flow Hedges Included in Accumulated Other Comprehensive Income (Loss)) (Details) - Designated as Hedging Instrument [Member] - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2020 | Sep. 30, 2019 | Sep. 30, 2020 | Sep. 30, 2019
Forward Currency Contracts [Member] |  |  |  |
Derivatives designated as cash flow hedges: |  |  |  |
Gain (loss) recorded in other comprehensive income (loss) | $ 642 | $ (29) | $ (1,962) | $ 397
Gain (loss) reclassified from other comprehensive income (loss) into net income | (499) | 131 | (1,602) | 646
Foreign currency cash flow hedge gain (loss) to be reclassified during next 12 months | (360) |  | (360) |
Losses expected to be recognized in interest expense in next year | 582 |  |  |
Losses expected to be recognized in interest expense after next year | 859 |  |  |
Interest Rate Swap [Member] |  |  |  |
Derivatives designated as cash flow hedges: |  |  |  |
Gain (loss) recorded in other comprehensive income (loss) | (3) |  | (1,715) |
Gain (loss) reclassified from other comprehensive income (loss) into net income | (156) |  | (274) |
Cost of Goods Sold [Member] |  |  |  |
Derivatives designated as cash flow hedges: |  |  |  |
Gain (loss) reclassified from other comprehensive income (loss) into net income |  |  | (1,226) | 521
Cost of Goods Sold [Member] | Forward Currency Contracts [Member] |  |  |  |
Derivatives designated as cash flow hedges: |  |  |  |
Gain (loss) reclassified from other comprehensive income (loss) into net income | (387) | 131 |  |
Design and Development Expense [Member] |  |  |  |
Derivatives designated as cash flow hedges: |  |  |  |
Gain (loss) reclassified from other comprehensive income (loss) into net income |  |  | (29) | 125
Selling, General and Administrative Expenses [Member] |  |  |  |
Derivatives designated as cash flow hedges: |  |  |  |
Gain (loss) reclassified from other comprehensive income (loss) into net income |  |  | (347) | $ 0
Selling, General and Administrative Expenses [Member] | Forward Currency Contracts [Member] |  |  |  |
Derivatives designated as cash flow hedges: |  |  |  |
Gain (loss) reclassified from other comprehensive income (loss) into net income | (112) | $ 0 |  |
Interest Expense [Member] |  |  |  |
Derivatives designated as cash flow hedges: |  |  |  |
Gain (loss) reclassified from other comprehensive income (loss) into net income |  |  | $ 274 |
Interest Expense [Member] | Forward Currency Contracts [Member] |  |  |  |
Derivatives designated as cash flow hedges: |  |  |  |
Gain (loss) reclassified from other comprehensive income (loss) into net income | $ 156 |  |  |

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