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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 | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Forward Currency Contracts [Member] |  |  |
Derivatives designated as cash flow hedges: |  |  |
Gain (loss) recorded in other comprehensive income (loss) | $ (1,244) | $ 450 | $ 1,967
Gain (loss) reclassified from other comprehensive income (loss) into net income | (1,499) | 820 | 1,376
Foreign currency cash flow hedge gain (loss) to be reclassified during next 12 months | 255 |  |
Losses expected to be recognized in interest expense in next year | 591 |  |
Losses expected to be recognized in interest expense after next year | 727 |  |
Interest Rate Swap [Member] |  |  |
Derivatives designated as cash flow hedges: |  |  |
Gain (loss) recorded in other comprehensive income (loss) | (1,751) |  |
Gain (loss) reclassified from other comprehensive income (loss) into net income | (433) |  |
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 | (1,146) | 695 | 1,259
Design and Development Expense [Member] | Forward Currency Contracts [Member] |  |  |
Derivatives designated as cash flow hedges: |  |  |
Gain (loss) reclassified from other comprehensive income (loss) into net income | (29) | 125 | 117
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 | $ (324) | $ 0 | $ 0

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- Definition Amount, before tax and reclassification, of gain (loss) from derivative instrument designated and qualifying cash flow hedge included in assessment of hedge effectiveness. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 20 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=121577181&loc=SL110061190-113977 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -Subparagraph (b)(2) -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5618551-113959 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5624171-113959 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=121641772&loc=d3e637-108580 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 10A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=121641772&loc=SL7669646-108580 + Details
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