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Derivatives and Risk Management - Derivative Notional Amounts (Details) - Derivatives Designated as Hedging Instruments - Cash Flow Hedging - USD ($) $ in Thousands | Mar. 31, 2021 | Dec. 31, 2020
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Derivative [Line Items] |  |
Notional amount | $ 67,748 | $ 75,626
Foreign Exchange Contract | United Kingdom, Pounds |  |
Derivative [Line Items] |  |
Notional amount | 10,214 | 9,545
Foreign Exchange Contract | Japan, Yen |  |
Derivative [Line Items] |  |
Notional amount | 16,209 | 18,637
Foreign Exchange Contract | Euro Member Countries, Euro |  |
Derivative [Line Items] |  |
Notional amount | $ 41,325 | $ 47,444

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- Definition Nominal or face amount used to calculate payment on derivative. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5580258-113959 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5579245-113959 + Details
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