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DERIVATIVE FINANCIAL INSTRUMENTS AND HEDGING ACTIVITIES - Notional Amounts (Details) - USD ($) | Dec. 31, 2020 | Dec. 31, 2019
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Derivatives designated as cash flow hedges | Derivatives designated as cash flow hedges | Foreign currency exchange contracts |  |
Derivatives, Fair Value [Line Items] |  |
Notional Amount | $ 49,000,000 | $ 56,350,000
Derivatives designated as cash flow hedges | Derivatives designated as cash flow hedges | Foreign currency option contracts |  |
Derivatives, Fair Value [Line Items] |  |
Notional Amount | 28,000,000 | 22,000,000
Derivatives designated as cash flow hedges | Derivatives designated as cash flow hedges | Interest rate swaps |  |
Derivatives, Fair Value [Line Items] |  |
Notional Amount | 900,000,000 | 650,000,000
Derivatives designated as cash flow hedges | Derivatives designated as cash flow hedges | Forward-starting interest rate swaps |  |
Derivatives, Fair Value [Line Items] |  |
Notional Amount | 475,000 | 0
Derivative not designated as a hedging instrument | Carbon options |  |
Derivatives, Fair Value [Line Items] |  |
Notional Amount | $ 0 | $ 9,592,000

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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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