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Financial Instruments Measured at Fair Value - Derivatives (Details) € in Thousands, $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2020 USD ($) | Dec. 31, 2019 USD ($) | Dec. 31, 2018 USD ($) | Dec. 31, 2020 EUR (€)
Derivatives, Fair Value [Line Items] |  |  |  |  |
Unrealized Gain (Loss) on Interest Rate Swaps Designated as Cash Flow Hedges, Net |  | $ 9,000 | $ 7,787 | $ (931) |
Unrealized Gain (Loss) on Foreign Exchange Contracts Designated as Net Investment Hedges, Net |  | (13,488) | 10,368 | 0 |
Derivative Instruments, Gain (Loss) Recognized in Income, Net |  | 4,826 | 6,770 | (1,236) |
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income, Effective Portion, Net |  | (18,825) | 7,722 | 0 |
Derivative, Notional Amount |  | 914,930 | 929,966 |  |
Settlement of forward-starting interest rate swap |  | 48,378 | 0 | 0 |
Other Comprehensive Income (Loss), Derivative, Excluded Component, Increase (Decrease), before Adjustments, after Tax |  | 17,991 | 10,734 |  |
Net Investment Hedging [Member] | Designated as Hedging Instrument [Member] |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |
Derivative Instruments, Gain (Loss) Recognized in Income, Net | [1] | 8,805 | 8,068 | 0 |
Derivative (Gain (Loss) Recognized in Other Comprehensive Income before reclassification, net of tax | [2] | (6,802) | 16,489 | 0 |
Cash Flow Hedging [Member] | Designated as Hedging Instrument [Member] | Interest Rate Swap [Member] |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |
Derivative Instruments, Gain (Loss) Recognized in Income, Net |  | (3,979) | (1,298) | (1,236) |
Derivative (Gain (Loss) Recognized in Other Comprehensive Income before reclassification, net of tax |  | $ (12,023) | $ (8,767) | $ 0 |
Maturity March 2023 [Member] | Foreign Exchange Forward [Member] |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |
Derivative, Notional Amount | € |  |  |  |  | € 50,000
Maturity September 2024 [Member] | Foreign Exchange Forward [Member] |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |
Derivative, Notional Amount | € |  |  |  |  | 50,000
Maturity April 2025 [Member] | Foreign Exchange Forward [Member] |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |
Derivative, Notional Amount | € |  |  |  |  | 100,000
Maturity January 2028 [Member] | Foreign Exchange Forward [Member] |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |
Derivative, Notional Amount | € |  |  |  |  | 100,000
All Maturities [Member] | Foreign Exchange Forward [Member] |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |
Derivative, Notional Amount | € |  |  |  |  | € 300,000
Maturity December 2024 | Cash Flow Hedging [Member] | Designated as Hedging Instrument [Member] | Interest Rate Swap [Member] |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |
Derivative, Average Fixed Interest Rate |  | 0.97% |  |  | 0.97%
Derivative, Notional Amount |  | $ 300,000 |  |  |
Maturity June 2022 | Cash Flow Hedging [Member] | Designated as Hedging Instrument [Member] | Interest Rate Swap [Member] |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |
Derivative, Average Fixed Interest Rate |  | 0.90% |  |  | 0.90%
Derivative, Notional Amount |  | $ 300,000 |  |  |
Maturity June 2020 | Cash Flow Hedging [Member] | Designated as Hedging Instrument [Member] | Interest Rate Swap [Member] |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |
Derivative, Average Fixed Interest Rate |  |  | 2.33% |  |
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, before Tax |  | 2,616 |  |  |
Derivative, Notional Amount |  |  | $ 300,000 |  |
Settlement of forward-starting interest rate swap |  | 48,378 |  |  |
Accumulated Other Comprehensive Income (Loss), Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Effect Net of Tax |  | $ 34,751 |  |  |
[1] | Represents derivative amounts excluded from the assessment of effectiveness for the net investment hedges reclassified from CTA to Interest and other financing expenses, net.
[2] | Includes derivative gains (losses) excluded from the assessment of effectiveness for the net investment hedges and recognized in other comprehensive income (net of tax) of $17,991 and $10,734 for 2020 and 2019, respectively.

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- Definition Accumulated change, net of tax, in accumulated gains and losses from derivative instruments designated and qualifying as the effective portion of cash flow hedges. Includes an entity's share of an equity investee's Increase or Decrease in deferred hedging gains or losses. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=118930883&loc=d3e637-108580 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 10A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=118930883&loc=SL7669646-108580 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14 -URI http://asc.fasb.org/extlink&oid=118930883&loc=d3e681-108580 + Details
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