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Derivatives - Summary of Non-Designated Foreign Exchange Forwards (Details) - Not Designated as Hedging Instrument $ in Thousands | 12 Months Ended
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Dec. 31, 2020 USD ($) contract | Dec. 31, 2019 USD ($) contract
Interest rate swap liability |  |
Derivative [Line Items] |  |
Number of Contracts | contract | 1 | 1
Aggregate Notional Amount (in thousands) | $ | $ 500,000 | $ 500,000
Weighted-Average Years to Maturity | 2 years 5 months 26 days | 6 years 4 months 13 days
Fx contracts - GBP | Foreign currency forward, net |  |
Derivative [Line Items] |  |
Number of Contracts | contract | 93 | 156
Aggregate Notional Amount (in thousands) | $ | $ 428,493 | $ 735,349
Weighted-Average Years to Maturity | 2 years 14 days | 1 year 5 months 26 days
Fx contracts - EUR | Foreign currency forward, net |  |
Derivative [Line Items] |  |
Number of Contracts | contract | 69 | 44
Aggregate Notional Amount (in thousands) | $ | $ 239,466 | $ 168,879
Weighted-Average Years to Maturity | 2 years 7 months 9 days | 3 years 2 months 19 days

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- Definition Average remaining period until maturity of the derivative contract, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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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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