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Derivatives - Summary of Non-Designated Foreign Exchange Forwards (Details) - Not Designated as Hedging Instrument $ in Thousands | 3 Months Ended | 12 Months Ended
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Mar. 31, 2021 USD ($) contract | Dec. 31, 2020 USD ($) contract
Interest Rate Swap |  |
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 2 months 15 days | 2 years 5 months 26 days
Fx contracts - GBP | Foreign currency forward, net |  |
Derivative [Line Items] |  |
Number of Contracts | contract | 107 | 93
Aggregate Notional Amount (in thousands) | $ | $ 500,901 | $ 428,493
Weighted-Average Years to Maturity | 2 years 1 month 13 days | 2 years 14 days
Fx contracts - EUR | Foreign currency forward, net |  |
Derivative [Line Items] |  |
Number of Contracts | contract | 66 | 69
Aggregate Notional Amount (in thousands) | $ | $ 237,519 | $ 239,466
Weighted-Average Years to Maturity | 2 years 4 months 13 days | 2 years 7 months 9 days
Kronor | Foreign currency forward, net |  |
Derivative [Line Items] |  |
Number of Contracts | contract | 20 |
Aggregate Notional Amount (in thousands) | $ | $ 604,372 |
Weighted-Average Years to Maturity | 4 years 25 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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- Definition The number of derivative instruments of a particular group held by the entity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -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 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -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 + Details
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