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Derivative Contracts - Fair Value of Derivative Instruments (Details) - USD ($) $ in Millions | Dec. 31, 2024 | Dec. 31, 2023
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Not Designated as Hedging Instrument | Foreign exchange contracts |  |
Derivatives, Fair Value [Line Items] |  |
Derivative, Notional Amount | $ 1,586.9 | $ 1,802.9
Cash collateral | 0.8 | 3.4
Not Designated as Hedging Instrument | Derivative assets | Foreign exchange contracts |  |
Derivatives, Fair Value [Line Items] |  |
Fair Value | 17.0 | 31.4
Derivative, Notional Amount | 550.0 | 1,262.1
Not Designated as Hedging Instrument | Derivative liabilities | Foreign exchange contracts |  |
Derivatives, Fair Value [Line Items] |  |
Fair Value | (41.7) | (9.3)
Derivative, Notional Amount | 1,036.9 | 540.8
Not Designated as Hedging Instrument | Derivative liabilities | Embedded Derivative Financial Instruments |  |
Derivatives, Fair Value [Line Items] |  |
Fair Value | (3.6) | (16.5)
Derivative, Notional Amount | 0.0 | 0.0
Designated as Hedging Instrument | Foreign exchange contracts |  |
Derivatives, Fair Value [Line Items] |  |
Cash collateral | 2.0 | 0.0
Designated as Hedging Instrument | Derivative assets | Foreign exchange contracts |  |
Derivatives, Fair Value [Line Items] |  |
Fair Value | 0.0 | 0.3
Derivative, Notional Amount | 0.0 | 76.9
Designated as Hedging Instrument | Derivative liabilities | Foreign exchange contracts |  |
Derivatives, Fair Value [Line Items] |  |
Fair Value | (4.2) | 0.0
Derivative, Notional Amount | $ 158.0 | $ 0.0

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- Definition The aggregate fair value of assets that are already posted, at the end of the reporting period, as collateral for derivative instruments with credit-risk-related contingent features. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4H -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4H + Details
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- Definition Fair values as of the balance sheet date of the net amount of all assets and liabilities resulting from contracts that meet the criteria of being accounted for as derivative instruments. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 5 -SubTopic 10 -Topic 815 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480463/815-10-45-5 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (bbb)(2)(i) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (bbb)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (bbb)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 + 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 -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1B -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-1B Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1A -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-1A + Details
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