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Financial Instruments - Summary of Designated and Non-designated Cash Flow Hedges (Details) - USD ($) $ in Millions | 9 Months Ended |
--- | --- | ---
Sep. 30, 2023 | Dec. 31, 2022
Derivative Financial Instruments |  |
Investment grade bonds | $ 19.7 | $ 19.8
Cash |  |
Derivative Financial Instruments |  |
Deferred compensation, Rabbi Trust | 4.3 | 4.0
Short-term Investments |  |
Derivative Financial Instruments |  |
Deferred compensation, Rabbi Trust | 10.6 | 8.1
Foreign Exchange Forward | Designated hedges |  |
Derivative Financial Instruments |  |
Fair value | 0.0 | 0.7
Notional Value | $ 15.7 | 17.5
Foreign Exchange Forward | Designated hedges | Cash Flow Hedging |  |
Derivative Financial Instruments |  |
Maturity term (less than) | 1 year |
Foreign Exchange Forward | Non-designated hedges |  |
Derivative Financial Instruments |  |
Fair value | $ 0.3 | (0.2)
Notional Value | $ 51.4 | $ 49.1
Maturity term (less than) | 1 year |

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- Definition Aggregate carrying value as of the balance sheet date of the liabilities for deferred compensation arrangements. Represents currently earned compensation under cash arrangements (such as a profit-sharing plan, rabbi trust, and employee contract--excluding equity-based arrangements) that is not actually paid until a later date. + References No definition available. + Details
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- Definition Fair value of the assets less the liabilities of a derivative or group of derivatives. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 825 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 10 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482907/825-10-50-10 + Details
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