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Financial Instruments (Details) - USD ($) $ in Millions | 3 Months Ended |
--- | --- | ---
Mar. 31, 2022 | Dec. 31, 2021
Derivative Financial Instruments |  |
Investment grade bonds | $ 19.8 | $ 30.3
Cash |  |
Derivative Financial Instruments |  |
Deferred compensation, Rabbi Trust | 5.5 | 5.7
Short-term Investments |  |
Derivative Financial Instruments |  |
Deferred compensation, Rabbi Trust | 9.0 | 8.1
Foreign Exchange Forward | Designated hedges |  |
Derivative Financial Instruments |  |
Fair value | 2.1 | 2.7
Notional value | $ 90.7 | 127.6
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 | $ (0.1) | 0.2
Notional value | $ 82.5 | $ 82.5
Maturity term (less than) | 1 year |

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