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Financial Instruments - Marketable Equity Securities (Details) - USD ($) $ in Millions | Dec. 31, 2022 | Dec. 31, 2021
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Investments, All Other Investments [Abstract] |  |
Other current assets | $ 3.6 | $ 3.5
Other long-term assets | 53.6 | 58.8
Marketable equity securities | $ 57.2 | $ 62.3

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- Definition Amount of investment in marketable security. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.4) -URI https://asc.fasb.org/extlink&oid=126897435&loc=d3e534808-122878 + Details
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- Definition Amount of investment in marketable security, classified as noncurrent. + References No definition available. + Details
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