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Goodwill and Other Intangible Assets - Other Intangible Assets by Major Class (Details) - USD ($) $ in Millions | Sep. 30, 2023 | Dec. 31, 2022
--- | --- | ---
Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Value | $ 496.6 | $ 487.5
Non-amortized trademarks | 132.0 | 134.1
Total other intangible assets | 628.6 | 621.6
Accumulated Amortization | (365.6) | (346.0)
Net Carrying Value | 131.0 | 141.5
Non-amortized trademarks | 132.0 | 134.1
Total other intangible assets | 263.0 | 275.6
Customer relationships |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Value | 211.3 | 212.1
Accumulated Amortization | (159.1) | (150.8)
Net Carrying Value | 52.2 | 61.3
Developed technology |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Value | 35.9 | 35.8
Accumulated Amortization | (28.7) | (26.0)
Net Carrying Value | 7.2 | 9.8
Internally developed software |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Value | 187.3 | 179.6
Accumulated Amortization | (145.3) | (137.2)
Net Carrying Value | 42.0 | 42.4
Patents |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Value | 50.9 | 48.4
Accumulated Amortization | (26.1) | (25.6)
Net Carrying Value | 24.8 | 22.8
Trademarks |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Value | 3.8 | 3.9
Accumulated Amortization | (2.4) | (2.4)
Net Carrying Value | 1.4 | 1.5
Other |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Value | 7.4 | 7.7
Accumulated Amortization | (4.0) | (4.0)
Net Carrying Value | $ 3.4 | $ 3.7

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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(16)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482665/350-30-50-2 + Details
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