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Note 12 - Goodwill and Other Intangible Assets - Identifiable Intangible Assets (Details) - USD ($) $ in Millions | Dec. 31, 2023 | Dec. 31, 2022
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Finite-lived intangible assets, gross | $ 223.6 | $ 185.0
Less accumulated amortization | (89.7) | (69.1)
Total identifiable intangible assets, net | 133.9 | 115.9
Customer Relationships [Member] |  |
Finite-lived intangible assets, gross | $ 206.3 | 169.0
Weighted average amortization period (Year) | 10 years 8 months 12 days |
Noncompete Agreements [Member] |  |
Finite-lived intangible assets, gross | $ 10.8 | 9.6
Weighted average amortization period (Year) | 6 years |
Trade Names [Member] |  |
Finite-lived intangible assets, gross | $ 6.5 | $ 6.4
Weighted average amortization period (Year) | 2 years 1 month 6 days |

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- Definition Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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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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