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Goodwill and Other Intangible Assets - Intangible assets, net (Details) - USD ($) $ in Millions | Dec. 31, 2025 | Dec. 31, 2024
--- | --- | ---
Intangible Assets [Line Items] |  |
Intangibles with indefinite lives - Trademarks | $ 43.8 | $ 43.8
Intangibles with definite lives, gross | 390.7 | 396.8
Intangibles with definite lives, accumulated amortization | (123.7) | (102.3)
Intangibles with definite lives, net | 267.0 | 294.5
Intangible assets, net | 310.8 | 338.3
Customer relationships |  |
Intangible Assets [Line Items] |  |
Intangibles with definite lives, gross | 167.1 | 169.1
Permits |  |
Intangible Assets [Line Items] |  |
Intangibles with definite lives, gross | 178.1 | 178.1
Other intangible assets |  |
Intangible Assets [Line Items] |  |
Intangibles with definite lives, gross | $ 45.5 | $ 49.6

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- Definition Carrying amount (original costs adjusted for previously recognized amortization and impairment) as of the balance sheet date for the rights acquired through registration of a trademark to gain or protect exclusive use of a business name, symbol or other device or style for a projected indefinite period of benefit. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482665/350-30-50-2 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(15)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 + Details
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