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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

Intangible Assets

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Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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- Definition

Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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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.

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Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges.

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