Goodwill and Intangible Assets - Gross carrying amount and accumulated amortization of the company's intangible assets other than goodwill (Details) - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Intangible asset balances by major asset class
Intangible assets, gross (excluding goodwill)	$ 167.6	$ 169.7
Finite-lived intangible assets, amortization amount	(44.3)	(44.1)
Intangible assets, book value	123.3	125.6
Indefinite-lived Intangible Assets
Intangible asset balances by major asset class
Intangible assets, gross (excluding goodwill)	105.4	106.9
Finite-lived intangible assets, amortization amount	0.0	0.0
Intangible assets, book value	105.4	106.9
Indefinite-lived Intangible Assets | Distribution Network
Intangible asset balances by major asset class
Indefinite-lived intangible assets, book value	14.1	14.3
Finite-lived intangible assets, amortization amount	0.0	0.0
Indefinite-lived Intangible Assets | Trademarks and Tradenames
Intangible asset balances by major asset class
Indefinite-lived intangible assets, book value	91.3	92.6
Finite-lived intangible assets, amortization amount	0.0	0.0
Finite-Lived Intangible Assets
Intangible asset balances by major asset class
Finite-lived intangible assets, carrying amount	62.2	62.8
Finite-lived intangible assets, amortization amount	(44.3)	(44.1)
Finite-lived intangible assets, book value	17.9	18.7
Finite-Lived Intangible Assets | Customer Relationships
Intangible asset balances by major asset class
Finite-lived intangible assets, carrying amount	26.4	26.5
Finite-lived intangible assets, amortization amount	(12.0)	(11.6)
Finite-lived intangible assets, book value	14.4	14.9
Finite-Lived Intangible Assets | Patents
Intangible asset balances by major asset class
Finite-lived intangible assets, carrying amount	28.8	29.2
Finite-lived intangible assets, amortization amount	(28.4)	(28.8)
Finite-lived intangible assets, book value	0.4	0.4
Finite-Lived Intangible Assets | Noncompetition Agreements
Intangible asset balances by major asset class
Finite-lived intangible assets, carrying amount	4.2	4.2
Finite-lived intangible assets, amortization amount	(2.2)	(2.0)
Finite-lived intangible assets, book value	2.0	2.2
Finite-Lived Intangible Assets | Other Intangibles
Intangible asset balances by major asset class
Finite-lived intangible assets, carrying amount	0.6	0.7
Finite-lived intangible assets, amortization amount	(0.6)	(0.7)
Finite-lived intangible assets, book value	0.0	0.0
Finite-Lived Intangible Assets | Trademarks and Tradenames
Intangible asset balances by major asset class
Finite-lived intangible assets, carrying amount	2.2	2.2
Finite-lived intangible assets, amortization amount	(1.1)	(1.0)
Finite-lived intangible assets, book value	$ 1.1	$ 1.2