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Goodwill and Other Intangible Assets - Gross Carrying Amount and Accumulated Amortization (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Gross Carrying Value	$ 130.3	$ 113.0
Accumulated Amortization	(34.4)	(31.9)
Net Carrying Value	95.9	81.1
Indefinite-lived intangible assets	82.8	72.4
Total intangible assets, gross carrying value	213.1	185.4
Total intangible assets, net	$ 178.7	153.5
Finite-lived intangible asset, useful life	12 years
Trade names
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Indefinite-lived intangible assets	$ 82.8	72.4
Customer relationships
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Gross Carrying Value	125.5	108.6
Accumulated Amortization	(32.0)	(29.6)
Net Carrying Value	$ 93.5	79.0
Finite-lived intangible asset, useful life	12 years
Other
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items]
Gross Carrying Value	$ 4.8	4.4
Accumulated Amortization	(2.4)	(2.3)
Net Carrying Value	$ 2.4	$ 2.1
Finite-lived intangible asset, useful life	7 years

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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.

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

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
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-Publisher FASB
-Name Accounting Standards Codification
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