Goodwill and Intangible Assets - Balances of Acquired Intangible Assets, Excluding Goodwill (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021
Finite-Lived Intangible Assets [Line Items]
Original cost	$ 191.1	$ 202.7
Accumulated amortization	(114.7)	(104.7)
Carrying amount	76.4	98.0
Customer Lists
Finite-Lived Intangible Assets [Line Items]
Original cost	146.6	155.4
Accumulated amortization	(87.5)	(80.0)
Carrying amount	$ 59.1	$ 75.4
Weighted-average original life (in years)	15 years	15 years
Trade Names
Finite-Lived Intangible Assets [Line Items]
Original cost	$ 28.6	$ 30.3
Accumulated amortization	(15.9)	(13.9)
Carrying amount	$ 12.7	$ 16.4
Weighted-average original life (in years)	11 years	11 years
Technology
Finite-Lived Intangible Assets [Line Items]
Original cost	$ 15.9	$ 17.0
Accumulated amortization	(11.3)	(10.8)
Carrying amount	$ 4.6	$ 6.2
Weighted-average original life (in years)	11 years	11 years

Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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-Name Accounting Standards Codification
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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
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 30
-Section 50
-Paragraph 2
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
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- Definition

Amount before 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
-Publisher FASB
-Name Accounting Standards Codification
-Topic 928
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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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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.

+ References

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-Publisher FASB
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