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Supplemental Information - Other Assets (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Deferred financing charges	$ 2.8	$ 3.9
Capitalized software, net	40.9	44.8
Land-use rights	4.2	4.4
Deferred software as a service	2.2	2.8
Deferred compensation plan assets (Note 5)	20.2	17.9
Interest rate swap contracts (Note 9)	0.6	0.0
Finance lease assets, net (Note 13)	0.0	0.1
Other	8.4	8.0
Other assets	$ 79.3	$ 81.9

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- Definition

Deferred Software As A Service, Noncurrent

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- Definition

Finance Lease, Right-of-Use Asset, after Accumulated Amortization, Noncurrent

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- Definition

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- Definition

The carrying amount of capitalized computer software costs net of accumulated amortization as of the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 985
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481283/985-20-50-1

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- Definition

Carrying amount as of the balance sheet date of assets held under deferred compensation agreements.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(17))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

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- Definition

Amount of issuance costs recognized in a share-lending arrangement entered into by the entity, in contemplation of a convertible debt offering or other financing, before deduction of accumulated amortization or effects of subsequent adjustments.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-Section 50
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-Subparagraph (f)
-Publisher FASB
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Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, expected to be settled after one year or the normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 210
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
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Amount of other miscellaneous assets expected to be realized or consumed after one year or normal operating cycle, if longer.

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- Definition

Amount of noncurrent assets classified as other.

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-Topic 210
-SubTopic 10
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-Paragraph 1
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