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Supplemental Information - Other Assets (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Deferred financing charges	$ 5.1	$ 3.0
Capitalized software, net	46.4	36.0
Land-use rights	4.6	5.1
Planned major maintenance activities	4.3	3.2
Deferred software as a service	4.0	3.2
Deferred compensation plan assets (Note 5)	14.4	14.9
Net investment hedge (Note 9)	0.0	2.0
Finance lease assets, net (Note 13)	0.1	0.3
Other	6.6	6.5
Other assets	$ 85.5	$ 74.2

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Deferred Software as a Service

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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
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 20
-Section 50
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Carrying amount as of the balance sheet date of assets held under deferred compensation agreements.

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-Publisher FASB
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-Topic 210
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-Section S99
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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.

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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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Sum of the carrying amounts as of the balance sheet date of amounts paid in advance for expenses which will be charged against earnings in periods after one year or beyond the operating cycle, if longer.

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