Fair Value - Schedule of Fair Value Hierarchy for Those Assets and Liabilities on the Consolidated Balance Sheets Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Assets and Liabilities Measured at Fair Value on a recurring basis
Restricted cash	$ 0.4	$ 0.4
Fair Value, Recurring
Assets and Liabilities Measured at Fair Value on a recurring basis
Restricted cash	0.4	0.4
Short-term investments	15.9	31.6
Foreign currency forward contracts	4.9	3.3
Total Assets	394.4	454.2
Foreign currency forward contracts	10.4	11.4
Total Liabilities	10.4	11.4
Fair Value, Recurring \| Level 1, 2 and 3
Assets and Liabilities Measured at Fair Value on a recurring basis
Cash and cash equivalents	343.1	384.4
Fair Value, Recurring \| Level 1
Assets and Liabilities Measured at Fair Value on a recurring basis
Cash and cash equivalents	341.8	381.0
Restricted cash	0.4	0.4
Short-term investments	0.0	0.0
Foreign currency forward contracts	0.0	0.0
Total Assets	342.2	381.4
Foreign currency forward contracts	0.0	0.0
Total Liabilities	0.0	0.0
Fair Value, Recurring \| Level 2
Assets and Liabilities Measured at Fair Value on a recurring basis
Cash and cash equivalents	1.3	3.4
Restricted cash	0.0	0.0
Short-term investments	15.9	31.6
Foreign currency forward contracts	4.9	3.3
Total Assets	22.1	38.3
Foreign currency forward contracts	10.4	11.4
Total Liabilities	10.4	11.4
Fair Value, Recurring \| Level 3
Assets and Liabilities Measured at Fair Value on a recurring basis
Cash and cash equivalents	0.0	0.0
Restricted cash	0.0	0.0
Short-term investments	0.0	0.0
Foreign currency forward contracts	0.0	0.0
Total Assets	0.0	0.0
Foreign currency forward contracts	0.0	0.0
Total Liabilities	0.0	0.0
Fair Value, Recurring \| Fair Value Measured at Net Asset Value Per Share
Assets and Liabilities Measured at Fair Value on a recurring basis
Cash and cash equivalents	$ 30.1	$ 34.5

Fair value portion of asset recognized for present right to economic benefit.

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Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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Fair value portion of asset contracts related to the exchange of different currencies, including, but not limited to, foreign currency options, forward contracts, and swaps.

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Fair value portion of liability contracts related to the exchange of different currencies, including, but not limited to, foreign currency options, forward (delivery or nondelivery) contracts, and swaps entered into.

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Fair value portion of investment securities, including, but not limited to, marketable securities, derivative financial instruments, and investments accounted for under the equity method.

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Fair value of financial and nonfinancial obligations.

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Amount of cash and cash equivalents restricted as to withdrawal or usage, classified as current. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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