Fair value, after effect of master netting arrangement, of financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and contract can be net settled by means outside contract or delivery of asset. Includes derivative subject to master netting arrangement not elected or qualified to offset. Excludes derivative not subject to master netting arrangement or similar agreement.

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Fair value of financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and contract can be net settled by means outside contract or delivery of asset, subject to master netting arrangement or similar agreement and not elected or qualified to offset, deducted from derivative asset.

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Average remaining period until maturity of the derivative contract, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Fair value, after effect of master netting arrangement, of financial liability or contract with one or more underlyings, notional amount or payment provision or both, and contract can be net settled by means outside contract or delivery of asset. Includes derivative subject to master netting arrangement not elected or qualified to offset. Excludes derivative not subject to master netting arrangement or similar agreement.

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Fair value of financial liability or contract with one or more underlyings, notional amount or payment provision or both, and contract can be net settled by means outside contract or delivery of asset, subject to master netting arrangement or similar agreement and not elected or qualified to offset, deducted from derivative liability.

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- Definition

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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Period remaining until the derivative contract matures, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The estimated net amount of unrealized gains or losses on foreign currency cash flow hedges at the reporting date expected to be reclassified to earnings within the next 12 months.

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Maximum amount of time remaining before foreign currency exchange rate derivatives mature or expire, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Derivative contract maturity period, maximum, per the Company's policy.

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Represents revenue based on the difference between the exchange rate set by the Company to the customer and the rate at which the Company or its agents are able to acquire currency.

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Derivatives - Narrative (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Derivatives - Narrative (Details) - USD ($) $ in Millions	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Derivatives
Accumulated other comprehensive pre-tax gain (loss) to be reclassified into revenue within the next 12 months		$ 0.3
Business Solutions
Derivatives
Foreign exchange revenues	$ 13.5		$ 27.8
Foreign currency contracts
Derivatives
Offsetting of derivative assets subject to a master netting arrangement or similar agreement				$ 7.3
Derivative asset, subject to master netting arrangement, deduction of financial instrument not offset		3.3
Derivative liability, subject to master netting arrangement, deduction of financial instrument not offset		$ 3.3
Offsetting of derivative liabilities subject to a master netting arrangement or similar agreement				$ 7.3
Designated as hedges \| Foreign currency contracts
Derivatives
Derivative policy - contract maturity period maximum		36 months
Derivative policy - targeted weighted-average maturity		1 year
Maximum remaining maturity of foreign currency derivatives		24 months
Derivative weighted-average maturity		1 year
Minimum \| Not designated as hedges \| Uncollected Settlement Assets and Obligations
Derivatives
Foreign currency forward contracts maturity range		2 days
Maximum \| Not designated as hedges \| Uncollected Settlement Assets and Obligations
Derivatives
Foreign currency forward contracts maturity range		1 month
Maximum \| Not designated as hedges \| Foreign Currency Denominated Cash and Other Asset and Other Liability Positions
Derivatives
Foreign currency forward contracts maturity range		1 year