Settlement Assets and Obligations - Schedule of Settlement Assets and Obligations (Details) - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023	Mar. 31, 2023
Settlement assets:
Cash and cash equivalents	$ 412.4	$ 496.0	$ 737.1
Receivables from agents and others	1,832.2	1,748.3
Less: Allowance for credit losses	(11.9)	(15.4)
Receivables from agents and others, net	1,820.3	1,732.9
Investment securities	1,403.0	1,458.2
Less: Allowance for credit losses	(0.1)	(0.1)
Investment securities, net	1,402.9	1,458.1
Total settlement assets	3,635.6	3,687.0
Settlement obligations:
Money transfer, money order, and payment service payables	2,940.7	2,764.5
Payables to agents	694.9	922.5
Total settlement obligations	$ 3,635.6	$ 3,687.0

Amount, before allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business.

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Cash received or short term receivables for unsettled money transfers, money orders, consumer payments, or business to business payments, including classified as assets attributable to disposal group held for sale or disposed of. Settlement assets include clearing and settling customers payments due to and from financial institutions and may include cash and cash equivalents.

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This item represents the portion of total settlement assets comprised of investment securities.

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Amounts payable for money transfers, money orders, and consumer payment service arrangements, including classified as liabilities attributable to disposal group held for sale or disposed of. Settlement liabilities include amounts payable to intermediaries for global payment transfers.

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Settlement Obligations.

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