Settlement Assets and Obligations - Settlement Assets and Obligations (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Settlement assets:
Cash and cash equivalents	$ 553.5	$ 368.2
Receivables from agents and Business Solutions customers	956.9
Less: Allowance for credit losses	(29.6)
Receivables from agents and Business Solutions customers, net	927.3	1,230.1
Investment securities	1,653.8	1,698.4
Total settlement assets	3,134.6	3,296.7
Settlement obligations:
Money transfer, money order, and payment service payables	2,427.7	2,571.5
Payables to agents	706.9	725.2
Total settlement obligations	$ 3,134.6	$ 3,296.7

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

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
-Section 45
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Amount, after 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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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Amount of allowance for credit loss on accounts receivable.

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Cash received or short term receivables for unsettled money transfers, money orders, consumer payments, or business to business payments. 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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Amounts payable for money transfers, money orders, and consumer payment service arrangements. Settlement liabilities include amounts payable to intermediaries for global payment transfers.

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Settlement assets.

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This item represents the portion of total settlement obligations comprised of money transfers, money order and payment service payables.

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This item represents the portion of total settlement obligations comprised of payables to agents.

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