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Settlement Assets and Obligations - Narrative (Details) - USD ($) $ in Millions | 9 Months Ended |
--- | --- | ---
Sep. 30, 2023 | Dec. 31, 2022
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Receivables from agents, business solutions customers, and others, net | $ 1,613.3 | $ 1,520.2
Variable rate demand notes, maximum maturity year | 2052 |
Due after 10 years | $ 247.6 |
Other Assets |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Advances to agents | 177.8 | 154.9
Receivables from agents and others |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Receivables from agents, business solutions customers, and others, net | 1,613.3 | 1,508.5
Receivables from Business Solutions customers |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Receivables from agents, business solutions customers, and others, net |  | $ 11.7
State and municipal variable-rate demand notes |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Due after 10 years | $ 48.3 |

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