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Condensed Consolidated Financial Statements - Narrative (Details) - USD ($) $ in Thousands	1 Months Ended		3 Months Ended
	Mar. 31, 2025	Jul. 31, 2019	Mar. 31, 2025	Mar. 31, 2024	Dec. 31, 2024
Condensed Financial Statements, Captions [Line Items]
Amount of off balance sheet settlement funds	$ 224,100		$ 224,100		$ 267,000
Goodwill	1,226,026		1,226,026		1,226,026
Proceeds from sale of equity investment			46,021	$ 0
Gain on sale of equity method investment			25,927	$ 0
Payment Software
Condensed Financial Statements, Captions [Line Items]
Goodwill	809,000		809,000
Biller
Condensed Financial Statements, Captions [Line Items]
Goodwill	$ 417,000		417,000
India Payment Technology and Services Company
Condensed Financial Statements, Captions [Line Items]
Payments to acquire investment interest		$ 18,300
Percentage of voting interests acquired		30.00%
Percentage of interest sold in equity investment	30.00%
Proceeds from sale of equity investment	$ 46,000
Gain on sale of equity method investment	$ 25,900		$ 25,900
India Payment Technology and Services Company | Other Noncurrent Assets
Condensed Financial Statements, Captions [Line Items]
Equity method investment, amount recorded					18,600
Level 2 | Senior Notes | 5.750% Senior Notes due 2026
Condensed Financial Statements, Captions [Line Items]
Stated interest rate (as a percent)	5.75%		5.75%
Fair value of long-term debt	$ 401,700		$ 401,700		$ 399,200

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