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Supplemental balance sheet and cash flow information (goodwill) (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2024 | Mar. 31, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023 | Dec. 31, 2023
Goodwill [Roll Forward] |  |  |  |  |  |  |
Goodwill, beginning of year |  |  | $ 1,430,590 |  | $ 1,430,590 |  |
Asset impairment charge (Note 6) |  | $ (6,700) | 0 | $ 0 | (6,700) | $ 0 |
Currency translation adjustment |  |  |  |  | (29) |  |
Goodwill, end of period |  | 1,423,861 |  |  | 1,423,861 |  |
Operating segments [Member] | Merchant Services [Member] |  |  |  |  |  |  |
Goodwill [Roll Forward] |  |  |  |  |  |  |
Goodwill, beginning of year |  |  | 727,688 |  | 727,688 |  |
Goodwill, end of period |  | 727,688 |  |  | 727,688 |  |
Operating segments [Member] | B2B Payments [Member] |  |  |  |  |  |  |
Goodwill [Roll Forward] |  |  |  |  |  |  |
Goodwill, beginning of year |  |  | 160,431 |  | 160,431 |  |
Goodwill, end of period |  | 160,431 |  |  | 160,431 |  |
Operating segments [Member] | Data Solutions [Member] |  |  |  |  |  |  |
Goodwill [Roll Forward] |  |  |  |  |  |  |
Goodwill, beginning of year |  |  | 40,804 |  | 40,804 |  |
Goodwill, end of period | [1] | 40,804 |  |  | 40,804 |  |
Goodwill accumulated impairment charges |  | 145,584 |  |  | 145,584 |  | $ 145,584
Operating segments [Member] | Print [Member] |  |  |  |  |  |  |
Goodwill [Roll Forward] |  |  |  |  |  |  |
Goodwill, beginning of year |  |  | 493,924 |  | 493,924 |  |
Currency translation adjustment |  |  |  |  | (29) |  |
Goodwill, end of period | [1] | 493,895 |  |  | 493,895 |  |
Goodwill accumulated impairment charges |  | 193,699 |  |  | 193,699 |  | $ 193,699
Operating segments [Member] | All Other [Member] |  |  |  |  |  |  |
Goodwill [Roll Forward] |  |  |  |  |  |  |
Goodwill, beginning of year |  |  | $ 7,743 |  | 7,743 |  |
Asset impairment charge (Note 6) |  |  |  |  | (6,700) |  |
Goodwill, end of period | [1] | 1,043 |  |  | 1,043 |  |
Goodwill accumulated impairment charges |  | $ 6,700 |  |  | $ 6,700 |  |
[1] | (1) The Data Solutions and Print balances are net of accumulated impairment charges of $145,584 and $193,699, respectively, for each period. All Other is net of accumulated impairment charges of $6,700 as of September 30, 2024

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