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Summary of Significant Accounting Policies - Intangible Assets (Details) | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Finite-Lived Intangible Assets [Line Items] |  |  |
Product development expenditures as percentage of total revenue | 7.00% | 6.00% | 8.00%
Customer relationships | Minimum |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Useful lives (in years) | 10 years |  |
Customer relationships | Maximum |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Useful lives (in years) | 20 years |  |
Acquired software and technology | Minimum |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Useful lives (in years) | 4 years |  |
Acquired software and technology | Maximum |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Useful lives (in years) | 10 years |  |
Trade names | Minimum |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Useful lives (in years) | 8 years |  |
Trade names | Maximum |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Useful lives (in years) | 20 years |  |
Non-Compete Agreement | Minimum |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Useful lives (in years) | 4 years |  |
Non-Compete Agreement | Maximum |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Useful lives (in years) | 5 years |  |
Purchased software | Minimum |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Useful lives (in years) | 3 years |  |
Purchased software | Maximum |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Useful lives (in years) | 5 years |  |
Capitalized software and other intangibles |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Useful lives (in years) | 5 years |  |
Merchant portfolios | Minimum |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Useful lives (in years) | 5 years |  |
Merchant portfolios | Maximum |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Useful lives (in years) | 9 years |  |

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- Definition Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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