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Goodwill and Other Intangible Assets (Summary of Amortization Expense) (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Amortization of Intangible Assets Acquired by Income Statement Location [Line Items] |  |  |
Amortization | $ 55,602 | $ 51,417 | $ 37,039
Cost of recurring [Member] |  |  |
Amortization of Intangible Assets Acquired by Income Statement Location [Line Items] |  |  |
Amortization | 51,079 | 47,085 | 33,132
Cost of one-time services and other [Member] |  |  |
Amortization of Intangible Assets Acquired by Income Statement Location [Line Items] |  |  |
Amortization | 1,384 | 1,407 | 1,680
Total included in cost of revenue [Member] |  |  |
Amortization of Intangible Assets Acquired by Income Statement Location [Line Items] |  |  |
Amortization | 52,463 | 48,492 | 34,812
Included in operating expenses [Member] |  |  |
Amortization of Intangible Assets Acquired by Income Statement Location [Line Items] |  |  |
Amortization | $ 3,139 | $ 2,925 | $ 2,227

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