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Income Taxes (Schedule of Deferred Tax Assets and Liabilities) (Details) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | --- | --- | ---
Deferred tax assets relating to: |  |  |  |
Capitalized R&D and software costs | $ 47,351 | $ 12,166 |  |
Federal, state and foreign tax credits | 39,260 | 50,194 |  |
Stock-based compensation | 24,717 | 21,166 |  |
Operating leases | 12,867 | 14,024 |  |
Federal and state and foreign net operating loss carryforwards | 7,061 | 10,369 |  |
Deferred revenue | 5,992 | 1,820 |  |
Allowance for credit losses | 1,702 | 1,803 |  |
Intangible assets | 1,050 | 561 |  |
Accrued bonuses | 314 | 455 |  |
Other | 2,982 | 6,293 |  |
Total deferred tax assets | 143,296 | 118,851 |  |
Deferred tax liabilities relating to: |  |  |  |
Intangible assets | (160,172) | (161,836) |  |
Costs of obtaining contracts | (13,870) | (16,287) |  |
Operating leases | (9,865) | (11,721) |  |
Fixed assets | (5,833) | (9,827) |  |
Other | (8,342) | (9,016) |  |
Total deferred tax liabilities | (198,082) | (208,687) |  |
Valuation allowance | (37,862) | (34,769) | $ (31,974) | $ (29,184)
Net deferred tax liability | $ (92,648) | $ (124,605) |  |

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