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Intangible Assets and Liabilities Gross Carrying Amount and Accumulated Amortization (Details) - USD ($) $ in Thousands | Mar. 31, 2024 | Dec. 31, 2023 | Mar. 31, 2023 | Dec. 31, 2022
--- | --- | --- | --- | ---
Intangible Assets [Line Items] |  |  |  |
Intangible assets, Accumulated (Amortization) Accretion | $ (868,896) | $ (870,896) |  |
Intangible assets, Net | 57,123 |  |  |
Intangible assets, Gross | 926,019 | 917,178 | $ 910,063 | $ 905,134
Intangible assets, Net | 57,123 | 46,282 |  |
Intangible liabilities, Gross | (23,900) | (23,900) | $ (23,900) | $ (23,900)
Intangible liabilities, Accumulated (Amortization) Accretion | 23,900 | 23,900 |  |
Intangible liabilities, Net | 0 | 0 |  |
Core-developed technology [Member] |  |  |  |
Intangible Assets [Line Items] |  |  |  |
Intangible assets, Gross | 512,787 | 502,010 |  |
Intangible assets, Accumulated (Amortization) Accretion | (498,434) | (499,571) |  |
Intangible assets, Net | 14,353 | 2,439 |  |
Customer contracts and relationships [Member] |  |  |  |
Intangible Assets [Line Items] |  |  |  |
Intangible assets, Gross | 328,438 | 329,688 |  |
Intangible assets, Accumulated (Amortization) Accretion | (287,386) | (287,653) |  |
Intangible assets, Net | 41,052 | 42,035 |  |
Trademarks and trade names [Member] |  |  |  |
Intangible Assets [Line Items] |  |  |  |
Intangible assets, Gross | 72,775 | 73,461 |  |
Intangible assets, Accumulated (Amortization) Accretion | (71,130) | (71,740) |  |
Intangible assets, Net | 1,645 | 1,721 |  |
Other Intangible Assets [Member] |  |  |  |
Intangible Assets [Line Items] |  |  |  |
Intangible assets, Gross | 12,019 | 12,019 |  |
Intangible assets, Accumulated (Amortization) Accretion | (11,946) | (11,932) |  |
Intangible assets, Net | $ 73 | $ 87 |  |

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