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Intangible Assets and Liabilities Gross Carrying Amount and Accumulated Amortization (Details) - USD ($) $ in Thousands | Sep. 30, 2022 | Dec. 31, 2021 | Sep. 30, 2021 | Dec. 31, 2020
--- | --- | --- | --- | ---
Intangible Assets [Line Items] |  |  |  |
Intangible assets, Accumulated (Amortization) Accretion | $ (810,963) | $ (835,893) |  |
Intangible assets, Net | 70,346 |  |  |
Intangible assets, Gross | 881,309 | 928,422 | $ 978,928 | $ 1,000,037
Intangible assets, Net | 70,346 | 92,529 |  |
Intangible liabilities, Gross | (23,900) | (23,900) | $ (23,900) | $ (23,900)
Intangible liabilities, Accumulated (Amortization) Accretion | 23,785 | 23,441 |  |
Intangible liabilities, Net | (115) | (459) |  |
Core-developed technology [Member] |  |  |  |
Intangible Assets [Line Items] |  |  |  |
Intangible assets, Gross | 491,898 | 505,429 |  |
Intangible assets, Accumulated (Amortization) Accretion | (484,225) | (491,047) |  |
Intangible assets, Net | 7,673 | 14,382 |  |
Customer contracts and relationships [Member] |  |  |  |
Intangible Assets [Line Items] |  |  |  |
Intangible assets, Gross | 307,838 | 336,421 |  |
Intangible assets, Accumulated (Amortization) Accretion | (247,555) | (261,043) |  |
Intangible assets, Net | 60,283 | 75,378 |  |
Trademarks and trade names [Member] |  |  |  |
Intangible Assets [Line Items] |  |  |  |
Intangible assets, Gross | 69,562 | 74,551 |  |
Intangible assets, Accumulated (Amortization) Accretion | (67,416) | (72,133) |  |
Intangible assets, Net | 2,146 | 2,418 |  |
Other Intangible Assets [Member] |  |  |  |
Intangible Assets [Line Items] |  |  |  |
Intangible assets, Gross | 12,011 | 12,021 |  |
Intangible assets, Accumulated (Amortization) Accretion | (11,767) | (11,670) |  |
Intangible assets, Net | $ 244 | $ 351 |  |

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