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Intangible Assets and Liabilities (Tables) | 3 Months Ended
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Mar. 31, 2023
Intangible Assets, Net (Excluding Goodwill) [Abstract] |
Schedule of Intangible Assets by Major Class | The gross carrying amount and accumulated amortization (accretion) of our intangible assets and liabilities, other than goodwill, were as follows:
| March 31, 2023 |  | December 31, 2022
In thousands | Gross |  | Accumulated (Amortization) Accretion |  | Net |  | Gross |  | Accumulated (Amortization) Accretion |  | Net
Intangible Assets |  |  |  |  |  |  |  |  |  |  |
Core-developed technology | $ | 500,000 |  |  | $ | (495,338) |  |  | $ | 4,662 |  |  | $ | 498,601 |  |  | $ | (492,782) |  |  | $ | 5,819 |
Customer contracts and relationships | 325,346 |  |  | (272,107) |  |  | 53,239 |  |  | 322,360 |  |  | (265,503) |  |  | 56,857 |
Trademarks and trade names | 72,699 |  |  | (70,727) |  |  | 1,972 |  |  | 72,156 |  |  | (70,101) |  |  | 2,055 |
Other | 12,018 |  |  | (11,839) |  |  | 179 |  |  | 12,017 |  |  | (11,807) |  |  | 210 |
Total intangible assets | $ | 910,063 |  |  | $ | (850,011) |  |  | $ | 60,052 |  |  | $ | 905,134 |  |  | $ | (840,193) |  |  | $ | 64,941 |
Intangible Liabilities |  |  |  |  |  |  |  |  |  |  |
Customer contracts and relationships | $ | (23,900) |  |  | $ | 23,900 |  |  | $ | — |  |  | $ | (23,900) |  |  | $ | 23,900 |  |  | $ | — |
Summary of Intangible Asset Account Activity | A summary of intangible assets and liabilities activity is as follows:
| Three Months Ended March 31,
In thousands | 2023 |  | 2022
Intangible assets, gross beginning balance | $ | 905,134 |  |  | $ | 928,422 |
Effect of change in exchange rates | 4,929 |  |  | (5,578) |
Intangible assets, gross ending balance | $ | 910,063 |  |  | $ | 922,844 |
Intangible liabilities, gross beginning balance | $ | (23,900) |  |  | $ | (23,900) |
Effect of change in exchange rates | — |  |  | — |
Intangible liabilities, gross ending balance | $ | (23,900) |  |  | $ | (23,900) |
Schedule of Intangible Assets, Future Amortization Expense | Estimated future annual amortization is as follows:
Year Ending December 31, |  | Estimated Annual Amortization |  |  |  |
In thousands |  |
2023 (amount remaining at March 31, 2023) |  | $ | 13,955 |  |  |  |  |
2024 |  | 15,080 |  |  |  |  |
2025 |  | 14,342 |  |  |  |  |
2026 |  | 10,329 |  |  |  |  |
2027 |  | 5,630 |  |  |  |  |
Thereafter |  | 716 |  |  |  |  |
Total intangible assets subject to amortization |  | $ | 60,052 |  |  |  |  |

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