Intangible Assets, Goodwill and Other (Tables)
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3 Months Ended |
Mar. 31, 2021 |
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| Goodwill and Intangible Assets Disclosure [Abstract] |
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| Schedule Of Identifiable Intangible Assets [Table Text Block] |
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(in thousands) |
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March 31, 2021 |
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December 31, 2020 |
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March 31, 2020 |
| Intangible assets subject to amortization: |
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| Patents and purchased technology |
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$ |
14,198 |
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$ |
14,198 |
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14,198 |
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| Customer relationships |
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23,000 |
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23,000 |
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23,000 |
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| Gross carrying amount |
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37,198 |
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37,198 |
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37,198 |
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| Accumulated amortization: |
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| Patents and purchased technology |
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(14,198) |
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(14,198) |
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(13,644) |
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| Customer relationships |
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(17,775) |
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(17,363) |
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(16,125) |
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| Accumulated amortization |
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(31,973) |
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(31,561) |
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(29,769) |
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| Net carrying amount |
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5,225 |
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5,637 |
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7,429 |
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| Intangible assets not subject to amortization |
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97,921 |
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97,921 |
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115,421 |
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| Intangible assets, net |
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$ |
103,146 |
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$ |
103,558 |
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$ |
122,850 |
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| Schedule of Finite-Lived Intangible Assets, Future Amortization Expense |
The following table presents the estimated annual amortization expense for the years 2021 through 2025:
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| 2021 |
$ |
1,650 |
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| 2022 |
1,650 |
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| 2023 |
1,650 |
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| 2024 |
688 |
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| 2025 |
— |
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| Schedule of Intangible Assets and Goodwill |
Intangible assets, net consisted of the following:
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(in thousands) |
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March 31, 2021 |
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December 31, 2020 |
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March 31, 2020 |
| Intangible assets subject to amortization: |
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| Patents and purchased technology |
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$ |
14,198 |
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$ |
14,198 |
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14,198 |
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| Customer relationships |
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23,000 |
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23,000 |
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23,000 |
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| Gross carrying amount |
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37,198 |
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37,198 |
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37,198 |
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| Accumulated amortization: |
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| Patents and purchased technology |
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(14,198) |
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(14,198) |
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(13,644) |
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| Customer relationships |
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(17,775) |
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(17,363) |
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(16,125) |
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| Accumulated amortization |
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(31,973) |
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(31,561) |
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(29,769) |
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| Net carrying amount |
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5,225 |
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5,637 |
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7,429 |
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| Intangible assets not subject to amortization |
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97,921 |
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97,921 |
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115,421 |
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| Intangible assets, net |
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$ |
103,146 |
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$ |
103,558 |
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$ |
122,850 |
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