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Goodwill and Other Intangible Assets (Tables) | 12 Months Ended
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Dec. 31, 2023
Goodwill and Other Intangible Assets [Abstract] |
Goodwill Rollforward | The changes in the carrying amount of goodwill by segment for the years ended December 31, 2023 and 2022 were as follows:
|  | MOSFETs |  |  | Optoelectronic Components |  |  | Resistors |  |  | Inductors |  |  | Total |
Balance at December 31, 2021 |  | $ | - |  |  | $ | 96,849 |  |  | $ | 42,605 |  |  | $ | 25,815 |  |  | $ | 165,269 |
MaxPower acquisition |  |  | 36,885 |  |  |  | - |  |  |  | - |  |  |  | - |  |  |  | 36,885 |
Exchange rate effects |  |  | - |  |  |  | - |  |  |  | (722 | ) |  |  | - |  |  |  | (722 | )
Balance at December 31, 2022 |  | $ | 36,885 |  |  | $ | 96,849 |  |  | $ | 41,883 |  |  | $ | 25,815 |  |  | $ | 201,432 |
Centerline acquisition |  |  | - |  |  |  | - |  |  |  | 2,213 |  |  |  | - |  |  |  | 2,213 |
Purchase price allocation adjustment |  |  | (2,639 | ) |  |  | - |  |  |  | - |  |  |  | - |  |  |  | (2,639 | )
Exchange rate effects |  |  | - |  |  |  | - |  |  |  | 410 |  |  |  | - |  |  |  | 410 |
Balance at December 31, 2023 |  | $ | 34,246 |  |  | $ | 96,849 |  |  | $ | 44,506 |  |  | $ | 25,815 |  |  | $ | 201,416 |
Other Intangible Assets | Other intangible assets are as follows:
|  | December 31, 2023 |  |  | December 31, 2022 |
Intangible assets subject to amortization: |  |  |  |  |  |
Patents and acquired technology |  | $ | 26,053 |  |  | $ | 26,988 |
Capitalized software |  |  | 62,360 |  |  |  | 58,735 |
Customer relationships |  |  | 83,895 |  |  |  | 82,816 |
Tradenames |  |  | 22,300 |  |  |  | 22,933 |
Other |  |  | 400 |  |  |  | 400 |
|  |  | 195,008 |  |  |  | 191,872 |
Accumulated amortization: |  |  |  |  |  |  |  |
Patents and acquired technology |  |  | (14,931) |  |  |  | (14,743 | )
Capitalized software |  |  | (54,203) |  |  |  | (53,348 | )
Customer relationships |  |  | (38,664) |  |  |  | (33,021 | )
Tradenames |  |  | (14,610) |  |  |  | (12,731 | )
Other |  |  | (267) |  |  |  | (133 | )
|  |  | (122,675) |  |  |  | (113,976 | )
Net intangible assets subject to amortization |  | $ | 72,333 |  |  | $ | 77,896 |
Estimated Annual Amortization Expense for Each of the Next Five Years | Estimated annual amortization expense of intangible assets on the balance sheet at December 31, 2023 for each of the next five years is as follows:
2024 |  | $ | 9,832 |
2025 |  |  | 9,372 |
2026 |  |  | 8,555 |
2027 |  |  | 6,734 |
2028 |  |  | 5,975 |

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