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Goodwill and Intangible Assets (Tables) | 9 Months Ended
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Oct. 02, 2020
Goodwill And Intangible Assets Disclosure [Abstract] |
Summary of Changes in Goodwill | The following table summarizes changes in goodwill during the nine months ended October 2, 2020 (in thousands):
Balance at beginning of the period | $ | 274,710 |
Net working capital adjustments from a prior-year acquisition |  | 1,118 |
Effect of foreign exchange rate changes |  | 3,695 |
Balance at end of the period | $ | 279,523 |
Goodwill by Reportable Segment | Goodwill by reportable segment as of October 2, 2020 was as follows (in thousands):
| Reportable Segment |  |  |  |  |
| Photonics |  |  | Vision |  |  | Precision Motion |  |  | Total |
Goodwill | $ | 215,697 |  |  | $ | 162,580 |  |  | $ | 52,475 |  |  | $ | 430,752 |
Accumulated impairment of goodwill |  | (102,461 | ) |  |  | (31,722 | ) |  |  | (17,046 | ) |  |  | (151,229 | )
Total | $ | 113,236 |  |  | $ | 130,858 |  |  | $ | 35,429 |  |  | $ | 279,523 |
Goodwill by reportable segment as of December 31, 2019 was as follows (in thousands):
| Reportable Segment |  |  |  |  |
| Photonics |  |  | Vision |  |  | Precision Motion |  |  | Total |
Goodwill | $ | 213,413 |  |  | $ | 160,086 |  |  | $ | 52,440 |  |  | $ | 425,939 |
Accumulated impairment of goodwill |  | (102,461 | ) |  |  | (31,722 | ) |  |  | (17,046 | ) |  |  | (151,229 | )
Total | $ | 110,952 |  |  | $ | 128,364 |  |  | $ | 35,394 |  |  | $ | 274,710 |
Intangible Assets | Intangible assets as of October 2, 2020 and December 31, 2019, respectively, are summarized as follows (in thousands):
| October 2, 2020 |  |  | December 31, 2019 |
| Gross Carrying Amount |  |  | Accumulated Amortization |  |  | Net Carrying Amount |  |  | Gross Carrying Amount |  |  | Accumulated Amortization |  |  | Net Carrying Amount |
Amortizable intangible assets: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Patents and developed technologies | $ | 160,496 |  |  | $ | (106,118 | ) |  | $ | 54,378 |  |  | $ | 159,217 |  |  | $ | (97,523 | ) |  | $ | 61,694 |
Customer relationships |  | 163,155 |  |  |  | (88,072 | ) |  |  | 75,083 |  |  |  | 161,807 |  |  |  | (78,206 | ) |  |  | 83,601 |
Customer backlog |  | — |  |  |  | — |  |  |  | — |  |  |  | 2,316 |  |  |  | (2,316 | ) |  |  | — |
Trademarks and trade names |  | 17,939 |  |  |  | (10,814 | ) |  |  | 7,125 |  |  |  | 17,871 |  |  |  | (10,018 | ) |  |  | 7,853 |
Amortizable intangible assets |  | 341,590 |  |  |  | (205,004 | ) |  |  | 136,586 |  |  |  | 341,211 |  |  |  | (188,063 | ) |  |  | 153,148 |
Non-amortizable intangible assets: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Trade names |  | 13,027 |  |  |  | — |  |  |  | 13,027 |  |  |  | 13,027 |  |  |  | — |  |  |  | 13,027 |
Totals | $ | 354,617 |  |  | $ | (205,004 | ) |  | $ | 149,613 |  |  | $ | 354,238 |  |  | $ | (188,063 | ) |  | $ | 166,175 |
Amortization Expense of Intangible Assets | Amortization expense was as follows (in thousands):
| Three Months Ended |  |  | Nine Months Ended |
| October 2, |  |  | September 27, |  |  | October 2, |  |  | September 27, |
| 2020 |  |  | 2019 |  |  | 2020 |  |  | 2019 |
Amortization expense – cost of revenue | $ | 2,820 |  |  | $ | 2,797 |  |  | $ | 8,270 |  |  | $ | 7,554 |
Amortization expense – operating expenses |  | 3,533 |  |  |  | 3,970 |  |  |  | 10,388 |  |  |  | 11,740 |
Total amortization expense | $ | 6,353 |  |  | $ | 6,767 |  |  | $ | 18,658 |  |  | $ | 19,294 |
Estimated Amortization Expense | Estimated amortization expense for each of the five succeeding years and thereafter as of October 2, 2020 was as follows (in thousands):
Year Ending December 31, |  | Cost of Revenue |  |  | Operating Expenses |  |  | Total |
2020 (remainder of year) |  | $ | 2,820 |  |  | $ | 3,533 |  |  | $ | 6,353 |
2021 |  |  | 11,521 |  |  |  | 13,866 |  |  |  | 25,387 |
2022 |  |  | 9,863 |  |  |  | 13,055 |  |  |  | 22,918 |
2023 |  |  | 8,667 |  |  |  | 11,360 |  |  |  | 20,027 |
2024 |  |  | 6,452 |  |  |  | 9,383 |  |  |  | 15,835 |
Thereafter |  |  | 15,055 |  |  |  | 31,011 |  |  |  | 46,066 |
Total |  | $ | 54,378 |  |  | $ | 82,208 |  |  | $ | 136,586 |

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