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Goodwill and Related Intangible Assets (Tables) | 12 Months Ended
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Dec. 31, 2022
Goodwill and Intangible Assets Disclosure [Abstract] |
Schedule of Changes in Carrying Amount of Goodwill | The changes in the carrying amount of goodwill for the years ended December 31 were as follows (in thousands):
| Renewables |  | Residential |  | Agtech |  | Infrastructure |  | Total
Balance at December 31, 2020 | $ | 192,527 |  |  | $ | 205,452 |  |  | $ | 84,622 |  |  | $ | 31,678 |  |  | $ | 514,279 |
Adjustments to prior year acquisitions | (2,433) |  |  | — |  |  | 323 |  |  | — |  |  | (2,110) |
Foreign currency translation | (1,414) |  |  | — |  |  | 187 |  |  | — |  |  | (1,227) |
Balance at December 31, 2021 | 188,680 |  |  | 205,452 |  |  | 85,132 |  |  | 31,678 |  |  | 510,942 |
Acquired goodwill | — |  |  | 3,604 |  |  | — |  |  | — |  |  | 3,604 |
Adjustment to prior year acquisition | 904 |  |  | — |  |  | — |  |  | — |  |  | 904 |
Foreign currency translation | (1,554) |  |  | — |  |  | (1,533) |  |  | — |  |  | (3,087) |
Balance at December 31, 2022 | $ | 188,030 |  |  | $ | 209,056 |  |  | $ | 83,599 |  |  | $ | 31,678 |  |  | $ | 512,363 |
Schedule of Acquired Intangible Assets | Acquired intangible assets consisted of the following (in thousands):
| December 31, 2022 |  | December 31, 2021 |  |
| Gross Carrying Amount |  | Accumulated Amortization |  | Gross Carrying Amount |  | Accumulated Amortization |  |
Indefinite-lived intangible assets: |  |  |  |  |  |  |  |  |
Trademarks | $ | 55,500 |  |  | $ | — |  |  | $ | 52,700 |  |  | $ | — |  |  |
Finite-lived intangible assets: |  |  |  |  |  |  |  |  |
Trademarks | 5,448 |  |  | 4,481 |  |  | 5,521 |  |  | 4,011 |  |  |
Unpatented technology | 34,163 |  |  | 22,037 |  |  | 38,474 |  |  | 20,656 |  |  |
Customer relationships | 115,125 |  |  | 46,557 |  |  | 108,591 |  |  | 39,832 |  |  |
Non-compete agreements | 2,371 |  |  | 2,006 |  |  | 2,686 |  |  | 1,969 |  |  |
Backlog | — |  |  | — |  |  | 7,200 |  |  | 7,200 |  |  |
| 157,107 |  |  | 75,081 |  |  | 162,472 |  |  | 73,668 |  |  |
Total acquired intangible assets | $ | 212,607 |  |  | $ | 75,081 |  |  | $ | 215,172 |  |  | $ | 73,668 |  |  |
Schedule of Intangible Assets Amortization Expense | The following table summarizes amortization expense for the years ended December 31 (in thousands):
| 2022 |  | 2021 |  | 2020
Amortization expense | $ | 11,584 |  |  | $ | 18,856 |  |  | $ | 9,663 |
Schedule of Amortization Expense | Amortization expense related to acquired intangible assets for the next five years ended December 31 is estimated as follows (in thousands):
|  | 2023 |  | 2024 |  | 2025 |  | 2026 |  | 2027
| Amortization expense | $ | 11,102 |  |  | $ | 10,922 |  |  | $ | 10,782 |  |  | $ | 9,370 |  |  | $ | 7,728 |

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