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Goodwill (Tables) | 12 Months Ended
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Dec. 31, 2022
Goodwill and Intangible Assets Disclosure [Abstract] |
Schedule of Goodwill | The changes in the carrying amount of goodwill for the year ended December 31, 2020, 2021, and 2022 are as follows:
| Vegetation Management | Industrial Equipment |  | Consolidated
(in thousands) |  |  |  |  |  |  |  |  |  |  |
Balance at December 31, 2019 |  | $ | 126,894 |  |  |  | $ | 71,128 |  |  |  |  |  |  | $ | 198,022 |
Translation adjustment |  | 132 |  |  |  | 1,036 |  |  |  |  |  |  | 1,168 |
Goodwill adjustment |  | (2,045) |  |  |  | (2,013) |  |  |  |  |  |  | (4,058) |
Balance at December 31, 2020 |  | $ | 124,981 |  |  |  | $ | 70,151 |  |  |  |  |  |  | $ | 195,132 |
Translation adjustment |  | (1,510) |  |  |  | (708) |  |  |  |  |  |  | (2,218) |
Goodwill acquired |  | 9,492 |  |  |  | — |  |  |  |  |  |  | 9,492 |
Balance at December 31, 2021 |  | $ | 132,963 |  |  |  | $ | 69,443 |  |  |  |  |  |  | $ | 202,406 |
Translation adjustment |  | (1,882) |  |  |  | (1,147) |  |  |  |  |  |  | (3,029) |
Goodwill adjustment |  | (3,519) |  |  |  | — |  |  |  |  |  |  | (3,519) |
Balance at December 31, 2022 |  | $ | 127,562 |  |  |  | $ | 68,296 |  |  |  |  |  |  | $ | 195,858 |

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