Goodwill and Intangible Assets - Goodwill (Details) $ in Thousands	3 Months Ended
Mar. 31, 2022 USD ($)
Goodwill [Roll Forward]
Beginning balance	$ 202,406
Translation adjustment	(23)
Goodwill adjustment	(3,657)
Ending Balance	198,726
Vegetation Management
Goodwill [Roll Forward]
Beginning balance	132,963
Translation adjustment	167
Goodwill adjustment	(3,657)
Ending Balance	129,473
Industrial Equipment
Goodwill [Roll Forward]
Beginning balance	69,443
Translation adjustment	(190)
Goodwill adjustment	0
Ending Balance	$ 69,253

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(10)(1))
-URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878

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Reference 3: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
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- Definition

Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

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- Definition

Amount of increase (decrease) from adjustments after acquisition date under purchase accounting of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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