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Goodwill and Related Intangible Assets (Schedule of Changes in Carrying Amount of Goodwill) (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2021 USD ($)
Goodwill [Roll Forward]
Balance at December 31, 2020	$ 514,279
Adjustments to prior year acquisitions	(4,323)
Foreign currency translation	(1,296)
Balance at September 30, 2021	508,660
Renewables
Goodwill [Roll Forward]
Balance at December 31, 2020	192,527
Adjustments to prior year acquisitions	(4,323)
Foreign currency translation	(990)
Balance at September 30, 2021	187,214
Residential
Goodwill [Roll Forward]
Balance at December 31, 2020	205,452
Adjustments to prior year acquisitions	0
Foreign currency translation	0
Balance at September 30, 2021	205,452
Agtech
Goodwill [Roll Forward]
Balance at December 31, 2020	84,622
Adjustments to prior year acquisitions	0
Foreign currency translation	(306)
Balance at September 30, 2021	84,316
Infrastructure
Goodwill [Roll Forward]
Balance at December 31, 2020	31,678
Adjustments to prior year acquisitions	0
Foreign currency translation	0
Balance at September 30, 2021	$ 31,678

X

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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.

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