Goodwill and Related Intangible Assets (Schedule of Changes in Carrying Amount of Goodwill) (Details) $ in Thousands	3 Months Ended
Mar. 31, 2021 USD ($)
Goodwill [Roll Forward]
Balance at December 31, 2020	$ 514,279
Adjustments to prior year acquisitions	9,951
Foreign currency translation	(784)
Balance at March 31, 2021	523,446
Renewables
Goodwill [Roll Forward]
Balance at December 31, 2020	192,527
Adjustments to prior year acquisitions	9,951
Foreign currency translation	(989)
Balance at March 31, 2021	201,489
Residential
Goodwill [Roll Forward]
Balance at December 31, 2020	205,452
Adjustments to prior year acquisitions	0
Foreign currency translation	0
Balance at March 31, 2021	205,452
Agtech
Goodwill [Roll Forward]
Balance at December 31, 2020	84,622
Adjustments to prior year acquisitions	0
Foreign currency translation	205
Balance at March 31, 2021	84,827
Infrastructure
Goodwill [Roll Forward]
Balance at December 31, 2020	31,678
Adjustments to prior year acquisitions
Foreign currency translation	0
Balance at March 31, 2021	$ 31,678

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

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
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