Segment Information (Net Sales by Contract Type) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Disaggregation of Revenue [Line Items]
Net sales:	$ 1,339,783	$ 1,032,578	$ 898,233
Renewables
Disaggregation of Revenue [Line Items]
Net sales:	432,096	238,107	229,755
Residential
Disaggregation of Revenue [Line Items]
Net sales:	635,505	522,814	461,630
Agtech
Disaggregation of Revenue [Line Items]
Net sales:	199,161	209,460	143,268
Infrastructure
Disaggregation of Revenue [Line Items]
Net sales:	73,021	62,197	63,580
Point in Time
Disaggregation of Revenue [Line Items]
Net sales:	711,793	616,789	527,092
Point in Time | Renewables
Disaggregation of Revenue [Line Items]
Net sales:	28,630	22,833	2,677
Point in Time | Residential
Disaggregation of Revenue [Line Items]
Net sales:	630,494	518,281	458,006
Point in Time | Agtech
Disaggregation of Revenue [Line Items]
Net sales:	20,157	52,894	39,919
Point in Time | Infrastructure
Disaggregation of Revenue [Line Items]
Net sales:	32,512	22,781	26,490
Over Time
Disaggregation of Revenue [Line Items]
Net sales:	627,990	415,789	371,141
Over Time | Renewables
Disaggregation of Revenue [Line Items]
Net sales:	403,466	215,274	227,078
Over Time | Residential
Disaggregation of Revenue [Line Items]
Net sales:	5,011	4,533	3,624
Over Time | Agtech
Disaggregation of Revenue [Line Items]
Net sales:	179,004	156,566	103,349
Over Time | Infrastructure
Disaggregation of Revenue [Line Items]
Net sales:	$ 40,509	$ 39,416	$ 37,090