Segment Information (Net Sales by Contract Type) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Disaggregation of Revenue [Line Items]
Net sales:	$ 1,377,736	$ 1,389,966	$ 1,339,783
Renewables
Disaggregation of Revenue [Line Items]
Net sales:	330,738	377,567	432,096
Residential
Disaggregation of Revenue [Line Items]
Net sales:	814,803	767,248	635,505
Agtech
Disaggregation of Revenue [Line Items]
Net sales:	144,967	168,868	199,161
Infrastructure
Disaggregation of Revenue [Line Items]
Net sales:	87,228	76,283	73,021
Point in Time
Disaggregation of Revenue [Line Items]
Net sales:	893,815	834,887	711,793
Point in Time | Renewables
Disaggregation of Revenue [Line Items]
Net sales:	49,123	27,317	28,630
Point in Time | Residential
Disaggregation of Revenue [Line Items]
Net sales:	808,225	761,576	630,494
Point in Time | Agtech
Disaggregation of Revenue [Line Items]
Net sales:	4,920	13,011	20,157
Point in Time | Infrastructure
Disaggregation of Revenue [Line Items]
Net sales:	31,547	32,983	32,512
Over Time
Disaggregation of Revenue [Line Items]
Net sales:	483,921	555,079	627,990
Over Time | Renewables
Disaggregation of Revenue [Line Items]
Net sales:	281,615	350,250	403,466
Over Time | Residential
Disaggregation of Revenue [Line Items]
Net sales:	6,578	5,672	5,011
Over Time | Agtech
Disaggregation of Revenue [Line Items]
Net sales:	140,047	155,857	179,004
Over Time | Infrastructure
Disaggregation of Revenue [Line Items]
Net sales:	$ 55,681	$ 43,300	$ 40,509