Segment Information (Measurements Used by Management to Assess Performance of Segments) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Segment Reporting, Other Significant Reconciling Item [Line Items]
Net sales:	$ 1,377,736	$ 1,389,966	$ 1,339,783
Income from operations:	150,729	130,102	96,988
Depreciation and amortization	27,378	26,167	31,966
Total assets	1,256,451	1,210,613	1,214,901
Capital expenditures	14,997	20,138	17,705
Operating Segments
Segment Reporting, Other Significant Reconciling Item [Line Items]
Income from operations:	190,829	163,618	133,959
Unallocated Corporate Expenses
Segment Reporting, Other Significant Reconciling Item [Line Items]
Income from operations:	(40,100)	(33,516)	(36,971)
Depreciation and amortization	1,701	1,190	219
Total assets	117,287	24,448	21,246
Capital expenditures	4,239	1,424	3,869
Renewables
Segment Reporting, Other Significant Reconciling Item [Line Items]
Net sales:	330,738	377,567	432,096
Renewables | Operating Segments
Segment Reporting, Other Significant Reconciling Item [Line Items]
Net sales:	330,738	377,567	432,096
Income from operations:	30,160	25,243	20,158
Depreciation and amortization	8,671	8,467	14,682
Total assets	377,694	392,368	445,486
Capital expenditures	1,113	3,589	4,268
Residential
Segment Reporting, Other Significant Reconciling Item [Line Items]
Net sales:	814,803	767,248	635,505
Residential | Operating Segments
Segment Reporting, Other Significant Reconciling Item [Line Items]
Net sales:	814,803	767,248	635,505
Income from operations:	143,068	126,458	105,821
Depreciation and amortization	10,080	8,983	8,694
Total assets	515,739	519,567	453,469
Capital expenditures	6,913	10,050	4,182
Agtech
Segment Reporting, Other Significant Reconciling Item [Line Items]
Net sales:	144,967	168,868	199,161
Agtech | Operating Segments
Segment Reporting, Other Significant Reconciling Item [Line Items]
Net sales:	144,967	168,868	199,161
Income from operations:	(928)	2,914	(931)
Depreciation and amortization	3,789	4,377	5,279
Total assets	168,213	193,966	212,038
Capital expenditures	1,419	3,177	3,289
Infrastructure
Segment Reporting, Other Significant Reconciling Item [Line Items]
Net sales:	87,228	76,283	73,021
Infrastructure | Operating Segments
Segment Reporting, Other Significant Reconciling Item [Line Items]
Net sales:	87,228	76,283	73,021
Income from operations:	18,529	9,003	8,911
Depreciation and amortization	3,137	3,150	3,092
Total assets	77,518	80,264	82,662
Capital expenditures	$ 1,313	$ 1,898	$ 2,097