ASSETS AND LIABILITIES HELD FOR SALE AND DISCONTINUED OPERATIONS - Major Classes of Assets and Liabilities in Balance Sheets (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash and cash equivalents	$ 300
Current assets of discontinued operations	26,893	$ 18,495
Current liabilities of discontinued operations	36,946	43,614
B&W Solar | Discontinued Operations, Held-for-sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash and cash equivalents	0	31
Contracts in progress	10,559	4,538
Accounts receivable – trade, net	5,331	3,272
Other current assets	167	62
Total current assets	16,057	7,903
Net property, plant and equipment and finance leases	3,107	2,683
Intangible assets, net	7,833	7,833
Right-of-use assets	59	76
Other non-current assets, net	(163)	0
Total non-current assets	10,836	10,592
Total assets held for sale	26,893	18,495
Loans payable	530	502
Operating lease liabilities	25	23
Accounts payable	31,201	26,298
Accrued employee benefits	43	231
Advance billings on contracts	1,151	5,961
Accrued warranty expense	1,138	1,078
Other accrued liabilities	775	8,101
Total current liabilities	34,863	42,194
Loans payable, net of current portion	885	1,308
Operating lease liabilities, net of current portion	36	0
Other noncurrent liabilities	1,162	112
Total noncurrent liabilities	2,083	1,420
Total liabilities held for sale	36,946	43,614
Current assets of discontinued operations	26,893	18,495
Current liabilities of discontinued operations	$ 36,946	$ 43,614