SEGMENT REPORTING - Schedule of Operating Results by Segment (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Segment Reporting [Line Items]
Revenues	$ 319,716	$ 138,856	$ 534,130	$ 287,454
B&W
Segment Reporting [Line Items]
Revenues	319,716	138,856	534,130	287,454
Parts \| B&W
Segment Reporting [Line Items]
Revenues	59,982	60,535	126,180	121,765
Projects \| B&W
Segment Reporting [Line Items]
Revenues	156,806	36,494	240,221	80,770
Construction \| B&W
Segment Reporting [Line Items]
Revenues	$ 102,928	$ 41,827	$ 167,729	$ 84,919

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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+ Details

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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+ Details