SEGMENTS - Schedule of Capital expenditures by segment And Long lived assets by operating segments (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2026	Sep. 30, 2025	Sep. 30, 2026	Sep. 30, 2025	Dec. 31, 2025
Segment Reporting [Line Items]
Total capital expenditures	$ 20,840	$ 29,216	$ 129,516	$ 112,893
Total long-lived assets	1,451,078		1,451,078		$ 1,394,334
Operating Segments
Segment Reporting [Line Items]
Total long-lived assets	1,336,747		1,336,747		1,247,689
Corporate
Segment Reporting [Line Items]
Total long-lived assets	3,611		3,611		2,058
Construction-in-progress \| Reconciling
Segment Reporting [Line Items]
Total long-lived assets	110,720		110,720		144,587
Offshore Energy Services \| Operating Segments
Segment Reporting [Line Items]
Total capital expenditures	6,706	2,643	97,274	30,984
Total long-lived assets	560,281		560,281		567,284
Government Services \| Operating Segments
Segment Reporting [Line Items]
Total capital expenditures	12,144	25,038	26,839	76,192
Total long-lived assets	703,319		703,319		620,820
Other Services \| Operating Segments
Segment Reporting [Line Items]
Total capital expenditures	1,990	$ 1,535	5,403	$ 5,717
Total long-lived assets	$ 73,147		$ 73,147		$ 59,585