Quarterly report [Sections 13 or 15(d)]

SEGMENTS - Schedule of Depreciation And Amortization Expense By Operating Segment (Details)

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SEGMENTS - Schedule of Depreciation And Amortization Expense By Operating Segment (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2025
Sep. 30, 2024
Sep. 30, 2025
Sep. 30, 2024
Segment Reporting Information [Line Items]        
Depreciation and amortization expense $ 17,739 $ 17,569 $ 51,892 $ 51,586
PBH amortization 2,172 3,723 9,165 11,174
Total depreciation and amortization expense 19,911 21,292 61,057 62,760
Offshore Energy Services        
Segment Reporting Information [Line Items]        
Depreciation and amortization expense 7,049 7,360 20,843 21,628
PBH amortization 1,758 3,055 7,707 9,222
Total depreciation and amortization expense 8,807 10,415 28,550 30,850
Government Services        
Segment Reporting Information [Line Items]        
Depreciation and amortization expense 7,846 7,041 22,628 20,707
PBH amortization 378 503 1,252 1,513
Total depreciation and amortization expense 8,224 7,544 23,880 22,220
Other Services        
Segment Reporting Information [Line Items]        
Depreciation and amortization expense 2,622 2,987 7,855 8,589
PBH amortization 36 165 206 439
Total depreciation and amortization expense 2,658 3,152 8,061 9,028
Corporate        
Segment Reporting Information [Line Items]        
Depreciation and amortization expense 222 181 566 662
PBH amortization 0 0 0 0
Total depreciation and amortization expense $ 222 $ 181 $ 566 $ 662