Annual report [Section 13 and 15(d), not S-K Item 405]

SEGMENT AND GEOGRAPHIC AREA INFORMATION - Schedule of Operating Performance (Details)

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SEGMENT AND GEOGRAPHIC AREA INFORMATION - Schedule of Operating Performance (Details) - USD ($)
$ in Thousands
9 Months Ended 12 Months Ended
Dec. 31, 2022
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Segment Reporting Information [Line Items]        
Revenues $ 922,569 $ 1,415,491 $ 1,297,429 $ 1,209,968
Less:        
Personnel 220,172 340,560 323,681  
Repairs and maintenance 199,754 273,284 253,916  
Insurance 13,308 24,907 23,785  
Fuel 85,902 86,946 91,499  
Leased-in equipment 71,923 103,540 99,096  
Other segment costs 123,811 212,881 198,426  
Total operating expenses 714,870 1,042,118 990,403  
General and administrative expenses 123,041 175,550 181,745  
Merger and integration costs 994   2,201  
Depreciation and amortization expense 49,587 68,287 70,606  
Total costs and expenses 888,492 1,285,955 1,244,955 1,179,397
Loss on impairment 5,187 0 0 5,187
Losses on disposal of assets (480) (1,045) 1,112 (521)
Earnings from unconsolidated affiliates 1,461 4,117 7,165 $ 1,136
Operating Income (Loss) 29,871 132,608 60,751  
Offshore Energy Services        
Segment Reporting Information [Line Items]        
Revenues 625,199 966,064 852,956  
Less:        
Personnel 151,380 218,811 210,138  
Repairs and maintenance 154,279 211,791 191,699  
Insurance 8,454 16,464 14,893  
Fuel 61,390 58,318 63,823  
Leased-in equipment 41,650 60,515 56,971  
Other segment costs 94,238 144,741 139,529  
Total operating expenses 511,391 710,640 677,053  
General and administrative expenses 69,625 98,972 104,471  
Merger and integration costs 652   2,201  
Depreciation and amortization expense 24,404 28,404 30,783  
Total costs and expenses 606,072 838,016 814,508  
Loss on impairment 4,580      
Losses on disposal of assets 0 0 0  
Earnings from unconsolidated affiliates 1,461 4,117 7,165  
Operating Income (Loss) 16,008 132,165 45,613  
Government Services        
Segment Reporting Information [Line Items]        
Revenues 217,360 329,654 337,280  
Less:        
Personnel 53,159 97,256 90,498  
Repairs and maintenance 32,984 48,893 49,859  
Insurance 4,142 7,296 7,898  
Fuel 8,921 9,072 10,446  
Leased-in equipment 24,374 37,995 38,033  
Other segment costs 17,397 43,392 41,765  
Total operating expenses 140,977 243,904 238,499  
General and administrative expenses 27,473 36,986 40,070  
Merger and integration costs 191   0  
Depreciation and amortization expense 18,953 27,694 29,101  
Total costs and expenses 187,594 308,584 307,670  
Loss on impairment 40      
Losses on disposal of assets 0 0 0  
Earnings from unconsolidated affiliates 0 0 0  
Operating Income (Loss) 29,726 21,070 29,610  
Other Operating Segment        
Segment Reporting Information [Line Items]        
Revenues 80,010 119,773 107,193  
Less:        
Personnel 15,633 24,493 23,045  
Repairs and maintenance 12,491 12,600 12,358  
Insurance 712 1,147 994  
Fuel 15,591 19,556 17,230  
Leased-in equipment 5,899 5,030 4,092  
Other segment costs 12,176 24,748 17,132  
Total operating expenses 62,502 87,574 74,851  
General and administrative expenses 4,709 7,082 7,176  
Merger and integration costs 0   0  
Depreciation and amortization expense 5,776 11,370 9,768  
Total costs and expenses 72,987 106,026 91,795  
Loss on impairment 567      
Losses on disposal of assets 0 0 0  
Earnings from unconsolidated affiliates 0 0 0  
Operating Income (Loss) 6,456 13,747 15,398  
Corporate        
Segment Reporting Information [Line Items]        
Revenues 0 0 0  
Less:        
Personnel 0 0 0  
Repairs and maintenance 0 0 0  
Insurance 0 0 0  
Fuel 0 0 0  
Leased-in equipment 0 0 0  
Other segment costs 0 0 0  
Total operating expenses 0 0 0  
General and administrative expenses 21,234 32,510 30,028  
Merger and integration costs 151   0  
Depreciation and amortization expense 454 819 954  
Total costs and expenses 21,839 33,329 30,982  
Loss on impairment 0      
Losses on disposal of assets (480) (1,045) 1,112  
Earnings from unconsolidated affiliates 0 0 0  
Operating Income (Loss) $ (22,319) $ (34,374) $ (29,870)