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

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

v3.25.4
SEGMENT AND GEOGRAPHIC AREA INFORMATION - Schedule of Operating Performance (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Segment Reporting Information [Line Items]      
Revenues $ 1,490,512 $ 1,415,491 $ 1,297,429
Less:      
Personnel 378,999 340,560 323,681
Repairs and maintenance 236,931 273,284 253,916
Insurance 24,900 24,907 23,785
Fuel 81,435 86,946 91,499
Leased-in equipment 106,607 103,540 99,096
Other segment costs 273,407 212,881 198,426
Total operating expenses 1,102,279 1,042,118 990,403
General and administrative expenses 174,121 175,550 181,745
Merger and integration costs     2,201
Depreciation and amortization expense 70,269 68,287 70,606
Total costs and expenses 1,346,669 1,285,955 1,244,955
Gains (losses) on disposal of assets 11,785 (1,045) 1,112
Earnings from unconsolidated affiliates 3,178 4,117 7,165
Operating Income (Loss) 158,806 132,608 60,751
Offshore Energy Services      
Segment Reporting Information [Line Items]      
Revenues 990,480 966,064 852,956
Less:      
Personnel 240,584 218,811 210,138
Repairs and maintenance 177,751 211,791 191,699
Insurance 15,019 16,464 14,893
Fuel 51,798 58,318 63,823
Leased-in equipment 61,468 60,515 56,971
Other segment costs 160,451 144,741 139,529
Total operating expenses 707,071 710,640 677,053
General and administrative expenses 93,059 98,972 104,471
Merger and integration costs     2,201
Depreciation and amortization expense 27,946 28,404 30,783
Total costs and expenses 828,076 838,016 814,508
Gains (losses) on disposal of assets 0 0 0
Earnings from unconsolidated affiliates 3,178 4,117 7,165
Operating Income (Loss) 165,582 132,165 45,613
Government Services      
Segment Reporting Information [Line Items]      
Revenues 379,437 329,654 337,280
Less:      
Personnel 112,312 97,256 90,498
Repairs and maintenance 46,407 48,893 49,859
Insurance 8,485 7,296 7,898
Fuel 10,175 9,072 10,446
Leased-in equipment 38,538 37,995 38,033
Other segment costs 85,861 43,392 41,765
Total operating expenses 301,778 243,904 238,499
General and administrative expenses 41,354 36,986 40,070
Merger and integration costs     0
Depreciation and amortization expense 31,227 27,694 29,101
Total costs and expenses 374,359 308,584 307,670
Gains (losses) on disposal of assets 0 0 0
Earnings from unconsolidated affiliates 0 0 0
Operating Income (Loss) 5,078 21,070 29,610
Other Services      
Segment Reporting Information [Line Items]      
Revenues 120,595 119,773 107,193
Less:      
Personnel 26,103 24,493 23,045
Repairs and maintenance 12,773 12,600 12,358
Insurance 1,396 1,147 994
Fuel 19,462 19,556 17,230
Leased-in equipment 6,601 5,030 4,092
Other segment costs 27,095 24,748 17,132
Total operating expenses 93,430 87,574 74,851
General and administrative expenses 7,030 7,082 7,176
Merger and integration costs     0
Depreciation and amortization expense 10,321 11,370 9,768
Total costs and expenses 110,781 106,026 91,795
Gains (losses) on disposal of assets 0 0 0
Earnings from unconsolidated affiliates 0 0 0
Operating Income (Loss) 9,814 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 32,678 32,510 30,028
Merger and integration costs     0
Depreciation and amortization expense 775 819 954
Total costs and expenses 33,453 33,329 30,982
Gains (losses) on disposal of assets 11,785 (1,045) 1,112
Earnings from unconsolidated affiliates 0 0 0
Operating Income (Loss) $ (21,668) $ (34,374) $ (29,870)