v3.26.3
Segment Reporting (Details)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2026
USD ($)
Sep. 30, 2025
USD ($)
Sep. 30, 2026
USD ($)
segement
Sep. 30, 2025
USD ($)
Dec. 31, 2025
USD ($)
Segment Reporting [Line Items]          
Revenues $ 784,554 $ 742,898 $ 2,245,167 $ 2,115,582  
Cost of services and products 619,996 590,166 1,796,357 1,679,412  
Selling, general and administrative expense 72,405 66,224 210,632 197,001  
Depreciation 24,000 22,000 70,000 64,000  
Depreciation, Depletion and Amortization 26,578 26,123 81,178 75,971  
Segment Reporting, Long-Lived Asset, Expenditure for Addition 21,112 24,215 61,697 80,575  
Income (Loss) from Operations 92,153 86,508 $ 238,178 239,169  
Number of Reportable Segments | segement     5    
Income (Loss), Including Portion Attributable to Noncontrolling Interest, before Tax 69,071 79,907 $ 209,977 227,701  
Interest income 5,789 3,704 15,754 10,365  
Interest Expense, Operating and Nonoperating (8,755) (9,381) (26,316) (27,928)  
Equity in income (losses) of unconsolidated affiliates 357 97 1,844 770  
Other income (expense), net (1,439) (1,021) (449) 5,325  
Assets 2,775,446 2,539,318 2,775,446 2,539,318 $ 2,667,254
Property, Plant, and Equipment, after Accumulated Depreciation, Depletion, and Amortization 440,711 442,274 440,711 442,274 451,693
Goodwill 50,929 51,039 50,929 51,039 $ 51,023
Amortization 3,100 4,100 11,000 12,000  
Gain (Loss) on Extinguishment of Debt (19,034) 0 (19,034) 0  
Subsea Robotics Member          
Segment Reporting [Line Items]          
Revenues 232,995 218,767 679,284 643,529  
Cost of services and products 143,325 139,162 437,804 411,563  
Selling, general and administrative expense 14,307 14,463 44,284 42,687  
Depreciation, Depletion and Amortization 14,342 13,283 42,280 37,404  
Segment Reporting, Long-Lived Asset, Expenditure for Addition 14,661 12,707 34,679 52,423  
Income (Loss) from Operations 75,363 65,142 197,196 189,279  
Income (Loss), Including Portion Attributable to Noncontrolling Interest, before Tax 75,363 65,142 197,196 189,279  
Assets 572,759 552,015 572,759 552,015  
Property, Plant, and Equipment, after Accumulated Depreciation, Depletion, and Amortization 208,980 214,912 208,980 214,912  
Goodwill 23,927 23,814 23,927 23,814  
Manufactured Products Member          
Segment Reporting [Line Items]          
Revenues 168,156 156,395 460,834 436,566  
Cost of services and products 133,704 121,415 358,519 355,556  
Selling, general and administrative expense 9,386 10,329 29,229 28,920  
Depreciation, Depletion and Amortization 2,753 2,768 8,306 8,159  
Segment Reporting, Long-Lived Asset, Expenditure for Addition 1,954 2,080 4,678 3,413  
Income (Loss) from Operations 25,066 24,651 73,086 52,090  
Income (Loss), Including Portion Attributable to Noncontrolling Interest, before Tax 25,066 24,651 73,086 52,090  
Assets 353,691 412,310 353,691 412,310  
Property, Plant, and Equipment, after Accumulated Depreciation, Depletion, and Amortization 56,376 60,974 56,376 60,974  
Goodwill 0 0 0 0  
Integrity Managements & Digital Solutions Member          
Segment Reporting [Line Items]          
Revenues 75,806 70,781 214,534 217,566  
Cost of services and products 64,527 60,206 188,658 183,976  
Selling, general and administrative expense 8,527 7,819 24,022 22,725  
Depreciation, Depletion and Amortization 2,077 1,830 5,985 5,399  
Segment Reporting, Long-Lived Asset, Expenditure for Addition 1,137 871 5,014 2,837  
Income (Loss) from Operations 2,752 2,756 1,854 10,865  
Income (Loss), Including Portion Attributable to Noncontrolling Interest, before Tax 2,752 2,756 1,854 10,865  
Assets 151,963 146,285 151,963 146,285  
Property, Plant, and Equipment, after Accumulated Depreciation, Depletion, and Amortization 17,088 14,996 17,088 14,996  
Goodwill 16,548 16,771 16,548 16,771  
Offshore Projects Group          
Segment Reporting [Line Items]          
Revenues 172,523 171,046 490,742 485,268  
Cost of services and products 137,319 137,757 386,958 375,127  
Selling, general and administrative expense 10,982 9,597 31,199 29,120  
Depreciation, Depletion and Amortization 4,731 4,290 14,165 13,642  
Segment Reporting, Long-Lived Asset, Expenditure for Addition 121 3,553 6,930 13,658  
Income (Loss) from Operations 24,222 23,692 72,585 81,021  
Income (Loss), Including Portion Attributable to Noncontrolling Interest, before Tax 24,222 23,692 72,585 81,021  
Assets 465,328 615,101 465,328 615,101  
Property, Plant, and Equipment, after Accumulated Depreciation, Depletion, and Amortization 134,557 130,354 134,557 130,354  
Goodwill 0 0 0 0  
Aerospace and Defense Technologies Member          
Segment Reporting [Line Items]          
Revenues 135,074 125,909 399,773 332,653  
Depreciation, Depletion and Amortization 950 1,082 2,972 2,815  
Income (Loss) from Operations 14,749 16,557 39,285 43,521  
Unallocated Expenses [Member]          
Segment Reporting [Line Items]          
Cost of services and products 29,903 29,704 89,710 86,135  
Selling, general and administrative expense 20,096 16,586 56,118 51,472  
Depreciation, Depletion and Amortization 1,725 2,870 7,470 8,552  
Segment Reporting, Long-Lived Asset, Expenditure for Addition 451 3,734 3,694 5,123  
Income (Loss) from Operations (49,999) (46,290) (145,828) (137,607)  
Income (Loss), Including Portion Attributable to Noncontrolling Interest, before Tax (73,081) (52,891) (174,029) (149,075)  
Advanced Technologies [Member]          
Segment Reporting [Line Items]          
Cost of services and products 111,218 101,922 334,708 267,055  
Selling, general and administrative expense 9,107 7,430 25,780 22,077  
Segment Reporting, Long-Lived Asset, Expenditure for Addition 2,788 1,270 6,702 3,121  
Income (Loss), Including Portion Attributable to Noncontrolling Interest, before Tax 14,749 16,557 39,285 43,521  
Assets 157,816 144,664 157,816 144,664  
Property, Plant, and Equipment, after Accumulated Depreciation, Depletion, and Amortization 13,409 7,237 13,409 7,237  
Goodwill 10,454 10,454 10,454 10,454  
Corporate Segment          
Segment Reporting [Line Items]          
Assets 1,073,889 668,943 1,073,889 668,943  
Property, Plant, and Equipment, after Accumulated Depreciation, Depletion, and Amortization 10,301 13,801 10,301 13,801  
Goodwill $ 0 $ 0 $ 0 $ 0