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Revenue - Disaggregated Revenues (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | $ 185,405 | $ 189,773 | $ 347,020 | $ 374,215
United States |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 130,490 | 132,635 | 248,754 | 262,474
Other Americas |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 16,942 | 24,403 | 30,060 | 43,762
Europe |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 36,173 | 31,259 | 64,375 | 61,380
Asia-Pacific |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 1,800 | 1,476 | 3,831 | 6,599
Oil & Gas |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 102,816 | 109,256 | 199,380 | 222,421
Aerospace & Defense |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 24,002 | 22,340 | 44,406 | 44,458
Industrials |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 19,604 | 18,294 | 38,174 | 33,493
Power Generation & Transmission |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 11,793 | 9,033 | 16,446 | 14,885
Other Process Industries |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 11,049 | 14,909 | 21,302 | 26,809
Infrastructure, Research & Engineering |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 8,060 | 8,633 | 15,281 | 15,219
Petrochemical |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 3,113 | 4,019 | 5,746 | 8,363
Other |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 4,968 | 3,289 | 6,285 | 8,567
Operating segments |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 189,809 | 194,031 | 355,016 | 380,637
Operating segments | North America |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 147,992 | 156,394 | 276,894 | 306,743
Operating segments | North America | United States |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 129,011 | 130,870 | 243,344 | 260,328
Operating segments | North America | Other Americas |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 17,202 | 24,594 | 30,617 | 41,721
Operating segments | North America | Europe |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 979 | 611 | 1,645 | 1,764
Operating segments | North America | Asia-Pacific |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 800 | 319 | 1,288 | 2,930
Operating segments | North America | Oil & Gas |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 92,634 | 96,356 | 178,365 | 199,383
Operating segments | North America | Aerospace & Defense |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 16,848 | 16,596 | 30,855 | 31,971
Operating segments | North America | Industrials |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 11,647 | 11,853 | 23,335 | 20,762
Operating segments | North America | Power Generation & Transmission |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 9,320 | 7,332 | 12,544 | 10,924
Operating segments | North America | Other Process Industries |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 5,877 | 10,368 | 12,378 | 18,296
Operating segments | North America | Infrastructure, Research & Engineering |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 3,461 | 5,125 | 7,162 | 9,097
Operating segments | North America | Petrochemical |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 3,112 | 3,848 | 5,635 | 7,661
Operating segments | North America | Other |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 5,093 | 4,916 | 6,620 | 8,649
Operating segments | International |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 39,077 | 34,264 | 72,291 | 67,311
Operating segments | International | United States |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 3,706 | 432 | 4,248 | 728
Operating segments | International | Other Americas |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 15 | 1,921 | 2,846 | 4,216
Operating segments | International | Europe |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 35,132 | 31,183 | 63,914 | 59,846
Operating segments | International | Asia-Pacific |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 224 | 728 | 1,283 | 2,521
Operating segments | International | Oil & Gas |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 9,943 | 12,735 | 20,589 | 22,801
Operating segments | International | Aerospace & Defense |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 7,014 | 5,697 | 13,295 | 12,429
Operating segments | International | Industrials |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 7,597 | 5,878 | 14,114 | 11,731
Operating segments | International | Power Generation & Transmission |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 2,097 | 1,254 | 3,082 | 2,936
Operating segments | International | Other Process Industries |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 5,172 | 4,504 | 8,916 | 8,437
Operating segments | International | Infrastructure, Research & Engineering |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 4,020 | 2,813 | 6,582 | 5,018
Operating segments | International | Petrochemical |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 1 | 171 | 111 | 702
Operating segments | International | Other |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 3,233 | 1,212 | 5,602 | 3,257
Operating segments | Products & Systems |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 2,740 | 3,373 | 5,831 | 6,583
Operating segments | Products & Systems | United States |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 1,268 | 1,542 | 2,641 | 3,142
Operating segments | Products & Systems | Other Americas |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 212 | 675 | 228 | 852
Operating segments | Products & Systems | Europe |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 450 | 580 | 1,201 | 1,231
Operating segments | Products & Systems | Asia-Pacific |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 810 | 576 | 1,761 | 1,358
Operating segments | Products & Systems | Oil & Gas |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 239 | 165 | 426 | 237
Operating segments | Products & Systems | Aerospace & Defense |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 140 | 47 | 256 | 58
Operating segments | Products & Systems | Industrials |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 360 | 563 | 725 | 1,000
Operating segments | Products & Systems | Power Generation & Transmission |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 376 | 447 | 820 | 1,025
Operating segments | Products & Systems | Other Process Industries |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 0 | 37 | 8 | 76
Operating segments | Products & Systems | Infrastructure, Research & Engineering |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 579 | 695 | 1,537 | 1,104
Operating segments | Products & Systems | Petrochemical |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 0 | 0 | 0 | 0
Operating segments | Products & Systems | Other |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 1,046 | 1,419 | 2,059 | 3,083
Corp/Elim |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | (4,404) | (4,258) | (7,996) | (6,422)
Corp/Elim | United States |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | (3,495) | (209) | (1,479) | (1,724)
Corp/Elim | Other Americas |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | (487) | (2,787) | (3,631) | (3,027)
Corp/Elim | Europe |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | (388) | (1,115) | (2,385) | (1,461)
Corp/Elim | Asia-Pacific |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | (34) | (147) | (501) | (210)
Corp/Elim | Oil & Gas |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 0 | 0 | 0 | 0
Corp/Elim | Aerospace & Defense |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 0 | 0 | 0 | 0
Corp/Elim | Industrials |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 0 | 0 | 0 | 0
Corp/Elim | Power Generation & Transmission |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 0 | 0 | 0 | 0
Corp/Elim | Other Process Industries |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 0 | 0 | 0 | 0
Corp/Elim | Infrastructure, Research & Engineering |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 0 | 0 | 0 | 0
Corp/Elim | Petrochemical |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 0 | 0 | 0 | 0
Corp/Elim | Other |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | $ (4,404) | $ (4,258) | $ (7,996) | $ (6,422)

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