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Revenue - Disaggregated Revenue (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | $ 182,694 | $ 179,354 | $ 556,909 | $ 523,399
United States |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 124,797 | 126,542 | 387,270 | 373,280
Other Americas |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 26,646 | 24,000 | 70,411 | 65,339
Europe |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 28,996 | 27,038 | 90,376 | 77,162
Asia-Pacific |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 2,255 | 1,774 | 8,852 | 7,618
Oil & Gas |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 99,503 | 103,252 | 321,924 | 308,041
Aerospace & Defense |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 21,886 | 20,065 | 66,344 | 57,685
Industrials |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 19,512 | 16,653 | 53,005 | 50,303
Power Generation & Transmission |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 11,654 | 9,737 | 26,539 | 25,863
Other Process Industries |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 11,815 | 9,792 | 38,624 | 35,546
Infrastructure, Research & Engineering |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 8,730 | 9,495 | 23,949 | 22,002
Petrochemical |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 4,004 | 3,899 | 12,367 | 10,914
Other |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 5,590 | 6,461 | 14,157 | 13,045
Operating segments | North America |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 149,845 | 148,814 | 456,588 | 431,295
Operating segments | North America | United States |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 124,194 | 126,239 | 384,522 | 369,811
Operating segments | North America | Other Americas |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 25,108 | 21,907 | 66,829 | 57,218
Operating segments | North America | Europe |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 343 | 465 | 2,107 | 3,159
Operating segments | North America | Asia-Pacific |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 200 | 203 | 3,130 | 1,107
Operating segments | North America | Oil & Gas |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 90,460 | 94,390 | 289,843 | 281,663
Operating segments | North America | Aerospace & Defense |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 16,181 | 14,240 | 48,152 | 41,516
Operating segments | North America | Industrials |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 12,285 | 10,325 | 33,047 | 30,693
Operating segments | North America | Power Generation & Transmission |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 8,029 | 7,388 | 18,953 | 17,834
Operating segments | North America | Other Process Industries |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 7,836 | 6,933 | 26,132 | 24,906
Operating segments | North America | Infrastructure, Research & Engineering |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 5,189 | 6,042 | 14,286 | 12,696
Operating segments | North America | Petrochemical |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 3,806 | 3,313 | 11,467 | 10,027
Operating segments | North America | Other |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 6,059 | 6,183 | 14,708 | 11,960
Operating segments | International |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 33,662 | 30,980 | 100,972 | 90,664
Operating segments | International | United States |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 402 | 120 | 1,129 | 709
Operating segments | International | Other Americas |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 2,008 | 3,703 | 6,224 | 11,013
Operating segments | International | Europe |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 29,458 | 26,764 | 89,304 | 75,421
Operating segments | International | Asia-Pacific |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 1,794 | 393 | 4,315 | 3,521
Operating segments | International | Oil & Gas |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 9,040 | 8,827 | 31,841 | 26,291
Operating segments | International | Aerospace & Defense |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 5,663 | 5,778 | 18,092 | 15,894
Operating segments | International | Industrials |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 6,749 | 6,018 | 18,480 | 18,274
Operating segments | International | Power Generation & Transmission |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 3,081 | 1,653 | 6,017 | 4,840
Operating segments | International | Other Process Industries |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 3,900 | 2,864 | 12,337 | 10,567
Operating segments | International | Infrastructure, Research & Engineering |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 2,744 | 2,383 | 7,762 | 6,547
Operating segments | International | Petrochemical |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 198 | 586 | 900 | 887
Operating segments | International | Other |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 2,287 | 2,871 | 5,543 | 7,364
Operating segments | Products |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 3,276 | 2,829 | 9,860 | 9,897
Operating segments | Products | United States |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 1,658 | 1,032 | 4,800 | 4,478
Operating segments | Products | Other Americas |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 107 | 49 | 960 | 673
Operating segments | Products | Europe |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 850 | 510 | 2,081 | 1,275
Operating segments | Products | Asia-Pacific |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 661 | 1,238 | 2,019 | 3,471
Operating segments | Products | Oil & Gas |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 3 | 35 | 240 | 87
Operating segments | Products | Aerospace & Defense |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 42 | 47 | 100 | 275
Operating segments | Products | Industrials |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 478 | 310 | 1,478 | 1,336
Operating segments | Products | Power Generation & Transmission |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 544 | 696 | 1,569 | 3,189
Operating segments | Products | Other Process Industries |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 79 | (5) | 155 | 73
Operating segments | Products | Infrastructure, Research & Engineering |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 797 | 1,070 | 1,901 | 2,759
Operating segments | Products | Petrochemical |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 0 | 0 | 0 | 0
Operating segments | Products | Other |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 1,333 | 676 | 4,417 | 2,178
Corp/Elim |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | (4,089) | (3,269) | (10,511) | (8,457)
Corp/Elim | United States |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | (1,457) | (849) | (3,181) | (1,718)
Corp/Elim | Other Americas |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | (577) | (1,659) | (3,602) | (3,565)
Corp/Elim | Europe |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | (1,655) | (701) | (3,116) | (2,693)
Corp/Elim | Asia-Pacific |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | (400) | (60) | (612) | (481)
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 | $ (4,089) | $ (3,269) | $ (10,511) | $ (8,457)

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