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v3.23.2

Revenue - Disaggregation of Revenue (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | $ 192,365 | $ 135,483 | $ 490,667 | $ 369,907
Oil and gas (excludes petrochemical) |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 73,452 | 58,669 | 179,560 | 155,324
Petrochemical |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 21,995 | 15,187 | 70,372 | 51,268
Electric utility |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 43,824 | 30,173 | 114,899 | 82,079
Commercial and other industrial |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 35,527 | 14,966 | 74,846 | 30,583
Traction power |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 7,143 | 9,775 | 21,532 | 31,200
All others |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 10,424 | 6,713 | 29,458 | 19,453
United States |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 153,258 | 102,931 | 387,531 | 272,069
Canada |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 21,765 | 23,599 | 62,255 | 60,777
Europe, Middle East and Africa |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 12,004 | 6,697 | 30,521 | 30,078
Asia/Pacific |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 2,338 | 1,645 | 4,903 | 4,235
Mexico, Central and South America |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | $ 3,000 | $ 611 | $ 5,457 | $ 2,748

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