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REVENUES - Disaggregation of Revenues (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023
Disaggregation of revenues |  |
Revenues | $ 247,026 | $ 218,314
Point in time |  |
Disaggregation of revenues |  |
Revenues | 129,195 | 114,148
Over time |  |
Disaggregation of revenues |  |
Revenues | 117,831 | 104,166
United States |  |
Disaggregation of revenues |  |
Revenues | 185,250 | 158,114
International |  |
Disaggregation of revenues |  |
Revenues | 61,776 | 60,200
Commercial |  |
Disaggregation of revenues |  |
Revenues | 168,128 | 153,765
Government |  |
Disaggregation of revenues |  |
Revenues | 78,898 | 64,549
A&D |  |
Disaggregation of revenues |  |
Revenues | 114,301 | 94,733
A&D | Point in time |  |
Disaggregation of revenues |  |
Revenues | 50,126 | 39,465
A&D | Over time |  |
Disaggregation of revenues |  |
Revenues | 64,175 | 55,268
A&D | United States |  |
Disaggregation of revenues |  |
Revenues | 96,703 | 79,901
A&D | International |  |
Disaggregation of revenues |  |
Revenues | 17,598 | 14,832
A&D | Commercial |  |
Disaggregation of revenues |  |
Revenues | 47,500 | 37,209
A&D | Government |  |
Disaggregation of revenues |  |
Revenues | 66,801 | 57,524
USG |  |
Disaggregation of revenues |  |
Revenues | 86,660 | 82,984
USG | Point in time |  |
Disaggregation of revenues |  |
Revenues | 69,278 | 66,703
USG | Over time |  |
Disaggregation of revenues |  |
Revenues | 17,382 | 16,281
USG | United States |  |
Disaggregation of revenues |  |
Revenues | 59,917 | 55,961
USG | International |  |
Disaggregation of revenues |  |
Revenues | 26,743 | 27,023
USG | Commercial |  |
Disaggregation of revenues |  |
Revenues | 84,279 | 81,469
USG | Government |  |
Disaggregation of revenues |  |
Revenues | 2,381 | 1,515
Test |  |
Disaggregation of revenues |  |
Revenues | 46,065 | 40,597
Test | Point in time |  |
Disaggregation of revenues |  |
Revenues | 9,791 | 7,980
Test | Over time |  |
Disaggregation of revenues |  |
Revenues | 36,274 | 32,617
Test | United States |  |
Disaggregation of revenues |  |
Revenues | 28,630 | 22,252
Test | International |  |
Disaggregation of revenues |  |
Revenues | 17,435 | 18,345
Test | Commercial |  |
Disaggregation of revenues |  |
Revenues | 36,349 | 35,087
Test | Government |  |
Disaggregation of revenues |  |
Revenues | $ 9,716 | $ 5,510

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