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SEGMENTS - Summary of Information by Reportable Segment (Detail) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2023
Sales Information [Line Items] |  |  |  |
Cost of revenues | $ 79,089 | $ 47,452 | $ 147,682 | $ 95,990
Gross profit | 27,162 | 14,593 | 51,336 | 20,950
Launch Services [Member] |  |  |  |
Sales Information [Line Items] |  |  |  |
Revenues | 29,357 | 22,495 | 62,076 | 42,116
Cost of revenues | 21,586 | 17,454 | 45,898 | 37,833
Gross profit | 7,771 | 5,041 | 16,178 | 4,283
Space Systems [Member] |  |  |  |
Sales Information [Line Items] |  |  |  |
Revenues | 76,894 | 39,550 | 136,942 | 74,824
Cost of revenues | 57,503 | 29,998 | 101,784 | 58,157
Gross profit | $ 19,391 | $ 9,552 | $ 35,158 | $ 16,667

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