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Restructuring (Details) - Facility Consolidation - Campus Location Consolidation $ in Millions |  | 12 Months Ended |
--- | --- | --- | ---
Dec. 05, 2023 USD ($) location | Sep. 30, 2024 USD ($) | Sep. 30, 2025 USD ($)
Restructuring Cost and Reserve [Line Items] |  |  |
Number of plans consolidated | location | 2 |  |
Forecast |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Expected estimated costs |  |  | $ 1.9
UTI |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring costs | $ 2.1 |  |
Termination costs |  | $ 0.2 |
UTI | Educational services and facilities |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Termination costs |  | 0.1 |
UTI | Selling, general and administrative |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Termination costs |  | $ 0.1 |

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