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The Company and Significant Accounting Policies - Government Grants Narrative (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract] |  |  |
Government grants, reduction recorded to interest expense |  |  | $ 0.9
Government grants, reduction recorded to operating expenses |  |  | 0.2
Government grants, reduction recorded to property, plant and equipment | $ 1.0 | $ 0.6 | $ 1.4
Decrease in operating expense |  | $ 0.1 |

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