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Restructuring and Related Charges (Narratives) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2023
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring charges, net of reversals and impairment | $ 1,500 | $ 36,300 | $ 2,900
Restructuring charges | 3,336 | 37,622 |
Restructuring liability | 693 | 11,469 | $ 0
Other Accrued Liabilities |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring liability | 700 | 11,500 |
Q2 2024 Plan and Q3 2024 Plan |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring charges | 28,300 |  |
2023 Plan |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring charges |  | 100 |
2023 Plan | Moving Costs and Accelerated Depreciation of Leasehold Improvements |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring charges |  | 6,600 |
Restructuring charges accelerated depreciation on lab leasehold improvements |  | 5,900 |
Q3 2024 Plan |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring charges | 1,200 | 11,000 |
Q2 2024 Plan |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring charges | $ 100 | 15,900 |
Q1 2024 Plan |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring charges, net of reversals and impairment |  | $ 2,900 |

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