Restructuring and Related Charges (Narratives) (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2022
Restructuring Cost and Reserve [Line Items]
Restructuring charges, net of reversals and impairment	$ 36,300	$ 2,900	$ 1,700
Restructuring charges	37,622
Restructuring liability	11,469	0
Other Accrued Liabilities
Restructuring Cost and Reserve [Line Items]
Restructuring liability	11,500
2023 Plan
Restructuring Cost and Reserve [Line Items]
Restructuring charges		$ 2,900
Expected restructuring charges	2,800
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
2023 Plan | Maximum
Restructuring Cost and Reserve [Line Items]
Restructuring project completion, Duration	6 months
2023 Plan | Minimum
Restructuring Cost and Reserve [Line Items]
Restructuring project completion, Duration	3 months
Q3 2024 Plan
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 11,000
Q2 2024 Plan
Restructuring Cost and Reserve [Line Items]
Restructuring charges	15,900
Q2 2024 Plan | Minimum
Restructuring Cost and Reserve [Line Items]
Expected restructuring charges	1,000
Q1 2024 Plan
Restructuring Cost and Reserve [Line Items]
Restructuring charges, net of reversals and impairment	$ 2,900