Restructuring and Related Charges (Narratives) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2024	Dec. 31, 2023	Sep. 30, 2024	Jun. 30, 2024	Sep. 30, 2023	Jun. 30, 2023
Restructuring Cost And Reserve [Line Items]
Restructuring charges, net of reversals and impairment	$ 1,000	$ 9,200	$ 2,300	$ 11,900
Restructuring charges	1,134	9,412	2,707	12,188
Restructuring liabilities	3,398	6,192	3,398	6,192	$ 4,393	$ 11,469	$ 925	$ 0
Other Accrued Liabilities
Restructuring Cost And Reserve [Line Items]
Restructuring liabilities	3,400	6,200	3,400	6,200
2023 Plan
Restructuring Cost And Reserve [Line Items]
Restructuring charges			100
Expected restructuring charges	$ 1,600		$ 1,600
Restructuring and related activities completion year	2025		2025
Restructuring charges accelerated depreciation on lab leasehold improvements			$ 5,900
2023 Plan | Moving Expenses and Asset Disposal Costs
Restructuring Cost And Reserve [Line Items]
Other charges			700
2023 Plan | Moving Expenses and Accelerated Depreciation of Leasehold Improvements
Restructuring Cost And Reserve [Line Items]
Restructuring charges			6,600
Q3 2024 Plan
Restructuring Cost And Reserve [Line Items]
Restructuring charges	$ 900		1,500
Q2 2024 Plan
Restructuring Cost And Reserve [Line Items]
Restructuring charges		8,800	600
Q2 2024 Plan | Maximum
Restructuring Cost And Reserve [Line Items]
Restructuring charges	100
Q2 2024 Plan and Q3 2024 Plan
Restructuring Cost And Reserve [Line Items]
Restructuring charges			29,100
Expected restructuring charges	$ 1,300		$ 1,300
Q1 2024 Plan
Restructuring Cost And Reserve [Line Items]
Restructuring charges, net of reversals and impairment		$ 200		$ 2,900