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The Company and Significant Accounting Policies - Government Grants (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2024	Mar. 31, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Government Grants, Reduction Recorded To Property, Plant And Equipment and Operating Expenses	$ 0.4	$ 0.0	$ 0.8	$ 0.6
Government Grants, Reduction Recorded To Operating Expenses		$ 0.0		$ 0.1

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Government Grants, Reduction Recorded To Operating Expenses

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Government Grants, Reduction Recorded To Property, Plant And Equipment and Operating Expenses

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