The Company and Its Significant Accounting Policies - Accrued Rewards (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2023
Sales and Marketing Expenses
Organization Consolidation Basis Of Presentation Business Description And Accounting Policies [Line Items]
Rewards and promotions expense	$ 272.0	$ 219.8	$ 173.9
Other Accruals and Current Liabilities
Organization Consolidation Basis Of Presentation Business Description And Accounting Policies [Line Items]
Accrued rewards and promotions liability	$ 87.6	$ 67.7