The Company and Its Significant Accounting Policies - Segment Reporting (Details) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
|
Jun. 30, 2026
USD ($)
segment
|
Jun. 30, 2025
USD ($)
|
Jun. 30, 2024
USD ($)
|
|
| Organization Consolidation Basis Of Presentation Business Description And Accounting Policies [Line Items] | |||
| Number of operating segments | segment | 1 | ||
| Rewards and promotions expense | $ 347.6 | $ 272.0 | $ 219.8 |
| Percentage of revenue from non US customers | 0.02 | 0.02 | 0.02 |
| Income Statement Location: us-gaap:GeneralAndAdministrativeExpense | |||
| Organization Consolidation Basis Of Presentation Business Description And Accounting Policies [Line Items] | |||
| Rewards and promotions expense | $ 20.2 | $ 16.5 | $ 16.5 |