Fair Value of Financial Instruments - Schedule of Changes in Level 3 Financial Liabilities (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Dec. 31, 2023 |
Dec. 31, 2022 |
Dec. 31, 2023 |
Dec. 31, 2022 |
|
| Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] | ||||
| Beginning balance | $ 12.9 | $ 12.9 | $ 12.0 | $ 12.9 |
| Net increase in contingent consideration liability | 0.0 | (0.5) | 0.8 | (0.5) |
| Foreign currency impact on contingent consideration liability | (0.2) | (0.3) | (0.1) | (0.4) |
| Payments | (5.2) | 0.0 | (5.2) | 0.0 |
| Ending balance | $ 7.6 | $ 12.0 | $ 7.6 | $ 12.0 |