Property, Plant and Equipment, Net - Additional Information (Details) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Jun. 30, 2019 |
Jun. 30, 2018 |
Jun. 30, 2017 |
|
| Property, Plant and Equipment [Abstract] | |||
| Reduction in accumulated depreciation | $ (32.8) | $ (40.3) | |
| Depreciation expense for Property, plant and equipment | $ 65.8 | $ 63.4 | $ 53.5 |