Property, Plant and Equipment, Net - Schedule of Property, Plant and Equipment at Cost and Accumulated Depreciation (Detail) - USD ($) $ in Millions |
Jun. 30, 2015 |
Jun. 30, 2014 |
|---|---|---|
| Property, Plant and Equipment [Line Items] | ||
| Property, plant and equipment, gross | $ 493.2 | $ 452.5 |
| Less: Accumulated depreciation | (395.9) | (364.2) |
| Property, plant and equipment, net | 97.3 | 88.3 |
| Land and buildings [Member] | ||
| Property, Plant and Equipment [Line Items] | ||
| Property, plant and equipment, gross | 4.9 | 4.9 |
| Equipment [Member] | ||
| Property, Plant and Equipment [Line Items] | ||
| Property, plant and equipment, gross | 317.4 | 280.9 |
| Furniture, leaseholds and other [Member] | ||
| Property, Plant and Equipment [Line Items] | ||
| Property, plant and equipment, gross | $ 170.9 | $ 166.7 |