Changes in Accumulated Other Comprehensive Income by Component - Summary of Reclassifications Out of AOCI (Details) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Jun. 30, 2015 |
Jun. 30, 2014 |
Jun. 30, 2013 |
|
| Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] | |||
| Tax benefit | $ 0.7 | $ 0.5 | $ (0.9) |
| Amortization of loss, net of tax | (0.3) | (0.3) | (0.5) |
| Pension and Post-Retirement Liabilities [Member] | |||
| Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] | |||
| Amortization of loss, net of tax | (0.3) | (0.3) | (0.5) |
| Pension and Post-Retirement Liabilities [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | |||
| Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] | |||
| Amortization of loss reclassified into Selling, general and administrative expenses | 0.5 | 0.5 | 0.8 |
| Tax benefit | (0.2) | (0.2) | (0.3) |
| Amortization of loss, net of tax | $ 0.3 | $ 0.3 | $ 0.5 |