Share-Based Payments - Long term Incentive Plan (Details) - Long term Incentive Plan (LTIP) |
Jun. 30, 2015 |
|---|---|
| Disclosure of terms and conditions of share-based payment arrangement [line items] | |
| Banked period | 5 years |
| Vesting period | 3 years |
| Expiration Period Tranche One | |
| Disclosure of terms and conditions of share-based payment arrangement [line items] | |
| Expiration period | 10 years |
| Expiration Period Tranche Two | |
| Disclosure of terms and conditions of share-based payment arrangement [line items] | |
| Expiration period | 5 years |