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Share-Based Compensation - Schedule of Nonvested Restricted Stock Unit Activity (Parenthetical) (Detail) (Red Bend Ltd. [Member])
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9 Months Ended |
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Mar. 31, 2015
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |
| Restricted stock units vested | 58,137 |
| Restricted Stock [Member] | |
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |
| Restricted stock units granted | 76,563 |
| Restricted stock units vested | 58,137 |