Share-Based Compensation - Schedule of Nonvested Restricted Stock Unit Activity (Parenthetical) (Detail) (Red Bend Ltd. [Member])
9 Months Ended
Mar. 31, 2015
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