Current report filing

Stockholders' equity - Initial Public Offering (Details)

v3.5.0.2
Stockholders' equity - Initial Public Offering (Details)
$ in Thousands
 12 Months Ended
May 11, 2015
GBP (£)
shares
May 11, 2015
USD ($)
shares
Jun. 30, 2015
USD ($)
shares
Jun. 30, 2014
USD ($)
shares
Jun. 30, 2013
USD ($)
shares
Stockholders' equity          
Issuance of stock       $ 15,812 $ 6,599
Proceeds from issuance of common stock   $ 175,989 $ 175,989    
Initial Public Offering          
Stockholders' equity          
Issuance of American Depositary Shares (in shares) | shares 11,250,000 11,250,000      
Issuance of stock     175,989    
Common stock          
Stockholders' equity          
Issuance of stock (in shares) | shares       70,208,600 29,638,000
Issuance of stock       $ 112 $ 48
Stock issuance costs   $ 13,387 $ 13,387    
Common stock | Initial Public Offering          
Stockholders' equity          
Issuance of stock (in shares) | shares 67,500,000 67,500,000 67,500,000    
Issuance of stock £ 67,500 $ 104 $ 104