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Debt (Tables)
 3 Months Ended
Sep. 30, 2016
Debt Disclosure [Abstract]  
Schedule of long-term debt
    September 30,
2016		     June 30,
 2016		  
             
Convertible Senior Notes, net   $ 117,261     $ 115,829  
Mortgage     2,911       2,960  
      120,172       118,789  
Less current portion     197       197  
    $ 119,975     $ 118,592  
Schedule of carrying value of convertible senior notes

 

    September 30,
2016		     June 30,
2016		  
             
Principal amount   $ 143,750     $ 143,750  
Unamortized debt discount     (23,044 )     (24,267 )
Unamortized debt issuance costs     (3,445 )     (3,654 )
Net carrying value   $ 117,261     $ 115,829  
Schedule of components of total interest expense related to notes
    Three months
Ended
September 30,
2016		        
               
Contractual coupon   $ 725        
Amortization of debt discount     1,223          
Amortization of debt issuance costs     209          
    $ 2,157