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Long-term Debt (Detail Textuals 1) (USD $)
Share data in Millions, except Per Share data, unless otherwise specified
 9 Months Ended 9 Months Ended 9 Months Ended 9 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Jun. 30, 2013
Dec. 31, 2013
Cash Flow Hedging
Interest Rate Swap Agreements
Interest rate swap agreement three
Mar. 31, 2014
Minimum
Warrants
Call Options
Mar. 31, 2014
Maximum
Warrants
Call Options
Mar. 31, 2014
Convertible Notes Payable
May 16, 2007
Convertible Notes Payable
Mar. 31, 2014
Convertible Notes Payable
Call Options
Mar. 31, 2014
Convertible Notes Payable
Non-Cash Interest Expense
Mar. 31, 2014
Convertible Notes Payable
Warrants
Debt Instrument [Line Items]                      
Initial conversion price per share         $ 54.65 $ 68.31          
Effective interest rate for the notes             6.90%        
Proceed from notes payable             $ 300,000,000        
Fair value of the liability component of notes               221,900,000      
Fair value of equity component note             78,100,000        
Debt discount amortization period             7 years        
Unamortized debt discount 1,176,000   11,421,000                
Fair value of the notes 418,500,000                    
Total debt issuance costs 13,368,000 612,000         7,800,000        
Initial debt issuance costs             5,800,000        
Debt issuance costs attributable to conversion option             2,000,000        
Proceeds from sale of notes receivable             45,500,000        
Repurchases of common stock, shares             1        
Purchase of call option                 84,400,000    
Purchase of common stock                 5.5    
Income tax benefit on discount on issue of notes             32,800,000        
Deferred tax liability                   30,700,000  
Common shares issuable under the sale of warrants             5.5        
Warrant's exercise price 68.31                   68.31
Proceeds from sales of warrant                     56,500,000
Swap agreements       $ 400,000,000