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Long Term Debt - Additional Information (Details) - USD ($)
3 Months Ended 9 Months Ended
Mar. 31, 2017
Feb. 22, 2017
Jan. 26, 2017
Jan. 13, 2017
Jan. 16, 2014
Mar. 31, 2017
Mar. 31, 2016
Mar. 31, 2017
Mar. 31, 2016
Feb. 01, 2017
Jan. 31, 2017
Dec. 20, 2016
Jun. 30, 2016
Debt Instrument [Line Items]                          
Proceeds from line of credit               $ 225,000,000 $ 0        
Long-term debt $ 2,649,060,000         $ 2,649,060,000   2,649,060,000         $ 2,180,000,000
Debt issuance costs 34,231,000         34,231,000   34,231,000         34,013,000
Write off of unamortized debt issuance costs               833,000 0        
Term Loan B                          
Debt Instrument [Line Items]                          
Credit agreement, maximum capacity         $ 800,000,000                
Term loan period, years         7 years                
Term loan quarterly repayment as percentage of principal         0.25%                
Interest addition to floating rate   0.00%     0.75%                
Interest expense           6,000,000 $ 6,400,000 19,000,000 19,500,000        
Long-term debt 774,060,000         774,060,000   774,060,000         780,000,000
Debt issuance costs $ 800,000         800,000   800,000          
Write off of unamortized debt issuance costs           800,000   800,000          
Term Loan B | LIBOR                          
Debt Instrument [Line Items]                          
Interest addition to floating rate 2.00% 2.00%     2.50%                
Senior Notes | Senior Notes 2026                          
Debt Instrument [Line Items]                          
Interest expense           12,500,000 0 30,700,000 0        
Long-term debt $ 850,000,000         850,000,000   850,000,000         600,000,000
Debt issuance costs                       $ 3,700,000  
Line of Credit | Revolver                          
Debt Instrument [Line Items]                          
Credit agreement, maximum capacity                   $ 450,000,000 $ 300,000,000    
Interest expense           1,300,000 $ 0 1,300,000 $ 0        
Proceeds from line of credit     $ 25,000,000 $ 200,000,000                  
Long-term debt 225,000,000         225,000,000   225,000,000         $ 0
Debt issuance costs, revolver $ 500,000         $ 500,000   $ 500,000