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Long -Term Debt and Capital Leases - Narrative (Details) - USD ($)
$ in Thousands
1 Months Ended 12 Months Ended
Nov. 07, 2012
Feb. 29, 2012
Jun. 30, 2016
Jun. 30, 2015
Feb. 14, 2012
Oct. 21, 2011
Long Term Debt and Capital Leases (Additional Textual) [Abstract]            
Minimum Interest Rate Stated Percentage under Capital Lease with terms     1.60% 1.60%    
Maximum Interest Rate Stated Percentage under Capital Leases with terms     5.40% 5.40%    
Long-term Debt, Maturities, Repayments of Principal in Year Five     $ 400,000      
Future Principal Maturities of Long-term Debt Beyond 2020     299,800      
Capital Lease Obligations     $ 748 $ 1,771    
US Dollar Denominated Borrowings [Member]            
Long-Term Debt and Capital Leases (Textual) [Abstract]            
Debt Instrument, Interest Rate, Stated Percentage     1.20% 1.20%    
Euro Denominated Borrowings [Member]            
Long-Term Debt and Capital Leases (Textual) [Abstract]            
Debt Instrument, Interest Rate, Effective Percentage Rate Range, Minimum     0.90% 0.90%    
Debt Instrument, Interest Rate, Effective Percentage Rate Range, Maximum     1.10% 1.10%    
2.650% Senior Notes due 2019 [Member]            
Long-Term Debt and Capital Leases (Textual) [Abstract]            
Debt Instrument, Interest Rate, Stated Percentage 2.65%          
Debt Instrument, Unamortized Discount     $ 300 $ 300    
Long Term Debt and Capital Leases (Additional Textual) [Abstract]            
Proceeds from Issuance of Senior Long-term Debt $ 400,000          
3.875% Senior Unsecured Notes Due in 2022 [Member]            
Long-Term Debt and Capital Leases (Textual) [Abstract]            
Debt Instrument, Interest Rate, Stated Percentage         3.875%  
Debt Instrument, Unamortized Discount     200 200    
Long Term Debt and Capital Leases (Additional Textual) [Abstract]            
Proceeds from Issuance of Senior Long-term Debt   $ 300,000        
2011 Credit Agreement [Member]            
Long-Term Debt and Capital Leases (Textual) [Abstract]            
Maximum Borrowing Capacity under the 2011 Credit Agreement           $ 600,000
Borrowing outstanding under 2011 Credit Agreement     $ 0 $ 42,800    
Term of Long Term Debt     5 years