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LONG-TERM DEBT - Narrative (Details)
9 Months Ended
Mar. 31, 2016
USD ($)
Jul. 14, 2015
USD ($)
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Mar. 31, 2016
USD ($)
Jul. 26, 2006
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Debt Instrument [Line Items]        
Stock authorized to repurchase under stock repurchase program (in shares) | shares       4,000,000
Maximum        
Debt Instrument [Line Items]        
Leverage ratio 2.50 2.50 2.50  
Minimum        
Debt Instrument [Line Items]        
Leverage ratio 1.00 1.00 1.00  
Common Stock Repurchase Plan        
Debt Instrument [Line Items]        
Stock authorized to repurchase under stock repurchase program (in shares) | shares   20,000,000    
Senior secured revolving credit facility | Line of credit        
Debt Instrument [Line Items]        
Debt term   5 years    
Credit facility   $ 800,000,000    
Amount outstanding under credit facility $ 300,000,000   $ 300,000,000  
Commitment fee percentage     0.30%  
Debt default, acceleration clause, required consent percentage   50.00%    
Unamortized debt issuance costs 5,800,000 $ 6,600,000 $ 5,800,000  
Senior secured revolving credit facility | Line of credit | Prepaid Expenses and Other Current Assets        
Debt Instrument [Line Items]        
Unamortized debt issuance costs 1,400,000   1,400,000  
Senior secured revolving credit facility | Line of credit | Other assets        
Debt Instrument [Line Items]        
Unamortized debt issuance costs $ 4,400,000   $ 4,400,000  
Senior secured revolving credit facility | Line of credit | Maximum        
Debt Instrument [Line Items]        
Commitment fee percentage 0.35%      
Senior secured revolving credit facility | Line of credit | Maximum | Foreign Subsidiaries        
Debt Instrument [Line Items]        
Voting stock pledge limit for any foreign subsidiary   65.00%    
Senior secured revolving credit facility | Line of credit | Minimum        
Debt Instrument [Line Items]        
Commitment fee percentage 0.20%      
Senior secured revolving credit facility | Line of credit | Federal funds effective rate        
Debt Instrument [Line Items]        
Interest rate in excess of effective rate   0.50%    
Senior secured revolving credit facility | Line of credit | LIBOR        
Debt Instrument [Line Items]        
Interest rate in excess of effective rate   1.00%    
Senior secured revolving credit facility | Line of credit | LIBOR | LIBOR loans        
Debt Instrument [Line Items]        
Interest rate in excess of effective rate   1.75%    
Senior secured revolving credit facility | Line of credit | LIBOR | LIBOR loans | Maximum        
Debt Instrument [Line Items]        
Interest rate in excess of effective rate   2.00%    
Senior secured revolving credit facility | Line of credit | LIBOR | LIBOR loans | Minimum        
Debt Instrument [Line Items]        
Interest rate in excess of effective rate   1.25%    
Senior secured revolving credit facility | Line of credit | Base rate | Base rate loans        
Debt Instrument [Line Items]        
Interest rate in excess of effective rate   0.75%    
Senior secured revolving credit facility | Line of credit | Base rate | Base rate loans | Maximum        
Debt Instrument [Line Items]        
Interest rate in excess of effective rate   1.00%    
Senior secured revolving credit facility | Line of credit | Base rate | Base rate loans | Minimum        
Debt Instrument [Line Items]        
Interest rate in excess of effective rate   0.25%    
Letter of credit sub-facility | Line of credit        
Debt Instrument [Line Items]        
Credit facility   $ 50,000,000