Quarterly report pursuant to Section 13 or 15(d)

Equity and Long-Term Incentive Compensation Plans (Fair Value Assumptions) (Details)

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Equity and Long-Term Incentive Compensation Plans (Fair Value Assumptions) (Details) (USD $)
In Thousands, except Share data, unless otherwise specified
 3 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Aug. 31, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]      
ESPP maximum employee subscription rate 10.00%    
Employee stock purchase plan offering period 6 months    
Share-based compensation arrangement, discount from market price, lesser of commencement of offering period or purchase date 85.00%    
Share-based Compensation Arrangement, Fair Value Assumptions and Methodology [Abstract]      
Expected stock price volatility 23.50% 29.10%  
Risk-free interest rate 0.10% 0.10%  
Dividend yield 2.70% 2.90%  
Expected life (in years) 6 months 6 months  
Employee Stock Purchase Plan Additional Information [Abstract]      
Tax benefits realized by the Company in connection with the disqualifying dispositions of shares purchased under the ESPP $ 1,083 $ 786  
Weighted-average fair value per share based on Black-Scholes model $ 14.66 $ 11.80  
ESPP maximum annual share replenishment 2,000,000   2,000,000
Number of ESPP shares available for future issuance 2,900,000