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 6 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2013
Dec. 31, 2012
Jun. 30, 2010
ESPP maximum employee subscription rate 10.00%   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%        
ESPP maximum annual share replenishment 2,000,000   2,000,000    
Number of ESPP shares available for future issuance 1,200,000   1,200,000    
Share-based Compensation Arrangement, Fair Value Assumptions and Methodology [Abstract]          
Expected stock price volatility 29.10% 30.20% 29.10% 30.20%  
Risk-free interest rate 0.10% 0.10% 0.10% 0.10%  
Dividend yield 2.90% 3.30% 2.90% 3.30%  
Expected life of options 6 months 6 months 6 months 6 months  
Employee Stock Purchase Plan Additional Information [Abstract]          
Total cash received from employees for the issuance of shares under the ESPP $ 22,035 $ 20,139 $ 22,035 $ 20,139  
Number of shares purchased by employees through the ESPP 469,000 496,000 469,000 496,000  
Tax benefits realized by the Company in connection with the disqualifying dispositions of shares purchased under the ESPP $ 87 $ 68 $ 873 $ 674  
Weighted-average fair value per share based on Black-Scholes model $ 11.80 $ 10.54 $ 11.80 $ 10.54