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Stock-Based Compensation (Details) (Stock Option [Member])
12 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Jun. 30, 2011
Stock Option [Member]
     
Assumptions used in valuation of stock options      
Risk-free interest rate 0.60% 1.10% 1.40%
Expected life (years) 4 years 6 months [1] 4 years 6 months [1] 4 years 6 months [1]
Expected volatility 49.50% [2] 47.60% [2] 47.00% [2]
Expected dividend yield 1.50% 1.50% 2.00%
[1] Expected life is derived from historical experience.
[2] Expected volatility is based on the implied historical volatility of our stock.