XML 117 R95.htm IDEA: XBRL DOCUMENT v3.7.0.1
Stock-Based Compensation - Assumptions Used in Black-Scholes Valuation for Grants (Details) - Stock Option [Member]
12 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Assumptions used in valuation of stock options    
Risk-free interest rate 1.40% 1.50%
Expected life (years) [1] 4 years 6 months 4 years 6 months
Expected volatility [2] 31.70% 32.50%
Expected dividend yield 2.10% 1.70%
[1] Expected life is derived from historical experience.
[2] Expected volatility is based on the implied historical volatility of our stock.