Annual report pursuant to Section 13 and 15(d)

Stockholders' Equity (Weighted Average Assumptions) (Details)

v3.7.0.1
Stockholders' Equity (Weighted Average Assumptions) (Details)
12 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]    
Average volatility (in percentage) 39.00% 41.30%
Risk-free interest rate (in percentage) 1.50% 1.50%
Weighted-average expected life (in years) 5 years 11 months 12 days 6 years 3 months 7 days
Estimated dividend quarterly yield rate (in percentage) 0.40% 0.40%
Estimated dividend annual yield rate (in percentage) 1.70% 1.60%