XML 117 R98.htm IDEA: XBRL DOCUMENT v3.10.0.1
STOCK-BASED COMPENSATION - Schedule of Fair Value using Black-Scholes Option Pricing Model (Details) - 2013 Equity Incentive Plan - Stock options - USD ($)
12 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Expected life 6 years 6 years 6 years
Expected dividend $ 0 $ 0 $ 0
Expected dividend rate used for stock options granted 0.00%    
Minimum      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Expected volatility 29.40% 32.00% 32.70%
Risk-free interest rate 1.90% 1.30% 1.20%
Weighted average option grant date fair value (in dollars per share) $ 9.48 $ 10.48 $ 11.11
Risk-free rate interpolated 5 years    
Maximum      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Expected volatility 32.30% 33.00% 33.50%
Risk-free interest rate 2.90% 2.10% 1.80%
Weighted average option grant date fair value (in dollars per share) $ 11.42 $ 12.00 $ 12.40
Risk-free rate interpolated 7 years