Quarterly report pursuant to Section 13 or 15(d)

Note 9 - Share-based Compensation (Details Textual)

v3.10.0.1
Note 9 - Share-based Compensation (Details Textual) - USD ($)
$ / shares in Units, $ in Millions
3 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross 900,000 600,000
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price $ 173.33 $ 114.60
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value $ 34.30 $ 20.47
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period 166,577 32,625
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value $ 14.9 $ 0.9
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Total $ 42.7  
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition 2 years 146 days  
Selling, General and Administrative Expenses [Member]    
Allocated Share-based Compensation Expense, Total $ 11.6 $ 3.8
Restricted Stock Units (RSUs) [Member]    
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period 53,903 500
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value $ 170.74 $ 122.57
Restricted Stock [Member]    
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period 11,279 0
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value $ 177.32