Quarterly report pursuant to Section 13 or 15(d)

Note 9 - Share-based Compensation (Details Textual)

v3.19.1
Note 9 - Share-based Compensation (Details Textual) - USD ($)
$ / shares in Units, $ in Millions
3 Months Ended 9 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Mar. 31, 2019
Mar. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross     900,000 1,100,000
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price     $ 173.89 $ 120.34
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value     $ 34.66 $ 21.98
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period     263,995 139,602
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value     $ 22.3 $ 6.3
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total $ 32.1   $ 32.1  
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition     2 years 36 days  
Selling, General and Administrative Expenses [Member]        
Share-based Payment Arrangement, Expense $ 5.7 $ 4.7 $ 24.2 $ 13.6
Restricted Stock Units (RSUs) [Member]        
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period     56,403 65,924
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value     $ 170.96 $ 128.30
Restricted Stock [Member]        
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period     14,877 20,106
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value     $ 177.93 $ 125.05