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Note 10 - Share-based Compensation | 3 Months Ended
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Sep. 30, 2019
Notes to Financial Statements |
Share-based Payment Arrangement [Text Block] | Note 10. Share-based Compensation: During the quarter ended September 30, 2019 and 2018, the Company granted 0.7 million and 0.9 million stock options at weighted average grant prices of $190.39 and $173.33 and weighted average fair values of $36.72 and $34.30, respectively. During the quarter ended September 30, 2019 and 2018, the Company granted 30,858 and 53,903 restricted stock units at a weighted average fair value of $192.08 and $170.74, respectively. During the quarter ended September 30, 2019 and 2018, the Company granted 11,438 and 11,279 shares of restricted common stock shares at a weighted average fair value of $190.65 and $177.32. Stock options for 93,596 and 166,577 shares of common stock with total intrinsic values of $11.6 million and $14.9 million were exercised during the quarter ended September 30, 2019 and 2018, respectively. Stock-based compensation expense of $8.4 million and $11.6 million was included in selling, general and administrative expenses for the quarter ended September 30, 2019 and 2018, respectively. As of September 30, 2019, there was $45.7 million of unrecognized compensation cost related to non-vested stock options, non-vested restricted stock units and non-vested restricted stock. The weighted average period over which the compensation cost is expected to be recognized is 2.1 years.

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