Quarterly report pursuant to Section 13 or 15(d)

Equity and Long-Term Incentive Compensation Plans - Restricted Stock Units (Details)

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Equity and Long-Term Incentive Compensation Plans - Restricted Stock Units (Details) - Restricted stock units - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Weighted-average grant date fair value per unit (in dollars per share) $ 118.47 $ 88.96
Grant date fair value of vested restricted stock units $ 36,072 $ 36,534
Tax benefits realized by the Company in connection with vested and released restricted stock units $ 6,918 $ 18,412