Stockholders' Equity (Schedule Of Option Activity) (Details) - $ / shares shares in Thousands	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Stockholders' Equity [Abstract]
Options, Outstanding at beginning of period	1,068
Options, Granted	56
Options, Exercised	(64)
Options, Forfeited
Options, Outstanding at end of period	1,060	1,068
Options exercisable at end of period	804
Options vested and expected to vest at end of period	1,050
Weighted Average Exercise Price, Outstanding at beginning of period	$ 89.05
Weighted Average Exercise Price, Granted	210.18
Weighted Average Exercise Price, Exercised	62.05
Weighted Average Exercise Price, Forfeited
Weighted Average Exercise Price, Outstanding at end of period	97.01	$ 89.05
Weighted Average Exercise Price, Options exercisable at end of period	82.11
Weighted Average Exercise Price, Options vested and expected to vest at end of period	$ 96.37
Weighted Average Remaining Contractual Term in Years, Outstanding at end of period	3 years 8 months 12 days	4 years 4 months 24 days
Weighted Average Remaining Contractual Term in Years, Options exercisable at end of period	3 years 2 months 12 days
Weighted Average Remaining Contractual Term in Years, Options vested and expected to vest at end of period	3 years 8 months 12 days