Stockholders' Equity - Restricted Stock Units (Details) - Restricted Stock Units (RSUs) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2022
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Granted (dollars per share)	$ 90.90	$ 120.25	$ 202.79
Fair value of shares vested	$ 145.1	$ 197.3	$ 118.9
Minimum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting term	1 year
Maximum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting term	4 years