Income Taxes (Schedule of Provision for Income Tax Differ From the Amount of Income Tax) (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2022
Income Tax Disclosure [Abstract]
Taxes computed at statutory U.S. rate	$ 265,608	$ 231,349	$ 201,701
State income taxes, net of U.S. tax benefit	8,609	9,448	5,703
Research and development credit	(27,786)	(21,481)	(17,517)
Change in valuation allowance	849	(5,007)	858
Effect of non-U.S. tax rates	(15,838)	(3,982)	(4,384)
Foreign tax credits	(8,293)	(3,988)	(2,299)
Stock-based compensation expense	4,875	(6,282)	(11,294)
Other	15,823	4,051	8,278
Provision for income taxes	$ 243,847	$ 204,108	$ 181,046