Income Taxes (Schedule Of Provision For Income Tax Differ From The Amount Of Income Tax) (Details) - USD ($) $ in Thousands		12 Months Ended
		Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017
Income Taxes [Abstract]
Taxes computed at statutory U.S. rate		$ 108,958	$ 146,280	$ 146,560
Transition tax		6,038	126,753
State income taxes, net of U.S. tax benefit		2,186	2,427	(1,294)
Research and development credit		(12,953)	(4,089)	(2,804)
Change in statutory tax rates			16,685
Tax effect of dividends				97,662
Change in valuation allowance		(1,118)	(2,962)	4,021
Effect of non-U.S. tax rates		25,045	(70,250)	(97,141)
Foreign tax credits	[1]	(7,806)	(6,473)	(67,689)
Stock-based compensation expense		(11,534)	(7,045)	(3,107)
Other		5,439	4,398	251
Provision for income taxes		$ 114,255	205,724	$ 76,459
Foreign tax credit included as a reduction in transition tax			$ 75,500

[1] In fiscal year 2018, $75.5 million of the foreign tax credit is included as a reduction in the transition tax.