Stockholders' Equity (Schedule Of Total Stock-Based Compensation Costs Incurred And Associated Tax Benefit) (Details) (USD $) In Thousands	12 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2009
Stock-based compensation costs	$ 30,809	$ 29,734	$ 25,515
Tax benefit	(9,474)	(8,985)	(7,016)
Stock-based compensation costs, net of tax benefit	21,335	20,749	18,499
Cost Of Sales - Capitalized As Part Of Inventory [Member]
Stock-based compensation costs	1,496	1,354	996
Selling, General And Administrative Expenses [Member]
Stock-based compensation costs	26,163	25,682	21,704
Research And Development Expenses [Member]
Stock-based compensation costs	$ 3,150	$ 2,698	$ 2,815