Share-Based Compensation (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Mar. 31, 2012	Mar. 31, 2011	Mar. 31, 2012	Mar. 31, 2011
Share-based compensation and the related tax benefit recognized in consolidated statement of income
Total	$ 8,997	$ 8,351	$ 25,663	$ 25,708
Tax benefit realized from share-based compensation	2,539	2,347	7,419	7,426
Cost of revenue [Member]
Share-based compensation and the related tax benefit recognized in consolidated statement of income
Total	313	355	903	1,032
Research and Development [Member]
Share-based compensation and the related tax benefit recognized in consolidated statement of income
Total	3,769	3,377	11,209	10,129
Selling General and Administrative [Member]
Share-based compensation and the related tax benefit recognized in consolidated statement of income
Total	$ 4,915	$ 4,619	$ 13,551	$ 14,547