Stock And Employee Benefit Plans (Narrative) (Details) - USD ($)	12 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2013
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay	95.00%
Defined Contribution Plan, Employer Matching Contribution, Percent of Match	100.00%
Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent	3.00%
Defined Contribution Plan, Maximum Annual Contributions Per Employee, Amount	$ 3,000
Defined Contribution Plan, Employers Matching Contribution, Annual Vesting Percentage	20.00%
Vesting period of employer contributions	P5Y
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested in Period, Fair Value	$ 3,900,000	$ 4,000,000	$ 4,600,000
Recognized tax benefit related to stock compensation expense	5,600,000	4,400,000	3,100,000
Unearned stock-based compensation expense related to unvested awards	$ 34,000,000
Recognition term of unearned stock-based compensation expense, in years	2 years 7 months 6 days
Employer contributions to plan	$ 10,700,000	$ 9,600,000	$ 8,600,000
2001 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized	2,000,000
2010, 2007, and 2005 Plans [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized	9,000,000
ESPP [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized	1,800,000