Stockholders' Equity (Narrative) (Details) (USD $)	1 Months Ended	3 Months Ended	12 Months Ended							12 Months Ended			12 Months Ended			12 Months Ended			12 Months Ended	0 Months Ended
	Aug. 30, 2010	Jun. 30, 2011	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2009	Aug. 05, 2010	May 27, 2009	Jun. 06, 2002	Apr. 30, 1997	Jun. 30, 2011 Maximum [Member]	Jun. 30, 2011 Maximum [Member] Employee Stock Purchase Plan [Member]	Nov. 18, 2009 Maximum [Member] Employee Stock Purchase Plan [Member]	Jun. 30, 2011 Minimum [Member]	Jun. 30, 2011 Minimum [Member] Employee Stock Purchase Plan [Member]	Nov. 18, 2009 Minimum [Member] Employee Stock Purchase Plan [Member]	Jun. 30, 2011 Employee Stock Purchase Plan [Member]	Jun. 30, 2010 Employee Stock Purchase Plan [Member]	Nov. 18, 2009 Employee Stock Purchase Plan [Member]	Jun. 30, 2011 June 6, 2002 Stock Repurchase Plan [Member]	May 27, 2009 May 27, 2009 Stock Repurchase Plan [Member]
Common stock authorized for issuance			22,921,650
Common shares repurchased		14,100,000	4,892,962	2,519,843															6,600,000	7,500,000
Common shares repurchased at cost		$ 504,600,000	$ 160,100,000	$ 135,800,000
Shares authorized to be repurchased under repurchase program							10,000,000	8,000,000
Remaining shares that can be repurchased under repurchase program		9,700,000	9,700,000
Percentage of stock dividend						100.00%
Additional shares issued for every share held by shareholders	1
Preferred stock, shares authorized		2,000,000	2,000,000	2,000,000					2,000,000
Preferred stock at par value		$ 0.01	$ 0.01	$ 0.01					$ 0.01
Preferred stock shares issued		0	0	0
Preferred stock shares outstanding		0	0
Employee tock purchase program offering period, months											27			3
Number of employee stock purchase plan offerings																2
Percentage of purchase price of common stock lower than the fair market value of common stock on the date of grant																85.00%
Percentage of purchase price of common stock lower than the fair market value of common stock on the date of purchase																85.00%
Common stock shares subscribed											25,000
Increase in number of shares of common stock available for grant																		600,000
Number of shares of common stock available for grant												1,100,000			500,000
Number of securities remaining available for future issuance		5,286,658	5,286,658								1,080,000			540,000		775,000
Stock issued under Employee Stock Purchase Plans			8,237,000													305,000	324,000
Expected weighted average period of unrecognized compensation costs related to unvested stock-based compensation arrangements			2.8
Unrecognized compensation costs related to unvested stock-based compensation arrangements		60,200,000	60,200,000
Aggregate intrinsic value of the stock-based compensation arrangements exercisable		97,700,000	97,700,000
Aggregate intrinsic value of the stock-based compensation arrangements outstanding		195,900,000	195,900,000
Stock compensation expense			30,809,000	29,734,000	25,515,000											2,400,000	1,900,000
Stock option and restricted stock units expiration period, years			7
Stock option and restricted stock units vesting period, years										4			1
Reduction in the number of shares of common stock available for issuance		2.0	2.0
Weighted average remaining contractual terms of options outstanding		4.63	4.63	4.44
Aggregate intrinsic value of the options exercised			$ 66,400,000	$ 65,300,000	$ 17,800,000
Maximum number of shares subject to awards granted		3,000,000	3,000,000
Number of common stock shares granted		4,500,000	4,500,000
Exercisable shares, netted for tax			68,127