SHARE-BASED COMPENSATION (Details) (USD $)	3 Months Ended
	Sep. 30, 2011	Sep. 30, 2010
Employee Stock Purchase Plan
Share-Based Compensation
Maximum percentage of eligible earnings that can be contributed by the eligible employee (as a percent)	10.00%
Purchase price expressed as percentage of fair market value of common stock (as a percent)	85.00%
Shares purchased by the employees (in shares)	23,442	19,572
Approximate value of shares purchased by the employees	$ 600,000	$ 500,000
Stock options
Stock options activity
Balance at the beginning of the period (in shares)	3,682,000
Granted (in shares)	14,000
Exercised (in shares)	(73,000)
Forfeited or expired (in shares)	(20,000)
Balance at the end of the period (in shares)	3,603,000
Exercisable at the end of the period (in shares)	2,751,000
Weighted Average Exercise Price
Balance at the beginning of the period (in dollars per share)	$ 24.45
Granted (in dollars per share)	$ 33.82
Exercised (in dollars per share)	$ 18.84
Forfeited or expired (in dollars per share)	$ 34.06
Balance at the end of the period (in dollars per share)	$ 24.54
Exercisable at the end of the period (in dollars per share)	$ 21.31
Weighted Average Remaining Contractual Term
Options outstanding at the end of the period (in years)	3.62
Options exercisable at the end of the period (in years)	3.10
Aggregate Intrinsic Value
Balance at the beginning of the period	60,558,000
Balance at the end of the period	19,074,000
Exercisable at the end of the period	$ 18,242,000
Restricted Stock
Restricted stock and RSU activity
Balance at the beginning of the period (in shares)	337,000
Granted (in shares)	73,000
Released (in shares)	(15,000)
Balance at the end of the period (in shares)	395,000
Weighted Average Grant Date Fair Value
Balance at the beginning of the period (in dollars per share)	$ 38.42
Granted (in dollars per share)	$ 40.84
Released (in dollars per share)	$ 33.98
Balance at the end of the period (in dollars per share)	$ 39.04
Restricted stock units
Restricted stock and RSU activity
Balance at the beginning of the period (in shares)	600,000
Released (in shares)	(15,000)
Balance at the end of the period (in shares)	585,000
Vested at the end of the period (in shares)	534,000
Weighted Average Grant Date Fair Value
Balance at the beginning of the period (in dollars per share)	$ 18.92
Released (in dollars per share)	$ 42.01
Balance at the end of the period (in dollars per share)	$ 18.32
Vested at the end of the period (in dollars per share)	$ 16.04