Outstanding and Exercisable Options by Price Range (Detail) (USD $)	12 Months Ended
	Jun. 30, 2013
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Prices, lower limit	$ 9.44
Range of Exercise Prices, upper limit	$ 42.61
Options Outstanding Number of Options Outstanding	2,570,923
Options Outstanding Weighted- Average Remaining Life (Years)	4 years 5 months 23 days
Options Outstanding Weighted- Average Exercise Price	$ 26.87
Options Exercisable Number of Options Exercisable	1,861,183
Options Exercisable Weighted- Average Exercise Price	$ 24.53
Range One
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Prices, lower limit	$ 9.44
Range of Exercise Prices, upper limit	$ 20.82
Options Outstanding Number of Options Outstanding	447,220
Options Outstanding Weighted- Average Remaining Life (Years)	3 years 3 months 26 days
Options Outstanding Weighted- Average Exercise Price	$ 15.99
Options Exercisable Number of Options Exercisable	437,715
Options Exercisable Weighted- Average Exercise Price	$ 15.94
Range Two
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Prices, lower limit	$ 21.04
Range of Exercise Prices, upper limit	$ 25.68
Options Outstanding Number of Options Outstanding	777,248
Options Outstanding Weighted- Average Remaining Life (Years)	4 years 3 months 29 days
Options Outstanding Weighted- Average Exercise Price	$ 22.37
Options Exercisable Number of Options Exercisable	615,744
Options Exercisable Weighted- Average Exercise Price	$ 22.58
Range Three
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Prices, lower limit	$ 26.11
Range of Exercise Prices, upper limit	$ 29.68
Options Outstanding Number of Options Outstanding	828,487
Options Outstanding Weighted- Average Remaining Life (Years)	4 years 10 months 28 days
Options Outstanding Weighted- Average Exercise Price	$ 29.29
Options Exercisable Number of Options Exercisable	633,083
Options Exercisable Weighted- Average Exercise Price	$ 29.32
Range Four
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Prices, lower limit	$ 30.48
Range of Exercise Prices, upper limit	$ 37.11
Options Outstanding Number of Options Outstanding	229,101
Options Outstanding Weighted- Average Remaining Life (Years)	2 years 11 months 27 days
Options Outstanding Weighted- Average Exercise Price	$ 34.78
Options Exercisable Number of Options Exercisable	174,641
Options Exercisable Weighted- Average Exercise Price	$ 35.56
Range Five
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Prices, lower limit	$ 42.41
Range of Exercise Prices, upper limit	$ 42.61
Options Outstanding Number of Options Outstanding	288,867
Options Outstanding Weighted- Average Remaining Life (Years)	6 years 7 months 13 days
Options Outstanding Weighted- Average Exercise Price	$ 42.59