Shareholders' Equity and Share-Based Compensation - Summary of Stock Option Activity (Detail) (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Jun. 30, 2014	Jun. 30, 2013
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Outstanding at June 30, 2013, Shares	2,124,032
Granted, Shares	455,626
Exercised, Shares	(1,030,452)
Forfeited or expired, Shares	(129,608)
Outstanding at June 30, 2014, Shares	1,419,598	2,124,032
Exercisable at June 30, 2014, Shares	554,972
Outstanding at June 30, 2013, Weighted Average Exercise Price Per Share	$ 57.67
Granted, Weighted Average Exercise Price Per Share	$ 66.92
Exercised, Weighted Average Exercise Price Per Share	$ 50.10
Forfeited or expired, Weighted Average Exercise Price Per Share	$ 60.10
Outstanding at June 30, 2014, Weighted Average Exercise Price Per Share	$ 65.90	$ 57.67
Exercisable at June 30, 2014, Weighted Average Exercise Price Per Share	$ 83.10
Outstanding at June 30, 2013, Weighted Average Remaining Contractual Term (Years)	6 years 8 months 12 days	6 years 3 months 15 days
Exercisable at June 30, 2014, Weighted Average Remaining Contractual Term (Years)	4 years 15 days
Outstanding at June 30, 2013, Aggregate Intrinsic Value	$ 21,077
Outstanding at June 30, 2014, Aggregate Intrinsic Value	62,204	21,077
Exercisable at June 30, 2014, Aggregate Intrinsic Value	$ 16,749