Share-Based Compensation (Summary Of Stock Option Activity) (Detail) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Sep. 30, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Outstanding at June 30, 2012, Shares	2,410,718
Granted, Shares	458,675
Exercised, Shares	(382,142)
Forfeited or expired, Shares	(35,586)
Outstanding at September 30, 2012, Shares	2,451,665
Exercisable at September 30, 2012, Shares	1,385,404
Outstanding at June 30, 2012, Weighted Average Exercise Price Per Share	$ 54.71
Granted, Weighted Average Exercise Price Per Share	$ 47.47
Exercised, Weighted Average Exercise Price Per Share	$ 32.82
Forfeited or expired, Weighted Average Exercise Price Per Share	$ 41.11
Outstanding at September 30, 2012, Weighted Average Exercise Price Per Share	$ 57.04
Exercisable at September 30, 2012, Weighted Average Exercise Price Per Share	$ 68.24
Outstanding at June 30, 2012, Weighted Average Remaining Contractual Term (Years)	6 years 5 months 1 day
Outstanding at September 30, 2012, Weighted Average Remaining Contractual Term (Years)	6 years 10 months 2 days
Exercisable at September 30, 2012, Weighted Average Remaining Contractual Term (Years)	5 years 2 months 9 days
Outstanding at June 30, 2012, Average Intrinsic Value	$ 9,359
Outstanding at September 30, 2012, Average Intrinsic Value	12,825
Exercisable at September 30, 2012, Average Intrinsic Value	$ 6,945