Summary of Options Activity (Detail) (Stock Option [Member], USD $) In Thousands, except Share data, unless otherwise specified	6 Months Ended
	Dec. 31, 2013
Stock Option [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Options, Outstanding at beginning of period	3,327,668
Options Granted	556,050
Options Exercised	(153,645)
Options Forfeited	(14,746)
Options Expired	(40,804)
Options, Outstanding at end of period	3,674,523
Options Outstanding, Exercisable	2,246,701
Weighted Average Exercise Price at beginning of period	$ 32.64
Weighted Average Exercise Price, Options Granted	$ 28.32
Weighted Average Exercise Price, Options Exercised	$ 22.67
Weighted Average Exercise Price, Options Forfeited	$ 24.48
Weighted Average Exercise Price, Options Expired	$ 40.21
Weighted Average Exercise Price at end of period	$ 32.37
Weighted Average Exercise Price, Exercisable	$ 35.82
Weighted Average Remaining Contractual Life, Outstanding at end of period	6 years 3 months 11 days
Weighted Average Remaining Contractual Life, Exercisable	4 years 8 months 16 days
Aggregate Intrinsic Value, Outstanding at end of period	$ 25,465
Aggregate Intrinsic Value, Exercisable	$ 11,742