Share-Based Compensation - Outstanding and Exercisable Options (Detail)	12 Months Ended
	Jun. 30, 2020 $ / shares shares
Stock Options and Cash-Based Stock    Appreciation Rights
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range [Line Items]
Stock Options and Cash-Based Stock Appreciation Rights Outstanding, Number of Shares (in shares) | shares	3,952,175
Stock Options and Cash-Based Stock Appreciation Rights Outstanding, Weighted Average Remaining Contractual Term (Years)	6 years 29 days
Stock Options and Cash-Based Stock Appreciation Rights Outstanding, Weighted Average Exercise Price (in usd per share)	$ 27.29
Stock Options and Cash-Based Stock Appreciation Rights Exercisable, Number of Shares (in shares) | shares	2,271,774
Stock Options and Cash-Based Stock Appreciation Rights Exercisable, Weighted Average Remaining Contractual Term (Years)	4 years 6 months 14 days
Stock Options and Cash-Based Stock Appreciation Rights Exercisable, Weighted Average Exercise Price (in usd per share)	$ 21.65
$13.34 - $17.69
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range [Line Items]
Range of Exercise Prices, lower range	13.34
Range of Exercise Prices, upper range	$ 17.69
$13.34 - $17.69 | Stock Options and Cash-Based Stock    Appreciation Rights
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range [Line Items]
Stock Options and Cash-Based Stock Appreciation Rights Outstanding, Number of Shares (in shares) | shares	618,493
Stock Options and Cash-Based Stock Appreciation Rights Outstanding, Weighted Average Remaining Contractual Term (Years)	3 years 2 months 15 days
Stock Options and Cash-Based Stock Appreciation Rights Outstanding, Weighted Average Exercise Price (in usd per share)	$ 15.25
Stock Options and Cash-Based Stock Appreciation Rights Exercisable, Number of Shares (in shares) | shares	611,301
Stock Options and Cash-Based Stock Appreciation Rights Exercisable, Weighted Average Remaining Contractual Term (Years)	3 years 2 months 8 days
Stock Options and Cash-Based Stock Appreciation Rights Exercisable, Weighted Average Exercise Price (in usd per share)	$ 15.21
$17.70 - $19.15
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range [Line Items]
Range of Exercise Prices, lower range	17.70
Range of Exercise Prices, upper range	$ 19.15
$17.70 - $19.15 | Stock Options and Cash-Based Stock    Appreciation Rights
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range [Line Items]
Stock Options and Cash-Based Stock Appreciation Rights Outstanding, Number of Shares (in shares) | shares	763,173
Stock Options and Cash-Based Stock Appreciation Rights Outstanding, Weighted Average Remaining Contractual Term (Years)	4 years 2 months 4 days
Stock Options and Cash-Based Stock Appreciation Rights Outstanding, Weighted Average Exercise Price (in usd per share)	$ 18.62
Stock Options and Cash-Based Stock Appreciation Rights Exercisable, Number of Shares (in shares) | shares	635,346
Stock Options and Cash-Based Stock Appreciation Rights Exercisable, Weighted Average Remaining Contractual Term (Years)	3 years 10 months 17 days
Stock Options and Cash-Based Stock Appreciation Rights Exercisable, Weighted Average Exercise Price (in usd per share)	$ 18.43
$19.16 - $26.46
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range [Line Items]
Range of Exercise Prices, lower range	19.16
Range of Exercise Prices, upper range	$ 26.46
$19.16 - $26.46 | Stock Options and Cash-Based Stock    Appreciation Rights
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range [Line Items]
Stock Options and Cash-Based Stock Appreciation Rights Outstanding, Number of Shares (in shares) | shares	842,141
Stock Options and Cash-Based Stock Appreciation Rights Outstanding, Weighted Average Remaining Contractual Term (Years)	5 years 2 months 15 days
Stock Options and Cash-Based Stock Appreciation Rights Outstanding, Weighted Average Exercise Price (in usd per share)	$ 21.38
Stock Options and Cash-Based Stock Appreciation Rights Exercisable, Number of Shares (in shares) | shares	658,659
Stock Options and Cash-Based Stock Appreciation Rights Exercisable, Weighted Average Remaining Contractual Term (Years)	4 years 10 months 28 days
Stock Options and Cash-Based Stock Appreciation Rights Exercisable, Weighted Average Exercise Price (in usd per share)	$ 20.86
$26.47 - $36.32
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range [Line Items]
Range of Exercise Prices, lower range	26.47
Range of Exercise Prices, upper range	$ 36.32
$26.47 - $36.32 | Stock Options and Cash-Based Stock    Appreciation Rights
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range [Line Items]
Stock Options and Cash-Based Stock Appreciation Rights Outstanding, Number of Shares (in shares) | shares	799,316
Stock Options and Cash-Based Stock Appreciation Rights Outstanding, Weighted Average Remaining Contractual Term (Years)	8 years 1 month 2 days
Stock Options and Cash-Based Stock Appreciation Rights Outstanding, Weighted Average Exercise Price (in usd per share)	$ 33.77
Stock Options and Cash-Based Stock Appreciation Rights Exercisable, Number of Shares (in shares) | shares	226,693
Stock Options and Cash-Based Stock Appreciation Rights Exercisable, Weighted Average Remaining Contractual Term (Years)	6 years 10 months 17 days
Stock Options and Cash-Based Stock Appreciation Rights Exercisable, Weighted Average Exercise Price (in usd per share)	$ 34.56
$36.33 - $49.90
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range [Line Items]
Range of Exercise Prices, lower range	36.33
Range of Exercise Prices, upper range	$ 49.90
$36.33 - $49.90 | Stock Options and Cash-Based Stock    Appreciation Rights
Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range [Line Items]
Stock Options and Cash-Based Stock Appreciation Rights Outstanding, Number of Shares (in shares) | shares	929,052
Stock Options and Cash-Based Stock Appreciation Rights Outstanding, Weighted Average Remaining Contractual Term (Years)	8 years 7 months 13 days
Stock Options and Cash-Based Stock Appreciation Rights Outstanding, Weighted Average Exercise Price (in usd per share)	$ 42.20
Stock Options and Cash-Based Stock Appreciation Rights Exercisable, Number of Shares (in shares) | shares	139,775
Stock Options and Cash-Based Stock Appreciation Rights Exercisable, Weighted Average Remaining Contractual Term (Years)	7 years 10 months 9 days
Stock Options and Cash-Based Stock Appreciation Rights Exercisable, Weighted Average Exercise Price (in usd per share)	$ 47.18