Shareholders' Equity - Additional Information (Detail) - USD ($)		3 Months Ended	9 Months Ended
	Oct. 28, 2014	Mar. 31, 2016	Mar. 31, 2016	Jun. 30, 2015
Schedule Of Stockholders Equity [Line Items]
Preferred stock, shares outstanding		0	0	0
Preferred stock, shares authorized		5,000,000	5,000,000	5,000,000
Preferred stock, par value		$ 0.01	$ 0.01	$ 0.01
Common stock, shares authorized		200,000,000	200,000,000	200,000,000
Common stock, par value		$ 0.01	$ 0.01	$ 0.01
Common stock, shares issued		101,135,877	101,135,877	100,699,641
Treasury stock, shares		30,283,842	30,283,842	29,480,498
Common stock, shares outstanding		70,852,035	70,852,035	71,219,143
2014 Buyback Program [Member]
Schedule Of Stockholders Equity [Line Items]
Shares authorized to be repurchased	$ 500,000,000
Shares authorized to be repurchased, period	3 years
Repurchased shares		308,794	803,344
Repurchased shares, cost		$ 24,700,000	$ 74,700,000