Common Stock - Narrative (Details) - USD ($)	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014	Apr. 26, 2016	Jan. 28, 2015
Common Stock
Approved stock repurchase program, authorized amount				$ 400,000,000	$ 450,000,000
Repurchase of common stock (in shares)	4,750,692	7,731,428	3,110,114
Repurchase of common stock, amount	$ 180,066,000	$ 298,344,000	$ 121,776,000
Remaining capacity under the stock repurchase program	$ 521,300,000