SHAREHOLDERS' EQUITY: (Details) (USD $)	3 Months Ended		9 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2015	Mar. 31, 2014	Apr. 21, 2015
Additional Paid-In Capital:
Increase (decrease) in additional paid-in capital			$ (26,600,000)
Repurchase of common stock	(10,000,000)		(32,890,000)	0
Stock-based compensation	2,300,000	1,300,000	6,342,000	4,899,000
Repurchase of common stock (shares)	610,346		2,147,744
Outstanding amount remaining under the approved stock repurchase program,	25,900,000		25,900,000
Subsequent Event
Subsequent Event [Line Items]
Stock Repurchase Program, Authorized Amount					$ 50,000,000