SHAREHOLDERS' EQUITY: (Details) - USD ($)	3 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Equity [Abstract]
Increase (decrease) in additional paid-in capital	$ (41,700,000)
Common stock repurchase amount	43,700,000
Stock-based compensation	$ 2,508,000	$ 1,781,000
Common stock repurchase (in shares)	3,419,057
Remaining amount outstanding under approved stock repurchase program	$ 67,300,000
Additional amount authorized for repurchase	$ 50,000,000