SHAREHOLDERS' EQUITY: (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2016	Mar. 31, 2015
Stockholders' Equity Note [Abstract]
Increase (decrease) in additional paid-in capital			$ (89,200)
Stock repurchased	$ 20,000		97,000
Stock-based compensation	$ 2,500	$ 2,300	$ 7,492	$ 6,342
Stock repurchased (in shares)	1,392,058		7,355,052
Outstanding amount remaining under the approved stock repurchase program	$ 64,000		$ 64,000