STOCK-BASED COMPENSATION - UNRECOGNIZED COMPENSATION EXPENSE (Details) $ in Thousands	9 Months Ended
	Mar. 31, 2016 USD ($)
Stock options
Unrecognized stock-based compensation expense
Unrecognized compensation expense	$ 625
Weighted-average vesting period (years)	1 year 10 months 24 days
Stock appreciation rights
Unrecognized stock-based compensation expense
Unrecognized compensation expense	$ 2,322
Weighted-average vesting period (years)	1 year 10 months 24 days
Restricted stock
Unrecognized stock-based compensation expense
Unrecognized compensation expense	$ 6,177
Weighted-average vesting period (years)	3 years 1 month 6 days
Performance stock
Unrecognized stock-based compensation expense
Unrecognized compensation expense	$ 3,053
Weighted-average vesting period (years)	1 year 6 months