FAIR VALUE MEASUREMENTS - Schedule of Impairments (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Dec. 31, 2015	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-lived assets		$ (11,366)	$ (10,478)	$ (14,604)
Impairment charge		0	(12,954)	(4,654)
Empire Education Group Inc
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impairment charge	$ (12,954)	$ 0	$ (12,954)	$ (4,654)