STOCKHOLDERS' EQUITY (Details) - Class A Common - USD ($)	3 Months Ended
	Sep. 30, 2016	May 04, 2016
STOCKHOLDERS' EQUITY
Share repurchase authorized amount (in shares)		$ 100,000,000
Number of shares repurchased (in shares)	3,364,531
Amount of shares repurchased	$ 51,118,000
Average cost of shares repurchased (in dollars per shares)	$ 15.19
Share repurchase remaining authorized amount	$ 48,882,000