SEGMENT INFORMATION - Schedule of Revenues and Property and Equipment (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2015
Total revenues and long-lived assets associated with business operations
Total Revenues	$ 424,200	$ 412,603	$ 424,043	$ 431,042	$ 447,707	$ 442,565	$ 450,467	$ 450,130	$ 1,691,888	$ 1,790,869	$ 1,837,287
Property and Equipment, Net	146,994				183,321				146,994	183,321	218,157
U.S.
Total revenues and long-lived assets associated with business operations
Total Revenues									1,486,502	1,563,023	1,585,672
Property and Equipment, Net	132,554				167,613				132,554	167,613	198,471
Other countries
Total revenues and long-lived assets associated with business operations
Total Revenues									205,386	227,846	251,615
Property and Equipment, Net	$ 14,440				$ 15,708				$ 14,440	$ 15,708	$ 19,686