OTHER LONG-TERM LIABILITIES - Schedule of Other Long-Term Liabilities (Detail) - USD ($) $ in Thousands	Jun. 30, 2018	Jun. 30, 2017
Other Liabilities Noncurrent [Abstract]
Deferred rent, net of current portion	$ 32,768	$ 33,284
Interest rate swap agreements		3,110
Deferred and contingent acquisition consideration (see Note 4)	11,000	658
Deferred revenue	4,642	6,514
Accrued post-retirement obligations	5,651	6,423
Long-term incentive compensation	11,935	5,605
Reserve for unrecognized tax benefits (see Note 19)	4,195	1,639
Transition tax (see Note 19)	8,128
Other	6,868	643
Total other long-term liabilities	$ 85,187	$ 57,876