INCOME TAXES - Effective Income Tax Rate Reconciliation (Details)	12 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017
Provision for income taxes reconciliation
U.S. statutory rate	21.00%	28.00%	35.00%
State income taxes, net of federal income tax benefit	0.50%	14.80%	8.70%
Valuation allowance	(14.50%)	560.80%	117.00%
Foreign income taxes at other than U.S. rates	0.90%	(0.50%)	(4.90%)
Work opportunity tax credits	7.20%	15.20%	(26.80%)
Deferred tax rate remeasurement	0.00%	99.00%	0.00%
Uncertain tax positions	1.00%	(15.90%)	0.00%
Stock-based compensation	2.20%	(15.80%)	25.20%
Other, net	(8.70%)	(0.60%)	1.40%
Total	9.60%	685.00%	155.60%
Rate impact of derecognition of goodwill	(5.90%)
Rate impact of miscellaneous items	(2.80%)		(7.10%)
Rate impact of meals and entertainment expense disallowance			6.30%
Rate impact of charitable contributions			10.00%
Rate of impact of officer life insurance			(7.80%)