STOCK-BASED COMPENSATION - Schedule of Stock-based Compensation Expense (Details) - USD ($) $ in Thousands	12 Months Ended
Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense (recorded in G&A)	$ 3,275	$ 9,003	$ 8,269
Less: Income tax benefit	(688)	(1,891)	(1,736)
Total stock-based compensation expense, net of tax	2,587	7,112	6,533
SARs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense (recorded in G&A)	0	1,497	2,252
RSAs, RSUs, & PSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense (recorded in G&A)	$ 3,275	$ 7,506	$ 6,017

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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