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STOCK-BASED COMPENSATION - Narrative (Details) - USD ($)
shares in Millions
12 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Estimated effective income tax rate (percent) 25.00% 26.00% 25.00%
Share-based compensation expense $ 20,706,000 $ 29,001,000 $ 28,844,000
Reduction in deferred tax benefit $ 2,200,000    
Restricted Stock | Employee      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Award vesting period 3 years    
Restricted Stock | Director      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Award vesting period 1 year    
Performance Share Awards      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Award vesting period 3 years    
Stock options      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Award vesting period 3 years    
Share based payment award, term 10 years    
Stock options, expiration period 12 months    
2013 Equity Incentive Plan      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Shares available for grant (in shares) 6.0    
Class A Common Stock | 2013 Equity Incentive Plan      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number common stock awards authorized (in shares) 14.8    
Discontinued Operations      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Share-based compensation expense $ 0 $ 500,000 $ 600,000