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STOCK BASED COMPENSATION - Additional Information (Detail) - USD ($) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2018 | Dec. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Authorized shares, stock incentive plans (in shares) | 10,574,283 |  | 10,574,283 |
Stock options |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Aggregate intrinsic value of options exercised | $ 1,900,000 | $ 1,700,000 | $ 3,200,000 | $ 5,500,000
Unrecognized compensation costs | 0 |  | 0 |
Restricted stock units |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Intrinsic value of RSUs vested | 1,100,000 | $ 600,000 | 2,000,000.0 | $ 1,900,000
Intrinsic value of RSUs outstanding | 14,000,000.0 |  | 14,000,000.0 |
Unrecognized compensation costs, RSUs | $ 6,300,000 |  | $ 6,300,000 |
Weighted-average period recognized (in years) |  |  | 3 years 8 months 12 days |

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