EARNINGS PER SHARE - Anti-dilutive Securities (Details) - shares shares in Thousands |
12 Months Ended | ||
|---|---|---|---|
Jun. 30, 2020 |
Jun. 30, 2019 |
Jun. 30, 2018 |
|
| Restricted stock units | |||
| Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | |||
| Potential shares of common stock (in shares) | 6 | 0 | 2 |