DEBT - Summary of Debt (Details) - USD ($) $ in Thousands |
Jun. 30, 2020 |
Jun. 30, 2019 |
|---|---|---|
| Debt Instrument [Line Items] | ||
| Debt — short-term | $ 24,067 | $ 30,675 |
| Debt issuance costs, net | (933) | (575) |
| Debt — long-term | 628,437 | 464,700 |
| Debt issuance costs, net | (1,563) | (1,550) |
| Term loan facility | ||
| Debt Instrument [Line Items] | ||
| Debt — short-term | 25,000 | 31,250 |
| Debt — long-term | 450,000 | 431,250 |
| Revolving credit facility | Line of credit | ||
| Debt Instrument [Line Items] | ||
| Debt — long-term | $ 180,000 | $ 35,000 |