ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Basis of Presentation (Details) - USD ($) $ in Millions |
3 Months Ended | ||
|---|---|---|---|
Sep. 30, 2019 |
Jun. 30, 2019 |
Mar. 31, 2019 |
|
| ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES | |||
| Operating lease interest expense | $ 1.4 | $ 1.4 | $ 1.3 |