SHORT TERM INVESTMENTS, PREPAID EXPENSES AND OTHER CURRENT ASSETS - Narrative (Details)
$ in Millions
|1 Months Ended|
Jun. 30, 2019
|Goodwill and Intangible Assets Disclosure [Abstract]|
|Tax refund||$ 4.0|
The amount of cash received during the period as refunds for the overpayment of taxes.
Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef