SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Recently Issued Accounting Standards (Details) $ in Millions	Jul. 01, 2019 USD ($) contract
Forecast | Accounting Standards Update 2016-02 | Minimum
Lessee, Lease, Description [Line Items]
Operating liabilities	$ 4.0
ROU assets	4.0
Forecast | Accounting Standards Update 2016-02 | Maximum
Lessee, Lease, Description [Line Items]
Operating liabilities	5.0
ROU assets	$ 5.0
Subsequent Event
Lessee, Lease, Description [Line Items]
Number of leases | contract	50