LEASES - Narrative (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2020 USD ($) contract	Jul. 31, 2020 USD ($) ft²	Feb. 28, 2019 ft²
Lessee, Lease, Description [Line Items]
Number of leases | contract	2
Minimum lease payments due	$ 10,576
Principal office, lease one
Lessee, Lease, Description [Line Items]
Area leased (square feet) | ft²			2,357
Lease term, optional extension			3 years
Principal office, lease two
Lessee, Lease, Description [Line Items]
Area leased (square feet) | ft²		25,578
Lease term, optional extension		5 years
Lease term		7 years
Minimum lease payments due		$ 17,048
Letter of credit outstanding		$ 1,168