LEASES - Narrative (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2020 USD ($) renewal_options	Sep. 30, 2019 USD ($)	Jun. 30, 2020 USD ($)	Dec. 31, 2019 USD ($)
Lessee, Lease, Description [Line Items]
Number of renewal options | renewal_options	1
Operating lease right-of-use assets	$ 86,193			$ 25,519
Present value of lease liabilities	$ 93,423			$ 28,200
Rental income		$ 300
Minimum
Lessee, Lease, Description [Line Items]
Renewal term	2 years
Maximum
Lessee, Lease, Description [Line Items]
Renewal term	5 years
Principal Executive Offices
Lessee, Lease, Description [Line Items]
Operating lease right-of-use assets			$ 65,700
Present value of lease liabilities			$ 65,700