LEASES - SUPPLEMENTAL BALANCE SHEET INFORMATION RELATED TO LEASES (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Lease, Description [Line Items]
Operating lease ROU Assets	$ 220,678	$ 0
Finance lease ROU assets, net	93,917
Total leased assets	314,595
Operating lease liabilities, current	29,209	0
Finance lease liabilities, curent	4,079
Operating lease liabilities, non-current	184,163	$ 0
Finance lease liabilities, non-current	75,564
Total leased liabilities	293,015
Property, plant and equipment, gross
Lease, Description [Line Items]
Finance lease ROU assets, net	101,142
Accumulated depreciation
Lease, Description [Line Items]
Finance lease ROU assets, net	7,225
Property, plant and equipment, net
Lease, Description [Line Items]
Finance lease ROU assets, net	$ 93,917