PROPERTY AND EQUIPMENT, NET - Property and Equipment, Net (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Property, Plant and Equipment, Net [Abstract]
Property, plant and equipment, gross	$ 755,007	$ 532,902
Less: accumulated depreciation	(368,606)	(214,282)
Property, plant and equipment, net	386,401	318,620
Computers [Member]
Property, Plant and Equipment, Net [Abstract]
Property, plant and equipment, gross	522,108	339,221
Office Equipment, Furniture and Fittings [Member]
Property, Plant and Equipment, Net [Abstract]
Property, plant and equipment, gross	31,613	24,883
Leasehold Improvements [Member]
Property, Plant and Equipment, Net [Abstract]
Property, plant and equipment, gross	162,032	129,298
Motor Vehicles [Member]
Property, Plant and Equipment, Net [Abstract]
Property, plant and equipment, gross	6,184	14,624
Warehouse Equipment [Member]
Property, Plant and Equipment, Net [Abstract]
Property, plant and equipment, gross	7,296	3,464
Land [Member]
Property, Plant and Equipment, Net [Abstract]
Property, plant and equipment, gross	22,708	20,598
Building [Member]
Property, Plant and Equipment, Net [Abstract]
Property, plant and equipment, gross	2,093	814
Construction-in-Progress [Member]
Property, Plant and Equipment, Net [Abstract]
Property, plant and equipment, gross	$ 973	$ 0

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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