PROPERTY AND EQUIPMENT (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 205,950	$ 174,606
Less: Accumulated depreciation	(86,962)	(72,493)
Property and equipment, net	118,988	102,113
Land [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	2,642	2,642
Building and improvements [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	74,983	53,568
Office and lab equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	101,344	85,881
Furniture and fixtures [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	15,826	8,921
Construction-in-progress [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 11,155	$ 23,594

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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