PROPERTY PLANT AND EQUIPMENT (PPE BREAKOUT BY TYPE TABLE) (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Property Plant and Equipment Line Items
Property, plant and equipment, gross	$ 860,616	$ 838,306	$ 801,183
Less: Accumulated depreciation and amortization	(692,212)	(659,600)
Property, Plant and Equipment, Net, Total	168,404	178,706
Land And Building [Member]
Property Plant and Equipment Line Items
Property, plant and equipment, gross	32,942	32,944
Technology Equipment [Member]
Property Plant and Equipment Line Items
Property, plant and equipment, gross	503,056	474,415
Equipment [Member]
Property Plant and Equipment Line Items
Property, plant and equipment, gross	50,256	51,717
Furniture And Fixtures
Property Plant and Equipment Line Items
Property, plant and equipment, gross	84,944	85,149
Leasehold Improvements
Property Plant and Equipment Line Items
Property, plant and equipment, gross	189,161	193,823
Vehicles [Member]
Property Plant and Equipment Line Items
Property, plant and equipment, gross	$ 257	$ 258