v3.19.3.a.u2
INTANGIBLE ASSETS Table 1 - Intangible Assets (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Intangible Assets [Line Items]    
Cost $ 866,259 $ 866,309
Accumulated Amortization $ (184,627) (133,253)
Customer relationships    
Intangible Assets [Line Items]    
Finite-Lived intangible asset, useful life 18 years  
Cost $ 863,900 863,950
Accumulated Amortization $ (183,832) (132,509)
Other    
Intangible Assets [Line Items]    
Finite-Lived intangible asset, useful life 47 years  
Cost $ 2,359 2,359
Accumulated Amortization $ (795) $ (744)