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) |