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GOODWILL AND INTANGIBLE ASSETS (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Segment Reporting Information [Line Items]      
Goodwill $ 527,592 $ 527,592  
Amortization expense for intangible assets 10,400 10,400 $ 10,800
Gross intangible assets and accumulated amortization [Abstract]      
Gross intangible assets 381,435 381,435  
Accumulated amortization (156,160) (145,732)  
Net intangible assets 225,275 235,703  
Future amortization expense for next five years [Abstract]      
Future amortization expense, year one 10,400    
Future amortization expense, year two 10,400    
Future amortization expense, year three 10,400    
Future amortization expense, year four 10,400    
Future amortization expense, year five 10,400    
Natural Gas Liquids [Member]      
Segment Reporting Information [Line Items]      
Goodwill $ 371,217 371,217  
Natural Gas Liquids [Member] | Minimum [Member]      
Segment Reporting Information [Line Items]      
Finite-Lived Intangible Asset, Useful Life 15 years    
Natural Gas Liquids [Member] | Maximum [Member]      
Segment Reporting Information [Line Items]      
Finite-Lived Intangible Asset, Useful Life 40 years    
Natural Gas Pipelines      
Segment Reporting Information [Line Items]      
Goodwill $ 156,375 $ 156,375  
Natural Gas Gathering and Processing      
Segment Reporting Information [Line Items]      
Goodwill, Impairment Loss     153,400
Impairment of Intangible Assets (Excluding Goodwill)     $ 19,900