v3.22.1
Equity and Partners' Capital - Additional Information (Details) - USD ($)
$ in Thousands
1 Months Ended 3 Months Ended
Mar. 31, 2021
Mar. 31, 2022
Mar. 31, 2021
Dec. 31, 2021
Nov. 30, 2020
Schedule of Investments [Line Items]          
Common units outstanding   403,333,810   402,993,919  
General partner units outstanding   9,060,641   9,060,641  
Unit repurchases, authorized amount   $ 1,000,000     $ 250,000
Unit repurchases, amount   5,149 $ 16,241    
Unit repurchases, remaining authorized amount   $ 994,900      
Public [Member]          
Schedule of Investments [Line Items]          
Unit repurchases, number of units   225,355 1,115,808    
Unit repurchases, amount   $ 5,100 $ 16,200    
WES [Member] | Public [Member]          
Schedule of Investments [Line Items]          
Common units outstanding   203,052,232      
Limited partner's interest   49.20%      
WES [Member] | WES Operating [Member]          
Schedule of Investments [Line Items]          
Limited partner's interest   98.00%      
Occidental [Member] | Limited Partner [Member]          
Schedule of Investments [Line Items]          
Units sold by a related party 11,500,000        
Units sold by a related party, over-allotment 1,500,000        
Occidental [Member] | WES [Member]          
Schedule of Investments [Line Items]          
Common units outstanding   200,281,578      
Limited partner's interest   48.60%      
General partner units outstanding   9,060,641      
General partner's interest   2.20%      
Occidental [Member] | WES Operating [Member]          
Schedule of Investments [Line Items]          
Limited partner's interest   2.00%