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Related-Party Transactions - Summary of WES Operating Related-Party Transactions Tables (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Consolidated statements of operations [Abstract]      
General and administrative $ 195,549 $ 155,769 $ 114,591
Consolidated balance sheets [Abstract]      
Accounts receivable, net 436,513 452,880  
Accounts and imbalance payables 326,061 210,691  
Consolidated statements of cash flows [Abstract]      
Distributions to WES Operating unitholders [1] (533,758) (695,834) (969,073)
Related Parties [Member]      
Consolidated statements of operations [Abstract]      
General and administrative 15,613 40,295 101,485
Consolidated balance sheets [Abstract]      
Accounts receivable, net 180,205 291,253  
Accounts and imbalance payables 49,242 6,664  
Consolidated statements of cash flows [Abstract]      
Distributions to WES Operating unitholders (260,703) (367,861) (566,868)
WES Operating [Member]      
Consolidated statements of operations [Abstract]      
General and administrative 192,617 152,217 107,772
Consolidated balance sheets [Abstract]      
Accounts receivable, net 436,513 407,549  
Accounts and imbalance payables 374,443 210,532  
Consolidated statements of cash flows [Abstract]      
Distributions to WES Operating unitholders [2] (749,018) (771,546) (1,124,388)
WES Operating [Member] | Related Parties [Member]      
Consolidated statements of operations [Abstract]      
General and administrative 18,365 41,609 99,613
Consolidated balance sheets [Abstract]      
Accounts receivable, net 180,205 246,083  
Accounts and imbalance payables 97,749 6,664  
Consolidated statements of cash flows [Abstract]      
Distributions to WES Operating unitholders $ (749,018) $ (771,546) $ (1,025,931)
[1] See Note 6.
[2] See Note 6.