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Related-Party Transactions - Summary of WES Operating Related-Party Transactions Tables (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2024
Sep. 30, 2023
Sep. 30, 2024
Sep. 30, 2023
Dec. 31, 2023
Consolidated statements of operations [Abstract]          
General and administrative $ 64,726 $ 55,050 $ 195,498 $ 159,572  
Consolidated balance sheets [Abstract]          
Accounts receivable, net 671,635   671,635   $ 666,637
Other current assets 36,316   36,316   52,986
Other assets [1] 255,333   255,333   233,455
Accounts and imbalance payables 387,158   387,158   362,451
Accrued liabilities 203,721   203,721   262,572
Consolidated statements of cash flows [Abstract]          
Distributions to WES Operating unitholders [2]     (905,155) (754,998)  
Related Parties [Member]          
Consolidated statements of operations [Abstract]          
General and administrative 45 414 299 698  
Consolidated balance sheets [Abstract]          
Accounts receivable, net 393,740   393,740   358,141
Other current assets 3,140   3,140   1,260
Other assets 40,871   40,871   43,216
Accounts and imbalance payables 57,414   57,414   38,541
Accrued liabilities 5,029   5,029   4,979
Consolidated statements of cash flows [Abstract]          
Distributions to WES Operating unitholders     (451,613) (382,438)  
WES Operating [Member]          
Consolidated statements of operations [Abstract]          
General and administrative 64,017 54,541 193,497 157,645  
Consolidated balance sheets [Abstract]          
Accounts receivable, net 674,798   674,798   666,615
Other current assets 35,477   35,477   50,468
Other assets [3] 252,078   252,078   231,644
Accounts and imbalance payables 387,135   387,135   392,752
Accrued liabilities 151,750   151,750   203,461
Consolidated statements of cash flows [Abstract]          
Distributions to WES Operating unitholders [4]     (924,796) (912,770)  
WES Operating [Member] | Related Parties [Member]          
Consolidated statements of operations [Abstract]          
General and administrative 944 $ 1,137 3,292 3,271  
Consolidated balance sheets [Abstract]          
Accounts receivable, net 396,943   396,943   358,141
Other current assets 2,722   2,722   1,235
Other assets 37,616   37,616   41,405
Accounts and imbalance payables 57,414   57,414   69,472
Accrued liabilities $ 4,713   4,713   $ 4,662
Consolidated statements of cash flows [Abstract]          
Distributions to WES Operating unitholders     $ (924,796) $ (912,770)  
[1] Other assets includes $3.9 million and $5.7 million of NGLs line-fill inventory as of September 30, 2024, and December 31, 2023, respectively. Other assets also includes $128.9 million and $96.3 million of materials and supplies inventory as of September 30, 2024, and December 31, 2023, respectively.
[2] Includes related-party amounts. See Note 6.
[3] Other assets includes $3.9 million and $5.7 million of NGLs line-fill inventory as of September 30, 2024, and December 31, 2023, respectively. Other assets also includes $128.9 million and $96.3 million of materials and supplies inventory as of September 30, 2024, and December 31, 2023, respectively.
[4] Includes related-party amounts. See Note 6.