Related-Party Transactions - Summary of WES Operating Related-Party Transactions Tables (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2025	Mar. 31, 2024	Dec. 31, 2024
Consolidated statements of operations [Abstract]
General and administrative		$ 66,786	$ 67,839
Consolidated balance sheets [Abstract]
Accounts receivable, net		673,204		$ 701,838
Other current assets		68,243		54,888
Other assets		365,756		387,028
Accounts and imbalance payables		357,278		312,945
Consolidated statements of cash flows [Abstract]
Distributions to WES Operating unitholders	[1]	(340,996)	(223,438)
Related Parties [Member]
Consolidated statements of operations [Abstract]
General and administrative		31	0
Consolidated balance sheets [Abstract]
Accounts receivable, net		393,454		401,315
Other current assets		8,843		6,671
Other assets		38,717		41,641
Accounts and imbalance payables		37,257		20,609
Consolidated statements of cash flows [Abstract]
Distributions to WES Operating unitholders		(152,899)	(111,689)
WES Operating [Member]
Consolidated statements of operations [Abstract]
General and administrative		66,974	67,479
Consolidated balance sheets [Abstract]
Accounts receivable, net		711,300		701,814
Other current assets		65,744		53,775
Other assets		362,996		383,808
Accounts and imbalance payables		356,962		339,108
Consolidated statements of cash flows [Abstract]
Distributions to WES Operating unitholders	[2]	(347,356)	(229,446)
WES Operating [Member] | Related Parties [Member]
Consolidated statements of operations [Abstract]
General and administrative		1,537	1,306
Consolidated balance sheets [Abstract]
Accounts receivable, net		431,569		401,315
Other current assets		6,567		6,263
Other assets		35,957		38,421
Accounts and imbalance payables		37,257		$ 46,773
Consolidated statements of cash flows [Abstract]
Distributions to WES Operating unitholders		$ (347,356)	$ (229,446)

[1] Includes related-party amounts. See Note 6.

[2] Includes related-party amounts. See Note 6.