Consolidated Statements of Equity and Partners' Capital - WES Operating - USD ($) $ in Thousands	Total	Chipeta [Member]	Common Units [Member]	Noncontrolling Interest [Member]	Noncontrolling Interest [Member] Chipeta [Member]	WES Operating [Member]	WES Operating [Member] WES [Member]	WES Operating [Member] Chipeta [Member]	WES Operating [Member] Common Units [Member]	WES Operating [Member] Common Units [Member] WES [Member]	WES Operating [Member] Noncontrolling Interest [Member]	WES Operating [Member] Noncontrolling Interest [Member] Chipeta [Member]
Balance at Dec. 31, 2022	$ 3,108,115		$ 2,969,604	$ 136,406		$ 3,120,107			$ 3,092,012		$ 28,095
Increase (Decrease) in Partners' Capital [Roll Forward]
Net income (loss)	208,341		198,959	4,696		208,548			208,013		535
Distributions to noncontrolling interest owners		$ (2,240)			$ (2,240)			$ (2,240)				$ (2,240)
Distributions to WES Operating unitholders	(196,569)		(192,039)			(213,513)			(213,513)
Contributions of equity-based compensation from related parties							$ 7,058			$ 7,058
Balance at Mar. 31, 2023	3,101,564		2,964,712	134,591		3,119,960			3,093,570		26,390
Balance at Dec. 31, 2022	3,108,115		2,969,604	136,406		3,120,107			3,092,012		28,095
Increase (Decrease) in Partners' Capital [Roll Forward]
Net income (loss)	752,255					753,968
Balance at Sep. 30, 2023	2,955,092		2,821,958	131,456		2,977,823			2,951,434		26,389
Balance at Mar. 31, 2023	3,101,564		2,964,712	134,591		3,119,960			3,093,570		26,390
Increase (Decrease) in Partners' Capital [Roll Forward]
Net income (loss)	259,516		247,100	6,595		260,573			259,163		1,410
Distributions to noncontrolling interest owners		(1,230)			(1,230)			(1,230)				(1,230)
Distributions to WES Operating unitholders	(336,987)		(329,227)			(342,895)			(342,895)
Contributions of equity-based compensation from related parties							7,519			7,519
Balance at Jun. 30, 2023	3,022,163		2,888,745	133,096		3,043,927			3,017,357		26,570
Increase (Decrease) in Partners' Capital [Roll Forward]
Net income (loss)	284,398		270,843	7,102		284,847			283,415		1,432
Distributions to noncontrolling interest owners		(1,613)			(1,613)			(1,613)				(1,613)
Distributions to WES Operating unitholders	(221,442)		(216,345)			(356,362)			(356,362)
Contributions of equity-based compensation from related parties							7,024			7,024
Balance at Sep. 30, 2023	2,955,092		2,821,958	131,456		2,977,823			2,951,434		26,389
Balance at Dec. 31, 2023	3,029,130		2,894,231	131,706		3,052,354			3,027,031		25,323
Increase (Decrease) in Partners' Capital [Roll Forward]
Net income (loss)	586,216		559,500	13,386		586,517			584,831		1,686
Distributions to noncontrolling interest owners		(1,085)			(1,085)			(1,085)				(1,085)
Distributions to WES Operating unitholders	(223,438)		(218,228)			(229,446)			(229,446)
Contributions of equity-based compensation from related parties							9,278			9,278
Balance at Mar. 31, 2024	3,376,291		3,225,562	139,416		3,417,618			3,391,694		25,924
Balance at Dec. 31, 2023	3,029,130		2,894,231	131,706		3,052,354			3,027,031		25,323
Increase (Decrease) in Partners' Capital [Roll Forward]
Net income (loss)	1,269,672					1,271,479
Balance at Sep. 30, 2024	3,377,517		3,225,855	140,690		3,424,947			3,397,488		27,459
Balance at Mar. 31, 2024	3,376,291		3,225,562	139,416		3,417,618			3,391,694		25,924
Increase (Decrease) in Partners' Capital [Roll Forward]
Net income (loss)	387,564		369,841	8,916		388,428			387,259		1,169
Distributions to noncontrolling interest owners		(593)			(593)			(593)				(593)
Distributions to WES Operating unitholders	(340,858)		(332,930)			(347,675)			(347,675)
Contributions of equity-based compensation from related parties							10,247			10,247
Balance at Jun. 30, 2024	3,424,009		3,271,033	140,784		3,468,025			3,441,525		26,500
Increase (Decrease) in Partners' Capital [Roll Forward]
Net income (loss)	295,892		281,772	7,412		296,534			295,025		1,509
Distributions to noncontrolling interest owners		$ (550)			$ (550)			$ (550)				$ (550)
Distributions to WES Operating unitholders	(340,859)		(332,931)			(347,675)			(347,675)
Contributions of equity-based compensation from related parties							$ 8,613			$ 8,613
Balance at Sep. 30, 2024	$ 3,377,517		$ 3,225,855	$ 140,690		$ 3,424,947			$ 3,397,488		$ 27,459