Consolidated Statements of Cash Flows - WES Operating - USD ($) $ in Thousands		9 Months Ended
		Sep. 30, 2023	Sep. 30, 2022
Cash flows from operating activities
Net income (loss)		$ 752,255	$ 906,422
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization		435,481	430,455
Long-lived asset and other impairments	[1]	52,880	94
Non-cash equity-based compensation expense		22,035	21,245
Deferred income taxes		954	1,757
Accretion and amortization of long-term obligations, net		5,977	5,359
Equity income, net – related parties		(116,839)	(139,388)
Distributions from equity-investment earnings – related parties		115,897	139,710
(Gain) loss on divestiture and other, net		3,668	884
(Gain) loss on early extinguishment of debt		(15,378)	(91)
Other		371	299
Changes in assets and liabilities:
(Increase) decrease in accounts receivable, net		(60,573)	(212,955)
Increase (decrease) in accounts and imbalance payables and accrued liabilities, net		(87,040)	65,069
Change in other items, net		78,346	(6,653)
Net cash provided by operating activities		1,188,034	1,212,207
Cash flows from investing activities
Capital expenditures		(536,427)	(341,505)
Contributions to equity investments – related parties		(1,153)	(8,899)
Distributions from equity investments in excess of cumulative earnings – related parties		31,715	41,058
(Increase) decrease in materials and supplies inventory and other		(32,659)	(6,999)
Net cash used in investing activities		(538,584)	(356,252)
Cash flows from financing activities
Borrowings, net of debt issuance costs		1,801,011	1,389,010
Repayments of debt		(1,317,928)	(1,268,548)
Increase (decrease) in outstanding checks		(241)	1,459
Distributions to WES Operating unitholders	[2]	(754,998)	(538,690)
Net contributions from (distributions to) related parties		0	1,161
Other		(16,511)	(10,981)
Net cash provided by (used in) financing activities		(446,612)	(898,861)
Net increase (decrease) in cash and cash equivalents		202,838	(42,906)
Cash and cash equivalents at beginning of period		286,656	201,999
Cash and cash equivalents at end of period		489,494	159,093
Supplemental disclosures
Interest paid, net of capitalized interest		278,283	314,192
Income taxes paid (reimbursements received)		1,271	905
Accrued capital expenditures		112,150	71,955
Chipeta [Member]
Cash flows from financing activities
Distributions to Chipeta noncontrolling interest owner		(5,083)	(5,020)
Third Parties [Member]
Cash flows from investing activities
Acquisitions from third parties		0	(41,018)
Proceeds from the sale of assets to third parties		(60)	1,111
WES Operating [Member]
Cash flows from operating activities
Net income (loss)		753,968	908,168
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization		435,481	430,455
Long-lived asset and other impairments	[3]	52,880	94
Non-cash equity-based compensation expense		21,601	20,822
Deferred income taxes		954	1,757
Accretion and amortization of long-term obligations, net		5,977	5,359
Equity income, net – related parties		(116,839)	(139,388)
Distributions from equity-investment earnings – related parties		115,897	139,710
(Gain) loss on divestiture and other, net		3,668	884
(Gain) loss on early extinguishment of debt		(15,378)	(91)
Other		371	299
Changes in assets and liabilities:
(Increase) decrease in accounts receivable, net		(60,553)	(212,955)
Increase (decrease) in accounts and imbalance payables and accrued liabilities, net		(102,048)	55,981
Change in other items, net		78,111	(6,666)
Net cash provided by operating activities		1,174,090	1,204,429
Cash flows from investing activities
Capital expenditures		(536,427)	(341,505)
Contributions to equity investments – related parties		(1,153)	(8,899)
Distributions from equity investments in excess of cumulative earnings – related parties		31,715	41,058
(Increase) decrease in materials and supplies inventory and other		(32,659)	(6,999)
Net cash used in investing activities		(538,584)	(356,252)
Cash flows from financing activities
Borrowings, net of debt issuance costs		1,801,011	1,389,010
Repayments of debt		(1,317,928)	(1,268,548)
Increase (decrease) in outstanding checks		(244)	1,562
Distributions to WES Operating unitholders	[4]	(912,770)	(1,008,572)
Net contributions from (distributions to) related parties		0	1,161
Other		(2,140)	(3,039)
Net cash provided by (used in) financing activities		(437,154)	(893,446)
Net increase (decrease) in cash and cash equivalents		198,352	(45,269)
Cash and cash equivalents at beginning of period		286,101	195,598
Cash and cash equivalents at end of period		484,453	150,329
Supplemental disclosures
Interest paid, net of capitalized interest		278,283	314,192
Income taxes paid (reimbursements received)		1,271	905
Accrued capital expenditures		112,150	71,955
WES Operating [Member] | Chipeta [Member]
Cash flows from financing activities
Distributions to Chipeta noncontrolling interest owner		(5,083)	(5,020)
WES Operating [Member] | Third Parties [Member]
Cash flows from investing activities
Acquisitions from third parties		0	(41,018)
Proceeds from the sale of assets to third parties		$ (60)	$ 1,111

[1] See Note 8.

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

[3] See Note 8.

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