v3.24.1.u1

Partnership Distributions - Additional Information (Details) - USD ($) $ / shares in Units, $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2024 | Mar. 31, 2023
Distribution Made to Limited Partner [Line Items] |  |
Enhanced quarterly per-unit distribution |  | $ 0.356
Enhanced quarterly cash distribution |  | $ 140.1
WES [Member] |  |
Distribution Made to Limited Partner [Line Items] |  |
Partnership agreement day requirement of distribution of available cash | 55 days |

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_DistributionMadeToLimitedPartnerLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Amount of equity impact of enhanced cash distribution declared to unit-holder of limited partnership (LP). + References No definition available. + Details
Name: | wes_EnhancedDistributionMadeToLimitedPartnerCashDistributionsDeclared
Namespace Prefix: | wes_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Per unit of ownership amount of enhanced cash distributions declared to unit-holder of a limited partnership (LP). + References No definition available. + Details
Name: | wes_EnhancedDistributionMadeToLimitedPartnerDistributionsDeclaredPerUnit
Namespace Prefix: | wes_
Data Type: | dtr-types1:perShareItemType
Balance Type: | na
Period Type: | duration

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- Definition The number of days subsequent to each quarter the Partnership is required to make distributions to unitholders of record on the applicable record date. + References No definition available. + Details
Name: | wes_NumberOfDaysSubsequentToQuarterEndThatCashIsRequiredToBeDistributed
Namespace Prefix: | wes_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | dei_LegalEntityAxis=wes_WesternMidstreamPartnersLPMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |