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Partners' Capital, Mezzanine Capital and Distributions (Narrative) (Details) $ / shares in Units, $ in Thousands |  | 1 Months Ended | 3 Months Ended |  |
--- | --- | --- | --- | --- | ---
Sep. 23, 2019 | Dec. 31, 2021 | Mar. 31, 2024 USD ($) $ / shares shares | Mar. 31, 2023 USD ($) | Dec. 31, 2023 shares | Aug. 08, 2023 shares
Partners Capital And Distributions [Line Items] |  |  |  |  |  |
Common units outstanding (in units) |  |  | 122,464,318 |  | 122,464,318 |
Less: Accumulated distributions attributable to Class A Convertible Preferred Units | $ |  |  | $ (21,894) | $ (24,002) |  |
Proceeds from Noncontrolling Interests | $ |  |  | $ 9,000 | 19,080 |  |
Cameron Highway Oil Pipeline | Affiliated Entity |  |  |  |  |  |
Partners Capital And Distributions [Line Items] |  |  |  |  |  |
Percentage of ownership after transaction |  | 64.00% |  |  |  |
Independence Hub, LLC | Affiliated Entity | Genesis Energy, LLC |  |  |  |  |  |
Partners Capital And Distributions [Line Items] |  |  |  |  |  |
Noncontrolling Interest, Ownership Percentage by Parent |  |  | 80.00% |  |  |
Subsidiary | Alkali Holdings |  |  |  |  |  |
Partners Capital And Distributions [Line Items] |  |  |  |  |  |
Period for occurrence of triggering events | 6 years 6 months |  |  |  |  |
Class A Common Units | 2023 Repurchase Program |  |  |  |  |  |
Partners Capital And Distributions [Line Items] |  |  |  |  |  |
Percentage of shares authorized for repurchase |  |  |  |  |  | 0.10
Shares authorized to be repurchased (in shares) |  |  |  |  |  | 12,253,922
Stock repurchased and cancelled (in shares) |  |  | 114,900 |  |  |
Shares purchased (in shares) | $ / shares |  |  | $ 9.09 |  |  |
Purchase price | $ |  |  | $ 1,000 |  |  |
Class A Convertible Preferred Stock Units |  |  |  |  |  |
Partners Capital And Distributions [Line Items] |  |  |  |  |  |
Less: Accumulated distributions attributable to Class A Convertible Preferred Units | $ |  |  | $ (21,900) | $ (24,000) |  |
Limited Partner [Member] | Class A Common Units |  |  |  |  |  |
Partners Capital And Distributions [Line Items] |  |  |  |  |  |
Common units outstanding (in units) |  |  | 122,424,321 |  |  |
Limited Partner [Member] | Class B Common Units |  |  |  |  |  |
Partners Capital And Distributions [Line Items] |  |  |  |  |  |
Common units outstanding (in units) |  |  | 39,997 |  |  |
Limited Partner [Member] | Preferred Class A |  |  |  |  |  |
Partners Capital And Distributions [Line Items] |  |  |  |  |  |
Common units outstanding (in units) |  |  | 23,111,918 |  |  |

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