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Related Party Transactions - Additional Information (Details) - USD ($) $ in Millions |  |  | 1 Months Ended | 3 Months Ended | 6 Months Ended |  |
--- | --- | --- | --- | --- | --- | --- | ---
Aug. 13, 2020 | Mar. 31, 2020 | Mar. 31, 2020 | Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2021 | Jun. 30, 2020 | Mar. 01, 2020 | Feb. 29, 2020
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |
Stock Repurchased During Period, Value |  |  | $ 5.0 |  |  |  |  |  |
Revolving Credit Facility | DKL Revolver | Fifth Third Bank | Line of Credit |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |
Cash Consideration Received | $ 45.0 |  |  |  |  |  |  |  |
Delek US Holdings, Inc. |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |
Delek's limited partner ownership interest (as percent) |  |  |  |  |  | 80.00% |  |  |
Limited Liability Company or Limited Partnership, Members or Limited Partners, Ownership Interest, Shares |  |  |  |  |  | 34,700,000 |  |  |
Delek Logistics GP |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |
General Partner Economic Interest, Pecent | 2.00% |  |  |  |  |  |  |  |
Common unitholders - Delek | Limited Partner |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |
Common Limited Partner Units Issued In Restructuring Transaction |  |  | 451,822 |  |  |  |  |  |
Delek US Holdings, Inc. | Delek Logistics |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |
Business Combination, Consideration Transferred Equity Interests Issued And Issuable, Shares | 14,000,000.0 |  |  |  |  |  |  |  |
Delek US Holdings, Inc. | General Partnership |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |
Ownership Interest in General Partner (as percent) | 100.00% |  |  |  |  |  |  |  |
Delek US Holdings, Inc. | General Partnership | Delek Logistics GP |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |
Business Acquisition, Percentage of Voting Interests Acquired | 5.20% |  |  |  |  |  |  |  |
Delek US and affiliates |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |
Related Party. Ownership Percentage In Company |  | 70.50% | 70.50% |  |  |  |  | 62.60% | 64.50%
Delek US and affiliates | DPG Management Agreement, Operating Service And Construction Fee Paid To Partnership |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |
Related Party Transaction, Expenses from Transactions with Related Party |  |  |  | $ 0.4 | $ 0.4 | $ 0.8 | $ 1.2 |  |
Big Spring Gathering Asset |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |
Asset Acquisition, Equity Interest Transfered As Consideration, Shares |  | 5,000,000.0 |  |  |  |  |  |  |

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