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Commitments and Contingencies - Crude Oil Supply Agreement (Details) - Crude Oil Supply Agreement |  | 3 Months Ended | 6 Months Ended
--- | --- | --- | ---
Aug. 31, 2012 | Jun. 30, 2022 | Jun. 30, 2021 | Jun. 30, 2022 | Jun. 30, 2021
Loss Contingencies [Line Items] |  |  |  |  |
Renewal term of agreement | 1 year |  |  |  |
Notice of non-renewal period prior to expiration | 180 days |  |  |  |
Petroleum Segment | Contracted Volume | Supplier Concentration Risk |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |
Volume contracted under crude oil supply agreement as percentage of total crude oil purchases |  | 30.00% | 42.00% | 34.00% | 40.00%

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