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Inventory Financing Agreements - Schedule Obligations Under Inventory Financing Agreements (Details) - USD ($) $ in Thousands | Mar. 31, 2021 | Dec. 31, 2020
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Supply Commitment [Line Items] |  |
Obligations under inventory financing agreements | $ 592,621 | $ 423,686
Supply and Offtake Agreements |  |
Supply Commitment [Line Items] |  |
Obligations under inventory financing agreements | 466,071 | 312,185
Washington Refinery Intermediation Agreement |  |
Supply Commitment [Line Items] |  |
Obligations under inventory financing agreements | $ 126,550 | $ 111,501

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- Definition Minimum amount of other commitment not otherwise specified in the taxonomy. Excludes commitments explicitly modeled in the taxonomy, including but not limited to, long-term and short-term purchase commitments, recorded and unrecorded purchase obligations, supply commitments, registration payment arrangements, leases, debt, product warranties, guarantees, environmental remediation obligations, and pensions. + References No definition available. + Details
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Balance Type: | credit
Period Type: | instant

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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
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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
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