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v3.20.2

Leases - Additional Information (Details) $ in Millions | 9 Months Ended
--- | ---
Sep. 30, 2020 USD ($)
Lessee, Lease, Description [Line Items] |
Lease not yet commenced, undiscounted amount | $ 8.9
Finance lease, not yet commenced, undiscounted amount | $ 1.1
Minimum |
Lessee, Lease, Description [Line Items] |
Lease, remaining lease term | 1 year
Maximum |
Lessee, Lease, Description [Line Items] |
Lease, remaining lease term | 30 years

X
- Definition Lessee, Finance Lease, Lease Not Yet Commenced, Undiscounted Amount + References No definition available. + Details
Name: | parr_LesseeFinanceLeaseLeaseNotYetCommencedUndiscountedAmount
Namespace Prefix: | parr_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Lessee, Lease, Renewal Term + References No definition available. + Details
Name: | parr_LesseeLeaseRenewalTerm
Namespace Prefix: | parr_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Lessee, Operating Lease, Lease Not Yet Commenced, Undiscounted Amount + References No definition available. + Details
Name: | parr_LesseeOperatingLeaseLeaseNotYetCommencedUndiscountedAmount
Namespace Prefix: | parr_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- 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_LesseeLeaseDescriptionLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |