This represents applicable margin rate for debt instrument based on the leverage ratio maintained.

No definition available.

Name:	parr_DebtInstrumentMarginRate
Namespace Prefix:	parr_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Line of Credit Facility, Borrowing Base

+ References

No definition available.

+ Details

Name:	parr_LineofCreditFacilityBorrowingBase
Namespace Prefix:	parr_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28551-108399

+ Details

Name:	us-gaap_DebtInstrumentInterestRateEffectivePercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- 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_DebtInstrumentLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Fair value of the amount outstanding under the credit facility.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 10
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=77997519&loc=d3e13433-108611

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=77997519&loc=d3e13476-108611

+ Details

Name:	us-gaap_LineOfCreditFacilityFairValueOfAmountOutstanding
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of increase (decrease) of the credit facility.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(f))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

+ Details

Name:	us-gaap_LineOfCreditFacilityIncreaseDecreaseForPeriodNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

Name:	us-gaap_CreditFacilityAxis=us-gaap_RevolvingCreditFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=parr_ABLCreditFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=parr_ABLRevloverMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	parr_BorrowingBaseAxis=parr_BorrowingBaseGreaterthan50Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableRateAxis=us-gaap_LondonInterbankOfferedRateLIBORMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableRateAxis=us-gaap_PrimeRateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	parr_BorrowingBaseAxis=parr_BorrowingBaseGreaterthan30andlessthanorEqualto50Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	parr_BorrowingBaseAxis=parr_BorrowingBaseLessThanorEqualto30Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Debt - ABL Loan Agreement (Details) - USD ($)		12 Months Ended
Debt - ABL Loan Agreement (Details) - USD ($)	Jul. 24, 2018	Dec. 31, 2018
Revolving Credit Facility \| ABL Credit Facility
Debt Instrument [Line Items]
Line of credit facility, increase (decrease)	$ 10,000,000
Line credit maximum borrowing amount	$ 85,000,000
Revolving Credit Facility \| ABL Revlover
Debt Instrument [Line Items]
Line of credit facility, fair value of amount outstanding		$ 0
Line of credit facility, borrowing base		$ 54,700,000
Effective percentage		4.30%
Borrowing Base Greater than 50% \| London Interbank Offered Rate (LIBOR) \| ABL Revlover
Debt Instrument [Line Items]
Debt instrument margin rate		1.75%
Borrowing Base Greater than 50% \| Prime Rate \| ABL Revlover
Debt Instrument [Line Items]
Debt instrument margin rate		0.75%
Borrowing Base Greater than 30% and less than or Equal to 50% \| London Interbank Offered Rate (LIBOR) \| ABL Revlover
Debt Instrument [Line Items]
Debt instrument margin rate		2.00%
Borrowing Base Greater than 30% and less than or Equal to 50% \| Prime Rate \| ABL Revlover
Debt Instrument [Line Items]
Debt instrument margin rate		1.00%
Borrowing Base Less Than or Equal to 30% \| London Interbank Offered Rate (LIBOR) \| ABL Revlover
Debt Instrument [Line Items]
Debt instrument margin rate		2.25%
Borrowing Base Less Than or Equal to 30% \| Prime Rate \| ABL Revlover
Debt Instrument [Line Items]
Debt instrument margin rate		1.25%