Inventories (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Crude oil and feedstocks	$ 62,299us-gaap_CrudeOilAndNaturalGasLiquids	$ 62,594us-gaap_CrudeOilAndNaturalGasLiquids
Refined products and blend stock	107,554parr_RefinedProductsAndBlendStock	166,297parr_RefinedProductsAndBlendStock
Warehouse stock and other	15,221	14,962
Total	185,074us-gaap_InventoryNet	243,853us-gaap_InventoryNet
Reserves for the lower of cost or market value of inventory	266us-gaap_InventoryValuationReserves	2,400us-gaap_InventoryValuationReserves
Titled Inventory [Member]
Crude oil and feedstocks	0	0
Refined products and blend stock	33,028	47,922
Warehouse stock and other	15,221	14,962
Total	48,249	62,884
Supply and Exchange Agreements [Member]
Crude oil and feedstocks	62,299	62,594
Refined products and blend stock	74,526	118,375
Warehouse stock and other	0	0
Total	$ 136,825	$ 180,969

Refined products and blend stock

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- Definition

The aggregate carrying amount as of the balance sheet date of unrefined petroleum and the liquid hydrocarbon components recovered from natural gas.

+ References

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Carrying amount as of the balance sheet date of finished goods inventories for petroleum products, crude oil, petrochemical products, and other oil and gas inventories.

+ References

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- Definition

Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

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-Subparagraph (SX 210.5-02.6(a))

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- Definition

Amount of valuation reserve for inventory.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

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-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

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