Represents the volume of product to be delivered annually under the agreement.

No definition available.

Name:	uan_RelatedPartyTransactionAnnualProductionVolumeOfProductToBeDelivered
Namespace Prefix:	uan_
Data Type:	num:massItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the average percentage of product obtained during the last five years pursuant to the agreement.

+ References

No definition available.

+ Details

Name:	uan_RelatedPartyTransactionAveragePercentageOfProductObtainedDuringLastFiveYears
Namespace Prefix:	uan_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the monthly production volume of product which allows for the purchasing party the option to purchase any excess at rates stated in the agreement.

+ References

No definition available.

+ Details

Name:	uan_RelatedPartyTransactionMonthlyProductionVolumeOfProductAllowingForOptionToPurchaseExcessAtAgreementRate
Namespace Prefix:	uan_
Data Type:	num:massItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the percentage of annual production of product to be delivered under the agreement.

+ References

No definition available.

+ Details

Name:	uan_RelatedPartyTransactionPercentageOfAnnualProductionOfProductToBeDelivered
Namespace Prefix:	uan_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the period for which the average percentage of product was obtained pursuant to the supply agreement.

+ References

No definition available.

+ Details

Name:	uan_RelatedPartyTransactionPeriodforwhichAveragePercentageofProductObtained
Namespace Prefix:	uan_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the petroleum coke price adjustment due to changes in the urea and ammonia nitrate netback price, exclusive of transportation cost, which is used for calculating the urea and ammonia nitrate-based price in determining the rate under the related party agreement.

+ References

No definition available.

+ Details

Name:	uan_RelatedPartyTransactionRatePetroleumCokePriceAdjustmentUsedToDetermineUreaAmmoniumNitrateBasedPrice
Namespace Prefix:	uan_
Data Type:	us-types:perUnitItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the petroleum coke price which is used for calculating the urea and ammonia nitrate-based price in determining the rate under the related party agreement.

+ References

No definition available.

+ Details

Name:	uan_RelatedPartyTransactionRatePetroleumCokePriceUsedToDetermineUreaAmmoniumNitrateBasedPrice
Namespace Prefix:	uan_
Data Type:	us-types:perUnitItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the change in the urea and ammonia nitrate netback price, exclusive of transportation cost, used in determining the rate under the related party agreement.

+ References

No definition available.

+ Details

Name:	uan_RelatedPartyTransactionRateUreaAmmoniumNitrateBasedChangeToNetbackPriceExclusiveOfTransportationCost
Namespace Prefix:	uan_
Data Type:	us-types:perUnitItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the urea and ammonia nitrate netback price, exclusive of transportation cost, used in determining the rate under the related party agreement.

+ References

No definition available.

+ Details

Name:	uan_RelatedPartyTransactionRateUreaAmmoniumNitrateBasedNetbackPriceExclusiveOfTransportationCost
Namespace Prefix:	uan_
Data Type:	us-types:perUnitItemType
Balance Type:	na
Period Type:	duration

- Definition

The aggregate cost of goods produced and sold during the reporting period, excluding depreciation, depletion, and amortization.

+ References

No definition available.

+ Details

Name:	us-gaap_CostOfGoodsSoldExcludingDepreciationDepletionAndAmortization
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount of payable due to an entity that is affiliated with the reporting entity by means of direct or indirect ownership. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

+ 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.(k)(1))

-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 850

-SubTopic 10

-Section 50

-Paragraph 1

-Subparagraph (d)

-URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 08

-Paragraph k

-Subparagraph 1

-Article 4

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19

-Subparagraph a

-Article 5

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.19(a))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Paragraph 12

-Subparagraph 3

-Article 6

+ Details

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

- Details

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

- Details

Name:	us-gaap_ProductOrServiceAxis=uan_PetroleumCokeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RangeAxis=us-gaap_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Related Party Transactions (Details 2) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Related Party Transaction [Line Items]
Cost of product sold	$ 25,769	$ 21,708
Accounts payable, due to affiliates	1,752us-gaap_DueToAffiliateCurrent		2,279us-gaap_DueToAffiliateCurrent
Petroleum coke \| Coke Supply Agreement
Related Party Transaction [Line Items]
Cost of product sold	1,800	2,200
Accounts payable, due to affiliates	$ 300		$ 500
Petroleum coke \| CRNF \| Coke Supply Agreement \| CRRM
Related Party Transaction [Line Items]
Percentage of annual production of pet coke to be delivered	100.00%
Annual production of pet coke	500,000
Period for which average percentage of pet coke is obtained from CRRM's adjacent crude oil refinery	5 years
Pet coke price used to calculate the UAN-based price under the related party agreement (in dollars per ton)	25
UAN-based netback price, exclusive of transportation cost, under the related party agreement (in dollars per ton)	205
Pet coke price adjustment for every $1.00 change in the UAN netback price, exclusive of transportation cost, used to calculate the UAN-based price under the related party agreement (in dollars per ton)	0.5
UAN-based netback price change, exclusive of transportation cost, under the related party agreement (in dollars per ton)	1
Minimum \| Petroleum coke \| CRNF \| Coke Supply Agreement \| CRRM
Related Party Transaction [Line Items]
Monthly production volume of product which allows for the purchasing party the option to purchase any excess at rates stated in the agreement	41,667
Average percentage of pet coke obtained during the last five years from CRRM's adjacent crude oil refinery	70.00%
Pet coke price used to calculate the UAN-based price under the related party agreement (in dollars per ton)	5
Maximum \| Petroleum coke \| CRNF \| Coke Supply Agreement \| CRRM
Related Party Transaction [Line Items]
Pet coke price used to calculate the UAN-based price under the related party agreement (in dollars per ton)	40