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Commitments and Contingencies - Additional Information (Detail) (USD $) | 1 Months Ended | 12 Months Ended
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Apr. 30, 2013 | Dec. 31, 2014 MMBTU | Dec. 31, 2013 | Dec. 31, 2012
Commitments And Contingencies [Line Items] |  |  |  |
Expenses incurred in operating lease agreements |  | $ 7,425,000 lxu_OperatingLeaseExpense | $ 6,401,000 lxu_OperatingLeaseExpense | $ 6,830,000 lxu_OperatingLeaseExpense
Working interest in natural gas properties |  | 12.00%lxu_WorkingInterest |  |
Natural gas purchase commitments |  | 2,900,000 lxu_NaturalGasPurchaseCommitmentsVolume |  |
Natural gas purchase commitments weighted average cost, per unit |  | 3.25 lxu_NaturalGasPurchaseCommitmentsWeightedAverageCostPerUnit |  |
Natural gas purchase commitments weighted average cost, amount |  | 9,500,000 lxu_NaturalGasPurchaseCommitmentsWeightedAverageCost |  |
Natural gas purchase commitments weighted average market value per unit |  | 3.01 lxu_NaturalGasPurchaseCommitmentsWeightedAverageMarketValuePerUnit |  |
Natural gas purchase commitments weighted average market value, amount |  | 8,800,000 lxu_NaturalGasPurchaseCommitmentsWeightedAverageMarketValue |  |
Outstanding letters of credit |  | 2,600,000 us-gaap_LettersOfCreditOutstandingAmount |  |
Customer advances and deposits |  | 6,800,000 us-gaap_CustomerAdvancesAndDeposits |  |
Month purchase commitment period ends for natural gas |  | December 2015 |  |
Estimated share of the annual operating costs of pipeline, minimum |  | 100,000 lxu_EstimatedShareOfAnnualOperatingCostOfPipelineMinimum |  |
Estimated share of the annual operating costs of pipeline, maximum |  | 150,000 lxu_EstimatedShareOfAnnualOperatingCostOfPipelineMaximum |  |
Operating agreement |  | The initial term of the operating agreement is through December 2053. |  |
Indemnify the sureties for payments |  | 10,600,000 lxu_LiabilitiesRelatedToSuretiesMaximum |  |
Maximum amount of securities can be sold under shelf registration statement |  | 200,000,000 lxu_MaximumAmountOfSecuritiesCanBeSoldUnderShelfRegistrationStatement |  |
Payments under employment and severance agreements |  | 15,800,000 lxu_PaymentsUnderEmploymentAndSeveranceAgreements |  |
Accrued liabilities for environmental matters |  | 408,000 lxu_AccruedEnvironmentalLiabilities |  |
Penalty related to discharge water permit |  | 100,000 lxu_PenaltyRelatedToDischargeWaterPermit |  |
Insurance coverage of general liability risks | 100,000,000 lxu_InsuranceCoverageOfGeneralLiabilityAndAutoLiabilityRisks | 100,000,000 lxu_InsuranceCoverageOfGeneralLiabilityAndAutoLiabilityRisks |  |
Product liability deductible per claim | 250,000 lxu_ProductLiabilityDeductiblePerClaim |  |  |
Gathering Agreement [Member] |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |
Agreement term |  | December 2026 |  |
Agreement description |  | Contractually agreed to deliver a minimum daily quantity of natural gas to a certain gathering and pipeline system through December 2026 to ensure capacity availability on that system. This gathering agreement effectively requires a daily minimum demand charge. |  |
Pryor Chemical Company [Member] |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |
Required period for notice of termination |  | 3 months |  |
Koch Nitrogen [Member] |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |
Required period for notice of termination |  | 6 months |  |
Climate Control Business [Member] |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |
Product liability deductible per claim |  | 250,000 lxu_ProductLiabilityDeductiblePerClaim / us-gaap_StatementBusinessSegmentsAxis = lxu_ClimateControlBusinessMember |  |
Insurance Claims [Member] |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |
Accrued general liability insurance claims |  | 541,000 lxu_AccruedGeneralLiabilityInsuranceClaims / us-gaap_StatementBusinessSegmentsAxis = us-gaap_InsuranceClaimsMember |  |
Demand Charge [Member] | Gathering Agreement [Member] |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |
Annual minimum demand charges, Year One |  | 8,900,000 us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceOnFirstAnniversary / us-gaap_OilAndGasDeliveryCommitmentsAndContractsAxis = lxu_GatheringAgreementMember / us-gaap_PurchaseCommitmentExcludingLongtermCommitmentAxis = lxu_DemandChargeMember |  |
Annual minimum demand charges, Year Two |  | 8,900,000 us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceOnSecondAnniversary / us-gaap_OilAndGasDeliveryCommitmentsAndContractsAxis = lxu_GatheringAgreementMember / us-gaap_PurchaseCommitmentExcludingLongtermCommitmentAxis = lxu_DemandChargeMember |  |
Annual minimum demand charges, Year Three |  | 8,900,000 us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceOnThirdAnniversary / us-gaap_OilAndGasDeliveryCommitmentsAndContractsAxis = lxu_GatheringAgreementMember / us-gaap_PurchaseCommitmentExcludingLongtermCommitmentAxis = lxu_DemandChargeMember |  |
Annual minimum demand charges, Year Four |  | 8,900,000 us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceOnFourthAnniversary / us-gaap_OilAndGasDeliveryCommitmentsAndContractsAxis = lxu_GatheringAgreementMember / us-gaap_PurchaseCommitmentExcludingLongtermCommitmentAxis = lxu_DemandChargeMember |  |
Annual minimum demand charges, Year Five |  | 8,900,000 us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceOnFifthAnniversary / us-gaap_OilAndGasDeliveryCommitmentsAndContractsAxis = lxu_GatheringAgreementMember / us-gaap_PurchaseCommitmentExcludingLongtermCommitmentAxis = lxu_DemandChargeMember |  |
Annual minimum demand charges, Thereafter |  | 5,700,000 us-gaap_UnrecordedUnconditionalPurchaseObligationDueAfterFiveYears / us-gaap_OilAndGasDeliveryCommitmentsAndContractsAxis = lxu_GatheringAgreementMember / us-gaap_PurchaseCommitmentExcludingLongtermCommitmentAxis = lxu_DemandChargeMember |  |
Annual minimum demand charges, Total obligation |  | 14,600,000 us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceSheetAmount / us-gaap_OilAndGasDeliveryCommitmentsAndContractsAxis = lxu_GatheringAgreementMember / us-gaap_PurchaseCommitmentExcludingLongtermCommitmentAxis = lxu_DemandChargeMember |  |
Bayer Agreement [Member] |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |
Operating agreement maturity period |  | 2021-06 |  |
Koch Agreement [Member] |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |
Anhydrous ammonia purchase agreement maturity date |  | Dec. 31, 2015 |  |
Hallowell Facility [Member] |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |
Number of subsidiaries under Chemical Business that sold their operating assets |  | 2 lxu_NumberOfSubsidiariesUnderChemicalBusinessThatSoldTheirOperatingAssets / us-gaap_SubsegmentsAxis = lxu_HallowellFacilityMember |  |
El Dorado Facility [Member] | Ammonia Plant [Member] |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |
Project costs capitalized |  | 128,000,000 us-gaap_ConstructionInProgressGross / us-gaap_PurchaseCommitmentExcludingLongtermCommitmentAxis = lxu_AmmoniaPlantMember / us-gaap_SubsegmentsAxis = lxu_EldoradoMember |  |
El Dorado Facility [Member] | Nitric Acid Plant [Member] |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |
Project costs capitalized |  | 96,000,000 us-gaap_ConstructionInProgressGross / us-gaap_PurchaseCommitmentExcludingLongtermCommitmentAxis = lxu_NitricAcidPlantMember / us-gaap_SubsegmentsAxis = lxu_EldoradoMember |  |
El Dorado Facility [Member] | Minimum [Member] | Ammonia Plant [Member] |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |
Estimated range of project costs to construct plant |  | 275,000,000 lxu_EstimatedProjectCosts / us-gaap_PurchaseCommitmentExcludingLongtermCommitmentAxis = lxu_AmmoniaPlantMember / us-gaap_RangeAxis = us-gaap_MinimumMember / us-gaap_SubsegmentsAxis = lxu_EldoradoMember |  |
El Dorado Facility [Member] | Minimum [Member] | Nitric Acid Plant [Member] |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |
Estimated range of project costs to construct plant |  | 125,000,000 lxu_EstimatedProjectCosts / us-gaap_PurchaseCommitmentExcludingLongtermCommitmentAxis = lxu_NitricAcidPlantMember / us-gaap_RangeAxis = us-gaap_MinimumMember / us-gaap_SubsegmentsAxis = lxu_EldoradoMember |  |
El Dorado Facility [Member] | Maximum [Member] | Ammonia Plant [Member] |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |
Estimated range of project costs to construct plant |  | 300,000,000 lxu_EstimatedProjectCosts / us-gaap_PurchaseCommitmentExcludingLongtermCommitmentAxis = lxu_AmmoniaPlantMember / us-gaap_RangeAxis = us-gaap_MaximumMember / us-gaap_SubsegmentsAxis = lxu_EldoradoMember |  |
El Dorado Facility [Member] | Maximum [Member] | Nitric Acid Plant [Member] |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |
Estimated range of project costs to construct plant |  | $ 130,000,000 lxu_EstimatedProjectCosts / us-gaap_PurchaseCommitmentExcludingLongtermCommitmentAxis = lxu_NitricAcidPlantMember / us-gaap_RangeAxis = us-gaap_MaximumMember / us-gaap_SubsegmentsAxis = lxu_EldoradoMember |  |
Orica International [Member] | Ammonium Nitrate Supply Agreement [Member] |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |
Ammonium nitrate supply agreement maturity date |  | Apr. 09, 2015 |  |
Notice of termination |  | Required notice of termination of one year |  |
Orica International [Member] | Ammonium Nitrate Supply Agreement [Member] | Minimum [Member] |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |
Current purchase agreement quantity with Orica International |  | 240,000 lxu_LongTermSupplyCommitmentQuantity / us-gaap_OtherCommitmentsAxis = lxu_AmmoniumNitrateSupplyAgreementMember / us-gaap_RangeAxis = us-gaap_MinimumMember / us-gaap_SubsegmentsAxis = lxu_OricaInternationalMember |  |

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- Definition Represents the percentage share of costs and expenses incurred to develop certain leaseholds and to produce the natural gas. + References No definition available. + Details
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