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Subsequent Events - Additional Information (Detail) (USD $) | 9 Months Ended
--- | ---
Sep. 30, 2013
Subsequent Event [Line Items] |
Deferred gain on insurance recovery | $ 25,417,000
El Dorado Facility [Member] |
Subsequent Event [Line Items] |
Insurance payments received | 60,000,000
Subsequent Events [Member] | El Dorado Facility [Member] |
Subsequent Event [Line Items] |
Total insurance settlement recovery | 113,000,000
Insurance payments received | 60,000,000
Approved insurance payments | 53,000,000
Approved insurance payment terms | Settlement amount receivable to be paid to the company with in 30 days from October 23, 2013
Total insurance recovery recognized as income | 76,000,000
Deferred gain on insurance recovery | $ 23,400,000

X
- Definition The aggregated amount of an insurance claim settlement. + References No definition available. + Details
Name: | lxu_AggregateInsuranceClaimSettlementAmount
Namespace Prefix: | lxu_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount approved by an insurance company in settlement or partial settlement of a claim for reimbursement when the Company has suffered a loss covered under an insurance policy. + References No definition available. + Details
Name: | lxu_AmountApprovedUnderInsuranceClaim
Namespace Prefix: | lxu_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The period of time from which an insurance claim for reimbursement is approved by an insurance company and the amount is payable. + References No definition available. + Details
Name: | lxu_ApprovedInsurancePaymentDuePeriod
Namespace Prefix: | lxu_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of gain contingency relating to an insurance recovery that was deferred as of the balance sheet date. + References No definition available. + Details
Name: | lxu_DeferredGainOnInsuranceRecovery
Namespace Prefix: | lxu_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The total amount of an insurance recovery recognized as income as of period end. + References No definition available. + Details
Name: | lxu_InsuranceRecoveryIncome
Namespace Prefix: | lxu_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount due in settlement of a claim for reimbursement from an insurance company when the Company has suffered a loss covered under an insurance policy. For classified balance sheets, represents the current amount receivable, that is amounts expected to be collected within one year or the normal 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 -Paragraph 1 -Subparagraph (SX 210.5-02.8) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_InsuranceSettlementsReceivableCurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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