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Subsequent Events - Additional Information (Detail) (USD $) In Millions, unless otherwise specified | 3 Months Ended | 1 Months Ended
--- | --- | ---
Mar. 31, 2013 | Apr. 30, 2013 Subsequent Events [Member] Cherokee Facility [Member] Business Interruption [Member]
Subsequent Event [Line Items] |  |
Approved insurance payments received |  | $ 15
Earliest date agreement can be terminated | Apr. 09, 2015 |

X
- Definition The earliest date which the ammonium nitrate supply agreement can be terminated. + References No definition available. + Details
Name: | lxu_AmmoniumNitrateSupplyAgreementEarliestTerminationDate
Namespace Prefix: | lxu_
Data Type: | xbrli:dateItemType
Balance Type: | na
Period Type: | duration

X
- Definition Proceeds from insurance recoveries. + References No definition available. + Details
Name: | lxu_ProceedsFromInsuranceRecoveries
Namespace Prefix: | lxu_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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