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Executive Benefit Agreements and Employee Savings Plans (Details 1) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
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Dec. 31, 2011 | Dec. 31, 2010 | Dec. 31, 2009
Executive benefit expenses |  |  |
Executive benefit costs | $ 158 | $ 169 | $ 75

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- Definition Costs associated with executive benefits agreements included in SG&A during the reporting period. + References No definition available. + Details
Name: | lxu_ExecutiveBenefitCosts
Namespace Prefix: | lxu_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Details
Name: | lxu_ExecutiveBenefitExpensesAbstract
Namespace Prefix: | lxu_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration