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Schedule I - Condensed Financial Information of Registrant - Notes to Condensed Financial Statements - Interest Income of LSB Industries (Details Textual) (Parent Company [Member], USD $) | 12 Months Ended
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Dec. 31, 2011 | Dec. 31, 2010 | Dec. 31, 2009
Parent Company [Member] |  |  |
Interest Income of LSB Industries (Textual) [Abstract] |  |  |
Interest expense incurred from subsidiaries | $ 1,200,000 | $ 1,173,000 | $ 1,271,000
Interest income earned from subsidiaries | $ 1,262,000 | $ 956,000 | $ 2,317,000

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- Definition Interest income earned by the parent from subsidiaries. + References No definition available. + Details
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Namespace Prefix: | lxu_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Interest expense incurred by the parent from subsidiaries. + References No definition available. + Details
Name: | lxu_InterestExpenseIncurredFromSubsidiaries
Namespace Prefix: | lxu_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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