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Consolidated Statement of Stockholders' Equity (Parenthetical) | 12 Months Ended
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Dec. 31, 2012 | Dec. 31, 2011
Statement Of Stockholders Equity [Abstract] |  |
Number of converted redeemable preference shares | 68 | 13

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- Definition Number of redeemable preferred stock shares converted. + References No definition available. + Details
Name: | lxu_NumberOfRedeemablePreferredStockSharesConverted
Namespace Prefix: | lxu_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

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