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Segment Information (Details Textual) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2011 Person	Dec. 31, 2010	Dec. 31, 2009
Segment Reporting (Textual) [Abstract]
Number of persons employed by chemical business	492
Number of persons represented by unions under agreements which expire July through November 2013	149
Sales to unrelated third parties	$ 805,256	$ 609,905	$ 531,838
Chemical [Member]
Segment Reporting (Textual) [Abstract]
Sales to unrelated third parties	511,854	351,086	257,832
Chemical [Member] | Pryor Facility [Member] | Third Party Sales [Member]
Segment Reporting (Textual) [Abstract]
Sales to unrelated third parties	$ 91,900	$ 25,000
Orica [Member] | Chemical [Member]
Segment Reporting (Textual) [Abstract]
Percentage of net sales to one customer	11.00%	11.00%	7.00%

X

- Definition

Percentage of total net sales of net sales made to the chemical business segment customer.

+ References

No definition available.

+ Details

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Namespace Prefix:	lxu_
Data Type:	num:percentItemType
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X

- Definition

The number of persons employed by the chemical business segment.

+ References

No definition available.

+ Details

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Namespace Prefix:	lxu_
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X

- Definition

The number of persons employed by the chemical business segment represented by unions under agreements.

+ References

No definition available.

+ Details

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Namespace Prefix:	lxu_
Data Type:	xbrli:integerItemType
Balance Type:	na
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X

- Details

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Namespace Prefix:	lxu_
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X

- Definition

Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Article 5

-Section 03

-Paragraph 1



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.1)

-URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688

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