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Assets Held for Sale (Details) (USD $) In Millions, unless otherwise specified | 3 Months Ended |
--- | --- | ---
Mar. 31, 2012 | Mar. 31, 2011 | Dec. 31, 2011
Property, Plant and Equipment [Line Items] |  |  |
Proceeds from sales of assets | $ 8.9 | $ 0 |
Property, plant and equipment held for sale [Abstract] |  |  |
Assets held-for-sale, property, plant and equipment | 197.3 |  | 214.3
Assets held for sale acumulated depreciation | (153.7) |  | (162.4)
Assets Held For Sale Property Plant and Equipment Net | 43.6 |  | 51.9
Land Land Improvements And Logging Roads Net of Road Amortization [Member] |  |  |
Property, plant and equipment held for sale [Abstract] |  |  |
Assets held-for-sale, property, plant and equipment | 10.1 |  | 13.1
Building [Member] |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Proceeds from sales of assets | 8.5 |  |
Property, plant and equipment held for sale [Abstract] |  |  |
Assets held-for-sale, property, plant and equipment | 17.1 |  | 22.9
Machinery and Equipment [Member] |  |  |
Property, plant and equipment held for sale [Abstract] |  |  |
Assets held-for-sale, property, plant and equipment | $ 170.1 |  | $ 178.3

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- Definition Assets Held For Sale Accumulated Depreciation + References No definition available. + Details
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Namespace Prefix: | lpx_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Assets Held For Sale Property Plant and Equipment Net + References No definition available. + Details
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Namespace Prefix: | lpx_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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- Definition Property, plant and equipment that is held for sale apart from normal operations and anticipated to be sold in less than one year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 144 -Paragraph 46 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 45 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=6892542&loc=d3e1107-107759 + Details
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- Definition Aggregate cash proceeds received from a combination of transactions that are classified as investing activities in which assets, which may include one or more investments, are sold to third-party buyers. This element can be used by entities to aggregate proceeds from all asset sales that are classified as investing activities. + References No definition available. + Details
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Balance Type: | debit
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- Details
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- Details
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Data Type: | xbrli:stringItemType
Balance Type: | na
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