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Other Operating Credits and Charges, Net (Details) (USD $) In Millions, unless otherwise specified | 3 Months Ended
--- | ---
Mar. 31, 2015 | Mar. 31, 2014
Other Operating Credits And Charges, Net [Abstract] |  |
Other operating charges and credits, net | $ 11.6 lpx_NonCashOtherOperatingChargesAndCredits | $ 0 lpx_NonCashOtherOperatingChargesAndCredits

X
- Definition Non Cash Other Operating Charges And Credits + References No definition available. + Details
Name: | lpx_NonCashOtherOperatingChargesAndCredits
Namespace Prefix: | lpx_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Details
Name: | lpx_OtherOperatingCreditsAndChargesNetAbstract
Namespace Prefix: | lpx_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration