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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	$ 11.6lpx_NonCashOtherOperatingChargesAndCredits	$ 0lpx_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

X

- Details

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