Basis For Presentation (Details) (Maximum [Member])	6 Months Ended
Jun. 30, 2011
Maximum [Member]
Percentage Used To Determine Noncontrolling Interest Presentation	1.00

Name:

lpx_PercentageUsedToDetermineNoncontrollingInterestPresentation

Namespace Prefix:

lpx

Data Type:

xbrli:decimalItemType

Balance Type:

na

Period Type:

duration