XML 121 R100.htm IDEA: XBRL DOCUMENT
v3.3.1.900

Contingencies Hardboard Contingencies Rollforward (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Loss Contingency Accrual [Roll Forward] |  |  |
Beginning Balance | $ 14.2 |  |
Adjusted to expense (income) during the year |  | $ 0.0 | $ 0.0
Ending Balance | 16.8 | 14.2 |
Reserve for Environmental Costs [Member] |  |  |
Loss Contingency Accrual [Roll Forward] |  |  |
Beginning Balance | 13.6 | 14.9 |
Adjusted to expense (income) during the year | 0.5 | 1.3 | 1.3
Payments for Environmental Liabilities | (0.7) | (3.1) | (0.5)
Ending Balance | 16.6 | 13.6 | 14.9
Other operating charges and credits [Member] |  |  |
Loss Contingency Accrual [Roll Forward] |  |  |
Adjusted to expense (income) during the year | 3.2 | 0.5 | $ 0.0
Hardboard Siding Reserves |  |  |
Loss Contingency Accrual [Roll Forward] |  |  |
Beginning Balance | 0.6 |  |
Ending Balance | $ 0.2 | $ 0.6 |

X
- Definition Amount of loss contingency liability. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14326-108349 + Details
Name: | us-gaap_LossContingencyAccrualAtCarryingValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of increase (decrease) in loss contingency liability. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14326-108349 + Details
Name: | us-gaap_LossContingencyAccrualCarryingValuePeriodIncreaseDecrease
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
Name: | us-gaap_LossContingencyAccrualRollForward
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Cash outflows made during the period for environmental remediation activities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 17 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3367-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585 + Details
Name: | us-gaap_PaymentsForEnvironmentalLiabilities
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_LossContingenciesByNatureOfContingencyAxis=us-gaap_ReserveForEnvironmentalCostsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LossContingenciesByNatureOfContingencyAxis=lpx_OtherOperatingChargesAndCreditsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LossContingenciesByNatureOfContingencyAxis=lpx_HardboardSidingReservesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |