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Consolidated Statements of Stockholders' Equity (USD $) In Millions, except Share data | Total | Common Stock | Treasury Stock | Additional Paid-in Capital | Retained Earnings | Accumulated Comprehensive Loss
--- | --- | --- | --- | --- | --- | ---
Balance, Beginning at Dec. 31, 2011 |  |  |  |  |  |
Net income (loss) | $ 28.8 us-gaap_NetIncomeLoss |  |  |  | $ 28.8 us-gaap_NetIncomeLoss / us-gaap_StatementEquityComponentsAxis = us-gaap_RetainedEarningsMember |
Issuance for employee stock plans and stock-based compensation | (2.3)us-gaap_StockIssuedDuringPeriodValueEmployeeStockPurchasePlan |  | 21.5 us-gaap_StockIssuedDuringPeriodValueEmployeeStockPurchasePlan / us-gaap_StatementEquityComponentsAxis = us-gaap_TreasuryStockMember | (23.8)us-gaap_StockIssuedDuringPeriodValueEmployeeStockPurchasePlan / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |  |
Issuance of shares for employee stock plans and stock-based compensation |  |  | (800,000)us-gaap_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans / us-gaap_StatementEquityComponentsAxis = us-gaap_TreasuryStockMember |  |  |
Amortization of restricted stock grants | 8.1 us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue |  |  | 8.1 us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |  |
Issuance of shares for public offering |  |  |  |  |  |
Exercise of stock warrants |  | 0.6 us-gaap_ProceedsFromWarrantExercises / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |  |  |  |
Exercise of stock warrants, shares |  | 600,000 us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |  |  |  |
Exercise of stock warrants | 0 us-gaap_AdjustmentsToAdditionalPaidInCapitalWarrantIssued |  |  |  |  |
Redemption of redeemable non-controlling interest |  |  |  |  |  | (1.7)us-gaap_NoncontrollingInterestIncreaseFromBusinessCombination / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedOtherComprehensiveIncomeMember
Other comprehensive loss | (1.7)us-gaap_OtherComprehensiveIncomeLossNetOfTax |  |  |  |  |
Balance, Ending, Shares at Dec. 31, 2012 |  | 150,400,000 us-gaap_CommonStockSharesOutstanding / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember | 11,900,000 us-gaap_CommonStockSharesOutstanding / us-gaap_StatementEquityComponentsAxis = us-gaap_TreasuryStockMember |  |  |
Balance, Ending at Dec. 31, 2012 | 1,033.8 lpx_StockholdersEquityIncludingTemporaryEquity | 150.4 lpx_StockholdersEquityIncludingTemporaryEquity / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember | (252.9)lpx_StockholdersEquityIncludingTemporaryEquity / us-gaap_StatementEquityComponentsAxis = us-gaap_TreasuryStockMember | 533.6 lpx_StockholdersEquityIncludingTemporaryEquity / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember | 710.6 lpx_StockholdersEquityIncludingTemporaryEquity / us-gaap_StatementEquityComponentsAxis = us-gaap_RetainedEarningsMember | (107.9)lpx_StockholdersEquityIncludingTemporaryEquity / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedOtherComprehensiveIncomeMember
Net income (loss) | 177.1 us-gaap_NetIncomeLoss |  |  |  | 177.1 us-gaap_NetIncomeLoss / us-gaap_StatementEquityComponentsAxis = us-gaap_RetainedEarningsMember |
Issuance for employee stock plans and stock-based compensation | (12.0)us-gaap_StockIssuedDuringPeriodValueEmployeeStockPurchasePlan |  | 20.7 us-gaap_StockIssuedDuringPeriodValueEmployeeStockPurchasePlan / us-gaap_StatementEquityComponentsAxis = us-gaap_TreasuryStockMember | (32.7)us-gaap_StockIssuedDuringPeriodValueEmployeeStockPurchasePlan / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |  |
Issuance of shares for employee stock plans and stock-based compensation |  |  | (1,000,000)us-gaap_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans / us-gaap_StatementEquityComponentsAxis = us-gaap_TreasuryStockMember |  |  |
Amortization of restricted stock grants | 8.4 us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue |  |  | 8.4 us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |  |
Issuance of shares for public offering | 1,621,362 us-gaap_StockIssuedDuringPeriodSharesNewIssues |  |  |  |  |
Exercise of stock warrants |  | 1.6 us-gaap_ProceedsFromWarrantExercises / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |  |  |  |
Exercise of stock warrants, shares |  | 1,600,000 us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |  |  |  |
Exercise of stock warrants | 0 us-gaap_AdjustmentsToAdditionalPaidInCapitalWarrantIssued |  |  | (1.6)us-gaap_AdjustmentsToAdditionalPaidInCapitalWarrantIssued / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |  |
Issuance of shares for employee stock plans and stock-based compensation | 0.3 us-gaap_AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation |  |  | 0.3 us-gaap_AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |  |
Tax cost of employee stock plan transactions | (13.2)us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities |  |  |  |  |
Other comprehensive loss | 18.7 us-gaap_OtherComprehensiveIncomeLossNetOfTax |  |  |  |  | 18.7 us-gaap_OtherComprehensiveIncomeLossNetOfTax / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedOtherComprehensiveIncomeMember
Balance, Ending, Shares at Dec. 31, 2013 |  | 152,000,000 us-gaap_CommonStockSharesOutstanding / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember | 10,900,000 us-gaap_CommonStockSharesOutstanding / us-gaap_StatementEquityComponentsAxis = us-gaap_TreasuryStockMember |  |  |
Balance, Ending at Dec. 31, 2013 | 1,226.3 lpx_StockholdersEquityIncludingTemporaryEquity | 152.0 lpx_StockholdersEquityIncludingTemporaryEquity / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember | (232.2)lpx_StockholdersEquityIncludingTemporaryEquity / us-gaap_StatementEquityComponentsAxis = us-gaap_TreasuryStockMember | 508.0 lpx_StockholdersEquityIncludingTemporaryEquity / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember | 887.7 lpx_StockholdersEquityIncludingTemporaryEquity / us-gaap_StatementEquityComponentsAxis = us-gaap_RetainedEarningsMember | (89.2)lpx_StockholdersEquityIncludingTemporaryEquity / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedOtherComprehensiveIncomeMember
Net income (loss) | (75.4)us-gaap_NetIncomeLoss |  |  |  |  |
Issuance for employee stock plans and stock-based compensation | (0.7)us-gaap_StockIssuedDuringPeriodValueEmployeeStockPurchasePlan |  | 8.8 us-gaap_StockIssuedDuringPeriodValueEmployeeStockPurchasePlan / us-gaap_StatementEquityComponentsAxis = us-gaap_TreasuryStockMember | (9.5)us-gaap_StockIssuedDuringPeriodValueEmployeeStockPurchasePlan / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |  |
Issuance of shares for employee stock plans and stock-based compensation |  |  | (400,000)us-gaap_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans / us-gaap_StatementEquityComponentsAxis = us-gaap_TreasuryStockMember |  |  |
Amortization of restricted stock grants | 9.3 us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue |  |  | 9.3 us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |  |
Issuance of shares for public offering | 799,488 us-gaap_StockIssuedDuringPeriodSharesNewIssues |  |  |  |  |
Exercise of stock warrants |  | 0.8 us-gaap_ProceedsFromWarrantExercises / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |  |  |  |
Exercise of stock warrants, shares |  | 800,000 us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |  |  |  |
Exercise of stock warrants | 0 us-gaap_AdjustmentsToAdditionalPaidInCapitalWarrantIssued |  |  | (0.8)us-gaap_AdjustmentsToAdditionalPaidInCapitalWarrantIssued / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |  |
Issuance of shares for employee stock plans and stock-based compensation | (1.6)us-gaap_AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation |  |  | 0 us-gaap_AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |  |
Tax cost of employee stock plan transactions | (13.9)us-gaap_ExcessTaxBenefitFromShareBasedCompensationFinancingActivities |  |  |  |  |
Other comprehensive loss | (42.1)us-gaap_OtherComprehensiveIncomeLossNetOfTax |  |  |  |  | (42.1)us-gaap_OtherComprehensiveIncomeLossNetOfTax / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedOtherComprehensiveIncomeMember
Balance, Ending, Shares at Dec. 31, 2014 |  | 152,800,000 us-gaap_CommonStockSharesOutstanding / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember | 10,600,000 us-gaap_CommonStockSharesOutstanding / us-gaap_StatementEquityComponentsAxis = us-gaap_TreasuryStockMember |  |  |
Balance, Ending at Dec. 31, 2014 | $ 1,115.8 lpx_StockholdersEquityIncludingTemporaryEquity | $ 152.8 lpx_StockholdersEquityIncludingTemporaryEquity / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember | $ (225.0)lpx_StockholdersEquityIncludingTemporaryEquity / us-gaap_StatementEquityComponentsAxis = us-gaap_TreasuryStockMember | $ 507.0 lpx_StockholdersEquityIncludingTemporaryEquity / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember | $ 812.3 lpx_StockholdersEquityIncludingTemporaryEquity / us-gaap_StatementEquityComponentsAxis = us-gaap_RetainedEarningsMember | $ (131.3)lpx_StockholdersEquityIncludingTemporaryEquity / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedOtherComprehensiveIncomeMember

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