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Borrowings (Interest Rate Swap on Senior Secured Notes) (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2014
Dec. 31, 2013
Debt Instrument [Line Items]    
Fair market value of Rate Agreement - asset (liability) $ (2,465)lby_AssetsLiabilitiesNetFairValueDisclosureRecurring $ (1,660)lby_AssetsLiabilitiesNetFairValueDisclosureRecurring
Adjustment to increase (decrease) the carrying value of the related long-term debt 0lby_DebtInstrumentAdjustmentToCarryingValueRelatedToInterestRateAgreement (1,324)lby_DebtInstrumentAdjustmentToCarryingValueRelatedToInterestRateAgreement
Derivative Asset | Interest Rate Agreements | Designated as Hedging Instrument    
Debt Instrument [Line Items]    
Fair market value of Rate Agreement - asset (liability) $ 0lby_AssetsLiabilitiesNetFairValueDisclosureRecurring
/ us-gaap_BalanceSheetLocationAxis
= lby_DerivativeAssetMember
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_InterestRateSwapMember
/ us-gaap_HedgingDesignationAxis
= us-gaap_DesignatedAsHedgingInstrumentMember		 $ (2,073)lby_AssetsLiabilitiesNetFairValueDisclosureRecurring
/ us-gaap_BalanceSheetLocationAxis
= lby_DerivativeAssetMember
/ us-gaap_DerivativeInstrumentRiskAxis
= us-gaap_InterestRateSwapMember
/ us-gaap_HedgingDesignationAxis
= us-gaap_DesignatedAsHedgingInstrumentMember