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Long-term Debt and Financing Arrangements - Phantom (Details)
 3 Months Ended
Mar. 31, 2015
Eurocurrency Rate [Member]  
Debt Instrument [Line Items]  
Basis spread on variable rate 1.00%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_VariableRateAxis
= ldl_EurocurrencyRateMember
Minimum [Member]  
Debt Instrument [Line Items]  
Fee percentage on unused portion of credit facility 0.20%us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
Minimum [Member] | Base Rate [Member]  
Debt Instrument [Line Items]  
Basis spread on variable rate 0.15%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
/ us-gaap_VariableRateAxis
= us-gaap_BaseRateMember
Minimum [Member] | Eurocurrency Rate [Member]  
Debt Instrument [Line Items]  
Basis spread on variable rate 0.75%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
/ us-gaap_VariableRateAxis
= ldl_EurocurrencyRateMember
Maximum [Member]  
Debt Instrument [Line Items]  
Fee percentage on unused portion of credit facility 0.30%us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
Maximum [Member] | Base Rate [Member]  
Debt Instrument [Line Items]  
Basis spread on variable rate 1.00%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
/ us-gaap_VariableRateAxis
= us-gaap_BaseRateMember
Maximum [Member] | Eurocurrency Rate [Member]  
Debt Instrument [Line Items]  
Basis spread on variable rate 1.75%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
/ us-gaap_VariableRateAxis
= ldl_EurocurrencyRateMember