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Lines of Credit and Financing Arrangements (Details 4) (Revolving Credit Facility [Member])
 12 Months Ended
Dec. 31, 2014
Maximum [Member]
  
Line of Credit Facility [Line Items]  
Indebtedness To Adjusted EBITDA Ratio 3.5lii_DebtInstrumentIndebtednessToAdjustedEBITDARatio
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
Minimum [Member]
  
Line of Credit Facility [Line Items]  
Cash Flow To Net Interest Expense Ratio 3.0lii_DebtInstrumentCashFlowToNetInterestExpenseRatio
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
/ us-gaap_RangeAxis
= us-gaap_MinimumMember