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Other Operating Expenses, Net Other Operating Expenses (Income) (Details) (USD $)
 3 Months Ended 12 Months Ended
Mar. 31, 2014
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Other Income and Expenses [Abstract]          
Impairment of long-lived assets $ 2,900,000us-gaap_AssetImpairmentCharges $ 3,046,000us-gaap_AssetImpairmentCharges $ 0us-gaap_AssetImpairmentCharges $ 0us-gaap_AssetImpairmentCharges  
Environmental Remediation Expense   340,000us-gaap_EnvironmentalRemediationExpense 0us-gaap_EnvironmentalRemediationExpense 0us-gaap_EnvironmentalRemediationExpense  
Loss on sub-lease   0laws_Lossonsublease 2,928,000laws_Lossonsublease 0laws_Lossonsublease  
Employment tax matter   0us-gaap_TaxAdjustmentsSettlementsAndUnusualProvisions (400,000)us-gaap_TaxAdjustmentsSettlementsAndUnusualProvisions 0us-gaap_TaxAdjustmentsSettlementsAndUnusualProvisions 1,200,000us-gaap_TaxAdjustmentsSettlementsAndUnusualProvisions
Tax Matter Settlement     800,000laws_TaxMatterSettlement    
Term of Lease   10 years      
Ending balance   $ 3,386,000us-gaap_OtherOperatingIncomeExpenseNet $ 2,528,000us-gaap_OtherOperatingIncomeExpenseNet $ 0us-gaap_OtherOperatingIncomeExpenseNet