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Property and Equipment (Detail) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2014
Dec. 31, 2013
Property, Plant and Equipment [Line Items]    
Machinery, furniture and equipment $ 85,556us-gaap_MachineryAndEquipmentGross $ 79,132us-gaap_MachineryAndEquipmentGross
Leasehold improvements 28,056us-gaap_LeaseholdImprovementsGross 26,959us-gaap_LeaseholdImprovementsGross
Building and improvements 1,604us-gaap_BuildingsAndImprovementsGross 1,604us-gaap_BuildingsAndImprovementsGross
Construction in progress 1,108us-gaap_ConstructionInProgressGross 104us-gaap_ConstructionInProgressGross
Land 100us-gaap_Land 100us-gaap_Land
Property plant and equipment gross 116,424us-gaap_PropertyPlantAndEquipmentGross 107,899us-gaap_PropertyPlantAndEquipmentGross
Less: accumulated depreciation and amortization (89,623)us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment (80,201)us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
Total $ 26,801us-gaap_PropertyPlantAndEquipmentNet $ 27,698us-gaap_PropertyPlantAndEquipmentNet