Quarterly report pursuant to sections 13 or 15(d)

Estimated Useful Lives of Property and Equipment (Detail)

v2.4.0.8
Estimated Useful Lives of Property and Equipment (Detail)
9 Months Ended
Sep. 30, 2013
Leasehold Improvements
 
Property, Plant and Equipment [Line Items]  
Leasehold improvements Lesser of lease term or estimated useful life
Minimum | Machinery and Equipment
 
Property, Plant and Equipment [Line Items]  
Property, plant and equipment, Useful Life 3 years
Minimum | Furniture and Fixtures
 
Property, Plant and Equipment [Line Items]  
Property, plant and equipment, Useful Life 5 years
Minimum | Computers And Software
 
Property, Plant and Equipment [Line Items]  
Property, plant and equipment, Useful Life 3 years
Maximum | Machinery and Equipment
 
Property, Plant and Equipment [Line Items]  
Property, plant and equipment, Useful Life 20 years
Maximum | Furniture and Fixtures
 
Property, Plant and Equipment [Line Items]  
Property, plant and equipment, Useful Life 7 years
Maximum | Computers And Software
 
Property, Plant and Equipment [Line Items]  
Property, plant and equipment, Useful Life 7 years