v2.4.0.8
Select Balance Sheet Details - Property and Equipment, Net (Details) (USD $)
 3 Months Ended
Mar. 31, 2014
Dec. 31, 2013
Property, Plant and Equipment [Line Items]    
Property and Equipment, Gross $ 89,111,000 $ 89,839,000
Less accumulated depreciation and amortization (60,975,000) (61,809,000)
Property and Equipment, net 28,136,000 28,030,000
Surgical instruments [Member]
    
Property, Plant and Equipment [Line Items]    
Useful lives 4 years  
Property and Equipment, Gross 62,602,000 62,636,000
Machinery and equipment [Member]
    
Property, Plant and Equipment [Line Items]    
Capital Leased Assets, Gross 2,400,000 1,800,000
Useful lives 7 years  
Property and Equipment, Gross 14,414,000 14,692,000
Computer equipment [Member]
    
Property, Plant and Equipment [Line Items]    
Useful lives 3 years  
Property and Equipment, Gross 3,143,000 3,357,000
Office furniture and equipment [Member]
    
Property, Plant and Equipment [Line Items]    
Useful lives 5 years  
Property and Equipment, Gross 3,861,000 3,703,000
Leasehold improvements [Member]
    
Property, Plant and Equipment [Line Items]    
Various Useful lives of property and equipments various  
Property and Equipment, Gross 3,733,000 4,161,000
Building [Member]
    
Property, Plant and Equipment [Line Items]    
Useful lives 39 years  
Property and Equipment, Gross 77,000 52,000
Land [Member]
    
Property, Plant and Equipment [Line Items]    
Property and Equipment, Gross 11,000 10,000
Construction in progress [Member]
    
Property, Plant and Equipment [Line Items]    
Capital Leased Assets, Gross   600,000
Property and Equipment, Gross $ 1,270,000 $ 1,228,000