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Acquisition of ALF-X Surgical Robotic System - Additional Information (Detail)
6 Months Ended 12 Months Ended
Sep. 21, 2015
USD ($)
shares
Jun. 30, 2016
USD ($)
Dec. 31, 2015
USD ($)
Sep. 21, 2015
EUR (€)
Business Acquisition [Line Items]        
Securities consideration held in escrow percentage 10.00%      
Escrow and security interest period 24 months      
Intellectual property, net   $ 42,571,000 $ 46,898,000  
Minimum [Member]        
Business Acquisition [Line Items]        
Amortization period   7 years    
Maximum [Member]        
Business Acquisition [Line Items]        
Amortization period   10 years    
ALF-X Surgical Robotic System Acquisition [Member]        
Business Acquisition [Line Items]        
Common shares issued | shares 15,543,413      
Cash consideration $ 25,000,000      
Acquisition agreement, description   The Lock-up Agreement provides that SOFAR may sell, transfer or convey: (i) no more than 50% of the Securities Consideration during the period commencing on the one-year anniversary of the Closing Date and ending on the eighteen-month anniversary of the Closing Date; and (ii) no more than 75% of the Securities Consideration during the period commencing on the eighteen-month anniversary of the Closing Date and ending on the two-year anniversary of the Closing Date.    
Intellectual property, net $ 48,500,000      
Amortization period 7 years      
ALF-X Surgical Robotic System Acquisition [Member] | Maximum [Member] | Ending on Eighteen Month Anniversary [Member]        
Business Acquisition [Line Items]        
Percentage of securities consideration 50.00%      
ALF-X Surgical Robotic System Acquisition [Member] | Maximum [Member] | Ending on Two Year Anniversary [Member]        
Business Acquisition [Line Items]        
Percentage of securities consideration 75.00%      
ALF-X Surgical Robotic System Acquisition [Member] | First Tranche [Member]        
Business Acquisition [Line Items]        
Cash consideration $ 25,000,000      
ALF-X Surgical Robotic System Acquisition [Member] | Second Tranche [Member]        
Business Acquisition [Line Items]        
Cash consideration payable | €       € 10,000,000
Gross proceeds from financing $ 50,000,000      
Interest rate 9.00%     9.00%
ALF-X Surgical Robotic System Acquisition [Member] | Second Tranche [Member] | Minimum [Member]        
Business Acquisition [Line Items]        
Cash on hand $ 50,000,000      
ALF-X Surgical Robotic System Acquisition [Member] | Third Tranche [Member]        
Business Acquisition [Line Items]        
Cash consideration payable | €       € 15,000,000
ALF-X Surgical Robotic System Acquisition [Member] | Third Tranche [Member] | Minimum [Member]        
Business Acquisition [Line Items]        
Target revenue to be achieved | €       25,000,000
ALF-X Surgical Robotic System Acquisition [Member] | Fourth Tranche [Member]        
Business Acquisition [Line Items]        
Cash consideration payable | €       2,500,000
ALF-X Surgical Robotic System Acquisition [Member] | U.S. Dollars [Member]        
Business Acquisition [Line Items]        
Cash consideration $ 25,000,000      
ALF-X Surgical Robotic System Acquisition [Member] | Euro [Member]        
Business Acquisition [Line Items]        
Cash consideration payable | €       € 27,500,000
TransEnterix Italia [Member]        
Business Acquisition [Line Items]        
Membership interests percentage under Security agreement 10.00%     10.00%
Legal, consulting and other costs related to acquisition     $ 4,200,000