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Acquisitions - Additional Information (Detail) - USD ($)
1 Months Ended 12 Months Ended
Jul. 31, 2020
Mar. 26, 2020
Jul. 31, 2020
Jan. 31, 2019
Apr. 30, 2018
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Business Acquisition [Line Items]                
Cash consideration paid for assets acquired $ 7,200,000         $ 18,000,000   $ 44,294,000
Goodwill           84,018,000 $ 71,177,000  
Consideration transferred $ 7,575,000              
Purchase agreement of acquired business, description     The Company agreed to pay consideration of up to $7.6 million in accordance with the parties’ agreement          
Global Extremities [Member]                
Business Acquisition [Line Items]                
Goodwill           12,701,000    
Global Spine [Member]                
Business Acquisition [Line Items]                
Goodwill           71,317,000 71,177,000  
Wittenstein [Member] | FITBONE Asset Purchase Agreement [Member]                
Business Acquisition [Line Items]                
Date of assets purchase agreement   Feb. 03, 2020            
Cash consideration paid for assets acquired   $ 18,000,000.0            
Acquisition completion date   Mar. 26, 2020            
Goodwill   $ 11,300,000            
Acquisition related costs           400,000 600,000  
Revenues related to acquisitions           $ 1,900 $ 0  
Business acquisition date   Feb. 03, 2020            
Wittenstein [Member] | FITBONE Asset Purchase Agreement [Member] | Contract Manufacturing and Supply Agreement ("CMSA") [Member]                
Business Acquisition [Line Items]                
Goodwill           2 years    
Wittenstein [Member] | FITBONE Asset Purchase Agreement [Member] | Global Extremities [Member]                
Business Acquisition [Line Items]                
Goodwill   $ 11,100,000            
Wittenstein [Member] | FITBONE Asset Purchase Agreement [Member] | Global Spine [Member]                
Business Acquisition [Line Items]                
Goodwill   $ 200,000            
DR Medical, LLC and MedSelect Corporation [Member]                
Business Acquisition [Line Items]                
Consideration transferred     $ 7,600,000          
Spinal Kinetics [Member]                
Business Acquisition [Line Items]                
Date of assets purchase agreement         Apr. 30, 2018      
Goodwill         $ 17,612,000      
Business acquisition date         Apr. 30, 2018      
Business acquisition conversion of shares into net cash subject to adjustments         $ 45,000,000.0      
Fair value of the consideration transferred         76,600,000 $ 76,600,000    
Spinal Kinetics [Member] | Maximum [Member]                
Business Acquisition [Line Items]                
Future milestone payments         $ 60,000,000.0      
Options Medical [Member]                
Business Acquisition [Line Items]                
Consideration transferred       $ 6,400,000        
Fair value of the consideration transferred       $ 6,400,000