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Revenue Recognition and Accounts Receivable - Schedule of Net Sales by Major Product Category by Reporting Segment (Detail) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Revenue Recognition And Accounts Receivable [Line Items]    
Net sales $ 105,593 $ 104,823
Change 0.70%  
Bone Growth Therapies [Member]    
Revenue Recognition And Accounts Receivable [Line Items]    
Net sales $ 42,947 45,443
Change (5.50%)  
Spinal Implants [Member]    
Revenue Recognition And Accounts Receivable [Line Items]    
Net sales $ 25,701 22,926
Change 12.10%  
Biologics [Member]    
Revenue Recognition And Accounts Receivable [Line Items]    
Net sales $ 13,692 13,949
Change (1.80%)  
Global Spine [Member]    
Revenue Recognition And Accounts Receivable [Line Items]    
Net sales $ 82,340 82,318
Change 0.00%  
Global Orthopedics [Member]    
Revenue Recognition And Accounts Receivable [Line Items]    
Net sales $ 23,253 $ 22,505
Change 3.30%