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Equity-based compensation - Summary of Phantom Plan Award activity (Detail) - $ / shares
1 Months Ended 6 Months Ended 12 Months Ended
Feb. 10, 2021
Jul. 03, 2021
Dec. 31, 2020
Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of awards, Granted 90,000      
Number of awards, Forfeited (900)      
Number of awards, Vested   0    
Bio Ventus LLC [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of awards, Granted     1.3  
Weighted average grant-date fair value, Granted       $ 0
Bio Ventus LLC [Member] | Other Phantom Unit [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Weighted average grant-date fair value, Granted       $ 15.31
Bio Ventus LLC [Member] | Two Thousand and Twelve [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Beginning balance (in shares)     658  
Number of awards, Granted     0  
Number of awards, Converted to cash     0  
Number of awards, Forfeited     0  
Ending Balance (in shares)     658 658
Number of awards, Awards vested     658  
Beginning balance (in dollars per share)     $ 5.72  
Weighted average grant-date fair value, Granted     0  
Weighted average grant-date fair value, Converted to cash     0  
Weighted average grant-date fair value, Forfeited     0  
Ending balance (in dollars per share)     5.72 $ 5.72
Weighted average grant-date fair value, Awards vested     $ 5.72  
Bio Ventus LLC [Member] | Two Thousand and Twelve [Member] | Other Phantom Unit [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Beginning balance (in shares)     0 2
Number of awards, Vested       2
Ending Balance (in shares)       0
Beginning balance (in dollars per share)     $ 0 $ 10.01
Weighted average grant-date fair value, Vested       10.01
Ending balance (in dollars per share)       $ 0
Bio Ventus LLC [Member] | Two Thousand and Fifteen [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Beginning balance (in shares)     1,139  
Number of awards, Granted     553  
Number of awards, Converted to cash     (146)  
Number of awards, Forfeited     (124)  
Ending Balance (in shares)     1,422 1,139
Number of awards, Awards vested     495  
Beginning balance (in dollars per share)     $ 10.24  
Weighted average grant-date fair value, Granted     10.29  
Weighted average grant-date fair value, Converted to cash     6.45  
Weighted average grant-date fair value, Forfeited     12.98  
Ending balance (in dollars per share)     10.41 $ 10.24
Weighted average grant-date fair value, Awards vested     $ 8.15  
Bio Ventus LLC [Member] | Two Thousand and Fifteen [Member] | Other Phantom Unit [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Beginning balance (in shares)     927 667
Number of awards, Vested       147
Ending Balance (in shares)       927
Beginning balance (in dollars per share)     $ 11.62 $ 12.71
Weighted average grant-date fair value, Vested       10.81
Ending balance (in dollars per share)       $ 11.62