v3.25.1
STOCK-BASED AWARDS (Narrative) (Details)
$ / shares in Units, $ in Millions
3 Months Ended
Mar. 31, 2025
USD ($)
ShareBasedCompensationPlan
$ / shares
shares
Mar. 31, 2024
USD ($)
$ / shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Unrecognized compensation expense, unvested stock options | $ $ 130.6  
Weighted average period of recognition, unvested stock options 2 years 11 months 1 day  
Number of stock plans | ShareBasedCompensationPlan 4  
Option shares granted 1,687,000  
Intrinsic value of stock options exercised | $ $ 12.2 $ 2.8
Stock Option [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Award vesting period 4 years  
Maximum contractual term 10 years  
Weighted average grant date fair value per share | $ / shares $ 36.4 $ 20.90
PRSU's [Member] | Minimum [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Share payout levels, percentage 0.00%  
PRSU's [Member] | Maximum [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Share payout levels, percentage 100.00%  
2012 Plan [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Option shares granted 0  
Base number of shares that may be issuable under stock plan 3,076,923  
2012 Plan [Member] | Maximum [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Number of shares authorized 10,769,230  
Annual percentage limit for incremental shares that may be issued 3.00%  
2021 Plan [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Base number of shares that may be issuable under stock plan 9,000,000  
2021 Plan [Member] | Maximum [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Base number of shares that may be issuable under stock plan 9,000,000  
2021 Plan [Member] | Common Class A [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Reserved under stock based plans 10,903,345  
Number of shares available for grant 2,552,463  
NuVasive 2014 Plan [Member] | Common Class A [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Reserved under stock based plans 168,414  
Number of shares available for grant 0  
Ellipse 2015 Plan [Member] | Common Class A [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Reserved under stock based plans 357,897  
Number of shares available for grant 299,780