v3.10.0.1
Document And Entity Information - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2018
Mar. 06, 2019
Jun. 30, 2018
Document And Entity Information [Abstract]      
Entity Registrant Name ORTHOPEDIATRICS CORP    
Entity Central Index Key 0001425450    
Entity Current Reporting Status Yes    
Entity Voluntary Filers No    
Current Fiscal Year End Date --12-31    
Entity Filer Category Smaller Reporting Company    
Entity Well Known Seasoned Issuer No    
Document Type 10-K    
Document Period End Date Dec. 31, 2018    
Document Fiscal Year Focus 2018    
Document Fiscal Period Focus FY    
Amendment Flag false    
Entity Common Stock, Shares Outstanding   14,538,302  
Entity Public Float     $ 182.2