v3.19.1
DOCUMENT AND ENTITY INFORMATION Document - USD ($)
12 Months Ended
Dec. 31, 2018
Mar. 11, 2019
Jun. 30, 2018
Entity Information [Line Items]      
Entity Registrant Name Avid Technology, Inc.    
Entity Central Index Key 0000896841    
Current Fiscal Year End Date --12-31    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Filer Category Accelerated Filer    
Entity Public Float     $ 209,476,088
Entity Common Stock, Shares Outstanding   40,864,915  
Document Fiscal Year Focus 2018    
Document Fiscal Period Focus FY    
Document Type 10-K    
Amendment Flag false    
Document Period End Date Dec. 31, 2018