v3.19.3
Document And Entity Information - shares
9 Months Ended
Sep. 30, 2019
Oct. 31, 2019
Document Information [Line Items]    
Entity Central Index Key 0000043196  
Entity Registrant Name GRAY TELEVISION INC  
Amendment Flag false  
Current Fiscal Year End Date --12-31  
Document Fiscal Period Focus Q3  
Document Fiscal Year Focus 2019  
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Sep. 30, 2019  
Document Transition Report false  
Entity File Number 1-13796  
Entity Incorporation, State or Country Code GA  
Entity Tax Identification Number 58-0285030  
Entity Address, Address Line One 4370 Peachtree Road, NE  
Entity Address, City or Town Atlanta  
Entity Address, State or Province GA  
Entity Address, Postal Zip Code 30319  
City Area Code 404  
Local Phone Number 504-9828  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Large Accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company false  
Entity Shell Company false  
Common Class A [Member]    
Document Information [Line Items]    
Title of 12(b) Security Class A common stock (no par value)  
Trading Symbol GTN.A  
Security Exchange Name NYSE  
Entity Common Stock, Shares Outstanding   6,881,192
Common Stock [Member]    
Document Information [Line Items]    
Title of 12(b) Security common stock (no par value)  
Trading Symbol GTN  
Security Exchange Name NYSE  
Entity Common Stock, Shares Outstanding   93,633,773