Document And Entity Information - shares
6 Months Ended
Jun. 30, 2019
Jul. 25, 2019
Document and Entity Information [Abstract]    
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Jun. 30, 2019  
Document Transition Report false  
Entity File Number 0-17196  
Entity Registrant Name MGP INGREDIENTS INC  
Entity Incorporation, State or Country Code KS  
Entity Tax Identification Number 45-4082531  
Entity Address, Address Line One 100 Commercial Street  
Entity Address, City or Town Atchison  
Entity Address, State or Province KS  
Entity Address, Postal Zip Code 66002  
City Area Code 913  
Local Phone Number 367-1480  
Title of each class Common Stock, no par value  
Trading Symbol MGPI  
Security Exchange Name NASDAQ  
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  
Entity Common Stock, Shares Outstanding   17,024,938
Current Fiscal Year End Date --12-31  
Amendment Flag false  
Entity Central Index Key 0000835011  
Document Fiscal Year Focus 2019  
Document Fiscal Period Focus Q2