Document and Entity Information - shares
9 Months Ended
Sep. 30, 2019
Oct. 22, 2019
Document And Entity Information [Abstract]    
Entity Incorporation, State or Country Code DE  
Title of 12(b) Security Common Stock, par value $0.01 per share  
Document Transition Report false  
Document Quarterly Report true  
Entity Registrant Name HURON CONSULTING GROUP INC.  
Entity Address, Address Line One 550 West Van Buren Street  
Entity Address, City or Town Chicago  
Entity Address, State or Province IL  
Entity Address, Postal Zip Code 60607  
Trading Symbol HURN  
Entity Central Index Key 0001289848  
Current Fiscal Year End Date --12-31  
Entity Filer Category Large Accelerated Filer  
Document Type 10-Q  
Document Period End Date Sep. 30, 2019  
Document Fiscal Year Focus 2019  
Document Fiscal Period Focus Q3  
Amendment Flag false  
Entity Common Stock, Shares Outstanding   22,913,192
Entity File Number 000-50976  
City Area Code (312)  
Local Phone Number 583-8700  
Security Exchange Name NASDAQ  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Shell Company false  
Entity Tax Identification Number 01-0666114  
Entity Small Business false  
Entity Emerging Growth Company false