Document and Entity Information - shares
9 Months Ended
Sep. 30, 2018
Oct. 31, 2018
Document And Entity Information    
Entity Registrant Name Turtle Beach Corporation  
Entity Central Index Key 0001493761  
Current Fiscal Year End Date --12-31  
Entity Filer Category Non-accelerated Filer  
Entity Emerging Growth Company false  
Entity Small Business true  
Document Type 10-Q/A  
Document Period End Date Sep. 30, 2018  
Document Fiscal Year Focus 2018  
Document Fiscal Period Focus Q3  
Amendment Flag true  
Amendment Description Restatement of condensed consolidated financial statements to correct for change in accounting treatment  
Entity Common Stock, Shares Outstanding   14,239,589