v3.10.0.1
Document and Entity Information - shares
6 Months Ended
Jun. 30, 2018
Jul. 31, 2018
Entity Registrant Name A. H. Belo Corp  
Entity Central Index Key 0001413898  
Document Type 10-Q  
Document Period End Date Jun. 30, 2018  
Amendment Flag false  
Document Fiscal Year Focus 2018  
Document Fiscal Period Focus Q2  
Current Fiscal Year End Date --12-31  
Entity Filer Category Accelerated Filer  
Trading Symbol ahc  
Series A [Member]    
Entity Common Stock, Shares Outstanding   19,227,147
Series B [Member]    
Entity Common Stock, Shares Outstanding   2,469,555