XML 12 R1.htm IDEA: XBRL DOCUMENT v3.19.1
Document And Entity Information - $ / shares
 3 Months Ended
Mar. 31, 2019
Apr. 23, 2019
Document And Entity Information [Abstract]    
Entity Registrant Name ACCO BRANDS CORP  
Trading Symbol ACCO  
Entity Listing, Par Value Per Share $ 0.01  
Entity Central Index Key 0000712034  
Current Fiscal Year End Date --12-31  
Entity Filer Category Large Accelerated Filer  
Document Type 10-Q  
Document Period End Date Mar. 31, 2019  
Document Fiscal Year Focus 2019  
Document Fiscal Period Focus Q1  
Amendment Flag false  
Entity Small Business false  
Entity Emerging Growth Company false  
Entity Common Stock, Shares Outstanding   102,089,019