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Overview and Basis of Presentation - Additional Information (Details) - USD ($)
shares in Millions, $ in Millions
6 Months Ended 12 Months Ended
Aug. 04, 2017
Jun. 21, 2017
Mar. 28, 2017
Oct. 01, 2016
Jun. 30, 2017
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Organization Consolidation And Presentation Of Financial Statements [Line Items]                
Distribution of common shares during spinoff       26.2        
Percentage of distribution of common shares during spinoff       80.75%        
Description of distribution of common shares during spinoff           Holders of RRD common stock received one share of DFIN common stock for every eight shares of RRD common stock held on September 23, 2016.    
Proceeds from the issuance of common stock           $ 0.0 $ 1.2 $ 18.8
R.R. Donnelley & Sons Company                
Organization Consolidation And Presentation Of Financial Statements [Line Items]                
Number of common stock retained   0.1   6.2        
Ownership percentage       19.25%        
Number of common stock sold 0.1              
RRD and Affiliates                
Organization Consolidation And Presentation Of Financial Statements [Line Items]                
Net Sales         $ 8.3      
Cost of sales         $ 51.8      
Underwritten Public Offering | R.R. Donnelley & Sons Company                
Organization Consolidation And Presentation Of Financial Statements [Line Items]                
Number of common stock sold   6.1            
Underwritten Public Offering | R.R. Donnelley & Sons Company | LSC Communication Inc.                
Organization Consolidation And Presentation Of Financial Statements [Line Items]                
Number of common stock sold     6.2          
Over Allotment Option | R.R. Donnelley & Sons Company                
Organization Consolidation And Presentation Of Financial Statements [Line Items]                
Proceeds from the issuance of common stock   $ 18.8            
Over Allotment Option | R.R. Donnelley & Sons Company | Common Stock                
Organization Consolidation And Presentation Of Financial Statements [Line Items]                
Stock issued upon exercise of underwriters options   0.9