XML 12 R1.htm IDEA: XBRL DOCUMENT v3.21.2
Cover Page - shares
9 Months Ended
Sep. 30, 2021
Oct. 31, 2021
Cover [Abstract]    
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Sep. 30, 2021  
Document Transition Report false  
Entity File Number 1-39361  
Entity Registrant Name Dun & Bradstreet Holdings, Inc.  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 83-2008699  
Entity Address, Address Line One 101 JFK Parkway  
Entity Address, City or Town Short Hills  
Entity Address, State or Province NJ  
Entity Address, Postal Zip Code 07078  
City Area Code 973  
Local Phone Number 921-5500  
Title of 12(b) Security Common Stock, $0.0001 par value  
Trading Symbol DNB  
Security Exchange Name NYSE  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Non-accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   431,189,078
Amendment Flag false  
Document Fiscal Year Focus 2021  
Document Fiscal Period Focus Q3  
Entity Central Index Key 0001799208  
Current Fiscal Year End Date --12-31