XML 18 R1.htm IDEA: XBRL DOCUMENT v3.24.0.1
Cover - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2023
Feb. 16, 2024
Jun. 30, 2023
Cover [Abstract]      
Document Type 10-K    
Document Annual Report true    
Document Period End Date Dec. 31, 2023    
Current Fiscal Year End Date --12-31    
Document Transition Report false    
Entity File Number 1-32961    
Entity Registrant Name CBIZ, INC.    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 22-2769024    
Entity Address, Address Line One 5959 Rockside Woods Blvd. N.    
Entity Address, Address Line Two Suite 600    
Entity Address, City or Town Independence,    
Entity Address, State or Province OH    
Entity Address, Postal Zip Code 44131    
City Area Code 216    
Local Phone Number 447-9000    
Title of 12(b) Security Common Stock, $0.01 Par Value    
Trading Symbol CBZ    
Security Exchange Name NYSE    
Entity Well-known Seasoned Issuer Yes    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Large Accelerated Filer    
Entity Small Business false    
Entity Emerging Growth Company false    
ICFR Auditor Attestation Flag true    
Document Financial Statement Error Correction false    
Entity Shell Company false    
Entity Public Float     $ 2,600
Entity Common Stock, Shares Outstanding   50,023,553  
Documents Incorporated by Reference
The registrant incorporates by reference in Part III hereof portions of its definitive Proxy Statement for its 2024 Annual Meeting of Stockholders.
    
Amendment Flag false    
Document Fiscal Year Focus 2023    
Document Fiscal Period Focus FY    
Entity Central Index Key 0000944148