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Cover Page - USD ($)
12 Months Ended
Dec. 31, 2023
Feb. 20, 2024
Jun. 30, 2023
Cover [Abstract]      
Document Type 10-K    
Amendment Flag false    
Document Financial Statement Error Correction [Flag] false    
Document Period End Date Dec. 31, 2023    
Document Fiscal Year Focus 2023    
Document Fiscal Period Focus FY    
Entity Registrant Name EMPLOYERS HOLDINGS, INC.    
Entity Central Index Key 0001379041    
Entity Current Reporting Status Yes    
Entity Voluntary Filers No    
Entity Interactive Data Current Yes    
Current Fiscal Year End Date --12-31    
Entity Filer Category Large Accelerated Filer    
Entity Well-known Seasoned Issuer Yes    
ICFR Auditor Attestation Flag true    
Entity Public Float     $ 975,608,394
Entity Common Stock Shares Outstanding (in shares)   25,302,289  
Entity Shell Company false    
Entity Small Business false    
Entity Emerging Growth Company false    
Title of 12(b) Security Common Stock, $0.01 par value per share    
Trading Symbol EIG    
Security Exchange Name NYSE    
Entity File Number 001-33245    
Entity Incorporation, State or Country Code NV    
Entity Tax Identification Number 04-3850065    
Entity Address, Address Line One 2340 Corporate Circle, Suite 200    
Entity Address, City or Town Henderson,    
Entity Address, State or Province NV    
Entity Address, Postal Zip Code 89074    
City Area Code 888    
Local Phone Number 682-6671    
Document Annual Report true    
Document Transition Report false    
Documents Incorporated by Reference
Portions of the registrant's Definitive Proxy Statement relating to the 2024 Annual Meeting of Stockholders are incorporated by reference in Items 11, 12, 13 and 14 of Part III of this report.