XML 12 R1.htm IDEA: XBRL DOCUMENT v3.23.1
Cover - shares
 3 Months Ended
Mar. 31, 2023
May 01, 2023
Cover [Abstract]    
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Mar. 31, 2023  
Document Transition Report false  
Entity File Number 1-15731  
Entity Registrant Name EVEREST RE GROUP, LTD.  
Entity Incorporation, State or Country Code D0  
Entity Tax Identification Number 98-0365432  
Entity Address, Address Line One Seon Place – 4th Floor  
Entity Address, Address Line Two 141 Front Street  
Entity Address, Address Line Three PO Box HM 845  
Entity Address, City or Town Hamilton  
Entity Address, Country BM  
Entity Address, Postal Zip Code HM 19  
City Area Code 441  
Local Phone Number 295-0006  
Title of 12(b) Security Common Shares, $0.01 par value  
Trading Symbol RE  
Security Exchange Name NYSE  
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  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   39,275,224
Entity Central Index Key 0001095073  
Current Fiscal Year End Date --12-31  
Document Fiscal Period Focus Q1  
Document Fiscal Year Focus 2023  
Amendment Flag false