XML 50 R1.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
Document And Entity Information - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2019
Feb. 01, 2020
Jun. 30, 2019
Cover [Abstract]      
Document Type 10-K    
Document Annual Report true    
Document Period End Date Dec. 31, 2019    
Document Fiscal Year Focus 2019    
Document Transition Report false    
Entity File Number 1-15731    
Entity Registrant Name EVEREST RE GROUP, LTD.    
Entity Incorporation State Country Code D0    
Entity Tax Identification Number 98-0365432    
Entity Address Address Line 1 Seon Place – 4    
Entity Address Address Line 2 141 Front Street    
Entity Address Address Line 3 PO Box HM 845    
Entity Address City Or Town Hamilton    
Entity Address Postal Zip Code HM 19    
Entity Address Country BM    
City Area Code 441    
Local Phone Number 295-0006    
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    
Entity Shell Company false    
Entity Public Float     $ 10,070,237
Security 12b Title Common Shares, $0.01 par value    
Trading Symbol RE    
Security Exchange Name NYSE    
Entity Common Stock, Shares Outstanding   40,813,432  
Amendment Flag false    
Entity Central Index Key 0001095073    
Document Fiscal Period Focus FY    
Current Fiscal Year End Date --12-31