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Pay vs Performance Disclosure (Tabular List)
12 Months Ended
Dec. 31, 2022
Measure [Axis]: 1  
Pay vs Performance Disclosure [Line Items]  
Measure Name Adjusted Operating ROE
Measure [Axis]: 2  
Pay vs Performance Disclosure [Line Items]  
Measure Name Combined Ratio
Measure [Axis]: 3  
Pay vs Performance Disclosure [Line Items]  
Measure Name Operating Expense Ratio
Measure [Axis]: 4  
Pay vs Performance Disclosure [Line Items]  
Measure Name Total Shareholder Return (as defined at Everest’s Investor Day23)
Measure [Axis]: 5  
Pay vs Performance Disclosure [Line Items]  
Measure Name Gross Written Premium Annual Growth Rate