XML 69 R58.htm IDEA: XBRL DOCUMENT v3.24.1.u1
VARIABLE INTEREST ENTITIES (Details)
3 Months Ended
Jan. 10, 2023
USD ($)
note
Mar. 31, 2024
USD ($)
account
Mar. 31, 2023
USD ($)
Dec. 31, 2023
USD ($)
Dec. 31, 2022
USD ($)
Variable Interest Entity [Line Items]          
Number of segregated accounts | account   4      
Assets   $ 50,944,334,000   $ 49,007,105,000  
Liabilities   34,853,566,000   33,451,316,000  
Investments in other ventures, under equity method   99,684,000   112,624,000  
Redeemable noncontrolling interests   6,297,983,000   6,100,831,000  
Ceded premiums written   791,111,000 $ 526,558,000    
Ceded premiums earned   433,030,000 417,138,000    
Vermeer          
Variable Interest Entity [Line Items]          
Redeemable noncontrolling interests   1,433,268,000 1,538,245,000 1,555,297,000 $ 1,490,840,000
Fontana          
Variable Interest Entity [Line Items]          
Redeemable noncontrolling interests   451,397,000 276,859,000 353,823,000 $ 268,031,000
Variable Interest Entity, Primary Beneficiary | Upsilon RFO Re Ltd.          
Variable Interest Entity [Line Items]          
Assets   2,100,000,000   2,400,000,000  
Liabilities   2,100,000,000   2,400,000,000  
Net assets   73,200,000   74,200,000  
Variable Interest Entity, Primary Beneficiary | Vermeer          
Variable Interest Entity [Line Items]          
Assets   1,900,000,000   1,700,000,000  
Liabilities   436,000,000   102,700,000  
Redeemable noncontrolling interests   1,400,000,000   1,600,000,000  
Variable Interest Entity, Primary Beneficiary | Fontana          
Variable Interest Entity [Line Items]          
Assets   1,700,000,000   1,500,000,000  
Liabilities   1,100,000,000   1,000,000,000  
Redeemable noncontrolling interests   451,400,000   353,800,000  
Variable Interest Entity, Primary Beneficiary | RenaissanceRe Holdings Ltd. | Upsilon RFO Re Ltd.          
Variable Interest Entity [Line Items]          
Payments of capital distribution   $ 13,000,000 $ 20,700,000    
Variable interest entity, ownership percentage   14.60% 12.60%    
Variable Interest Entity, Primary Beneficiary | Investors Of Upsilon RFO Diversified I, II and III | Upsilon RFO Re Ltd.          
Variable Interest Entity [Line Items]          
Payments of capital distribution   $ 109,300,000 $ 160,100,000    
Net assets   451,300,000   500,000,000  
Variable Interest Entity, Primary Beneficiary | Third Party Investor | Upsilon RFO Re Ltd. | Preference shares          
Variable Interest Entity [Line Items]          
Contributions to subsidiaries     0    
Variable Interest Entity, Not Primary Beneficiary | Upsilon Diversified          
Variable Interest Entity [Line Items]          
Investments in other ventures, under equity method   700,000   800,000  
Variable Interest Entity, Not Primary Beneficiary | NOC1          
Variable Interest Entity [Line Items]          
Investments in other ventures, under equity method   2,000,000.0   1,700,000  
Variable Interest Entity, Not Primary Beneficiary | AlphaCat Managers Ltd          
Variable Interest Entity [Line Items]          
Investments in other ventures, under equity method   4,900,000   4,400,000  
Variable Interest Entity, Not Primary Beneficiary | Upsilon Diversified          
Variable Interest Entity [Line Items]          
Assets   485,300,000   600,800,000  
Liabilities   36,500,000   108,000,000.0  
Variable Interest Entity, Not Primary Beneficiary | Upsilon Diversified | Upsilon RFO Re Ltd.          
Variable Interest Entity [Line Items]          
Investment owned, fair value   484,300,000   503,100,000  
Variable Interest Entity, Not Primary Beneficiary | NOC1          
Variable Interest Entity [Line Items]          
Assets   201,800,000   196,500,000  
Liabilities   1,500,000   22,800,000  
Variable Interest Entity, Not Primary Beneficiary | Mona Lisa Re          
Variable Interest Entity [Line Items]          
Assets   451,700,000   436,900,000  
Liabilities   451,700,000   436,900,000  
Number of notes issued | note 2        
Variable Interest Entity, Not Primary Beneficiary | Mona Lisa Re | Term loans          
Variable Interest Entity [Line Items]          
Investment in participating notes   1,100,000   2,200,000  
Variable Interest Entity, Not Primary Beneficiary | Mona Lisa Re | Eighty Five Million Principal At Risk Variable Rate Note          
Variable Interest Entity [Line Items]          
Face amount $ 85,000,000        
Variable Interest Entity, Not Primary Beneficiary | Mona Lisa Re | One Hundred Million Principal At Risk Variable Rate Note          
Variable Interest Entity [Line Items]          
Face amount $ 100,000,000        
Variable Interest Entity, Not Primary Beneficiary | Tailwind Re Ltd          
Variable Interest Entity [Line Items]          
Assets   416,700,000   417,100,000  
Liabilities   416,700,000   417,100,000  
Variable Interest Entity, Not Primary Beneficiary | Tailwind Re Ltd | Term loans          
Variable Interest Entity [Line Items]          
Investment in participating notes   0   800,000  
Variable Interest Entity, Not Primary Beneficiary | AlphaCat Managers Ltd          
Variable Interest Entity [Line Items]          
Assets   4,700,000,000   5,000,000,000  
Liabilities   2,100,000,000   2,400,000,000  
Variable Interest Entity, Not Primary Beneficiary | Investors Of Upsilon RFO Diversified IV | Upsilon RFO Re Ltd.          
Variable Interest Entity [Line Items]          
Net assets   79,300,000   $ 88,300,000  
Variable Interest Entity, Not Primary Beneficiary | Third Party Investor | Upsilon Diversified          
Variable Interest Entity [Line Items]          
Payments of capital distribution   90,000,000.0 134,700,000    
Variable Interest Entity, Not Primary Beneficiary | Third Party Investor | Upsilon Diversified | Preference shares          
Variable Interest Entity [Line Items]          
Contributions to subsidiaries     0    
Variable Interest Entity, Not Primary Beneficiary | Third Party Investor | NOC1 | Preference shares          
Variable Interest Entity [Line Items]          
Contributions to subsidiaries   20,000,000.0      
Variable Interest Entity, Not Primary Beneficiary | Renaissance Reinsurance Ltd. | Mona Lisa Re          
Variable Interest Entity [Line Items]          
Ceded premiums written   18,900,000 18,300,000    
Ceded premiums earned   8,300,000 7,700,000    
Variable Interest Entity, Not Primary Beneficiary | DaVinci Reinsurance Ltd. | Mona Lisa Re          
Variable Interest Entity [Line Items]          
Ceded premiums written   4,700,000 4,600,000    
Ceded premiums earned   2,100,000 $ 2,000,000    
Variable Interest Entity, Not Primary Beneficiary | Validus Acquisition | Tailwind Re Ltd          
Variable Interest Entity [Line Items]          
Ceded premiums written   42,700,000      
Ceded premiums earned   $ 10,600,000