v3.26.1
Income Taxes - New Income Tax Reconciliation (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Amount      
Income tax benefit at statutory tax rate $ 66,600 $ 0 $ 0
Prior year adjustments   (5,900) 6,900
Statutory tax rate differential   88,100 56,300
Effective Income Tax Rate Reconciliation, Other Adjustments, Amount   (900) (300)
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount   (106,600) 4,000
Effect of changes in tax laws or rates enacted in the period (10,200)    
Tax credits (800)    
Nontaxable or nondeductible items 3,500    
Other adjustments - prior year adjustments $ (5,700)    
Other adjustments - prior year adjustments percent (1.30%)    
Total tax expense/(benefit) $ 103,900 $ (22,000) $ (132,100)
Percentage      
Income tax benefit at statutory tax rate 15.00%    
Effect of changes in tax laws or rates enacted in the period (2.30%)    
Tax credits (0.20%)    
Nontaxable or nondeductible items 0.80%    
Effective tax rate 23.40%    
Bermuda      
Percentage      
Effective tax rate 15.00%    
United Kingdom:      
Amount      
Prior year adjustments $ 13,700    
Prior year adjustments 3.10%    
Other adjustments $ 10,200    
Statutory tax rate differential 16,800    
Effective Income Tax Rate Reconciliation, Other Adjustments, Amount 500    
Tax credits $ (10,300)    
Percentage      
Statutory tax rate differential 3.80%    
Other adjustments 2.30%    
Tax credits (2.30%)    
Prior year adjustments 0.10%    
United States:      
Amount      
Statutory tax rate differential $ 27,400    
Effective Income Tax Rate Reconciliation, Other Adjustments, Amount 1,300    
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount $ (5,700)    
Percentage      
Statutory tax rate differential 6.20%    
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Percent (1.30%)    
Prior year adjustments 0.30%    
Switzerland:      
Amount      
Statutory tax rate differential $ 4,400    
Effective Income Tax Rate Reconciliation, Other Adjustments, Amount (1,400)    
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount $ (6,000)    
Percentage      
Statutory tax rate differential 1.00%    
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Percent (1.40%)    
Prior year adjustments (0.30%)    
Other foreign jurisdictions      
Amount      
Statutory tax rate differential $ (400)    
Percentage      
Statutory tax rate differential (0.10%)