v3.26.1
Loss and Loss Adjustment Expense Reserves (Tables)
3 Months Ended
Mar. 31, 2026
Insurance [Abstract]  
Summary of loss and LAE reserve activity
The following table summarizes the loss and loss adjustment expense (“LAE”) reserve activity of the Ark/WM Outrigger segment for the three months ended March 31, 2026 and 2025:
Three Months Ended March 31,
Millions20262025
Gross beginning balance$2,481.0 $2,127.5 
Less: beginning reinsurance recoverable on unpaid losses(508.3)(434.4)
Net loss and LAE reserves1,972.7 1,693.1 
Loss and LAE incurred relating to:
Current year losses225.0 286.3 
Prior year losses(18.3)(52.8)
Net incurred loss and LAE206.7 233.5 
Loss and LAE paid relating to:
Current year losses(10.4)(83.2)
Prior year losses(108.5)(75.8)
Net paid loss and LAE(118.9)(159.0)
Foreign currency translation and other adjustments to loss and LAE reserves
(3.5)5.7 
Net ending balance2,057.0 1,773.3 
Plus: ending reinsurance recoverable on unpaid losses528.6 480.6 
Gross ending balance$2,585.6 $2,253.9