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Loss and Loss Adjustment Expense Reserves (Tables)
3 Months Ended
Mar. 31, 2021
Insurance Loss Reserves [Abstract]  
Schedule of Liability for Unpaid Claims and Claims Adjustment Expense
The following table summarizes the loss and LAE reserve activities of Ark’s insurance and reinsurance subsidiaries for the three months ended March 31, 2021:

MillionsThree Months Ended March 31, 2021
Gross beginning balance as of January 1, 2021$696.0 
Less: beginning reinsurance recoverable on unpaid losses(433.4)
Net loss and LAE reserves262.6 
Loss and LAE incurred relating to:
Current year losses65.5 
Prior year losses.5 
Total incurred losses and LAE66.0 
Foreign currency translation adjustment to loss and LAE reserves.7 
Loss and LAE paid relating to:
Current year losses(5.2)
Prior year losses(19.7)
Total loss and LAE payments(24.9)
Net ending balance304.4 
Plus: ending reinsurance recoverable on unpaid losses447.5 
Gross ending balance as of March 31, 2021$751.9