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Unpaid Loss and Loss Adjustment Expense (Tables)
3 Months Ended
Mar. 31, 2022
Insurance [Abstract]  
Activity in the liability for unpaid loss and LAE
The following table presents the activity in the liability for unpaid loss and loss adjustment expense ("LAE") for the three months ended March 31, 2022 and 2021 ($ in millions):
Three Months Ended March 31,
20222021
Unpaid loss and LAE at beginning of period$97.9 $46.3 
Less: Reinsurance recoverable at beginning of period (1)
72.7 36.3 
Net unpaid loss and LAE at beginning of period25.2 10.0 
Add: Incurred loss and LAE, net of reinsurance, related to:
Current year24.8 16.7 
Prior years(0.4)(0.2)
Total incurred24.4 16.5 
Deduct: Paid loss and LAE, net of reinsurance, related to:
Current year10.6 8.3 
Prior years10.8 3.9 
Total paid21.4 12.2 
Unpaid loss and LAE, net of reinsurance recoverable, at end of period28.2 14.3 
Reinsurance recoverable at end of period (1)
79.4 47.9 
Unpaid loss and LAE, gross of reinsurance recoverable, at end of period$107.6 $62.2 
(1)    Reinsurance recoverable in this table includes only ceded unpaid loss and LAE