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Unpaid Loss and Loss Adjustment Expense (Tables)
3 Months Ended
Mar. 31, 2023
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, 2023 and 2022 ($ in millions):
Three Months Ended March 31,
20232022
Unpaid loss and LAE at beginning of period$256.2 $97.9 
Less: Reinsurance recoverable at beginning of period (1)
124.6 72.7 
Net unpaid loss and LAE at beginning of period131.6 25.2 
Add: Incurred loss and LAE, net of reinsurance, related to:
Current year57.9 24.8 
Prior years5.7 (0.4)
Total incurred63.6 24.4 
Deduct: Paid loss and LAE, net of reinsurance, related to:
Current year26.9 10.6 
Prior years39.5 10.8 
Total paid66.4 21.4 
Unpaid loss and LAE, net of reinsurance recoverable, at end of period128.8 28.2 
Reinsurance recoverable at end of period (1)
116.4 79.4 
Unpaid loss and LAE, gross of reinsurance recoverable, at end of period$245.2 $107.6 
(1)    Reinsurance recoverable in this table includes only ceded unpaid loss and LAE