Unpaid Claims (Tables)
 9 Months Ended 12 Months Ended
Sep. 30, 2021
Dec. 31, 2020
Liability for Unpaid Claims and Claims Adjustment Expense, Activity in Liability [Abstract]    
Schedule of Activity in the Liability for Unpaid Claims and Claims Adjustment Expense
Activity in the liability for unpaid claims, including claims adjustment expenses, for the nine months ended September 30, 2021 and 2020, is summarized as follows:
Nine Months Ended September 30,20212020
(in thousands)
Gross and net balance, beginning of period
$103,976 $77,886 
Incurred related to:
Current year1,092,280 425,941 
Prior years17,095 (15,401)
Total incurred
1,109,375 410,540 
Paid related to:
Current year963,779 339,252 
Prior years109,362 55,559 
Total paid
1,073,141 394,811 
Gross and net balance, end of period
$140,210 $93,615 
Activity in the liability for unpaid claims, including claims adjustment expenses, is summarized as follows:
Year ended December 31, 20202019
(in thousands)
Gross balance, beginning of year
$77,886 $54,004 
Less: reinsurance recoverable, beginning of year
— (12,344)
Net balance, beginning of year
77,886 41,660 
Incurred related to:
Current year
604,183 453,423 
Prior years
(13,715)(2,778)
Total incurred
590,468 450,645 
Paid related to:
Current year
501,339 376,677 
Prior years
63,039 37,742 
Total paid
564,378 414,419 
Net balance, end of year
103,976 77,886 
Plus: reinsurance recoverable, end of year
— — 
Gross balance, end of year
$103,976 $77,886