Annual report pursuant to Section 13 and 15(d)

Insurance Loss Reserves and Loss and Loss Adjustment Expenses - Losses incurred and loss reserve liability (Details)

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Insurance Loss Reserves and Loss and Loss Adjustment Expenses - Losses incurred and loss reserve liability (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Loss And Loss Adjustment Liability And Expenses [Abstract]      
Balance at beginning of year $ 4,436 $ 3,754 $ 3,256
Losses incurred, related to:      
Current year 8,387 3,117 3,019
Prior years (569) (249) (649)
Total incurred 7,818 2,868 2,370
Losses paid, related to:      
Current year (2,012) (219) (414)
Prior years (2,156) (1,967) (1,458)
Total paid (4,168) (2,186) (1,872)
Balance at end of year $ 8,086 $ 4,436 $ 3,754