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General General (Tables)
9 Months Ended
Sep. 30, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Effects of Reinsurance
The effect of reinsurance on property and casualty premiums written and earned was as follows:

Three Months Ended September 30,Nine Months Ended September 30,
2022202120222021
 (Amounts in thousands)
Premiums Written
Direct $1,049,088 $1,024,753 $3,086,222 $2,934,777 
Ceded(22,805)(17,322)(57,776)(48,750)
Assumed138 161 10,582 13,048 
     Net$1,026,421 $1,007,592 $3,039,028 $2,899,075 
Premiums Earned
Direct$1,009,829 $947,458 $2,974,651 $2,800,357 
Ceded(22,825)(17,175)(57,383)(48,335)
Assumed2,684 3,322 8,142 9,912 
     Net$989,688 $933,605 $2,925,410 $2,761,934 
Allowance for Credit Losses on Premium Receivable
The following table presents a summary of changes in allowance for credit losses on premiums receivable:
 Three Months Ended September 30,Nine Months Ended September 30,
 2022202120222021
 (Amounts in thousands)
Beginning balance$6,000 $6,000 $6,000 $10,000 
     Provision during the period for expected credit losses 1,153 694 3,330 (1,837)
Write-off amounts during the period(1,311)(838)(3,798)(2,610)
Recoveries during the period of amounts previously written off 158 144 468 447 
Ending balance $6,000 $6,000 $6,000 $6,000