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Allowance for Credit Losses on Premiums Receivable (Notes)
6 Months Ended
Jun. 30, 2023
Premiums Receivable Disclosure [Abstract]  
Premiums Receivable Note [Text Block] Premiums Receivable
The following table provides a roll forward of the allowance for credit losses on our premiums receivable balance for the indicated periods:

Quarter ended June 30,Six Months ended June 30,
($ in thousands)2023202220232022
Balance at beginning of period$17,100 $14,300 $16,100 $13,600 
Current period change for expected credit losses1,515 1,169 3,425 2,085 
Write-offs charged against the allowance for credit losses(1,047)(918)(2,211)(1,438)
Recoveries332 349 586 653 
Allowance for credit losses, end of period$17,900 $14,900 $17,900 $14,900 

For a discussion of the methodology used to evaluate our estimate of expected credit losses on premiums receivable, refer to Note 2. "Summary of Significant Accounting Policies" in Item 8. "Financial Statements and Supplementary Data." of our 2022 Annual Report.