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Allowance for Credit Losses on Premiums Receivable (Notes)
9 Months Ended
Sep. 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 September 30,Nine Months ended September 30,
($ in thousands)2023202220232022
Balance at beginning of period$17,900 $14,900 $16,100 $13,600 
Current period change for expected credit losses1,973 2,250 5,398 4,335 
Write-offs charged against the allowance for credit losses(1,257)(2,349)(3,468)(3,787)
Recoveries284 399 870 1,052 
Allowance for credit losses, end of period$18,900 $15,200 $18,900 $15,200 

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.