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Reserve for Losses and Loss Adjustment Expenses (Tables)
9 Months Ended
Sep. 30, 2023
Insurance [Abstract]  
Schedule of Reserve for Losses and Loss Adjustment Expenses
Activity in the reserve for losses and loss adjustment expenses is summarized as follows:
(In thousands)Nine Months Ended September 30, 2023Nine Months Ended September 30, 2022Year Ended December 31, 2022
Balance, beginning of year$3,471,147 $3,579,940 $3,579,940 
Less reinsurance recoverables on unpaid losses and loss adjustment expenses431,889 451,741 451,741 
Net balance, beginning of year3,039,258 3,128,199 3,128,199 
Net losses:
Current year(1)
596,872 616,694 813,515 
(Favorable) unfavorable development of reserves established in prior years, net(2)
8,373 (31,528)(36,753)
Total605,245 585,166 776,762 
Paid related to:
Current year(67,894)(77,854)(108,139)
Prior years(598,281)(557,066)(757,564)
Total paid(666,175)(634,920)(865,703)
Net balance, end of period2,978,328 3,078,445 3,039,258 
Plus reinsurance recoverables on unpaid losses and loss adjustment expenses417,323 466,483 431,889 
Balance, end of period$3,395,651 $3,544,928 $3,471,147 
(1) Current year net losses for both the nine months ended September 30, 2022 and year ended December 31, 2022 included $4.9 million of purchase accounting amortization of the negative VOBA associated with NORCAL's assumed unearned premium, which was amortized over a period in proportion to the earn-out of the associated premium as a reduction to current accident year net losses (see Note 2 of the Notes to Consolidated Financial Statements in ProAssurance's December 31, 2022 report on Form 10-K). As of June 30, 2022, the negative VOBA was fully amortized.
(2) Net prior year reserve development recognized for the nine months ended September 30, 2023 and 2022 as well as the year ended December 31, 2022 included $6.7 million, $8.3 million and $10.8 million, respectively, of amortization of the purchase accounting fair value adjustment on NORCAL's assumed net reserve and amortization of the negative VOBA associated with NORCAL's DDR reserve which is recorded as a reduction to prior accident year net losses and loss adjustment expenses (see Note 2 of the Notes to Consolidated Financial Statements in ProAssurance's December 31, 2022 report on Form 10-K).