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Retroactive Insurance Contracts | 9 Months Ended
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Sep. 30, 2021
Insurance [Abstract] |
Retroactive Insurance Contracts | Retroactive Insurance ContractsProAssurance offers custom alternative risk solutions which include assumed reinsurance. In the first quarter of 2021, ProAssurance entered into an assumed reinsurance arrangement with a regional hospital group. As the contract included both prospective coverage and retroactive coverage, ProAssurance bifurcated the provisions of the contract and accounted for each component separately. In the first quarter of 2021, ProAssurance recognized total net premiums written of $4.5 million, comprised of $2.2 million of prospective coverage and $2.3 million of retroactive coverage, total net premiums earned of $3.0 million, comprised of $0.7 million of prospective coverage and $2.3 million of retroactive coverage and total net losses and loss adjustment expenses of $2.9 million in the Condensed Consolidated Statements of Income and Comprehensive Income. For additional information regarding ProAssurance's accounting policy for retroactive insurance contracts, see Note 1 of the Notes to Consolidated Financial Statements included in ProAssurance's December 31, 2020 report on Form 10-K.Reserve for Losses and Loss Adjustment Expenses The reserve for losses is established based on estimates of individual claims and actuarially determined estimates of future losses based on ProAssurance’s past loss experience, available industry data and projections as to future claims frequency, severity, inflationary trends and settlement patterns. Estimating the reserve, particularly the reserve appropriate for liability exposures, is a complex process. For a high proportion of the risks insured or reinsured by ProAssurance, claims may be resolved over an extended period of time, often five years or more, and may be subject to litigation. Estimating losses requires ProAssurance to make and revise judgments and assessments regarding multiple uncertainties over an extended period of time. As a result, the reserve estimate may vary considerably from the eventual outcome. The assumptions used in establishing ProAssurance’s reserve are regularly reviewed and updated by management as new data becomes available. Changes to estimates of previously established reserves are included in earnings in the period in which the estimate is changed. ProAssurance believes that the methods it uses to establish reserves are reasonable and appropriate. Each year, ProAssurance uses internal actuaries to review the reserve for losses of each insurance subsidiary. ProAssurance also engages consulting actuaries to review ProAssurance claims data and provide observations regarding cost trends, rate adequacy and ultimate loss costs. The statutory filings of each insurance company with the insurance regulators must be accompanied by a consulting actuary's certification as to their respective reserves. ProAssurance considers the views of the actuaries as well as other factors, such as premium rates, historical paid and incurred loss development trends, and an evaluation of the current loss environment including frequency, severity, expected effect of inflation, general economic and social trends, and the legal and political environment in establishing the amount of its reserve for losses. The Company expects there will be impacts to these factors as well as to the timing of loss emergence and ultimate loss ratios for certain coverages it underwrites as a result of COVID-19 and the related economic shutdown; however, the extent to which COVID-19 impacts these factors is highly uncertain and cannot be predicted (see "Item 1A, Risk Factors" and Note 8 of the Notes to Consolidated Financial Statements in ProAssurance's December 31, 2020 report on Form 10-K for additional information). The industry is experiencing new conditions, including the postponement of court cases, changes in settlement trends and a significant reduction in economic activity and insured exposure in some classes. ProAssurance's booked reserves as of September 30, 2021 include consideration of these factors, but the duration and degree to which these issues persist, along with potential legislative, regulatory or judicial actions, could result in significant changes to the Company's reserve estimates in future periods. ProAssurance partitions its reserve by accident year, which is the year in which the claim becomes its liability. For claims-made policies, the insured event generally becomes a liability when the event is first reported to the Company. For occurrence policies, the insured event becomes a liability when the event takes place. For retroactive coverages, the insured event becomes a liability at inception of the underlying contract. As claims are incurred (reported) and claim payments are made, they are aggregated by accident year for analysis purposes. ProAssurance also partitions its reserve by reserve type: case reserves and IBNR reserves. Case reserves are established by the claims department based upon the particular circumstances of each reported claim and represent ProAssurance’s estimate of the future loss costs (often referred to as expected losses) that will be paid on reported claims. Case reserves are decremented as claim payments are made and are periodically adjusted upward or downward as estimates regarding the amount of future losses are revised; a reported loss for an individual claim equates to the case reserve at any point in time plus the claim payments that have been made to date. IBNR reserves represent an estimate, in the aggregate, of future development on losses that have been reported to ProAssurance plus an estimate of losses that have been incurred but not reported. Acquired Reserve The acquisition of NORCAL increased ProAssurance's net reserves by $1.1 billion which represented the fair value of NORCAL's reserve, net of related reinsurance recoverables, at the time of acquisition including a fair value adjustment on the reserve as well as negative VOBA recorded on NORCAL's unearned premium and DDR reserve. The reserve fair value adjustment will be amortized utilizing loss payment patterns and the negative VOBAs will be amortized over a period in proportion to the earn-out of the premium or in-line with the approximate consumption of losses. Such amortization is recorded as a reduction to net losses and loss adjustment expenses. See Note 2 for more information. Development of Prior Accident Years In addition to setting the initial reserve for the current accident year, each period ProAssurance reassesses the amount of reserve required for prior accident years. The foundation of ProAssurance’s reserve re-estimation process is an actuarial analysis that is performed by both the internal and consulting actuaries. This detailed analysis projects ultimate losses based on partitions which include line of business, geography, coverage layer and accident year. The procedure uses the most representative data for each partition, capturing its unique patterns of development and trends. ProAssurance believes that the use of consulting actuaries provides an independent view of the loss data as well as a broader perspective on industry loss trends. Activity in the reserve for losses and loss adjustment expenses is summarized as follows:
(In thousands) | Nine Months Ended September 30, 2021 |  | Nine Months Ended September 30, 2020 |  | Year Ended December 31, 2020 |  |
Balance, beginning of year | $ | 2,417,179 |  |  | $ | 2,346,526 |  |  | $ | 2,346,526 |  |  |
Less reinsurance recoverables on unpaid losses and loss adjustment expenses | 385,087 |  |  | 390,708 |  |  | 390,708 |  |  |
Net balance, beginning of year | 2,032,092 |  |  | 1,955,818 |  |  | 1,955,818 |  |  |
Net reserves acquired from NORCAL acquisition | 1,089,103 |  |  | — |  |  | — |  |  |
Net losses: |  |  |  |  |  |  |
Current year(1)(2)(3) | 582,235 |  |  | 555,969 |  |  | 711,846 |  |  |
Favorable development of reserves established in prior years, net | (27,205) |  |  | (34,557) |  |  | (50,399) |  |  |
Total | 555,030 |  |  | 521,412 |  |  | 661,447 |  |  |
Paid related to: |  |  |  |  |  |  |
Current year | (62,276) |  |  | (60,449) |  |  | (83,204) |  |  |
Prior years | (457,578) |  |  | (400,930) |  |  | (501,969) |  |  |
Total paid | (519,854) |  |  | (461,379) |  |  | (585,173) |  |  |
Net balance, end of period | 3,156,371 |  |  | 2,015,851 |  |  | 2,032,092 |  |  |
Plus reinsurance recoverables on unpaid losses and loss adjustment expenses | 476,315 |  |  | 391,637 |  |  | 385,087 |  |  |
Balance, end of period | $ | 3,632,686 |  |  | $ | 2,407,488 |  |  | $ | 2,417,179 |  |  |
(1) Current year net losses for the nine months ended September 30, 2021 included $4.3 million of amortization of the negative VOBA associated with NORCAL's assumed unearned premium, which is being 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). Additionally, current year net losses for the nine months ended September 30, 2021 included $5.1 million related to a Custom Physician tail policy in the Specialty P&C segment. (2) Current year net losses for the nine months ended September 30, 2021 included incurred losses of $2.9 million related to an assumed reinsurance arrangement entered into during the first quarter of 2021 in the Specialty P&C segment (see Note 5). (3) Current year net losses for the nine months ended September 30, 2020 and the year ended December 31, 2020 included the impact of a large national healthcare account in the Specialty P&C segment including losses of $60.0 million associated with a tail policy and $9.2 million of amortization of a related PDR. For additional information, see Note 7 of the Notes to Consolidated Financial Statements included in ProAssurance's December 31, 2020 report on Form 10-K. Estimating liability reserves is complex and requires the use of many assumptions. As time passes and ultimate losses for prior years are either known or become subject to a more precise estimation, ProAssurance increases or decreases the reserve estimates established in prior periods. The consolidated net favorable loss development recognized in the nine months ended September 30, 2021 primarily reflected a lower than anticipated claims severity trend (i.e., the average size of a claim) in the Specialty P&C segment, primarily related to the 2017 through 2020 accident years. The net favorable development recognized in the Specialty P&C segment also included $5.0 million related to the 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). ProAssurance did not recognize any development related to NORCAL's prior accident year reserves since the date of acquisition. Net favorable prior accident year reserve development recognized in the Specialty P&C segment also included a $1.0 million reduction in our IBNR reserve for COVID-19. The net favorable development also reflected overall favorable trends in claim closing patterns in the Workers' Compensation Insurance and Segregated Portfolio Cell Reinsurance segments. The net favorable loss development recognized in the Workers' Compensation Insurance segment is primarily related to the 2017 accident year and prior and, to a lesser extent, the 2019 accident year. The net favorable loss development recognized in the Segregated Portfolio Cell Reinsurance segment is primarily related to the 2019 accident year and prior and, to a lesser extent, the 2020 accident year. Consolidated net favorable loss development recognized in the nine months ended September 30, 2021 was partially offset by unfavorable reserve development recognized in the Lloyd's Syndicates segment driven by certain catastrophe related losses. The net favorable loss development recognized during the nine months ended September 30, 2020 primarily reflected a lower than anticipated claims severity trend (i.e., the average size of a claim) in the Specialty P&C segment, primarily related to the 2014 through 2018 accident years. The net favorable development also reflected overall favorable trends in claim closing patterns in the Segregated Portfolio Cell Reinsurance and Workers' Compensation Insurance segments. The net favorable loss development recognized in the Segregated Portfolio Cell Reinsurance segment primarily related to the 2016 through 2018 accident years and the net favorable loss development recognized in the Workers' Compensation Insurance segment primarily related to the 2013 through 2016 accident years and accident years prior to 2010. The net favorable loss development recognized for the year ended December 31, 2020 primarily reflected a lower than anticipated claims severity trend (i.e., the average size of a claim) in the Specialty P&C segment, primarily related to the 2014 through 2017 accident years. The net favorable development also reflected overall favorable trends in claim closing patterns in the Segregated Portfolio Cell Reinsurance and Workers' Compensation Insurance segments. The net favorable loss development recognized in the Segregated Portfolio Cell Reinsurance segment primarily related to the 2014 through 2019 accident years and the net favorable loss development recognized in the Workers' Compensation Insurance segment primarily related to the 2014 through 2017 accident years. For additional information regarding ProAssurance's reserve for losses, see Note 1 and Note 8 of the Notes to Consolidated Financial Statements included in ProAssurance's December 31, 2020 report on Form 10-K.

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