$PRA
PROASSURANCE CORP Stock $pra

$pra Overview Financials Valuation SEC Filings Company Website

2021 Q2 Form 10-Q Financial Statement

#000187524621000003 Filed on August 09, 2021

Income Statement

Concept	2021 Q2	2020 Q2	2020 Q1
Revenue	$281.6M	$221.7M	$196.7M
YoY Change	27.01%	-7.46%	-26.84%
Cost Of Revenue	$181.9M	$211.0M	$164.8M
YoY Change	-13.81%	25.27%	3.18%
Gross Profit	$99.78M	$10.74M	$31.87M
YoY Change	828.75%	-84.91%	-70.79%
Gross Profit Margin	35.43%	4.84%	16.2%
Selling, General & Admin	$1.214M	$900.0K	$1.600M
YoY Change	34.89%	-18.18%	100.0%
% of Gross Profit	1.22%	8.38%	5.02%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$26.65M	$5.085M	$4.734M
YoY Change	424.01%	10.14%	-6.0%
% of Gross Profit	26.71%	47.33%	14.85%
Operating Expenses	$259.5M	$33.35M	$34.77M
YoY Change	678.27%	-3.79%	4.45%
Operating Profit	-$159.8M	-$22.61M	-$2.904M
YoY Change	606.75%	-161.9%	-103.83%
Interest Expense	$5.176M	$3.714M	$4.129M
YoY Change	39.36%	-12.55%	-4.64%
% of Operating Profit
Other Income/Expense, Net
YoY Change
Pretax Income	$88.45M	-$56.79M	-$34.03M
YoY Change	-255.77%	-604.35%	-188.14%
Income Tax	-$3.598M	-$38.69M	-$12.08M
% Of Pretax Income	-4.07%
Net Earnings	$92.05M	-$18.10M	-$21.95M
YoY Change	-608.59%	-256.89%	-169.36%
Net Earnings / Revenue	32.68%	-8.16%	-11.16%
Basic Earnings Per Share	$1.71	-$0.34	-$0.41
Diluted Earnings Per Share	$1.70	-$0.34	-$0.41
COMMON SHARES
Basic Shares Outstanding	53.97M shares	53.86M shares	53.81M shares
Diluted Shares Outstanding	54.05M shares	53.89M shares	53.89M shares

Balance Sheet

Concept	2021 Q2	2020 Q2	2020 Q1
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents	$160.8M	$224.3M	$217.2M
Short-Term Investments
Other Short-Term Assets
YoY Change
Inventory
Prepaid Expenses
Receivables
Other Receivables
Total Short-Term Assets
YoY Change
LONG-TERM ASSETS
Property, Plant & Equipment	$30.72M	$30.21M	$31.12M
YoY Change	1.71%	-2.06%	1.41%
Goodwill	$49.61M	$210.7M	$210.7M
YoY Change	-76.46%	0.0%	0.0%
Intangibles
YoY Change
Long-Term Investments	$4.872B	$3.298B	$3.241B
YoY Change	47.74%	-4.89%	-5.08%
Other Assets	$110.8M	$52.60M	$66.70M
YoY Change	110.62%	365.49%	324.84%
Total Long-Term Assets
YoY Change
TOTAL ASSETS
Total Short-Term Assets
Total Long-Term Assets
Total Assets	$6.358B	$4.784B	$4.731B
YoY Change	32.92%	-0.05%	0.29%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable
YoY Change
Accrued Expenses	$23.50M	$20.60M	$21.30M
YoY Change	14.07%	-2.37%	18.33%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$23.50M	$20.60M	$21.30M
YoY Change	14.07%	-2.37%	18.33%
LONG-TERM LIABILITIES
Long-Term Debt	$458.9M	$285.3M	$285.5M
YoY Change	60.84%	-0.66%	-0.7%
Other Long-Term Liabilities	$286.1M	$178.9M	$169.8M
YoY Change	59.93%	-12.26%	-4.82%
Total Long-Term Liabilities	$745.0M	$464.2M	$455.3M
YoY Change	60.49%	-5.48%	-2.28%
TOTAL LIABILITIES
Total Short-Term Liabilities	$23.50M	$20.60M	$21.30M
Total Long-Term Liabilities	$745.0M	$464.2M	$455.3M
Total Liabilities	$4.934B	$3.309B	$3.303B
YoY Change	49.11%	3.26%	4.69%
SHAREHOLDERS EQUITY
Retained Earnings	$1.396B	$1.442B	$1.463B
YoY Change	-3.24%	-8.79%	-7.78%
Common Stock	$391.4M	$387.0M	$385.4M
YoY Change	1.13%	0.3%	0.32%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$416.0M	$416.0M	$416.0M
YoY Change	0.0%	-0.32%	-0.32%
Treasury Stock Shares	9.325M shares	9.325M shares	9.325M shares
Shareholders Equity	$1.424B	$1.474B	$1.428B
YoY Change
Total Liabilities & Shareholders Equity	$6.358B	$4.784B	$4.731B
YoY Change	32.92%	-0.05%	0.29%

Cashflow Statement

Concept	2021 Q2	2020 Q2	2020 Q1
OPERATING ACTIVITIES
Net Income	$92.05M	-$18.10M	-$21.95M
YoY Change	-608.59%	-256.89%	-169.36%
Depreciation, Depletion And Amortization	$26.65M	$5.085M	$4.734M
YoY Change	424.01%	10.14%	-6.0%
Cash From Operating Activities	$2.315M	$14.50M	-$12.05M
YoY Change	-84.03%	-67.49%	-135.03%
INVESTING ACTIVITIES
Capital Expenditures	$0.00	-$1.200M
YoY Change	-100.0%
Acquisitions
YoY Change
Other Investing Activities	-$44.63M	$10.90M	$2.206M
YoY Change	-509.44%	-265.15%	811.57%
Cash From Investing Activities	-$44.63M	$9.700M	$71.83M
YoY Change	-560.09%	-246.97%	1756.9%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-11.67M	-17.10M	-$17.98M
YoY Change	-31.74%	-5.0%	-61.67%
NET CHANGE
Cash From Operating Activities	2.315M	14.50M	-$12.05M
Cash From Investing Activities	-44.63M	9.700M	$71.83M
Cash From Financing Activities	-11.67M	-17.10M	-$17.98M
Net Change In Cash	-53.99M	7.100M	$41.80M
YoY Change	-860.37%	-64.5%	-583.74%
FREE CASH FLOW
Cash From Operating Activities	$2.315M	$14.50M	-$12.05M
Capital Expenditures	$0.00	-$1.200M
Free Cash Flow	$2.315M	$15.70M
YoY Change	-85.25%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
	dei	Entity Central Index Key EntityCentralIndexKey	0001127703
	dei	Amendment Flag AmendmentFlag	false
	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2021
	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q2
	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2019	us-gaap	Accounting Standards Update Extensible List AccountingStandardsUpdateExtensibleList	http://fasb.org/us-gaap/2021-01-31#AccountingStandardsUpdate201613Member
	dei	Document Type DocumentType	10-Q
	dei	Document Quarterly Report DocumentQuarterlyReport	true
	dei	Document Period End Date DocumentPeriodEndDate	2021-06-30
	dei	Document Transition Report DocumentTransitionReport	false
	dei	Entity File Number EntityFileNumber	0-16533
	dei	Entity Registrant Name EntityRegistrantName	ProAssurance Corporation
	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	63-1261433
	dei	Entity Address Address Line1 EntityAddressAddressLine1	100 Brookwood Place,
	dei	Entity Address City Or Town EntityAddressCityOrTown	Birmingham,
	dei	Entity Address State Or Province EntityAddressStateOrProvince	AL
	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	35209
	dei	City Area Code CityAreaCode	(205)
	dei	Local Phone Number LocalPhoneNumber	877-4400
	dei	Security12b Title Security12bTitle	Common Stock, par value $0.01 per share
	dei	Trading Symbol TradingSymbol	PRA
	dei	Security Exchange Name SecurityExchangeName	NYSE
	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
	dei	Entity Small Business EntitySmallBusiness	false
	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
	dei	Entity Shell Company EntityShellCompany	false
CY2021Q3	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	53981836	shares
CY2021Q2	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	3666295000	USD
CY2020Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	2361575000	USD
CY2021Q2	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss DebtSecuritiesAvailableForSaleAllowanceForCreditLoss	0	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss DebtSecuritiesAvailableForSaleAllowanceForCreditLoss	552000	USD
CY2021Q2	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	3734655000	USD
CY2020Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	2457531000	USD
CY2021Q2	us-gaap	Trading Securities Debt Amortized Cost TradingSecuritiesDebtAmortizedCost	46167000	USD
CY2020Q4	us-gaap	Trading Securities Debt Amortized Cost TradingSecuritiesDebtAmortizedCost	47907000	USD
CY2021Q2	us-gaap	Trading Securities Debt TradingSecuritiesDebt	45957000	USD
CY2020Q4	us-gaap	Trading Securities Debt TradingSecuritiesDebt	48456000	USD
CY2021Q2	us-gaap	Equity Securities Fv Ni Cost EquitySecuritiesFvNiCost	229055000	USD
CY2020Q4	us-gaap	Equity Securities Fv Ni Cost EquitySecuritiesFvNiCost	113709000	USD
CY2021Q2	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	234211000	USD
CY2020Q4	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	120101000	USD
CY2021Q2	us-gaap	Other Short Term Investments OtherShortTermInvestments	351885000	USD
CY2020Q4	us-gaap	Other Short Term Investments OtherShortTermInvestments	337813000	USD
CY2021Q2	us-gaap	Life Insurance Corporate Or Bank Owned Amount LifeInsuranceCorporateOrBankOwnedAmount	80198000	USD
CY2020Q4	us-gaap	Life Insurance Corporate Or Bank Owned Amount LifeInsuranceCorporateOrBankOwnedAmount	67847000	USD
CY2021Q2	pra	Investment In Unconsolidated Subsidiaries InvestmentInUnconsolidatedSubsidiaries	314892000	USD
CY2020Q4	pra	Investment In Unconsolidated Subsidiaries InvestmentInUnconsolidatedSubsidiaries	310529000	USD
CY2021Q2	pra	Other Investments Fair Value Disclosure OtherInvestmentsFairValueDisclosure	106895000	USD
CY2020Q4	pra	Other Investments Fair Value Disclosure OtherInvestmentsFairValueDisclosure	44116000	USD
CY2021Q2	us-gaap	Other Long Term Investments OtherLongTermInvestments	110052000	USD
CY2020Q4	us-gaap	Other Long Term Investments OtherLongTermInvestments	47068000	USD
CY2021Q2	us-gaap	Investments Investments	4871850000	USD
CY2020Q4	us-gaap	Investments Investments	3389345000	USD
CY2021Q2	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	160796000	USD
CY2020Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	215782000	USD
CY2021Q2	us-gaap	Premiums Receivable At Carrying Value PremiumsReceivableAtCarryingValue	288589000	USD
CY2020Q4	us-gaap	Premiums Receivable At Carrying Value PremiumsReceivableAtCarryingValue	201395000	USD
CY2021Q2	us-gaap	Reinsurance Recoverables On Paid Losses ReinsuranceRecoverablesOnPaidLosses	16280000	USD
CY2020Q4	us-gaap	Reinsurance Recoverables On Paid Losses ReinsuranceRecoverablesOnPaidLosses	14370000	USD
CY2021Q2	us-gaap	Reinsurance Recoverable For Unpaid Claims And Claims Adjustments ReinsuranceRecoverableForUnpaidClaimsAndClaimsAdjustments	484059000	USD
CY2020Q4	us-gaap	Reinsurance Recoverable For Unpaid Claims And Claims Adjustments ReinsuranceRecoverableForUnpaidClaimsAndClaimsAdjustments	385087000	USD
CY2021Q2	us-gaap	Prepaid Reinsurance Premiums PrepaidReinsurancePremiums	39261000	USD
CY2020Q4	us-gaap	Prepaid Reinsurance Premiums PrepaidReinsurancePremiums	35885000	USD
CY2021Q2	us-gaap	Deferred Policy Acquisition Costs DeferredPolicyAcquisitionCosts	52102000	USD
CY2020Q4	us-gaap	Deferred Policy Acquisition Costs DeferredPolicyAcquisitionCosts	47196000	USD
CY2021Q2	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	110785000	USD
CY2020Q4	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	57105000	USD
CY2021Q2	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	30722000	USD
CY2020Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	30529000	USD
CY2021Q2	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	21670000	USD
CY2020Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	19013000	USD
CY2021Q2	us-gaap	Other Intangible Assets Net OtherIntangibleAssetsNet	76574000	USD
CY2020Q4	us-gaap	Other Intangible Assets Net OtherIntangibleAssetsNet	65720000	USD
CY2021Q2	us-gaap	Goodwill Goodwill	49610000	USD
CY2020Q4	us-gaap	Goodwill Goodwill	49610000	USD
CY2021Q2	us-gaap	Other Assets OtherAssets	155889000	USD
CY2020Q4	us-gaap	Other Assets OtherAssets	143766000	USD
CY2021Q2	us-gaap	Assets Assets	6358187000	USD
CY2020Q4	us-gaap	Assets Assets	4654803000	USD
CY2021Q2	us-gaap	Liability For Claims And Claims Adjustment Expense LiabilityForClaimsAndClaimsAdjustmentExpense	3621831000	USD
CY2020Q4	us-gaap	Liability For Claims And Claims Adjustment Expense LiabilityForClaimsAndClaimsAdjustmentExpense	2417179000	USD
CY2021Q2	us-gaap	Unearned Premiums UnearnedPremiums	498653000	USD
CY2020Q4	us-gaap	Unearned Premiums UnearnedPremiums	361547000	USD
CY2021Q2	us-gaap	Reinsurance Payable ReinsurancePayable	45178000	USD
CY2020Q4	us-gaap	Reinsurance Payable ReinsurancePayable	39998000	USD
CY2021Q2	pra	Policy Liabilities PolicyLiabilities	4165662000	USD
CY2020Q4	pra	Policy Liabilities PolicyLiabilities	2818725000	USD
CY2021Q2	us-gaap	Operating Lease Liability OperatingLeaseLiability	23499000	USD
CY2020Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	20116000	USD
CY2021Q2	us-gaap	Other Liabilities OtherLiabilities	286123000	USD
CY2020Q4	us-gaap	Other Liabilities OtherLiabilities	182039000	USD
CY2021Q2	us-gaap	Long Term Debt LongTermDebt	458863000	USD
CY2020Q4	us-gaap	Long Term Debt LongTermDebt	284713000	USD
CY2021Q2	us-gaap	Liabilities Liabilities	4934147000	USD
CY2020Q4	us-gaap	Liabilities Liabilities	3305593000	USD
CY2020Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2021Q2	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2021Q2	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	100000000	shares
CY2020Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	100000000	shares
CY2021Q2	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	63306684	shares
CY2020Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	63217708	shares
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	us-gaap	Premiums Earned Net PremiumsEarnedNet	411149000	USD
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	us-gaap	Net Investment Income NetInvestmentIncome	32434000	USD
	us-gaap	Net Investment Income NetInvestmentIncome	38954000	USD
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	pra	Other Net Realized Investment Gain Loss OtherNetRealizedInvestmentGainLoss	19682000	USD
	pra	Other Net Realized Investment Gain Loss OtherNetRealizedInvestmentGainLoss	-7180000	USD
CY2021Q2	us-gaap	Gain Loss On Investments GainLossOnInvestments	10833000	USD
CY2020Q2	us-gaap	Gain Loss On Investments GainLossOnInvestments	19985000	USD
	us-gaap	Gain Loss On Investments GainLossOnInvestments	19682000	USD
	us-gaap	Gain Loss On Investments GainLossOnInvestments	-8688000	USD
CY2021Q2	us-gaap	Other Income OtherIncome	2458000	USD
CY2020Q2	us-gaap	Other Income OtherIncome	1695000	USD
	us-gaap	Other Income OtherIncome	4462000	USD
	us-gaap	Other Income OtherIncome	3945000	USD
CY2021Q2	us-gaap	Revenues Revenues	281628000	USD
CY2020Q2	us-gaap	Revenues Revenues	221742000	USD
	us-gaap	Revenues Revenues	501644000	USD
	us-gaap	Revenues Revenues	418443000	USD
CY2021Q2	us-gaap	Policyholder Benefits And Claims Incurred Net PolicyholderBenefitsAndClaimsIncurredNet	181852000	USD
CY2020Q2	us-gaap	Policyholder Benefits And Claims Incurred Net PolicyholderBenefitsAndClaimsIncurredNet	210999000	USD
	us-gaap	Policyholder Benefits And Claims Incurred Net PolicyholderBenefitsAndClaimsIncurredNet	331636000	USD
	us-gaap	Policyholder Benefits And Claims Incurred Net PolicyholderBenefitsAndClaimsIncurredNet	375831000	USD
CY2021Q2	us-gaap	Other Underwriting Expense OtherUnderwritingExpense	50542000	USD
CY2020Q2	us-gaap	Other Underwriting Expense OtherUnderwritingExpense	33349000	USD
	us-gaap	Other Underwriting Expense OtherUnderwritingExpense	82062000	USD
	us-gaap	Other Underwriting Expense OtherUnderwritingExpense	68120000	USD
CY2021Q2	us-gaap	Deferred Policy Acquisition Cost Amortization Expense DeferredPolicyAcquisitionCostAmortizationExpense	26646000	USD
CY2020Q2	us-gaap	Deferred Policy Acquisition Cost Amortization Expense DeferredPolicyAcquisitionCostAmortizationExpense	25343000	USD
	us-gaap	Deferred Policy Acquisition Cost Amortization Expense DeferredPolicyAcquisitionCostAmortizationExpense	51576000	USD
	us-gaap	Deferred Policy Acquisition Cost Amortization Expense DeferredPolicyAcquisitionCostAmortizationExpense	52626000	USD
CY2021Q2	pra	Segregated Portfolio Cells Income Tax Expense Benefit SegregatedPortfolioCellsIncomeTaxExpenseBenefit	504000	USD
CY2020Q2	pra	Segregated Portfolio Cells Income Tax Expense Benefit SegregatedPortfolioCellsIncomeTaxExpenseBenefit	480000	USD
	pra	Segregated Portfolio Cells Income Tax Expense Benefit SegregatedPortfolioCellsIncomeTaxExpenseBenefit	860000	USD
	pra	Segregated Portfolio Cells Income Tax Expense Benefit SegregatedPortfolioCellsIncomeTaxExpenseBenefit	702000	USD
CY2021Q2	pra	Segregated Portfolio Cells Dividend Expense Income SegregatedPortfolioCellsDividendExpenseIncome	2864000	USD
CY2020Q2	pra	Segregated Portfolio Cells Dividend Expense Income SegregatedPortfolioCellsDividendExpenseIncome	4642000	USD
	pra	Segregated Portfolio Cells Dividend Expense Income SegregatedPortfolioCellsDividendExpenseIncome	4606000	USD
	pra	Segregated Portfolio Cells Dividend Expense Income SegregatedPortfolioCellsDividendExpenseIncome	4134000	USD
CY2021Q2	us-gaap	Interest Expense InterestExpense	5176000	USD
CY2021Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	88452000	USD
CY2020Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-56785000	USD
CY2020Q2	us-gaap	Interest Expense InterestExpense	3714000	USD
	us-gaap	Interest Expense InterestExpense	8389000	USD
	us-gaap	Interest Expense InterestExpense	7844000	USD
CY2021Q2	us-gaap	Benefits Losses And Expenses BenefitsLossesAndExpenses	267584000	USD
CY2020Q2	us-gaap	Benefits Losses And Expenses BenefitsLossesAndExpenses	278527000	USD
	us-gaap	Benefits Losses And Expenses BenefitsLossesAndExpenses	479129000	USD
	us-gaap	Benefits Losses And Expenses BenefitsLossesAndExpenses	509257000	USD
CY2021Q2	us-gaap	Business Combination Bargain Purchase Gain Recognized Amount BusinessCombinationBargainPurchaseGainRecognizedAmount	74408000	USD
CY2020Q2	us-gaap	Business Combination Bargain Purchase Gain Recognized Amount BusinessCombinationBargainPurchaseGainRecognizedAmount	0	USD
	us-gaap	Business Combination Bargain Purchase Gain Recognized Amount BusinessCombinationBargainPurchaseGainRecognizedAmount	74408000	USD
	us-gaap	Business Combination Bargain Purchase Gain Recognized Amount BusinessCombinationBargainPurchaseGainRecognizedAmount	0	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	96923000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-90814000	USD
CY2021Q2	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	-4057000	USD
CY2020Q2	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	-36083000	USD
	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	-1049000	USD
	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	-37934000	USD
CY2021Q2	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	459000	USD
CY2020Q2	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-2603000	USD
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-1813000	USD
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-12827000	USD
CY2021Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-3598000	USD
CY2020Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-38686000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-2862000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-50761000	USD
CY2021Q2	us-gaap	Net Income Loss NetIncomeLoss	92050000	USD
CY2020Q2	us-gaap	Net Income Loss NetIncomeLoss	-18099000	USD
	us-gaap	Net Income Loss NetIncomeLoss	99785000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-40053000	USD
CY2021Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	11550000	USD
CY2020Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	66040000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-22155000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	24175000	USD
CY2021Q2	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	103600000	USD
CY2020Q2	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	47941000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	77630000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-15878000	USD
CY2021Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.71
CY2020Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.34
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.85
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.74
CY2021Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.70
CY2020Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.34
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.85
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.74
CY2021Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	53965000	shares
CY2020Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	53864000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	53942000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	53836000	shares
CY2021Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	54048000	shares
CY2020Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	53886000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	54023000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	53886000	shares
CY2021Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.05
CY2020Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.05
	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.10
	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.36
	us-gaap	Net Income Loss NetIncomeLoss	99785000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-40053000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-40053000	USD
	us-gaap	Business Combination Bargain Purchase Gain Recognized Amount BusinessCombinationBargainPurchaseGainRecognizedAmount	74408000	USD
	us-gaap	Business Combination Bargain Purchase Gain Recognized Amount BusinessCombinationBargainPurchaseGainRecognizedAmount	0	USD
	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	16320000	USD
	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	9824000	USD
	us-gaap	Life Insurance Corporate Or Bank Owned Change In Value LifeInsuranceCorporateOrBankOwnedChangeInValue	-230000	USD
	us-gaap	Life Insurance Corporate Or Bank Owned Change In Value LifeInsuranceCorporateOrBankOwnedChangeInValue	913000	USD
	us-gaap	Gain Loss On Investments GainLossOnInvestments	19682000	USD
	us-gaap	Gain Loss On Investments GainLossOnInvestments	-8688000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	2184000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	2032000	USD
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-1813000	USD
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-12827000	USD
	us-gaap	Increase Decrease In Deferred Policy Acquisition Costs IncreaseDecreaseInDeferredPolicyAcquisitionCosts	4906000	USD
	us-gaap	Increase Decrease In Deferred Policy Acquisition Costs IncreaseDecreaseInDeferredPolicyAcquisitionCosts	-3317000	USD
	pra	Equity In Earnings Loss Of Unconsolidated Subsidiaries EquityInEarningsLossOfUnconsolidatedSubsidiaries	18715000	USD
	pra	Equity In Earnings Loss Of Unconsolidated Subsidiaries EquityInEarningsLossOfUnconsolidatedSubsidiaries	-26917000	USD
	pra	Return On Invested Capital From Unconsolidated Subsidiaries ReturnOnInvestedCapitalFromUnconsolidatedSubsidiaries	13355000	USD
	pra	Return On Invested Capital From Unconsolidated Subsidiaries ReturnOnInvestedCapitalFromUnconsolidatedSubsidiaries	27437000	USD
	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-198000	USD
	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-2755000	USD
	us-gaap	Increase Decrease In Premiums Receivable IncreaseDecreaseInPremiumsReceivable	-23711000	USD
	us-gaap	Increase Decrease In Premiums Receivable IncreaseDecreaseInPremiumsReceivable	-9540000	USD
	pra	Increase Decrease In Reinsurance Related Assets And Liabilities IncreaseDecreaseInReinsuranceRelatedAssetsAndLiabilities	9213000	USD
	pra	Increase Decrease In Reinsurance Related Assets And Liabilities IncreaseDecreaseInReinsuranceRelatedAssetsAndLiabilities	22190000	USD
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-10827000	USD
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	22740000	USD
	us-gaap	Increase Decrease In Liability For Claims And Claims Adjustment Expense Reserve IncreaseDecreaseInLiabilityForClaimsAndClaimsAdjustmentExpenseReserve	22207000	USD
	us-gaap	Increase Decrease In Liability For Claims And Claims Adjustment Expense Reserve IncreaseDecreaseInLiabilityForClaimsAndClaimsAdjustmentExpenseReserve	42655000	USD
	us-gaap	Increase Decrease In Unearned Premiums IncreaseDecreaseInUnearnedPremiums	-41294000	USD
	us-gaap	Increase Decrease In Unearned Premiums IncreaseDecreaseInUnearnedPremiums	-20585000	USD
	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	12229000	USD
	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-11384000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	31015000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	2473000	USD
	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	765518000	USD
	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	371876000	USD
	us-gaap	Payments To Acquire Equity Securities Fv Ni PaymentsToAcquireEquitySecuritiesFvNi	119661000	USD
	us-gaap	Payments To Acquire Equity Securities Fv Ni PaymentsToAcquireEquitySecuritiesFvNi	32544000	USD
	us-gaap	Payments To Acquire Other Investments PaymentsToAcquireOtherInvestments	48521000	USD
	us-gaap	Payments To Acquire Other Investments PaymentsToAcquireOtherInvestments	21238000	USD
	pra	Payments For Proceeds From Investment In Unconsolidated Subsidiaries PaymentsForProceedsFromInvestmentInUnconsolidatedSubsidiaries	9476000	USD
	pra	Payments For Proceeds From Investment In Unconsolidated Subsidiaries PaymentsForProceedsFromInvestmentInUnconsolidatedSubsidiaries	24135000	USD
	us-gaap	Proceeds From Sale And Maturity Of Available For Sale Securities ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities	562789000	USD
	us-gaap	Proceeds From Sale And Maturity Of Available For Sale Securities ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities	433090000	USD
	us-gaap	Proceeds From Sale And Maturity Of Trading Securities Heldforinvestment ProceedsFromSaleAndMaturityOfTradingSecuritiesHeldforinvestment	384989000	USD
	us-gaap	Proceeds From Sale And Maturity Of Trading Securities Heldforinvestment ProceedsFromSaleAndMaturityOfTradingSecuritiesHeldforinvestment	171155000	USD
	us-gaap	Proceeds From Sale And Maturity Of Other Investments ProceedsFromSaleAndMaturityOfOtherInvestments	23207000	USD
	us-gaap	Proceeds From Sale And Maturity Of Other Investments ProceedsFromSaleAndMaturityOfOtherInvestments	19868000	USD
	us-gaap	Proceeds From Payments For Trading Securities ProceedsFromPaymentsForTradingSecurities	2123000	USD
	us-gaap	Proceeds From Payments For Trading Securities ProceedsFromPaymentsForTradingSecurities	1588000	USD
	us-gaap	Proceeds From Equity Method Investment Dividends Or Distributions Return Of Capital ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital	37420000	USD
	us-gaap	Proceeds From Equity Method Investment Dividends Or Distributions Return Of Capital ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital	21742000	USD
	us-gaap	Payments For Proceeds From Short Term Investments PaymentsForProceedsFromShortTermInvestments	-46987000	USD
	us-gaap	Payments For Proceeds From Short Term Investments PaymentsForProceedsFromShortTermInvestments	138116000	USD
	pra	Unsettled Security Transactions Net UnsettledSecurityTransactionsNet	-39416000	USD
	pra	Unsettled Security Transactions Net UnsettledSecurityTransactionsNet	-28808000	USD
	us-gaap	Payments To Acquire Other Productive Assets PaymentsToAcquireOtherProductiveAssets	3108000	USD
	us-gaap	Payments To Acquire Other Productive Assets PaymentsToAcquireOtherProductiveAssets	4483000	USD
	us-gaap	Payments To Acquire Intangible Assets PaymentsToAcquireIntangibleAssets	0	USD
	us-gaap	Payments To Acquire Intangible Assets PaymentsToAcquireIntangibleAssets	1198000	USD
	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	221576000	USD
	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	0	USD
	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	0	USD
	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	1142000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-70929000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	81519000	USD
	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	15000000	USD
	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	0	USD
	us-gaap	Repayments Of Secured Debt RepaymentsOfSecuredDebt	16368000	USD
	us-gaap	Repayments Of Secured Debt RepaymentsOfSecuredDebt	751000	USD
	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	5376000	USD
	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	33292000	USD
	pra	External Capital Contribution Received Return Of Capital For Segregated Portfolio Cells ExternalCapitalContributionReceivedReturnOfCapitalForSegregatedPortfolioCells	-8064000	USD
	pra	External Capital Contribution Received Return Of Capital For Segregated Portfolio Cells ExternalCapitalContributionReceivedReturnOfCapitalForSegregatedPortfolioCells	-146000	USD
	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-264000	USD
CY2021Q2	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	2700000	USD
	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-904000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-15072000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-35093000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-54986000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	48899000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	215782000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	175369000	USD
CY2021Q2	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	160796000	USD
CY2020Q2	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	224268000	USD
CY2020Q2	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	2693000	USD
	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	5275000	USD
	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	0	USD
	us-gaap	Noncash Or Part Noncash Acquisition Debt Assumed1 NoncashOrPartNoncashAcquisitionDebtAssumed1	174999000	USD
	us-gaap	Noncash Or Part Noncash Acquisition Debt Assumed1 NoncashOrPartNoncashAcquisitionDebtAssumed1	0	USD
CY2021Q2	us-gaap	Business Combination Contingent Consideration Liability BusinessCombinationContingentConsiderationLiability	24000000	USD
CY2020Q2	us-gaap	Business Combination Contingent Consideration Liability BusinessCombinationContingentConsiderationLiability	0	USD
	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	5	segment
	us-gaap	Use Of Estimates UseOfEstimates	<div style="margin-top:11pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%;text-decoration:underline">Accounting Policies</span></div><div style="margin-top:5pt;text-indent:22.5pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The preparation of financial statements in conformity with GAAP requires the Company to make estimates and assumptions that affect the reported amounts of assets and liabilities, revenues and expenses, and disclosures related to these amounts at the date of the financial statements. The Company evaluates these estimates and assumptions on an ongoing basis based on current and historical developments, market conditions, industry trends and other information that the Company believes to be reasonable under the circumstances, including the potential impacts of the COVID-19 pandemic (see "Item 1A, Risk Factors" in ProAssurance's December 31, 2020 report on Form 10-K for additional information). The Company can make no assurance that actual results will conform to its estimates and assumptions; reported results of operations may be materially affected by changes in these estimates and assumptions.</span></div><div style="margin-top:5pt;text-indent:22.5pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Except as described below, the significant accounting policies followed by ProAssurance in making estimates that materially affect financial reporting are summarized in Note 1 of the Notes to Consolidated Financial Statements in ProAssurance’s December 31, 2020 report on Form 10-K.</span></div>
CY2021Q2	us-gaap	Premiums Receivable Allowance For Doubtful Accounts PremiumsReceivableAllowanceForDoubtfulAccounts	7700000	USD
CY2020Q4	us-gaap	Premiums Receivable Allowance For Doubtful Accounts PremiumsReceivableAllowanceForDoubtfulAccounts	6100000	USD
CY2021Q1	us-gaap	Premiums Receivable At Carrying Value PremiumsReceivableAtCarryingValue	210560000	USD
CY2021Q1	us-gaap	Premiums Receivable Allowance For Doubtful Accounts PremiumsReceivableAllowanceForDoubtfulAccounts	6082000	USD
CY2021Q2	pra	Premium Receivable Allowance For Credit Loss Increase From Acquisition PremiumReceivableAllowanceForCreditLossIncreaseFromAcquisition	2137000	USD
CY2021Q2	us-gaap	Premium Receivable Credit Loss Expense Reversal PremiumReceivableCreditLossExpenseReversal	352000	USD
CY2021Q2	us-gaap	Premiums Receivable Allowance For Doubtful Accounts Write Offs Against Allowance PremiumsReceivableAllowanceForDoubtfulAccountsWriteOffsAgainstAllowance	886000	USD
CY2021Q2	us-gaap	Premiums Receivable Allowance For Doubtful Accounts Recoveries PremiumsReceivableAllowanceForDoubtfulAccountsRecoveries	44000	USD
CY2021Q2	us-gaap	Premiums Receivable At Carrying Value PremiumsReceivableAtCarryingValue	288589000	USD
CY2021Q2	us-gaap	Premiums Receivable At Carrying Value PremiumsReceivableAtCarryingValue	288589000	USD
CY2021Q2	us-gaap	Premiums Receivable Allowance For Doubtful Accounts PremiumsReceivableAllowanceForDoubtfulAccounts	7729000	USD
CY2020Q4	us-gaap	Premiums Receivable At Carrying Value PremiumsReceivableAtCarryingValue	201395000	USD
CY2020Q4	us-gaap	Premiums Receivable Allowance For Doubtful Accounts PremiumsReceivableAllowanceForDoubtfulAccounts	6131000	USD
	pra	Premium Receivable Allowance For Credit Loss Increase From Acquisition PremiumReceivableAllowanceForCreditLossIncreaseFromAcquisition	2137000	USD
	us-gaap	Premium Receivable Credit Loss Expense Reversal PremiumReceivableCreditLossExpenseReversal	457000	USD
	us-gaap	Premiums Receivable Allowance For Doubtful Accounts Write Offs Against Allowance PremiumsReceivableAllowanceForDoubtfulAccountsWriteOffsAgainstAllowance	1118000	USD
	us-gaap	Premiums Receivable Allowance For Doubtful Accounts Recoveries PremiumsReceivableAllowanceForDoubtfulAccountsRecoveries	122000	USD
CY2021Q2	us-gaap	Premiums Receivable At Carrying Value PremiumsReceivableAtCarryingValue	288589000	USD
CY2021Q2	us-gaap	Premiums Receivable At Carrying Value PremiumsReceivableAtCarryingValue	288589000	USD
CY2021Q2	us-gaap	Premiums Receivable Allowance For Doubtful Accounts PremiumsReceivableAllowanceForDoubtfulAccounts	7729000	USD
CY2020Q1	us-gaap	Premiums Receivable At Carrying Value PremiumsReceivableAtCarryingValue	266822000	USD
CY2020Q1	us-gaap	Premiums Receivable Allowance For Doubtful Accounts PremiumsReceivableAllowanceForDoubtfulAccounts	6197000	USD
CY2020Q2	us-gaap	Premium Receivable Credit Loss Expense Reversal PremiumReceivableCreditLossExpenseReversal	405000	USD
CY2020Q2	us-gaap	Premiums Receivable Allowance For Doubtful Accounts Write Offs Against Allowance PremiumsReceivableAllowanceForDoubtfulAccountsWriteOffsAgainstAllowance	16000	USD
CY2020Q2	us-gaap	Premiums Receivable Allowance For Doubtful Accounts Recoveries PremiumsReceivableAllowanceForDoubtfulAccountsRecoveries	41000	USD
CY2020Q2	us-gaap	Premiums Receivable At Carrying Value PremiumsReceivableAtCarryingValue	234840000	USD
CY2020Q2	us-gaap	Premiums Receivable Allowance For Doubtful Accounts PremiumsReceivableAllowanceForDoubtfulAccounts	6627000	USD
CY2019Q4	us-gaap	Premiums Receivable At Carrying Value PremiumsReceivableAtCarryingValue	249540000	USD
CY2019Q4	us-gaap	Premiums Receivable Allowance For Doubtful Accounts PremiumsReceivableAllowanceForDoubtfulAccounts	1590000	USD
	us-gaap	Premium Receivable Credit Loss Expense Reversal PremiumReceivableCreditLossExpenseReversal	493000	USD
	us-gaap	Premiums Receivable Allowance For Doubtful Accounts Write Offs Against Allowance PremiumsReceivableAllowanceForDoubtfulAccountsWriteOffsAgainstAllowance	674000	USD
	us-gaap	Premiums Receivable Allowance For Doubtful Accounts Recoveries PremiumsReceivableAllowanceForDoubtfulAccountsRecoveries	58000	USD
CY2020Q2	us-gaap	Premiums Receivable At Carrying Value PremiumsReceivableAtCarryingValue	234840000	USD
CY2020Q2	us-gaap	Premiums Receivable Allowance For Doubtful Accounts PremiumsReceivableAllowanceForDoubtfulAccounts	6627000	USD
CY2021Q2	pra	Segregated Portfolio Cell Dividends Payable SegregatedPortfolioCellDividendsPayable	64401000	USD
CY2020Q4	pra	Segregated Portfolio Cell Dividends Payable SegregatedPortfolioCellDividendsPayable	68865000	USD
CY2021Q2	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	2700000	USD
CY2020Q4	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	2694000	USD
CY2021Q2	us-gaap	Deferred Compensation Liability Current And Noncurrent DeferredCompensationLiabilityCurrentAndNoncurrent	53716000	USD
CY2020Q4	us-gaap	Deferred Compensation Liability Current And Noncurrent DeferredCompensationLiabilityCurrentAndNoncurrent	30334000	USD
CY2021Q2	us-gaap	Business Combination Contingent Consideration Liability BusinessCombinationContingentConsiderationLiability	24000000	USD
CY2020Q4	us-gaap	Business Combination Contingent Consideration Liability BusinessCombinationContingentConsiderationLiability	0	USD
CY2021Q2	pra	Other Liabilities Not Detailed OtherLiabilitiesNotDetailed	141306000	USD
CY2020Q4	pra	Other Liabilities Not Detailed OtherLiabilitiesNotDetailed	80146000	USD
CY2021Q2	us-gaap	Other Liabilities OtherLiabilities	286123000	USD
CY2020Q4	us-gaap	Other Liabilities OtherLiabilities	182039000	USD
CY2021Q2	us-gaap	Revenues Revenues	281628000	USD
CY2020Q2	us-gaap	Revenues Revenues	221742000	USD
	us-gaap	Revenues Revenues	501644000	USD
	us-gaap	Revenues Revenues	418443000	USD
CY2021Q2	us-gaap	Net Income Loss NetIncomeLoss	92050000	USD
CY2020Q2	us-gaap	Net Income Loss NetIncomeLoss	-18099000	USD
	us-gaap	Net Income Loss NetIncomeLoss	99785000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-40053000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-40053000	USD
CY2021Q1	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	19234000	USD
CY2021Q2	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Other Comprehensive Income Loss FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss	93000	USD
CY2021Q2	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Purchases FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases	24006000	USD
CY2021Q2	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Sales FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales	6075000	USD
CY2021Q2	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Into Level3 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel3	0	USD
CY2021Q2	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Out Of Level3 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3	9128000	USD
CY2021Q2	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	27996000	USD
CY2021Q2	us-gaap	Fair Value Assets Measured On Recurring Basis Change In Unrealized Gain Loss FairValueAssetsMeasuredOnRecurringBasisChangeInUnrealizedGainLoss	-135000	USD
CY2020Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	11958000	USD
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	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Purchases FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases	36238000	USD
CY2020Q2	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Other Comprehensive Income Loss FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss	330000	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Sales FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales	6396000	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Into Level3 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel3	3010000	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Out Of Level3 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3	16602000	USD
CY2021Q2	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	27996000	USD
	us-gaap	Fair Value Assets Measured On Recurring Basis Change In Unrealized Gain Loss FairValueAssetsMeasuredOnRecurringBasisChangeInUnrealizedGainLoss	-135000	USD
CY2020Q1	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	11675000	USD
CY2020Q2	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Purchases FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases	1406000	USD
CY2020Q2	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Sales FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales	1239000	USD
CY2020Q2	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Into Level3 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel3	0	USD
CY2020Q2	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Out Of Level3 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3	1729000	USD
CY2020Q2	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	10663000	USD
CY2020Q2	us-gaap	Fair Value Assets Measured On Recurring Basis Change In Unrealized Gain Loss FairValueAssetsMeasuredOnRecurringBasisChangeInUnrealizedGainLoss	230000	USD
CY2019Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	11157000	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Other Comprehensive Income Loss FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInOtherComprehensiveIncomeLoss	125000	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Purchases FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases	4828000	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Sales FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales	2946000	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Into Level3 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel3	1550000	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Out Of Level3 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3	4049000	USD
CY2020Q4	us-gaap	Deferred Compensation Plan Assets DeferredCompensationPlanAssets	30600000	USD
CY2020Q2	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	10663000	USD
	us-gaap	Fair Value Assets Measured On Recurring Basis Change In Unrealized Gain Loss FairValueAssetsMeasuredOnRecurringBasisChangeInUnrealizedGainLoss	8000	USD
CY2021Q2	us-gaap	Alternative Investment AlternativeInvestment	249691000	USD
CY2020Q4	us-gaap	Alternative Investment AlternativeInvestment	246259000	USD
CY2021Q2	us-gaap	Deferred Compensation Plan Assets DeferredCompensationPlanAssets	42700000	USD
CY2021Q2	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	3666295000	USD
CY2021Q2	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	77647000	USD
CY2021Q2	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	9287000	USD
CY2021Q2	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	3734655000	USD
CY2020Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	2361575000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss DebtSecuritiesAvailableForSaleAllowanceForCreditLoss	552000	USD
CY2020Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	99936000	USD
CY2020Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	3428000	USD
CY2020Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	2457531000	USD
CY2021Q2	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	3666295000	USD
CY2021Q2	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	3734655000	USD
CY2021Q2	pra	Number Of Investment Affiliates Exceeding Shareholders Equity Ten Percent Threshold Limit NumberOfInvestmentAffiliatesExceedingShareholdersEquityTenPercentThresholdLimit	0	investment
CY2021Q2	pra	Threshold Limit Of Investments Based On Shareholders Equity ThresholdLimitOfInvestmentsBasedOnShareholdersEquity	0.10
CY2021Q2	us-gaap	Assets Held By Insurance Regulators AssetsHeldByInsuranceRegulators	54100000	USD
CY2021Q2	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	1135303000	USD
CY2021Q2	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	9287000	USD
CY2021Q2	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	1094853000	USD
CY2021Q2	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	8321000	USD
CY2021Q2	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	40450000	USD
CY2021Q2	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	966000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	212934000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	3428000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	191081000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	3099000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	21853000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	329000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss DebtSecuritiesAvailableForSaleAllowanceForCreditLoss	552000	USD
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CY2021Q2	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss DebtSecuritiesAvailableForSaleAllowanceForCreditLoss	0	USD
CY2020Q1	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss DebtSecuritiesAvailableForSaleAllowanceForCreditLoss	1163000	USD
CY2020Q2	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss Not Previously Recorded DebtSecuritiesAvailableForSaleAllowanceForCreditLossNotPreviouslyRecorded	87000	USD
CY2020Q2	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss Not To Sell Before Recovery Credit Loss Previously Recorded Expense Reversal DebtSecuritiesAvailableForSaleAllowanceForCreditLossNotToSellBeforeRecoveryCreditLossPreviouslyRecordedExpenseReversal	258000	USD
CY2020Q2	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss Securities Sold DebtSecuritiesAvailableForSaleAllowanceForCreditLossSecuritiesSold	100000	USD
CY2020Q2	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss DebtSecuritiesAvailableForSaleAllowanceForCreditLoss	1408000	USD
CY2019Q4	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss DebtSecuritiesAvailableForSaleAllowanceForCreditLoss	0	USD
	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss Not Previously Recorded DebtSecuritiesAvailableForSaleAllowanceForCreditLossNotPreviouslyRecorded	1508000	USD
	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss Securities Sold DebtSecuritiesAvailableForSaleAllowanceForCreditLossSecuritiesSold	100000	USD
CY2020Q2	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss DebtSecuritiesAvailableForSaleAllowanceForCreditLoss	1408000	USD
CY2021Q2	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	196200000	USD
CY2020Q2	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	152800000	USD
	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	258100000	USD
	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	217700000	USD
CY2021Q2	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	423300000	USD
CY2020Q2	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	144400000	USD
	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	765500000	USD
	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	371900000	USD
CY2021Q2	pra	Business Owned Life Insurance Cost BusinessOwnedLifeInsuranceCost	43000000	USD
CY2020Q2	us-gaap	Income Loss From Affordable Housing Projects Equity Method Investments IncomeLossFromAffordableHousingProjectsEquityMethodInvestments	-5012000	USD
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	us-gaap	Income Loss From Affordable Housing Projects Equity Method Investments IncomeLossFromAffordableHousingProjectsEquityMethodInvestments	-9354000	USD
CY2021Q2	us-gaap	Investment Income Investment Expense InvestmentIncomeInvestmentExpense	2552000	USD
CY2020Q2	us-gaap	Investment Income Investment Expense InvestmentIncomeInvestmentExpense	1503000	USD
	us-gaap	Investment Income Investment Expense InvestmentIncomeInvestmentExpense	4638000	USD
	us-gaap	Investment Income Investment Expense InvestmentIncomeInvestmentExpense	2793000	USD
CY2021Q2	us-gaap	Net Investment Income NetInvestmentIncome	17417000	USD
CY2020Q2	us-gaap	Net Investment Income NetInvestmentIncome	18124000	USD
	us-gaap	Net Investment Income NetInvestmentIncome	32434000	USD
	us-gaap	Net Investment Income NetInvestmentIncome	38954000	USD
CY2021Q2	pra	Investment In Unconsolidated Subsidiaries InvestmentInUnconsolidatedSubsidiaries	314892000	USD
CY2020Q4	pra	Investment In Unconsolidated Subsidiaries InvestmentInUnconsolidatedSubsidiaries	310529000	USD
CY2021Q2	pra	Numberof L Ps Ll Cswith Equity Method Investment Ownership Percentage Over25percent NumberofLPsLLCswithEquityMethodInvestmentOwnershipPercentageOver25percent	4	business
CY2021Q2	us-gaap	Income Loss From Affordable Housing Projects Equity Method Investments IncomeLossFromAffordableHousingProjectsEquityMethodInvestments	-4752000	USD
CY2021Q2	us-gaap	Affordable Housing Tax Credits And Other Tax Benefits Amount AffordableHousingTaxCreditsAndOtherTaxBenefitsAmount	3330000	USD
CY2020Q2	us-gaap	Affordable Housing Tax Credits And Other Tax Benefits Amount AffordableHousingTaxCreditsAndOtherTaxBenefitsAmount	4369000	USD
	us-gaap	Affordable Housing Tax Credits And Other Tax Benefits Amount AffordableHousingTaxCreditsAndOtherTaxBenefitsAmount	6654000	USD
	us-gaap	Affordable Housing Tax Credits And Other Tax Benefits Amount AffordableHousingTaxCreditsAndOtherTaxBenefitsAmount	8737000	USD
CY2021Q2	pra	Income Lossfrom Historical Projects Equity Method Investments IncomeLossfromHistoricalProjectsEquityMethodInvestments	0	USD
CY2020Q2	pra	Income Lossfrom Historical Projects Equity Method Investments IncomeLossfromHistoricalProjectsEquityMethodInvestments	-1762000	USD
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CY2021Q2	pra	Historic Tax Credits Investmentsand Other Tax Benefits Amount HistoricTaxCreditsInvestmentsandOtherTaxBenefitsAmount	50000	USD
CY2020Q2	pra	Historic Tax Credits Investmentsand Other Tax Benefits Amount HistoricTaxCreditsInvestmentsandOtherTaxBenefitsAmount	103000	USD
	pra	Historic Tax Credits Investmentsand Other Tax Benefits Amount HistoricTaxCreditsInvestmentsandOtherTaxBenefitsAmount	100000	USD
	pra	Historic Tax Credits Investmentsand Other Tax Benefits Amount HistoricTaxCreditsInvestmentsandOtherTaxBenefitsAmount	206000	USD
CY2021Q2	pra	Impairment Losses Investments ImpairmentLossesInvestments	0	USD
CY2020Q2	pra	Impairment Losses Investments ImpairmentLossesInvestments	582000	USD
	pra	Impairment Losses Investments ImpairmentLossesInvestments	0	USD
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CY2021Q2	pra	Impairment Losses Investments Portion In Other Comprehensive Loss Before Tax Portion Attributable To Parent ImpairmentLossesInvestmentsPortionInOtherComprehensiveLossBeforeTaxPortionAttributableToParent	0	USD
CY2020Q2	pra	Impairment Losses Investments Portion In Other Comprehensive Loss Before Tax Portion Attributable To Parent ImpairmentLossesInvestmentsPortionInOtherComprehensiveLossBeforeTaxPortionAttributableToParent	237000	USD
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CY2021Q2	pra	Impairment Loss Debt Securities Portion Recognizedin Earnings ImpairmentLossDebtSecuritiesPortionRecognizedinEarnings	0	USD
CY2020Q2	pra	Impairment Loss Debt Securities Portion Recognizedin Earnings ImpairmentLossDebtSecuritiesPortionRecognizedinEarnings	345000	USD
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CY2021Q2	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	6021000	USD
CY2020Q2	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	4518000	USD
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	us-gaap	Debt Securities Available For Sale Realized Gain DebtSecuritiesAvailableForSaleRealizedGain	6945000	USD
CY2021Q2	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	352000	USD
CY2020Q2	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	467000	USD
	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	539000	USD
	us-gaap	Debt Securities Available For Sale Realized Loss DebtSecuritiesAvailableForSaleRealizedLoss	1870000	USD
CY2021Q2	us-gaap	Debt Securities Trading Realized Gain Loss DebtSecuritiesTradingRealizedGainLoss	-8000	USD
CY2020Q2	us-gaap	Debt Securities Trading Realized Gain Loss DebtSecuritiesTradingRealizedGainLoss	49000	USD
	us-gaap	Debt Securities Trading Realized Gain Loss DebtSecuritiesTradingRealizedGainLoss	64000	USD
	us-gaap	Debt Securities Trading Realized Gain Loss DebtSecuritiesTradingRealizedGainLoss	152000	USD
CY2021Q2	us-gaap	Equity Securities Fv Ni Realized Gain Loss EquitySecuritiesFvNiRealizedGainLoss	2001000	USD
CY2020Q2	us-gaap	Equity Securities Fv Ni Realized Gain Loss EquitySecuritiesFvNiRealizedGainLoss	-4633000	USD
	us-gaap	Equity Securities Fv Ni Realized Gain Loss EquitySecuritiesFvNiRealizedGainLoss	6190000	USD
	us-gaap	Equity Securities Fv Ni Realized Gain Loss EquitySecuritiesFvNiRealizedGainLoss	10558000	USD
CY2021Q2	pra	Other Investments Realized Gain Loss OtherInvestmentsRealizedGainLoss	1297000	USD
CY2020Q2	pra	Other Investments Realized Gain Loss OtherInvestmentsRealizedGainLoss	1864000	USD
	pra	Other Investments Realized Gain Loss OtherInvestmentsRealizedGainLoss	4493000	USD
	pra	Other Investments Realized Gain Loss OtherInvestmentsRealizedGainLoss	1912000	USD
CY2021Q2	us-gaap	Debt Securities Trading Unrealized Gain Loss DebtSecuritiesTradingUnrealizedGainLoss	-226000	USD
CY2020Q2	us-gaap	Debt Securities Trading Unrealized Gain Loss DebtSecuritiesTradingUnrealizedGainLoss	382000	USD
	us-gaap	Debt Securities Trading Unrealized Gain Loss DebtSecuritiesTradingUnrealizedGainLoss	-440000	USD
	us-gaap	Debt Securities Trading Unrealized Gain Loss DebtSecuritiesTradingUnrealizedGainLoss	264000	USD
CY2021Q2	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	1700000	USD
CY2020Q2	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	14699000	USD
	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	-1237000	USD
	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	-23778000	USD
CY2021Q2	us-gaap	Unrealized Gain Loss On Hybrid Instrument Net UnrealizedGainLossOnHybridInstrumentNet	529000	USD
CY2020Q2	us-gaap	Unrealized Gain Loss On Hybrid Instrument Net UnrealizedGainLossOnHybridInstrumentNet	3913000	USD
	us-gaap	Unrealized Gain Loss On Hybrid Instrument Net UnrealizedGainLossOnHybridInstrumentNet	339000	USD
	us-gaap	Unrealized Gain Loss On Hybrid Instrument Net UnrealizedGainLossOnHybridInstrumentNet	-1360000	USD
CY2021Q2	us-gaap	Gain Loss On Sale Of Other Investments GainLossOnSaleOfOtherInvestments	-129000	USD
CY2020Q2	us-gaap	Gain Loss On Sale Of Other Investments GainLossOnSaleOfOtherInvestments	5000	USD
	us-gaap	Gain Loss On Sale Of Other Investments GainLossOnSaleOfOtherInvestments	497000	USD
	us-gaap	Gain Loss On Sale Of Other Investments GainLossOnSaleOfOtherInvestments	-3000	USD
CY2021Q2	us-gaap	Gain Loss On Investments GainLossOnInvestments	10833000	USD
CY2020Q2	us-gaap	Gain Loss On Investments GainLossOnInvestments	19985000	USD
	us-gaap	Gain Loss On Investments GainLossOnInvestments	19682000	USD
	us-gaap	Gain Loss On Investments GainLossOnInvestments	-8688000	USD
	pra	Impairment Loss Debt Securities Portion Recognizedin Earnings ImpairmentLossDebtSecuritiesPortionRecognizedinEarnings	0	USD
	pra	Impairment Losses Investments Portion In Other Comprehensive Loss Before Tax Portion Attributable To Parent ImpairmentLossesInvestmentsPortionInOtherComprehensiveLossBeforeTaxPortionAttributableToParent	0	USD
CY2021Q2	pra	Impairment Loss Debt Securities Portion Recognizedin Earnings ImpairmentLossDebtSecuritiesPortionRecognizedinEarnings	0	USD
CY2021Q2	pra	Impairment Losses Investments Portion In Other Comprehensive Loss Before Tax Portion Attributable To Parent ImpairmentLossesInvestmentsPortionInOtherComprehensiveLossBeforeTaxPortionAttributableToParent	0	USD
CY2020Q2	pra	Impairment Loss Debt Securities Portion Recognizedin Earnings ImpairmentLossDebtSecuritiesPortionRecognizedinEarnings	300000	USD
	pra	Impairment Loss Debt Securities Portion Recognizedin Earnings ImpairmentLossDebtSecuritiesPortionRecognizedinEarnings	1500000	USD
CY2020Q2	pra	Impairment Losses Investments Portion In Other Comprehensive Loss Before Tax Portion Attributable To Parent ImpairmentLossesInvestmentsPortionInOtherComprehensiveLossBeforeTaxPortionAttributableToParent	200000	USD
	pra	Impairment Losses Investments Portion In Other Comprehensive Loss Before Tax Portion Attributable To Parent ImpairmentLossesInvestmentsPortionInOtherComprehensiveLossBeforeTaxPortionAttributableToParent	900000	USD
CY2021Q2	us-gaap	Gain Loss On Investments GainLossOnInvestments	10800000	USD
	us-gaap	Gain Loss On Investments GainLossOnInvestments	19700000	USD
CY2020Q2	us-gaap	Gain Loss On Investments GainLossOnInvestments	20000000.0	USD
	us-gaap	Gain Loss On Investments GainLossOnInvestments	-8700000	USD
CY2021Q1	pra	Credit Losses Recognized In Earnings In Which A Portion Of Losses Are Recognized In Comprehensive Income Loss Credit Losses On Debt Securities Held CreditLossesRecognizedInEarningsInWhichAPortionOfLossesAreRecognizedInComprehensiveIncomeLossCreditLossesOnDebtSecuritiesHeld	0	USD
CY2020Q1	pra	Credit Losses Recognized In Earnings In Which A Portion Of Losses Are Recognized In Comprehensive Income Loss Credit Losses On Debt Securities Held CreditLossesRecognizedInEarningsInWhichAPortionOfLossesAreRecognizedInComprehensiveIncomeLossCreditLossesOnDebtSecuritiesHeld	1534000	USD
CY2020Q4	pra	Credit Losses Recognized In Earnings In Which A Portion Of Losses Are Recognized In Comprehensive Income Loss Credit Losses On Debt Securities Held CreditLossesRecognizedInEarningsInWhichAPortionOfLossesAreRecognizedInComprehensiveIncomeLossCreditLossesOnDebtSecuritiesHeld	552000	USD
CY2019Q4	pra	Credit Losses Recognized In Earnings In Which A Portion Of Losses Are Recognized In Comprehensive Income Loss Credit Losses On Debt Securities Held CreditLossesRecognizedInEarningsInWhichAPortionOfLossesAreRecognizedInComprehensiveIncomeLossCreditLossesOnDebtSecuritiesHeld	470000	USD
CY2021Q2	pra	Impairment Loss Debt Securities No Impairment Previously Recognized ImpairmentLossDebtSecuritiesNoImpairmentPreviouslyRecognized	0	USD
CY2020Q2	pra	Impairment Loss Debt Securities No Impairment Previously Recognized ImpairmentLossDebtSecuritiesNoImpairmentPreviouslyRecognized	0	USD
	pra	Impairment Loss Debt Securities No Impairment Previously Recognized ImpairmentLossDebtSecuritiesNoImpairmentPreviouslyRecognized	0	USD
	pra	Impairment Loss Debt Securities No Impairment Previously Recognized ImpairmentLossDebtSecuritiesNoImpairmentPreviouslyRecognized	1064000	USD
CY2021Q2	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Additions Additional Credit Losses OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsAdditionsAdditionalCreditLosses	0	USD
CY2020Q2	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Additions Additional Credit Losses OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsAdditionsAdditionalCreditLosses	258000	USD
	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Additions Additional Credit Losses OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsAdditionsAdditionalCreditLosses	0	USD
	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Additions Additional Credit Losses OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsAdditionsAdditionalCreditLosses	258000	USD
CY2021Q2	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Reductions Securities Sold OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsReductionsSecuritiesSold	0	USD
CY2020Q2	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Reductions Securities Sold OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsReductionsSecuritiesSold	470000	USD
	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Reductions Securities Sold OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsReductionsSecuritiesSold	552000	USD
	us-gaap	Other Than Temporary Impairment Credit Losses Recognized In Earnings Reductions Securities Sold OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsReductionsSecuritiesSold	470000	USD
CY2021Q2	pra	Credit Losses Recognized In Earnings In Which A Portion Of Losses Are Recognized In Comprehensive Income Loss Credit Losses On Debt Securities Held CreditLossesRecognizedInEarningsInWhichAPortionOfLossesAreRecognizedInComprehensiveIncomeLossCreditLossesOnDebtSecuritiesHeld	0	USD
CY2020Q2	pra	Credit Losses Recognized In Earnings In Which A Portion Of Losses Are Recognized In Comprehensive Income Loss Credit Losses On Debt Securities Held CreditLossesRecognizedInEarningsInWhichAPortionOfLossesAreRecognizedInComprehensiveIncomeLossCreditLossesOnDebtSecuritiesHeld	1322000	USD
CY2021Q2	pra	Credit Losses Recognized In Earnings In Which A Portion Of Losses Are Recognized In Comprehensive Income Loss Credit Losses On Debt Securities Held CreditLossesRecognizedInEarningsInWhichAPortionOfLossesAreRecognizedInComprehensiveIncomeLossCreditLossesOnDebtSecuritiesHeld	0	USD
CY2020Q2	pra	Credit Losses Recognized In Earnings In Which A Portion Of Losses Are Recognized In Comprehensive Income Loss Credit Losses On Debt Securities Held CreditLossesRecognizedInEarningsInWhichAPortionOfLossesAreRecognizedInComprehensiveIncomeLossCreditLossesOnDebtSecuritiesHeld	1322000	USD
CY2021Q2	us-gaap	Income Tax Receivable IncomeTaxReceivable	10500000	USD
CY2020Q4	us-gaap	Income Tax Receivable IncomeTaxReceivable	18900000	USD
CY2021Q2	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	5800000	USD
CY2020Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	5700000	USD
CY2021Q2	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Accrued UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued	600000	USD
CY2020Q4	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Accrued UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued	500000	USD
	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	5	segment
	us-gaap	Number Of Reporting Units NumberOfReportingUnits	2	reportingUnit
CY2019Q4	us-gaap	Goodwill Goodwill	210725000	USD
CY2020	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	161115000	USD
CY2020Q4	us-gaap	Goodwill Goodwill	49610000	USD
	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	USD
CY2021Q2	us-gaap	Goodwill Goodwill	49610000	USD
	pra	Minimum Period For Claims Resolution MinimumPeriodForClaimsResolution	P5Y
	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Business Acquisitions LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseBusinessAcquisitions	1100000000	USD
	us-gaap	Schedule Of Liability For Unpaid Claims And Claims Adjustment Expense ScheduleOfLiabilityForUnpaidClaimsAndClaimsAdjustmentExpense	<div style="margin-top:5pt;text-indent:22.5pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Activity in the reserve for losses and loss adjustment expenses is summarized as follows:</span></div><div style="margin-top:10pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:84.649%"><tr><td style="width:1.0%"/><td style="width:47.086%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:16.343%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.663%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:15.480%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.663%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:14.965%"/><td style="width:0.1%"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-style:italic;font-weight:400;line-height:100%">(In thousands)</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Six Months Ended June 30, 2021</span></td><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">Six Months Ended June 30, 2020</span></td><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">Year Ended December 31, 2020</span></td><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Balance, beginning of year</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">2,417,179</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"> </span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">2,346,526 </span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">2,346,526 </span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 10pt;text-align:left;text-indent:-9pt;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Less reinsurance recoverables on unpaid losses and loss adjustment expenses</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">385,087</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"> </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">390,708 </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">390,708 </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Net balance, beginning of year</span></td><td colspan="2" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">2,032,092</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"> </span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">1,955,818 </span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">1,955,818 </span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Net reserves acquired from NORCAL acquisition</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">1,089,103</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"> </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">— </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">— </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Net losses:</span></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="padding-left:27pt;text-indent:-9pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Current year</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:6.5pt;font-weight:400;line-height:100%;position:relative;top:-3.5pt;vertical-align:baseline">(1)(2)(3)</span></div></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">350,252</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"> </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">398,923 </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">711,846 </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="padding-left:27pt;text-indent:-9pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Favorable development of reserves established in prior years, net</span></div></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">(18,616)</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(23,092)</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(50,399)</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 39.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Total</span></td><td colspan="2" style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">331,636</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"> </span></td><td style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">375,831 </span></td><td style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">661,447 </span></td><td style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Paid related to:</span></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 16pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Current year</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">(32,346)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(32,283)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(83,204)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 16pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Prior years</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">(282,713)</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(296,461)</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(501,969)</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 27.25pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Total paid</span></td><td colspan="2" style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">(315,059)</span></td><td style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(328,744)</span></td><td style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">(585,173)</span></td><td style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Net balance, end of period</span></td><td colspan="2" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">3,137,772</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"> </span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">2,002,905 </span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">2,032,092 </span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 10pt;text-align:left;text-indent:-9pt;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Plus reinsurance recoverables on unpaid losses and loss adjustment expenses</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">484,059</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"> </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">386,276 </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">385,087 </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Balance, end of period</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">$</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">3,621,831</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%"> </span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">2,389,181 </span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">2,417,179 </span></td><td style="background-color:#cceeff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="display:none"/><td colspan="3" style="display:none"/></tr></table></div><div style="margin-top:5pt;padding-left:49.5pt;padding-right:40.5pt;text-align:justify;text-indent:-9pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:5.85pt;font-weight:400;line-height:120%;position:relative;top:-3.15pt;vertical-align:baseline">(1)</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:120%"> Current year net losses for the six months ended June 30, 2021 included $1.8 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 </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">2</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:120%">). Additionally, current year net losses for the six months ended June 30, 2021 included $5.1 million related to a Custom Physician tail policy in the Specialty P&C segment.</span></div><div style="margin-top:5pt;padding-left:49.5pt;padding-right:40.5pt;text-align:justify;text-indent:-9pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:5.85pt;font-weight:400;line-height:120%;position:relative;top:-3.15pt;vertical-align:baseline">(2) </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:120%">Current year net losses for the six months ended June 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).</span></div><div style="margin-top:5pt;padding-left:49.5pt;padding-right:40.5pt;text-align:justify;text-indent:-9pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:5.85pt;font-weight:400;line-height:120%;position:relative;top:-3.15pt;vertical-align:baseline">(3) </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:120%">Current year net losses for the six months ended June 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.</span></div>
CY2020Q4	us-gaap	Liability For Claims And Claims Adjustment Expense LiabilityForClaimsAndClaimsAdjustmentExpense	2417179000	USD
CY2019Q4	us-gaap	Liability For Claims And Claims Adjustment Expense LiabilityForClaimsAndClaimsAdjustmentExpense	2346526000	USD
CY2019Q4	us-gaap	Liability For Claims And Claims Adjustment Expense LiabilityForClaimsAndClaimsAdjustmentExpense	2346526000	USD
CY2020Q4	us-gaap	Reinsurance Recoverable For Unpaid Claims And Claims Adjustments ReinsuranceRecoverableForUnpaidClaimsAndClaimsAdjustments	385087000	USD
CY2019Q4	us-gaap	Reinsurance Recoverable For Unpaid Claims And Claims Adjustments ReinsuranceRecoverableForUnpaidClaimsAndClaimsAdjustments	390708000	USD
CY2019Q4	us-gaap	Reinsurance Recoverable For Unpaid Claims And Claims Adjustments ReinsuranceRecoverableForUnpaidClaimsAndClaimsAdjustments	390708000	USD
CY2020Q4	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Net LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseNet	2032092000	USD
CY2019Q4	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Net LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseNet	1955818000	USD
CY2019Q4	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Net LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseNet	1955818000	USD
	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Business Acquisitions LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseBusinessAcquisitions	1089103000	USD
	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Business Acquisitions LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseBusinessAcquisitions	0	USD
CY2020	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Business Acquisitions LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseBusinessAcquisitions	0	USD
	us-gaap	Supplemental Information For Property Casualty Insurance Underwriters Current Year Claims And Claims Adjustment Expense SupplementalInformationForPropertyCasualtyInsuranceUnderwritersCurrentYearClaimsAndClaimsAdjustmentExpense	350252000	USD
	us-gaap	Supplemental Information For Property Casualty Insurance Underwriters Current Year Claims And Claims Adjustment Expense SupplementalInformationForPropertyCasualtyInsuranceUnderwritersCurrentYearClaimsAndClaimsAdjustmentExpense	398923000	USD
CY2020	us-gaap	Supplemental Information For Property Casualty Insurance Underwriters Current Year Claims And Claims Adjustment Expense SupplementalInformationForPropertyCasualtyInsuranceUnderwritersCurrentYearClaimsAndClaimsAdjustmentExpense	711846000	USD
	us-gaap	Supplemental Information For Property Casualty Insurance Underwriters Prior Year Claims And Claims Adjustment Expense SupplementalInformationForPropertyCasualtyInsuranceUnderwritersPriorYearClaimsAndClaimsAdjustmentExpense	-18616000	USD
	us-gaap	Supplemental Information For Property Casualty Insurance Underwriters Prior Year Claims And Claims Adjustment Expense SupplementalInformationForPropertyCasualtyInsuranceUnderwritersPriorYearClaimsAndClaimsAdjustmentExpense	-23092000	USD
CY2020	us-gaap	Supplemental Information For Property Casualty Insurance Underwriters Prior Year Claims And Claims Adjustment Expense SupplementalInformationForPropertyCasualtyInsuranceUnderwritersPriorYearClaimsAndClaimsAdjustmentExpense	-50399000	USD
	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Incurred Claims1 LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseIncurredClaims1	331636000	USD
	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Incurred Claims1 LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseIncurredClaims1	375831000	USD
CY2020	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Incurred Claims1 LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseIncurredClaims1	661447000	USD
	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Claims Paid Current Year1 LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidCurrentYear1	32346000	USD
	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Claims Paid Current Year1 LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidCurrentYear1	32283000	USD
CY2020	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Claims Paid Current Year1 LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidCurrentYear1	83204000	USD
	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Claims Paid Prior Years1 LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidPriorYears1	282713000	USD
	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Claims Paid Prior Years1 LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidPriorYears1	296461000	USD
CY2020	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Claims Paid Prior Years1 LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidPriorYears1	501969000	USD
	us-gaap	Payments For Losses And Loss Adjustment Expense PaymentsForLossesAndLossAdjustmentExpense	315059000	USD
	us-gaap	Payments For Losses And Loss Adjustment Expense PaymentsForLossesAndLossAdjustmentExpense	328744000	USD
CY2020	us-gaap	Payments For Losses And Loss Adjustment Expense PaymentsForLossesAndLossAdjustmentExpense	585173000	USD
CY2021Q2	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Net LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseNet	3137772000	USD
CY2020Q2	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Net LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseNet	2002905000	USD
CY2020Q4	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Net LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseNet	2032092000	USD
CY2021Q2	us-gaap	Reinsurance Recoverable For Unpaid Claims And Claims Adjustments ReinsuranceRecoverableForUnpaidClaimsAndClaimsAdjustments	484059000	USD
CY2020Q2	us-gaap	Reinsurance Recoverable For Unpaid Claims And Claims Adjustments ReinsuranceRecoverableForUnpaidClaimsAndClaimsAdjustments	386276000	USD
CY2020Q4	us-gaap	Reinsurance Recoverable For Unpaid Claims And Claims Adjustments ReinsuranceRecoverableForUnpaidClaimsAndClaimsAdjustments	385087000	USD
CY2021Q2	us-gaap	Liability For Claims And Claims Adjustment Expense LiabilityForClaimsAndClaimsAdjustmentExpense	3621831000	USD
CY2020Q2	us-gaap	Liability For Claims And Claims Adjustment Expense LiabilityForClaimsAndClaimsAdjustmentExpense	2389181000	USD
CY2020Q4	us-gaap	Liability For Claims And Claims Adjustment Expense LiabilityForClaimsAndClaimsAdjustmentExpense	2417179000	USD
CY2021Q2	us-gaap	Lessee Operating Lease Renewal Term LesseeOperatingLeaseRenewalTerm	P15Y
CY2021Q2	us-gaap	Operating Lease Expense OperatingLeaseExpense	1214000	USD
CY2020Q2	us-gaap	Operating Lease Expense OperatingLeaseExpense	891000	USD
	us-gaap	Operating Lease Expense OperatingLeaseExpense	2152000	USD
	us-gaap	Operating Lease Expense OperatingLeaseExpense	2516000	USD
CY2021Q2	us-gaap	Sublease Income SubleaseIncome	70000	USD
CY2020Q2	us-gaap	Sublease Income SubleaseIncome	38000	USD
	us-gaap	Sublease Income SubleaseIncome	124000	USD
	us-gaap	Sublease Income SubleaseIncome	76000	USD
CY2021Q2	us-gaap	Lease Cost LeaseCost	1144000	USD
CY2020Q2	us-gaap	Lease Cost LeaseCost	853000	USD
	us-gaap	Lease Cost LeaseCost	2028000	USD
	us-gaap	Lease Cost LeaseCost	2440000	USD
CY2021Q2	us-gaap	Short Term Lease Cost ShortTermLeaseCost	0	USD
CY2020Q2	us-gaap	Short Term Lease Cost ShortTermLeaseCost	0	USD
	us-gaap	Short Term Lease Cost ShortTermLeaseCost	0	USD
	us-gaap	Short Term Lease Cost ShortTermLeaseCost	0	USD
CY2021Q2	pra	Rental Income Owned Properties RentalIncomeOwnedProperties	600000	USD
CY2020Q2	pra	Rental Income Owned Properties RentalIncomeOwnedProperties	600000	USD
	pra	Rental Income Owned Properties RentalIncomeOwnedProperties	1200000	USD
	pra	Rental Income Owned Properties RentalIncomeOwnedProperties	1200000	USD
CY2021Q2	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	21670000	USD
CY2020Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	19013000	USD
CY2021Q2	us-gaap	Operating Lease Liability OperatingLeaseLiability	23499000	USD
CY2020Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	20116000	USD
CY2021Q2	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P7Y25D
CY2020Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P8Y3M21D
CY2021Q2	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0282
CY2020Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0297
	us-gaap	Operating Lease Payments OperatingLeasePayments	2533000	USD
	us-gaap	Operating Lease Payments OperatingLeasePayments	2042000	USD
CY2021Q2	us-gaap	Lessee Operating Lease Liability Payments Remainder Of Fiscal Year LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear	3074000	USD
CY2021Q2	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	5070000	USD
CY2021Q2	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	4078000	USD
CY2021Q2	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	2500000	USD
CY2021Q2	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	1969000	USD
CY2021Q2	pra	Lessee Operating Lease Liability To Be Paid After Year Four LesseeOperatingLeaseLiabilityToBePaidAfterYearFour	8875000	USD
CY2021Q2	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	25566000	USD
CY2021Q2	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	2067000	USD
CY2021Q2	us-gaap	Operating Lease Liability OperatingLeaseLiability	23499000	USD
CY2021Q2	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	459993000	USD
CY2020Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	286113000	USD
CY2021Q2	us-gaap	Unamortized Debt Issuance Expense UnamortizedDebtIssuanceExpense	1130000	USD
CY2020Q4	us-gaap	Unamortized Debt Issuance Expense UnamortizedDebtIssuanceExpense	1400000	USD
CY2021Q2	us-gaap	Long Term Debt LongTermDebt	458863000	USD
CY2020Q4	us-gaap	Long Term Debt LongTermDebt	284713000	USD
CY2021Q2	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	100000000	shares
CY2020Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	100000000	shares
CY2021Q2	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	50000000	shares
CY2020Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	50000000	shares
CY2021Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.05
CY2021Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.05
CY2020Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.31
CY2020Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.05
	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	5400000	USD
	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	19400000	USD
CY2021Q2	pra	Stock Repurchase Or Debt Repayment Remaining Authorized Amount StockRepurchaseOrDebtRepaymentRemainingAuthorizedAmount	110000000	USD
	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	0	shares
	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	0	shares
CY2021Q2	us-gaap	Other Comprehensive Income Loss Tax Portion Attributable To Parent1 OtherComprehensiveIncomeLossTaxPortionAttributableToParent1	3200000	USD
	us-gaap	Other Comprehensive Income Loss Tax Portion Attributable To Parent1 OtherComprehensiveIncomeLossTaxPortionAttributableToParent1	-5100000	USD
CY2020Q2	us-gaap	Other Comprehensive Income Loss Tax Portion Attributable To Parent1 OtherComprehensiveIncomeLossTaxPortionAttributableToParent1	16800000	USD
	us-gaap	Other Comprehensive Income Loss Tax Portion Attributable To Parent1 OtherComprehensiveIncomeLossTaxPortionAttributableToParent1	5800000	USD
CY2021Q2	us-gaap	Oci Before Reclassifications Net Of Tax Attributable To Parent OciBeforeReclassificationsNetOfTaxAttributableToParent	15926000	USD
CY2021Q2	us-gaap	Reclassification From Aoci Current Period Net Of Tax Attributable To Parent ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent	4376000	USD
CY2021Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	11550000	USD
	us-gaap	Oci Before Reclassifications Net Of Tax Attributable To Parent OciBeforeReclassificationsNetOfTaxAttributableToParent	-14489000	USD
	us-gaap	Reclassification From Aoci Current Period Net Of Tax Attributable To Parent ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent	7666000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-22155000	USD
CY2020Q2	us-gaap	Oci Before Reclassifications Net Of Tax Attributable To Parent OciBeforeReclassificationsNetOfTaxAttributableToParent	68972000	USD
CY2020Q2	us-gaap	Reclassification From Aoci Current Period Net Of Tax Attributable To Parent ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent	2932000	USD
CY2020Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	66040000	USD
	us-gaap	Oci Before Reclassifications Net Of Tax Attributable To Parent OciBeforeReclassificationsNetOfTaxAttributableToParent	26991000	USD
	us-gaap	Reclassification From Aoci Current Period Net Of Tax Attributable To Parent ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent	2816000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	24175000	USD
CY2021Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	53965000	shares
CY2020Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	53864000	shares
CY2021Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	54048000	shares
CY2020Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	53886000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	53942000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	53836000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	54023000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	53886000	shares
CY2021Q2	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	-0.01
CY2020Q2	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0
	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0
	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0
CY2021Q2	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	37000	shares
	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	19000	shares
CY2020Q2	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	180000	shares
	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	90000	shares
	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	5	segment
	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	5	segment
CY2021Q2	us-gaap	Premiums Earned Net PremiumsEarnedNet	238993000	USD
CY2021Q2	us-gaap	Net Investment Income NetInvestmentIncome	17417000	USD
CY2021Q2	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	11927000	USD
CY2021Q2	us-gaap	Gain Loss On Investments GainLossOnInvestments	10833000	USD
CY2021Q2	us-gaap	Other Income OtherIncome	2458000	USD
CY2021Q2	us-gaap	Policyholder Benefits And Claims Incurred Net PolicyholderBenefitsAndClaimsIncurredNet	181852000	USD
CY2021Q2	pra	Underwriting Policy Acquisition And Operating Expense UnderwritingPolicyAcquisitionAndOperatingExpense	56906000	USD
CY2021Q2	pra	Segregated Portfolio Cells Income Tax Expense Benefit SegregatedPortfolioCellsIncomeTaxExpenseBenefit	504000	USD
CY2021Q2	pra	Segregated Portfolio Cells Dividend Expense Income SegregatedPortfolioCellsDividendExpenseIncome	2864000	USD
CY2021Q2	us-gaap	Interest Expense InterestExpense	5176000	USD
CY2021Q2	pra	Income Tax Expense Benefit Excluding Business Acquisition Tax Effect IncomeTaxExpenseBenefitExcludingBusinessAcquisitionTaxEffect	220000	USD
CY2021Q2	pra	Segment Profit Loss SegmentProfitLoss	34106000	USD
CY2021Q2	us-gaap	Net Income Loss NetIncomeLoss	92050000	USD
CY2021Q2	us-gaap	Business Combination Bargain Purchase Gain Recognized Amount BusinessCombinationBargainPurchaseGainRecognizedAmount	74408000	USD
CY2021Q2	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	9597000	USD
	us-gaap	Premiums Earned Net PremiumsEarnedNet	426351000	USD
	us-gaap	Net Investment Income NetInvestmentIncome	32434000	USD
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	18715000	USD
	us-gaap	Gain Loss On Investments GainLossOnInvestments	19682000	USD
	us-gaap	Other Income OtherIncome	4462000	USD
	us-gaap	Policyholder Benefits And Claims Incurred Net PolicyholderBenefitsAndClaimsIncurredNet	331636000	USD
	pra	Underwriting Policy Acquisition And Operating Expense UnderwritingPolicyAcquisitionAndOperatingExpense	112430000	USD
	pra	Segregated Portfolio Cells Income Tax Expense Benefit SegregatedPortfolioCellsIncomeTaxExpenseBenefit	860000	USD
	pra	Segregated Portfolio Cells Dividend Expense Income SegregatedPortfolioCellsDividendExpenseIncome	4606000	USD
	us-gaap	Interest Expense InterestExpense	8389000	USD
	pra	Income Tax Expense Benefit Excluding Business Acquisition Tax Effect IncomeTaxExpenseBenefitExcludingBusinessAcquisitionTaxEffect	1151000	USD
	pra	Segment Profit Loss SegmentProfitLoss	42572000	USD
	us-gaap	Net Income Loss NetIncomeLoss	99785000	USD
	us-gaap	Business Combination Bargain Purchase Gain Recognized Amount BusinessCombinationBargainPurchaseGainRecognizedAmount	74408000	USD
	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	16320000	USD
CY2020Q2	us-gaap	Premiums Earned Net PremiumsEarnedNet	207293000	USD
CY2020Q2	us-gaap	Net Investment Income NetInvestmentIncome	18124000	USD
CY2020Q2	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-25355000	USD
CY2020Q2	us-gaap	Gain Loss On Investments GainLossOnInvestments	19985000	USD
CY2020Q2	us-gaap	Other Income OtherIncome	1695000	USD
CY2020Q2	us-gaap	Policyholder Benefits And Claims Incurred Net PolicyholderBenefitsAndClaimsIncurredNet	210999000	USD
CY2020Q2	pra	Underwriting Policy Acquisition And Operating Expense UnderwritingPolicyAcquisitionAndOperatingExpense	58692000	USD
CY2020Q2	pra	Segregated Portfolio Cells Income Tax Expense Benefit SegregatedPortfolioCellsIncomeTaxExpenseBenefit	480000	USD
CY2020Q2	pra	Segregated Portfolio Cells Dividend Expense Income SegregatedPortfolioCellsDividendExpenseIncome	4642000	USD
CY2020Q2	us-gaap	Interest Expense InterestExpense	3714000	USD
CY2020Q2	pra	Income Tax Expense Benefit Excluding Business Acquisition Tax Effect IncomeTaxExpenseBenefitExcludingBusinessAcquisitionTaxEffect	-38686000	USD
CY2020Q2	pra	Segment Profit Loss SegmentProfitLoss	-18099000	USD
CY2020Q2	us-gaap	Net Income Loss NetIncomeLoss	-18099000	USD
CY2020Q2	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	5085000	USD
	us-gaap	Premiums Earned Net PremiumsEarnedNet	411149000	USD
	us-gaap	Net Investment Income NetInvestmentIncome	38954000	USD
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-26917000	USD
	us-gaap	Gain Loss On Investments GainLossOnInvestments	-8688000	USD
	us-gaap	Other Income OtherIncome	3945000	USD
	us-gaap	Policyholder Benefits And Claims Incurred Net PolicyholderBenefitsAndClaimsIncurredNet	375831000	USD
	pra	Underwriting Policy Acquisition And Operating Expense UnderwritingPolicyAcquisitionAndOperatingExpense	120746000	USD
	pra	Segregated Portfolio Cells Income Tax Expense Benefit SegregatedPortfolioCellsIncomeTaxExpenseBenefit	702000	USD
	pra	Segregated Portfolio Cells Dividend Expense Income SegregatedPortfolioCellsDividendExpenseIncome	4134000	USD
	us-gaap	Interest Expense InterestExpense	7844000	USD
	pra	Income Tax Expense Benefit Excluding Business Acquisition Tax Effect IncomeTaxExpenseBenefitExcludingBusinessAcquisitionTaxEffect	-50761000	USD
	pra	Segment Profit Loss SegmentProfitLoss	-40053000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-40053000	USD
	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	9824000	USD
CY2021Q2	us-gaap	Premiums Earned Net PremiumsEarnedNet	238993000	USD
CY2020Q2	us-gaap	Premiums Earned Net PremiumsEarnedNet	207293000	USD
	us-gaap	Premiums Earned Net PremiumsEarnedNet	426351000	USD
	us-gaap	Premiums Earned Net PremiumsEarnedNet	411149000	USD

Files In Submission

Name	View Source	Status
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0001875246-21-000003-index.html	Edgar Link	pending
0001875246-21-000003.txt	Edgar Link	pending
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$PRA
PROASSURANCE CORP Stock $pra

2021 Q2 Form 10-Q Financial Statement

#000187524621000003 Filed on August 09, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$PRA PROASSURANCE CORP Stock $pra

2021 Q2 Form 10-Q Financial Statement

#000187524621000003 Filed on August 09, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$PRA
PROASSURANCE CORP Stock $pra