$MCY
MERCURY GENERAL CORP Stock $mcy

$mcy Overview Financials Valuation SEC Filings Company Website

2023 Q3 Form 10-Q Financial Statement

#000006499623000031 Filed on August 01, 2023

Income Statement

Concept	2023 Q3	2023 Q2
Revenue	$1.065B	$1.083B
YoY Change	18.32%	37.88%
Cost Of Revenue	$2.700M	$2.700M
YoY Change	8.0%	-3.57%
Gross Profit	$1.062B	$1.081B
YoY Change	18.35%	38.03%
Gross Profit Margin	99.75%	99.75%
Selling, General & Admin
YoY Change
% of Gross Profit
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$181.6M	$6.636M
YoY Change	7.52%	-95.76%
% of Gross Profit	17.09%	0.61%
Operating Expenses	$1.075B	$1.139B
YoY Change	4.84%	8.19%
Operating Profit	-$12.01M	-$58.36M
YoY Change	-90.55%	-78.37%
Interest Expense	$5.900M	-$5.549M
YoY Change	37.21%	-229.05%
% of Operating Profit
Other Income/Expense, Net
YoY Change
Pretax Income	-$15.20M	-$61.21M
YoY Change	-88.21%	-77.44%
Income Tax	-$7.002M	-$19.67M
% Of Pretax Income
Net Earnings	-$8.200M	-$41.54M
YoY Change	-91.66%	-80.28%
Net Earnings / Revenue	-0.77%	-3.84%
Basic Earnings Per Share	-$0.15	-$0.75
Diluted Earnings Per Share	-$0.15	-$0.75
COMMON SHARES
Basic Shares Outstanding	55.37M shares	55.37M shares
Diluted Shares Outstanding	55.37M shares	55.37M shares

Balance Sheet

Concept	2023 Q3	2023 Q2
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents	$453.9M	$357.7M
Short-Term Investments
Other Short-Term Assets
YoY Change
Inventory
Prepaid Expenses
Receivables
Other Receivables
Total Short-Term Assets	$18.30M	$15.09M
YoY Change	132.5%	105.11%
LONG-TERM ASSETS
Property, Plant & Equipment	$148.7M	$178.8M
YoY Change	-21.65%	-5.67%
Goodwill	$42.80M	$42.80M
YoY Change	0.0%	0.0%
Intangibles	$8.553M	$8.772M
YoY Change	-9.54%	-9.77%
Long-Term Investments	$4.997B	$4.955B
YoY Change	6.72%	2.52%
Other Assets	$66.20M	$44.66M
YoY Change	0.75%	14.3%
Total Long-Term Assets	$6.904B	$6.676B
YoY Change	7.09%	2.82%
TOTAL ASSETS
Total Short-Term Assets	$18.30M	$15.09M
Total Long-Term Assets	$6.904B	$6.676B
Total Assets	$6.922B	$6.691B
YoY Change	7.24%	2.94%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$166.8M	$165.3M
YoY Change	7.31%	-0.36%
Accrued Expenses	$19.00M	$20.11M
YoY Change	-27.94%	-32.5%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00
YoY Change
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$185.8M	$185.4M
YoY Change	2.2%	-5.25%
LONG-TERM LIABILITIES
Long-Term Debt	$573.6M	$448.5M
YoY Change	53.69%	20.21%
Other Long-Term Liabilities	$316.2M	$304.1M
YoY Change	10.97%	7.21%
Total Long-Term Liabilities	$889.8M	$752.7M
YoY Change	35.19%	14.59%
TOTAL LIABILITIES
Total Short-Term Liabilities	$185.8M	$185.4M
Total Long-Term Liabilities	$889.8M	$752.7M
Total Liabilities	$5.548B	$5.291B
YoY Change	13.03%	9.37%
SHAREHOLDERS EQUITY
Retained Earnings	$1.275B	$1.301B
YoY Change	-11.89%	-16.77%
Common Stock	$98.95M	$98.95M
YoY Change	0.0%	0.0%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$1.374B	$1.400B
YoY Change
Total Liabilities & Shareholders Equity	$6.922B	$6.691B
YoY Change	7.24%	2.94%

Cashflow Statement

Concept	2023 Q3	2023 Q2
OPERATING ACTIVITIES
Net Income	-$8.200M	-$41.54M
YoY Change	-91.66%	-80.28%
Depreciation, Depletion And Amortization	$181.6M	$6.636M
YoY Change	7.52%	-95.76%
Cash From Operating Activities	$122.3M	$87.19M
YoY Change	35.94%	-1.29%
INVESTING ACTIVITIES
Capital Expenditures	$7.900M	$10.38M
YoY Change	-192.76%	-217.95%
Acquisitions
YoY Change
Other Investing Activities	-$125.3M	$28.27M
YoY Change	605.0%	-156.55%
Cash From Investing Activities	-$133.3M	$17.89M
YoY Change	407.04%	-130.43%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	107.2M	-17.73M
YoY Change	-702.55%	-49.78%
NET CHANGE
Cash From Operating Activities	122.3M	87.19M
Cash From Investing Activities	-133.3M	17.89M
Cash From Financing Activities	107.2M	-17.73M
Net Change In Cash	96.20M	87.34M
YoY Change	109.66%	-1615.85%
FREE CASH FLOW
Cash From Operating Activities	$122.3M	$87.19M
Capital Expenditures	$7.900M	$10.38M
Free Cash Flow	$114.4M	$76.81M
YoY Change	16.16%	-20.92%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2023Q2	us-gaap	Reinsurance Receivables Case Basis ReinsuranceReceivablesCaseBasis	27538000	usd
CY2022Q4	us-gaap	Reinsurance Receivables Case Basis ReinsuranceReceivablesCaseBasis	25895000	usd
CY2023Q2	us-gaap	Deferred Policy Acquisition Costs DeferredPolicyAcquisitionCosts	278261000	usd
CY2022Q4	us-gaap	Deferred Policy Acquisition Costs DeferredPolicyAcquisitionCosts	266475000	usd
CY2023Q2	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	307036000	usd
CY2022Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	332938000	usd
CY2023Q2	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	160067000	usd
CY2022Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	171442000	usd
CY2023Q2	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	18775000	usd
CY2022Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	20183000	usd
CY2023Q2	us-gaap	Income Taxes Receivable IncomeTaxesReceivable	90126000	usd
CY2022Q4	us-gaap	Income Taxes Receivable IncomeTaxesReceivable	55136000	usd
CY2023Q2	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	44660000	usd
CY2022Q4	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	42903000	usd
CY2023Q2	us-gaap	Goodwill Goodwill	42796000	usd
CY2022Q4	us-gaap	Goodwill Goodwill	42796000	usd
CY2023Q2	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	8772000	usd
CY2022Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	9212000	usd
CY2023Q2	us-gaap	Other Assets OtherAssets	50831000	usd
CY2022Q4	us-gaap	Other Assets OtherAssets	49628000	usd
CY2023Q2	us-gaap	Assets Assets	6690640000	usd
CY2022Q4	us-gaap	Assets Assets	6514188000	usd
CY2023Q2	us-gaap	Liability For Claims And Claims Adjustment Expense Property Casualty Liability LiabilityForClaimsAndClaimsAdjustmentExpensePropertyCasualtyLiability	2720007000	usd
CY2022Q4	us-gaap	Liability For Claims And Claims Adjustment Expense Property Casualty Liability LiabilityForClaimsAndClaimsAdjustmentExpensePropertyCasualtyLiability	2584910000	usd
CY2023Q2	us-gaap	Unearned Premiums UnearnedPremiums	1632390000	usd
CY2022Q4	us-gaap	Unearned Premiums UnearnedPremiums	1545639000	usd
CY2023Q2	us-gaap	Notes Payable NotesPayable	448529000	usd
CY2022Q4	us-gaap	Notes Payable NotesPayable	398330000	usd
CY2023Q2	us-gaap	Accounts Payable And Accrued Liabilities Current And Noncurrent AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent	165331000	usd
CY2022Q4	us-gaap	Accounts Payable And Accrued Liabilities Current And Noncurrent AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent	151686000	usd
CY2023Q2	us-gaap	Operating Lease Liability OperatingLeaseLiability	20114000	usd
CY2022Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	21924000	usd
CY2023Q2	us-gaap	Other Liabilities OtherLiabilities	304129000	usd
CY2022Q4	us-gaap	Other Liabilities OtherLiabilities	289568000	usd
CY2023Q2	us-gaap	Liabilities Liabilities	5290500000	usd
CY2022Q4	us-gaap	Liabilities Liabilities	4992057000	usd
CY2023Q2	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		usd
CY2022Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		usd
CY2023Q2	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	70000000	shares
CY2022Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	70000000	shares
CY2023Q2	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	55371000	shares
CY2023Q2	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	55371000	shares
CY2022Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	55371000	shares
CY2022Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	55371000	shares
CY2023Q2	us-gaap	Common Stock Value CommonStockValue	98947000	usd
CY2022Q4	us-gaap	Common Stock Value CommonStockValue	98947000	usd
CY2023Q2	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	1301193000	usd
CY2022Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	1423184000	usd
CY2023Q2	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1400140000	usd
CY2022Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1522131000	usd
CY2023Q2	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	6690640000	usd
CY2022Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	6514188000	usd
CY2023Q2	us-gaap	Premiums Earned Net PremiumsEarnedNet	1034469000	usd
CY2022Q2	us-gaap	Premiums Earned Net PremiumsEarnedNet	987512000	usd
CY2023Q2	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	58350000	usd
CY2022Q2	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	38555000	usd
CY2023Q2	us-gaap	Other Income OtherIncome	10186000	usd
CY2022Q2	us-gaap	Other Income OtherIncome	1496000	usd
CY2023Q2	us-gaap	Revenues Revenues	1083227000	usd
CY2022Q2	us-gaap	Revenues Revenues	785625000	usd
CY2023Q2	us-gaap	Policyholder Benefits And Claims Incurred Net PolicyholderBenefitsAndClaimsIncurredNet	897810000	usd
CY2022Q2	us-gaap	Policyholder Benefits And Claims Incurred Net PolicyholderBenefitsAndClaimsIncurredNet	826779000	usd
CY2023Q2	us-gaap	Deferred Policy Acquisition Cost Amortization Expense DeferredPolicyAcquisitionCostAmortizationExpense	172737000	usd
CY2022Q2	us-gaap	Deferred Policy Acquisition Cost Amortization Expense DeferredPolicyAcquisitionCostAmortizationExpense	156482000	usd
CY2023Q2	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	68341000	usd
CY2022Q2	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	69430000	usd
CY2023Q2	us-gaap	Interest Expense InterestExpense	5549000	usd
CY2022Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-60659000	usd
CY2023Q2	us-gaap	Net Income Loss NetIncomeLoss	-41543000	usd
CY2022Q2	us-gaap	Net Income Loss NetIncomeLoss	-210681000	usd
CY2023Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.75
CY2022Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-3.80
CY2023Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.75
CY2022Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-3.80
CY2023Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	55371000	shares
CY2022Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	55371000	shares
CY2023Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	55371000	shares
CY2022Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	55371000	shares
CY2023Q2	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1400140000	usd
CY2022Q2	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1662365000	usd
	us-gaap	Net Income Loss NetIncomeLoss	-86831000	usd
	us-gaap	Net Income Loss NetIncomeLoss	-407599000	usd
	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	35917000	usd
	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	45699000	usd
	us-gaap	Realized Investment Gains Losses RealizedInvestmentGainsLosses	29229000	usd
	us-gaap	Realized Investment Gains Losses RealizedInvestmentGainsLosses	-437024000	usd
	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	5855000	usd
	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	-85000	usd
	us-gaap	Increase Decrease In Premiums Receivable IncreaseDecreaseInPremiumsReceivable	19107000	usd
	us-gaap	Increase Decrease In Premiums Receivable IncreaseDecreaseInPremiumsReceivable	17532000	usd
	us-gaap	Increase Decrease In Reinsurance Recoverable IncreaseDecreaseInReinsuranceRecoverable	1643000	usd
	us-gaap	Increase Decrease In Reinsurance Recoverable IncreaseDecreaseInReinsuranceRecoverable	-17293000	usd
	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	36747000	usd
	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	116992000	usd
	us-gaap	Increase Decrease In Deferred Policy Acquisition Costs IncreaseDecreaseInDeferredPolicyAcquisitionCosts	11786000	usd
	us-gaap	Increase Decrease In Deferred Policy Acquisition Costs IncreaseDecreaseInDeferredPolicyAcquisitionCosts	15274000	usd
	us-gaap	Increase Decrease In Liability For Claims And Claims Adjustment Expense Reserve IncreaseDecreaseInLiabilityForClaimsAndClaimsAdjustmentExpenseReserve	135097000	usd
	us-gaap	Increase Decrease In Liability For Claims And Claims Adjustment Expense Reserve IncreaseDecreaseInLiabilityForClaimsAndClaimsAdjustmentExpenseReserve	160392000	usd
	us-gaap	Increase Decrease In Unearned Premiums IncreaseDecreaseInUnearnedPremiums	86751000	usd
	us-gaap	Increase Decrease In Unearned Premiums IncreaseDecreaseInUnearnedPremiums	78141000	usd
	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	14499000	usd
	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-1756000	usd
	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	24296000	usd
	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	15425000	usd
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	105362000	usd
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	194906000	usd
	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	255888000	usd
	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	777936000	usd
	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	118121000	usd
	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	365827000	usd
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	266801000	usd
CY2022Q2	mcy	Incremental Securities Excluded From Computation Of Earnings Per Share Amount IncrementalSecuritiesExcludedFromComputationOfEarningsPerShareAmount	2276	shares
	mcy	Incremental Securities Excluded From Computation Of Earnings Per Share Amount IncrementalSecuritiesExcludedFromComputationOfEarningsPerShareAmount	3012	shares
CY2023Q2	us-gaap	Reinsurance Recoverables Gross ReinsuranceRecoverablesGross	30000000	usd
	us-gaap	Reinsurance Retention Policy Reinsured Risk Percentage ReinsuranceRetentionPolicyReinsuredRiskPercentage	0.735
CY2022Q2	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	4600000	usd
CY2022Q2	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	2800000	usd
	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	9000000	usd
	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	5600000	usd
CY2023Q2	us-gaap	Contract With Customer Asset Net ContractWithCustomerAssetNet	0	usd
CY2023Q2	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	0	usd
CY2022Q4	us-gaap	Contract With Customer Asset Net ContractWithCustomerAssetNet	0	usd
CY2023Q2	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	0	usd
	us-gaap	Revenue Recognition Interest RevenueRecognitionInterest	The Company made certain accounting policy elections for its accrued interest receivables allowed under Topic 326: a) an election to present accrued interest receivable balances separately from the associated financial assets on the balance sheet, and b) an election not to measure an allowance for credit losses on accrued interest receivable amounts and instead write off uncollectible accrued interest amounts in a timely manner by reversing interest income. The Company's accrued interest receivable balances are included in accrued investment income receivable in its consolidated balance sheets.
	mcy	Fair Value Assets Level1 To Level2 To Level3 Transfers Amount FairValueAssetsLevel1ToLevel2ToLevel3TransfersAmount	0	usd
CY2023Q2	us-gaap	Notes Receivable Fair Value Disclosure NotesReceivableFairValueDisclosure	9925000	usd
CY2022Q4	us-gaap	Notes Receivable Fair Value Disclosure NotesReceivableFairValueDisclosure	0	usd
CY2023Q2	us-gaap	Fair Value Option Changes In Fair Value Gain Loss1 FairValueOptionChangesInFairValueGainLoss1	-35360000	usd
CY2022Q2	us-gaap	Fair Value Option Changes In Fair Value Gain Loss1 FairValueOptionChangesInFairValueGainLoss1	-224309000	usd
	mcy	Percentage Of Unadjusted Fair Value Obtained PercentageOfUnadjustedFairValueObtained	0.982
CY2023Q2	mcy	Three Private Equity Funds Using Nav ThreePrivateEquityFundsUsingNAV	85400000	usd
	mcy	Fair Value Assets Level1 To Level2 To Level3 Transfers Amount FairValueAssetsLevel1ToLevel2ToLevel3TransfersAmount	0	usd
CY2018Q1	mcy	Numberof Executives NumberofExecutives	4	executive
CY2023Q2	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Nonvested Weighted Average Grant Date Fair Value SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValue	8.09
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.3318
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.0262
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.0540
	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P72M
	us-gaap	Unrecognized Tax Benefits Period Increase Decrease UnrecognizedTaxBenefitsPeriodIncreaseDecrease	-2100000	usd
	us-gaap	Schedule Of Liability For Unpaid Claims And Claims Adjustment Expense ScheduleOfLiabilityForUnpaidClaimsAndClaimsAdjustmentExpense	<div style="text-align:justify;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 following table presents the activity in loss and loss adjustment expense reserves:</span></div><div style="margin-top:5pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:100.000%"><tr><td style="width:1.0%"></td><td style="width:73.900%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:11.034%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.530%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:11.036%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%"> </span></td><td colspan="9" 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,</span></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%"> </span></td><td colspan="3" style="border-top:1pt solid #000000;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%">2023</span></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;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%">2022</span></td></tr><tr style="height:3pt"><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%"> </span></td><td colspan="9" 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%">(Amounts in thousands)</span></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Gross reserves, beginning of period</span></td><td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">2,584,910 </span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></td><td style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">2,226,430 </span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:top"><div style="padding-left:18pt;text-indent:-4.5pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Reinsurance recoverables on unpaid losses, beginning of period</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:9pt;font-weight:400;line-height:100%">(25,322)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></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:9pt;font-weight:400;line-height:100%">(41,377)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Net reserves, beginning 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:9pt;font-weight:400;line-height:100%">2,559,588 </span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></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:9pt;font-weight:400;line-height:100%">2,185,053 </span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Incurred losses and loss adjustment expenses related to:</span></td><td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:0 1pt"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 19pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Current year</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:9pt;font-weight:400;line-height:100%">1,847,123 </span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></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:9pt;font-weight:400;line-height:100%">1,597,354 </span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 19pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Prior years</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:9pt;font-weight:400;line-height:100%">(19,784)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></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:9pt;font-weight:400;line-height:100%">51,359 </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 30.25pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Total incurred losses and loss adjustment expenses</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:9pt;font-weight:400;line-height:100%">1,827,339 </span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></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:9pt;font-weight:400;line-height:100%">1,648,713 </span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Loss and loss adjustment expense payments related to:</span></td><td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:0 1pt"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 19pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Current year</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:9pt;font-weight:400;line-height:100%">874,245 </span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></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:9pt;font-weight:400;line-height:100%">738,472 </span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt 2px 19pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Prior years</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:9pt;font-weight:400;line-height:100%">820,341 </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></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:9pt;font-weight:400;line-height:100%">735,058 </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 30.25pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Total payments</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:9pt;font-weight:400;line-height:100%">1,694,586 </span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></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:9pt;font-weight:400;line-height:100%">1,473,530 </span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Net reserves, end of period</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:9pt;font-weight:400;line-height:100%">2,692,341 </span></td><td style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></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:9pt;font-weight:400;line-height:100%">2,360,236 </span></td><td style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt 2px 19pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Reinsurance recoverables on unpaid losses, end of period</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:9pt;font-weight:400;line-height:100%">27,666 </span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"></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:9pt;font-weight:400;line-height:100%">26,586 </span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Gross reserves, end of period</span></td><td style="background-color:#ffffff;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:9pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">2,720,007 </span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;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:9pt;font-weight:400;line-height:100%">2,386,822 </span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"></td></tr></table></div>
CY2022Q4	us-gaap	Liability For Claims And Claims Adjustment Expense LiabilityForClaimsAndClaimsAdjustmentExpense	2584910000	usd
CY2022Q4	mcy	Reissuance Recoverable ReissuanceRecoverable	25322000	usd
CY2022Q4	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Net LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseNet	2559588000	usd
	us-gaap	Supplemental Information For Property Casualty Insurance Underwriters Current Year Claims And Claims Adjustment Expense SupplementalInformationForPropertyCasualtyInsuranceUnderwritersCurrentYearClaimsAndClaimsAdjustmentExpense	1847123000	usd
	us-gaap	Supplemental Information For Property Casualty Insurance Underwriters Prior Year Claims And Claims Adjustment Expense SupplementalInformationForPropertyCasualtyInsuranceUnderwritersPriorYearClaimsAndClaimsAdjustmentExpense	-19784000	usd
	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Incurred Claims1 LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseIncurredClaims1	1827339000	usd
	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Claims Paid Current Year1 LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidCurrentYear1	874245000	usd
	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Claims Paid Prior Years1 LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidPriorYears1	820341000	usd
	us-gaap	Payments For Losses And Loss Adjustment Expense PaymentsForLossesAndLossAdjustmentExpense	1694586000	usd
CY2023Q2	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Net LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseNet	2692341000	usd
CY2023Q2	us-gaap	Liability For Claims And Claims Adjustment Expense LiabilityForClaimsAndClaimsAdjustmentExpense	2720007000	usd
	us-gaap	Supplemental Information For Property Casualty Insurance Underwriters Prior Year Claims And Claims Adjustment Expense SupplementalInformationForPropertyCasualtyInsuranceUnderwritersPriorYearClaimsAndClaimsAdjustmentExpense	-19800000	usd
CY2023Q2	mcy	Notes Payable Principal NotesPayablePrincipal	450000000	usd
CY2023Q2	us-gaap	Debt Instrument Unamortized Discount Premium And Debt Issuance Costs Net DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet	1471000	usd
CY2023Q2	us-gaap	Notes Payable NotesPayable	448529000	usd
CY2017Q1	us-gaap	Debt Instrument Interest Rate Stated Percentage DebtInstrumentInterestRateStatedPercentage	0.044
CY2017Q1	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	3400000	usd
CY2017Q1	mcy	Debt Instrument Discount Percent DebtInstrumentDiscountPercent	0.99847
CY2017Q1	us-gaap	Debt Instrument Interest Rate Effective Percentage DebtInstrumentInterestRateEffectivePercentage	0.0445
CY2023Q2	us-gaap	Unamortized Debt Issuance Expense UnamortizedDebtIssuanceExpense	800000	usd
CY2022Q4	us-gaap	Loss Contingency Damages Sought Value LossContingencyDamagesSoughtValue	52000000	usd
CY2020	us-gaap	Increase Decrease In Unearned Premiums Net IncreaseDecreaseInUnearnedPremiumsNet	128000000	usd
CY2023Q2	us-gaap	Loss Contingency Damages Awarded Value LossContingencyDamagesAwardedValue	250000	usd
CY2023Q2	us-gaap	Loss Contingency Damages Awarded Value LossContingencyDamagesAwardedValue	25000000	usd
	mcy	Number Of Subsidiaries Company Controls NumberOfSubsidiariesCompanyControls	12	subsidiary
CY2023Q2	us-gaap	Number Of States In Which Entity Operates NumberOfStatesInWhichEntityOperates	11	state
	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	1	segment
CY2023Q2	us-gaap	Premiums Earned Net PremiumsEarnedNet	1034500000	usd
CY2022Q2	us-gaap	Premiums Earned Net PremiumsEarnedNet	987500000	usd
CY2023Q2	us-gaap	Policyholder Benefits And Claims Incurred Net PolicyholderBenefitsAndClaimsIncurredNet	897800000	usd
CY2022Q2	us-gaap	Policyholder Benefits And Claims Incurred Net PolicyholderBenefitsAndClaimsIncurredNet	826800000	usd
CY2023Q2	us-gaap	Other Underwriting Expense OtherUnderwritingExpense	241200000	usd
CY2022Q2	us-gaap	Other Underwriting Expense OtherUnderwritingExpense	225900000	usd
CY2023Q2	us-gaap	Underwriting Income Loss UnderwritingIncomeLoss	-104500000	usd
CY2022Q2	us-gaap	Underwriting Income Loss UnderwritingIncomeLoss	-65200000	usd
CY2022Q2	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	38600000	usd
CY2022Q2	us-gaap	Realized Investment Gains Losses RealizedInvestmentGainsLosses	-241900000	usd
CY2022Q2	us-gaap	Other Income OtherIncome	1500000	usd
CY2023Q2	us-gaap	Interest Expense InterestExpense	5500000	usd
CY2022Q2	us-gaap	Interest Expense InterestExpense	4300000	usd
CY2022Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-271300000	usd
CY2022Q2	us-gaap	Net Income Loss NetIncomeLoss	-210700000	usd
	us-gaap	Premiums Earned Net PremiumsEarnedNet	2039200000	usd
	us-gaap	Premiums Earned Net PremiumsEarnedNet	1950100000	usd
	us-gaap	Policyholder Benefits And Claims Incurred Net PolicyholderBenefitsAndClaimsIncurredNet	1827300000	usd
	us-gaap	Policyholder Benefits And Claims Incurred Net PolicyholderBenefitsAndClaimsIncurredNet	1648700000	usd
	us-gaap	Other Underwriting Expense OtherUnderwritingExpense	475300000	usd
	us-gaap	Other Underwriting Expense OtherUnderwritingExpense	458400000	usd
	us-gaap	Underwriting Income Loss UnderwritingIncomeLoss	-263400000	usd
	us-gaap	Underwriting Income Loss UnderwritingIncomeLoss	-157000000.0	usd
	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	73900000	usd
	us-gaap	Realized Investment Gains Losses RealizedInvestmentGainsLosses	-437000000.0	usd
	us-gaap	Other Income OtherIncome	4100000	usd
	us-gaap	Interest Expense InterestExpense	10500000	usd
	us-gaap	Interest Expense InterestExpense	8500000	usd
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-524500000	usd
	us-gaap	Net Income Loss NetIncomeLoss	-407600000	usd
CY2023Q2	us-gaap	Premiums Earned Net PremiumsEarnedNet	1034500000	usd
CY2022Q2	us-gaap	Premiums Earned Net PremiumsEarnedNet	987500000	usd
CY2023Q2	us-gaap	Direct Premiums Written DirectPremiumsWritten	1139500000	usd
CY2022Q2	us-gaap	Direct Premiums Written DirectPremiumsWritten	1034100000	usd
	us-gaap	Premiums Earned Net PremiumsEarnedNet	2039200000	usd
	us-gaap	Premiums Earned Net PremiumsEarnedNet	1950100000	usd
	us-gaap	Direct Premiums Written DirectPremiumsWritten	2158000000	usd
	us-gaap	Direct Premiums Written DirectPremiumsWritten	2052300000	usd
CY2023Q2	ecd	Non Rule10b51 Arr Trmntd Flag NonRule10b51ArrTrmntdFlag	false

Files In Submission

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0000064996-23-000031-index.html	Edgar Link	pending
0000064996-23-000031.txt	Edgar Link	pending
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Financial_Report.xlsx	Edgar Link	pending
mcy-20230630.htm	Edgar Link	pending
mcy-20230630.xsd	Edgar Link	pending
mcy-2023630x10qxex151.htm	Edgar Link	pending
mcy-2023630x10qxex152.htm	Edgar Link	pending
mcy-2023630x10qxex311.htm	Edgar Link	pending
mcy-2023630x10qxex312.htm	Edgar Link	pending
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FilingSummary.xml	Edgar Link	unprocessable
mcy-20230630_cal.xml	Edgar Link	unprocessable
mcy-20230630_def.xml	Edgar Link	unprocessable
mcy-20230630_lab.xml	Edgar Link	unprocessable
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mcy-20230630_htm.xml	Edgar Link	completed
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report.css	Edgar Link	pending
Show.js	Edgar Link	pending

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$MCY
MERCURY GENERAL CORP Stock $mcy

2023 Q3 Form 10-Q Financial Statement

#000006499623000031 Filed on August 01, 2023

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$MCY MERCURY GENERAL CORP Stock $mcy

2023 Q3 Form 10-Q Financial Statement

#000006499623000031 Filed on August 01, 2023

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$MCY
MERCURY GENERAL CORP Stock $mcy