$MHLD
Maiden Holdings, Ltd. Stock $mhld

$mhld Overview Financials Valuation SEC Filings Company Website

2021 Q2 Form 10-Q Financial Statement

#000141210021000067 Filed on August 09, 2021

Income Statement

Concept	2021 Q2	2020 Q2
Revenue	$21.98M	$44.74M
YoY Change	-50.88%	-76.45%
Cost Of Revenue	-$5.327M	$11.01M
YoY Change	-148.39%	-90.94%
Gross Profit	$27.31M	$33.73M
YoY Change	-19.06%	-50.67%
Gross Profit Margin	124.24%	75.4%
Selling, General & Admin	$35.74M	$9.300M
YoY Change	284.34%	-23.77%
% of Gross Profit	130.91%	27.57%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$6.899M	$8.154M
YoY Change	-15.39%	-83.58%
% of Gross Profit	25.27%	24.17%
Operating Expenses	$3.808M	$2.413M
YoY Change	57.81%	-9.08%
Operating Profit	$23.50M	$31.32M
YoY Change	-24.98%	-52.35%
Interest Expense	-$7.709M	-$7.100M
YoY Change	8.58%	97.22%
% of Operating Profit	-32.81%	-22.67%
Other Income/Expense, Net
YoY Change
Pretax Income	$5.080M	$9.194M
YoY Change	-44.75%	211.66%
Income Tax	-$257.0K	-$18.00K
% Of Pretax Income	-5.06%	-0.2%
Net Earnings	$8.112M	$9.212M
YoY Change	-11.94%	-159.77%
Net Earnings / Revenue	36.91%	20.59%
Basic Earnings Per Share	$0.31	$0.11
Diluted Earnings Per Share	$0.31	$0.11
COMMON SHARES
Basic Shares Outstanding	86.23M shares	84.54M shares
Diluted Shares Outstanding	86.24M shares	84.54M shares

Balance Sheet

Concept	2021 Q2	2020 Q2
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents	$42.11M	$56.58M
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		$1.800M
YoY Change		-37.93%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments	$60.11M	$1.644B
YoY Change	-96.34%	-48.12%
Other Assets	$31.65M	$80.90M
YoY Change	-60.88%	-81.93%
Total Long-Term Assets
YoY Change
TOTAL ASSETS
Total Short-Term Assets
Total Long-Term Assets
Total Assets	$2.607B	$3.213B
YoY Change	-18.88%	-30.12%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable
YoY Change
Accrued Expenses	$59.83M	$17.80M
YoY Change	236.11%	20.27%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00
YoY Change
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$59.83M	$17.80M
YoY Change	236.11%	20.27%
LONG-TERM LIABILITIES
Long-Term Debt	$255.2M	$255.0M
YoY Change	0.09%	0.08%
Other Long-Term Liabilities	$94.35M	$156.5M
YoY Change	-39.71%	137.12%
Total Long-Term Liabilities	$349.6M	$411.5M
YoY Change	-15.05%	28.27%
TOTAL LIABILITIES
Total Short-Term Liabilities	$59.83M	$17.80M
Total Long-Term Liabilities	$349.6M	$411.5M
Total Liabilities	$2.203B	$2.683B
YoY Change	-17.9%	-33.07%
SHAREHOLDERS EQUITY
Retained Earnings	-$517.4M	-$665.7M
YoY Change	-22.28%	8.08%
Common Stock	$922.0K	$897.0K
YoY Change	2.79%	1.82%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$33.89M	$31.53M
YoY Change	7.48%	0.02%
Treasury Stock Shares	5.814M shares	5.014M shares
Shareholders Equity	$404.2M	$530.7M
YoY Change
Total Liabilities & Shareholders Equity	$2.607B	$3.213B
YoY Change	-18.88%	-30.12%

Cashflow Statement

Concept	2021 Q2	2020 Q2
OPERATING ACTIVITIES
Net Income	$8.112M	$9.212M
YoY Change	-11.94%	-159.77%
Depreciation, Depletion And Amortization	$6.899M	$8.154M
YoY Change	-15.39%	-83.58%
Cash From Operating Activities	-$82.98M	-$200.7M
YoY Change	-58.65%	16.82%
INVESTING ACTIVITIES
Capital Expenditures
YoY Change
Acquisitions
YoY Change
Other Investing Activities	$51.81M	$159.5M
YoY Change	-67.52%	-68.17%
Cash From Investing Activities	$51.81M	$159.5M
YoY Change	-67.52%	-68.17%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-27.28M	0.000
YoY Change
NET CHANGE
Cash From Operating Activities	-82.98M	-200.7M
Cash From Investing Activities	51.81M	159.5M
Cash From Financing Activities	-27.28M	0.000
Net Change In Cash	-58.46M	-41.20M
YoY Change	41.9%	-112.51%
FREE CASH FLOW
Cash From Operating Activities	-$82.98M	-$200.7M
Capital Expenditures
Free Cash Flow
YoY Change

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
	dei	Document Transition Report DocumentTransitionReport	false
	dei	Amendment Flag AmendmentFlag	false
	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2021
	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q2
	dei	Entity Central Index Key EntityCentralIndexKey	0001412100
	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
	dei	Document Type DocumentType	10-Q
	dei	Document Quarterly Report DocumentQuarterlyReport	true
	dei	Document Period End Date DocumentPeriodEndDate	2021-06-30
	dei	Entity File Number EntityFileNumber	001-34042
	dei	Entity Registrant Name EntityRegistrantName	MAIDEN HOLDINGS, LTD.
	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	D0
	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	98-0570192
CY2020Q4	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	0	USD
	dei	Entity Address City Or Town EntityAddressCityOrTown	Pembroke
	dei	Entity Address Address Line1 EntityAddressAddressLine1	94 Pitts Bay Road
	dei	Entity Address Country EntityAddressCountry	BM
	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	HM08
	dei	City Area Code CityAreaCode	441
	dei	Local Phone Number LocalPhoneNumber	298-4900
	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
	dei	Entity Filer Category EntityFilerCategory	Accelerated Filer
	dei	Entity Small Business EntitySmallBusiness	true
	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
	dei	Entity Shell Company EntityShellCompany	false
CY2021Q3	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	86420221	shares
CY2021Q2	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	911547000	USD
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CY2021Q2	us-gaap	Equity Securities Fv Ni Cost EquitySecuritiesFvNiCost	1000000	USD
CY2021Q2	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	4905000	USD
CY2021Q2	us-gaap	Equity Method Investments EquityMethodInvestments	60113000	USD
CY2020Q4	us-gaap	Equity Method Investments EquityMethodInvestments	39886000	USD
CY2020Q4	mhld	Investment Trade Payable InvestmentTradePayable	0	USD
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CY2020Q4	us-gaap	Other Investments OtherInvestments	67010000	USD
CY2021Q2	us-gaap	Investments Investments	1091941000	USD
CY2020Q4	us-gaap	Investments Investments	1320307000	USD
CY2021Q2	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	42109000	USD
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CY2021Q2	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	31648000	USD
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CY2020Q4	us-gaap	Accrued Investment Income Receivable AccruedInvestmentIncomeReceivable	11240000	USD
CY2021Q2	us-gaap	Premiums Receivable At Carrying Value PremiumsReceivableAtCarryingValue	2372000	USD
CY2020Q4	us-gaap	Premiums Receivable At Carrying Value PremiumsReceivableAtCarryingValue	5777000	USD
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CY2020Q4	us-gaap	Assets Assets	2948455000	USD
CY2021Q2	us-gaap	Liability For Claims And Claims Adjustment Expense LiabilityForClaimsAndClaimsAdjustmentExpense	1674590000	USD
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CY2020Q4	us-gaap	Unearned Premiums UnearnedPremiums	144271000	USD
CY2021Q2	mhld	Deferred Gain On Reinsurance DeferredGainOnReinsurance	54254000	USD
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CY2021Q2	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	5723000	USD
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CY2021Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.31
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CY2020Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	84537385	shares
CY2020Q2	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	41778000	USD
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	85684511	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	83896804	shares
CY2021Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	86235372	shares
CY2020Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	84537385	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	85688893	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	83896804	shares
CY2021Q2	us-gaap	Net Income Loss NetIncomeLoss	8112000	USD
CY2020Q2	us-gaap	Net Income Loss NetIncomeLoss	9212000	USD
	us-gaap	Net Income Loss NetIncomeLoss	17398000	USD
	us-gaap	Net Income Loss NetIncomeLoss	30073000	USD
CY2021Q2	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	2206000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-17325000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	1575000	USD
CY2021Q2	us-gaap	Oci Equity Method Investment Before Tax OciEquityMethodInvestmentBeforeTax	-2407000	USD
CY2020Q2	us-gaap	Oci Equity Method Investment Before Tax OciEquityMethodInvestmentBeforeTax	0	USD
	us-gaap	Oci Equity Method Investment Before Tax OciEquityMethodInvestmentBeforeTax	-3419000	USD
	us-gaap	Oci Equity Method Investment Before Tax OciEquityMethodInvestmentBeforeTax	0	USD
CY2021Q2	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	779000	USD
CY2020Q2	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	2368000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	5025000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	6401000	USD
CY2021Q2	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Before Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax	-2555000	USD
CY2020Q2	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Before Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax	-3820000	USD
	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Before Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax	7591000	USD
	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Before Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax	-3823000	USD
CY2021Q2	us-gaap	Other Comprehensive Income Loss Before Tax OtherComprehensiveIncomeLossBeforeTax	-3535000	USD
CY2020Q2	us-gaap	Other Comprehensive Income Loss Before Tax OtherComprehensiveIncomeLossBeforeTax	35590000	USD
	us-gaap	Other Comprehensive Income Loss Before Tax OtherComprehensiveIncomeLossBeforeTax	-18178000	USD
	us-gaap	Other Comprehensive Income Loss Before Tax OtherComprehensiveIncomeLossBeforeTax	-8649000	USD
CY2021Q2	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	-7000	USD
CY2020Q2	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	101000	USD
	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	-44000	USD
	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	-14000	USD
CY2021Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-3528000	USD
CY2020Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	35489000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-18134000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-8635000	USD
CY2021Q2	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	4584000	USD
CY2020Q2	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	44701000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-736000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	21438000	USD
	mhld	Other Comprehensive Income Loss Investments Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossInvestmentsAdjustmentNetOfTaxPortionAttributableToParent	-25725000	USD
CY2021Q2	us-gaap	Stockholders Equity StockholdersEquity	404212000	USD
CY2020Q2	us-gaap	Stockholders Equity StockholdersEquity	530739000	USD
CY2021Q2	us-gaap	Stockholders Equity StockholdersEquity	404212000	USD
CY2020Q2	us-gaap	Stockholders Equity StockholdersEquity	530739000	USD
	us-gaap	Net Income Loss NetIncomeLoss	17398000	USD
	us-gaap	Net Income Loss NetIncomeLoss	30073000	USD
	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	6840000	USD
	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	4004000	USD
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	5722000	USD
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	0	USD
	us-gaap	Gain Loss On Investments GainLossOnInvestments	8950000	USD
	us-gaap	Gain Loss On Investments GainLossOnInvestments	19913000	USD
	us-gaap	Other Than Temporary Impairment Loss Debt Securities Portion Recognized In Earnings OtherThanTemporaryImpairmentLossDebtSecuritiesPortionRecognizedInEarnings	0	USD
	us-gaap	Other Than Temporary Impairment Loss Debt Securities Portion Recognized In Earnings OtherThanTemporaryImpairmentLossDebtSecuritiesPortionRecognizedInEarnings	1506000	USD
	mhld	Foreign Currency Transactionand Other Gain Lossbefore Tax ForeignCurrencyTransactionandOtherGainLossbeforeTax	1954000	USD
	mhld	Foreign Currency Transactionand Other Gain Lossbefore Tax ForeignCurrencyTransactionandOtherGainLossbeforeTax	5902000	USD
	us-gaap	Increase Decrease In Premiums Receivable IncreaseDecreaseInPremiumsReceivable	-4395000	USD
	us-gaap	Increase Decrease In Premiums Receivable IncreaseDecreaseInPremiumsReceivable	10196000	USD
	us-gaap	Increase Decrease In Reinsurance Recoverable IncreaseDecreaseInReinsuranceRecoverable	-6366000	USD
	us-gaap	Increase Decrease In Reinsurance Recoverable IncreaseDecreaseInReinsuranceRecoverable	-4294000	USD
	us-gaap	Increase Decrease In Accrued Investment Income Receivable IncreaseDecreaseInAccruedInvestmentIncomeReceivable	-3290000	USD
	us-gaap	Increase Decrease In Accrued Investment Income Receivable IncreaseDecreaseInAccruedInvestmentIncomeReceivable	-6413000	USD
	us-gaap	Increase Decrease In Deferred Policy Acquisition Costs IncreaseDecreaseInDeferredPolicyAcquisitionCosts	-9101000	USD
	us-gaap	Increase Decrease In Deferred Policy Acquisition Costs IncreaseDecreaseInDeferredPolicyAcquisitionCosts	-13662000	USD
	us-gaap	Increase Decrease In Funds Held Under Reinsurance Agreements IncreaseDecreaseInFundsHeldUnderReinsuranceAgreements	-8672000	USD
	us-gaap	Increase Decrease In Funds Held Under Reinsurance Agreements IncreaseDecreaseInFundsHeldUnderReinsuranceAgreements	13416000	USD
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	1133000	USD
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	9316000	USD
	us-gaap	Increase Decrease In Liability For Claims And Claims Adjustment Expense Reserve IncreaseDecreaseInLiabilityForClaimsAndClaimsAdjustmentExpenseReserve	-207565000	USD
	us-gaap	Increase Decrease In Liability For Claims And Claims Adjustment Expense Reserve IncreaseDecreaseInLiabilityForClaimsAndClaimsAdjustmentExpenseReserve	-361082000	USD
	us-gaap	Increase Decrease In Unearned Premiums IncreaseDecreaseInUnearnedPremiums	-25340000	USD
	us-gaap	Increase Decrease In Unearned Premiums IncreaseDecreaseInUnearnedPremiums	-37634000	USD
	us-gaap	Increase Decrease In Accrued Liabilities And Other Operating Liabilities IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities	8818000	USD
	us-gaap	Increase Decrease In Accrued Liabilities And Other Operating Liabilities IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities	-21645000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-185784000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-419152000	USD
	us-gaap	Payments To Acquire Marketable Securities PaymentsToAcquireMarketableSecurities	91585000	USD
	us-gaap	Payments To Acquire Marketable Securities PaymentsToAcquireMarketableSecurities	245331000	USD
	us-gaap	Payments To Acquire Other Investments PaymentsToAcquireOtherInvestments	21852000	USD
	us-gaap	Payments To Acquire Other Investments PaymentsToAcquireOtherInvestments	4475000	USD
	us-gaap	Payments To Acquire Equity Method Investments PaymentsToAcquireEquityMethodInvestments	21309000	USD
	us-gaap	Payments To Acquire Equity Method Investments PaymentsToAcquireEquityMethodInvestments	0	USD
	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	206354000	USD
	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	405501000	USD
CY2020Q2	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	137453000	USD
	mhld	Proceeds From Maturities Prepayments And Calls Of Debt Securities Investing Activities ProceedsFromMaturitiesPrepaymentsAndCallsOfDebtSecuritiesInvestingActivities	175363000	USD
	mhld	Proceeds From Maturities Prepayments And Calls Of Debt Securities Investing Activities ProceedsFromMaturitiesPrepaymentsAndCallsOfDebtSecuritiesInvestingActivities	292780000	USD
	us-gaap	Proceeds From Sale And Maturity Of Other Investments ProceedsFromSaleAndMaturityOfOtherInvestments	228000	USD
	us-gaap	Proceeds From Sale And Maturity Of Other Investments ProceedsFromSaleAndMaturityOfOtherInvestments	92000	USD
	us-gaap	Proceeds From Sale Of Equity Method Investments ProceedsFromSaleOfEquityMethodInvestments	3384000	USD
	us-gaap	Proceeds From Sale Of Equity Method Investments ProceedsFromSaleOfEquityMethodInvestments	0	USD
	mhld	Proceeds From Equity Securities Distribution ProceedsFromEquitySecuritiesDistribution	441000	USD
	mhld	Proceeds From Equity Securities Distribution ProceedsFromEquitySecuritiesDistribution	0	USD
	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	19000	USD
	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	598000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	251005000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	447969000	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	2359000	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	1000	USD
	us-gaap	Payments For Repurchase Of Preferred Stock And Preference Stock PaymentsForRepurchaseOfPreferredStockAndPreferenceStock	124658000	USD
	us-gaap	Payments For Repurchase Of Preferred Stock And Preference Stock PaymentsForRepurchaseOfPreferredStockAndPreferenceStock	0	USD
	mhld	Payments For Share Based Payment Arrangement Settlement PaymentsForShareBasedPaymentArrangementSettlement	166000	USD
	mhld	Payments For Share Based Payment Arrangement Settlement PaymentsForShareBasedPaymentArrangementSettlement	0	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-127183000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-1000	USD
	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-107000	USD
	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1359000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-62069000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	30175000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	135826000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	107278000	USD
CY2021Q2	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	73757000	USD
CY2020Q2	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	137453000	USD
CY2021Q2	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	42109000	USD
CY2020Q2	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	56583000	USD
CY2021Q2	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	31648000	USD
CY2020Q2	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	80870000	USD
CY2021Q2	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	73757000	USD
	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	2	segment
CY2021Q2	us-gaap	Premiums Written Gross PremiumsWrittenGross	3434000	USD
CY2021Q2	us-gaap	Premiums Written Net PremiumsWrittenNet	3261000	USD
CY2021Q2	us-gaap	Premiums Earned Net PremiumsEarnedNet	13312000	USD
CY2021Q2	us-gaap	Other Income OtherIncome	539000	USD
CY2021Q2	us-gaap	Policyholder Benefits And Claims Incurred Net PolicyholderBenefitsAndClaimsIncurredNet	-5327000	USD
CY2021Q2	us-gaap	Deferred Policy Acquisition Cost Amortization Expense DeferredPolicyAcquisitionCostAmortizationExpense	6899000	USD
CY2021Q2	us-gaap	Operating Expenses OperatingExpenses	3808000	USD
CY2021Q2	mhld	Underwriting Income Loss Net UnderwritingIncomeLossNet	8471000	USD
CY2021Q2	mhld	Investment Income And Gain Loss On Investments Net InvestmentIncomeAndGainLossOnInvestmentsNet	8127000	USD
CY2021Q2	us-gaap	Interest Expense Debt InterestExpenseDebt	4832000	USD
CY2021Q2	mhld	Foreign Currency Transactionand Other Gain Lossbefore Tax ForeignCurrencyTransactionandOtherGainLossbeforeTax	-1588000	USD
CY2021Q2	us-gaap	Other General And Administrative Expense OtherGeneralAndAdministrativeExpense	5098000	USD
CY2021Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-257000	USD
CY2021Q2	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	2775000	USD
CY2021Q2	us-gaap	Net Income Loss NetIncomeLoss	8112000	USD
CY2021Q2	us-gaap	Loss Ratio LossRatio	-0.385
CY2021Q2	us-gaap	Acquisition Cost Ratio AcquisitionCostRatio	0.498
CY2021Q2	us-gaap	General And Administrative Expense Ratio GeneralAndAdministrativeExpenseRatio	0.643
CY2021Q2	mhld	Expense Ratio ExpenseRatio	1.141
CY2021Q2	us-gaap	Combined Ratio CombinedRatio	0.756
CY2020Q2	us-gaap	Premiums Written Gross PremiumsWrittenGross	4982000	USD
CY2020Q2	us-gaap	Premiums Written Net PremiumsWrittenNet	4090000	USD
CY2020Q2	us-gaap	Premiums Earned Net PremiumsEarnedNet	21308000	USD
CY2020Q2	us-gaap	Other Income OtherIncome	250000	USD
CY2020Q2	us-gaap	Policyholder Benefits And Claims Incurred Net PolicyholderBenefitsAndClaimsIncurredNet	11008000	USD
CY2020Q2	us-gaap	Deferred Policy Acquisition Cost Amortization Expense DeferredPolicyAcquisitionCostAmortizationExpense	8154000	USD
CY2020Q2	us-gaap	Operating Expenses OperatingExpenses	2413000	USD
CY2020Q2	mhld	Underwriting Income Loss Net UnderwritingIncomeLossNet	-17000	USD
CY2020Q2	mhld	Investment Income And Gain Loss On Investments Net InvestmentIncomeAndGainLossOnInvestmentsNet	23184000	USD
CY2020Q2	us-gaap	Interest Expense Debt InterestExpenseDebt	4830000	USD
CY2020Q2	mhld	Foreign Currency Transactionand Other Gain Lossbefore Tax ForeignCurrencyTransactionandOtherGainLossbeforeTax	-2295000	USD
CY2020Q2	us-gaap	Other General And Administrative Expense OtherGeneralAndAdministrativeExpense	6848000	USD
CY2020Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-18000	USD
CY2020Q2	us-gaap	Net Income Loss NetIncomeLoss	9212000	USD
CY2020Q2	us-gaap	Loss Ratio LossRatio	0.510
CY2020Q2	us-gaap	Acquisition Cost Ratio AcquisitionCostRatio	0.378
CY2020Q2	us-gaap	General And Administrative Expense Ratio GeneralAndAdministrativeExpenseRatio	0.430
CY2020Q2	mhld	Expense Ratio ExpenseRatio	0.808
CY2020Q2	us-gaap	Combined Ratio CombinedRatio	1.318
	us-gaap	Premiums Written Gross PremiumsWrittenGross	1044000	USD
	us-gaap	Premiums Written Net PremiumsWrittenNet	565000	USD
	us-gaap	Premiums Earned Net PremiumsEarnedNet	25076000	USD
	us-gaap	Other Income OtherIncome	808000	USD
	us-gaap	Policyholder Benefits And Claims Incurred Net PolicyholderBenefitsAndClaimsIncurredNet	-2968000	USD
	us-gaap	Deferred Policy Acquisition Cost Amortization Expense DeferredPolicyAcquisitionCostAmortizationExpense	12841000	USD
	us-gaap	Operating Expenses OperatingExpenses	5985000	USD
	mhld	Underwriting Income Loss Net UnderwritingIncomeLossNet	10026000	USD
	mhld	Investment Income And Gain Loss On Investments Net InvestmentIncomeAndGainLossOnInvestmentsNet	26069000	USD
	us-gaap	Interest Expense Debt InterestExpenseDebt	9663000	USD
	mhld	Foreign Currency Transactionand Other Gain Lossbefore Tax ForeignCurrencyTransactionandOtherGainLossbeforeTax	1954000	USD
	us-gaap	Other General And Administrative Expense OtherGeneralAndAdministrativeExpense	16918000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-208000	USD
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	5722000	USD
	us-gaap	Net Income Loss NetIncomeLoss	17398000	USD
	us-gaap	Loss Ratio LossRatio	-0.115
	us-gaap	Acquisition Cost Ratio AcquisitionCostRatio	0.496
	us-gaap	General And Administrative Expense Ratio GeneralAndAdministrativeExpenseRatio	0.885
	mhld	Expense Ratio ExpenseRatio	1.381
	us-gaap	Combined Ratio CombinedRatio	1.266
	us-gaap	Premiums Written Gross PremiumsWrittenGross	16716000	USD
	us-gaap	Premiums Written Net PremiumsWrittenNet	14462000	USD
	us-gaap	Premiums Earned Net PremiumsEarnedNet	52523000	USD
	us-gaap	Other Income OtherIncome	658000	USD
	us-gaap	Policyholder Benefits And Claims Incurred Net PolicyholderBenefitsAndClaimsIncurredNet	32094000	USD
	us-gaap	Deferred Policy Acquisition Cost Amortization Expense DeferredPolicyAcquisitionCostAmortizationExpense	20127000	USD
	us-gaap	Operating Expenses OperatingExpenses	4670000	USD
	mhld	Underwriting Income Loss Net UnderwritingIncomeLossNet	-3710000	USD
	mhld	Investment Income And Gain Loss On Investments Net InvestmentIncomeAndGainLossOnInvestmentsNet	52186000	USD
	us-gaap	Other Than Temporary Impairment Loss Debt Securities Portion Recognized In Earnings OtherThanTemporaryImpairmentLossDebtSecuritiesPortionRecognizedInEarnings	1506000	USD
	us-gaap	Interest Expense Debt InterestExpenseDebt	9661000	USD
	mhld	Foreign Currency Transactionand Other Gain Lossbefore Tax ForeignCurrencyTransactionandOtherGainLossbeforeTax	5902000	USD
	us-gaap	Other General And Administrative Expense OtherGeneralAndAdministrativeExpense	13141000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-3000	USD
	us-gaap	Net Income Loss NetIncomeLoss	30073000	USD
	us-gaap	Loss Ratio LossRatio	0.604
	us-gaap	Acquisition Cost Ratio AcquisitionCostRatio	0.378
	us-gaap	General And Administrative Expense Ratio GeneralAndAdministrativeExpenseRatio	0.335
	mhld	Expense Ratio ExpenseRatio	0.713
	us-gaap	Combined Ratio CombinedRatio	1.317
CY2021Q2	us-gaap	Assets Assets	2606770000	USD
CY2020Q4	us-gaap	Assets Assets	2948455000	USD
CY2021Q2	us-gaap	Premiums Written Net PremiumsWrittenNet	3261000	USD
CY2020Q2	us-gaap	Premiums Written Net PremiumsWrittenNet	4090000	USD
	us-gaap	Premiums Written Net PremiumsWrittenNet	565000	USD
	us-gaap	Premiums Written Net PremiumsWrittenNet	14462000	USD
CY2021Q2	us-gaap	Premiums Earned Net PremiumsEarnedNet	13312000	USD
CY2021Q2	mhld	Premiums Earned Net As Percent Of Total PremiumsEarnedNetAsPercentOfTotal	1.000
CY2020Q2	us-gaap	Premiums Earned Net PremiumsEarnedNet	21308000	USD
CY2020Q2	mhld	Premiums Earned Net As Percent Of Total PremiumsEarnedNetAsPercentOfTotal	1.000
	us-gaap	Premiums Earned Net PremiumsEarnedNet	25076000	USD
	mhld	Premiums Earned Net As Percent Of Total PremiumsEarnedNetAsPercentOfTotal	1.000
	us-gaap	Premiums Earned Net PremiumsEarnedNet	52523000	USD
	mhld	Premiums Earned Net As Percent Of Total PremiumsEarnedNetAsPercentOfTotal	1.000
CY2021Q2	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	911547000	USD
CY2021Q2	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	32200000	USD
CY2021Q2	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	5062000	USD
CY2021Q2	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	938685000	USD
CY2020Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	1163923000	USD
CY2020Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	53055000	USD
CY2020Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	3567000	USD
CY2020Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	1213411000	USD
CY2021Q2	us-gaap	Available For Sale Securities Debt Maturities Within One Year Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost	60592000	USD
CY2021Q2	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	59782000	USD
CY2021Q2	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost	435090000	USD
CY2021Q2	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	454445000	USD
CY2021Q2	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost	65363000	USD
CY2021Q2	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	68361000	USD
CY2021Q2	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost	7334000	USD
CY2021Q2	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue	7352000	USD
CY2021Q2	us-gaap	Available For Sale Securities Debt Maturities Single Maturity Date Amortized Cost Basis AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasis	568379000	USD
CY2021Q2	us-gaap	Available For Sale Securities Debt Maturities Single Maturity Date AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDate	589940000	USD
CY2021Q2	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	911547000	USD
CY2021Q2	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	938685000	USD
CY2021Q2	mhld	Fixed Maturities Continuous Unrealized Loss Position Lessthan Twelve Months Fair Value FixedMaturitiesContinuousUnrealizedLossPositionLessthanTwelveMonthsFairValue	165138000	USD
CY2021Q2	mhld	Fixed Maturities Continuous Unrealized Loss Position Lessthan12 Months Accumulated Loss FixedMaturitiesContinuousUnrealizedLossPositionLessthan12MonthsAccumulatedLoss	1969000	USD
CY2021Q2	mhld	Fixed Maturities Continuous Unrealized Loss Position Twelve Monthsor Longer Fair Value FixedMaturitiesContinuousUnrealizedLossPositionTwelveMonthsorLongerFairValue	64763000	USD
CY2021Q2	mhld	Fixed Maturities Continuous Unrealized Loss Position12 Monthsor Longer Accumulated Loss FixedMaturitiesContinuousUnrealizedLossPosition12MonthsorLongerAccumulatedLoss	3093000	USD
CY2021Q2	mhld	Fixed Maturities Continuous Unrealized Loss Position Fair Value FixedMaturitiesContinuousUnrealizedLossPositionFairValue	229901000	USD
CY2021Q2	mhld	Fixed Maturities Continuous Unrealized Loss Position Accumulated Loss FixedMaturitiesContinuousUnrealizedLossPositionAccumulatedLoss	5062000	USD
CY2021Q2	mhld	Fixed Securitiesin Unrealized Loss Positions Qualitative Disclosure Numberof Positions FixedSecuritiesinUnrealizedLossPositionsQualitativeDisclosureNumberofPositions	45	security
CY2021Q2	mhld	Investments Continuous Unrealized Loss Position Fair Value InvestmentsContinuousUnrealizedLossPositionFairValue	229901000	USD
CY2021Q2	mhld	Investments Continuous Unrealized Loss Position Accumulated Loss InvestmentsContinuousUnrealizedLossPositionAccumulatedLoss	5062000	USD
CY2021Q2	mhld	Fixed Securitiesin Unrealized Loss Positions Qualitative Disclosure Numberof Positions Greaterthanor Equalto One Year FixedSecuritiesinUnrealizedLossPositionsQualitativeDisclosureNumberofPositionsGreaterthanorEqualtoOneYear	18	security
CY2021Q2	mhld	Investments Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value InvestmentsContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	64763000	USD
CY2021Q2	mhld	Investments Continuous Unrealized Loss Position12 Months Or Longer Aggregate Losses InvestmentsContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLosses	3093000	USD
CY2020Q4	mhld	Fixed Maturities Continuous Unrealized Loss Position Lessthan Twelve Months Fair Value FixedMaturitiesContinuousUnrealizedLossPositionLessthanTwelveMonthsFairValue	64570000	USD
CY2020Q4	mhld	Fixed Maturities Continuous Unrealized Loss Position Lessthan12 Months Accumulated Loss FixedMaturitiesContinuousUnrealizedLossPositionLessthan12MonthsAccumulatedLoss	1192000	USD
CY2020Q4	mhld	Fixed Maturities Continuous Unrealized Loss Position Twelve Monthsor Longer Fair Value FixedMaturitiesContinuousUnrealizedLossPositionTwelveMonthsorLongerFairValue	101994000	USD
CY2020Q4	mhld	Fixed Maturities Continuous Unrealized Loss Position12 Monthsor Longer Accumulated Loss FixedMaturitiesContinuousUnrealizedLossPosition12MonthsorLongerAccumulatedLoss	2375000	USD
CY2020Q4	mhld	Fixed Maturities Continuous Unrealized Loss Position Fair Value FixedMaturitiesContinuousUnrealizedLossPositionFairValue	166564000	USD
CY2020Q4	mhld	Fixed Maturities Continuous Unrealized Loss Position Accumulated Loss FixedMaturitiesContinuousUnrealizedLossPositionAccumulatedLoss	3567000	USD
CY2020Q4	mhld	Fixed Securitiesin Unrealized Loss Positions Qualitative Disclosure Numberof Positions FixedSecuritiesinUnrealizedLossPositionsQualitativeDisclosureNumberofPositions	53	security
CY2020Q4	mhld	Investments Continuous Unrealized Loss Position Fair Value InvestmentsContinuousUnrealizedLossPositionFairValue	166564000	USD
CY2020Q4	mhld	Investments Continuous Unrealized Loss Position Accumulated Loss InvestmentsContinuousUnrealizedLossPositionAccumulatedLoss	3567000	USD
CY2020Q4	mhld	Fixed Securitiesin Unrealized Loss Positions Qualitative Disclosure Numberof Positions Greaterthanor Equalto One Year FixedSecuritiesinUnrealizedLossPositionsQualitativeDisclosureNumberofPositionsGreaterthanorEqualtoOneYear	35	security
CY2020Q4	mhld	Investments Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value InvestmentsContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	101994000	USD
CY2020Q4	mhld	Investments Continuous Unrealized Loss Position12 Months Or Longer Aggregate Losses InvestmentsContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLosses	2375000	USD
	us-gaap	Other Than Temporary Impairment Loss Debt Securities Portion Recognized In Earnings OtherThanTemporaryImpairmentLossDebtSecuritiesPortionRecognizedInEarnings	1506000	USD
	mhld	Other Than Temporary Impairment Losses Investments Availableforsale Securities Portion Recognized In Earnings Net Qualitative Disclosures Number Of Securities OtherThanTemporaryImpairmentLossesInvestmentsAvailableforsaleSecuritiesPortionRecognizedInEarningsNetQualitativeDisclosuresNumberOfSecurities	2	security
	us-gaap	Other Than Temporary Impairment Loss Debt Securities Portion Recognized In Earnings OtherThanTemporaryImpairmentLossDebtSecuritiesPortionRecognizedInEarnings	0	USD
CY2020Q2	us-gaap	Other Than Temporary Impairment Loss Debt Securities Portion Recognized In Earnings OtherThanTemporaryImpairmentLossDebtSecuritiesPortionRecognizedInEarnings	0	USD
CY2021Q2	us-gaap	Other Than Temporary Impairment Loss Debt Securities Portion Recognized In Earnings OtherThanTemporaryImpairmentLossDebtSecuritiesPortionRecognizedInEarnings	0	USD
CY2021Q2	mhld	Fixed Maturities Amortized Cost Basis FixedMaturitiesAmortizedCostBasis	911547000	USD
CY2021Q2	mhld	Fixed Maturities Fair Value FixedMaturitiesFairValue	938685000	USD
CY2021Q2	mhld	Fixed Maturities Percentof Total Fair Value FixedMaturitiesPercentofTotalFairValue	1.000
CY2020Q4	mhld	Fixed Maturities Amortized Cost Basis FixedMaturitiesAmortizedCostBasis	1163923000	USD
CY2020Q4	mhld	Fixed Maturities Fair Value FixedMaturitiesFairValue	1213411000	USD
CY2020Q4	mhld	Fixed Maturities Percentof Total Fair Value FixedMaturitiesPercentofTotalFairValue	1.000
CY2021Q2	us-gaap	Other Investment Not Readily Marketable Fair Value OtherInvestmentNotReadilyMarketableFairValue	51752000	USD
CY2021Q2	mhld	Other Investments Percent Of Total Fair Value OtherInvestmentsPercentOfTotalFairValue	0.586
CY2020Q4	us-gaap	Other Investment Not Readily Marketable Fair Value OtherInvestmentNotReadilyMarketableFairValue	30439000	USD
CY2020Q4	mhld	Other Investments Percent Of Total Fair Value OtherInvestmentsPercentOfTotalFairValue	0.454
CY2021Q2	us-gaap	Other Investments OtherInvestments	88238000	USD
CY2021Q2	mhld	Other Investments Percent Of Total OtherInvestmentsPercentOfTotal	1.000
CY2020Q4	us-gaap	Other Investments OtherInvestments	67010000	USD
CY2020Q4	mhld	Other Investments Percent Of Total OtherInvestmentsPercentOfTotal	1.000
CY2021Q2	us-gaap	Fair Value Investments Entities That Calculate Net Asset Value Per Share Unfunded Committments FairValueInvestmentsEntitiesThatCalculateNetAssetValuePerShareUnfundedCommittments	66351000	USD
CY2021Q2	mhld	Fair Value Investments Entities That Calculate Net Asset Value Per Share Unfunded Commitments Percentage Of Total FairValueInvestmentsEntitiesThatCalculateNetAssetValuePerShareUnfundedCommitmentsPercentageOfTotal	1.000
CY2020Q4	us-gaap	Fair Value Investments Entities That Calculate Net Asset Value Per Share Unfunded Committments FairValueInvestmentsEntitiesThatCalculateNetAssetValuePerShareUnfundedCommittments	63313000	USD
CY2020Q4	mhld	Fair Value Investments Entities That Calculate Net Asset Value Per Share Unfunded Commitments Percentage Of Total FairValueInvestmentsEntitiesThatCalculateNetAssetValuePerShareUnfundedCommitmentsPercentageOfTotal	1.000
CY2021Q2	us-gaap	Equity Method Investments EquityMethodInvestments	60113000	USD
	us-gaap	Investment Income Net InvestmentIncomeNet	17119000	USD
CY2021Q2	mhld	Equity Method Investments Percent Of Total EquityMethodInvestmentsPercentOfTotal	1.000
CY2020Q4	us-gaap	Equity Method Investments EquityMethodInvestments	39886000	USD
CY2020Q4	mhld	Equity Method Investments Percent Of Total EquityMethodInvestmentsPercentOfTotal	1.000
CY2021Q2	us-gaap	Investment Income Interest And Dividend InvestmentIncomeInterestAndDividend	8083000	USD
CY2020Q2	us-gaap	Investment Income Interest And Dividend InvestmentIncomeInterestAndDividend	14663000	USD
	us-gaap	Investment Income Interest And Dividend InvestmentIncomeInterestAndDividend	18268000	USD
	us-gaap	Investment Income Interest And Dividend InvestmentIncomeInterestAndDividend	33028000	USD
CY2021Q2	us-gaap	Investment Income Investment Expense InvestmentIncomeInvestmentExpense	805000	USD
CY2020Q2	us-gaap	Investment Income Investment Expense InvestmentIncomeInvestmentExpense	354000	USD
	us-gaap	Investment Income Investment Expense InvestmentIncomeInvestmentExpense	1149000	USD
	us-gaap	Investment Income Investment Expense InvestmentIncomeInvestmentExpense	755000	USD
CY2021Q2	us-gaap	Investment Income Net InvestmentIncomeNet	7278000	USD
CY2020Q2	us-gaap	Investment Income Net InvestmentIncomeNet	14309000	USD
	us-gaap	Investment Income Net InvestmentIncomeNet	32273000	USD
CY2021Q2	mhld	Equity Securities Fvni Realized And Unrealized Gain EquitySecuritiesFVNIRealizedAndUnrealizedGain	0	USD
CY2021Q2	mhld	Equity Securities Fvni Realized And Unrealized Loss EquitySecuritiesFVNIRealizedAndUnrealizedLoss	611000	USD
CY2021Q2	us-gaap	Equity Securities Fv Ni Gain Loss EquitySecuritiesFvNiGainLoss	-611000	USD
CY2021Q2	mhld	Realized And Unrealized Gain On Investments RealizedAndUnrealizedGainOnInvestments	1555000	USD
CY2021Q2	mhld	Realized And Unrealized Loss On Investments RealizedAndUnrealizedLossOnInvestments	706000	USD
CY2021Q2	us-gaap	Gain Loss On Investments GainLossOnInvestments	849000	USD
CY2020Q2	mhld	Realized And Unrealized Gain On Investments RealizedAndUnrealizedGainOnInvestments	9059000	USD
CY2020Q2	mhld	Realized And Unrealized Loss On Investments RealizedAndUnrealizedLossOnInvestments	184000	USD
CY2020Q2	us-gaap	Gain Loss On Investments GainLossOnInvestments	8875000	USD
	mhld	Equity Securities Fvni Realized And Unrealized Gain EquitySecuritiesFVNIRealizedAndUnrealizedGain	4957000	USD
	mhld	Equity Securities Fvni Realized And Unrealized Loss EquitySecuritiesFVNIRealizedAndUnrealizedLoss	611000	USD
	us-gaap	Equity Securities Fv Ni Gain Loss EquitySecuritiesFvNiGainLoss	4346000	USD
	mhld	Realized And Unrealized Gain On Investments RealizedAndUnrealizedGainOnInvestments	9830000	USD
	mhld	Realized And Unrealized Loss On Investments RealizedAndUnrealizedLossOnInvestments	880000	USD
	us-gaap	Gain Loss On Investments GainLossOnInvestments	8950000	USD
	mhld	Realized And Unrealized Gain On Investments RealizedAndUnrealizedGainOnInvestments	20098000	USD
	mhld	Realized And Unrealized Loss On Investments RealizedAndUnrealizedLossOnInvestments	185000	USD
	us-gaap	Gain Loss On Investments GainLossOnInvestments	19913000	USD
CY2021Q2	us-gaap	Equity Securities Fv Ni Gain Loss EquitySecuritiesFvNiGainLoss	-611000	USD
CY2020Q2	us-gaap	Equity Securities Fv Ni Gain Loss EquitySecuritiesFvNiGainLoss	0	USD
	us-gaap	Equity Securities Fv Ni Gain Loss EquitySecuritiesFvNiGainLoss	4346000	USD
	us-gaap	Equity Securities Fv Ni Gain Loss EquitySecuritiesFvNiGainLoss	0	USD
CY2021Q2	us-gaap	Equity Securities Fv Ni Realized Gain Loss EquitySecuritiesFvNiRealizedGainLoss	0	USD
CY2020Q2	us-gaap	Equity Securities Fv Ni Realized Gain Loss EquitySecuritiesFvNiRealizedGainLoss	0	USD
	us-gaap	Equity Securities Fv Ni Realized Gain Loss EquitySecuritiesFvNiRealizedGainLoss	441000	USD
	us-gaap	Equity Securities Fv Ni Realized Gain Loss EquitySecuritiesFvNiRealizedGainLoss	0	USD
CY2021Q2	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	-611000	USD
CY2020Q2	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	0	USD
	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	3905000	USD
	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	0	USD
CY2021Q2	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	52538000	USD
	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	206354000	USD
CY2020Q2	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	181030000	USD
	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	405501000	USD
CY2021Q2	mhld	Equity Method Investment Unrealized Gain Loss EquityMethodInvestmentUnrealizedGainLoss	-3419000	USD
CY2020Q4	mhld	Equity Method Investment Unrealized Gain Loss EquityMethodInvestmentUnrealizedGainLoss	0	USD
CY2021Q2	mhld	Investments Unrealized Gain Loss Gross Of Deferred Income Tax Expense InvestmentsUnrealizedGainLossGrossOfDeferredIncomeTaxExpense	23719000	USD
CY2020Q4	mhld	Investments Unrealized Gain Loss Gross Of Deferred Income Tax Expense InvestmentsUnrealizedGainLossGrossOfDeferredIncomeTaxExpense	49488000	USD
CY2021Q2	us-gaap	Deferred Tax Liabilities Deferred Expense DeferredTaxLiabilitiesDeferredExpense	87000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Deferred Expense DeferredTaxLiabilitiesDeferredExpense	131000	USD
CY2021Q2	mhld	Investments Gross Unrealized Gain Loss Net Of Deferred Income Tax Expense InvestmentsGrossUnrealizedGainLossNetOfDeferredIncomeTaxExpense	23632000	USD
CY2020Q4	mhld	Investments Gross Unrealized Gain Loss Net Of Deferred Income Tax Expense InvestmentsGrossUnrealizedGainLossNetOfDeferredIncomeTaxExpense	49357000	USD
	mhld	Other Comprehensive Income Loss Investments Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossInvestmentsAdjustmentNetOfTaxPortionAttributableToParent	-25725000	USD
CY2020	mhld	Other Comprehensive Income Loss Investments Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossInvestmentsAdjustmentNetOfTaxPortionAttributableToParent	27361000	USD
CY2021Q2	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	31648000	USD
CY2020Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	61786000	USD
CY2021Q2	us-gaap	Restricted Investments RestrictedInvestments	791489000	USD
CY2020Q4	us-gaap	Restricted Investments RestrictedInvestments	1018269000	USD
CY2021Q2	us-gaap	Restricted Cash And Investments RestrictedCashAndInvestments	823137000	USD
CY2020Q4	us-gaap	Restricted Cash And Investments RestrictedCashAndInvestments	1080055000	USD
CY2021Q2	mhld	Assets Fair Value Disclosure Number Of Securities Priced For Fair Value AssetsFairValueDisclosureNumberOfSecuritiesPricedForFairValue	1	security
CY2020Q4	mhld	Assets Fair Value Disclosure Number Of Securities Priced For Fair Value AssetsFairValueDisclosureNumberOfSecuritiesPricedForFairValue	2	security
CY2021Q1	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	29344000	USD
CY2020Q1	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	1800000	USD
CY2020Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	26094000	USD
CY2019Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	1800000	USD
CY2021Q2	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Purchases FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases	0	USD
CY2020Q2	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Purchases FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases	1000000	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Purchases FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases	4250000	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Purchases FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases	1000000	USD
CY2021Q2	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Out Of Level3 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3	0	USD
CY2020Q2	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Out Of Level3 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3	0	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Out Of Level3 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3	1000000	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Out Of Level3 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3	0	USD
CY2021Q2	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	29344000	USD
CY2020Q2	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	2800000	USD
CY2021Q2	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	29344000	USD
CY2020Q2	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	2800000	USD
CY2021Q2	mhld	Share Capital Shares Authorized ShareCapitalSharesAuthorized	150000000	shares
CY2021Q2	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	92233783	shares
CY2021Q2	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	86420221	shares
CY2021Q2	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	18600000	shares
CY2021Q2	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	18600000	shares
CY2021Q2	mhld	Shares Undesignated SharesUndesignated	39166217	shares
CY2021Q2	mhld	Preferred Stock Shares Outstanding Held By Non Affiliates PreferredStockSharesOutstandingHeldByNonAffiliates	7255368	shares
CY2021Q2	us-gaap	Stock Redeemed Or Called During Period Shares StockRedeemedOrCalledDuringPeriodShares	1902544	shares
CY2021Q2	mhld	Preferred Stock Redemption Price Average Cost Per Share PreferredStockRedemptionPriceAverageCostPerShare	14.33
	us-gaap	Stock Redeemed Or Called During Period Shares StockRedeemedOrCalledDuringPeriodShares	8517037	shares
	mhld	Preferred Stock Redemption Price Average Cost Per Share PreferredStockRedemptionPriceAverageCostPerShare	14.64
CY2021Q2	us-gaap	Payments For Repurchase Of Preferred Stock And Preference Stock PaymentsForRepurchaseOfPreferredStockAndPreferenceStock	27264000	USD
	us-gaap	Payments For Repurchase Of Preferred Stock And Preference Stock PaymentsForRepurchaseOfPreferredStockAndPreferenceStock	124658000	USD
CY2021Q2	us-gaap	Preferred Stock Redemption Discount PreferredStockRedemptionDiscount	18714000	USD
	us-gaap	Preferred Stock Redemption Discount PreferredStockRedemptionDiscount	81164000	USD
CY2021Q2	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	18600000	shares
CY2020Q4	mhld	Preferred Stock Shares Outstanding Held By Affiliates PreferredStockSharesOutstandingHeldByAffiliates	2827595	shares
CY2021Q1	us-gaap	Stock Redeemed Or Called During Period Shares StockRedeemedOrCalledDuringPeriodShares	6614493	shares
CY2021Q2	us-gaap	Stock Redeemed Or Called During Period Shares StockRedeemedOrCalledDuringPeriodShares	1902544	shares
CY2021Q2	mhld	Preferred Stock Shares Outstanding Held By Affiliates PreferredStockSharesOutstandingHeldByAffiliates	11344632	shares
CY2021Q2	mhld	Preferred Stock Shares Outstanding Held By Non Affiliates PreferredStockSharesOutstandingHeldByNonAffiliates	7255368	shares
CY2021Q2	mhld	Preferred Stock Shares Outstanding Held By Affiliates Percentage PreferredStockSharesOutstandingHeldByAffiliatesPercentage	0.610
	us-gaap	Shares Paid For Tax Withholding For Share Based Compensation SharesPaidForTaxWithholdingForShareBasedCompensation	799548	shares
	us-gaap	Shares Paid For Tax Withholding For Share Based Compensation SharesPaidForTaxWithholdingForShareBasedCompensation	834	shares
	mhld	Shares Paid For Tax Withholding For Share Based Compensation Average Cost Per Share SharesPaidForTaxWithholdingForShareBasedCompensationAverageCostPerShare	2.95
	mhld	Shares Paid For Tax Withholding For Share Based Compensation Average Cost Per Share SharesPaidForTaxWithholdingForShareBasedCompensationAverageCostPerShare	1.13
CY2021Q2	us-gaap	Shares Paid For Tax Withholding For Share Based Compensation SharesPaidForTaxWithholdingForShareBasedCompensation	0	shares
CY2020Q2	us-gaap	Shares Paid For Tax Withholding For Share Based Compensation SharesPaidForTaxWithholdingForShareBasedCompensation	834	shares
CY2020Q2	mhld	Shares Paid For Tax Withholding For Share Based Compensation Average Cost Per Share SharesPaidForTaxWithholdingForShareBasedCompensationAverageCostPerShare	1.13
CY2020Q4	us-gaap	Stock Repurchase Program Remaining Authorized Repurchase Amount1 StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1	74245000	USD
CY2020Q2	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	0	shares
	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	0	shares
	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	0	shares
CY2021Q2	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	0	shares
CY2021Q2	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	-2749000	USD
CY2021Q2	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	779000	USD
CY2021Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-3528000	USD
CY2020Q2	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	37857000	USD
CY2020Q2	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	2368000	USD
	us-gaap	Assumed Premiums Written AssumedPremiumsWritten	6498000	USD
CY2020Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	35489000	USD
	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	-13109000	USD
	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	5025000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-18134000	USD
	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	-2234000	USD
	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	6401000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-8635000	USD
	us-gaap	Direct Premiums Written DirectPremiumsWritten	10531000	USD
	us-gaap	Direct Premiums Written DirectPremiumsWritten	10218000	USD
	us-gaap	Assumed Premiums Written AssumedPremiumsWritten	-9487000	USD
	us-gaap	Ceded Premiums Written CededPremiumsWritten	479000	USD
	us-gaap	Ceded Premiums Written CededPremiumsWritten	2254000	USD
	us-gaap	Premiums Written Net PremiumsWrittenNet	565000	USD
	us-gaap	Premiums Written Net PremiumsWrittenNet	14462000	USD
	us-gaap	Direct Premiums Earned DirectPremiumsEarned	11536000	USD
	us-gaap	Direct Premiums Earned DirectPremiumsEarned	9719000	USD
	us-gaap	Assumed Premiums Earned AssumedPremiumsEarned	14849000	USD
	us-gaap	Assumed Premiums Earned AssumedPremiumsEarned	44631000	USD
	us-gaap	Ceded Premiums Earned CededPremiumsEarned	1309000	USD
	us-gaap	Ceded Premiums Earned CededPremiumsEarned	1827000	USD
	us-gaap	Premiums Earned Net PremiumsEarnedNet	25076000	USD
	us-gaap	Premiums Earned Net PremiumsEarnedNet	52523000	USD
	us-gaap	Policyholder Benefits And Claims Incurred Gross PolicyholderBenefitsAndClaimsIncurredGross	-5862000	USD
	us-gaap	Policyholder Benefits And Claims Incurred Gross PolicyholderBenefitsAndClaimsIncurredGross	32452000	USD
	us-gaap	Reinsurance Costs And Recoveries Net ReinsuranceCostsAndRecoveriesNet	-2894000	USD
	us-gaap	Reinsurance Costs And Recoveries Net ReinsuranceCostsAndRecoveriesNet	358000	USD
	us-gaap	Policyholder Benefits And Claims Incurred Net PolicyholderBenefitsAndClaimsIncurredNet	-2968000	USD
	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Claims Paid Current Year1 LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidCurrentYear1	1832000	USD
	us-gaap	Policyholder Benefits And Claims Incurred Net PolicyholderBenefitsAndClaimsIncurredNet	32094000	USD
CY2021Q2	us-gaap	Reinsurance Recoverable For Unpaid Claims And Claims Adjustments ReinsuranceRecoverableForUnpaidClaimsAndClaimsAdjustments	565549000	USD
CY2020Q4	us-gaap	Reinsurance Recoverable For Unpaid Claims And Claims Adjustments ReinsuranceRecoverableForUnpaidClaimsAndClaimsAdjustments	592571000	USD
CY2020Q4	us-gaap	Reinsurance Recoverables On Unpaid Losses Allowance ReinsuranceRecoverablesOnUnpaidLossesAllowance	0	USD
CY2021Q2	us-gaap	Reinsurance Recoverables On Unpaid Losses Allowance ReinsuranceRecoverablesOnUnpaidLossesAllowance	0	USD
CY2019Q3	us-gaap	Reinsurance Retention Policy Excess Retention Amount Reinsured ReinsuranceRetentionPolicyExcessRetentionAmountReinsured	2178535000	USD
CY2019Q3	us-gaap	Reinsurance Retention Policy Amount Retained ReinsuranceRetentionPolicyAmountRetained	600000000	USD
CY2019Q3	us-gaap	Reinsurance Retention Policy Excess Retention Amount Reinsured ReinsuranceRetentionPolicyExcessRetentionAmountReinsured	2178535000	USD
CY2019Q3	mhld	Reinsurance Recoverable For Paid And Unpaid Claims And Claims Adjustments Adverse Development Cover ReinsuranceRecoverableForPaidAndUnpaidClaimsAndClaimsAdjustmentsAdverseDevelopmentCover	155000000	USD
CY2019Q3	mhld	Reinsurance Recoverable For Paid And Unpaid Claims And Claims Adjustments Ceded Cumulative Losses ReinsuranceRecoverableForPaidAndUnpaidClaimsAndClaimsAdjustmentsCededCumulativeLosses	445000000	USD
CY2021Q2	mhld	Deferred Gain On Reinsurance DeferredGainOnReinsurance	54254000	USD
CY2020Q4	mhld	Deferred Gain On Reinsurance DeferredGainOnReinsurance	74941000	USD
CY2019Q3	mhld	Reinsurance Collateral By Third Party ReinsuranceCollateralByThirdParty	445000000	USD
CY2021Q2	mhld	Reinsurance Collateral By Third Party ReinsuranceCollateralByThirdParty	430552000	USD
	us-gaap	Schedule Of Liability For Unpaid Claims And Claims Adjustment Expense ScheduleOfLiabilityForUnpaidClaimsAndClaimsAdjustmentExpense	The reserve for loss and LAE consists of: <div style="margin-bottom:6pt;margin-top:5pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:99.853%"><tr><td style="width:1.0%"/><td style="width:69.324%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.532%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:12.955%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.532%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:12.957%"/><td style="width:0.1%"/></tr><tr><td colspan="3" style="padding:0 1pt"/><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:700;line-height:100%">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:700;line-height:100%">December 31, 2020</span></td></tr><tr><td colspan="3" style="background-color:#ccffcc;padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="padding-left:9pt;text-indent:-6.75pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Reserve for reported loss and LAE</span></div></td><td colspan="3" style="background-color:#ccffcc;padding:0 1pt"/><td style="background-color:#ccffcc;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%">$</span></td><td style="background-color:#ccffcc;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">906,833 </span></td><td style="background-color:#ccffcc;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ccffcc;padding:0 1pt"/><td style="background-color:#ccffcc;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ccffcc;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%">998,691 </span></td><td style="background-color:#ccffcc;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="padding-left:9pt;text-indent:-6.75pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Reserve for losses incurred but not reported ("IBNR")</span></div></td><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%">767,757 </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%">894,608 </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#ccffcc;padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="padding-left:9pt;text-indent:-6.75pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Reserve for loss and LAE</span></div></td><td colspan="3" style="background-color:#ccffcc;padding:0 1pt"/><td style="background-color:#ccffcc;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%">$</span></td><td style="background-color:#ccffcc;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">1,674,590 </span></td><td style="background-color:#ccffcc;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ccffcc;padding:0 1pt"/><td style="background-color:#ccffcc;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ccffcc;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%">1,893,299 </span></td><td style="background-color:#ccffcc;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr></table></div><div style="text-align:justify;text-indent:13.5pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">The following table represents a reconciliation of our beginning and ending gross and net loss and LAE reserves: </span></div><div style="margin-bottom:6pt;margin-top:5pt"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:99.853%"><tr><td style="width:1.0%"/><td style="width:69.324%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.532%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:12.955%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.532%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:12.957%"/><td style="width:0.1%"/></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:700;line-height:100%">For the Six Months Ended June 30,</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:700;line-height:100%">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:700;line-height:100%">2020</span></td></tr><tr><td colspan="3" style="background-color:#ccffcc;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="padding-left:9pt;text-indent:-6.75pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Gross loss and LAE reserves, January 1</span></div></td><td colspan="3" style="background-color:#ccffcc;padding:0 1pt"/><td style="background-color:#ccffcc;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%">$</span></td><td style="background-color:#ccffcc;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">1,893,299 </span></td><td style="background-color:#ccffcc;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ccffcc;padding:0 1pt"/><td style="background-color:#ccffcc;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ccffcc;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%">2,439,907 </span></td><td style="background-color:#ccffcc;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="padding-left:9pt;text-indent:-6.75pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Less: reinsurance recoverable on unpaid losses, January 1</span></div></td><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%">592,571 </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%">623,422 </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#ccffcc;padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="padding-left:9pt;text-indent:-6.75pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Net loss and LAE reserves, January 1</span></div></td><td colspan="3" style="background-color:#ccffcc;padding:0 1pt"/><td colspan="2" style="background-color:#ccffcc;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%">1,300,728 </span></td><td style="background-color:#ccffcc;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ccffcc;padding:0 1pt"/><td colspan="2" style="background-color:#ccffcc;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%">1,816,485 </span></td><td style="background-color:#ccffcc;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="padding-left:9pt;text-indent:-6.75pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Net incurred losses related to:</span></div></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:0 1pt"/></tr><tr><td colspan="3" style="background-color:#ccffcc;padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="padding-left:20.25pt;text-indent:-6.75pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Current year</span></div></td><td colspan="3" style="background-color:#ccffcc;padding:0 1pt"/><td colspan="2" style="background-color:#ccffcc;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%">15,393 </span></td><td style="background-color:#ccffcc;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ccffcc;padding:0 1pt"/><td colspan="2" style="background-color:#ccffcc;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%">32,687 </span></td><td style="background-color:#ccffcc;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="padding-left:20.25pt;text-indent:-6.75pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Prior years</span></div></td><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%">(18,361)</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%">(593)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#ccffcc;padding:0 1pt"/><td colspan="3" style="background-color:#ccffcc;padding:0 1pt"/><td colspan="2" style="background-color:#ccffcc;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%">(2,968)</span></td><td style="background-color:#ccffcc;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ccffcc;padding:0 1pt"/><td colspan="2" style="background-color:#ccffcc;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%">32,094 </span></td><td style="background-color:#ccffcc;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="padding-left:9pt;text-indent:-6.75pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Net paid losses related to:</span></div></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="3" style="background-color:#ffffff;border-top:1pt solid #000000;padding:0 1pt"/></tr><tr><td colspan="3" style="background-color:#ccffcc;padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="padding-left:20.25pt;text-indent:-6.75pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Current year</span></div></td><td colspan="3" style="background-color:#ccffcc;padding:0 1pt"/><td colspan="2" style="background-color:#ccffcc;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%">8,479 </span></td><td style="background-color:#ccffcc;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ccffcc;padding:0 1pt"/><td colspan="2" style="background-color:#ccffcc;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%">(1,832)</span></td><td style="background-color:#ccffcc;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="padding-left:20.25pt;text-indent:-6.75pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Prior years</span></div></td><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%">(206,708)</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%">(387,023)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#ccffcc;padding:0 1pt"/><td colspan="3" style="background-color:#ccffcc;padding:0 1pt"/><td colspan="2" style="background-color:#ccffcc;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%">(198,229)</span></td><td style="background-color:#ccffcc;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ccffcc;padding:0 1pt"/><td colspan="2" style="background-color:#ccffcc;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%">(388,855)</span></td><td style="background-color:#ccffcc;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="padding-left:9pt;text-indent:-6.75pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Retroactive reinsurance adjustment</span></div></td><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%">20,687 </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%">1,410 </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#ccffcc;padding:2px 1pt;text-align:left;vertical-align:bottom"><div style="padding-left:9pt;text-indent:-6.75pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Effect of foreign exchange rate movements</span></div></td><td colspan="3" style="background-color:#ccffcc;padding:0 1pt"/><td colspan="2" style="background-color:#ccffcc;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%">(11,177)</span></td><td style="background-color:#ccffcc;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ccffcc;padding:0 1pt"/><td colspan="2" style="background-color:#ccffcc;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%">(7,408)</span></td><td style="background-color:#ccffcc;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></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 loss and LAE reserves, June 30</span></td><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%">1,109,041 </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%">1,453,726 </span></td><td style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#ccffcc;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%">Reinsurance recoverable on unpaid losses, June 30</span></td><td colspan="3" style="background-color:#ccffcc;padding:0 1pt"/><td colspan="2" style="background-color:#ccffcc;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%">565,549 </span></td><td style="background-color:#ccffcc;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ccffcc;padding:0 1pt"/><td colspan="2" style="background-color:#ccffcc;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%">617,496 </span></td><td style="background-color:#ccffcc;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></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%">Gross loss and LAE reserves, June 30</span></td><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><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:10pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">1,674,590 </span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">$</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:10pt;font-weight:400;line-height:100%">2,071,222 </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"/></tr></table></div>
CY2021Q2	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Reported Claims Amount LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseReportedClaimsAmount	906833000	USD
CY2020Q4	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Reported Claims Amount LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseReportedClaimsAmount	998691000	USD
CY2021Q2	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Incurred But Not Reported Ibnr Claims Amount LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseIncurredButNotReportedIBNRClaimsAmount	767757000	USD
CY2020Q4	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Incurred But Not Reported Ibnr Claims Amount LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseIncurredButNotReportedIBNRClaimsAmount	894608000	USD
CY2021Q2	us-gaap	Liability For Claims And Claims Adjustment Expense LiabilityForClaimsAndClaimsAdjustmentExpense	1674590000	USD
CY2020Q4	us-gaap	Liability For Claims And Claims Adjustment Expense LiabilityForClaimsAndClaimsAdjustmentExpense	1893299000	USD
CY2020Q4	us-gaap	Liability For Claims And Claims Adjustment Expense LiabilityForClaimsAndClaimsAdjustmentExpense	1893299000	USD
CY2019Q4	us-gaap	Liability For Claims And Claims Adjustment Expense LiabilityForClaimsAndClaimsAdjustmentExpense	2439907000	USD
CY2020Q4	us-gaap	Reinsurance Recoverables ReinsuranceRecoverables	592571000	USD
CY2019Q4	us-gaap	Reinsurance Recoverables ReinsuranceRecoverables	623422000	USD
CY2020Q4	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Net LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseNet	1300728000	USD
CY2019Q4	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Net LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseNet	1816485000	USD
	us-gaap	Supplemental Information For Property Casualty Insurance Underwriters Current Year Claims And Claims Adjustment Expense SupplementalInformationForPropertyCasualtyInsuranceUnderwritersCurrentYearClaimsAndClaimsAdjustmentExpense	15393000	USD
	us-gaap	Supplemental Information For Property Casualty Insurance Underwriters Current Year Claims And Claims Adjustment Expense SupplementalInformationForPropertyCasualtyInsuranceUnderwritersCurrentYearClaimsAndClaimsAdjustmentExpense	32687000	USD
	us-gaap	Supplemental Information For Property Casualty Insurance Underwriters Prior Year Claims And Claims Adjustment Expense SupplementalInformationForPropertyCasualtyInsuranceUnderwritersPriorYearClaimsAndClaimsAdjustmentExpense	-18361000	USD
	us-gaap	Supplemental Information For Property Casualty Insurance Underwriters Prior Year Claims And Claims Adjustment Expense SupplementalInformationForPropertyCasualtyInsuranceUnderwritersPriorYearClaimsAndClaimsAdjustmentExpense	-593000	USD
	us-gaap	Policyholder Benefits And Claims Incurred Net PolicyholderBenefitsAndClaimsIncurredNet	-2968000	USD
	us-gaap	Policyholder Benefits And Claims Incurred Net PolicyholderBenefitsAndClaimsIncurredNet	32094000	USD
	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Claims Paid Current Year1 LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidCurrentYear1	-8479000	USD
	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Claims Paid Prior Years1 LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidPriorYears1	206708000	USD
	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Claims Paid Prior Years1 LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidPriorYears1	387023000	USD
	us-gaap	Payments For Losses And Loss Adjustment Expense PaymentsForLossesAndLossAdjustmentExpense	198229000	USD
	us-gaap	Payments For Losses And Loss Adjustment Expense PaymentsForLossesAndLossAdjustmentExpense	388855000	USD
	mhld	Liability For Unpaid Claims And Claims Adjustment Expense Retroactive Reinsurance Adjustment LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseRetroactiveReinsuranceAdjustment	-20687000	USD
	mhld	Liability For Unpaid Claims And Claims Adjustment Expense Retroactive Reinsurance Adjustment LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseRetroactiveReinsuranceAdjustment	-1410000	USD
	mhld	Liability For Unpaid Claims And Claims Adjustment Expense Foreign Currency Transaction And Translation Adjustment LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseForeignCurrencyTransactionAndTranslationAdjustment	11177000	USD
	mhld	Liability For Unpaid Claims And Claims Adjustment Expense Foreign Currency Transaction And Translation Adjustment LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseForeignCurrencyTransactionAndTranslationAdjustment	7408000	USD
CY2021Q2	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Net LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseNet	1109041000	USD
CY2020Q2	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Net LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseNet	1453726000	USD
CY2021Q2	us-gaap	Reinsurance Recoverables ReinsuranceRecoverables	565549000	USD
CY2020Q2	us-gaap	Reinsurance Recoverables ReinsuranceRecoverables	617496000	USD
CY2021Q2	us-gaap	Liability For Claims And Claims Adjustment Expense LiabilityForClaimsAndClaimsAdjustmentExpense	1674590000	USD
CY2020Q2	us-gaap	Liability For Claims And Claims Adjustment Expense LiabilityForClaimsAndClaimsAdjustmentExpense	2071222000	USD
CY2021Q2	mhld	Liabilityfor Unpaid Claimsand Claims Adjustment Expense Period Increase Decrease Netof Commission Changes LiabilityforUnpaidClaimsandClaimsAdjustmentExpensePeriodIncreaseDecreaseNetofCommissionChanges	-12807000	USD
	mhld	Liabilityfor Unpaid Claimsand Claims Adjustment Expense Period Increase Decrease Netof Commission Changes LiabilityforUnpaidClaimsandClaimsAdjustmentExpensePeriodIncreaseDecreaseNetofCommissionChanges	-18361000	USD
CY2020Q2	mhld	Liabilityfor Unpaid Claimsand Claims Adjustment Expense Period Increase Decrease Netof Commission Changes LiabilityforUnpaidClaimsandClaimsAdjustmentExpensePeriodIncreaseDecreaseNetofCommissionChanges	-60000	USD
	mhld	Liabilityfor Unpaid Claimsand Claims Adjustment Expense Period Increase Decrease Netof Commission Changes LiabilityforUnpaidClaimsandClaimsAdjustmentExpensePeriodIncreaseDecreaseNetofCommissionChanges	-593000	USD
	mhld	Liability For Unpaid Claims And Claims Adjustment Expense Retroactive Reinsurance Adjustment LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseRetroactiveReinsuranceAdjustment	-20687000	USD
	mhld	Liability For Unpaid Claims And Claims Adjustment Expense Retroactive Reinsurance Adjustment LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseRetroactiveReinsuranceAdjustment	-1410000	USD
CY2020Q4	us-gaap	Loans And Leases Receivable Related Parties LoansAndLeasesReceivableRelatedParties	167975000	USD
CY2021Q2	us-gaap	Loans And Leases Receivable Related Parties LoansAndLeasesReceivableRelatedParties	167975000	USD
CY2021Q2	us-gaap	Fair Value Investments Entities That Calculate Net Asset Value Per Share Unfunded Committments FairValueInvestmentsEntitiesThatCalculateNetAssetValuePerShareUnfundedCommittments	66351000	USD
CY2020Q4	us-gaap	Fair Value Investments Entities That Calculate Net Asset Value Per Share Unfunded Committments FairValueInvestmentsEntitiesThatCalculateNetAssetValuePerShareUnfundedCommittments	63313000	USD
CY2021Q2	us-gaap	Other Commitment OtherCommitment	8545000	USD
CY2021Q2	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.10
CY2021Q2	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P3Y
CY2021Q2	us-gaap	Net Income Loss NetIncomeLoss	8112000	USD
CY2020Q2	us-gaap	Net Income Loss NetIncomeLoss	9212000	USD
	us-gaap	Net Income Loss NetIncomeLoss	17398000	USD
	us-gaap	Net Income Loss NetIncomeLoss	30073000	USD
CY2021Q2	us-gaap	Preferred Stock Redemption Discount PreferredStockRedemptionDiscount	18714000	USD
CY2020Q2	us-gaap	Preferred Stock Redemption Discount PreferredStockRedemptionDiscount	0	USD
	us-gaap	Preferred Stock Redemption Discount PreferredStockRedemptionDiscount	81164000	USD
	us-gaap	Preferred Stock Redemption Discount PreferredStockRedemptionDiscount	0	USD
CY2021Q2	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	198000	USD
CY2020Q2	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	168000	USD
	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	1139000	USD
	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	390000	USD
CY2021Q2	us-gaap	Undistributed Earnings Loss Available To Common Shareholders Diluted UndistributedEarningsLossAvailableToCommonShareholdersDiluted	26628000	USD
CY2021Q2	us-gaap	Undistributed Earnings Loss Available To Common Shareholders Basic UndistributedEarningsLossAvailableToCommonShareholdersBasic	26628000	USD
CY2020Q2	us-gaap	Undistributed Earnings Loss Available To Common Shareholders Diluted UndistributedEarningsLossAvailableToCommonShareholdersDiluted	9044000	USD
CY2020Q2	us-gaap	Undistributed Earnings Loss Available To Common Shareholders Basic UndistributedEarningsLossAvailableToCommonShareholdersBasic	9044000	USD
	us-gaap	Undistributed Earnings Loss Available To Common Shareholders Basic UndistributedEarningsLossAvailableToCommonShareholdersBasic	97423000	USD
	us-gaap	Undistributed Earnings Loss Available To Common Shareholders Diluted UndistributedEarningsLossAvailableToCommonShareholdersDiluted	97423000	USD
	us-gaap	Undistributed Earnings Loss Available To Common Shareholders Basic UndistributedEarningsLossAvailableToCommonShareholdersBasic	29683000	USD
	us-gaap	Undistributed Earnings Loss Available To Common Shareholders Diluted UndistributedEarningsLossAvailableToCommonShareholdersDiluted	29683000	USD
CY2021Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	86230021	shares
CY2020Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	84537385	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	85684511	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	83896804	shares
CY2021Q2	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	5351	shares
CY2020Q2	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	0	shares
	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	4382	shares
	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	0	shares
CY2021Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	86235372	shares
CY2020Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	84537385	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	85688893	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	83896804	shares
CY2021Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.31
CY2021Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.31
CY2020Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.11
CY2020Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.11
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.14
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.14
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.35
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.35
CY2021Q2	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	5351	shares
	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	4382	shares

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R38.htm	Edgar Link	pending
0001412100-21-000067-index-headers.html	Edgar Link	pending
0001412100-21-000067-index.html	Edgar Link	pending
0001412100-21-000067.txt	Edgar Link	pending
0001412100-21-000067-xbrl.zip	Edgar Link	pending
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MetaLinks.json	Edgar Link	pending
mhld-20210630.htm	Edgar Link	pending
mhld-20210630.xsd	Edgar Link	pending
mhld-20210630_cal.xml	Edgar Link	unprocessable
mhld-20210630_def.xml	Edgar Link	unprocessable
mhld-20210630_htm.xml	Edgar Link	completed
mhld-20210630_lab.xml	Edgar Link	unprocessable
mhld-20210630_pre.xml	Edgar Link	unprocessable
q22021exhibit-311.htm	Edgar Link	pending
q22021exhibit-312.htm	Edgar Link	pending
q22021exhibit-321.htm	Edgar Link	pending
q22021exhibit-322.htm	Edgar Link	pending
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2021 Q2 Form 10-Q Financial Statement

#000141210021000067 Filed on August 09, 2021

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$MHLD Maiden Holdings, Ltd. Stock $mhld

2021 Q2 Form 10-Q Financial Statement

#000141210021000067 Filed on August 09, 2021

Income Statement

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$MHLD
Maiden Holdings, Ltd. Stock $mhld