$MHLD
Maiden Holdings, Ltd. Stock $mhld

$mhld Overview Financials Valuation SEC Filings Company Website

2018 Q4 Form 10-Q Financial Statement

#000141210018000058 Filed on November 09, 2018

Income Statement

Concept	2018 Q4	2018 Q3	2017 Q3
Revenue	$515.1M	$555.7M	$496.5M
YoY Change	-0.76%	11.91%	-32.73%
Cost Of Revenue		$600.3M	$370.8M
YoY Change		61.87%	-20.55%
Gross Profit		-$44.63M	$125.7M
YoY Change		-135.51%	-53.69%
Gross Profit Margin		-8.03%	25.31%
Selling, General & Admin	$174.3M	$186.8M	$160.8M
YoY Change	1.99%	16.17%	-28.12%
% of Gross Profit			127.93%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$1.400M	$167.6M	$145.4M
YoY Change	-1500.0%	15.32%	-29.68%
% of Gross Profit			115.64%
Operating Expenses	$730.9M	$5.208M	$4.929M
YoY Change	14.98%	5.66%	-49.69%
Operating Profit		-$49.84M	$120.8M
YoY Change		-141.27%	-53.84%
Interest Expense	-$2.200M	-$5.400M	-$8.400M
YoY Change	-71.05%	-35.71%	35.48%
% of Operating Profit			-6.96%
Other Income/Expense, Net	$0.00		$0.00
YoY Change
Pretax Income	-$218.0M	-$236.8M	-$43.44M
YoY Change	74.96%	445.19%	-205.97%
Income Tax	$1.400M	$3.573M	$1.704M
% Of Pretax Income
Net Earnings	-$269.2M	-$300.3M	-$63.60M
YoY Change	101.54%	372.19%	-299.81%
Net Earnings / Revenue	-52.27%	-54.04%	-12.81%
Basic Earnings Per Share	-$3.25	-$3.72	-$0.74
Diluted Earnings Per Share	-$3.25	-$3.72	-$0.74
COMMON SHARES
Basic Shares Outstanding	82.94M shares	83.14M shares	85.86M shares
Diluted Shares Outstanding			85.86M shares

Balance Sheet

Concept	2018 Q4	2018 Q3	2017 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents	$200.8M	$94.58M	$154.2M
Short-Term Investments
Other Short-Term Assets
YoY Change
Inventory
Prepaid Expenses
Receivables
Other Receivables
Total Short-Term Assets
YoY Change
LONG-TERM ASSETS
Property, Plant & Equipment
YoY Change
Goodwill	$0.00	$0.00
YoY Change	-100.0%
Intangibles	$0.00	$0.00
YoY Change	-100.0%
Long-Term Investments	$4.259B	$4.005B	$5.178B
YoY Change	7.01%	-22.65%	10.44%
Other Assets	$304.6M	$1.786B	$131.6M
YoY Change	-84.14%	1256.76%	-64.1%
Total Long-Term Assets
YoY Change
TOTAL ASSETS
Total Short-Term Assets
Total Long-Term Assets
Total Assets	$5.287B	$6.537B	$6.839B
YoY Change	-20.42%	-4.42%	5.74%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable
YoY Change
Accrued Expenses	$65.50M	$18.50M	$175.5M
YoY Change	-27.3%	-89.46%	16.46%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$65.50M	$18.50M	$175.5M
YoY Change	-27.3%	-89.46%	16.46%
LONG-TERM LIABILITIES
Long-Term Debt	$254.7M	$254.6M	$254.4M
YoY Change	0.08%	0.08%	-27.58%
Other Long-Term Liabilities	$156.0M	$1.340B
YoY Change	-89.24%
Total Long-Term Liabilities	$410.7M	$1.594B	$254.4M
YoY Change	-75.9%	526.65%	-27.58%
TOTAL LIABILITIES
Total Short-Term Liabilities	$65.50M	$18.50M	$175.5M
Total Long-Term Liabilities	$410.7M	$1.594B	$254.4M
Total Liabilities	$4.733B	$5.763B	$5.418B
YoY Change	-12.55%	6.38%	10.3%
SHAREHOLDERS EQUITY
Retained Earnings	-$563.9M	-$294.7M	$181.5M
YoY Change	-1689.68%	-262.34%	-51.38%
Common Stock	$879.0K	$879.0K	$877.0K
YoY Change	0.23%	0.23%	0.57%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$31.52M	$31.51M	$19.90M
YoY Change	2.85%	58.34%	298.78%
Treasury Stock Shares	4.990M shares	4.990M shares	3.104M shares
Shareholders Equity	$554.3M	$772.6M	$1.421B
YoY Change
Total Liabilities & Shareholders Equity	$5.287B	$6.537B	$6.839B
YoY Change	-20.42%	-4.42%	5.74%

Cashflow Statement

Concept	2018 Q4	2018 Q3	2017 Q3
OPERATING ACTIVITIES
Net Income	-$269.2M	-$300.3M	-$63.60M
YoY Change	101.54%	372.19%	-299.81%
Depreciation, Depletion And Amortization	$1.400M	$167.6M	$145.4M
YoY Change	-1500.0%	15.32%	-29.68%
Cash From Operating Activities	$13.60M	$106.5M	$151.3M
YoY Change	-67.31%	-29.61%	-6.14%
INVESTING ACTIVITIES
Capital Expenditures
YoY Change
Acquisitions
YoY Change
Other Investing Activities	$5.700M	$5.000M	-$239.3M
YoY Change	-103.26%	-102.09%	18.47%
Cash From Investing Activities	$5.700M	$5.000M	-$239.3M
YoY Change	-103.26%	-102.09%	18.47%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-4.100M	-21.70M	-36.00M
YoY Change	-87.19%	-39.72%	86.53%
NET CHANGE
Cash From Operating Activities	13.60M	106.5M	151.3M
Cash From Investing Activities	5.700M	5.000M	-239.3M
Cash From Financing Activities	-4.100M	-21.70M	-36.00M
Net Change In Cash	15.20M	89.80M	-124.0M
YoY Change	-109.2%	-172.42%	106.32%
FREE CASH FLOW
Cash From Operating Activities	$13.60M	$106.5M	$151.3M
Capital Expenditures
Free Cash Flow
YoY Change

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
	dei	Amendment Flag AmendmentFlag	false
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CY2017Q4	us-gaap	Accrued Investment Income Receivable AccruedInvestmentIncomeReceivable	28798000	USD
CY2018Q3	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	169996000	USD
CY2017Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	94905000	USD
	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q3
	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2018
	dei	Document Period End Date DocumentPeriodEndDate	2018-09-30
	dei	Entity Central Index Key EntityCentralIndexKey	0001412100
	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
	dei	Trading Symbol TradingSymbol	MHLD
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	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	205000	shares
	dei	Document Type DocumentType	10-Q
	dei	Entity Registrant Name EntityRegistrantName	MAIDEN HOLDINGS, LTD.
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	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-27828000	USD
	us-gaap	Income Loss From Continuing Operations Per Basic And Diluted Share IncomeLossFromContinuingOperationsPerBasicAndDilutedShare	-3.09
	us-gaap	Income Loss From Continuing Operations Per Basic And Diluted Share IncomeLossFromContinuingOperationsPerBasicAndDilutedShare	-0.56
CY2018Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic And Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicAndDilutedShare	-0.86
CY2017Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic And Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicAndDilutedShare	-0.12
	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic And Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicAndDilutedShare	-0.53
	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic And Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicAndDilutedShare	-0.20
CY2018Q3	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-3.72
CY2017Q3	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-0.74
	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-3.62
	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-0.76
CY2018Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.05
CY2018Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	-71100000	USD
CY2017Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	-9908000	USD
	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	-44336000	USD
	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	-17060000	USD
CY2018Q3	us-gaap	Profit Loss ProfitLoss	-300232000	USD
CY2017Q3	us-gaap	Profit Loss ProfitLoss	-55054000	USD
	us-gaap	Profit Loss ProfitLoss	-275209000	USD
	us-gaap	Profit Loss ProfitLoss	-44888000	USD
CY2018Q3	us-gaap	Income Loss From Continuing Operations Attributable To Noncontrolling Entity IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity	62000	USD
CY2017Q3	us-gaap	Income Loss From Continuing Operations Attributable To Noncontrolling Entity IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity	-3000	USD
	us-gaap	Income Loss From Continuing Operations Attributable To Noncontrolling Entity IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity	180000	USD
	us-gaap	Income Loss From Continuing Operations Attributable To Noncontrolling Entity IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity	-34000	USD
CY2018Q3	us-gaap	Net Income Loss NetIncomeLoss	-300294000	USD
CY2017Q3	us-gaap	Net Income Loss NetIncomeLoss	-55051000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-275389000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-44854000	USD
CY2018Q3	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	8545000	USD
CY2017Q3	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	8545000	USD
	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	25636000	USD
	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	20611000	USD
CY2018Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-308839000	USD
CY2017Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-63596000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-301025000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-65465000	USD
CY2018Q3	us-gaap	Income Loss From Continuing Operations Per Basic And Diluted Share IncomeLossFromContinuingOperationsPerBasicAndDilutedShare	-2.86
CY2017Q3	us-gaap	Income Loss From Continuing Operations Per Basic And Diluted Share IncomeLossFromContinuingOperationsPerBasicAndDilutedShare	-0.62
CY2017Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.15
	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.35
	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.45
CY2018Q3	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	83089172	shares
CY2017Q3	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	85859201	shares
CY2018Q3	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	59000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Noncontrolling Interest OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest	41000	USD
	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	83085441	shares
	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	86256481	shares
CY2018Q3	us-gaap	Profit Loss ProfitLoss	-300232000	USD
CY2017Q3	us-gaap	Profit Loss ProfitLoss	-55054000	USD
	us-gaap	Profit Loss ProfitLoss	-275209000	USD
	us-gaap	Profit Loss ProfitLoss	-44888000	USD
CY2018Q3	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-24658000	USD
CY2017Q3	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	25019000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-141926000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	68798000	USD
CY2018Q3	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	-785000	USD
CY2017Q3	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	3650000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	-40000	USD
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	-1123000	USD
CY2018Q3	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Before Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax	4458000	USD
CY2017Q3	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Before Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax	-10828000	USD
	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Before Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax	12123000	USD
	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Before Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentBeforeTax	-38803000	USD
CY2018Q3	us-gaap	Other Comprehensive Income Loss Before Tax OtherComprehensiveIncomeLossBeforeTax	-19415000	USD
CY2017Q3	us-gaap	Other Comprehensive Income Loss Before Tax OtherComprehensiveIncomeLossBeforeTax	10541000	USD
	us-gaap	Other Comprehensive Income Loss Before Tax OtherComprehensiveIncomeLossBeforeTax	-129763000	USD
	us-gaap	Other Comprehensive Income Loss Before Tax OtherComprehensiveIncomeLossBeforeTax	31118000	USD
CY2018Q3	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	-2000	USD
CY2017Q3	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	25000	USD
	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	-19000	USD
	us-gaap	Other Comprehensive Income Loss Tax OtherComprehensiveIncomeLossTax	-5000	USD
CY2018Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-19413000	USD
CY2017Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	10516000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-129744000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	31123000	USD
CY2018Q3	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	-319645000	USD
CY2017Q3	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	-44538000	USD
	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	-404953000	USD
	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	-13765000	USD
CY2018Q3	us-gaap	Income Loss From Continuing Operations Attributable To Noncontrolling Entity IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity	62000	USD
CY2017Q3	us-gaap	Income Loss From Continuing Operations Attributable To Noncontrolling Entity IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity	-3000	USD
	us-gaap	Income Loss From Continuing Operations Attributable To Noncontrolling Entity IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity	180000	USD
	us-gaap	Income Loss From Continuing Operations Attributable To Noncontrolling Entity IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity	-34000	USD
CY2018Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Noncontrolling Interest OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest	-3000	USD
CY2017Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Noncontrolling Interest OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest	12000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Noncontrolling Interest OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest	-21000	USD
CY2017Q3	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	9000	USD
CY2017Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Disposal Group Including Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsDisposalGroupIncludingDiscontinuedOperations	88606000	USD
	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	159000	USD
	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	7000	USD
CY2018Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-319704000	USD
CY2017Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-44547000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-405112000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-13772000	USD
CY2018Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	773165000	USD
CY2017Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1421389000	USD
	us-gaap	Profit Loss ProfitLoss	-275209000	USD
	us-gaap	Profit Loss ProfitLoss	-44888000	USD
	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	-44336000	USD
	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	-17060000	USD
	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	4774000	USD
	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	8464000	USD
	us-gaap	Gain Loss On Investments GainLossOnInvestments	-282000	USD
	us-gaap	Gain Loss On Investments GainLossOnInvestments	8316000	USD
	us-gaap	Other Than Temporary Impairment Losses Investments Portion Recognized In Earnings Net Availableforsale Securities OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNetAvailableforsaleSecurities	479000	USD
	us-gaap	Other Than Temporary Impairment Losses Investments Portion Recognized In Earnings Net Availableforsale Securities OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNetAvailableforsaleSecurities	0	USD
	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	1862000	USD
	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-12193000	USD
	us-gaap	Increase Decrease In Premiums Receivable IncreaseDecreaseInPremiumsReceivable	92904000	USD
	us-gaap	Increase Decrease In Premiums Receivable IncreaseDecreaseInPremiumsReceivable	22098000	USD
	us-gaap	Increase Decrease In Accrued Investment Income Receivable IncreaseDecreaseInAccruedInvestmentIncomeReceivable	1000000	USD
	us-gaap	Increase Decrease In Accrued Investment Income Receivable IncreaseDecreaseInAccruedInvestmentIncomeReceivable	-1124000	USD
	us-gaap	Increase Decrease In Deferred Policy Acquisition Costs IncreaseDecreaseInDeferredPolicyAcquisitionCosts	40097000	USD
	us-gaap	Increase Decrease In Deferred Policy Acquisition Costs IncreaseDecreaseInDeferredPolicyAcquisitionCosts	38773000	USD
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-91422000	USD
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	22804000	USD
	us-gaap	Increase Decrease In Liability For Claims And Claims Adjustment Expense Reserve IncreaseDecreaseInLiabilityForClaimsAndClaimsAdjustmentExpenseReserve	481227000	USD
	us-gaap	Increase Decrease In Liability For Claims And Claims Adjustment Expense Reserve IncreaseDecreaseInLiabilityForClaimsAndClaimsAdjustmentExpenseReserve	325221000	USD
	us-gaap	Increase Decrease In Unearned Premiums IncreaseDecreaseInUnearnedPremiums	72200000	USD
	us-gaap	Increase Decrease In Unearned Premiums IncreaseDecreaseInUnearnedPremiums	94489000	USD
	us-gaap	Increase Decrease In Accrued Liabilities And Other Operating Liabilities IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities	-66401000	USD
	us-gaap	Increase Decrease In Accrued Liabilities And Other Operating Liabilities IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities	6877000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	217247000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	328549000	USD
	us-gaap	Cash Provided By Used In Operating Activities Discontinued Operations CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations	-54624000	USD
	us-gaap	Cash Provided By Used In Operating Activities Discontinued Operations CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations	46265000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	162623000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	374814000	USD
	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	517839000	USD
	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	538429000	USD
	us-gaap	Payments To Acquire Other Investments PaymentsToAcquireOtherInvestments	17532000	USD
	us-gaap	Payments To Acquire Other Investments PaymentsToAcquireOtherInvestments	986000	USD
	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	185089000	USD
	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	116306000	USD
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	196275000	USD
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	224940000	USD
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	62018000	USD
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	20744000	USD
	us-gaap	Proceeds From Sale And Maturity Of Other Investments ProceedsFromSaleAndMaturityOfOtherInvestments	2160000	USD
	us-gaap	Proceeds From Sale And Maturity Of Other Investments ProceedsFromSaleAndMaturityOfOtherInvestments	11119000	USD
	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	2985000	USD
	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	1997000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-92814000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-168303000	USD
	us-gaap	Cash Provided By Used In Investing Activities Discontinued Operations CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations	119965000	USD
	us-gaap	Cash Provided By Used In Investing Activities Discontinued Operations CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations	-16710000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	27151000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-185013000	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	857000	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	13836000	USD
	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	37400000	USD
	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	38935000	USD
	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	25636000	USD
	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	20611000	USD
	us-gaap	Proceeds From Issuance Of Preferred Stock And Preference Stock ProceedsFromIssuanceOfPreferredStockAndPreferenceStock	0	USD
	us-gaap	Proceeds From Issuance Of Preferred Stock And Preference Stock ProceedsFromIssuanceOfPreferredStockAndPreferenceStock	144942000	USD
	us-gaap	Repayments Of Senior Debt RepaymentsOfSeniorDebt	0	USD
	us-gaap	Repayments Of Senior Debt RepaymentsOfSeniorDebt	100000000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-63893000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-28440000	USD
	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	-1131000	USD
	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	3379000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	124750000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	164740000	USD
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	191503000	USD
CY2016Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	149535000	USD
CY2018Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	316253000	USD
CY2017Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	314275000	USD
CY2018Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Disposal Group Including Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsDisposalGroupIncludingDiscontinuedOperations	51679000	USD
CY2018Q3	us-gaap	Deferred Policy Acquisition Cost Amortization Expense DeferredPolicyAcquisitionCostAmortizationExpense	167618000	USD
CY2018Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	264574000	USD
CY2017Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	225669000	USD
CY2018Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	94578000	USD
CY2017Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	154152000	USD
CY2018Q3	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	169996000	USD
CY2017Q3	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	71517000	USD
CY2018Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	264574000	USD
CY2017Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	225669000	USD
	mhld	Revenue Recognition Percentage Of Revenue In Scope With Accounting Standard Update201409 RevenueRecognitionPercentageOfRevenueInScopeWithAccountingStandardUpdate201409	0.01
CY2018Q3	mhld	Equity Securities Fvni Unrealized Gain Loss EquitySecuritiesFVNIUnrealizedGainLoss	-465000	USD
	mhld	Equity Securities Fvni Unrealized Gain Loss EquitySecuritiesFVNIUnrealizedGainLoss	358000	USD
	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	2	Segment
CY2018Q3	us-gaap	Premiums Written Gross PremiumsWrittenGross	484494000	USD
CY2018Q3	us-gaap	Premiums Written Net PremiumsWrittenNet	482806000	USD
CY2018Q3	us-gaap	Premiums Earned Net PremiumsEarnedNet	520077000	USD
CY2018Q3	us-gaap	Other Income OtherIncome	1870000	USD
CY2018Q3	us-gaap	Policyholder Benefits And Claims Incurred Net PolicyholderBenefitsAndClaimsIncurredNet	600296000	USD
CY2018Q3	us-gaap	Operating Expenses OperatingExpenses	5208000	USD
CY2018Q3	mhld	Underwriting Income Loss Net UnderwritingIncomeLossNet	-251175000	USD
CY2018Q3	mhld	Investment Income And Gain Loss On Investments Net InvestmentIncomeAndGainLossOnInvestmentsNet	34194000	USD
CY2018Q3	us-gaap	Other Than Temporary Impairment Losses Investments Portion Recognized In Earnings Net OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNet	479000	USD
CY2018Q3	us-gaap	Interest Expense Debt InterestExpenseDebt	4829000	USD
CY2018Q3	mhld	Foreign Currency Transactionand Other Gain Lossbefore Tax ForeignCurrencyTransactionandOtherGainLossbeforeTax	-552000	USD
CY2018Q3	us-gaap	Other General And Administrative Expense OtherGeneralAndAdministrativeExpense	13728000	USD
CY2018Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-7437000	USD
	mhld	Foreign Currency Transactionand Other Gain Lossbefore Tax ForeignCurrencyTransactionandOtherGainLossbeforeTax	1862000	USD
	us-gaap	Other General And Administrative Expense OtherGeneralAndAdministrativeExpense	32059000	USD
CY2018Q3	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-229132000	USD
CY2018Q3	us-gaap	Loss Ratio LossRatio	1.150
CY2018Q3	us-gaap	Acquisition Cost Ratio AcquisitionCostRatio	0.321
CY2018Q3	us-gaap	General And Administrative Expense Ratio GeneralAndAdministrativeExpenseRatio	0.036
CY2018Q3	mhld	Expense Ratio ExpenseRatio	0.357
CY2018Q3	us-gaap	Combined Ratio CombinedRatio	1.507
CY2017Q3	us-gaap	Premiums Written Gross PremiumsWrittenGross	443001000	USD
CY2017Q3	us-gaap	Premiums Written Net PremiumsWrittenNet	432677000	USD
CY2017Q3	us-gaap	Premiums Earned Net PremiumsEarnedNet	457278000	USD
CY2017Q3	us-gaap	Other Income OtherIncome	2488000	USD
CY2017Q3	us-gaap	Policyholder Benefits And Claims Incurred Net PolicyholderBenefitsAndClaimsIncurredNet	370847000	USD
CY2017Q3	us-gaap	Deferred Policy Acquisition Cost Amortization Expense DeferredPolicyAcquisitionCostAmortizationExpense	145352000	USD
CY2017Q3	us-gaap	Operating Expenses OperatingExpenses	4929000	USD
CY2017Q3	mhld	Underwriting Income Loss Net UnderwritingIncomeLossNet	-61362000	USD
CY2017Q3	mhld	Investment Income And Gain Loss On Investments Net InvestmentIncomeAndGainLossOnInvestmentsNet	36809000	USD
CY2017Q3	us-gaap	Interest Expense Debt InterestExpenseDebt	4829000	USD
CY2017Q3	mhld	Foreign Currency Transactionand Other Gain Lossbefore Tax ForeignCurrencyTransactionandOtherGainLossbeforeTax	-3550000	USD
CY2017Q3	us-gaap	Other General And Administrative Expense OtherGeneralAndAdministrativeExpense	10510000	USD
CY2017Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1704000	USD
CY2017Q3	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-45146000	USD
CY2017Q3	us-gaap	Loss Ratio LossRatio	0.806
CY2017Q3	us-gaap	Acquisition Cost Ratio AcquisitionCostRatio	0.316
CY2017Q3	us-gaap	General And Administrative Expense Ratio GeneralAndAdministrativeExpenseRatio	0.034
CY2017Q3	mhld	Expense Ratio ExpenseRatio	0.350
CY2017Q3	us-gaap	Combined Ratio CombinedRatio	1.156
	us-gaap	Premiums Written Gross PremiumsWrittenGross	1629347000	USD
	us-gaap	Premiums Written Net PremiumsWrittenNet	1626485000	USD
	us-gaap	Premiums Earned Net PremiumsEarnedNet	1541278000	USD
	us-gaap	Other Income OtherIncome	7629000	USD
	us-gaap	Policyholder Benefits And Claims Incurred Net PolicyholderBenefitsAndClaimsIncurredNet	1323503000	USD
	us-gaap	Deferred Policy Acquisition Cost Amortization Expense DeferredPolicyAcquisitionCostAmortizationExpense	497026000	USD
	us-gaap	Operating Expenses OperatingExpenses	16284000	USD
	mhld	Underwriting Income Loss Net UnderwritingIncomeLossNet	-287906000	USD
	mhld	Investment Income And Gain Loss On Investments Net InvestmentIncomeAndGainLossOnInvestmentsNet	101266000	USD
	us-gaap	Other Than Temporary Impairment Losses Investments Portion Recognized In Earnings Net OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNet	479000	USD
	us-gaap	Interest Expense Debt InterestExpenseDebt	14487000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-930000	USD
	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-230873000	USD
	us-gaap	Loss Ratio LossRatio	0.855
	us-gaap	Acquisition Cost Ratio AcquisitionCostRatio	0.321
	us-gaap	General And Administrative Expense Ratio GeneralAndAdministrativeExpenseRatio	0.031
	mhld	Expense Ratio ExpenseRatio	0.352
	us-gaap	Combined Ratio CombinedRatio	1.207
	us-gaap	Premiums Written Gross PremiumsWrittenGross	1650762000	USD
	us-gaap	Premiums Written Net PremiumsWrittenNet	1603414000	USD
	us-gaap	Premiums Earned Net PremiumsEarnedNet	1512437000	USD
	us-gaap	Other Income OtherIncome	7816000	USD
	us-gaap	Policyholder Benefits And Claims Incurred Net PolicyholderBenefitsAndClaimsIncurredNet	1090608000	USD
	us-gaap	Deferred Policy Acquisition Cost Amortization Expense DeferredPolicyAcquisitionCostAmortizationExpense	487771000	USD
	us-gaap	Operating Expenses OperatingExpenses	14071000	USD
	mhld	Underwriting Income Loss Net UnderwritingIncomeLossNet	-72197000	USD
	mhld	Investment Income And Gain Loss On Investments Net InvestmentIncomeAndGainLossOnInvestmentsNet	99913000	USD
	us-gaap	Interest Expense Debt InterestExpenseDebt	18430000	USD
	mhld	Accelerated Amortizationof Debt Issuance Cost Long Term Debt AcceleratedAmortizationofDebtIssuanceCostLongTermDebt	2809000	USD
	mhld	Foreign Currency Transactionand Other Gain Lossbefore Tax ForeignCurrencyTransactionandOtherGainLossbeforeTax	-12193000	USD
	us-gaap	Other General And Administrative Expense OtherGeneralAndAdministrativeExpense	24090000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-1978000	USD
	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-27828000	USD
	us-gaap	Loss Ratio LossRatio	0.717
	us-gaap	Acquisition Cost Ratio AcquisitionCostRatio	0.321
	us-gaap	General And Administrative Expense Ratio GeneralAndAdministrativeExpenseRatio	0.025
	mhld	Expense Ratio ExpenseRatio	0.346
	us-gaap	Combined Ratio CombinedRatio	1.063
CY2018Q3	us-gaap	Premiums Written Net PremiumsWrittenNet	482806000	USD
CY2018Q3	mhld	Premiums Written Net As Percent Of Total PremiumsWrittenNetAsPercentOfTotal	1.000
CY2017Q3	us-gaap	Premiums Written Net PremiumsWrittenNet	432677000	USD
CY2017Q3	mhld	Premiums Written Net As Percent Of Total PremiumsWrittenNetAsPercentOfTotal	1.000
	us-gaap	Premiums Written Net PremiumsWrittenNet	1626485000	USD
	mhld	Premiums Written Net As Percent Of Total PremiumsWrittenNetAsPercentOfTotal	1.000
	us-gaap	Premiums Written Net PremiumsWrittenNet	1603414000	USD
	mhld	Premiums Written Net As Percent Of Total PremiumsWrittenNetAsPercentOfTotal	1.000
CY2018Q3	us-gaap	Premiums Earned Net PremiumsEarnedNet	520077000	USD
CY2018Q3	mhld	Premiums Earned Net As Percent Of Total PremiumsEarnedNetAsPercentOfTotal	1.000
CY2017Q3	us-gaap	Premiums Earned Net PremiumsEarnedNet	457278000	USD
CY2017Q3	mhld	Premiums Earned Net As Percent Of Total PremiumsEarnedNetAsPercentOfTotal	1.000
	us-gaap	Premiums Earned Net PremiumsEarnedNet	1541278000	USD
	mhld	Premiums Earned Net As Percent Of Total PremiumsEarnedNetAsPercentOfTotal	1.000
	us-gaap	Premiums Earned Net PremiumsEarnedNet	1512437000	USD
	mhld	Premiums Earned Net As Percent Of Total PremiumsEarnedNetAsPercentOfTotal	1.000
CY2018Q3	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	2867251000	USD
CY2018Q3	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	10338000	USD
CY2018Q3	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	96036000	USD
CY2018Q3	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	2781553000	USD
CY2018Q3	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	1032885000	USD
CY2018Q3	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Gain HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain	6103000	USD
CY2018Q3	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Loss HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss	19247000	USD
CY2018Q3	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	1019741000	USD
CY2018Q3	mhld	Investments Original Or Amortized Cost Basis InvestmentsOriginalOrAmortizedCostBasis	3900136000	USD
CY2018Q3	mhld	Investments Gross Unrealized Gains InvestmentsGrossUnrealizedGains	16441000	USD
CY2018Q3	mhld	Investments Gross Unrealized Losses InvestmentsGrossUnrealizedLosses	115283000	USD
CY2018Q3	us-gaap	Investments Fair Value Disclosure InvestmentsFairValueDisclosure	3801294000	USD
CY2017Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	2699297000	USD
CY2017Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	38296000	USD
CY2017Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	30077000	USD
CY2017Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	2707516000	USD
CY2017Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	1097801000	USD
CY2017Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Gain HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain	28822000	USD
CY2017Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Loss HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss	997000	USD
CY2017Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	1125626000	USD
CY2017Q4	mhld	Investments Original Or Amortized Cost Basis InvestmentsOriginalOrAmortizedCostBasis	3797098000	USD
CY2017Q4	mhld	Investments Gross Unrealized Gains InvestmentsGrossUnrealizedGains	67118000	USD
CY2017Q4	mhld	Investments Gross Unrealized Losses InvestmentsGrossUnrealizedLosses	31074000	USD
CY2017Q4	us-gaap	Investments Fair Value Disclosure InvestmentsFairValueDisclosure	3833142000	USD
CY2017Q4	mhld	Fair Valueof Securities Transferredfrom Availablefor Sale Securitiesto Heldto Maturity Securities FairValueofSecuritiesTransferredfromAvailableforSaleSecuritiestoHeldtoMaturitySecurities	391934000	USD
CY2017	mhld	Availableforsale Securities Transferredto Held To Maturity Securities Unrealized Gain Loss AvailableforsaleSecuritiesTransferredtoHeldToMaturitySecuritiesUnrealizedGainLoss	4313000	USD
CY2018Q3	us-gaap	Available For Sale Securities Debt Maturities Within One Year Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost	3873000	USD
CY2018Q3	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	3522000	USD
CY2018Q3	us-gaap	Held To Maturity Securities Debt Maturities Within One Year Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearNetCarryingAmount	9297000	USD
CY2018Q3	us-gaap	Held To Maturity Securities Debt Maturities Within One Year Fair Value HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearFairValue	9289000	USD
CY2018Q3	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost	596895000	USD
CY2018Q3	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	583069000	USD
CY2018Q3	us-gaap	Held To Maturity Securities Debt Maturities After One Through Five Years Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsNetCarryingAmount	371750000	USD
CY2018Q3	us-gaap	Held To Maturity Securities Debt Maturities After One Through Five Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	372294000	USD
CY2018Q3	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost	555397000	USD
CY2018Q3	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	542562000	USD
CY2018Q3	us-gaap	Held To Maturity Securities Debt Maturities After Five Through Ten Years Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsNetCarryingAmount	651838000	USD
CY2018Q3	us-gaap	Held To Maturity Securities Debt Maturities After Five Through Ten Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	638158000	USD
CY2018Q3	us-gaap	Available For Sale Securities Debt Maturities Single Maturity Date Amortized Cost Basis AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasis	1156165000	USD
CY2018Q3	us-gaap	Available For Sale Securities Debt Maturities Single Maturity Date AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDate	1129153000	USD
CY2018Q3	us-gaap	Held To Maturity Securities Debt Maturities Single Maturity Date Amortized Cost Basis HeldToMaturitySecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasis	1032885000	USD
CY2018Q3	us-gaap	Held To Maturity Securities Debt Maturities Single Maturity Date Fair Value HeldToMaturitySecuritiesDebtMaturitiesSingleMaturityDateFairValue	1019741000	USD
CY2018Q3	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	2867251000	USD
CY2018Q3	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	2781553000	USD
CY2018Q3	us-gaap	Held To Maturity Securities Amortized Cost Before Other Than Temporary Impairment HeldToMaturitySecuritiesAmortizedCostBeforeOtherThanTemporaryImpairment	1032885000	USD
CY2018Q3	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	1019741000	USD
CY2018Q3	mhld	Fixed Maturities Continuous Unrealized Loss Position Lessthan Twelve Months Fair Value FixedMaturitiesContinuousUnrealizedLossPositionLessthanTwelveMonthsFairValue	2933617000	USD
CY2018Q3	mhld	Fixed Maturities Continuous Unrealized Loss Position Lessthan12 Months Accumulated Loss FixedMaturitiesContinuousUnrealizedLossPositionLessthan12MonthsAccumulatedLoss	60473000	USD
CY2018Q3	mhld	Fixed Maturities Continuous Unrealized Loss Position Twelve Monthsor Longer Fair Value FixedMaturitiesContinuousUnrealizedLossPositionTwelveMonthsorLongerFairValue	867678000	USD
CY2018Q3	mhld	Fixed Maturities Continuous Unrealized Loss Position12 Monthsor Longer Accumulated Loss FixedMaturitiesContinuousUnrealizedLossPosition12MonthsorLongerAccumulatedLoss	54810000	USD
CY2018Q3	mhld	Fixed Maturities Continuous Unrealized Loss Position Fair Value FixedMaturitiesContinuousUnrealizedLossPositionFairValue	3801295000	USD
CY2018Q3	mhld	Fixed Maturities Continuous Unrealized Loss Position Accumulated Loss FixedMaturitiesContinuousUnrealizedLossPositionAccumulatedLoss	115283000	USD
CY2018Q3	mhld	Fixed Securitiesin Unrealized Loss Positions Qualitative Disclosure Numberof Positions FixedSecuritiesinUnrealizedLossPositionsQualitativeDisclosureNumberofPositions	406	security
CY2018Q3	mhld	Investments Continuous Unrealized Loss Position Fair Value InvestmentsContinuousUnrealizedLossPositionFairValue	3801295000	USD
CY2018Q3	mhld	Investments Continuous Unrealized Loss Position Accumulated Loss InvestmentsContinuousUnrealizedLossPositionAccumulatedLoss	115283000	USD
CY2018Q3	mhld	Fixed Securitiesin Unrealized Loss Positions Qualitative Disclosure Numberof Positions Greaterthanor Equalto One Year FixedSecuritiesinUnrealizedLossPositionsQualitativeDisclosureNumberofPositionsGreaterthanorEqualtoOneYear	99	security
CY2018Q3	mhld	Investments Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value InvestmentsContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	867678000	USD
CY2018Q3	mhld	Investments Continuous Unrealized Loss Position12 Months Or Longer Aggregate Losses InvestmentsContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLosses	54810000	USD
CY2017Q4	mhld	Fixed Maturities Continuous Unrealized Loss Position Lessthan Twelve Months Fair Value FixedMaturitiesContinuousUnrealizedLossPositionLessthanTwelveMonthsFairValue	867330000	USD
CY2017Q4	mhld	Fixed Maturities Continuous Unrealized Loss Position Lessthan12 Months Accumulated Loss FixedMaturitiesContinuousUnrealizedLossPositionLessthan12MonthsAccumulatedLoss	7121000	USD
CY2017Q4	mhld	Fixed Maturities Continuous Unrealized Loss Position Twelve Monthsor Longer Fair Value FixedMaturitiesContinuousUnrealizedLossPositionTwelveMonthsorLongerFairValue	646140000	USD
CY2017Q4	mhld	Fixed Maturities Continuous Unrealized Loss Position12 Monthsor Longer Accumulated Loss FixedMaturitiesContinuousUnrealizedLossPosition12MonthsorLongerAccumulatedLoss	23953000	USD
CY2017Q4	mhld	Fixed Maturities Continuous Unrealized Loss Position Fair Value FixedMaturitiesContinuousUnrealizedLossPositionFairValue	1513470000	USD
CY2017Q4	mhld	Fixed Maturities Continuous Unrealized Loss Position Accumulated Loss FixedMaturitiesContinuousUnrealizedLossPositionAccumulatedLoss	31074000	USD
CY2017Q4	mhld	Fixed Securitiesin Unrealized Loss Positions Qualitative Disclosure Numberof Positions FixedSecuritiesinUnrealizedLossPositionsQualitativeDisclosureNumberofPositions	156	security
CY2017Q4	mhld	Investments Continuous Unrealized Loss Position Fair Value InvestmentsContinuousUnrealizedLossPositionFairValue	1513470000	USD
CY2017Q4	mhld	Investments Continuous Unrealized Loss Position Accumulated Loss InvestmentsContinuousUnrealizedLossPositionAccumulatedLoss	31074000	USD
CY2017Q4	mhld	Fixed Securitiesin Unrealized Loss Positions Qualitative Disclosure Numberof Positions Greaterthanor Equalto One Year FixedSecuritiesinUnrealizedLossPositionsQualitativeDisclosureNumberofPositionsGreaterthanorEqualtoOneYear	89	security
CY2017Q4	mhld	Investments Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value InvestmentsContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	646140000	USD
CY2017Q4	mhld	Investments Continuous Unrealized Loss Position12 Months Or Longer Aggregate Losses InvestmentsContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLosses	23953000	USD
	us-gaap	Other Than Temporary Impairment Losses Investments Portion Recognized In Earnings Net OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNet	479000	USD
CY2018Q3	mhld	Other Than Temporary Impairment Loss Debt Securities Available For Sale Recognizedin Earnings Number Of Positions OtherThanTemporaryImpairmentLossDebtSecuritiesAvailableForSaleRecognizedinEarningsNumberOfPositions	1	security
CY2017Q3	us-gaap	Other Than Temporary Impairment Losses Investments Portion Recognized In Earnings Net OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNet	0	USD
CY2018Q3	mhld	Fixed Maturities Amortized Cost Basis FixedMaturitiesAmortizedCostBasis	3900136000	USD
CY2018Q3	mhld	Fixed Maturities Fair Value FixedMaturitiesFairValue	3801294000	USD
CY2018Q3	mhld	Fixed Maturities Percentof Total Fair Value FixedMaturitiesPercentofTotalFairValue	1.000
CY2017Q4	mhld	Fixed Maturities Amortized Cost Basis FixedMaturitiesAmortizedCostBasis	3797098000	USD
CY2017Q4	mhld	Fixed Maturities Fair Value FixedMaturitiesFairValue	3833142000	USD
CY2017Q4	mhld	Fixed Maturities Percentof Total Fair Value FixedMaturitiesPercentofTotalFairValue	1.000
CY2018Q3	us-gaap	Other Investments OtherInvestments	22586000	USD
CY2018Q3	mhld	Other Investments Percent Of Total Fair Value OtherInvestmentsPercentOfTotalFairValue	1.000
CY2017Q4	us-gaap	Other Investments OtherInvestments	6600000	USD
CY2017Q4	mhld	Other Investments Percent Of Total Fair Value OtherInvestmentsPercentOfTotalFairValue	1.000
CY2018Q3	us-gaap	Investment Income Interest And Dividend InvestmentIncomeInterestAndDividend	35477000	USD
CY2017Q3	us-gaap	Investment Income Interest And Dividend InvestmentIncomeInterestAndDividend	32877000	USD
	us-gaap	Investment Income Interest And Dividend InvestmentIncomeInterestAndDividend	104793000	USD
	us-gaap	Investment Income Interest And Dividend InvestmentIncomeInterestAndDividend	97183000	USD
CY2018Q3	us-gaap	Investment Income Investment Expense InvestmentIncomeInvestmentExpense	1058000	USD
CY2017Q3	us-gaap	Investment Income Investment Expense InvestmentIncomeInvestmentExpense	1927000	USD
	us-gaap	Investment Income Investment Expense InvestmentIncomeInvestmentExpense	3245000	USD
	us-gaap	Investment Income Investment Expense InvestmentIncomeInvestmentExpense	5586000	USD
CY2018Q3	us-gaap	Investment Income Net InvestmentIncomeNet	34419000	USD
CY2017Q3	us-gaap	Investment Income Net InvestmentIncomeNet	30950000	USD
	us-gaap	Investment Income Net InvestmentIncomeNet	101548000	USD
CY2017	mhld	Investments Change In Gross Unrealized Gain Loss Net Of Deferred Income Tax Expense InvestmentsChangeInGrossUnrealizedGainLossNetOfDeferredIncomeTaxExpense	42605000	USD
CY2018Q3	mhld	Equity Securities Fv Ni Gain Loss EquitySecuritiesFvNiGainLoss	293000	USD
CY2017Q3	mhld	Equity Securities Fv Ni Gain Loss EquitySecuritiesFvNiGainLoss	5490000	USD
CY2018Q3	mhld	Equity Securities Fv Ni Realized Gain Loss EquitySecuritiesFvNiRealizedGainLoss	758000	USD
CY2017Q3	mhld	Equity Securities Fv Ni Realized Gain Loss EquitySecuritiesFvNiRealizedGainLoss	5490000	USD
CY2018Q3	mhld	Equity Securities Fvni Unrealized Gain Loss EquitySecuritiesFVNIUnrealizedGainLoss	-465000	USD
CY2017Q3	mhld	Equity Securities Fvni Unrealized Gain Loss EquitySecuritiesFVNIUnrealizedGainLoss	0	USD
	mhld	Equity Securities Fv Ni Gain Loss EquitySecuritiesFvNiGainLoss	1995000	USD
	us-gaap	Investment Income Net InvestmentIncomeNet	91597000	USD
CY2018Q3	mhld	Gross Realized Gains GrossRealizedGains	333000	USD
CY2018Q3	mhld	Gross Realized Losses GrossRealizedLosses	558000	USD
CY2018Q3	us-gaap	Realized Gain Loss On Marketable Securities Cost Method Investments And Other Investments RealizedGainLossOnMarketableSecuritiesCostMethodInvestmentsAndOtherInvestments	-225000	USD
CY2017Q3	mhld	Gross Realized Gains GrossRealizedGains	6856000	USD
CY2017Q3	mhld	Gross Realized Losses GrossRealizedLosses	997000	USD
CY2017Q3	us-gaap	Realized Gain Loss On Marketable Securities Cost Method Investments And Other Investments RealizedGainLossOnMarketableSecuritiesCostMethodInvestmentsAndOtherInvestments	5859000	USD
	mhld	Gross Realized Gains GrossRealizedGains	4974000	USD
	mhld	Gross Realized Losses GrossRealizedLosses	5256000	USD
	us-gaap	Realized Gain Loss On Marketable Securities Cost Method Investments And Other Investments RealizedGainLossOnMarketableSecuritiesCostMethodInvestmentsAndOtherInvestments	-282000	USD
	mhld	Gross Realized Gains GrossRealizedGains	9569000	USD
	mhld	Gross Realized Losses GrossRealizedLosses	1253000	USD
	us-gaap	Realized Gain Loss On Marketable Securities Cost Method Investments And Other Investments RealizedGainLossOnMarketableSecuritiesCostMethodInvestmentsAndOtherInvestments	8316000	USD
CY2018Q3	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	20198000	USD
	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	185089000	USD
CY2017Q3	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	30440000	USD
	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	116306000	USD
CY2018Q3	mhld	Investments Net Unrealized Gain Loss InvestmentsNetUnrealizedGainLoss	-119919000	USD
CY2017Q4	mhld	Investments Net Unrealized Gain Loss InvestmentsNetUnrealizedGainLoss	21967000	USD
CY2018Q3	us-gaap	Deferred Tax Liabilities Deferred Expense DeferredTaxLiabilitiesDeferredExpense	59000	USD
CY2017Q4	us-gaap	Deferred Tax Liabilities Deferred Expense DeferredTaxLiabilitiesDeferredExpense	78000	USD
CY2018Q3	mhld	Investments Gross Unrealized Gain Loss Net Of Deferred Income Tax Expense InvestmentsGrossUnrealizedGainLossNetOfDeferredIncomeTaxExpense	-119978000	USD
CY2017Q4	mhld	Investments Gross Unrealized Gain Loss Net Of Deferred Income Tax Expense InvestmentsGrossUnrealizedGainLossNetOfDeferredIncomeTaxExpense	21889000	USD
	mhld	Investments Change In Gross Unrealized Gain Loss Net Of Deferred Income Tax Expense InvestmentsChangeInGrossUnrealizedGainLossNetOfDeferredIncomeTaxExpense	-141867000	USD
CY2017Q3	us-gaap	Goodwill And Intangible Asset Impairment GoodwillAndIntangibleAssetImpairment	0	USD
	mhld	Equity Securities Fv Ni Gain Loss EquitySecuritiesFvNiGainLoss	5715000	USD
	mhld	Equity Securities Fv Ni Realized Gain Loss EquitySecuritiesFvNiRealizedGainLoss	1637000	USD
	mhld	Equity Securities Fv Ni Realized Gain Loss EquitySecuritiesFvNiRealizedGainLoss	5715000	USD
	mhld	Equity Securities Fvni Unrealized Gain Loss EquitySecuritiesFVNIUnrealizedGainLoss	358000	USD
	mhld	Equity Securities Fvni Unrealized Gain Loss EquitySecuritiesFVNIUnrealizedGainLoss	0	USD
CY2018Q3	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	169996000	USD
CY2017Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	94905000	USD
CY2018Q3	us-gaap	Restricted Investments RestrictedInvestments	3542944000	USD
CY2017Q4	us-gaap	Restricted Investments RestrictedInvestments	3631324000	USD
CY2018Q3	us-gaap	Restricted Cash And Investments RestrictedCashAndInvestments	3712940000	USD
CY2017Q4	us-gaap	Restricted Cash And Investments RestrictedCashAndInvestments	3726229000	USD
CY2017Q4	mhld	Assets Fair Value Disclosure Number Of Securities Priced For Fair Value AssetsFairValueDisclosureNumberOfSecuritiesPricedForFairValue	3	security
CY2016Q4	us-gaap	Goodwill Goodwill	57192000	USD
CY2016Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	20523000	USD
CY2016Q4	us-gaap	Intangible Assets Net Including Goodwill IntangibleAssetsNetIncludingGoodwill	77715000	USD
CY2017	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	2132000	USD
CY2017	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	2132000	USD
CY2017Q4	us-gaap	Goodwill Goodwill	57192000	USD
CY2017Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	18391000	USD
CY2017Q4	us-gaap	Intangible Assets Net Including Goodwill IntangibleAssetsNetIncludingGoodwill	75583000	USD
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	1387000	USD
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	1387000	USD
	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	57192000	USD
	us-gaap	Impairment Of Intangible Assets Excluding Goodwill ImpairmentOfIntangibleAssetsExcludingGoodwill	17004000	USD
	us-gaap	Goodwill And Intangible Asset Impairment GoodwillAndIntangibleAssetImpairment	74196000	USD
CY2018Q3	us-gaap	Goodwill Goodwill	0	USD
CY2018Q3	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	0	USD
CY2018Q3	us-gaap	Intangible Assets Net Including Goodwill IntangibleAssetsNetIncludingGoodwill	0	USD
CY2018Q3	us-gaap	Goodwill Gross GoodwillGross	58992000	USD
CY2018Q3	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	58992000	USD
CY2018Q3	us-gaap	Goodwill Goodwill	0	USD
CY2018Q3	mhld	Goodwill And Intangible Assets Gross GoodwillAndIntangibleAssetsGross	114919000	USD
CY2018Q3	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	38923000	USD
CY2018Q3	mhld	Impairment Of Intangible Assets Accumulated Impairment Loss ImpairmentOfIntangibleAssetsAccumulatedImpairmentLoss	75996000	USD
CY2018Q3	us-gaap	Intangible Assets Net Including Goodwill IntangibleAssetsNetIncludingGoodwill	0	USD
CY2017Q4	us-gaap	Goodwill Gross GoodwillGross	58992000	USD
CY2017Q4	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	1800000	USD
CY2017Q4	us-gaap	Goodwill Goodwill	57192000	USD
CY2017Q4	mhld	Goodwill And Intangible Assets Gross GoodwillAndIntangibleAssetsGross	114919000	USD
CY2017Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	37536000	USD
CY2017Q4	mhld	Impairment Of Intangible Assets Accumulated Impairment Loss ImpairmentOfIntangibleAssetsAccumulatedImpairmentLoss	1800000	USD
CY2017Q4	us-gaap	Intangible Assets Net Including Goodwill IntangibleAssetsNetIncludingGoodwill	75583000	USD
	us-gaap	Schedule Of Liability For Unpaid Claims And Claims Adjustment Expense ScheduleOfLiabilityForUnpaidClaimsAndClaimsAdjustmentExpense	Our reserve for loss and LAE comprises: <div style="line-height:100%;text-align:center;font-size:10pt;"><div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;margin-left:auto;margin-right:auto;width:99.80506822612085%;border-collapse:collapse;text-align:left;"><tr><td colspan="9"/></tr><tr><td style="width:70%;"/><td style="width:1%;"/><td style="width:1%;"/><td style="width:12%;"/><td style="width:1%;"/><td style="width:1%;"/><td style="width:1%;"/><td style="width:12%;"/><td style="width:1%;"/></tr><tr><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:8pt;"><span style="font-family:inherit;font-size:8pt;font-weight:bold;">September 30, 2018</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:8pt;"><span style="font-family:inherit;font-size:8pt;font-weight:bold;">December 31, 2017</span></div></td></tr><tr><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;padding-left:13px;text-indent:-14px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">Reserve for reported loss and LAE</span></div></td><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#ccffcc;border-top:1px solid #000000;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">$</span></div></td><td style="vertical-align:bottom;background-color:#ccffcc;padding-top:2px;padding-bottom:2px;border-top:1px solid #000000;"><div style="text-align:right;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><span>1,577,494</span></span></div></td><td style="vertical-align:bottom;background-color:#ccffcc;border-top:1px solid #000000;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#ccffcc;border-top:1px solid #000000;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">$</span></div></td><td style="vertical-align:bottom;background-color:#ccffcc;padding-top:2px;padding-bottom:2px;border-top:1px solid #000000;"><div style="text-align:right;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><span>1,393,560</span></span></div></td><td style="vertical-align:bottom;background-color:#ccffcc;border-top:1px solid #000000;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;padding-left:13px;text-indent:-14px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">Reserve for losses incurred but not reported ("IBNR")</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><span>1,274,191</span></span></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><span>993,162</span></span></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td></tr><tr><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;padding-left:13px;text-indent:-14px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">Reserve for loss and LAE</span></div></td><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#ccffcc;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">$</span></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#ccffcc;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><span>2,851,685</span></span></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#ccffcc;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#ccffcc;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">$</span></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#ccffcc;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><span>2,386,722</span></span></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;background-color:#ccffcc;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td></tr></table></div></div><div style="line-height:100%;padding-top:8px;text-align:left;text-indent:20px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">The following table represents a reconciliation of our beginning and ending gross and net loss and LAE reserves: </span></div><div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;margin-left:auto;margin-right:auto;width:99.80506822612085%;border-collapse:collapse;text-align:left;"><tr><td colspan="9"/></tr><tr><td style="width:70%;"/><td style="width:1%;"/><td style="width:1%;"/><td style="width:12%;"/><td style="width:1%;"/><td style="width:1%;"/><td style="width:1%;"/><td style="width:12%;"/><td style="width:1%;"/></tr><tr><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:8pt;"><span style="font-family:inherit;font-size:8pt;font-weight:bold;">For the Nine Months Ended September 30,</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;text-indent:2px;font-size:8pt;"><span style="font-family:inherit;font-size:8pt;font-weight:bold;">2018</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="3" style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;text-indent:2px;font-size:8pt;"><span style="font-family:inherit;font-size:8pt;font-weight:bold;">2017</span></div></td></tr><tr><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;padding-left:13px;text-indent:-14px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">Gross loss and LAE reserves, January 1</span></div></td><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#ccffcc;border-top:1px solid #000000;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">$</span></div></td><td style="vertical-align:bottom;background-color:#ccffcc;padding-top:2px;padding-bottom:2px;border-top:1px solid #000000;"><div style="text-align:right;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><span>2,386,722</span></span></div></td><td style="vertical-align:bottom;background-color:#ccffcc;border-top:1px solid #000000;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#ccffcc;border-top:1px solid #000000;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">$</span></div></td><td style="vertical-align:bottom;background-color:#ccffcc;padding-top:2px;padding-bottom:2px;border-top:1px solid #000000;"><div style="text-align:right;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><span>1,845,407</span></span></div></td><td style="vertical-align:bottom;background-color:#ccffcc;border-top:1px solid #000000;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;padding-left:13px;text-indent:-14px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">Less: reinsurance recoverable on unpaid losses, January 1</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><span>24,883</span></span></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><span>35,948</span></span></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td></tr><tr><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;padding-left:13px;text-indent:-14px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">Net loss and LAE reserves, January 1</span></div></td><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #000000;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><span>2,361,839</span></span></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;background-color:#ccffcc;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #000000;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><span>1,809,459</span></span></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;background-color:#ccffcc;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;padding-left:13px;text-indent:-14px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">Net incurred losses related to:</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td></tr><tr><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;padding-left:26px;text-indent:-14px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">Current year</span></div></td><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="2" style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><span>1,073,052</span></span></div></td><td style="vertical-align:bottom;background-color:#ccffcc;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="2" style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><span>979,416</span></span></div></td><td style="vertical-align:bottom;background-color:#ccffcc;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;padding-left:26px;text-indent:-14px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">Prior years</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><span>250,451</span></span></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><span>111,192</span></span></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td></tr><tr><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #000000;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><span>1,323,503</span></span></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;background-color:#ccffcc;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #000000;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><span>1,090,608</span></span></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;background-color:#ccffcc;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;padding-left:13px;text-indent:-14px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">Net paid losses related to:</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="3" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td></tr><tr><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;padding-left:26px;text-indent:-14px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">Current year</span></div></td><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="2" style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><span>(283,477</span></span></div></td><td style="vertical-align:bottom;background-color:#ccffcc;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">)</span></div></td><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="2" style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><span>(273,050</span></span></div></td><td style="vertical-align:bottom;background-color:#ccffcc;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">)</span></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;padding-left:26px;text-indent:-14px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">Prior years</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><span>(555,718</span></span></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">)</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><span>(501,799</span></span></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">)</span></div></td></tr><tr><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #000000;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><span>(839,195</span></span></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;background-color:#ccffcc;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">)</span></div></td><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #000000;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><span>(774,849</span></span></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;background-color:#ccffcc;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">)</span></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;padding-left:13px;text-indent:-14px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">Commuted recoverables</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:1px solid #000000;"><div style="text-align:right;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><span>19,929</span></span></div></td><td style="vertical-align:bottom;border-top:1px solid #000000;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:1px solid #000000;"><div style="text-align:right;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><span>—</span></span></div></td><td style="vertical-align:bottom;border-top:1px solid #000000;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td></tr><tr><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;padding-left:13px;text-indent:-14px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">Effect of foreign exchange movements</span></div></td><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #000000;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><span>(16,202</span></span></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;background-color:#ccffcc;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">)</span></div></td><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #000000;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><span>48,622</span></span></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;background-color:#ccffcc;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;padding-left:12px;text-indent:-12px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">Net loss and LAE reserves, September 30</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><span>2,849,874</span></span></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="2" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><span>2,173,840</span></span></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td></tr><tr><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;padding-left:13px;text-indent:-14px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">Reinsurance recoverable on unpaid losses, September 30</span></div></td><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="2" style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><span>1,811</span></span></div></td><td style="vertical-align:bottom;background-color:#ccffcc;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td><td style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td colspan="2" style="vertical-align:bottom;background-color:#ccffcc;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><span>45,643</span></span></div></td><td style="vertical-align:bottom;background-color:#ccffcc;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;padding-left:12px;text-indent:-12px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;font-weight:bold;">Gross loss and LAE reserves, September 30</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:1px solid #000000;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">$</span></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-top:2px;padding-bottom:2px;border-top:1px solid #000000;"><div style="text-align:right;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><span>2,851,685</span></span></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;border-top:1px solid #000000;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:1px solid #000000;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">$</span></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-top:2px;padding-bottom:2px;border-top:1px solid #000000;"><div style="text-align:right;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><span>2,219,483</span></span></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;border-top:1px solid #000000;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td></tr></table></div>
CY2018Q3	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Reported Claims Amount LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseReportedClaimsAmount	1577494000	USD
CY2017Q4	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Reported Claims Amount LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseReportedClaimsAmount	1393560000	USD
CY2018Q3	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Incurred But Not Reported Ibnr Claims Amount LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseIncurredButNotReportedIBNRClaimsAmount	1274191000	USD
CY2017Q4	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Incurred But Not Reported Ibnr Claims Amount LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseIncurredButNotReportedIBNRClaimsAmount	993162000	USD
CY2018Q3	us-gaap	Liability For Claims And Claims Adjustment Expense LiabilityForClaimsAndClaimsAdjustmentExpense	2851685000	USD
CY2017Q4	us-gaap	Liability For Claims And Claims Adjustment Expense LiabilityForClaimsAndClaimsAdjustmentExpense	2386722000	USD
CY2017Q4	us-gaap	Liability For Claims And Claims Adjustment Expense LiabilityForClaimsAndClaimsAdjustmentExpense	2386722000	USD
CY2016Q4	us-gaap	Liability For Claims And Claims Adjustment Expense LiabilityForClaimsAndClaimsAdjustmentExpense	1845407000	USD
CY2017Q4	us-gaap	Reinsurance Recoverables ReinsuranceRecoverables	24883000	USD
CY2016Q4	us-gaap	Reinsurance Recoverables ReinsuranceRecoverables	35948000	USD
CY2017Q4	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Net LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseNet	2361839000	USD
CY2016Q4	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Net LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseNet	1809459000	USD
	us-gaap	Supplemental Information For Property Casualty Insurance Underwriters Current Year Claims And Claims Adjustment Expense SupplementalInformationForPropertyCasualtyInsuranceUnderwritersCurrentYearClaimsAndClaimsAdjustmentExpense	1073052000	USD
	us-gaap	Supplemental Information For Property Casualty Insurance Underwriters Current Year Claims And Claims Adjustment Expense SupplementalInformationForPropertyCasualtyInsuranceUnderwritersCurrentYearClaimsAndClaimsAdjustmentExpense	979416000	USD
	us-gaap	Supplemental Information For Property Casualty Insurance Underwriters Prior Year Claims And Claims Adjustment Expense SupplementalInformationForPropertyCasualtyInsuranceUnderwritersPriorYearClaimsAndClaimsAdjustmentExpense	250451000	USD
	us-gaap	Supplemental Information For Property Casualty Insurance Underwriters Prior Year Claims And Claims Adjustment Expense SupplementalInformationForPropertyCasualtyInsuranceUnderwritersPriorYearClaimsAndClaimsAdjustmentExpense	111192000	USD
	us-gaap	Policyholder Benefits And Claims Incurred Net PolicyholderBenefitsAndClaimsIncurredNet	1323503000	USD
	us-gaap	Policyholder Benefits And Claims Incurred Net PolicyholderBenefitsAndClaimsIncurredNet	1090608000	USD
	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Claims Paid Current Year1 LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidCurrentYear1	283477000	USD
	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Claims Paid Current Year1 LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidCurrentYear1	273050000	USD
	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Claims Paid Prior Years1 LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidPriorYears1	555718000	USD
	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Claims Paid Prior Years1 LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidPriorYears1	501799000	USD
	us-gaap	Payments For Losses And Loss Adjustment Expense PaymentsForLossesAndLossAdjustmentExpense	839195000	USD
	us-gaap	Payments For Losses And Loss Adjustment Expense PaymentsForLossesAndLossAdjustmentExpense	774849000	USD
	mhld	Liability For Unpaid Claims And Claims Adjustment Expense Commuted Reinsurance Recoverable LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseCommutedReinsuranceRecoverable	19929000	USD
	mhld	Liability For Unpaid Claims And Claims Adjustment Expense Commuted Reinsurance Recoverable LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseCommutedReinsuranceRecoverable	0	USD
	mhld	Liability For Unpaid Claims And Claims Adjustment Expense Foreign Currency Transaction And Translation Adjustment LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseForeignCurrencyTransactionAndTranslationAdjustment	-16202000	USD
	mhld	Liability For Unpaid Claims And Claims Adjustment Expense Foreign Currency Transaction And Translation Adjustment LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseForeignCurrencyTransactionAndTranslationAdjustment	48622000	USD
CY2018Q3	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Net LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseNet	2849874000	USD
CY2017Q3	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Net LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseNet	2173840000	USD
CY2018Q3	us-gaap	Reinsurance Recoverables ReinsuranceRecoverables	1811000	USD
CY2017Q3	us-gaap	Reinsurance Recoverables ReinsuranceRecoverables	45643000	USD
CY2018Q3	us-gaap	Liability For Claims And Claims Adjustment Expense LiabilityForClaimsAndClaimsAdjustmentExpense	2851685000	USD
CY2017Q3	us-gaap	Liability For Claims And Claims Adjustment Expense LiabilityForClaimsAndClaimsAdjustmentExpense	2219483000	USD
CY2018Q3	mhld	Liabilityfor Unpaid Claimsand Claims Adjustment Expense Period Increase Decrease Netof Commission Changes LiabilityforUnpaidClaimsandClaimsAdjustmentExpensePeriodIncreaseDecreaseNetofCommissionChanges	212473000	USD
	mhld	Liabilityfor Unpaid Claimsand Claims Adjustment Expense Period Increase Decrease Netof Commission Changes LiabilityforUnpaidClaimsandClaimsAdjustmentExpensePeriodIncreaseDecreaseNetofCommissionChanges	250451000	USD
CY2017Q3	mhld	Liabilityfor Unpaid Claimsand Claims Adjustment Expense Period Increase Decrease Netof Commission Changes LiabilityforUnpaidClaimsandClaimsAdjustmentExpensePeriodIncreaseDecreaseNetofCommissionChanges	64044000	USD
	mhld	Liabilityfor Unpaid Claimsand Claims Adjustment Expense Period Increase Decrease Netof Commission Changes LiabilityforUnpaidClaimsandClaimsAdjustmentExpensePeriodIncreaseDecreaseNetofCommissionChanges	111192000	USD
CY2018Q3	us-gaap	Loans And Leases Receivable Related Parties LoansAndLeasesReceivableRelatedParties	167975000	USD
CY2018Q3	us-gaap	Reinsurance Recoverables ReinsuranceRecoverables	1811000	USD
CY2017Q4	us-gaap	Reinsurance Recoverables ReinsuranceRecoverables	24883000	USD
CY2018Q3	us-gaap	Reinsurance Recoverables Allowance ReinsuranceRecoverablesAllowance	0	USD
CY2018Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.05
CY2018Q3	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-229132000	USD
CY2017Q3	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-45146000	USD
CY2018Q3	us-gaap	Income Loss From Continuing Operations Attributable To Noncontrolling Entity IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity	62000	USD
CY2017Q3	us-gaap	Income Loss From Continuing Operations Attributable To Noncontrolling Entity IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity	-3000	USD
CY2018Q3	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	-229194000	USD
CY2017Q3	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	-45143000	USD
CY2018Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	-71100000	USD
CY2017Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	-9908000	USD
CY2018Q3	us-gaap	Net Income Loss NetIncomeLoss	-300294000	USD
CY2017Q3	us-gaap	Net Income Loss NetIncomeLoss	-55051000	USD
CY2018Q3	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	8000	USD
CY2017Q3	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	6000	USD
CY2018Q3	us-gaap	Undistributed Earnings Loss Available To Common Shareholders Basic UndistributedEarningsLossAvailableToCommonShareholdersBasic	-308847000	USD
CY2017Q3	us-gaap	Undistributed Earnings Loss Available To Common Shareholders Basic UndistributedEarningsLossAvailableToCommonShareholdersBasic	-63602000	USD
CY2018Q3	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	83089172	shares
CY2017Q3	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	85859201	shares
CY2018Q3	us-gaap	Income Loss From Continuing Operations Per Basic And Diluted Share IncomeLossFromContinuingOperationsPerBasicAndDilutedShare	-2.86
CY2017Q3	us-gaap	Income Loss From Continuing Operations Per Basic And Diluted Share IncomeLossFromContinuingOperationsPerBasicAndDilutedShare	-0.62
CY2018Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic And Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicAndDilutedShare	-0.86
CY2017Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic And Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicAndDilutedShare	-0.12
CY2018Q3	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-3.72
CY2017Q3	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-0.74
	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-230873000	USD
	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-27828000	USD
	us-gaap	Income Loss From Continuing Operations Attributable To Noncontrolling Entity IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity	180000	USD
	us-gaap	Income Loss From Continuing Operations Attributable To Noncontrolling Entity IncomeLossFromContinuingOperationsAttributableToNoncontrollingEntity	-34000	USD
	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	-231053000	USD
	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	-27794000	USD
	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	-44336000	USD
	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	-17060000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-275389000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-44854000	USD
	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	17000	USD
	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	17000	USD
	us-gaap	Undistributed Earnings Loss Available To Common Shareholders Basic UndistributedEarningsLossAvailableToCommonShareholdersBasic	-301042000	USD
	us-gaap	Undistributed Earnings Loss Available To Common Shareholders Basic UndistributedEarningsLossAvailableToCommonShareholdersBasic	-65482000	USD
	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	83085441	shares
	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	86256481	shares
	us-gaap	Income Loss From Continuing Operations Per Basic And Diluted Share IncomeLossFromContinuingOperationsPerBasicAndDilutedShare	-3.09
	us-gaap	Income Loss From Continuing Operations Per Basic And Diluted Share IncomeLossFromContinuingOperationsPerBasicAndDilutedShare	-0.56
	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic And Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicAndDilutedShare	-0.53
	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic And Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicAndDilutedShare	-0.20
	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-3.62
	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-0.76
CY2018Q3	mhld	Share Capital Shares Authorized ShareCapitalSharesAuthorized	150000000	shares
CY2018Q3	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	87932287	shares
CY2018Q3	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	82942737	shares
CY2018Q3	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	18600000	shares
CY2018Q3	mhld	Shares Undesignated SharesUndesignated	43467713	shares
	us-gaap	Shares Paid For Tax Withholding For Share Based Compensation SharesPaidForTaxWithholdingForShareBasedCompensation	29391	shares
CY2017	us-gaap	Shares Paid For Tax Withholding For Share Based Compensation SharesPaidForTaxWithholdingForShareBasedCompensation	38122	shares
	mhld	Shares Paid For Tax Withholding For Share Based Compensation Average Cost Per Share SharesPaidForTaxWithholdingForShareBasedCompensationAverageCostPerShare	6.57
CY2017	mhld	Shares Paid For Tax Withholding For Share Based Compensation Average Cost Per Share SharesPaidForTaxWithholdingForShareBasedCompensationAverageCostPerShare	15.06
CY2018Q3	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	205000	shares
CY2017	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	2015700	shares
CY2018Q3	us-gaap	Treasury Stock Acquired Average Cost Per Share TreasuryStockAcquiredAverageCostPerShare	3.31
CY2017	us-gaap	Treasury Stock Acquired Average Cost Per Share TreasuryStockAcquiredAverageCostPerShare	7.11
CY2018Q3	us-gaap	Stock Repurchase Program Remaining Authorized Repurchase Amount1 StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1	74245000	USD
CY2017Q4	us-gaap	Stock Repurchase Program Remaining Authorized Repurchase Amount1 StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1	74924000	USD
CY2018Q3	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	-20198000	USD
CY2018Q3	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	-785000	USD
CY2018Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-19413000	USD
CY2017Q3	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	14166000	USD
CY2017Q3	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	3650000	USD
CY2017Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	10516000	USD
	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	-129784000	USD
	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	-40000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-129744000	USD
	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	30000000	USD
	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	-1123000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	31123000	USD

Files In Submission

Name	View Source	Status
0001412100-18-000058-index-headers.html	Edgar Link	pending
0001412100-18-000058-index.html	Edgar Link	pending
0001412100-18-000058.txt	Edgar Link	pending
0001412100-18-000058-xbrl.zip	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
MetaLinks.json	Edgar Link	pending
mhld-20180930.xsd	Edgar Link	pending
mhld-20180930_cal.xml	Edgar Link	unprocessable
mhld-20180930_def.xml	Edgar Link	unprocessable
mhld-20180930_lab.xml	Edgar Link	unprocessable
mhld-20180930_pre.xml	Edgar Link	unprocessable
q3201810q.htm	Edgar Link	pending
q3201810q_htm.xml	Edgar Link	completed
q32018exhibit-311.htm	Edgar Link	pending
q32018exhibit-312.htm	Edgar Link	pending
q32018exhibit-321.htm	Edgar Link	pending
q32018exhibit-322.htm	Edgar Link	pending
q32018exhibit101-aelqs.htm	Edgar Link	pending
q32018exhibit991-ceoar.htm	Edgar Link	pending
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report.css	Edgar Link	pending
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$MHLD
Maiden Holdings, Ltd. Stock $mhld

2018 Q4 Form 10-Q Financial Statement

#000141210018000058 Filed on November 09, 2018

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$MHLD Maiden Holdings, Ltd. Stock $mhld

2018 Q4 Form 10-Q Financial Statement

#000141210018000058 Filed on November 09, 2018

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$MHLD
Maiden Holdings, Ltd. Stock $mhld