$AIZ
ASSURANT, INC. Stock $aiz

$aiz Overview Financials Valuation SEC Filings Company Website

2020 Q2 Form 10-Q Financial Statement

#000126723820000040 Filed on August 07, 2020

Income Statement

Concept	2020 Q2	2019 Q2
Revenue	$2.352B	$2.546B
YoY Change	-7.6%	38.97%
Cost Of Revenue	$523.6M	$687.0M
YoY Change	-23.78%	40.03%
Gross Profit	$1.828B	$1.859B
YoY Change	-1.62%	38.58%
Gross Profit Margin	77.74%	73.01%
Selling, General & Admin	$725.4M	$823.7M
YoY Change	-11.93%	6.48%
% of Gross Profit	39.67%	44.32%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$31.50M	$30.40M
YoY Change	3.62%
% of Gross Profit	1.72%	1.64%
Operating Expenses	$725.4M	$823.7M
YoY Change	-11.93%	6.48%
Operating Profit	$1.103B	$1.035B
YoY Change	6.59%	82.34%
Interest Expense	$26.70M	$26.50M
YoY Change	0.75%	1.92%
% of Operating Profit	2.42%	2.56%
Other Income/Expense, Net
YoY Change
Pretax Income	$209.3M	$183.3M
YoY Change	14.18%	134.1%
Income Tax	$44.60M	$40.70M
% Of Pretax Income	21.31%	22.2%
Net Earnings	$178.1M	$144.1M
YoY Change	23.59%	115.07%
Net Earnings / Revenue	7.57%	5.66%
Basic Earnings Per Share	$2.87	$2.24
Diluted Earnings Per Share	$2.81	$2.21
COMMON SHARES
Basic Shares Outstanding	60.36M shares	62.22M shares
Diluted Shares Outstanding	63.35M shares	65.29M shares

Balance Sheet

Concept	2020 Q2	2019 Q2
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents	$2.108B	$1.490B
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	$450.1M	$419.2M
YoY Change	7.37%	13.11%
Goodwill	$2.441B	$2.338B
YoY Change	4.42%	-1.32%
Intangibles	$582.1M	$564.1M
YoY Change	3.19%	-15.15%
Long-Term Investments	$16.32B	$16.52B
YoY Change	-1.2%	12.4%
Other Assets
YoY Change
Total Long-Term Assets
YoY Change
TOTAL ASSETS
Total Short-Term Assets
Total Long-Term Assets
Total Assets	$44.23B	$43.14B
YoY Change	2.54%	1.84%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$2.417B	$2.514B
YoY Change	-3.86%	-3.72%
Accrued Expenses		$85.00M
YoY Change
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00
YoY Change
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$5.560B	$5.769B
YoY Change	-3.62%	-10.17%
LONG-TERM LIABILITIES
Long-Term Debt	$2.208B	$2.007B
YoY Change	10.01%	0.1%
Other Long-Term Liabilities	$1.541B	$1.762B
YoY Change	-12.54%	49.2%
Total Long-Term Liabilities	$3.749B	$3.769B
YoY Change	-0.53%	18.3%
TOTAL LIABILITIES
Total Short-Term Liabilities	$5.560B	$5.769B
Total Long-Term Liabilities	$3.749B	$3.769B
Total Liabilities	$38.25B	$37.38B
YoY Change	2.33%	0.95%
SHAREHOLDERS EQUITY
Retained Earnings	$6.194B	$5.981B
YoY Change	3.57%	2.3%
Common Stock	$4.552B	$4.511B
YoY Change	0.91%	1.11%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$5.350B	$5.093B
YoY Change	5.05%	4.79%
Treasury Stock Shares	102.4M shares	100.3M shares
Shareholders Equity	$5.968B	$5.730B
YoY Change
Total Liabilities & Shareholders Equity	$44.23B	$43.14B
YoY Change	2.54%	1.84%

Cashflow Statement

Concept	2020 Q2	2019 Q2
OPERATING ACTIVITIES
Net Income	$178.1M	$144.1M
YoY Change	23.59%	115.07%
Depreciation, Depletion And Amortization	$31.50M	$30.40M
YoY Change	3.62%
Cash From Operating Activities	$415.9M	$479.0M
YoY Change	-13.17%	112.23%
INVESTING ACTIVITIES
Capital Expenditures	-$24.60M	-$25.40M
YoY Change	-3.15%	17.59%
Acquisitions
YoY Change
Other Investing Activities	-$189.5M	-$137.0M
YoY Change	38.32%	-91.29%
Cash From Investing Activities	-$214.1M	-$162.4M
YoY Change	31.83%	-89.81%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-79.40M	-102.3M
YoY Change	-22.39%	-134.04%
NET CHANGE
Cash From Operating Activities	415.9M	479.0M
Cash From Investing Activities	-214.1M	-162.4M
Cash From Financing Activities	-79.40M	-102.3M
Net Change In Cash	122.4M	214.3M
YoY Change	-42.88%	-120.07%
FREE CASH FLOW
Cash From Operating Activities	$415.9M	$479.0M
Capital Expenditures	-$24.60M	-$25.40M
Free Cash Flow	$440.5M	$504.4M
YoY Change	-12.67%	103.96%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
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	aiz	Changein Noncredit Related Impairment Losses Tax ChangeinNoncreditRelatedImpairmentLossesTax	-100000	USD
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	aiz	Changein Noncredit Related Impairment Losses Tax ChangeinNoncreditRelatedImpairmentLossesTax	300000	USD
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CY2020Q2	aiz	Other Investments Allowance For Credit Losses OtherInvestmentsAllowanceForCreditLosses	1400000	USD
	dei	Amendment Flag AmendmentFlag	false
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	dei	City Area Code CityAreaCode	212
	dei	Local Phone Number LocalPhoneNumber	859-7000
	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
	dei	Document Type DocumentType	10-Q
	dei	Document Quarterly Report DocumentQuarterlyReport	true
	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
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	dei	Entity Registrant Name EntityRegistrantName	Assurant, Inc.
	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
	dei	Entity File Number EntityFileNumber	001-31978
	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	39-1126612
	dei	Entity Address Address Line1 EntityAddressAddressLine1	28 Liberty Street
	dei	Entity Address Address Line2 EntityAddressAddressLine2	41st Floor
	dei	Entity Address City Or Town EntityAddressCityOrTown	New York
	dei	Entity Address State Or Province EntityAddressStateOrProvince	NY
	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	10005
	dei	Entity Small Business EntitySmallBusiness	false
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	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	1623600000	USD
CY2019Q2	us-gaap	Benefits Losses And Expenses BenefitsLossesAndExpenses	2362200000	USD
CY2019Q2	us-gaap	Policyholder Benefits And Claims Incurred Net PolicyholderBenefitsAndClaimsIncurredNet	687000000.0	USD
	us-gaap	Policyholder Benefits And Claims Incurred Net PolicyholderBenefitsAndClaimsIncurredNet	1199300000	USD
	us-gaap	Revenues Revenues	5037200000	USD
	us-gaap	Policyholder Benefits And Claims Incurred Net PolicyholderBenefitsAndClaimsIncurredNet	1301700000	USD
CY2020Q2	aiz	Amortization Of Deferred Acquisition Costs And Value Of Business Acquired AmortizationOfDeferredAcquisitionCostsAndValueOfBusinessAcquired	885300000	USD
CY2019Q2	aiz	Amortization Of Deferred Acquisition Costs And Value Of Business Acquired AmortizationOfDeferredAcquisitionCostsAndValueOfBusinessAcquired	815800000	USD
CY2019Q2	aiz	Investment Related Charges Netof Derivative Gains InvestmentRelatedChargesNetofDerivativeGains	9200000	USD
	aiz	Investment Related Charges Netof Derivative Gains InvestmentRelatedChargesNetofDerivativeGains	5900000	USD
	aiz	Investment Related Charges Netof Derivative Gains InvestmentRelatedChargesNetofDerivativeGains	9400000	USD
CY2020Q2	us-gaap	Interest Expense InterestExpense	26700000	USD
CY2019Q2	us-gaap	Interest Expense InterestExpense	26500000	USD
	us-gaap	Interest Expense InterestExpense	52200000	USD
	us-gaap	Interest Expense InterestExpense	53000000.0	USD
	us-gaap	Benefits Losses And Expenses BenefitsLossesAndExpenses	4701200000	USD
	us-gaap	Benefits Losses And Expenses BenefitsLossesAndExpenses	4580800000	USD
CY2020Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	226800000	USD
CY2019Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	183300000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	336000000.0	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	400300000	USD
CY2020Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	48400000	USD
CY2019Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	40700000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1800000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	89100000	USD
CY2020Q2	us-gaap	Profit Loss ProfitLoss	178400000	USD
CY2019Q2	us-gaap	Profit Loss ProfitLoss	142600000	USD
	us-gaap	Profit Loss ProfitLoss	334200000	USD
	us-gaap	Profit Loss ProfitLoss	311200000	USD
CY2020Q2	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	300000	USD
CY2019Q2	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-1500000	USD
	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	1400000	USD
	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	1400000	USD
CY2020Q2	us-gaap	Net Income Loss NetIncomeLoss	178100000	USD
CY2019Q2	us-gaap	Net Income Loss NetIncomeLoss	144100000	USD
	us-gaap	Net Income Loss NetIncomeLoss	332800000	USD
	us-gaap	Net Income Loss NetIncomeLoss	309800000	USD
CY2020Q2	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	4600000	USD
CY2020Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.87
CY2019Q2	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	4600000	USD
	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	9300000	USD
	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	9300000	USD
CY2020Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.81
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	323500000	USD
CY2019Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.21
	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-20100000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	300500000	USD
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	5.24
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	4.73
CY2020Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	173500000	USD
CY2019Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	139500000	USD
CY2019Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.24
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	5.35
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	4.82
CY2020Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	60363577	shares
CY2019Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	62222090	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	60483244	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	62407429	shares
CY2020Q2	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	2983612	shares
CY2019Q2	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	3066357	shares
	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	2990068	shares
	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	3153501	shares
CY2020Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	63347189	shares
CY2019Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	65288447	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	63473312	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	65560930	shares
CY2020Q2	us-gaap	Profit Loss ProfitLoss	178400000	USD
CY2019Q2	us-gaap	Profit Loss ProfitLoss	142600000	USD
	us-gaap	Profit Loss ProfitLoss	334200000	USD
	us-gaap	Profit Loss ProfitLoss	311200000	USD
CY2020Q2	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	434700000	USD
CY2019Q2	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	228500000	USD
	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	132600000	USD
	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	477400000	USD
CY2020Q2	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	-600000	USD
CY2019Q2	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	-2900000	USD
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	-1200000	USD
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	-3200000	USD
CY2020Q2	aiz	Changein Noncredit Related Impairment Losses Net ChangeinNoncreditRelatedImpairmentLossesNet	-1500000	USD
CY2019Q2	aiz	Changein Noncredit Related Impairment Losses Net ChangeinNoncreditRelatedImpairmentLossesNet	-700000	USD
	aiz	Changein Noncredit Related Impairment Losses Net ChangeinNoncreditRelatedImpairmentLossesNet	1200000	USD
	aiz	Changein Noncredit Related Impairment Losses Net ChangeinNoncreditRelatedImpairmentLossesNet	-500000	USD
CY2020Q2	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	46600000	USD
CY2019Q2	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-1200000	USD
	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	9000000.0	USD
CY2020Q2	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	1700000	USD
CY2019Q2	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-200000	USD
	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-47300000	USD
	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-400000	USD
CY2020Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	480500000	USD
CY2019Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	225300000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	157400000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	484100000	USD
CY2020Q2	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	658900000	USD
CY2019Q2	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	367900000	USD
	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	491600000	USD
	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	795300000	USD
CY2020Q2	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	300000	USD
CY2019Q2	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	-1500000	USD
	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	1400000	USD
	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	1400000	USD
CY2020Q2	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	658600000	USD
CY2019Q2	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	369400000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	490200000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	793900000	USD
CY2020Q1	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	5386200000	USD
CY2020Q2	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	0	USD
CY2020Q2	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	14900000	USD
CY2020Q2	us-gaap	Dividends Common Stock DividendsCommonStock	39600000	USD
CY2020Q2	aiz	Decrease To Equity From Acquisition Of Common Stock DecreaseToEquityFromAcquisitionOfCommonStock	30900000	USD
CY2020Q2	us-gaap	Profit Loss ProfitLoss	178400000	USD
CY2020Q2	us-gaap	Dividends Preferred Stock Cash DividendsPreferredStockCash	4600000	USD
CY2020Q2	us-gaap	Minority Interest Period Increase Decrease MinorityInterestPeriodIncreaseDecrease	-400000	USD
CY2020Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	480500000	USD
CY2020Q2	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	5984500000	USD
CY2019Q1	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	5471700000	USD
CY2019Q2	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	0	USD
CY2019Q2	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	14200000	USD
CY2019Q2	us-gaap	Dividends Common Stock DividendsCommonStock	38300000	USD
CY2019Q2	aiz	Decrease To Equity From Acquisition Of Common Stock DecreaseToEquityFromAcquisitionOfCommonStock	51100000	USD
CY2019Q2	us-gaap	Profit Loss ProfitLoss	142600000	USD
CY2019Q2	us-gaap	Dividends Preferred Stock Cash DividendsPreferredStockCash	4600000	USD
CY2019Q2	us-gaap	Minority Interest Period Increase Decrease MinorityInterestPeriodIncreaseDecrease	500000	USD
CY2019Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	225300000	USD
CY2019Q2	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	5760300000	USD
CY2019Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	5682100000	USD
	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	3900000	USD
	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	26400000	USD
	us-gaap	Dividends Common Stock DividendsCommonStock	77600000	USD
	aiz	Decrease To Equity From Acquisition Of Common Stock DecreaseToEquityFromAcquisitionOfCommonStock	100700000	USD
	us-gaap	Profit Loss ProfitLoss	334200000	USD
	us-gaap	Dividends Preferred Stock Cash DividendsPreferredStockCash	9300000	USD
	us-gaap	Minority Interest Period Increase Decrease MinorityInterestPeriodIncreaseDecrease	-11500000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	157400000	USD
CY2020Q2	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	5984500000	USD
CY2018Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	5133900000	USD
	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	3500000	USD
	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	25700000	USD
	us-gaap	Dividends Common Stock DividendsCommonStock	75700000	USD
	aiz	Decrease To Equity From Acquisition Of Common Stock DecreaseToEquityFromAcquisitionOfCommonStock	116300000	USD
	us-gaap	Profit Loss ProfitLoss	311200000	USD
	us-gaap	Dividends Preferred Stock Cash DividendsPreferredStockCash	9300000	USD
	us-gaap	Minority Interest Period Increase Decrease MinorityInterestPeriodIncreaseDecrease	3200000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	484100000	USD
CY2019Q2	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	5760300000	USD
	us-gaap	Net Income Loss NetIncomeLoss	332800000	USD
	us-gaap	Net Income Loss NetIncomeLoss	309800000	USD
	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	162200000	USD
	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	53600000	USD
	aiz	Amortizationof Deferred Gainon Disposalof Businesses AmortizationofDeferredGainonDisposalofBusinesses	6600000	USD
	aiz	Amortizationof Deferred Gainon Disposalof Businesses AmortizationofDeferredGainonDisposalofBusinesses	12500000	USD
	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	65000000.0	USD
	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	60100000	USD
	us-gaap	Marketable Securities Gain Loss Excluding Other Than Temporary Impairments MarketableSecuritiesGainLossExcludingOtherThanTemporaryImpairments	-71200000	USD
	us-gaap	Marketable Securities Gain Loss Excluding Other Than Temporary Impairments MarketableSecuritiesGainLossExcludingOtherThanTemporaryImpairments	46600000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	26400000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	25700000	USD
	us-gaap	Impairment Of Intangible Assets Excluding Goodwill ImpairmentOfIntangibleAssetsExcludingGoodwill	0	USD
	us-gaap	Impairment Of Intangible Assets Excluding Goodwill ImpairmentOfIntangibleAssetsExcludingGoodwill	14600000	USD
	aiz	Noncash Equity Method Investment Charges Netof Derivative Gains NoncashEquityMethodInvestmentChargesNetofDerivativeGains	1700000	USD
	aiz	Noncash Equity Method Investment Charges Netof Derivative Gains NoncashEquityMethodInvestmentChargesNetofDerivativeGains	9400000	USD
	aiz	Change In Insurance Policy Reserves And Expenses ChangeInInsurancePolicyReservesAndExpenses	139900000	USD
	aiz	Change In Insurance Policy Reserves And Expenses ChangeInInsurancePolicyReservesAndExpenses	501000000.0	USD
	aiz	Change In Premiums And Accounts Receivable ChangeInPremiumsAndAccountsReceivable	-202700000	USD
	aiz	Change In Premiums And Accounts Receivable ChangeInPremiumsAndAccountsReceivable	99400000	USD
	aiz	Increase Decreasein Commissions Payable IncreaseDecreaseinCommissionsPayable	-55800000	USD
	aiz	Increase Decreasein Commissions Payable IncreaseDecreaseinCommissionsPayable	6900000	USD
	us-gaap	Increase Decrease In Reinsurance Recoverable IncreaseDecreaseInReinsuranceRecoverable	-38500000	USD
	us-gaap	Increase Decrease In Reinsurance Recoverable IncreaseDecreaseInReinsuranceRecoverable	-85100000	USD
	us-gaap	Increase Decrease In Reinsurance Payables IncreaseDecreaseInReinsurancePayables	13200000	USD
	us-gaap	Increase Decrease In Reinsurance Payables IncreaseDecreaseInReinsurancePayables	-12700000	USD
	us-gaap	Increase Decrease In Funds Held Under Reinsurance Agreements IncreaseDecreaseInFundsHeldUnderReinsuranceAgreements	-29800000	USD
	us-gaap	Increase Decrease In Funds Held Under Reinsurance Agreements IncreaseDecreaseInFundsHeldUnderReinsuranceAgreements	-34400000	USD
	aiz	Change In Deferred Acquisition Costs And Value Of Business Acquired ChangeInDeferredAcquisitionCostsAndValueOfBusinessAcquired	145200000	USD
	aiz	Change In Deferred Acquisition Costs And Value Of Business Acquired ChangeInDeferredAcquisitionCostsAndValueOfBusinessAcquired	438600000	USD
	us-gaap	Increase Decrease In Income Taxes IncreaseDecreaseInIncomeTaxes	-214200000	USD
	us-gaap	Increase Decrease In Income Taxes IncreaseDecreaseInIncomeTaxes	30100000	USD
	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	369300000	USD
	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	-190700000	USD
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	100000	USD
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-14100000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	292200000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	725700000	USD
	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	403400000	USD
	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	1262300000	USD
	aiz	Proceeds From The Sale Of Equity Securities ProceedsFromTheSaleOfEquitySecurities	11200000	USD
	aiz	Proceeds From The Sale Of Equity Securities ProceedsFromTheSaleOfEquitySecurities	52500000	USD
	us-gaap	Proceeds From Sale Of Other Investments ProceedsFromSaleOfOtherInvestments	35800000	USD
	us-gaap	Proceeds From Sale Of Other Investments ProceedsFromSaleOfOtherInvestments	22100000	USD
	us-gaap	Proceeds From Hedge Investing Activities ProceedsFromHedgeInvestingActivities	22000000.0	USD
	us-gaap	Proceeds From Hedge Investing Activities ProceedsFromHedgeInvestingActivities	0	USD
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	453200000	USD
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	295900000	USD
	us-gaap	Proceeds From Sale And Collection Of Mortgage Notes Receivable ProceedsFromSaleAndCollectionOfMortgageNotesReceivable	20600000	USD
	us-gaap	Proceeds From Sale And Collection Of Mortgage Notes Receivable ProceedsFromSaleAndCollectionOfMortgageNotesReceivable	32200000	USD
	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	995600000	USD
	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	1731700000	USD
	aiz	Payments To Acquire Equity Securities PaymentsToAcquireEquitySecurities	26900000	USD
	aiz	Payments To Acquire Equity Securities PaymentsToAcquireEquitySecurities	43800000	USD
	us-gaap	Payments To Acquire Mortgage Notes Receivable PaymentsToAcquireMortgageNotesReceivable	3000000.0	USD
	us-gaap	Payments To Acquire Mortgage Notes Receivable PaymentsToAcquireMortgageNotesReceivable	52300000	USD
	us-gaap	Payments To Acquire Other Investments PaymentsToAcquireOtherInvestments	46700000	USD
	us-gaap	Payments To Acquire Other Investments PaymentsToAcquireOtherInvestments	24900000	USD
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	46200000	USD
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	57800000	USD
	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	135800000	USD
	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	0	USD
	aiz	Equity Method Investment Payment On Divestment EquityMethodInvestmentPaymentOnDivestment	73300000	USD
	aiz	Equity Method Investment Payment On Divestment EquityMethodInvestmentPaymentOnDivestment	0	USD
	aiz	Purchasesof Investmentsby Special Purpose Entities PurchasesofInvestmentsbySpecialPurposeEntities	312500000	USD
	aiz	Purchasesof Investmentsby Special Purpose Entities PurchasesofInvestmentsbySpecialPurposeEntities	874000000.0	USD
	aiz	Proceedsfrom Salesand Redemptionsof Investmentsby Special Purpose Entities ProceedsfromSalesandRedemptionsofInvestmentsbySpecialPurposeEntities	502700000	USD
	aiz	Proceedsfrom Salesand Redemptionsof Investmentsby Special Purpose Entities ProceedsfromSalesandRedemptionsofInvestmentsbySpecialPurposeEntities	488500000	USD
	us-gaap	Payments For Proceeds From Short Term Investments PaymentsForProceedsFromShortTermInvestments	-159000000.0	USD
	us-gaap	Payments For Proceeds From Short Term Investments PaymentsForProceedsFromShortTermInvestments	-18900000	USD
	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	100000	USD
	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-2500000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-32200000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-609600000	USD
	us-gaap	Proceeds From Issuance Of Other Long Term Debt ProceedsFromIssuanceOfOtherLongTermDebt	0	USD
	us-gaap	Proceeds From Issuance Of Other Long Term Debt ProceedsFromIssuanceOfOtherLongTermDebt	416400000	USD
	aiz	Special Purpose Entity Proceeds From Issuance Of Long Term Debt SpecialPurposeEntityProceedsFromIssuanceOfLongTermDebt	0	USD
	aiz	Special Purpose Entity Proceeds From Issuance Of Long Term Debt SpecialPurposeEntityProceedsFromIssuanceOfLongTermDebt	189100000	USD
	aiz	Special Purpose Entity Repaymentsof Debt SpecialPurposeEntityRepaymentsofDebt	1200000	USD
	aiz	Special Purpose Entity Repaymentsof Debt SpecialPurposeEntityRepaymentsofDebt	318100000	USD
	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	200000000.0	USD
	us-gaap	Proceeds From Lines Of Credit ProceedsFromLinesOfCredit	0	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	86200000	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	98500000	USD
	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	77600000	USD
	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	75700000	USD
	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	9300000	USD
	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	9300000	USD
	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	13700000	USD
	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	-14700000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	12000000.0	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	118600000	USD
	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	-1600000	USD
	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	1700000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	270400000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	236400000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1867100000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1254000000.0	USD
CY2020Q2	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	2137500000	USD
CY2019Q2	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1490400000	USD
	us-gaap	Nature Of Operations NatureOfOperations	Nature of Operations <div style="line-height:120%;padding-bottom:6px;padding-top:12px;text-indent:30px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">Assurant, Inc. (the “Company”) is a global provider of lifestyle and housing solutions that support, protect and connect major consumer purchases. The Company partners with leading brands to develop innovative products and services and to deliver enhanced customer experience. The Company operates in North America, Latin America, Europe and Asia Pacific through </span><span style="font-family:inherit;font-size:10pt;"><span>three</span></span><span style="font-family:inherit;font-size:10pt;"> operating segments: Global Lifestyle, Global Housing and Global Preneed. Through its Global Lifestyle segment, the Company provides mobile device solutions and extended service products and related services for consumer electronics and appliances (referred to as “Connected Living”); vehicle protection and related services (referred to as “Global Automotive”); and credit and other insurance products (referred to as “Global Financial Services and Other”). Through its Global Housing segment, the Company provides lender-placed homeowners insurance, lender-placed manufactured housing insurance and lender-placed flood insurance (referred to as “Lender-placed Insurance”); renters insurance and related products (referred to as “Multifamily Housing”); and voluntary manufactured housing insurance, voluntary homeowners insurance and other specialty products (referred to as “Specialty and Other”). Through its Global Preneed segment, the Company provides pre-funded funeral insurance, final need insurance and related services. </span></div>The Company’s common stock is traded on the New York Stock Exchange under the symbol “AIZ”.
CY2020Q1	us-gaap	Premiums And Other Receivables Net PremiumsAndOtherReceivablesNet	1692800000	USD
CY2020Q1	us-gaap	Notes Receivable Net NotesReceivableNet	815000000.0	USD
	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	3	segment
	us-gaap	Basis Of Accounting BasisOfAccounting	Basis of Presentation<div style="line-height:120%;padding-bottom:6px;padding-top:12px;text-indent:32px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">The accompanying unaudited interim Consolidated Financial Statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”) for interim financial information. Accordingly, these statements do not include all of the information and notes required by GAAP for complete financial statements. </span></div><div style="line-height:120%;padding-bottom:6px;padding-top:12px;text-indent:32px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">The interim financial data as of June 30, 2020 and for the three and six months ended June 30, 2020 and 2019 is unaudited. In the opinion of management, the interim data includes all adjustments necessary for a fair statement of the results for the interim periods. The unaudited interim Consolidated Financial Statements include the accounts of the Company and all of its wholly owned subsidiaries. All inter-company transactions and balances are eliminated in consolidation. Certain prior period amounts have been reclassified to conform to the current year presentation. </span></div>Operating results for the three and six months ended June 30, 2020 are not necessarily indicative of the results that may be expected for the year ending December 31, 2020. The accompanying unaudited interim Consolidated Financial Statements should be read in conjunction with the audited Consolidated Financial Statements and related notes included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2019.
CY2020Q1	us-gaap	Reinsurance Recoverables ReinsuranceRecoverables	9593400000	USD
CY2020Q1	aiz	Receivablenetof Allowancefor Credit Loss ReceivablenetofAllowanceforCreditLoss	12101200000	USD
CY2020Q2	aiz	Receivable Allowancefor Credit Loss ReceivableAllowanceforCreditLoss	51000000.0	USD
CY2019Q4	aiz	Receivable Allowancefor Credit Loss ReceivableAllowanceforCreditLoss	20300000	USD
	aiz	Receivable Allowancefor Credit Losses Period Increase Decrease Net ReceivableAllowanceforCreditLossesPeriodIncreaseDecreaseNet	7700000	USD
	aiz	Receivable Allowancefor Credit Losses Period Increase Decrease ReceivableAllowanceforCreditLossesPeriodIncreaseDecrease	11600000	USD
	aiz	Receivable Allowance For Credit Losses Recovery ReceivableAllowanceForCreditLossesRecovery	3900000	USD
	aiz	Receivable Allowancefor Credit Losses Period Increase Decrease No Impact On Income ReceivableAllowanceforCreditLossesPeriodIncreaseDecreaseNoImpactOnIncome	23000000.0	USD
	aiz	Receivable Allowance For Credit Loss Writeoff ReceivableAllowanceForCreditLossWriteoff	2800000	USD
CY2020Q2	us-gaap	Reinsurance Recoverables ReinsuranceRecoverables	9580000000	USD
CY2019Q4	us-gaap	Reinsurance Recoverables ReinsuranceRecoverables	9590000000	USD
CY2019Q4	us-gaap	Reinsurance Recoverables Allowance ReinsuranceRecoverablesAllowance	2800000	USD
	us-gaap	Reinsurance Recoverable Credit Loss Expense Reversal ReinsuranceRecoverableCreditLossExpenseReversal	4000000.0	USD
	us-gaap	Reinsurance Recoverable Allowance For Credit Loss Recovery ReinsuranceRecoverableAllowanceForCreditLossRecovery	2500000	USD
CY2020Q2	us-gaap	Reinsurance Recoverables Allowance ReinsuranceRecoverablesAllowance	26800000	USD
	us-gaap	Reinsurance Recoverable Credit Loss Expense Reversal ReinsuranceRecoverableCreditLossExpenseReversal	4000000.0	USD
CY2019Q4	aiz	Premiums And Accounts Receivable Allowance For Credit Loss PremiumsAndAccountsReceivableAllowanceForCreditLoss	15300000	USD
	aiz	Premiums And Accounts Receivable Allowance For Credit Loss Acquired Allowance PremiumsAndAccountsReceivableAllowanceForCreditLossAcquiredAllowance	400000	USD
	aiz	Premiums And Accounts Receivable Allowance For Credit Loss Period Increase Decrease PremiumsAndAccountsReceivableAllowanceForCreditLossPeriodIncreaseDecrease	4000000.0	USD
	aiz	Premiums And Accounts Receivable Allowance For Credit Loss Recovery PremiumsAndAccountsReceivableAllowanceForCreditLossRecovery	1400000	USD
	aiz	Premiums And Accounts Receivable Allowance For Credit Loss Writeoff PremiumsAndAccountsReceivableAllowanceForCreditLossWriteoff	2800000	USD
	aiz	Premiumsand Accounts Receivable Allowance For Credit Loss Foreign Currency Translationand Other PremiumsandAccountsReceivableAllowanceForCreditLossForeignCurrencyTranslationandOther	-500000	USD
CY2020Q2	aiz	Premiums And Accounts Receivable Allowance For Credit Loss PremiumsAndAccountsReceivableAllowanceForCreditLoss	16800000	USD
	aiz	Premiums And Accounts Receivable Allowance For Credit Loss Period Increase Decrease PremiumsAndAccountsReceivableAllowanceForCreditLossPeriodIncreaseDecrease	4000000.0	USD
	aiz	Approximate Percentage Outstanding Principal Balance Of Commercial Mortgage Loans ApproximatePercentageOutstandingPrincipalBalanceOfCommercialMortgageLoans	0.40
CY2019Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	600000	USD
CY2020Q1	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	2200000	USD
	aiz	Income Tax Refund Claim Cares Act IncomeTaxRefundClaimCARESAct	198400000	USD
	aiz	Cares Act Tax Benefit CARESActTaxBenefit	79300000	USD
	aiz	Cares Act Decreasein Deferred Tax Asset CARESActDecreaseinDeferredTaxAsset	107100000	USD
	aiz	Cares Act Increase Decreasein Current Income Tax Receivable CARESActIncreaseDecreaseinCurrentIncomeTaxReceivable	186400000	USD
	aiz	Interest Income From Tax Refund Cares Act InterestIncomeFromTaxRefundCARESAct	5100000	USD
	aiz	Refundable Employee Retention Tax Credit Cares Act RefundableEmployeeRetentionTaxCreditCARESAct	1700000	USD
	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	4	reportable_segment
CY2020Q2	us-gaap	Premiums Earned Net PremiumsEarnedNet	2036400000	USD
CY2020Q2	us-gaap	Other Income OtherIncome	271500000	USD
CY2020Q2	us-gaap	Net Investment Income NetInvestmentIncome	137200000	USD
CY2020Q2	us-gaap	Realized Investment Gains Losses RealizedInvestmentGainsLosses	24100000	USD
CY2020Q2	aiz	Amortizationof Deferred Gainon Disposalof Businesses AmortizationofDeferredGainonDisposalofBusinesses	2400000	USD
CY2020Q2	us-gaap	Revenues Revenues	2471600000	USD
CY2020Q2	us-gaap	Policyholder Benefits And Claims Incurred Net PolicyholderBenefitsAndClaimsIncurredNet	592100000	USD
CY2020Q2	aiz	Amortization Of Deferred Acquisition Costs And Value Of Business Acquired AmortizationOfDeferredAcquisitionCostsAndValueOfBusinessAcquired	885300000	USD
CY2020Q2	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	736200000	USD
CY2020Q2	aiz	Investment Related Charges Netof Derivative Gains InvestmentRelatedChargesNetofDerivativeGains	4500000	USD
CY2020Q2	us-gaap	Interest Expense InterestExpense	26700000	USD
CY2020Q2	us-gaap	Benefits Losses And Expenses BenefitsLossesAndExpenses	2244800000	USD
CY2020Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	226800000	USD
CY2020Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	48400000	USD
CY2020Q2	us-gaap	Profit Loss ProfitLoss	178400000	USD
CY2020Q2	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	300000	USD
CY2020Q2	us-gaap	Net Income Loss NetIncomeLoss	178100000	USD
CY2020Q2	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	4600000	USD
CY2020Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	173500000	USD
CY2020Q2	us-gaap	Assets Assets	44233200000	USD
CY2019Q2	us-gaap	Premiums Earned Net PremiumsEarnedNet	2032700000	USD
CY2019Q2	us-gaap	Other Income OtherIncome	336100000	USD
CY2019Q2	us-gaap	Net Investment Income NetInvestmentIncome	154200000	USD
CY2019Q2	us-gaap	Realized Investment Gains Losses RealizedInvestmentGainsLosses	17800000	USD
CY2019Q2	aiz	Amortizationof Deferred Gainon Disposalof Businesses AmortizationofDeferredGainonDisposalofBusinesses	4700000	USD
CY2019Q2	us-gaap	Revenues Revenues	2545500000	USD
CY2019Q2	us-gaap	Policyholder Benefits And Claims Incurred Net PolicyholderBenefitsAndClaimsIncurredNet	687000000.0	USD
CY2019Q2	aiz	Amortization Of Deferred Acquisition Costs And Value Of Business Acquired AmortizationOfDeferredAcquisitionCostsAndValueOfBusinessAcquired	815800000	USD
CY2019Q2	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	823700000	USD
CY2019Q2	aiz	Investment Related Charges Netof Derivative Gains InvestmentRelatedChargesNetofDerivativeGains	9200000	USD
CY2019Q2	us-gaap	Interest Expense InterestExpense	26500000	USD
CY2019Q2	us-gaap	Benefits Losses And Expenses BenefitsLossesAndExpenses	2362200000	USD
CY2019Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	183300000	USD
CY2019Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	40700000	USD
CY2019Q2	us-gaap	Profit Loss ProfitLoss	142600000	USD
CY2019Q2	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-1500000	USD
CY2019Q2	us-gaap	Net Income Loss NetIncomeLoss	144100000	USD
CY2019Q2	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	4600000	USD
CY2019Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	139500000	USD
	us-gaap	Premiums Earned Net PremiumsEarnedNet	4120200000	USD
	us-gaap	Other Income OtherIncome	688400000	USD
	us-gaap	Net Investment Income NetInvestmentIncome	293200000	USD
	us-gaap	Realized Investment Gains Losses RealizedInvestmentGainsLosses	-71200000	USD
	aiz	Amortizationof Deferred Gainon Disposalof Businesses AmortizationofDeferredGainonDisposalofBusinesses	6600000	USD
	us-gaap	Revenues Revenues	5037200000	USD
	us-gaap	Policyholder Benefits And Claims Incurred Net PolicyholderBenefitsAndClaimsIncurredNet	1199300000	USD
	aiz	Amortization Of Deferred Acquisition Costs And Value Of Business Acquired AmortizationOfDeferredAcquisitionCostsAndValueOfBusinessAcquired	1799500000	USD
	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	1644300000	USD
	aiz	Investment Related Charges Netof Derivative Gains InvestmentRelatedChargesNetofDerivativeGains	5900000	USD
	us-gaap	Interest Expense InterestExpense	52200000	USD
	us-gaap	Benefits Losses And Expenses BenefitsLossesAndExpenses	4701200000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	336000000.0	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1800000	USD
	us-gaap	Profit Loss ProfitLoss	334200000	USD
	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	1400000	USD
	us-gaap	Net Income Loss NetIncomeLoss	332800000	USD
	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	9300000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	323500000	USD
	us-gaap	Premiums Earned Net PremiumsEarnedNet	3937100000	USD
	us-gaap	Other Income OtherIncome	664400000	USD
	us-gaap	Net Investment Income NetInvestmentIncome	320500000	USD
	us-gaap	Realized Investment Gains Losses RealizedInvestmentGainsLosses	46600000	USD
	aiz	Amortizationof Deferred Gainon Disposalof Businesses AmortizationofDeferredGainonDisposalofBusinesses	12500000	USD
	us-gaap	Revenues Revenues	4981100000	USD
	us-gaap	Policyholder Benefits And Claims Incurred Net PolicyholderBenefitsAndClaimsIncurredNet	1301700000	USD
	aiz	Amortization Of Deferred Acquisition Costs And Value Of Business Acquired AmortizationOfDeferredAcquisitionCostsAndValueOfBusinessAcquired	1593100000	USD
	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	1623600000	USD
	aiz	Investment Related Charges Netof Derivative Gains InvestmentRelatedChargesNetofDerivativeGains	9400000	USD
	us-gaap	Interest Expense InterestExpense	53000000.0	USD
	us-gaap	Benefits Losses And Expenses BenefitsLossesAndExpenses	4580800000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	400300000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	89100000	USD
	us-gaap	Profit Loss ProfitLoss	311200000	USD
	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	1400000	USD
	us-gaap	Net Income Loss NetIncomeLoss	309800000	USD
	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	9300000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	300500000	USD
CY2020Q2	us-gaap	Available For Sale Securities Debt Maturities Within One Year Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost	469900000	USD
CY2020Q2	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	475300000	USD
CY2020Q2	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost	2449400000	USD
CY2020Q2	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	2598300000	USD
CY2020Q2	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost	2436600000	USD
CY2020Q2	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	2721700000	USD
CY2020Q2	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost	3833700000	USD
CY2020Q2	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue	4883500000	USD
CY2020Q2	aiz	Available For Sale Securities Debt Maturities Contractual Maturity Total AvailableForSaleSecuritiesDebtMaturitiesContractualMaturityTotal	9189600000	USD
CY2020Q2	aiz	Available For Sale Securities Debt Maturities Contractual Maturity Fair Value Total AvailableForSaleSecuritiesDebtMaturitiesContractualMaturityFairValueTotal	10678800000	USD
CY2020Q2	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	11050400000	USD
CY2020Q2	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	12639600000	USD
CY2020Q2	aiz	Realized Investment Gains Loss Relatedto Salesand Other RealizedInvestmentGainsLossRelatedtoSalesandOther	31900000	USD
CY2019Q2	aiz	Realized Investment Gains Loss Relatedto Salesand Other RealizedInvestmentGainsLossRelatedtoSalesandOther	18400000	USD
	aiz	Realized Investment Gains Loss Relatedto Salesand Other RealizedInvestmentGainsLossRelatedtoSalesandOther	-58100000	USD
	aiz	Realized Investment Gains Loss Relatedto Salesand Other RealizedInvestmentGainsLossRelatedtoSalesandOther	47500000	USD
CY2020Q2	aiz	Investment Impairment Lossesincludedin Net Realized Gains Losses InvestmentImpairmentLossesincludedinNetRealizedGainsLosses	7800000	USD
CY2019Q2	aiz	Investment Impairment Lossesincludedin Net Realized Gains Losses InvestmentImpairmentLossesincludedinNetRealizedGainsLosses	600000	USD
	aiz	Investment Impairment Lossesincludedin Net Realized Gains Losses InvestmentImpairmentLossesincludedinNetRealizedGainsLosses	13100000	USD
	aiz	Investment Impairment Lossesincludedin Net Realized Gains Losses InvestmentImpairmentLossesincludedinNetRealizedGainsLosses	900000	USD
CY2020Q2	us-gaap	Realized Investment Gains Losses RealizedInvestmentGainsLosses	24100000	USD
CY2019Q2	us-gaap	Realized Investment Gains Losses RealizedInvestmentGainsLosses	17800000	USD
	us-gaap	Realized Investment Gains Losses RealizedInvestmentGainsLosses	-71200000	USD
	us-gaap	Realized Investment Gains Losses RealizedInvestmentGainsLosses	46600000	USD
	us-gaap	Equity Securities Without Readily Determinable Fair Value Upward Price Adjustment Annual Amount EquitySecuritiesWithoutReadilyDeterminableFairValueUpwardPriceAdjustmentAnnualAmount	2200000	USD
	us-gaap	Equity Securities Without Readily Determinable Fair Value Upward Price Adjustment Annual Amount EquitySecuritiesWithoutReadilyDeterminableFairValueUpwardPriceAdjustmentAnnualAmount	10400000	USD
CY2020Q2	us-gaap	Equity Securities Without Readily Determinable Fair Value Upward Price Adjustment Annual Amount EquitySecuritiesWithoutReadilyDeterminableFairValueUpwardPriceAdjustmentAnnualAmount	0	USD
CY2020Q2	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	21400000	USD
CY2019Q2	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	7000000.0	USD
	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	-26800000	USD
	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	36900000	USD
CY2020Q2	us-gaap	Equity Securities Fv Ni Realized Gain Loss EquitySecuritiesFvNiRealizedGainLoss	-900000	USD
CY2019Q2	us-gaap	Equity Securities Fv Ni Realized Gain Loss EquitySecuritiesFvNiRealizedGainLoss	-100000	USD
	us-gaap	Equity Securities Fv Ni Realized Gain Loss EquitySecuritiesFvNiRealizedGainLoss	-900000	USD
	us-gaap	Equity Securities Fv Ni Realized Gain Loss EquitySecuritiesFvNiRealizedGainLoss	900000	USD
CY2020Q2	us-gaap	Equity Securities Fv Ni Gain Loss EquitySecuritiesFvNiGainLoss	20500000	USD
CY2019Q2	us-gaap	Equity Securities Fv Ni Gain Loss EquitySecuritiesFvNiGainLoss	6900000	USD
	us-gaap	Equity Securities Fv Ni Gain Loss EquitySecuritiesFvNiGainLoss	-27700000	USD
	us-gaap	Equity Securities Fv Ni Gain Loss EquitySecuritiesFvNiGainLoss	37800000	USD
CY2020Q2	aiz	Available For Sale Securities Gross Unrealized Losses Percentage AvailableForSaleSecuritiesGrossUnrealizedLossesPercentage	0.07
CY2019Q4	aiz	Available For Sale Securities Gross Unrealized Losses Percentage AvailableForSaleSecuritiesGrossUnrealizedLossesPercentage	0.01
CY2020Q2	aiz	Available For Sale Securities Continuous Unrealized Loss Position Less Than12 Months Aggregate Losses Percentage AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAggregateLossesPercentage	0.83
CY2019Q4	aiz	Available For Sale Securities Continuous Unrealized Loss Position Less Than12 Months Aggregate Losses Percentage AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAggregateLossesPercentage	0.49
CY2020Q2	aiz	Number Of Available For Sale Securities Comprising Gross Unrealized Loss NumberOfAvailableForSaleSecuritiesComprisingGrossUnrealizedLoss	418	investment
CY2019Q4	aiz	Number Of Available For Sale Securities Comprising Gross Unrealized Loss NumberOfAvailableForSaleSecuritiesComprisingGrossUnrealizedLoss	330	investment
	us-gaap	Schedule Of Liability For Unpaid Claims And Claims Adjustment Expense ScheduleOfLiabilityForUnpaidClaimsAndClaimsAdjustmentExpense	<div style="line-height:120%;padding-bottom:6px;padding-top:12px;text-indent:32px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">The following table provides a roll forward of the Company’s beginning and ending claims and benefits payable balances. Claims and benefits payable is the liability for unpaid loss and loss adjustment expenses and is comprised of case and incurred but not reported (“IBNR”) reserves.</span></div><div style="line-height:120%;padding-bottom:6px;padding-top:12px;text-indent:32px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">Since unpaid loss and loss adjustment expenses are estimates, the Company’s actual losses incurred may be more or less than the Company’s previously developed estimates, which is referred to as either unfavorable or favorable development, respectively.</span></div><div style="line-height:120%;padding-bottom:6px;padding-top:12px;text-indent:32px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">The best estimate of ultimate loss and loss adjustment expense is generally selected from a blend of methods that are applied consistently each period. There have been no significant changes in the methodologies and assumptions utilized in estimating the liability for unpaid loss and loss adjustment expenses for any of the periods presented.</span></div><div style="line-height:120%;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:100%;border-collapse:collapse;text-align:left;"><tr><td colspan="8"/></tr><tr><td style="width:69%;"/><td style="width:1%;"/><td style="width:13%;"/><td style="width:1%;"/><td style="width:1%;"/><td style="width:1%;"/><td style="width:13%;"/><td style="width:1%;"/></tr><tr><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="7" style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:center;font-size:8pt;"><span style="font-family:inherit;font-size:8pt;font-weight:bold;">For the Six Months Ended June 30,</span></div></td></tr><tr><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;">2020</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;">2019</span></div></td></tr><tr><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">Claims and benefits payable, at beginning of period</span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;border-top:1px solid #000000;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">$</span></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;border-top:1px solid #000000;"><div style="text-align:right;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><span>2,687.7</span></span></div></td><td style="vertical-align:bottom;background-color:#cceeff;border-top:1px solid #000000;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;background-color:#cceeff;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">$</span></div></td><td style="vertical-align:bottom;background-color:#cceeff;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><span>2,813.7</span></span></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><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;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">Less: Reinsurance ceded and other</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>(1,900.0</span></span></div></td><td style="vertical-align:bottom;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;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>(2,053.7</span></span></div></td><td style="vertical-align:bottom;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:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">Net claims and benefits payable, at beginning of period</span></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #000000;background-color:#cceeff;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>787.7</span></span></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;background-color:#cceeff;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:#cceeff;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:#cceeff;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>760.0</span></span></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;background-color:#cceeff;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;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">Incurred losses and loss adjustment expenses related to:</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:#cceeff;padding-left:28px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">Current year</span></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;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>1,242.1</span></span></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><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:#cceeff;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:#cceeff;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>1,339.4</span></span></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><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:28px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">Prior years</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>(43.1</span></span></div></td><td style="vertical-align:bottom;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;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>(37.7</span></span></div></td><td style="vertical-align:bottom;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:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">Total incurred losses and loss adjustment expenses</span></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #000000;background-color:#cceeff;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>1,199.0</span></span></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;background-color:#cceeff;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:#cceeff;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:#cceeff;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>1,301.7</span></span></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;background-color:#cceeff;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;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">Paid losses and loss adjustment expenses related to:</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:#cceeff;padding-left:28px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">Current year</span></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;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>786.9</span></span></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><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:#cceeff;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:#cceeff;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>882.9</span></span></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><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:28px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">Prior years</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>399.4</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>409.2</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:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">Total paid losses and loss adjustment expenses</span></div></td><td colspan="2" style="vertical-align:bottom;border-bottom:1px solid #000000;background-color:#cceeff;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>1,186.3</span></span></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;background-color:#cceeff;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:#cceeff;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:#cceeff;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>1,292.1</span></span></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;background-color:#cceeff;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;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">Net claims and benefits payable, at end of period</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>800.4</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>769.6</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:#cceeff;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">Plus: Reinsurance ceded and other (1) </span></div></td><td colspan="2" style="vertical-align:bottom;background-color:#cceeff;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>1,868.7</span></span></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><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:#cceeff;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:#cceeff;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>1,952.6</span></span></div></td><td style="vertical-align:bottom;background-color:#cceeff;"><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;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">Claims and benefits payable, at end of period (1)</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;">$</span></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-top:2px;padding-bottom:2px;border-top:1px solid #000000;"><div style="text-align:right;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><span>2,669.1</span></span></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;border-top:1px solid #000000;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"> </span></div></td><td style="vertical-align:bottom;border-bottom:3px double #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;border-top:1px solid #000000;"><div style="text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">$</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>2,722.2</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><span style="font-family:inherit;font-size:10pt;"><br/></span></div><div style="line-height:120%;font-size:8pt;padding-left:0px;"><span style="font-family:inherit;font-size:8pt;">(1)</span></div><div style="line-height:120%;text-align:left;font-size:8pt;"><span style="font-family:inherit;font-size:8pt;">Includes reinsurance recoverables and claims and benefits payable of </span><span style="font-family:inherit;font-size:8pt;"><span>$72.0 million</span></span><span style="font-family:inherit;font-size:8pt;"> and </span><span style="font-family:inherit;font-size:8pt;"><span>$83.2 million</span></span><span style="font-family:inherit;font-size:8pt;"> as of June 30, 2020 and 2019, respectively, which was ceded to the U.S. government. The Company acts as an administrator for the U.S. government under the voluntary National Flood Insurance Program. </span></div>
CY2019Q4	us-gaap	Liability For Claims And Claims Adjustment Expense LiabilityForClaimsAndClaimsAdjustmentExpense	2687700000	USD
CY2018Q4	us-gaap	Liability For Claims And Claims Adjustment Expense LiabilityForClaimsAndClaimsAdjustmentExpense	2813700000	USD
CY2019Q4	us-gaap	Reinsurance Recoverable For Unpaid Claims And Claims Adjustments ReinsuranceRecoverableForUnpaidClaimsAndClaimsAdjustments	1900000000.0	USD
CY2018Q4	us-gaap	Reinsurance Recoverable For Unpaid Claims And Claims Adjustments ReinsuranceRecoverableForUnpaidClaimsAndClaimsAdjustments	2053700000	USD
CY2019Q4	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Net LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseNet	787700000	USD
CY2018Q4	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Net LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseNet	760000000.0	USD
	us-gaap	Supplemental Information For Property Casualty Insurance Underwriters Current Year Claims And Claims Adjustment Expense SupplementalInformationForPropertyCasualtyInsuranceUnderwritersCurrentYearClaimsAndClaimsAdjustmentExpense	1242100000	USD
	us-gaap	Supplemental Information For Property Casualty Insurance Underwriters Current Year Claims And Claims Adjustment Expense SupplementalInformationForPropertyCasualtyInsuranceUnderwritersCurrentYearClaimsAndClaimsAdjustmentExpense	1339400000	USD
	us-gaap	Supplemental Information For Property Casualty Insurance Underwriters Prior Year Claims And Claims Adjustment Expense SupplementalInformationForPropertyCasualtyInsuranceUnderwritersPriorYearClaimsAndClaimsAdjustmentExpense	-43100000	USD
	us-gaap	Supplemental Information For Property Casualty Insurance Underwriters Prior Year Claims And Claims Adjustment Expense SupplementalInformationForPropertyCasualtyInsuranceUnderwritersPriorYearClaimsAndClaimsAdjustmentExpense	-37700000	USD
	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Incurred Claims1 LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseIncurredClaims1	1199000000.0	USD
	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Incurred Claims1 LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseIncurredClaims1	1301700000	USD
	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Claims Paid Current Year1 LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidCurrentYear1	786900000	USD
	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Claims Paid Current Year1 LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidCurrentYear1	882900000	USD
	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Claims Paid Prior Years1 LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidPriorYears1	399400000	USD
	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Claims Paid Prior Years1 LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidPriorYears1	409200000	USD
	us-gaap	Payments For Losses And Loss Adjustment Expense PaymentsForLossesAndLossAdjustmentExpense	1186300000	USD
	us-gaap	Payments For Losses And Loss Adjustment Expense PaymentsForLossesAndLossAdjustmentExpense	1292100000	USD
CY2020Q2	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Net LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseNet	800400000	USD
CY2019Q2	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Net LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseNet	769600000	USD
CY2020Q2	us-gaap	Reinsurance Recoverable For Unpaid Claims And Claims Adjustments ReinsuranceRecoverableForUnpaidClaimsAndClaimsAdjustments	1868700000	USD
CY2019Q2	us-gaap	Reinsurance Recoverable For Unpaid Claims And Claims Adjustments ReinsuranceRecoverableForUnpaidClaimsAndClaimsAdjustments	1952600000	USD
CY2020Q2	us-gaap	Liability For Claims And Claims Adjustment Expense LiabilityForClaimsAndClaimsAdjustmentExpense	2669100000	USD
CY2019Q2	us-gaap	Liability For Claims And Claims Adjustment Expense LiabilityForClaimsAndClaimsAdjustmentExpense	2722200000	USD
CY2020Q2	us-gaap	Unsecured Debt UnsecuredDebt	2208000000.0	USD
CY2019Q4	us-gaap	Unsecured Debt UnsecuredDebt	2006900000	USD
CY2020Q2	us-gaap	Amortization Of Deferred Hedge Gains AmortizationOfDeferredHedgeGains	800000	USD
	us-gaap	Amortization Of Deferred Hedge Gains AmortizationOfDeferredHedgeGains	1500000	USD
CY2020Q2	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	461000000.0	USD
CY2020Q2	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	-19500000	USD
CY2020Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	480500000	USD
CY2019Q2	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	230300000	USD
CY2019Q2	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	5000000.0	USD
CY2019Q2	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	225300000	USD
	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	143200000	USD
	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	-14200000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	157400000	USD
	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	487900000	USD
	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	3800000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	484100000	USD
	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	734967	shares
	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	1037262	shares
	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	83100000	USD
	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	100700000	USD
CY2020Q2	us-gaap	Stock Repurchase Program Remaining Authorized Repurchase Amount1 StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1	403200000	USD
CY2020Q2	us-gaap	Dividends Preferred Stock Cash DividendsPreferredStockCash	4600000	USD
	us-gaap	Dividends Preferred Stock Cash DividendsPreferredStockCash	9300000	USD
CY2020Q2	us-gaap	Net Income Loss NetIncomeLoss	178100000	USD
CY2019Q2	us-gaap	Net Income Loss NetIncomeLoss	144100000	USD
	us-gaap	Net Income Loss NetIncomeLoss	332800000	USD
	us-gaap	Net Income Loss NetIncomeLoss	309800000	USD
CY2020Q2	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	4600000	USD
CY2019Q2	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	4600000	USD
	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	9300000	USD
	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	9300000	USD
CY2020Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	173500000	USD
CY2019Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	139500000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	323500000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	300500000	USD
CY2020Q2	us-gaap	Dividends Common Stock DividendsCommonStock	39600000	USD
CY2019Q2	us-gaap	Dividends Common Stock DividendsCommonStock	38300000	USD
	us-gaap	Dividends Common Stock DividendsCommonStock	77600000	USD
	us-gaap	Dividends Common Stock DividendsCommonStock	75700000	USD
CY2020Q2	us-gaap	Undistributed Earnings UndistributedEarnings	133900000	USD
CY2019Q2	us-gaap	Undistributed Earnings UndistributedEarnings	101200000	USD
	us-gaap	Undistributed Earnings UndistributedEarnings	245900000	USD
	us-gaap	Undistributed Earnings UndistributedEarnings	224800000	USD
CY2020Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	60363577	shares
CY2019Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	62222090	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	60483244	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	62407429	shares
CY2020Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	63347189	shares
CY2019Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	65288447	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	63473312	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	65560930	shares
CY2020Q2	us-gaap	Earnings Per Share Basic Distributed EarningsPerShareBasicDistributed	0.66
CY2019Q2	us-gaap	Earnings Per Share Basic Distributed EarningsPerShareBasicDistributed	0.62
	us-gaap	Earnings Per Share Basic Distributed EarningsPerShareBasicDistributed	1.28
	us-gaap	Earnings Per Share Basic Distributed EarningsPerShareBasicDistributed	1.21
CY2020Q2	us-gaap	Earnings Per Share Basic Undistributed EarningsPerShareBasicUndistributed	2.21
CY2019Q2	us-gaap	Earnings Per Share Basic Undistributed EarningsPerShareBasicUndistributed	1.62
	us-gaap	Earnings Per Share Basic Undistributed EarningsPerShareBasicUndistributed	4.07
	us-gaap	Earnings Per Share Basic Undistributed EarningsPerShareBasicUndistributed	3.61
CY2020Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.87
CY2019Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.24
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	5.35
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	4.82
CY2020Q2	us-gaap	Earnings Per Share Diluted Distributed EarningsPerShareDilutedDistributed	0.63
CY2019Q2	us-gaap	Earnings Per Share Diluted Distributed EarningsPerShareDilutedDistributed	0.59
	us-gaap	Earnings Per Share Diluted Distributed EarningsPerShareDilutedDistributed	1.22
	us-gaap	Earnings Per Share Diluted Distributed EarningsPerShareDilutedDistributed	1.16
CY2020Q2	us-gaap	Earnings Per Share Diluted Undistributed EarningsPerShareDilutedUndistributed	2.18
CY2019Q2	us-gaap	Earnings Per Share Diluted Undistributed EarningsPerShareDilutedUndistributed	1.62
	us-gaap	Earnings Per Share Diluted Undistributed EarningsPerShareDilutedUndistributed	4.02
	us-gaap	Earnings Per Share Diluted Undistributed EarningsPerShareDilutedUndistributed	3.57
CY2020Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.81
CY2019Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.21
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	5.24
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	4.73
CY2020Q2	us-gaap	Defined Benefit Plan Funded Status Of Plan DefinedBenefitPlanFundedStatusOfPlan	53900000	USD
CY2019Q4	us-gaap	Defined Benefit Plan Funded Status Of Plan DefinedBenefitPlanFundedStatusOfPlan	66400000	USD
CY2020Q2	us-gaap	Defined Benefit Plan Funded Percentage DefinedBenefitPlanFundedPercentage	1.07
CY2019Q4	us-gaap	Defined Benefit Plan Funded Percentage DefinedBenefitPlanFundedPercentage	1.09
	us-gaap	Pension Contributions PensionContributions	0	USD
CY2020Q2	us-gaap	Defined Benefit Plan Expected Future Employer Contributions Remainder Of Fiscal Year DefinedBenefitPlanExpectedFutureEmployerContributionsRemainderOfFiscalYear	0	USD
CY2020Q2	us-gaap	Letters Of Credit Outstanding Amount LettersOfCreditOutstandingAmount	12100000	USD
	aiz	Income Tax Refund Claim Cares Act IncomeTaxRefundClaimCARESAct	198400000	USD

Files In Submission

Name	View Source	Status
0001267238-20-000040-index-headers.html	Edgar Link	pending
0001267238-20-000040-index.html	Edgar Link	pending
0001267238-20-000040.txt	Edgar Link	pending
0001267238-20-000040-xbrl.zip	Edgar Link	pending
aiz-20200630.xsd	Edgar Link	pending
aiz-2020063010q.htm	Edgar Link	pending
aiz-2020063010q_htm.xml	Edgar Link	completed
aiz-20200630exh311.htm	Edgar Link	pending
aiz-20200630exh312.htm	Edgar Link	pending
aiz-20200630exh321.htm	Edgar Link	pending
aiz-20200630exh322.htm	Edgar Link	pending
aiz-20200630_cal.xml	Edgar Link	unprocessable
aiz-20200630_def.xml	Edgar Link	unprocessable
aiz-20200630_lab.xml	Edgar Link	unprocessable
aiz-20200630_pre.xml	Edgar Link	unprocessable
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
MetaLinks.json	Edgar Link	pending
R1.htm	Edgar Link	pending
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report.css	Edgar Link	pending
Show.js	Edgar Link	pending

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$AIZ
ASSURANT, INC. Stock $aiz

2020 Q2 Form 10-Q Financial Statement

#000126723820000040 Filed on August 07, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$AIZ ASSURANT, INC. Stock $aiz

2020 Q2 Form 10-Q Financial Statement

#000126723820000040 Filed on August 07, 2020

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$AIZ
ASSURANT, INC. Stock $aiz