$SPNT
SiriusPoint Ltd Stock $spnt

$spnt Overview Financials Valuation SEC Filings Company Website

2021 Q3 Form 10-Q Financial Statement

#000157601821000183 Filed on November 03, 2021

Income Statement

Concept	2021 Q3	2020 Q3
Revenue	$732.6M	$263.7M
YoY Change	177.82%	31.78%
Cost Of Revenue
YoY Change
Gross Profit
YoY Change
Gross Profit Margin
Selling, General & Admin		$21.30M
YoY Change		131.52%
% of Gross Profit
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$3.500M	$54.82M
YoY Change	-93.62%	-53.65%
% of Gross Profit
Operating Expenses	$799.4M	$186.3M
YoY Change	329.09%	-14.66%
Operating Profit
YoY Change
Interest Expense	$9.700M	$2.100M
YoY Change	361.9%	1.25%
% of Operating Profit
Other Income/Expense, Net
YoY Change
Pretax Income	-$60.40M	$69.40M
YoY Change	-187.03%	-553.24%
Income Tax	-$13.00M	$700.0K
% Of Pretax Income		1.01%
Net Earnings	-$44.00M	$68.70M
YoY Change	-164.05%	-555.0%
Net Earnings / Revenue	-6.01%	26.05%
Basic Earnings Per Share	-$0.30	$0.74
Diluted Earnings Per Share	-$0.34	$0.73
COMMON SHARES
Basic Shares Outstanding	159.2M shares	92.61M shares
Diluted Shares Outstanding	160.2M shares	92.97M shares

Balance Sheet

Concept	2021 Q3	2020 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents	$701.2M	$513.8M
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	$14.60M
YoY Change
Goodwill
YoY Change
Intangibles	$173.7M
YoY Change
Long-Term Investments	$5.074B	$1.059B
YoY Change	379.08%	1.63%
Other Assets	$1.677B	$1.102B
YoY Change	52.13%	34.88%
Total Long-Term Assets
YoY Change
TOTAL ASSETS
Total Short-Term Assets
Total Long-Term Assets
Total Assets	$10.72B	$3.534B
YoY Change	203.17%	2.78%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$134.0M	$14.00M
YoY Change	857.14%	-6.67%
Accrued Expenses	$20.10M
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	$163.7M	$15.00M
YoY Change	991.33%	-6.25%
LONG-TERM LIABILITIES
Long-Term Debt	$827.0M	$114.0M
YoY Change	625.44%	0.0%
Other Long-Term Liabilities	$257.4M	$171.0M
YoY Change	50.53%	-1.72%
Total Long-Term Liabilities	$1.084B	$285.0M
YoY Change	280.49%	-1.04%
TOTAL LIABILITIES
Total Short-Term Liabilities	$163.7M	$15.00M
Total Long-Term Liabilities	$1.084B	$285.0M
Total Liabilities	$8.077B	$2.106B
YoY Change	283.56%	2.47%
SHAREHOLDERS EQUITY
Retained Earnings	$767.8M	$486.1M
YoY Change	57.96%	8.69%
Common Stock	$16.20M	$9.531M
YoY Change	69.97%	1.16%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$2.638B	$1.428B
YoY Change
Total Liabilities & Shareholders Equity	$10.72B	$3.534B
YoY Change	203.17%	2.78%

Cashflow Statement

Concept	2021 Q3	2020 Q3
OPERATING ACTIVITIES
Net Income	-$44.00M	$68.70M
YoY Change	-164.05%	-555.0%
Depreciation, Depletion And Amortization	$3.500M	$54.82M
YoY Change	-93.62%	-53.65%
Cash From Operating Activities	$14.20M	$14.90M
YoY Change	-4.7%	-1454.55%
INVESTING ACTIVITIES
Capital Expenditures
YoY Change
Acquisitions
YoY Change
Other Investing Activities	-$410.6M	$138.7M
YoY Change	-396.03%	-81.43%
Cash From Investing Activities	-$410.6M	$138.7M
YoY Change	-396.03%	-81.43%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-7.100M	-10.20M
YoY Change	-30.39%	-173.91%
NET CHANGE
Cash From Operating Activities	14.20M	14.90M
Cash From Investing Activities	-410.6M	138.7M
Cash From Financing Activities	-7.100M	-10.20M
Net Change In Cash	-403.5M	143.4M
YoY Change	-381.38%	-81.12%
FREE CASH FLOW
Cash From Operating Activities	$14.20M	$14.90M
Capital Expenditures
Free Cash Flow
YoY Change

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
	dei	Entity Central Index Key EntityCentralIndexKey	0001576018
	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2021
	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q3
	dei	Amendment Flag AmendmentFlag	false
CY2021Q3	spnt	Investments In Related Party Investment Funds Cost InvestmentsInRelatedPartyInvestmentFundsCost	891900000	USD
CY2020Q4	spnt	Investments In Related Party Investment Funds Cost InvestmentsInRelatedPartyInvestmentFundsCost	891900000	USD
CY2021Q3	us-gaap	Trading Securities Debt Amortized Cost TradingSecuritiesDebtAmortizedCost	2111300000	USD
CY2020Q4	us-gaap	Trading Securities Debt Amortized Cost TradingSecuritiesDebtAmortizedCost	91400000	USD
CY2021Q3	spnt	Other Short Term Investments Cost OtherShortTermInvestmentsCost	1057900000	USD
CY2021Q3	us-gaap	Equity Securities Fv Ni Cost EquitySecuritiesFvNiCost	4900000	USD
CY2021Q3	spnt	Other Long Term Investments Cost OtherLongTermInvestmentsCost	400700000	USD
CY2020Q4	spnt	Other Long Term Investments Cost OtherLongTermInvestmentsCost	4000000.0	USD
CY2021Q3	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	161949037	shares
CY2020Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	95582733	shares
CY2021Q3	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	161949037	shares
CY2020Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	95582733	shares
	us-gaap	Cash Acquired From Acquisition CashAcquiredFromAcquisition	740300000	USD
CY2021Q3	us-gaap	Operating Lease Right Of Use Asset Statement Of Financial Position Extensible List OperatingLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2021-01-31#OtherAssets
CY2020Q4	us-gaap	Operating Lease Right Of Use Asset Statement Of Financial Position Extensible List OperatingLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2021-01-31#OtherAssets
CY2020Q4	us-gaap	Operating Lease Liability Statement Of Financial Position Extensible List OperatingLeaseLiabilityStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2021-01-31#AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent
CY2021Q3	us-gaap	Operating Lease Liability Statement Of Financial Position Extensible List OperatingLeaseLiabilityStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2021-01-31#AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent
	dei	Document Type DocumentType	10-Q
	dei	Document Quarterly Report DocumentQuarterlyReport	true
	dei	Document Period End Date DocumentPeriodEndDate	2021-09-30
	dei	Document Transition Report DocumentTransitionReport	false
	dei	Entity File Number EntityFileNumber	001-36052
	dei	Entity Registrant Name EntityRegistrantName	SIRIUSPOINT LTD.
	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	D0
	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	98-1599372
	dei	Entity Address Address Line1 EntityAddressAddressLine1	Point House
	dei	Entity Address Address Line2 EntityAddressAddressLine2	3 Waterloo Lane
	dei	Entity Address City Or Town EntityAddressCityOrTown	Pembroke
	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	HM 08
	dei	Entity Address Country EntityAddressCountry	BM
	dei	City Area Code CityAreaCode	441
	dei	Local Phone Number LocalPhoneNumber	542-3300
	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
	dei	Entity Filer Category EntityFilerCategory	Accelerated Filer
	dei	Entity Small Business EntitySmallBusiness	false
	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
	dei	Entity Shell Company EntityShellCompany	false
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CY2021Q3	us-gaap	Net Income Loss NetIncomeLoss	-44000000.0	USD
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	68700000	USD
	us-gaap	Net Income Loss NetIncomeLoss	156900000	USD
	us-gaap	Net Income Loss NetIncomeLoss	9100000	USD
CY2021Q3	us-gaap	Dividends Dividends	4000000.0	USD
CY2020Q3	us-gaap	Dividends Dividends	0	USD
	us-gaap	Dividends Dividends	9500000	USD
	us-gaap	Dividends Dividends	0	USD
CY2021Q3	us-gaap	Undistributed Earnings Diluted UndistributedEarningsDiluted	-48000000.0	USD
CY2021Q3	us-gaap	Undistributed Earnings UndistributedEarnings	-48000000.0	USD
CY2020Q3	us-gaap	Undistributed Earnings Diluted UndistributedEarningsDiluted	68700000	USD
CY2020Q3	us-gaap	Undistributed Earnings UndistributedEarnings	68700000	USD
	us-gaap	Undistributed Earnings Diluted UndistributedEarningsDiluted	147400000	USD
	us-gaap	Undistributed Earnings UndistributedEarnings	147400000	USD
	us-gaap	Undistributed Earnings UndistributedEarnings	9100000	USD
	us-gaap	Undistributed Earnings Diluted UndistributedEarningsDiluted	9100000	USD
CY2021Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.30
CY2020Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.74
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.94
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.10
CY2021Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.34
CY2020Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.73
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.92
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.10
CY2021Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	159225772	shares
CY2020Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	92613393	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	145095270	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	92466813	shares
CY2021Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	160240888	shares
CY2020Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	92969646	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	147597964	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	92877674	shares
CY2021Q3	us-gaap	Profit Loss ProfitLoss	-47400000	USD
CY2020Q3	us-gaap	Profit Loss ProfitLoss	68700000	USD
	us-gaap	Profit Loss ProfitLoss	155100000	USD
	us-gaap	Profit Loss ProfitLoss	9100000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-1800000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	0	USD
	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-300000	USD
	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	0	USD
CY2021Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-1800000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	0	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-300000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	0	USD
CY2021Q3	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	-49200000	USD
CY2020Q3	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	68700000	USD
	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	154800000	USD
	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	9100000	USD
CY2021Q3	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	-3400000	USD
CY2020Q3	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	0	USD
	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	-1800000	USD
	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	0	USD
CY2021Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-45800000	USD
CY2020Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	68700000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	156600000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	9100000	USD
CY2021Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	2638000000	USD
CY2020Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1428500000	USD
CY2021Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	2638000000	USD
CY2020Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	1428500000	USD
	us-gaap	Profit Loss ProfitLoss	155100000	USD
	us-gaap	Profit Loss ProfitLoss	9100000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	17000000.0	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	4700000	USD
	us-gaap	Interest Expense Domestic Deposit Liabilities InterestExpenseDomesticDepositLiabilities	3900000	USD
	us-gaap	Interest Expense Domestic Deposit Liabilities InterestExpenseDomesticDepositLiabilities	-100000	USD
	spnt	Realized And Unrealized Gain Loss On Investments And Derivatives RealizedAndUnrealizedGainLossOnInvestmentsAndDerivatives	52900000	USD
	spnt	Realized And Unrealized Gain Loss On Investments And Derivatives RealizedAndUnrealizedGainLossOnInvestmentsAndDerivatives	56800000	USD
	spnt	Net Investment Income Loss And Gain Loss On Investments Related Party NetInvestmentIncomeLossAndGainLossOnInvestmentsRelatedParty	401200000	USD
	spnt	Net Investment Income Loss And Gain Loss On Investments Related Party NetInvestmentIncomeLossAndGainLossOnInvestmentsRelatedParty	8300000	USD
	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	16500000	USD
	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	3100000	USD
	us-gaap	Other Income OtherIncome	47100000	USD
	us-gaap	Other Income OtherIncome	0	USD
	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	5800000	USD
	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	0	USD
	spnt	Accretion Amortization Of Discounts And Premiums AccretionAmortizationOfDiscountsAndPremiums	-9400000	USD
	spnt	Accretion Amortization Of Discounts And Premiums AccretionAmortizationOfDiscountsAndPremiums	2000000.0	USD
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	4100000	USD
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	0	USD
	us-gaap	Other Depreciation And Amortization OtherDepreciationAndAmortization	4500000	USD
	us-gaap	Other Depreciation And Amortization OtherDepreciationAndAmortization	0	USD
	us-gaap	Increase Decrease In Premiums Receivable IncreaseDecreaseInPremiumsReceivable	-27400000	USD
	us-gaap	Increase Decrease In Premiums Receivable IncreaseDecreaseInPremiumsReceivable	-37400000	USD
	spnt	Increase Decrease In Deferred Policy Acquisition Costs And Present Value Of Future Insurance Profits IncreaseDecreaseInDeferredPolicyAcquisitionCostsAndPresentValueOfFutureInsuranceProfits	3700000	USD
	spnt	Increase Decrease In Deferred Policy Acquisition Costs And Present Value Of Future Insurance Profits IncreaseDecreaseInDeferredPolicyAcquisitionCostsAndPresentValueOfFutureInsuranceProfits	-22800000	USD
	us-gaap	Increase Decrease In Prepaid Reinsurance Premiums IncreaseDecreaseInPrepaidReinsurancePremiums	38800000	USD
	us-gaap	Increase Decrease In Prepaid Reinsurance Premiums IncreaseDecreaseInPrepaidReinsurancePremiums	9700000	USD
	us-gaap	Increase Decrease In Reinsurance Recoverable IncreaseDecreaseInReinsuranceRecoverable	368400000	USD
	us-gaap	Increase Decrease In Reinsurance Recoverable IncreaseDecreaseInReinsuranceRecoverable	8100000	USD
	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	200000	USD
	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	-4300000	USD
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-63600000	USD
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	3600000	USD
	us-gaap	Increase Decrease In Interest And Dividends Receivable IncreaseDecreaseInInterestAndDividendsReceivable	-300000	USD
	us-gaap	Increase Decrease In Interest And Dividends Receivable IncreaseDecreaseInInterestAndDividendsReceivable	-300000	USD
	us-gaap	Increase Decrease In Liability For Claims And Claims Adjustment Expense Reserve IncreaseDecreaseInLiabilityForClaimsAndClaimsAdjustmentExpenseReserve	626100000	USD
	us-gaap	Increase Decrease In Liability For Claims And Claims Adjustment Expense Reserve IncreaseDecreaseInLiabilityForClaimsAndClaimsAdjustmentExpenseReserve	77800000	USD
	us-gaap	Increase Decrease In Unearned Premiums IncreaseDecreaseInUnearnedPremiums	30600000	USD
	us-gaap	Increase Decrease In Unearned Premiums IncreaseDecreaseInUnearnedPremiums	-50200000	USD
	us-gaap	Increase Decrease In Reinsurance Payables IncreaseDecreaseInReinsurancePayables	130100000	USD
	us-gaap	Increase Decrease In Reinsurance Payables IncreaseDecreaseInReinsurancePayables	36600000	USD
	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-110900000	USD
	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-5800000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	26600000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	45300000	USD
	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	2275100000	USD
	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	444100000	USD
	us-gaap	Proceeds From Sale Maturity And Collections Of Investments ProceedsFromSaleMaturityAndCollectionsOfInvestments	1995000000	USD
	us-gaap	Proceeds From Sale Maturity And Collections Of Investments ProceedsFromSaleMaturityAndCollectionsOfInvestments	441600000	USD
	spnt	Payments To Acquire Investments To Cover Short Sales PaymentsToAcquireInvestmentsToCoverShortSales	12500000	USD
	spnt	Payments To Acquire Investments To Cover Short Sales PaymentsToAcquireInvestmentsToCoverShortSales	100000	USD
	us-gaap	Investment Sold Not Yet Purchased Sale Proceeds InvestmentSoldNotYetPurchasedSaleProceeds	4700000	USD
	us-gaap	Investment Sold Not Yet Purchased Sale Proceeds InvestmentSoldNotYetPurchasedSaleProceeds	15700000	USD
	spnt	Proceeds From Payments For Broker Dealer Related Receivables And Payables Net Investing Activities ProceedsFromPaymentsForBrokerDealerRelatedReceivablesAndPayablesNetInvestingActivities	45500000	USD
	spnt	Proceeds From Payments For Broker Dealer Related Receivables And Payables Net Investing Activities ProceedsFromPaymentsForBrokerDealerRelatedReceivablesAndPayablesNetInvestingActivities	-81200000	USD
	spnt	Proceeds From Acquisition Net ProceedsFromAcquisitionNet	631900000	USD
	spnt	Proceeds From Acquisition Net ProceedsFromAcquisitionNet	0	USD
	us-gaap	Proceeds From Divestiture Of Businesses Net Of Cash Divested ProceedsFromDivestitureOfBusinessesNetOfCashDivested	20500000	USD
	us-gaap	Proceeds From Divestiture Of Businesses Net Of Cash Divested ProceedsFromDivestitureOfBusinessesNetOfCashDivested	0	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	410000000.0	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-68100000	USD
	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	50800000	USD
	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	0	USD
	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	300000	USD
	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	300000	USD
	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	8200000	USD
	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	0	USD
	spnt	Proceeds From Payments For Deposit Contracts Liabilities ProceedsFromPaymentsForDepositContractsLiabilities	-9400000	USD
	spnt	Proceeds From Payments For Deposit Contracts Liabilities ProceedsFromPaymentsForDepositContractsLiabilities	-16400000	USD
	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	100000	USD
	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	1000000.0	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	33000000.0	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-15700000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	469600000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-38500000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1713900000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1654000000	USD
CY2021Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	2183500000	USD
CY2020Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1615500000	USD
CY2020Q4	us-gaap	Premiums Receivable At Carrying Value PremiumsReceivableAtCarryingValue	441900000	USD
CY2020Q4	us-gaap	Deferred Policy Acquisition Costs And Value Of Business Acquired DeferredPolicyAcquisitionCostsAndValueOfBusinessAcquired	68600000	USD
CY2020Q4	us-gaap	Prepaid Reinsurance Premiums PrepaidReinsurancePremiums	20500000	USD
CY2020Q4	us-gaap	Assets Assets	3535200000	USD
CY2020Q4	us-gaap	Reinsurance Payable ReinsurancePayable	78100000	USD
CY2020Q4	us-gaap	Unearned Premiums UnearnedPremiums	284800000	USD
CY2020Q4	us-gaap	Liabilities Liabilities	1969900000	USD
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	1563900000	USD
CY2020Q3	us-gaap	Premiums Written Gross PremiumsWrittenGross	124700000	USD
	us-gaap	Premiums Written Gross PremiumsWrittenGross	398200000	USD
CY2020Q3	us-gaap	Ceded Premiums Written CededPremiumsWritten	8300000	USD
	us-gaap	Ceded Premiums Written CededPremiumsWritten	29200000	USD
CY2020Q3	us-gaap	Premiums Written Net PremiumsWrittenNet	116400000	USD
	us-gaap	Premiums Written Net PremiumsWrittenNet	369000000.0	USD
CY2020Q3	us-gaap	Increase Decrease In Unearned Premiums Net IncreaseDecreaseInUnearnedPremiumsNet	25300000	USD
	us-gaap	Increase Decrease In Unearned Premiums Net IncreaseDecreaseInUnearnedPremiumsNet	59900000	USD
CY2020Q3	us-gaap	Premiums Earned Net PremiumsEarnedNet	141700000	USD
	us-gaap	Premiums Earned Net PremiumsEarnedNet	428900000	USD
CY2020Q3	us-gaap	Undistributed Earnings Diluted UndistributedEarningsDiluted	68700000	USD
CY2020Q3	us-gaap	Undistributed Earnings UndistributedEarnings	68700000	USD
	us-gaap	Undistributed Earnings UndistributedEarnings	9100000	USD
	us-gaap	Undistributed Earnings Diluted UndistributedEarningsDiluted	9100000	USD
	us-gaap	Increase Decrease In Premiums Receivable IncreaseDecreaseInPremiumsReceivable	-37400000	USD
	spnt	Increase Decrease In Deferred Policy Acquisition Costs And Present Value Of Future Insurance Profits IncreaseDecreaseInDeferredPolicyAcquisitionCostsAndPresentValueOfFutureInsuranceProfits	-22800000	USD
	us-gaap	Increase Decrease In Prepaid Reinsurance Premiums IncreaseDecreaseInPrepaidReinsurancePremiums	9700000	USD
	us-gaap	Increase Decrease In Unearned Premiums IncreaseDecreaseInUnearnedPremiums	-50200000	USD
	us-gaap	Increase Decrease In Reinsurance Payables IncreaseDecreaseInReinsurancePayables	36600000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	45300000	USD
CY2021Q1	spnt	Class Of Warrant Or Right Consecutive Trading Days ClassOfWarrantOrRightConsecutiveTradingDays	P30D
	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	4	segment
CY2021Q3	us-gaap	Premiums Written Gross PremiumsWrittenGross	653700000	USD
CY2021Q3	us-gaap	Premiums Written Net PremiumsWrittenNet	491300000	USD
CY2021Q3	us-gaap	Premiums Earned Net PremiumsEarnedNet	512100000	USD
CY2021Q3	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Incurred Claims1 LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseIncurredClaims1	581700000	USD
CY2021Q3	us-gaap	Deferred Policy Acquisition Costs And Present Value Of Future Profits Amortization1 DeferredPolicyAcquisitionCostsAndPresentValueOfFutureProfitsAmortization1	106900000	USD
CY2021Q3	us-gaap	Other Underwriting Expense OtherUnderwritingExpense	89300000	USD
CY2021Q3	us-gaap	Underwriting Income Loss UnderwritingIncomeLoss	-265800000	USD
CY2021Q3	us-gaap	Other Income OtherIncome	20700000	USD
CY2021Q3	spnt	Net Investment Income Loss And Gain Loss On Investments NetInvestmentIncomeLossAndGainLossOnInvestments	199800000	USD
CY2021Q3	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	19500000	USD
CY2021Q3	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	2000000.0	USD
CY2021Q3	us-gaap	Interest Expense InterestExpense	9700000	USD
CY2021Q3	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	16100000	USD
CY2021Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-60400000	USD
CY2021Q3	us-gaap	Loss Ratio LossRatio	1.136
CY2021Q3	us-gaap	Acquisition Cost Ratio AcquisitionCostRatio	0.209
CY2021Q3	us-gaap	Underwriting Expense Ratio UnderwritingExpenseRatio	0.174
CY2021Q3	us-gaap	Combined Ratio CombinedRatio	1.519
CY2020Q3	us-gaap	Premiums Written Gross PremiumsWrittenGross	124700000	USD
CY2020Q3	us-gaap	Premiums Written Net PremiumsWrittenNet	116400000	USD
CY2020Q3	us-gaap	Premiums Earned Net PremiumsEarnedNet	141700000	USD
CY2020Q3	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Incurred Claims1 LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseIncurredClaims1	110500000	USD
CY2020Q3	us-gaap	Deferred Policy Acquisition Costs And Present Value Of Future Profits Amortization1 DeferredPolicyAcquisitionCostsAndPresentValueOfFutureProfitsAmortization1	54800000	USD
CY2020Q3	us-gaap	Other Underwriting Expense OtherUnderwritingExpense	6100000	USD
CY2020Q3	us-gaap	Underwriting Income Loss UnderwritingIncomeLoss	-29700000	USD
CY2020Q3	spnt	Net Investment Income Loss And Gain Loss On Investments NetInvestmentIncomeLossAndGainLossOnInvestments	122000000.0	USD
CY2020Q3	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	14900000	USD
CY2020Q3	us-gaap	Interest Expense InterestExpense	2100000	USD
CY2020Q3	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-5900000	USD
CY2020Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	69400000	USD
CY2020Q3	us-gaap	Loss Ratio LossRatio	0.780
CY2020Q3	us-gaap	Acquisition Cost Ratio AcquisitionCostRatio	0.387
CY2020Q3	us-gaap	Underwriting Expense Ratio UnderwritingExpenseRatio	0.043
CY2020Q3	us-gaap	Combined Ratio CombinedRatio	1.210
	us-gaap	Premiums Written Gross PremiumsWrittenGross	1583000000	USD
	us-gaap	Premiums Written Net PremiumsWrittenNet	1260600000	USD
	us-gaap	Premiums Earned Net PremiumsEarnedNet	1234400000	USD
	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Incurred Claims1 LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseIncurredClaims1	984900000	USD
	us-gaap	Deferred Policy Acquisition Costs And Present Value Of Future Profits Amortization1 DeferredPolicyAcquisitionCostsAndPresentValueOfFutureProfitsAmortization1	281500000	USD
	us-gaap	Other Income OtherIncome	47100000	USD
	us-gaap	Other Underwriting Expense OtherUnderwritingExpense	191800000	USD
	us-gaap	Underwriting Income Loss UnderwritingIncomeLoss	-223800000	USD
	spnt	Net Investment Income Loss And Gain Loss On Investments NetInvestmentIncomeLossAndGainLossOnInvestments	463700000	USD
	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	113500000	USD
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	4100000	USD
	us-gaap	Interest Expense InterestExpense	24400000	USD
	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	16500000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	161500000	USD
	us-gaap	Loss Ratio LossRatio	0.798
	us-gaap	Acquisition Cost Ratio AcquisitionCostRatio	0.228
	us-gaap	Underwriting Expense Ratio UnderwritingExpenseRatio	0.155
	us-gaap	Combined Ratio CombinedRatio	1.181
	us-gaap	Premiums Written Gross PremiumsWrittenGross	398200000	USD
	us-gaap	Premiums Written Net PremiumsWrittenNet	369000000.0	USD
	us-gaap	Premiums Earned Net PremiumsEarnedNet	428900000	USD
	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Incurred Claims1 LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseIncurredClaims1	287400000	USD
	us-gaap	Deferred Policy Acquisition Costs And Present Value Of Future Profits Amortization1 DeferredPolicyAcquisitionCostsAndPresentValueOfFutureProfitsAmortization1	147700000	USD
	us-gaap	Other Underwriting Expense OtherUnderwritingExpense	21100000	USD
	us-gaap	Underwriting Income Loss UnderwritingIncomeLoss	-27300000	USD
	spnt	Net Investment Income Loss And Gain Loss On Investments NetInvestmentIncomeLossAndGainLossOnInvestments	74100000	USD
	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	30200000	USD
	us-gaap	Interest Expense InterestExpense	6200000	USD
	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	3100000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	13500000	USD
	us-gaap	Loss Ratio LossRatio	0.670
	us-gaap	Acquisition Cost Ratio AcquisitionCostRatio	0.344
	us-gaap	Underwriting Expense Ratio UnderwritingExpenseRatio	0.049
	us-gaap	Combined Ratio CombinedRatio	1.063
CY2021Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	701200000	USD
CY2020Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	526000000.0	USD
CY2021Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	2183500000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1713900000	USD
CY2021Q3	us-gaap	Restricted Investments RestrictedInvestments	997100000	USD
CY2020Q4	us-gaap	Restricted Investments RestrictedInvestments	86400000	USD
CY2021Q3	spnt	Cash Cash Equivalents Restricted Cash Restricted Cash Equivalents And Restricted Investments CashCashEquivalentsRestrictedCashRestrictedCashEquivalentsAndRestrictedInvestments	3180600000	USD
CY2020Q4	spnt	Cash Cash Equivalents Restricted Cash Restricted Cash Equivalents And Restricted Investments CashCashEquivalentsRestrictedCashRestrictedCashEquivalentsAndRestrictedInvestments	1800300000	USD
CY2021Q3	us-gaap	Trading Securities Debt Amortized Cost TradingSecuritiesDebtAmortizedCost	2111300000	USD
CY2021Q3	spnt	Debt Securities Trading Accumulated Unrecognized Gain DebtSecuritiesTradingAccumulatedUnrecognizedGain	5500000	USD
CY2021Q3	spnt	Debt Securities Trading Accumulated Unrecognized Loss DebtSecuritiesTradingAccumulatedUnrecognizedLoss	6600000	USD
CY2021Q3	spnt	Debt Securities Trading Accumulated Net Foreign Currency Gains Losses DebtSecuritiesTradingAccumulatedNetForeignCurrencyGainsLosses	-9300000	USD
CY2021Q3	us-gaap	Trading Securities Debt TradingSecuritiesDebt	2100900000	USD
CY2020Q4	us-gaap	Trading Securities Debt Amortized Cost TradingSecuritiesDebtAmortizedCost	91400000	USD
CY2020Q4	spnt	Debt Securities Trading Accumulated Unrecognized Gain DebtSecuritiesTradingAccumulatedUnrecognizedGain	10900000	USD
CY2020Q4	spnt	Debt Securities Trading Accumulated Unrecognized Loss DebtSecuritiesTradingAccumulatedUnrecognizedLoss	1000000.0	USD
CY2020Q4	spnt	Debt Securities Trading Accumulated Net Foreign Currency Gains Losses DebtSecuritiesTradingAccumulatedNetForeignCurrencyGainsLosses	0	USD
CY2020Q4	us-gaap	Trading Securities Debt TradingSecuritiesDebt	101300000	USD
	spnt	Debt Securities Trading Weighted Average Duration DebtSecuritiesTradingWeightedAverageDuration	P1Y7M6D
	spnt	Debt Securities Trading Excluding Short Term Investments Weighted Average Duration DebtSecuritiesTradingExcludingShortTermInvestmentsWeightedAverageDuration	P2Y2M12D
CY2020	spnt	Debt Securities Trading Weighted Average Duration DebtSecuritiesTradingWeightedAverageDuration	P10Y6M
CY2020	spnt	Debt Securities Trading Excluding Short Term Investments Weighted Average Duration DebtSecuritiesTradingExcludingShortTermInvestmentsWeightedAverageDuration	P10Y6M
CY2021Q3	spnt	Debt Securities Trading Maturity Allocated And Single Maturity Date Rolling Within One Year Amortized Cost DebtSecuritiesTradingMaturityAllocatedAndSingleMaturityDateRollingWithinOneYearAmortizedCost	143900000	USD
CY2021Q3	spnt	Debt Securities Trading Maturity Allocated And Single Maturity Date Rolling Within One Year Fair Value DebtSecuritiesTradingMaturityAllocatedAndSingleMaturityDateRollingWithinOneYearFairValue	143900000	USD
CY2020Q4	spnt	Debt Securities Trading Maturity Allocated And Single Maturity Date Rolling Within One Year Amortized Cost DebtSecuritiesTradingMaturityAllocatedAndSingleMaturityDateRollingWithinOneYearAmortizedCost	50000000.0	USD
CY2020Q4	spnt	Debt Securities Trading Maturity Allocated And Single Maturity Date Rolling Within One Year Fair Value DebtSecuritiesTradingMaturityAllocatedAndSingleMaturityDateRollingWithinOneYearFairValue	50600000	USD
CY2021Q3	spnt	Debt Securities Trading Maturity Allocated And Single Maturity Date Rolling After One Through Five Years Amortized Cost DebtSecuritiesTradingMaturityAllocatedAndSingleMaturityDateRollingAfterOneThroughFiveYearsAmortizedCost	838300000	USD
CY2021Q3	spnt	Debt Securities Trading Maturity Allocated And Single Maturity Date Rolling After One Through Five Years Fair Value DebtSecuritiesTradingMaturityAllocatedAndSingleMaturityDateRollingAfterOneThroughFiveYearsFairValue	829700000	USD
CY2020Q4	spnt	Debt Securities Trading Maturity Allocated And Single Maturity Date Rolling After One Through Five Years Amortized Cost DebtSecuritiesTradingMaturityAllocatedAndSingleMaturityDateRollingAfterOneThroughFiveYearsAmortizedCost	2800000	USD
CY2020Q4	spnt	Debt Securities Trading Maturity Allocated And Single Maturity Date Rolling After One Through Five Years Fair Value DebtSecuritiesTradingMaturityAllocatedAndSingleMaturityDateRollingAfterOneThroughFiveYearsFairValue	3000000.0	USD
CY2021Q3	spnt	Debt Securities Trading Maturity Allocated And Single Maturity Date Rolling After Five Through Ten Years Amortized Cost DebtSecuritiesTradingMaturityAllocatedAndSingleMaturityDateRollingAfterFiveThroughTenYearsAmortizedCost	105400000	USD
CY2021Q3	spnt	Debt Securities Trading Maturity Allocated And Single Maturity Date Rolling After Five Through Ten Years Fair Value DebtSecuritiesTradingMaturityAllocatedAndSingleMaturityDateRollingAfterFiveThroughTenYearsFairValue	104400000	USD
CY2020Q4	spnt	Debt Securities Trading Maturity Allocated And Single Maturity Date Rolling After Five Through Ten Years Amortized Cost DebtSecuritiesTradingMaturityAllocatedAndSingleMaturityDateRollingAfterFiveThroughTenYearsAmortizedCost	0	USD
CY2020Q4	spnt	Debt Securities Trading Maturity Allocated And Single Maturity Date Rolling After Five Through Ten Years Fair Value DebtSecuritiesTradingMaturityAllocatedAndSingleMaturityDateRollingAfterFiveThroughTenYearsFairValue	0	USD
CY2021Q3	spnt	Debt Securities Trading Maturity Allocated And Single Maturity Date Rolling After Ten Years Amortized Cost DebtSecuritiesTradingMaturityAllocatedAndSingleMaturityDateRollingAfterTenYearsAmortizedCost	34600000	USD
CY2021Q3	spnt	Debt Securities Trading Maturity Allocated And Single Maturity Date Rolling After Ten Years Fair Value DebtSecuritiesTradingMaturityAllocatedAndSingleMaturityDateRollingAfterTenYearsFairValue	34400000	USD
CY2020Q4	spnt	Debt Securities Trading Maturity Allocated And Single Maturity Date Rolling After Ten Years Amortized Cost DebtSecuritiesTradingMaturityAllocatedAndSingleMaturityDateRollingAfterTenYearsAmortizedCost	29400000	USD
CY2020Q4	spnt	Debt Securities Trading Maturity Allocated And Single Maturity Date Rolling After Ten Years Fair Value DebtSecuritiesTradingMaturityAllocatedAndSingleMaturityDateRollingAfterTenYearsFairValue	37700000	USD
CY2021Q3	us-gaap	Trading Securities Debt Amortized Cost TradingSecuritiesDebtAmortizedCost	2111300000	USD
CY2021Q3	us-gaap	Trading Securities Debt TradingSecuritiesDebt	2100900000	USD
CY2020Q4	us-gaap	Trading Securities Debt Amortized Cost TradingSecuritiesDebtAmortizedCost	91400000	USD
CY2020Q4	us-gaap	Trading Securities Debt TradingSecuritiesDebt	101300000	USD
CY2021Q3	us-gaap	Trading Securities Debt TradingSecuritiesDebt	2100900000	USD
CY2020Q4	us-gaap	Trading Securities Debt TradingSecuritiesDebt	101300000	USD
CY2021Q3	us-gaap	Equity Securities Fv Ni Cost EquitySecuritiesFvNiCost	4900000	USD
CY2021Q3	spnt	Equity Securities Fvni Accumulated Unrecognized Gain EquitySecuritiesFVNIAccumulatedUnrecognizedGain	100000	USD
CY2021Q3	spnt	Equity Securities Fvni Accumulated Unrecognized Loss EquitySecuritiesFVNIAccumulatedUnrecognizedLoss	1600000	USD
CY2021Q3	spnt	Equity Securities Fvni Accumulated Net Foreign Currency Gains Losses EquitySecuritiesFVNIAccumulatedNetForeignCurrencyGainsLosses	0	USD
CY2021Q3	us-gaap	Equity Securities Fv Ni Current And Noncurrent EquitySecuritiesFvNiCurrentAndNoncurrent	3400000	USD
CY2021Q3	spnt	Other Long Term Investments Cost OtherLongTermInvestmentsCost	400700000	USD
CY2021Q3	spnt	Other Long Term Investments Accumulated Unrecognized Gain OtherLongTermInvestmentsAccumulatedUnrecognizedGain	55000000.0	USD
CY2021Q3	spnt	Other Long Term Investments Accumulated Unrecognized Loss OtherLongTermInvestmentsAccumulatedUnrecognizedLoss	1700000	USD
CY2021Q3	spnt	Other Long Term Investments Accumulated Net Foreign Currency Gains Losses OtherLongTermInvestmentsAccumulatedNetForeignCurrencyGainsLosses	500000	USD
CY2021Q3	us-gaap	Other Long Term Investments OtherLongTermInvestments	454500000	USD
CY2020Q4	spnt	Other Long Term Investments Cost OtherLongTermInvestmentsCost	4000000.0	USD
CY2020Q4	spnt	Other Long Term Investments Accumulated Unrecognized Gain OtherLongTermInvestmentsAccumulatedUnrecognizedGain	0	USD
CY2020Q4	spnt	Other Long Term Investments Accumulated Unrecognized Loss OtherLongTermInvestmentsAccumulatedUnrecognizedLoss	0	USD
CY2020Q4	spnt	Other Long Term Investments Accumulated Net Foreign Currency Gains Losses OtherLongTermInvestmentsAccumulatedNetForeignCurrencyGainsLosses	0	USD
CY2020Q4	us-gaap	Other Long Term Investments OtherLongTermInvestments	4000000.0	USD
CY2021Q3	us-gaap	Equity Securities Fv Ni Current And Noncurrent EquitySecuritiesFvNiCurrentAndNoncurrent	3400000	USD
CY2021Q3	us-gaap	Other Long Term Investments OtherLongTermInvestments	454500000	USD
CY2020Q4	us-gaap	Other Long Term Investments OtherLongTermInvestments	4000000.0	USD
CY2021Q3	spnt	Investments In Related Party Investment Funds Cost InvestmentsInRelatedPartyInvestmentFundsCost	891900000	USD
CY2021Q3	spnt	Investments In Related Party Investment Funds InvestmentsInRelatedPartyInvestmentFunds	1456800000	USD
CY2020Q4	spnt	Investments In Related Party Investment Funds Cost InvestmentsInRelatedPartyInvestmentFundsCost	891900000	USD
CY2020Q4	spnt	Investments In Related Party Investment Funds InvestmentsInRelatedPartyInvestmentFunds	1055600000	USD
CY2021Q3	us-gaap	Assets Fair Value Disclosure AssetsFairValueDisclosure	5075800000	USD
CY2021Q3	us-gaap	Financial Instruments Sold Not Yet Purchased At Fair Value FinancialInstrumentsSoldNotYetPurchasedAtFairValue	2900000	USD
CY2021Q3	us-gaap	Shares Subject To Mandatory Redemption Settlement Terms Amount SharesSubjectToMandatoryRedemptionSettlementTermsAmount	103400000	USD
CY2021Q3	us-gaap	Derivative Liabilities DerivativeLiabilities	2800000	USD
CY2021Q3	us-gaap	Liabilities Fair Value Disclosure LiabilitiesFairValueDisclosure	109100000	USD
CY2020Q4	us-gaap	Assets Fair Value Disclosure AssetsFairValueDisclosure	1162100000	USD
CY2020Q4	us-gaap	Financial Instruments Sold Not Yet Purchased At Fair Value FinancialInstrumentsSoldNotYetPurchasedAtFairValue	12000000.0	USD
CY2020Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	1000000.0	USD
CY2020Q4	us-gaap	Liabilities Fair Value Disclosure LiabilitiesFairValueDisclosure	13000000.0	USD
CY2021Q3	spnt	Fair Value Liabilities Level2 To Level3 Transfers Amount FairValueLiabilitiesLevel2ToLevel3TransfersAmount	0	USD
CY2021Q3	spnt	Fair Value Assets Level3 To Level2 Transfers Amount FairValueAssetsLevel3ToLevel2TransfersAmount	0	USD
CY2021Q3	spnt	Fair Value Liabilities Level3 To Level2 Transfers Amount FairValueLiabilitiesLevel3ToLevel2TransfersAmount	0	USD
CY2021Q3	spnt	Fair Value Assets Level2 To Level3 Transfers Amount FairValueAssetsLevel2ToLevel3TransfersAmount	0	USD
CY2020Q4	spnt	Fair Value Assets Level2 To Level3 Transfers Amount FairValueAssetsLevel2ToLevel3TransfersAmount	0	USD
CY2020Q4	spnt	Fair Value Liabilities Level3 To Level2 Transfers Amount FairValueLiabilitiesLevel3ToLevel2TransfersAmount	0	USD
CY2020Q4	spnt	Fair Value Liabilities Level2 To Level3 Transfers Amount FairValueLiabilitiesLevel2ToLevel3TransfersAmount	0	USD
CY2020Q4	spnt	Fair Value Assets Level3 To Level2 Transfers Amount FairValueAssetsLevel3ToLevel2TransfersAmount	0	USD
CY2021Q2	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	376600000	USD
CY2021Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Net FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersNet	-700000	USD
CY2021Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Purchases FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases	22200000	USD
CY2021Q3	spnt	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Acquisition FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetAcquisition	0	USD
CY2021Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Sales FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales	46200000	USD
CY2021Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Earnings1 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1	1500000	USD
CY2021Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	353400000	USD
CY2021Q2	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliations Recurring Basis Liability Value FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue	104500000	USD
CY2021Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Transfers Net FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityTransfersNet	-700000	USD
CY2021Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Purchases FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityPurchases	100000	USD
CY2021Q3	spnt	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Acquisition FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityAcquisition	0	USD
CY2021Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Sales FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySales	1900000	USD
CY2021Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Gain Loss Included In Earnings FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings	21900000	USD
CY2021Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliations Recurring Basis Liability Value FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue	80100000	USD
CY2020Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	5200000	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Net FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersNet	-1200000	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Purchases FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases	63700000	USD
	spnt	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Acquisition FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetAcquisition	294900000	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Sales FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales	52200000	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Earnings1 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1	43000000.0	USD
CY2021Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	353400000	USD
CY2020Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliations Recurring Basis Liability Value FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue	1000000.0	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Transfers Net FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityTransfersNet	-28200000	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Purchases FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityPurchases	138000000.0	USD
	spnt	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Acquisition FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityAcquisition	2700000	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Sales FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySales	1900000	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Gain Loss Included In Earnings FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings	31500000	USD
CY2021Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliations Recurring Basis Liability Value FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue	80100000	USD
CY2020Q2	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	5200000	USD
CY2020Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Net FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersNet	-1200000	USD
CY2020Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Purchases FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases	0	USD
CY2020Q3	spnt	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Acquisition FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetAcquisition	0	USD
CY2020Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Sales FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales	0	USD
CY2020Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Earnings1 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1	0	USD
CY2020Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	4000000.0	USD
CY2019Q4	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	4000000.0	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Net FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersNet	-5600000	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Purchases FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetPurchases	5500000	USD
	spnt	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Acquisition FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetAcquisition	0	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Sales FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSales	0	USD
	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss Included In Earnings1 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1	100000	USD
CY2020Q3	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Value FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue	4000000.0	USD
	us-gaap	Schedule Of Liability For Unpaid Claims And Claims Adjustment Expense ScheduleOfLiabilityForUnpaidClaimsAndClaimsAdjustmentExpense	<div style="margin-top:9pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The following table represents the activity in the loss and loss adjustment expense reserves for the nine months ended September 30, 2021 and 2020:</span></div><div style="margin-top:5pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:100.000%"><tr><td style="width:1.0%"/><td style="width:73.453%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:11.251%"/><td style="width:0.1%"/><td style="width:0.1%"/><td style="width:0.544%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:11.252%"/><td style="width:0.1%"/></tr><tr><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">September 30, 2021</span></td><td colspan="3" style="padding:0 1pt"/><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">September 30, 2020</span></td></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Gross reserves for loss and loss adjustment expenses, beginning of period</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">1,310.1 </span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">1,111.7 </span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Less: loss and loss adjustment expenses recoverable, beginning of period</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">(14.4)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">(5.5)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Less: deferred charges on retroactive reinsurance contracts</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">(6.0)</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">(6.7)</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Net reserves for loss and loss adjustment expenses, beginning of period</span></td><td colspan="2" style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">1,289.7 </span></td><td style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">1,099.5 </span></td><td style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Increase (decrease) in net loss and loss adjustment expenses incurred in respect of losses occurring in:</span></td><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%"> Current year</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">1,010.8 </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">302.3 </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%"> Prior years</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">(25.9)</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">(14.9)</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Total incurred loss and loss adjustment expenses</span></td><td colspan="2" style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">984.9 </span></td><td style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">287.4 </span></td><td style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Net loss and loss adjustment expenses paid in respect of losses occurring in:</span></td><td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:0 1pt"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%"> Current year</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">(162.1)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">(43.5)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%"> Prior years</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">(543.9)</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">(173.4)</span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Total net paid losses</span></td><td colspan="2" style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">(706.0)</span></td><td style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">(216.9)</span></td><td style="background-color:#ffffff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Foreign currency translation</span></td><td colspan="2" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">(19.5)</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">(3.4)</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Amounts acquired as a result of Sirius Group acquisition </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:5.85pt;font-weight:400;line-height:100%;position:relative;top:-3.15pt;vertical-align:baseline"> (1)</span></div></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">2,467.8 </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">— </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Net reserves for loss and loss adjustment expenses, end of period</span></td><td colspan="2" style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">4,016.9 </span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">1,166.6 </span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Plus: loss and loss adjustment expenses recoverable, end of period</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">843.5 </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">13.6 </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:bottom"><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Plus: deferred charges on retroactive reinsurance contracts </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:5.85pt;font-weight:400;line-height:100%;position:relative;top:-3.15pt;vertical-align:baseline">(2)</span></div></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">1.9 </span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#cceeff;padding:0 1pt"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">6.0 </span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Gross reserves for loss and loss adjustment expenses, end of period</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">4,862.3 </span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="3" style="background-color:#ffffff;padding:0 1pt"/><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">1,186.2 </span></td><td style="background-color:#ffffff;border-bottom:3pt double #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr></table></div><div style="margin-top:1pt;padding-left:18pt;text-align:justify;text-indent:-18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:120%">(1)</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:120%;padding-left:8.68pt">Represents the fair value of Sirius Group’s reserves for claims and claim expenses, net of reinsurance recoverables, acquired at February 26, 2021. See Note 3 for additional information related to the acquisition of Sirius Group.</span></div><div style="margin-top:6pt;padding-left:18pt;text-align:justify;text-indent:-18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:120%">(2)</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:120%;padding-left:8.68pt">Deferred charges on retroactive contracts are recorded in other assets on the Company’s condensed consolidated balance sheets.</span></div>
CY2020Q4	us-gaap	Liability For Claims And Claims Adjustment Expense LiabilityForClaimsAndClaimsAdjustmentExpense	1310100000	USD
CY2019Q4	us-gaap	Liability For Claims And Claims Adjustment Expense LiabilityForClaimsAndClaimsAdjustmentExpense	1111700000	USD
CY2020Q4	us-gaap	Reinsurance Recoverables On Paid And Unpaid Losses ReinsuranceRecoverablesOnPaidAndUnpaidLosses	14400000	USD
CY2019Q4	us-gaap	Reinsurance Recoverables On Paid And Unpaid Losses ReinsuranceRecoverablesOnPaidAndUnpaidLosses	5500000	USD
CY2020Q4	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Opening Balance Adjustments LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseOpeningBalanceAdjustments	-6000000.0	USD
CY2019Q4	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Opening Balance Adjustments LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseOpeningBalanceAdjustments	-6700000	USD
CY2020Q4	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Net LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseNet	1289700000	USD
CY2019Q4	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Net LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseNet	1099500000	USD
	us-gaap	Supplemental Information For Property Casualty Insurance Underwriters Current Year Claims And Claims Adjustment Expense SupplementalInformationForPropertyCasualtyInsuranceUnderwritersCurrentYearClaimsAndClaimsAdjustmentExpense	1010800000	USD
	us-gaap	Supplemental Information For Property Casualty Insurance Underwriters Current Year Claims And Claims Adjustment Expense SupplementalInformationForPropertyCasualtyInsuranceUnderwritersCurrentYearClaimsAndClaimsAdjustmentExpense	302300000	USD
	us-gaap	Supplemental Information For Property Casualty Insurance Underwriters Prior Year Claims And Claims Adjustment Expense SupplementalInformationForPropertyCasualtyInsuranceUnderwritersPriorYearClaimsAndClaimsAdjustmentExpense	-25900000	USD
	us-gaap	Supplemental Information For Property Casualty Insurance Underwriters Prior Year Claims And Claims Adjustment Expense SupplementalInformationForPropertyCasualtyInsuranceUnderwritersPriorYearClaimsAndClaimsAdjustmentExpense	-14900000	USD
	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Incurred Claims1 LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseIncurredClaims1	984900000	USD
	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Incurred Claims1 LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseIncurredClaims1	287400000	USD
	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Claims Paid Current Year1 LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidCurrentYear1	162100000	USD
	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Claims Paid Current Year1 LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidCurrentYear1	43500000	USD
	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Claims Paid Prior Years1 LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidPriorYears1	543900000	USD
	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Claims Paid Prior Years1 LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseClaimsPaidPriorYears1	173400000	USD
	us-gaap	Payments For Losses And Loss Adjustment Expense PaymentsForLossesAndLossAdjustmentExpense	706000000.0	USD
	us-gaap	Payments For Losses And Loss Adjustment Expense PaymentsForLossesAndLossAdjustmentExpense	216900000	USD
	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Foreign Currency Translation Gain Loss LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseForeignCurrencyTranslationGainLoss	19500000	USD
	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Foreign Currency Translation Gain Loss LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseForeignCurrencyTranslationGainLoss	3400000	USD
	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Business Acquisitions LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseBusinessAcquisitions	2467800000	USD
	us-gaap	Supplemental Information For Property Casualty Insurance Underwriters Prior Year Claims And Claims Adjustment Expense SupplementalInformationForPropertyCasualtyInsuranceUnderwritersPriorYearClaimsAndClaimsAdjustmentExpense	-14900000	USD
	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Business Acquisitions LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseBusinessAcquisitions	0	USD
CY2021Q3	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Net LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseNet	4016900000	USD
CY2020Q3	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Net LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseNet	1166600000	USD
CY2021Q3	us-gaap	Reinsurance Recoverables On Paid And Unpaid Losses ReinsuranceRecoverablesOnPaidAndUnpaidLosses	843500000	USD
CY2020Q3	us-gaap	Reinsurance Recoverables On Paid And Unpaid Losses ReinsuranceRecoverablesOnPaidAndUnpaidLosses	13600000	USD
CY2021Q3	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Opening Balance Adjustments LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseOpeningBalanceAdjustments	-1900000	USD
CY2020Q3	us-gaap	Liability For Unpaid Claims And Claims Adjustment Expense Opening Balance Adjustments LiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseOpeningBalanceAdjustments	-6000000.0	USD
CY2021Q3	us-gaap	Liability For Claims And Claims Adjustment Expense LiabilityForClaimsAndClaimsAdjustmentExpense	4862300000	USD
CY2020Q3	us-gaap	Liability For Claims And Claims Adjustment Expense LiabilityForClaimsAndClaimsAdjustmentExpense	1186200000	USD
CY2021Q3	us-gaap	Supplemental Information For Property Casualty Insurance Underwriters Prior Year Claims And Claims Adjustment Expense SupplementalInformationForPropertyCasualtyInsuranceUnderwritersPriorYearClaimsAndClaimsAdjustmentExpense	-16200000	USD
CY2021Q3	spnt	Prior Year Claims And Claims Adjustment Expense Increase Decrease Due To Change In Loss Reserve Development PriorYearClaimsAndClaimsAdjustmentExpenseIncreaseDecreaseDueToChangeInLossReserveDevelopment	-15000000	USD
	us-gaap	Supplemental Information For Property Casualty Insurance Underwriters Prior Year Claims And Claims Adjustment Expense SupplementalInformationForPropertyCasualtyInsuranceUnderwritersPriorYearClaimsAndClaimsAdjustmentExpense	-25900000	USD
	spnt	Prior Year Claims And Claims Adjustment Expense Increase Decrease Due To Change In Loss Reserve Development PriorYearClaimsAndClaimsAdjustmentExpenseIncreaseDecreaseDueToChangeInLossReserveDevelopment	-27000000	USD
CY2020Q3	us-gaap	Supplemental Information For Property Casualty Insurance Underwriters Prior Year Claims And Claims Adjustment Expense SupplementalInformationForPropertyCasualtyInsuranceUnderwritersPriorYearClaimsAndClaimsAdjustmentExpense	-15100000	USD
CY2020Q3	us-gaap	Supplemental Information For Property Casualty Insurance Underwriters Prior Year Claims And Claims Adjustment Expense SupplementalInformationForPropertyCasualtyInsuranceUnderwritersPriorYearClaimsAndClaimsAdjustmentExpense	-15100000	USD
CY2020Q3	spnt	Prior Year Claims And Claims Adjustment Expense Increase Decrease Due To Change In Reserve Estimates PriorYearClaimsAndClaimsAdjustmentExpenseIncreaseDecreaseDueToChangeInReserveEstimates	-20300000	USD
CY2020Q3	spnt	Prior Year Claims And Claims Adjustment Expense Increase Decrease Due To Change In Premium Earnings Estimates PriorYearClaimsAndClaimsAdjustmentExpenseIncreaseDecreaseDueToChangeInPremiumEarningsEstimates	5200000	USD
	us-gaap	Supplemental Information For Property Casualty Insurance Underwriters Prior Year Claims And Claims Adjustment Expense SupplementalInformationForPropertyCasualtyInsuranceUnderwritersPriorYearClaimsAndClaimsAdjustmentExpense	-14900000	USD
	spnt	Prior Year Claims And Claims Adjustment Expense Increase Decrease Due To Change In Reserve Estimates PriorYearClaimsAndClaimsAdjustmentExpenseIncreaseDecreaseDueToChangeInReserveEstimates	-30400000	USD
	spnt	Prior Year Claims And Claims Adjustment Expense Increase Decrease Due To Change In Premium Earnings Estimates PriorYearClaimsAndClaimsAdjustmentExpenseIncreaseDecreaseDueToChangeInPremiumEarningsEstimates	15500000	USD
	spnt	Underwriting Income Loss Increase Decrease UnderwritingIncomeLossIncreaseDecrease	3400000	USD
CY2021Q3	us-gaap	Ceded Premiums Written CededPremiumsWritten	162400000	USD
	us-gaap	Ceded Premiums Written CededPremiumsWritten	322400000	USD
CY2020Q3	us-gaap	Ceded Premiums Written CededPremiumsWritten	8300000	USD
	us-gaap	Ceded Premiums Written CededPremiumsWritten	29200000	USD
CY2021Q3	us-gaap	Reinsurance Recoverables On Paid And Unpaid Losses ReinsuranceRecoverablesOnPaidAndUnpaidLosses	843500000	USD
CY2020Q4	us-gaap	Reinsurance Recoverables On Paid And Unpaid Losses ReinsuranceRecoverablesOnPaidAndUnpaidLosses	14400000	USD
CY2021Q3	us-gaap	Premiums Receivable At Carrying Value PremiumsReceivableAtCarryingValue	1621400000	USD
CY2020Q4	us-gaap	Premiums Receivable At Carrying Value PremiumsReceivableAtCarryingValue	441900000	USD
CY2021Q3	us-gaap	Reinsurance Recoverables On Paid And Unpaid Losses ReinsuranceRecoverablesOnPaidAndUnpaidLosses	843500000	USD
CY2020Q4	us-gaap	Reinsurance Recoverables On Paid And Unpaid Losses ReinsuranceRecoverablesOnPaidAndUnpaidLosses	14400000	USD
CY2021Q3	us-gaap	Accounts Receivable Net AccountsReceivableNet	17600000	USD
CY2020Q4	us-gaap	Accounts Receivable Net AccountsReceivableNet	0	USD
CY2021Q3	spnt	Assets Within Scope Of Credit Losses AssetsWithinScopeOfCreditLosses	2482500000	USD
CY2020Q4	spnt	Assets Within Scope Of Credit Losses AssetsWithinScopeOfCreditLosses	456300000	USD
CY2021Q3	spnt	Assets Within Scope Of Credit Losses Allowance For Credit Loss AssetsWithinScopeOfCreditLossesAllowanceForCreditLoss	15900000	USD
CY2020Q4	spnt	Assets Within Scope Of Credit Losses Allowance For Credit Loss AssetsWithinScopeOfCreditLossesAllowanceForCreditLoss	600000	USD
CY2021Q3	us-gaap	Provision For Other Credit Losses ProvisionForOtherCreditLosses	-300000	USD
	us-gaap	Provision For Other Credit Losses ProvisionForOtherCreditLosses	15300000	USD
CY2020Q3	us-gaap	Provision For Other Credit Losses ProvisionForOtherCreditLosses	300000	USD
	us-gaap	Provision For Other Credit Losses ProvisionForOtherCreditLosses	500000	USD
CY2020Q4	us-gaap	Deposit Contracts Liabilities DepositContractsLiabilities	153000000.0	USD
CY2019Q4	us-gaap	Deposit Contracts Liabilities DepositContractsLiabilities	172300000	USD
	spnt	Deposit Contracts Liabilities Consideration Received DepositContractsLiabilitiesConsiderationReceived	400000	USD
CY2020	spnt	Deposit Contracts Liabilities Consideration Received DepositContractsLiabilitiesConsiderationReceived	500000	USD
	spnt	Deposit Contracts Liabilities Consideration Receivable DepositContractsLiabilitiesConsiderationReceivable	6900000	USD
CY2020	spnt	Deposit Contracts Liabilities Consideration Receivable DepositContractsLiabilitiesConsiderationReceivable	0	USD
	spnt	Deposit Contracts Liabilities Net Investment Expense Allocation DepositContractsLiabilitiesNetInvestmentExpenseAllocation	3900000	USD
CY2020	spnt	Deposit Contracts Liabilities Net Investment Expense Allocation DepositContractsLiabilitiesNetInvestmentExpenseAllocation	900000	USD
	spnt	Deposit Contracts Liabilities Payments DepositContractsLiabilitiesPayments	9800000	USD
CY2020	spnt	Deposit Contracts Liabilities Payments DepositContractsLiabilitiesPayments	20800000	USD
	spnt	Deposit Contracts Liabilities Foreign Currency Translation Gain Loss DepositContractsLiabilitiesForeignCurrencyTranslationGainLoss	400000	USD
CY2020	spnt	Deposit Contracts Liabilities Foreign Currency Translation Gain Loss DepositContractsLiabilitiesForeignCurrencyTranslationGainLoss	-100000	USD
CY2021Q3	us-gaap	Deposit Contracts Liabilities DepositContractsLiabilities	154000000.0	USD
CY2020Q4	us-gaap	Deposit Contracts Liabilities DepositContractsLiabilities	153000000.0	USD
CY2021Q3	us-gaap	Long Term Debt LongTermDebt	827000000.0	USD
CY2020Q4	us-gaap	Long Term Debt LongTermDebt	114300000	USD
CY2021Q3	us-gaap	Interest Expense Debt InterestExpenseDebt	9700000	USD
	us-gaap	Interest Expense Debt InterestExpenseDebt	24400000	USD
CY2020Q3	us-gaap	Interest Expense Debt InterestExpenseDebt	2100000	USD
	us-gaap	Interest Expense Debt InterestExpenseDebt	6200000	USD
CY2021Q3	us-gaap	Investment Income Investment Expense InvestmentIncomeInvestmentExpense	7800000	USD
CY2020Q3	us-gaap	Investment Income Investment Expense InvestmentIncomeInvestmentExpense	300000	USD
	us-gaap	Investment Income Investment Expense InvestmentIncomeInvestmentExpense	12300000	USD
	us-gaap	Investment Income Investment Expense InvestmentIncomeInvestmentExpense	1100000	USD
CY2021Q3	spnt	Net Investment Income Loss And Gain Loss On Investments NetInvestmentIncomeLossAndGainLossOnInvestments	199800000	USD
CY2020Q3	spnt	Net Investment Income Loss And Gain Loss On Investments NetInvestmentIncomeLossAndGainLossOnInvestments	122000000.0	USD
	spnt	Net Investment Income Loss And Gain Loss On Investments NetInvestmentIncomeLossAndGainLossOnInvestments	463700000	USD
	spnt	Net Investment Income Loss And Gain Loss On Investments NetInvestmentIncomeLossAndGainLossOnInvestments	74100000	USD
CY2021Q3	spnt	Realized Investment Gains RealizedInvestmentGains	8300000	USD
CY2020Q3	spnt	Realized Investment Gains RealizedInvestmentGains	10500000	USD
	spnt	Realized Investment Gains RealizedInvestmentGains	29400000	USD
	spnt	Realized Investment Gains RealizedInvestmentGains	58200000	USD
CY2021Q3	spnt	Realized Investment Losses RealizedInvestmentLosses	2600000	USD
CY2020Q3	spnt	Realized Investment Losses RealizedInvestmentLosses	7000000.0	USD
	spnt	Realized Investment Losses RealizedInvestmentLosses	6400000	USD
	spnt	Realized Investment Losses RealizedInvestmentLosses	13800000	USD
CY2021Q3	us-gaap	Realized Investment Gains Losses RealizedInvestmentGainsLosses	5700000	USD
CY2020Q3	us-gaap	Realized Investment Gains Losses RealizedInvestmentGainsLosses	3500000	USD
	us-gaap	Realized Investment Gains Losses RealizedInvestmentGainsLosses	23000000.0	USD
	us-gaap	Realized Investment Gains Losses RealizedInvestmentGainsLosses	44400000	USD
CY2021Q3	us-gaap	Unrealized Gain Loss On Investments UnrealizedGainLossOnInvestments	-17400000	USD
CY2020Q3	us-gaap	Unrealized Gain Loss On Investments UnrealizedGainLossOnInvestments	3500000	USD
	us-gaap	Unrealized Gain Loss On Investments UnrealizedGainLossOnInvestments	20700000	USD
	us-gaap	Unrealized Gain Loss On Investments UnrealizedGainLossOnInvestments	10200000	USD
CY2021Q3	us-gaap	Gain Loss On Investments GainLossOnInvestments	-11700000	USD
CY2020Q3	us-gaap	Gain Loss On Investments GainLossOnInvestments	7000000.0	USD
	us-gaap	Gain Loss On Investments GainLossOnInvestments	43700000	USD
	us-gaap	Gain Loss On Investments GainLossOnInvestments	54600000	USD
CY2021Q3	spnt	Realized Investment Gains Losses Foreign Currency RealizedInvestmentGainsLossesForeignCurrency	2600000	USD
	spnt	Realized Investment Gains Losses Foreign Currency RealizedInvestmentGainsLossesForeignCurrency	1100000	USD
CY2020Q3	spnt	Realized Investment Gains Losses Foreign Currency RealizedInvestmentGainsLossesForeignCurrency	0	USD
	spnt	Realized Investment Gains Losses Foreign Currency RealizedInvestmentGainsLossesForeignCurrency	1300000	USD
CY2021Q3	spnt	Unrealized Gain Loss On Investments Foreign Currency UnrealizedGainLossOnInvestmentsForeignCurrency	-11200000	USD
	spnt	Unrealized Gain Loss On Investments Foreign Currency UnrealizedGainLossOnInvestmentsForeignCurrency	-17400000	USD
CY2020Q3	spnt	Unrealized Gain Loss On Investments Foreign Currency UnrealizedGainLossOnInvestmentsForeignCurrency	5300000	USD
	spnt	Unrealized Gain Loss On Investments Foreign Currency UnrealizedGainLossOnInvestmentsForeignCurrency	-4000000.0	USD
CY2021Q3	us-gaap	Debt Securities Trading Realized Gain Loss DebtSecuritiesTradingRealizedGainLoss	5300000	USD
CY2020Q3	us-gaap	Debt Securities Trading Realized Gain Loss DebtSecuritiesTradingRealizedGainLoss	3500000	USD
	us-gaap	Debt Securities Trading Realized Gain Loss DebtSecuritiesTradingRealizedGainLoss	13400000	USD
	us-gaap	Debt Securities Trading Realized Gain Loss DebtSecuritiesTradingRealizedGainLoss	42600000	USD
CY2021Q3	spnt	Gain Loss On Sale Of Other Short Term Investments GainLossOnSaleOfOtherShortTermInvestments	-1600000	USD
CY2020Q3	spnt	Gain Loss On Sale Of Other Short Term Investments GainLossOnSaleOfOtherShortTermInvestments	0	USD
	spnt	Gain Loss On Sale Of Other Short Term Investments GainLossOnSaleOfOtherShortTermInvestments	-1800000	USD
	spnt	Gain Loss On Sale Of Other Short Term Investments GainLossOnSaleOfOtherShortTermInvestments	0	USD
CY2021Q3	us-gaap	Equity Securities Fv Ni Realized Gain Loss EquitySecuritiesFvNiRealizedGainLoss	0	USD
CY2020Q3	us-gaap	Equity Securities Fv Ni Realized Gain Loss EquitySecuritiesFvNiRealizedGainLoss	0	USD
	us-gaap	Equity Securities Fv Ni Realized Gain Loss EquitySecuritiesFvNiRealizedGainLoss	-100000	USD
	us-gaap	Equity Securities Fv Ni Realized Gain Loss EquitySecuritiesFvNiRealizedGainLoss	0	USD
CY2021Q3	spnt	Gain Loss On Sale Of Other Long Term Investments GainLossOnSaleOfOtherLongTermInvestments	1200000	USD
CY2020Q3	spnt	Gain Loss On Sale Of Other Long Term Investments GainLossOnSaleOfOtherLongTermInvestments	0	USD
	spnt	Gain Loss On Sale Of Other Long Term Investments GainLossOnSaleOfOtherLongTermInvestments	11800000	USD
	spnt	Gain Loss On Sale Of Other Long Term Investments GainLossOnSaleOfOtherLongTermInvestments	0	USD
CY2021Q3	spnt	Cash And Cash Equivalents Realized Gain Loss CashAndCashEquivalentsRealizedGainLoss	800000	USD
CY2020Q3	spnt	Cash And Cash Equivalents Realized Gain Loss CashAndCashEquivalentsRealizedGainLoss	0	USD
	spnt	Cash And Cash Equivalents Realized Gain Loss CashAndCashEquivalentsRealizedGainLoss	-300000	USD
	spnt	Cash And Cash Equivalents Realized Gain Loss CashAndCashEquivalentsRealizedGainLoss	1800000	USD
CY2021Q3	us-gaap	Realized Investment Gains Losses RealizedInvestmentGainsLosses	5700000	USD
CY2020Q3	us-gaap	Realized Investment Gains Losses RealizedInvestmentGainsLosses	3500000	USD
	us-gaap	Realized Investment Gains Losses RealizedInvestmentGainsLosses	23000000.0	USD
	us-gaap	Realized Investment Gains Losses RealizedInvestmentGainsLosses	44400000	USD
CY2021Q3	us-gaap	Debt Securities Trading Unrealized Gain Loss DebtSecuritiesTradingUnrealizedGainLoss	-15200000	USD
CY2020Q3	us-gaap	Debt Securities Trading Unrealized Gain Loss DebtSecuritiesTradingUnrealizedGainLoss	-1800000	USD
	us-gaap	Debt Securities Trading Unrealized Gain Loss DebtSecuritiesTradingUnrealizedGainLoss	-23500000	USD
	us-gaap	Debt Securities Trading Unrealized Gain Loss DebtSecuritiesTradingUnrealizedGainLoss	14200000	USD
CY2021Q3	spnt	Other Short Term Investments Unrealized Gain Loss OtherShortTermInvestmentsUnrealizedGainLoss	-6800000	USD
CY2020Q3	spnt	Other Short Term Investments Unrealized Gain Loss OtherShortTermInvestmentsUnrealizedGainLoss	0	USD
	spnt	Other Short Term Investments Unrealized Gain Loss OtherShortTermInvestmentsUnrealizedGainLoss	-10700000	USD
	spnt	Other Short Term Investments Unrealized Gain Loss OtherShortTermInvestmentsUnrealizedGainLoss	0	USD
CY2021Q1	spnt	Number Of Operating Subsidiaries NumberOfOperatingSubsidiaries	1	subsidiary
CY2021Q3	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	-1400000	USD
CY2020Q3	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	0	USD
	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	-1400000	USD
	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	0	USD
CY2021Q3	spnt	Other Long Term Investments Unrealized Gain Loss OtherLongTermInvestmentsUnrealizedGainLoss	4900000	USD
CY2020Q3	spnt	Other Long Term Investments Unrealized Gain Loss OtherLongTermInvestmentsUnrealizedGainLoss	0	USD
	spnt	Other Long Term Investments Unrealized Gain Loss OtherLongTermInvestmentsUnrealizedGainLoss	53500000	USD
	spnt	Other Long Term Investments Unrealized Gain Loss OtherLongTermInvestmentsUnrealizedGainLoss	0	USD
CY2021Q3	spnt	Cash And Cash Equivalents Unrealized Gain Loss CashAndCashEquivalentsUnrealizedGainLoss	1100000	USD
CY2020Q3	spnt	Cash And Cash Equivalents Unrealized Gain Loss CashAndCashEquivalentsUnrealizedGainLoss	5300000	USD
	spnt	Cash And Cash Equivalents Unrealized Gain Loss CashAndCashEquivalentsUnrealizedGainLoss	2800000	USD
	spnt	Cash And Cash Equivalents Unrealized Gain Loss CashAndCashEquivalentsUnrealizedGainLoss	-4000000.0	USD
CY2021Q3	us-gaap	Unrealized Gain Loss On Investments UnrealizedGainLossOnInvestments	-17400000	USD
CY2020Q3	us-gaap	Unrealized Gain Loss On Investments UnrealizedGainLossOnInvestments	3500000	USD
	us-gaap	Unrealized Gain Loss On Investments UnrealizedGainLossOnInvestments	20700000	USD
	us-gaap	Unrealized Gain Loss On Investments UnrealizedGainLossOnInvestments	10200000	USD
CY2021Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-13000000.0	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	6400000	USD
CY2020Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	700000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	4400000	USD
CY2021Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-60400000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	161500000	USD
CY2020Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	69400000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	13500000	USD
CY2021Q3	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.215
	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.040
	us-gaap	Tax Cuts And Jobs Act Of2017 Income Tax Expense Benefit TaxCutsAndJobsActOf2017IncomeTaxExpenseBenefit	0	USD
CY2020	us-gaap	Tax Cuts And Jobs Act Of2017 Income Tax Expense Benefit TaxCutsAndJobsActOf2017IncomeTaxExpenseBenefit	0	USD
CY2021Q3	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	42000000	USD
CY2021Q3	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	11800000	USD
CY2021Q3	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	3200000	USD
CY2021Q3	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	2500000	USD
CY2021Q3	spnt	Unrecognized Tax Benefits That Would Not Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldNotImpactEffectiveTaxRate	700000	USD
	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	17000000	USD
CY2020Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	95582733	shares
CY2019Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	94225498	shares
	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	220000	shares
	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	0	shares
	us-gaap	Stock Issued During Period Shares Acquisitions StockIssuedDuringPeriodSharesAcquisitions	58331196	shares
	us-gaap	Stock Issued During Period Shares Acquisitions StockIssuedDuringPeriodSharesAcquisitions	0	shares
	spnt	Stock Issued During Period Shares Related Party StockIssuedDuringPeriodSharesRelatedParty	6093842	shares
	spnt	Stock Issued During Period Shares Related Party StockIssuedDuringPeriodSharesRelatedParty	0	shares
CY2021Q3	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	161949037	shares
CY2020Q3	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	95314893	shares
CY2021Q3	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	300000000	shares
CY2021Q3	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.10
CY2021Q3	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	7700000	USD
CY2020Q3	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	1500000	USD
	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	4700000	USD
CY2021Q3	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	45400000	USD
CY2020Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	14200000	USD
	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P2Y7M6D
CY2020	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P1Y10M24D
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	8255810	shares
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	13.45
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	2772215	shares
	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	10.69
	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	220000	shares
	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	10.00
CY2021Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	10808025	shares
CY2021Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	12.81
CY2021Q3	us-gaap	Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Number Of Outstanding Options ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions	10808025	shares
CY2021Q3	us-gaap	Sharebased Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Outstanding Options Weighted Average Exercise Price Beginning Balance1 SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1	12.81
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CY2021Q3	us-gaap	Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Number Of Exercisable Options ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions	9819663	shares
CY2021Q3	us-gaap	Sharebased Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Exercisable Options Weighted Average Exercise Price1 SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1	12.87
CY2021Q2	us-gaap	Minority Interest MinorityInterest	3300000	USD
CY2020Q2	us-gaap	Minority Interest MinorityInterest	0	USD
CY2020Q4	us-gaap	Minority Interest MinorityInterest	1400000	USD
CY2019Q4	us-gaap	Minority Interest MinorityInterest	0	USD
CY2021Q3	us-gaap	Noncontrolling Interest Increase From Business Combination NoncontrollingInterestIncreaseFromBusinessCombination	0	USD
CY2020Q3	us-gaap	Noncontrolling Interest Increase From Business Combination NoncontrollingInterestIncreaseFromBusinessCombination	0	USD
	us-gaap	Noncontrolling Interest Increase From Business Combination NoncontrollingInterestIncreaseFromBusinessCombination	300000	USD
	us-gaap	Noncontrolling Interest Increase From Business Combination NoncontrollingInterestIncreaseFromBusinessCombination	0	USD
CY2021Q3	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-3400000	USD
CY2020Q3	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	0	USD
	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-1800000	USD
	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	0	USD
CY2021Q3	spnt	Noncontrolling Interest Increase From Contributions NoncontrollingInterestIncreaseFromContributions	100000	USD
CY2020Q3	spnt	Noncontrolling Interest Increase From Contributions NoncontrollingInterestIncreaseFromContributions	1000000.0	USD
	spnt	Noncontrolling Interest Increase From Contributions NoncontrollingInterestIncreaseFromContributions	100000	USD
	spnt	Noncontrolling Interest Increase From Contributions NoncontrollingInterestIncreaseFromContributions	1000000.0	USD
CY2021Q3	us-gaap	Minority Interest MinorityInterest	0	USD
CY2020Q3	us-gaap	Minority Interest MinorityInterest	1000000.0	USD
CY2021Q3	us-gaap	Minority Interest MinorityInterest	0	USD
CY2020Q3	us-gaap	Minority Interest MinorityInterest	1000000.0	USD
CY2021Q3	spnt	Variable Interest Entity Reporting Entity Involvement Maximum Loss Exposure On Balance Sheet Amount VariableInterestEntityReportingEntityInvolvementMaximumLossExposureOnBalanceSheetAmount	216600000	USD
CY2021Q3	spnt	Variable Interest Entity Reporting Entity Involvement Maximum Loss Exposure Off Balance Sheet Amount VariableInterestEntityReportingEntityInvolvementMaximumLossExposureOffBalanceSheetAmount	2200000	USD
CY2021Q3	us-gaap	Variable Interest Entity Entity Maximum Loss Exposure Amount VariableInterestEntityEntityMaximumLossExposureAmount	218800000	USD
CY2021Q3	us-gaap	Other Long Term Investments OtherLongTermInvestments	454500000	USD
CY2020Q4	us-gaap	Other Long Term Investments OtherLongTermInvestments	4000000.0	USD
CY2021Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	159225772	shares
CY2020Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	92613393	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	145095270	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	92466813	shares
CY2021Q3	us-gaap	Incremental Common Shares Attributable To Call Options And Warrants IncrementalCommonSharesAttributableToCallOptionsAndWarrants	0	shares
CY2020Q3	us-gaap	Incremental Common Shares Attributable To Call Options And Warrants IncrementalCommonSharesAttributableToCallOptionsAndWarrants	0	shares
	us-gaap	Incremental Common Shares Attributable To Call Options And Warrants IncrementalCommonSharesAttributableToCallOptionsAndWarrants	38525	shares
	us-gaap	Incremental Common Shares Attributable To Call Options And Warrants IncrementalCommonSharesAttributableToCallOptionsAndWarrants	0	shares
CY2021Q3	spnt	Incremental Common Shares Attributable To Financial Instruments Subject To Mandatory Redemption IncrementalCommonSharesAttributableToFinancialInstrumentsSubjectToMandatoryRedemption	1015116	shares
CY2020Q3	spnt	Incremental Common Shares Attributable To Financial Instruments Subject To Mandatory Redemption IncrementalCommonSharesAttributableToFinancialInstrumentsSubjectToMandatoryRedemption	0	shares
	spnt	Incremental Common Shares Attributable To Financial Instruments Subject To Mandatory Redemption IncrementalCommonSharesAttributableToFinancialInstrumentsSubjectToMandatoryRedemption	1015116	shares
	spnt	Incremental Common Shares Attributable To Financial Instruments Subject To Mandatory Redemption IncrementalCommonSharesAttributableToFinancialInstrumentsSubjectToMandatoryRedemption	0	shares
CY2021Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	160240888	shares
CY2020Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	92969646	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	147597964	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	92877674	shares
CY2021Q3	us-gaap	Undistributed Earnings UndistributedEarnings	-48000000.0	USD
CY2020Q3	us-gaap	Undistributed Earnings UndistributedEarnings	68700000	USD
	us-gaap	Undistributed Earnings UndistributedEarnings	147400000	USD
	us-gaap	Undistributed Earnings UndistributedEarnings	9100000	USD
CY2021Q3	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	0	USD
CY2020Q3	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	500000	USD
	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	11000000.0	USD
	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	0	USD
CY2021Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-48000000.0	USD
CY2020Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	68200000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	136400000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	9100000	USD
CY2021Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.30
CY2020Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.74
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.94
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.10
CY2021Q3	us-gaap	Undistributed Earnings Diluted UndistributedEarningsDiluted	-48000000.0	USD
CY2020Q3	us-gaap	Undistributed Earnings Diluted UndistributedEarningsDiluted	68700000	USD
	us-gaap	Undistributed Earnings Diluted UndistributedEarningsDiluted	147400000	USD
	us-gaap	Undistributed Earnings Diluted UndistributedEarningsDiluted	9100000	USD
CY2021Q3	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Diluted UndistributedEarningsLossAllocatedToParticipatingSecuritiesDiluted	0	USD
CY2020Q3	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Diluted UndistributedEarningsLossAllocatedToParticipatingSecuritiesDiluted	500000	USD
	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Diluted UndistributedEarningsLossAllocatedToParticipatingSecuritiesDiluted	2200000	USD
	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Diluted UndistributedEarningsLossAllocatedToParticipatingSecuritiesDiluted	0	USD
CY2021Q3	spnt	Change In Carrying Value Of Financial Instruments Subject To Mandatory Redemption ChangeInCarryingValueOfFinancialInstrumentsSubjectToMandatoryRedemption	7200000	USD
CY2020Q3	spnt	Change In Carrying Value Of Financial Instruments Subject To Mandatory Redemption ChangeInCarryingValueOfFinancialInstrumentsSubjectToMandatoryRedemption	0	USD
	spnt	Change In Carrying Value Of Financial Instruments Subject To Mandatory Redemption ChangeInCarryingValueOfFinancialInstrumentsSubjectToMandatoryRedemption	9600000	USD
	spnt	Change In Carrying Value Of Financial Instruments Subject To Mandatory Redemption ChangeInCarryingValueOfFinancialInstrumentsSubjectToMandatoryRedemption	0	USD
CY2021Q3	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	-55200000	USD
CY2020Q3	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	68200000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	135600000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	9100000	USD
CY2021Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.34
CY2020Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.73
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.92
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.10
CY2021Q3	us-gaap	Due From Affiliates DueFromAffiliates	65300000	USD
CY2021Q3	us-gaap	Due To Affiliate Current And Noncurrent DueToAffiliateCurrentAndNoncurrent	0	USD
CY2021Q3	us-gaap	Related Party Transaction Expenses From Transactions With Related Party RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty	55600000	USD
CY2020Q3	us-gaap	Related Party Transaction Expenses From Transactions With Related Party RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty	20400000	USD
	us-gaap	Related Party Transaction Expenses From Transactions With Related Party RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty	113800000	USD
	us-gaap	Related Party Transaction Expenses From Transactions With Related Party RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty	27500000	USD
CY2021Q3	us-gaap	Lease Cost LeaseCost	3100000	USD
	us-gaap	Lease Cost LeaseCost	7600000	USD
CY2020Q3	us-gaap	Lease Cost LeaseCost	200000	USD
	us-gaap	Lease Cost LeaseCost	700000	USD
CY2021Q3	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	14600000	USD
CY2020Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	800000	USD
CY2021Q3	us-gaap	Operating Lease Liability OperatingLeaseLiability	20100000	USD
CY2020Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	800000	USD
CY2021Q3	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	14600000	USD
CY2020Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	800000	USD
CY2021Q3	us-gaap	Operating Lease Liability OperatingLeaseLiability	20100000	USD
CY2020Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	800000	USD
CY2021Q3	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P3Y
CY2020Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P1Y
CY2021Q3	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.033
CY2020Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.070
CY2021Q3	us-gaap	Lessee Operating Lease Liability Payments Remainder Of Fiscal Year LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear	2500000	USD
CY2021Q3	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	9100000	USD
CY2021Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	5800000	USD
CY2021Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	2400000	USD
CY2021Q3	spnt	Lessee Operating Lease Liability To Be Paid Due After Year Three LesseeOperatingLeaseLiabilityToBePaidDueAfterYearThree	1300000	USD
CY2021Q3	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	21100000	USD
CY2021Q3	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	1000000.0	USD
CY2021Q3	us-gaap	Operating Lease Liability OperatingLeaseLiability	20100000	USD
	spnt	Lessee Operating Lease Lease Not Yet Commenced Number Of Contracts LesseeOperatingLeaseLeaseNotYetCommencedNumberOfContracts	1	contract
CY2021Q3	spnt	Lessee Operating Lease Lease Not Yet Commenced Undiscounted Amount LesseeOperatingLeaseLeaseNotYetCommencedUndiscountedAmount	11800000	USD

Files In Submission

Name	View Source	Status
0001576018-21-000183-index-headers.html	Edgar Link	pending
0001576018-21-000183-index.html	Edgar Link	pending
0001576018-21-000183.txt	Edgar Link	pending
0001576018-21-000183-xbrl.zip	Edgar Link	pending
exhibit101amendedrestateds.htm	Edgar Link	pending
exhibit102lpta-ccooctober2.htm	Edgar Link	pending
exhibit311093021.htm	Edgar Link	pending
exhibit312093021.htm	Edgar Link	pending
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spnt-20210930_cal.xml	Edgar Link	unprocessable
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spnt-20210930_htm.xml	Edgar Link	completed
spnt-20210930_lab.xml	Edgar Link	unprocessable
spnt-20210930_pre.xml	Edgar Link	unprocessable

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$SPNT
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2021 Q3 Form 10-Q Financial Statement

#000157601821000183 Filed on November 03, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$SPNT SiriusPoint Ltd Stock $spnt

2021 Q3 Form 10-Q Financial Statement

#000157601821000183 Filed on November 03, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$SPNT
SiriusPoint Ltd Stock $spnt