XML 114 R40.htm IDEA: XBRL DOCUMENT v3.25.1

Investments - Fixed Maturities Securities and Short-term Investments (Details) - USD ($) $ in Millions	Mar. 31, 2025	Dec. 31, 2024
Amortized Cost
Amortized Cost	$ 212.9	$ 208.3
Amortized Cost	175.4	167.6
Amortized Cost	388.3	375.9
Gross Unrealized Gains
Gross Unrealized Gains	1.6	0.9
Gross Unrealized Gains	0.0	0.0
Gross Unrealized Gains	1.6	0.9
Gross Unrealized Losses
Gross Unrealized Losses	(2.3)	(3.5)
Gross Unrealized Losses	0.0	0.0
Gross Unrealized Losses	(2.3)	(3.5)
Fair Value
Fair Value	212.2	205.7
Fair Value	175.4	167.6
Total investments	387.6	373.3
U.S. government and agencies
Amortized Cost
Amortized Cost	29.3	24.8
Amortized Cost	129.2	118.5
Gross Unrealized Gains
Gross Unrealized Gains	0.1	0.0
Gross Unrealized Gains	0.0	0.0
Gross Unrealized Losses
Gross Unrealized Losses	(0.1)	(0.2)
Gross Unrealized Losses	0.0	0.0
Fair Value
Fair Value	29.3	24.6
Fair Value	129.2	118.5
States and other territories
Amortized Cost
Amortized Cost	10.5	11.2
Gross Unrealized Gains
Gross Unrealized Gains	0.0	0.0
Gross Unrealized Losses
Gross Unrealized Losses	(0.2)	(0.3)
Fair Value
Fair Value	10.3	10.9
Corporate securities
Amortized Cost
Amortized Cost	135.6	131.8
Amortized Cost	37.8	31.6
Gross Unrealized Gains
Gross Unrealized Gains	1.4	0.8
Gross Unrealized Gains	0.0	0.0
Gross Unrealized Losses
Gross Unrealized Losses	(0.5)	(1.1)
Gross Unrealized Losses	0.0	0.0
Fair Value
Fair Value	136.5	131.5
Fair Value	37.8	31.6
Foreign securities
Fair Value
Fair Value		0.0
Residential mortgage-backed securities
Amortized Cost
Amortized Cost	20.9	21.5
Gross Unrealized Gains
Gross Unrealized Gains	0.1	0.0
Gross Unrealized Losses
Gross Unrealized Losses	(1.2)	(1.5)
Fair Value
Fair Value	19.8	20.0
Commercial mortgage-backed securities
Amortized Cost
Amortized Cost	7.1	7.2
Gross Unrealized Gains
Gross Unrealized Gains	0.0	0.1
Gross Unrealized Losses
Gross Unrealized Losses	(0.3)	(0.4)
Fair Value
Fair Value	6.8	6.9
Asset backed securities
Amortized Cost
Amortized Cost	9.5	11.8
Gross Unrealized Gains
Gross Unrealized Gains	0.0	0.0
Gross Unrealized Losses
Gross Unrealized Losses	0.0	0.0
Fair Value
Fair Value	9.5	11.8
Commercial paper
Amortized Cost
Amortized Cost	8.4	17.5
Gross Unrealized Gains
Gross Unrealized Gains	0.0	0.0
Gross Unrealized Losses
Gross Unrealized Losses	0.0	0.0
Fair Value
Fair Value	$ 8.4	$ 17.5

X

- Definition

Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax, Current

+ References

No definition available.

+ Details

Name:	hippo_DebtSecuritiesAvailableForSaleAccumulatedGrossUnrealizedGainBeforeTaxCurrent
Namespace Prefix:	hippo_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax, Noncurrent

+ References

No definition available.

+ Details

Name:	hippo_DebtSecuritiesAvailableForSaleAccumulatedGrossUnrealizedGainBeforeTaxNoncurrent
Namespace Prefix:	hippo_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax, Current

+ References

No definition available.

+ Details

Name:	hippo_DebtSecuritiesAvailableForSaleAccumulatedGrossUnrealizedLossBeforeTaxCurrent
Namespace Prefix:	hippo_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax, Noncurrent

+ References

No definition available.

+ Details

Name:	hippo_DebtSecuritiesAvailableForSaleAccumulatedGrossUnrealizedLossBeforeTaxNoncurrent
Namespace Prefix:	hippo_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Debt Securities, Available-for-Sale, Unrealized Gain

+ References

No definition available.

+ Details

Name:	hippo_DebtSecuritiesAvailableForSaleUnrealizedGainAbstract
Namespace Prefix:	hippo_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Debt Securities, Available-for-Sale, Unrealized Loss

+ References

No definition available.

+ Details

Name:	hippo_DebtSecuritiesAvailableForSaleUnrealizedLossAbstract
Namespace Prefix:	hippo_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481800/320-10-50-2

+ Details

Name:	us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Amount, before tax, of unrealized loss in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481800/320-10-50-2

+ Details

Name:	us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- References

No definition available.

+ Details

Name:	us-gaap_AvailableForSaleSecuritiesAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amortized cost excluding accrued interest, after allowance for credit loss, of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 30
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479130/326-30-45-1

+ Details

Name:	us-gaap_DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestAfterAllowanceForCreditLoss
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Amortized cost excluding accrued interest, after allowance for credit loss, of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), classified as current.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 30
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479130/326-30-45-1

+ Details

Name:	us-gaap_DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestAfterAllowanceForCreditLossCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Amortized cost excluding accrued interest, after allowance for credit loss, of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), classified as noncurrent.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 30
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479130/326-30-45-1

+ Details

Name:	us-gaap_DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestAfterAllowanceForCreditLossNoncurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Amount excluding accrued interest, of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 30
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479130/326-30-45-1

+ Details

Name:	us-gaap_DebtSecuritiesAvailableForSaleExcludingAccruedInterest
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Amount excluding accrued interest, of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), classified as current.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 30
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479130/326-30-45-1

+ Details

Name:	us-gaap_DebtSecuritiesAvailableForSaleExcludingAccruedInterestCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Amount excluding accrued interest, of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), classified as noncurrent.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 30
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479130/326-30-45-1

+ Details

Name:	us-gaap_DebtSecuritiesAvailableForSaleExcludingAccruedInterestNoncurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- References

No definition available.

+ Details

Name:	us-gaap_DebtSecuritiesAvailableforsaleAmortizedCostAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_FinancialInstrumentAxis=us-gaap_USGovernmentCorporationsAndAgenciesSecuritiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancialInstrumentAxis=us-gaap_USStatesAndPoliticalSubdivisionsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancialInstrumentAxis=us-gaap_CorporateDebtSecuritiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancialInstrumentAxis=us-gaap_ForeignGovernmentDebtSecuritiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancialInstrumentAxis=us-gaap_ResidentialMortgageBackedSecuritiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancialInstrumentAxis=us-gaap_CommercialMortgageBackedSecuritiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancialInstrumentAxis=us-gaap_AssetBackedSecuritiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancialInstrumentAxis=us-gaap_CommercialPaperMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: