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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Represents costs to reimburse the ceding entities for catastrophe reinsurance costs.

No definition available.

Name:	hci_CostAllowance
Namespace Prefix:	hci_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Net amount payable to ceding entities under reinsurance contracts. The net amount includes written premiums assumed by the company, subsequent premium adjustment, commission payable and reinsurance payable for paid losses and loss adjustment expenses.

No definition available.

Name:	hci_NetPayableToCedingEntity
Namespace Prefix:	hci_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Net amount receivable from ceding entities under reinsurance contracts. The net amount includes written premiums assumed by the company, subsequent premium adjustment, commission payable and reinsurance payable for paid losses and loss adjustment expenses.

No definition available.

Name:	hci_NetReceivableFromCedingEntity
Namespace Prefix:	hci_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Amount, net of valuation allowance, recoverable under reinsurance contracts including premium paid under reinsurance contracts. Examples include, but are not limited to, settled and unsettled claims, incurred but not reported losses, loss adjustment expense, premium paid, policy benefits and policy reserves.

No definition available.

Name:	hci_NetReinsuranceRecoverables
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Number of reinsurers participating in the company's reinsurance program.

No definition available.

Name:	hci_NumberOfReinsurers
Namespace Prefix:	hci_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

Percentage of ceding commission on ceded premiums written.

No definition available.

Name:	hci_PercentageOfCedingCommissionOnCededPremiumsWritten
Namespace Prefix:	hci_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

Percentage of gross reinsurance recoverable major reinsurers

No definition available.

Name:	hci_PercentageOfGrossReinsuranceRecoverableMajorReinsurers
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Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

Percentage of profit commission equal to net profit.

No definition available.

Name:	hci_PercentageOfProfitCommissionEqualToNetProfit
Namespace Prefix:	hci_
Data Type:	dtr-types:percentItemType
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Represents a reduction recognized in ceded premiums related to reinsurance contracts with retrospective provisions.

No definition available.

Name:	hci_ReductionToCededPremiumResultingFromReinsuranceAdjustments
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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Carrying amount of liabilities as of the balance sheet date pertaining to amounts owed to the ceding insurer for paid losses and loss adjustment expenses under reinsurance contracts.

No definition available.

Name:	hci_ReinsurancePayableOnPaidLossesAndLossAdjustmentExpenses
Namespace Prefix:	hci_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- References

No definition available.

Name:	srt_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentLineItems
Namespace Prefix:	srt_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Amount of written premiums assumed from other entities.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 605
-Section 50
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Name:	us-gaap_AssumedPremiumsWritten
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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Amount of the reinsurer's funds held on its behalf by the ceding insurer, including funds held in trust, under reinsurance treaties or contracts with the assuming insurer as security for the payment of the obligations thereunder.

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Amount of assets classified as other.

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

The carrying amount as of the balance sheet date due the entity from (a) agents and insureds, (b) uncollected premiums and (c) others, net of the allowance for doubtful accounts.

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

Amount of reduction of provision for policy benefits and costs incurred for policies ceded.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Amount of expense (reversal of expense) for expected credit loss on reinsurance recoverable.

Name:	us-gaap_ReinsuranceRecoverableCreditLossExpenseReversal
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Amount of allowance for credit loss on reinsurance recoverable.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 50
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Name:	us-gaap_ReinsuranceRecoverablesAllowance
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Name:	srt_CounterpartyNameAxis=hci_UnitedInsuranceHoldingsCorporationMember
Namespace Prefix:
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Balance Type:
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Name:	srt_StatementGeographicalAxis=hci_NortheastRegionMember
Namespace Prefix:
Data Type:	na
Balance Type:
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Name:	srt_StatementGeographicalAxis=hci_SoutheastRegionMember
Namespace Prefix:
Data Type:	na
Balance Type:
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Name:	us-gaap_ReinsurancePolicyTypeAxis=hci_ReinsuranceMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_CededCreditRiskAxis=hci_FiftyFiveReinsurersMember
Namespace Prefix:
Data Type:	na
Balance Type:
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Name:	us-gaap_ConcentrationRiskByBenchmarkAxis=us-gaap_ReinsuranceRecoverableMember
Namespace Prefix:
Data Type:	na
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