Commitment and contingencies.

No definition available.

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Namespace Prefix:	hci_
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- Definition

Amount of proposed adjustment before penalty and interest

+ References

No definition available.

+ Details

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Namespace Prefix:	hci_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The description of loss contingency related to disallowance of the premium tax credit.

+ References

No definition available.

+ Details

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Data Type:	xbrli:stringItemType
Balance Type:	na
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- Definition

Represents the number of limited partnership interests that the company still has unexpired capital commitment.

+ References

No definition available.

+ Details

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

- Definition

Amount of proposed premium tax adjustment with interest.

+ References

No definition available.

+ Details

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

- Definition

Amount of contractual obligation due in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

No definition available.

+ Details

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

- Definition

Amount of contractual obligation due in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

No definition available.

+ Details

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

- Definition

The amount of unfunded commitments for which the entity is obligated, to those certain investments for which net asset value per share is calculated (including by unit, membership interest, or other equity (ownership interest) unit measure) (alternative investments).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 6A
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=66048111&loc=SL6742756-110258

+ Details

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

- Definition

Amount of gain (loss) recognized in settlement of litigation and insurance claims. Excludes claims within an insurance entity's normal claims settlement process.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14326-108349

+ Details

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

- Definition

Amount of judgment or settlement awarded to (against) the entity in respect of litigation.

+ References

No definition available.

+ Details

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

- Definition

Cash received for the settlement of litigation during the current period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 25
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3536-108585

+ Details

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

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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Namespace Prefix:
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Commitments and Contingencies - Additional Information (Detail) $ in Thousands		1 Months Ended	9 Months Ended
	Sep. 10, 2013 USD ($)	Dec. 31, 2015 USD ($)	Sep. 30, 2016 USD ($) Partnership
Commitment And Contingencies [Line Items]
Future minimum aggregate amounts payable to the reinsurers for year one			$ 19,400
Future minimum aggregate amounts payable to the reinsurers for year two			19,400
Unfunded Balance		$ 18,224	$ 13,554
Capital Commitment [Member]
Commitment And Contingencies [Line Items]
Number of limited partnership interests received capital contribution \| Partnership			3
Premium Tax [Member]
Commitment And Contingencies [Line Items]
Loss contingency amount	$ 1,754
Proposed premium tax adjustment with interest	$ 1,913
Loss contingency related to credit disallowance			The auditor's proposed adjustments primarily related to the Department's proposed disallowance of the entire amount of $1,754 in Florida salary credits applicable to that period.
Settlement of premium tax and interest		38
Reemployment tax filing refunds		57
Net benefit realized from litigation settlement		$ 19