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Related Party Transactions - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified | 6 Months Ended
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Jun. 30, 2013 Directors
Moksha [Member] |
Related Party Transaction [Line Items] |
Assumed total covered exposure | $ 15,400
Premiums paid | 4,300
No. of non-employee directors | 1
Oxbridge [Member] |
Related Party Transaction [Line Items] |
Assumed total covered exposure | 10,100
Premiums paid | $ 4,900
No. of non-employee directors | 3

X
- Definition Total covered exposure assumed by entity. + References No definition available. + Details
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Namespace Prefix: | hci_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Number of non employee directors as capital partner participants in reinsurance treaty with related party. + References No definition available. + Details
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Namespace Prefix: | hci_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Premium paid by Claddaugh. + References No definition available. + Details
Name: | hci_PremiumsPaid
Namespace Prefix: | hci_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_RelatedPartyTransactionLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration