• Filing Date: 2015-03-10
  • Form Type: 10-K
  • Description: Annual report
v2.4.1.9
Investments (Net Investment Income (Loss)) - Additional Information (Detail) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2014
Bank
Accounts
Dec. 31, 2013
Bank
Accounts
Dec. 31, 2012
Dec. 31, 2011
Schedule of Investments [Line Items]        
Cash and cash equivalents $ 314,716us-gaap_CashAndCashEquivalentsAtCarryingValue $ 293,398us-gaap_CashAndCashEquivalentsAtCarryingValue $ 230,214us-gaap_CashAndCashEquivalentsAtCarryingValue $ 100,355us-gaap_CashAndCashEquivalentsAtCarryingValue
Deposits representing cash and cash equivalents in percentage 74.40%hci_PercentageOfCashAndCashEquivalentsDeposited 82.30%hci_PercentageOfCashAndCashEquivalentsDeposited    
Number of national banks 3hci_NumberOfNationalBanksInWhichDepositsHeld 3hci_NumberOfNationalBanksInWhichDepositsHeld    
Number of custodial accounts 3hci_NumberOfCustodialAccounts 2hci_NumberOfCustodialAccounts    
Custodial Accounts [Member]        
Schedule of Investments [Line Items]        
Cash and cash equivalents 48,674us-gaap_CashAndCashEquivalentsAtCarryingValue
/ invest_InvestmentIssuerAxis
= hci_CustodialAccountsMember
22,252us-gaap_CashAndCashEquivalentsAtCarryingValue
/ invest_InvestmentIssuerAxis
= hci_CustodialAccountsMember
   
Bank Deposits [Member]        
Schedule of Investments [Line Items]        
Cash and cash equivalents $ 234,025us-gaap_CashAndCashEquivalentsAtCarryingValue
/ us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsAxis
= hci_BankDepositsMember
$ 241,378us-gaap_CashAndCashEquivalentsAtCarryingValue
/ us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsAxis
= hci_BankDepositsMember