• Filing Date: 2015-03-10
  • Form Type: 10-K
  • Description: Annual report
v2.4.1.9
Long-Term Debt (3.875% Convertible Senior Notes) - Additional Information (Detail) (USD $)
In Thousands, except Per Share data, unless otherwise specified
3 Months Ended 12 Months Ended
Dec. 31, 2014
Sep. 30, 2014
Jun. 30, 2014
Mar. 31, 2014
Dec. 31, 2013
Sep. 30, 2013
Jun. 30, 2013
Mar. 31, 2013
Dec. 31, 2014
Dec. 31, 2013
Dec. 30, 2013
Dec. 11, 2013
Debt Instrument [Line Items]                        
Debt instrument, stated interest rate         3.875%us-gaap_DebtInstrumentInterestRateStatedPercentage         3.875%us-gaap_DebtInstrumentInterestRateStatedPercentage    
Repurchase of common stock under prepaid forward contract                 $ 643us-gaap_PaymentsForRepurchaseOfCommonStock $ 30,886us-gaap_PaymentsForRepurchaseOfCommonStock    
Interest expense on debt 2,644us-gaap_InterestExpenseDebt 2,626us-gaap_InterestExpenseDebt 2,609us-gaap_InterestExpenseDebt 2,574us-gaap_InterestExpenseDebt 1,228us-gaap_InterestExpenseDebt 847us-gaap_InterestExpenseDebt 846us-gaap_InterestExpenseDebt 686us-gaap_InterestExpenseDebt 10,453us-gaap_InterestExpenseDebt 3,607us-gaap_InterestExpenseDebt    
Offering costs for convertible senior notes                   557us-gaap_AdjustmentsToAdditionalPaidInCapitalConvertibleDebtWithConversionFeature    
Convertible Senior Notes [Member]                        
Debt Instrument [Line Items]                        
Debt instrument, stated interest rate 3.875%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConvertibleDebtMember
      3.875%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConvertibleDebtMember
      3.875%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConvertibleDebtMember
3.875%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConvertibleDebtMember
  3.875%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConvertibleDebtMember
Debt instrument, face amount 103,000us-gaap_DebtInstrumentFaceAmount
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConvertibleDebtMember
      103,000us-gaap_DebtInstrumentFaceAmount
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConvertibleDebtMember
      103,000us-gaap_DebtInstrumentFaceAmount
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConvertibleDebtMember
103,000us-gaap_DebtInstrumentFaceAmount
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConvertibleDebtMember
3,000us-gaap_DebtInstrumentFaceAmount
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConvertibleDebtMember
100,000us-gaap_DebtInstrumentFaceAmount
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConvertibleDebtMember
Net proceeds after underwriting and issuance costs                 99,514us-gaap_ProceedsFromDebtNetOfIssuanceCosts
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConvertibleDebtMember
     
Debt issuance costs                 3,486us-gaap_DebtIssuanceCosts
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConvertibleDebtMember
     
Debt instrument, maturity date                 Mar. 15, 2019      
Repurchase of common stock under prepaid forward contract                 29,923us-gaap_PaymentsForRepurchaseOfCommonStock
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConvertibleDebtMember
     
Interest expense on debt                 7,050us-gaap_InterestExpenseDebt
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConvertibleDebtMember
379us-gaap_InterestExpenseDebt
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConvertibleDebtMember
   
Non-cash interest expense                 3,070us-gaap_AmortizationOfFinancingCosts
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConvertibleDebtMember
164us-gaap_AmortizationOfFinancingCosts
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConvertibleDebtMember
   
Debt instrument, effective interest rate 8.30%us-gaap_DebtInstrumentInterestRateEffectivePercentage
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConvertibleDebtMember
              8.30%us-gaap_DebtInstrumentInterestRateEffectivePercentage
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConvertibleDebtMember
     
Debt discount, remaining amortization period                 4 years 2 months 12 days      
Convertible debt, conversion price $ 62.47us-gaap_DebtInstrumentConvertibleConversionPrice1
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConvertibleDebtMember
              $ 62.47us-gaap_DebtInstrumentConvertibleConversionPrice1
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConvertibleDebtMember
     
Convertible debt, conversion ratio                 16.0090us-gaap_DebtInstrumentConvertibleConversionRatio1
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConvertibleDebtMember
     
Convertible debt, conversion debt description                 The note holders may convert all or a portion of their Convertible Notes during specified periods as follows: (1) during any calendar quarter commencing after the calendar quarter ending on March 31, 2014, if the last reported sale price of the Company’s common stock for at least 20 trading days during the period of 30 consecutive trading days ending on the last trading day of the immediately preceding calendar quarter is greater than 130% of the conversion price on each applicable trading day; (2) during the five business-day period after any ten consecutive trading-day period in which the trading price per $1 principal amount of the Convertible Notes is less than 98% of the product of the last reported sale price and the conversion rate on each such trading day; (3) if specified corporate events, including a change in control, occur; or (4) at any time on or after January 1, 2019      
Equity component on convertible senior notes                 16,457us-gaap_AdjustmentsToAdditionalPaidInCapitalEquityComponentOfConvertibleDebt
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConvertibleDebtMember
     
Offering costs for convertible senior notes                 $ 557us-gaap_AdjustmentsToAdditionalPaidInCapitalConvertibleDebtWithConversionFeature
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConvertibleDebtMember
     
Convertible Senior Notes [Member] | Convertible Debt Instrument Conversion Period One [Member]                        
Debt Instrument [Line Items]                        
Convertible debt, threshold trading days                 20us-gaap_DebtInstrumentConvertibleThresholdTradingDays
/ us-gaap_DebtConversionByUniqueDescriptionAxis
= hci_ConvertibleDebtInstrumentConversionPeriodOneMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConvertibleDebtMember
     
Convertible debt, threshold consecutive trading days                 30 days      
Convertible debt, threshold percentage of stock trigger price                 130.00%us-gaap_DebtInstrumentConvertibleThresholdPercentageOfStockPriceTrigger
/ us-gaap_DebtConversionByUniqueDescriptionAxis
= hci_ConvertibleDebtInstrumentConversionPeriodOneMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConvertibleDebtMember
     
Convertible Senior Notes [Member] | Convertible Debt Instrument Conversion Period Two [Member]                        
Debt Instrument [Line Items]                        
Convertible debt, threshold trading days                 5us-gaap_DebtInstrumentConvertibleThresholdTradingDays
/ us-gaap_DebtConversionByUniqueDescriptionAxis
= hci_ConvertibleDebtInstrumentConversionPeriodTwoMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConvertibleDebtMember
     
Convertible debt, threshold consecutive trading days                 10 days      
Convertible debt, threshold percentage of stock trigger price                 98.00%us-gaap_DebtInstrumentConvertibleThresholdPercentageOfStockPriceTrigger
/ us-gaap_DebtConversionByUniqueDescriptionAxis
= hci_ConvertibleDebtInstrumentConversionPeriodTwoMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConvertibleDebtMember