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Goodwill and Other Intangible Assets - Additional Information (Detail) (USD $)
0 Months Ended 12 Months Ended
Oct. 01, 2014
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Jun. 30, 2013
Jul. 31, 2013
Finite-Lived Intangible Assets [Line Items]            
Weighted average cost of capital 13.00%us-gaap_FairValueInputsDiscountRate 11.10%us-gaap_FairValueInputsDiscountRate        
Goodwill   $ 27,990,000us-gaap_Goodwill $ 3,378,000us-gaap_Goodwill $ 60,744,000us-gaap_Goodwill    
Goodwill attributable to reporting unit     3,700,000us-gaap_DisposalGroupIncludingDiscontinuedOperationGoodwill1      
Amortization expense for amortizable intangible assets   901,000us-gaap_AmortizationOfIntangibleAssets 0us-gaap_AmortizationOfIntangibleAssets 200,000us-gaap_AmortizationOfIntangibleAssets    
Amortization expense for amortizable intangible assets for the year ending December 31, 2015   3,400,000us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths        
Amortization expense for amortizable intangible assets for the year ending December 31, 2016   3,400,000us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo        
Amortization expense for amortizable intangible assets for the year ending December 31, 2017   3,400,000us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree        
Amortization expense for amortizable intangible assets for the year ending December 31, 2018   3,000,000us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour        
Amortization expense for amortizable intangible assets for the year ending December 31, 2019   2,700,000us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive        
Amortization expense for amortizable intangible assets thereafter 2019   15,200,000us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive        
Canada [Member]            
Finite-Lived Intangible Assets [Line Items]            
Goodwill       34,162,000us-gaap_Goodwill
/ us-gaap_StatementGeographicalAxis
= country_CA
   
United States [Member]            
Finite-Lived Intangible Assets [Line Items]            
Goodwill       26,582,000us-gaap_Goodwill
/ us-gaap_StatementGeographicalAxis
= country_US
   
BLACKIRON Data [Member]            
Finite-Lived Intangible Assets [Line Items]            
Goodwill         20,200,000us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= hchc_BlackironDataMember
 
North America Telecom [Member]            
Finite-Lived Intangible Assets [Line Items]            
Goodwill           22,600,000us-gaap_Goodwill
/ us-gaap_StatementBusinessSegmentsAxis
= hchc_NorthAmericaTelecomMember
Sale of Trademark   27,000,000hchc_AllocationOfGoodwillToReportingUnit
/ us-gaap_StatementBusinessSegmentsAxis
= hchc_NorthAmericaTelecomMember
       
Deferred tax liabilities   10,500,000us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets
/ us-gaap_StatementBusinessSegmentsAxis
= hchc_NorthAmericaTelecomMember
       
North America Telecom [Member] | Canada [Member]            
Finite-Lived Intangible Assets [Line Items]            
Goodwill attributable to reporting unit           13,200,000us-gaap_DisposalGroupIncludingDiscontinuedOperationGoodwill1
/ us-gaap_StatementBusinessSegmentsAxis
= hchc_NorthAmericaTelecomMember
/ us-gaap_StatementGeographicalAxis
= country_CA
Primus Telecommunications Inc [Member] | United States [Member]            
Finite-Lived Intangible Assets [Line Items]            
Goodwill attributable to reporting unit           $ 4,000,000us-gaap_DisposalGroupIncludingDiscontinuedOperationGoodwill1
/ us-gaap_StatementBusinessSegmentsAxis
= hchc_PrimusTelecommunicationsIncMember
/ us-gaap_StatementGeographicalAxis
= country_US