XML 67 R49.htm IDEA: XBRL DOCUMENT v2.4.1.9
Long-Term Debt Long-Term Debt - Narrative (Details) (USD $)
3 Months Ended
Mar. 31, 2015
Dec. 31, 2014
Debt Instrument [Line Items]    
Notes Payable, Noncurrent $ 13,235,000us-gaap_LongTermNotesPayable $ 13,529,000us-gaap_LongTermNotesPayable
Statutory Accounting Practices, Statutory Capital and Surplus Required 31,690,000us-gaap_StatutoryAccountingPracticesStatutoryCapitalAndSurplusRequired  
Proceeds from Contributions from Parent 0us-gaap_ProceedsFromContributionsFromParent  
Debt Instrument, Basis Spread on Variable Rate 45000.00%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1  
Debt Instrument, Basis Spread on Variable Rate 1.94%uihc_A10YearConstantMaturityInterestRate  
Debt Instrument, Interest Rate, Increase (Decrease) 2500.00%us-gaap_DebtInstrumentInterestRateIncreaseDecrease  
Florida State Board of Administration [Member]    
Debt Instrument [Line Items]    
Notes Payable, Noncurrent 13,235,000us-gaap_LongTermNotesPayable
/ uihc_NotesPayableLenderNameAxis
= uihc_FloridaStateBoardOfAdministrationMember
13,529,000us-gaap_LongTermNotesPayable
/ uihc_NotesPayableLenderNameAxis
= uihc_FloridaStateBoardOfAdministrationMember
Debt Instrument, Interest Rate, Stated Percentage 2.20%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ uihc_NotesPayableLenderNameAxis
= uihc_FloridaStateBoardOfAdministrationMember
2.50%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ uihc_NotesPayableLenderNameAxis
= uihc_FloridaStateBoardOfAdministrationMember
Debt Instrument, Surplus Definition $ 20,000,000uihc_DebtInstrumentSurplusDefinition
/ uihc_NotesPayableLenderNameAxis
= uihc_FloridaStateBoardOfAdministrationMember
 
Florida State Board of Administration [Member] | Gross and Net Writing Ratio [Member]    
Debt Instrument [Line Items]    
Additional Interest Paid Resulting From Violating Writing Ratio Covenant, Percent 4.50%uihc_AdditionalInterestPaidResultingFromViolatingWritingRatioCovenantPercent
/ uihc_NotesPayableLenderNameAxis
= uihc_FloridaStateBoardOfAdministrationMember
/ uihc_WritingRatioTypesAxis
= uihc_GrossAndNetWritingRatioMember
 
Florida State Board of Administration [Member] | Gross Writing Ratio [Member]    
Debt Instrument [Line Items]    
Required ratio of written premims to surplus 6.00%uihc_RequiredWrittenPremiumsToSurplusRatio
/ uihc_NotesPayableLenderNameAxis
= uihc_FloridaStateBoardOfAdministrationMember
/ uihc_WritingRatioTypesAxis
= uihc_GrossWritingRatioMember
 
Actual ratio of written premiums to surplus 9.70%uihc_ActualWrittenPremiumsToSurplusRatio
/ uihc_NotesPayableLenderNameAxis
= uihc_FloridaStateBoardOfAdministrationMember
/ uihc_WritingRatioTypesAxis
= uihc_GrossWritingRatioMember
 
Ratio of Written Premiums to Surplus Resulting in Increase in Interest Rate 4.50%uihc_RatioOfWrittenPremiumsToSurplusResultingInIncreaseInInterestRate
/ uihc_NotesPayableLenderNameAxis
= uihc_FloridaStateBoardOfAdministrationMember
/ uihc_WritingRatioTypesAxis
= uihc_GrossWritingRatioMember
 
Florida State Board of Administration [Member] | Net Writing Ratio [Member]    
Debt Instrument [Line Items]    
Required ratio of written premims to surplus 2.00%uihc_RequiredWrittenPremiumsToSurplusRatio
/ uihc_NotesPayableLenderNameAxis
= uihc_FloridaStateBoardOfAdministrationMember
/ uihc_WritingRatioTypesAxis
= uihc_NetWritingRatioMember
 
Actual ratio of written premiums to surplus 5.90%uihc_ActualWrittenPremiumsToSurplusRatio
/ uihc_NotesPayableLenderNameAxis
= uihc_FloridaStateBoardOfAdministrationMember
/ uihc_WritingRatioTypesAxis
= uihc_NetWritingRatioMember
 
Ratio of Written Premiums to Surplus Resulting in Increase in Interest Rate 1.50%uihc_RatioOfWrittenPremiumsToSurplusResultingInIncreaseInInterestRate
/ uihc_NotesPayableLenderNameAxis
= uihc_FloridaStateBoardOfAdministrationMember
/ uihc_WritingRatioTypesAxis
= uihc_NetWritingRatioMember
 
Florida State Board of Administration [Member] | Other Than Gross and Net Writing Ratio [Member]    
Debt Instrument [Line Items]    
Additional Interest Paid Resulting From Violating Writing Ratio Covenant, Percent 0.25%uihc_AdditionalInterestPaidResultingFromViolatingWritingRatioCovenantPercent
/ uihc_NotesPayableLenderNameAxis
= uihc_FloridaStateBoardOfAdministrationMember
/ uihc_WritingRatioTypesAxis
= uihc_OtherThanGrossAndNetWritingRatioMember