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Insurance Operations - Additional Information (Detail) (USD $) | 3 Months Ended | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | ---
Mar. 31, 2012 | Dec. 31, 2014 | Dec. 31, 2011 | Dec. 31, 2013 | Dec. 31, 2012 | Oct. 04, 2013
Statutory Accounting Practices [Line Items] |  |  |  |  |  |
Deferred policy acquisition costs, pre-tax charge against earnings | $ 1,600,000uve_DeferredPolicyAcquisitionCostsNetDifferenceAmount |  |  |  |  |
Capitalized costs amortization period |  | 12 months |  |  |  |
Deferred policy acquisition costs, net |  | 25,660,000us-gaap_DeferredPolicyAcquisitionCosts | 11,355,000us-gaap_DeferredPolicyAcquisitionCosts | 15,899,000us-gaap_DeferredPolicyAcquisitionCosts | 17,282,000us-gaap_DeferredPolicyAcquisitionCosts |
Deferred policy acquisition costs, net, difference percentage |  |  | 13.00%uve_DeferredPolicyAcquisitionCostsNetDifferencePercentage |  |  |
Maximum dividend without prior approval is limited, Percent of statutory unassigned capital surplus |  | 10.00%uve_PercentageOfMaximumDividendAsPercentageOfStatutoryUnassignedCapitalSurplus |  |  |  |
Maximum dividend paid by UPCIC and APPCIC |  | The maximum dividend that may be paid by UPCIC and APPCIC to their immediate parent company, Universal Insurance Holding Company of Florida (“UIHCF”), without prior regulatory approval is limited to the lesser of statutory net income from operations of the preceding calendar year or 10.0% of statutory unassigned surplus as of the preceding year end. |  |  |  |
Net direct premiums |  | 0.90%uve_PercentageOfAssessmentForMemberCompanies |  |  |  |
Insurance entities participation assessment total |  | 6,300,000uve_ParticipationInAssessmentByMemberCompanies |  |  |  |
Net direct premiums generated in Florida |  | 704,800,000uve_NetDirectPremiumsGeneratedInFlorida |  |  |  |
Extraordinary Dividend [Member] | Florida Office of Insurance Regulation [Member] |  |  |  |  |  |
Statutory Accounting Practices [Line Items] |  |  |  |  |  |
Administrative Fine |  |  |  |  |  | 1,300,000us-gaap_RegulatoryLiabilityCurrent / us-gaap_RegulatoryAgencyAxis = uve_FloridaOfficeOfInsuranceRegulationMember / us-gaap_RegulatoryLiabilityAxis = uve_ExtraordinaryDividendMember
UPCIC [Member] |  |  |  |  |  |
Statutory Accounting Practices [Line Items] |  |  |  |  |  |
Statutory ordinary dividend capacity |  | 290,000us-gaap_StatutoryAccountingPracticesStatutoryAmountAvailableForDividendPaymentsWithoutRegulatoryApproval / us-gaap_StatutoryAccountingPracticesByJurisdictionAxis = uve_UniversalPropertyAndCasualtyInsuranceCompanyMember |  |  |  |
UPCIC and APPCIC [Member] |  |  |  |  |  |
Statutory Accounting Practices [Line Items] |  |  |  |  |  |
Dividend paid to UIHCF |  | 0uve_DividendIncomeFromSubsidiary / us-gaap_StatutoryAccountingPracticesByJurisdictionAxis = uve_AmericanPlatinumPropertyAndCasualtyInsuranceCompanyAndUniversalPropertyAndCasualtyInsuranceCompanyMember |  |  |  |
Minimum capitalization rate |  | 10.00%uve_MinimumCapitalizationRate / us-gaap_StatutoryAccountingPracticesByJurisdictionAxis = uve_AmericanPlatinumPropertyAndCasualtyInsuranceCompanyAndUniversalPropertyAndCasualtyInsuranceCompanyMember |  |  |  |
Statutory Accounting Practices, Statutory Capital and Surplus Required |  | 5,000,000us-gaap_StatutoryAccountingPracticesStatutoryCapitalAndSurplusRequired / us-gaap_StatutoryAccountingPracticesByJurisdictionAxis = uve_AmericanPlatinumPropertyAndCasualtyInsuranceCompanyAndUniversalPropertyAndCasualtyInsuranceCompanyMember |  |  |  |
Minimum capital required |  | Greater of ten percent of the insurer’s total liabilities or $5.0 million. |  |  |  |
Previous Accounting Guidance [Member] |  |  |  |  |  |
Statutory Accounting Practices [Line Items] |  |  |  |  |  |
Deferred policy acquisition costs, net | 9,000,000us-gaap_DeferredPolicyAcquisitionCosts / us-gaap_ProspectiveAdoptionOfNewAccountingPronouncementsAxis = us-gaap_PreviousAccountingGuidanceMember |  |  |  |  |
Adjustments for New Accounting Pronouncement [Member] |  |  |  |  |  |
Statutory Accounting Practices [Line Items] |  |  |  |  |  |
Deferred policy acquisition costs, net | $ 5,600,000us-gaap_DeferredPolicyAcquisitionCosts / us-gaap_ProspectiveAdoptionOfNewAccountingPronouncementsAxis = us-gaap_NewAccountingPronouncementMember |  |  |  |  |

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- Definition Net amount of deferred policy acquisition costs capitalized on contracts remaining in force as of the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 16 -Article 12 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 825 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6487548&loc=d3e32546-158582 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 30 -Section 55 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35755678&loc=d3e11446-158418 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6481648&loc=d3e11198-158413 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.(a),7) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 7 -Article 7 + Details
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- Definition For insurance companies, a description of the minimum regulatory capital requirements imposed by state insurance regulators, and restrictions on dividend payments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 505 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6486098&loc=d3e24708-158529 + Details
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- Definition Description of dividends paid, restrictions on dividend payments, statutory capital and surplus amounts, requirements and future requirements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 505 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6486098&loc=d3e24708-158529 + Details
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- Definition Amount of dividends that can be declared or paid without approval of regulatory agency. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(e)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph e -Article 4 + Details
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- Definition Amount of statutory capital required to be maintained as of the balance sheet date under prescribed or permitted statutory accounting practices. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 505 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6486098&loc=d3e24708-158529 + Details
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- Definition Change, presented in dollar amount, of deferred acquisition cost due to adoption of new guidance. + References No definition available. + Details
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- Definition The percentage of statutory unassigned surplus as of the preceding year end which represents the maximum dividend that may be paid by an insurance company to their immediate parent company without prior approval from their regulatory agency. + References No definition available. + Details
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