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Reinsurance - Additional Information (Detail) | 9 Months Ended
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Sep. 30, 2014
Stockholders' Equity, Total [Member] | Amounts Due From Reinsurers [Member] |
Effects of Reinsurance [Line Items] |
Unsecured amounts due from reinsurers exceeding a fixed percentage of stockholders equity | 3.00%
Reinsurance Program Effective June One Two Thousand Fourteen [Member] |
Effects of Reinsurance [Line Items] |
Percentage of premium ceded | 30.00%
Percentage reduction of premium ceded | 15.00%
Reinsurance Program Effective June One Two Thousand Thirteen [Member] |
Effects of Reinsurance [Line Items] |
Percentage of premium ceded | 45.00%

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- Definition For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 21 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=35750535&loc=d3e13537-108611 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=6927468&loc=d3e6404-108592 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=35750535&loc=d3e13531-108611 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=6927468&loc=d3e6351-108592 + Details
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- Details
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- Definition Represents the percentage of premiums ceded to reinsurers, in order to reduce the company's risk of loss. + References No definition available. + Details
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Namespace Prefix: | uve_
Data Type: | num:percentItemType
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- Definition Represents the reduction (as a percentage) in premiums ceded to reinsurers from the prior year. + References No definition available. + Details
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Namespace Prefix: | uve_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration