XML 60 R48.htm IDEA: XBRL DOCUMENT v3.21.2

Reinsurance - Current Ratings from Rating Agencies and Unsecured Net Amounts Due from Reinsurers Whose Aggregate Balance Exceeded 3% of Stockholders' Equity (Detail) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Ceded Credit Risk [Line Items]
Reinsurance unsecured amounts due from reinsurers	$ 131,136	$ 257,322
Florida Hurricane Catastrophe Fund
Ceded Credit Risk [Line Items]
Reinsurance unsecured amounts due from reinsurers	37,341	121,298
Allianz Risk Transfer (Bermuda) Ltd. | AM Best Company A Plus Rating | Standard & Poor's, AA- Rating | Moody's, Aa3 Rating
Ceded Credit Risk [Line Items]
Reinsurance unsecured amounts due from reinsurers	74,204	96,652
Allianz Risk Transfer
Ceded Credit Risk [Line Items]
Reinsurance unsecured amounts due from reinsurers	0	21,087
Renaissance Reinsurance Ltd. | AM Best Company A Plus Rating | Standard & Poor's, A Plus Rating | Moody's A1 Rating
Ceded Credit Risk [Line Items]
Reinsurance unsecured amounts due from reinsurers	$ 19,591	$ 18,285

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_CededCreditRiskLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Represents total unsecured net amounts due from reinsurers whose aggregate balance exceeded 3% of stockholders' equity as of the reporting date.

+ References

No definition available.

+ Details

Name:	uve_ReinsuranceUnsecuredAmountsDueFromReinsurers
Namespace Prefix:	uve_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Details

Name:	us-gaap_CededCreditRiskAxis=uve_FloridaHurricaneCatastropheFundMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_CededCreditRiskAxis=uve_AllianzRiskTransferBermudaLtdMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_CreditRatingAMBestAxis=srt_AMBestAPlusRatingMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_CreditRatingStandardPoorsAxis=srt_StandardPoorsAAMinusRatingMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_CreditRatingMoodysAxis=srt_MoodysAa3RatingMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_CededCreditRiskAxis=uve_AllianzRiskTransferMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_CededCreditRiskAxis=uve_RenaissanceReinsuranceLtdMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_CreditRatingStandardPoorsAxis=srt_StandardPoorsAPlusRatingMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_CreditRatingMoodysAxis=srt_MoodysA1RatingMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: