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Organization, Consolidation and Presentation (Details)	9 Months Ended
	Sep. 30, 2022 states subsidiary
Number of Wholly-Owned Subsidiaries
Number of Wholly Owned Subsidiaries | subsidiary	3
Number of States in which Entity Operates	7
Additional Licensed States	11

X

- Definition

Number of Additional States in which Entity is Licensed

+ References

No definition available.

+ Details

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Namespace Prefix:	uihc_
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Balance Type:	na
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X

- Definition

Number of Wholly-Owned Subsidiaries

+ References

No definition available.

+ Details

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Namespace Prefix:	uihc_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

X

- Definition

[Line Items] for Number of Wholly-Owned Subsidiaries [Table]

+ References

No definition available.

+ Details

Name:	uihc_NumberofWhollyOwnedSubsidiariesLineItems
Namespace Prefix:	uihc_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The number of states the entity operates in as of the balance sheet date.

+ References

No definition available.

+ Details

Name:	us-gaap_NumberOfStatesInWhichEntityOperates
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
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