Organization, Consolidation and Presentation - Business (Details)	Mar. 31, 2013 states
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Number of Future States in which may Entity Operate	5

Number of Future States in which may Entity Operate

No definition available.

Name:	uihc_NumberOfFutureStatesInWhichMayEntityOperate
Namespace Prefix:	uihc_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant