Document & Entity Information Document - USD ($)	12 Months Ended
	Dec. 31, 2018	Mar. 08, 2019	Jun. 29, 2018
Document and Entity Information [Abstract]
Entity Public Float			$ 393,570,120
Document type	10-K
Amendment flag	false
Document period end date	Dec. 31, 2018
Document fiscal period focus	FY
Document Fiscal Year Focus	2018
Trading symbol	UIHC
Registrant name	United Insurance Holdings Corp.
Central index key	0001401521
Filer category	Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Well-known Seasoned Issuer	No
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Common stock outstanding		42,983,953
Current Fiscal Year End Date	--12-31