Cover - shares	6 Months Ended
	Jun. 30, 2024	Aug. 01, 2024
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jun. 30, 2024
Document Transition Report	false
Entity File Number	001-36462
Entity Registrant Name	Heritage Insurance Holdings, Inc.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	45-5338504
Entity Address, Address Line One	1401 N. Westshore Blvd
Entity Address, City or Town	Tampa
Entity Address, State or Province	FL
Entity Address, Postal Zip Code	33607
City Area Code	727
Local Phone Number	362-7200
Title of each class	Common Stock, par value $0.0001 per share
Trading Symbol(s)	HRTG
Name of each exchange on which registered	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Accelerated Filer
Entity Emerging Growth Company	false
Entity Small Business	true
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		30,684,198
Entity Central Index Key	0001598665
Current Fiscal Year End Date	--12-31
Amendment Flag	false
Document Fiscal Year Focus	2024
Document Fiscal Period Focus	Q2