Cover Page - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Mar. 01, 2023	Jun. 30, 2022
Document Information [Line Items]
Document Type	10-K
Document Annual Report	true
Current Fiscal Year End Date	--12-31
Document Period End Date	Dec. 31, 2022
Document Transition Report	false
Entity File Number	001-40244
Entity Registrant Name	HAGERTY, INC.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	86-1213144
Entity Address, Address Line One	121 Drivers Edge
Entity Address, City or Town	Traverse City
Entity Address, State or Province	MI
Entity Address, Postal Zip Code	49684
City Area Code	(800)
Local Phone Number	922-4050
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	true
Entity Ex Transition Period	false
ICFR Auditor Attestation Flag	false
Entity Shell Company	false
Entity Public Float			$ 262.1
Documents Incorporated by Reference	Portions of the registrant's definitive Proxy Statement for its 2023 Annual Meeting of Stockholders, which will be filed with the Securities and Exchange Commission within 120 days of December 31, 2022, are incorporated by reference into Part III, Items 10-14 of this Annual Report on Form 10-K.
Entity Central Index Key	0001840776
Amendment Flag	false
Document Fiscal Period Focus	FY
Document Fiscal Year Focus	2022
Class A common stock, par value $0.0001 per share
Document Information [Line Items]
Title of 12(b) Security	Class A common stock, par value $0.0001 per share
Trading Symbol	HGTY
Security Exchange Name	NYSE
Entity Common Stock, Shares Outstanding		83,211,595
Warrants, each whole warrant exercisable for one share of Class A common stock, each at an exercise price of $11.50 per share
Document Information [Line Items]
Title of 12(b) Security	Warrants, each whole warrant exercisable for one shareof Class A common stock, each at an exercise price of$11.50 per share
Trading Symbol	HGTY.WS
Security Exchange Name	NYSE
Class V Common Stock
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		251,033,906