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Description of Business (Details) - Hagerty Reinsurance Limited	12 Months Ended
	Dec. 31, 2025
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Ownership percentage by Hagerty, Inc increase in one year	100.00%
Premium percentage	100.00%
Ownership interest	100.00%
Fronting fee percentage	2.00%
Minimum
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Ownership percentage by Hagerty, Inc	25.00%
Maximum
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Ownership percentage by Hagerty, Inc	80.00%

X

- Definition

Limited Liability Company (LLC) or Limited Partnership (LP), Managing Member or General Partner, Ownership Interest Increase In One Year

+ References

No definition available.

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- Definition

Limited Liability Company Or Limited Partnership, Members Or Limited Partners, Fronting Fee Percentage

+ References

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- Definition

Limited Liability Company Or Limited Partnership, Members Or Limited Partners, Premium Percentage

+ References

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

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- Definition

Percentage investment held by the managing member or general partner of the limited liability company (LLC) or limited partnership (LP).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 272
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482987/272-10-50-3

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- Definition

Percentage investment held by members or limited partners of limited liability company (LLC) or limited partnership (LP).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 272
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482987/272-10-50-3

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