Debt - Narrative (Details) $ in Millions	3 Months Ended
	Mar. 31, 2026 USD ($) letter_of_credit	Nov. 04, 2025 USD ($)	Mar. 31, 2025	Sep. 30, 2023 USD ($)
Debt Instrument [Line Items]
Number of letters of credit authorized | letter_of_credit	3
Letters of credit outstanding, amount	$ 10.8
State Farm Term Loan | 2025 JPM Credit Facility
Debt Instrument [Line Items]
Fixed rate (as a percent)				8.00%
State Farm Term Loan | 2025 JPM Credit Facility | Hagerty Reinsurance Ltd
Debt Instrument [Line Items]
Debt face amount				$ 25.0
Revolving Credit Facility | 2025 JPM Credit Facility | 2025 JPM Credit Facility
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 375.0
Net leverage ratio	3.25
Debt, weighted average interest rate (as a percent)	4.75%		5.91%
Revolving Credit Facility | 2025 JPM Credit Facility | Foreign Line of Credit
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 100.0
Revolving Credit Facility | BAC Credit Facility | 2025 JPM Credit Facility
Debt Instrument [Line Items]
Maximum borrowing capacity		$ 150.0
Borrowing base	$ 110.5
Annual extension term (in year)	1 year
Letter of Credit | 2025 JPM Credit Facility | 2025 JPM Credit Facility
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 175.0
Letter of Credit | 2025 JPM Credit Facility | Foreign Line of Credit
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 75.0