Liability for Unpaid Losses and Loss Adjustment Expenses - Claims Development (Details) $ in Thousands	Dec. 31, 2025 USD ($) Claim	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)	Dec. 27, 2023 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Dec. 13, 2017 USD ($)	Dec. 31, 2016 USD ($)
Liability for Claims and Claims Adjustment Expense [Line Items]
Short-duration Insurance Contracts, Liability for Unpaid Claims and Allocated Claim Adjustment Expense, Net	$ 44,061	$ 65,645
Property and Casualty, Personal Insurance Product Line
Liability for Claims and Claims Adjustment Expense [Line Items]
Short-duration Insurance Contracts, Incurred Claims and Allocated Claim Adjustment Expense, Net	522,902
Short-Duration Insurance Contracts, Cumulative Paid Claims and Allocated Claim Adjustment Expense, Net	478,844
Property and Casualty, Personal Insurance Product Line | Short-Duration Insurance Contract, Accident Year 2015
Liability for Claims and Claims Adjustment Expense [Line Items]
Short-duration Insurance Contracts, Liability for Unpaid Claims and Allocated Claim Adjustment Expense, Net	3
Property and Casualty, Personal Insurance Product Line | 'Short-Duration Insurance Contract, Accident Year 2016
Liability for Claims and Claims Adjustment Expense [Line Items]
Short-duration Insurance Contracts, Incurred Claims and Allocated Claim Adjustment Expense, Net	$ 40,023	40,371	$ 73,526		$ 89,869	$ 80,322	$ 79,372	$ 78,078	$ 74,195	$ 66,742	$ 68,980
Short-duration Insurance Contract, Cumulative Number of Reported Claims | Claim	1,145
Short-Duration Insurance Contracts, Cumulative Paid Claims and Allocated Claim Adjustment Expense, Net	$ 40,022	40,021		$ 40,017	54,497	39,940	38,700	37,844	35,548	32,651	$ 25,567
Property and Casualty, Personal Insurance Product Line | 'Short-Duration Insurance Contract, Accident Year 2017
Liability for Claims and Claims Adjustment Expense [Line Items]
Short-duration Insurance Contracts, Incurred Claims and Allocated Claim Adjustment Expense, Net	79,948	78,782	69,001		74,771	72,982	69,886	68,513	65,178	61,644
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	$ 6,995
Short-duration Insurance Contract, Cumulative Number of Reported Claims | Claim	4,246
Short-Duration Insurance Contracts, Cumulative Paid Claims and Allocated Claim Adjustment Expense, Net	$ 68,283	61,771		54,143	84,933	80,460	73,683	64,329	62,353	$ 40,467
Property and Casualty, Personal Insurance Product Line | 'Short-Duration Insurance Contract, Accident Year 2018
Liability for Claims and Claims Adjustment Expense [Line Items]
Short-duration Insurance Contracts, Incurred Claims and Allocated Claim Adjustment Expense, Net	67,722	67,908	45,781		61,877	44,604	45,458	46,382	51,100
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	$ (755)
Short-duration Insurance Contract, Cumulative Number of Reported Claims | Claim	3,680
Short-Duration Insurance Contracts, Cumulative Paid Claims and Allocated Claim Adjustment Expense, Net	$ 68,433	68,496		67,193	82,443	66,848	61,885	54,551	$ 27,852
Property and Casualty, Personal Insurance Product Line | 'Short-Duration Insurance Contract, Accident Year 2019
Liability for Claims and Claims Adjustment Expense [Line Items]
Short-duration Insurance Contracts, Incurred Claims and Allocated Claim Adjustment Expense, Net	71,062	70,596	97,479		64,911	102,812	101,577	89,107
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	$ 1,898
Short-duration Insurance Contract, Cumulative Number of Reported Claims | Claim	5,012
Short-Duration Insurance Contracts, Cumulative Paid Claims and Allocated Claim Adjustment Expense, Net	$ 66,424	64,817		64,274	34,768	62,133	57,041	$ 38,428
Property and Casualty, Personal Insurance Product Line | 'Short-Duration Insurance Contract, Accident Year 2020
Liability for Claims and Claims Adjustment Expense [Line Items]
Short-duration Insurance Contracts, Incurred Claims and Allocated Claim Adjustment Expense, Net	91,574	88,589	64,055		45,611	50,622	71,816
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	$ (932)
Short-duration Insurance Contract, Cumulative Number of Reported Claims | Claim	4,667
Short-Duration Insurance Contracts, Cumulative Paid Claims and Allocated Claim Adjustment Expense, Net	$ 91,085	87,433		84,525	79,570	56,201	$ 33,532
Property and Casualty, Personal Insurance Product Line | Short-Duration Insurance Contract, Accident Year 2021
Liability for Claims and Claims Adjustment Expense [Line Items]
Short-duration Insurance Contracts, Incurred Claims and Allocated Claim Adjustment Expense, Net	32,615	31,737	58,459		65,061	71,731
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	$ 1,580
Short-duration Insurance Contract, Cumulative Number of Reported Claims | Claim	1,804
Short-duration Insurance Contracts, Liability for Unpaid Claims and Allocated Claim Adjustment Expense, Net	$ 32,476	35,492		32,033	28,506	$ 19,754
Property and Casualty, Personal Insurance Product Line | 'Short-Duration Insurance Contract, Accident Year 2022
Liability for Claims and Claims Adjustment Expense [Line Items]
Short-duration Insurance Contracts, Incurred Claims and Allocated Claim Adjustment Expense, Net	76,098	77,959	43,625		45,365
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	$ 5,542
Short-duration Insurance Contract, Cumulative Number of Reported Claims | Claim	1,538
Short-Duration Insurance Contracts, Cumulative Paid Claims and Allocated Claim Adjustment Expense, Net	$ 69,371	64,360		51,748	$ 16,645
Property and Casualty, Personal Insurance Product Line | 'Short-Duration Insurance Contract, Accident Year 2023
Liability for Claims and Claims Adjustment Expense [Line Items]
Short-duration Insurance Contracts, Incurred Claims and Allocated Claim Adjustment Expense, Net	17,858	20,813	$ 20,038
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	$ 2,727
Short-duration Insurance Contract, Cumulative Number of Reported Claims | Claim	379
Short-Duration Insurance Contracts, Cumulative Paid Claims and Allocated Claim Adjustment Expense, Net	$ 14,855	13,557		$ 8,993
Property and Casualty, Personal Insurance Product Line | 'Short-Duration Insurance Contract, Accident Year 2024
Liability for Claims and Claims Adjustment Expense [Line Items]
Short-duration Insurance Contracts, Incurred Claims and Allocated Claim Adjustment Expense, Net	28,392	33,727
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	$ 5,164
Short-duration Insurance Contract, Cumulative Number of Reported Claims | Claim	457
Short-Duration Insurance Contracts, Cumulative Paid Claims and Allocated Claim Adjustment Expense, Net	$ 21,843	$ 8,893
Property and Casualty, Personal Insurance Product Line | 'Short-Duration Insurance Contract, Accident Year 2025
Liability for Claims and Claims Adjustment Expense [Line Items]
Short-duration Insurance Contracts, Incurred Claims and Allocated Claim Adjustment Expense, Net	17,610
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	$ 10,723
Short-duration Insurance Contract, Cumulative Number of Reported Claims | Claim	247
Short-Duration Insurance Contracts, Cumulative Paid Claims and Allocated Claim Adjustment Expense, Net	$ 6,052