Property and Casualty Insurance Activity - Schedule of Cumulative Paid Loss and Allocated Loss Adjustment Expenses, Net of Reinsurance (Details) $ in Thousands	Mar. 31, 2026 USD ($)
Liability for Claims and Claims Adjustment Expense [Line Items]
Total	$ 543,212
Net liability for unpaid loss and allocated loss adjustment expenses for the accident years presented	118,579
All outstanding liabilities before 2017, net of reinsurance	1,716
Liabilities for loss and allocated loss adjustment expenses, net of reinsurance	120,295
2017
Liability for Claims and Claims Adjustment Expense [Line Items]
2017	16,704
2018
Liability for Claims and Claims Adjustment Expense [Line Items]
2017	24,820
2018	32,383
2019
Liability for Claims and Claims Adjustment Expense [Line Items]
2017	28,693
2018	44,516
2019	40,933
2020
Liability for Claims and Claims Adjustment Expense [Line Items]
2017	31,393
2018	50,553
2019	54,897
2020	39,045
2021
Liability for Claims and Claims Adjustment Expense [Line Items]
2017	32,529
2018	52,025
2019	58,055
2020	50,719
2021	56,282
2022
Liability for Claims and Claims Adjustment Expense [Line Items]
2017	33,522
2018	54,424
2019	60,374
2020	53,432
2021	77,756
2022	45,856
2023
Liability for Claims and Claims Adjustment Expense [Line Items]
2017	34,683
2018	56,199
2019	63,932
2020	56,523
2021	82,317
2022	65,732
2023	46,280
2024
Liability for Claims and Claims Adjustment Expense [Line Items]
2017	35,046
2018	57,185
2019	66,109
2020	59,220
2021	85,314
2022	68,170
2023	56,952
2024	29,013
2025
Liability for Claims and Claims Adjustment Expense [Line Items]
2017	35,336
2018	57,798
2019	68,648
2020	60,859
2021	90,865
2022	70,703
2023	59,571
2024	40,086
2025	36,572
2026
Liability for Claims and Claims Adjustment Expense [Line Items]
2017	35,352
2018	58,611
2019	69,614
2020	60,987
2021	92,199
2022	71,358
2023	59,783
2024	40,857
2025	44,280
2026	$ 10,171