Unpaid Losses and Loss Adjustment Expenses - Narrative (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Liability for Claims and Claims Adjustment Expense [Line Items]
Decrease in losses and loss adjustment expenses	$ (3,000,000)
Decrease in losses and loss adjustment expenses, percentage	13.20%
Losses and loss adjustment expenses, net	$ 19,319,000	$ 22,251,000	$ 33,032,000	$ 40,269,000
Prior year adjustments	522,000	9,524,000	(691,000)	15,045,000
Loss Portfolio Transfer (LPT) | Minimum
Liability for Claims and Claims Adjustment Expense [Line Items]
Prior year adjustments			4,600,000
Loss Portfolio Transfer (LPT) | Maximum
Liability for Claims and Claims Adjustment Expense [Line Items]
Prior year adjustments			$ 20,000,000
Commercial Line
Liability for Claims and Claims Adjustment Expense [Line Items]
Losses and loss adjustment expenses, net	1,000,000
Personal Line
Liability for Claims and Claims Adjustment Expense [Line Items]
Losses and loss adjustment expenses, net	4,500,000
Accident Year 2019
Liability for Claims and Claims Adjustment Expense [Line Items]
Prior year adjustments		3,600,000		4,900,000
Accident Year 2019 | Loss Portfolio Transfer (LPT)
Liability for Claims and Claims Adjustment Expense [Line Items]
Prior year adjustments	2,200,000
Accident Year 2022 | Personal Line
Liability for Claims and Claims Adjustment Expense [Line Items]
Prior year adjustments	$ 411,000
Accident Year 2020
Liability for Claims and Claims Adjustment Expense [Line Items]
Prior year adjustments		1,600,000		3,100,000
Accident Year 2018
Liability for Claims and Claims Adjustment Expense [Line Items]
Prior year adjustments		$ 4,300,000		$ 7,100,000