Unpaid Loss and Loss Adjustment Expense - Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Unusual or Infrequent Item, or Both [Line Items]
Favorable development on net loss and LAE reserves	$ (10.0)	$ (5.8)	$ (3.2)
Current accident year incurred loss and LAE	287.0	286.2	$ 170.5
Hurricane Helene
Unusual or Infrequent Item, or Both [Line Items]
Current accident year incurred loss and LAE	3.5
Hurricane Beryl
Unusual or Infrequent Item, or Both [Line Items]
Current accident year incurred loss and LAE	$ 4.0
Winter Storm Elliot
Unusual or Infrequent Item, or Both [Line Items]
Current accident year incurred loss and LAE		10.4
Texas Hail Storm
Unusual or Infrequent Item, or Both [Line Items]
Current accident year incurred loss and LAE		$ 4.2