Unpaid Loss and Loss Adjustment Expense - Additional Information (Details) - USD ($) $ in Millions	1 Months Ended	12 Months Ended
	Mar. 31, 2025	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Unusual or Infrequent Item, or Both [Line Items]
Favorable development on net loss and LAE reserves		$ (30.4)	$ (10.0)	$ (5.8)
Current accident year incurred loss and LAE		377.4	287.0	286.2
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
California Wildfires
Unusual or Infrequent Item, or Both [Line Items]
Current accident year incurred loss and LAE		$ 19.6
Liability for unpaid claims and claims adjustment expense, period increase (decrease)	$ 4.2