Related Party Transactions (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Related Party Transaction [Line Items]
Ceded written premiums	$ 304,619	$ 244,295	$ 173,016
Net written premiums	558,187	451,422	334,672
Related Party
Related Party Transaction [Line Items]
Ceded written premiums	34,700	28,000	18,000
Related Party | Ceding Fees
Related Party Transaction [Line Items]
Related party transaction, amounts of transaction	$ 13,300	8,600	5,800
Related Party | AmFam
Related Party Transaction [Line Items]
Quota share agreement, percentage	100.00%
BIHL | Related Party
Related Party Transaction [Line Items]
Capital contribution from parent, accumulated contributions	$ 183,300
Bowhead Insurance Holdings LP (BIHL) | Related Party
Related Party Transaction [Line Items]
Capital contribution from parent, contributed amount	0	4,500	77,700
AmFam | Related Party
Related Party Transaction [Line Items]
Ceded written premiums	34,700	$ 28,000	$ 18,000
Net written premiums	100
Bold Penguin | Related Party
Related Party Transaction [Line Items]
Related party transaction, amounts of transaction	$ 100