Nature of Business and Basis of Presentation (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Nature of Business and Basis of Presentation
Direct written premiums (percent)	98.00%	96.30%	98.10%	95.60%