Statutory Information - Statutory financial information of insurance subsidiaries (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Statutory Capital [Abstract]
Statutory net income	$ 735,093	$ 1,112,477	$ 279,145
Statutory policyholders' surplus	894,278	976,756	639,878
Contingency reserve	$ 4,914,234	$ 4,897,284	$ 5,199,405