Reinsurance - Written and Earned Premiums (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Written Premiums
Direct	$ 1,278,605	$ 1,193,057	$ 991,224
Assumed	23,765	20,279	30,850
Ceded	(126,733)	(119,931)	(96,779)
Net written premiums	1,175,637	1,093,405	925,295
Earned Premiums
Direct	1,244,722	1,102,695	897,598
Assumed	22,760	18,874	29,702
Ceded	(128,471)	(110,865)	(92,886)
Net earned premiums	1,139,011	1,010,704	834,414
Loss and LAE
Direct	861,713	786,819	691,768
Assumed	16,272	11,136	23,706
Ceded	(80,803)	(81,318)	(73,172)
Net loss and LAE	$ 797,182	$ 716,637	$ 642,302