Consolidated Statements Of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Revenues:
Net premiums earned	$ 987,512	$ 926,820	$ 1,950,062	$ 1,842,741
Net investment income	38,555	30,953	73,906	63,232
Net realized investment (losses) gains	(241,938)	58,805	(437,024)	100,496
Other	1,496	2,197	4,142	5,402
Total revenues	785,625	1,018,775	1,591,086	2,011,871
Expenses:
Losses and loss adjustment expenses	826,779	657,228	1,648,713	1,283,572
Policy acquisition costs	156,482	150,984	318,574	315,414
Other operating expenses	69,430	70,927	139,720	136,485
Interest	4,274	4,235	8,548	8,577
Total expenses	1,056,965	883,374	2,115,555	1,744,048
(Loss) income before income taxes	(271,340)	135,401	(524,469)	267,823
Income tax (benefit) expense	(60,659)	26,220	(116,870)	51,647
Net (loss) income	$ (210,681)	$ 109,181	$ (407,599)	$ 216,176
Net (loss) income per share:
Basic (in dollars per share)	$ (3.80)	$ 1.97	$ (7.36)	$ 3.90
Diluted (in dollars per share)	$ (3.80)	$ 1.97	$ (7.36)	$ 3.90
Weighted average shares outstanding:
Basic (in shares)	55,371	55,371	55,371	55,366
Diluted (in shares)	55,371	55,376	55,371	55,375