Consolidated Statements Of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Revenues:
Net premiums earned	$ 996,939	$ 940,941	$ 2,947,000	$ 2,783,682
Net investment income	44,563	32,334	118,469	95,566
Net realized investment (losses) gains	(144,213)	(43,543)	(581,237)	56,953
Other	2,998	2,481	7,141	7,883
Total revenues	900,287	932,213	2,491,373	2,944,084
Expenses:
Losses and loss adjustment expenses	787,462	697,947	2,436,175	1,981,519
Policy acquisition costs	168,870	153,142	487,444	468,556
Other operating expenses	68,585	80,238	208,305	216,723
Interest	4,273	4,267	12,822	12,845
Total expenses	1,029,190	935,594	3,144,746	2,679,643
(Loss) income before income taxes	(128,903)	(3,381)	(653,373)	264,441
Income tax (benefit) expense	(30,600)	(4,669)	(147,471)	46,977
Net (loss) income	$ (98,303)	$ 1,288	$ (505,902)	$ 217,464
Net (loss) income per share:
Basic (in dollars per share)	$ (1.78)	$ 0.02	$ (9.14)	$ 3.93
Diluted (in dollars per share)	$ (1.78)	$ 0.02	$ (9.14)	$ 3.93
Weighted average shares outstanding:
Basic (in shares)	55,371	55,371	55,371	55,367
Diluted (in shares)	55,371	55,375	55,371	55,375