Consolidated Statements Of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Revenues:
Net premiums earned	$ 915,922	$ 922,574
Net investment income	32,279	34,495
Net realized investment gains (losses)	41,691	(251,320)
Other	3,204	2,562
Total revenues	993,096	708,311
Expenses:
Losses and loss adjustment expenses	626,344	651,670
Policy acquisition costs	164,430	156,533
Other operating expenses	65,558	76,557
Interest	4,343	4,256
Total expenses	860,675	889,016
Income (loss) before income taxes	132,421	(180,705)
Income tax expense (benefit)	25,426	(41,501)
Net income (loss)	$ 106,995	$ (139,204)
Net income (loss) per share:
Basic (in dollars per share)	$ 1.93	$ (2.51)
Diluted (in dollars per share)	$ 1.93	$ (2.51)
Weighted average shares outstanding:
Basic (in shares)	55,361	55,358
Diluted (in shares)	55,372	55,358