Consolidated Statements Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
REVENUES:
Net premiums written	$ 3,057,276	$ 2,848,459	$ 9,035,346	$ 8,234,799
Change in net unearned premiums	(130,453)	(206,545)	(497,761)	(548,726)
Net premiums earned	2,926,823	2,641,914	8,537,585	7,686,073
Net investment income	323,756	270,944	1,015,723	739,494
Net realized and unrealized (losses) gains on investments	(23,362)	(40,855)	(72,165)	50,403
Change in allowance for expected credit losses on investments	15,276	(1,571)	31,347	(11,164)
Net investment (losses) gains	(8,086)	(42,426)	(40,818)	39,239
Revenues from non-insurance businesses	128,610	137,116	375,307	375,225
Insurance service fees	28,666	22,962	81,583	81,290
Other income	610	128	1,804	235
Total revenues	3,400,379	3,030,638	9,971,184	8,921,556
OPERATING COSTS AND EXPENSES:
Losses and loss expenses	1,825,960	1,636,193	5,270,334	4,744,602
Other operating costs and expenses	943,365	808,669	2,704,890	2,457,925
Expenses from non-insurance businesses	124,885	133,939	364,612	370,244
Interest expense	31,720	31,888	95,156	95,580
Total operating costs and expenses	2,925,930	2,610,689	8,434,992	7,668,351
Income before income taxes	474,449	419,949	1,536,192	1,253,205
Income tax expense	(109,135)	(86,519)	(356,958)	(268,322)
Net income before noncontrolling interests	365,314	333,430	1,179,234	984,883
Noncontrolling interests	320	156	780	(863)
Net income to common stockholders	$ 365,634	$ 333,586	$ 1,180,014	$ 984,020
NET INCOME PER SHARE:
Basic (in dollar per share)	$ 0.92	$ 0.83	$ 2.95	$ 2.41
Diluted (in dollar per share)	$ 0.91	$ 0.82	$ 2.92	$ 2.39