Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Revenues
Net premiums earned (Note 8)	$ 236,679	$ 235,857
Services revenue (Note 4)	12,116	12,588
Net investment income (Note 6)	68,574	69,221
Net gains (losses) on investments and other financial instruments (includes net realized gains (losses) on investments of $(1,434) and $(3,682)) (Note 6)	(723)	490
Income (loss) on consolidated VIEs (Note 7)	428	0
Other income	1,040	1,262
Total revenues	318,114	319,418
Expenses
Provision for losses	15,167	(7,034)
Policy acquisition costs	6,388	6,794
Cost of services	8,771	9,327
Other operating expenses	76,849	82,636
Interest expense (Note 12)	22,499	29,046
Total expenses	129,674	120,769
Pretax income	188,440	198,649
Income tax provision	43,882	46,295
Net income	$ 144,558	$ 152,354
Net income per share
Basic (in usd per share)	$ 0.99	$ 0.99
Diluted (in usd per share)	$ 0.98	$ 0.98
Weighted average number of common shares outstanding—basic (in shares)	145,618	153,817
Weighted average number of common and common equivalent shares outstanding—diluted (in shares)	147,727	155,971