STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Operating revenue
Total operating revenue	$ 3,268,940	$ 2,840,124	$ 2,633,977
Operating expenses
Total operating expenses	2,748,684	2,463,910	2,315,880
Operating income	520,256	376,214	318,097
Investment income
Net investment income	44,572	28,585	62,177
Net realized and unrealized investment (losses) gains	(5,838)	(27,286)	4,946
Net impairment (losses) recoveries recognized in earnings	(9,766)	(667)	209
Total investment income	28,968	632	67,332
Interest expense, net	0	2,009	4,132
Other income (expense)	12,712	1,615	(4,893)
Income before income taxes	561,936	376,452	376,404
Income tax expense	115,875	77,883	78,544
Net income	$ 446,061	$ 298,569	$ 297,860
Class A common stock
Earnings per share - Basic and diluted:
Common stock - basic (in dollars per share)	$ 9.58	$ 6.41	$ 6.40
Common stock - diluted (in dollars per share)	$ 8.53	$ 5.71	$ 5.69
Weighted average shares outstanding – Basic
Common stock - basic (in shares)	46,188,981	46,188,916	46,188,806
Weighted average shares outstanding – Diluted
Common stock - diluted (in shares)	52,299,411	52,297,990	52,307,302
Class B common stock
Earnings per share - Basic and diluted:
Common stock - basic (in dollars per share)	$ 1,437	$ 962	$ 959
Common stock - diluted (in dollars per share)	$ 1,437	$ 962	$ 959
Weighted average shares outstanding – Basic
Common stock - basic (in shares)	2,542	2,542	2,542
Weighted average shares outstanding – Diluted
Common stock - diluted (in shares)	2,542	2,542	2,542
Management fee revenue - policy issuance and renewal services
Operating revenue
Total operating revenue	$ 2,442,073	$ 2,087,846	$ 1,913,166
Operating expenses
Total operating expenses	2,011,545	1,795,642	1,677,397
Management fee revenue - administrative services
Operating revenue
Total operating revenue	63,669	58,323	58,286
Administrative services reimbursement revenue
Operating revenue
Total operating revenue	737,139	668,268	638,483
Operating expenses
Total operating expenses	737,139	668,268	638,483
Service agreement revenue
Operating revenue
Total operating revenue	$ 26,059	$ 25,687	$ 24,042