CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Operating revenue
Total operating revenue	$ 3,795,115	$ 3,268,940	$ 2,840,124
Operating expenses
Total operating expenses	3,118,660	2,748,684	2,463,910
Operating income	676,455	520,256	376,214
Investment income
Net investment income	70,155	44,572	28,585
Net realized and unrealized investment gains (losses)	3,229	(5,838)	(27,286)
Net impairment losses recognized in earnings	(4,124)	(9,766)	(667)
Total investment income	69,260	28,968	632
Interest expense, net	0	0	2,009
Other income	11,564	12,712	1,615
Income before income taxes	757,279	561,936	376,452
Income tax expense	156,965	115,875	77,883
Net income	$ 600,314	$ 446,061	$ 298,569
Class A common stock
Earnings per share - Basic and diluted:
Common stock - basic (in dollars per share)	$ 12.89	$ 9.58	$ 6.41
Common stock - diluted (in dollars per share)	$ 11.48	$ 8.53	$ 5.71
Weighted average shares outstanding – Basic
Common stock - basic (in shares)	46,189,044	46,188,981	46,188,916
Weighted average shares outstanding – Diluted
Common stock - diluted (in shares)	52,306,266	52,299,411	52,297,990
Class B common stock
Earnings per share - Basic and diluted:
Common stock - basic (in dollars per share)	$ 1,934	$ 1,437	$ 962
Common stock - diluted (in dollars per share)	$ 1,933	$ 1,437	$ 962
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	$ 2,894,074	$ 2,442,073	$ 2,087,846
Operating expenses
Total operating expenses	2,312,324	2,011,545	1,795,642
Management fee revenue - administrative services
Operating revenue
Total operating revenue	68,355	63,669	58,323
Administrative services reimbursement revenue
Operating revenue
Total operating revenue	806,336	737,139	668,268
Operating expenses
Total operating expenses	806,336	737,139	668,268
Service agreement revenue
Operating revenue
Total operating revenue	$ 26,350	$ 26,059	$ 25,687