STATEMENTS OF OPERATIONS (UNAUDITED) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Operating revenue
Total operating revenue	$ 990,438	$ 839,870	$ 1,871,139	$ 1,592,335
Operating expenses
Total operating expenses	800,230	705,712	1,542,119	1,347,634
Operating income	190,208	134,158	329,020	244,701
Investment income
Net investment income	16,010	13,535	31,913	15,718
Net realized and unrealized investment (losses) gains	(1,795)	(1,737)	58	(7,019)
Net impairment losses recognized in earnings	(388)	(171)	(3,065)	(1,804)
Total investment income	13,827	11,627	28,906	6,895
Other income	3,292	3,305	6,703	6,642
Income before income taxes	207,327	149,090	364,629	258,238
Income tax expense	43,424	31,238	76,174	54,145
Net income	$ 163,903	$ 117,852	$ 288,455	$ 204,093
Class A common stock
Earnings per share - Basic and diluted:
Common stock - basic (in dollars per share)	$ 3.52	$ 2.53	$ 6.19	$ 4.38
Common stock - diluted (in dollars per share)	$ 3.13	$ 2.25	$ 5.52	$ 3.90
Weighted average shares outstanding – Basic
Common stock - basic (in shares)	46,189,042	46,189,026	46,189,028	46,188,923
Weighted average shares outstanding – Diluted
Common stock - diluted (in shares)	52,305,299	52,299,974	52,303,551	52,298,298
Dividends declared per share
Dividends declared (in dollars per share)	$ 1.275	$ 1.19	$ 2.55	$ 2.38
Class B common stock
Earnings per share - Basic and diluted:
Common stock - basic (in dollars per share)	528	380	929	657
Common stock - diluted (in dollars per share)	$ 528	$ 380	$ 929	$ 657
Weighted average shares outstanding – Basic
Common stock - basic (in shares)	2,542	2,542	2,542	2,542
Weighted average shares outstanding – Diluted
Common stock - diluted (in shares)	2,542	2,542	2,542	2,542
Dividends declared per share
Dividends declared (in dollars per share)	$ 191.25	$ 178.50	$ 382.50	$ 357.00
Management fee revenue - policy issuance and renewal services
Operating revenue
Total operating revenue	$ 760,886	$ 633,339	$ 1,426,572	$ 1,191,429
Operating expenses
Total operating expenses	594,202	521,246	1,144,524	990,341
Management fee revenue - administrative services
Operating revenue
Total operating revenue	17,051	15,636	33,985	30,825
Administrative services reimbursement revenue
Operating revenue
Total operating revenue	206,028	184,466	397,595	357,293
Operating expenses
Total operating expenses	206,028	184,466	397,595	357,293
Service agreement revenue
Operating revenue
Total operating revenue	$ 6,473	$ 6,429	$ 12,987	$ 12,788