STATEMENTS OF OPERATIONS (UNAUDITED) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Operating revenue
Total operating revenue	$ 880,701	$ 752,465
Operating expenses
Total operating expenses	741,889	641,922
Operating income	138,812	110,543
Investment income
Net investment income	15,903	2,183
Net realized and unrealized investment gains (losses)	1,853	(5,282)
Net impairment losses recognized in earnings	(2,677)	(1,633)
Total investment income (loss)	15,079	(4,732)
Other income	3,411	3,337
Income before income taxes	157,302	109,148
Income tax expense	32,750	22,907
Net income	$ 124,552	$ 86,241
Class A common stock
Earnings per share - Basic and diluted:
Common stock - basic (in dollars per share)	$ 2.67	$ 1.85
Common stock - diluted (in dollars per share)	$ 2.38	$ 1.65
Weighted average shares outstanding – Basic
Common stock - basic (in shares)	46,189,014	46,188,819
Weighted average shares outstanding – Diluted
Common stock - diluted (in shares)	52,301,803	52,296,621
Dividends declared per share
Dividends declared (in dollars per share)	$ 1.275	$ 1.19
Class B common stock
Earnings per share - Basic and diluted:
Common stock - basic (in dollars per share)	401	278
Common stock - diluted (in dollars per share)	$ 401	$ 278
Weighted average shares outstanding – Basic
Common stock - basic (in shares)	2,542	2,542
Weighted average shares outstanding – Diluted
Common stock - diluted (in shares)	2,542	2,542
Dividends declared per share
Dividends declared (in dollars per share)	$ 191.25	$ 178.50
Management fee revenue - policy issuance and renewal services
Operating revenue
Total operating revenue	$ 665,686	$ 558,090
Operating expenses
Total operating expenses	550,322	469,095
Management fee revenue - administrative services
Operating revenue
Total operating revenue	16,934	15,189
Administrative services reimbursement revenue
Operating revenue
Total operating revenue	191,567	172,827
Operating expenses
Total operating expenses	191,567	172,827
Service agreement revenue
Operating revenue
Total operating revenue	$ 6,514	$ 6,359