STATEMENTS OF OPERATIONS (UNAUDITED) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Operating revenue
Total operating revenue	$ 672,110	$ 630,177
Operating expenses
Total operating expenses	587,798	554,082
Operating income	84,312	76,095
Investment income
Net investment income	10,504	17,097
Net realized and unrealized investment (losses) gains	(7,279)	804
Net impairment (losses) recoveries recognized in earnings	(216)	87
Total investment income	3,009	17,988
Interest expense	999	1,009
Other income (expense)	473	(519)
Income before income taxes	86,795	92,555
Income tax expense	18,176	18,989
Net income	$ 68,619	$ 73,566
Class A common stock
Earnings per share - Basic and diluted:
Common stock - basic (in dollars per share)	$ 1.47	$ 1.58
Common stock - diluted (in dollars per share)	$ 1.31	$ 1.41
Weighted average shares outstanding – Basic
Common stock - basic (in shares)	46,188,761	46,188,860
Weighted average shares outstanding – Diluted
Common stock - diluted (in shares)	52,300,501	52,315,958
Dividends declared per share
Dividends declared (in dollars per share)	$ 1.11	$ 1.035
Class B common stock
Earnings per share - Basic and diluted:
Common stock - basic (in dollars per share)	221	237
Common stock - diluted (in dollars per share)	$ 221	$ 237
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)	$ 166.50	$ 155.25
Management fee revenue - policy issuance and renewal services
Operating revenue
Total operating revenue	$ 487,992	$ 455,718
Operating expenses
Total operating expenses	424,471	400,549
Management fee revenue - administrative services
Operating revenue
Total operating revenue	14,313	14,847
Administrative services reimbursement revenue
Operating revenue
Total operating revenue	163,327	153,533
Operating expenses
Total operating expenses	163,327	153,533
Service agreement revenue
Operating revenue
Total operating revenue	$ 6,478	$ 6,079