STATEMENTS OF OPERATIONS (UNAUDITED) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Operating revenue
Operating revenue	$ 630,177	$ 616,737
Operating expenses
Operating expenses	554,082	531,046
Operating income	76,095	85,691
Investment income
Net investment income	17,097	4,664
Net realized investment gains (losses)	804	(10,806)
Net impairment recoveries (losses) recognized in earnings	87	(3,053)
Total investment income (loss)	17,988	(9,195)
Interest expense, net	1,009	3
Other expense	519	366
Income before income taxes	92,555	76,127
Income tax expense	18,989	16,801
Net income	$ 73,566	$ 59,326
Class A common stock
Earnings per share - Basic and diluted:
Common stock - basic (in dollars per share)	$ 1.58	$ 1.27
Common stock - diluted (in dollars per share)	$ 1.41	$ 1.13
Weighted average shares outstanding – Basic
Common stock - basic (in shares)	46,188,860	46,188,789
Weighted average shares outstanding – Diluted
Common stock - diluted (in shares)	52,315,958	52,324,350
Dividends declared per share
Common stock (in dollars per share)	$ 1.035	$ 0.965
Class B common stock
Earnings per share - Basic and diluted:
Common stock - basic (in dollars per share)	237	191
Common stock - diluted (in dollars per share)	$ 237	$ 191
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
Common stock (in dollars per share)	$ 155.25	$ 144.75
Management fee revenue - policy issuance and renewal services, net
Operating revenue
Operating revenue	$ 455,718	$ 443,750
Operating expenses
Operating expenses	400,549	379,492
Management fee revenue - administrative services, net
Operating revenue
Operating revenue	14,847	14,771
Administrative services reimbursement revenue
Operating revenue
Operating revenue	153,533	151,554
Operating expenses
Operating expenses	153,533	151,554
Service agreement revenue
Operating revenue
Operating revenue	$ 6,079	$ 6,662