CONSOLIDATED STATEMENTS OF OPERATIONS (UNAUDITED) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Operating revenue
Total operating revenue	$ 989,399	$ 880,701
Operating expenses
Total operating expenses	838,023	741,889
Operating income	151,376	138,812
Investment income
Net investment income	19,948	15,903
Net realized and unrealized investment gains	502	1,853
Net impairment losses recognized in earnings	(914)	(2,677)
Total investment income	19,536	15,079
Other income	3,834	3,411
Income before income taxes	174,746	157,302
Income tax expense	36,329	32,750
Net income	$ 138,417	$ 124,552
Class A common stock
Earnings per share - Basic and diluted:
Common stock - basic (in dollars per share)	$ 2.97	$ 2.67
Common stock - diluted (in dollars per share)	$ 2.65	$ 2.38
Weighted average shares outstanding – Basic
Common stock - basic (in shares)	46,188,903	46,189,014
Weighted average shares outstanding – Diluted
Common stock - diluted (in shares)	52,304,384	52,301,803
Dividends declared per share
Dividends declared (in dollars per share)	$ 1.365	$ 1.275
Class B common stock
Earnings per share - Basic and diluted:
Common stock - basic (in dollars per share)	446	401
Common stock - diluted (in dollars per share)	$ 446	$ 401
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)	$ 204.75	$ 191.25
Management fee revenue - policy issuance and renewal services
Operating revenue
Total operating revenue	$ 755,049	$ 665,686
Operating expenses
Total operating expenses	627,750	550,322
Management fee revenue - administrative services
Operating revenue
Total operating revenue	17,645	16,934
Administrative services reimbursement revenue
Operating revenue
Total operating revenue	210,273	191,567
Operating expenses
Total operating expenses	210,273	191,567
Service agreement revenue
Operating revenue
Total operating revenue	$ 6,432	$ 6,514