CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (UNAUDITED) (Parenthetical)	3 Months Ended						9 Months Ended
	Sep. 30, 2025 participant $ / shares	Jun. 30, 2025 $ / shares	Mar. 31, 2025 $ / shares	Sep. 30, 2024 participant $ / shares	Jun. 30, 2024 $ / shares	Mar. 31, 2024 $ / shares	Sep. 30, 2025 participant $ / shares	Sep. 30, 2024 participant $ / shares
Number of incentive compensation deferral plan participants | participant	3			5			3	5
Class A common stock
Dividends declared (in dollars per share)	$ 1.365	$ 1.365	$ 1.365	$ 1.275	$ 1.275	$ 1.275	$ 4.095	$ 3.825
Class B common stock
Dividends declared (in dollars per share)	$ 204.75	$ 204.75	$ 204.75	$ 191.25	$ 191.25	$ 191.25	$ 614.25	$ 573.75