CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (UNAUDITED) (Parenthetical)	3 Months Ended				6 Months Ended
	Jun. 30, 2026 participant $ / shares	Mar. 31, 2026 $ / shares	Jun. 30, 2025 participant $ / shares	Mar. 31, 2025 $ / shares	Jun. 30, 2026 participant $ / shares	Jun. 30, 2025 participant $ / shares
Number of outside director stock compensation plan participants | participant	1				1
Number of incentive compensation deferral plan participants | participant	4		3		4	3
Class A common stock
Dividends declared (in dollars per share) | $ / shares	$ 1.4625	$ 1.4625	$ 1.365	$ 1.365	$ 2.925	$ 2.73
Class B common stock
Dividends declared (in dollars per share) | $ / shares	$ 219.375	$ 219.375	$ 204.75	$ 204.75	$ 438.75	$ 409.50