Equity Transactions (Details) - USD ($) $ / shares in Units, $ in Millions		3 Months Ended		6 Months Ended
	May 15, 2024	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Equity [Abstract]
Cash dividends declared per common share (in dollars per share)	$ 1.90	$ 1.90	$ 1.65	$ 3.80	$ 3.30
Stock repurchased during period, shares		55,099		76,207
Weighted average price (in dollars per share)		$ 226.83		$ 229.60
Stock repurchased during period, value		$ 12.5		$ 17.5
Shares available for repurchase (in shares)		528,338		528,338