Equity Transactions (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Equity [Abstract]
Cash dividends declared per common share (in dollars per share)	$ 2.25	$ 1.90	$ 6.05	$ 5.20
Stock repurchased during period, shares (in shares)	72,850		149,057
Weighted average price (in dollars per share)	$ 204.07		$ 217.12
Stock repurchased during period, value	$ 14.9		$ 32.4
Shares available for repurchase (in shares)	455,488		455,488