Equity Transactions (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Equity [Abstract]
Cash dividends declared per common share (in dollars per share)	$ 2.40	$ 2.25	$ 4.80	$ 4.50
Stock repurchased during period, shares (in shares)	70,097		143,560
Weighted average price (in dollars per share)	$ 142.63		$ 139.28
Stock repurchased during period, value	$ 10.5		$ 20.5
Shares available for repurchase (in shares)	662,388		662,388