Capital Stock and Equity Compensation (Stockholders Equity) (Details) - USD ($) $ / shares in Units, $ in Millions	1 Months Ended
	Dec. 31, 2024	Apr. 30, 2024	Mar. 31, 2024
Share-Based Payment Arrangement [Abstract]
Share repurchases (in shares)	116,045	70,893	1,500
Treasury stock average cost (in dollars per share)	$ 103.58	$ 108.79	$ 109.92
Treasury stock acquired, publicly announced plans or programs (in shares)	116,045	70,893	1,500
Approximate Dollar Value of Shares that May Yet be Purchased under the Plans or Programs	$ 104.2	$ 116.2	$ 23.8