Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Consolidated Balance Sheets [Abstract]
Trade receivables, allowances	$ 15.2	$ 13.6
Intangible assets, accumulated amortization	$ 62.1	$ 38.0
Common stock, stated value per share	$ 20.00	$ 20.00
Authorized	50,000,000	50,000,000
Issued to voting trustees	26,656,527	26,614,542
Issued to shareholders	5,533,939	5,518,543
In treasury, at cost	(57,751)	(69,174)
Outstanding Common Stock	32,132,715	32,063,911
Common shares subscribed	1,356,281	1,347,781
Less subscription receivable	(1,356,281)	(1,347,781)