CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
CONSOLIDATED BALANCE SHEETS
Accounts receivable, allowances	$ 16.4	$ 15.2
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized	10,000,000	10,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized	50,000,000	50,000,000
Common stock, shares issued	17,702,476	17,584,057
Common stock, shares outstanding	15,421,481	15,763,341
Treasury stock, shares	2,280,995	1,820,716