CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Millions	Jun. 30, 2023	Jun. 30, 2022
Current assets:
Allowance for doubtful accounts	$ 7.4	$ 5.4
STOCKHOLDERS' EQUITY
Common stock, authorized shares (in shares)	100,000,000	100,000,000
Common stock, issued shares (in shares)	56,143,131	56,025,510
Common stock, outstanding shares (in shares)	48,635,740	48,286,439
Common stock in treasury, shares (in shares)	7,507,391	7,739,071