CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Accounts receivable, allowances	$ 12,800	$ 12,260
Common stock, par value (in USD per share)	$ 0.10	$ 0.10
Class A Common Stock
Authorized shares (in shares)	300,000,000	300,000,000
Issued shares (in shares)	176,951,162	176,288,596
Treasury shares (in shares)	13,189,925	12,004,865
Class B Common Stock
Authorized shares (in shares)	780,724	780,724
Issued shares (in shares)	780,724	780,724
Treasury shares (in shares)	0	0