CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
CONSOLIDATED BALANCE SHEETS
Accounts receivable, allowances (in dollars)	$ 8,788	$ 10,346
Other accounts receivable, allowances (in dollars)	$ 654	$ 731
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, authorized shares	70,000,000	70,000,000
Common stock, issued shares	30,399,853	30,024,125
Treasury stock, at cost, shares	6,711,805	6,460,137