CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
CONSOLIDATED BALANCE SHEETS
Accounts receivable, allowances (in dollars)	$ 11,585	$ 13,892
Other accounts receivable, allowances (in dollars)	$ 721	$ 713
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	29,808,628	29,758,716
Treasury stock, at cost, shares	5,683,472	5,529,383