Consolidated Balance Sheets (Parentheticals) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Allowance For Bad Debt	$ 20,103	$ 22,427
Preferred stock - par value per share	$ 0.01	$ 0.01
Preferred stock - authorized shares	10,000,000	10,000,000
Common Stock, Par or Stated Value Per Share	$ 0.01	$ 0.01
Common stock - authorized shares	125,000,000	125,000,000
Common stock - issued shares	44,786,011	44,786,011
Common stock - outstanding shares	21,526,172	22,139,009
Treasury Stock, Common, Shares	23,259,839	22,647,002