CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($)	Sep. 30, 2022	Dec. 31, 2021
Statement of Financial Position [Abstract]
Allowance for doubtful accounts on accounts receivable	$ 564,000	$ 568,000
Preferred stock, par value	$ 1	$ 1
Preferred stock, shares authorized	10,000,000	10,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	475,000,000	475,000,000
Common stock, shares issued	262,886,690	259,795,554
Common stock held in treasury, shares	20,603,035	10,002,646