CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares shares in Thousands	Dec. 31, 2021	Dec. 31, 2020
Statement Of Financial Position [Abstract]
Preferred stock, par value	$ 0	$ 0
Preferred stock, shares authorized	5,000	5,000
Preferred stock, shares issued	0	0
Common stock, par value	$ 0.125	$ 0.125
Common stock, shares authorized	150,000	150,000
Common stock, shares issued	48,789	48,803
Common stock, shares outstanding	48,789	48,803