XML 15 R3.htm IDEA: XBRL DOCUMENT v3.21.2
Consolidated Balance Sheets (Parenthetical) - $ / shares
Sep. 30, 2021
Dec. 31, 2020
Consolidated Balance Sheets    
Common stock, Par value (in dollars per share) $ 1.00 $ 1.00
Common Stock, Shares authorized 60,000,000 60,000,000
Common stock, Shares issued 34,957,384 34,957,384
Common stock, Shares outstanding 28,707,737 29,328,723
Treasury stock, Shares 6,249,647 5,628,661