CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $)	Jun. 30, 2012	Dec. 31, 2011
Preferred stock, par value	$ 0.50	$ 0.50
Common Stock
Common stock, par value	$ 0.50	$ 0.50
Class B Common Stock
Common stock, par value	$ 0.50	$ 0.50