CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $)	Jun. 30, 2011	Dec. 31, 2010
CONDENSED CONSOLIDATED BALANCE SHEETS
Preferred stock, par value (in dollars per share)	$ 1.00	$ 1.00
Common stock, par value (in dollars per share)	$ 0.025	$ 0.025
Common stock, shares authorized	140,000,000	60,000,000
Common stock, shares issued	54,600,527	55,728,218
Common stock, shares outstanding	54,600,527	55,728,218