CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) (Parenthetical) (USD $)	Jun. 30, 2011	Dec. 31, 2010
CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) [Abstract]
Preferred stock, par value per share (in dollars per share)	$ 1.00	$ 1.00
Preferred stock, shares authorized (in shares)	5,000,000	5,000,000
Common stock, par value per share (in dollars per share)	$ 0.125	$ 0.125
Common stock, shares authorized (in shares)	150,000,000	150,000,000
Common stock, shares issued (in shares)	127,519,095	126,346,627
Treasury shares (in shares)	114,447	52,408
Series A Junior Preferred Stock [Member]
CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) [Abstract]
Preferred stock, shares authorized (in shares)	1,500,000	1,500,000
Preferred stock, shares issued (in shares)	0	0