CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $)	Dec. 31, 2012	Dec. 31, 2011
SHAREHOLDER'S EQUITY:
Common stock, par value (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)		127,577,530
Treasury shares (in shares)	529,387	3,996,465
Common Class A [Member]
SHAREHOLDER'S EQUITY:
Common stock, par value (in dollars per share)	$ 0.125	$ 0.125
Common stock, shares issued (in shares)	124,740,407