COMMON STOCK REPURCHASE (DETAILS) (USD $) In Millions, except Share data	6 Months Ended
	Jun. 30, 2011
Common Stock [Member]
Equity, Class of Treasury Stock [Line Items]
Treasury Stock Shares Acquired Since Inception Of Program	7.6
Common Stock [Member] | June 2011 Stock Repurchase Program [Member]
Equity, Class of Treasury Stock [Line Items]
Stock Repurchase Program, Authorized Amount	50.0
Treasury Stock, Shares, Acquired	31,500
Treasury Stock, Value, Acquired, Cost Method	2.1
June 2010 Stock Repurchase Program [Member]
Equity, Class of Treasury Stock [Line Items]
Stock Repurchase Program, Authorized Amount	50.0
Treasury Stock, Shares, Acquired	511,800
Treasury Stock, Value, Acquired, Cost Method	31.2