COMMON SHARE REPURCHASE PROGRAM (Details)	3 Months Ended	9 Months Ended
	Sep. 30, 2011	Sep. 30, 2011
COMMON SHARE REPURCHASE PROGRAM
Shares authorized for repurchase under share repurchase program (in shares)	30,000,000	30,000,000
Shares purchased in the open market under share repurchase program (in shares)	455,664	795,664
Remaining shares available for repurchase under the stock repurchase program (in shares)	5,367,322	5,367,322