COMMON SHARE REPURCHASE PROGRAM (Details)	3 Months Ended	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2012
COMMON SHARE REPURCHASE PROGRAM
Shares authorized for repurchase under share repurchase program	30,000,000	30,000,000
Shares purchased in the open market under share repurchase program	481,300	1,341,984
Remaining common shares available for repurchase under the stock repurchase program	3,779,773	3,779,773