COMMON SHARE REPURCHASE PROGRAM (Details)	3 Months Ended	6 Months Ended
	Jun. 30, 2011	Jun. 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)	340,000	340,000
Remaining shares available for repurchase under the stock repurchase program (in shares)	5,822,986	5,822,986