COMMON SHARE REPURCHASE PROGRAM (Details)	3 Months Ended	9 Months Ended
	Sep. 30, 2015 shares	Sep. 30, 2015 shares
COMMON SHARE REPURCHASE PROGRAM
Shares authorized for repurchase under share repurchase program	45,000,000	45,000,000
Shares purchased in the open market under share repurchase program	2,369,771	4,715,456
Remaining common shares available for repurchase under the share repurchase program	6,590,680	6,590,680