EARNINGS PER COMMON SHARE (Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share) (Details) - $ / shares	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive shares excluded from the computations of diluted earnings per share (in shares)	745,878	1,034,269	863,244	1,384,513
Stock options, performance and restricted shares
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive shares excluded from the computations of diluted earnings per share (in shares)	745,878	994,549	863,244	906,582
Assumed conversion of exchangeable note hedges
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Anti-dilutive shares excluded from the computations of diluted earnings per share (in shares)	0	39,720	0	477,931
Warrants on Senior Exchangeable Notes due 2015
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Exercise price of warrants (USD per share)	$ 28.11		$ 28.11