EARNINGS PER COMMON SHARE (Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share) (Details) - $ / shares	3 Months Ended
	Mar. 31, 2016	Mar. 31, 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)	1,095,453	1,650,845
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
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)	1,095,453	757,960
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	892,885