EARNINGS PER COMMON SHARE (Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share) (Details) - $ / shares	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 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)	748,402	659,380	921,928	1,639,537
Assumed conversion of Senior Exchangeable Notes due 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)		501,189		0
Exercise price of warrants (USD per share)	$ 28.11		$ 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)	748,402	158,191	921,928	937,236
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	0	0	702,301