EARNINGS PER SHARE AND ACCUMULATED OTHER COMPREHENSIVE INCOME - Antidilutive Securities Excluded from EPS Calculation (Details) - $ / shares	3 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Stock Options
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Outstanding shares	2,849,429	3,040,278
Weighted average exercise price - antidilutive	$ 35.43	$ 39.69
Restricted Stock Awards
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Outstanding shares	567,143	481,451
Weighted average exercise price - antidilutive	$ 14.54	$ 23.40