STOCKHOLDERS' EQUITY (Details) - USD ($) $ in Millions	6 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Apr. 26, 2018
STOCKHOLDERS' EQUITY [Abstract]
Authorized number of shares under stock repurchase program (in shares)	500,000		500,000
Common stock repurchased during the period (in shares)	149,044	70,445
Common stock repurchased during the period	$ 10.7	$ 5.5
Shares repurchased to satisfy tax withholding obligation (in shares)	41,817	40,092
Value of shares repurchased to satisfy tax withholding obligation	$ 3.0	$ 3.9