SHAREHOLDERS' EQUITY (Details) - USD ($) shares in Millions, $ in Millions	1 Months Ended	3 Months Ended		9 Months Ended
	Oct. 31, 2017	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Jul. 31, 2016
Dividend Payments [Abstract]
Total dividend payout		$ 3.6	$ 3.2	$ 10.0	$ 8.6
Share Repurchase Program [Member]
Share Repurchase Program [Abstract]
Authorized amount of stock repurchase						$ 97.3
Increase to existing share repurchase program	$ 21.0
Share repurchases yet to be purchased under authorization		$ 75.0		$ 75.0
Stock repurchased and retired to date (in shares)		1.6		1.6
Stock repurchased and retired to date		$ 43.3		$ 43.3
Repurchase of common stock (in shares)		0.0	0.0	0.0	0.0