SHARE-BASED COMPENSATION - Stock Option Activity (Detail) - Stock Options - USD ($) $ / shares in Units, $ in Millions	3 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Number of Shares
Number of Shares, Outstanding, Beginning balance (shares)	231,717
Number of Shares, Granted (shares)	0	0
Number of Shares, Exercised (shares)	0
Number of Shares, Canceled (shares)	0
Number of Shares, Outstanding, Ending balance (shares)	231,717
Exercisable at end of period, Number of shares (shares)	219,767
Weighted Average Exercise Price
Weighted Average Exercise Price, Outstanding, Beginning balance (USD per share)	$ 25.12
Weighted Average Exercise Price, Exercised (USD per share)	0
Weighted Average Exercise Price, Canceled (USD per share)	0
Weighted Average Exercise Price, Outstanding, Ending balance (USD per share)	25.12
Exercisable at End of Period, Exercise Price (USD per share)	$ 25.14
Outstanding, Remaining Contractual Life	6 years
Exercisable, Remaining Contractual Life	6 years
Outstanding, Aggregate Intrinsic Value	$ 6.4
Exercisable, Aggregate Intrinsic Value	$ 6.1