STOCK-BASED COMPENSATION - Narrative (Details) - 2017 Repurchase Plan - USD ($)	3 Months Ended	6 Months Ended
Sep. 30, 2019	Sep. 30, 2019	May 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Authorized repurchase amount			$ 25,000,000.0
Remaining authorized repurchase amount	$ 7,100,000	$ 7,100,000
Stock repurchased during period (in shares)	0	0

Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

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Name:	us-gaap_StockRepurchasedDuringPeriodShares
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration