ACQUISITIONS & DIVESTITURES - HNT Tools Business Divestiture (Details) - USD ($)		3 Months Ended		6 Months Ended
	Sep. 14, 2018	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Mar. 31, 2019
Business Acquisition [Line Items]
Change in fair value contingent consideration in other expense		$ 500,000
Transitional services, period (up to)		18 months
Income from divestiture		$ 300,000	$ 1,200,000	$ 200,000	$ 200,000
HNT tools business | Disposed of by Sale
Business Acquisition [Line Items]
Contingent consideration related to the divestiture, measurement period	2 years
Change in fair value contingent consideration in other expense				500,000
Disposal group, not discontinued operation, change in amount of contingent consideration, asset		$ 200,000		$ 200,000		$ 800,000
HNT tools business | Disposed of by Sale | Maximum
Business Acquisition [Line Items]
Contingent consideration related to the divestiture	$ 4,000,000.0