LEASES - Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	6 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Mar. 31, 2020
Leases [Abstract]
Right-of-use assets obtained in exchange for new operating lease liabilities	$ 1,794	$ 2,049
Weighted average remaining lease term in years - operating leases	8 years 1 month 2 days		8 years 7 months 2 days
Weighted average discount rate - operating leases	4.10%		4.10%